Method for automatic development of specified bottom-hole space during second bottom-hole working in underground extraction of hard coal

FIELD: mining.

SUBSTANCE: method for automatic development of specified bottom-hole space is realised during operation of treatment complex consisting of face conveyor, at least one cleanout machine and hydraulic shield powered support. In underground extraction of hard coil slope of support units in relation to horizontal is determined by means of slope sensors. Height of section of shield powered support being respective perpendicular to formation dip is calculated in computing unit. Besides height of cleanout machine penetration as bottom-hole space is recorded, and height of cleanout machine penetration is synchronised with height of section of shield powered support. At that slope sensors are arranged on at least three of four primary support units, in particular: on supporting bearer, rock-dammed shield, bearing hinged arms and rock-dammed part of supporting coverage.

EFFECT: providing automatic positioning of work equipment of complex for control and development of specified bottom-hole space.

14 cl, 16 dwg

 

The invention relates to a method to automatically create the specified bottomhole space when working stope with the AFC at least one treatment machine, and hydraulic consisting of a control room mechanized shoring, underground mining of coal.

One of the problems with automatic control works in a mining face, as in the direction of excavation, and in the direction of podvigina slaughter cleaning machine is, in particular, that, on the one hand, to create a bottom space of sufficient size to ensure the passage of the downhole equipment, such as, without collision between the cleaning machine and the shield sections of powered roof supports with the passage of cleaning machines past them, and on the other hand, to ensure the least possible collapse of rock at water treatment works, thus to limit the execution of the treatment works the horizon of the reservoir without removing too much side of the breed. Available mainly before treatment works data field related to the capacity of the reservoir, the soil and the roof of the reservoir and the presence of saddles and/or depressions, as in the direction of the grooves and the longitudinal direction of the downhole equipment, i.e. in the direction of podvigina slaughter cleaning machines are too inaccurate to use the project as a reference for automatic control of work cleaning and installation of supports.

Therefore, the basis of the invention lies in the task of developing a method of the aforementioned type, with which on the basis of data received from downhole equipment, it is possible to automate the cleaning and installation of supports for the creation of a specified bottomhole space.

The solution to this problem, including preferred options for implementation and improvements of the invention follows from the content of the claims, which set forth after this description.

The basic idea of the invention provides a method designed primarily to clean the incision with the help of the Shearer drum by the Executive body as a cleaning machine, in which by means of sensors of the slope, posted in at least three of the four main nodes of each partition panel powered roof supports, that is, the supporting skid, goaf shield bearing swivel consoles and goaf area support the ceiling, determine the pitch of the nodes of the lining with respect to the horizontal direction on the basis of the changed data in the data block by comparison with stored reference data, determining the geometric orientation of the nodes and their movement during walking move, calculate the corresponding perpendicular with respect to dip the height of the partition shield the howl of powered roof supports, in which, in addition, through installed on the cleaning machine sensors register the height of the cutting cutter machine as the bottom space, and the corresponding sets of data are kept for each site clearing works, traversed corresponding section of the shield of powered roof supports, and synchronize in the sense of simultaneous analysis by location on the site of the treatment works, the height of the cutting cleaning machine with the height of the lining section of the shield of powered roof supports when moving with a time delay section mechanized shield lining reaches that place belongs to the height of the cutting cleaning machine underlying the comparison with the height of the lining.

With the invention involves the advantage that, first of all, on the basis determined with relatively little cost to the height of the supports have the option to control bottom hole with sufficient accuracy and reliability. Another obtained according to the invention the parameter consists of the registration of the direction of cutting cutter machine by specifying its absolute height of cutting. As supporting overlapping the corresponding section of the shield mechanized lining reaches the purified cleaning machine area when moving past the shield section of powered roof supports with h the delay time, that is, with the so-called delay of support in one or two steps lining, the invention provides that the respective sets of data are kept for each site wastewater treatment works, which was the relevant section of the shield of powered roof supports, and are synchronized in the sense of simultaneous analysis by location. Thanks so much, you may receive information about whether or not exempt cleaning machine height incision and subsequent height lining in this place or perhaps appearing false roof or ongoing convergence lead to deviations of the height of lining up or down from the height of the incision which should be considered during the next move cleaning machine by modifying or adapting its height of cutting. Same thing this refers to the passage of depressions and/or saddles, as appropriate to the invention the method is used mainly obtained the height of the lining to the height of the cutting cleaning machine to provide an automatic control circuit to control the operation of cleaning and the installation of the lining, which in the application of this circuit leads to the automatic compliance with specified bottomhole space. With regard to the purpose as an indicator of the height of the face can be applied is defined in the front edge of the support item is recrute perpendicular with respect to dip the height of the roof support between the upper edge of the floor and the bottom edge of the supporting skid. As a control value to control the height of the corresponding section of the shield of powered roof supports are also suitable height lining in the upper part of the shield support, because otherwise the relative angle between the supporting floor and the base runner in certain phases of the negotiation height leads to strong changes in the height of the edge of the overlap. Therefore, it may be appropriate to define the height of the supports overlap between the support and the base runner at any places and to use for the corresponding method is the most suitable place for height control.

According to one example embodiment of the invention can provide that the stored data sets for the height of the cutting height and lining synchronize with each other at the same time in the sense of simultaneous analysis for the selected site wastewater treatment works. Even if at the moment of synchronization, the corresponding section of the shield of powered roof supports have not yet reached the cleared area, simultaneous analysis of existing datasets can be used to make predictions regarding the development of bottom-hole space and changes the bias on the shield sections of powered roof supports during the subsequent promotion of purification, so that on the basis of appropriate education is ω calculated trends in the bottom space can advance to coordinate the work of cleaning and the installation of the lining with respect to a predefined bottom area.

In addition, in one embodiment, the invention provides that effective for individual stope on the basis of data on the field, as well as for used mining equipment machine data previously set corresponding to the desired bottom space of predetermined height to the height of the shield sections of powered roof supports and the deviations of the calculated actual height of the lining from a given height lining is automatic control of the height of the cutting cleaning machine to achieve the desired height of the liner. Valid for the bottom space of predetermined height lining get, on the one hand, on the basis of the structure of the treated layer, and the cleaning should be regularly record the material between the hard top and hard soil layer. Thus, it optionally includes the clearance between the coal and hard roof wet packs fossil, as well as between coal and hard soil layer heterogeneous fossil layer. On the other hand, special attention should be paid to the data sections of the shield of powered roof supports, primarily their workspace between relying on hard soil layer and odpiranje hard roof, so that the cutting height should not be greater than the working area of the sections sitovo the mechanized roof. When this predetermined height ramping expect so that it was possible the passage of the cleaning machine with a pre-set height ramping within the working height of the shield sections mechanized roof without collision. Because while working hard coatings should not be captured cleaning machine, when determining the height of the incision, if necessary, to provide for the planned dredging of soil formation to achieve the desired bottom hole space even at low levels of formation.

Based on the provided according to the invention the continuous monitoring of the actual height of the support can from hitting the cutting cleaning machine to check whether they are created by the treatment machine bottom space as determined by the height of the shield, or whether there are deviations up or down. In accordance with these variances, it is possible to carry out automatic control of cleaning the machine, namely either by changing the upper plunge ahead on the drum, which, however, must not tackle the hard roof, or by changing the lower incision on the trailing drum. The choice of the values of the lower incision or, if necessary, the values of the upper incision, if necessary, adjust for different deviations of actual height lining octaganol height lining.

Due to this sudden change in the slope of the supporting beams of the individual sections of the shield of powered roof supports in limited areas of stope in the direction of higher bottomhole space allow us to conclude about the presence of locally constrained collapses, and can thereby be distinguished from, perhaps incorrectly configured the height of the cutting cleaning machine.

Comparison of a given height to the actual height of the shield may overlap because of the emergence of convergence, which reduces purified bottom space despite the supportive effect used shield of powered roof supports. For example, according to one embodiment of the invention provides that if the value of the height of the incision is smaller than the height of the shield, on the basis that determine the emergence of convergence and, for example, compensate for this convergence by increasing the lower incision. Therefore it is possible deliberately to compensate for the impact of convergence on the height of the face. In one particular example embodiment of the invention provides that in the case of scheduled stoppages bottom space to increase the size of the convergence expected during the shutdown.

Since the formation of the bottom space through podvigina stope also is depends on in what position relative bias is cleaning machine with its reel relative to the shield sections of powered roof supports, according to one embodiment of the invention provides that on the face conveyor and/or cleaning the machine, respectively, has a tilt sensor, and determine the angle of inclination of the face conveyor and cleaning machine for cleaning. It is quite one of a tilt sensor on the treatment machine. While moving on the face conveyor and sent him cleaning machine in some way forms a single unit with the face conveyor in order to improve control accuracy, it may be desirable also to provide for the registration of the slope of the AFC posted by sensor bias. When necessary for management purposes, rather occupancy sensor bias only on the downhole Assembly line.

Check the behavior of the bias cleaning machine relative to the position of section cleaning mechanized lining allows for relative angular positions of the sections of the shield mechanized lining and cleaning of the machine relative to each other, on the one hand, to determine the angle between the supporting skid shield section mechanized lining and cleaning of the machine or the AFC, and on the other hand, the angle Rasso is losowania overlap between the support section of the shield mechanized lining and cleaning machine or the face conveyer and to consider the appropriate angle mismatch in calculating created cleaning machine when treatment works bottom-hole space. For example, it may be appropriate to record the angle of the supporting skid, measured in the direction of clean, available on the support skid shield section of powered roof supports tilt sensor, relative to the horizontal and used as a control value as a runner, as a rule, is moved not by natural soil formation, and along the purified stepped contour traces of the cutting drum. Therefore, when installing the shield section of powered roof supports because of the high unit pressure of the supporting skid with a peak pressure, manifested near the end of the supporting skid, often immersion in an artificial soil layer. This immersion of the supporting skid is not parallel to the position, but because of the pressure distribution on the support skid to a greater extent at the end of the supporting skid, so that the reference runner performs a rotational movement. To counter the so-called "basic lift"through which the supporting skid separate section of the shield of powered roof supports can be raised compared with the supports overlap within walking movement. When using the support lift support runners of the corresponding section of the shield of powered roof supports odnim the Ute before stepping movement, to support the runners could move a sliding movement in the soil layer or lying on her Nabal repulsed fossil. This prevents a stronger immersion of the support runners. Also supporting the lift is suitable for the useful alignment section of the shield of powered roof supports when moving forward. In cases when the reference runner moves through the soil layer without big problems, enough control section mechanized shield lining with the registered inclination of the supporting skid; in this respect, the determination of the angle of the supporting skid is not required. On the contrary, in the case support the ceiling, this case rarely occurs, while on the roof do not receive the collapse of the false roof, as supporting the ceiling, as a rule, is moved along the natural horizon of the roof. Thus, as a rule, dive support the ceiling in the roof does not occur. However, when convergence occurs, the loss of height with the upcoming thereby the angular movement of the supports overlap, so that, as already indicated, the relative position between the cleaning machine and supports overlap allow to draw conclusions about the expected bottomhole space.

In addition, registered by controlling the bias on the treatment machine uphill clear the th machine in the direction of cleaning leads to a decrease in bottom-hole space with the danger of collisions cleaning machine with shield sections mechanized roof, while moving the cleaning machine downhill leads to an increase in the bottom space, which under certain conditions exceeds the maximum working area of the shield sections of powered roof supports. This should be considered by aligning the height of cutting on the treatment machine.

Such movement of the treatment machine uphill or downhill inevitably happens when you move through depression and/or saddle in the direction of cleaning. For example, the entry in the saddle recognize registered through changes of the slope adjacent to the roof supports overlapping section of the shield of powered roof supports. Based on the amount of change of the slope between the two stepper movements shield of powered roof supports forward, you can calculate the height change in the sense of decreasing height for each subsequent step of moving the corresponding section of the shield of powered roof supports. To hold the bottom space configured on the specified level and prevent the reduction of the bottom space at the same time, the machine must perform the driving motion to reduce the lower incision. Next the excess of the upper saddle point can be detected by the change of slope support the ceiling relative to horizontal. These data are used for sabragabrels the CSO control by cutting through recovery management segment decreased height to the original position, to set the height of the bottom space was also observed during the passage of the saddle. Accordingly, the management process, but in the opposite direction, is configured with the passage of depressions, in which the fundamental point of view dominates the identical course of changes of direction.

Located on the shield sections of powered roof supports sensors bias also indicate the magnitude of the slope of the shield sections of powered roof supports transversely to the direction of purification, so as in the direction of podvigina slaughter cleaning machines in the mine may be the saddle and depression. So the line of the roof and the soil layer in the longitudinal direction of the face can be inferred from the slope of the shield sections of powered roof supports, there is a possibility to manage the way leading drum and the trailing drum cleaning machine during constant step motion to exclude the unwanted area of the roof or perhaps beyond the configured size of the excavation of the soil layer, making prevent excessive capture of waste rock or abandonment of coal under the roof, or the emergence of bottlenecks between the cleaning machine and mechanized shield lining.

According to one example embodiment of the invention provides that as sensor bias using the I the acceleration sensors, on the basis of the deviations from the gravitational acceleration register the angular position of the acceleration sensor in space. Thereby physically determined angle relative to the vertical, which are converted to the draft angle of the slope of the nodes of the lining relative to horizontal.

With the aim of eliminating the errors caused by fluctuations of the used nodes may be provided that certain sensors acceleration measurement check and correct by an appropriate attenuation method.

The drawings show examples of carrying out the invention

Figure 1 represents a section of the shield of powered roof supports with the placed sensors slope in combination with a downhole Assembly line and used as a cleaning machine, cleaning machine with a drum body in schematic side view,

Figure 2 - downhole equipment according to figure 1 with simultaneous analysis by location,

Figure 3 - downhole equipment according to figure 1 for light work in the schematic diagram,

Figa - downhole equipment according to figure 1 with the slope of the treatment machine in the mountain

Figb - downhole equipment according to figure 1 with the slope of the treatment machine under the mountain,

Figa-in - a schematic representation of the time-shifted moving section of the shield is howling mechanized roof after podvigina cleaning machine

Figa-z - schematic representation of the regulation, to achieve a predefined bottom space on the basis of starting too big height lining.

On the basis of the following explanations to the figures explains the basic provisions of the method according to the invention.

Presented at the figure 1 downhole equipment includes, first of all, section 10 shield powered roof supports with base runner 11, which is placed parallel to the two uprights 12, of which figure 1 is visible only one hour, and have their upper end is supporting the ceiling 13. While supporting the ceiling 13 of his front (left) end directed to the described cleaning machine on the rear (right) end support the ceiling 13 by hinge 15 is articulated goaf shield 14, when it dammed the shield is supported in the form of two side located on the supporting skid 11 bearing swivel console 16. In the depicted example implementation in section 10 shield powered roof supports installed three sensor 17 of the draft, namely, the sensor 17 of the slope on the supporting skid 11, the sensor 17 of the slope in the rear part of the support overlapping 13 near the hinge 15 and the sensor 17 of the slope on the goaf shield 14. As it is not presented in more detail, at the fourth mobile node is ecchi 10 shield powered roof supports, bearing hinge brackets 16 may also be a sensor of the draft, of the four possible sensor 17 of the slope should be set three sensor bias for using the obtained slope values to determine the position of the shield section of powered roof supports in a mining space. Thus, the invention is not limited to accurately depicted on the figure 1 location of sensor bias, and includes all possible combinations of three sensors focus on four mobile nodes section of the shield of powered roof supports.

Presented at the figure 1 section 10 shield powered roof supports attached to the face conveyor 20, which also has a sensor 21 of the slope, making from the point of view of control downhole equipment and also here, in principle, possible to obtain data on the position of the conveyor. The conveyor 20 is a treatment machine in the form of the Shearer 22 with the drum by the Executive body, having a top (cutting) the drum 23 and the bottom (cutting) the drum 24, in the area of the Shearer 22 with the drum by the Executive body is the sensor 25 of the slope, in addition, the sensor 26 to register the corresponding location of the Shearer 22 with the drum by the Executive body in the mine, as well as measuring rods 27 for measuring the height of the cutting PTS the local harvester with drum 22 by the Executive body. Mechanical equipment downhole equipment is complemented by the installation of sensors 18 on the racks 12, through which you can change the position support the ceiling 13 in height by setting the height of the extension rack 12. In addition, the anchor runner 11 is installed 19 measurement path by which is determined the appropriate course of step section 10 shield powered roof supports relative to the face conveyor 20. As already indicated, there is no urgent need in the placement of the sensor 21 of the slope on the face conveyor 20, if a clearing processor 22 from the drum by the Executive body mounted sensor 25 of the draft. In this case, the sensor 21 of the slope may be provided additionally to improve the accuracy of the measurements.

As can be seen in figure 2, to control the operation of cleaning and lining installation use the height 31 of the lining, and also the height 32 of the cutting cleaning machine 22. At the height of the lining 31 is defined between the upper edge of 35 support the ceiling 13 and the bottom edge 36 of the supporting skid 11 based on the values received from sensors 17 bias. At the same time as the indicator for the height of the face is used, the height calculated for the end support the ceiling 13. As a control value to control the height of the shield section of powered roof supports OS is especially suitable height lining in the upper part of the shield lining, because otherwise the relative angle between the supporting floor and the base runner in the phases of negotiation height leads to strong changes in height relative to the supporting beams. Therefore, it is suggested to determine the height of the shield in any position between the supporting floor and the base runner in the field of the shield section of powered roof supports and used for the corresponding method is most suitable position for height control.

Height 32 of the shield is determined by using the measuring rod 27 between the upper edge 37 of the upper drum 23 and the bottom edge 38 of the lower drum 24. As can be seen in figure 2, the height 32 of the cutting is performed by the first coordinate of 33, while the height 31 of the shield is determined by behind coordinates 33 coordinate 34. The reason for this is that section 10 shield powered roof supports moves to coordinate with 33 time delay only after completion of the treatment machine 22, so being first when determining the height 32 of the cutting on the coordinate of the front edge 34 support the ceiling 13 is moved to the coordinate 33 at a later point in time. Thus, simultaneous analysis of the obtained data by location means that synchronization height 32 incision and the height 31 of the shield is made only when late the traveler with time delay section 10 shield mechanized lining reaches coordinates 33, which is based on the underlying comparison with the height of the lining 31 height 32 ramping cleaning machine 22. Simultaneous analysis of time comes from the corresponding values for the height of the shield 31 and 32 height ramping, calculated at the current point on the coordinate 33 or coordinate 34, respectively, at the same time.

When working downhole equipment you receive the working situation represented in the form of the example in figure 3. Horizon 43 reservoir, located between the roof 40 and 41 soil formation, cleaned cleaning machine 22, the height 32 of the cutting moving in the direction 44 podvigina slaughter cleaning machine 22 is configured so that the recess 42 of the soil layer was carried out by the lower drum 24. Front upper drum 23 is configured with this so that he was left under the roof 40 narrow coal pack, which is due to the incision itself is separated from the roof. Thus, figure 3 shows a customized height 32 of cutting. As can be seen, in this case, the height of the lining 31 is configured to a greater value than the height 32 of the incision, so as to provide a passage cleaning machine 22 by section 10 shield mechanized lining without collisions.

In figure 4A and 4B presents the status that appears in the case when cleaning the machine 22 is sloped uphill relative to the section 10 shield mechanically the lining (figure 4A), which is reflected in the formation of an angle of 45 the error between the reference runner 11 and the lower drum 24 cleaning machine 22. As seen on figa, in this case, increasing the risk of collision between cleaning machine 22 and section 10 shield powered roof supports, and this risk can be reduced by changing the height of cutting. The same applies to the situation illustrated in figure 4B, in which the treatment machine 22 is sloped downhill. Here, you'll see an angle of 45 the error, which can be limiting on the basis of registered sensors 17 draft or 25 and 21 of the provisions of the cleaning machine 22 and section 10 shield powered roof supports, and the corresponding appeared angle of 45 the error should be taken into account when managing the slaughter.

In figures 5A-5B schematically shows that the impact of managing movement that is configured on the treatment machine by changing its height of cutting or position of the incision, for example in the form of lower incision itself and section panel of powered roof supports with a delay of several subsequent step-by-step movement of the partition panel of powered roof supports.

So, first of all, figure 5A shows that treatment machine 22 should be relatively soil layer 41, which is section 10 of the shield mechanism is trated lining, directional move down through two designated as 50A and 50b horizon ramping, which are two of the planned incision into the soil layer. As can be seen in figure 56, section 10 shield mechanized lining is still in the ground layer 41, while at the same time the machine 22 has reached a new horizon 50b plunge as new soil formation. Thus, during the two treatment displacements cleaning machine 22 initially only treatment machine 22 and the face conveyor 20 responsive to predetermined control pulses. Only in the phase of work presented on figure 5B, section 10 shield powered roof supports should be in the direction of the movement under mount cleaning machine 22, figures 5B and 5B it is shown that during lowering of the treatment machine 22 and the AFC 20 relative to the original soil layer 41 height ramping cleaning machine 22 should be controlled so that during a subsequent step movements shield of powered roof supports in the phase of the works presented in figure 5B, there have been excessive height of the liner. In this respect, figure 5B shows that there the height of the cutting cleaning machine 22 has decreased in comparison with figures 5A and 5B, in order to avoid too large bottom space. While section 10 shield mechanized lining is made is presented at figure 5B, the position of the slope with the transition to a new horizon 50b soil formation, have to go to the corresponding increase in the height of the bottom space.

From a fundamental point of view should be provided free setting of control parameters. The speed negotiation height adjustment should be set by the maximum height of a step with a free setting. It is important not to choose too large separate stages when the movements up to the AFC when podviganiya was not suspended on one step, and the AFC is necessary to raise or existing control system must tilt the AFC.

Now with reference to figures 6A-s need more to describe the management process for the regulation of bottom space based on available initially too high bottom-hole space. While a single strip cutting cutter machine 22 in the direction of clearing marked on the order of Arabic numerals 1...8. The top line of cutting the top of the drum shown by the solid line 37, respectively, the bottom line is hitting the bottom of the drum shown by the solid line 38. Supporting the ceiling 13 and the base runner 11 corresponding section 10 shield mechanized roof also shown in the form of solid lines and indicated by corresponding reference symbol is mi.

As first seen on figure 6A, the previous run hitting presented in these unnumbered parts of the incision to the left of the first strip 1 start of cutting, for which the line 38 of cutting the bottom of the drum sets the level for sliding movement of the supporting skid 11. As you can see, the top line 37 of cutting a little off the strip cutting band incision, however, supporting the ceiling 13 is clearly above the upper line 37 incision, so that the height of the shield is greater than the height of cutting. It can be assumed that the source height for the height 31 of the shield is 3.0 m, while should be observed given the height of the bottom space only 2,30 m presented in figure 6A, lane 1 ramping can be seen that to achieve the objectives of regulation and configured incision is made from the upper to the lower drum, so that the lower line 38 ramping rose relative to an initial condition. The top line 37 incision has not changed. As presented in figure 6b, lane 2 cutting system initiated the implementation of additional upper incision on the lower drum (line 38 ramping). At the same time can be seen that the supporting runner 11 have not changed their position as the anchor runner 13 still moves initially created the soil layer.

In the case of the primary figures 6b band 3 ramping with the system is determined, what is now derived the height of the incision corresponds to the set height for the bottom space, so that the band 3 incision is neutral with cutting not changed height of cutting. It is accordingly also relates to that shown in figures 6g-s lanes 4-8 cutting. Regarding the reaction section 10 shield powered roof supports should be noted that the supporting runner 11 reaches the cut in the band 1 cutting step only when podviganiya strip 5 of the incision and thereby moves the mountain, which continues to strip 8 of cutting. In the band 8 hitting the front edge of the supporting runner 11 has reached a new level of soil formation and is now published by step motion on subsequent lines of incision to a predetermined height. The above process can be monitored and controlled by controlling the position of the bias cleaning machine and its height of cutting, as well as provisions of the slope of the nodes section 10 shield powered roof supports.

Experience the process of moving is, if you want to increase the bottom-hole space, proceeding from the first to the low height of the shield. Also in this case, the control begins to increase the height of the cutting cleaning machine by reducing the incision at the bottom of the drum, so that the supporting skid shield section of powered roof supports when Ude the shrink at the same level supporting the ceiling moves down at a predetermined cleaning machine excavation of soil formation, until you reach a new level of cutting for stepping movements shield of powered roof supports.

Disclosed in the parent description, claims, abstract and drawing characteristics of the subject of this documentation, both individually and in any combination with each other, may be essential to implementing the invention in its various structural forms of implementation.

1. A way to automatically create the specified bottomhole space when working stope, with a face conveyor (20), at least one treatment machine (22), as well as hydraulic consisting of a control room mechanized shoring, underground mining of coal, in which: through sensors (17) draft posted, at least three of the four main nodes of each section (10) shield of powered roof supports, that is, the supporting runner (11), goaf shield (14), bearing hinge brackets (16) and goaf area support the ceiling (13)determine the slope of the nodes of the lining relative to the horizontal, and on the basis of the changed data in the data block by comparison with stored reference data, determining the geometric orientation of the nodes and their movement during step motion, calculate the corresponding perpendicular with respect to the dip height (31) behold the tion (10) shield of powered roof supports, and in which, furthermore, are installed on the treatment machine (22) sensors (27) register high (32) ramping cleaning machine (22) as the bottom-hole space, and the corresponding sets of data are kept for each site clearing works, passed the appropriate section (10) shield of powered roof supports, and synchronize in the sense of simultaneous analysis by location on the site remediatio height (32) ramping cleaning machine (22) height (31) roof support section (10) shield of powered roof supports when moving with a time delay section (10) shield mechanized lining reaches that place belongs underlying the comparison with the height of (31) lining the height (32) ramping cleaning machine (22).

2. The method according to claim 1, in which the stored data sets for the height of cutting (32) and the height of the shield (31) synchronize among themselves at the same time in the sense of simultaneous analysis for site clearing works.

3. The method according to claim 1 or 2, in which for certain cleanup work on the basis of data on the field, as well as machine data used downhole equipment pre-specify a predetermined height for height (31) of the shield section (10) shield of powered roof supports, and when the deviation calculated actual height of the lining from a given height cu the PI perform an automatic height control (32) ramping cleaning machine (22) to achieve the desired height of the lining.

4. The method according to claim 3, in which the height (32) ramping cleaning machine (22) is set by changing the upper incision on one of the reels (23, 24).

5. The method according to claim 3, in which the height (32) ramping cleaning machine (22) is set by changing the lower incision on one of the reels (23, 24).

6. The method according to claim 3, in which decreasing heights (32) ramping less than the height of (31) shield calculate emerging convergence and compensate for this convergence by increasing the lower incision.

7. The method according to claim 6, in which in the case of scheduled stoppages bottom space to increase the size of the convergence expected during the shutdown.

8. The method according to claim 1, in which the face conveyor and/or cleaning the machine, respectively, has a tilt sensor, and determine the angle of inclination of the face conveyor and cleaning machine for cleaning.

9. The method according to claim 8, in which is calculated based on the measured in the direction of the cleaning angle AFC and cleaning machine, the angle of misalignment between the support skid shield section of powered roof supports and the conveyor or cleaning machine account in the calculation of the crop cleaning machine bottom space.

10. The method according to claim 8, in which is calculated based on the measured in the direction of the cleaning angle UKL is on the AFC (20) and/or cleaning of the machine (22) angle (45) mismatch between the supporting floor (13) of section (10) shield of powered roof supports and the conveyor (20) or cleaning machine (22) into account in the calculation of the crop cleaning machine (22) bottom space.

11. The method according to claim 1 or 8, in which by determining the slope of a supporting floor (13) of section (10) shield of powered roof supports in the direction of purification determine the direction of the depressions and/or saddles in the direction of cleaning and detected by changes of slope support the ceiling (13) within a predefined period of time in advance calculate the change in the bottom space and accordingly configure the management cutting cutter machine (22).

12. The method according to claim 1 or 8, in which by determining the slope of the individual sections (10) shield of powered roof supports transversely to the direction of purification determine the direction of the depressions and/or saddles in the direction of podvigina slaughter cleaning machine (22) and control the cutting cleaning machine (22) so that the drums (23, 24) followed by the detected direction of the depressions and/or saddles.

13. The method according to claim 8, in which the sensors (17) slope using acceleration sensors, which are based on deviations from the gravitational acceleration register the angular position of the acceleration sensor in space.

14. The method according to item 13, in which for exceptions caused by fluctuations of the used nodes of errors defined by the acceleration sensors measurement check and correct on what redstem appropriate method of attenuation.



 

Same patents:

FIELD: mining.

SUBSTANCE: in control method of drum actuating element equipped at least with one lever of drum actuating element each electric hydraulic section of the support is equipped with its own electric hydraulic control instrument. Control commands are entered for correction of lever position of drum actuating element from control instrument of support section. And they are supplied from there to control system of drum actuating element.

EFFECT: improving control efficiency of the cut by means of drum actuating element.

8 cl

FIELD: mining.

SUBSTANCE: extraction device of coal in longwall face of underground mine working consists of the following: many sections of powered support, which are installed near each other throughout the length of longwall face between gates; plough machine; chute and conveyor located in it with possibility of movement, which are located throughout the length of longwall face between extraction machine and support sections; several deflecting devices and control device. Plough machine is provided with possibility of being moved along the line of the mining face and equipped with rock detection sensor which is provided with possibility of transmitting radio data of the detected rock to the control device of the support by means of the transmitter installed on the plough and the radio receivers installed along the longwall face. Group of adjacent support sections and sections of the chute corresponds to each deflecting device. Deflecting device is connected to control unit of one of the support sections of the appropriate group, and depending on the data of the detected rock, it provides the possibility of lifting the chute sections of the appropriate group, which is accompanied with lowering of the tools of the plough machine, and lowering of the chute sections, which is accompanied with lifting of plough machine tools. Control device includes the following: bottomhole control unit located at the end of longwall face for control of functions of support sections in relation to unloading, transportation and bracing of the support; control units of sections, each of which is put into spatial and functional compliance with the appropriate support section for performing and further transmitting the commands from bottomhole control unit; and the bus connecting mainly in series the bottomhole control unit to control units of support sections. At that, rock sensor when moving beside each support section is provided with possibility of generating the measurement signal characterising the detected rock only for several, mainly not more than two measurement points. Measurement signals received at neighbouring measurement points are subject to analysis with a view to predominance of rock or coal. Depending on analysis results, there generated is deviation signal supplied to the common deflecting device common for all measurement points, and namely to the deflection of the chute sections, which causes the lifting of plough machine tools if analysis results show the predominance of rock at the analysed measurement points, and to deflection of the chute sections, which causes the lowering of the plough machine tools if the analysis results show coal predominance at the analysed measurement points.

EFFECT: possible quick correction of the plough machine position during the coal extraction, which causes the lifting and lowering of the plough.

9 cl, 2 dwg

FIELD: mining.

SUBSTANCE: equipment consists of electric-hydraulic driven sections of lining with corresponding facility for lining control. Additionally, there is foreseen at least one doubled block of power source, which provides current for at least two means of lining control of different sections of lining independently from each other. A double-sided element of communication is installed between the power source block and at least two means of lining control; this element performs galvanic separation between the power source block and means of lining control and/or groups of means of lining control. Also the element of communication forms a galvanic separated data transmitting channel which facilitates communicating between two means of lining control and/or groups of means of lining control. Notably, double-sided element of communication is in-built into the power source block or is flange mounted directly on the case of power source block.

EFFECT: simplification of design of face equipment.

4 cl, 2 dwg

FIELD: mining.

SUBSTANCE: invention relates to control system over underground face support with transport. The control system for underground walking face support consists of transporter, winning machine, plurality of panels each equipped with a block of functional control with a corresponding panel, of a facility connecting control blocks between themselves, of a central station located outside long wall face and communicating means for transmitting data between control blocks in the long wall face and the central station outside long wall face. The communicating means include at least one radio transmitting device from the side of the long wall face and one radio transmitting device from the side of the central station with receiving and transmitting modules to facilitate wireless and cable less two-directional data transmitting at the long wall face end.

EFFECT: minimisation of costs for cable laying for underground control system over face support and increase of reliability of face support control.

7 cl, 2 dwg

FIELD: mining.

SUBSTANCE: support control system to control shield support section movement in breakage face of mine contains central device of control (CDC) and set of control units (CU) each of those is located at corresponding section and functionally coupled with this section. At that CU of sections are connected with CDC and between each other with two bus bars and designed so as to facilitate a call of CU of any section from CDC or from CU of the neighbour section to control command input. Also CU of each section is programmed so as to transmit received control commands via the bus bar; the said commands, equipped with a code word assigned to the CU called at that moment, are transmitted to this particular CU for execution. Owing to the second analog bus bar (a parallel one) received signals not equipped with the code word assigned to the CU called at the moment, are transferred to CU of the neighbour section.

EFFECT: upgraded reliability of excavating machine and mechanised support due to safe and trouble free operation of their work with insignificant costs for maintenance.

2 cl, 3 dwg

FIELD: engines and pumps, mining operations.

SUBSTANCE: system composed of hydraulic units for underground mining operations is intended for, particularly, underground working supports, actuators and/or pickups, all of them being encased and interconnected or can be connected, via a data transfer system, to the control unit. Note that every actuator is designed to make every hydraulic unit function operate and/or every pickup is set up to read out the hydraulic conditions at the point of measuring whatever quantity of the walking support. Mind that every actuator (3) and/or sensitive element (7, 8) in its casing (4; 18, 19) are wired to readout unit (20; 30), while hydraulic unit (1) for every function (2) or every point of measurement is connected to data element (12; 13) connected in the circuit to allow a readout unit with a receiver and/or transmitted module (20; 30) to effect a contactless inductive data readout therefrom and to transmit the said data to control unit (6). Data element (12; 13) represents a transponder or a transmitter incorporating a receiver coil. The control unit (6) uses this data via the data transfer system to allow an automatic single-valued identification and reprogramming.

EFFECT: faultless connections.

8 cl, 3 dwg

FIELD: mining.

SUBSTANCE: system includes multiple control units (CU), each positioned at the respective section and functionally conjugated thereto. The CU of each section features multichannel transceiver, whereby a CU communicates to a portable decentralised control device for controlling signal reception and measurement and condition data transmission in the simultaneous transceiving mode. Section CUs are programmed so that controlling signals received by radio are not converted into lining section functions unless the controlling signal carries a code word assigned to the addressed CU. Section CUs are preferably interconnected by two electric buses for transmission of entered data to all section CUs and feature amplifier for restoration of signals received via electric bus.

EFFECT: improved operation reliability of winning machine and powered support due to sustaining safe and fail-proof operation at low cost.

3 cl, 3 dwg

FIELD: mining.

SUBSTANCE: lining sections are connected to an expansion tensioner (ET) conveyor consisting of power cylinders. The lining is equipped with a control system performing data collection and storage and programming continuous concordance of holding force distribution along the breakage face and/or amount of holding forces along the breakage face (total holding force) and/or advancing force distribution along the breakage face at given conveyor position. It allows determining total holding force in respect to the maximum set for it, by ET number, affecting total holding force by axial force adjustment for separate ETs, or affecting total holding force depending on the position of at least one end conveyor section.

EFFECT: minimisation of expansion tensioner number and pressure feeding them at reduced cost.

9 cl, 4 dwg

FIELD: mining.

SUBSTANCE: invention relates to the mining industry and is intended for monitoring movements of sections of the shield support in the working face of the mine. The system has a central control unit (CCU) and a number of peripheral control units (PCU), each of them being located beside the appropriate section and conjugated functionally with the same. PCU of sections are connected with CCU and interconnected by two electric buses so that each PCU can be activated from CCU or from an adjacent PCU for input of a control command. PCU of each section is programmed so as to transmit control commands received through the electric bus provided with a code word assigned to PCU to be activated. Besides PCU of each section has a switch, which enables to disconnect electric buses. By means of the second similar electric bus (the parallel bus) the input signal not provided with the code word assigned to PCU to be activated can be transmitted to PCU of the adjacent section.

EFFECT: safe, trouble-free and reliable operation of the winning machine and the powered support with insignificant expenses for maintenance.

3 cl, 3 dwg

FIELD: mining industry.

SUBSTANCE: method for extraction and underground use of coal includes cleaning extraction and dumping of coal, fixing and controlling ceiling and transporting coal along face to drift. On the drift, in moveable generator, coal is pulverized for intensive burning with use of jets in water boiler firebox, where high temperature of steam is achieved (about 1400 C°), enough for decomposition of water on oxygen and hydrogen. These are separated, then oxygen is fed back to jets, and hydrogen is outputted along pipes and hoses in drifts and shaft. Variants of underground generator for realization of this method are provided. Also provided is method for extraction of disturbed coal beds by short faces. It includes extraction and dumping of coal on face conveyor, fixing of ceiling behind combine, moving conveyor line and support sections in direction of cleaning face displacement, control of ceiling with destruction and partial filling. Extraction of coal is performed in short curvilinear faces by long stripes along bed, in straight drive without forwarding drifts, with preservation and reuse of ventilation and conveyor drifts, equipped with mounting manipulator robots, with fixing behind combine by automatically operating support deflectors without unloading and displacing sections in area of coal extraction. Extraction and transporting of coal is performed by fast one-drum combine and curvilinear reloading conveyor, supplying coal to drift conveyor or immediately to underground gas or energy generator placed immediately on drift. Also proposed is face scraper conveyor for realization of said method, wherein pans are made with step along front face profile, greater, than along back one, while forming common line curved towards face with constant curvature. Also proposed is a method for controlling complex for unmanned coal extraction.

EFFECT: higher efficiency, effectiveness, broader functional capabilities.

8 cl, 5 dwg

FIELD: mining.

SUBSTANCE: method for automatic development of specified bottom-hole space is realised during operation of treatment complex consisting of face conveyor, at least one cleanout machine and hydraulic shield powered support. In underground extraction of hard coil slope of support units in relation to horizontal is determined by means of slope sensors. Height of section of shield powered support being respective perpendicular to formation dip is calculated in computing unit. Besides height of cleanout machine penetration as bottom-hole space is recorded, and height of cleanout machine penetration is synchronised with height of section of shield powered support. At that slope sensors are arranged on at least three of four primary support units, in particular: on supporting bearer, rock-dammed shield, bearing hinged arms and rock-dammed part of supporting coverage.

EFFECT: providing automatic positioning of work equipment of complex for control and development of specified bottom-hole space.

14 cl, 16 dwg

FIELD: mining industry.

SUBSTANCE: method for extraction and underground use of coal includes cleaning extraction and dumping of coal, fixing and controlling ceiling and transporting coal along face to drift. On the drift, in moveable generator, coal is pulverized for intensive burning with use of jets in water boiler firebox, where high temperature of steam is achieved (about 1400 C°), enough for decomposition of water on oxygen and hydrogen. These are separated, then oxygen is fed back to jets, and hydrogen is outputted along pipes and hoses in drifts and shaft. Variants of underground generator for realization of this method are provided. Also provided is method for extraction of disturbed coal beds by short faces. It includes extraction and dumping of coal on face conveyor, fixing of ceiling behind combine, moving conveyor line and support sections in direction of cleaning face displacement, control of ceiling with destruction and partial filling. Extraction of coal is performed in short curvilinear faces by long stripes along bed, in straight drive without forwarding drifts, with preservation and reuse of ventilation and conveyor drifts, equipped with mounting manipulator robots, with fixing behind combine by automatically operating support deflectors without unloading and displacing sections in area of coal extraction. Extraction and transporting of coal is performed by fast one-drum combine and curvilinear reloading conveyor, supplying coal to drift conveyor or immediately to underground gas or energy generator placed immediately on drift. Also proposed is face scraper conveyor for realization of said method, wherein pans are made with step along front face profile, greater, than along back one, while forming common line curved towards face with constant curvature. Also proposed is a method for controlling complex for unmanned coal extraction.

EFFECT: higher efficiency, effectiveness, broader functional capabilities.

8 cl, 5 dwg

FIELD: mining.

SUBSTANCE: invention relates to the mining industry and is intended for monitoring movements of sections of the shield support in the working face of the mine. The system has a central control unit (CCU) and a number of peripheral control units (PCU), each of them being located beside the appropriate section and conjugated functionally with the same. PCU of sections are connected with CCU and interconnected by two electric buses so that each PCU can be activated from CCU or from an adjacent PCU for input of a control command. PCU of each section is programmed so as to transmit control commands received through the electric bus provided with a code word assigned to PCU to be activated. Besides PCU of each section has a switch, which enables to disconnect electric buses. By means of the second similar electric bus (the parallel bus) the input signal not provided with the code word assigned to PCU to be activated can be transmitted to PCU of the adjacent section.

EFFECT: safe, trouble-free and reliable operation of the winning machine and the powered support with insignificant expenses for maintenance.

3 cl, 3 dwg

FIELD: mining.

SUBSTANCE: lining sections are connected to an expansion tensioner (ET) conveyor consisting of power cylinders. The lining is equipped with a control system performing data collection and storage and programming continuous concordance of holding force distribution along the breakage face and/or amount of holding forces along the breakage face (total holding force) and/or advancing force distribution along the breakage face at given conveyor position. It allows determining total holding force in respect to the maximum set for it, by ET number, affecting total holding force by axial force adjustment for separate ETs, or affecting total holding force depending on the position of at least one end conveyor section.

EFFECT: minimisation of expansion tensioner number and pressure feeding them at reduced cost.

9 cl, 4 dwg

FIELD: mining.

SUBSTANCE: system includes multiple control units (CU), each positioned at the respective section and functionally conjugated thereto. The CU of each section features multichannel transceiver, whereby a CU communicates to a portable decentralised control device for controlling signal reception and measurement and condition data transmission in the simultaneous transceiving mode. Section CUs are programmed so that controlling signals received by radio are not converted into lining section functions unless the controlling signal carries a code word assigned to the addressed CU. Section CUs are preferably interconnected by two electric buses for transmission of entered data to all section CUs and feature amplifier for restoration of signals received via electric bus.

EFFECT: improved operation reliability of winning machine and powered support due to sustaining safe and fail-proof operation at low cost.

3 cl, 3 dwg

FIELD: engines and pumps, mining operations.

SUBSTANCE: system composed of hydraulic units for underground mining operations is intended for, particularly, underground working supports, actuators and/or pickups, all of them being encased and interconnected or can be connected, via a data transfer system, to the control unit. Note that every actuator is designed to make every hydraulic unit function operate and/or every pickup is set up to read out the hydraulic conditions at the point of measuring whatever quantity of the walking support. Mind that every actuator (3) and/or sensitive element (7, 8) in its casing (4; 18, 19) are wired to readout unit (20; 30), while hydraulic unit (1) for every function (2) or every point of measurement is connected to data element (12; 13) connected in the circuit to allow a readout unit with a receiver and/or transmitted module (20; 30) to effect a contactless inductive data readout therefrom and to transmit the said data to control unit (6). Data element (12; 13) represents a transponder or a transmitter incorporating a receiver coil. The control unit (6) uses this data via the data transfer system to allow an automatic single-valued identification and reprogramming.

EFFECT: faultless connections.

8 cl, 3 dwg

FIELD: mining.

SUBSTANCE: support control system to control shield support section movement in breakage face of mine contains central device of control (CDC) and set of control units (CU) each of those is located at corresponding section and functionally coupled with this section. At that CU of sections are connected with CDC and between each other with two bus bars and designed so as to facilitate a call of CU of any section from CDC or from CU of the neighbour section to control command input. Also CU of each section is programmed so as to transmit received control commands via the bus bar; the said commands, equipped with a code word assigned to the CU called at that moment, are transmitted to this particular CU for execution. Owing to the second analog bus bar (a parallel one) received signals not equipped with the code word assigned to the CU called at the moment, are transferred to CU of the neighbour section.

EFFECT: upgraded reliability of excavating machine and mechanised support due to safe and trouble free operation of their work with insignificant costs for maintenance.

2 cl, 3 dwg

FIELD: mining.

SUBSTANCE: invention relates to control system over underground face support with transport. The control system for underground walking face support consists of transporter, winning machine, plurality of panels each equipped with a block of functional control with a corresponding panel, of a facility connecting control blocks between themselves, of a central station located outside long wall face and communicating means for transmitting data between control blocks in the long wall face and the central station outside long wall face. The communicating means include at least one radio transmitting device from the side of the long wall face and one radio transmitting device from the side of the central station with receiving and transmitting modules to facilitate wireless and cable less two-directional data transmitting at the long wall face end.

EFFECT: minimisation of costs for cable laying for underground control system over face support and increase of reliability of face support control.

7 cl, 2 dwg

FIELD: mining.

SUBSTANCE: equipment consists of electric-hydraulic driven sections of lining with corresponding facility for lining control. Additionally, there is foreseen at least one doubled block of power source, which provides current for at least two means of lining control of different sections of lining independently from each other. A double-sided element of communication is installed between the power source block and at least two means of lining control; this element performs galvanic separation between the power source block and means of lining control and/or groups of means of lining control. Also the element of communication forms a galvanic separated data transmitting channel which facilitates communicating between two means of lining control and/or groups of means of lining control. Notably, double-sided element of communication is in-built into the power source block or is flange mounted directly on the case of power source block.

EFFECT: simplification of design of face equipment.

4 cl, 2 dwg

FIELD: mining.

SUBSTANCE: extraction device of coal in longwall face of underground mine working consists of the following: many sections of powered support, which are installed near each other throughout the length of longwall face between gates; plough machine; chute and conveyor located in it with possibility of movement, which are located throughout the length of longwall face between extraction machine and support sections; several deflecting devices and control device. Plough machine is provided with possibility of being moved along the line of the mining face and equipped with rock detection sensor which is provided with possibility of transmitting radio data of the detected rock to the control device of the support by means of the transmitter installed on the plough and the radio receivers installed along the longwall face. Group of adjacent support sections and sections of the chute corresponds to each deflecting device. Deflecting device is connected to control unit of one of the support sections of the appropriate group, and depending on the data of the detected rock, it provides the possibility of lifting the chute sections of the appropriate group, which is accompanied with lowering of the tools of the plough machine, and lowering of the chute sections, which is accompanied with lifting of plough machine tools. Control device includes the following: bottomhole control unit located at the end of longwall face for control of functions of support sections in relation to unloading, transportation and bracing of the support; control units of sections, each of which is put into spatial and functional compliance with the appropriate support section for performing and further transmitting the commands from bottomhole control unit; and the bus connecting mainly in series the bottomhole control unit to control units of support sections. At that, rock sensor when moving beside each support section is provided with possibility of generating the measurement signal characterising the detected rock only for several, mainly not more than two measurement points. Measurement signals received at neighbouring measurement points are subject to analysis with a view to predominance of rock or coal. Depending on analysis results, there generated is deviation signal supplied to the common deflecting device common for all measurement points, and namely to the deflection of the chute sections, which causes the lifting of plough machine tools if analysis results show the predominance of rock at the analysed measurement points, and to deflection of the chute sections, which causes the lowering of the plough machine tools if the analysis results show coal predominance at the analysed measurement points.

EFFECT: possible quick correction of the plough machine position during the coal extraction, which causes the lifting and lowering of the plough.

9 cl, 2 dwg

FIELD: mining.

SUBSTANCE: in control method of drum actuating element equipped at least with one lever of drum actuating element each electric hydraulic section of the support is equipped with its own electric hydraulic control instrument. Control commands are entered for correction of lever position of drum actuating element from control instrument of support section. And they are supplied from there to control system of drum actuating element.

EFFECT: improving control efficiency of the cut by means of drum actuating element.

8 cl

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