Development method of formation of mineral deposits and sinking-mining harvester for its implementation

 

(57) Abstract:

Development method of formation of mineral deposits and sinking-mining harvester for its implementation. The inventive excavation of minerals carry cameras layers in elevation processing layers, in descending order, with the sinking of the excavation drifts with panel openings in series with the bomb it with gradients of up to 18 degrees. Tunnel mining harvester includes chassis, and mounted on her swivel bearing with the Executive of the selective type, made in the form of two telescopically retractable handles mounted reel limited width with integrated individual drives and having the opportunity to make swinging movement together with the axes of the mounting in a plane parallel to the face. Additionally, there is a cutting bar, swinging in the plane of the longitudinal axis of the goaf and apparatus for construction of the liner. 2 S. and 3 C.p. f-crystals, 10 ill.

The invention relates to the mining industry and can be used to develop a reservoir of mineral chamber systems, the development of off-balance-sheet reserves, Tomko [1], consisting in the carrying out of development workings in the mining area, layer-by-layer excavation of minerals chamber when the development system with forward and reverse speed of the harvester, leaving mercanery pillars and transportation of minerals.

The disadvantage of this method is the inability to develop thick layers, the need for a large number of auxiliary openings, the lack of devices for installation of supports and the need for reversal of the mining combine 180oor idle stage to the length of the camera.

Also known continuous miner [2] for the implementation of the layered mineral extraction chamber when the development systems containing suspension and installed on her swivel bearing with an Executive body with a cutting drum, a table for receiving fossil.

However, this processor does not allow the reversal of the Executive body 180oso it needs the idle stages in the development of cameras, does not include devices for fast erection lining.

There is a method of reservoir development [3], adopted for the prototype, which consists in conducting drifts, contouring the Los width, equal to the maximum capture zone of the Executive body of the combine with the formation between the bands of pillars mineral overload of the rock mass in the vehicle. The method is carried out using tunnel-mining complex, including the harvester made in the form of tracked chassis with chassis with mounted on it can be rotated in the vertical plane of the Executive body, gear conveyor, the unloading device of the inclined plate, scraper conveyor, sweeper legs and cylinders, the vehicle for the reception of the rock mass [2].

The disadvantage of this method and the tunnel system is the impossibility of its use for seams much more than 4 m, and the necessity of drilling a large number of auxiliary openings and cutting (commissioning) more than two blocks to achieve sufficient performance, i.e., characterized by insufficient concentration of mining operations. In addition, the known method does not allow mining and tunneling work without additional funds for the prevention of dynamic phenomena (DUBLIN core).

The objective of the invention is to develop the Plaza and, and pokaski soils, improving the efficiency of their testing and the formation of the openings with any configuration of the roof.

This is achieved by the fact that minerals are removed in the cells in descending order with elevation (layered) development of the reservoir within the excavation area on the full capacity of the reservoir, and the excavation drifts are with panel openings sequentially in descending order with the bomb it with the angle to the 18oand settings excavation area is determined from the expression:

Pcentury account(Tamouthvk)/ (m2)

where Pcenturyacademic. - area extraction section, m2;

T - time testing of the reservoir, the day;

andmouth- sustainability of complex roof-pillar", m;

- number of working horizons;

Vk- driving velocity, m/day.

The excavation preparatory excavations in the rocks below average stability of production are fixed cassette temporary shoring.

Heading-mining processor for implementing the method comprises a chassis, and mounted on her swivel bearing with an Executive body with a cutting drum, the tables for the reception of a useful mineral, characterized in part relative to the longitudinal axis of the combine and containing drums with built-in individual actuators, the drums are installed with the possibility of rotation about the longitudinal axis of the retractable shafts of the handles and swinging movements in a vertical plane perpendicular to the longitudinal axis of the harvester, and retractable boom and tables for the reception of a useful mineral is equipped with telescopic hydraulic cylinders pivotally connected respectively with the horizontal parts of the handles and the body of the harvester.

The rotary bearing is equipped with a retractable cutting bar, swinging in the plane of the longitudinal axis of the harvester and a device for setting the cassette temporary roof support comprising a platform with rails, a trolley with telescopic handle and the carriage.

In Fig. 1 shows a direct course combine in the first layer of the camera of Fig. 2 - reverse motion of the harvester of Fig. 3 - section a-a in Fig. 1; Fig. 4 - section 5-5 of Fig. 1; Fig. 5 - mining slaughter by the Executive body; Fig. 6 - continuous miner in longitudinal section; Fig 7 is a front view; Fig. 8 is a plan; Fig. 9 - position of the Executive body and the bar when drilling and production; Fig. 10 - position bar at faster cutting.

The way to develop layers of minerals is intended for use when the chamber block p is th (horizon) 3 chambers, having an arched cross-section, Mezhdunarodnye pillars 4, panel production 5, chamber of rectangular cross-section of the second 6 and third layer 7 (of the horizon), the inclined part of the preparatory development 8 in the preparation of the second layer (horizon) 6 in the cells.

Development of layers (horizons) 3, 6, 7 in the cells and excavation drifts 1, 2 is heading-and mining universal harvester (PDCU) 9 with Overdrive rock hopper loader 10 and the vehicle 11, such as self-propelled carriages, followed by overload on the face of the transport system 12.

Heading-mining complex consists of harvester 9, the hopper loader 10 and the vehicle 11 (Fig. 1, 2). Harvester (Fig. 6, 7, 8) made in the form of tracked chassis 13 mounted on the body moving in the plane of the bearing 14 tower 15, which is the left 16 and right 17 of the handle of the Executive body, as well as a retractable bar 18 with the actuator 19. Each of the handles 16 and 17 has a retractable boom 20, consisting of a hinge (21) of the United parts. Downhole portion of the boom 22 has a mechanism of the reversal of the drums 23 (screws) 24 around the longitudinal axis of the handle and the cylinders 25, performing a swinging movement of the drums (screws) 24 Soi bar 18 is installed in the guide beams 26 and has the opportunity to stand on the bottom together with the actuator 19 through the feed drive 27, for example in the form of zivotnogo gearing. Bar 18 by a hydraulic cylinder (not shown) is able to perform a swinging movement around the axis 28 in a plane perpendicular to the plane of the soil 14 and in the direction of the longitudinal axis of the harvester.

In the machine body 9 is curved scraper conveyor 29, the drive sprocket 30 which is placed on a symmetric located in the front and rear of the harvester, tables 31 and 32, the hinge (36) fixed to the body of the harvester. Tables 31 and 32 by means of hydraulic cylinders, respectively, 33 and 34 can be moved from the lower position (under the auger 24) at the top (at the rear of the harvester).

Tower 15 is installed on the machine body in a swivel bearing (chase) 35 with the drive.

On the Shearer 9 on a support 35 on the sliding bar 18 with the actuator 19 and the guiding system (sliding partitions) 26 driven supply 27 between the handles 16 and 17 is a device for the construction of temporary and permanent lining, consisting of a platform 37 with the guide 38, which moves the carriage 39 by means of the actuator 40 with the placed telescopic handle 41 and the actuator 42 through which the handle 41 makes rocking ersat swinging movement around the axis of the mount 44 to the handle 41 by means of a system of hydraulic power cylinders 45. On the carriage 43 is provided the device for placement of devices for anchoring of roof rocks (type AK) and the fastening openings of the cassette support 46 for permanent mounting, available for the harvester and 47 for temporarily fastening that sits just above the harvester.

How to develop a powerful, including dangerous dynamic (dynamic) phenomena and plastic, unstable layered roofs, and pokaski soils, layers of minerals is implemented using tunnel-mining complex, including the harvester (PDCU) 9 retractable rocking bar 18, the hopper loader 10, the vehicle 11.

The parameters of the mining area are defined by the formula, allowing you to choose the rational and safe management of wastewater treatment works:

Pcentury account(Tamouthvk)/ (m2)

where Pcenturyacademic- area extraction section, m2;

T - time testing of the reservoir, day;

andmouth- sustainability of complex roof-pillar", m;

- number of working horizons;

Vk- driving velocity, m/day.

Ventilation 2 and conveyor 1 drifts for cutting block (Fig. 1) and neg what's on DUBLIN core seams before mining slaughter drum (auger) 24 is ahead of the cut bar 18, this reduces the stress state of the array, while conducted in the following order. Harvester 9 is positioned at the center of generation, most pushed to the bottom, screws 24 arrows 20 by hydraulic cylinders 25 are held in a horizontal position (position 1 in Fig. 9), and the arrows 20 are maximally pushed position relative to the handles 16 and 17 so that the augers 24 rest against the shaft. Through feed drive bar 27 18 in the guide beams 26 extend to the bottom, with the cutting chain is driven by the actuator 19. Console advanced bar 18, buried to its full length (position I in Fig. 10), through hydrocylinder begins to make a circular cut, moving relative to the hinge 28, lifting up until the cutting height exceeds the height of the tunnel (the position II of Fig. 10). Then, the bar 18 is lowered into operating mode to the position when it begins to break down soil (position III of Fig. 10), then bar 18 is translated in a horizontal position and is moved outside (transport) position of the actuator 27.

The rock excavation (coal) in the mine are on different circuits, depending on the type of cross-section generation.

The excavation excavations (cameras) for useful operations is icalneu plane, the cylinders telescopic extension shafts 20, and the breaking of pillars left between the drums (augers), produced by the rotation of the tower 15 through the mechanism of the turntable 35.

The excavation workings on rocks with f < 4, cross-section which differs from a trapezoidal or rectangular, you must perform an additional movement by the Executive body in the breaking zones "L, K, P" (Fig. 5). For blasting rock in the right part of the zone "K" (Fig. 5) drums (screws) 24 the boom 20 of the handle 17 with the help of telescopic cylinders steps removed from contact with the bottom, drums (screws) 24 rotate around the longitudinal axis of the boom 20 by mechanism 23, and then mined area "To" using hydraulic cylinders telescopic extension cylinder swing of the boom 25 and the mechanism of the turntable 35. At this time, the boom 20 of the handle 18 is retracted into the interior of the latter and is omitted. The left part of the zone "K" (Fig. 5) worked by the handle 16. Zone "P" (Fig. 5) is fulfilled right handle 17 when drawn the arrow 20 in the left handle 16, the downhole portion 22 which is in the horizontal position.

Smitten rock falls onto the receiving table 31 (omitted) and is transported by the conveyor 29 in the rear casopitant in the vehicle 11.

Mount excavations conducted by using the device for the construction of temporary and permanent cassette lining. The erection of temporary piles is as follows: the carriage 39 along the guide rails 38 of the platform 37 is moved in the direction of the receiving table 32 located in the upper position, the telescopic handle 41 is in a horizontal position and extended to the required length in the direction of the receiving table 32. The carriage 43 is placed in the top section arch support and the carriage 39 along the guide rails 38 of the platform 37 is moved in the direction of the receiving table 31 located in the lower position, the telescopic handle 41 is rotated around the axis of attachment to the carriage 39 in the same direction, the carriage 43 with the upper shield section is pressed to the roof framing at the drums (augers) 24 and is held in this position until you have mounted the side of the rack supports. Constant cassette support is likewise built in processor 9 . Bolting is being built with devices for anchoring the support, mounted on the carriage 43 by means of a special device.

Mining works in layers (horizons) 3 (6, 7) cameras are similar to prohodcheskie roof.

During mining operations in Prosecco in the cells of the layer (horizon) (Fig. 1, 2), harvester 9 has no idle race. After leaving the roadway 2 drums (screws) 24 cylinders 25 are in the position IV (Fig. 9), tower 15 harvester 9 turns 180o, the receiving table 31 from the lower position is translated at the top, and the table 32 from top to bottom, the screws 24 are translated into position 1, 11 (Fig. 9), the notch and the production in Prosecco.

After the end of mining in the development of cells of the first layer (horizon) 3 cameras all over the area, the harvester 9 flows through the passage 1(2) of panel production 5 and produces the driving of the inclined part 8 generation 1(2) for the preparation of block and testing the cameras of the second layer 6 (rectangular cross section) (Fig. 3, 4). This harvester 9 bomb it provides soil development 8 using drums (screws) 24, is lowered in position 11 (Fig. 9) at extremely extended shafts 20 relative to the handles 16, 17. Development (bomb it) soil 14 (Fig. 1, 4, 9, 10) is made by the harvester 9 sequential increase in the depth of Podravka on the distance from generation 5 to block so that when the approach to the unit (Fig. 4) the height of the layer 6 of the chamber should be within 3 - 4 m Angle zaglublennosti 12. Further, the harvester 9 performs the refinement layer (horizon) 6 in all the cells within the excavation area. Similarly, the preparation of the next horizon excavation site to the production and the actual production at depth in the layer (a horizon) 7 chambers excavation area and the lower layers (horizons) when excavation of the reservoir at full capacity.

When conducting mining operations in the workings with pokaski soils their bomb it is harvester 9 when installing screws in position 11 (Fig. 9).

Features of the invention allow to increase the efficiency of mining thick layers by enhancing the concentration of mining operations, as well as to ensure high efficiency and safety workings on formation deposits in reservoirs and dangerous dynamic phenomena (shocks, emissions), in the presence of unstable layered, multi-plate rocks in the roof and luchshih soils through the use of tunnel-mining combine (PDCU) with universal Executive body, actively influencing the geomechanical parameters of the bottom of the array and forming production with the required configuration sections.

1. The method of mining of bedded deposits of useful escapelocalurl chamber when the development system with forward and reverse speed of the harvester, leaving mercanery pillars, mount goaf and transportation of minerals, characterized in that the minerals are removed in the cells in descending order in elevation the development of the reservoir within the excavation area on the full capacity of the reservoir, and the excavation drifts are with panel openings sequentially in descending order with the bomb it with the angle to the 18o.

2. The method according to p. 1, characterized in that the parameters of the extraction area is determined from the expression

Pin.yh(Tywithtvto)/n,

where Pin.yhthe area of the excavation area, m2;

T the time of a failover layer, the day;

andmouththe indicator of stability of the complex roof pillar, m;

n the number of working horizons;

vtothe ROP, m/day.

3. The method according to p. 1, characterized in that the excavation preparatory excavations in the rocks below average stability of production are fixed cassette temporary shoring.

4. Heading-mining processor for implementing the method that contains the chassis and installed on her swivel bearing with the Executive organ grinder barabolya the handles with retractable shafts, arranged symmetrically relative to the longitudinal axis of the combine and containing drums with built-in individual actuators, and the drums are installed with the possibility of rotation about the longitudinal axis of the retractable shafts of the handles and swinging movements in a vertical plane perpendicular to the longitudinal axis of the harvester, and retractable boom and tables for the reception of a useful mineral is equipped with telescopic hydraulic cylinders pivotally connected respectively with the horizontal parts of the handles and the body of the harvester.

5. Harvester under item 4, characterized in that the rotary bearing is equipped with a retractable cutting bar, swinging in the plane of the longitudinal axis of the harvester, and a device for setting the cassette temporary roof support comprising a platform with rails, a trolley with telescopic handle and the carriage.

 

Same patents:
The invention relates to the mining industry and can be used when mining underground deposits

The invention relates to the mining industry and can be used in mining steeply dipping minerals, in particular in the extraction of diamonds from kimberlite pipes

The invention relates to the mining industry and can be used in the development of underground ore bodies storey-chamber systems

The invention relates to mining and can find application in stoping of coal seams using the energy of rock pressure

The invention relates to underground mining of mineral deposits

The invention relates to the field of mining industry and can be used for coal mining, diamonds and other minerals

The invention relates to the mining industry and can be used for developing powerful steep seams tab cast hardening mixtures goaf

The invention relates to mining and can be used effectively for the development of diamond deposits, steeply dipping coal seams lying in difficult mining and geological conditions

The invention relates to a tunnel-mining machine that contains the tracked chassis with the drive connected to the tracked chassis and arrow with cross-cutting head located ahead of the loading device loading skirt and adjacent to the loading device, the discharge device

The invention relates to the rock bodies of mining and road-building machines for different purposes

Mountain harvester // 2005177

Cleaning combine // 2248445

FIELD: mining industry.

SUBSTANCE: device has body with ski and electric engine with hydraulic pump on it, actuating hydraulic engine for moving combine along face through cog and hydraulic engine for raising rotating reducer with screw, drive of which is integrated in rotating reducer. Combine is provided with carriage with shaft and stopping devices. Carriage is mounted with possible longitudinal displacement relatively to combine body via chain contour with drive from sprocket. On carriage shaft additional sprocket is freely mounted, engaged with chain contour and cam sleeve, and braking device for fixing rotating reducer, made of two shoulders, interconnected jointly.

EFFECT: higher efficiency, simplified construction.

4 dwg

FIELD: mining.

SUBSTANCE: device for processing of materials with milling comprises a drum holder, a tool drum, where a group of tool shafts is installed with the possibility of being put into rotary motion. At the ends protruding from the tool drum there are processing tools installed. At least two of the tool shafts are made with the possibility of being put in motion by one common drive of transmission. Axes of tool shafts are arranged across the drum axis. Tool shafts are evenly distributed in the tool drum along its perimetre. The invention also relates to the method of materials milling and application of such device or method.

EFFECT: operational reliability of the device, high efficiency of removing material of high strength.

35 cl, 12 dwg

FIELD: mining.

SUBSTANCE: method involves separate extraction of coal and rocks of interlayer with combined cutter-loader with cutting actuating element of selective action. Extraction of coal benches and rock interlayers is performed in the extracted strip per one pass of cutter-loader in ascending order - from soil to roof. Width of the extracted strip is accepted equal to length of two-sided loading element of cutter-loader. Separation of flows of broken coal and rocks of interlayer is performed in the mining face by means of two-sided loading element with shovelling blades and belt reloader equipped with diagonal plough. Separate transportation of broken coal and rocks of interlayer in mining face is performed with cantilever drag conveyor. Combined cutter-loader includes the housing installed on frame with blades; two cutting actuating elements of selective action; two-sided loading element made in the form of chute with shoveling blades installed symmetrically on both sides from longitudinal axis of chute, and belt reloader equipped with diagonal plough.

EFFECT: increasing efficiency of underground development of coal beds owing to selective extraction of coal and interlayers of more precious mineral resources and their separate transportation to the surface via transport chains of the mine.

2 cl, 3 dwg

FIELD: mining.

SUBSTANCE: proposed plant comprises machine to drill pilot well arranged in drilling room, rock cutting tool, screw to displace sludge, winch with rope and mounting trolley. Besides, it comprises equipment to reception and transfer of sludge. Note here that said winch is arranged at said mounting trolley and located in transport-sorting face. Note also that screw and cable are secured to expander on the side opposite the pilot well mouth.

EFFECT: expanded operating performances and higher efficiency.

5 dwg

Tunnelling combine // 2494253

FIELD: mining.

SUBSTANCE: tunnelling combine is proposed, comprising a cutting element, hydromotors of a movement mechanism, controlled by a hydraulic distributor, and outriggers kinematically connected to hydraulic cylinders equipped with hydraulic locks and controlled by a separate hydraulic distributor. Besides, the tunnelling combine additionally comprises an "or" valve, one inlet of which is connected to one of manifolds of hydromotors of the movement mechanism, and the other one is connected with their second manifold, and a check valve, the under-valve cavity of which is connected to the outlet of the "or" valve, and the above-valve cavity is connected via the hydraulic locks of hydraulic cylinders with their stem cavities. Besides, in the neutral position of the separate hydraulic distributor of hydraulic cylinders control, their piston cavities are connected with a drain manifold via hydraulic locks.

EFFECT: expansion of capabilities of tunnelling combine control and higher safety.

2 dwg

Up!