Development method of thick gently sloping formation in large slabs. RU patent 2520228.
 Method to develop edge ore bodies with unstable ores / 2515285Invention relates to mining industry and may be used in development of thick edge ore bodies with unstable and precious ores, for instance, kimberlite pipes, by the underground method. The method includes formation of man-made massif with tunnelling and filling of stopes at the cut and undercut layer, descending extraction of reserves under the man-made massif and filling of the mined space. Under the man-made massif they form a transition layer-sublevel by alternate tunnelling of the stopes of the first phase, with height equal to the height of the layer, and stopes of the second phase, the height of which is equal to the height of the layer-sublevel, at the same time the stopes of the first phase is given the shape of the tilted trapezoid in the vertical cross section, and stopes of the second phase - the irregular hexagon, besides, the width of the upper bases of figures of these stopes and width of stopes of the above (undercut) layer are accepted with equal value. Reserves of the deposit below the transition layer-sublevel are mined by chambers in staggered order with a shift to a sublevel. Chambers in the cross section are given the shape of the hexahedron extended along the vertical line. The upper part of the chambers is formed in the form of a trapezoid with size of half of chamber height, the contours of the upper base of which match the contours of the base of the filled stopes of the first phase in the transition layer - sublevel, and contours of the lateral upper sides - with contours of the lower sides of the filled adjacent stopes of the second phase. The lower part of the chamber with the size of half of its height is given the shape of the tilted trapezoid in the vertical cross section. |
 Method for underground block leaching of useful minerals / 2506423Invention refers to mining, and namely to production of useful minerals by an underground block leaching method. The underground block leaching method of useful minerals involves driving at the block bottom of openings of drain horizon for collection of productive solutions, crushing and shrinkage of ore so that a drain horizon of a safety pillar is left above openings, drilling of upward pumping wells from openings of drain horizon through the safety pillar, supply through them of a leaching solution to shrunken ore, collection of productive solutions in openings of drain horizon. Upward pumping wells from openings of drain horizon through the safety pillar are drilled to lower boundary of shrunken ore, and the leaching solution mixed with air is supplied to shrunken ore via upward pumping wells in a hydrodynamic cavitation mode. |
 Mineral deposit development method / 2501949Transportation of mineral deposit crushed with a combine is performed by means of a self-propelled wagon to a self-moving snaking conveyer, the loading part of which is located in a chamber, and the unloading part is located above an ore-passing well, via which the mineral deposit is transported and unloaded to the ore-passing well; with that, movement of the conveyor to the next well is performed when transportation length of mineral deposit with the self-propelled wagon in the chamber achieves maximum length determined as per mathematical expression. Limit length of the chamber, at which continuous operation of the combine is provided by means of a hopper-loading elevator, the self-propelled wagon and the self-moving snaking conveyor, is calculated as per the mathematical expression. |
 Method to prepare ore bodies in place of bedding to leaching of useful components / 2495238Method to prepare ore bodies to leaching of useful components in place of bedding includes installation of charges into well rings (11) in the central part of the ore body, explosion of the specified well rings and subsequent injection of a process solution into the central part of the ore body via perforation channels with the branching cracks along periphery of channels, formed by the upper part of the ore body with directed blasting Charges are installed with formation of a water circular gap between an explosive charge, bottom and walls of the well, after formation of a circular gap the well is filled with water or plugged. |
 Method to prepare water-logged gas saturated massif of rocks to mining by underground method / 2487997For realisation of the method, drainage-degassing wells are drilled in zones of higher cracking outside the limits of the prepared mine. Wells are drilled in the bottom-up direction in the close proximity to the profile of the prepared mine. Pumping of gas saturated drainage brines is carried out until the level of the depression curve is set below the horizon of breaking works, and it is maintained at this level for the entire period of mining. Besides, in process of wells drilling the minimum permissible distance to the profile of the prepared mine is accepted as 0.035 m per each running metre of the well. |
 Method and device for production of material in underground conditions / 2482275Method includes the following stages. Installation of a structure inside or tightly with an underground mine, so that the structure provides for reactive forces when pushing a cutting head in direction of the material by means of a series of rigid materials fixed on the structure, which i arranged so that series of rigid elements may be fixed to it simultaneously at least in two directions, so that parts of tunnel branches could be formed in at least two appropriate directions, of the underground mine designed for transportation of people, mechanisms and extracted material. Formation of multiple parts of tunnel branches entering the material. Formation of the first part of the tunnel branch with the help of a cutting head and a series of rigid elements in the first direction, and afterwards formation of the second part of the tunnel branch in the second direction. During formation of the second part of the tunnel branch, movement of rigid elements from the part of the first tunnel into the part of the second tunnel branch for extension of the series of rigid elements in the part of the second tunnel branch. |
 Development method of stratified deposits using chamber system / 2479720Method involves separation of panels into individually ventilated blocks, in which second working and first working is performed. First working is ahead of second working at least by one block; at that, second working in adjacent blocks is performed simultaneously. Air supply and ventilation mine workings are routed along the panel boundaries. Each block of the panel is outlined on three sides with first block working. Panel and block mine workings are located symmetrically relative to the panel axis and connected to each other by means of cross passages made at the beginning of each of the blocks. Local ventilation plants are located in T-pieces arranged on the panel axis and on its boundaries at connections to main entries. Return ventilation air jet is removed from the T-piece to main entries through a crossing. The panel is developed in the direct order by means of subsequent development of blocks, and reserves of each of the blocks are developed in reverse order. Delivery of mined rock from the blocks is performed to two unloading points located at the connections to main entries. |
 Method to control hard roof under conditions of cryolithic zone / 2478786Method includes development of reserves from a border of an extraction column, drilling from surface of wells into the extraction column and primary setting of the roof. Wells are drilled to the rated line of the roof arch in one row in parallel to a stoping face in the middle part of the limit span of the main roof slab. Eutectic-hard-freezing solutions are filled into wells for the height of 1.5-2 m, rated time is maintained, which is required for melting of ice in cracks of roof rocks and formation of germinal slots, afterwards the wells are filled to the surface with the same solutions, and a hydraulic rupture is carried out in a rock massif. |
 Method for shooting of ores and rocks on underground mining works / 2476819Method for shooting of ores and rocks on underground mining works includes drilling-off of a broken volume by opposite wells or blast holes, drilled from upper and lower drilling mines, their charging and exploding. An initiating charge in each well or blast hole is arranged at the distance La=2.25•dw, m from the bottom of the well or the blast hole, where: dw - diameter of a well or a blast hole, m, and distance between ends of opposite wells or blast holes determining thickness of a broken layer, is accepted as equal to L=2•Rr.e.+0.9•Do, m, where L - distance between ends of opposite wells or blast holes, drilled from upper and lower drilling mines, m; Rr.e. - radius of a damage zone from end action of a charge, m; Do - diameter of a bulk piece, accepted for the applied technology, m. |
 Method for underground mining of ore deposits in cryolite zone / 2471070In the period of negative temperatures of ambient air from dehydrated dressing tails briquettes are pressed of ball shape with two diameters related with the following ratio: and volume of a filling material pressed in the form of briquettes of smaller diameter is determined according to the following formula: where Vvol - total volume of solid wastes supplied for briquetting. All prepared briquettes are frozen on the surface, mixed in hoppers with vibrators, transported and placed in a mined space of cleaning units. The ratio of this space filling with briquettes with identical diameter always makes 0.523. If for filling of the mined space a set of briquettes is used in two different diameters, then the coefficient of filling of the mined space will increase to the value of 0.597. |
 Underground extraction method / 2246617Method includes use of screw-drilling machine for driving of several first ventilation shafts in ore body and driving several second shafts, while second and each second shaft crosses, at least, one matching first shaft, forming first support walls, supporting ceiling. First supporting ceilings consist of ore body zones between neighboring second shafts, each first support wall has portion of at least one first shaft, passing horizontally through it. Horizontal channels are formed, each of which is placed transversely to matching second shaft between appropriate portions of first shaft, formed in adjacent support walls, for forming of group of continuous ventilation shafts. Second shafts are filled for forming second supporting walls, supporting well ceiling, and first supporting walls are extracted. First ventilation shafts can be made parallel to each other. Second shafts may be directed perpendicularly relatively to first ventilation shafts. In ore body air-outlet and air-inlet ventilation mines can be formed, placed at distance from each other along horizontal line, while first or each first ventilation shaft passes through portion of ore body between air-inlet and air-outlet ventilation mines. Driving of second or each second shaft can be performed by cutting machine, or by drilling or explosive mining. |
 Method for controlling hard-destructible ceiling / 2246618Method includes partial filling of extracted space of side and central mains by filling stripes from lava extracting shafts. At center of semi-lava on the side of massive, wherein next extractive column will be cut, filling shaft is additionally driven, wherefrom full filling of space between central fill stripe and fill stripe on the side of massive is performed. Preparation of next extraction column is performed under protection of erected fill stripes. |
 Method for preparation of mineral resources deposits to reversed extraction order / 2247242Method includes cutting well field portions by driving bed and field mines. At mine fields to be prepared with weak rock stability driving of several field preparatory mines is performed at portion of field with width determined from formula. Bed preparation mines on same portion are driven alter, with displacement of cleaning operations from these may be driven in portions, at which their stability is provided for technological time period with inter-drift blocks of given rigidity. |
 Method for extraction of mineral resources deposits / 2249696Method includes extraction of mineral resource by underground mine method in liquid environment, under protection of water-resistant rock massif. Full flooding of auxiliary extracting and preparatory mines is performed, which provide for start of wiping operations, with working liquid, neutral relatively to mineral resource and enveloping rocks and being under pressure, matching value of pressure at depth of mine. Process of removal of separated rock beyond underground flooded space is synchronized with replenishment of working liquid volume in this space. Working liquid pressure can be formed by effecting it with force liquid, which is placed either in mine shaft, hydraulically connected to lower flooded auxiliary extracting mine, or in mine shaft and force column, placed on earth surface, above mine shaft, and hydraulically connected thereto. Required height of force liquid column is determined from mathematical expressions. After mineral resource extraction is finished within mine field, flooded extracted space is used for placement of toxic and non-toxic wastes of industries or strategic objects, while process of transfer of wastes or strategic objects into liquid environment is performed synchronously with removal of working liquid beyond flooded space in volume, equal to volume of transferred wastes or strategic objects. |
 Method for extraction of steep-dropping and slanting deposits of lowe and average massiveness / 2254467Method includes separating resources of all levels on blocks, in form of upwardly elongated hexahedrons. Blocks on adjacent levels are positioned in staggered order with displacement of some of them relatively to others for half of blocks width. Resources of each block within limits of hexahedron are divided on two portions: hexagonal chamber inside the block and block itself of same hexagonal shape on all six sides of chamber. Preparation and cutting of chamber resources is realized by driving field level drifts and mines, intermediate sub-level drifts and mines, and also level and sub-level orts and drifts, driven through mineral resource, from which resources of chambers and blocks are drilled and exploded. Extraction and outlet of mineral resource is performed in three rows - first chamber resources, than inter-chamber blocks under protection of ceiling blocks, after that ceiling blocks deposits. Outlet of resources from chambers and blocks is performed trough ends of level orts and mines, an also through ends of intermediate sub-level mines. |
 Method for extraction of inter-panel support blocks / 2254468Method includes determining width of edge zones of block, subjected to influence from support pressure, then preparatory mines are driven along block at limits of these zones and permanent rigid supports are erected therein. After that portion of block from preparatory mines to block center is extracted. |
 Method for extraction of thin and extremely thin steep-falling and slanting deposits / 2255221Method includes dividing a level on hexahedral sections of upwardly elongated shape and is prepared by driving of field backup drift. From drift below each section shafts are driven, from which along mineral resource ascending shafts are drilled. For drilling chambers deposits by wells, sub-level drift is driven along mineral resource, access to which is provided by driving field sub-level drift and shafts. Outlet of extracted rock is performed through ends of shafts. After letting out rock from all sections ceiling beam is brought down and also let out through ends of shafts. |
 Method for extracting thin and extremely thin steep-falling and slanted deposits / 2255222Method includes separation of a level on hexahedral sections of upwardly elongated shape and is prepared by driving of field backup drift. From the drift shafts are driven below each section, from which along mineral resource ascending shafts are drilled, meant for drilling from them by horizontal or slanting wells and extracting sections resources. Outlet of extracted rock mass is performed through ends of shafts. After outlet of rock mass from all sections ceiling beam is brought down and let out also through ends of shafts. |
 Method for mineral preparation along with releasing thereof from under-roof layer / 2269002Method involves advancing breakage face in under-roof layer; drilling bores in the under-roof layer and injecting weakening reagent to separate zones through the bores; drilling blind drift in front of the breakage face, wherein the blind drift has length of not less than breakage face length; drilling bores for following weakening reagent injection from the blind bore; additionally boring intermediate bores between above bores for following gas exhausting; performing under-roof layer development so that non-developed bank is left directly above breakage face support; performing stepwise weakening reagent injection into corresponding bores and evacuating gas from intermediate bores; leaving bores filled with weakening reagent for 1-2 days and supplying the weakening reagent into intermediate bores. |
 Underground mining method / 2269003Method involves cutting mineral by hydrocutting machines and headers from face massif in rectangular blocks; putting on metal cases on the blocks to facilitate loading-and-unloading operations and transportation; loading the cut blocks on hauling truck along side previously opened from breakage face side, wherein the truck position is fixed by spacing apart hydraulic post permanently connected to the hauling truck; moving loaded hauling trucks inside breakage face by hauling tracks along channel, V-shaped guiders or guiding rails with the use of haulage cargo winches arranged in berms near conveying tunnels or with the use of independent drives, wherein the conveyance is carried out to conveying and venting tunnels abutting the breakage face; loading mineral blocks from hauling trucks onto wheeled transport platforms without block turning for following transportation. Distance between rail tracks is equal to rail track width to transport blocks on paired wheeled platforms in which locomotive moves along medium track. Working area face is strengthened by individual hydraulic posts and metal hydraulic jacks and metal roof bars or by mechanized face support. The face support has fastening sections including above hydraulic jacks and roof bars, as well as wheel guiding means sections and hydraulic movers with control panel arranged on each fastening section pair. The roof is controlled by partial filling the excavated space with mineral blocks. Distance between neighboring mineral units arranged on one paired wheeled platform and on adjacent platforms may be identical and equal to distance between guiders in breakage heading. Mineral blocks are cut in several rows, wherein depth of slot at seam ground and roof is two times as thickness of mineral blocks to be cut. |
FIELD: mining.
SUBSTANCE: method involves formation of lower slashing of formation by means of a plough unit with movement into it of a hauling conveyor, cutting in bottom-hole massif of a rear vertical slot and a slot that is upper along the boundary with the roof, which are longitudinal throughout the face length, lowering of the massif onto the conveyor, splitting of a mineral into slabs, output of the mineral from the face in slabs, their lowing into trolleys and locomotive haulage to a bulk material crushing chamber. In the massif settled down on the conveyor there cutout are inclined transverse slots splitting the massif into inclined layers that are then transferred to horizontal position for splitting of the mineral into slabs. Cutout of vertical transverse slots is performed using a motor-driven multi-jib machine.
EFFECT: high efficiency of a mining face, maximum extraction of mineral deposits from the formation being developed, extraction of methane from the produced mineral, safety of second working as per gas factor and sanitary-hygienic conditions of underground production as to dust.
2 cl, 2 dwg
The invention relates to mining in the development of thick and flat seams. When developing powerful gentle fossil layers into one layer leads to significant losses of minerals [1], since it fully remove existing methods cannot. Most often, the upper one is of fossil either not removed and goes into sabot or extracted with great losses, if we apply the technology of production of fossil from the roof strata on the second pipeline with Zagrebnoy side of the lava.
If fossil prone to spontaneous combustion, remaining in the developed space fossil ignites spontaneously, leading to the underground fires and entering the atmosphere mine carbon monoxide. According to the rules of safety of mountain works in this case should stop until they are extinguished the fires. An example of this is the situation in the mines to them. Lenin, "Olzherasskaja-New", "Sibirginskij" coal company "southern Kuzbas", which developed sloping coal layers capacity of 7.5 to 10 m with coal, prone to spontaneous combustion. Due to the cessation of mining operations at occurrence of underground fires company is a big loss for a long time have dismissed a large number of people. Up to this time there is no effective and safe technology of extraction of fossil upon its occurrence thick flat layers.
In this application for the invention is offered the way of development of fossil thick flat seam with excavation and transportation of its largest blocks locomotive transport to the crushing chamber. The closest to the application is a patent for the invention " the Method of Professor Kaimana underground mining of fossil large blocks" (RF patent №2459078 C1 IS 41/16 2006.01). The fossil is large blocks with outstripping the main killing by creating lower Podravka formation along the entire length of a lava plough unit. Dredging of coal largest blocks is carried out from the top of the reservoir by cutting longitudinal cracks: rear vertical and upper border of the reservoir rock cover the entire length of the lava. Simultaneously, at the bottom of the lava on the border with haulage drifts are cutting transverse vertical cracks in already cut bottom array fossil. The cross-cutting gaps are gidroliznyi jets of water high pressure directly on the plate conveyor. Carved blocks conveyor move to the loader, and then one comes to the loader, which is loaded into a truck. After the boot blocks the whole last part goes into the crushing chamber for processing blocks in rassypnoi mass.
The technology, described in the patent, taken as a prototype, is difficult to apply when designing thick flat layers of minerals. When the coal seam 111 capacity of 10 m (mine to them. Lenin company "southern Kuzbas") after the lower Podravka with a maximum height of 2 m still the height of the cut bottom of the array remains very large, equal to 8 meters Height cut from it blocks will also be equal to 8 m Such blocks cannot be transported, since the height of haulage drift of less than 4 m, and also for the transportation of such blocks are no vehicles and equipment for cargo handling works.
The purpose of the invention consists in the creation of technology of extraction of fossil thick flat layers, providing:
- high performance stope;
- observance of norms of maximum permissible concentration according to the safety rules with accompanying extraction of methane;
- 100%extraction of fossil its production of non leaving it in the developed space, causing an underground fire.
According to submitted application development method fossil lying thick flat layers is concurrent the following technological processes:
- ahead of the main slaughter conducting lower Podravka reservoir plough unit as part plow and scraper conveyor;
- the lower bracket Podravka plow mechanized KREP;
- electric cutting machine along the entire length of a lava rear vertical and upper border with rock roof seam longitudinal cracks;
- cutting in settled on becoming lamellar conveyor bottom array inclined cross cracks third electric machine, moving along the sloped ramp;
- moving cut into the bottom array inclined fossil layer in horizontal position on the plate material handler;
- cutting received in horizontal position inclined layer of fossil into separate blocks by cutting transverse vertical slots novobarovo Pereguda machine;
- the work of the plate material handler to move cut blocks of fossil onto the discharge conveyor, located next to him in one line from haulage drift;
- the work of unloading material handler on the movement of which it was composed of blocks of fossil sequentially one per truck;
- the work of the truck loading on one of blocks of fossil in specvagone and advancing stock for replacement under loading point lava loaded specvagone on empty;
- Laden trains of specvagone with blocks of fossil on haulage drift and bypass mining to the point of unloading the slope into the crushing chamber and the movement of empty trains back;
- the shifting of sections mechanized krepi after the movement electric machine cutting the top slot after settling bottom of the array on the conveyor lava, fastening exposed roof by spreading out on the roof of nozzles above the ceiling of shields.
After the issuance of the lava of the total volume of fossil large blocks is made front, the shifting of lamellar conveyor and both cranes with all electric cars, trucks, racks and channel guides, on which they move. Together with them also move to cable both brummelen by cutting longitudinal cracks and loader. Front shifting is done by shifting the entire Foundation, where is all of this equipment in a lava and on adjacent berms. The advance is made by simultaneous extension rods of hydroproduction of shields on all length of a lava.
The invention is illustrated by drawings, each of which shows the following:
Fig 1. The location of the equipment in a clearing face, a cross-section of lava; 1 - space lower Podravka; 2 - Struga; 3 - strugovogo the mechanized KREP; 4 - plate conveyor lava; 5 - cut bottom array of fossil; 6 - Vrubelya cutting back vertical slits; 7 - channel guides Vrubelya cutting back slit; 8 - cutting bar Vrubelya cutting back cracks; 9 - cutting part and electric Vrubelya cutting the top of the slit; 10 - rear vertical slit; 11 - inlet and electric Vrubelya cutting the top of the slit; 12 - cutting bar Vrubelya upper slit; 13 - top slot on the border of the layer with rock roof; 14 - channel guides trestle for cutting through the upper slit; 15 - rack for Vrubelya upper slit; 16 - guide for moving racks of Vrubelya upper slit.
2. Cutting cut bottom of the array fossil into blocks, cut along the length of a lava; 4 - plate conveyor; 5 - cut bottom the array; 17 - electric machine-cutting oblique transverse cracks; 18 - cut obliquely layer of fossil; 19 - circular traction device for moving electric machines along the sloped ramp; 20 - mobile sloped ramp for cutting of inclined cracks; 21 - plate stacker for cut blocks of fossil; 22 - megobroba machine; 23 - cutting bars novobarovo car; 24 - cut blocks of fossil; 25 - handling crane; 26 - blocks fossil coming from a lava on loading.
The fossil large blocks enables you to retrieve it from the mined seam in the amount of 100%, leaving nothing in the developed space, which is very important to prevent underground fires due to spontaneous combustion of fossil remaining in the developed space.
The technology development thick flat seam large blocks consists in cutting the entire bottom of the array fossil produced in one process cycle and simultaneous cutting it into separate blocks from haulage drift and moving into the cutting area is not yet cut-cut out part of the bottom of the array. Of lava are issued at the loading blocks fossil ready for transportation. Blocks of fossil are transported by trains loaded specvagone on haulage drift and bypass generation battery electric locomotive type ARP to the crushing chamber outside the movement fresh air coming for ventilation of sewage treatment works. In the crushing chamber blocks fossil processed in rassypnoi mass, which mine transport goes to the trunk and thrown to the surface. If fossil coal or Slana containing combustible gas methane, when crushing units in Maldarasanu mass in a large number of outstanding fuel gas. The crushing chamber is isolated location, in which the surface of the drilled well equipped with suction pipe for fuel gas. If gas-bearing fossil 25 m3/t, which is typical for sverhkategorijnoj mines of Kuzbas, extraction of combustible gas makes up a quarter and more than a billion cubic meters per year.
The fossil large blocks of thick flat seam is love 150 m in length with education on both sides of the berm width up to 5 m and from haulage drift niche of a width of not more than 1-1,5 m and height for all thickness of a layer. At the bottom of the reservoir operation strogogo slaughter constructed bottom bomb it ahead of the main face. Height Podravka is taken from the condition of preserving bottom of the coal massif with its landing on the plate conveyor, but not less than 1.2 m from the soil reservoir. Mount Podravka is plow mechanized KREP.
At the beginning of the technological cycle of production after shifting plow lining along the length of a lava in the added space of the lower Podravka hydropericardium support units of the main face slid plate conveyor 4 (figure 1) and both material handler 21 and 25 (2), placed him in one line and adjacent side haulage distance. Together with them in the lower bomb it pushed all Vrubelya working with downhole and dammed parties face conveyor with their channel guide 7 and 14 (Fig. 1) and moving them trolleys and racks and cable-laying machines and fork-lift truck. In the original position before the loop begins cutting parts of the first two brummelen-cutting longitudinal cracks must be in the niche. While cutting bar Vrubelya cutting back vertical slits should be transferred from the original transport position in vertical working position 8 (1) for cutting through the cracks along the whole thickness of a seam. Similarly cutting bar Vrubelya 9-11 still in NIS, should take a working position 12 in the boundary layer with rock roof. The shifting front is simultaneously along the whole length of the lava extension rods of hydroproduction all sektsijah mechanized krepi main slaughter. Combined with the shifting of idle moving brummelen from the previous cycle and bringing cutting bars from the transport position.
After the end of the belt conveyor line starts working stroke of Vrubelya 6 (1) cutting back vertical slit 10, and followed her with a delay of 5-10 m starts working stroke of Vrubelya 9-11 by cutting the top of the slit 13 on the border with layer top. Electric machines 6 and 11 are moved on trucks on channel guides, respectively 7 and 14. Mechanization shifting is supported by a pickup parts of brummelen with gearing with racks mounted on the sides of the plate of the pipeline on both sides. Feed speed electric machines of 2.81 m/min according to the technical characteristics of electric machines "Ural-33", produced Kopeysk the plant. The cutting part 9 has its own electric drive. Increasing the load on the electric Vrubelya 6 due to the increased length of the cutting bar to 8.5 m in comparison with 2,2 m according to technical characteristics offset by a reduction in the thickness of cutting through the cracks from 140 mm to 40 mm Repack power cables when driving both brummelen produced their own handlers.
Following the passage of Vrubelya 9-cutting upper slit the bottom part of the array of fossil remaining behind and devoid of all the supports, is deposited on the plate conveyor, forming on a free space. In settled on plate conveyor cut bottom array 5 (2) of fossil immediately starts cutting inclined lateral slits. Cutting is rubbishing 17, moving on an inclined plane flyover 20 top to bottom. When driving down a generated from operation of the cutter bar is angled crack Vrubelya draws a thin metal sheet with a width 2,8 m (full-width cut array of fossil). While drilling of inclined cracks force feeding creates circular traction device 19, so Vrubelya 17 consists only of a cutting part and maintains the work of the motor. After the cutting of inclined cracks on the entire length inclined racks 20 metal sheet shall overlap the whole square cut slanted slits, and the lower part is cut out inclined layer of 18, which it is based on a change-over section 4 lamellar conveyor. The final part of sheet metal has hooks on both sides of the sheet that the operator inclined racks engages with the left-load-bearing plate plate material handler 21 to cut blocks of fossil. After cutting blocks novobarovo machine 22 comes into the drive head material handler 21, and its carrying plates start moving with velocity 0.1 m/s render blocks of fossil onto the discharge conveyor and at the same time draw on becoming his material handler metal sheet with the top cut sloped fossil layer. After retracting all inclined layer of fossil 18 on becoming material handler 21 using traction devices 19 hood is using traction devices 19 metal sheet from under located on the loader 21 inclined layer of 18 and a climb up a steep ramp in the free space above the cut bottom 5 array. After these preparations included the drive heads of lamellar conveyor lava 4 and produced a speed of 0.1 m/s moving cut bottom of the array fossil on the length of the calculation to the new position of the bottom-hole 5 array repeated his previous position. Then again starts drilling of inclined cracks by working electric machines 17 as it moves from the top down with moving down the slit sheet metal, and the process repeats.
We define the length that you have to move every time bottomhole 5 array to get the height of the blocks of fossil height of 2.7 m Height blocks of 2.7 twice their size and length of a lava of 1.35 meters Because inclined layer of fossil 18 after it is moved to pallet loader lies horizontally, the height of cut blocks of equal thickness inclined layer of 18. fossil 2,7 M. Therefore, to obtain a height of cut blocks 2.7 m requires that the thickness inclined layer is also equal to 2.7 m Then the length that you want every time to move the bottom of the array is equal to 2.7 m:Sin alpha, & alpha - angle oblique layer to the horizon. At an angle of?=52º, this distance is 2.7 m:Sin 52º=2.7 m:0,79=3,4 M. This length is determined by the number of inclined cracks that need to penetrate through the processing of bottom-hole array of fossil on a separate angled layers (200 m to 7 m):3.4 m=57.
We define the length of time cutting cut bottom of the array fossil into separate blocks, ready to issue from a lava on loading. When the power developed shallow layer of 10 m and the height of the lower Podravka layer 1.5 m height cut bottom of the array is equal to 10 m-1.5 m=8,5 m At an angle of inclination to the horizon inclined cracks 52º length of inclined cracks equal to 8.5 m:Sin 52º=8.5 m:0,79=10,8 m At a speed of cutting of inclined cracks of 2.81 m/min according to technical characteristics of Vrubelya duration cutting one of inclined cracks equal 10.8 m:2,81 m/min=minutes 3,84 If movement speed of load-bearing plate material handler 0.1 m/S. the length of time to move inclined layer of fossil 18 (2) of the inclined position in a horizontal plate on the loader is (3.4 m+10,8 m):0.1 m/s=142,=2,36 min, where 3,4 m - distance move inclined layer along the transition section lamellar conveyor 10,8 m - the length of the plate material handler, which is equal to the length inclined fossil layer. Then the total time cut and move one inclined fossil layer is 3,84 min+2,36 min=minutes 6,2 The time spent on drilling of inclined cracks, 3,84 min combined with the time of cutting novobarovo Pereguda machine cutting vertical transverse cracks in located on the plate material handler previously posted inclined fossil layer. Since the height of oblique layer is 2.7 m and a speed of cutting of 2.81 m/min (because megobroba Pereguda machine is cutting edge and the drive is the same as electric machine "Ural-33"), while the cutting of inclined cracks equal 3.4 m:2,81 m/min=1,2 minutes As 1,2 min less than 3,84 min, the time for chasing the vertical transverse cracks fully combined with the time-cutting inclined lateral slits. But then the total time 6.2 min is completely cutting on separate units and issuance of lava in the history of fossil part cut bottom of the array 5 (2) in the amount of one inclined layer. Because just cut the bottom array has 57 inclined layer, the duration of their cutting into separate blocks and issuance of lava loading equal to 6.2 min·57=357 min=6 PM
For 18 hours of working time for the extraction of fossil may be
18 h:6 h=3 technological cycle for the extraction of minerals. With one cycle of production volume is 200 m·2.8 m x 10 m·1.3 t/KUB=7250 so Then the volume of daily production at the technologies under consideration equal 7250 t x 3=21750 tonnes.
The used literature:
1. Progressive technological schemes reservoir development in coal mines. IGD im. A.A. Skochinsky, A.A.. M. 1977
1. The method of underground mining of deposits of minerals located powerful gentle formations, large units, including education lower Podravka of plough layer the unit moves in her delivery pipeline, cutting in the bottom hole array of longitudinal length of a lava rear vertical and top on the border with roof cracks, lowering the array on the pipeline, cutting fossil units, the issuance of lava fossil blocks, their loading into cars and the locomotive hauling in the camera for crushing in rassypnoi mass, characterized in that settled on the conveyor array cut oblique transverse cracks, cutting array on sloping layers, which are then transferred to the horizontal position for cutting fossil units.
2. The method according to claim 1, characterized in that the drilling of the vertical transverse cracks produce novobarovo machine with electric drive.