The way to develop flat and inclined strata minerals

 

(57) Abstract:

In the way of development of flat and inclined layers of minerals, including division of a mine field along strike on the panel, holding on its borders in the seam at an angle to the excavation drifts intermediate inclined workings and development of the reservoir posts with the transition treatment faces inclined workings of the auxiliary conveyor and the slopes are in the middle of the field dividing by the front and rear panels, which further divide as dip and along strike to pieces by conducting more inclined workings. The refinement of the reservoir are long poles along strike with the transitions treatment faces in the lower part of the mine field first intermediate inclined workings, and then more, and in the upper part of the mine field is initially more, and then the intermediate inclined workings. During the development of the seams under the sediment and otricatelniy works, slope excavations located at the rear flank of the upper part of the panel is carried out with the surface or from the soil pit. 1 C.p. f-crystals, 6 ill.

The invention relates to mining and can be used when scrutinise along strike and dip.

The known method the panel design of sloping layers of minerals, including division of a mine field on the panel, holding the main haulage and excavation drifts, the Central panel of the slope (brumbelow) hadrami, dividing the panel into two wings, and the refinement of the reservoir in each wing panel long posts by wiping from the flanks with Central panels workings [1].

However, such technological schemes excavation of minerals in the wings lead to protected the Central panel production safety pillars, which contributes to increased losses of minerals in the bowels of the earth. Practice has shown that the extraction of pillars of coal after mining stocks in the wings of the panel leads to an increase in the cost of one tonne of extracted mineral compared to the cost obtained by development of the reservoir in the wing panel, benches, equipped mechanized complexes 2.5 - 10 times. In addition, a small length of the wings slope fields (average of 820 m) leads to frequent perimental mechanized complexes. The cost of equipment is modern complexes of the old lava into the new reach 20% of the cost on the lava at the expense of increasing the time spent dismantling and transportation work, to be used in nachalnika and the build-up of lava during its start-up in the work.

The closest in technical essence to the invention is a method of developing flat and inclined layers of minerals, including division of a mine field on the panel, holding slant mining and excavation drifts and testing of the formation lavas, starting from the bottom of a mine field, consistent with the introduction of the upstream faces one by one between adjacent parallel inclined workings and education stopnogo front tryout, in which the slope excavations carried out on the formation of minerals from the surface is carried out by the formation of minerals from the surface at an angle to the excavation drifts, and the refinement of the reservoir leading to the transition benches inclined workings [2].

However, this method does not provide for testing of flat and inclined strata minerals mining fields of great extent both strike and dip, which reduces the efficiency and scope of its application. When mining the mining fields of the great length of the strike and dip appear doom, and also increase the cost of their maintenance.

Problem to be solved and the purpose of the invention is to find an effective way to develop a flat and inclined coal seams placed in the apex of the fields of great extent along strike and dip, reducing the length of the delivery of materials, equipment, people, and coal mining, as well as reducing the cost of maintenance of excavation, increasing the load on the lava and lowering the cost of coal.

This goal is achieved by the fact that the way to develop flat and inclined layers of minerals, including division of a mine field along the strike panel (part), holding in the middle panel in the seam of minerals at an angle to the excavation drifts intermediate inclined workings (conveyor and auxiliary gradients) and the refinement of the reservoir means with the transition benches inclined mine workings, mine (the slope) box large extent on the strike and dip divide both along strike and down dip to pieces by conducting more inclined workings (slope) and the excavation drifts, moreover, additional slope excavations from the rear flange carried out in verhaege flank in the lower part of the field from the excavation drifts, dividing the field in the fall part, to the lower border of the field, and the refinement of the reservoir are long poles with transition treatment faces: bottom field first intermediate, and then additional gradients, and in the upper part of the field in the beginning of the secondary, and then the intermediate slopes. In addition, during the development of the coal seams, which goes under the pumps and mineral resources open-pit and underground operations, intermediate slope excavations conducted on the coal seam to the bottom edge of the field, and additional slope excavations located at the rear flank in the upper part of the field, spend on a seam of coal or the surface, or from soil career.

In Fig. 1 shows an example of the method in the development of the hollow coal seam below the working horizon of the existing mine; and Fig. 2 - section ABC in Fig. 1; Fig. 3 shows an example of the method at the opening of a coal seam from the surface; Fig. 4 - section ABC in Fig. 3; Fig. 5 shows an example of the method when otricatelniy the development of flat and inclined coal seam; Fig. 6 - section ABC in Fig. 5.

In Fig. 1 - 6 labeled 1, 2 - upper and lower part of Panalpina and bottom panels; 6, 7 - the main roadway, pipeline and auxiliary (Fig. 1, 2), passed through the formation of coal in the upper part 1 of a mine field; 8 - longwall face (treatment development); 9, 10 - front and rear flanks of a mine field; 11, 12 - auxiliary conveyor and gradients, are passed through the coal seam at the leading edge 9 of the main drifts 6, 7 (Fig. 1, 2) or from the surface 13 (Fig. 2, 3), or from soil 14 career 32 (Fig. 5, 6) to the bottom edge 15 of a mine field; 16 - water drainage; 17, 18 - intermediate slope excavations, and auxiliary conveyor slopes, passed on coal seam angle = 30-60to excavation drifts 19 in the direction of the rear flank 10 of the main drifts or from the surface, or from the soil pit to the bottom edge 15 of a mine field; 20, 21 - additional inclined developing, supporting and conveyor slopes, passed from the rear flank surface, or from soil quarry to the excavation drifts 22, dividing the specified panel to fall on parts 1, 2; 23, 24 - additional inclined developing, supporting and conveyor slopes, passed through the formation of coal from the front flank 9 in the lower part of the front panel from the excavation drifts 25, dividing the specified panel dip into parts 1, 2 to the bottom edge 15 of the Sha is at different levels (Fig. 1, 2); 29 - the gallery, equipped with conveyors (Fig. 3, 4); 30 - prom. Playground; 31 - exhaust reservoir; 32 - quarry (Fig. 5, 6); lPTS- the length of the stope (cleaning output), m; LW, Lcentury- the length of a mine field and extraction of pillars along the strike of the formation, km (Fig. 3, 4).

The method is as follows.

During the development of flat and inclined strata minerals great length to fall and strike at the leading edge 9 of a mine field or from the main drifts 6, 7 (Fig. 1, 2), or from the surface 13 (Fig. 3, 4), or from soil 14 career 32 (Fig. 5, 6) to the bottom edge 15 of a mine field conduct 11 and auxiliary conveyor 12 slope and equip the drainage 16. In the middle of a mine field at an angle to the excavation drifts 19 conduct intermediate slope excavations, 17 and auxiliary conveyor 18 slopes separating the mine field on the back and the front panel, which further divide as dip and along strike in parts 1, 2 and 3, 4, 5 by means of additional inclined openings 20, 21 and 23, 24 and excavation drifts 22 and 25.

Additional slope excavations 20, 21 from the rear flank 10 is carried out in the upper part 1 of the rear panel to the excavation drifts 22, share robotki 23, 24 is carried out in the lower part 2 of the front panel from the excavation drifts 25 separating the specified panel dip into parts 1, 2, to the bottom edge 15 of a mine field.

The refinement of the reservoir are long poles along strike with the transition treatment faces 8 in the lower part 2 of a mine field first intermediate 17. 18, and then an additional 23, 24 inclined mine workings, and in the upper part 1 of a mine field - first additional 20, 21, and then the intermediate 17, 18 inclined workings.

In the development of mineral deposits otkrytoje way (Fig. 5, 6) or coal seams, which goes under the sediment (Fig. 3, 4),flanking 11, 12 and intermediate 17, 18 slope excavations, revealing the slope field to the bottom edge 15, and additional slope excavations 20. 21 located at the rear of the wing 10 in the upper part 1 of the field, carried out with the surface (Fig. 3, 4) or from soil pit 14 (Fig. 5, 6).

The distance between the conveyor and the auxiliary intermediate slopes and more inclined workings take X = 60 - 200 m from the calculation of installation possibilities between the sluice jumpers 26 ensuring delivery of materials, equipment and people with the help of shipping among the framework of the field work posts big extent along strike without Premantura equipment mechanized complexes with transition treatment faces 8: in the lower part of the field - at the beginning of the intermediate inclined openings 17, 18 and then more inclined openings 23, 24, and in the upper part 1 of the field in the beginning of the secondary inclined openings 20, 21, and then the intermediate inclined openings 17, 18.

Conditions of application of the proposed method:

Take out the power of the stratum (layer), m is 1-4,5 m

The angle of incidence of the layer 0-30o< / BR>
The length of the shaft (the slope) field (LWand excavation column (Lcentury) along strike Up to 5 miles

The length of the shaft (the slope) field drop - Up to 2 miles

The angle of laying the intermediate and more inclined workings to the excavation drifts, - 30-60o< / BR>
The distance between the conveyor and the auxiliary slope, X - 60-120 m

The coal seam fire - Any

The gas content of the reservoir - Any

Development system - Long posts along strike with the transition of the love of inclined openings

The method of controlling the roof - Full collapse

Design parameters:

Remove the power layer (layer), m - 3.2 m

The volumetric weight of the coal, and 1.35 t/m3< / BR>
The angle of inclination, and 16o< / BR>
The length of a mine field: the strike, LW- 4050 m

in the fall, Lthe pad.- 1250

The bedding angle between rim and auxiliary gradients, X - 200 m

The length of the extraction column along strike, Lcentury- 4000 m

The length of the longwall workings, lPTS- 156 m

Industrial reserves: mine field, QW20.7 million tons

excavation of pole, Qcentury- 2.6 million tons

Podvigina stope, VPTS.Mac- 160 m/month

VPTS.year- 1920 m/year

Coal mining ANDmonths- 103650 t/month

ANDyear- 1244160 t/year

The number of workers, T - 240 people.

Productivity per worker, P - 432 t/month

Operating losses of coal, q - 4%

The annual economic effect from the implementation of the proposal, eg- 10 million rubles

Implementation of the proposed method in Kuzbass possible 63 coal seams with simultaneous operation 10 sotokanda, the economic effect will be about 100 billion rubles per year.

High technical and economic performance of sotosalbos when implementing the proposed method of development of flat and inclined coal seams are achieved through:

- reduce the cost of dismantling and transport work;

- increase the time of continuous operation of the mechanized systems through technological extension of the mining of pillars on PR is authorized techniques and the use of internal reserves, founded in technological schemes, allowing mining excavation sites great length without major repairs excavation drifts and Premantura equipment mechanized complexes. The length of the slope field for the strike is made such that mechanized complexes full use of its technical resources and after a failover post was removed. Not excluded the possibility during the excavation works replacement of worn-out corners harvesters, AFC, hydraulic system, as well as separate sections of the supports and the conveyor at the new.

- significantly reduced the extent of mine workings;

- full pipelining from the faces to the coal warehouse;

reliable ventilation excavation sites by separate their airing;

- purification of polluted water in the mine conditions by passing it through the goaf;

- significant reduction in the loss of minerals in the bowels of the earth by mining of pillars of coal protected inclined workings.

1. The way to develop flat and inclined layers of minerals, including division of a mine field along the strike panel, GRS pillars with the transition treatment faces the intermediate inclined workings, characterized in that an intermediate slope excavations, the auxiliary conveyor and the gradients are in the middle of a mine field between the rear and front panels, which further divide as dip and along strike to pieces by conducting more inclined excavations and excavation drifts, and additional slope excavations at the rear of the hold flag in the upper part of the rear panel to the excavation drifts dividing the specified panel dip on the side and from the front side in the lower part of the front panel from the excavation drifts dividing the specified panel dip into parts, the lower boundary of a mine field, and the refinement of the reservoir are these pillars with the transition treatment faces in the lower part of the mine field, first intermediate, and then more inclined mine workings, and in the upper part of the mine field is initially more, and then the intermediate inclined workings.

2. The method according to p. 1, characterized in that during the development of the seams under the sediment and otricatelniy works, intermediate slope excavations and additional slope excavations located at the rear flank of the upper part of the

 

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FIELD: mining industry.

SUBSTANCE: method includes driving of layer transporting and ventilation mines along soil and ceiling of bed, in massive and in extracted space, cutting of cleaning mines in cross-section of bed at angle of 27, mechanized delivery of coal along bed mines to coal furnaces and vertical dropping of coal to furnaces. Extraction of slanted transverse bed is performed along bed diagonals having direction to horizon at angle of 27, to provide for free sliding of coal without degradation. Delivery of coal from cleaning mine placed at angle of 60 to layer mine, to back field mine is performed by self-delivery from any place of extraction field along layer mine, field coal-lowering mine and field slanting coal furnace, being at angle of 27 to horizon. Field slanted coal furnaces are placed at distance from one another along 20 m normal. Field coal mines in form of fans of three mines are connected on field slanted coal furnaces at distance of fan start from one another of 60 m with output of mines ends to each layer mine of group of three above-lying slanted-transverse layers for whole diagonal length of extraction field at distance between mines outputs along layer soil of 60 m. Ceiling of cleaning mines may be supported without load, utilizing mechanical traction on the side of ventilation furnaces for pressing moveable support tool to layer ceiling.

EFFECT: higher efficiency.

2 cl, 3 dwg

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EFFECT: higher efficiency, effectiveness, broader functional capabilities.

8 cl, 5 dwg

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EFFECT: higher precision, higher speed of operation.

2 cl, 3 dwg

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EFFECT: higher efficiency.

2 dwg

FIELD: mining industry.

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EFFECT: higher intensiveness, higher reliability.

3 dwg

FIELD: mining industry.

SUBSTANCE: method includes preparation of slanted extraction fields, driving transport drifts, driving ventilation drifts for upper extraction field and use of transport drift of upper extraction field as ventilation during preparation of lower extraction field, driving two chambers through block in parallel to transport drift. Lower chamber is driven with advance relatively to transport drift and to upper chamber and with slant, providing for free flow of water from transport drift and both chambers. Transport drift is periodically filled with breakthroughs to upper chamber, which is by breakthroughs connected to lower chamber. Width of lower chamber is set in accordance to condition of placement of working tool of technological extraction complex therein, and width of upper chamber - from condition of placement of rock therein which is product from driving of transport drift. Transport drift and both chambers are driven with straight preparation and extraction order of extraction fields, using solid system of extraction fields extraction.

EFFECT: higher intensiveness of operation.

3 dwg

FIELD: mining industry.

SUBSTANCE: method includes driving mines, drilling saturation wells along mineral resource, pressurization thereof by pressurizing means, feeding of softening reagent under pressure and saturation of mineral resource massif. Additionally saturation wells are drilled at bed ceiling, pressurized and softening reagent is pumped therein with 1-2 day exposure after forcing of reagent into mineral resource massif. Well along ceiling are placed at an angle so that distance from pressurizing means location to line of contact of ceiling to mineral resource was not less than saturation radius, and distance between wells was not less than 2-3 saturation radiuses. Between saturation wells along bed ceiling additionally drilled are wells for explosive substance charges with slant for 15-20 degrees greater, than slant of saturation wells, while the distance between saturation wells in this case is increased to 3-4 saturation radiuses. For prior processing of mineral resource by softening reagent a mine is driven in front of cleaning operations front, from which on both sides along mineral resource bed wells are drilled for feeding softening reagent therein, and after end of processing and removal of pressurizing means mine is equipped with degassing pipes.

EFFECT: higher efficiency and higher safety.

3 cl, 2 dwg

FIELD: mining industry.

SUBSTANCE: method includes drilling a system of hydraulically connected wells, directed and horizontal, cased and not cased along coal bed. Hydrodynamic and fire effect on coal bed is performed through these. Gassing and degassing processes for coal bed are performed serially via a system of hydraulically connected wells. In that case degassing process is performed by thermal treatment of channels of coal by counter-flow displacement of burning source after combustion of coal bed in one of wells. Then neutral gas is forced into system of hydraulically connected wells, ignited zone is quenched and coal methane is extracted from several wells, equipped for degassing. Gassing process is performed via repeated combustion through specially drilled vertical well and forcing flow into directed cased wells. Formed combustible gas is drained through directed non-cased wells in direction by normal lines from horizontal transverse well.

EFFECT: higher efficiency.

1 dwg

FIELD: mining industry.

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EFFECT: higher personnel safety, higher efficiency, lower costs.

1 dwg

FIELD: mining industry.

SUBSTANCE: method includes driving mines in front of cleaning face, processing ceiling and mineral resource by softening agents and extraction of it by cleaning combines with additional removal of mineral resource from below the ceiling. In massif below the ceiling shafts and mines are driven at maximal distance on basis of capabilities of used drilling equipment, not allowing during drilling fro processing massif below ceiling deviation from it until contact with surface by face-adjacent ceiling, supported by cleaning combine support, and distance between following driven mines is doubled, which mines are necessary for displacement of drilling equipment and equipment for feeding softening agent into wells. After finishing its pumping these wells and mines are used through connections in shafts with removing pipeline for extracting methane and degassing mineral resources. Stack of mineral resource unprocessed by softening agent has value of no more than one-two steps of extraction of coal bands along whole length of cleaning face, and the very removal of mineral resources from massif is performed in portions along whole length of mineral resource no more than 2-3 thicknesses f cutting bands of mineral resource. Device for cutting massif includes sections of mechanized support, containing base, connected to spreader posts, extending executive tool. Combine support on the side of cave-in between back posts has wedge-shaped cutting posts, hydraulically connected to back posts. Cutting posts are provided with individual means for controlling feed and draining of hydraulic liquid. Cutting posts have devices, forming in case of their spreading vibration of hydraulic liquid sent to them.

EFFECT: higher efficiency, higher personnel safety.

2 cl, 3 dwg

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