CN102444401A - Coal mining method by filling on blasting mining face of thin coal seam and relevant equipment - Google Patents
Coal mining method by filling on blasting mining face of thin coal seam and relevant equipment Download PDFInfo
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Abstract
The invention relates to a coal mining method by filling on a blasting mining face of a thin coal seam and relevant equipment, belonging to the technical field of coal-mining and filling equipment of the thin coal seam. The method comprises the following main steps of: carrying out parallel operation on coal mining and filling under the protection of a same hydraulic bracket, and taking the relevant equipment such as the hydraulic bracket, a solid material scraping plate conveyer and a bridge-type stage loader as basis. The invention is applicable to coal mining operation by filling on the blasting mining face of the thin coal seam below 1.3m.
Description
Technical field
Blasting mining in thin seam work plane filling coal mining method of the present invention and relevant device belong to girdle and mine and the stowage unit technical field, are specifically related to a kind of method and relevant device of blasting mining in thin seam work plane filling coal mining.
Background technology
Coal mining both provided the energy for human survival, also human environment had been produced serious negative effect simultaneously.Coal mining not only forms the goaf in the down-hole, cause ground surface to subside, and surface structures and highway are damaged, and the discharge from the down-hole of a large amount of discarded object (spoil accounts for mainly), and the one, need take a large amount of soils, the 2nd, spontaneous combus tion of waste heap is serious environment pollution again.Therefore traditional coal mining method is faced with challenge.Chinese scholar such as Qian Minggao academician propose the new ideas of the green exploitation of coal, (the green production technique in mining area, publishing house of China Mining University; In March, 2002) Sun Henghu etc. proposes high-water material filling technique (contemporary consolidated fill technology; Metallurgical industry publishing house, in March, 2008), Miu Xiexing etc. propose solid waste filling technique (comprehensive mechanization solid waste filling coal mining method and technology; Publishing house of China Mining University; In December, 2010), mine such as energy Xingtai Coal Mine has carried out the research and the industrial test of discarded object filling mining in the Ji, and has obtained success.That is: be filled to discarded object (spoil) in the goaf of coal, make discarded object (spoil) no longer need gug.After the discarded object that the coal goaf is filled with (spoil) is full of; Just can not cause subsiding of ground surface; Thereby solved discarded object (spoil) gug and formed occupation of land of discarded object (spoil accounts for mainly) mountain and contaminated environment, ground surface the subside above ground structure that causes and the damage of highway.
But above-mentioned research and industrial test are only carried out in coal seam more than 2 meters, and girdle (below 1.3 meters) is because the exploitation existence: Coal Seam Thickness Change is big; The operating space is little, poor working environment, reason such as benefit is low.The solid waste filling still belongs to blank at present, particularly contains the blasting mining in thin seam work plane that can not use coal-winning machine of hard dirt band.
Summary of the invention
For overcoming the deficiency of prior art, the present invention provides a kind of blasting mining in thin seam work plane filling coal mining method and relevant device, is applicable to the blasting mining in thin seam work plane filling coal mining below the 1.3m.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: blasting mining in thin seam work plane filling coal mining method, and comprise and mining and filling, under same hydraulic support shielding, mine and the filling parallel operations.
Blasting mining in thin seam work plane filling coal mining method is undertaken by following step:
The first step excavates raw coal transportation lane and solid filling transport of materials lane; And cut eye, form ventilation system;
Second step, in raw coal transportation lane, first conveyer is installed, on the exploitation work plane, a hydraulic support is installed at least, in the place ahead of hydraulic support second conveyer is installed, first conveyer is connected with second conveyer through fortune coal elevating conveyor.
The 3rd step, in solid filling transport of materials lane the 3rd conveyer is installed, the hydraulic support rear of on the exploitation work plane, installing at solid filling material drag conveyor, and the 3rd conveyer is connected with solid filling material drag conveyor through bridge conveyor.
First conveyer, second conveyer and the 3rd conveyer or be drag conveyor, or be rubber conveyer.
The 3rd conveyer is connected with ground solid filling material delivery system through the well that feeds intake, and ground solid filling material delivery system comprises: tip, solid filling material storehouse, ground and the well that feeds intake; Adopt loading mechanization to be transported to charging hopper to the solid filling material from tip; Crushing engine through being installed in the charging hopper below carries out fragmentation; Arrive solid filling material storehouse, ground through the 4th conveyor delivery again; The 5th conveyor delivery through being installed in solid filling material storehouse, ground below gets into the 3rd conveyer through the well that feeds intake at last to the well that feeds intake again.
The 4th conveyer and the 5th conveyer or be drag conveyor, or be rubber conveyer.
The filling process flow process is: by solid filling material drag conveyor filling is carried out in solid filling mass transport to hydraulic support rear end; Filling is to be carried out to heading by solid filling material drag conveyor tail in proper order; Rise after being dumped into certain altitude when previous striker plate falls, next then striker plate falls, and starts the reinforcement mechanism at the hydraulic support rear portion at previous striker plate place immediately; Solid filling material to having unloaded is tamped, till compacting.When whole exploitation work plane all is full of; Stop first round filling; Solid filling material drag conveyor drawn move a step pitch, all shift the casting resin that solid filling material drag conveyor unloads onto the hydraulic support upper back, make it connect top and compacting with reinforcement mechanism; Open all striker plates at last; Head to solid filling material drag conveyor carries out filling, and it is anterior after first round filling is accomplished solid filling material drag conveyor to be passed step pitch a to hydraulic support, and filling is taken turns in beginning second.
A kind of hydraulic support of the design according to the present invention comprises: back timber and back back timber before back timber, pillar and base, back timber comprise, and preceding back timber is hinged to one with the back back timber, and the front end of back timber before forestope is installed in through guide runner mechanism, forestope are and upwarp structure; Preceding back timber bottom is equipped with spillplate; Spillplate comprises spillplate and following spillplate, the bottom of back timber before last spillplate is hinged on, and last spillplate is connected with the push unit that is installed in preceding back timber bottom; Following spillplate is fixedly mounted on the ledge of second conveyer near the base of hydraulic support; The base rear portion of hydraulic support is equipped with reinforcement mechanism, and the reinforcement mechanism below is equipped with stretching device, and the stretching device front end is connected with solid filling material drag conveyor.
A kind of solid filling material drag conveyor of the design according to the present invention; Comprise: motor, reductor, head sprocket wheel, striker plate and tail sprocket wheel, motor via reducer is connected with the head sprocket wheel, and the head sprocket wheel is connected with the tail sprocket wheel through chain; Between head sprocket wheel and tail sprocket wheel, be provided with the solid material delivery chute; On the solid material delivery chute, be provided with striker plate, striker plate is " recessed " word structure, and the lower hinge of striker plate is on the solid material delivery chute; The top of striker plate and the front end of hydraulic jack are hinged, the hinged solid material delivery chute in the rear end of hydraulic jack.
A kind of bridge conveyor of the present invention's design comprises: head section, mid portion and tail part, and head section is provided with support column, and support column is a hydraulic jack; Tail part and the 3rd conveyer tail overlap joint of overlapping; Before and after below the H frame of the 3rd conveyer tail part, be provided with slideway; Tail part, mid portion, head section all are placed on above the slideway; On the H frame of the 3rd conveyer tail part, pulling and moving equipment is installed, pulling and moving equipment moves chain and is connected with bridge conveyor through drawing.
The present invention compares the beneficial effect that has with prior art:
The present invention is through design of thin coal seam blast mining face filling coal mining method and relevant device; Can realize the girdle filling coal mining below 1.3 meters; Solid filling material transport system of the present invention; With the safe and efficient down-hole that is delivered to of ground solid filling material, and be transported to the solid filling materials transportation system in blast mining face goaf, and through the reinforcement mechanism compacting.Realize girdle high-efficiency and continuous filling coal mining.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further:
Fig. 1 is an apparatus arrangement sketch map of the present invention;
Fig. 2 is ground solid filling material transport system figure of the present invention;
Fig. 3 is a filling coal mining system layout of the present invention;
Fig. 4 is the structural representation of hydraulic support of the present invention;
Fig. 5 is the structural representation of solid filling material drag conveyor of the present invention;
Fig. 6 is the striker plate structural representation of solid filling material drag conveyor of the present invention;
Fig. 7 is the structural representation of bridge conveyor of the present invention;
Fig. 8 is the A-A amplification view of bridge conveyor of the present invention;
Fig. 9 is the B-B amplification view of bridge conveyor of the present invention;
Figure 10 is the C-C amplification view of bridge conveyor of the present invention.
Among the figure; 1 is hydraulic support; 2 are raw coal transportation lane; 3 is solid filling transport of materials lane; 4 is first conveyer; 5 is second conveyer; 6 are fortune coal elevating conveyor; 7 is the 3rd conveyer; 8 is solid filling material drag conveyor; 9 is bridge conveyor; 10 is loading mechanization; 11 is tip; 12 is charging hopper; 13 is crushing engine; 14 is the 4th conveyer; 15 is solid filling material storehouse, ground; 16 is the 5th conveyer; 17 are the well that feeds intake; 18 is striker plate; 19 is reinforcement mechanism; 20 is pillar; 21 is base; 22 is preceding back timber; 23 is the back back timber; 24 is forestope; 25 is spillplate; 26 is last spillplate; 27 are following spillplate; 28 is push unit; 29 is stretching device; 30 is motor; 31 is reductor; 32 is the head sprocket wheel; 33 is the solid material delivery chute; 34 is the tail sprocket wheel; 35 is hydraulic jack; 36 is head section; 37 is mid portion; 38 is the tail part; 39 is the 3rd conveyer tail part; 40 is the H frame; 41 is slideway; 42 is pulling and moving equipment; 43 move chain for drawing; 44 is support column.
The specific embodiment
As shown in Figure 1, the girdle filling coal mining is the organic synthesis of coal mining and mechanization solid filling.Blasting mining in thin seam work plane filling coal mining method; Compare with traditional blast mining face, the girdle solid filling is mined and can be implemented in same hydraulic support 1 shielding coal mining and filling parallel operations down, and the work plane arrangement that the girdle solid filling is mined and traditional blast mining face are arranged basic identical; Difference is the rear at coal-face; Promptly, arrange the packing job face, in tailentry, arrange a solid filling material transport mechanism again at goaf side; Or be rubber conveyer or for drag conveyor, the solid filling material is delivered on the solid filling material drag conveyor 8.This work plane arrangement can be realized the filling and the parallel operations in same work plane of mining.
The installation that is used for the equipment of filling coal mining is carried out according to the following steps:
The first step excavates raw coal transportation lane 2 and solid filling transport of materials lane 3; And cut eye, form ventilation system;
Second step, in raw coal transportation lane 2 first conveyer 4 is installed, on the exploitation work plane, a hydraulic support 1 is installed at least, second conveyer, 5, the first conveyers 4 are installed in the place ahead of hydraulic support 1 are connected with second conveyer 5 through fortune coal elevating conveyor 6.
The 3rd step; 3 install the 3rd conveyer 7 in solid filling transport of materials lane; Solid filling material drag conveyor 8, the three conveyers 7 being connected through bridge conveyor 9 and solid filling material drag conveyor 8 is installed at hydraulic support 1 rear that exploitation is installed on the work plane.
First conveyer 4, second conveyer 5 and the 3rd conveyer 7 or be drag conveyor, or be rubber conveyer.
The basic thought of blasting mining in thin seam work plane filling coal mining technology is that the discarded object of ground or down-hole such as spoil, flyash, building waste, loess, drift-sand etc. are used as filler, and down-hole driving discarded object spoil etc. carries out filling through can directly being transported to work plane after the processing such as fragmentation.
As shown in Figure 2, generally solid filling material (mining area solid waste) needs be transported to filling operation face from ground, needs therefore to arrange that one overlaps from ground the solid filling material transport system.This transportation system is connected with the 3rd conveyer 7 through the well 17 that feeds intake; Through some transfer systems; At last the solid filling material is sent into solid filling material drag conveyor 8; Striker plate 18 by solid filling material drag conveyor 8 is discharged into the goaf again, after the reinforcement mechanism 19 at hydraulic support 1 rear portion tamp.
Ground solid filling material delivery system comprises: tip 11, solid filling material storehouse, ground 15 and the well 17 that feeds intake; Adopt loading mechanization 10 to be transported to charging hopper 12 to the solid filling material from tip 11; Crushing engine 13 through being installed in charging hopper 12 belows carries out fragmentation; Be transported to solid filling material storehouse, ground 15 through the 4th conveyer 14 again; Be transported to the well 17 that feeds intake through the 5th conveyer 16 that is installed in 15 belows, solid filling material storehouse, ground again, get into the 3rd conveyer 7 through the well 17 that feeds intake at last.
Being transported to the well 17 that feeds intake with the hillock spoil is that example is introduced ground solid filling material delivery system.Spoil following problem may occur in the ground transport process: it is longer that 1. spoil is piled up the time on ground.The influence of natural cause such as receive air humidity, rainfall, expose to the weather is serious, and the small spoil particle of granularity corrodes through long-term, may cohere on rubber conveyer; Simultaneously, humidity greatly also can influence the mechanical property of spoil, and then influence filling effect.2. hillock spoil granularity is inhomogeneous, and spoil that particle diameter is bigger such as the direct input well 17 of going into to feed intake causes the well 17 that feeds intake to stop up easily.3. ground transportation system miscarriage can cause ground inventory and down-hole use amount unbalanced, influences downhole production.
To above problem, take following mode to solve: 1. build the ground transport corridor, the protection ground transportation system receives the influence of natural cause such as rainfall to avoid solid filling materials such as spoil; 2. in ground transportation system, increase broken link, the spoil bigger to particle diameter carries out fragmentation; 3. the control room that feeds intake, ground is set, floor-based transport is controlled, coordinate the relation between ground inventory and the down-hole use amount.
General ground solid filling material delivery system is divided into 3 links: 1. the solid filling material is loaded into charging hopper 12.This link mainly adopts loading mechanization 10, reprints charging hopper 12 to the solid filling material.2. the solid filling material is carried out fragmentation.The solid filling material is transported to crushing engine 13 or can carries out fragmentation through crushing engine 13 through at 12 times direct breaker mountings 13 of charging hopper through conveyer.3. be transported to the well 17 that feeds intake.Solid filling material after the fragmentation can directly be delivered to the well 17 that feeds intake through transporter; Will have the control system that the travelling speed of solid filling material is controlled this moment; Solid filling material storehouse, ground 15 need be set under the situation of necessity, get into the well that feeds intake through several transportation systems again.
As shown in Figure 3, girdle solid filling coal mining system arranges, it is following wherein to transport coal, haul, ventilation, fortune cash route:
Fortune coal route: filling coal mining work plane → haulage way → transportation is gone up a hill → main haulage roadway → haulage cross-cut → shaft coal pocket → main shaft → ground.
Haul route: the big lane of auxiliary shaft → shaft station → assistant conveyance crossdrift → assistant conveyance → bottom, exploiting field parking lot → ginney → top, exploiting field parking lot → tailgate → filling coal mining work plane.
New wind path line: the big lane of auxiliary shaft → shaft station → assistant conveyance crossdrift → assistant conveyance → ginney tailgate → filling coal mining work plane.
Weary wind path line: filling coal mining work plane → tailgate → windstone gate → ventilating shaft.
Fortune spoil route: the ground → solid material vertical transport system → shaft station → big lane → ginney of assistant conveyance crossdrift → assistant conveyance → tailgate → filling coal mining work plane.
Blasting mining in thin seam work plane filling coal mining method technology comprises coal winning technology and filling process.Coal winning technology is identical with common blast mining face, and its filling process flow process is: at blast mining face solid filling material drag conveyor 8 is moved to back timber 23 rear portions, hydraulic support 1 back and carry out filling.The filling order is carried out to heading by solid filling material drag conveyor 8 tails; When filling not; The striker plate 18 of solid filling material drag conveyor 8 is opening or rise state, closes when previous striker plate 18 and rises after being dumped into certain altitude, closes next striker plate 18 dischargings; The reinforcement mechanism 19 that starts support rear portion, previous striker plate 18 place immediately promotes the compacting plate, and the solid filling material that has unloaded is tamped.Several cycles like this is till compacting.When entire working surface all is full of; Stop first round filling, solid filling material drag conveyor 8 is drawn move a step pitch, move to back timber 23 rear portions behind the support; Hydraulic support 1 front upper part is all shifted in casting resin with reinforcement mechanism 19 unloads solid filling material drag conveyor 8 onto; Make it connect top and compacting, open all striker plates 18 at last, the head of solid filling material drag conveyor 8 is carried out filling.With back timber 23 rear portions behind step pitch to support of solid filling material drag conveyor 8 passing, filling was taken turns in beginning second after first round filling was accomplished;
It is hydraulic support 1 with the core equipment that develops simultaneously of mining that blasting mining in thin seam work plane filling coal mining method is implemented in filling in the same work plane.Many weeks; Realize that the 3 big main points that solid filling is mined are: space, passage and power; And in the work plane arrangement of blasting mining in thin seam work plane filling coal mining method: (1) hydraulic support 1 is compared with the conventional hydraulic support, has removed back timber after the shielding of conventional hydraulic support, and generation is with back timber after the level 23; Can the solid filling material directly be poured after the level in the back timber 23 shielding spaces, rather than the goaf; (2) by bridge conveyor 9 the solid filling material is transported to the solid filling material drag conveyor 8 below the back timber 23 after the level of being laid on, forms the continuous transfer passage of solid filling material; (3) the solid filling material is discharged in the shielding space of back back timber 23 from solid filling material drag conveyor 8 by striker plate 18, by reinforcement mechanism 19 the solid filling material is tamped to the goaf again, realizes the sold stowing of solid filling material.For the coal that explosion is dished out falls on the conveyer of installing before the base 21, divide into spillplate 25 simultaneously at the preceding back timber 22 of hydraulic support 1.
As shown in Figure 4; The hydraulic support 1 that satisfies the 3 big main points designs that realize that solid filling is mined comprises: back timber, pillar 20 and base 21; Its primary structure is: back timber 22 and back back timber 23 before back timber comprises, and preceding back timber 22 is hinged to one with back back timber 23, and preceding back timber 22 front end sleeves are equipped with forestope 24; The front end of back timber 22 before forestope 24 is installed in through guide runner mechanism, forestope 24 are and upwarp structure; A little less than preceding back timber 22 planes, do not lift on stretching out in the process gradually when stretching out, so that have the good top performance that connects; Preceding back timber 22 bottoms are equipped with spillplate 25, and spillplate 25 comprises spillplate 26 and following spillplate 27, the bottom of back timber 22 before last spillplate 26 is hinged on; Last spillplate 26 is connected with the push unit 28 that is installed in preceding back timber 22 bottoms, and following spillplate 27 is fixedly mounted on the ledge of second conveyer 5 near the base 21 of hydraulic support 1, and last spillplate 26 can be when not blowing out; Can upwards dig through push unit 28, so that form the walkway, when blowing out to horizontal level; Last spillplate 26 recovers and preceding back timber 22 upright positions through push unit 28; And overlap with following spillplate 27, the formation enclosing wall, the coal that explosion is dished out drops on the transporter; Spillplate 25 is provided with the isodiametric bleeder port of equidistance, to discharge the gas that explosion produces.Base 21 rear portions of hydraulic support 1 are equipped with reinforcement mechanism 19, and reinforcement mechanism 19 belows are equipped with stretching device 29, and stretching device 29 front ends are connected with solid filling material drag conveyor 8.
Reinforcement mechanism 19 adopts the two-stage stretching structure, to increase its magnification, reduces hydraulic support 1 overall dimensions; When the design of reinforcement mechanism 19 can be satisfied the solid filling drag conveyor and retracts state, back space can be pushed away full, and reinforcement mechanism 19 front ends can reach the work plane mining height, and assurance does not have interference with solid filling material drag conveyor 8.
Hydraulic support 1 adopts brace type to stamp the formula hydraulic rack structure, and back timber adopts overall structure, and the active side backplate is not established in the back timber both sides, to simplify supporting structure, to alleviate weight support frame.Preceding back timber 22 is the latch plate structure with back back timber 23, so that reduce back timber thickness, adapts to blasting mining in thin seam working face mining needs better.
The integral body of hydraulic support 1 moves, and adopts jack double as guiding mechanism.The passing step pitch is 1200mm, and the stroke of passing jack is 1 300mm.Jack is a prior art, can directly use.
In order to increase the height of walkway as far as possible, alleviate the weight of blasting mining in thin seam work plane filling coal mining hydraulic support 1, pillar 20 and base 21 are designed to the flexible structure of steel spring plate.
Hydraulic support 1 has adopted two expansion box stabilizing mechanisms, and base 21 postmedians are provided with the uncovered casing respectively, and expansion box is mated and slides therein, and expansion box nose end and back timber belly ear are hinged, have guaranteed the stability of support.This stabilizing mechanism has compact conformation, lightweight advantage.
Like Fig. 5, shown in Figure 6, girdle is because the space is little, and filling drag conveyor in rear portion can not be suspended on the back back timber 23 times of hydraulic support 1, therefore, must design adapt to girdle solid filling material drag conveyor 8.It comprises: motor 30, reductor 31, head sprocket wheel 32, striker plate 18, solid material delivery chute 33 and tail sprocket wheel 34; Motor 30 is connected with head sprocket wheel 32 through reductor 31; Head sprocket wheel 32 is connected with tail sprocket wheel 34 through chain, between head sprocket wheel 32 and tail sprocket wheel 34, is provided with solid material delivery chute 33, on solid material delivery chute 33, is provided with striker plate 18; Striker plate 18 is " recessed " word structure; The lower hinge of striker plate 18 is on solid material delivery chute 33, and the front end of the top of striker plate 18 and hydraulic jack 35 is hinged, the hinged solid material delivery chute 33 in the rear end of hydraulic jack 35.
The solid filling material is got into by solid material delivery chute 33; Under the drive of conveyer; To head motion, according to the filling process flow process, striker plate 18 with the material retaining down by tail; Reinforcement mechanism 19 by the base that is installed in hydraulic support 1 21 rear portions pushes goaf and compacting with the solid filling thing, to realize coal mining and filling parallel operations.
Shown in Fig. 7 to 10, in blasting mining in thin seam work plane filling coal mining method, be the solid filling material transfer key technology to the goaf; Bridge conveyor 9 is the equipment that is changed over to the solid filling material by transporter attal drag conveyor 10; Adopt of medium-thickness seam filling at present covered belt stepped type conveyer more, and the structure of covering belt walking conveyer is for installing the rubber conveyer that is the upward slope shape additional covering belt walking car top, but because need realize moving with covering belt walking car; So not only price is high to cover belt walking conveyer; And require head-room high, and cause difficult, cause cost of winning to improve.Therefore; Must design the bridge conveyor 9 that adapts to the girdle filling; It comprises: head section 36, mid portion 37 and tail part 38; Tail part 38 and the 3rd conveyer tail part 39 overlapping overlap joints, effectively overlap joint is of a size of and can satisfies the required size of the working face extraction production regular circulation of class, and front and back are provided with slideway 41 below the H frame 40 of the 3rd conveyer tail part 39; Tail part 38, mid portion 37, head section 36 all are placed on above the slideway; On the H frame 40 of the 3rd conveyer tail part 39, pulling and moving equipment 42 is installed, pulling and moving equipment 42 moves chain 43 and is connected with bridge conveyor 9 through drawing, and pulling and moving equipment 42 journeys are greater than 1 coal mining cyclic advance.
Bridge conveyor 9 is the whole steel frame construction of segmentation; Each segmentation integral body is connected into an integral body through connecting bolt, along with the advance of the face, and the slideway 41 below slideway 41 before and after being laid on H frame 40 belows of the 3rd conveyer tail part 39 and shop head section 36, mid portion 37, the tail part 38; Do not have no progeny and move through pulling and moving equipment 42 according to the work plane cyclic advance; Satisfy work plane and mine continuously and the requirement of filling continuously, not only simple in structure, and do not use the crawler-type traveling car; Price is low, requires low to head-room.
The support column 44 of head section 36 is a hydraulic jack, can adapt to the requirement of head-room and feed height change.
The 3rd conveyer tail part 39 is the whole steel frame construction of segmentation, and each segmentation integral body is connected into an integral body through connecting bolt, so that lay slideway 41, supplies bridge conveyor 9 to retreat.
Claims (9)
1. blasting mining in thin seam work plane filling coal mining method comprises and mining and filling, it is characterized in that: under same hydraulic support (1) shielding, mine and the filling parallel operations.
2. blasting mining in thin seam work plane filling coal mining method according to claim 1 is characterized in that: undertaken by following step:
The first step excavates raw coal transportation lane (2) and solid filling transport of materials lane (3); And cut eye, form ventilation system;
Second step; First conveyer (4) is installed in raw coal transportation lane (2); On the exploitation work plane, a hydraulic support (1) is installed at least, in the place ahead of hydraulic support (1) second conveyer (5) is installed, first conveyer (4) is connected with second conveyer (5) through fortune coal elevating conveyor (6).
The 3rd step; The 3rd conveyer (7) is installed in solid filling transport of materials lane (3); Hydraulic support (1) rear of on the exploitation work plane, installing at solid filling material drag conveyor (8), and the 3rd conveyer (7) is connected with solid filling material drag conveyor (8) through bridge conveyor (9).
3. blasting mining in thin seam work plane filling coal mining method according to claim 2 is characterized in that: described first conveyer (4), second conveyer (5) and the 3rd conveyer (7) or for drag conveyor, or be rubber conveyer.
4. blasting mining in thin seam work plane filling coal mining method according to claim 1 and 2; It is characterized in that: described the 3rd conveyer (7) is connected with ground solid filling material delivery system through the well that feeds intake (17); Ground solid filling material delivery system comprises: tip (11), solid filling material storehouse, ground (15) and the well that feeds intake (17); Adopt loading mechanization (10) to be transported to charging hopper (12) to the solid filling material from tip (11); Crushing engine (13) through being installed in charging hopper (12) below carries out fragmentation; Be transported to solid filling material storehouse, ground (15) through the 4th conveyer (14) again; Be transported to the well that feeds intake (17) through the 5th conveyer (16) that is installed in below, solid filling material storehouse, ground (15) again; Get into the 3rd conveyer (7) through the well that feeds intake (17) at last, enter into solid filling material drag conveyor (8) through bridge conveyor (9) again, be discharged into the goaf by solid filling material drag conveyor (8) again.
5. blasting mining in thin seam work plane filling coal mining method according to claim 4 is characterized in that: described the 4th conveyer (14) and the 5th conveyer (16) or for drag conveyor, or be rubber conveyer.
6. blasting mining in thin seam work plane filling coal mining method according to claim 1; It is characterized in that: described filling process flow process is: by solid filling material drag conveyor (8) filling is carried out in solid filling mass transport to hydraulic support (1) rear end; Filling is to be carried out to heading by solid filling material drag conveyor (8) tail in proper order; Rise after being dumped into certain altitude when previous striker plate (18) falls, next then striker plate (18) falls, and starts the reinforcement mechanism (19) at hydraulic support (1) rear portion at previous striker plate (18) place immediately; Solid filling material to having unloaded is tamped, till compacting.When whole exploitation work plane all is full of; Stop first round filling; Solid filling material drag conveyor (8) drawn move a step pitch, all shift hydraulic support (1) upper back onto, make it connect top and compacting with the casting resin that reinforcement mechanism (19) unloads solid filling material drag conveyor (8); Open all striker plates (18) at last; Head to solid filling material drag conveyor (8) carries out filling, after first round filling is accomplished solid filling material drag conveyor (8) is passed step pitch a to hydraulic support (1) front portion, and filling is taken turns in beginning second.
7. the hydraulic support of a blasting mining in thin seam work plane filling coal mining method according to claim 1 design; Comprise: back timber, pillar (20) and base (21); It is characterized in that: back timber comprises preceding back timber (22) and back back timber (23); Before back timber (22) be hinged to one with back back timber (23), forestope (24) is installed in the front end of preceding back timber (22) through guide runner mechanism, forestope (24) is and upwarps structure; Preceding back timber (22) bottom is equipped with spillplate (25); Spillplate (25) comprises spillplate (26) and following spillplate (27); Last spillplate (26) is hinged on the bottom of preceding back timber (22); Last spillplate (26) is connected with the push unit (28) that is installed in preceding back timber (22) bottom, and following spillplate (27) is fixedly mounted on the ledge of second conveyer (5) near the base (21) of hydraulic support (1), and base (21) rear portion of hydraulic support (1) is equipped with reinforcement mechanism (19); Reinforcement mechanism (19) below is equipped with stretching device (29), and stretching device (29) front end is connected with solid filling material drag conveyor (8).
8. the solid filling material drag conveyor of a method according to claim 1 design; Comprise: motor (30), reductor (31), head sprocket wheel (32), striker plate (18), solid material delivery chute (33) and tail sprocket wheel (34); It is characterized in that: motor (30) is connected with head sprocket wheel (32) through reductor (31); Head sprocket wheel (32) is connected with tail sprocket wheel (34) through chain, between head sprocket wheel (32) and tail sprocket wheel (34), is provided with solid material delivery chute (33), on solid material delivery chute (33), is provided with striker plate (18); Striker plate (18) is " recessed " word structure; The lower hinge of striker plate (18) is on solid material delivery chute (33), and the front end of the top of striker plate (18) and hydraulic jack (35) is hinged, and the rear end of hydraulic jack (35) is hinged on the solid material delivery chute (33).
9. the bridge conveyor of a method according to claim 1 design, comprising: head section (36), mid portion (37) and tail be (38) partly, and it is characterized in that: head section (36) is provided with support column (44), and support column (44) is a hydraulic jack; Tail part (38) and the 3rd conveyer tail part (39) overlapping overlap joint; Before and after H frame (40) below of the 3rd conveyer tail part (39), be provided with slideway (41); Tail part (38), mid portion (37), head section (36) are all placed slideway (41) in the above; On the H frame (40) of the 3rd conveyer tail part (39), pulling and moving equipment (42) is installed, pulling and moving equipment (42) moves chain (43) and is connected with bridge conveyor (9) through drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110393149 CN102444401B (en) | 2011-11-28 | 2011-11-28 | Coal mining method by filling on blasting mining face of thin coal seam and relevant equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110393149 CN102444401B (en) | 2011-11-28 | 2011-11-28 | Coal mining method by filling on blasting mining face of thin coal seam and relevant equipment |
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| CN102943689A (en) * | 2012-11-13 | 2013-02-27 | 河北煤炭科学研究院 | Coal mine bulk stock cut and fill mining method |
| CN102996131A (en) * | 2012-12-10 | 2013-03-27 | 中国矿业大学 | Solid-filling coal mining method with two pre-excavating tunnels for advancing |
| CN103726845A (en) * | 2013-12-04 | 2014-04-16 | 山东金阳矿业集团有限公司 | Special device used in explosive mining method |
| WO2015058483A1 (en) * | 2013-10-23 | 2015-04-30 | 中国矿业大学 | Method for separately mining and transporting thick coal seam with gangue, and backfilling goaf with gangue |
| WO2015161771A1 (en) * | 2014-04-25 | 2015-10-29 | 中国矿业大学 | Matching method for equipment for solid-filling coal face of coal mine |
| WO2018176892A1 (en) * | 2017-03-31 | 2018-10-04 | 中国矿业大学 | Network integrated and coordinated control system and method for thin coal seam comprehensive mining and gas control |
| CN108798665A (en) * | 2018-05-08 | 2018-11-13 | 中国煤炭科工集团太原研究院有限公司 | A kind of girdle continuous miner |
| CN110630322A (en) * | 2019-10-28 | 2019-12-31 | 陕西开拓建筑科技有限公司 | Thin coal seam coal and gangue separate mining and separate transportation filling mining system and mining method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102943689A (en) * | 2012-11-13 | 2013-02-27 | 河北煤炭科学研究院 | Coal mine bulk stock cut and fill mining method |
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| WO2014090108A1 (en) * | 2012-12-10 | 2014-06-19 | 中国矿业大学 | Solid-filling coal mining method with two pre-excavated tunnels for advancing |
| CN102996131B (en) * | 2012-12-10 | 2014-10-29 | 中国矿业大学 | Solid-filling coal mining method with two pre-excavating tunnels for advancing |
| WO2015058483A1 (en) * | 2013-10-23 | 2015-04-30 | 中国矿业大学 | Method for separately mining and transporting thick coal seam with gangue, and backfilling goaf with gangue |
| CN103726845A (en) * | 2013-12-04 | 2014-04-16 | 山东金阳矿业集团有限公司 | Special device used in explosive mining method |
| WO2015161771A1 (en) * | 2014-04-25 | 2015-10-29 | 中国矿业大学 | Matching method for equipment for solid-filling coal face of coal mine |
| WO2018176892A1 (en) * | 2017-03-31 | 2018-10-04 | 中国矿业大学 | Network integrated and coordinated control system and method for thin coal seam comprehensive mining and gas control |
| CN108798665A (en) * | 2018-05-08 | 2018-11-13 | 中国煤炭科工集团太原研究院有限公司 | A kind of girdle continuous miner |
| CN110630322A (en) * | 2019-10-28 | 2019-12-31 | 陕西开拓建筑科技有限公司 | Thin coal seam coal and gangue separate mining and separate transportation filling mining system and mining method |
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