CN201391334Y - Scraper conveyor for fully-mechanized mining in thin seam - Google Patents
Scraper conveyor for fully-mechanized mining in thin seam Download PDFInfo
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- CN201391334Y CN201391334Y CN200920021509U CN200920021509U CN201391334Y CN 201391334 Y CN201391334 Y CN 201391334Y CN 200920021509 U CN200920021509 U CN 200920021509U CN 200920021509 U CN200920021509 U CN 200920021509U CN 201391334 Y CN201391334 Y CN 201391334Y
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Abstract
The utility model discloses a scraper conveyor for fully-mechanized mining in a thin seam, comprising a head 1, a tail 12, a middle trough 6 and a scraper chain. Medium plates of the head 1 and the tail 12 are horizontally arranged and have an included angle between 0 <+6> and 0<-20> degrees with a medium plate of the middle trough and located at the same height; and scraper running lower chains 4 and 9 of the head 1 and the tail 12 are inverse curved. The bottom of the head 1 and the tail 12 is provided with lifting skid beams 2 and 11 which can adjust the height of the head and the tail, therefore the problems of not leaving the triangle coal at both ends of a fully-mechanized mining face in the thin seam and return coal conveying of the lower chains are solved; a coal milling device at the head and a recovery unit at the tail can solve the problems of poor coal charging effect and recovery and clearing of float coal at both ends of the face of a thin seam shearer, the wide-pitch scraper chain can enable the coal gangue with larger lumpiness to pass through an underframe of the shearer. The scraper conveyor is applicable to fully-mechanized mining in the thin seam for digging the bottom along the top, particularly applicable to fully-mechanized mining in the thin seam containing iron sulfide concretion or/and hard gangue, also applicable to fully-mechanized mining for medium-thickness seam and thick seam.
Description
Technical field
The utility model relates to coal mine fully-mechanized mining equipment drag conveyor, and particularly a kind of being suitable for dug the thin coal bed fully-mechanized mining scraper conveyor that the thin coal bed fully-mechanized mining face in the end is used along the top; It especially is fit to the bigger lump coal of lumpiness, Containing Sulfur ferruginous concretions and/or the thin coal bed fully-mechanized mining face of hard dirt band and uses.
Background technology
Thin coal bed fully-mechanized mining face mining height is little, corollary equipment is many, remarkable space is little.The drag conveyor of tradition Mining Face in Thin Coal Seam, head, tail are higher than intermediate channel, and the middle plate of head, tail is tip-tilted, the shearer haulage device that is installed in this place certain altitude that also will raise.When coal-winning machine ran to head, afterbody, fuselage can raise, and pivot angle also can change under the rocker arm of coal mining machine, thereby caused the cut change in depth of coal-winning machine at this section.Make the coal-winning machine cut produce residual triangle coal and the problem of not adorning coal at the stope two ends.In addition, the existence of chain road retracts a coal problem under the work plane drag conveyor, and is more remarkable for the influence of girdle, especially more outstanding for this problem of back cover formula drag conveyor.
Because the low seam mining machinery fuselage is short, diameter of cylinder is little, the coal mining machine roller effect of loading coal is poor when causing thin seam mining, and the drag conveyor of can not packing into after the raw coal that is positioned at the work plane two ends is cut is in time transported.Coal-winning machine is cut to the float coal that will locate often this position next time and is pushed into the tunnel, can't reclaim.
Summary of the invention
For overcome existing girdle drag conveyor frame head and tail upwarp make coal-winning machine can not cut work plane two ends triangle coal and down the chain road have weak points such as retracting a coal, the utility model provides a kind of thin coal bed fully-mechanized mining scraper conveyor, it can make low seam mining machinery in the coal cutting of stope two ends, do not stay the triangle coal, following chain road does not retract a coal.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
Thin coal bed fully-mechanized mining scraper conveyor is made up of head, tail, intermediate channel, scraper chain etc.The middle plate of its head, tail is horizontal arrangement, with the angle 0 of the middle plate of intermediate channel
+ 6Degree～0
-20Spend, be in sustained height.The following chain road of the scraper plate operation of head, tail is an anti-curve shaped.The liftable poppet of adjusting head, tail height is arranged respectively at head, tail bottom.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted can also be:
The head of thin coal bed fully-mechanized mining scraper conveyor, tail have head slide device for coal, the tail retracting device of cleaning head, tail coal breakage respectively.Its scraper chain adopts accurate double center chain scraper chain, is the double center chain scraper chain of wide chain pitch.The liftable poppet of head, tail is made of poppet pendular body, outer case, internal box and elevating mechanism.
The beneficial effects of the utility model are:
1. can solve the problem that the triangle coal is not stayed at thin coal bed fully-mechanized mining face two ends, and guarantee that head unloading place has good coal space excessively.
2. can solve down the problem that the chain road retracts a coal.
3. the liftable poppet of head, tail can be adjusted the height of head, tail at any time, improve drag conveyor to the tunnel or/and the adaptive capacity of work plane base plate fluctuations.
4. can solve the problem of thin coal bed fully-mechanized mining working surface coal mining machine cylinder effect of loading coal difference, make the float coal at fully-mechanized mining working two ends obtain reclaiming and cleaning.
5. the scraper chain of wide chain pitch can strengthen the chain stripe pitch, and the bastard coal that allows more large degree is by the coal-winning machine bottom bracket.2 of backs are particularly suitable for the needs of the bigger lump coal of lumpiness, Containing Sulfur ferruginous concretions and/or hard dirt band thin coal bed fully-mechanized mining.
Description of drawings
Fig. 1, the 2nd, the structural representation master of the utility model thin coal bed fully-mechanized mining scraper conveyor, vertical view.
Fig. 3, the 4th, structural representation master, the vertical view of head slide device for coal.
Fig. 5, the 6th, the structural representation master of tail retracting device, vertical view.
Fig. 7 is the cross-sectional drawing that accurate double center chain scraper chain is positioned at intermediate channel.
Fig. 8, the 9th, the structural representation master of liftable poppet, lateral view.
Among the figure: the 1-head, 2-head liftable poppet, 3-head section cochain road, chain road under the 4-head section, the 5-coal-winning machine, 6-conveyer intermediate channel, 7-ramp plate or shovel board, 8-shearer haulage mechanism, chain road under the 9-tail, 10-tail cochain road, 11-tail liftable poppet, the 12-tail, 13-fortune lane or transportation lane, the 14-elevating conveyor, 15-head fixed dam, the 16-hydraulic jack, 17-head telescopic baffle, the 18-coupling components, the 19-work plane, the 20-tail bent plate that stretches, 21-tail telescopic baffle, the hydraulic jack of 22-secondary telescoping mechanism, the hydraulic jack of 23-one-level telescoping mechanism, 24-tail fixed dam, 25-air way or return airway, the 26-coupling components, the 27-cylinder, 28-round-link chain or chain, 29 and 30-cross coal space I and II, 31-coal-winning machine bottom bracket, 32-poppet pendular body, 33-poppet outer case, 34-poppet internal box, the 35-hydraulicefficiency elevation structure, the double-stranded center to center distance of M-.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Composition at the utility model thin coal bed fully-mechanized mining scraper conveyor shown in Fig. 1,2.It is the drag conveyor of the straight layout of plate in a kind of head, the tail, mainly is made of head 1, tail 12, intermediate channel 6, scraper chain etc.
1. the straight layout of middle plate of the head of drag conveyor, tail:
1. in the whole laying length of drag conveyor, the middle plate of its head 1, tail 12 and the middle plate of intermediate channel 6 are horizontal arrangement, are in sustained height, remain consistent the layout.The angle of plate serves as preferred with about zero degree in the middle plate of head 1, tail 12 and the intermediate channel 6, can have+upper uplifting angles of 6 degree are to the angles of descent of-20 degree.Upwarp angle less than universal drag conveyor, generally be not more than+8 the degree, head is a little more than intermediate channel, still applicable to thin seam mining in this scope; The decline angle can be to-20 degree, and this moment, the conveyer head was lower than intermediate channel, can adapt to thin seam mining well.
The advantage of this layout is to make the haulage gear 8 that is installed in coal-winning machine 5 on the drag conveyor, be rack rails, chain rail etc., keep straight layout, avoid top top board on the frame head and tail, guarantee that coal-winning machine move in entire working surface that pivot angle is constant under constant, the cylinder of height degree on opportunity, the cut degree of depth is constant, solution thin coal bed fully-mechanized mining cut work plane two ends triangle coal and head unloading place the coal space problem.
2. the scraper plate of head 1, tail 12 moves chain road the 4, the 9th down, anti-curve shaped.Scraper chain has a process that rises along base plate before entering down chain road 4 through the head sprocket wheel, and each scraper plate operates in this Duan Shiyu base plate and collides, and shakes and skids off along head sticking to raw coal on the scraper chain.The chain road retracts a coal under this structure decrease drag conveyor, and is particularly outstanding for the advantage of this structure of back cover formula drag conveyor.If it is too much that the drag conveyor end chain of back cover structure retracts a coal, the distortion of base plate or middle plate can take place, outwards protrude, cause the The middle pan of scraper conveyor damage.
3. arrangement: head 1, tail 12 and lead-over groove are arranged in up and down in the crossheading fully, do not need to increase planted agent's amount of coal-winning machine.
4. increase the coal space excessively that drag conveyor is positioned at head, simplify the equipment configuration at head, tail place.
5. head 1, tail 12 have liftable poppet 2,11 respectively, can adjust the height of scraper plate head 1, tail 12 at any time, improve the scraper plate machine to the tunnel or/and the adaptive capacity of work plane base plate fluctuations.
All the other have among the figure: the following chain road 9 and the cochain road 10 of head section cochain road 3 and following chain road 4, tail.
2. head slips device for coal:
Structure at the slide of head shown in Fig. 3,4 device for coal.This device is used near the raw coal that work plane is positioned at the conveyer head is transported to elevating conveyor, solves the problem that float coal that work plane is in the fortune heading falls into the tunnel.
1. head slips device for coal and is installed in shovel board 7 one sides of conveyer head 1 by coupling components 18, and its structure is a telescopic slot-type device, with 14 one-tenths certain inclination angles of elevating conveyor layout in stope 19 and fortune lane 13, is convenient to a raw coal landing thereon.Head slide device for coal is made up of fixed dam 15, telescopic baffle 17, hydraulic jack 16 etc.Telescopic baffle 17 can be moved back and forth on fixed dam 15 slideways by hydraulic jack 16 controls.Except constituting hydraulic telescopic machanism, also can adopt other mechanical type telescoping mechanism by hydraulic jack.As the telescoping mechanism that constitutes by leading screw, screw etc.
2. head slips the device for coal course of work: start telescoping mechanism 16 coal-winning machine 5 moves to conveyer head 1 before telescopic baffle 17 is docked with the side, tunnel, the continuous flute profile passage of formation between work plane side and elevating conveyor 14; Near coal-winning machine 5 moves to drag conveyor head 1 during coal cutting, the part raw coal collapses and falls to falling into head and slip device for coal, slips device for coal along head and slips into elevating conveyor 14.
3. head slide device for coal is particularly useful for thin coal bed fully-mechanized mining.Because the low seam mining machinery fuselage is short, diameter of cylinder is little, the cylinder effect of loading coal is poor; And coal mining machine roller is reverse rotation, and near the drag conveyor of can't packing into of a large amount of raw coal under being cut the conveyer head also can be dished out laterally by cylinder.Or/and coal-winning machine when being cut to this position next time, this place's raw coal is pushed to the tunnel when moving conveyor, can only the labor cleaning, recovery.Use head to slip device for coal, realized that the mechanization of thin seam working surface head coalings.
3. tail retracting device:
Structure at tail retracting device shown in Fig. 5,6.This device cooperates with coal mining machine roller 27, is used near the raw coal that work plane 19 is positioned at the conveyer tail 12 are loaded into conveyer, solves the problem that float coal that work plane is in air way 25 1 ends falls into the tunnel.
1. the structure of tail retracting device is a telescopic slot-type device, is installed in the side that conveyer tail 12 has shovel board 7 by coupling components 26.
The tail retracting device is made up of fixed dam 24, telescopic baffle 21, flexible bent plate 20, two-stage hydraulic telescopic machanism and coupling components 26 etc.Telescopic baffle 21 is positioned at fixed dam 24, the hinged one-level hydraulic jack 23 of mechanism that contracts between the two; Flexible bent plate 20 is positioned at telescopic baffle 21, the hydraulic jack 22 of hinged secondary telescoping mechanism between the two, and flexible bent plate 20 and telescopic baffle 21 can be moved back and forth on the slideway of fixed dam 24 by hydraulic telescopic machanism control.
Be positioned at the terminal flexible bent plate 20 of groove, and form arc passage of coalingging between the coal mining machine roller 27; The raw coal of pressure between cylinder 27 and flexible bent plate 20 is thrown into chute along cylinder 27 helixes.
Same with head slide device for coal, the two-stage telescoping mechanism also can adopt other mechanical type telescoping mechanism except constituting hydraulic telescopic machanism by hydraulic jack.
2. the course of work of tail retracting device: the hydraulic jack 23 that starts the one-level telescoping mechanism before coal-winning machine moves to the conveyer tail docks telescopic baffle 21 with air way 25 sides; The coal-winning machine coal cutting is exercised to drag conveyor tail stopping means place, and coal mining machine roller 27 and part raw coal collapse and drop in the channel section of tail retracting device; Rocker arm of coal mining machine is reduced to maximum planted agent, and the distance that the hydraulic jack 22 of startup secondary telescoping mechanism reduces flexible bent plate 20 and coal mining machine roller 27 is 100 to 200 millimeters, forces to be positioned at their middle raw coal and is thrown into drag conveyor.
The scraper chain of the drag conveyor double center chain scraper chain that is as the criterion, or claim the double center chain scraper plate of wide chain pitch.The center to center distance M of two chains of scraper chain is between the chain pitch of double center chain and limit two strands.
4. adopt accurate double center chain scraper chain form:
Accurate double center chain scraper chain shown in Figure 7 is positioned at the structure of intermediate channel 6.It is the center to center distance M increasing with two round-link chains 28 of scraper chain, makes it between the double-stranded reference center distance of double center chain and limit.
1. compare with the double-stranded scraper chain form in limit, two round-link chains 28 are positioned at the outside, ledge upper edge, can strengthen the chain specification under the situation that does not increase the The middle pan of scraper conveyor height.
2. during thin seam mining, after two chain center to center distance M strengthen, the coal-winning machine bottom cross coal space I (29) though become, cross coal space II (30) and strengthen, allow larger sized lump coal by coal-winning machine bottom bracket 31.
5. liftable poppet:
Structure at the liftable poppet of head shown in Fig. 8,9, tail.This lifting of device by poppet changes the height of drag conveyor head, tail, thereby conveyer head, tail keep level with the conveyer intermediate channel all the time when realizing at the bottom of the relative tunnel of fully-mechanized mining working height change.
1. the liftable poppet is made up of poppet pendular body 32, poppet outer case 33, poppet internal box 34 and hydraulicefficiency elevation structure.Poppet pendular body 32 is installed in the conveyer tail or/and the bottom surface of tail, and its lower end and poppet outer case 33 tops are hinged, but counter piece out of frame box body 33 turns an angle.Poppet outer case 33 is sleeved on the poppet internal box 34, and can move up and down along the guide rail of poppet internal box 33, and its operation power and position are provided by hydraulicefficiency elevation structure.Hydraulicefficiency elevation structure is made up of two hydraulic jacks 35 that are articulated between poppet internal box 34, the outer case 33; Two oil cylinders 35 lay respectively at the both sides of the inside and outside casing 34,33 of poppet.Hydraulicefficiency elevation structure provides the power of adjusting the poppet height and lock poppet with securing member after adjustment is finished.The base plate of poppet internal box 34 is placed on the bottom surface, tunnel, and its base plate two ends have drawing that mobile poppet uses to move or pass otic placode.
Elevating mechanism between poppet outer case 33 and the internal box 34 also can adopt other mechanical adjustment mechanism, for example is made of screw, leading screw, handwheel etc.
The course of work of liftable poppet: when opposite working bottom surface, tunnel height changes, the conveyer head is or/and tail can not be not consistent with the conveyer intermediate channel time, open the locking piece of hydraulicefficiency elevation structure, the primer fluid cylinder pressure increases or reduces the distance of outer case in the poppet; After being in the height of requirement to conveyer head or tail, the locking poppet.In the head lifting process, the poppet pendular body is adjusted the angle of conveyer head or tail and poppet automatically.
3. the liftable poppet solved fully-mechanized mining working or and the conveyer head that causes of tunnel fluctuations or/and the scraggly problem of tail, both helped the processing of frame head and tail triangle coal, can make the drag conveyor complete machine be in level all the time again, the excessive damage of avoiding the conveyer head or/and tail rises and falls.
The utility model drag conveyor is applicable to along the thin coal bed fully-mechanized mining face of top pick end exploitation, is particularly useful for the bigger lump coal of lumpiness, Containing Sulfur ferruginous concretions and/or the hard thin coal bed fully-mechanized mining face of dirt band.The drag conveyor of this form of structure can be used for medium-thickness seam, high seam fully-mechanized mining working equally.
Claims (6)
1. a thin coal bed fully-mechanized mining scraper conveyor comprises head, tail, intermediate channel, scraper chain, it is characterized in that: the middle plate of said head (1), tail (12) is horizontal arrangement, with the angle of the middle plate of intermediate channel (6) be 0
+ 6Degree～0
-20Spend, be in sustained height; The following chain road (4,9) of the scraper plate operation of head (1), tail (12) is an anti-curve shaped; The liftable poppet (2,11) of adjusting head, tail height is arranged respectively at the bottom of head (1), tail (12).
2. thin coal bed fully-mechanized mining scraper conveyor according to claim 1 is characterized in that: said head (1) has head slide device for coal and/or tail (12) that the tail retracting device is arranged;
Head slide device for coal is contained in conveyer head (1) shovel board side, is a telescopic slot-type device, is to be in tilted layout between work plane and elevating conveyor, comprises fixed dam (15), telescopic baffle (17), telescoping mechanism; Fixed dam (15) is fixed on head shovel board side by link (18), telescoping mechanism be connected in fixed dam (15), telescopic baffle (17) between; Telescopic baffle (17) can be along on the slideway of fixed dam, reciprocatingly slide by rib under telescoping mechanism control;
The tail retracting device is contained in conveyer tail (12) shovel board side, is a telescopic slot-type device, comprises fixed dam (24), telescopic baffle (21), flexible bent plate (20), two telescoping mechanisms of firsts and seconds; Fixed dam (24) is fixed on tail (12) shovel board side by coupling components (26); The one-level telescoping mechanism is connected between fixed dam (24), the telescopic baffle (21), the secondary telescoping mechanism is connected between telescopic baffle (21) and the flexible bent plate (20), and telescopic baffle (21) and flexible bent plate (20) can reciprocatingly slide along the slideway of fixed dam (24) under telescoping mechanism control; Telescopic baffle (21) and flexible bent plate (20) can move back and forth at the slideway that telescoping mechanism is controlled lower edge fixed dam (24); Be the arc passage of coalingging between flexible bent plate (20) and the coal mining machine roller (27).
3. thin coal bed fully-mechanized mining scraper conveyor according to claim 2 is characterized in that: the telescoping mechanism of said head slide device for coal is a hydraulic telescopic machanism, and its hydraulic jack (16) is articulated between the bottom surface of fixed dam (15), telescopic baffle (17);
The one-level telescoping mechanism of said tail retracting device is a hydraulic telescopic machanism, and its hydraulic jack (23) is articulated between fixed dam (24), telescopic baffle (21) bottom surface; The secondary telescoping mechanism is a hydraulic telescopic machanism, and its hydraulic jack (22) is articulated between telescopic baffle (21) and flexible bent plate (20) bottom surface.
4. thin coal bed fully-mechanized mining scraper conveyor according to claim 1 is characterized in that: said scraper chain be as the criterion the double center chain scraper chain, be the double center chain scraper chain of wide chain pitch; The center to center distance (M) of two round-link chains (28) of scraper chain is between the chain pitch of double center chain and limit two strands.
5. thin coal bed fully-mechanized mining scraper conveyor according to claim 1 is characterized in that: said liftable poppet comprises poppet pendular body (32), poppet outer case (33), poppet internal box (34) and elevating mechanism; Poppet pendular body (32) end face is fixed on conveyer head or tail bottom surface, and its lower end and poppet outer case (33) are hinged, and poppet outer case (33) is enclosed within outside the poppet internal box (34), and elevating mechanism is connected between the two; Under the elevating mechanism effect, poppet outer case (33) can slide up and down along poppet internal box (34); The base plate two ends of poppet internal box (34) are drawn and are moved or pass otic placode.
6. thin coal bed fully-mechanized mining scraper conveyor according to claim 5 is characterized in that: said elevating mechanism is a hydraulicefficiency elevation structure, and its hydraulic jack (35) is articulated between poppet outer case (33), the poppet internal box (34).
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| Application Number | Priority Date | Filing Date | Title |
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| CN200920021509U CN201391334Y (en) | 2009-04-22 | 2009-04-22 | Scraper conveyor for fully-mechanized mining in thin seam |
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|---|---|---|---|
| CN200920021509U CN201391334Y (en) | 2009-04-22 | 2009-04-22 | Scraper conveyor for fully-mechanized mining in thin seam |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011587A (en) * | 2010-11-09 | 2011-04-13 | 枣庄矿业集团付村煤业有限公司 | Method for mining coal on irregular fully-mechanized working surface |
| CN102094646A (en) * | 2010-11-18 | 2011-06-15 | 新汶矿业集团有限责任公司协庄煤矿 | Process process for comprehensively mining extra-hard inter-band coal seams with complex texture |
| CN102826339A (en) * | 2012-08-31 | 2012-12-19 | 新乡市振源机械设备有限责任公司 | Multifunctional scraper conveyer |
| CN102966351A (en) * | 2012-11-12 | 2013-03-13 | 三一重型装备有限公司 | Limiting device of coal cutter and scraper conveyer with same |
| CN101871360B (en) * | 2009-04-22 | 2013-03-27 | 兖州煤业股份有限公司 | Thin coal bed fully-mechanized mining scraper conveyor |
| CN104343451A (en) * | 2013-08-08 | 2015-02-11 | 王洪伟 | Conveyor |
| CN105019939A (en) * | 2015-08-04 | 2015-11-04 | 山西晋城无烟煤矿业集团有限责任公司 | Fully-mechanized coal mining face conveying process |
| CN105089666A (en) * | 2015-08-20 | 2015-11-25 | 宁夏天地奔牛实业集团有限公司 | Length changeable scraper conveyer applicable to coal mining on coal mine edge |
| CN105151660A (en) * | 2015-07-28 | 2015-12-16 | 兖州煤业股份有限公司 | Flat middle plate scraper conveyor head |
| CN105569725A (en) * | 2015-10-08 | 2016-05-11 | 山西晋城无烟煤矿业集团有限责任公司 | Fully mechanized coal mining face transportation process |
| CN105600348A (en) * | 2016-02-29 | 2016-05-25 | 兖州煤业股份有限公司 | Cross side discharging type scraper conveyor and headframe thereof |
| CN109436674A (en) * | 2018-12-10 | 2019-03-08 | 宁夏天地奔牛实业集团有限公司 | Distribution Warehouse drag conveyor extension type tail |
| CN110118083A (en) * | 2019-05-24 | 2019-08-13 | 北京天地华泰矿业管理股份有限公司 | A kind of method of fully-mechanized mining working coal pillar recovery |
| CN111810149A (en) * | 2020-07-13 | 2020-10-23 | 神华神东煤炭集团有限责任公司 | Lifting and lying control method for ultra-large mining height fully-mechanized coal mining face, storage medium and electronic equipment |
| CN114684563A (en) * | 2022-03-16 | 2022-07-01 | 江苏徐矿能源股份有限公司张双楼煤矿 | Coal conveying system of stope face without belt lane |
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- 2009-04-22 CN CN200920021509U patent/CN201391334Y/en not_active Expired - Lifetime
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| CN101871360B (en) * | 2009-04-22 | 2013-03-27 | 兖州煤业股份有限公司 | Thin coal bed fully-mechanized mining scraper conveyor |
| CN102011587A (en) * | 2010-11-09 | 2011-04-13 | 枣庄矿业集团付村煤业有限公司 | Method for mining coal on irregular fully-mechanized working surface |
| CN102094646A (en) * | 2010-11-18 | 2011-06-15 | 新汶矿业集团有限责任公司协庄煤矿 | Process process for comprehensively mining extra-hard inter-band coal seams with complex texture |
| CN102826339A (en) * | 2012-08-31 | 2012-12-19 | 新乡市振源机械设备有限责任公司 | Multifunctional scraper conveyer |
| CN102826339B (en) * | 2012-08-31 | 2014-12-17 | 新乡市振源机械设备有限责任公司 | Multifunctional scraper conveyer |
| CN102966351A (en) * | 2012-11-12 | 2013-03-13 | 三一重型装备有限公司 | Limiting device of coal cutter and scraper conveyer with same |
| CN104343451A (en) * | 2013-08-08 | 2015-02-11 | 王洪伟 | Conveyor |
| CN105151660A (en) * | 2015-07-28 | 2015-12-16 | 兖州煤业股份有限公司 | Flat middle plate scraper conveyor head |
| CN105019939A (en) * | 2015-08-04 | 2015-11-04 | 山西晋城无烟煤矿业集团有限责任公司 | Fully-mechanized coal mining face conveying process |
| CN105089666B (en) * | 2015-08-20 | 2017-11-07 | 宁夏天地奔牛实业集团有限公司 | A kind of change length drag conveyor suitable for colliery edge coal mining |
| CN105089666A (en) * | 2015-08-20 | 2015-11-25 | 宁夏天地奔牛实业集团有限公司 | Length changeable scraper conveyer applicable to coal mining on coal mine edge |
| CN105569725A (en) * | 2015-10-08 | 2016-05-11 | 山西晋城无烟煤矿业集团有限责任公司 | Fully mechanized coal mining face transportation process |
| CN105600348A (en) * | 2016-02-29 | 2016-05-25 | 兖州煤业股份有限公司 | Cross side discharging type scraper conveyor and headframe thereof |
| CN109436674A (en) * | 2018-12-10 | 2019-03-08 | 宁夏天地奔牛实业集团有限公司 | Distribution Warehouse drag conveyor extension type tail |
| CN109436674B (en) * | 2018-12-10 | 2024-04-19 | 宁夏天地奔牛实业集团有限公司 | Telescopic tail for scraper conveyor of matched bin |
| CN110118083A (en) * | 2019-05-24 | 2019-08-13 | 北京天地华泰矿业管理股份有限公司 | A kind of method of fully-mechanized mining working coal pillar recovery |
| CN110118083B (en) * | 2019-05-24 | 2024-02-13 | 北京天地华泰矿业管理股份有限公司 | Method for recycling coal pillar on fully-mechanized coal mining face |
| CN111810149A (en) * | 2020-07-13 | 2020-10-23 | 神华神东煤炭集团有限责任公司 | Lifting and lying control method for ultra-large mining height fully-mechanized coal mining face, storage medium and electronic equipment |
| CN111810149B (en) * | 2020-07-13 | 2022-05-20 | 神华神东煤炭集团有限责任公司 | Lifting and lying control method for fully mechanized mining face with super-large mining height, storage medium and electronic equipment |
| CN114684563A (en) * | 2022-03-16 | 2022-07-01 | 江苏徐矿能源股份有限公司张双楼煤矿 | Coal conveying system of stope face without belt lane |
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