CN109944624A - Coal mine solid waste fills hydraulic support - Google Patents

Coal mine solid waste fills hydraulic support Download PDF

Info

Publication number
CN109944624A
CN109944624A CN201910368402.XA CN201910368402A CN109944624A CN 109944624 A CN109944624 A CN 109944624A CN 201910368402 A CN201910368402 A CN 201910368402A CN 109944624 A CN109944624 A CN 109944624A
Authority
CN
China
Prior art keywords
solid waste
workbench
hydraulic support
coal mine
drag conveyor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910368402.XA
Other languages
Chinese (zh)
Inventor
王晓利
赵浩亮
石景帅
刘忠平
王德勇
常庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi Lanshan Heavy Engineering Technology Co Ltd
Original Assignee
Shaanxi Lanshan Heavy Engineering Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shaanxi Lanshan Heavy Engineering Technology Co Ltd filed Critical Shaanxi Lanshan Heavy Engineering Technology Co Ltd
Priority to CN201910368402.XA priority Critical patent/CN109944624A/en
Publication of CN109944624A publication Critical patent/CN109944624A/en
Pending legal-status Critical Current

Links

Landscapes

  • Ship Loading And Unloading (AREA)

Abstract

The invention discloses coal mine solid waste to fill hydraulic support, including pedestal, it is connect by multiple telescopic columns with top beam on pedestal, four-bar mechanism is also connected between pedestal and top beam, top beam front end is connected with face guard, pedestal is equipped with liftable gangue stopping device, gangue stopping device is connect at least through a jack with pedestal, gangue stopping device top is connected with workbench, workbench surface is provided with material through hole, drag conveyor is provided on workbench, discharge port is provided in the stripper cell of drag conveyor, the rear end of the gangue stopping device of workbench is connected with rear position margining plate, top beam rear end is hinged with tail boom, oil cylinder is also connected between top beam and tail boom simultaneously, tail boom is mutually overlapped with rear position margining plate.The invention patent solves coal mining in the prior art and is unable to parallel operations with filling, and safety is poor, and drag conveyor installation uses and overhaul inconvenience, light-duty drag conveyor can only be used, support stability is poor, and working face layout is low, pack effectiveness is low, solid waste processing capacity finiteness problem.

Description

Coal mine solid waste fills hydraulic support
Technical field
The invention belongs to coal mine filling mining hydraulic bracket technical fields, and in particular to a kind of coal mine solid waste filling Hydraulic support.
Background technique
Currently, coal in China exploitation, washing, spoil, coal slime, the flyash generated in power generation process, coal chemical industry production is produced The solid waste such as raw waste residue are generally all deposited in ground, these solid waste land occupations, pollute environment, need this A little solid waste carry out returning well filling, realize that coal mine detracts green filling mining.
In existing dry packing production technique, working face mostly uses Patent No. " ZL200720034249.X ", title Filling mining is carried out for " filling mining hydraulic support ", there are the following problems for the bracket: (1) filling that general dry packing uses Bracket all suspends light-duty drag conveyor in midair under its top beam tail portion, and when coal mining moves frame, drag conveyor goes up and down with top beam, moves forward not It can be carried out material filling, that is, mine and be unable to parallel operations with filling, filling is unable to parallel operations with coal mining, leads to working face layout Small, pack effectiveness is low;(2) filling bracket tail portion not can guarantee operating personnel and equipment safety without safety device;(3) it scrapes Plate conveyer is suspended under tail boom, is unfavorable for drag conveyor installation, is used and overhaul;(4) light-duty scrape can only be suspended under tail boom in midair Plate conveyer, drag conveyor limited length, transport capacity is small, and stowage capacity is limited;(5) drag conveyor is suspended in tail boom Under, bracket center of gravity is high, and support stability is poor.
Summary of the invention
The object of the present invention is to provide a kind of coal mine solid waste fill hydraulic support, solve in the prior art mine with Filling is unable to parallel operations, and safety is poor, and drag conveyor installation uses and overhaul inconvenience, can only be conveyed using light-duty scraper plate Machine, support stability is poor, and working face layout is low, and pack effectiveness is low, the limited problem of solid waste processing capacity.
The technical scheme adopted by the invention is that coal mine solid waste fills hydraulic support, including pedestal, lead on pedestal It crosses multiple telescopic columns to connect with top beam, four-bar mechanism is connected between pedestal and top beam, top beam front end is flexibly connected There is face guard, pedestal is equipped with liftable gangue stopping device, and gangue stopping device is connect at least through a jack with pedestal, keeps off cash Device top is connected with workbench, and material through hole is provided on workbench, is provided with drag conveyor on workbench, Discharge port is provided in the stripper cell of drag conveyor, the rear end of workbench is connected with rear position margining plate, and top beam rear end is hinged with Tail boom, while oil cylinder is also connected between top beam and tail boom, tail boom is mutually overlapped with rear position margining plate.
The features of the present invention also characterized in that
The front end of the gangue stopping device of workbench is connected with front limit plate, and the height of front limit plate is not higher than drag conveyor Top.
Top of the height of rear position margining plate not less than drag conveyor and the bottom not higher than top beam.
The width of workbench is not less than twice of scraper conveyor scraper groove width.
Rear position margining plate is located on the inside of the lower section of tail boom rear end.
The discharge port of drag conveyor is located at right above workbench material through hole and communicates therewith, material through hole Section is greater than drag conveyor discharge port, and the width of material through hole is not less than the width of drag conveyor discharge port.
Workbench is connect by multiple bearing diagonals with gangue stopping device.
Discharge port is provided with the sealing plate with telescopic oil cylinder, is stretched by oil cylinder to open and be closed discharge port.
At least provided with a pair of of otic placode, the telescopic end of jack is fixed on corresponding a pair of of otic placode for the side of gangue stopping device On, the other end of jack is fixed on bracket base.
The downside of tail boom is inclined-plane, and the upper edge on inclined-plane and rear position margining plate mutually overlaps.
The beneficial effects of the present invention are:
(1) present invention has invented coal mine solid waste filling hydraulic support, and drag conveyor, which is located at, to be connected with pedestal On workbench, crane does not generate the vertical displacement of drag conveyor with frame is moved.Drag conveyor after workbench with limiting Plate Forward realizes coal mining and filling parallel operations.
(2) coal mine solid waste of the present invention fills hydraulic support, and filling hydraulic support is equipped with tail boom, and tail boom and work are flat Platform rear position margining plate overlap joint, tail boom, rear position margining plate and gangue stopping device are collectively formed security protection system, effectively block goaf and collapse Spoil is fallen, ensure that operating personnel and equipment safety.
(3) coal mine solid waste of the present invention fills hydraulic support, controls workbench lifting by jack, adjustment is scraped Plate conveyer height, while front limit plate is not higher than drag conveyor, drag conveyor installation is used and is overhauled conveniently.
(4) coal mine solid waste of the present invention fills hydraulic support, and drag conveyor is erected at filling hydraulic support foundation On, bracket center of gravity is reduced, bracket stable is conducive to.
(5) coal mine solid waste of the present invention fills hydraulic support, and drag conveyor is erected at the frame being connected with pedestal On arrangement works platform, heavy scraper conveyor can be used, transport capacity is big, and stowage capacity is high, meets large-scale modernization mine The requirement of well scale filling mining.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of coal mine solid waste filling hydraulic support of the present invention;
Fig. 2 is the structural schematic diagram of the workbench of coal mine solid waste filling hydraulic support of the present invention.
1. pedestal, 2. columns, 3. top beams, 4. four-bar mechanisms, 5. gangue stopping devices, 6. workbenches, 7. drag conveyors, 8. tail boom, 9. front limit plates, 10. rear position margining plates, 11. jack, 12. discharge ports, 13. face guards, 14. otic placodes, 15. materials are logical Via hole.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Coal mine solid waste of the present invention fills hydraulic support, as shown in Figure 1, including pedestal 1, passes through on pedestal 1 multiple Telescopic column 2 is connect with top beam 3, and four-bar mechanism 4 is also connected between pedestal 1 and top beam 3, and 3 front end activity of top beam connects It is connected to face guard 13, pedestal 1 is equipped with liftable gangue stopping device 5, and gangue stopping device 5 is at least through a jack 11 and pedestal 1 connection, at least provided with a pair of of otic placode 14, the other end of jack 11 is fixed on bracket base 1 for the side of gangue stopping device 5, The telescopic end of jack 11 is fixed on corresponding a pair of of otic placode 14, and 5 top of gangue stopping device is connected with workbench 6, and work is flat 6 surface of platform is provided with material through hole 15, is provided with drag conveyor 7 on workbench 6, in the stripper cell of drag conveyor 7 It is provided with discharge port 12, discharge port 12 is provided with the sealing plate with telescopic oil cylinder, is stretched by oil cylinder to open and be closed discharging Mouth 12, the rear end of the gangue stopping device 5 of workbench 6 is connected with rear position margining plate 10, and 3 rear end of top beam is hinged with tail boom 8, while top beam Oil cylinder is also connected between 3 and tail boom 8, tail boom 8 is overlapped with 10 phase of rear position margining plate.
6 front end of workbench is connected with front limit plate 9, and the height of front limit plate 9 is not higher than the top of drag conveyor 7; Front limit plate 9 can prevent drag conveyor 7 from falling when sliding, guarantee drag conveyor 7 always on workbench 6, and with There are certain space between top beam 3 and tail boom 8, safeguarded convenient for staff and maintenance work.
Top of the height of rear position margining plate 10 not less than drag conveyor 7 and the top not higher than top beam 3.
Width between the front limit plate and rear position margining plate of workbench 6 is not less than 7 scraper plate groove width of drag conveyor Twice, drag conveyor 7 can be made to have certain space to be slid and adjusted.
Rear position margining plate 10 is located on the inside of the lower section of 8 rear end of tail boom, can play a supportive role to tail boom 8, prevent tail boom 8 It is pressed onto drag conveyor 7, the height of rear position margining plate 10 is not higher than the bottom of top beam 3, tail boom 8 can be made to tilt, formed certain The gradient, convenient for the landing of spoil.
Workbench 6 is equipped with material through hole 15, and 7 discharge port 12 of drag conveyor is located at right above 15 and joins with it Logical, the section of material through hole 15 is greater than 7 discharge port 12 of drag conveyor, and the width of material through hole 15 is conveyed not less than scraper plate The width of 7 discharge port 12 of machine.
Workbench 6 is connect by multiple bearing diagonals with gangue stopping device 5, and the stability of workbench 6 can be increased.
The downside of tail boom 8 is inclined-plane, and the upper edge on inclined-plane and rear position margining plate 10 mutually overlaps.
When work, according to filling and exploiting requirements of one's work, by 11 liters of jack or drop gangue stopping device 5, keep work flat Platform 6 reaches the height needed, and the solid waste such as spoil are transported to drag conveyor 7, opened by the position of fixed workbench 6 Discharge port 12, then the solid waste such as spoil are fills up to goaf by the workbench 6 of discharge port 12 and frame structure, the portion Position filling after the completion of, move forward the present invention filling hydraulic support, then drag conveyor 7 under the promotion of rear position margining plate 10, while It moves forward on workbench 6, then continues filling operation.
The present invention is provided with workbench 6, and has material through hole 15, can be in conjunction with the discharge port of drag conveyor 7 12, discharging is carried out, completes filling operation, and structure is steady, can be realized coal mining and filling parallel operations;Be provided with tail boom 8 and It is overlapped with rear position margining plate 10, forms certain gradient, be convenient for roof collapse, spoil etc. slides, and to drag conveyor 7 and work Personnel are protected, and can be improved safety;The height of front limit plate 9 is not higher than the top of drag conveyor 7, is convenient for Maintenance work;A kind of coal mine solid waste of the invention fills hydraulic support, and pack effectiveness is high, and working face layout is big.

Claims (10)

1. coal mine solid waste fills hydraulic support, including pedestal (1), pass through on the pedestal (1) multiple telescopic vertical Column (2) is connect with top beam (3), is also connected with four-bar mechanism (4) between the pedestal (1) and top beam (3), the top beam (3) Front end is connected with face guard (13), which is characterized in that the pedestal (1) is equipped with liftable gangue stopping device (5), described Gangue stopping device (5) is connect at least through a jack (11) with pedestal (1), and gangue stopping device (5) top is connected with work Platform (6) is provided with material through hole (15) on the workbench (6), and scraper plate conveying is provided on the workbench (6) Machine (7) is provided with discharge port (12) in the stripper cell of the drag conveyor (7), and the rear end of the workbench (6) is connected with Rear position margining plate (10), top beam (3) rear end is hinged with tail boom (8), while being also connected with oil cylinder, tail between top beam (3) and tail boom (8) Beam (8) is mutually overlapped with rear position margining plate (10).
2. coal mine solid waste according to claim 1 fills hydraulic support, which is characterized in that the workbench (6) front end is connected with front limit plate (9), and the height of the front limit plate (9) is not higher than the top of drag conveyor (7).
3. coal mine solid waste according to claim 1 fills hydraulic support, which is characterized in that the rear position margining plate (10) top of the height not less than drag conveyor (7) and the bottom not higher than top beam (3).
4. coal mine solid waste according to claim 1 fills hydraulic support, which is characterized in that the workbench (6) width is not less than twice of the scraper plate groove width of drag conveyor (7) between front and back postive stop baffle.
5. coal mine solid waste according to claim 1 fills hydraulic support, which is characterized in that the rear position margining plate (10) on the inside of the lower section of the tail boom (8) rear end.
6. coal mine solid waste according to claim 1 fills hydraulic support, which is characterized in that the drag conveyor (7) discharge port (12) is located at right above material through hole (15) and communicates therewith, and the section of material through hole (15), which is greater than, to be scraped Plate conveyer (7) discharge port (12), the width of material through hole (15) are not less than the width of drag conveyor (7) discharge port (12) Degree.
7. coal mine solid waste according to claim 1 fills hydraulic support, which is characterized in that the workbench (6) it is connect by multiple bearing diagonals with gangue stopping device (5).
8. coal mine solid waste according to claim 1 fills hydraulic support, which is characterized in that the discharge port (12) It is provided with the sealing plate with telescopic oil cylinder, for opening and being closed discharge port (12).
9. coal mine solid waste according to claim 1 fills hydraulic support, which is characterized in that the gangue stopping device (5) at least provided with a pair of of otic placode (14), the telescopic end of the jack is fixed on corresponding a pair of of otic placode (14) for side, The other end of jack (11) is fixed on bracket base (1).
10. coal mine solid waste according to claim 1 fills hydraulic support, which is characterized in that the tail boom (8) Downside is inclined-plane, and the upper edge on the inclined-plane and rear position margining plate (10) mutually overlaps.
CN201910368402.XA 2019-05-05 2019-05-05 Coal mine solid waste fills hydraulic support Pending CN109944624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910368402.XA CN109944624A (en) 2019-05-05 2019-05-05 Coal mine solid waste fills hydraulic support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910368402.XA CN109944624A (en) 2019-05-05 2019-05-05 Coal mine solid waste fills hydraulic support

Publications (1)

Publication Number Publication Date
CN109944624A true CN109944624A (en) 2019-06-28

Family

ID=67017014

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910368402.XA Pending CN109944624A (en) 2019-05-05 2019-05-05 Coal mine solid waste fills hydraulic support

Country Status (1)

Country Link
CN (1) CN109944624A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114233359A (en) * 2022-01-24 2022-03-25 中煤能源研究院有限责任公司 Caving type gangue filling hydraulic support and filling method

Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1418075A (en) * 1972-02-28 1975-12-17 Charbonnages De France Self advancing support device for coal and ore extraction works
FR2503788A1 (en) * 1981-04-09 1982-10-15 Uholne A Lignitove Bane Koncer SUPPORT UNIT FOR OPERATION BY BENCHES OR WITH CUT TO THE ROOF OF A COAL LAYER OR OTHER ORE
DE4130825A1 (en) * 1991-09-17 1993-03-18 Westfalia Becorit Ind Tech Advancing mine roof support - has hinge connected roof and floor members with hydraulic cylinders, followed by working face protection unit
RU2026982C1 (en) * 1992-03-26 1995-01-20 Шахтинский филиал Новочеркасского политехнического института Shaft-sinking set
CN1873188A (en) * 2005-05-30 2006-12-06 佟强 Hydraulic support for filling waste rock
CN201007216Y (en) * 2007-02-06 2008-01-16 中国矿业大学 Mining with filling hydraulic support
CN101487395A (en) * 2009-02-24 2009-07-22 辽宁天安矿山科技有限公司 Template support for filling after support
CN201539274U (en) * 2009-12-04 2010-08-04 沈阳市华祥矿山机械厂 Tank type filling hydraulic support
CN101793159A (en) * 2010-03-19 2010-08-04 中国矿业大学 Dam-type filling hydraulic bracket in mined-out region
CN102434182A (en) * 2011-12-31 2012-05-02 山东科技大学 Filling hydraulic bracket with automatic bag overturning mechanism
CN202325590U (en) * 2011-11-22 2012-07-11 徐州中矿大贝克福尔科技有限公司 Filling hydraulic support frame for backfill of coal mine
CN102704978A (en) * 2012-06-29 2012-10-03 中国矿业大学 High fully mechanized filling, mining and screening hydraulic support
CN202467880U (en) * 2011-11-28 2012-10-03 袁伟昊 Thin seam blast mining solid waste filling hydraulic support
CN202628177U (en) * 2011-12-24 2012-12-26 中国煤炭科工集团太原研究院 Gangue-coal ash two-column shield-type hydraulic filling support
CN103016038A (en) * 2012-12-14 2013-04-03 莱芜市万祥矿业有限公司 Method for coal extracting and gangue filling
CN103437792A (en) * 2013-09-13 2013-12-11 陕西中能煤田有限公司 Filling sealing device and filling method thereof
CN203383843U (en) * 2013-07-18 2014-01-08 中国矿业大学 Thin coal seam filling and coal mining bracket
CN104018867A (en) * 2014-06-11 2014-09-03 卡特彼勒(郑州)有限公司 Hydraulic support
CN104564071A (en) * 2014-12-05 2015-04-29 新汶矿业集团有限责任公司 Comprehensive gangue filling coal mining equipment and filling method
CN104609170A (en) * 2014-12-05 2015-05-13 新汶矿业集团有限责任公司 Waste rock belt conveying device
CN205558947U (en) * 2016-04-15 2016-09-07 陕西开拓建筑科技有限公司 Coal face's gob entry floodwater drainage moves support certainly about being fit for
RU177606U1 (en) * 2017-02-20 2018-03-02 Общество С Ограниченной Ответственностью "Корум Групп" STRUCTURE LIFTING DEVICE
CN109184769A (en) * 2018-11-08 2019-01-11 陕西蓝山重工科技有限公司 A kind of soft mould filling mining bracket and its placement method
CN210105900U (en) * 2019-05-05 2020-02-21 陕西蓝山重工科技有限公司 Colliery solid waste fills hydraulic support

Patent Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1418075A (en) * 1972-02-28 1975-12-17 Charbonnages De France Self advancing support device for coal and ore extraction works
FR2503788A1 (en) * 1981-04-09 1982-10-15 Uholne A Lignitove Bane Koncer SUPPORT UNIT FOR OPERATION BY BENCHES OR WITH CUT TO THE ROOF OF A COAL LAYER OR OTHER ORE
DE4130825A1 (en) * 1991-09-17 1993-03-18 Westfalia Becorit Ind Tech Advancing mine roof support - has hinge connected roof and floor members with hydraulic cylinders, followed by working face protection unit
RU2026982C1 (en) * 1992-03-26 1995-01-20 Шахтинский филиал Новочеркасского политехнического института Shaft-sinking set
CN1873188A (en) * 2005-05-30 2006-12-06 佟强 Hydraulic support for filling waste rock
CN201007216Y (en) * 2007-02-06 2008-01-16 中国矿业大学 Mining with filling hydraulic support
CN101487395A (en) * 2009-02-24 2009-07-22 辽宁天安矿山科技有限公司 Template support for filling after support
CN201539274U (en) * 2009-12-04 2010-08-04 沈阳市华祥矿山机械厂 Tank type filling hydraulic support
CN101793159A (en) * 2010-03-19 2010-08-04 中国矿业大学 Dam-type filling hydraulic bracket in mined-out region
CN202325590U (en) * 2011-11-22 2012-07-11 徐州中矿大贝克福尔科技有限公司 Filling hydraulic support frame for backfill of coal mine
CN202467880U (en) * 2011-11-28 2012-10-03 袁伟昊 Thin seam blast mining solid waste filling hydraulic support
CN202628177U (en) * 2011-12-24 2012-12-26 中国煤炭科工集团太原研究院 Gangue-coal ash two-column shield-type hydraulic filling support
CN102434182A (en) * 2011-12-31 2012-05-02 山东科技大学 Filling hydraulic bracket with automatic bag overturning mechanism
CN102704978A (en) * 2012-06-29 2012-10-03 中国矿业大学 High fully mechanized filling, mining and screening hydraulic support
CN103016038A (en) * 2012-12-14 2013-04-03 莱芜市万祥矿业有限公司 Method for coal extracting and gangue filling
CN203383843U (en) * 2013-07-18 2014-01-08 中国矿业大学 Thin coal seam filling and coal mining bracket
CN103437792A (en) * 2013-09-13 2013-12-11 陕西中能煤田有限公司 Filling sealing device and filling method thereof
CN104018867A (en) * 2014-06-11 2014-09-03 卡特彼勒(郑州)有限公司 Hydraulic support
CN104564071A (en) * 2014-12-05 2015-04-29 新汶矿业集团有限责任公司 Comprehensive gangue filling coal mining equipment and filling method
CN104609170A (en) * 2014-12-05 2015-05-13 新汶矿业集团有限责任公司 Waste rock belt conveying device
CN205558947U (en) * 2016-04-15 2016-09-07 陕西开拓建筑科技有限公司 Coal face's gob entry floodwater drainage moves support certainly about being fit for
RU177606U1 (en) * 2017-02-20 2018-03-02 Общество С Ограниченной Ответственностью "Корум Групп" STRUCTURE LIFTING DEVICE
CN109184769A (en) * 2018-11-08 2019-01-11 陕西蓝山重工科技有限公司 A kind of soft mould filling mining bracket and its placement method
CN210105900U (en) * 2019-05-05 2020-02-21 陕西蓝山重工科技有限公司 Colliery solid waste fills hydraulic support

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
杜晓山;: "断层带大倾角支架防倒防滑技术及安全管理研究", 山东煤炭科技, no. 05, 28 May 2017 (2017-05-28) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114233359A (en) * 2022-01-24 2022-03-25 中煤能源研究院有限责任公司 Caving type gangue filling hydraulic support and filling method
CN114233359B (en) * 2022-01-24 2024-03-01 中煤能源研究院有限责任公司 Roof-caving type gangue filling hydraulic support and filling method

Similar Documents

Publication Publication Date Title
US11208888B2 (en) Process and device for supporting anchor bolt and anchor cable on successive mining working face
CN102704974B (en) Hydraulic bracket and method for drawing, filling and mining at high position
CN102720499A (en) Fully-mechanized top-coal caving, filling and mining method
CN101487395A (en) Template support for filling after support
CN201650330U (en) Special advanced supporting support set for conveyor gateway on fully-mechanized coal mining faces
CN109944624A (en) Coal mine solid waste fills hydraulic support
CN102207003A (en) Advance support bracket set special for conveyor gateway on fully-mechanized coal mining working surface
CN203962014U (en) Combine and adopt the dual-purpose working surface hydraulic support of filling
CN206969749U (en) A kind of stacker-reclaimer
CN109915203A (en) A kind of coal mine gob dry packing system and placement method
CN206987810U (en) A kind of coal wall crawler type adopts branch fortune all-in-one
CN202788899U (en) Large-swing beam structured top coal caving hydraulic support
CN108839601A (en) A kind of convertible slide of dregs dumper
CN201314239Y (en) End support for roadway caving
CN210105900U (en) Colliery solid waste fills hydraulic support
CN205778971U (en) Hydraulic support for bashing
CN102900450A (en) Caving coal hydraulic support with large swing beam structure
CN210087381U (en) Dry filling system for coal mine goaf
CN113586116A (en) Coal mine solid filling mining hydraulic support
CN105173768A (en) Portal-type three-scraper reclaimer for strip-shaped stockyard
CN206751002U (en) The arm-type ship loader of circular arc
CN215256313U (en) Coal mine underground gangue filling system
CN202970750U (en) Large mining height front and rear top beam coaxial hinge joint filling coal mining hydraulic support
CN201694569U (en) Retractable underground coal bunker wall-stuck coal shoveling device
CN113586141A (en) Filling scraper conveyor supporting device for filling mining support

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination