CN111734412B - Thick coal seam layered lapping mining working face equipment model selection matching type - Google Patents
Thick coal seam layered lapping mining working face equipment model selection matching type Download PDFInfo
- Publication number
- CN111734412B CN111734412B CN202010509550.1A CN202010509550A CN111734412B CN 111734412 B CN111734412 B CN 111734412B CN 202010509550 A CN202010509550 A CN 202010509550A CN 111734412 B CN111734412 B CN 111734412B
- Authority
- CN
- China
- Prior art keywords
- lapping
- support
- working face
- transition
- mining
- 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.)
- Active
Links
- 238000005065 mining Methods 0.000 title claims abstract description 50
- 239000003245 coal Substances 0.000 title claims abstract description 38
- 230000007704 transition Effects 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010878 waste rock Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
- E21D19/02—Provisional protective covers for working space for use in longwall working
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Remote Sensing (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The thick coal seam layered lapping mining working face equipment model selection matching type mainly comprises a middle lapping support, a transition lapping support A, a transition lapping support B, an end support, a return airway advance support, an air inlet airway advance support, a coal mining machine, a scraper conveyor and a reversed loader. The operation space at the rear part of the full working face lapping support adopts a closed design, so that enough and safe lapping operation space is formed; arranging the rear end of a working face lapping support base on a straight line, combining the rear end of the working face lapping support base with the transition lapping support B and the return airway advance support, and creating a smooth L-shaped lapping channel in the working face; four-column type supports are selected as basic frame types of the lapping supports, and bottom adjusting beams are arranged to adjust and control the frame spacing of the supports, so that pedestrians among the frames are facilitated; the lapping device and the working face bracket are organically connected into a whole, so that the lapping device can automatically move forwards along with the forward movement of the bracket. The invention provides a working face equipment model selection matching type capable of realizing high-efficiency lapping, and creates favorable precondition for realizing high-efficiency production of the lapping and mining working face.
Description
Technical Field
The invention relates to a thick coal seam layered lapping mining working face equipment model selection matching type, and belongs to the field of coal mining technology and equipment.
Background
The thick coal seam mining mainly comprises three methods of layered net-laying mining, top coal caving mining and large mining height one-time mining full-height mining. The layered lapping mining is one of the main methods for the early-stage thick coal seam comprehensive mechanized mining, but because the roadway excavation amount is large, the lapping operation time is long, a large amount of effective coal mining time is occupied, the coal mining efficiency and the benefit are low, and the method is only applied to individual mines at present. With the development of top coal caving mining and large mining height one-time mining and full-height mining technologies, top coal caving mining and large mining height one-time mining and full-height mining are the main aspects of thick coal seam mining in China and most countries in the world.
However, for top coal caving mining, the problems of low resource recovery rate and high coal gangue content are not solved effectively, and the top coal caving mining adopted in a high gas mine has great potential safety hazard; for large mining height and once mining full-height mining, the requirement on the occurrence condition of the coal bed is high, the maximum mining height is limited, and the method is only suitable for mining of partial thick coal beds of mines. The layered lapping mining has the characteristics of high resource recovery rate, coal quality obviously superior to that of caving coal mining, and wide application range, and in order to exert the advantages of the layered lapping mining, the key is to solve the problems of low production efficiency and low benefit of the layered lapping mining, but substantially improve the lapping efficiency.
Disclosure of Invention
The invention aims to provide a working face equipment model selection matching type capable of realizing high-efficiency lapping, and creates favorable precondition for realizing high-efficiency production of a lapping and mining working face.
In order to achieve the purpose, the invention adopts the following technical scheme:
the thick coal seam layered lapping mining working face equipment model selection matching type mainly comprises a middle lapping support, a transition lapping support A, a transition lapping support B, an end support, a return airway advance support, an air inlet airway advance support, a coal mining machine, a scraper conveyor and a reversed loader.
The middle lapping support and the transition lapping support A are both based on the traditional lapping hydraulic support, structural parameters are optimized, and a swing tail beam, a tail beam movable side guard plate, an inserting plate and a bottom adjusting beam are arranged.
The transition lapping support B is characterized in that on the basis of the transition lapping support A, the widths (adjacent sides to a coal wall) of a top beam and a shield beam are increased, and meanwhile, a top guard plate is additionally arranged on the top beam and the shield beam.
The end bracket mainly comprises a front double-row supporting bracket and a rear two-column shielding bracket, wherein a closed protection device is arranged on the rear bracket adjacent to the transitional lapping bracket A.
The middle lapping support, the transition lapping support A, the transition lapping support B and the end support are all provided with lapping connecting devices in advance.
The forepoling of said return airway of the invention is formed by multiple reverse four bar linkage hydraulic supports with the same structure.
The air inlet roadway fore support, the coal mining machine, the scraper conveyor and the reversed loader are all of the existing mature frame type or machine type.
The invention is mainly applied to the matching of the equipment type selection of the thick coal seam layered lapping mining working face.
The invention has the advantages that:
(1) the rear operation space of the lapping support adopts a closed design, and a waste rock blocking mechanism is designed between the rear working face space of the transition lapping support and the side of the end support, so that a closed operation space is provided for the lapping operation of the whole working face, and the safety of the lapping operation is improved;
(2) a smooth L-shaped lapping material conveying channel is created on the working face, and good precondition is created for the efficient transportation of the lapping material;
(3) the middle lapping bracket and the transition lapping bracket of the working face adopt four-column type frame shapes, the frame spacing between the brackets can be better ensured under the condition of the same bracket working resistance, and the pedestrian space between the brackets can be effectively ensured by adjusting and controlling the frame spacing through the bottom adjusting beam;
(4) the middle lapping bracket can also be used as a top coal caving bracket by replacing the spile;
(5) the net laying device is provided with a perfect net laying connecting device, the net laying device and the working face support can be organically connected into a whole, and the net laying device can automatically move forwards along with the forward movement of the support.
The invention is further described in connection with the drawings and the best mode for carrying out the invention so as to provide a general and thorough understanding of the invention, and not to limit the scope of the invention. The foregoing is a full disclosure of the scope of the invention, and thus any equivalents thereof known in the art to which this invention pertains are deemed to be infringements of the invention.
Drawings
Fig. 1 is a plan view of the overall supporting arrangement of the equipment of the layered lapping and mining working face of the thick coal seam.
Fig. 2 is a schematic view of the intermediate lapping frame structure and the mating plane of the present invention.
Fig. 3 is a schematic view of the structure and the matching plane of the transitional lapping support A of the invention.
Fig. 4 is a schematic view of the structure and the matching plane of a transitional lapping bracket B of the invention.
Fig. 5 is a schematic view of the structure and mating plane of the tip holder of the present invention.
Fig. 6 is a schematic view of the forepoling structure and the supporting plane of the return airway of the present invention.
Detailed Description
The invention discloses a thick coal seam layered lapping mining working face equipment matching type shown in figure 1, which mainly comprises a middle lapping support (1), a transition lapping support A (2), a transition lapping support B (3), an end support (4), a return airway advance support (5), an air inlet airway advance support (6), a coal mining machine (7), a scraper conveyor (8) and a reversed loader (9).
As shown in figure 2, the frame shape of the middle lapping frame (1) is a four-column type,
a closed lapping operation space is formed at the rear part of the bracket by the additionally arranged swinging tail beam (1-1), the tail beam movable side guard plate (1-2) and the inserting plate (1-3); the bottom adjusting beams (1-4) can adjust and control the space between the frames.
As shown in figure 3, the transitional lapping bracket A (2) has a similar structural form with the intermediate lapping bracket (1) and has the same lapping function.
As shown in fig. 1, after the middle lapping support (1), the transition lapping support a (2) and the transition lapping support B (3) are matched with the scraper conveyor (8), the rear ends of the support bases are kept on a straight line.
As shown in figure 4, the transitional lapping support B (3) of the invention increases the width of the top beam (3-1) and the shield beam (3-2), and simultaneously adds the top guard plate (3-3) on the top beam (3-1) and the shield beam (3-2), so that a safe lapping channel is formed between the base of the transitional lapping support B (3) and the coal wall.
As shown in figure 5, the front double-row supporting type support (4-1) of the end support (4) can meet the arrangement requirements of a scraper conveyor (8) and a reversed loader (9), the rear two-column shield type support (4-2) provides an installation space for a net transporting traction mechanism (4-4), and a closed type protection device (4-3) can prevent goaf gangue from entering the support.
As shown in fig. 2, 3, 4 and 5, the net spreading mechanism (1-5), the net transporting steering mechanism (3-4) and the net transporting traction mechanism (4-4) are connected with the bracket into a whole.
As shown in fig. 5, the forepoling (5) of the return airway of the invention is mainly characterized by meeting the forepoling requirement of the return airway on the working face and the requirement of providing a mesh laying channel.
Claims (2)
1. A thick coal seam layered lapping mining working face equipment model selection matching structure comprises a thick coal seam layered lapping mining working face equipment model selection matching form, wherein the thick coal seam layered lapping mining working face equipment model selection matching form mainly comprises a middle lapping support (1), a transition lapping support A (2), a transition lapping support B (3), an end support (4), a return airway advance support (5), an air inlet airway advance support (6), a coal mining machine (7), a scraper conveyor (8) and a reversed loader (9); the middle lapping support (1), the transition lapping support A (2), the transition lapping support B (3) and the return airway forepoling (5) form a matched type of L-shaped lapping channel equipment;
the frame shape of the middle lapping bracket (1) is a four-column type and comprises a swinging tail beam (1-1), a tail beam movable side guard plate (1-2), an inserting plate (1-3) and a bottom adjusting beam (1-4); wherein the swing tail beam (1-1), the tail beam movable side guard plate (1-2) and the inserting plate (1-3) form a closed lapping operation space at the rear part of the middle lapping support (1), and the middle lapping support (1) is integrally connected with a lapping mechanism (1-5); the bottom adjusting beams (1-4) are used for adjusting and controlling the space between the frames; the transition lapping support B (3) is characterized in that the width of a top beam (3-1) and a shield beam (3-2) is increased, a top guard plate (3-3) is additionally arranged on the top beam (3-1) and the shield beam (3-2), a safe lapping channel is formed between a base of the transition lapping support B (3) and the coal wall of a thick coal seam, and a net conveying steering mechanism (3-4) is integrally connected to the transition lapping support B (3); the end support (4) comprises a front double-row support type support (4-1), a rear two-column shield type support (4-2) and a closed type protection device (4-3); wherein the double-row support type bracket (4-1) can meet the arrangement requirements of a scraper conveyor (8) and a reversed loader (9); the end support (4) is integrally connected with a net transporting traction mechanism (4-4), the two-column shielding type support (4-2) provides an installation space for the net transporting traction mechanism (4-4), and the closed type protection device (4-3) is used for preventing goaf waste rocks from entering the end support (4).
2. The thick coal seam layered lapping mining working face equipment model selection supporting structure of claim 1, characterized in that: after the middle lapping support (1), the transition lapping support A (2) and the transition lapping support B (3) are matched with the scraper conveyor (8), the rear end of the support base is kept on a straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010509550.1A CN111734412B (en) | 2020-06-08 | 2020-06-08 | Thick coal seam layered lapping mining working face equipment model selection matching type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010509550.1A CN111734412B (en) | 2020-06-08 | 2020-06-08 | Thick coal seam layered lapping mining working face equipment model selection matching type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111734412A CN111734412A (en) | 2020-10-02 |
| CN111734412B true CN111734412B (en) | 2023-01-13 |
Family
ID=72648403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010509550.1A Active CN111734412B (en) | 2020-06-08 | 2020-06-08 | Thick coal seam layered lapping mining working face equipment model selection matching type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111734412B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938328B (en) * | 2021-04-09 | 2022-11-15 | 扎赉诺尔煤业有限责任公司 | Group's platform expands of crossheading belt feeder |
| CN113738362A (en) * | 2021-09-01 | 2021-12-03 | 扎赉诺尔煤业有限责任公司 | Efficient lapping method for layered mining of ultra-thick coal seam |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1004367B (en) * | 1985-11-06 | 1989-05-31 | 煤炭工业部煤炭科学研究院唐山分院 | Mine with automatic auxiliary netizen's union network method and device |
| CN101871355B (en) * | 2010-06-10 | 2013-02-13 | 中煤北京煤矿机械有限责任公司 | Four post support shield type large mining height mesh-placement hydraulic support |
| CN201884042U (en) * | 2010-12-21 | 2011-06-29 | 山西晋城无烟煤矿业集团有限责任公司 | High-gassy fully mechanized top coal-caving mining facility |
| CN102168573A (en) * | 2011-04-12 | 2011-08-31 | 天地科技股份有限公司 | Equipment matching method for fully mechanized mining working surface with large mining height |
| CN103953376A (en) * | 2014-05-13 | 2014-07-30 | 中国矿业大学 | Method for large dip angle work surface rapid mesh laying and top plate stabilizing |
| CN104088639A (en) * | 2014-06-25 | 2014-10-08 | 西安科技大学 | Large-inclination angle thick coal seam strike long-wall workface large-mining height mining method |
| CN107023310B (en) * | 2017-06-09 | 2018-11-09 | 浩珂科技有限公司 | The quick lapping technique of separate zone production large area |
| CN107939429B (en) * | 2017-11-14 | 2019-04-19 | 山东科技大学 | A kind of bottom plate of thick seam slicing system longitudinal paving interconnection device and method automatically |
| CN107701211B (en) * | 2017-11-14 | 2019-04-09 | 山东科技大学 | A kind of bottom plate of thick seam slicing system spreads interconnection device and method automatically |
-
2020
- 2020-06-08 CN CN202010509550.1A patent/CN111734412B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111734412A (en) | 2020-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111734412B (en) | Thick coal seam layered lapping mining working face equipment model selection matching type | |
| CN203430527U (en) | Shield type continuous tunneling and anchoring machine | |
| CN105298496B (en) | Complete adopt of reserved working face coal column is set to fill coal-mining method entirely | |
| CN203362198U (en) | Track walking type immediate support device of fully-mechanized drivage roadway | |
| CN206458492U (en) | Support group for coal mining | |
| CN202391424U (en) | Supporting type comprehensive bolter miner | |
| CN201650331U (en) | Onboard temporary supporting device | |
| CN203769787U (en) | Mining whole-section rectangular heading machine supporting, propelling and direction adjusting mechanism | |
| CN108252732A (en) | A kind of transition bracket that can be realized top-coal caving face end and put coal | |
| CN110608060A (en) | Straddle type five-arm drill carriage suitable for large section | |
| CN109026050A (en) | A kind of anchor combined unit of fully mechanized mining formula pick branch and its an application method | |
| CN104265291A (en) | Comprehensive mechanized coal mining method of steeply inclined and extremely thick coal seam planing conveyor | |
| CN110566205A (en) | Mining method for steeply inclined coal seam | |
| CN102373937B (en) | Rhombic hydraulic support for pseudo-inclined down mining working surface of steep coal seam | |
| CN104329117A (en) | Installation method of comprehensive mechanized filling, coal mining and open-off cutting equipment | |
| CN108374681B (en) | Support matching method capable of realizing end coal caving of top coal caving working face | |
| CN208777996U (en) | A kind of anchor combined unit of fully mechanized mining formula pick branch | |
| CN204126645U (en) | What have top coal recovery device fells and transports coal all-in-one | |
| CN104234712B (en) | A kind of there is top coal recovery device fell and transport coal all-in-one | |
| CN201884042U (en) | High-gassy fully mechanized top coal-caving mining facility | |
| CN203067006U (en) | Hydraulic support | |
| CN111255496B (en) | Coal pillar auxiliary type mining advanced temporary support device and using method thereof | |
| CN104088642A (en) | Super-short-wall coal mining method | |
| CN210686039U (en) | Mining belt air door-passing air leakage preventing device | |
| CN111734479B (en) | Lapping material conveying system for lapping mining working face |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |