CN108252732A - A kind of transition bracket that can be realized top-coal caving face end and put coal - Google Patents
A kind of transition bracket that can be realized top-coal caving face end and put coal Download PDFInfo
- Publication number
- CN108252732A CN108252732A CN201810251763.1A CN201810251763A CN108252732A CN 108252732 A CN108252732 A CN 108252732A CN 201810251763 A CN201810251763 A CN 201810251763A CN 108252732 A CN108252732 A CN 108252732A
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- coal
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- skylight
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- tail boom
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- 239000003245 coal Substances 0.000 title claims abstract description 127
- 230000007704 transition Effects 0.000 title claims description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000011084 recovery Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- E21D23/04—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
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- 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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention relates to a kind of hydraulic supports that can be realized top-coal caving face end and put coal.Including pedestal, top beam, column, four-bar mechanism and and tail boom, pedestal and column, four-bar mechanism are hinged, and top beam is hinged with column, four-bar mechanism and tail boom, and tail boom is connect by tail boom jack with bracket base；Top beam front end is hinged a forestope, there are one the extensible canopy that can be stretched inside forestope, a hinged face guard on extensible canopy；Coal skylight is put on tail boom, puts and is hinged on coal skylight with tail boom, the rotation of certain angle can be carried out by putting coal skylight, put and coal plate is put inside coal skylight can be stretched.Top coal above top-coal caving face is respectively put by putting coal skylight on rear handpiece of scraper conveyer and tail, can be realized that coal is put in the upper and lower end of top-coal caving face, be improved coal recovery rate.
Description
Technical field
The present invention relates to the support apparatus that a kind of underground coal mine uses, specifically one kind can realize that Sub-Level Caving works
Put the support apparatus of coal in face end.
Background technology
The primary energy proportion of production of China's nearly more than ten years and primary energy consumption proportion are made a general survey of, can significantly be found out
Coal resources in China yield accounts for more than 70% China's total energy yield, and the proportion that coal resources account for primary energy consumption gradually drops
Low, by the end of 2017, its proportion remained above 60%, this illustrates that China is still the coal type using coal resources as main energy sources
Country.From the reserves of the various energy in China, coal resources are still China within the following quite a long time
Main resource, Chinese development be unable to do without coal；From the working thickness of coal resources in China, the ratio of high seam accounts for always
Three one-tenth or so of body coal resources.
Nowadays, the underground longwall mining method for extraction of comparative maturity has coal caving mining method, slice longwall method and high working face to mine
Method.Top coal caving is compared to separate zone production with tunnelling rate is low, good to the adaptability of geological conditions, consumable material is few, high
Production efficiently, force piece come the advantages that pressing mitigation, have that the adaptability of geological conditions is good, construction store compared to high working face coal-mining method
The advantages such as material is less, input cost is low.However, the low rate of recovery, mined-out area hazard and the Gas Disaster of top coal caving are endured to the fullest extent and are denounced,
The low development that the easy spontaneous combustion of goaf float coal and the gas easily unfavorable factors such as accumulation is caused to restrict Sub-Level Caving of coal recovery rate,
Therefore the rate of recovery for improving top-coal caving face coal resources advantageously accounts for the easily accumulation etc. of goaf spontaneous combustion of float and gas and asks
Topic, while the waste of resource is reduced, be conducive to increase economic efficiency.
Improve the rate of recovery of coal resources, it is necessary first to understand the source of the Coal Loss in caving recovery process.Usually
For, the Coal Loss during top coal caving mainly has the upper and lower end loss of process loss, working face, just adopts loss, end
Adopt loss and section or point band loss of coal pillar.For the major source of the Coal Loss of top coal caving process, caving is improved
The major measure of coal recovery ratio, which is mainly reduced, just adopts loss, reduces end loss, reduces drawing coal technology loss, reforms tunnel cloth
It puts and reduces section coal pillar loss.However, reducing the loss of top-coal caving face end, the raising of the top coal caving rate of recovery is received
Effect is more apparent, if the upper and lower end of top-coal caving face can carry out putting coal, the top-coal caving face rate of extraction can improve
2%~4%.
The head of scratch board conveyor, tail are located at the upper and lower end of working face after top-coal caving face, due to head, tail
Lead-over groove is higher, and traditional sublevel caving hydrau lic support coal discharge outlet crosses coal difficulty after opening, and generally without putting coal, therefore is put to realize
Coal is put in the upper and lower end of top coal working face to be needed to develop a kind of novel Sub-Level Caving transition bracket, can realize top-coal caving face
Coal is put in upper and lower end, improves the rate of recovery of coal resources.
Invention content
The technical problem to be solved in the invention is to provide a kind of mine hydraulic bracket, can realize top-coal caving face
Put coal in upper and lower end.
The technical solution adopted by the present invention is：A kind of transition bracket that can be realized top-coal caving face end and put coal, packet
Pedestal and top beam are included, each hinged two front columns in rear and front end and rear column, front column and rear column of pedestal are hinged with top beam；
Top beam front end is hinged a forestope, there is an extensible canopy that can be stretched inside forestope, one hinged on extensible canopy
Face guard；The rear end of top beam is hinged a tail boom, is connected between tail boom and pedestal by tail boom jack, tail boom jack and branch
Frame pedestal is hinged；Coal skylight is put on tail boom, coal skylight is put and is hinged with tail boom, putting coal skylight baffle can stretch, and put coal skylight
There is adjusting jack, the on and off for putting coal fenestra is controlled by the stroke for adjusting jack.
The further improved concrete structure of the present invention is：It is opened up in stent tail boom and puts coal skylight, put coal skylight and stent
Tail boom is hinged, and can carry out the rotation of certain angle, and putting on coal skylight has plate that can stretch.
The concrete structure of further improvement of the present invention is：One is also hinged below top beam mainly by pedestal, preceding company
The four-bar mechanism that bar, back link and upper connecting rod are formed, front rod, the back link of four-bar mechanism are hinged on pedestal, upper company
The top of bar is hinged with top beam.
The concrete structure of further improvement of the present invention is：There are advancing jack, advancing jack in bracket base forepart
It is hinged respectively with working face front scrapping plate conveyer and tail, there is slide fastener at bracket base rear portion, and slide fastener is conveyed with scraper plate after working face
Machine is connected with tail.
Four-bar mechanism below top beam of the present invention is reverse-four-link-bar mechanism, can improve the stability of stent.
The invention has the beneficial effects that：The top coal of the upper and lower end of top-coal caving face can be released, reduce Sub-Level Caving
Coal Loss in recovery process improves the rate of recovery of coal resources, is conducive to increase economic efficiency, and reduces cost of winning, drop
Phenomena such as spontaneous combustion in low goaf gas concentration and coal seam.
Description of the drawings
Fig. 1 is stent of the present invention in head Sub-Level Caving status diagram；
Fig. 2 is stent of the present invention in tail Sub-Level Caving status diagram；
Fig. 3 is stent tail boom vertical view of the present invention；
Fig. 4 arranges transition bracket roadway layout schematic diagram for top-coal caving face of the present invention.
Reference sign：1- extensible canopies, 2- face guards, 3- forestopes, 4- front columns, 5- front rods, 6- upper connecting rods, 7-
Back link, 8- top beams, 9- rear columns, 10- tail boom jack, 11- put coal jack, 12- top coals, 13- tail booms, 14- front scrapping plates
Conveyer head, 15- advancing jacks, 16- bracket bases, 17- adjust jack, and 18- puts coal skylight, 19- slide fasteners, after 20-
Handpiece of scraper conveyer, 21- front scrapping plate conveyer tails, scraper conveyor tail after 22-, 23- tail boom side guard plates, 24- skylights
Expansion plate, 25- goafs, 26- coal walls.
Specific embodiment
The present invention is described in further details below in conjunction with the accompanying drawings：
A kind of transition bracket that can be realized top-coal caving face end and put coal, as shown in Figure 1, Figure 2, Figure 3 shows, including pedestal
16 and top beam 8, each hinged two front columns 4 in rear and front end and rear column 9, front column 4 and rear column 9 and top beam 8 of pedestal 16
It is hinged；Be internally provided with advancing jack 15 in pedestal 16, advancing jack 15 respectively with front scrapping plate conveyer head 14 and before
Scraper conveyor tail 21 is hinged；16 rear portion of pedestal is defeated with rear handpiece of scraper conveyer 20 and rear scraper plate respectively by slide fastener 19
Machine tail 22 is sent to connect.
8 front end of set cap is hinged a forestope 3, in the inside of forestope 3 there are one the extensible canopy 1 that can be stretched,
A hinged face guard 2 on extensible canopy 1；The rear end of top beam 8 is hinged a tail boom 13, and tail boom 13 is very heavy by tail boom with pedestal 16
Top 10 is hinged.
Coal skylight 18 is put on tail boom 13, putting has skylight expansion plate 24 on coal skylight 18, put coal skylight 18 and cut with scissors with tail boom 13
It connects, puts coal jack 11 and be hinged with tail boom 13, put coal jack 11 and be hinged with putting coal skylight 18, put coal skylight 18 and adjust very heavy
Top 17 is hinged, and it is hinged with skylight expansion plate 24 to adjust jack 17
As shown in figure 4, the coal skylight 18 of putting on transition bracket tail boom 13 is located at rear handpiece of scraper conveyer 20 with after respectively
Right over scraper conveyor tail 22.
Front scrapping plate conveyer head 14, front scrapping plate conveyer tail 21 are controlled by the stroke for controlling advancing jack 15
With the movement of transition bracket；Handpiece of scraper conveyer 20 and rear scraper conveyor tail after being realized by the length for adjusting slide fastener 19
22 movement.
Adjusting jack 17 controls 24 elongation of skylight expansion plate that can shorten, and puts the control of coal jack 11 and puts beating for coal skylight 18
Open and close are closed.
It is opened by adjusting to put coal jack 11 and make to put coal skylight 18, the top coal 12 of the upper and lower end of working face is by putting coal
Skylight 18 is respectively put into rear handpiece of scraper conveyer 20 and rear scraper conveyor tail 22；11 He of coal jack is put by adjusting
Skylight expansion plate 24 can make to put coal skylight 18 and close to terminate to put coal.
Claims (6)
1. a kind of transition bracket that can be realized top-coal caving face end and put coal, it is characterised in that：Including pedestal and top beam, bottom
Each hinged two front columns in rear and front end and rear column, front column and rear column of seat are hinged with top beam；It is set in chassis interior
There is advancing jack, advancing jack is not hinged with front scrapping plate conveyer head and front scrapping plate conveyer tail；Base rear portion leads to
Slide fastener is crossed to connect with rear handpiece of scraper conveyer and rear scraper conveyor tail respectively；It is visited before set cap front end is one hinged
Beam, there are one the extensible canopy that can be stretched inside forestope, a hinged face guard on extensible canopy；The rear end of top beam is hinged
One tail boom, tail boom are hinged with pedestal by tail boom jack.Tail boom puts coal skylight, and putting has skylight expansion plate on coal skylight,
It puts coal skylight to be hinged with tail boom, puts coal jack and be hinged with tail boom, put coal jack and be hinged with putting coal skylight, put coal skylight with adjusting
Section jack is hinged, and is adjusted jack and is hinged with skylight expansion plate；Putting after coal skylight is located at respectively on transition bracket tail boom is scraped
Above plate conveyer head and rear scraper conveyor tail.
2. a kind of transition bracket that can be realized top-coal caving face end and put coal according to claim 1, feature exist
In：It is opened up in stent tail boom and puts coal skylight, put coal skylight and be hinged with stent tail boom, the rotation of certain angle can be carried out, put coal
There is plate that can stretch on skylight.
3. a kind of transition bracket that can be realized top-coal caving face end and put coal according to claim 1, feature exist
In：Below top beam also be hinged a four-bar mechanism being mainly made of pedestal, front rod, back link and upper connecting rod, four
Front rod, the back link of link mechanism are hinged on pedestal, and top and the top beam of upper connecting rod are hinged.
4. a kind of transition bracket that can be realized top-coal caving face end and put coal according to claim 1, feature exist
In：The top coal of the upper and lower end of working face is respectively put into rear handpiece of scraper conveyer and rear drag conveyor by putting coal skylight
Tail.
5. a kind of transition bracket that can be realized top-coal caving face end and put coal according to claim 1, feature exist
In：It puts that coal is very heavy and skylight expansion plate can control and put coal skylight and open and be closed by adjusting, puts coal skylight and open and closure
It can control whether to release top coal.
6. a kind of transition bracket that can be realized top-coal caving face end and put coal according to claim 1, feature exist
In：By the way that the advancing jack on pedestal is controlled to control front scrapping plate conveyer head, front scrapping plate conveyer tail and transition bracket
Movement；The movement of handpiece of scraper conveyer and rear scraper conveyor tail after being realized by the length for adjusting slide fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251763.1A CN108252732A (en) | 2018-03-26 | 2018-03-26 | A kind of transition bracket that can be realized top-coal caving face end and put coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251763.1A CN108252732A (en) | 2018-03-26 | 2018-03-26 | A kind of transition bracket that can be realized top-coal caving face end and put coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108252732A true CN108252732A (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810251763.1A Pending CN108252732A (en) | 2018-03-26 | 2018-03-26 | A kind of transition bracket that can be realized top-coal caving face end and put coal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026109A (en) * | 2018-10-09 | 2018-12-18 | 中国矿业大学(北京) | Longwall top coal caving intelligence Fang Mei mechanism |
| CN110671140A (en) * | 2019-10-16 | 2020-01-10 | 河南理工大学 | Oscillation tail beam of hydraulic support for caving coal |
| CN112938328A (en) * | 2021-04-09 | 2021-06-11 | 扎赉诺尔煤业有限责任公司 | Group platform that expands of crossheading belt feeder |
| 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 |
| CN114562314A (en) * | 2022-03-09 | 2022-05-31 | 中国矿业大学 | Fully mechanized caving face filling hydraulic support and use method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026109A (en) * | 2018-10-09 | 2018-12-18 | 中国矿业大学(北京) | Longwall top coal caving intelligence Fang Mei mechanism |
| CN109026109B (en) * | 2018-10-09 | 2023-11-28 | 中国矿业大学(北京) | Fully-mechanized caving mining intelligent coal caving mechanism |
| CN110671140A (en) * | 2019-10-16 | 2020-01-10 | 河南理工大学 | Oscillation tail beam of hydraulic support for caving coal |
| CN110671140B (en) * | 2019-10-16 | 2021-11-12 | 河南理工大学 | Oscillation tail beam of hydraulic support for caving coal |
| CN112938328A (en) * | 2021-04-09 | 2021-06-11 | 扎赉诺尔煤业有限责任公司 | Group platform that expands of crossheading belt feeder |
| 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 |
| CN114562314A (en) * | 2022-03-09 | 2022-05-31 | 中国矿业大学 | Fully mechanized caving face filling hydraulic support and use method thereof |
| CN114562314B (en) * | 2022-03-09 | 2023-02-28 | 中国矿业大学 | Fully mechanized caving face filling hydraulic support and using method thereof |
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