CN108331580B - Clean and efficient coal mining method - Google Patents
Clean and efficient coal mining method Download PDFInfo
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- CN108331580B CN108331580B CN201711290893.8A CN201711290893A CN108331580B CN 108331580 B CN108331580 B CN 108331580B CN 201711290893 A CN201711290893 A CN 201711290893A CN 108331580 B CN108331580 B CN 108331580B
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- 238000005065 mining Methods 0.000 title claims abstract description 67
- 239000003245 coal Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002910 solid waste Substances 0.000 claims abstract description 31
- 239000010881 fly ash Substances 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 4
- 238000000605 extraction Methods 0.000 claims abstract 2
- 238000005520 cutting process Methods 0.000 claims description 6
- 230000005641 tunneling Effects 0.000 claims description 6
- 230000000717 retained effect Effects 0.000 claims description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000009270 solid waste treatment Methods 0.000 abstract description 3
- 239000010878 waste rock Substances 0.000 abstract description 2
- 230000009191 jumping Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011027 product recovery Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
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- 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
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/06—Filling-up mechanically
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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)
- Remote Sensing (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a clean and efficient coal mining method, which is suitable for the field of mine solid waste treatment. Designing the width of a short-section working face according to solid waste discharge generated by a mine, including underground coal gangue and ground fly ash; firstly, filling and mining two adjacent short section working faces, and carrying out anchor bolt support along the edge of the filling face and the side of the solid coal to reserve a roadway; the laneways reserved on the two short-section working faces and the middle coal body form a long-section working face system; and (3) mining the long-section working face, jumping and mining the short-section filling working faces on the two sides, and transferring the gangue generated by the long-section working face to the short-section working face for filling, thereby realizing the continuous mining system with short-section filling mining and long-section efficient extraction. The invention can treat all solid wastes on the mine ground and underground, reduce the waste rock treatment cost, reduce the damage to the ecological environment, fill the goaf with the solid wastes to form a roadway, eliminate coal pillars and improve the recovery rate of resources.
Description
Technical Field
The invention relates to a clean and efficient coal mining method, which is particularly suitable for the field of mine solid waste treatment.
Background
Along with the continuous integration of national resources, millions of tons of large mines are produced every year, so that the solid waste generated by the mines is increased in an explosive mode, the coal mine solid waste mainly comprises coal gangue, washing gangue and fly ash, most of the existing treatment modes are centralized and stacked in the open air, the ecological environment of a mining area is damaged, and the living environment of personnel in the mining area is seriously threatened.
According to the overall national plan and requirements, the construction of novel modern coal mines is the direction of the future development of the coal industry in China, and the aims of promoting the safe low-carbon operation and sustainable development of coal mines are fulfilled, so that the treatment mode of mine solid wastes needs to be changed, and a new mode for comprehensively utilizing the solid wastes in a mining area needs to be explored. In recent years, coal mine enterprises also propose ways for comprehensive utilization, such as solid waste power generation, building material production, beneficial mineral product recovery, chemical product preparation, soil improvement, fertilizer production, backfilling (including building backfilling, low-lying land and wasteland filling, mine goaf filling and coal mine subsidence area reclamation), road building and the like, but the problem of solid waste treatment cannot be thoroughly solved, and a coal mining method which can rapidly treat ground solid waste and realize that underground solid waste does not rise is still lacked.
Disclosure of Invention
The technical problem is as follows: the invention aims to overcome the defects in the prior art and provide a clean and efficient coal mining method which can quickly treat ground solid waste and realize the purpose that underground solid waste does not rise.
The technical scheme is as follows: in order to achieve the technical purpose, the clean and efficient coal mining method is characterized by comprising the following steps:
a. calculating the volume of solid waste generated by the existing mine, wherein the solid waste comprises underground coal gangue, ground coal gangue and fly ash;
b. arranging a long-section working face for filling mine solid wastes in a coal seam of a mine field, arranging a short-section working face I and a short-section working face II on two sides of the long-section working face respectively, arranging the width of the short-section working face as w, debugging coal mining machines, hydraulic supports and belt conveyor equipment in the short-section working face I and the short-section working face II, simultaneously mining the short-section working face I and the short-section working face II, filling the solid wastes of the existing mine and coal gangue generated in mining, and carrying out anchor rod supporting on the edge of the filling face and the side of solid coal to keep the entry retaining on two sides of the filling face;
c. after the short-section working face I and the short-section working face II are mined, tunneling an open-cut hole between the short-section working face I and the short-section working face II by using a tunneling machine, so that a retained roadway and the open-cut hole reserved on the short-section working face I and the short-section working face II form a long-section working face mining system;
d. and (2) mining the long-section working face I, simultaneously transferring mining equipment of the short-section working face I to the short-section working face III on the left side for mining, transferring mining equipment of the short-section working face II to the short-section working face IV on the right side for mining, transferring coal gangue generated in the mining of the long-section working face to the short-section working face III and the short-section working face IV for filling, forming a goaf after the mining of the long-section working face I, and directly caving the goaf.
e. And d, after the short section working face III and the short section working face IV are mined, respectively tunneling and cutting holes, respectively arranging the long section working face II and the long section working face III, and repeating the step d, so that the continuous mining of the short section working face filling mining and the long section working face efficient recovery is realized, and by analogy, the mining of the coal seam of the whole well field is completed.
All the short section working faces have the same width, and the width is determined by a formula w ═ Q/(2l ×, w is less than or equal to 60m, the specific size is determined by the solid waste amount Q, wherein l is the length of the short section working face, and h is the mining height of the short section working face.
The width of all the long working faces is 150-300 m.
And the width of the retained roadway reserved after the short-section working face is filled is 4-6 m.
Has the advantages that: due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages:
(1) the solid waste of the mine can be filled into the working face of the short section, the problem of stacking the solid waste on the ground is solved, the requirement that the underground solid waste is not loaded into the mine is met, the waste rock treatment cost is reduced, the damage to the ecological environment is reduced, and the sustainable development of the mine is facilitated.
(2) After the long-section working face is mined, the short-section working faces on the two sides are simultaneously filled and mined, and the continuous mining system for short-section filling mining and long-section efficient mining is realized.
(3) The roadway is formed by filling the short-section working face goaf with solid waste, so that coal pillars are eliminated, and the recovery rate of resources is improved.
Drawings
FIG. 1 is a schematic short-cut face mining view of a clean, efficient coal mining method of the present invention;
FIG. 2 is a schematic illustration of long face mining with a clean and efficient coal mining method of the present invention;
FIG. 3 is a schematic diagram of the efficient stoping of a long-term working face of a short-term working face of the clean and efficient coal mining method of the invention.
In the figure: 11-short section working face I; 12-short section working face II; 13-short section working face III; 14-short section working face IV; 21-long section working face I; 22-long section working face II; 23-long section working face III; 3-lane keeping; 4-cutting the eye; and 5-a goaf.
Detailed Description
An embodiment of the invention is further described below with reference to figures 1-3:
the clean and efficient coal mining method disclosed by the invention comprises the following steps of:
a. calculating the volume of solid waste generated by the existing mine, wherein the solid waste comprises underground coal gangue, ground coal gangue and fly ash;
b. arranging a long section working face 21 for filling mine solid wastes on a coal seam of a mine field, wherein the width of the long section working face is 150-300 m, arranging a short section working face I11 and a short section working face II 12 on two sides of the long section working face 21 respectively, arranging the width of the short section working face as w, wherein the widths of all the short section working faces are the same, and the specific size is determined by the solid waste amount Q by using a formula w which is Q/(2l h) and w is not more than 60m, wherein l is the length of the short section working face, and h is the mining height of the short section working face; debugging coal mining machines, hydraulic supports and belt conveyor equipment in a short-section working face I11 and a short-section working face II 12, simultaneously mining the short-section working face I and the short-section working face II, filling solid waste of an existing mine and coal gangue generated in mining, performing anchor rod supporting on the edge of a filling face and the side of solid coal to reserve entry retaining 3 on two sides of the filling face, wherein the width of the entry retaining 3 reserved after the two short-section working faces are filled is 4-6 m;
c. after the short-section working face I11 and the short-section working face II 12 are mined, the open-cut hole 4 is tunneled between the short-section working face I11 and the short-section working face II 12 by using a tunneling machine, so that the retained roadway and the open-cut hole 4 reserved on the short-section working face I11 and the short-section working face II 12 form a long-section working face mining system;
d. and (3) mining the long-section working face I21, simultaneously transferring mining equipment of the short-section working face I11 to the short-section working face III 14 on the left side for mining, transferring mining equipment of the short-section working face II 12 to the short-section working face IV 13 on the right side for mining, transferring coal gangue generated in the mining of the long-section working face 21 to the short-section working face III 14 and the short-section working face IV 13 for filling, forming a goaf 5 after the mining of the long-section working face I21, and directly caving the goaf.
e. And d, after the short section working face III 14 and the short section working face IV 13 are mined, respectively tunneling and cutting holes, respectively arranging the long section working face II 22 and the long section working face III 23, and repeating the step d, so that the continuous mining of the short section working face filling mining and the long section working face efficient recovery is realized, and by analogy, the mining of the coal bed of the whole well field is completed.
Claims (1)
1. A clean and efficient coal mining method is characterized by comprising the following steps:
a. calculating the volume of solid waste generated by the existing mine, wherein the solid waste comprises underground coal gangue, ground coal gangue and fly ash;
b. a long-section working face I (21) used for filling mine solid waste is arranged in a coal seam of a mine field, a short-section working face I (11) and a short-section working face II (12) are respectively arranged on two sides of the long-section working face I (21), and the short-section working faces are arranged in a width modewDebugging coal mining machines, hydraulic supports and belt conveyor equipment in a short-section working face I (11) and a short-section working face II (12), mining the short-section working face I and the short-section working face II simultaneously, filling solid waste of an existing mine and coal gangue generated in mining, and carrying out anchor rod supporting on the edge of a filling face and the side of solid coal to keep entry retaining devices (3) on two sides of the filling face;
c. after the short-section working face I (11) and the short-section working face II (12) are mined, a heading machine is used for heading an open cutting hole (4) between the short-section working face I (11) and the short-section working face II (12), so that a retained roadway (3) and the open cutting hole (4) reserved on the short-section working face I (11) and the short-section working face II (12) form a long-section working face mining system;
d. mining the long-section working face I (21), simultaneously transferring mining equipment of the short-section working face I (11) to the short-section working face III (14) on the left side for mining, transferring mining equipment of the short-section working face II (12) to the short-section working face IV (13) on the right side for mining, transferring coal gangue generated in the mining of the long-section working face I (21) to the short-section working face III (14) and the short-section working face IV (13) for filling, forming a goaf (5) after the mining of the long-section working face I (21), and directly caving the goaf;
e. after the short-section working face III (14) and the short-section working face IV (13) are exploited, respectively tunneling a cutting hole (4), respectively arranging a long-section working face II (22) and a long-section working face III (23), and repeating the step d, so that the continuous exploitation of the short-section working face filling exploitation and the long-section working face efficient extraction is realized, and the like, the exploitation of the coal seam of the whole well field is completed;
all the short section working faces have the same width and use the formulaw=Q/(2l*h)，wIs determined to be less than or equal to 60m, the specific size is determined by the solid waste amount Q, in the formula,lthe length of the working face is a short section,hthe short-section working face mining height;
the width of the long section working surface I (21), the width of the long section working surface II (22) and the width of the long section working surface III (23) are 150m ~ 300 m;
and the width of the retained roadway (3) reserved after the short-section working face I (11), the short-section working face II (12), the short-section working face III (14) and the short-section working face IV (13) are filled is 4 ~ 6 m.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711290893.8A CN108331580B (en) | 2017-12-08 | 2017-12-08 | Clean and efficient coal mining method |
| JP2018539320A JP6688397B2 (en) | 2017-12-08 | 2018-03-13 | Clean and efficient mining method |
| PCT/CN2018/078771 WO2019109535A1 (en) | 2017-12-08 | 2018-03-13 | Clean and efficient coal mining method |
| AU2018208634A AU2018208634B2 (en) | 2017-12-08 | 2018-03-13 | Clean and efficient coal mining method |
| US16/080,250 US20210189876A1 (en) | 2017-12-08 | 2018-03-13 | Clean and efficient coal mining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711290893.8A CN108331580B (en) | 2017-12-08 | 2017-12-08 | Clean and efficient coal mining method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108331580A CN108331580A (en) | 2018-07-27 |
| CN108331580B true CN108331580B (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711290893.8A Active CN108331580B (en) | 2017-12-08 | 2017-12-08 | Clean and efficient coal mining method |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20210189876A1 (en) |
| JP (1) | JP6688397B2 (en) |
| CN (1) | CN108331580B (en) |
| AU (1) | AU2018208634B2 (en) |
| WO (1) | WO2019109535A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707380A (en) * | 2018-11-09 | 2019-05-03 | 内蒙古福城矿业有限公司 | A kind of coal anaerobic recovery method |
| CN113622916B (en) * | 2021-07-12 | 2024-04-09 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Stope point column supporting and reinforcing and recycling method |
Citations (5)
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| CN102230396A (en) * | 2011-05-31 | 2011-11-02 | 大连大学 | Filling method capable of exploring while filling coal mine goaf |
| CN103437765A (en) * | 2013-07-19 | 2013-12-11 | 中国矿业大学(北京) | Coal mine rock stratum mobile control mining-filling-preserving coupled coordination mining method |
| CN104775819A (en) * | 2015-03-27 | 2015-07-15 | 中国矿业大学 | Deep inclined coal seam mining roadway mine pressure control mining method |
| CN104775816A (en) * | 2015-02-27 | 2015-07-15 | 中国矿业大学 | Isolated grouting-filling mining method for overburden rock without village migration under cut-side local pressed-coal conditions |
| CN105298496A (en) * | 2015-12-17 | 2016-02-03 | 冀中能源集团有限责任公司 | Full-mining and full-filling coal mining method with reserved working face coal pillar |
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| SU1145135A1 (en) * | 1983-10-31 | 1985-03-15 | Донецкий Ордена Трудового Красного Знамени Политехнический Институт | Scraper-planer unit |
| CN100567703C (en) * | 2005-05-19 | 2009-12-09 | 兖矿集团有限公司 | Comprehensive coal-mining process by using long wall mining method |
| CN101372891B (en) * | 2008-06-10 | 2010-08-11 | 沈阳市华祥矿山机械厂 | Strip filling integral backstopping coal mining method |
| CN101737049B (en) * | 2008-11-25 | 2012-06-20 | 宝钢集团上海梅山有限公司 | Multi-working face circulating development driving production organization method |
| CN101749020A (en) * | 2010-01-26 | 2010-06-23 | 淄博市王庄煤矿 | Forward coal mining by filling method |
| CN102996131B (en) * | 2012-12-10 | 2014-10-29 | 中国矿业大学 | Solid-filling coal mining method with two pre-excavating tunnels for advancing |
| CN103993881A (en) * | 2014-05-21 | 2014-08-20 | 中国矿业大学 | Long-wall roadway type cemented filling mining method |
| CN106522948A (en) * | 2016-11-25 | 2017-03-22 | 山东科技大学 | Short-wall waste rock gluing continuous mining and continuous filling mining method |
-
2017
- 2017-12-08 CN CN201711290893.8A patent/CN108331580B/en active Active
-
2018
- 2018-03-13 WO PCT/CN2018/078771 patent/WO2019109535A1/en active Application Filing
- 2018-03-13 JP JP2018539320A patent/JP6688397B2/en not_active Expired - Fee Related
- 2018-03-13 US US16/080,250 patent/US20210189876A1/en not_active Abandoned
- 2018-03-13 AU AU2018208634A patent/AU2018208634B2/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230396A (en) * | 2011-05-31 | 2011-11-02 | 大连大学 | Filling method capable of exploring while filling coal mine goaf |
| CN103437765A (en) * | 2013-07-19 | 2013-12-11 | 中国矿业大学(北京) | Coal mine rock stratum mobile control mining-filling-preserving coupled coordination mining method |
| CN104775816A (en) * | 2015-02-27 | 2015-07-15 | 中国矿业大学 | Isolated grouting-filling mining method for overburden rock without village migration under cut-side local pressed-coal conditions |
| CN104775819A (en) * | 2015-03-27 | 2015-07-15 | 中国矿业大学 | Deep inclined coal seam mining roadway mine pressure control mining method |
| CN105298496A (en) * | 2015-12-17 | 2016-02-03 | 冀中能源集团有限责任公司 | Full-mining and full-filling coal mining method with reserved working face coal pillar |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019109535A1 (en) | 2019-06-13 |
| JP2020506309A (en) | 2020-02-27 |
| AU2018208634B2 (en) | 2020-01-02 |
| AU2018208634A1 (en) | 2019-06-27 |
| US20210189876A1 (en) | 2021-06-24 |
| CN108331580A (en) | 2018-07-27 |
| JP6688397B2 (en) | 2020-04-28 |
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