CN101353963A - Vacant field coal excavating method of high-dipping coal bed slotted hole blasting unmanned operation working face - Google Patents
Vacant field coal excavating method of high-dipping coal bed slotted hole blasting unmanned operation working face Download PDFInfo
- Publication number
- CN101353963A CN101353963A CNA2008100646795A CN200810064679A CN101353963A CN 101353963 A CN101353963 A CN 101353963A CN A2008100646795 A CNA2008100646795 A CN A2008100646795A CN 200810064679 A CN200810064679 A CN 200810064679A CN 101353963 A CN101353963 A CN 101353963A
- Authority
- CN
- China
- Prior art keywords
- coal
- perforating
- lane
- road
- work plane
- 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.)
- Granted
Links
Images
Landscapes
- Catching Or Destruction (AREA)
Abstract
The invention provides an open stope mining method in a long-hole blasting unmanned working face of a steep coal seam; the coal is conveyed by returning air in an upper gangway of a working face and inletting air in a lower gangway; a drilling channel is arranged between the upper gangway and the lower gangway; segment protective coal pillars are reserved and arranged between the drilling channel and the lower gangway; a coal-putting port is arranged at equivalent intervals along the trend of the coal seam; a positive leaned working face is formed between the upper gangway and the drilling channel and stretches forward along the trend of the coal seam; the gangway arrangement is divided into two types: one is the arrangement mode of a shortwall working face, and the other is the arrangement mode of a longwall working face. The method solves the defects of low output, low working efficiency, low drivage ratio, high consumption of pit wood, high labor intensity, low recovery ratio and multiple unsafe factors, etc. existing in the application and effect of the current mining method of the steep coal seam in varying degrees, thereby improving the competitiveness of the mining technologies of the steep coal seam in the current market economy.
Description
(1) technical field
The invention belongs to the coal mining technical field, be specifically related to a kind of unmanned operation coal-mining method.
(2) background technology
At present, because half-edge coal seam geological conditions complexity, and the particular difficulty of exploitation half-edge coal seam, though the type of existing coal-mining method is a lot, as overhand mining, the puppet of bowing is the intensive coal-mining method of segment level tiltedly, the wire saw strike long wall method, the standard machinery strike long wall method, warehouse style coal-mining method, flexible type shield coal-mining method etc., but all exist output and work efficiency low to some extent aspect application and the effect, drivage ratio and hole consumption are high, labour intensity is big, the rate of extraction is hanged down and defectives such as unsafe factor is many, causes the competitiveness of steeply-inclined seam mining technology in current market economy relatively poor.
(3) summary of the invention
The object of the present invention is to provide a kind of back production work efficiency height, usage quantities such as mine timber, individual prop, articulated roof beam, flexible type shield reduce, gunpowder, detonator consume low, and direct cost is low, the half-edge coal seam slotted hole blasting unmanned operation working face barnyard coal-mining method that per unit area yield is stable.
The object of the present invention is achieved like this: lane return air on the stope, following lane inlet air fortune coal; Between Shang Xiang and Xia Xiang tunnel, arrange the perforating road, between perforating road and following lane, stay and establish the segment protection coal column that across pitch whenever keeps at a certain distance away and arranges a coal discharge outlet; Form the anacline work plane between last lane and the perforating road, push ahead along the bearing direction; Personnel do not enter stope, the work plane non-support, and the workman is in the perforating road; under the protection in tunnel on the tunnel side of helping along the coal seam perforating; the slotted hole blasting coal breakage is adopted the coal that falls and is put into down the lane from coal discharge outlet, transports by the scratch board conveyor or the mine car that are located at down in the lane.
Roadway arrangement of the present invention is divided into two kinds, and a kind of is the shortwall arrangement, and a kind of is the coal wall arrangement.
1, shortwall arrangement:
Lane return air on the stope, following lane inlet air fortune coal is arranged three perforating roads between Shang Xiang and following lane; Next bar perforating road can excavate in advance, also can dig in advance and send, with 6 meters at interval in following lane; Establish the segment protection coal column staying between next bar perforating road and the following lane, the every spacing of across pitch is arranged a coal discharge outlet for 4.1 meters; Form three the little work planes of the anacline that links to each other in upper, middle and lower between Shang Xiang and three the perforating roads, push ahead simultaneously; Three work planes are blown out respectively successively by top-down order or once segment blast simultaneously.
Process for stoping is simple especially; personnel do not enter stope; the work plane non-support; the workman is in the perforating road; under the protection in tunnel on the tunnel side of helping along the coal seam perforating; the slotted hole blasting coal breakage is adopted the coal that falls and is put into down the lane from coal discharge outlet, transports by the scratch board conveyor or the mine car that are located at down in the lane.
The work plane unmanned operation, work plane and barnyard whole wind pressure ventilation, a part is distinguished and admirable via lane under the work plane and transportation inclined gallery, enters perforating road 1, three face without supports that flushing links to each other up and down; A part is distinguished and admirable via lane under the work plane, enters barnyard from the coal discharge outlet near the soft group of barnyard.The return air of work plane and barnyard imports lane on the work plane.Across pitch keeps at a certain distance away and arranges transportation inclined gallery along coal seam tendency, and three work planes are adopted and stopped back production to apart from transportation inclined gallery certain distance the time, stays and establishes a tendency coal column, and Shang Xiang, three perforating roads and coal discharge outlet are all sealed.
2, coal wall arrangement:
The difference of coal wall arrangement and shortwall arrangement is: only arranging a perforating road, is the coal wall between perforating road and the last lane, uses the special jewel perforating; A part is distinguished and admirable to enter perforating road 1 via lane under the work plane and transportation inclined gallery, the flushing face without support; A part is distinguished and admirable via lane under the work plane, enters barnyard from the coal discharge outlet near the soft group of barnyard; Work plane stops back production when adopting to distance transportation inclined gallery certain distance, stays and establishes a tendency coal column, will go up lane, perforating road and coal discharge outlet and all seal; Other are identical with the shortwall arrangement.
The invention solves existing coal-mining method use and effect aspect the output that all exists to some extent and work efficiency is low, drivage ratio and mine timber consume high, how labour intensity is big, the rate of extraction is low and unsafe factor defective such as, has improved the competitiveness of steeply-inclined seam mining technology in current market economy.
Compare with existing coal-mining method, safe condition is greatly improved, the back production work efficiency improves more than 2～5 times, usage quantities such as mine timber, individual prop, articulated roof beam, flexible type shield reduce more than 90%, gunpowder, detonator consumption reduce more than 50%, and direct cost reduces more than 60%, and per unit area yield improves more than 30%, the annual cost of saving of work plane is more than 1,800,000 yuan, and ton coal direct economic benefit is more than 20 yuan.
(4) description of drawings
Fig. 1 is first kind of embodiment shortwall arrangement schematic diagram;
Fig. 2 is second kind of embodiment coal wall arrangement schematic diagram.
(5) specific embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments:
Half-edge coal seam slotted hole blasting unmanned operation working face barnyard coal-mining method roadway arrangement mode of the present invention is divided into two kinds, and a kind of is the shortwall arrangement, and a kind of is the coal wall arrangement.
Embodiment 1: in conjunction with Fig. 1, the shortwall arrangement is:
Lane 4 is got 36～38 meters with following lane 3 inclination spacings on the stope, last lane return air, and following lane inlet air fortune coal is arranged three perforating roads 1 between Shang Xiang and following lane; Next bar perforating road can excavate in advance, also can dig in advance and send, with 6 meters at interval in following lane 3; Establish segment protection coal column 8 staying between next bar perforating road and the following lane 3, a coal discharge outlet 6 is arranged for 4.1 meters in the every interval of across pitch; Across pitch whenever keeps at a certain distance away and arranges transportation inclined gallery 5 along the coal seam tendency, exploiting field one wing strike length is divided into several pieces, these transportation inclined gallery are different according to time and space, sometimes be the open-off cut of producing " piece ", sometimes being the inlet air tunnel that produces " piece " perforating road, may be again to prepare the haulage drift that the perforating road is sent in " piece " pick sometimes; Electricity consumption scraping coal when the perforating road tunnels; Three little work planes of anacline that upper, middle and lower link to each other have been formed between last lane 4 and three the perforating roads 1; Process for stoping is simple especially, and personnel do not enter stope, the work plane non-support; the workman in perforating road 1, under the protection in tunnel on the tunnel side of helping along the coal seam perforating, the slotted hole blasting coal breakage; adopt the coal that falls and be put into down the lane, transport by the scratch board conveyor that is located at down in the lane from coal discharge outlet 6.Determine boring array pitch and every gang drill hole number according to coal seam thickness.Three the continuous little work planes in upper, middle and lower are pushed ahead simultaneously.Three work planes are blown out respectively successively by top-down order or once segment blast simultaneously.Three work planes are adopted and are stopped back production to apart from transportation inclined gallery 5 certain distances the time, stay and establish a tendency coal column, will go up lane 4, three perforating roads 1 and coal discharge outlet 6 and all seal.
Work plane and barnyard 10 whole wind pressure ventilations, a part is distinguished and admirable via lane under the work plane and transportation inclined gallery, enters perforating road 1, three face without supports that flushing links to each other up and down; A part is distinguished and admirable via lane under the work plane, enters barnyard 10 from the coal discharge outlet 6 near barnyard 10 soft groups.The return air of work plane and barnyard 10 imports lane on the work plane.
Interblock stopping sequence back far away earlier is near, drawing back.Piece back production at a distance, piece is prepared nearby; Piece back production at a distance finishes, coal discharge outlet 6, three perforating roads 1, on lane 4 etc. locate to be provided with airtight 9, outwards exploit external block more successively.
Embodiment 2: in conjunction with Fig. 2, the coal wall arrangement is:
The difference of coal wall arrangement and shortwall arrangement is: only arranging a perforating road 1, is the coal wall between perforating road 1 and the last lane 4, uses the special jewel perforating; Work plane and barnyard 10 whole wind pressure ventilations, a part is distinguished and admirable to enter perforating road 1 via lane under the work plane and transportation inclined gallery, the flushing face without support; A part is distinguished and admirable via lane under the work plane, enters barnyard 10 from the coal discharge outlet 6 near barnyard 10 soft groups.Work plane stops back production when adopting to distance transportation inclined gallery 5 certain distances, stays and establishes a tendency coal column, locates to be provided with airtight 9 at last lane 4, perforating road 1 and coal discharge outlet 6 etc.; Other indifferences.
The coal wall arrangement is compared with the shortwall arrangement, and the tunnelling rate is low, and it is calm to continue, the output height, But require the directed quality height of boring.
Claims (3)
1, a kind of half-edge coal seam slotted hole blasting unmanned operation working face barnyard coal-mining method is characterized in that: lane return air on the stope, following lane inlet air fortune coal; Roadway arrangement perforating road between Shang Xiang and following lane stays between perforating road and following lane and establishes the segment protection coal column, and across pitch whenever keeps at a certain distance away and arranges a coal discharge outlet; Form the anacline work plane between last lane and the perforating road, push ahead along the bearing direction; Personnel do not enter stope, the work plane non-support, and the workman is in the perforating road; under the protection in tunnel on the tunnel side of helping along the coal seam perforating; the slotted hole blasting coal breakage is adopted the coal that falls and is put into down the lane from coal discharge outlet, transports by the scratch board conveyor or the mine car that are located at down in the lane.
2, half-edge coal seam slotted hole blasting unmanned operation working face barnyard coal-mining method according to claim 1, it is characterized in that: described roadway arrangement mode is the shortwall arrangement; In the shortwall arrangement, between Shang Xiang and following lane, arrange three perforating roads, next bar perforating road can excavate in advance, also can dig in advance and send; Establish the segment protection coal column staying between next bar perforating road and the following lane, across pitch whenever keeps at a certain distance away and arranges a coal discharge outlet; Form three the little work planes of the anacline that links to each other in upper, middle and lower between Shang Xiang and three the perforating roads, push ahead simultaneously; Three work planes are blown out respectively successively by top-down order or once segment blast simultaneously; The work plane unmanned operation; Work plane and barnyard whole wind pressure ventilation, a part is distinguished and admirable via lane under the work plane and transportation inclined gallery, enters the perforating road, three face without supports that flushing links to each other up and down; A part is distinguished and admirable via lane under the work plane, enters barnyard from the coal discharge outlet near the soft group of barnyard; The return air of work plane and barnyard imports lane on the work plane; Across pitch keeps at a certain distance away and arranges transportation inclined gallery along coal seam tendency, and three work planes are adopted and stopped back production to apart from transportation inclined gallery certain distance the time, stays and establishes a tendency coal column, then Shang Xiang, three perforating roads and coal discharge outlet is all sealed.
3, half-edge coal seam slotted hole blasting unmanned operation working face barnyard coal-mining method according to claim 1, it is characterized in that: described roadway arrangement mode is the coal wall arrangement; In the shortwall arrangement, between Shang Xiang and following lane, only arrange a perforating road, be a coal wall between perforating road and the last lane, use the special jewel perforating; The perforating road can excavate in advance, also can dig in advance and send; Stay between perforating road and following lane and establish the segment protection coal column, across pitch whenever keeps at a certain distance away and arranges a coal discharge outlet; The work plane unmanned operation; Work plane and barnyard whole wind pressure ventilation, a part is distinguished and admirable to enter the perforating road via lane under the work plane and transportation inclined gallery, the flushing face without support; A part is distinguished and admirable via lane under the work plane, enters barnyard from the coal discharge outlet near the soft group of barnyard; The return air of work plane and barnyard imports lane on the work plane; Across pitch keeps at a certain distance away and arranges transportation inclined gallery along the coal seam tendency, and work plane stops back production when adopting to distance transportation inclined gallery certain distance, stays and establishes a tendency coal column, will go up lane, perforating road and coal discharge outlet then and all seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100646795A CN101353963B (en) | 2008-06-06 | 2008-06-06 | Vacant field coal excavating method of high-dipping coal bed slotted hole blasting unmanned operation working face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100646795A CN101353963B (en) | 2008-06-06 | 2008-06-06 | Vacant field coal excavating method of high-dipping coal bed slotted hole blasting unmanned operation working face |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101353963A true CN101353963A (en) | 2009-01-28 |
| CN101353963B CN101353963B (en) | 2011-02-09 |
Family
ID=40306944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100646795A Expired - Fee Related CN101353963B (en) | 2008-06-06 | 2008-06-06 | Vacant field coal excavating method of high-dipping coal bed slotted hole blasting unmanned operation working face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101353963B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915102A (en) * | 2010-08-20 | 2010-12-15 | 天地科技股份有限公司 | Comprehensive mechanization coal-mining method of heavy pitch course long well |
| CN102392643A (en) * | 2011-11-17 | 2012-03-28 | 中国矿业大学 | Under-building filling, mining and coal pillar recovering method |
| CN102434157A (en) * | 2011-09-23 | 2012-05-02 | 西安建筑科技大学 | V-shaped groove top plate closing method for goaf area |
| CN103485786A (en) * | 2013-09-11 | 2014-01-01 | 太原理工大学 | Steeply inclined coal seam strike long-wall mechanization mining method |
| CN104153781A (en) * | 2014-08-08 | 2014-11-19 | 西北矿冶研究院 | Inverted order induced fracturing caving mining method |
| CN104265294A (en) * | 2014-10-22 | 2015-01-07 | 四川广旺能源发展（集团）有限责任公司 | Coal pillar-free mining technology for blasting mining face of steeply dipping seam |
| CN104594900A (en) * | 2014-11-28 | 2015-05-06 | 贵州晨辉达矿业工程设计有限公司 | Mining method with subsection tendency in moving direction |
| CN109779630A (en) * | 2019-02-20 | 2019-05-21 | 北京昊华能源股份有限公司 | A kind of half-edge coal seam coal-mining method |
| CN113202473A (en) * | 2021-05-21 | 2021-08-03 | 中煤第七十一工程处有限责任公司 | Underground mine broken rock downward mining method |
-
2008
- 2008-06-06 CN CN2008100646795A patent/CN101353963B/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915102A (en) * | 2010-08-20 | 2010-12-15 | 天地科技股份有限公司 | Comprehensive mechanization coal-mining method of heavy pitch course long well |
| CN102434157A (en) * | 2011-09-23 | 2012-05-02 | 西安建筑科技大学 | V-shaped groove top plate closing method for goaf area |
| CN102434157B (en) * | 2011-09-23 | 2013-07-31 | 西安建筑科技大学 | V-shaped groove top plate closing method for goaf area |
| CN102392643B (en) * | 2011-11-17 | 2014-01-15 | 中国矿业大学 | Under-building filling, mining and coal pillar recovering method |
| CN102392643A (en) * | 2011-11-17 | 2012-03-28 | 中国矿业大学 | Under-building filling, mining and coal pillar recovering method |
| CN103485786B (en) * | 2013-09-11 | 2016-01-20 | 太原理工大学 | A kind of half-edge coal seam moves towards longwall machinery and melts mining method |
| CN103485786A (en) * | 2013-09-11 | 2014-01-01 | 太原理工大学 | Steeply inclined coal seam strike long-wall mechanization mining method |
| CN104153781A (en) * | 2014-08-08 | 2014-11-19 | 西北矿冶研究院 | Inverted order induced fracturing caving mining method |
| CN104265294A (en) * | 2014-10-22 | 2015-01-07 | 四川广旺能源发展（集团）有限责任公司 | Coal pillar-free mining technology for blasting mining face of steeply dipping seam |
| CN104594900A (en) * | 2014-11-28 | 2015-05-06 | 贵州晨辉达矿业工程设计有限公司 | Mining method with subsection tendency in moving direction |
| CN109779630A (en) * | 2019-02-20 | 2019-05-21 | 北京昊华能源股份有限公司 | A kind of half-edge coal seam coal-mining method |
| CN113202473A (en) * | 2021-05-21 | 2021-08-03 | 中煤第七十一工程处有限责任公司 | Underground mine broken rock downward mining method |
| CN113202473B (en) * | 2021-05-21 | 2023-12-08 | 中煤第七十一工程处有限责任公司 | Underground mine broken rock downward mining method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101353963B (en) | 2011-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101353963B (en) | Vacant field coal excavating method of high-dipping coal bed slotted hole blasting unmanned operation working face | |
| CN100567703C (en) | Comprehensive coal-mining process by using long wall mining method | |
| CN103628877B (en) | A kind of multilayer gentle dip is thin-in thick mineral deposit filling mining method | |
| CN104088643B (en) | A kind of high-dipping point blank coal seam Sub-Level Caving coal-mining method | |
| CN101737047A (en) | Method for mining coal of steeply inclined thin seam | |
| CN104141495B (en) | Filling mining method for gently inclined medium-thickness phosphate ore body | |
| CN100560936C (en) | A kind of method of coal mine downhole reproduction and back production | |
| CN103485786B (en) | A kind of half-edge coal seam moves towards longwall machinery and melts mining method | |
| CN101725352A (en) | Method for filling solid and fully mechanizing and recovering room type coal pillar | |
| CN101302931B (en) | Method for extracting rim angle coal and re-extracting after warehouse coal extracting | |
| CN101942999A (en) | Coal mining method for high-dipping low seam | |
| CN101509377A (en) | High-dipping ore block house column mining method | |
| CN103104260A (en) | Comprehensive-conventional mechanical mining double-unit face coal mining method under complicated geological conditions | |
| CN102031972B (en) | L-shaped mining method under open-underground mining | |
| CN109915197A (en) | A kind of method that rock gangway km directional long borehole substitution middle part bottom pumping rock gangway is taken out at bottom | |
| CN109252860A (en) | A kind of girdle continuous milling machine high mechanization recovery method | |
| CN210829265U (en) | Top coal caving mining system for medium-thickness coal seam with extra-large dip angle | |
| CN104343453B (en) | Thick mineral deposit filling mining method in a kind of low-angle dip | |
| CN103362511B (en) | High-dipping medium-thickness seam step is without pillar working | |
| CN110578523A (en) | Method and system for mining top coal of medium-thickness coal seam with extra-large dip angle | |
| CN207829887U (en) | A kind of single steep-inclined thick coal seam coal mining system | |
| CN105649627B (en) | A kind of single girdle coal-mining method of high-dipping | |
| CN104989402A (en) | Medium-deep hole room pillar mining method for limestone underground mine mining | |
| CN101737051A (en) | Covering layer forming method of blind ore bodies | |
| CN101403303B (en) | Tunnel layout method suitable for residual mining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HEILONGJIANG SCIENCE + TECHNOLOGY COLLEGE Free format text: FORMER NAME: LU ZHANYUAN |
|
| CP03 | Change of name, title or address |
Address after: 150027 No. 1, Sugar Mill Street, Harbin, Heilongjiang, Songbei Patentee after: Heilongjiang Institute of Science and Technology Patentee after: Lu Zhanyuan Address before: 150027 , 1 Sugar Mill Street, Harbin, Heilongjiang, Heilongjiang Institute of Science and Technology Patentee before: Lu Zhanyuan Patentee before: Heilongjiang Institute of Science and Technology |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20160606 |