CN104594900A - Mining method with subsection tendency in moving direction - Google Patents

Mining method with subsection tendency in moving direction Download PDF

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Publication number
CN104594900A
CN104594900A CN201410700435.7A CN201410700435A CN104594900A CN 104594900 A CN104594900 A CN 104594900A CN 201410700435 A CN201410700435 A CN 201410700435A CN 104594900 A CN104594900 A CN 104594900A
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CN
China
Prior art keywords
mining
coal
work plane
tendency
cut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410700435.7A
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Chinese (zh)
Inventor
刘维建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUIZHOU CHENHUIDA MINING ENGINEERING DESIGN Co Ltd
Original Assignee
GUIZHOU CHENHUIDA MINING ENGINEERING DESIGN Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GUIZHOU CHENHUIDA MINING ENGINEERING DESIGN Co Ltd filed Critical GUIZHOU CHENHUIDA MINING ENGINEERING DESIGN Co Ltd
Priority to CN201410700435.7A priority Critical patent/CN104594900A/en
Publication of CN104594900A publication Critical patent/CN104594900A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • E21C41/18Methods of underground mining; Layouts therefor for brown or hard coal

Abstract

The invention discloses a mining method with subsection tendency in a moving direction; through planning design on a ventilation line, a stoping mode, a coal transportation line and middle open-off cut shoring, a stoping working face is in a horizontal state, the roof safety condition is improved, and thus the safety of workers is better guaranteed; the method is applicable to thin and medium-thick coal seam stoping, especially for coal seam with a stoping inclination angle of 25 DEG to 40 DEG.

Description

Walking upwards segmentation tendency coal-mining method
Technical field
The invention belongs to subterranean coal production technique field, particularly relate to the coal-mining method in the coal seam of a kind of back production inclination angle between 25 ° ~ 40 °.
Background technology
Former Sichuan Furong Mine Administration Bureau fir colliery, some inclined seam work planes, adopt warehouse style coal-mining method, and because seam inclination is less than 45 °, when putting storehouse, coal fails to lay down sometimes, and work plane is blocked.In order to solve the Problems of Mining under this condition of coal seam occurrence, a kind of new coal-mining method must be found.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of and walking upwards segmentation tendency coal-mining method, with overcome back production inclination angle, coal seam between 25 ° ~ 40 ° time, difficulty of mining, the problem that potential safety hazard is large.
The technical solution used in the present invention is: a kind of comprise vent line, back production mode walking upwards segmentation tendency coal-mining method, fortune seam road and in cut ramus ophthalmicus and protect.
Described vent line is: move towards every about 120m construction one along work plane and cut eye, work plane tendency is long is advisable with about 150m, eye is cut and machine air way is formed a little work plane with two, the draft type entering one time with two carries out stope ventilation, under exploiting during block work plane, above piece of work plane machine lane as lower piece of tailentry, following block work plane air way and in cut eye, machine lane as work plane air intake lane, formation two enters a face-airing mode like this.
Described back production mode is: Mining Area mining sequence is exploited from lower to upper, namely first adopts lower piece of work plane, then adopts a piece work plane; In work plane, mining sequence advances from lower to upper, takes by the mining type of both wings to pushed at a section inner working face.
Support pattern takes hydraulic prop or fully mechanized mining supporter, and coal breakage mode adopts big gun to adopt or combines adopts coal breakage.
Described fortune seam road is: in drag conveyor is transported to, cut eye → certainly slip to work plane machine lane → exploiting field by work plane and transport coal measures and unite.
Cut in described ramus ophthalmicus protect for: in cut eye along side, goaf adopt close standing props add bamboo springboard close the goaf.During back production second fritter work plane, back production limit, limit withdraws in first piece of work plane and cuts a close standing props.
Coal-mining method of the present invention is applicable to the little coal seam of gas bearing capacity, when coal seam gas-bearing capacity is large, when having outburst danger, is not suitable for using.Centering is cut eye and is carried out along Kong Hu lane and add air duct fabric after prop, to strengthen tightness, reduces goaf air leaking.To adopting termination, left and right, face 5 ~ 10m section, manually spilling lime thickness is 5mm.
During back production of the present invention, must ventilating management be strengthened, prevent goaf gas from pouring in stope, should the air quantity of the upper and lower intake entry of reasonable adjusting, upper air inlet gallery air quantity, slightly larger than lower intake entry, makes its blast suitable.
The movement of Scraper Conveyor in Mining Face of the present invention can adopt mechanical system or manually move slips.Machinery should be adopted to move in infeasible situation to slip manually moving to slip.
Relative to prior art, this coal-mining method of the present invention makes stope be in level, thus roof safety situation is improved, safety of workers is ensured preferably, shortcoming is that ventilating management is more difficult, to care should be used to careful use during this method back production of the projecting coal bed employing of high methane, note preventing gas accident, truly feasible measure must be taked to prevent gas accident.Be exactly the work plane not being suitable for the easy spontaneous combustion in coal seam in addition, if work plane leaks just easily heterogeneous goaf occurs, so require that the coal of work plane will reclaim totally as much as possible to the wind in goaf is more.Coal-mining method of the present invention is applicable to the back production of thin and medium seam.
Accompanying drawing explanation
Fig. 1 is work plane layout schematic diagram of the present invention.
Detailed description of the invention
A kind of comprise vent line, back production mode walking upwards segmentation tendency coal-mining method, fortune seam road and in cut ramus ophthalmicus and protect.Described vent line is: move towards every about 120m construction one along work plane and cut eye, work plane tendency is long is advisable with about 150m, eye is cut and machine air way is formed a little work plane with two, the draft type entering one time with two carries out stope ventilation, under exploiting during block work plane, above piece of work plane machine lane as lower piece of tailentry, following block work plane air way and in cut eye, machine lane as work plane air intake lane, formation two enters a face-airing mode like this.Described back production mode is: Mining Area mining sequence is exploited from lower to upper, namely first adopts lower piece of work plane, then adopts a piece work plane; In work plane, mining sequence advances from lower to upper, takes by the mining type of both wings to pushed at a section inner working face.Support pattern takes hydraulic prop or fully mechanized mining supporter, and coal breakage mode adopts big gun to adopt or combines adopts coal breakage.Described fortune seam road is: in drag conveyor is transported to, cut eye → certainly slip to work plane machine lane → exploiting field by work plane and transport coal measures and unite.Cut in described ramus ophthalmicus protect for: in cut eye along side, goaf adopt close standing props add bamboo springboard close the goaf.During back production second fritter work plane, back production limit, limit withdraws in first piece of work plane and cuts a close standing props.

Claims (3)

1., walking a upwards segmentation tendency coal-mining method, comprise vent line, back production mode, fortune seam road and in cut ramus ophthalmicus and protect, it is characterized in that:
Described vent line is, moves towards every 120m construct one and cut eye along work plane, cuts eye and machine air way is formed a little work plane with two, and the draft type entering a time with two carries out stope ventilation;
Described back production mode is that Mining Area mining sequence is exploited from lower to upper, and in work plane, mining sequence advances from lower to upper, takes by the mining type of both wings to pushed at a section inner working face;
Described fortune coal route is in drag conveyor is transported to, cut eye by work plane, then to from slipping to work plane machine lane, is finally exploiting field fortune coal measures system;
Cut in described ramus ophthalmicus protect into, in cut eye along side, goaf adopt close standing props add bamboo springboard close the goaf.
2. according to claim 1ly it is characterized in that: in described vent line walking upwards segmentation tendency coal-mining method, work plane tendency is long is 150m.
3. according to claim 1 walk upwards segmentation tendency coal-mining method, it is characterized in that: in described back production mode, hydraulic prop or fully mechanized mining supporter are taked in supporting, coal breakage adopt big gun adopt or combine adopts coal breakage.
CN201410700435.7A 2014-11-28 2014-11-28 Mining method with subsection tendency in moving direction Pending CN104594900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410700435.7A CN104594900A (en) 2014-11-28 2014-11-28 Mining method with subsection tendency in moving direction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410700435.7A CN104594900A (en) 2014-11-28 2014-11-28 Mining method with subsection tendency in moving direction

Publications (1)

Publication Number Publication Date
CN104594900A true CN104594900A (en) 2015-05-06

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CN201410700435.7A Pending CN104594900A (en) 2014-11-28 2014-11-28 Mining method with subsection tendency in moving direction

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106321137A (en) * 2016-08-29 2017-01-11 中国神华能源股份有限公司 Multi-channel ventilation system for fully mechanized coal mining face and ventilation method for withdraw support

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2135771C1 (en) * 1997-12-29 1999-08-27 Российский Университет Дружбы Народов Method for extracting thick steep coal seam by horizontal descending layers with complete filling of worked-out space
CN1474032A (en) * 2003-08-08 2004-02-11 中南大学 Continuous mining method of stepped sectional extruding and ore caving followed by filling
CN1607316A (en) * 2003-10-16 2005-04-20 新疆乌鲁木齐矿业(集团)有限责任公司 Top-coal caving method with horizontal sectional light-support in steep and close seams
CN1982649A (en) * 2005-12-14 2007-06-20 招金矿业股份有限公司大尹格庄金矿 Mining method
CN101353963A (en) * 2008-06-06 2009-01-28 路占元 Vacant field coal excavating method of high-dipping coal bed slotted hole blasting unmanned operation working face
CN102996131A (en) * 2012-12-10 2013-03-27 中国矿业大学 Solid-filling coal mining method with two pre-excavating tunnels for advancing
CN103362508A (en) * 2013-07-31 2013-10-23 六盘水师范学院 Mine development method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2135771C1 (en) * 1997-12-29 1999-08-27 Российский Университет Дружбы Народов Method for extracting thick steep coal seam by horizontal descending layers with complete filling of worked-out space
CN1474032A (en) * 2003-08-08 2004-02-11 中南大学 Continuous mining method of stepped sectional extruding and ore caving followed by filling
CN1607316A (en) * 2003-10-16 2005-04-20 新疆乌鲁木齐矿业(集团)有限责任公司 Top-coal caving method with horizontal sectional light-support in steep and close seams
CN1982649A (en) * 2005-12-14 2007-06-20 招金矿业股份有限公司大尹格庄金矿 Mining method
CN101353963A (en) * 2008-06-06 2009-01-28 路占元 Vacant field coal excavating method of high-dipping coal bed slotted hole blasting unmanned operation working face
CN102996131A (en) * 2012-12-10 2013-03-27 中国矿业大学 Solid-filling coal mining method with two pre-excavating tunnels for advancing
CN103362508A (en) * 2013-07-31 2013-10-23 六盘水师范学院 Mine development method

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Title
刘兵等: "残采区非规则综采面开采及过巷技术实践", 《中州煤炭》 *
绍继喜: "薄煤层对拉工作面开采工艺研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106321137A (en) * 2016-08-29 2017-01-11 中国神华能源股份有限公司 Multi-channel ventilation system for fully mechanized coal mining face and ventilation method for withdraw support

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Application publication date: 20150506