CN100344857C - Method of simplified advance wall type coal mining, gas collection and drainage - Google Patents
Method of simplified advance wall type coal mining, gas collection and drainage Download PDFInfo
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- CN100344857C CN100344857C CNB031254330A CN03125433A CN100344857C CN 100344857 C CN100344857 C CN 100344857C CN B031254330 A CNB031254330 A CN B031254330A CN 03125433 A CN03125433 A CN 03125433A CN 100344857 C CN100344857 C CN 100344857C
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Abstract
The present invention provides a method for simplified advance wall type coal mining, gas collection and gas drainage, which adopts a conventional wall type coal mining method as a base. A gas collecting lane is arranged between an exhausted area and ground. A gas drainage device is arranged at the outlet of the gas collecting lane for gas in the exhausted area gradually collecting in the gas collecting lane and eliminating by the gas drainage device. A conveying level lane and a level lane are respectively adjacent to the exhausted area. Dense row columns are respectively arranged on the upper walls of the conveying level lane and the level lane. When the present invention is used for forwards mining coal, the strong dense row columns can be immediately used for supporting on the upper wall of the conveying level lane by mining one meter. The present invention is simple and practicable, and has the advantages of strong operability, low combined cost, high safety and reliability. The present invention can effectively collect and discharge gas, and fundamentally prevent gas explosion accidents. The present invention has good use effect and easy popularization. If a supporting facility is added, gas resources can be fully utilized. The present invention can change harm to benefit.
Description
Technical field
The invention belongs to a kind of safe coal mining process, advance wall coal and gas of particularly a kind of simplification is collected and exhaust method.
Background technology
Conventional coal-mining method mainly contains wall coal method, lane formula coal-mining method, the pillar method of working.At present generally advocate and apply wide model for retreating the wall coal method, it is to finish and after forming air return system in the main shaft in colliery and ventilating shaft work, utilize the driving of haulage way and tailgate that the coal seam is divided into the cuboid bulk, further form the tunnel air return system, and then back production is carried out in the block coal seam of the cuboid that is divided into backward.In the process of digging laneway, it must adopt local fan to carry out secondary blast could get rid of gas, otherwise is difficult to get rid of.Common gas explosion accident generally all betides in the tunneling process in tunnel, and coal work Chang Yin is subjected to the influence and the interference of mechanical breakdown and factor such as artificial, is difficult to avoid the generation of gas explosion accident.
Summary of the invention
The present invention is directed to the problem and the drawback of the wall coal method that the retreats existence of above-mentioned routine, provide a kind of simple, cost is low, and is safe and reliable, can collect effectively and firedamp drainage, advance wall coal and gas of the simplification that fundamentally reaches prevention and solve gas explosion is collected and exhaust method.
Method of the present invention is based on conventional wall coal method, forms through improvement.It is that prong in the face of land and ventilation lane, border is provided with blower fan, and the prong of ventilation lane, border and gallery is in abutting connection with safety pillar, safety pillar and airtight adjacency are arranged.The left and right side that promotes main shaft respectively with upper and lower airtight adjacency, upper and lower airtight and safety pillar adjacency.Airtight, safety pillar one side respectively with the goaf adjacency, goaf one side is disposed with coal mining activity face pillar and coal mining activity face, opposite side and haulage way adjacency.Be provided with gas between goaf to the face of land and collect the lane, the drawing-off gas device is arranged at the exit that gas is collected the lane.The last wall of haulage way and gallery is respectively arranged with powerful intensive organ timbering, haulage way and gallery respectively with the goaf adjacency.
Method of the present invention is simple, and is workable, and integrated cost is low, safe and reliable, and it can be collected and firedamp drainage effectively, the generation that fundamentally reaches prevention and solve gas explosion accident.Its result of use is good, is easy to promote.If increase ancillary facility, can also utilize gas resources fully, become evil and be benefit.
Description of drawings
Fig. 1 is the schematic diagram that the present invention simplifies advance wall coal and gas collection and exhaust method.
The specific embodiment
Below in conjunction with above-mentioned accompanying drawing example method of the present invention is described in further detail.
The example of the inventive method comprises that blower fan 1, gas are collected lane 2, drawing-off gas device 3, promoted main shaft 4, the face of land 5, airtight 6, ventilation lane, border 7, safety pillar 8, goaf 9, gallery 10, powerful intensive organ timbering 11, air intake 12, haulage way 13, coal mining activity face pillar 14, coal mining activity face 15, gallery 16, return 17, powerful intensive organ timbering 18.
Method of the present invention is 5 to be provided with blower fan 1 with the prong in ventilation lane, border 7 on the face of land, and the prong of ventilation lane, border 7 and gallery 16 is in abutting connection with safety pillar 8 being arranged, safety pillar 8 and airtight 6 adjacency.Promote main shaft 4 left and right sides respectively with upper and lower airtight 6 adjacency, upper and lower airtight 6 with safety pillar 8 adjacency.Airtight 6, safety pillar 8 one sides respectively with goaf 9 adjacency, goaf 9 one sides are disposed with coal mining activity face pillar 14 and coal mining activity face 15, opposite side and haulage way 13 adjacency.Be provided with gas between goaf 9 to the face of land 5 and collect lane 2, drawing-off gas device 3 is arranged at the exit that gas is collected lane 2.Haulage way 13 is provided with the powerful intensive organ timbering made from steel 11 and 18 respectively with the last wall of gallery 16.Haulage way 13 and gallery 16 respectively with goaf 9 adjacency.In the filler that 9 tops, goaf fall many spaces are arranged, gas is assembled the top to goaf 9 along these spaces, finally comes together in gas gradually and collects in the lane 2, gets rid of through drawing-off gas device 3 again.
The present invention is after operation is mined forward, should adopt powerful intensive organ timbering 11 supporting haulage ways 13 immediately, little or when being zero at the wind speed of haulage way 13, coal mining activity face 15, gallery 16, gas can ceaselessly move to the top, space in goaf 9, both having made does not have mechanical ventilation, can not assemble gas in large quantities in haulage way 13, coal mining activity face 15, the gallery 16, therefore thoroughly solve the problem of gas explosion.When if wind speed is big, gas can 5 the exit discharge through the face of land with the wind.
Embodiment:
In existing coalmine ventilation system, use conventional method to gallery 10 and 16 drivings earlier, when tunneling to the border, should be with the tunnel of newly getting as ventilation lane, border 7, again lane 2 is collected as gas of the present invention in the ventilation lane of former use, the exit of collecting lane 2 at gas is provided with drawing-off gas device 3.Method routinely keeps safety pillar 8, carries out back production then.When back production gallery 16 on the adjoiner in wall and goaf 9 must adopt powerful intensive organ timbering 18 supportings, the post of organ timbering is apart from being 0.2 meter, every organ timbering can bear 60 tons at least, makes it can keep gallery 16 intact after back production, discarded simultaneously gallery 10.
After actual mining is finished, guarantee that with powerful intensive organ timbering 18 gallery 16 promptly becomes the return airway of next work plane.Under the prerequisite that keeps safety pillar 8, lifting main shaft 4, haulage way 13 are communicated with gallery 16, and form new coal-face by lifting main shaft 4, haulage way 13, gallery 16, ventilation lane, border 7.When forwards mining, whenever adopt forward 1 meter should be immediately on haulage way 13 wall use powerful intensive organ timbering 11 supportings, and adopt the encryption frame case of conventional usefulness simultaneously, the spacing of encrypting the frame case is 0.4 meter, is used to strengthen the supporting of haulage way 13 jointly.Do not adopt independent tunnelling like this, air intake 12 is entered by promoting main shaft 4, mix forming return 17 with gas through haulage way 13, coal mining activity face 15,7 discharges through ventilation lane, border again.
Claims (1)
1, advance wall coal and gas of a kind of simplification is collected and exhaust method, it is that the prong in (5) and ventilation lane, border (7) on the face of land is provided with blower fan (1), there is safety pillar (8) in ventilation lane, border (7) with the prong adjacency of gallery (16), safety pillar (8) and airtight (6) adjacency, promote main shaft (a 4) left side, the right side is respectively with last, following airtight (6) adjacency, on, following airtight (6) and safety pillar (8) adjacency, airtight (6), safety pillar (8) one sides respectively with goaf (9) adjacency, goaf (9) one sides are disposed with coal mining activity face pillar (14) and coal mining activity face (15), opposite side and haulage way (13) adjacency, haulage way (13) and gallery (16) respectively with goaf (9) adjacency, it is characterized in that being provided with between goaf (9) to the face of land (5) gas and collect lane (2), drawing-off gas device (3) is arranged at the exit that gas is collected lane (2), and powerful intensive organ timbering (11) and (18) are arranged at the last wall of haulage way (13) and gallery (16) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031254330A CN100344857C (en) | 2003-09-14 | 2003-09-14 | Method of simplified advance wall type coal mining, gas collection and drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031254330A CN100344857C (en) | 2003-09-14 | 2003-09-14 | Method of simplified advance wall type coal mining, gas collection and drainage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1525042A CN1525042A (en) | 2004-09-01 |
| CN100344857C true CN100344857C (en) | 2007-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031254330A Expired - Fee Related CN100344857C (en) | 2003-09-14 | 2003-09-14 | Method of simplified advance wall type coal mining, gas collection and drainage |
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| CN (1) | CN100344857C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121369B (en) * | 2010-12-15 | 2013-04-24 | 中国神华能源股份有限公司 | Method for separating gas |
| CN102146803B (en) * | 2011-02-14 | 2014-01-22 | 包月祥 | Collection and utilization system outside coal mine gas well |
| RU2510461C1 (en) * | 2012-12-06 | 2014-03-27 | Федеральное государственное бюджетное учреждение науки Институт угля Сибирского отделения Российской академии наук (ИУ СО РАН) | Complex control method of gas emission in extraction sections at development of thick and superimposed highly gas-bearing gently sloping coal beds |
| RU2522583C2 (en) * | 2013-05-13 | 2014-07-20 | Черных Николай Георгиевич | Development of gas-bearing set of coal seams |
| CN107255028A (en) * | 2017-08-01 | 2017-10-17 | 宿州市金鼎安全技术股份有限公司 | A kind of method that abandoned mine underground separation utilizes gas |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1412416A (en) * | 2002-09-30 | 2003-04-23 | 山西潞安环保能源开关股份有限公司王庄煤矿 | Working face J-type ventilating system |
-
2003
- 2003-09-14 CN CNB031254330A patent/CN100344857C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1412416A (en) * | 2002-09-30 | 2003-04-23 | 山西潞安环保能源开关股份有限公司王庄煤矿 | Working face J-type ventilating system |
Non-Patent Citations (3)
| Title |
|---|
| 《沿空留巷前进式采煤法的研究和应用》 白沙矿务局，红卫煤矿，赵和松执笔，《矿山压力与顶板管理》，第1993年第1期 1993 * |
| 《薄煤层前进式采煤法的应用》 连光顺，岳国梁，《煤炭技术》，第22卷第2期 2003 * |
| 《采空区瓦斯抽放技术》 于不凡，《矿业安全与环保》，第1988年第1期 1988 * |
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| CN1525042A (en) | 2004-09-01 |
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