CN1525042A - 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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- CN1525042A CN1525042A CNA031254330A CN03125433A CN1525042A CN 1525042 A CN1525042 A CN 1525042A CN A031254330 A CNA031254330 A CN A031254330A CN 03125433 A CN03125433 A CN 03125433A CN 1525042 A CN1525042 A CN 1525042A
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Abstract
The invention provides a method of simplified forward wall coal extraction and gas collection and discharge. Based on routine wall coal extracting method, it sets gas collecting tunnel between the goaf and the earth's surface and gas discharging device at the outlet of the gas collecting tunnel so that the gas in the goaf gradually assembles in the gas collecting tunnel and is discharged by the gas discharging device. The transport level and level are adjacent to the goaf, and the heavy dense columns are set on the top walls of the transport level and level, respectively. When extracting 1 m coal each time it immediately uses heavy dense columns on the top wall of the transport level to support. It is simple and easy to apply and strongly operable, its synthetic coat is low, able to effectively collect and discharge gas, thoroughly preventing and resolving gas explosion accident. Its use effect is good and it is easy to spread. If added with corollary equipment, it can also make full use of the gas resource, changing 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, security personnel's coal utmost point 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, it is a kind of that the prong in (5) and ventilation lane, border (7) is provided with blower fan (1) on the face of land, 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), advance wall coal and gas of the simplification of opposite side and haulage way (13) adjacency is collected and exhaust method, 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), powerful intensive organ timbering (11) and (18) is arranged at the last wall of haulage way (13) and gallery (16) respectively, haulage way (13) and gallery (16) respectively with goaf (9) adjacency.
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 true CN1525042A (en) | 2004-09-01 |
| CN100344857C CN100344857C (en) | 2007-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121369A (en) * | 2010-12-15 | 2011-07-13 | 中国神华能源股份有限公司 | Method for separating gas |
| CN102146803A (en) * | 2011-02-14 | 2011-08-10 | 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198046C (en) * | 2002-09-30 | 2005-04-20 | 山西潞安环保能源开发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
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121369A (en) * | 2010-12-15 | 2011-07-13 | 中国神华能源股份有限公司 | Method for separating gas |
| CN102121369B (en) * | 2010-12-15 | 2013-04-24 | 中国神华能源股份有限公司 | Method for separating gas |
| CN102146803A (en) * | 2011-02-14 | 2011-08-10 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100344857C (en) | 2007-10-24 |
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