CN101476475B - Ventilation method for chief wind road on fire - Google Patents
Ventilation method for chief wind road on fire Download PDFInfo
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- CN101476475B CN101476475B CN 200810180344 CN200810180344A CN101476475B CN 101476475 B CN101476475 B CN 101476475B CN 200810180344 CN200810180344 CN 200810180344 CN 200810180344 A CN200810180344 A CN 200810180344A CN 101476475 B CN101476475 B CN 101476475B
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- fire
- total air
- pipeline
- air way
- airtight
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Abstract
The invention relates to a ventilation method after the firing of a main wind road. After a main wind inlet road is on fire, an accident is easy to expand, and fire gas flows to areas in which people work to cause accidents. After a main wind return road is on fire, gas ultralimit is easy to be caused, and even gas explosion can be caused. Aiming at the conditions, the ventilation method is provided and is characterized in that a firing area is provided with a pipeline of which the cross section is smaller than a firing cross section, and the pipeline passes through the firing area; both ends of the pipeline are sealed so as to block off the firing area of the main wind road within a laneway between both ends of the pipeline; and in the blocking process, the operation is carried out under the protective actions of temperature reduction, oxygen isolation, explosion suppression, extinguishment and smoke elimination by CO2 gas.
Description
Technical field: the method for ventilation after a kind of total air way catches fire belongs to preventing and extinguishing fire of coal mine, coalmine ventilation safety technics field, is specially adapted to the method for ventilation after total air intake lane, colliery or main return airway catch fire.
Background technology: the method for ventilation after a kind of total air way catches fire; Generally not malleable wind direction and distinguished and admirable flow, particularly highly gassy mine, distinguished and admirable air quantity change very easily causes gas explosion accident; In order to address the above problem, we have invented the method for ventilation after a kind of main return airway catches fire.
Summary of the invention: be prone to cause fire incident to enlarge after total air intake lane, colliery catches fire, the pernicious gas that fire produces is prone to flow to the zone that has the people to work; Cause the accident; And after the total return air in colliery catches fire, be prone to cause gas exceeding limit, even be prone to cause gas explosion accident; We have invented the method for ventilation after a kind of total air way catches fire to above-mentioned serious problems, are intended to eliminate the expansion and the influence of above-mentioned the condition of a disaster.
Method of ventilation after a kind of total air way catches fire is characterized in that: a little pipeline of the total air way section of ratio is passed through the fire area, and in total air way at pipeline two ends, construct airtightly, constructing will be at CO when airtight
2Carry out operation under the protection of gas as cooling, oxygen barrier, datonation-inhibition, fire extinguishing, smoke elimination effect; The entire job process will guarantee that distinguished and admirable can not the stopping of total air way flow; Airtight tunnel, the back air quantity of building up replaces total air way to continue to flow through pipeline; Slip casting in fire sealing simultaneously, water filling, notes noble gas, notes three-phase froth, gel-filled; In whole closed area thoroughly after the fire extinguishing, reach " safety regulations in coal mine " set quota after, play the airtight fire district that makes of envelope and recover the original ventilation system of total air way.
Method of ventilation after a kind of total air way catches fire compared with prior art has the following advantages:
1, can avoid the whole mine shutoff to cause comprehensive stopping production.
2, fire extinguishing procedure can not enlarge the condition of a disaster, can not cause gas explosion.
3, easy Rapid Realization is put out a fire and is recovered original ventilation system.
Description of drawings:
Accompanying drawing is the method for ventilation sketch map after a kind of total air way catches fire.
1, Huo Qu; 2, airtight, 3, pipeline; 4, total air way.
The specific embodiment: existing is the example explanation with the accompanying drawing: by the coalmine ventilation personnel according to fire district (1) length; Manufacture the pipeline (3) of the length that adapts, pipeline (3) length will exceed the length of Huo Qu (1), and pipeline (3) is passed fire district (1); And set up airtight (2) at pipeline (3) two ends; Jiang Huo district (1) is enclosed between pipeline (3) and the twice airtight (2), and is injecting effective extinguish material in the fire sealing (1), and the fire in the Jiang Huo district (1) eliminates fast; In whole process, under the protection of using CO2 gas as cooling, oxygen barrier, datonation-inhibition, fire extinguishing, smoke elimination effect, carry out above-mentioned operation; Slip casting, water filling, notes noble gas in airtight (2) district simultaneously, annotate three-phase froth, gel-filled, after in whole closed area, thoroughly putting out a fire, reach " safety regulations in coal mine " set quota after; Play envelope airtight (2) and make fire district (1) recover the original ventilation system of total air way (4), thereby realized the method for ventilation after a kind of total air way (4) catches fire.
Claims (2)
1. the method for ventilation after a total air way (4) catches fire is characterized in that: the pipeline (3) that a total air way of ratio (4) section is little passes through the fire area, and in total air way (4) at pipeline (3) two ends, constructs airtight (2), will be at CO when constructing airtight (2)
2Carry out operation under the protection of gas as cooling, oxygen barrier, datonation-inhibition, fire extinguishing, smoke elimination effect, the entire job process will make distinguished and admirable can not the stopping of total air way (4) flow, and airtight (2) are built up tunnel, back air quantity to replace total air way (4) to continue through pipeline (3) mobile.
2. the method for ventilation after a kind of total air way according to claim 1 (4) catches fire; It is characterized in that slip casting in fire sealing (1), water filling, notes noble gas, annotate three-phase froth, gel-filled in whole closed area thoroughly after the fire extinguishing; After reaching " safety regulations in coal mine " set quota, play envelope airtight (2) and make fire district (1) recover the original ventilation system of total air way (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810180344 CN101476475B (en) | 2008-11-24 | 2008-11-24 | Ventilation method for chief wind road on fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810180344 CN101476475B (en) | 2008-11-24 | 2008-11-24 | Ventilation method for chief wind road on fire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101476475A CN101476475A (en) | 2009-07-08 |
| CN101476475B true CN101476475B (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810180344 Active CN101476475B (en) | 2008-11-24 | 2008-11-24 | Ventilation method for chief wind road on fire |
Country Status (1)
| Country | Link |
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| CN (1) | CN101476475B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071958B (en) * | 2011-01-21 | 2012-07-25 | 中国矿业大学 | Inverse Y-shaped ventilation method for coal mining working face |
| CN102777201B (en) * | 2012-07-26 | 2014-06-18 | 山东科技大学 | Ventilation method for exploiting short distance coal bed in fire zone based on positive pressure ventilation system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1947817A (en) * | 2006-11-22 | 2007-04-18 | 杜志刚 | Method for explosion suppression and fire-extinguishing during catching fire in working face of high gas coal mine |
| CN201025058Y (en) * | 2007-05-15 | 2008-02-20 | 山西焦煤集团有限责任公司 | Secure ventilation pipe for under-well fire area sealing wall |
| CN101265810A (en) * | 2008-04-28 | 2008-09-17 | 中国矿业大学 | Inhibiting gel for harnessing coal seam fire hazard |
-
2008
- 2008-11-24 CN CN 200810180344 patent/CN101476475B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1947817A (en) * | 2006-11-22 | 2007-04-18 | 杜志刚 | Method for explosion suppression and fire-extinguishing during catching fire in working face of high gas coal mine |
| CN201025058Y (en) * | 2007-05-15 | 2008-02-20 | 山西焦煤集团有限责任公司 | Secure ventilation pipe for under-well fire area sealing wall |
| CN101265810A (en) * | 2008-04-28 | 2008-09-17 | 中国矿业大学 | Inhibiting gel for harnessing coal seam fire hazard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101476475A (en) | 2009-07-08 |
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