CN105201545A - Filtering and fire inhibiting device for coal mine gas extraction pipeline - Google Patents
Filtering and fire inhibiting device for coal mine gas extraction pipeline Download PDFInfo
- Publication number
- CN105201545A CN105201545A CN201510558667.8A CN201510558667A CN105201545A CN 105201545 A CN105201545 A CN 105201545A CN 201510558667 A CN201510558667 A CN 201510558667A CN 105201545 A CN105201545 A CN 105201545A
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- China
- Prior art keywords
- tank body
- gas
- coal mine
- filters
- presses down
- 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.)
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Links
- 238000000605 extraction Methods 0.000 title claims abstract description 51
- 239000003245 coal Substances 0.000 title claims abstract description 31
- 238000001914 filtration Methods 0.000 title claims abstract description 18
- 230000002401 inhibitory effect Effects 0.000 title abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000000428 dust Substances 0.000 claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- 238000004880 explosion Methods 0.000 claims description 15
- 238000013022 venting Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 239000003818 cinder Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 9
- 238000005474 detonation Methods 0.000 claims description 8
- 230000008030 elimination Effects 0.000 claims description 7
- 238000003379 elimination reaction Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 210000004722 stifle Anatomy 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000002269 spontaneous effect Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a filtering and fire inhibiting device for a coal mine gas extraction pipeline. The filtering and fire inhibiting device comprises a filtering and fire inhibiting tank as well as a gas delivery assembly, a filtering medium assembly and a water quantity control and residue removal assembly which are mounted on the filtering and fire inhibiting tank. The filtering and fire inhibiting device has the characteristics of high filtering efficiency, simple structure, convenience in operation, work stability, economy, practicability and the like and can be applied to gas outlets of collecting pipes, gas extraction branch pipes, main pipes and the like of gas extraction drilling fields.
Description
Technical field
The present invention relates to a kind of coal mine gas extraction pipeline to filter but fiery device, belong to coal mine gas drainage technical field.
Background technology
Coal mine gas pumping method can be divided into by extraction mechanism: coal-bed gas is taken out in advance, pressure released seam gas pumping and goaf gas extraction.In extraction process, because the temperature difference between each point is different, coal and rock itself is moisture or crack water guide, causes in gas drainage system and accumulates condensed water and seepage water, affect extraction system and normally run, and increases gas pumping resistance, reduces gas pumping effect; Because of coal and rock disturbance constructions such as boring, diggings, by boring negative pressure extraction or broken cash, dust Gravitative Loads, boring periphery morcels cash, dust enters in methane gas extraction pipeline, pipeline gate valve, Monitor And Control Subsystem, turn round and extraction flow velocity diminish place pile up, cause gas drainage system resistance to increase, cause gas pumping effect to reduce; In drilling construction or sealing of hole process, to rub due to drilling tool and coal seam or coal seam sealing material reacts overheated, coal seam high-temperature oxydation or burning may be caused; And when the easy spontaneous combustion of extraction or spontaneous progress gas, often because of boring gas leakage, the extraction time is longer, there is extraction coal seam high-temperature oxydation or spontaneous combustion hidden danger, easily cause goaf spontaneous combustion of coal seam or gas explosion accident, above-mentioned extraction place, may by high temperature source of the gas, Mars suction gas drainage system, cause gas in pipeline to burn, explode on a large scale, cause gas drainage system to paralyse, even cause gas exceeding limit within the scope of full ore deposit.
Existing methane gas extraction pipeline filters and presses down fiery device, is mostly filtrations and presses down fiery function separately, installing screen pack slagging-off at line ports, and at the low-lying place of pipeline or separate arm every a segment distance and install jettison gear, leading, but main road installs fiery device.The subject matter that this mode exists is: resistance is large, is directly installed on extraction pipeline presses down fiery device and screen pack, and except itself increases extraction SR, the broken cash that screen pack is tackled, dust can significantly increase extraction SR; Efficiency is low, and mostly tailrace is from extraction pipeline point out branch, rely on water deadweight to flow in tailrace, but most air-water mixture is pumped, and flows or accumulate somewhere in pipeline with air-flow because of inertia; Have high input, methane gas extraction pipeline presses down fiery device unit price up to 200,000 yuans, and mine extraction system needs infield more, has high input, and because of pipeline filter residue, discharges water and presses down fiery device independently, therefore safeguarding that human input is also many.
Summary of the invention
The object of the invention is to solve Problems existing in current techniques, provide that a kind of filter efficiency is high, structure simple, working stability, easy and simple to handle, economical and practical coal mine gas extraction pipeline filter and press down fiery device.
For achieving the above object, the technology used in the present invention means are: a kind of coal mine gas extraction pipeline filters and presses down fiery device, comprise filtering to press down cupping jar body and be arranged on filtering the gas carrier member pressed down on cupping jar body, filter medium assembly, water rate control slagging-off assembly.
Further, described filtration presses down cupping jar body by tank body, the upper cover being arranged on tank body top and the support composition being arranged on tank base.
Further, described upper cover fixes the upper cover upper flange of venting of dust explosion lid by venting of dust explosion lid with by bolt, nut shim, upper cover lower flange forms.
Further, described gas carrier member is made up of air inlet pipe and escape pipe, and air inlet pipe one end is positioned at outside tank body, and its port arranges flange and is connected with source of the gas transfer pipeline, the air inlet pipe other end is positioned at tank body, and air inlet pipe is arranged in the bending filtered water certain depth that submerges of pipeline of tank body downwards; The pipeline that escape pipe is positioned at tank body be bent upwards and port upward, the other end is positioned at outside tank body, accesses gas drainage system by pipeline flange; Escape pipe is higher than air inlet pipe.
Further, described filter medium assembly by filtered water, intercept copper mesh and form, intercept copper mesh and be arranged on the tank body that is positioned at above filtered water horizontal plane.
Further, described air inlet pipe is arranged in the bending filtered water certain depth that submerges of pipeline of tank body is downwards 200 ~ 500mm.
Further, described water rate control slagging-off assembly by be arranged on tank body side water inlet gate valve, add water and all press mouth, liquid level meter and be arranged on the discharging water except cinder notch and stifle form of tank base, add water and all press mouth at escape pipe and intercept between copper mesh; Liquid level meter is for observing filtered water liquid level.
Further, described coal mine gas extraction pipeline filters and presses down fiery device by air-intake negative-pressure pipe connection collecting pipe, and by giving vent to anger, negative tube connects gas drainage system.
Further, described coal mine gas extraction pipeline filters the course of work pressing down fiery device: by the air-intake negative-pressure pipe be connected with high-order drill site collecting pipe, source of the gas enters collecting pipe by boring branch and gathers, entered in the filtered water in tank body by air-intake negative-pressure pipe, the dust mixed in source of the gas and broken cash, due to gravity and humidification, fall within bottom of device, by discharging water except cinder notch is removed, clean source of the gas is transported in gas drainage system by escape pipe and negative tube of giving vent to anger; High temperature source of the gas, Mars or flare enter collecting pipe by boring branch, entered in the filtered water in tank body by air-intake negative-pressure pipe, thus cooled cooling fire extinguishing, remaining flare by bubble emerge the water surface time, copper mesh can be blocked and smash extinguishing by cooling, thus elimination disaster hidden-trouble, when fire detonation wave is excessive, venting of dust explosion cover moves pressure release, prevents detonation wave from washing out extraction system.
Beneficial effect of the present invention is: by extraction gas by air inlet pipe introducing device, gas filters through drainage, obstruct copper mesh, gas drainage system is delivered to again by escape pipe, the broken cash be mingled with in extraction gas, dust are due to gravity, humidification, fall within bottom of device, by discharging water except cinder notch, regularly remove; During the breaking out of fire of source of the gas side, air inlet is the condition of high temperature, carry secretly flare by filtered water cooling, suffocate, cooling, elimination burning things which may cause a fire disaster, remaining flare by bubble emerge the water surface time, copper mesh can be blocked and smash extinguishing by cooling, thus elimination disaster hidden-trouble, as excessive in fire detonation wave, venting of dust explosion lid can passive pressure release, prevent that blast pressure is excessive washes out extraction system, this device has that filter efficiency is high, structure is simple, easy and simple to handle, working stability, the feature such as economical and practical, can be applicable to the places such as gas pumping drill site collecting pipe outlet side, gas pumping arm, main.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further elaborated.
Fig. 1 is structural representation of the present invention;
Fig. 2 is in-site installation structural representation of the present invention.
In figure: 1, flange, 2, air inlet pipe, 3, tank body, 4, venting of dust explosion lid, 5, upper cover upper flange, 6, upper cover lower flange, 7, escape pipe, 8, water inlet gate valve, 9, add water and all press mouth, 10, liquid level meter, 11, discharge water except cinder notch, 12, support, 13, filtered water, 14, intercept copper mesh, 15, hole branch, and 16, collecting pipe, 17, air-intake negative-pressure pipe, 18, coal mine gas extraction pipeline filters and presses down fiery device, 19, negative tube of giving vent to anger, and 20, gas drainage system.
Detailed description of the invention
A kind of coal mine gas extraction pipeline as shown in Figure 1, 2 filters and presses down fiery device, comprises filtering to press down cupping jar body and be arranged on filtering the gas carrier member pressed down on cupping jar body, filter medium assembly, water rate control slagging-off assembly.The isolating construction mode of original use distinct device is integrated by this structure, solves existing equipment Problems existing.
Described filtration presses down cupping jar body by tank body 3, and the upper cover being arranged on tank body 3 top and the support 12 being arranged on tank base form.
Described upper cover fixes the upper cover upper flange 5 of venting of dust explosion lid by venting of dust explosion lid 4 with by bolt, nut shim, upper cover lower flange 6 forms.Upper bonnet bolt, upper box nut, upper lid gasket, upper cover upper flange 5, venting of dust explosion lid 4, upper cover lower flange 6 and support 12 form.Venting of dust explosion lid 4 is positioned at tank body 3 top, is fixed by the assembly such as upper cover upper flange 5, upper cover lower flange 6 and upper bonnet bolt, upper box nut, upper lid gasket; Support 12 is positioned at tank base, for supporting tank body, to discharging water except slag operation stops space.
Described gas carrier member is made up of air inlet pipe 2 and escape pipe 7, air inlet pipe 2 one end is positioned at outside tank body 3, its port arranges flange 1 and is connected with source of the gas transfer pipeline, and air inlet pipe 2 other end is positioned at tank body 3, and air inlet pipe is arranged in bending filtered water 13 certain depth that submerges of pipeline of tank body downwards; The pipeline that escape pipe 7 is positioned at tank body 3 be bent upwards and port upward, the other end is positioned at outside tank body, accesses gas drainage system by pipeline flange; Escape pipe 7 is higher than air inlet pipe 2.
Described filter medium assembly by filtered water 13, intercept copper mesh 14 and form, intercept copper mesh 14 and be arranged on the tank body 3 that is positioned at above filtered water 13 horizontal plane.
Bending filtered water 13 certain depth that submerges downwards of pipeline that described air inlet pipe 2 is arranged in tank body 3 is 200 ~ 500mm.
Described water rate control slagging-off assembly by be arranged on tank body 3 side water inlet gate valve 8, add water and all press mouth 9, liquid level meter 10 and be arranged on discharging water except cinder notch 11 and stifle form bottom tank body 3, add water and all press mouth 9 at escape pipe 7 and intercept between copper mesh 14; Liquid level meter 10 is for observing filtered water liquid level.
Described coal mine gas extraction pipeline filters but fiery device 18 connects collecting pipe 16 by air-intake negative-pressure pipe 17, and by giving vent to anger, negative tube 19 connects gas drainage system 20.
Described coal mine gas extraction pipeline filters the course of work pressing down fiery device 18: by the air-intake negative-pressure pipe 17 be connected with high-order drill site collecting pipe 16, source of the gas enters collecting pipe 16 by boring branch 15 and gathers, entered in the filtered water 13 in tank body 3 by air-intake negative-pressure pipe 17, the dust mixed in source of the gas and broken cash, due to gravity and humidification, fall within bottom of device, by discharging water except cinder notch 11 is removed, clean source of the gas is transported in gas drainage system 20 by escape pipe 7 and negative tube 19 of giving vent to anger; High temperature source of the gas, Mars or flare enter collecting pipe 16 by boring branch 15, entered in the filtered water 13 in tank body 3 by air-intake negative-pressure pipe 17, thus cooled cooling fire extinguishing, remaining flare by bubble emerge the water surface time, copper mesh 14 can be blocked and smash extinguishing by cooling, thus elimination disaster hidden-trouble, when fire detonation wave is excessive, the passive pressure release of venting of dust explosion lid 7, prevents detonation wave from washing out extraction system.
The present invention is by extraction gas by air inlet pipe introducing device, and gas filters through drainage, obstruct copper mesh, then is delivered to gas drainage system by escape pipe, the broken cash be mingled with in extraction gas, dust are due to gravity, humidification, falling within bottom of device, by discharging water except cinder notch, regularly removing; During the breaking out of fire of source of the gas side, air inlet is the condition of high temperature, carry secretly flare by filtered water cooling, suffocate, cooling, elimination burning things which may cause a fire disaster, remaining flare by bubble emerge the water surface time, copper mesh can be blocked and smash extinguishing by cooling, thus elimination disaster hidden-trouble, as excessive in fire detonation wave, venting of dust explosion lid can passive pressure release, prevent that blast pressure is excessive washes out extraction system, this device has that filter efficiency is high, structure is simple, easy and simple to handle, working stability, the feature such as economical and practical, can be applicable to the places such as gas pumping drill site collecting pipe outlet side, gas pumping arm, main.
Application embodiment is just for illustration of technical characteristic disclosed in the present application, and those skilled in the art, by simply replacing the change carried out, still belong to the scope that the application protects.
Claims (9)
1. coal mine gas extraction pipeline filters and presses down a fiery device, comprises filtering to press down cupping jar body and be arranged on filtering the gas carrier member pressed down on cupping jar body, filter medium assembly, water rate control slagging-off assembly.
2. coal mine gas extraction pipeline according to claim 1 filters and presses down fiery device, it is characterized in that: described filtration presses down cupping jar body by tank body (3), the upper cover being arranged on tank body (3) top and support (12) composition being arranged on tank base.
3. coal mine gas extraction pipeline according to claim 2 filters and presses down fiery device, it is characterized in that: described upper cover fixes the upper cover upper flange (5) of venting of dust explosion lid by venting of dust explosion lid (4) with by bolt, nut shim, upper cover lower flange (6) forms.
4. coal mine gas extraction pipeline according to claim 2 filters and presses down fiery device, it is characterized in that: described filter medium assembly by filtered water (13), intercept copper mesh (14) and form, obstruct copper mesh (14) is arranged on the tank body (3) that is positioned at above filtered water (13) horizontal plane.
5. coal mine gas extraction pipeline according to claim 4 filters and presses down fiery device, it is characterized in that: described gas carrier member is made up of air inlet pipe (2) and escape pipe (7), air inlet pipe (2) one end is positioned at tank body (3) outward, its port arranges flange (1) and is connected with source of the gas transfer pipeline, air inlet pipe (2) other end is positioned at tank body (3), and air inlet pipe is arranged in bending filtered water (13) certain depth that submerges of pipeline of tank body downwards; The pipeline that escape pipe (7) is positioned at tank body (3) be bent upwards and port upward, the other end is positioned at outside tank body, accesses gas drainage system by pipeline flange; Escape pipe (7) is higher than air inlet pipe (2).
6. coal mine gas extraction pipeline according to claim 5 filters and presses down fiery device, it is characterized in that: bending filtered water (13) certain depth that submerges downwards of pipeline that described air inlet pipe (2) is arranged in tank body (3) is 200 ~ 500mm.
7. coal mine gas extraction pipeline according to claim 2 filters and presses down fiery device, it is characterized in that: described water rate control slagging-off assembly by be arranged on tank body (3) side water inlet gate valve (8), add water and all press mouth (9), liquid level meter (10) and be arranged on the discharging water except cinder notch (11) and stifle form of tank body (3) bottom, add water and all press mouth (9) to be positioned between escape pipe (7) and obstruct copper mesh (14); Liquid level meter (10) is for observing filtered water liquid level.
8. coal mine gas extraction pipeline as claimed in claim 1 filters and presses down fiery device, it is characterized in that: described coal mine gas extraction pipeline filters and presses down fiery device (18) by air-intake negative-pressure pipe (17) connection collecting pipe (16), connects gas drainage system (20) by negative tube of giving vent to anger (19).
9. coal mine gas extraction pipeline according to claim 8 filters and presses down fiery device, its course of work, be characterised in that: by the air-intake negative-pressure pipe (17) be connected with high-order drill site collecting pipe (16), source of the gas enters collecting pipe (16) by boring branch (15) and gathers, entered in the filtered water (13) in tank body (3) by air-intake negative-pressure pipe (17), the dust mixed in source of the gas and broken cash, due to gravity and humidification, fall within bottom of device, by discharging water except cinder notch (11) is removed, clean source of the gas is transported in gas drainage system (20) by escape pipe (7) and negative tube of giving vent to anger (19), high temperature source of the gas, Mars or flare enter collecting pipe (16) by boring branch (15), entered in the filtered water (13) in tank body (3) by air-intake negative-pressure pipe (17), thus cooled cooling fire extinguishing, remaining flare by bubble emerge the water surface time, copper mesh (14) can be blocked and smash extinguishing by cooling, thus elimination disaster hidden-trouble, venting of dust explosion lid (7) the passive pressure release when fire detonation wave is excessive, prevents detonation wave from washing out extraction system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558667.8A CN105201545A (en) | 2015-09-06 | 2015-09-06 | Filtering and fire inhibiting device for coal mine gas extraction pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558667.8A CN105201545A (en) | 2015-09-06 | 2015-09-06 | Filtering and fire inhibiting device for coal mine gas extraction pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105201545A true CN105201545A (en) | 2015-12-30 |
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ID=54949458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510558667.8A Pending CN105201545A (en) | 2015-09-06 | 2015-09-06 | Filtering and fire inhibiting device for coal mine gas extraction pipeline |
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| Country | Link |
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| CN (1) | CN105201545A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051467A (en) * | 2016-08-09 | 2016-10-26 | 河南柴油机重工有限责任公司 | Gas-water separation fire retardant explosion venting device |
| CN112648003A (en) * | 2020-12-17 | 2021-04-13 | 华能煤炭技术研究有限公司 | Water drainage device for gas extraction pipeline |
| CN113069699A (en) * | 2021-04-19 | 2021-07-06 | 贵州大学 | Water-sealed coal mine gas control explosion-proof device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975867A (en) * | 2015-06-05 | 2015-10-14 | 安徽恒源煤电股份有限公司 | Filtering fire suppression system for coal mine gas extraction pipeline |
| CN204703946U (en) * | 2015-08-20 | 2015-10-14 | 安徽恒源煤电股份有限公司 | But a kind of coal mine gas extraction pipeline that is used for filters ignition system |
-
2015
- 2015-09-06 CN CN201510558667.8A patent/CN105201545A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975867A (en) * | 2015-06-05 | 2015-10-14 | 安徽恒源煤电股份有限公司 | Filtering fire suppression system for coal mine gas extraction pipeline |
| CN204703946U (en) * | 2015-08-20 | 2015-10-14 | 安徽恒源煤电股份有限公司 | But a kind of coal mine gas extraction pipeline that is used for filters ignition system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051467A (en) * | 2016-08-09 | 2016-10-26 | 河南柴油机重工有限责任公司 | Gas-water separation fire retardant explosion venting device |
| CN106051467B (en) * | 2016-08-09 | 2018-11-13 | 河南柴油机重工有限责任公司 | A kind of gas-water separation back-fire relief explosion venting device |
| CN112648003A (en) * | 2020-12-17 | 2021-04-13 | 华能煤炭技术研究有限公司 | Water drainage device for gas extraction pipeline |
| CN113069699A (en) * | 2021-04-19 | 2021-07-06 | 贵州大学 | Water-sealed coal mine gas control explosion-proof device |
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Application publication date: 20151230 |