CN201301726Y - Mash gas adding system and safety protecting mechanism of coal mine air last methane oxygenizing device - Google Patents
Mash gas adding system and safety protecting mechanism of coal mine air last methane oxygenizing device Download PDFInfo
- Publication number
- CN201301726Y CN201301726Y CNU200820224434XU CN200820224434U CN201301726Y CN 201301726 Y CN201301726 Y CN 201301726Y CN U200820224434X U CNU200820224434X U CN U200820224434XU CN 200820224434 U CN200820224434 U CN 200820224434U CN 201301726 Y CN201301726 Y CN 201301726Y
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- Prior art keywords
- valve
- mash gas
- coal mine
- gas extraction
- mash
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000003245 coal Substances 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000000605 extraction Methods 0.000 claims description 33
- 230000003647 oxidation Effects 0.000 claims description 22
- 238000007254 oxidation reaction Methods 0.000 claims description 22
- 238000009423 ventilation Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract 5
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 37
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- NLOAOXIUYAGBGO-UHFFFAOYSA-N C.[O] Chemical compound C.[O] NLOAOXIUYAGBGO-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A mash gas adding system and a safety protecting mechanism of coal mine air last methane oxygenizing device comprise an exhausting and mining mash gas pipeline of an oxygenizing device exhausting and mining mash gas and air last mixed gas inlet system, a manual valve which is installed on the pipeline, exhausting and mining mash gas and air last mixed rear gas inlet main pipeline, a fan, a safe valve and a connecting pipe which is connected with a mechanical cutting valve which are installed on the pipeline in turn, a wet flame arrester, a dry flame arrester, a rapid cutting valve, a mine gas adding amount control adjusting valve and the mechanical cutting valve which are connected with the safety protecting mechanism according to the exhausting and mining mine gas flow direction from the upper portion to the lower portion, a controller of an electric control system and a power supply which is electrically connected with the controller, wherein the controller is also electrically connected with a methane density sensor and a liquid level sensor in parallel, and the power supply is also electrically connected with a blow-off valve, the mine gas adding amount control adjusting valve, a safety valve, the rapid cutting valve and the fan in parallel. The safety protecting mechanism is characterized in that the operation is convenient, energy-saving, safe and protective, and is widely applied in mine gas adding systems of mine exhausting and mining oxygenizing devices.
Description
One, technical field
The utility model relates to the supply arrangement that contains methane and air gas mixture in the coal mine ventilation air methane destroy device, particularly a kind of mash gas adding system of coal mine ventilation air methane oxidation device and safety protection mechanism.
Two, background technology
At present, methane concentration is lower than 6% mash gas extraction can not be civilian, can not generate electricity, though also the mash gas extraction methane concentration in some colliery greater than 6% since wherein also contain more carbon dioxide (or) nitrogen, also can't utilize, this part gas is in emptying state substantially at present.Atmospheric environment had both been polluted in a large amount of coal mine light concentration mash gas emptyings, had wasted a large amount of clean energy resourcies again, was a kind of great loss.
Three, summary of the invention
The purpose of this utility model provides a kind of mash gas adding system and safety protection mechanism of improved coal mine ventilation air methane oxygen device; adopt control system and release mechanism; the mash gas extraction quantity and the methane concentration of adding are remained in the oxidation unit specified standard scope; system and safety of coal mines had both been guaranteed, the shortcoming or the deficiency that overcome again or avoid existing in the above-mentioned prior art.
The mash gas adding system of coal mine ventilation air methane oxidation device described in the utility model and safety protection mechanism comprise oxidation unit mash gas extraction and weary wind combi port system, safety system and electrical control system.Described oxidation unit mash gas extraction and weary wind combi port system comprise mash gas extraction pipeline and the manually-operated gate that is installed on it, mash gas extraction and weary wind mix back air inlet trunk line and on blower fan, safety valve and the tube connector that is connected with the mechanical cutting valve installed in turn; Described safety protection mechanism comprises that flowing to the wet type spark arrester, dry type spark arrester, repid cut-off valve, the gas that are connected from top to bottom by mash gas extraction adds quantity control and regulation valve and mechanical cutting valve; Described electrical control system comprises controller and the power supply that is electrically connected with it, controller also walks abreast with sensing methane concentration device and liquid level sensor and is electrically connected, and power supply also walks abreast with bleed valve, gas interpolation quantity control and regulation valve, safety valve, repid cut-off valve and blower fan and is electrically connected.
Wherein, described bleed valve is installed on wet type spark arrester bottom on one side.Described liquid level sensor is installed on wet type spark arrester bottom another side.The described sensing methane concentration device of fluid strainer is installed in the described wet type spark arrester is installed on the front portion of mash gas extraction pipeline and mash gas extraction mixes back air inlet trunk line with weary wind rear portion respectively.Described mash gas extraction mixes back air inlet trunk line with weary wind and also is connected with the mechanical cutting valve by balance pipe.
The utility model compared with prior art has the following advantages:
1, mash gas extraction with suck oxidation unit by blower fan again after coal mine methane mixes, mash gas extraction does not need to increase pressure, convenience, energy-conservation when adding.
2, adopt machinery control and the dual parallel mode of electrical control to guarantee oxidation unit under the situation that does not have coal mine methane to enter, mash gas extraction can not enter oxidation unit, in case cause inner burning of oxidation unit or blast.
3, water seal spark arrester and two kinds of back-fire relief modes of wavy metal band spark arrester are set on the mash gas extraction pipeline, stop the possible burning things which may cause a fire disaster of oxidation unit to import the mash gas extraction pipeline into, the safety of protection colliery mash gas extraction system.
Four, description of drawings
Fig. 1 is a kind of structural representation of the present utility model
Fig. 2 is for pressing electric control structure schematic diagram shown in Figure 1
Five, the specific embodiment
As Fig. 1-shown in Figure 2, a kind of mash gas adding system of coal mine ventilation air methane oxidation device and safety protection mechanism comprise oxidation unit mash gas extraction and weary wind combi port system, safety system and electrical control system.The mash gas extraction of oxidation unit comprises mash gas extraction pipeline 1 with weary wind combi port system and the manually-operated gate 3 that is installed on it, mash gas extraction and weary wind mix back air inlet trunk line 15 and on blower fan 14, safety valve 13 and the tube connector 16 that is connected with mechanical cutting valve 11 installed in turn; Described safety protection mechanism comprises that flowing to the wet type spark arrester 5, dry type spark arrester 8, repid cut-off valve 9, the gas that are connected from top to bottom by mash gas extraction adds quantity control and regulation valve 10 and mechanical cutting valve 11; The power supply 18 that described electrical control system comprises controller 17 and is electrically connected with it, controller 17 also walks abreast with sensing methane concentration device 2 and liquid level sensor 7 and is electrically connected, and power supply 18 also adds quantity control and regulation valve 10, safety valve 13, repid cut-off valve 9 and blower fan 14 parallel electrical connections with bleed valve 4, gas.
Bleed valve 4 is installed on wet type spark arrester 5 bottoms on one side.Liquid level sensor 7 is installed on wet type spark arrester 5 bottom another sides.Fluid strainer 6 is installed in the wet type spark arrester 5.Sensing methane concentration device 2 is installed on the front portion of mash gas extraction pipeline 1 and mash gas extraction mixes back air inlet trunk line 15 with weary wind rear portion respectively.Mash gas extraction mixes back air inlet trunk line 15 with weary wind and is connected with mechanical cutting valve 11 by balance pipe 12.
Claims (6)
1, a kind of mash gas adding system of coal mine ventilation air methane oxidation device and safety protection mechanism, comprise oxidation unit mash gas extraction and weary wind combi port system, safety system and electrical control system, the mash gas extraction that it is characterized in that described oxidation unit comprises mash gas extraction pipeline (1) with weary wind combi port system and the manually-operated gate (3), mash gas extraction and the weary wind that are installed on it mix back air inlet trunk line (15) and on blower fan (14), safety valve (13) and the tube connector (16) that is connected with mechanical cutting valve (11) installed in turn; Described safety protection mechanism comprises that flowing to the wet type spark arrester (5), dry type spark arrester (8), repid cut-off valve (9), the gas that are connected from top to bottom by mash gas extraction adds quantity control and regulation valve (10) and mechanical cutting valve (11); The power supply (18) that described electrical control system comprises controller (17) and is electrically connected with it, controller (17) also walks abreast with sensing methane concentration device (2) and liquid level sensor (7) and is electrically connected, and power supply (18) also walks abreast with bleed valve (4), gas interpolation quantity control and regulation valve (10), safety valve (13), repid cut-off valve (9) and blower fan (14) and is electrically connected.
2,, it is characterized in that described bleed valve (4) is installed on wet type spark arrester (5) bottom on one side according to the mash gas adding system and the safety protection mechanism of the described coal mine ventilation air methane oxidation device of claim 1.
3,, it is characterized in that described liquid level sensor (7) is installed on wet type spark arrester (5) bottom another side according to the mash gas adding system and the safety protection mechanism of claim 1 or 2 described coal mine ventilation air methane oxidation devices.
4,, it is characterized in that being equipped with in the described wet type spark arrester (5) fluid strainer (6) according to the mash gas adding system and the safety protection mechanism of claim 1 or 2 described coal mine ventilation air methane oxidation devices.
5,, it is characterized in that described sensing methane concentration device (2) is installed on the front portion of mash gas extraction pipeline (1) and mash gas extraction mixes back air inlet trunk line (15) with weary wind rear portion respectively according to the mash gas adding system and the safety protection mechanism of the described coal mine ventilation air methane oxidation device of claim 1.
6,, it is characterized in that described mash gas extraction and weary wind mix back air inlet trunk line (15) and is connected with mechanical cutting valve (11) by balance pipe (12) according to the mash gas adding system and the safety protection mechanism of the described coal mine ventilation air methane oxidation device of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820224434XU CN201301726Y (en) | 2008-11-27 | 2008-11-27 | Mash gas adding system and safety protecting mechanism of coal mine air last methane oxygenizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820224434XU CN201301726Y (en) | 2008-11-27 | 2008-11-27 | Mash gas adding system and safety protecting mechanism of coal mine air last methane oxygenizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201301726Y true CN201301726Y (en) | 2009-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820224434XU Expired - Fee Related CN201301726Y (en) | 2008-11-27 | 2008-11-27 | Mash gas adding system and safety protecting mechanism of coal mine air last methane oxygenizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201301726Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10537849B2 (en) | 2015-03-11 | 2020-01-21 | Johnson Matthey Davy Technologies Limited | Process for removing CO2 from crude natural gas |
| US10828601B2 (en) | 2013-10-21 | 2020-11-10 | Johnson Matthey Davy Technologies Limited | Process for removing methane from a gas |
-
2008
- 2008-11-27 CN CNU200820224434XU patent/CN201301726Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10828601B2 (en) | 2013-10-21 | 2020-11-10 | Johnson Matthey Davy Technologies Limited | Process for removing methane from a gas |
| US10537849B2 (en) | 2015-03-11 | 2020-01-21 | Johnson Matthey Davy Technologies Limited | Process for removing CO2 from crude natural gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20111127 |