CN103850698A - Jet-flow ejector capable of automatically diluting upper corner gas - Google Patents
Jet-flow ejector capable of automatically diluting upper corner gas Download PDFInfo
- Publication number
- CN103850698A CN103850698A CN201410123068.9A CN201410123068A CN103850698A CN 103850698 A CN103850698 A CN 103850698A CN 201410123068 A CN201410123068 A CN 201410123068A CN 103850698 A CN103850698 A CN 103850698A
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- CN
- China
- Prior art keywords
- jet
- gas
- flow ejector
- upper corner
- corner gas
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- 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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- 238000007865 diluting Methods 0.000 title abstract 3
- 238000009423 ventilation Methods 0.000 claims abstract description 18
- 238000010790 dilution Methods 0.000 claims description 9
- 239000012895 dilution Substances 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 1
- 229940090046 jet injector Drugs 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention provides a novel jet-flow ejector capable of automatically diluting upper corner gas and belongs to the field of coal mine safety. The advancing mode of an underground coal mine working face generally is a U-shaped draw-back mode, a ventilation mode adopts an ascensional ventilation mode, and the ascensional ventilation mode has a shortcoming that the upper corner gas is easy to accumulate. The solution scheme is to employ a jet-flow ejector which is low in cost, good in effect and capable of diluting the gas. The jet-flow ejector is connected with an underground pressure ventilation pipe through a sensor switch; when a sensor detects that the upper corner gas is over limit, the sensor switch is turned on and air is supplied to the jet-flow ejector through the pressure ventilation pipe; when the air is supplied, the internal pressure of the jet-flow ejector is reduced, and therefore, the gas can be absorbed into the jet-flow ejector, then discharged into a roadway by the jet-flow ejector, and finally discharged to the outside along with an airflow in the roadway. When the concentration of the gas is reduced to a certain value, the sensor switch is turned off, and the pressure ventilation pipe stops supplying air to the jet-flow ejector. The jet-flow ejector is simple, novel and unique in structure, convenient to use and operate, is a great innovation for preventing the gas over limit, and is remarkable in economic effects.
Description
Technical field
A kind of novel jet flow injector that the present invention relates to the dilution of face upper corner angle gas is a kind of jet ejector of automatic dilution upper corner gas.
Background technology
At present, under coal mine, advance of the face mode adopts U-shaped retrusive conventionally, because gas density is less than air, can hoist mobile in down-hole, adopts ascensional ventilation to be conducive to gas and discharges.Be exactly that upper corner gas easily gathers and ascensional ventilation has a drawback.If process not in time, have gas explosion danger in the time reaching finite concentration, serious threat mine safety production; If adopt pressure ventilation pipe air feed directly to wash away upper corner gas, easily there is local distinguished and admirable disorder.Be badly in need of a kind of cost low, effective, can be automatically by the jet ejector of face upper corner angle gas dilution.
Summary of the invention
Object of the present invention is just to provide a kind of cost low, effective, can be by the jet ejector of face upper corner angle gas dilution.
The present invention includes sensor, sensor is connected by electric wire with sensing switch, and blast pipe extend in induction tunnel, and blast pipe is connected to form by sensing switch and down-hole pressure ventilation pipe.This jet ejector is connected with down-hole pressure ventilation pipe by sensing switch, in the time that sensor detects upper corner gas exceeding limit, sensing switch is opened, by pressure ventilation pipe to jet ejector air feed, when air feed, in jet ejector, pressure reduces, and therefore gas can be inhaled in fluidic sensor, enter in tunnel with jet ejector, with the distinguished and admirable discharge in tunnel.When gas density drops to after certain value, sensing switch is closed, and pressure ventilation pipe stops to jet ejector air feed.The jet ejector of automatic dilution upper corner gas, is characterized in that and stopping by the operation of sensing switch control jet device.
The present invention is applied to stope upper corner.
The present invention is that blast pipe extend in induction tunnel and by sensing switch control air intake owing to adopting said mechanism, can dilute upper corner gas by jet ejector on the one hand, has also reached on the other hand the effect of automation.
Accompanying drawing explanation:
Fig. 1 is the structure chart of jet ejector
Fig. 2 is the sectional drawing of jet ejector
Fig. 3 is the installation site figure in the time of practical application
Distinguished and admirable flow graph when Fig. 4 is jet ejector work
The specific embodiment:
The present invention does with detailed description below in conjunction with drawings and Examples.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the present invention includes sensor (1), sensor (1) is connected by holding wire (3) with sensing switch (2), blast pipe (4) extend in induction tunnel, and blast pipe (4) is connected with down-hole pressure ventilation pipe (6) by sensing switch (2).
At stope (7) upper corner, jet ejector is received on pressure ventilation pipe, sensor and jet ejector are stretched in goaf (8), in the time that sensor (1) detects upper corner gas exceeding limit, sensing switch (2) is opened, by pressure ventilation pipe to jet ejector air feed, when air feed, in jet ejector, pressure reduces, therefore gas can be inhaled in fluidic sensor, enter in tunnel with jet ejector, with the distinguished and admirable discharge in tunnel, the arrow of Fig. 4 is wind direction.When gas density drops to after certain value, sensing switch is closed, and pressure ventilation pipe stops to jet ejector air feed.In the time again there is upper corner gas exceeding limit, sensing switch reopens, and work so goes round and begins again.The present invention is simple in structure, novel, unique, uses operating aspect, is an innovation greatly that prevents upper corner gas exceeding limit, applies and has larger Social benefit and economic benefit.
Claims (3)
1. the jet ejector of a new type auto dilution upper corner gas, it is characterized in that it is by sensor (1), sensor is connected by holding wire (3) with sensing switch (2), blast pipe (4) extend in induction tunnel (5), and blast pipe (4) is connected to form by sensing switch (2) and down-hole pressure ventilation pipe (6).
2. the jet ejector of a kind of automatic dilution upper corner gas according to claim 1, is characterized in that and stopping by the operation of sensing switch control jet injector.
3. according to the jet ejector of a kind of automatic dilution upper corner gas described in claim 1 and 2, it is characterized in that flowing and reducing intraductal pressure by fluid, upper corner gas is sucked in injector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123068.9A CN103850698B (en) | 2014-03-31 | 2014-03-31 | Jet-flow ejector capable of automatically diluting upper corner gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123068.9A CN103850698B (en) | 2014-03-31 | 2014-03-31 | Jet-flow ejector capable of automatically diluting upper corner gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103850698A true CN103850698A (en) | 2014-06-11 |
| CN103850698B CN103850698B (en) | 2017-01-25 |
Family
ID=50858791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410123068.9A Expired - Fee Related CN103850698B (en) | 2014-03-31 | 2014-03-31 | Jet-flow ejector capable of automatically diluting upper corner gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103850698B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206578A (en) * | 2019-06-26 | 2019-09-06 | 耿全利 | A kind of buried pumping method of face upper corner angle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4157204A (en) * | 1978-07-27 | 1979-06-05 | The United States Of America As Represented By The Secretary Of The Interior | Face ventilation system for coal mines |
| CN2156942Y (en) * | 1993-05-07 | 1994-02-23 | 淮南矿业学院 | Cyclone draught dust collector |
| CN201239590Y (en) * | 2008-08-01 | 2009-05-20 | 河北冀凯实业集团有限公司 | Wet-type induced air precipitator |
| CN201596475U (en) * | 2009-12-31 | 2010-10-06 | 煤炭科学研究总院重庆研究院 | Coal mine gas injecting distribution system |
| CN101864985A (en) * | 2010-06-09 | 2010-10-20 | 沈阳邦科实业有限公司 | Gas diluter |
| CN201620911U (en) * | 2010-01-16 | 2010-11-03 | 李琳 | Air and water ejector for coal mine downhole gas |
| CN203822358U (en) * | 2014-03-31 | 2014-09-10 | 河南理工大学 | Jet ejector capable of automatically dilutingupper-corner gas |
-
2014
- 2014-03-31 CN CN201410123068.9A patent/CN103850698B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4157204A (en) * | 1978-07-27 | 1979-06-05 | The United States Of America As Represented By The Secretary Of The Interior | Face ventilation system for coal mines |
| CN2156942Y (en) * | 1993-05-07 | 1994-02-23 | 淮南矿业学院 | Cyclone draught dust collector |
| CN201239590Y (en) * | 2008-08-01 | 2009-05-20 | 河北冀凯实业集团有限公司 | Wet-type induced air precipitator |
| CN201596475U (en) * | 2009-12-31 | 2010-10-06 | 煤炭科学研究总院重庆研究院 | Coal mine gas injecting distribution system |
| CN201620911U (en) * | 2010-01-16 | 2010-11-03 | 李琳 | Air and water ejector for coal mine downhole gas |
| CN101864985A (en) * | 2010-06-09 | 2010-10-20 | 沈阳邦科实业有限公司 | Gas diluter |
| CN203822358U (en) * | 2014-03-31 | 2014-09-10 | 河南理工大学 | Jet ejector capable of automatically dilutingupper-corner gas |
Non-Patent Citations (1)
| Title |
|---|
| 杨秀莉等: "高压二次旋转水射流通风治理上隅角瓦斯", 《煤矿安全》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206578A (en) * | 2019-06-26 | 2019-09-06 | 耿全利 | A kind of buried pumping method of face upper corner angle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103850698B (en) | 2017-01-25 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 |