CN109139007A - A kind of spraying injection type dust-contained airflow control method and device for inhaling function with side - Google Patents
A kind of spraying injection type dust-contained airflow control method and device for inhaling function with side Download PDFInfo
- Publication number
- CN109139007A CN109139007A CN201811107523.0A CN201811107523A CN109139007A CN 109139007 A CN109139007 A CN 109139007A CN 201811107523 A CN201811107523 A CN 201811107523A CN 109139007 A CN109139007 A CN 109139007A
- Authority
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- China
- Prior art keywords
- dust
- contained airflow
- spraying
- injection
- coalcutter
- 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.)
- Granted
Links
- 238000005507 spraying Methods 0.000 title claims abstract description 43
- 238000002347 injection Methods 0.000 title claims abstract description 38
- 239000007924 injection Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003245 coal Substances 0.000 claims abstract description 31
- 238000005065 mining Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000008676 import Effects 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 35
- 238000005520 cutting process Methods 0.000 abstract description 7
- 230000004888 barrier function Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000003818 cinder Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
- E21C35/223—Equipment associated with mining machines for sucking dust-laden air from the cutting area, with or without cleaning of the air
-
- 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
- E21F5/04—Spraying barriers
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)
- Mechanical Engineering (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Cleaning In General (AREA)
Abstract
The present invention relates to the dust removal fields in coal mining, relate to a kind of spraying injection type dust-contained airflow control method and device that function is inhaled with side.Present invention employs dust-break curtains to carry out physical barrier to the dust that coal mining machine roller coal cutting generates, it is also arranged in using one group and injection is carried out to dust air-flow by spraying with the wind on the relatively-stationary cantilever lever of coalcutter, it there also is provided a set of side below cantilever lever and inhale device, side-draught hood is arranged in dust concentrated area.A part of dust-contained airflow is inhaled device by side and is purified, another part dust-contained airflow inhales the common injection of device by spraying and side with the wind, it migrates along coal wall side, the insufficient problem of injection air quantity caused by the controlled dirt length limitation of existing dust-contained airflow control device is compensated for, the dust concentration at coalcutter driver and at fuselage downwind side is significantly reduced.
Description
Technical field
The present invention relates to coal mine dedusting field, in particular to a kind of spraying injection type ash-laden gas flow control that function is inhaled with side
Method and apparatus processed.
Background technique
When coal mining machine operation the coal cutting of weather side roller and be caving impact dust be current fully-mechanized mining working treating flour dust weight
Point and difficult point.Especially during coalcutter contrary wind coal cutting weather side roller cut top coal cause its front region be caving impact produce
Dirt is very serious, will form the dust-contained airflow of high concentration under the action of distinguished and admirable and migrates to rocker arm position rapidly, then again by
The rocker arm of rise climbs over cable trough after stopping, and finally diffuses and diffuses to pavement side, and coalcutter driver and its leeward is caused to make
Dust concentration in industry region seriously threatens mine safety production and the body and mind of operating personnel considerably beyond national relevant regulations
Health.
It is at present dust-contained airflow control technology for coalcutter coal cutting treating flour dust more effective measures, it is external such as beauty
State, Australia etc. are by arranging that on coalcutter windward end and fuselage, several groups are realized towards being sprayed for coal wall with the wind to containing
The control of dust and gas stream can be such that the dust concentration at coalcutter driver significantly reduces；Domestic China Coal Science and Industry Group Chongqing Research Institute has
Limit company uses for reference technique and carried out field test in one mine of Yang Mei group in 2008, and achieves 80% or so depositing dust effect
Fruit, but do not efficiently solve the site technique corresponding problem of dust-contained airflow control device；The research of Hou Zhongmeike work group Chongqing
The coal-smits Shanxi Anhe coalfield in Shanxi has carried out further research to Co., Ltd of institute again, devise it is a set of based on dust-break curtain and
The spraying dust-contained airflow control device of injection can make dust concentration at coalcutter driver reduce about 80% or more, and reliability and
Applicability is able to satisfy the severe operating environment of underground coal mine, and the site technique for efficiently solving dust-contained airflow control technology is matched
Set problem.But in view of reducing coal wall caving and crossing the influence of end, the length of device farthest only may extend to windward roller side
Injection deficiency in draught is caused in edge position, causes in the biggish situation of working face dust-producing amount, and still some dust can be from device
Front end diffuse out and diffuse to pavement, polluted the operating environment in the middle part of coalcutter at driver.
Summary of the invention
It is an object of the invention to overcome to be sprayed injection wind-force deficiency in the prior art, front end of the dust from device is caused
The problem of diffusing out the operating environment in the middle part of diffusing to pavement, polluted coalcutter at driver,
A kind of spraying injection type dust-contained airflow control method and device for inhaling function with side is provided, fully mechanized mining work can be effectively enhanced
The injection wind-force for making face achievees the purpose that effectively control dust-contained airflow migrates along coal wall.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical schemes:
A kind of spraying injection type dust-contained airflow control method and device for inhaling function with side, including cantilever lever, cantilever lever are fixed
In on coalcutter weather side running part, further including dust-break curtain, dust-break curtain is suspended on the cantilever lever side, and the effect of dust-break curtain is
The dust that coal cutting and coal cinder are caving generation is blocked in a semi-enclosed space.It is described that containing for injection is inhaled and be sprayed using side
Dust and gas method of flow control, while using following two mode and the dust and gas stream of coalcutter windward roller near zone is drawn
It penetrates:
Mode one carries out injection using dust and gas stream of the spraying device with the wind to coalcutter windward roller near zone top；It is described
The high-speed motion spray stream that spraying device utilizes nozzle to spray with the wind migrates dust-contained airflow injection to along coal wall side, simultaneously
The spray stream of ejection can carry out wet sedimentation to dust.
Mode two attracts injection device to aspirate the dust-contained airflow of coalcutter windward roller near zone lower part using side
Formula injection；The high concentration dust-contained airflow suction that the side is formed when inhaling device for coal mining machine in full-mechanized mining face weather side roller coal cutting
Device is inhaled into the side, is then ejected by the outlet that device is inhaled in side, and form injection air-flow, guides dust-contained airflow along coal wall
Migration.
Further, in mode one, the spraying device with the wind is mounted on the cantilever lever, described to fill by spraying with the wind
It sets including several nozzles, several described nozzles are axially arranged along the cantilever lever.The effect of generation is: several nozzles
The injection water mist of ejection is capable of forming one of water mist wall, by dust Control in a semi-enclosed space together with the dust-break curtain
In, on the other hand, dust can be moistened and be settled by the water mist ejected, it is often more important that, the water mist ejected
Injection air-flow is formed, dust-contained airflow injection is migrated to along coal wall side.
Further, in mode two, it includes side-draught hood, side draught pipe and spraying injector, side that spraying device is inhaled in the side
Suction hood is connected with one end of side draught pipe, and spraying injector is connected with the other end of side draught pipe.The effect of generation is: side-draught hood
Side suction effect can be better played, side draught pipe can then extend the length that spraying device is inhaled in entire side, so that spraying injector
It can be arranged in coalcutter machine side suitable position, can be carried out very well with the coalcutter of different structure mating.
Further, the side-draught hood is fixed on the lower section of the cantilever lever, and the side-draught hood is below the cantilever lever
Position be able to carry out adjustment.By adjusting position of the side-draught hood below the cantilever lever, the side is enabled to inhale
The aperture position of cover is in high concentrate dust aggregation region.
Compared with prior art, beneficial effects of the present invention:
1 present invention carries out injection to dust-contained airflow by using spraying device with the wind, attracts injection device to dust-contained airflow using side
The mode aspirated, effectively compensate for the controlled dirt length limitation of existing dust-contained airflow control device and caused by injection air quantity
Insufficient problem, solves the problems, such as the dust recycling at coalcutter windward roller to pavement, has been greatly reduced and has been located at people
Dust concentration at the coalcutter medium position driver of trade, total dust dustfall efficiency are greater than 85%, and respirable dust dustfall efficiency is big
In 80%.
Detailed description of the invention:
Fig. 1 is schematic front view of the invention
Fig. 2 is schematic top plan view of the invention
Fig. 3 is the structural schematic diagram of spraying injector
Fig. 4 is the structural schematic diagram of side-draught hood
Marked in the figure: 1- coalcutter, 2- cantilever lever, 3- side-draught hood, 4- side draught pipe, 5- are sprayed injector,
6- spraying device with the wind, 7- dust-break curtain, 8- roller, 9- rocker arm, 10- driving nozzle.
Specific embodiment
Below with reference to test example and specific embodiment, the present invention is described in further detail.But this should not be understood
It is all that this is belonged to based on the technology that the content of present invention is realized for the scope of the above subject matter of the present invention is limited to the following embodiments
The range of invention.
Embodiment 1
Such as Fig. 1-2, cantilever lever 2 is fixed on the running part end of 1 windward roller side of coalcutter, and dust-break curtain 7 is suspended on cantilever lever 2
On, spraying device 6 is mounted on cantilever lever 2 with the wind, with the wind axial direction arrangement of several nozzles of spraying device 6 along cantilever lever 2.Side
Inhaling spraying device includes side-draught hood 3, side draught pipe 4 and spraying injector 5, and side draught pipe 4 is tubular structure, and one end of side draught pipe 4 connects
Side-draught hood 3 is connect, the other end connects spraying injector 5.As shown in Figure 3-4, side-draught hood 3 is the disk-like structure of big opening, is drawn by spraying
Radial direction of the emitter 5 along exit is disposed with driving nozzle 10, and side-draught hood 3 is arranged in the lower section of cantilever lever 2, and side-draught hood 3 is in cantilever
The specific location of 2 lower section of bar can be adjusted, and side-draught hood 3 is enabled to be exactly in accumulation of ash region, spraying 5 cloth of injector
It sets before 9 rear position of rocker arm and coalcutter driver, migrates in order to carry out injection again to dust-contained airflow along coal wall, reduction is adopted
Dust content at coal machine driver.
When work, A is to the migration direction for dust-contained airflow, when the roller 8 of coalcutter weather side cuts top coal, what coal cutting generated
The collapse dust of generation of dust and coal cinder is mixed in air and forms dust-contained airflow, and dust-contained airflow largely escapes into people in order to prevent
Trade, dust-break curtain 7 can carry out physical barrier to part dust, and the spray stream that spraying device 6 ejects with the wind is to ash-laden gas
Stream carries out injection, and guidance dust-contained airflow is migrated along the coal wall of 8 side of roller；On the other hand, spraying device 6 ejects with the wind
Spray stream wet sedimentation can be carried out to dust-contained airflow.The spray stream that spraying injector 5 projects can form negative at side-draught hood 3
Pressure has accumulated a large amount of dust in the semi-enclosed space that dust-break curtain 7 and rocker arm 9 form, these dust-contained airflows are pumped into side
Suction hood 3 flows through side draught pipe 4, is finally projected by spraying injector 5.When the dust-contained airflow of fully-mechanized mining working passes through rocker arm along the direction A
9, it is hindered rear part dust-contained airflow and climbs along rocker arm 9, the spray stream that spraying injector 5 projects climbs to the part
Dust further progress injection, migrate along coal wall side, while wet sedimentation is carried out to dust-contained airflow, effectively reduces coal mining
Dust concentration in the middle part of machine at driver.
Claims (4)
1. a kind of spraying injection type dust-contained airflow control method and device for inhaling function with side, including cantilever lever, cantilever lever are solid
Due on coalcutter weather side running part, further including dust-break curtain, dust-break curtain is suspended on the cantilever lever side, which is characterized in that
Following two mode is used simultaneously, and injection is carried out to the dust-contained airflow of coalcutter windward roller near zone:
Mode one carries out injection using dust-contained airflow of the spraying device with the wind to coalcutter windward roller near zone top, makes
Fully-mechanized mining working top dust-contained airflow is flowed along coal wall, and the spraying device with the wind includes several nozzles, the water that nozzle sprays
Mist can carry out injection to dust-contained airflow；
Mode two attracts injection device to draw the dust-contained airflow progress drawing-in type of coalcutter windward roller near zone lower part using side
It penetrates, side attracts injection device one end to have import, and the other end has outlet, and the side attracts injection device that can inhale dust-contained airflow from import
Enter, is then projected after purified processing from outlet.
2. the spraying injection type dust-contained airflow control method and device according to claim 1 for inhaling function with side, special
Sign is, in mode one, the spraying device with the wind is mounted on the cantilever lever, several described nozzles are along the cantilever
Bar is axially arranged.
3. the spraying injection type dust-contained airflow control method and device according to claim 2 for inhaling function with side, special
Sign is, in mode two, it includes side-draught hood, side draught pipe and spraying injector that spraying device is inhaled in the side, and side-draught hood and side are inhaled
One end of pipe is connected, and spraying injector is connected with the other end of side draught pipe.
4. the spraying injection type dust-contained airflow control method and device according to claim 3 for inhaling function with side, special
Sign is that the side-draught hood is fixed on the lower section of the cantilever lever, and position of the side-draught hood below the cantilever lever can
It is adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107523.0A CN109139007B (en) | 2018-09-21 | 2018-09-21 | Spray injection type dust-containing airflow control method and device with side suction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107523.0A CN109139007B (en) | 2018-09-21 | 2018-09-21 | Spray injection type dust-containing airflow control method and device with side suction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109139007A true CN109139007A (en) | 2019-01-04 |
| CN109139007B CN109139007B (en) | 2020-05-12 |
Family
ID=64823095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811107523.0A Active CN109139007B (en) | 2018-09-21 | 2018-09-21 | Spray injection type dust-containing airflow control method and device with side suction function |
Country Status (1)
| Country | Link |
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| CN (1) | CN109139007B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180291A (en) * | 2019-06-18 | 2019-08-30 | 浦塔环保科技（上海）有限公司 | Absorb spraying equipment and including its to spray dust pelletizing system |
| CN111075446A (en) * | 2019-12-09 | 2020-04-28 | 中煤科工集团重庆研究院有限公司 | High-efficient dust extraction device suitable for even adopt quick-witted low level dirt source |
| CN111677545A (en) * | 2020-05-28 | 2020-09-18 | 安徽理工大学 | Combine and adopt working face gas-liquid spraying dust fall system |
| CN111894581A (en) * | 2020-08-26 | 2020-11-06 | 中煤科工集团重庆研究院有限公司 | Coal cutter coal cutting and dust production flow separation control dust and dust falling method |
| CN114893180A (en) * | 2022-04-26 | 2022-08-12 | 秦兵文 | Dust device and coal-winning machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180291A (en) * | 2019-06-18 | 2019-08-30 | 浦塔环保科技（上海）有限公司 | Absorb spraying equipment and including its to spray dust pelletizing system |
| CN110180291B (en) * | 2019-06-18 | 2024-05-17 | 浦塔环保科技（上海）有限公司 | Dust collection and injection equipment and opposite spraying dust removal system comprising same |
| CN111075446A (en) * | 2019-12-09 | 2020-04-28 | 中煤科工集团重庆研究院有限公司 | High-efficient dust extraction device suitable for even adopt quick-witted low level dirt source |
| CN111075446B (en) * | 2019-12-09 | 2021-09-28 | 中煤科工集团重庆研究院有限公司 | High-efficient dust extraction device suitable for even adopt quick-witted low level dirt source |
| CN111677545A (en) * | 2020-05-28 | 2020-09-18 | 安徽理工大学 | Combine and adopt working face gas-liquid spraying dust fall system |
| CN111677545B (en) * | 2020-05-28 | 2021-06-25 | 安徽理工大学 | Combine and adopt working face gas-liquid spraying dust fall system |
| CN111894581A (en) * | 2020-08-26 | 2020-11-06 | 中煤科工集团重庆研究院有限公司 | Coal cutter coal cutting and dust production flow separation control dust and dust falling method |
| CN114893180A (en) * | 2022-04-26 | 2022-08-12 | 秦兵文 | Dust device and coal-winning machine |
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