CN101644165A - Method and system for negative pressure-induced dust removal in coal preparation plant - Google Patents
Method and system for negative pressure-induced dust removal in coal preparation plant Download PDFInfo
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- CN101644165A CN101644165A CN200810147338A CN200810147338A CN101644165A CN 101644165 A CN101644165 A CN 101644165A CN 200810147338 A CN200810147338 A CN 200810147338A CN 200810147338 A CN200810147338 A CN 200810147338A CN 101644165 A CN101644165 A CN 101644165A
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Abstract
The invention discloses a method and a system for negative pressure-induced dust removal. The method comprises that: an atomization plant capable of generating water fog is arranged in a mine roadway,and a plurality of spraying points are arranged according to a temperature and humidity in the mine; the atomization plant comprises a pump station, an air compressor and a plurality of spraying assemblies; and when the atomization plant is used, the coal dust is wetted in advance, the water fog is atomized twice and then rotatably sprayed, and the wetted coal dust is sucked in a dust removing fan, purified by the dust removing fan and then discharged in a mode of slurry water. Compared with the conventional wet type dust removing method, the device of the invention has the advantages of highdust removal efficiency, less water consumption and reliable performance and can more effectively prevent and remove dust in all environments of the coal preparation plant with few influences on coalquality.
Description
Technical field
The utility model relates to a kind of mine dust collection method, particularly a kind of negative pressure-induced dust collection method.
Background technology
The coal separation dust prevention and control is one of important subject of safety of coal mines always.As everyone knows, wet dust removal is that coal preparation plant uses the most general a kind of method.Water can moistening dust, increases grit gravity, and the grit that will carefully loose is polymerized to bigger grit, makes floating dust acceleration sedimentation, and dust fall is difficult for flying upward.
But traditional wet dust removal method is that press water is sprayed on airborne dust point with the form of jet by shower nozzle.The method does not consider that wind field, humiture change the influence to dust, and atomizing effect is relatively poor, and sphere of action is little, and shower nozzle easily stops up, and because of water supply volume is big, influences the quality of coal.
Summary of the invention
Technical problem to be solved by this invention is to avoid the deficiency in the above-mentioned present technology, and the present invention is achieved by the following technical solutions:
A kind of colliery dust collection method, it is provided with the atomising device that produces water smoke in mine laneway, and some spraying points are set according to humiture difference in the mine, and atomising device includes pumping plant, air compressor machine and some spraying assemblies, and pumping plant is linked to each other by pipeline with the spraying assembly with air compressor machine; The spraying assembly includes main body, shower nozzle and end cap; Main body is an annular, and is provided with the two through hole that links to each other with the pumping plant pipeline on its opposite flank; Shower nozzle comprises chassis and nozzle, and this chassis and circumferential body are tightly connected, and this nozzle and chassis are connected as a single entity, and it is identical with the main body axial height, and be axially arranged with the air vent that is connected with the air compressor machine pipeline along main body, and radially be provided with an aperture along main body, aperture is located near the outlet side of nozzle; End cap is fixedlyed connected with main body, and along the nozzle air vent axially be provided with the hole, what air vent was the two ends diameter greater than mid-diameter is horn-like; In advance coal dust is prewetted when atomising device uses, water smoke is inhaled into dedusting fan through secondary-atomizing rotation ejection after coal dust is prewetted, and after dedusting fan purified, coal dust was discharged with the form of black water.
The present invention studies dust collection method and compares with traditional wet dust removal method, this method fully takes into account surroundings wind field, humiture changes the influence to dust, dust direction in accordance with regulations flows, efficiency of dust collection height, little, the dependable performance of water supply volume, can be more effective at the anti-thinning out dirt of each environment of coal preparation plant, ature of coal does not have influence substantially.And improve air ambient, improve comfort level, avoid reentrainment of dust.
Description of drawings
Describe the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is the structure cross-sectional schematic of spraying assembly of the present invention.
Among the figure: 1. main body 2. shower nozzles 21. chassis 22. nozzles
3. end cap 4. air vents 5. apertures
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
A kind of colliery dust collection method, it is provided with the atomising device that produces water smoke in mine laneway, and some spraying points are set according to humiture difference in the mine, atomising device includes a pumping plant, this atomising device also includes an air compressor machine and some spraying assemblies, and pumping plant links to each other with spraying assembly pipeline with air compressor machine; As shown in Figure 1, this spraying assembly includes main body 1, shower nozzle 2 and end cap 3; Main body 1 is an annular, and is provided with the two through hole that links to each other with the pumping plant pipeline on its opposite flank; Shower nozzle comprises chassis 21 and nozzle 22, this chassis 21 is tightly connected with circumferential body 122, this nozzle and chassis 21 are connected as a single entity, and it is identical with main body 1 axial height, and be axially arranged with the air vent 4 that is connected with the air compressor machine pipeline along main body 1, air vent 4 is made as two ends diameter horn-like greater than mid-diameter, and radially is provided with an aperture 5 along main body, and aperture 5 is located near the outlet side of nozzle 22; End cap 3 is fixedlyed connected with main body 1, and axially is provided with venthole along nozzle air vent 4.In advance coal dust is prewetted when this dedusting atomising device uses, water smoke is inhaled into dedusting fan through secondary-atomizing rotation ejection after coal dust is prewetted, and after dedusting fan purified, coal dust was discharged with the form of black water.
The spraying assembly be arranged in the tunnel and the minery in, pumping plant provides water, air compressor machine produces pressure-air, both are connected with the assembly of spraying by pipeline; Water rotates in the cavity of spraying assembly, and the negative pressure that the pressure-air that is ejected produces is taken out of, to the mixture of tunnel or minery ejection mist and little water droplet, the dust in the absorbed air.For the airborne dust point of easy generation dust, can settle some spraying assemblies more.Spraying point be provided with quantity according to humiture in the mine along with change in depth changes: raise and humidity reduces the number of spots of spraying and increases with temperature; The water smoke of spraying point ejection is along with coal dust in the distinguished and admirable absorbed air in the mine laneway and in the minery and moistening wall, and wet dust is collided affine each other and become big, finally drops in the tunnel and in the minery and play the dedusting effect; Easily produce airborne dust point place or mine humiture catastrophe point at dust, being provided with is enough to the spraying point that prevents that dust from kicking up.
Adopt above-mentioned dust collection method, improved airborne relative humidity, be implemented in the dust in the absorbed air in the ventilation, and further catch dust, thereby avoided coal dust to participate in the possibility of blast.
This atomising device spray amount is big, and suitable large space is caught dirt at a distance, negative pressure-induced spraying, and atomizing effect is good, water saving; The mist field is even between whole plenum area, and water quality is not had specific (special) requirements; And spraying assembly volume I is removed at any time, and segmentation connects soon.
Claims (1)
1, a kind of negative pressure-induced dust collection method and system, it is provided with the atomising device that produces water smoke in mine laneway, and some spraying points are set according to humiture difference in the mine, and atomising device includes pumping plant, air compressor machine and some spraying assemblies, and pumping plant is linked to each other by pipeline with the spraying assembly with air compressor machine; The spraying assembly includes main body, shower nozzle and end cap; Main body is an annular, and is provided with the two through hole that links to each other with the pumping plant pipeline on its opposite flank; Shower nozzle comprises chassis and nozzle, and this chassis and circumferential body are tightly connected, and this nozzle and chassis are connected as a single entity, and it is identical with the main body axial height, and be axially arranged with the air vent that is connected with the air compressor machine pipeline along main body, and radially be provided with an aperture along main body, aperture is located near the outlet side of nozzle; End cap is fixedlyed connected with main body, and the axial hole that is provided with along the nozzle air vent, what air vent was the two ends diameter greater than mid-diameter is horn-like, it is characterized in that: in advance coal dust is prewetted when described atomising device uses, water smoke is through secondary-atomizing rotation ejection, be inhaled into dedusting fan after coal dust is prewetted, after dedusting fan purified, coal dust was discharged with the form of black water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810147338A CN101644165A (en) | 2008-08-07 | 2008-08-07 | Method and system for negative pressure-induced dust removal in coal preparation plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810147338A CN101644165A (en) | 2008-08-07 | 2008-08-07 | Method and system for negative pressure-induced dust removal in coal preparation plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101644165A true CN101644165A (en) | 2010-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810147338A Pending CN101644165A (en) | 2008-08-07 | 2008-08-07 | Method and system for negative pressure-induced dust removal in coal preparation plant |
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| CN (1) | CN101644165A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052085A (en) * | 2011-01-24 | 2011-05-11 | 中国矿业大学 | Mine dedusting system and method |
| CN107345476A (en) * | 2017-08-25 | 2017-11-14 | 四川吉赛特科技有限公司 | Down-the-hole rotates vibration air drilling dust Control device |
| CN114922679A (en) * | 2022-06-30 | 2022-08-19 | 安徽理工大学 | Negative pressure entrainment device for coal mine tunnel |
-
2008
- 2008-08-07 CN CN200810147338A patent/CN101644165A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052085A (en) * | 2011-01-24 | 2011-05-11 | 中国矿业大学 | Mine dedusting system and method |
| CN107345476A (en) * | 2017-08-25 | 2017-11-14 | 四川吉赛特科技有限公司 | Down-the-hole rotates vibration air drilling dust Control device |
| CN114922679A (en) * | 2022-06-30 | 2022-08-19 | 安徽理工大学 | Negative pressure entrainment device for coal mine tunnel |
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Application publication date: 20100210 |