CN112228138A - Dust removal device and dust removal method for coal mine coal face - Google Patents
Dust removal device and dust removal method for coal mine coal face Download PDFInfo
- Publication number
- CN112228138A CN112228138A CN202011060091.XA CN202011060091A CN112228138A CN 112228138 A CN112228138 A CN 112228138A CN 202011060091 A CN202011060091 A CN 202011060091A CN 112228138 A CN112228138 A CN 112228138A
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- Prior art keywords
- dust
- waste liquid
- ultrasonic
- coal
- dust removal
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- 239000000428 dust Substances 0.000 title claims abstract description 120
- 239000003245 coal Substances 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 239000002699 waste material Substances 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000000889 atomisation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims 2
- 239000006199 nebulizer Substances 0.000 claims 1
- 238000005065 mining Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000008187 granular material Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 239000003595 mist Substances 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000012459 cleaning agent Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
Abstract
The invention discloses a dust removal device and a dust removal method for a coal mining working face of a coal mine, and belongs to the technical field of coal mine dust removal. The device comprises a dust catching net, a frame body, an ultrasonic sprayer, a waste liquid discharge mechanism and a moving mechanism, wherein the dust catching net is arranged in the frame body; the ultrasonic atomizer comprises a plurality of ultrasonic atomizing nozzles, wherein each ultrasonic atomizing nozzle is connected with a water supply device, and water mist is sprayed to the coal face through each ultrasonic atomizing nozzle; the waste liquid discharge mechanism is including being located the basin of catching dirt net below, installs the filter in the top of basin, is provided with the filter screen in the filter, will filter from catching the large granule dust in the online side down's of dirt waste liquid through the filter screen, and the waste liquid after the filtration gets into the basin, flows out through the outlet in the basin, and the back that purifies gets into water supply installation and recycles through the clarifier. The dust removal device can enhance the dust removal effect of the coal face and improve the pollution problem caused by high-concentration dust during the production operation of the coal face.
Description
Technical Field
The invention relates to the technical field of coal mine dust removal, in particular to a dust removal device and a dust removal method for a coal mine coal face.
Background
In recent years, with the use of mechanized equipment with large cutting depth, high power and large transportation capacity, the dust amount generated in the coal mining operation process of the working face is greatly increased, and the problem is more prominent particularly for the working face with the super-large mining height. The mining height has far surpassed the distance of traditional spraying dust fall effective action, leads to the easy problem that appears running dirt, leaking dirt, and the dustproof management degree of difficulty is bigger, and the physical and mental health of colliery workman is seriously endangered to a large amount of dust, to the mine that has the coal dust explosion danger, the safety in production in colliery is seriously threatened in the existence of planktonic coal dirt. Therefore, the method has important significance in strengthening the dust prevention management of the fully mechanized mining face with large mining height.
However, the traditional return air dust catching net device is poor in atomization effect, too small in spraying quantity, difficult to realize full-section spraying of a roadway, poor in dust removal effect and incapable of meeting the dust fall requirement of a large mining working face. In addition, original dust catching net frame is heavy, and it is inconvenient to remove, for improving dustproof effect and removal convenience, needs to carry out redesign to original dust catching net device, improves the dust removal mode to improve the dust fall effect.
Disclosure of Invention
One of the purposes of the invention is to provide a dust removal device for a coal face of a coal mine, which can enhance the dust removal effect of the coal face, improve the pollution problem caused by high-concentration dust during the production operation of the coal face and ensure that coal miners work in a safe environment.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dust removal device for a coal mining working face of a coal mine comprises a dust catching net, a frame body, an ultrasonic sprayer, a waste liquid discharge mechanism and a moving mechanism, wherein the dust catching net is arranged in the frame body;
the ultrasonic atomizer comprises a plurality of ultrasonic atomizing nozzles, wherein each ultrasonic atomizing nozzle is connected with a water supply device, a water source is provided for each ultrasonic atomizing nozzle through the water supply device, and water is sprayed to the coal face through each ultrasonic atomizing nozzle; the ultrasonic atomizing nozzles are distributed on two sides, the upper part and the lower part of the dust catching net;
the waste liquid discharge mechanism comprises a water tank positioned below the dust catching net, a filter is arranged above the water tank, a filter screen is arranged in the filter, large particle dust in waste liquid flowing from the upper part of the dust catching net is filtered through the filter screen, and the filtered waste liquid enters the water tank and flows out through a water outlet in the water tank;
the water outlet is connected with the inlet of the water supply device through a drainage pipeline, the inlet of the water supply device is connected with a purifier, and water flowing out of the water outlet is purified through the purifier and then enters the water supply device for recycling;
the moving mechanism can make the frame body move forwards, backwards, leftwards and rightwards.
As a preferable scheme of the invention, the dust catching net is made of nylon, a plurality of grids are arranged on the dust catching net along the horizontal direction and the vertical direction, and the distance between every two adjacent grids in the horizontal direction is 2mm-8 mm.
In another preferred embodiment of the present invention, the ultrasonic atomizing nozzles are installed on the frame body on the left, right, and upper sides of the dust-catching net, the ultrasonic atomizing nozzles are of piezoelectric type, and the spray outlets of the ultrasonic atomizing nozzles form a certain angle with the horizontal direction.
Further preferably, the spray opening of each ultrasonic atomizing nozzle is at an angle of 30 °, 90 ° or 150 ° to the horizontal.
Preferably, the filter screen is made of nylon, and the size of the filter holes in the filter screen is the same as the size of the meshes in the dust catching screen.
Further preferably, the moving structure includes rollers, the rollers are mounted at the bottom of the frame, and the frame is moved by the sliding of a set of rollers.
Another object of the present invention is to provide a dust removing method for a coal face of a coal mine, comprising the steps of:
s1, installing the dust removal device for the coal mine coal face on the coal mine coal face, and moving the dust removal device to a proper position through a moving mechanism;
s2, capturing dust in the coal face through a dust capturing net, opening an ultrasonic sprayer, connecting the ultrasonic sprayer with a water supply device, and spraying the ultrasonic sprayer after water supply from different angles;
s3, enabling the captured dust to enter a waste liquid discharge mechanism under the action of an ultrasonic atomization nozzle, enabling the waste liquid to pass through a filter screen at first, filtering large-particle dust in the waste liquid flowing from the upper side of a dust capture screen through the filter screen, enabling the filtered waste liquid to enter a water tank, and enabling the filtered waste liquid to flow out through a water outlet in the water tank;
and S4, purifying the water flowing out of the water tank by a purifier, and introducing the water into a water supply device for recycling.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a dust removal device for a coal mining working face of a coal mine, which can cover the whole section of the coal mining working face by combining a dust catching net and an ultrasonic atomizing nozzle, and greatly improve the dust removal efficiency.
The invention provides a dust removal device for a coal mining working face of a coal mine, which can be moved freely through rollers arranged at the bottom of a frame body and can be moved to a proper position according to working requirements.
According to the dust removal device for the coal mining working face of the coal mine, the waste liquid is subjected to primary treatment through the filter screen before entering the water tank, large-particle pollutants in the waste liquid are filtered out, the filtered waste liquid is purified through the purifier and then enters the water supply device for recycling, and water sources are saved.
The dust removal device for the coal face of the coal mine can effectively solve the problem of serious dust pollution generated during production operation of the coal face, and ensures safe production of the coal mine and physical health of workers.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a front view of a dust extraction apparatus for a coal mine coal face of the present invention;
FIG. 2 is a top view of a dust extraction apparatus for a coal mine coal face of the present invention;
in the figure:
1. the device comprises a dust catching net 2, an ultrasonic atomizing nozzle 3, a water tank 4, a filter screen 5, rollers 6, a purifier 7, a coal face 8 and an empty roadway.
Detailed Description
The invention provides a dust removal device and a dust removal method for a coal mining working face of a coal mine, and the invention is described in detail with reference to specific embodiments in order to make the advantages and technical scheme of the invention clearer and clearer.
Referring to fig. 1 and 2, the dust removal device for the coal mining working face of the coal mine mainly comprises a dust catching net 1, an ultrasonic atomizing nozzle 2, a water tank 3, a filter screen 4, a roller 5 and a purifier 6, wherein the dust catching net 1 is made of nylon, has the advantages of simple structure, light weight, corrosion resistance and the like, and can be washed by clean water or a cleaning agent for multiple use. The dust catching net is provided with grids along the horizontal direction and the vertical direction, the grid distance in the horizontal direction and the vertical direction is 2mm-8mm, and dust particles in the air are caught as much as possible.
The ultrasonic atomizing nozzles 2 are preferably arranged above and below the dust catching net and on the left side and the right side of the dust catching net, more preferably 6 ultrasonic atomizing nozzles are arranged above and below the dust catching net and 3 ultrasonic atomizing nozzles are arranged on the left side and the right side of the dust catching net, and the proper amount of ultrasonic atomizing nozzles can reduce water consumption and ensure dust falling efficiency; the ultrasonic atomizing nozzle adopts a piezoelectric atomizing nozzle, water drops of the nozzle are fine and smooth, the coverage area of the dust catching net is large, and suspended dust in air can be effectively adsorbed. By adjusting the spray angle of each nozzle, the spray opening of the ultrasonic atomizing nozzle forms an included angle of 30 degrees, 90 degrees or 150 degrees with the horizontal direction, so that the mist field can cover the whole dust catching net. The spray field can effectively cover the space from the coal wall of the coal face to the full section of the support upright post, and effectively control and remove high-concentration dust generated by cutting of the roller of the coal mining machine.
The above roller 5 is preferably a rubber wheel, has the advantages of wear resistance and difficulty in air leakage, can effectively save cost, can rotate by 360 degrees, is convenient to move, can be installed according to the specific conditions of a roadway, and can reserve a spare part for the passing of personnel and equipment.
The rollers can be four or two. The skilled person can make the choice according to the actual situation.
The dust removal device for the coal face of the coal mine is arranged on the coal face 7, and a vacant roadway 8 between the dust removal device and the coal face can facilitate the entering and exiting of workers, so that the production operation is not influenced while dust is captured.
The dust removing method of the present invention will be described in detail with reference to the above-mentioned apparatus.
The invention relates to a dust removal method for a coal mining working face of a coal mine, which specifically comprises the following steps:
firstly, the dust removal device for the coal mining working face of the coal mine is arranged on the coal mining working face of the coal mine and is moved to a proper position through a moving mechanism, and if a vacant roadway is reserved between the dust removal device and the coal mining working face, workers can conveniently go in and out;
secondly, capturing dust in the coal face through a dust capturing net, opening an ultrasonic sprayer, connecting the ultrasonic sprayer with a water supply device, and spraying the ultrasonic sprayer from different angles after water supply;
thirdly, the captured dust enters a waste liquid discharge mechanism under the action of an ultrasonic atomization nozzle, the waste liquid firstly passes through a filter screen, large-particle dust in the waste liquid flowing from the upper side of a dust capture net is filtered through the filter screen, and the filtered waste liquid enters the water tank and flows out through a water outlet in the water tank;
and fourthly, purifying the water flowing out of the water tank by a purifier, and introducing the water into a water supply device for recycling.
The dust removal device for the coal face of the coal mine can effectively reduce the dust concentration of the coal face by combining the ultrasonic atomizing nozzle, the dust catching net and the like, and has the advantages of convenience in maintenance, convenience in movement, strong corrosion resistance and the like.
The parts which are not described in the invention can be realized by taking the prior art as reference.
It should be noted that: any equivalents or obvious modifications thereof which may occur to persons skilled in the art and which are given the benefit of this description are deemed to be within the scope of the invention.
Claims (7)
1. The utility model provides a dust collector for colliery coal face, its is including catching dirt net, frame body, ultrasonic nebulizer, waste liquid discharge mechanism and moving mechanism, its characterized in that:
the dust catching net is arranged in the frame body;
the ultrasonic atomizer comprises a plurality of ultrasonic atomizing nozzles, wherein each ultrasonic atomizing nozzle is connected with a water supply device, a water source is provided for each ultrasonic atomizing nozzle through the water supply device, and water is sprayed to the coal face through each ultrasonic atomizing nozzle; the ultrasonic atomizing nozzles are distributed on two sides, the upper part and the lower part of the dust catching net;
the waste liquid discharge mechanism comprises a water tank positioned below the dust catching net, a filter is arranged above the water tank, a filter screen is arranged in the filter, large particle dust in waste liquid flowing from the upper part of the dust catching net is filtered through the filter screen, and the filtered waste liquid enters the water tank and flows out through a water outlet in the water tank;
the water outlet is connected with the inlet of the water supply device through a drainage pipeline, the inlet of the water supply device is connected with a purifier, and water flowing out of the water outlet is purified through the purifier and then enters the water supply device for recycling;
the moving mechanism can make the frame body move forwards, backwards, leftwards and rightwards.
2. A dust extraction apparatus for a coal mine coal face as claimed in claim 1, wherein: the dust catching net is made of nylon materials, a plurality of grids are arranged on the dust catching net in the horizontal direction and the vertical direction, and the distance between every two adjacent grids in the horizontal direction is 2mm-8 mm.
3. A dust extraction apparatus for a coal mine coal face as claimed in claim 1, wherein: the ultrasonic atomizing nozzles are installed on the frame bodies on the left side, the right side and the upper side of the dust catching net, the ultrasonic atomizing nozzles are piezoelectric type, and the atomizing nozzles of the ultrasonic atomizing nozzles form certain included angles with the horizontal direction respectively.
4. A dust extraction apparatus for a coal mine coal face as claimed in claim 3, wherein: the spray opening of each ultrasonic atomizing nozzle forms an included angle of 30 degrees, 90 degrees or 150 degrees with the horizontal direction.
5. A dust extraction apparatus for a coal mine coal face as claimed in claim 1, wherein: the filter screen is made of nylon materials, and the size of filter holes in the filter screen is the same as that of grids in the dust catching screen.
6. A dust extraction apparatus for a coal mine coal face as claimed in claim 1, wherein: the moving structure comprises rollers, the rollers are arranged at the bottom of the frame body, and the frame body is driven to move through the sliding of a group of rollers.
7. A dust removal method for a coal mine coal face is characterized in that the dust removal device for the coal mine coal face, which is disclosed by any one of claims 1 to 6, is adopted, and the method is characterized in that: the dust removal method sequentially comprises the following steps:
s1, installing the dust removal device for the coal mine coal face on the coal mine coal face, and moving the dust removal device to a proper position through a moving mechanism;
s2, capturing dust in the coal face through a dust capturing net, opening an ultrasonic sprayer, connecting the ultrasonic sprayer with a water supply device, and spraying the ultrasonic sprayer after water supply from different angles;
s3, enabling the captured dust to enter a waste liquid discharge mechanism under the action of an ultrasonic atomization nozzle, enabling the waste liquid to pass through a filter screen at first, filtering large-particle dust in the waste liquid flowing from the upper side of a dust capture screen through the filter screen, enabling the filtered waste liquid to enter a water tank, and enabling the filtered waste liquid to flow out through a water outlet in the water tank;
and S4, purifying the water flowing out of the water tank by a purifier, and introducing the water into a water supply device for recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011060091.XA CN112228138A (en) | 2020-09-30 | 2020-09-30 | Dust removal device and dust removal method for coal mine coal face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011060091.XA CN112228138A (en) | 2020-09-30 | 2020-09-30 | Dust removal device and dust removal method for coal mine coal face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112228138A true CN112228138A (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011060091.XA Pending CN112228138A (en) | 2020-09-30 | 2020-09-30 | Dust removal device and dust removal method for coal mine coal face |
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| Country | Link |
|---|---|
| CN (1) | CN112228138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113332824A (en) * | 2021-06-24 | 2021-09-03 | 扬州正扬电力科技有限公司 | Coal face filters dust collector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206190311U (en) * | 2016-10-26 | 2017-05-24 | 大同煤矿集团有限责任公司 | Dirt net is caught in pit automatically in colliery |
| CN209155439U (en) * | 2018-11-05 | 2019-07-26 | 昆明理工大学 | A kind of device for reducing dust for coal mining |
| CN209959283U (en) * | 2019-05-29 | 2020-01-17 | 张�杰 | Dust net is caught with spraying purification in coal mine tunnel |
| CN111691911A (en) * | 2020-07-06 | 2020-09-22 | 陈全秋 | Coal mine excavation working face wind current atomization device |
-
2020
- 2020-09-30 CN CN202011060091.XA patent/CN112228138A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206190311U (en) * | 2016-10-26 | 2017-05-24 | 大同煤矿集团有限责任公司 | Dirt net is caught in pit automatically in colliery |
| CN209155439U (en) * | 2018-11-05 | 2019-07-26 | 昆明理工大学 | A kind of device for reducing dust for coal mining |
| CN209959283U (en) * | 2019-05-29 | 2020-01-17 | 张�杰 | Dust net is caught with spraying purification in coal mine tunnel |
| CN111691911A (en) * | 2020-07-06 | 2020-09-22 | 陈全秋 | Coal mine excavation working face wind current atomization device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113332824A (en) * | 2021-06-24 | 2021-09-03 | 扬州正扬电力科技有限公司 | Coal face filters dust collector |
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Application publication date: 20210115 |