CN210564620U - Underground mine return air shaft defogging dust device - Google Patents
Underground mine return air shaft defogging dust device Download PDFInfo
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- CN210564620U CN210564620U CN201921474444.3U CN201921474444U CN210564620U CN 210564620 U CN210564620 U CN 210564620U CN 201921474444 U CN201921474444 U CN 201921474444U CN 210564620 U CN210564620 U CN 210564620U
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- shaft
- corona wire
- return air
- defogging
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- 239000000428 dust Substances 0.000 title claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000007921 spray Substances 0.000 claims abstract description 23
- 239000003595 mist Substances 0.000 claims abstract description 22
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 230000003068 static effect Effects 0.000 claims abstract description 7
- 238000005065 mining Methods 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 abstract description 4
- 238000007791 dehumidification Methods 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 description 11
- 150000002500 ions Chemical class 0.000 description 8
- 230000005684 electric field Effects 0.000 description 5
- 239000011449 brick Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
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- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000026058 directional locomotion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses a demisting and dust settling device for an underground mine air return shaft, wherein a rectifier (2) is connected with an external power supply (1) in a mining area through a cable and then arranged in an industrial field outside the air return shaft (11); the corona wire (4) is vertically and vertically arranged at the center of a shaft of the air return shaft (11) from top to bottom, the dust and water mist trapping polar plates (6) are uniformly arranged along the wall surface of the air return shaft (11) in a circle, and the insulating ceramic tiles (7) are arranged between the wall surface of the air return shaft (11) and the dust and water mist trapping polar plates (6); the annular water supply pipe (9) is fixed and encircled on the dust water mist trapping polar plate (6), and a group of spray heads (8) are arranged on the annular water supply pipe at intervals. The utility model has the advantages of simple structure, management convenience, dust fall defogging are efficient and do not increase ventilation system resistance, and high-pressure static catches dirt efficiency and reaches more than 95%, and dehumidification efficiency is high, eliminates the dense fog of the outer row of return air shaft "chimney" form basically.
Description
Technical Field
The utility model relates to an underground mine return air shaft defogging dust device, specially adapted deep well high-temperature and high-humidity underground mine and high dust concentration underground mine.
Background
The underground mine air return shaft plays a role in discharging underground high-temperature high-humidity dust-containing dirty air, the dirty air is discharged out of the ground surface through the air return shaft and is rapidly released along with temperature and pressure, the air is rapidly saturated and then is condensed to form dense white fog, the air return shaft is high in dirty air speed, tens of meters of dense fog similar to a chimney can be formed above a well head, the visual influence range exceeds several kilometers, and surrounding residents are uneasy to see. Meanwhile, a large amount of dust is discharged to the atmosphere together, so that serious environmental pollution is caused.
With the improvement of public environmental awareness, people pay more attention to surrounding pollution sources. Residents around the mine complain to the environmental protection department and go to the maintenance event of the mine enterprise, and the outside exhaust air of the return air shaft destroys the environment and the economic benefit and social image of the enterprise.
Disclosure of Invention
The utility model aims at providing an underground mine return air shaft defogging dust device to the above-mentioned problem that prior art exists, both can eliminate the white dense fog that highly humid air was arranged outward and meets cold production behind the earth's surface, reduce the dust concentration of the outer exhaust foul air of return air shaft, do not increase ventilation system resistance again.
For realizing the above purpose of the utility model, the utility model relates to an underground mine return air shaft defogging dust device adopts following technical scheme:
the utility model relates to an underground mine return air shaft defogging dust device takes place system, static control system, ionization dust fall defogging system and sprays the rinse-system combination by direct current high pressure and constitutes: the direct-current high-voltage generation system comprises a rectifier, and the rectifier is connected with an external power supply of a mining area through a cable and then arranged in an industrial field outside the return air shaft; the static control system comprises a transformer and a power supply control switch; the ionization dust fall defogging system is composed of a corona wire serving as a cathode, a dust water mist trapping polar plate serving as an anode and an insulating ceramic tile, wherein the corona wire is vertically and vertically arranged at the position of the circle center of a shaft of the return air shaft from top to bottom, the dust water mist trapping polar plate is uniformly arranged along the wall surface of the return air shaft for a circle, and the insulating ceramic tile is arranged between the wall surface of the return air shaft and the dust water mist trapping polar plate. One end of the transformer and the power control switch is connected with the rectifier, and the other end of the transformer and the power control switch is connected with a corona wire vertically arranged at the circle center of a shaft of the return air shaft; the spraying and washing system consists of an annular water supply pipe fixed and surrounded on the dust water mist collecting polar plate and a group of spray heads arranged on the annular water supply pipe at intervals, and the annular water supply pipe is mutually connected with a mine water supply system.
In order to ensure that the corona wire is vertically fixed and does not swing, a wellhead corona wire fixing rigid pull rod is arranged at the wellhead of the return air shaft on the upper portion of the corona wire from the center to the periphery, a straightening plumb bob is arranged at the lower portion of the corona wire, and a return air shaft internal corona wire fixing rigid pull rod is arranged from the upper portion of the plumb bob to the periphery of the return air shaft, so that the corona wire is ensured to be vertically arranged and does not swing under the influence of a return air field.
The fixed rigid pull rod of the wellhead corona wire and the fixed rigid pull rod of the corona wire in the return air shaft are arranged in a cross manner, and the cross point is connected with the corona wire.
6-18 spray heads are uniformly arranged on the annular water supply pipe along the circumferential direction, the spray heads spray water downwards at an angle of 30-60 degrees in the direction intersecting with the dust water mist trapping polar plate, and the spray heads spray water in a discontinuous working state.
Setting the length of the dust water mist trapping polar plate as L2; the upper end of the dust water mist trapping pole plate is required to be reserved with a sufficient length L1 from the mouth of the return air shaft.
The dust water mist trapping polar plate can be made by rolling a stainless steel plate.
In order to ensure that the charged dust and water vapor particles can be completely attached to the collecting plate, L1 has enough length, L2 is more than y, L1 is (1.3-1.7) y, and L2 is (1.8-2.3) y; in general, L1 is 1.5y, and L2 is 2 y.
The utility model relates to an underground mine return air shaft defogging dust device forms powerful electric field between corona wire and dust water smoke entrapment polar plate (positive pole) behind the system's power supply, makes the air molecule by the ionization, produces a large amount of electrons and positive, negative ions in the twinkling of an eye, and dust and vapor intermixture in electrified ion and the air make it have electric charge, and the ion of taking the point makes directional motion under the effect of electric field force, and dust and vapor finally enrich on dust water smoke entrapment polar plate.
Laboratory research and industrial test verify and show, the utility model relates to an underground mine return air shaft defogging dust device has following positive effect after adopting above technical scheme:
(1) the high-voltage electrostatic dust collection efficiency reaches more than 95 percent, zero dust emission is realized, the dehumidification efficiency is high, and chimney-shaped dense fog discharged from the return air shaft is basically eliminated;
(2) the structure of the wellhead of the return air shaft in the prior art is eliminated, the defect that the local resistance of the wellhead of the ventilation system is increased in the prior art is overcome, and the energy consumption of the ventilation system is reduced by over 10 percent;
(3) the device has simple structure, convenient later-stage operation management and maintenance, no industrial site occupation and low construction cost.
Drawings
FIG. 1 is a schematic view of the structural arrangement of the demisting and dust settling device for the underground mine air return shaft;
fig. 2 is a top view of fig. 1.
The reference signs are: 1-mine external power supply; 2-a rectifier; 3-transformer and power control switch; 4-corona wire (cathode); 5-plumb bob; 6-dust water mist trapping polar plate (anode); 7-insulating ceramic tiles; 8, a spray head; 9-annular water supply pipe; 10, fixing a rigid pull rod by a wellhead corona wire; 10' -fixing a rigid pull rod by a corona wire in the return air shaft; 11-return air shaft.
Detailed Description
For better describing the utility model discloses, it is right below with the accompanying drawing the utility model discloses underground mine return air shaft defogging dust device does further detailed description.
Shown by figure 1 the utility model discloses underground mine return air shaft defogging dust device structural arrangement schematic diagram combines figure 2 to see out, the utility model discloses underground mine return air shaft defogging dust device takes place system, static control system, ionization dust fall defogging system and sprays the rinse-system combination by direct current high pressure and constitute.
The direct-current high-voltage generation system comprises a rectifier 2, the rectifier 2 is a device for converting alternating current into direct current, and the rectifier 2 is connected with an external power supply 1 of a mining area through a cable and then arranged in an industrial field outside the air return shaft 11.
The static control system include transformer and power control switch 3, transformer and power control switch) one end link to each other with rectifier 2, the other end is connected with the upper end of the vertical corona wire 4 of arranging at the pit shaft centre of a circle position of return air shaft 11 perpendicularly, adjust the voltage between corona wire 4 and dust water smoke entrapment polar plate (positive pole) 6 through transformer and power control switch 3, and then adjust the electric field intensity in the return air shaft 11, the voltage can be confirmed according to dust concentration and the humid air atomizing condition in the return air shaft 11.
The ionization dust fall defogging system comprises corona wire 4 as the negative pole, dust water smoke entrapment polar plate 6 as the positive pole and insulating ceramic tile 7, and corona wire 4 top-down vertical arrangement is in the pit shaft centre of a circle position of return air shaft 11, and dust water smoke entrapment polar plate 6 evenly arranges along last a week of return air shaft 11 wall, and insulating ceramic tile 7 is installed in the middle of return air shaft 11 wall and dust water smoke entrapment polar plate 6. A wellhead corona wire fixing rigid pull rod 10 is arranged at the wellhead of the return air shaft 11 on the upper portion of the corona wire 4 from the center to the periphery, a straightening plumb 5 is arranged on the lower portion of the corona wire 4, and a return air shaft internal corona wire fixing rigid pull rod 10' is arranged from the upper portion of the plumb 5 to the periphery of the return air shaft 11 so as to ensure that the corona wire 4 is vertically arranged and does not swing under the influence of a return air wind field. The wellhead corona wire fixing rigid pull rod 10 and the corona wire fixing rigid pull rod 10' in the return air shaft are arranged in a cross mode, and the cross point is connected with the corona wire 4. After the system is powered, a strong electric field is formed between the corona wire 4 and the dust water mist trapping polar plate 6, so that air molecules are ionized to instantly generate a large number of electrons, positive ions and negative ions, the charged ions are mixed with dust and water vapor in the air to charge the charged ions, the charged ions move directionally under the action of the electric field force, and the dust and the water vapor are finally enriched on the trapping polar plate 6.
Corona wire 4, dust water smoke entrapment polar plate 6, insulating ceramic brick 7 lower extreme parallel and level, dust water smoke entrapment polar plate 6, insulating ceramic brick 7 height, and along 11 vertical arrangement's of return air shaft ionization dust fall defogging system must have sufficient length, the length of establishing dust water smoke entrapment polar plate 6 is L2, length L1 is reserved apart from 11 wellheads of return air shaft to the 6 upper ends of dust water smoke entrapment polar plate, it is along vertical movement's distance y on the dust water smoke entrapment polar plate to have the dust of lotus and vapor granule attached to, generally get L1 ═ 1.5y, L2 ═ 2 y.
The spraying and washing system consists of an annular water supply pipe 9 fixed and surrounded on the dust water mist collecting polar plate 6 and 12 spray heads 8 arranged on the annular water supply pipe 9 at intervals, the included angle of the planes of the adjacent spray heads is 30 degrees, the annular water supply pipe 9 is mutually connected with a mine water supply system and is controlled by a ball valve; the direction of the spray head 8 is intersected with the dust water mist collecting polar plate 6 for spraying water downwards at 45 degrees, and the spray head 8 sprays water in a discontinuous working state. And spraying by boiled water regularly according to the enrichment degree of the dust on the dust water mist trapping polar plate 6 to wash the trapped dust. The washed dust-containing water flows down to the underground return air main roadway along the wall surface of the return air shaft 11 and enters an underground drainage system.
Claims (5)
1. The utility model provides an underground mine return air shaft defogging dust device which it comprises direct current high pressure generation system, static control system, ionization dust fall defogging system and the combination of rinse-system that sprays: the direct-current high-voltage generation system comprises a rectifier (2), wherein the rectifier (2) is connected with an external power supply (1) of a mining area through a cable and then arranged in an industrial field outside the air return shaft (11); the static control system comprises a transformer and a power supply control switch (3); the ionization dust-settling demisting system is composed of a corona wire (4) serving as a cathode, a dust water mist trapping polar plate (6) serving as an anode and insulating ceramic tiles (7), wherein the corona wire (4) is vertically and vertically arranged at the circle center of a shaft of the air return well (11) from top to bottom, the dust water mist trapping polar plate (6) is uniformly arranged along the wall surface of the air return well (11) in a circle, and the insulating ceramic tiles (7) are arranged between the wall surface of the air return well (11) and the dust water mist trapping polar plate (6); one end of the transformer and the power control switch (3) is connected with the rectifier (2), and the other end is connected with a corona wire (4) vertically arranged at the center of a circle of a shaft of the return air shaft (11); the spraying and washing system is composed of an annular water supply pipe (9) fixed and surrounded on the dust water mist collecting polar plate (6) and a group of spray heads (8) arranged on the annular water supply pipe (9) at intervals, and the annular water supply pipe (9) is mutually connected with a mine water supply system.
2. The underground mine return air shaft defogging dust device of claim 1, characterized in that: a wellhead of the air return shaft (11) on the upper portion of the corona wire (4) is provided with a wellhead corona wire fixing rigid pull rod (10) from the center to the periphery, the lower portion of the corona wire (4) is provided with a straightening plumb bob (5), and the upper portion of the plumb bob (5) is provided with an air return shaft inner corona wire fixing rigid pull rod (10') to the periphery of the air return shaft (11).
3. The underground mine return air shaft defogging dust device of claim 2, characterized in that: the wellhead corona wire fixing rigid pull rod (10) and the corona wire fixing rigid pull rod (10') in the return air shaft are arranged in a cross mode, and the cross point is connected with the corona wire (4).
4. The underground mine return air shaft defogging and dust fall device of claim 1, 2 or 3 characterized in that: 6-18 spray heads (8) are uniformly arranged on the annular water supply pipe (9) along the circumferential direction, and the spray heads spray water downwards at an angle of 30-60 degrees in the direction intersecting with the dust and water mist collecting polar plate (6).
5. The underground mine return air shaft defogging dust device of claim 4, characterized in that: 12 spray heads (8) are uniformly arranged on the annular water supply pipe (9) along the circumferential direction, the included angle of planes between adjacent spray heads (8) is 30 degrees, and the direction of the spray heads (8) is 45 degrees downward to be intersected with the dust and water mist trapping polar plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474444.3U CN210564620U (en) | 2019-09-06 | 2019-09-06 | Underground mine return air shaft defogging dust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474444.3U CN210564620U (en) | 2019-09-06 | 2019-09-06 | Underground mine return air shaft defogging dust device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210564620U true CN210564620U (en) | 2020-05-19 |
Family
ID=70630716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921474444.3U Active CN210564620U (en) | 2019-09-06 | 2019-09-06 | Underground mine return air shaft defogging dust device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210564620U (en) |
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2019
- 2019-09-06 CN CN201921474444.3U patent/CN210564620U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Patentee after: MAANSHAN Mine Research Institute Co.,Ltd. Address before: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Patentee before: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH Co.,Ltd. |