CN111441814A - Coal mine operation ventilation unit - Google Patents
Coal mine operation ventilation unit Download PDFInfo
- Publication number
- CN111441814A CN111441814A CN202010117368.1A CN202010117368A CN111441814A CN 111441814 A CN111441814 A CN 111441814A CN 202010117368 A CN202010117368 A CN 202010117368A CN 111441814 A CN111441814 A CN 111441814A
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- 238000009423 ventilation Methods 0.000 title claims abstract description 54
- 239000003245 coal Substances 0.000 title claims abstract description 20
- 239000000428 dust Substances 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 11
- 238000004887 air purification Methods 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 5
- 238000004364 calculation method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- 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
-
- 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
- E21F5/20—Drawing-off or depositing dust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention relates to the technical field of coal mine equipment, and discloses a coal mine operation ventilation device which comprises a mounting frame, wherein an air outlet box is fixedly installed on the left side surface of the mounting frame, a main exhaust fan is fixedly installed inside the air outlet box, a working time calculation device is fixedly installed on the side surface of the main exhaust fan, a first ventilation pipe is fixedly communicated with the bottom of the main exhaust fan, a first lateral communication pipe is fixedly communicated with the side surface of the first ventilation pipe, and an auxiliary exhaust fan is fixedly communicated with the other end of the first lateral communication pipe. This colliery operation ventilation unit handles the case through setting up out bellows, first ventilation pipe, second ventilation pipe, dust for this ventilation unit has changed the mode of airing exhaust in original colliery tunnel, and then has guaranteed the quick discharge of dust and gas, has guaranteed the inside safety of mine, through setting up gas collection device, can guarantee that the gas in colliery is utilized, guarantees the rational use of resource.
Description
Technical Field
The invention relates to the technical field of coal mine equipment, in particular to a coal mine operation ventilation device.
Background
Ventilation is a technology which adopts a natural or mechanical method to ensure that wind does not block and can pass through a room or a sealed environment to cause a suitable air environment such as sanitation, safety and the like.
The colliery ventilation unit who uses at present, the tunnel that mainly adopts the colliery is as the ventilation channel, and then make and be ventilating the in-process, can't collect the processing to dust etc., and when using, harmful gas such as gas probably can't effectual discharge, and directly lead to in the outside air when discharging, at the air outlet, if meet the condition of naked light, can cause the condition of explosion, and when ventilating, probably a large amount of dust can gather in the colliery, can't subside the processing to the dust, and then probably inhaled by the operator, cause the influence to people's lung, if the dust is inhaled when the mine outside, can be acted on the fan, can cause the damage of fan for a long time.
The fan is carrying out the in-process of operation, generally adopts the unit to carry out the operation for the life-span of fan shortens, if the unit carries out the operation for a long time and appears damaging, will cause the colliery to ventilate unfavorable like this, and then can cause the mine to ventilate in time inadequately, causes whole mine stop work even, and then causes economic loss.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the ventilation device for coal mine operation, which has the advantages that air can be exhausted and fed through the special air duct, dust can be prevented from being accumulated, dust can be reduced in time, the working time of the fan can be prolonged, the fan can be used for ventilation without stopping, gas can be collected and processed, and the problem in the prior art is solved.
The invention provides the following technical scheme: a ventilation device for coal mine operation comprises a mounting frame, wherein an air outlet box is fixedly mounted on the left side surface of the mounting frame, a main exhaust fan is fixedly mounted inside the air outlet box, a working time calculation device is fixedly mounted on the side surface of the main exhaust fan, a first ventilation pipe is fixedly communicated with the bottom of the main exhaust fan, a first lateral communication pipe is fixedly communicated with the side surface of the first ventilation pipe, an auxiliary exhaust fan is fixedly communicated with the other end of the first lateral communication pipe, a gas concentration detection device is fixedly mounted on the right side surface of an inner cavity of the air outlet box, an air outlet pipe is fixedly communicated with the top of the air outlet box, a gas collection device is fixedly communicated with the other end of the air outlet pipe, the other end of the first ventilation pipe extends to the outer side of the air outlet box and is fixedly communicated with a dust treatment box, and a second ventilation pipe, the inside wall of second vent pipe bonds and has the flexbile plate, the fixed intercommunication in side of second vent pipe has the branch air intake, the inboard right side fixed mounting that is located out bellows of mounting bracket has the air inlet case, the positive fixed mounting of air inlet incasement chamber has main blower, the fixed intercommunication in bottom of main blower has third vent pipe, the fixed intercommunication in side of third vent pipe has second lateral communicating pipe, the fixed intercommunication in the other end of second lateral communicating pipe has vice air-blower, the bottom of third vent pipe extends to the outside of air inlet case and the fixed intercommunication in side has the branch air outlet, the fixed intercommunication in top of air inlet case has the air-supply line, the fixed intercommunication in other end of air-supply line has air purification device.
Preferably, the inboard of mounting bracket is located the right side fixed mounting of air inlet case and has the mount pad, the left surface fixed mounting of mount pad inner chamber has the controller, the inside fixed mounting of mount pad has the pump body, the fixed intercommunication of the input of the pump body has the inlet tube, the fixed intercommunication of the output of the pump body has water pressure automatic control valve, the fixed intercommunication in bottom of water pressure automatic control valve has the outlet pipe, the side fixed mounting of third tuber pipe has the fixing base, the side of fixing base is connected with the outlet pipe, the fixed intercommunication in side of outlet pipe has the sprinkler bead, the fixed intercommunication in side of outlet pipe has the reservation outlet bead.
Preferably, the dust processing box includes the device shell, the inside and the fixed intercommunication that extend to the device shell of top of second vent pipe have the intake pipe, the inside fixed mounting of device shell has the dust liquefaction case, the other end of intake pipe is linked together with the side of dust liquefaction case, the fixed intercommunication in top of dust liquefaction case has the outlet duct, the other end and the first vent pipe of outlet duct are linked together.
Preferably, air purification device includes the purifying box, the right flank fixed mounting of purifying box inner chamber has the electricity generation fan, the inside fixed mounting of purifying box has the purification filter plate, the left flank fixed mounting of purifying box inner chamber has wind speed detection device.
Preferably, the dust liquefaction box is internally and fixedly provided with a wet isolation plate, and the wet isolation plate is a detachable plate.
Compared with the prior art, the invention has the following beneficial effects:
1. this colliery operation ventilation unit handles the case through setting up out bellows, first ventilation pipe, second ventilation pipe, dust for this ventilation unit has changed the mode of airing exhaust in original colliery tunnel, and then has guaranteed the quick discharge of dust and gas, has guaranteed the inside safety of mine, through setting up gas collection device, can guarantee that the gas in colliery is utilized, guarantees the rational use of resource.
2. This colliery operation ventilation unit, through setting up the pump body, water pressure automatic control valve, the cooperation of reserving the flood peak, can carry out the dust fall to the inside dust in colliery and handle, and then guaranteed the inside clear environment in colliery, guarantee workman's safety, through setting up operating time accounting device, vice air exhauster, vice air-blower, can make fan equipment switch the use, and then improve the life of fan, and the condition of damage appears in the fan, still can guarantee that the colliery carries out the work of not shutting down.
3. This colliery operation ventilation unit through the cooperation that sets up intake pipe, outlet duct, dust liquefaction case, can collect the dust in the colliery, and then avoids the dust to act on the air exhauster, and then prevents that the air exhauster from appearing damaging.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present invention;
FIG. 2 is a cross-sectional view of a dust handling bin of the present invention;
fig. 3 is a sectional view of the air cleaning apparatus of the present invention.
In the figure: 1. a mounting frame; 2. a water outlet pipe; 3. a branch air outlet; 4. a third vent pipe; 5. the water pressure automatic control valve; 6. a pump body; 7. a mounting seat; 8. a water inlet pipe; 9. a controller; 10. an air inlet box; 11. an air purification device; 111. a purification box; 112. a power generation fan; 113. a purifying filter plate; 114. a wind speed detection device; 12. an air inlet pipe; 13. a primary blower; 14. a second lateral communicating tube; 15. a secondary blower; 16. an auxiliary exhaust fan; 17. a gas concentration detection device; 18. an air outlet pipe; 19. a gas collecting device; 20. a first lateral communicating tube; 21. a working time calculation device; 22. a main exhaust fan; 23. an air outlet box; 24. a first vent pipe; 25. a dust treatment box; 251. a device housing; 252. an air inlet pipe; 253. a dust liquefaction tank; 254. an air outlet pipe; 26. a second vent pipe; 27. a flexible board; 28. a branch air inlet; 29. reserving a water outlet head; 30. a fixed seat; 31. a sprinkler head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a coal mine operation ventilation device comprises a mounting frame 1, a wind outlet box 23 is fixedly mounted on the left side surface of the mounting frame 1, a main exhaust fan 22 is fixedly mounted inside the wind outlet box 23, a working time calculation device 21 is fixedly mounted on the side surface of the main exhaust fan 22, a first ventilation pipe 24 is fixedly communicated with the bottom of the main exhaust fan 22, a first lateral communicating pipe 20 is fixedly communicated with the side surface of the first ventilation pipe 24, an auxiliary exhaust fan 16 is fixedly communicated with the other end of the first lateral communicating pipe 20, a gas concentration detection device 17 is fixedly mounted on the right side surface of the inner cavity of the wind outlet box 23, a wind outlet pipe 18 is fixedly communicated with the top of the wind outlet box 23, a gas collection device 19 is fixedly communicated with the other end of the wind outlet pipe 18, the gas collection device 19 is arranged to ensure that the gas in a coal mine is utilized and reasonable use of resources, the other end of the first ventilation pipe 24 extends to the outer side, the bottom of the dust processing box 25 is fixedly communicated with a second vent pipe 26, the dust processing box 25 comprises a device shell 251, the top of the second vent pipe 26 extends to the inside of the device shell 251 and is fixedly communicated with an air inlet pipe 252, the inside of the device shell 251 is fixedly provided with a dust liquefaction box 253, the other end of the air inlet pipe 252 is communicated with the side face of the dust liquefaction box 253, the top of the dust liquefaction box 253 is fixedly communicated with an air outlet pipe 254, the other end of the air outlet pipe 254 is communicated with a first vent pipe 24, through the matching of the air inlet pipe 252, the air outlet pipe 254 and the dust liquefaction box 253, dust in a coal mine can be collected, further, the dust is prevented from acting on an exhaust fan, further, the exhaust fan is prevented from being damaged, the inside of the dust liquefaction box 253 is fixedly provided with a wet isolation plate which is a detachable plate, and, the ventilation device changes the original air exhaust mode of a coal mine roadway by arranging an air outlet box 23, a first ventilation pipe 24, a second ventilation pipe 26 and a dust treatment box 25, so that the ventilation device ensures quick exhaust of dust and gas and ensures safety of the interior of a mine, a flexible plate 27 is bonded on the inner side wall of the second ventilation pipe 26, the flexible plate 27 can ensure that the second ventilation pipe 26 is not damaged when dust collides with the second ventilation pipe 26, a branch air inlet 28 is fixedly communicated with the side surface of the second ventilation pipe 26, an air inlet box 10 is fixedly arranged on the right side of the air outlet box 23 on the inner side of the mounting frame 1, a main blower 13 is fixedly arranged on the front surface of the inner cavity of the air inlet box 10, a third ventilation pipe 4 is fixedly communicated with the bottom of the main blower 13, and a second lateral communication pipe 14 is fixedly communicated with the side surface of the third ventilation pipe 4, the other end of the second lateral communicating pipe 14 is fixedly communicated with an auxiliary air blower 15, the fan equipment can be switched to use by setting the working time calculating device 21, the auxiliary exhaust fan 16 and the auxiliary air blower 15, so that the service life of the fan is prolonged, and the coal mine can still be guaranteed to work without stopping when the fan is damaged, the bottom of the third ventilating pipe 4 extends to the outer side of the air inlet box 10, the side surface of the third ventilating pipe is fixedly communicated with the branch air outlet 3, the top of the air inlet box 10 is fixedly communicated with the air inlet pipe 12, the other end of the air inlet pipe 12 is fixedly communicated with the air purifying device 11, the air purifying device 11 comprises a purifying box 111, the right side surface of the inner cavity of the purifying box 111 is fixedly provided with a generating fan 112, the purifying filter plate 113 is fixedly arranged inside the purifying box 111, the left side surface of the inner cavity of the purifying box 111 is fixedly provided with an air, and then the wind speed detection device 114 detects the wind speed, and further detects the performance of the blower, the mounting base 7 is fixedly mounted on the inner side of the mounting frame 1 on the right side of the air inlet box 10, the controller 9 is fixedly mounted on the left side surface of the inner cavity of the mounting base 7, the pump body 6 is fixedly mounted inside the mounting base 7, the input end of the pump body 6 is fixedly communicated with the water inlet pipe 8, the output end of the pump body 6 is fixedly communicated with the water pressure automatic control valve 5, the bottom of the water pressure automatic control valve 5 is fixedly communicated with the water outlet pipe 2, the side surface of the third vent pipe 4 is fixedly mounted with the fixing base 30, the side surface of the fixing base 30 is connected with the water outlet pipe 2, the side surface of the water outlet pipe 2 is fixedly communicated with the water spray head 31, the side surface of the water outlet pipe 2 is fixedly communicated with the reserved water outlet head, thereby ensuring the clean environment in the coal mine and ensuring the safety of workers.
The working principle is that when the air purifier is used, the main exhaust fan 22 works, negative pressure is generated in the first ventilation pipe 24 at the moment, air in a coal mine enters the air inlet pipe 252 through the second ventilation pipe 26, then the air enters the dust liquefaction box 253, dust is filtered, then the air enters the first ventilation pipe 24 through the air outlet pipe 254, when the air passes through the air outlet box 23, the gas concentration detection device 17 detects the gas concentration, after the air enters the air outlet pipe 18, according to the concentration detected by the gas concentration detection device 17, the gas collection device 19 collects gas, meanwhile, the auxiliary air blower 15 works, negative pressure is formed in the air inlet pipe 12, so that the external air is purified through the air purification device 11, at the moment, the power generation fan 112 works to supply power to the air speed detection device 114, the external air enters the coal mine through the third ventilation pipe 4, meanwhile, the pump body 6 works to discharge water through the water outlet pipe 2, and when the reserved water head 29 is connected to a pipeline, the automatic water pressure control valve 5 can automatically control the water outlet quantity according to the water pressure, so that the water outlet effect is ensured.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a colliery operation ventilation unit, includes mounting bracket (1), its characterized in that: the left side face of mounting bracket (1) fixed mounting has out bellows (23), the inside fixed mounting who goes out bellows (23) has main air exhauster (22), the side fixed mounting of main air exhauster (22) has operating time accounting device (21), the fixed intercommunication in bottom of main air exhauster (22) has first ventilation pipe (24), the fixed intercommunication in side of first ventilation pipe (24) has first lateral communicating pipe (20), the fixed intercommunication in other end of first lateral communicating pipe (20) has vice air exhauster (16), the right flank fixed mounting who goes out bellows (23) inner chamber has gas concentration detection device (17), the fixed intercommunication in top that goes out bellows (23) has out tuber pipe (18), the fixed intercommunication of the other end that goes out tuber pipe (18) has gas collection device (19), the other end of first ventilation pipe (24) extends to the outside that goes out bellows (23) and fixed intercommunication has dust processing case (25), the bottom of dust disposal box (25) is fixed and communicated with a second vent pipe (26), the inner side wall of the second vent pipe (26) is bonded with a flexible plate (27), the side surface of the second vent pipe (26) is fixed and communicated with a branch air inlet (28), the inner side of mounting frame (1) is located at the right side of air outlet box (23) and is fixedly provided with an air inlet box (10), the front side of the inner cavity of the air inlet box (10) is fixedly provided with a main blower (13), the bottom of the main blower (13) is fixed and communicated with a third vent pipe (4), the side surface of the third vent pipe (4) is fixed and communicated with a second lateral communicating pipe (14), the other end of the second lateral communicating pipe (14) is fixedly communicated with an auxiliary blower (15), the bottom of the third vent pipe (4) extends to the outer side of the air inlet box (10) and is fixedly communicated with a branch air outlet (, the top of the air inlet box (10) is fixedly communicated with an air inlet pipe (12), and the other end of the air inlet pipe (12) is fixedly communicated with an air purification device (11).
2. A coal mine operation ventilation unit according to claim 1, wherein: the utility model discloses a water pump, including mounting bracket (1), mount pad (7), pump body (6), inlet pipe (8), water pressure automatic control valve (5) are connected to the fixed intercommunication in output of the pump body (6), the fixed intercommunication in bottom of water pressure automatic control valve (5) has outlet pipe (2), the fixed intercommunication in side of third tuber pipe (4) has fixing base (30), the side of fixing base (30) is connected with outlet pipe (2), the fixed intercommunication in side of outlet pipe (2) has sprinkler bead (31), the fixed intercommunication in side of outlet pipe (2) has reservation outlet head (29), the left side fixed mounting that the inboard of mount bracket (1) is located air inlet box (10) has mount pad (7), the left surface fixed mounting of mount pad (7) inner chamber has controller (9), the inside fixed mounting of mount pad (7) has pump body (6), the fixed intercommunication in input of pump.
3. A coal mine operation ventilation unit according to claim 1, wherein: the dust treatment box (25) comprises a device shell (251), the top of the second ventilation pipe (26) extends to the inside of the device shell (251) and is fixedly communicated with an air inlet pipe (252), a dust liquefaction box (253) is fixedly installed inside the device shell (251), the other end of the air inlet pipe (252) is communicated with the side face of the dust liquefaction box (253), an air outlet pipe (254) is fixedly communicated with the top of the dust liquefaction box (253), and the other end of the air outlet pipe (254) is communicated with the first ventilation pipe (24).
4. A coal mine operation ventilation unit according to claim 1, wherein: air purification device (11) are including purifying box (111), the right side fixed mounting of purifying box (111) inner chamber has power generation fan (112), the inside fixed mounting of purifying box (111) has purification filter plate (113), the left surface fixed mounting of purifying box (111) inner chamber has wind speed detection device (114).
5. A coal mine operation ventilation unit according to claim 3, wherein: the inside fixed mounting of dust liquefaction case (253) has moist division board, and moist division board is for dismantling the board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010117368.1A CN111441814B (en) | 2020-02-25 | 2020-02-25 | Coal mine operation ventilation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010117368.1A CN111441814B (en) | 2020-02-25 | 2020-02-25 | Coal mine operation ventilation unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111441814A true CN111441814A (en) | 2020-07-24 |
| CN111441814B CN111441814B (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010117368.1A Active CN111441814B (en) | 2020-02-25 | 2020-02-25 | Coal mine operation ventilation unit |
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| Country | Link |
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| CN (1) | CN111441814B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206158778U (en) * | 2016-11-12 | 2017-05-10 | 山东科技大学 | Multidirectional local dust removal ventilation system of flexible |
| CN207702611U (en) * | 2017-12-25 | 2018-08-07 | 孙树荣 | A kind of environmental protection air air purifying apparatus for chemical plant |
| CN208487712U (en) * | 2018-05-09 | 2019-02-12 | 中冷高科（北京）环境技术有限公司 | A kind of refrigeration system capable of purifying air |
| CN208578580U (en) * | 2018-05-06 | 2019-03-05 | 骆少锋 | A kind of high efficiency coal mine ventilation device |
| CN208619153U (en) * | 2019-01-15 | 2019-03-19 | 祁晓波 | A kind of underground coal mine ventilating dust-arrester |
| CN209115143U (en) * | 2018-12-14 | 2019-07-16 | 贵州安和矿业科技工程股份有限公司 | A kind of underground coal mine local ventilation device |
| CN209369857U (en) * | 2018-11-09 | 2019-09-10 | 李艳艳 | A kind of coal mine digging underground ventilating device |
| CN210105905U (en) * | 2019-04-16 | 2020-02-21 | 山西能源学院 | Coal mine safety ventilation dust collector |
-
2020
- 2020-02-25 CN CN202010117368.1A patent/CN111441814B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206158778U (en) * | 2016-11-12 | 2017-05-10 | 山东科技大学 | Multidirectional local dust removal ventilation system of flexible |
| CN207702611U (en) * | 2017-12-25 | 2018-08-07 | 孙树荣 | A kind of environmental protection air air purifying apparatus for chemical plant |
| CN208578580U (en) * | 2018-05-06 | 2019-03-05 | 骆少锋 | A kind of high efficiency coal mine ventilation device |
| CN208487712U (en) * | 2018-05-09 | 2019-02-12 | 中冷高科（北京）环境技术有限公司 | A kind of refrigeration system capable of purifying air |
| CN209369857U (en) * | 2018-11-09 | 2019-09-10 | 李艳艳 | A kind of coal mine digging underground ventilating device |
| CN209115143U (en) * | 2018-12-14 | 2019-07-16 | 贵州安和矿业科技工程股份有限公司 | A kind of underground coal mine local ventilation device |
| CN208619153U (en) * | 2019-01-15 | 2019-03-19 | 祁晓波 | A kind of underground coal mine ventilating dust-arrester |
| CN210105905U (en) * | 2019-04-16 | 2020-02-21 | 山西能源学院 | Coal mine safety ventilation dust collector |
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| Publication number | Publication date |
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| CN111441814B (en) | 2022-02-11 |
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