CN219840681U - Safe explosion-proof device for ventilation of coal mine - Google Patents
Safe explosion-proof device for ventilation of coal mine Download PDFInfo
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- CN219840681U CN219840681U CN202320797377.9U CN202320797377U CN219840681U CN 219840681 U CN219840681 U CN 219840681U CN 202320797377 U CN202320797377 U CN 202320797377U CN 219840681 U CN219840681 U CN 219840681U
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- ventilation
- fixedly connected
- negative pressure
- coal mine
- windshield
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- 238000009423 ventilation Methods 0.000 title claims abstract description 21
- 239000003245 coal Substances 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 12
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 12
- 241001330002 Bambuseae Species 0.000 claims description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 12
- 239000011425 bamboo Substances 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims 1
- 239000002360 explosive Substances 0.000 abstract description 22
- 238000001914 filtration Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 11
- 239000007789 gas Substances 0.000 description 22
- 239000002245 particle Substances 0.000 description 9
- 238000004880 explosion Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model belongs to the technical field of coal mine ventilation equipment, and particularly relates to a safe explosion-proof device for coal mine ventilation, which comprises an air exhaust barrel and a negative pressure fan fixedly connected to the inner side of the air exhaust barrel, wherein a plurality of supports distributed in an array are arranged on the outer wall of the air exhaust barrel, limiting rods are connected to guide holes of the supports in a sliding manner, hemispherical wind shields are arranged on support plates at the end parts of the limiting rods, the hemispherical wind shields are correspondingly arranged on air outlet parts of the air exhaust barrel, and a filtering mechanism is fixedly connected to one side, far away from the hemispherical wind shields, of the air exhaust barrel. According to the utility model, the telescopic hemispherical windshield is arranged on one side of the exhaust cylinder, so that the explosive gas on the working layer can be prevented from contacting with the motor of the negative pressure fan when the device does not work, the impact effect of explosive gas flow can be avoided, the filtering mechanism is arranged on the other side of the exhaust cylinder, harmful gas is prevented from approaching the negative pressure fan, and the problem of poor safety and explosion-proof performance of the device in the prior art is solved.
Description
Technical Field
The utility model relates to the technical field of coal mine ventilation equipment, in particular to a safe explosion-proof device for coal mine ventilation.
Background
In the excavation process to the colliery, ventilation is an important process, because colliery is at the in-process of exploitation, the air does not circulate and can produce harmful gas, can lead to the fact the influence to the health of exploitation personnel, ventilation's effect is that fresh air is provided for the mine, guarantee the normal breathing of underground staff, because the ventilation environment in the tunnel in the pit is poor, in addition, the explosive toxic gas that work level escaped is more, make tunnel intussuseption be full of explosive gas such as methane, and ventilation equipment passes through motor drive, the motor long-time operating temperature is higher, the gas in cooperation mine is very easy to produce the explosion accident, consequently, the explosion-proof security requirement to the ventilation fan in the pit is higher.
Firstly, the protection mechanism of the negative pressure fan is lacking in the coal mine ventilation equipment at the present stage, when the negative pressure fan does not work, explosive gas overflowed from the working layer surface enters the vicinity of the negative pressure fan, safety accidents are easy to generate due to the fact that the temperature of a motor of the negative pressure fan is high, particularly when the motor of the negative pressure fan is impacted by relative explosive gas flow, the explosive gas flow on the working layer surface instantaneously impacts the air exhaust barrel to form great hidden danger for the motor and an upper layer area, and secondly, the air exhaust barrel is lack of the filtering mechanism of the explosive gas, so that the explosive gas is directly contacted with the motor of the negative pressure fan, the potential safety hazard is increased, and the defects exist, so that improvement is needed.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides the safe explosion-proof device for coal mine ventilation, which is characterized in that a telescopic hemispherical windshield is arranged on one side of an exhaust cylinder, so that the exhaust effect of a negative pressure fan is not influenced during operation, the contact between explosive gas on the working layer and a motor of the negative pressure fan can be avoided during non-operation, the impact effect of explosive gas flow can be avoided, a filtering mechanism is arranged on the other side of the exhaust cylinder, harmful gas is prevented from approaching the negative pressure fan, and the problem of poor safe explosion-proof performance of equipment in the current stage is solved.
(II) technical scheme
The utility model adopts the following technical scheme for realizing the purposes:
the utility model provides a colliery is ventilated with safe explosion-proof equipment, includes the exhaust section of thick bamboo to and fixed connection is at the inboard negative pressure fan of exhaust section of thick bamboo, be provided with a plurality of supports of array distribution on the outer wall of exhaust section of thick bamboo, equal sliding connection has the gag lever post on the guiding hole of support, is provided with the hemisphere windshield on the extension board of gag lever post tip, and the hemisphere windshield corresponds the air-out portion that sets up at the exhaust section of thick bamboo to one side fixedly connected with filter equipment of the hemisphere windshield is kept away from to the exhaust section of thick bamboo, filter equipment includes the cartridge filter of fixed connection on the exhaust section of thick bamboo to and the cooperation sets up at the inboard locating frame of cartridge filter, and the inboard of locating frame is provided with particle layer filter core structure.
Further, the limit rod is kept away from the one end fixedly connected with helmet of extension board to be provided with reset spring between helmet and the support.
Further, the filter cartridge is fixedly connected to the air exhaust barrel through bolts arranged at the bottom of the inner side.
Further, one side fixedly connected with semi-annular guard plate of locating frame, semi-annular guard plate adaptation is on the semi-annular cavity that the cartridge filter corresponds setups.
Further, a handle is fixedly connected to one side of the semi-annular protection plate.
(III) beneficial effects
Compared with the prior art, the utility model provides a safe explosion-proof device for ventilation of a coal mine, which has the following beneficial effects:
1. according to the utility model, the support is arranged on the outer wall of the exhaust cylinder, the limit rod is connected on the support in a sliding manner, the hemispherical windshield is arranged on the support plate at the tail end of the limit rod, when the negative pressure fan works, the negative pressure fan blows the hemispherical windshield to move, so that the hemispherical windshield moves to the outer side of the exhaust cylinder without influencing the exhaust effect of the device, when the negative pressure fan does not work, the hemispherical windshield moves under the action of the return spring, so that the hemispherical windshield is closed at the end part of the exhaust cylinder, the explosive gas at the working level can be prevented from approaching the motor of the negative pressure fan, and then safety accidents are avoided, meanwhile, the mode can also avoid the impact effect of the explosive gas at the working level, when the explosive gas at the working level is generated, the hemispherical windshield can be closed on the exhaust cylinder, so that the gas cannot pass through the exhaust cylinder, the safety of a motor of the exhaust fan and a roadway is ensured, and the subsequent explosive accidents are avoided, and the use effect is ideal.
2. According to the utility model, the filtering mechanism is arranged on the other side of the exhaust cylinder, the detachable particle layer filter core structure is arranged in the filtering mechanism, and the active carbon adsorption layer is arranged in the particle layer filter core structure, so that inflammable and explosive gas can be absorbed and purified, the inflammable and explosive gas is prevented from approaching to the motor of the negative pressure fan, the safety of ventilation equipment is ensured, and explosion accidents are avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic structural view of a filtering mechanism in the present utility model.
In the figure: 1. an exhaust duct; 2. a negative pressure fan; 3. a hemispherical windshield; 4. a support plate; 5. a limit rod; 6. a support; 7. a return spring; 8. a protective cap; 9. a filtering mechanism; 901. a filter cartridge; 902. a semi-annular cavity; 903. semi-annular protection plates; 904. a handle; 905. a positioning frame; 906. a particle layer filter element structure; 907. and (5) a bolt.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
As shown in fig. 1 and fig. 2, the safety explosion-proof device for ventilation of coal mine provided by one embodiment of the utility model comprises an air exhaust barrel 1 and a negative pressure fan 2 fixedly connected to the inner side of the air exhaust barrel 1, wherein a plurality of supports 6 distributed in an array are arranged on the outer wall of the air exhaust barrel 1, guide holes of the supports 6 are respectively and slidably connected with a limit rod 5, a hemispherical windshield 3 is arranged on a support plate 4 at the end part of the limit rod 5, the hemispherical windshield 3 is correspondingly arranged at an air outlet part of the air exhaust barrel 1, a filtering mechanism 9 is fixedly connected to one side, away from the hemispherical windshield 3, of the air exhaust barrel 1, the filtering mechanism 9 comprises a filter barrel 901 fixedly connected to the air exhaust barrel 1, a positioning frame 905 matched with the inner side of the filter barrel 901, and a particle layer filter core structure 906 is arranged on the inner side of the positioning frame 905.
It should be noted that: through in the inboard installation negative pressure fan 2 at exhaust cylinder 1, can be with the fresh air of external leading-in work level in, guarantee the fresh of mine interior air, through set up a plurality of supports 6 on the outer wall of exhaust cylinder 1, support 6 is used for the flexible spacing of gag lever post 5, through set up hemisphere windshield 3 on the extension board 4 of gag lever post 5 tip, hemisphere windshield 3 is hemispherical design, and spherical face is towards exhaust cylinder 1, when negative pressure fan 2 during operation, with external wind leading-in mine, hemisphere windshield 3 can remove this moment, avoid hemisphere windshield 3 to influence the air guide effect of negative pressure fan 2, the air current can enter into the mine smoothly, through installing filter mechanism 9 in one side of exhaust cylinder 1 principle hemisphere windshield 3, filter mechanism 9 can realize the filtering action of harmful gas in the tunnel, avoid explosive gas to enter into the vicinity of negative pressure fan 2, filter mechanism 9 carries out the filtration of air through the particle layer filter core structure 906 on the inboard locating frame 905, be provided with active carbon adsorption layer in the particle layer filter core structure 906, can adsorb gas etc. and then guarantee the safe handling of negative pressure fan 2, the safety in use of the explosion equipment.
As shown in fig. 1, in some embodiments, a protective cap 8 is fixedly connected to an end of the stop lever 5 away from the support plate 4, and a return spring 7 is disposed between the protective cap 8 and the support 6.
It should be noted that: through setting up reset spring 7 between support 6 and helmet 8, reset spring 7's setting can realize the automatic re-setting of gag lever post 5, hemisphere windshield 3, and when negative pressure fan 2 does not work, or when the working level produced the explosion air current, hemisphere windshield 3 can be closed the tip to exhaust cylinder 1 in the twinkling of an eye, avoids harmful gas in the working level to enter into exhaust cylinder 1, then produces the explosion near the motor of negative pressure fan 2.
As shown in fig. 2, in some embodiments, the filter cartridge 901 is fixedly attached to the exhaust cartridge 1 by bolts 907 provided at the bottom of the inside.
It should be noted that: the cartridge filter 901 passes through bolt 907 fixed connection on exhaust cylinder 1, and the steadiness is good, the equipment of convenient filtering mechanism 9.
As shown in fig. 2, in some embodiments, a semi-annular protection plate 903 is fixedly connected to one side of the positioning frame 905, and the semi-annular protection plate 903 is adapted to a semi-annular cavity 902 formed in the filter cartridge 901 correspondingly.
It should be noted that: through setting up semi-annular guard plate 903 in one side of locating frame 905, the installation effect of locating frame 905 in cartridge filter 901 is made things convenient for in the setting of semi-annular guard plate 903, only needs to adapt semi-annular guard plate 903 in semi-annular cavity 902 departments, can realize the installation of locating frame 905, particle layer filter core structure 906, and the convenience is good.
As shown in fig. 2, in some embodiments, a handle 904 is fixedly attached to one side of the semi-annular shield 903.
It should be noted that: the handle 904 is provided to facilitate the taking and placing operation of the semi-annular shield 903.
The working principle and the application steps of the utility model are as follows: when the air exhausting device is used, the negative pressure fan 2 works, external air flows enter the air exhausting cylinder 1 through the filtering mechanism 9, the particle layer filter core structure 906 is arranged in the filtering mechanism 9, the filtering effect of the air can be achieved, explosive air is prevented from entering the inner side of the air exhausting cylinder 1, and then is contacted with a motor on the negative pressure fan 2, the hemispherical windshield 3 is directly blown away from the air exhausting cylinder 1 by air exhausted by the negative pressure fan 2, the elasticity of the reset spring 7 is small, the hemispherical windshield 3 is not affected, when the negative pressure fan 2 does not work, the hemispherical windshield 3 and the limiting rod 5 are reset under the action of the reset spring 7, the hemispherical windshield 3 is closed to the end part of the air exhausting cylinder 1, explosive air such as gas on a working layer is prevented from entering the inner side of the air exhausting cylinder 1, and then is contacted with a motor in the negative pressure fan 2, explosion is prevented from being generated by combining the motor in a high temperature state, meanwhile, the explosive air can impact the hemispherical windshield 3 when the explosive air is generated on the working layer, and the hemispherical windshield 3 can be also closed to the end part of the air exhausting cylinder 1, and further a protection effect is formed.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. The utility model provides a colliery is safe explosion-proof equipment for ventilation, includes exhaust section of thick bamboo (1) to and fixed connection is at negative pressure fan (2) of exhaust section of thick bamboo (1) inboard, its characterized in that: be provided with a plurality of supports (6) of array distribution on the outer wall of exhaust section of thick bamboo (1), equal sliding connection has gag lever post (5) on the guiding hole of support (6), is provided with hemisphere windshield (3) on extension board (4) of gag lever post (5) tip, and hemisphere windshield (3) correspond the air-out portion that sets up in exhaust section of thick bamboo (1) to one side fixedly connected with filter mechanism (9) of hemisphere windshield (3) are kept away from in exhaust section of thick bamboo (1), filter mechanism (9) include cartridge filter (901) of fixed connection on exhaust section of thick bamboo (1) to and the cooperation sets up locating frame (905) inboard at cartridge filter (901), and the inboard of locating frame (905) is provided with granule layer filter core structure (906).
2. The safety explosion-proof device for ventilation of coal mine according to claim 1, wherein: one end of the limiting rod (5) far away from the support plate (4) is fixedly connected with a protective cap (8), and a reset spring (7) is arranged between the protective cap (8) and the support (6).
3. The safety explosion-proof device for ventilation of coal mine according to claim 1, wherein: the filter cartridge (901) is fixedly connected to the exhaust cylinder (1) through a bolt (907) arranged at the bottom of the inner side.
4. The safety explosion-proof device for ventilation of coal mine according to claim 1, wherein: one side of the positioning frame (905) is fixedly connected with a semi-annular protection plate (903), and the semi-annular protection plate (903) is adapted to a semi-annular cavity (902) correspondingly formed in the filter cartridge (901).
5. The safety explosion-proof device for ventilation of coal mine as claimed in claim 4, wherein: one side of the semi-annular protection plate (903) is fixedly connected with a handle (904).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320797377.9U CN219840681U (en) | 2023-04-10 | 2023-04-10 | Safe explosion-proof device for ventilation of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320797377.9U CN219840681U (en) | 2023-04-10 | 2023-04-10 | Safe explosion-proof device for ventilation of coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219840681U true CN219840681U (en) | 2023-10-17 |
Family
ID=88301629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320797377.9U Active CN219840681U (en) | 2023-04-10 | 2023-04-10 | Safe explosion-proof device for ventilation of coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219840681U (en) |
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2023
- 2023-04-10 CN CN202320797377.9U patent/CN219840681U/en active Active
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