CN108798756A - A kind of underground coal mine device with dehumidification function - Google Patents
A kind of underground coal mine device with dehumidification function Download PDFInfo
- Publication number
- CN108798756A CN108798756A CN201810616438.0A CN201810616438A CN108798756A CN 108798756 A CN108798756 A CN 108798756A CN 201810616438 A CN201810616438 A CN 201810616438A CN 108798756 A CN108798756 A CN 108798756A
- Authority
- CN
- China
- Prior art keywords
- chamber
- gas
- door body
- coal mine
- guide tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 24
- 238000007791 dehumidification Methods 0.000 title claims abstract description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 9
- 239000002341 toxic gas Substances 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 4
- 239000002817 coal dust Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F3/00—Cooling or drying of air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mining & Mineral Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Ventilation (AREA)
- Drying Of Gases (AREA)
Abstract
The invention discloses a kind of underground coal mine air interchangers with dehumidification function, including first chamber, receiving room, second chamber, air duct, negative-pressure air fan, gauze, toxic gas filter layer, babinet, gas flowmeter, buffer layer, universal wheel, pedestal, temperature sensor, heater box, first gas-guide tube, heat block, insulating layer, third chamber, second gas-guide tube, air pump, containing cavities, first door body, second handle, observation window, second door body, third door body, escape pipe, gas-detecting device, third handle, pressure gauge, control panel and the first in command, the top of the pedestal is equipped with babinet, and the top of box house is provided with first chamber.The underground coal mine air interchanger with dehumidification function is by being provided with first chamber, and the inner homogeneous of first chamber is provided with containing cavities, the inside of containing cavities is all evenly arranged with receiving room simultaneously, increases the function of containing articles of the present apparatus, convenient for putting various security against fire articles for use.
Description
Technical field
The present invention relates to coal mine machinery equipment technical field, specially a kind of underground coal mine ventilation dress with dehumidification function
It sets.
Background technology
With the continuous development of society, the coal industry field in China develops very fast, various novel colliery downhole equipments
It comes into being, wherein in process of coal mining, needs the dust concentration and gas density that strictly control underground, once concentration mistake
Greatly, huge safety accident can be caused by explosion occurring, it is therefore desirable to which a kind of underground coal mine air interchanger is used for the air to underground
It is filtered, ensures that the concentration of each ingredient in air is within safe range.
But existing underground coal mine air interchanger is there are many problems or defect, and first, the ventilation of traditional underground coal mine
Device is not easy to clear up the dust generated in purification process, and second, traditional underground coal mine air interchanger, which does not have, to be received
It receives function, is unfavorable for putting various firefighting security devices, third, traditional underground coal mine air interchanger does not have dehumidification function,
Functionality cannot be satisfied the needs of user.
Novel underground coal mine air interchanger can be detected purified air, so that it is met standard air, together
When have good dehumidification function, will purified air drying after be then exhausted from.
Invention content
The purpose of the present invention is to provide a kind of underground coal mine air interchangers with dehumidification function, to solve above-mentioned background
The problem of existing apparatus does not have wet function is proposed in technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of underground coal mine ventilation with dehumidification function
Device, including first chamber, receiving room, second chamber, air duct, negative-pressure air fan, gauze, toxic gas filter layer, babinet, gas
Flowmeter, buffer layer, universal wheel, pedestal, temperature sensor, heater box, the first gas-guide tube, heat block, insulating layer, third chamber
Room, the second gas-guide tube, air pump, containing cavities, the first door body, second handle, observation window, the second door body, third door body, escape pipe,
The top of gas-detecting device, third handle, pressure gauge, control panel and the first in command, the pedestal are equipped with babinet, and case
The top in internal portion is provided with first chamber, and the side of the box house bottom end is provided with second chamber, and second chamber
Side is equipped with air duct, and the other side of the box house bottom end is provided with third chamber, and the one of third chamber interior bottom end
Side is provided with heater box, and the both sides inside the heater box are mounted on heat block, and the bottom end inside the heater box is provided with
The top of temperature sensor, the heater box side is equipped with pressure gauge, and the bottom end of the heater box side is equipped with escape pipe,
And gas-detecting device is installed on escape pipe, one end of the third chamber is equipped with third door body, and third door body one end
Top control panel is installed, the side of third door body one end is equipped with third handle, the output of the control panel
End is electrically connected by the input terminal of conducting wire and heat block, and the output end of the temperature sensor passes through conducting wire and control panel
Input terminal is electrically connected.
Preferably, four corners of the base bottom are mounted on universal wheel, and brake is mounted on universal wheel
Piece, the pedestal are internally provided with buffer layer.
Preferably, the inner homogeneous of the first chamber is provided with containing cavities, and the inside of containing cavities is all evenly arranged with
One end of receiving room, the containing cavities is mounted on the first door body, and the side of first door body one end is mounted on the first in command,
The surface of the first in command is enclosed with Anti-slip cover.
Preferably, the inside of the air duct is equipped with negative-pressure air fan, and HEPA strainers are provided on negative-pressure air fan.
Preferably, the second chamber is internally provided with gauze, and the second chamber below gauze is internally provided with
Toxic gas filter layer, the bottom end inside the second chamber are equipped with gas flowmeter, one end installation of the second chamber
There is the second door body, and the side of second door body one end is equipped with second handle, one end of the second chamber is equipped with observation window.
Preferably, insulating layer is provided on the madial wall of the heater box, the top of the heater box is equipped with air pump, and
The side of air pump is equipped with the first gas-guide tube, and the one end of first gas-guide tube far from air pump is connected with the bottom end of babinet side
Logical, the other side of the air pump is equipped with the second gas-guide tube, and the top of the second gas-guide tube one end and heater box far from air pump
It is connected, the surface of first gas-guide tube and the second gas-guide tube is both provided with etch resistant layer.
Compared with prior art, the beneficial effects of the invention are as follows：The underground coal mine air interchanger with dehumidification function is logical
It crosses and is provided with gauze and toxic gas filter layer, the air of sucking is filtered, remove internal dust and harmful substance, lead to
It crosses and gas flowmeter is installed, the flow velocity of air can be detected, by being equipped with the second door body, and the one of the second door body
End is equipped with observation window, convenient for the dust accumulated in observation second chamber, while convenient for clearing up dust, by being equipped with
Heater box, and the both sides inside heater box are mounted on heat block, can to treated, air is dried, play dehumidifying
Effect, by being provided with first chamber, and the inner homogeneous of first chamber is provided with containing cavities, while the inside of containing cavities is all equal
It is even to be provided with receiving room, increase the function of containing articles of the present apparatus, convenient for putting various security against fire articles for use.
Description of the drawings
Fig. 1 faces diagrammatic cross-section for the present invention's；
Fig. 2 is the schematic elevation view of the present invention.
In figure：1, first chamber；2, receiving room；3, second chamber；4, air duct；5, negative-pressure air fan；6, gauze；7, there is poison gas
Body filter layer；8, babinet；9, gas flowmeter；10, buffer layer；11, universal wheel；12, pedestal；13, temperature sensor；14, add
Hot tank；15, the first gas-guide tube；16, heat block；17, insulating layer；18, third chamber；19, the second gas-guide tube；20, air pump；21,
Containing cavities；22, the first door body；23, second handle；24, observation window；25, the second door body；26, third door body；27, escape pipe；
28, gas-detecting device；29, third handle；30, pressure gauge；31, control panel；32, the first in command.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It please refers to Fig.1 and Fig. 2, a kind of embodiment provided by the invention：A kind of underground coal mine ventilation with dehumidification function
Device, including first chamber 1, receiving room 2, second chamber 3, air duct 4, negative-pressure air fan 5, gauze 6, toxic gas filter layer 7, case
Body 8, gas flowmeter 9, buffer layer 10, universal wheel 11, pedestal 12, temperature sensor 13, heater box 14, the first gas-guide tube 15,
Heat block 16, insulating layer 17, third chamber 18, the second gas-guide tube 19, air pump 20, containing cavities 21, the first door body 22, second handle
23, observation window 24, the second door body 25, third door body 26, escape pipe 27, gas-detecting device 28, third handle 29, pressure gauge
30, the top of control panel 31 and the first in command 32, pedestal 12 are equipped with babinet 8, and the top inside babinet 8 is provided with first
The inner homogeneous of chamber 1, first chamber 1 is provided with containing cavities 21, and the inside of containing cavities 21 is all evenly arranged with receiving room 2,
One end of containing cavities 21 is mounted on the first door body 22, and the side of 22 one end of the first door body is mounted on the first in command 32, the
The surface of leader 32 is enclosed with Anti-slip cover, increases the frictional force on surface, convenient for lifting, four corners of 12 bottom end of pedestal
It is mounted on universal wheel 11, and brake block is mounted on universal wheel 11, increases the stopping power of the present apparatus, the inside of pedestal 12
It is provided with buffer layer 10, increases the shock resistance of the present apparatus, the side of 8 inner bottom of babinet is provided with second chamber 3, and the second chamber
The side of room 3 is equipped with air duct 4, and second chamber 3 is internally provided with gauze 6, and the inside of the second chamber 3 of 6 lower section of gauze
It is provided with toxic gas filter layer 7, the bottom end inside second chamber 3 is equipped with gas flowmeter 9, one end peace of second chamber 3
Side equipped with the second door body 25, and 25 one end of the second door body is equipped with second handle 23, and one end of second chamber 3 is equipped with sight
Window 24 is examined, convenient for the accumulation of the internal coal dust of observation, negative-pressure air fan 5 is installed convenient for cleaning, the inside of air duct 4 in time, and
It is provided with HEPA strainers on negative-pressure air fan 5, coal dust accumulation is avoided to block air duct 4, the other side of 8 inner bottom of babinet is provided with the
Three chambers 18, and the side of 18 inner bottom of third chamber is provided with heater box 14, and guarantor is provided on the madial wall of heater box 14
The top of warm layer 17, heater box 14 is equipped with air pump 20, and the model of air pump 20 can be EHS-529, and the side of air pump 20 is installed
There is the first gas-guide tube 15, the one end of the first gas-guide tube 15 far from air pump 20 to be connected with the bottom end of 8 side of babinet, air pump 20 it is another
Side is equipped with the second gas-guide tube 19, and the one end of the second gas-guide tube 19 far from air pump 20 is connected with the top of heater box 14,
The surface of first gas-guide tube 15 and the second gas-guide tube 19 is both provided with etch resistant layer, increases resistance to corrosion, prolongs the service life,
Both sides inside heater box 14 are mounted on heat block 16, and the bottom end inside heater box 14 is provided with temperature sensor 13, temperature
The model of sensor 13 can be CWDZ11, and the top of 14 side of heater box is equipped with pressure gauge 30, the bottom end of 14 side of heater box
Escape pipe 27 is installed, and gas-detecting device 28 is installed on escape pipe 27, one end of third chamber 18 is equipped with third door
Body 26, and control panel 31 is installed at the top of 26 one end of third door body, the side of 26 one end of third door body is equipped with third handle
The output end of hand 29, control panel 31 is electrically connected by the input terminal of conducting wire and heat block 16, the output of temperature sensor 13
End is electrically connected by the input terminal of conducting wire and control panel 31.
Operation principle：In use, opening the brake block on universal wheel 11, the present apparatus is moved to behind working region to close and is stopped
Vehicle piece starts negative-pressure air fan 5, the air of underground is drawn into second chamber 3, by gauze 6 and toxic gas filter layer 7 into
Row multistage filtering removes dust and noxious material in air, while being provided with HEPA strainers on negative-pressure air fan 5, first rises
To the effect tentatively filtered, second avoids coal dust from accumulating and block air duct 4, after air purification, air is pumped by booster air pump 20
Drying dehumidification is carried out in heater box 14, then is discharged by escape pipe 27, while the gas-detecting device 28 on escape pipe 27 is to air
Quality is detected, and security against fire articles for use can be placed in receiving room 2 by staff, convenient for taking.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of underground coal mine air interchanger with dehumidification function, including first chamber (1), second chamber (3), babinet (8),
Pedestal (12) and air pump (20), it is characterised in that：The top of the pedestal (12) is equipped with babinet (8), and babinet (8) is internal
Top is provided with first chamber (1), and the side of babinet (8) inner bottom is provided with second chamber (3), and second chamber
(3) side is equipped with air duct (4), and the other side of babinet (8) inner bottom is provided with third chamber (18), and third chamber
The side of room (18) inner bottom is provided with heater box (14), and the internal both sides of the heater box (14) are mounted on heat block
(16), the internal bottom end of the heater box (14) is provided with temperature sensor (13), the top peace of heater box (14) side
Equipped with pressure gauge (30), the bottom end of heater box (14) side is equipped with escape pipe (27), and is equipped on escape pipe (27)
One end of gas-detecting device (28), the third chamber (18) is equipped with third door body (26), and third door body (26) one end
Top control panel (31) is installed, the side of described third door body (26) one end is equipped with third handle (29), the control
The output end of panel (31) processed is electrically connected by the input terminal of conducting wire and heat block (16), the temperature sensor (13) it is defeated
Outlet is electrically connected by the input terminal of conducting wire and control panel (31).
2. a kind of underground coal mine air interchanger with dehumidification function according to claim 1, it is characterised in that：The base
Four corners of seat (12) bottom end are mounted on universal wheel (11), and brake block, the base are mounted on universal wheel (11)
Seat (12) is internally provided with buffer layer (10).
3. a kind of underground coal mine air interchanger with dehumidification function according to claim 1, it is characterised in that：Described
The inner homogeneous of one chamber (1) is provided with containing cavities (21), and the inside of containing cavities (21) is all evenly arranged with receiving room (2),
One end of the containing cavities (21) is mounted on the first door body (22), and the side of the first door body (22) one end is mounted on first
The surface of handle (32), the first in command (32) is enclosed with Anti-slip cover.
4. a kind of underground coal mine air interchanger with dehumidification function according to claim 1, it is characterised in that：The wind
The inside of cylinder (4) is equipped with negative-pressure air fan (5), and is provided with HEPA strainers on negative-pressure air fan (5).
5. a kind of underground coal mine air interchanger with dehumidification function according to claim 1, it is characterised in that：Described
Two chambers (3) are internally provided with gauze (6), and the second chamber (3) below gauze (6) is internally provided with toxic gas mistake
Filtering layer (7), the internal bottom end of the second chamber (3) are equipped with gas flowmeter (9), one end peace of the second chamber (3)
Side equipped with the second door body (25), and the second door body (25) one end is equipped with second handle (23), the second chamber (3)
One end is equipped with observation window (24).
6. a kind of underground coal mine air interchanger with dehumidification function according to claim 1, it is characterised in that：It is described to add
Insulating layer (17) is provided on the madial wall of hot tank (14), the top of the heater box (14) is equipped with air pump (20), and air pump
(20) side is equipped with the first gas-guide tube (15), the one end of first gas-guide tube (15) far from air pump (20) and babinet (8)
The bottom end of side is connected, and the other side of the air pump (20) is equipped with the second gas-guide tube (19), and the second gas-guide tube (19) is remote
One end from air pump (20) is connected with the top of heater box (14), first gas-guide tube (15) and the second gas-guide tube (19)
Surface is both provided with etch resistant layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810616438.0A CN108798756A (en) | 2018-06-14 | 2018-06-14 | A kind of underground coal mine device with dehumidification function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810616438.0A CN108798756A (en) | 2018-06-14 | 2018-06-14 | A kind of underground coal mine device with dehumidification function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108798756A true CN108798756A (en) | 2018-11-13 |
Family
ID=64086268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810616438.0A Pending CN108798756A (en) | 2018-06-14 | 2018-06-14 | A kind of underground coal mine device with dehumidification function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108798756A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578061A (en) * | 2018-12-05 | 2019-04-05 | 贵州大学 | A kind of anti-collapse protection storehouse of underground coal mine exploitation |
| CN110799000A (en) * | 2019-11-01 | 2020-02-14 | 陕西正通煤业有限责任公司 | Comprehensive operation box for underground belt conveyor of coal mine |
| CN112370916A (en) * | 2020-10-29 | 2021-02-19 | 杨彬只 | Waste gas treatment device and method with good filtering effect |
| CN112973393A (en) * | 2021-03-01 | 2021-06-18 | 河北帮益机械科技有限公司 | Be applied to chemical production's gaseous dehumidifier |
| CN114893252A (en) * | 2022-07-14 | 2022-08-12 | 徐州华兴信息科技有限公司 | Safety monitoring device for mine management that possesses dampproofing function |
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| KR20140100806A (en) * | 2013-02-07 | 2014-08-18 | 아주대학교산학협력단 | Air cleaner apparatus for construction like tunnel |
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| CN206037292U (en) * | 2016-08-08 | 2017-03-22 | 东莞市金鸿盛电器有限公司 | High -efficient dehumidifier |
| CN206449738U (en) * | 2016-12-27 | 2017-08-29 | 江苏惠生堂食品股份有限公司 | A kind of dehumidifier |
| CN207196713U (en) * | 2017-08-23 | 2018-04-06 | 博美恒科技（天津）有限公司 | A kind of household small-size multiple-stage air clarifier |
| CN107917475A (en) * | 2017-12-21 | 2018-04-17 | 绍兴上虞贝尔电子有限公司 | Air purifier with dehumidification function |
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| KR20140100806A (en) * | 2013-02-07 | 2014-08-18 | 아주대학교산학협력단 | Air cleaner apparatus for construction like tunnel |
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| CN206037292U (en) * | 2016-08-08 | 2017-03-22 | 东莞市金鸿盛电器有限公司 | High -efficient dehumidifier |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578061A (en) * | 2018-12-05 | 2019-04-05 | 贵州大学 | A kind of anti-collapse protection storehouse of underground coal mine exploitation |
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| CN110799000A (en) * | 2019-11-01 | 2020-02-14 | 陕西正通煤业有限责任公司 | Comprehensive operation box for underground belt conveyor of coal mine |
| CN112370916A (en) * | 2020-10-29 | 2021-02-19 | 杨彬只 | Waste gas treatment device and method with good filtering effect |
| CN112973393A (en) * | 2021-03-01 | 2021-06-18 | 河北帮益机械科技有限公司 | Be applied to chemical production's gaseous dehumidifier |
| CN114893252A (en) * | 2022-07-14 | 2022-08-12 | 徐州华兴信息科技有限公司 | Safety monitoring device for mine management that possesses dampproofing function |
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Application publication date: 20181113 |