CN115013062A - Mobile coal mine airflow monitoring risk avoiding device - Google Patents
Mobile coal mine airflow monitoring risk avoiding device Download PDFInfo
- Publication number
- CN115013062A CN115013062A CN202210629017.8A CN202210629017A CN115013062A CN 115013062 A CN115013062 A CN 115013062A CN 202210629017 A CN202210629017 A CN 202210629017A CN 115013062 A CN115013062 A CN 115013062A
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- Prior art keywords
- pipeline
- fan blade
- bottom plate
- fan
- cover
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- 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
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- 239000003245 coal Substances 0.000 title claims abstract description 33
- 238000012544 monitoring process Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims description 38
- 230000001681 protective effect Effects 0.000 claims description 15
- 230000002155 anti-virotic effect Effects 0.000 claims description 4
- 230000007123 defense Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 13
- 238000005065 mining Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002574 poison Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
Images
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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- 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
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a mobile coal mine airflow monitoring danger avoiding device, which relates to an airflow detection device and comprises a bottom plate, wherein an airflow device is fixedly arranged on the bottom plate, the airflow device comprises a pipeline, the pipeline is fixedly arranged on the bottom plate, a plurality of fan slide bars are fixedly arranged at one end of the pipeline, a pipeline bracket is fixedly arranged at the other end of each fan slide bar, the pipeline bracket is fixedly arranged on the bottom plate, a fan blade lead screw is rotatably arranged on the fan blade lead screw and is rotatably connected with the pipeline, a fan blade cover is arranged on the fan blade lead screw in a matched mode, the fan blade cover is also slidably arranged on the fan slide bars, a fan motor is fixedly arranged on the fan blade cover, fan blades are fixedly arranged on an output shaft of the fan motor, and the detection range and the detection speed of the device are changed by driving the fan blade cover to move.
Description
Technical Field
The invention relates to an airflow detection device, in particular to a mobile coal mine airflow monitoring risk avoiding device.
Background
The coal mine is an area where people mine coal resources in a coal-rich mining area, and is generally divided into a mineworker coal mine and an opencast coal mine, when a coal layer is far away from the ground surface, the coal mine is generally selected to dig a tunnel to the underground, the mineworker coal mine is the mineworker coal mine, when the coal layer is very close to the ground surface, the coal mine is generally selected to dig the coal by directly stripping a surface soil layer, the opencast coal mine is the opencast coal mine, most coal mines in China belong to the mineworker coal mine, the coal mine range comprises the ground underground and a large area of related facilities, the coal mine is a reasonable space excavated by people when digging a geological layer rich in the coal, the coal mine generally comprises a tunnel, a well cave, a digging surface and the like, the coal is the most main solid fuel, is one of combustible organic rock, the coal mine is very dangerous during mining, and if ventilation in a mine cave is not smooth, hydrogen sulfide or other harmful substances along with deposition are emitted into the air to cause poisoning or explosion of mining workers, the life safety of workers is threatened.
The invention discloses a mine safety shelter, which is a Chinese invention with publication number CN114183189A, and comprises a support shell, wherein an automatic packing closestool, an oxygen inhalation device, a communication device, a excrement storage box, a replacement device and a ventilation system are arranged in the support shell.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the problem of detect harmful gas's function is solved, and this device is in the course of the work simultaneously, will give near people's help and protection to the harmful gas district.
In order to solve the technical problems, the invention provides the following technical solutions: a mobile coal mine airflow monitoring danger avoiding device comprises a bottom plate, wherein an airflow device is fixedly installed on the bottom plate, an anti-poison device is further fixedly installed on the bottom plate, the airflow device comprises a pipeline, the pipeline is fixedly installed on the bottom plate, a plurality of fan slide bars are fixedly installed at one end of the pipeline, a pipeline bracket is fixedly installed at the other end of each fan slide bar, the pipeline bracket is fixedly installed on the bottom plate, a fan blade lead screw is rotatably installed on the fan blade lead screw and is rotatably connected with the pipeline, a fan blade cover is installed on the fan blade lead screw in a matched mode and is further slidably installed on the fan slide bars, a fan motor is fixedly installed on the fan blade cover, a fan blade is fixedly installed on an output shaft of the fan motor, an angle control cover is further slidably installed on the pipeline, an air cylinder rod is fixedly installed on the angle control cover, and a sliding air cylinder is fixedly installed on the air cylinder rod, the sliding cylinder is fixedly installed on the bottom plate, and a plurality of angle rods are fixedly installed on the angle control cover.
Further, the anti-poison device is including electric control's clutch box, and clutch box fixed mounting is on the bottom plate, fixed mounting has the band pulley on the output shaft that angle control cover was kept away from to the clutch box, is provided with the transmission band on the band pulley, still fixed mounting has the protective housing on the bottom plate, places a plurality of gas mask in the protective housing, still be provided with gas mask's exit channel in the protective housing, fixed mounting has transmission on the input shaft that is close to angle control cover on the clutch box, transmission's other end fixed mounting has for driven transmission shaft, and the transmission shaft rotates and installs on the protective housing, it has transmission device to go back fixed mounting on the transmission shaft, and transmission device's other end fixed mounting has and is used for driven friction pulley, the friction pulley rotates and installs on the fixed bolster, and fixed bolster fixed mounting is used for supporting the friction pulley on the bottom plate.
Furthermore, a swing motor is fixedly arranged on the bottom plate, a swing rod is rotatably arranged on the swing motor, a control plate for guiding the wind direction is rotatably arranged on the swing rod, the control plate is rotatably arranged on the bottom plate,
furthermore, a sliding ring is fixedly mounted on the angle rod, an opening and closing rod for supporting is slidably mounted on the sliding ring, the opening and closing rod is rotatably mounted on the pipeline, and a beam current cover is fixedly mounted on the opening and closing rod.
Further, the one side that the axle center was kept away from to the pipeline and the one end fixed mounting that is close to the pipe bracket have outer detection device, the one side that the pipeline is close to the axle center and the one end fixed mounting that keeps away from the pipe bracket of pipeline have interior detection device.
Furthermore, a protruding block is arranged on the conveying belt and used for supporting the gas mask out.
Furthermore, the beam current cover is made of rubber and is in a circular truncated cone shape.
Compared with the prior art, the invention has the beneficial effects that: (1) the function that the device cannot move in a mine is solved through the driving of the roller and the fan blades; (2) detecting whether harmful substances exist in air in a mine or not through an inner detection device and an outer detection device; (3) providing assistance to workers in the mine through a gas mask in the protective box; (4) the device can move freely in the mine by the rotation of the control board.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the structure of the airflow device of the present invention.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
FIG. 4 is a schematic view of the anti-virus device of the present invention.
FIG. 5 is a schematic view of the internal structure of the airflow device of the present invention.
Description of the drawings: 1-a bottom plate; 2-an air flow device; 3-a gas defense device; 101-a control panel; 102-a sway bar; 103-a swing motor; 201-a pipe support; 202-fan blade lead screw; 203-fan blade cover; 204-fan blades; 205-a pipe; 206-angle control housing; 207-cylinder rod; 208-angle bar; 209-opening and closing rod; 210-a slip ring; 211-beam current cover; 212-fan slide bar; 213-a fan motor; 214-a sliding cylinder; 215-external detection means; 216-inner detection means; 301-a pulley; 302-a transmission; 303-a drive shaft; 304-a friction wheel; 305-a fixed support; 306-a transmission device; 307-protective box; 308-gas mask; 309-conveying belt; 310-a slider; 311-clutch box.
Detailed Description
As shown in fig. 1 and 2, a plurality of rollers for moving the device are fixedly mounted on the base plate 1, a swing motor 103 is fixedly mounted on the base plate 1, a swing lever 102 is rotatably mounted on the swing motor 103, a control plate 101 for guiding the wind direction is rotatably mounted on the swing lever 102, and the control plate 101 is rotatably mounted on the base plate 1.
As shown in fig. 1, fig. 2 and fig. 5, an air flow device 2 is further fixedly mounted on the bottom plate 1, the air flow device 2 includes a pipe support 201 for supporting, a moving motor is fixedly mounted on the pipe support 201, the utility model discloses a fan blade cover of air conditioner, including pipeline support 201, fan blade lead screw 202 is installed in the rotation on the pipeline support 201, the one end of fan blade lead screw 202 and the output shaft fixed connection of moving motor, still slidable mounting has a plurality of fan slide bar 212 that are used for supporting fan blade cover 203 on the fan blade cover 203, fan slide bar 212 fixed mounting is on pipeline support 201, the other end fixed mounting of fan slide bar 212 has pipeline 205, pipeline 205 fixed mounting is on bottom plate 1, pipeline 205 is close to the one end of pipeline support 201 and keeps away from the one side fixed mounting in pipeline 205 axle center has outer detection device 215, the one side of keeping away from pipeline support 201 on the pipeline 205 and being close to the axle center still fixed mounting has interior detection device 216, outer detection device 215 and interior detection device 216 all are for whether there is harmful gas's device in the detection air current.
As shown in fig. 2, 3 and 5, a fan motor 213 is further fixedly mounted on the fan blade cover 203, a fan blade 204 for making air flow is fixedly mounted on an output shaft of the fan motor 213, the fan blade 204 rotates to drive air around the fan blade cover 203 and send the air into the pipeline 205, a sliding cylinder 214 is fixedly mounted on the base plate 1, a cylinder rod 207 is fixedly mounted at the other end of the sliding cylinder 214, an angle control cover 206 is fixedly mounted on the cylinder rod 207, the angle control cover 206 is slidably mounted on the pipeline 205, a plurality of angle rods 208 are fixedly mounted on the angle control cover 206, a sliding ring 210 is fixedly mounted on the angle rods 208, an opening and closing rod 209 for supporting is slidably mounted on the sliding ring 210, the opening and closing rod 209 is rotatably mounted on the pipeline 205, a beam current cover 211 is fixedly mounted on the opening and closing rod 209, the beam current cover 211 is made of rubber, and the beam current cover 211 is in a circular table shape.
As shown in fig. 2 and 4, an electrically controlled clutch box 311 is fixedly installed on the base plate 1, the clutch box 311 is controlled by the outer detection device 215 and the inner detection device 216, a pulley 301 is fixedly installed on an output shaft of the clutch box 311 away from the angle control cover 206, a transmission belt 309 is installed on the pulley 301, a protrusion block is installed on the transmission belt 309 for supporting an object, a protective box 307 for storing and preventing foreign matters and dust is also fixedly installed on the base plate 1, a plurality of respirators 308 are placed in the protective box 307, since the protective box 307 is set to be a box with a slope, the respirators 308 can slide towards the pulley 301 due to gravity, an outlet channel of the respirators 308 is also installed in the protective box 307 for allowing the respirators 308 to be taken out by the pulley 301, a slide block 310 is also installed on the base plate 1, the slide block 310 has a slope angle, when the gas mask 308 is driven by the rotation of the transmission belt 309 to be taken out of the protective box 307 and then falls onto the sliding block 310 by gravity, the gas mask 308 slides to the outer side of the device due to the slope of the sliding block 310, the input shaft of the clutch box 311 close to the angle control cover 206 is fixedly provided with the transmission device 302, the other end of the transmission device 302 is fixedly provided with the transmission shaft 303 for transmission, the transmission shaft 303 is rotatably arranged on the protective box 307, the transmission device 306 is also fixedly arranged on the transmission shaft 303, the other end of the transmission device 306 is fixedly provided with the friction wheel 304 for driving, the friction wheel 304 is rotatably arranged on the fixed bracket 305, the fixed bracket 305 is fixedly arranged on the bottom plate 1 for supporting the friction wheel 304, the friction wheel 304 is driven by the ground in the moving process of the device and rotates, so that the height of the friction wheel 304 is consistent with the height of the roller on the bottom plate 1, the transmission device 302 is composed of two pulleys and one belt, the transmission 306 is identical in structure to the transmission 302.
The specific working principle is as follows: when the device is detected in a mine, a fan motor 213 is started to drive fan blades 204 to rotate so as to drive air to flow into a pipeline 205, the device moves, when the device moves, the ground drives a friction wheel 304 to rotate, then a transmission device 306 drives a transmission shaft 303 to rotate, then a transmission device 302 drives an input shaft of a clutch box 311 to rotate, when an outer detection device 215 and an inner detection device 216 detect poison gas in the air, an alarm is continuously given to prompt people around to evacuate emergently, power of an output shaft in the clutch box 311 is transmitted to the output shaft, at the moment, the output shaft of the clutch box 311 drives a belt wheel 301, the belt wheel 301 drives a transmission belt 309 to rotate, then a gas mask 308 is taken out of a protection box 307 by a bump on the transmission belt 309, then the gas mask slides out by a slide block 310 to be provided for evacuated workers to use, or the passing workers directly open the protection box, the respirator is taken out directly.
In normal operation, after the fan blades 204 rotate, air flow around the fan blade cover 203 is driven to enter the pipeline 205, the air flow is transmitted into the beam flow cover 211 through the pipeline 205, the air cylinder rod 207 is driven to move towards the direction of the pipeline bracket 201 through the sliding air cylinder 214, then the air cylinder rod 207 drives the angle control cover 206 to move, the angle control cover 206 moves to drive the angle rod 208, the angle rod 208 drives the sliding ring 210 to slide on the opening and closing rod 209, the opening and closing rod 209 rotates on the connecting shaft of the pipeline 205, meanwhile, the opening and closing rod 209 gradually opens the beam flow cover 211, so that the angle y formed by the beam flow cover 211 and the pipeline 205 is gradually reduced, at the moment, because air suddenly flows into the bottom plate 1 which is larger than the previous bottom plate 1 from the pipeline 205 of the small bottom plate 1, the air flow rate is reduced, if y is continuously reduced, the air flow rate is continuously reduced, at the moment, the moving speed of the device is also reduced, and the air safety detected in the slow mode is improved, if y is continuously increased, the ventilation air flow rate is increased, the moving speed of the device is also increased, in this case, for emergency, in order to quickly go deep into the mine hole for quick detection, in addition, the moving motor on the pipeline support 201 can be used for controlling the movement of the fan blade cover 203, when the moving motor drives the fan blade screw 202, the fan blade cover 202 drives the fan blade cover 203 to slide on the fan slide bar 212 to the pipeline 205, and when the end face of the fan blade cover 203 is attached to the end face of the pipeline 205, the air flow enters the fan blade cover 203 from one end of the pipeline support 201 by the fan blade cover 203, but when the fan blade cover 203 moves towards the pipeline support 201, a gap is generated between the fan blade cover 203 and the pipeline 205, when the air flow driven by the fan blade 204 flows through the gap generated by the fan blade cover 203 and the pipeline 205, the air flow outside the gap between the fan blade cover 203 and the pipeline 205 is driven, that is the air flow at one end of the fan blade cover 203 far away from the pipeline support 201 flows into the pipeline 205, this enlarges the range of the device for detecting the toxin in the air, when the gap between the fan blade cover 203 and the duct 205 is larger, the airflow flowing into the duct 205 from the fan blade cover 203 will drive the air to flow into the duct 205 in a larger range, and then the inner detection device 216 will detect whether the flowing air is harmful, and the outer detection device 215 outside the duct 205 will not detect in the process of moving the device, and will detect whether the air flowing into the duct 205 is harmful when the gap between the fan blade cover 203 and the duct 205 is generated.
When the device is driven by the fan blades 204 to move, the swing rod 102 is driven by the swing motor 103 to rotate on the output shaft of the swing motor 103, then the control panel 101 drives the swing rod 102 to rotate on the bottom plate 1, and the direction of the air flow flowing out of the beam flow cover 211 is changed by controlling the rotation of the control panel 101, so that the direction of the device moving is controlled.
Claims (7)
1. The utility model provides a dangerous device is kept away in monitoring of removal type colliery air current, includes bottom plate (1), its characterized in that: the gas flow device (2) is fixedly arranged on the bottom plate (1), and the gas defense device (3) is also fixedly arranged on the bottom plate (1);
the airflow device (2) comprises a pipeline (205), the pipeline (205) is fixedly installed on the bottom plate (1), one end of the pipeline (205) is fixedly provided with a plurality of fan sliding rods (212), the other end of each fan sliding rod (212) is fixedly provided with a pipeline support (201), the pipeline support (201) is fixedly installed on the bottom plate (1), a fan blade lead screw (202) is rotatably installed on the fan blade lead screw (202), the fan blade lead screw (202) is rotatably connected with the pipeline (205), a fan blade cover (203) is installed on the fan blade lead screw (202) in a matched mode, the fan blade cover (203) is further slidably installed on the fan sliding rods (212), a fan motor (213) is fixedly installed on the fan blade cover (203), a fan blade (204) is fixedly installed on an output shaft of the fan motor (213), an angle control cover (206) is further slidably installed on the pipeline (205), and an air cylinder rod (207) is fixedly installed on the angle control cover (206), a sliding cylinder (214) is fixedly mounted on the cylinder rod (207), the sliding cylinder (214) is fixedly mounted on the base plate (1), and a plurality of angle rods (208) are fixedly mounted on the angle control cover (206).
2. The mobile coal mine airflow monitoring risk avoiding device according to claim 1, wherein: the anti-virus device (3) comprises an electrically controlled clutch box (311), the clutch box (311) is fixedly installed on the bottom plate (1), a belt wheel (301) is fixedly installed on an output shaft of the clutch box (311) far away from the angle control cover (206), a conveying belt (309) is arranged on the belt wheel (301), a protective box (307) is further fixedly installed on the bottom plate (1), a plurality of anti-virus masks (308) are placed in the protective box (307), an outlet channel of the anti-virus masks (308) is further arranged in the protective box (307), a transmission device (302) is fixedly installed on an input shaft, close to the angle control cover (206), of the clutch box (311), a transmission shaft (303) for transmission is fixedly installed at the other end of the transmission device (302), the transmission shaft (303) is rotatably installed on the protective box (307), a transmission device (306) is further fixedly installed on the transmission shaft (303), the other end of the transmission device (306) is fixedly provided with a friction wheel (304) for driving, the friction wheel (304) is rotatably arranged on a fixed support (305), and the fixed support (305) is fixedly arranged on the bottom plate (1) and used for supporting the friction wheel (304).
3. The mobile coal mine airflow monitoring risk avoiding device according to claim 1, wherein: the wind direction guiding device is characterized in that a swing motor (103) is fixedly mounted on the bottom plate (1), a swing rod (102) is rotatably mounted on the swing motor (103), a control plate (101) used for guiding the wind direction is rotatably mounted on the swing rod (102), and the control plate (101) is rotatably mounted on the bottom plate (1).
4. The mobile coal mine airflow monitoring risk avoiding device according to claim 1, wherein: fixed mounting has slip ring (210) on angle pole (208), and slidable mounting has opening and closing pole (209) that are used for supporting on slip ring (210), opens and closes pole (209) and rotate and install on pipeline (205), opens and closes and go up fixed mounting on pole (209) and have beam current cover (211).
5. The mobile coal mine airflow monitoring risk avoiding device according to claim 1, wherein: pipeline (205) keep away from the one side of axle center and the one end fixed mounting who is close to pipe bracket (201) has outer detection device (215), pipeline (205) are close to the one side of axle center and the one end fixed mounting who keeps away from pipe bracket (201) has interior detection device (216).
6. The mobile coal mine airflow monitoring risk avoiding device according to claim 2, wherein: the transmission band (309) is provided with a protruding block for supporting out the gas mask (308).
7. The mobile coal mine airflow monitoring risk avoiding device according to claim 1, wherein: the beam current cover (211) is made of rubber, and the beam current cover (211) is in a circular truncated cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210629017.8A CN115013062A (en) | 2022-06-06 | 2022-06-06 | Mobile coal mine airflow monitoring risk avoiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210629017.8A CN115013062A (en) | 2022-06-06 | 2022-06-06 | Mobile coal mine airflow monitoring risk avoiding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115013062A true CN115013062A (en) | 2022-09-06 |
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ID=83073620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210629017.8A Pending CN115013062A (en) | 2022-06-06 | 2022-06-06 | Mobile coal mine airflow monitoring risk avoiding device |
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| Country | Link |
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| CN (1) | CN115013062A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211058843U (en) * | 2019-11-19 | 2020-07-21 | 西安西科安全技术有限公司 | Ventilation device for coal mine |
| CN211425360U (en) * | 2020-03-13 | 2020-09-04 | 山东省邱集煤矿有限公司 | Device convenient for displaying top plate pressure |
| CN212867612U (en) * | 2020-07-14 | 2021-04-02 | 李殿文 | Ventilation unit that mine was used |
| CN212927924U (en) * | 2020-06-23 | 2021-04-09 | 秦会锦 | Ventilation unit for coal mining operation |
| CN213392747U (en) * | 2020-07-27 | 2021-06-08 | 纵揽建设发展有限公司 | Fire-fighting ventilator for mining security |
| CN215486174U (en) * | 2021-07-06 | 2022-01-11 | 山西道胜煤机成套设备有限公司 | Monitoring device for coal mine safety |
-
2022
- 2022-06-06 CN CN202210629017.8A patent/CN115013062A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211058843U (en) * | 2019-11-19 | 2020-07-21 | 西安西科安全技术有限公司 | Ventilation device for coal mine |
| CN211425360U (en) * | 2020-03-13 | 2020-09-04 | 山东省邱集煤矿有限公司 | Device convenient for displaying top plate pressure |
| CN212927924U (en) * | 2020-06-23 | 2021-04-09 | 秦会锦 | Ventilation unit for coal mining operation |
| CN212867612U (en) * | 2020-07-14 | 2021-04-02 | 李殿文 | Ventilation unit that mine was used |
| CN213392747U (en) * | 2020-07-27 | 2021-06-08 | 纵揽建设发展有限公司 | Fire-fighting ventilator for mining security |
| CN215486174U (en) * | 2021-07-06 | 2022-01-11 | 山西道胜煤机成套设备有限公司 | Monitoring device for coal mine safety |
Non-Patent Citations (1)
| Title |
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| 王忠旭;秦汝莉;李玉珍;赵容;李建国;赵春香;刘茁;张秋玲;朱宝立;: "我国23家煤矿企业职业病危害因素及其防护现状", 环境与职业医学, no. 06, 25 December 2009 (2009-12-25) * |
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