CN112196601A - Ventilation unit for coal mine operation with monitoring function - Google Patents
Ventilation unit for coal mine operation with monitoring function Download PDFInfo
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- CN112196601A CN112196601A CN202010973175.6A CN202010973175A CN112196601A CN 112196601 A CN112196601 A CN 112196601A CN 202010973175 A CN202010973175 A CN 202010973175A CN 112196601 A CN112196601 A CN 112196601A
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- coal mine
- filter screen
- cover
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- 238000009423 ventilation Methods 0.000 title claims abstract description 125
- 239000003245 coal Substances 0.000 title claims abstract description 79
- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 110
- 238000009434 installation Methods 0.000 claims abstract description 19
- 230000000007 visual effect Effects 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 33
- 239000000428 dust Substances 0.000 claims description 21
- 238000010521 absorption reaction Methods 0.000 claims description 16
- 229920000742 Cotton Polymers 0.000 claims description 14
- 230000035939 shock Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 description 21
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000001179 sorption measurement Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000002337 anti-port Effects 0.000 description 2
- 241000282693 Cercopithecidae Species 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Classifications
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- 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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
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- 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
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a ventilation device with a monitoring function for coal mine operation, which comprises a ventilation shell, a side shell cover, an installation shell, an electric plate, a ventilation fan, a first filter screen cover, a methane sensor, a filter screen box and a second filter screen cover, wherein a top cover is arranged on the top end of the ventilation shell in a threaded manner, an audible and visual alarm is fixedly arranged on the outer wall of the front surface of the ventilation shell, the side shell cover is fixedly arranged on the outer wall of one side of the ventilation shell, a driving motor is fixedly arranged in the side shell cover, one end of a rotating shaft arranged on the output end of the driving motor penetrates through and extends to the interior of the ventilation shell, a driving rotating shaft is fixedly arranged in the ventilation shell, and a driving bevel gear is fixedly arranged at one end; according to the invention, the methane sensor is arranged in the coal mine area, and can effectively monitor the methane concentration in the coal mine area, so that the monitoring function of gas can be realized, people can know the methane concentration in the coal mine area in real time, and the risk of dangerous situations is reduced.
Description
Technical Field
The invention belongs to the field of ventilation in coal mine operation, and particularly relates to a ventilation device with a monitoring function for coal mine operation.
Background
Coal mines are areas where humans mine coal resources in coal-rich mining areas, and are generally divided into underground coal mines and open pit coal mines due to different positions, when the coal layer is far away from the ground surface, the coal layer is generally selected to dig a tunnel to the underground, which is a mineworker coal mine, when the coal seam is very close to the earth surface, the direct stripping of the earth surface soil layer is generally selected to excavate coal, which is an open pit coal mine, most coal mines in China belong to underground coal mines, the coal mine range comprises the ground, underground and large areas of related facilities, the coal mine is a reasonable space excavated by human beings when excavating geological layers rich in coal, generally comprises a roadway, a well cave, an excavation surface and the like, and the coal mine needs to be mined due to good coal mine resources in the coal mine, for some areas in narrow spaces such as underground coal mines and the like, a ventilation device is needed to well ventilate a coal mine operation area.
The prior patent (publication number: CN201920020456.2) discloses a ventilation device for coal mine operation, which comprises a device box and a baffle fixedly connected inside the device box, wherein a collecting cavity is formed by a gap between the baffle and the bottom of the inner wall of the device box, and a dust collecting pipe fixedly connected with the top of the inner wall of the device box is included, the following problems are found in the prior art in the process of realizing the scheme, and good solutions are not obtained: 1. the device is not internally provided with a methane sensor, and the concentration of methane in the air in the coal mine area cannot be monitored in the using process of the device, so that the device does not have a gas monitoring function, and the danger in the coal mine area cannot be predicted in advance; 2. the device is not provided with an alarm warning device, so that the danger cannot be warned, workers are prompted, and the safety is poor; 3. the device does not internally mounted have specific filter bellows, when the device carries out the regional ventilation in colliery, can't carry out filtration purification treatment more effectively to the ventilation air, can't effectively improve air quality, in addition in other prior art, although adopt inside fan to carry out the suction of air in the colliery, and set up filter equipment in monkey suction route, still have partial dust to enter into the headstock easily and cause the drive mechanism to be infected with the dust, current ventilation unit advances to realize carrying out the gaseous suction in the pit, can't ventilate.
Disclosure of Invention
The invention aims to provide a ventilation device with a monitoring function for coal mine operation, which solves the problems that a methane sensor is not arranged in the device provided in the background technology, the methane concentration in the air in a coal mine area cannot be monitored in the using process of the device, the gas monitoring function is not available, the danger in the coal mine area cannot be predicted in advance, an alarm warning device is not arranged on the device, the danger cannot be warned, workers are prompted, the safety is poor, a specific air filter box is not arranged in the device, and when the device ventilates in the coal mine area, the ventilation air cannot be filtered and purified more effectively, and the air quality cannot be improved effectively.
In order to achieve the purpose, the invention provides the following technical scheme:
a ventilation device with a monitoring function for coal mine operation comprises a ventilation shell, a side shell cover, an installation shell, an electric plate, a ventilation fan, a first filter screen cover, a methane sensor, a filter air box and a second filter screen cover, wherein a top cover is installed on the top end of the ventilation shell in a threaded manner, an audible and visual alarm is fixedly installed on the outer wall of the front side of the ventilation shell, the side shell cover is fixedly installed on the outer wall of one side of the ventilation shell, a driving motor is fixedly installed inside the side shell cover, one end of a rotating shaft installed on the output end of the driving motor penetrates through and extends to the inside of the ventilation shell, a driving rotating shaft is fixedly installed at one end of the driving rotating shaft, a driving bevel gear is fixedly installed inside the ventilation shell, the first filter screen cover and the filter air box are installed inside the ventilation shell through a first installation screw and a second installation screw respectively, and a bottom frame, a driven rotating shaft is rotatably mounted in a rotating hole formed in the bottom surface of the underframe, the ventilating fan is fixedly mounted outside the driven rotating shaft through a shaft sleeve, and a driven bevel gear is fixedly mounted at the bottom end of the driven rotating shaft;
the ventilation device is characterized in that an installation shell is fixedly installed on the outer wall of the front side of the ventilation shell, an electric plate is fixedly installed inside the installation shell, a data receiving chip and a single chip microcomputer are fixedly installed on the electric plate, an air inlet pipe is fixedly installed at the bottom of the ventilation shell, a methane sensor is fixedly installed in an installation groove formed in the inner wall of the air inlet pipe, a second filter screen cover is fixedly installed at the bottom of the filter screen box through a connecting shaft, an active carbon layer, a gauze layer and a dust absorption cotton layer are respectively and fixedly installed in the filter screen box from top to bottom, a first filter screen and a second filter screen are respectively and fixedly installed in the first filter screen cover and the second filter screen cover, a first electrostatic generator is arranged on the first filter screen body, two transverse ventilation pipes are symmetrically arranged on the outer wall of the ventilation shell, and a second electrostatic generator, a one-way valve and a first one-way ventilation film are arranged in each transverse ventilation, wherein the three of keeping away from driven shaft axis body direction in the transverse ventilation pipe body sets gradually, still is provided with a second one-way ventilation membrane above the activated carbon layer, and wherein the circulation direction of first and second one-way ventilation membrane is for making the air current flow out ventilation shell and flow in ventilation shell respectively, wherein the check valve need open under satisfying certain external gas pressure condition.
As a further scheme of the invention: and an air outlet pipe is fixedly arranged at the top of the top cover.
As a further scheme of the invention: the first filter screen cover and the second filter screen cover are fixedly provided with a first filter screen and a second filter screen respectively inside.
As a further scheme of the invention: the driving bevel gear is meshed with the driven bevel gear through gears.
As a further scheme of the invention: two audible and visual alarms are symmetrically arranged on the ventilation shell about the longitudinal central axis.
As a further scheme of the invention: two methane sensors are symmetrically arranged around the longitudinal central axis of the air inlet pipe.
As a further scheme of the invention: the thickness of the activated carbon layer, the gauze layer and the dust absorption cotton layer is consistent.
As a further scheme of the invention: and a damping pad is arranged on the outer side of the driving motor and positioned in the side shell cover.
As a further scheme of the invention: the aperture of the first filter screen is smaller than that of the second filter screen.
As a further scheme of the invention: the output of methane sensor and the input electric connection of methane concentration detection module, the output of methane concentration detection module and the input electric connection of data monitoring module, the output of data monitoring module and the input electric connection of data transmission module, the output of data transmission module respectively with data receiving chip and data processing module's input electric connection, data processing module's output and the input electric connection of singlechip, the output of singlechip and audible-visual annunciator's input electric connection.
Compared with the prior art, the methane gas suction device can realize two-way ventilation while realizing methane gas suction, can realize effective adsorption of dust, and prevents the collected methane gas from adhering to a driving mechanical mechanism to cause lubrication damage.
The methane sensor is arranged in the coal mine area, so that the methane sensor can effectively monitor the methane concentration in the coal mine area, the monitoring function of gas can be realized, people can know the methane concentration in the coal mine area in real time, and the risk of dangerous situations is reduced;
according to the methane monitoring device, the audible and visual alarm is mounted outside the device, and in the process of monitoring the methane concentration by the methane sensor, if the methane concentration in the monitored coal mine area exceeds a standard value, the audible and visual alarm is controlled to be automatically started, the audible and visual alarm is carried out to warn that the methane concentration in the coal mine area is too high, so that potential safety hazards are caused, people can take certain safety treatment measures, and the condition of combustion and even explosion of some coal mine areas is prevented;
according to the invention, the double-layer filter screen cover is arranged in the coal mine area, and the filter holes of the double-layer filter screen cover are different in size, so that the double-layer filter screen cover can perform secondary filtration treatment on air in the coal mine area during ventilation, the dust filtration effect on the air in the coal mine is effectively improved, the coal dust in the coal mine area is prevented from being spread to the external environment, and the external environment is effectively protected;
according to the invention, the filter box is arranged in the filter box, and the activated carbon layer, the gauze layer and the dust absorption cotton layer are arranged in the filter box, so that the three-layer structure can well perform good filtering and purifying treatment on the air in the coal mine during ventilation, the air purity during ventilation and air supply is ensured, and the air purifying effect is further improved.
Drawings
Fig. 1 is a perspective sectional view of a ventilation apparatus for coal mine operation with a monitoring function.
Fig. 2 is a schematic view of the internal structure of a ventilation apparatus for coal mine operation with a monitoring function.
Fig. 3 is a plan view of a first screen cover in the ventilation apparatus for coal mine work with a monitoring function.
Fig. 4 is a schematic view showing the internal structure of a filter box in a ventilation apparatus for coal mine operation with a monitoring function.
Fig. 5 is a schematic diagram of a working principle module structure of a ventilation device with a monitoring function for coal mine operation.
In the figure: 1. a ventilated casing; 2. an air outlet pipe; 3. a top cover; 4. an audible and visual alarm; 5. a side casing cover; 6. mounting a shell; 7. A data receiving chip; 8. an electric board; 9. a single chip microcomputer; 10. an air inlet pipe; 11. a ventilating fan; 12. a first strainer cover; 13. a shaft sleeve; 14. a first filter screen; 15. a first mounting screw; 16. a driven rotating shaft; 17. a drive motor; 18. a second mounting screw; 19. a driven bevel gear; 20. a drive bevel gear; 21. driving the rotating shaft; 22. a methane sensor; 23. a filter box; 24. a chassis; 25. an activated carbon layer; 26. a gauze layer; 27. a dust-absorbing cotton layer; 28. a second filter screen; 29. a second strainer cover.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-4, a ventilation device with a monitoring function for coal mine operation comprises a ventilation housing 1, a side housing 5, a mounting shell 6, an electric plate 8, a ventilation fan 11, a first filter screen cover 12, a methane sensor 22, a filter screen box 23 and a second filter screen cover 29, wherein a top cover 3 is installed at the top end of the ventilation housing 1 through threads, an audible and visual alarm 4 is fixedly installed on the outer wall of the front side of the ventilation housing 1, a side housing cover 5 is fixedly installed on the outer wall of one side of the ventilation housing 1, a bidirectional driving motor 17 is fixedly installed inside the side housing cover 5, one end of a rotating shaft installed on the output end of the driving motor 17 penetrates through and extends into the ventilation housing 1, a driving rotating shaft 21 is fixedly installed inside the ventilation housing 1, one end of the driving rotating shaft 21 is fixedly installed with a driving bevel gear 20, the first filter screen cover 12 and the filter screen box 23 are respectively installed inside the ventilation housing 1 through a first mounting screw 15 and a second mounting screw, the bottom of the first filter screen cover 12 is fixedly provided with a bottom frame 24, a driven rotating shaft 16 is rotatably arranged in a rotating hole formed in the bottom surface of the bottom frame 24, a bidirectional ventilating fan 11 is fixedly arranged outside the driven rotating shaft 16 through a shaft sleeve 13, and a driven bevel gear 19 is fixedly arranged at the bottom end of the driven rotating shaft 16;
the ventilation device is characterized in that an installation shell 6 is fixedly installed on the outer wall of the front face of the ventilation shell 1, an electric plate 8 is fixedly installed inside the installation shell 6, a data receiving chip 7 and a single chip microcomputer 9 are fixedly installed on the electric plate 8, an air inlet pipe 10 is fixedly installed at the bottom of the ventilation shell 1, a methane sensor 22 is fixedly installed in an installation groove formed in the inner wall of the air inlet pipe 10, a second filter screen cover 29 is fixedly installed at the bottom of the filter screen box 23 through a connecting shaft, an activated carbon layer 25, a gauze layer 26 and a dust absorption cotton layer 27 are respectively and fixedly installed inside the filter screen box 23 from top to bottom, a first filter screen 14 and a second filter screen 28 are respectively and fixedly installed inside the first filter screen cover 12 and the second filter screen cover 29, a first electrostatic generator is arranged on the gauze body of the first filter screen 14, and two transverse ventilation pipes are symmetrically arranged on the outer wall of, every transverse ventilation pipe body is internally provided with a second electrostatic generator, a one-way valve and a first one-way ventilation film, wherein the three are sequentially arranged in the transverse ventilation pipe body towards the direction far away from the shaft body 16 of the driven rotating shaft, a second one-way ventilation film is further arranged above the activated carbon layer 25, the circulation directions of the first one-way ventilation film and the second one-way ventilation film are respectively used for enabling airflow to flow out of the ventilation shell 1 and flow into the ventilation shell 1, and the one-way valve needs to be opened under the condition of meeting certain external gas pressure.
The first filter screen cover 12 and the filter air box 23 are respectively installed through the first installation screw 15 and the second installation screw 18, when the first filter screen cover 12 and the filter air box 23 need to be detached, the structure is convenient to clean or replace the inside of the first filter screen cover 12 and the inside of the filter air box 23, the bottom of the first filter screen cover 12 is fixedly installed with the bottom frame 24, the driven rotating shaft 16 is rotatably installed in the rotating hole formed in the bottom surface of the bottom frame 24, the ventilating fan 11 is fixedly installed outside the driven rotating shaft 16 through the shaft sleeve 13, the driven bevel gear 19 is fixedly installed at the bottom end of the driven rotating shaft 16, after the driving motor 17 is started, the driving rotating shaft 21 is driven to rotate, the driving rotating shaft 21 drives the driving bevel gear 20 to rotate, and the driven rotating shaft 16 with the driven bevel gear 19 can be driven to rotate due to the gear meshing connection between the driving bevel gear 20 and the, thereby driving the ventilating fan 11 arranged on the shaft sleeve 13 to rotate, and sucking the air in the coal mine operation area into the air inlet pipe 10;
fixed mounting has installation shell 6 on the positive outer wall of ventilation shell 1, the inside fixed mounting of installation shell 6 has electroplax 8, fixed mounting has data reception chip 7 and singlechip 9 on the electroplax 8, the bottom fixed mounting of ventilation shell 1 has air-supply line 10, fixed mounting has methane sensor 22 in the mounting groove of seting up on the inner wall of air-supply line 10, connecting axle fixed mounting has second filter screen panel 29 is passed through to the bottom of filter box 23, the inside of filter box 23 is from last to respectively fixed mounting have active carbon layer 25, gauze layer 26 and the cotton layer 27 of dust absorption down, and gas carries out preliminary filtration processing through the great second filter screen 28 of filtration aperture earlier, and the gas after preliminary filtration continues to float upward, and active carbon layer 25, gauze layer 26 and the cotton layer 27 of dust absorption in the filter box 23 carry out filtration adsorption processing to gas respectively, handle the back, the first filter screen 14 with smaller filter pore diameter further filters the coal mine gas, and the gas after comprehensive treatment can be discharged through the air outlet pipe 2.
The technical characteristics are as follows: the device is arranged at a ventilation position of a coal mine operation area, when ventilation is needed, a driving motor 17 is directly started, after the driving motor 17 is started, a driving rotating shaft 21 is driven to rotate, the driving rotating shaft 21 drives a driving bevel gear 20 to rotate, the driving bevel gear 20 and a driven bevel gear 19 are connected through gear engagement, a driven rotating shaft 16 with the driven bevel gear 19 can be driven to rotate, so that a ventilation fan 11 arranged on a shaft sleeve 13 is driven to rotate, air in the coal mine operation area is sucked into an air inlet pipe 10, a methane sensor 22 in the air inlet pipe 10 can effectively monitor the methane concentration of the introduced air at the moment, concentration data are monitored and uploaded, the single chip microcomputer 9 compares the uploaded concentration data with a set standard value, and if the uploaded concentration data exceed the standard value, the single chip microcomputer 9 can automatically control an audible and visual alarm 4 to alarm to prompt that the methane concentration in the coal mine area is too high, have the potential safety hazard, make people take certain safety processing measure, guarantee the safety in colliery workspace, gaseous earlier carries out preliminary filtration processing through the great second filter screen 28 of filtration aperture diameter, gaseous after the preliminary filtration continues to float upwards, activated carbon layer 25 in the filter box 23, gauze layer 26 and dust absorption cotton layer 27 carry out filtration adsorption process to gaseous respectively, after handling, the further filtration processing that carries out to colliery gas of the less first filter screen 14 of filtration aperture diameter, gaseous accessible play tuber pipe 2 after the comprehensive processing emits, realize the ventilation effect in colliery operation district, when driving motor 17 opens the work, this shock pad can play good shock attenuation guard action to driving motor 17, avoid driving motor 17 to damage.
Referring to fig. 1-4, the top of the top housing 3 is fixedly provided with an air outlet pipe 2, when the device is opened for ventilation, the air can be sent out through the air outlet pipe 2 by installing the air outlet pipe 2, the first filter screen 14 and the second filter screen 28 are respectively and fixedly installed inside the first filter screen 12 and the second filter screen 29, the first filter screen 14 and the second filter screen 28 are installed for secondary dust filtration of the air during ventilation, the air outlet filtration effect of the coal mine gas is greatly improved, the driving bevel gear 20 and the driven bevel gear 19 are connected by gear engagement, after the driving motor 17 is opened, the driving motor 17 drives the driving shaft 21 to rotate to drive the driving bevel gear 20 to rotate, and the driven shaft 16 with the driven bevel gear 19 can be driven to rotate due to the gear engagement connection between the driving bevel gear 20 and the driven bevel gear 19, thereby drive the ventilation fan 11 of installing on axle sleeve 13 and rotate, realize the ventilation effect, audible-visual annunciator 4 installs two about the longitudinal center pin symmetry of ventilation shell 1, through installing two audible-visual annunciators 4, can effectively improve the device's warning effect.
Referring to fig. 2-4, two methane sensors 22 are symmetrically installed about a longitudinal central axis of the air inlet pipe 10, and by installing the double methane sensors 22, in the ventilation process, after the air enters the air inlet pipe 10, the double methane sensors 22 can effectively monitor the methane concentration in the air inlet, so as to monitor the methane concentration data, the double methane sensors 22 can greatly improve the data monitoring accuracy, the thicknesses of the activated carbon layer 25, the gauze layer 26 and the dust absorption cotton layer 27 are consistent, and by designing the thicknesses of the activated carbon layer 25, the gauze layer 26 and the dust absorption cotton layer 27 to be consistent, the adsorption impurity removal effects of the activated carbon layer 25, the gauze layer 26 and the dust absorption cotton layer 27 can be effectively maintained.
Referring to fig. 2-5, a shock pad is installed inside the side casing 5 outside the driving motor 17, and when the driving motor 17 is started to operate, the shock pad can play a good role in shock absorption and protection for the driving motor 17 to prevent the driving motor 17 from being damaged, the aperture of the first filter screen 14 is smaller than that of the second filter screen 28, the second filter screen 28 with a larger filter aperture can effectively perform primary filtering processing on coal mine gas, the first filter screen 14 with a smaller filter aperture further performs further filtering processing on coal mine gas, the output end of the methane sensor 22 is electrically connected with the input end of the methane concentration detection module, the output end of the methane concentration detection module is electrically connected with the input end of the data monitoring module, and the output end of the data monitoring module is electrically connected with the input end of the data transmission module, the output end of the data transmission module is respectively electrically connected with the data receiving chip 7 and the input end of the data processing module, the output end of the data processing module is electrically connected with the input end of the single chip microcomputer 9, the output end of the single chip microcomputer 9 is electrically connected with the input end of the audible and visual alarm 4, when the device works and is ventilated, air in a coal mine area is led into the air inlet pipe 10, the methane sensor 22 can effectively monitor the methane concentration of the led-in air, the concentration data are monitored and uploaded, the uploaded concentration data are compared with a set standard value by the single chip microcomputer 9, if the uploaded concentration data exceed the standard value, the single chip microcomputer 9 can automatically control the audible and visual alarm 4 to alarm and prompt that the methane concentration in the coal mine area is too high, and the device has potential safety hazards, so that people can take certain safety.
It should be noted that: the model of the data receiving chip 7 can be KBD480R, the model of the single chip microcomputer 9 can be STM32F103ZET6, and the model of the methane sensor 22 can be KG 9001C.
The working principle of the invention is as follows: the device is arranged at a ventilation position of a coal mine operation area, when ventilation is needed, a driving motor 17 is directly started, after the driving motor 17 is started, a driving rotating shaft 21 is driven to rotate, the driving rotating shaft 21 drives a driving bevel gear 20 to rotate, the driving bevel gear 20 and a driven bevel gear 19 are connected through gear engagement, a driven rotating shaft 16 with the driven bevel gear 19 can be driven to rotate, so that a ventilation fan 11 arranged on a shaft sleeve 13 is driven to rotate, air in the coal mine operation area is sucked into an air inlet pipe 10, a methane sensor 22 in the air inlet pipe 10 can effectively monitor the methane concentration of the introduced air at the moment, concentration data are monitored and uploaded, the single chip microcomputer 9 compares the uploaded concentration data with a set standard value, and if the uploaded concentration data exceed the standard value, the single chip microcomputer 9 can automatically control an audible and visual alarm 4 to alarm to prompt that the methane concentration in the coal mine area is too high, the safety pad has potential safety hazards, so that people can take certain safety treatment measures to ensure the safety of a coal mine working area, gas is firstly subjected to primary filtration treatment through the second filter screen 28 with a larger filter pore diameter, the primarily filtered gas continuously floats upwards, the activated carbon layer 25, the gauze layer 26 and the dust absorption cotton layer 27 in the filter air box 23 are used for respectively carrying out filtration and adsorption treatment on the gas, after treatment, the coal mine gas is further subjected to further filtration treatment through the first filter screen 14 with a smaller filter pore diameter, the comprehensively treated gas can be discharged through the second one-way ventilation film and the air outlet pipe 2 to realize the ventilation effect of the coal mine working area, when the driving motor 17 is started to work, the shock pad can play a good shock absorption and protection role on the driving motor 17 to avoid the damage of the driving motor 17, in the process, as the air outlet pipe 2 is communicated, the gas pressure on the one-way valve is insufficient, so that the check valve is closed and the second electrostatic generator and the first electrostatic generator in the two transverse ventilation pipes together adsorb dust entering into the ventilation housing 1, thereby reducing the amount of dust adhering to the driving bevel gear 20 and the driven bevel gear 19.
When outside clean air is insufflated in the needs to the colliery, driving motor 17 antiport, thereby drive ventilation fan 11 antiport, thereby introduce outside crystallization air current to ventilation shell 1 inside from going out tuber pipe 2, and because the circulation direction of the one-way membrane of ventilating of second that sets up above activated carbon layer 25 is respectively for making the air current flow in ventilation shell 1, consequently make the clean air that enters into ventilation shell 1 inside advance can follow transverse ventilation pipe and locate to flow, thereby produce certain atmospheric pressure, the check valve is opened, thereby make clean air flow out to the colliery from transverse ventilation pipe in.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (9)
1. The utility model provides a ventilation unit for coal mine operation with monitoring function, includes ventilation housing (1), side shell cover (5), installation shell (6), electroplax (8), ventilating fan (11), first screen panel (12), methane sensor (22), filter box (23) and second screen panel (29), its characterized in that: a top cover (3) is installed on the top end of the ventilation shell (1) through internal threads, an audible and visual alarm (4) is fixedly installed on the outer wall of the front face of the ventilation shell (1), a side shell cover (5) is fixedly installed on the outer wall of one side of the ventilation shell (1), a bidirectional driving motor (17) is fixedly installed inside the side shell cover (5), a driving rotating shaft (21) is fixedly installed at one end of a rotating shaft installed at the output end of the driving motor (17) and penetrates through and extends to the inside of the ventilation shell (1), a driving bevel gear (20) is fixedly installed at one end of the driving rotating shaft (21), a first filter screen cover (12) and a filter screen box (23) are installed inside the ventilation shell (1) through first installation screws (15) and second installation screws (18) respectively, and a bottom frame (24) is fixedly installed at the bottom of the first filter screen cover (12), a driven rotating shaft (16) is rotatably mounted in a rotating hole formed in the bottom surface of the bottom frame (24), a bidirectional ventilating fan (11) is fixedly mounted outside the driven rotating shaft (16) through a shaft sleeve (13), and a driven bevel gear (19) is fixedly mounted at the bottom end of the driven rotating shaft (16);
the utility model discloses a ventilation filter screen, including ventilation shell (1), fixed mounting has installation shell (6) on the front outer wall of ventilation shell (1), the inside fixed mounting of installation shell (6) has electroplax (8), fixed mounting has data reception chip (7) and singlechip (9) on electroplax (8), the bottom fixed mounting of ventilation shell (1) has air-supply line (10), fixed mounting has methane sensor (22) in the mounting groove of seting up on the inner wall of air-supply line (10), the bottom of filter bellows (23) has second filter screen panel (29) through connecting axle fixed mounting, the inside of filter bellows (23) from last to down respectively fixed mounting have activated carbon layer (25), gauze layer (26) and dust absorption cotton layer (27), the inside of first filter screen panel (12) and second filter screen panel (29) respectively fixed mounting have first filter screen (14) and second filter screen (28), be provided with a first electrostatic generator on first filter screen (14) dictyosome, the symmetry is provided with two transverse ventilation pipes on ventilation shell (1) shells outer wall, every transverse ventilation pipe is internal all to be provided with a second electrostatic generator and a check valve and a one-way ventilation membrane, wherein keep away from driven spindle (16) axis body direction three and set gradually in the transverse ventilation pipe body towards, still be provided with a second one-way ventilation membrane in activated carbon layer (25) top, wherein the circulation direction of first and second one-way ventilation membrane is respectively for making airflow outflow ventilation shell (1) and inflow ventilation shell (1), wherein the check valve need open under satisfying certain outside gas pressure condition.
2. The ventilation device with the monitoring function for the coal mine operation is characterized in that an air outlet pipe (2) is fixedly arranged at the top of the top cover (3).
3. The ventilation device with the monitoring function for the coal mine operation is characterized in that the driving bevel gear (20) and the driven bevel gear (19) are in meshed connection through gears.
4. A ventilation device with a monitoring function for coal mine operation as claimed in claim 1, characterized in that the audible and visual alarm (4) is installed in two symmetrically about the longitudinal central axis of the ventilation housing (1).
5. A coal mine working ventilation apparatus with a monitor function according to claim 1, wherein two methane sensors (22) are installed symmetrically about a longitudinal center axis of the air inlet duct (10).
6. A coal mine working ventilation device with a monitoring function according to claim 1, characterized in that the activated carbon layer (25), the gauze layer (26) and the dust absorption cotton layer (27) have the same thickness.
7. A coal mine working ventilation device with a monitoring function according to claim 1, characterized in that a shock absorption pad is installed outside the driving motor (17) and inside the side casing (5).
8. A coal mine working ventilation device with a monitoring function according to claim 1, characterized in that the first screen (14) has a smaller pore size than the second screen (28).
9. The ventilation device with the monitoring function for the coal mine operation is characterized in that the output end of the methane sensor (22) is electrically connected with the input end of the methane concentration detection module, the output end of the methane concentration detection module is electrically connected with the input end of the data monitoring module, the output end of the data monitoring module is electrically connected with the input end of the data transmission module, the output end of the data transmission module is electrically connected with the data receiving chip (7) and the input end of the data processing module respectively, the output end of the data processing module is electrically connected with the input end of the single chip microcomputer (9), and the output end of the single chip microcomputer (9) is electrically connected with the input end of the audible and visual alarm (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010973175.6A CN112196601A (en) | 2020-09-16 | 2020-09-16 | Ventilation unit for coal mine operation with monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010973175.6A CN112196601A (en) | 2020-09-16 | 2020-09-16 | Ventilation unit for coal mine operation with monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112196601A true CN112196601A (en) | 2021-01-08 |
Family
ID=74016381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010973175.6A Withdrawn CN112196601A (en) | 2020-09-16 | 2020-09-16 | Ventilation unit for coal mine operation with monitoring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112196601A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832845A (en) * | 2021-01-11 | 2021-05-25 | 重庆工程职业技术学院 | Coal mine coal face upper corner gas extraction device and extraction method thereof |
| CN113586121A (en) * | 2021-09-28 | 2021-11-02 | 南通中远重工有限公司 | Ventilation unit for mine with alarm device |
| CN117287245A (en) * | 2023-11-14 | 2023-12-26 | 江苏澳构矿业科技股份有限公司 | Ventilation device for mine |
-
2020
- 2020-09-16 CN CN202010973175.6A patent/CN112196601A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832845A (en) * | 2021-01-11 | 2021-05-25 | 重庆工程职业技术学院 | Coal mine coal face upper corner gas extraction device and extraction method thereof |
| CN112832845B (en) * | 2021-01-11 | 2022-09-02 | 重庆工程职业技术学院 | Gas extraction device and method for upper corner of coal mining working face of coal mine |
| CN113586121A (en) * | 2021-09-28 | 2021-11-02 | 南通中远重工有限公司 | Ventilation unit for mine with alarm device |
| CN113586121B (en) * | 2021-09-28 | 2021-11-30 | 南通中远重工有限公司 | Ventilation unit for mine with alarm device |
| CN117287245A (en) * | 2023-11-14 | 2023-12-26 | 江苏澳构矿业科技股份有限公司 | Ventilation device for mine |
| CN117287245B (en) * | 2023-11-14 | 2024-02-27 | 江苏澳构矿业科技股份有限公司 | Ventilation device for mine |
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Application publication date: 20210108 |
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