CN116291683A - Intelligent dust control device and method for front-mounted air distribution of coal mine - Google Patents
Intelligent dust control device and method for front-mounted air distribution of coal mine Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- 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
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The invention discloses a front-mounted wind-dividing intelligent dust control device and method for a coal mine, and relates to the field of dust pollution control of a tunneling surface. The device divides the compressed air flow into axial air flow and radial air flow by arranging the front air distributor at the front end of the air pressing port of the fully-mechanized excavating working face, reduces the axial air flow quantity flowing to the front of the head, and simultaneously changes the position of the inner pipe by a compound elbow structure designed by the radial air outlet of the front air distributor through bolts to form radial air flows with different angles so as to form a better dust suppression air curtain and prevent the front dust from diffusing and polluting to the rear. The dust concentration is monitored by the gas sensor, and the automatic adjustment of axial and radial air distribution is realized by an underground wireless transmission technology so as to avoid the exceeding of the gas concentration. The application provides a safe, high-efficient dust control device that working face can be used is fully mechanized to high gas, easy operation has reduced workman's work load, and accuse dust removal effect is stable, and has advantages such as economic nature is good, application scope is wide, application prospect is good.
Description
Technical Field
The invention relates to the field of dust pollution control of a tunneling surface, in particular to a front-mounted wind-dividing intelligent dust control device and method for a coal mine.
Background
The coal industry has an important strategic position in national economy. According to the related predictions, the dominant position of coal in the energy constitution of China still does not change in a period of time in the future, and the coal is still one of the most important basic industries in national economy and has irreplaceability. The fully-mechanized coal mining operation is one of the main dust production procedures of the coal mine, and the dust production amount accounts for 30% -40% of the total dust production amount of the mine. According to the actual measurement, the dust concentration of the tunneling working face can reach 3000mg/m 3 The upper limit requirements of the national regulations have been far exceeded. The dust hazard of the coal mine is mainly characterized in two aspects, namely, the dust can cause serious dust explosion accidents under certain conditions, and the dust can cause pneumoconiosis of operators, so that the dust pollution seriously threatens the safety and the health of miners and the efficient production of mines. Thus, the first and second substrates are bonded together,improving the working environment of the fully-mechanized coal mining face and reducing dust pollution becomes a leading edge technology and a difficult problem which need to be solved urgently for high-strength coal mining.
At present, a wall-attached air duct technology is proposed in the aspect of a dust control air curtain of a tunneling surface at home and abroad, the principle is that the wall-attached air duct is additionally arranged, an intangible dust suppression air curtain is formed near a head of a person under the action of a wall-attached effect, high-concentration dust is suppressed near the head of the person, and then the dust is pumped out for purification treatment by a fan, so that the dust suppression effect is good. However, the wall-attached air duct device adopted by the technology is arranged between two sections of conventional air pressure ducts, workers need to carry heavier wall-attached air ducts to move forward along with the forward pushing of tunneling, the workload is large, the risk of high-altitude operation exists, the effective dust control range is small, the device is difficult to be suitable for working surfaces with higher gas, and a large amount of gas is easy to accumulate. Accordingly, the prior art is subject to further development.
Disclosure of Invention
The invention aims at overcoming the defects, and provides an intelligent dust control device and method for front-mounted air distribution of mines, which are used for dividing the compressed air flow into axial air flow and radial air flow by arranging a front-mounted air distributor at the front end of a compressed air port, reducing the axial air flow quantity flowing to the front of a head on and forming radial air flows at different angles.
The invention adopts the following technical scheme:
the utility model provides a leading wind intelligent dust control device that divides of colliery, the device is installed in the tunnel, install comprehensive digger and pressure wind section of thick bamboo in the tunnel, the device includes wind divider main part, wet dust removal fan and gas concentration sensor, wind divider main part installs in the front end of pressure wind section of thick bamboo, including wind divider main part outer tube and wind divider main part inner tube, set up the wind-dividing bent plate that is embedded structure in the wind divider main part outer tube, the one end opening of wind divider main part outer tube is as radial air outlet, wind divider main part inner tube sets up in radial air outlet department, the other end opening of wind divider main part outer tube connects the pressure wind mouth front end of pressure wind section of thick bamboo; the outer tube of the main body of the air distributor is provided with a transverse stripe hole as an axial air outlet, an axial air outlet adjusting device, an air quantity adjusting plate and an air quantity control fixing plate are arranged at the axial air outlet, and the air quantity control is realized by adjusting the relative positions of the air quantity adjusting plate and the air quantity control fixing plate.
Preferably, the outer pipe of the wind distributor body and the inner pipe of the wind distributor body are connected through bolts, and the relative positions of the outer pipe of the wind distributor body and the inner pipe of the wind distributor body can be changed through adjusting bolts.
Preferably, the inner tube of the wind distributor main body is provided with a gap, the gap is matched with the wind distributor bending plate, the inner tube of the wind distributor main body can move along the wind distributor bending plate to form different radial wind outlet angles, the inner tube of the wind distributor main body and the outer tube of the wind distributor main body are respectively provided with 3-6 holes, and the wind distributor bending plate is matched with the inner tube of the wind distributor main body to change the wind direction of radial wind flow.
Preferably, the main body of the air separator is connected to the front end of the air pressing opening of the air pressing cylinder, the effective air outlet area of the radial air outlet accounts for 70% -90% of the sectional area of the air pressing cylinder, and the ratio of the radial air outlet to the axial air outlet is 6:4-9:1.
Preferably, the outer tube of the main body of the wind separator is a 90-120-degree bent tube, one end of the bent tube is connected with the air pressing port, the other end of the bent tube is a radial air outlet, a gap is formed in a bent plate at the radial air outlet, the inner tube of the main body of the wind separator can be inserted, the upper wall of the outer tube of the main body of the wind separator is uniformly perforated linearly along the built-in bent plate, and the position of the inner tube of the main body of the wind separator is changed by matching with that of the inner tube of the main body of the wind separator perforated at the same position and is fixed by bolts.
Preferably, the axial air outlet adjusting device is welded at two sides of the air quantity control fixed plate, three transverse stripe holes which are uniformly arranged and equally spaced are formed in the air quantity control fixed plate, the stripe holes are 0.8-1.2 m long and 0.04-0.06 m wide, the open pore area accounts for about 30% -50% of the sectional area of the compressed air cylinder, an air quantity adjusting plate which slides up and down is arranged in an interlayer of the air quantity control fixed plate, and the stripe holes on the air quantity adjusting plate are identical with the air quantity control fixed plate; rack-shaped limiting ports for controlling positions are respectively arranged on two sides of the air quantity adjusting plate; the axial air outlet adjusting device comprises a servo motor, a battery and a transmission gear, wherein the transmission gear is rotated by electric power to adjust the relative position relation between the rack-shaped limiting opening, the overlapping area of the air quantity adjusting plate and the air quantity control fixing plate is changed, and then the axial air quantity flowing to the head-on is changed.
Preferably, the diameters of the outer tube of the wind distributor main body and the inner tube of the wind distributor main body are 0.55-1.0 m.
Preferably, the wet dust removal fan is arranged above the fully-mechanized coal mining machine, and the gas concentration sensor is hung above the head-on top plate.
Preferably, the main body of the air distributor is made of common flexible air duct cloth, iron sheet or plastic and is hung on the roadway roof through iron wires.
The intelligent dust control method for the front-mounted air distribution of the coal mine adopts the device, the gas concentration in the head-on area is monitored in real time through the gas concentration sensor, the concentration measured by the gas concentration sensor is transmitted to the axial air outlet adjusting device through underground wireless data along with the advance of a tunneling surface, a wireless communication chip, a PLC microprocessor and a battery are arranged in the axial air outlet adjusting device, the PLC microprocessor is used for judging whether the gas concentration is out of limit or not so as to drive the motor to operate, and the rotating gear is used for realizing the intelligent adjustment of the axial air quantity by changing the position of the air quantity adjusting plate;
when the gas concentration is normal, the motor does not act, the air quantity adjusting state is unchanged, the axial air quantity is kept in a smaller state, head-on dust dissipation caused by excessive air quantity is avoided, radial air flows flow out along the radial air outlet, the air flows flowing to the wall surface of the roadway on the other side form a rotational flow air curtain for preventing the dust from diffusing backwards under the coanda effect, and meanwhile, part of the air flows move backwards to provide fresh air flows for human respiration;
when the concentration of the gas exceeds the standard, the position of the air quantity adjusting plate is intelligently controlled, the axial air quantity is increased, and the gas accumulated in front of the head is rapidly diluted.
The invention has the following beneficial effects:
according to the intelligent dust control technology and method for front-mounted air distribution of the coal mine, the radial air distribution quantity and the air direction of the shaft can be intelligently adjusted according to the concentration of head-on gas and the dust dissipation condition, the workload of replacing the air duct is only 1 person, and the workload is small; because the front-mounted air distributor is positioned at a front position, the effect is better by 10-30 m from the head-on, the effective dust control and removal range is doubled, the dust control and removal stability is better, and the comprehensive dust control and removal efficiency is higher than 97%; the gas concentration sensor can be used for monitoring the gas concentration in real time to adjust the air distribution quantity, so that the gas accumulation is avoided, the application range is further enlarged, and the safety is better.
Drawings
FIG. 1 is an assembly diagram of a front-mounted wind-splitting intelligent dust control device for a coal mine;
FIG. 2 is a schematic diagram of a right side view of a front-mounted wind-splitting intelligent dust control device for a coal mine;
FIG. 3 is a schematic diagram of a front side view of a front-mounted wind-splitting intelligent dust control device for a coal mine;
FIG. 4 is a schematic top view of a front-mounted wind-splitting intelligent dust control device for a coal mine;
FIG. 5 is a schematic diagram of the axial air outlet gear transmission of the front-mounted air-splitting intelligent dust control device for the coal mine;
FIG. 6 is a flow chart of a method for intelligently controlling dust by front-end wind splitting of a coal mine.
1-roadway; 2-a fully-mechanized excavating machine; 3-an exhaust port; 4-a wind separator body; 5-a wet dust removal fan; 6-an air pressing cylinder; 7-a gas concentration sensor; 401-a main body outer tube of the wind separator; 402-an axial air outlet adjusting device; 403-inner tube of the main body of the air distributor; 404-an air quantity adjusting plate; 405-an air quantity control fixing plate; 406-a bolt; 407-wind-dividing bending plate; 408-an axial air outlet; 409-radial air outlet; 410-a drive gear; 411-rack-shaped limit opening.
Detailed Description
The following description of the embodiments of the invention will be given with reference to the accompanying drawings and examples:
with reference to fig. 1-6, a front-mounted air-distributing intelligent dust control device for a coal mine is arranged in a roadway 1, and a fully-mechanized coal mining machine 2 and an air compressing cylinder 6 are arranged in the roadway 1. The front-mounted wind-dividing intelligent dust control device for the coal mine comprises a wind divider main body 4, a wet dust-removing fan 5 and a gas concentration sensor 7, wherein the wet dust-removing fan is arranged above a fully-mechanized coal mining machine, the gas concentration sensor is suspended above a head-on top plate, and the wind divider main body 4 is made of common flexible wind tube cloth, iron sheets or plastics and is suspended on the top plate of a roadway through iron wires. The air distributor main body 4 is mounted at the front end of the air pressure cylinder 6, and comprises an air distributor main body outer pipe 401 and an air distributor main body inner pipe 403 which are connected through bolts 406, and the relative positions of the air distributor main body outer pipe 401 and the air distributor main body inner pipe 403 can be changed through adjusting bolts.
The inside of the outer pipe 401 of the wind separator main body is provided with a wind-dividing bending plate 407 with an embedded structure, the inner pipe 403 of the wind separator main body is provided with a gap, the gap is matched with the wind-dividing bending plate 407, the inner pipe 403 of the wind separator main body can move along the wind-dividing bending plate 407 to form different radial wind-out angles, the inner pipe 403 of the wind separator main body and the outer pipe 401 of the wind separator main body are respectively provided with 3-6 holes, the wind-dividing bending plate 407 is matched with the inner pipe 403 of the wind separator main body to change the radial wind flow direction, and the radial rotational flow direction is further regulated according to the size of a field roadway and the arrangement of equipment so as to achieve a better dust control effect.
One end opening of the outer tube 401 of the air distributor body is used as a radial air outlet 409, the inner tube 403 of the air distributor body is arranged at the radial air outlet 409, the other end opening of the outer tube 401 of the air distributor body is connected with the front end of the air pressing port of the air pressing cylinder 6, the effective air outlet area of the radial air outlet occupies 70% -90% of the sectional area of the air pressing cylinder, and the ratio of the radial air outlet to the axial air outlet is 6:4-9:1.
The outer tube 401 of the air distributor main body is provided with transverse stripe holes serving as axial air outlets 408, axial air outlet adjusting devices 402, air quantity adjusting plates 404 and air quantity control fixing plates 405 are arranged at the axial air outlets 408, and air quantity control is achieved by adjusting the relative positions of the air quantity adjusting plates 404 and the air quantity control fixing plates 405.
The outer pipe 401 of the wind separator body is a 90-120 DEG bent pipe, one end of the bent pipe is connected with a wind pressing port, the other end of the bent pipe is a radial wind outlet 409, a gap is formed at a bent plate at the radial wind outlet 409, the inner pipe 403 of the wind separator body can be inserted into the upper wall of the outer pipe of the wind separator body, the upper wall of the outer pipe of the wind separator body is linearly and uniformly perforated along the inner bent plate, the position of the inner pipe 403 of the wind separator body is changed by matching with the position of the inner pipe 403 of the wind separator body perforated at the same position, the radial wind outlet 409 is of an inner and outer duplex bent pipe structure through bolts 406, the wind separator outer pipe 401 and the wind separator inner pipe 403 are respectively perforated and fixed through bolts 406, the installation steps are simple and portable, and when excessive dust escapes in the front of a head-on direction can be changed in time, the spraying direction of the radial wind outlet 409 can be timely changed, so that the best dust control and removal effect can be achieved.
The radial air outlet 409 and the axis of the air compressing cylinder 6 form an angle ranging from 70 degrees to 100 degrees, so that good radial air outlet air flow can be generated and effectively split into two air flows, namely forward air flow and backward air flow, the backward air flow can form rotational flow air under the action of an attached wall, the back roadway is full of dead angles, and fresh air flow is provided; the forward wind flow effectively prevents the forward dirty wind flow from diffusing backwards under the action of the attached wall, so that a better dust-blocking air curtain is formed.
The axial air outlet adjusting device 402 is welded on two sides of the air quantity control fixed plate 405, three transverse stripe holes which are uniformly arranged and equally spaced are formed in the air quantity control fixed plate 405, the stripe holes are 0.8-1.2 m long and 0.04-0.06 m wide, the open pore area accounts for about 30% -50% of the sectional area of the compressed air cylinder, an air quantity adjusting plate 404 which slides up and down is arranged in an interlayer of the air quantity control fixed plate 405, and the stripe holes on the air quantity adjusting plate 404 are identical with the air quantity control fixed plate 405; rack-shaped limiting ports for controlling positions are respectively arranged on two sides of the air quantity adjusting plate 404; the axial air outlet adjusting device 402 contains a servo motor, a battery and a transmission gear, and the relative position relationship between the transmission gear and the rack-shaped limiting opening is adjusted by electric power rotation, so that the overlapping area of the air quantity adjusting plate 404 and the air quantity control fixing plate 405 is changed, and the axial air quantity flowing to the head-on is changed.
The diameters of the outer tube of the air distributor main body and the inner tube of the air distributor main body are 0.55-1.0 m.
The intelligent dust control method for front-mounted air separation of the coal mine adopts the device, the gas concentration in a head-on area is monitored in real time through the gas concentration sensor 7, along with the advance of a tunneling surface, the concentration measured by the gas concentration sensor 7 is transmitted to an axial air outlet adjusting device through underground wireless data, a wireless communication chip, a PLC microprocessor and a battery are arranged in the axial air outlet adjusting device 402, the PLC microprocessor is used for judging whether the gas concentration exceeds the limit or not so as to drive a motor to operate, and a rotating gear is used for realizing intelligent adjustment of axial air quantity by changing the position of an air quantity adjusting plate;
when the gas concentration is normal, the motor does not act, the air quantity adjusting state is unchanged, the axial air quantity is kept in a smaller state, head-on dust dissipation caused by excessive air quantity is avoided, radial air flows flow out along the radial air outlet, the air flows flowing to the wall surface of the roadway on the other side form a rotational flow air curtain for preventing the dust from diffusing backwards under the coanda effect, and meanwhile, part of the air flows move backwards to provide fresh air flows for human respiration;
when the gas concentration exceeds the standard, the position of the air quantity adjusting plate 404 is intelligently controlled, the axial air quantity is increased, and the gas accumulated in front of the head is rapidly diluted.
Compared with the traditional wall-attached air duct dust control method, the traditional wall-attached air duct dust control method has the advantages that the wall-attached air duct position needs to be detached from the middle, the front air duct pressing wall-attached air duct position is exchanged, and a pressure air duct is connected successively, so that 2-3 people are required to operate simultaneously, and the workload is high; the effect is better 20-30 m away from the head-on, the effective dust control distance range is smaller, the dust control stability is general, and the comprehensive dust control efficiency is lower than 85%; the air distribution quantity cannot be adjusted according to the concentration of the real-time gas, the accumulation of the gas is difficult to avoid, and the method is often only used for low-gas mines and has a small application range.
By using the device and the method, the radial wind-dividing air quantity and the air direction of the shaft can be intelligently adjusted according to the head-on gas concentration and the dust dissipation condition, the workload of replacing the wind barrel can be only 1 person, and the workload is small; because the front-mounted air distributor is positioned at a front position, the effect is better by 10-30 m from the head-on, the effective dust control and removal range is doubled, the dust control and removal stability is better, and the comprehensive dust control and removal efficiency is higher than 97%; the gas concentration sensor can be used for monitoring the gas concentration in real time to adjust the air distribution quantity, so that the gas accumulation is avoided, the application range is further enlarged, and the safety is better.
List one
It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that the invention is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the invention.
Claims (10)
1. The device is arranged in a roadway, a fully-mechanized coal mining machine and a wind pressing cylinder are arranged in the roadway, and is characterized by comprising a wind separator main body, a wet dust removal fan and a gas concentration sensor, wherein the wind separator main body is arranged at the front end of the wind pressing cylinder and comprises a wind separator main body outer pipe and a wind separator main body inner pipe, a wind separation bent plate with an embedded structure is arranged in the wind separator main body outer pipe, an opening at one end of the wind separator main body outer pipe is used as a radial air outlet, the wind separator main body inner pipe is arranged at the radial air outlet, and the opening at the other end of the wind separator main body outer pipe is connected with the front end of the wind pressing cylinder; the outer tube of the main body of the air distributor is provided with a transverse stripe hole as an axial air outlet, an axial air outlet adjusting device, an air quantity adjusting plate and an air quantity control fixing plate are arranged at the axial air outlet, and the air quantity control is realized by adjusting the relative positions of the air quantity adjusting plate and the air quantity control fixing plate.
2. The intelligent dust control device for front-end wind splitting of a coal mine as claimed in claim 1, wherein the outer pipe of the wind splitting body and the inner pipe of the wind splitting body are connected through bolts, and the relative positions of the outer pipe of the wind splitting body and the inner pipe of the wind splitting body can be changed through adjusting bolts.
3. The intelligent dust control device for front-end wind splitting of a coal mine as claimed in claim 1, wherein the inner tube of the wind splitting device body is provided with a gap, the gap is matched with the wind splitting bent plate, the inner tube of the wind splitting device body can move along the wind splitting bent plate to form different radial wind outlet angles, the inner tube of the wind splitting device body and the outer tube of the wind splitting device body are respectively provided with 3-6 holes, and the wind splitting bent plate is matched with the inner tube of the wind splitting device body to realize the change of the radial wind flow direction.
4. The intelligent dust control device for front-mounted air separation of coal mine as claimed in claim 1, wherein the main body of the air separator is connected to the front end of the air pressing opening of the air pressing cylinder, the effective air outlet area of the radial air outlet accounts for 70% -90% of the sectional area of the air pressing cylinder, and the ratio of the radial air outlet to the axial air outlet is 6:4-9:1.
5. The intelligent dust control device for front-end wind splitting of coal mine as claimed in claim 1, wherein the outer tube of the wind splitting device body is a 90-120 DEG bent tube, one end of the bent tube is connected with a wind pressing port, the other end of the bent tube is a radial wind outlet, a gap is formed in a bent plate at the radial wind outlet, the bent plate can be inserted into the inner tube of the wind splitting device body, the upper wall of the outer tube of the wind splitting device body is uniformly perforated linearly along the built-in bent plate so as to be matched with the inner tube of the wind splitting device body perforated at the same position to change the position, and the bent plate is fixed through bolts.
6. The intelligent dust control device for front-mounted air separation of coal mine as claimed in claim 1, wherein the axial air outlet adjusting device is welded at two sides of the air quantity control fixed plate, three transverse stripe holes which are uniformly arranged and equally spaced are formed in the air quantity control fixed plate, the stripe holes are 0.8-1.2 m long and 0.04-0.06 m wide, the open pore area accounts for about 30% -50% of the sectional area of the air compressing cylinder, the air quantity control fixed plate is internally provided with an air quantity adjusting plate which slides up and down, and the stripe holes on the air quantity adjusting plate are identical with the air quantity control fixed plate; rack-shaped limiting ports for controlling positions are respectively arranged on two sides of the air quantity adjusting plate; the axial air outlet adjusting device comprises a servo motor, a battery and a transmission gear, wherein the transmission gear is rotated by electric power to adjust the relative position relation between the rack-shaped limiting opening, the overlapping area of the air quantity adjusting plate and the air quantity control fixing plate is changed, and then the axial air quantity flowing to the head-on is changed.
7. The intelligent dust control device for front-end wind splitting of a coal mine as claimed in claim 1, wherein the diameters of the outer tube of the wind splitter main body and the inner tube of the wind splitter main body are respectively 0.55-1.0 m.
8. The intelligent dust control device for front-end wind separation of coal mine as claimed in claim 1, wherein the wet dust removal fan is arranged above the fully-mechanized coal mining machine, and the gas concentration sensor is suspended above the head-on top plate.
9. The intelligent dust control device for front-end wind splitting of a coal mine as claimed in claim 1, wherein the wind splitter is made of common flexible wind pipe cloth, iron sheet or plastic and is hung on a roadway roof through iron wires.
10. The intelligent dust control method for front-end air separation of the coal mine is characterized in that the device according to any one of claims 1-9 is adopted, the gas concentration in a head-on area is monitored in real time through a gas concentration sensor, the concentration measured by the gas concentration sensor is transmitted to an axial air outlet adjusting device through underground wireless data along with the advance of a tunneling surface, a wireless communication chip, a PLC microprocessor and a battery are arranged in the axial air outlet adjusting device, the PLC microprocessor is used for judging whether the gas concentration exceeds the limit or not so as to drive a motor to operate, and a rotating gear is used for realizing intelligent adjustment of axial air quantity by changing the position of an air quantity adjusting plate;
when the gas concentration is normal, the motor does not act, the air quantity adjusting state is unchanged, the axial air quantity is kept in a smaller state, head-on dust dissipation caused by excessive air quantity is avoided, radial air flows flow out along the radial air outlet, the air flows flowing to the wall surface of the roadway on the other side form a rotational flow air curtain for preventing the dust from diffusing backwards under the coanda effect, and meanwhile, part of the air flows move backwards to provide fresh air flows for human respiration;
when the concentration of the gas exceeds the standard, the position of the air quantity adjusting plate is intelligently controlled, the axial air quantity is increased, and the gas accumulated in front of the head is rapidly diluted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310241389.8A CN116291683A (en) | 2023-03-14 | 2023-03-14 | Intelligent dust control device and method for front-mounted air distribution of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310241389.8A CN116291683A (en) | 2023-03-14 | 2023-03-14 | Intelligent dust control device and method for front-mounted air distribution of coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116291683A true CN116291683A (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310241389.8A Pending CN116291683A (en) | 2023-03-14 | 2023-03-14 | Intelligent dust control device and method for front-mounted air distribution of coal mine |
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| Country | Link |
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| CN (1) | CN116291683A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116877708A (en) * | 2023-09-06 | 2023-10-13 | 中煤科工集团沈阳研究院有限公司 | Wind distributor and comprehensive digging working face efficient dust catching system |
| CN117027904A (en) * | 2023-08-24 | 2023-11-10 | 中国矿业大学 | Device and method for controlling dust flow uniformly in air duct |
-
2023
- 2023-03-14 CN CN202310241389.8A patent/CN116291683A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117027904A (en) * | 2023-08-24 | 2023-11-10 | 中国矿业大学 | Device and method for controlling dust flow uniformly in air duct |
| CN117027904B (en) * | 2023-08-24 | 2024-01-26 | 中国矿业大学 | Method for controlling dust flow of air duct |
| CN116877708A (en) * | 2023-09-06 | 2023-10-13 | 中煤科工集团沈阳研究院有限公司 | Wind distributor and comprehensive digging working face efficient dust catching system |
| CN116877708B (en) * | 2023-09-06 | 2023-11-28 | 中煤科工集团沈阳研究院有限公司 | Wind distributor and comprehensive digging working face efficient dust catching system |
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