CN114198132B - Efficient dust removal system for underground coal mine tunneling working face - Google Patents
Efficient dust removal system for underground coal mine tunneling working face Download PDFInfo
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- CN114198132B CN114198132B CN202111614866.8A CN202111614866A CN114198132B CN 114198132 B CN114198132 B CN 114198132B CN 202111614866 A CN202111614866 A CN 202111614866A CN 114198132 B CN114198132 B CN 114198132B
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- 239000000428 dust Substances 0.000 title claims abstract description 165
- 230000005641 tunneling Effects 0.000 title claims abstract description 41
- 239000003245 coal Substances 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 238000005507 spraying Methods 0.000 claims abstract description 45
- 238000004887 air purification Methods 0.000 claims abstract description 27
- 239000010410 layer Substances 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 12
- 239000011241 protective layer Substances 0.000 claims abstract description 8
- 239000010865 sewage Substances 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract 2
- 238000004140 cleaning Methods 0.000 claims description 83
- 238000005065 mining Methods 0.000 claims description 26
- 230000007246 mechanism Effects 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000003595 mist Substances 0.000 claims description 7
- 238000005453 pelletization Methods 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 2
- 238000005202 decontamination Methods 0.000 claims description 2
- 230000003588 decontaminative effect Effects 0.000 claims description 2
- 108091006146 Channels Proteins 0.000 claims 10
- 102000010637 Aquaporins Human genes 0.000 claims 1
- 108010063290 Aquaporins Proteins 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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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
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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
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
-
- 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 relates to the technical field of underground construction of coal mines, in particular to a high-efficiency dust removal system of an underground tunneling working face of the coal mine, which comprises air purification staff passages arranged on the return air side of the tunneling working face, wherein the air purification staff passages are used for allowing workers to go in and go out, dust removal protective layers are respectively formed by enclosing dust catching net structures on two sides of the air purification staff passages, water curtain spraying devices are arranged on the dust removal protective layers, the water curtain spraying devices are used for removing dust on the dust removal protective layers and discharging the dust in the form of sewage through a drainage system, and dust-proof doors are arranged on the return air side at the tail ends of the air purification staff passages. The dust-collecting protection layer adopts the primary dust-collecting net and the fine dust-collecting net to realize double-layer dust collection when the system carries out dust collection and purification, thereby effectively ensuring the dust collection well; meanwhile, the fine dust catching net can prevent splashed particles from entering the air purifying staff channel.
Description
Technical Field
The invention relates to the technical field of underground coal mine construction, in particular to a system structure capable of realizing efficient dust fall and dust removal during construction of an underground coal mine tunneling working face, and particularly relates to an efficient dust removal system of the underground coal mine tunneling working face.
Background
Since most of coal mines are buried underground in the mining process, an underground mining mode is required, and the difficulty of underground mining technology is much higher than that of general surface mining. In underground mining, the tunneling working face occupies an important position in the construction process of coal mining, and plays an important role in normal coal mining.
Specifically, when the working face is prepared for the stoping working face, a roadway is mined firstly, and the roadway comprises the functions of coal detection, coal digging, water detection, gas detection and the like, namely, a single-ended roadway which mainly uses tunneling and is assisted by other geological conditions is provided, an autonomous ventilation system is not provided, a channel which directly leads to the ground is not provided, and the top and two sides of the roadway are required to be supported, namely mechanical tunneling and blasting tunneling are generally carried out.
Due to the characteristics of the tunneling working face, the environment of the tunnel air return side of the position where the tunneling working face is located can bring a large amount of dust at the working position to the air return side due to tunneling construction and wind direction flowing (such as the dust state in coal tunneling exploitation shown in fig. 1); meanwhile, the situation of splashing particles (such as the particle splashing animation demonstration schematic diagram in the coal tunneling process shown in fig. 2) also exists, and the severe environment has a certain potential safety hazard for constructors, and the particle splashing also causes additional collision risks.
How to improve the safety of the tunneling working face has important significance for efficiently completing coal mining work, so the invention designs a system structure for realizing push type efficient dust removal aiming at the tunneling working face, and aims to better solve the problems in the prior art.
Disclosure of Invention
The invention aims to solve one of the technical problems, and adopts the following technical scheme: the utility model provides a colliery is high-efficient dust pelletizing system of tunnelling working face in pit, including installing the air purification staff passageway at the return air side of tunnelling working face, the air purification staff passageway is used for supplying the staff to come in and go out, the both sides of air purification staff passageway are enclosed by the dust catching net structure respectively and are kept off and form the dust removal inoxidizing coating, each all install water curtain atomizer on the dust removal inoxidizing coating, water curtain atomizer is used for cleaing away the dust on the dust removal inoxidizing coating and is discharged with the form of sewage by drainage system the dust gate is installed to the terminal return air side of air purification staff passageway.
In any of the above schemes, preferably, the dust-removing protective layer comprises two primary dust-collecting nets and a fine dust-collecting net which are arranged at intervals, the primary dust-collecting net is arranged on one side close to the tunneling working face, the fine dust-collecting net is arranged on one side close to the air-purifying staff passage, and the water curtain spraying device at the corresponding position is arranged on the passage frame for fixing the primary dust-collecting net and the fine dust-collecting net.
In any of the above aspects, preferably, the fine dust-catching net has a mesh aperture smaller than that of the primary dust-catching net.
In any of the above-mentioned schemes, preferably, the water curtain spraying device includes a horizontal water supply pipe fixedly installed on the channel frame, the horizontal water supply pipe is connected with an underground water source through a pipeline configured with a pump body, the horizontal water supply pipe is arranged along the length direction of the air purifying staff channel, a plurality of water curtain spraying nozzles are sequentially and uniformly arranged at intervals at the bottom of the horizontal water supply pipe in the interval space between the primary dust collecting net and the fine dust collecting net along the length direction of the air purifying staff channel, and each water curtain spraying nozzle is matched to realize dust falling and decontamination on the primary dust collecting net and the fine dust collecting net on two sides of the water curtain spraying nozzle.
In any of the above aspects, it is preferable that a reciprocating cleaning mechanism for cleaning both surfaces of the primary dust-collecting net and the fine dust-collecting net is installed in the passage frame, and the reciprocating cleaning mechanism is used for cleaning dust or small particles on the surfaces of the primary dust-collecting net and the fine dust-collecting net.
In any of the above schemes, preferably, the lower part of the channel frame is fixedly arranged at the top of a drainage underdrain, the water mist sprayed by the water curtain spraying device flows into the drainage underdrain to flow outwards after the primary dust catching net and the fine dust catching net are cleaned, and the outlet end of the drainage underdrain is connected with a mine drainage system.
In any of the above solutions, preferably, the reciprocating cleaning mechanism includes driving pulleys and driving pulleys movably mounted on upper and lower end surfaces of two end surfaces of the channel frame, the driving pulleys are connected by a horizontal lower transmission shaft, the driving pulleys are connected by a horizontal upper transmission shaft, the driving pulleys and the driving pulleys corresponding to the ends are respectively in cooperation transmission through mine wear-resistant belts, a mine stepping motor connected with the driving pulleys is fixedly mounted on the outer side of one driving pulley, an inner lifting cleaner is detachably and fixedly mounted on the lower parts of the two mine wear-resistant belts close to one side of the fine dust-catching net, the inner lifting cleaner is used for cleaning the fine dust-catching net from bottom to top, an outer lifting cleaner is detachably and fixedly mounted on the upper parts of the two mine wear-resistant belts close to one side of the primary dust-catching net, and the inner lifting cleaner is used for cleaning the primary dust-catching net from top to bottom.
In any of the above schemes, preferably, the inner lifting cleaner comprises an inner lifting frame which is detachably and fixedly arranged on the outer side wall of the lower parts of the two mining wear-resistant belts close to one side of the fine dust catching net, an inner durable cleaning brush is arranged on the inner lifting frame, and the working end of the inner durable cleaning brush is abutted against the fine dust catching net.
In any of the above schemes, preferably, the outer lifting cleaner comprises an outer lifting frame which is detachably and fixedly arranged on the outer side wall of the upper parts of the two mining wear-resistant belts close to one side of the primary dust catching net, an outer durable cleaning brush is arranged on the outer lifting frame, and the working end of the outer durable cleaning brush is abutted against the primary dust catching net.
Compared with the prior art, the invention has the advantages that:
1. the system builds an air purification staff passage on the air return side of the tunneling working face, realizes efficient dust removal of the tunneling working face, and provides a good working environment for staff.
2. The dust-collecting protection layer adopts the primary dust-collecting net and the fine dust-collecting net to realize double-layer dust collection when the system carries out dust collection and purification, thereby effectively ensuring the dust collection well; meanwhile, the fine dust catching net can prevent splashed particles from entering the air purifying staff channel.
3. The system is provided with a mechanical cleaning mechanism for cleaning dust, and a water curtain spraying device is arranged to realize spraying and dust fall, so that the cleaning is convenient, secondary dust in the cleaning process is reduced, the air quality in a passage of an air purifying staff is effectively ensured, the normal passing of the staff is ensured, and the environmental quality is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or features are generally identified by like reference numerals throughout the drawings. In the drawings, the elements or components are not necessarily drawn to scale.
Fig. 1 shows dust raising state of a working part during coal excavation mining in the prior art.
FIG. 2 is a schematic diagram showing a particle splash animation during coal tunneling in the prior art.
Fig. 3 is a schematic top cross-sectional view of the present invention.
Fig. 4 is a schematic view of a part of a cross-sectional structure of the dust-removing protection layer and the belt driving member inside the dust-removing protection layer.
In the figure, 1, an air purifying staff passage; 2. a dust-removing protective layer; 201. a primary dust catching net; 202. fine dust catching net; 3. a water curtain spraying device; 301. a horizontal water supply pipe; 302. a water curtain spray nozzle; 4. a dust-proof door; 5. a drive pulley; 6. a driving pulley; 7. a horizontal lower drive shaft; 8. a horizontal upper transmission shaft; 9. a mining wear-resistant belt; 10. a mining stepper motor; 11. an inner lifting cleaner; 1101. an inner lifting frame; 1102. an inside durable cleaning brush; 12. an outside lifting cleaner; 1201. an outer lifting frame; 1202. a durable cleaning brush on the outer side; 13. drainage underdrain; 14. and a channel frame.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention. The specific structure of the invention is shown in figures 1-4.
Example 1:
the utility model provides a colliery is high-efficient dust pelletizing system of tunnelling working face in pit, including installing the air purification staff passageway 1 at the return air side of tunnelling working face, air purification staff passageway 1 is used for supplying the staff to come in and go out, the both sides of air purification staff passageway 1 are enclosed by the dust catching net structure respectively and are formed dust removal inoxidizing coating 2, each on dust removal inoxidizing coating 2 all install water curtain atomizer 3, water curtain atomizer 3 is used for cleaing away the dust on the dust removal inoxidizing coating 2 and is discharged with sewage form by drainage system the dust gate 4 is installed to the return air side of the terminal of air purification staff passageway 1.
The whole system is arranged on the air return side of the tunneling working face, so that dust on the tunneling working face can be captured, cleaned and discharged in time, and a good air environment is provided for workers to walk on the tunneling working face.
The dust collection and catching of the dust on the return air side of the tunneling working face is realized by utilizing the dust collection and protection layer 2, then the dust fall is realized by utilizing the water curtain spraying device 3, and finally the dust is discharged in the form of sewage by the underground drainage system, so that the good environment in the air purification staff channel 1 is ensured.
In any of the above solutions, it is preferable that the dust-removing protective layer 2 includes two primary dust-collecting nets 201 and fine dust-collecting nets 202 disposed at intervals, the primary dust-collecting nets 201 are disposed near a tunneling working face side, the fine dust-collecting nets 202 are disposed near an air-purifying employee's passage 1 side, and the water curtain spraying devices 3 at corresponding positions are mounted on the passage frames 14 for fixing the primary dust-collecting nets 201 and the fine dust-collecting nets 202.
The two sides of the primary dust catching net 201 and the fine dust catching net 202 are used for protecting dust catching structures, and one of the two main functions is as follows: the primary dust catching net 201 can be utilized to carry out primary catching relative to dust, and the fine dust catching net 202 can be utilized to carry out secondary catching, so that the dust catching capacity is improved; secondly, set up both sides and catch dirt net and all can regard as protective structure, prevent effectively that the particulate matter that splashes from getting into air purification staff passageway 1 and causing unexpected injury to the workman who passes through in the tunneling working, holistic installation protectiveness is better.
In any of the above solutions, it is preferable that the water curtain spraying device 3 includes a horizontal water supply pipe 301 fixedly installed on the channel frame 14, the horizontal water supply pipe 301 is connected with a downhole water source through a pipeline configured with a pump body, the horizontal water supply pipe 301 is disposed along a length direction of the air purifying employee channel 1, a plurality of water curtain spraying nozzles 302 are sequentially and uniformly disposed at intervals along the length direction of the air purifying employee channel 1 at a bottom of the horizontal water supply pipe 301 in an interval space between the primary dust capturing net 201 and the fine dust capturing net 202, and each water curtain spraying nozzle 302 cooperates to implement dust and dirt reduction on the primary dust capturing net 201 and the fine dust capturing net 202 on two sides of the water curtain spraying nozzle 302.
The main function of the water curtain spraying device 3 is to spray water mist on the primary dust catching net 201 and the fine dust catching net 202 at two sides by starting an external water pump to control the water curtain spraying nozzle 302, so that dust catching and cleaning effects on dust caught on the water curtain spraying device are achieved, and finally, the left water flow can be discharged by the drainage underdrain 13, so that dust emission is reduced.
In any of the above aspects, it is preferable that a reciprocating cleaning mechanism for simultaneously cleaning the surfaces of the primary dust-catching net 201 and the fine dust-catching net 202 is installed in the passage frame 14, and the reciprocating cleaning mechanism is used for cleaning the dust or small particles on the surfaces of the primary dust-catching net 201 and the fine dust-catching net 202.
The main function of the reciprocating cleaning mechanism is to drive the cleaning parts thereon to run, so that dust or small particles on the surfaces of the primary dust catching net 201 and the fine dust catching net 202 are cleaned at the same time, and the cleaning efficiency and effect are ensured.
In any of the above solutions, it is preferable that the reciprocating cleaning mechanism includes driving pulleys 5 and driving pulleys 6 movably mounted on upper and lower end surfaces of two end surfaces of the channel frame 14, the driving pulleys 6 are connected by a horizontal lower transmission shaft 7, the driving pulleys 5 are connected by a horizontal upper transmission shaft 8, the driving pulleys 5 and the driving pulleys 6 corresponding to the respective end parts are respectively driven in a matched manner by mine wear-resistant belts 9, a mine stepper motor 10 connected with the driving pulleys 6 is fixedly mounted on the outer side of one of the driving pulleys 6, an inner side lifting cleaner 11 is detachably and fixedly mounted on the lower parts of the two mine wear-resistant belts 9 near one side of the fine dust-catching net 202, the inner side lifting cleaner 11 is used for cleaning the fine dust-catching net 202 from bottom to top, an outer side lifting cleaner 12 is detachably and fixedly mounted on the upper parts of the two mine wear-resistant belts 9 near one side of the primary dust-catching net 201, and the inner side lifting cleaner 11 is used for cleaning the primary dust-catching net 201 from top to bottom.
The reciprocating cleaning mechanism adopts mining parts, so that the service life of the whole mechanism can be effectively prolonged, the mining stepping motor 10 is used as a cleaning driving motor in the reciprocating cleaning mechanism, and the operation of a belt transmission part can be conveniently controlled, so that the inner lifting cleaner 11 and the outer lifting cleaner 12 can be driven to realize lifting movement, cleaning of dust on the corresponding sides is completed, and proper spraying can be matched in the cleaning process, so that the problem of secondary dust raising in the cleaning process can be effectively solved.
The reciprocating cleaning mechanism can simultaneously finish the simultaneous cleaning of the primary dust catching net 201 and the fine dust catching net 202, the cleaning efficiency is higher, and the single power drives the inner lifting cleaner 11 and the outer lifting cleaner 12 on two sides to move for working, so that the convenience in maintenance can be ensured.
Example 2:
the utility model provides a colliery is high-efficient dust pelletizing system of tunnelling working face in pit, including installing the air purification staff passageway 1 at the return air side of tunnelling working face, air purification staff passageway 1 is used for supplying the staff to come in and go out, the both sides of air purification staff passageway 1 are enclosed by the dust catching net structure respectively and are formed dust removal inoxidizing coating 2, each on dust removal inoxidizing coating 2 all install water curtain atomizer 3, water curtain atomizer 3 is used for cleaing away the dust on the dust removal inoxidizing coating 2 and is discharged with sewage form by drainage system the dust gate 4 is installed to the return air side of the terminal of air purification staff passageway 1.
The whole system is arranged on the air return side of the tunneling working face, so that dust on the tunneling working face can be captured, cleaned and discharged in time, and a good air environment is provided for workers to walk on the tunneling working face.
The dust collection and catching of the dust on the return air side of the tunneling working face is realized by utilizing the dust collection and protection layer 2, then the dust fall is realized by utilizing the water curtain spraying device 3, and finally the dust is discharged in the form of sewage by the underground drainage system, so that the good environment in the air purification staff channel 1 is ensured.
In any of the above solutions, it is preferable that the dust-removing protective layer 2 includes two primary dust-collecting nets 201 and fine dust-collecting nets 202 disposed at intervals, the primary dust-collecting nets 201 are disposed near a tunneling working face side, the fine dust-collecting nets 202 are disposed near an air-purifying employee's passage 1 side, and the water curtain spraying devices 3 at corresponding positions are mounted on the passage frames 14 for fixing the primary dust-collecting nets 201 and the fine dust-collecting nets 202.
The two sides of the primary dust catching net 201 and the fine dust catching net 202 are used for protecting dust catching structures, and one of the two main functions is as follows: the primary dust catching net 201 can be utilized to carry out primary catching relative to dust, and the fine dust catching net 202 can be utilized to carry out secondary catching, so that the dust catching capacity is improved; secondly, set up both sides and catch dirt net and all can regard as protective structure, prevent effectively that the particulate matter that splashes from getting into air purification staff passageway 1 and causing unexpected injury to the workman who passes through in the tunneling working, holistic installation protectiveness is better.
In any of the above aspects, it is preferable that the mesh aperture of the fine dust catching net 202 is smaller than the mesh aperture of the primary dust catching net 201.
In any of the above solutions, it is preferable that the water curtain spraying device 3 includes a horizontal water supply pipe 301 fixedly installed on the channel frame 14, the horizontal water supply pipe 301 is connected with a downhole water source through a pipeline configured with a pump body, the horizontal water supply pipe 301 is disposed along a length direction of the air purifying employee channel 1, a plurality of water curtain spraying nozzles 302 are sequentially and uniformly disposed at intervals along the length direction of the air purifying employee channel 1 at a bottom of the horizontal water supply pipe 301 in an interval space between the primary dust capturing net 201 and the fine dust capturing net 202, and each water curtain spraying nozzle 302 cooperates to implement dust and dirt reduction on the primary dust capturing net 201 and the fine dust capturing net 202 on two sides of the water curtain spraying nozzle 302.
The main function of the water curtain spraying device 3 is to spray water mist on the primary dust catching net 201 and the fine dust catching net 202 at two sides by starting an external water pump to control the water curtain spraying nozzle 302, so that dust catching and cleaning effects on dust caught on the water curtain spraying device are achieved, and finally, the left water flow can be discharged by the drainage underdrain 13, so that dust emission is reduced.
In any of the above aspects, it is preferable that a reciprocating cleaning mechanism for simultaneously cleaning the surfaces of the primary dust-catching net 201 and the fine dust-catching net 202 is installed in the passage frame 14, and the reciprocating cleaning mechanism is used for cleaning the dust or small particles on the surfaces of the primary dust-catching net 201 and the fine dust-catching net 202.
The main function of the reciprocating cleaning mechanism is to drive the cleaning parts thereon to run, so that dust or small particles on the surfaces of the primary dust catching net 201 and the fine dust catching net 202 are cleaned at the same time, and the cleaning efficiency and effect are ensured.
In any of the above solutions, it is preferable that the lower portion of the channel frame 14 is fixedly installed at the top of the one-drain underdrain 13, the water mist sprayed by the water curtain spraying device 3 flows into the one-drain underdrain 13 and flows out after the primary dust catching net 201 and the fine dust catching net 202 are cleaned, and the outlet end of the one-drain underdrain 13 is connected with a mine drainage system.
The whole channel frame 14 is fixedly arranged, the water curtain spraying device 3 on the channel frame can be firmly fixed, and when the water mist sprayed by the water curtain spraying device 3 finishes cleaning the primary dust catching net 201 and the fine dust catching net 202, the water mist flows into the drainage underdrain 13 and flows outwards, so that the whole dust cleaning and pollution discharge operation is finished, and the operation is quick.
In any of the above solutions, it is preferable that the reciprocating cleaning mechanism includes driving pulleys 5 and driving pulleys 6 movably mounted on upper and lower end surfaces of two end surfaces of the channel frame 14, the driving pulleys 6 are connected by a horizontal lower transmission shaft 7, the driving pulleys 5 are connected by a horizontal upper transmission shaft 8, the driving pulleys 5 and the driving pulleys 6 corresponding to the respective end parts are respectively driven in a matched manner by mine wear-resistant belts 9, a mine stepper motor 10 connected with the driving pulleys 6 is fixedly mounted on the outer side of one of the driving pulleys 6, an inner side lifting cleaner 11 is detachably and fixedly mounted on the lower parts of the two mine wear-resistant belts 9 near one side of the fine dust-catching net 202, the inner side lifting cleaner 11 is used for cleaning the fine dust-catching net 202 from bottom to top, an outer side lifting cleaner 12 is detachably and fixedly mounted on the upper parts of the two mine wear-resistant belts 9 near one side of the primary dust-catching net 201, and the inner side lifting cleaner 11 is used for cleaning the primary dust-catching net 201 from top to bottom.
The reciprocating cleaning mechanism adopts mining parts, so that the service life of the whole mechanism can be effectively prolonged, the mining stepping motor 10 is used as a cleaning driving motor in the reciprocating cleaning mechanism, and the operation of a belt transmission part can be conveniently controlled, so that the inner lifting cleaner 11 and the outer lifting cleaner 12 can be driven to realize lifting movement, cleaning of dust on the corresponding sides is completed, and proper spraying can be matched in the cleaning process, so that the problem of secondary dust raising in the cleaning process can be effectively solved.
The reciprocating cleaning mechanism can simultaneously finish the simultaneous cleaning of the primary dust catching net 201 and the fine dust catching net 202, the cleaning efficiency is higher, and the single power drives the inner lifting cleaner 11 and the outer lifting cleaner 12 on two sides to move for working, so that the convenience in maintenance can be ensured.
In any of the above embodiments, it is preferable that the inner lift cleaner 11 includes an inner lift frame 1101 fixedly installed on the lower outer side walls of the two mining wear belts 9 near the side of the fine dust catching net 202, and an inner durable cleaning brush 1102 is installed on the inner lift frame 1101, and the working end of the inner durable cleaning brush 1102 is abutted against the fine dust catching net 202.
In any of the above embodiments, it is preferable that the outer lift cleaner 12 includes an outer lift bracket 1201 detachably and fixedly installed on an upper outer side wall of the two mining wear belts 9 near one side of the primary dust collecting net 201, and an outer durable cleaning brush 1202 is installed on the outer lift bracket 1201, and a working end of the outer durable cleaning brush 1202 is abutted against the primary dust collecting net 201.
The inner durable cleaning brush 1102 and the outer durable cleaning brush 1202 on the inner lifting cleaner 11 and the outer lifting cleaner 12 can be detached and replaced, and can be replaced in time after being damaged, so that the operation is convenient.
The whole system is arranged on the air return side of the tunneling working face, so that dust on the tunneling working face can be captured, cleaned and discharged in time, and a good air environment is provided for workers to walk on the tunneling working face.
The dust collection and catching of the dust on the return air side of the tunneling working face can be realized by utilizing the dust collection and protection layer 2, then the dust fall is realized by utilizing the water curtain spraying device 3, and finally the dust is discharged in the form of sewage by the underground drainage system, so that the good environment in the air purification employee channel 1 is ensured.
The reciprocating cleaning mechanism is matched with the water curtain spraying device 3 to realize rapid cleaning of dust, specifically, the mining stepping motor 10 is used as a cleaning driving motor in the working of the reciprocating cleaning mechanism, and the operation of a belt transmission part can be conveniently controlled, so that the inner lifting cleaner 11 and the outer lifting cleaner 12 can be driven to realize lifting movement, the cleaning of the dust on the corresponding sides is completed, and proper spraying can be matched in the cleaning process, so that the problem of secondary dust raising in the cleaning process is effectively solved.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention and are intended to be within the scope of the appended claims and description; any alternative modifications or variations to the embodiments of the present invention will fall within the scope of the present invention for those skilled in the art.
The present invention is not described in detail in the present application, and is well known to those skilled in the art.
Claims (4)
1. The utility model provides a colliery is high-efficient dust pelletizing system of tunnelling working face in pit which characterized in that: the air purification staff channel is arranged on the air return side of a tunneling working face and used for allowing workers to go in and go out, dust-collecting protection layers are respectively formed by enclosing dust-collecting net structures on two sides of the air purification staff channel, water curtain spraying devices are arranged on the dust-collecting protection layers and used for removing dust on the dust-collecting protection layers and discharging the dust in the form of sewage through a drainage system, and dust-proof doors are arranged on the air return side at the tail end of the air purification staff channel;
the dust-removing protective layer comprises two primary dust-collecting nets and a fine dust-collecting net which are arranged at intervals, the primary dust-collecting net is arranged on one side close to a tunneling working face, the fine dust-collecting net is arranged on one side close to an air purifying employee channel, and the water curtain spraying device at the corresponding position is arranged on a channel frame for fixing the primary dust-collecting net and the fine dust-collecting net;
a reciprocating cleaning mechanism for simultaneously cleaning the surfaces of the primary dust-collecting net and the fine dust-collecting net is arranged in the channel frame, and the reciprocating cleaning mechanism is used for cleaning dust or small particles on the surfaces of the primary dust-collecting net and the fine dust-collecting net;
the reciprocating cleaning mechanism comprises driving pulleys and driving pulleys which are respectively and movably arranged at the upper part and the lower part of the end surfaces of two ends of the channel frame, wherein the two driving pulleys are connected through a horizontal lower transmission shaft, the two driving pulleys are connected through a horizontal upper transmission shaft, the corresponding driving pulleys and driving pulleys at the ends are respectively in matched transmission through mining wear-resistant belts, a mining stepping motor connected with the driving pulleys is fixedly arranged at the outer side of one driving pulley, an inner side lifting cleaner is detachably and fixedly arranged at the lower part of the two mining wear-resistant belts close to one side of the fine dust-catching net, the inner side lifting cleaner is used for cleaning the fine dust-catching net from bottom to top, an outer side lifting cleaner is detachably and fixedly arranged at the upper part of the two mining wear-resistant belts close to one side of the primary dust-catching net, and the inner side lifting cleaner is used for cleaning the primary dust-catching net from top to bottom;
the inner lifting cleaner comprises an inner lifting frame which is detachably and fixedly arranged on the outer side walls of the lower parts of the two mining wear-resistant belts close to one side of the fine dust catching net, an inner durable cleaning brush is arranged on the inner lifting frame, and the working end of the inner durable cleaning brush is abutted against the fine dust catching net;
the outer lifting cleaner comprises an outer lifting frame which is detachably and fixedly arranged on the outer side walls of the upper parts of the two mining wear-resistant belts close to one side of the primary dust catching net, an outer durable cleaning brush is arranged on the outer lifting frame, and the working end of the outer durable cleaning brush is abutted to the primary dust catching net.
2. The efficient dust removal system for a coal mine underground tunneling working face according to claim 1 is characterized in that: the mesh aperture of the fine dust catching net is smaller than the mesh aperture of the primary dust catching net.
3. The efficient dust removal system for a coal mine underground tunneling working face according to claim 2 is characterized in that: the water curtain spraying device comprises a horizontal water supply pipe fixedly installed on the channel frame, the horizontal water supply pipe is connected with an underground water source through a pipeline provided with a pump body, the horizontal water supply pipe is arranged along the length direction of an air purification staff channel, a plurality of water curtain spraying nozzles are sequentially and evenly arranged at intervals at the bottom of the horizontal water supply pipe in the interval space between the primary dust catching net and the fine dust catching net along the length direction of the air purification staff channel, and the water curtain spraying nozzles are matched to realize dust fall and decontamination on the primary dust catching net and the fine dust catching net on two sides of the water curtain spraying nozzles.
4. A high efficiency dust removal system for a coal mine underground excavation face as claimed in claim 3, wherein: the water curtain spraying device is characterized in that the lower part of the channel frame is fixedly arranged at the top of a drainage underdrain, water mist sprayed by the water curtain spraying device flows into the drainage underdrain to flow outwards after the primary dust catching net and the fine dust catching net are cleaned, and the outlet end of the drainage underdrain is connected with a mine drainage system.
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| CN202111614866.8A CN114198132B (en) | 2021-12-23 | 2021-12-23 | Efficient dust removal system for underground coal mine tunneling working face |
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| CN102817628A (en) * | 2012-08-15 | 2012-12-12 | 徐州蓝敏科技有限公司 | Special dust catching net for coal mine |
| CN203321566U (en) * | 2013-06-26 | 2013-12-04 | 陶磊 | Absorption dust catch curtain |
| CN206539366U (en) * | 2017-03-17 | 2017-10-03 | 陈然 | A kind of Mine Dust isolates wall device |
| CN209011867U (en) * | 2018-10-10 | 2019-06-21 | 新汶矿业集团有限责任公司 | A kind of mine efficiently collects spray dedusting and purifying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102817628A (en) * | 2012-08-15 | 2012-12-12 | 徐州蓝敏科技有限公司 | Special dust catching net for coal mine |
| CN203321566U (en) * | 2013-06-26 | 2013-12-04 | 陶磊 | Absorption dust catch curtain |
| CN206539366U (en) * | 2017-03-17 | 2017-10-03 | 陈然 | A kind of Mine Dust isolates wall device |
| CN209011867U (en) * | 2018-10-10 | 2019-06-21 | 新汶矿业集团有限责任公司 | A kind of mine efficiently collects spray dedusting and purifying device |
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