CN113062735A - Air curtain dust removing device and method for shuttle vehicle on driving face - Google Patents
Air curtain dust removing device and method for shuttle vehicle on driving face Download PDFInfo
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- CN113062735A CN113062735A CN202110373752.2A CN202110373752A CN113062735A CN 113062735 A CN113062735 A CN 113062735A CN 202110373752 A CN202110373752 A CN 202110373752A CN 113062735 A CN113062735 A CN 113062735A
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- 239000000428 dust Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims description 14
- 230000005641 tunneling Effects 0.000 claims description 12
- 238000009412 basement excavation Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000003245 coal Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000005065 mining Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010035653 pneumoconiosis Diseases 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
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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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Cleaning In General (AREA)
Abstract
The air curtain dust removing device comprises a shuttle car, wherein an air curtain generating device is arranged at the upper part of the shuttle car, an air flow diffuser is arranged at the front end of the air curtain generating device, and the air flow diffuser is connected with a high-pressure air pipe through an outlet section high-pressure rubber pipe; the air flow diffuser is provided with a plurality of layers of air deflectors at a position close to an outlet, the air deflectors are provided with evenly distributed air guide ports, the air guide ports among the air deflectors are arranged in a staggered mode, high-pressure air flows into the air flow diffuser through high-pressure air, the high-pressure air in the air flow diffuser is reduced in pressure through the first layer of air deflectors and flows out of the first layer of air guide ports, then the high-pressure air flows through the second layer of air deflectors until the last layer of air deflectors, an air curtain is formed at a driver position under the action of the staggered air guide ports, dust at the driver position is scattered, and the dust is scattered along with the movement.
Description
Technical Field
The disclosure belongs to the field of coal mine dust prevention and control, and particularly relates to a device and a method for driving dust by using an air curtain of a driving face shuttle car.
Background
Coal still has no one of main energy sources in China from now to the future, dust hazard gradually becomes one of important hazards in coal mine safety production along with coal mine mining comprehensive and mechanical mining, mine dust can accelerate mechanical abrasion, visibility of roadways is reduced, and respiratory diseases of dust collecting personnel can be caused. The shuttle car is a trackless rubber-tyred vehicle for realizing short-distance rapid transportation in a coal mine, along with the development of tunneling technology, the shuttle car is more and more applied to a tunneling working surface, the main function of the shuttle car is to transfer coal of a continuous coal mining machine to a feeding crusher, a driver of the shuttle car is a main dust collecting person, the dust collecting amount is large, the dust collecting time is long, and therefore the shuttle car is very important for dust prevention and control.
The ventilation and dust removal are the main means for preventing and controlling the dust in the tunneling work at present, and the common ventilation mode is a long-pressing short-pumping type, but researches show that during the operation of a continuous mining machine, high-speed compressed air flow brought by the long-pressing short-pumping type ventilation collides with a tunneling wall surface and carries a large amount of dust to disperse along the way, so that scholars at home and abroad propose a plane air curtain, a rotational flow air curtain and other technologies.
CN201410406960.8 discloses a three-dimensional multidirectional rotational flow air curtain dust settling device and method for a fully mechanized excavation face, the method is characterized in that a dust source is left in a cutting area through the form of an air curtain, and then a dust removing fan is used for pumping out the dust, the method can isolate dust in the cutting area to avoid rearward dispersion of the dust, but a vortex area is easily formed near a tunneling head to cause dust accumulation, although the dust concentration of a local area can be properly reduced through the dust removing fan, a large amount of dust is still left in the cutting area, during work, a shuttle car driver needs to transport coal back and forth, and the dust is circularly moved in the cutting area.
Therefore, the air curtain dust removing device and the air curtain dust removing method for the shuttle car for the tunneling working face are urgent, the device can be used for removing dust around a shuttle car driver, the dust concentration around the shuttle car driver is effectively reduced, the occupational hazards of pneumoconiosis of the shuttle car driver can be prevented and treated, the visual range of the shuttle car driver is increased, the driving safety and the body health of the shuttle car driver are ensured, and the air curtain dust removing device and the air curtain dust removing method for the shuttle car for the tunneling working face have important practical values for the health and safe and efficient mining of the shuttle car driver.
BRIEF SUMMARY OF THE PRESENT DISCLOSURE
Aiming at the defects of the prior art, the disclosed aim is to provide a device and a method for driving dust by using an air curtain of a shuttle car on a tunneling working face, and the problem that dust in the working environment of a shuttle car driver cannot be effectively protected in the prior art is solved.
The purpose of the disclosure can be realized by the following technical scheme:
an air curtain dust removing device of a shuttle car for a driving face comprises the shuttle car, wherein an air curtain generating device is arranged at the upper part of the shuttle car;
the wind flow diffuser is provided with a plurality of layers of wind deflectors at a position close to the outlet, uniformly distributed wind guide openings are arranged on the wind deflectors, and the wind guide openings among the wind deflectors are arranged in a staggered mode.
Furthermore, a vent with the same size as the air flow diffuser is reserved above the shuttle car cab, the air flow diffuser is connected with the outlet section high-pressure rubber pipe, the outlet section high-pressure rubber pipe is connected to the inlet section high-pressure rubber pipe through an automatic winch, and the inlet section high-pressure rubber pipe is connected with the high-pressure air pipe on the side wall of the continuous excavation roadway through a valve and a flowmeter.
Further, the wind current diffuser is connected to the shuttle car cab and is right above the continuous miner seat and the driver position.
Further, the automatic winch can automatically receive and release the high-pressure rubber pipe at the outlet section according to the distance between the shuttle car and the high-pressure rubber pipe at the outlet section.
Further, the wind current diffuser is made of steel and is connected to the shuttle car in the cab through bolts.
Furthermore, fresh air flow is formed in the high-pressure air pipe on the side wall of the continuous excavation roadway;
further, the automatic winch is fixed at a transfer point position connected with the belt.
Further, the dust removing method of the air curtain dust removing device comprises the following using method:
and opening a valve, enabling fresh air flow in the side wall high-pressure air pipe to flow through the outlet section high-pressure rubber pipe from the inlet section high-pressure rubber pipe through the automatic winch, flowing into the air flow diffuser, enabling the high-pressure air flow in the air flow diffuser to be decompressed through the first layer of air guide plates, flow out of the first layer of air guide holes, then flow through the second layer of air guide plates until reaching the last layer of air guide plates, and forming an air curtain at the position of a driver under the action of the staggered air guide holes to disperse dust at the position of the driver.
The beneficial effect of this disclosure:
the device can effectively reduce the dust inhalation amount of shuttle drivers, and is favorable for preventing and treating the occupational hazards of pneumoconiosis of the shuttle drivers.
The device can increase the sight distance of a shuttle vehicle driver and improve the driving safety of the shuttle vehicle.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic overall structure diagram of an embodiment of the present disclosure;
FIG. 2 is a schematic view of a wind flow diffuser according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
As shown in fig. 1-2, an air curtain dust removing device for a shuttle car for a tunneling working face comprises a shuttle car 2, and an air curtain generating device is arranged at the upper part of the shuttle car, and is characterized in that an air flow diffuser 1 is arranged at the front end of the air curtain generating device, and the air flow diffuser 1 is connected with a high-pressure air pipe 13 through a high-pressure rubber pipe 4 at an outlet section;
the wind flow diffuser 1 is provided with a plurality of layers of wind deflectors 14 close to the outlet, wind guide openings 16 which are uniformly distributed are arranged on the wind deflectors 14, and the wind guide openings 16 among the wind deflectors are arranged in a staggered manner;
furthermore, the method adopts the existing compressed air pipeline on the tunneling working face, is simple and convenient to install and is convenient for field application and operation; by so designing; high-pressure gas flows into the air flow diffuser 1, the high-pressure air flow in the air flow diffuser 1 is decompressed by the first layer of air deflectors and flows out of the first layer of air guiding openings, then passes through the second layer of air deflectors to the last layer of air deflectors, an air curtain is formed at the position of a driver under the action of the staggered air guiding openings 16 to disperse dust at the driver, meanwhile, the flexible connection of the high-pressure rubber tube 4 at the outlet section is utilized to enable the shuttle car 2 to drag the high-pressure rubber tube 4 at the outlet section to move freely for operation, simultaneously, the high-pressure gas continuously flows into the air flow diffuser 1 through the high-pressure rubber tube 4 at the outlet section, the design can ensure the stability of the air curtain on one hand, and avoid noise and load of automobile load power caused by adding a high-pressure gas production device on the shuttle car 2 on the other hand, and meanwhile, the high-pressure gas production device on the shuttle, meanwhile, the staggered air guide openings 16 can reduce the noise of the air curtain.
In some disclosures, a ventilation opening with the same size as that of the wind flow diffuser 1 is reserved above the cab of the shuttle car 2, the wind flow diffuser 1 is connected with the outlet section high-pressure rubber pipe 4, the outlet section high-pressure rubber pipe 4 is connected to the inlet section high-pressure rubber pipe 10 through an automatic winch 5, and the inlet section high-pressure rubber pipe 10 is connected with the high-pressure air pipe 13 on the side wall of the continuous excavation roadway 3 through a valve 11 and a flow meter 12; through such design, can adjust the length of export section high pressure rubber tube 4 through automatic capstan winch 5 and cooperate the effect of shuttle car 2, prevent that the operation of shuttle car 2 from leading to the winding of export section high pressure rubber tube 4, knot, can adjust the intake of wind flow diffuser 1 through valve 11 and flowmeter 12 simultaneously.
In some disclosures, the wind flow diffuser 1 is attached to the shuttle car 2 cab directly above the continuous miner seat 8 and driver 9 locations; through such design, can be better carry out the dust protection to the driver.
In some disclosures, the automatic winch 5 can automatically receive and release the outlet section high-pressure rubber pipe 4 according to the distance between the shuttle car 2 and the outlet section high-pressure rubber pipe 4; through the design, the length of the high-pressure rubber pipe 4 at the outlet section can be matched with the distance of the shuttle car 2, and meanwhile, the labor intensity of workers is reduced.
In some disclosures, the wind flow diffuser 1 is made of steel and is connected to the shuttle car 2 in a cab through bolts 15; through so designing, can guarantee the intensity of wind flow diffuser 1, and convenient to assemble and dismantle.
In some disclosures, fresh air flows in the high-pressure air pipe 13 on the side wall 3 of the continuous excavation roadway are designed to ensure the oxygen content and the dust content of the air in the environment of the air curtain where the driver 9 is located.
In some disclosures, the automatic winch 5 is fixed at a transfer point 6 connected with a belt 7, and by means of the design, the automatic winch 5 can be quickly adjusted through the belt 7.
In some disclosures, the dust removing method of the air curtain dust removing device comprises the following steps:
when the valve is opened, fresh air flow in the side wall high-pressure air pipe 13 flows through the outlet section high-pressure rubber pipe 4 from the inlet section high-pressure rubber pipe 10 through the automatic winch 5 and flows into the air flow diffuser 1, high-pressure air flow in the air flow diffuser 1 is reduced in pressure through the first layer of air guide plates and flows out from the first layer of air guide openings, then flows through the second layer of air guide plates until reaching the last layer of air guide plates, and under the action of the staggered air guide openings, an air curtain is formed at the position of a driver to disperse dust at the position of the driver.
Principle of operation
High-pressure air flows into the air flow diffuser through high-pressure gas, the high-pressure air flow in the air flow diffuser is reduced in pressure through the first layer of air guide plates and flows out of the first layer of air guide openings, then the high-pressure air flow passes through the second layer of air guide plates until the last layer of air guide plates, and under the action of the staggered air guide openings, an air curtain is formed at a driver position to disperse dust at the driver position and move along with the shuttle car driver position to disperse the dust.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing illustrates and describes the general principles, principal features, and advantages of the present disclosure. It will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, which are presented solely for purposes of illustrating the principles of the disclosure, and that various changes and modifications may be made to the disclosure without departing from the spirit and scope of the disclosure, which is intended to be covered by the claims.
Claims (8)
1. A shuttle car air curtain dust removing device for a driving face comprises a shuttle car (2), wherein an air curtain generating device is arranged at the upper part of the shuttle car, and is characterized in that an air flow diffuser (1) is arranged at the front end of the air curtain generating device, and the air flow diffuser (1) is connected with a high-pressure air pipe (13) through an outlet section high-pressure rubber pipe (4);
the wind flow diffuser (1) is provided with a plurality of layers of wind deflectors (14) at positions close to the outlet, wind guide openings (16) which are uniformly distributed are arranged on the wind deflectors (14), and the wind guide openings among the wind deflectors are arranged in a staggered mode.
2. The air curtain dust removing device of the shuttle car for the tunneling working face according to claim 1, wherein a ventilation opening with the same size as the air flow diffuser (1) is reserved above the cab of the shuttle car (2), the air flow diffuser (1) is connected with the high-pressure rubber pipe (4) of the outlet section, the high-pressure rubber pipe of the outlet section is connected to the high-pressure rubber pipe (10) of the inlet section through an automatic winch (5), and the high-pressure rubber pipe (10) of the inlet section is connected with the high-pressure air pipe (13) on the side wall of the continuous excavation roadway (1) through a valve (11) and a flowmeter (12).
3. A driving face shuttle vehicle air curtain dust removal device according to claim 1, wherein the air flow diffuser (1) is connected to the cab of the shuttle vehicle (2) directly above the position of the continuous miner seat (8) and the driver (9).
4. The air curtain dust removing device of the shuttle car for the tunneling working face as claimed in claim 1, wherein the automatic winch (5) can automatically retract and release the high-pressure rubber pipe (4) at the outlet section according to the distance between the shuttle car (2).
5. A driving face shuttle vehicle air curtain dust removal device according to claim 1, wherein the air flow diffuser (1) is made of steel and is connected to the cab of the shuttle vehicle (2) through bolts (15).
6. A driving face shuttle vehicle air curtain dust removing device according to claim 1, characterized in that the high pressure air pipe (13) on the side wall (3) of the continuous excavation roadway is provided with fresh air flow.
7. A driving face shuttle vehicle curtain dust removal device as claimed in claim 1 wherein the automatic winch (5) is fixed at the transfer point (6) connected to the belt (7).
8. A dust removing method using the air curtain dust removing device of claim 2, which comprises the following steps:
the valve is opened, fresh air flow in the side wall high-pressure air pipe (13) flows through the outlet section high-pressure rubber pipe (4) from the inlet section high-pressure rubber pipe (10) through the automatic winch (5) and flows into the air flow diffuser (1), high-pressure air flow in the air flow diffuser (1) is reduced in pressure through the first layer of air guide plates and flows out from the first layer of air guide openings, then flows through the second layer of air guide plates until the last layer of air guide plates, and under the action of the staggered air guide openings, an air curtain is formed at the position of a driver to disperse dust at the position of the driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110373752.2A CN113062735B (en) | 2021-04-07 | 2021-04-07 | Air curtain dust removing device and method for shuttle vehicle on driving face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110373752.2A CN113062735B (en) | 2021-04-07 | 2021-04-07 | Air curtain dust removing device and method for shuttle vehicle on driving face |
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| Publication Number | Publication Date |
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| CN113062735A true CN113062735A (en) | 2021-07-02 |
| CN113062735B CN113062735B (en) | 2022-08-09 |
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| CN202110373752.2A Active CN113062735B (en) | 2021-04-07 | 2021-04-07 | Air curtain dust removing device and method for shuttle vehicle on driving face |
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Citations (8)
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|---|---|---|---|---|
| CN2861485Y (en) * | 2006-01-10 | 2007-01-24 | 刘俏 | Dust pelletizing system for wind curtain dust collection fan in comprehensive digging working face |
| JP2007063912A (en) * | 2005-09-01 | 2007-03-15 | Onoda Chemico Co Ltd | Installation method of hose for injection of filling material into existing embedded pipe |
| US20170203636A1 (en) * | 2016-01-15 | 2017-07-20 | Joy Mm Delaware, Inc. | Debris barrier for vehicle operator cab |
| CN106996304A (en) * | 2017-04-19 | 2017-08-01 | 淮北矿业股份有限公司 | Underworkings sprinkling truck |
| CN107100628A (en) * | 2017-06-21 | 2017-08-29 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of monitoring instrument of parallel tunneling with TBM process buries platform and method |
| CN107218074A (en) * | 2017-07-20 | 2017-09-29 | 中国矿业大学(北京) | Excavation face in coal mine dust pelletizing system |
| CN108278125A (en) * | 2018-03-09 | 2018-07-13 | 山西尚风科技股份有限公司 | A kind of totally-enclosed coal bunker vehicles while passing one's intention as revealed in what one says proscenia |
| CN112012737A (en) * | 2020-09-17 | 2020-12-01 | 辽宁工程技术大学 | Modularized fully-mechanized excavating face air curtain device and using method |
-
2021
- 2021-04-07 CN CN202110373752.2A patent/CN113062735B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007063912A (en) * | 2005-09-01 | 2007-03-15 | Onoda Chemico Co Ltd | Installation method of hose for injection of filling material into existing embedded pipe |
| CN2861485Y (en) * | 2006-01-10 | 2007-01-24 | 刘俏 | Dust pelletizing system for wind curtain dust collection fan in comprehensive digging working face |
| US20170203636A1 (en) * | 2016-01-15 | 2017-07-20 | Joy Mm Delaware, Inc. | Debris barrier for vehicle operator cab |
| CN106996304A (en) * | 2017-04-19 | 2017-08-01 | 淮北矿业股份有限公司 | Underworkings sprinkling truck |
| CN107100628A (en) * | 2017-06-21 | 2017-08-29 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of monitoring instrument of parallel tunneling with TBM process buries platform and method |
| CN107218074A (en) * | 2017-07-20 | 2017-09-29 | 中国矿业大学(北京) | Excavation face in coal mine dust pelletizing system |
| CN108278125A (en) * | 2018-03-09 | 2018-07-13 | 山西尚风科技股份有限公司 | A kind of totally-enclosed coal bunker vehicles while passing one's intention as revealed in what one says proscenia |
| CN112012737A (en) * | 2020-09-17 | 2020-12-01 | 辽宁工程技术大学 | Modularized fully-mechanized excavating face air curtain device and using method |
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| CN113062735B (en) | 2022-08-09 |
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