CN114183184A - Universal regulation type injection grading air-water dust-settling fog-curtain device of development machine - Google Patents

Universal regulation type injection grading air-water dust-settling fog-curtain device of development machine Download PDF

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Publication number
CN114183184A
CN114183184A CN202111481558.2A CN202111481558A CN114183184A CN 114183184 A CN114183184 A CN 114183184A CN 202111481558 A CN202111481558 A CN 202111481558A CN 114183184 A CN114183184 A CN 114183184A
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CN
China
Prior art keywords
air
water
dust
grading
dust fall
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Pending
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CN202111481558.2A
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Chinese (zh)
Inventor
佟林全
王志恒
贾鑫
樊晶光
张震
孙凯
王嘉莹
张陆
熊强
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Occupational Safety And Health Research Center Of National Health And Health Commission Coal Industry Occupational Medicine Research Center Of National Health And Health Commission
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Occupational Safety And Health Research Center Of National Health And Health Commission Coal Industry Occupational Medicine Research Center Of National Health And Health Commission
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Priority to CN202111481558.2A priority Critical patent/CN114183184A/en
Publication of CN114183184A publication Critical patent/CN114183184A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • E21F5/02Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
    • E21F5/04Spraying barriers
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C35/00Details 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
    • E21C35/22Equipment for preventing the formation of, or for removal of, dust

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention discloses a universal adjusting type injection grading air-water dust-fall fog curtain device of a development machine, which comprises an injection grading dust-fall fog curtain unit, a universal adjusting unit and an air-water spraying unit; draw and penetrate hierarchical dust fall fog curtain unit and include that three draws penetrates hierarchical dust fall fog curtain device and is connected by the fixed rod piece, and every draws penetrates hierarchical dust fall fog curtain device and includes main part, a toper section of thick bamboo, annular partition suction hood, and the annular partition suction hood is connected to the main part upside, and the air water pipeline is connected in the trompil of right side, and the left side is passed through universal regulating unit and is connected a toper section of thick bamboo, and the air water shower nozzle is connected by the cassette to universal regulating unit inside, realizes that a toper section of thick bamboo is the same with adjustable and axle center of air water shower nozzle angle. The air-water spraying unit comprises an air-water spray head, an air supply unit and a water supply unit, provides continuous air-water spraying for the injection grading dust fall fog curtain device, sprays dust fall on a driving face for one time, simultaneously forms a high-speed flow guide area in the main body and the conical cylinder, captures dust with a full-section angle through the annular separation dust hood, and realizes injection grading dust fall.

Description

Universal regulation type injection grading air-water dust-settling fog-curtain device of development machine
Technical Field
The invention belongs to the technical field of dust control, and particularly relates to a universal adjusting type injection grading air-water dust-settling fog curtain device of a heading machine, which can be modified and applied according to the actual conditions of a coal mine.
Background
With the update of the technology of coal mine production, the coal mining production efficiency can not be in the same day, the number of the tunneling working faces is doubled and increased, and the problem of dust production in the tunneling working face tunneling process is gradually aggravated. The tunneling work needs to cut the working face at a high speed through a large mechanical tunneling machine, the dust generation has a high initial speed, the diffusion speed and the migration range of the dust generation are increased, and therefore potential threats to the occupational health of workers are increased.
At present, the main dust fall modes of the tunneling working face are ventilation dust removal and spray dust removal. The ventilation and dust removal are classified into press-in ventilation, draw-out ventilation and long-press short-suction ventilation, wherein the press-in ventilation is the most common, and the press-in ventilation can only be used in a mine with gas outburst according to the regulation, so the ventilation and dust removal mode is limited.
The spray dust removal is divided into inner spray and outer spray. The inner spraying is that the spraying is arranged in the tunneling machine, when the tunneling machine head cuts a working face, the spraying is sprayed out from the machine head, although the method directly acts on a dust source, the spraying coverage area is small, the spraying is also easily blocked and abraded by cut materials, and a better effect cannot be achieved. Outer spraying is to add and establishes the shower nozzle in the entry driving machine outside, sets up a plurality of shower nozzles usually and makes the spraying cover whole tunnelling working face to prevent the dust diffusion, but outer spraying can cause this area of work water serious when using great spray volume, is unfavorable for staff safety in production, and can't high-efficient seizure working face dust again when the spray volume is less.
Therefore, aiming at the defect of dust removal of the traditional tunneling working face, the universal adjusting type injection grading air water dust settling fog curtain device of the tunneling machine is very necessary to design.
Disclosure of Invention
According to the analysis of the existing dust removal technology, the invention provides a universal adjusting type injection grading air-water dust settling fog curtain device of a heading machine. On the basis of traditional external spraying dust fall, the spraying drainage effect on surrounding fluid is combined, and the injection grading dust fall effect is achieved by improving the forming path of spraying drainage. The spraying itself can form a local negative pressure area around to attract surrounding fluid to approach, the spraying is placed in the injection grading dust fall fog curtain device, the negative pressure intensity generated by the spraying is enlarged through structural change, and therefore the dust collection effect is achieved. In addition, the injection grading dust fall fog curtain device adopts the annular separation dust hood, the dust collection effect brought by spraying is fully exerted, meanwhile, the separation baffle accelerates dust-containing airflow to enter the annular separation dust hood, and the dust collection effect is enlarged.
In order to achieve the purpose, the invention adopts the following technical scheme:
a universal adjusting type injection grading air-water dust fall fog curtain device of a development machine comprises an injection grading dust fall fog curtain unit, a universal adjusting unit and an air-water spraying unit; draw and penetrate hierarchical dust fall fog curtain unit and include that three draws and penetrate hierarchical dust fall fog curtain device and be connected by the fixed rod piece, every draws and penetrates hierarchical dust fall fog curtain device and include that main part, a toper section of thick bamboo, annular separate the suction hood, the main part upside is connected the suction hood is separated to the annular, and the air water pipeline is connected in the trompil of right side, and the universal regulating unit connection toper section of thick bamboo is passed through in the left side, the air water shower nozzle is connected by the cassette to the universal regulating unit inside, realizes that a toper section of thick bamboo is the same with air water shower nozzle angularly adjustable and axle center. The air-water spraying unit provides continuous air-water spraying for the injection grading dust fall fog curtain device, one-time spraying dust fall of a driving face is achieved, meanwhile, high-speed flow guide areas are formed in the main body and the conical barrel through the continuous air-water spraying, dust at full-section angles is captured through the annular separation dust hood, and injection grading dust fall is achieved. The number of the injection grading dust fall fog curtain devices can be changed according to actual occasions.
The main part is horizontal cylinder, and inside and side are hollowed, and the round hole welding customization ring groove is seted up to the left side, and the right side trompil is used for passing through the air water pipeline.
Four parallel connection baffles are arranged in the annular separation dust hood, so that the flowing direction of air flow is changed, the dust-containing air flow enters the annular separation dust hood at an accelerated speed, and the grading dust falling efficiency is ensured.
The cone-shaped cylinder is in a circular truncated cone shape, the inner part of the cone-shaped cylinder is hollowed, the diameter of the cross section of one side of the cone-shaped cylinder and the cross section of one side of the universal adjusting unit is about 2/3 of the cross section of the other side of the cone-shaped cylinder, and the cone-shaped cylinder and air water spray form a high-speed diversion area.
The universal adjusting unit adopts an oval hollow structure, one side of the universal adjusting unit is fixedly welded with the conical barrel, one side of the universal adjusting unit is fixedly arranged in the main body customized annular clamping groove, and the telescopic support is welded inside the universal adjusting unit and can be used for fixing air-water spray heads with different sizes.
The gas-water spraying unit comprises a gas-water sprayer, a gas supply unit and a water supply unit, wherein the gas-water sprayer is provided with a gas supply interface and a water supply interface, the gas supply interface is connected with a gas supply pipe, a first tee joint, a first valve, a gas flowmeter, a gas pressure gauge and an air compressor, and the water supply interface is connected with a high-pressure water pipe, a second tee joint, a second valve, a liquid flowmeter, a liquid pressure gauge, a water pump, a filter and a water tank.
The invention has the beneficial effects that:
1. the device provided by the invention utilizes a spray drainage technology, realizes injection secondary dust fall after spraying primary dust fall, and can effectively control dust diffused and moved on a driving face. The annular separating dust hood of the device increases the dust collection effect, realizes all-dimensional dust collection and increases the dust collection coverage area. The equipment structure is simple, and the iron injection grading dust fall fog curtain device plays a role in protecting the air-water spray head, so that the service life of the air-water spray head is prolonged.
2. The universal adjusting unit of the device has simple structure and huge effect, realizes the angle adjusting function of the air-water spray head, and can adjust the spray coverage area of the air-water spray head according to actual needs in the tunneling working process, thereby improving the adaptability of the dust removing equipment.
3. The device of the invention adopts the air-water spray head, the spraying distance is longer, the spraying granularity is smaller, and the dust removal effect is better. Each part exists alone, simple structure, and the assembly and disassembly of being convenient for, every pipeline all is equipped with the valve and can control the switch at any time, easily operation control.
Drawings
FIG. 1 is a front view of a universal adjusting type injection grading air-water dust-settling fog curtain device of a development machine;
FIG. 2 is a side view of a universal adjusting type injection grading air-water dust-settling fog curtain device of the development machine;
FIG. 3 is a partial schematic view of an injection grading dust fall fog curtain device of the invention;
fig. 4 is a three-dimensional schematic view of an injection grading dust fall fog curtain device in the invention.
In the figure, 1-main body, 2-telescopic bracket, 3-air water spray head, 4-conical barrel, 5-universal joint, 6-annular separation dust hood, 7-customized annular clamping groove, 8-high pressure water pipe, 9-air supply pipe, 10-fixed rod piece, 11-first tee joint, 12-second tee joint, 13-first valve, 14-gas flowmeter, 15-gas pressure gauge, 16-air compressor switch, 17-air compressor, 18-second valve, 19-liquid flowmeter, 20-liquid pressure gauge, 21-water pump switch, 22-water pump, 23-filter, 24-water tank, 25-spray, 26-dust-containing air flow and 27-separation baffle.
Detailed Description
For better understanding of the present invention, the technical solutions and effects of the present invention will be described in detail by the following embodiments with reference to the accompanying drawings.
As shown in the figure, the universal adjusting type injection grading air-water dust-fall fog curtain device of the development machine comprises an injection grading dust-fall fog curtain unit, a universal adjusting unit and an air-water spraying unit; draw and penetrate hierarchical dust fall fog curtain unit and include that three draws and penetrate hierarchical dust fall fog curtain device and be connected by fixed rod 10, every draws and penetrates hierarchical dust fall fog curtain device and include that main part 1, a conical drum 4, annular separate suction hood 6, and 1 upside in main part is connected suction hood 6 is separated to the annular, and the air water pipeline is connected in the trompil of right side, and universal regulating unit connection conical drum 4 is passed through in the left side, universal regulating unit is inside to be connected air water shower nozzle 3 by telescopic bracket 2, realizes that conical drum 4 is the same with 3 angularly adjustable and axle centers of air water shower nozzle.
The main part 1 is a horizontal cylinder, the inside and the side surface are hollowed, a circular hole is formed in the left side of the main part and is welded with the customized annular clamping groove 7, and the right side of the main part is provided with a hole for passing through an air-water pipeline.
Four parallel separating baffles are arranged in the annular separating dust hood 6.
The conical barrel 4 is in a circular truncated cone shape, the interior of the conical barrel is hollowed, and the diameter of the section of one side of the conical barrel and the diameter of the section of one side of the universal adjusting unit are approximate to the diameter 2/3 of the section of the other side of the conical barrel.
The universal adjusting unit comprises a universal joint 5 and a telescopic support 2, an oval hollow structure is adopted, a conical barrel 4 is fixedly welded on one side, one side of the conical barrel is fixed in a main body customizing ring-shaped clamping groove 7, and the telescopic support 2 is welded inside the conical barrel.
The gas-water spraying unit comprises a gas-water sprayer 3, a gas supply unit and a water supply unit, wherein the gas-water sprayer 3 is provided with a gas supply interface and a water supply interface, the gas supply interface is connected with a gas supply pipe 9, a first tee joint 11, a first valve 13, a gas flowmeter 14, a gas pressure gauge 15 and an air compressor 16, and the water supply interface is connected with a high-pressure water pipe 8, a second tee joint 12, a second valve 18, a liquid flowmeter 19, a liquid pressure gauge 20, a water pump 22, a filter 23 and a water tank 24.
The one-time use process of the present invention is described below with reference to the accompanying drawings:
before the development machine works, the universal adjusting type injection grading air-water dust-settling fog curtain device is fixed on a development arm of the development machine, and the universal adjusting unit is adjusted to enable air-water spray sprayed by the air-water spray head 3 to cover the whole development working face. The first valve 13 and the air compressor switch 16 are started first, the air is delivered to the air-water spray head 3 through the air supply pipe 9, the first valve 13, the air flow meter 14, the air pressure gauge 15 and the first tee joint 11, the observation instrument shows normal, and the air path is smooth. Under the condition of ensuring that the air path is unobstructed, the second valve 18 and the water pump switch 21 are opened, water filters impurities from the water tank through the filter to ensure that water quality cannot block the air-water nozzle, the water reaches the air-water nozzle 3 through the high-pressure water pipe, the liquid flowmeter 19, the liquid pressure gauge 20, the second tee joint 12 and the second valve 18, air-water spray is sprayed out from the air-water nozzle 3, the air-water spray atomization angle is slightly larger than the angle of the conical cylinder 4, so that a closed area is formed, only the annular partition dust hood 6 is provided with a dust suction opening, a negative pressure area is formed in the main body 1 under the air-water spray drainage action, and dust-containing air flow 26 is sucked into the annular partition dust hood 6 to achieve injection grading dust removal.

Claims (6)

1. The utility model provides a hierarchical air water dust fall fog curtain device is drawn to universal regulation type of entry driving machine which characterized in that: the device comprises an injection grading dust fall fog curtain unit, a universal adjusting unit and an air-water spraying unit; the injection grading dust fall fog curtain unit comprises three injection grading dust fall fog curtain devices which are connected through a fixed rod piece, each injection grading dust fall fog curtain device comprises a main body, a conical barrel and an annular partition dust hood, the upper side of the main body is connected with the annular partition dust hood, an opening on the right side of the main body is connected with an air-water pipeline, and the left side of the main body is connected with the conical barrel through a universal adjusting unit; the inner part of the universal adjusting unit is connected with the air-water spray head through a telescopic support, so that the conical barrel and the air-water spray head can be adjusted in angle and have the same axis; the air-water spraying unit provides continuous air-water spraying for the injection grading dust fall fog curtain device to realize one-time spraying dust fall of a driving face, meanwhile, the continuous air-water spraying enables a high-speed flow guide area to be formed in the main body and the conical barrel, and full-section-angle dust is captured through the annular separation dust hood to realize injection grading dust fall; the number of the injection grading dust fall fog curtain devices can be changed according to actual occasions.
2. The universal regulation type of entry driving machine of claim 1 draws and penetrates hierarchical air water dust fall fog curtain device, its characterized in that: the main part is horizontal cylinder, and inside and side are hollowed, and the round hole welding customization ring groove is seted up to the left side, and the right side trompil is used for passing through the air water pipeline.
3. The universal regulation type of entry driving machine of claim 1 draws and penetrates hierarchical air water dust fall fog curtain device, its characterized in that: four parallel connection baffles are arranged in the annular separation dust hood, so that the flowing direction of air flow is changed, the dust-containing air flow enters the annular separation dust hood at an accelerated speed, and the grading dust falling efficiency is ensured.
4. The universal regulation type of entry driving machine of claim 1 draws and penetrates hierarchical air water dust fall fog curtain device, its characterized in that: the cone-shaped cylinder is in a circular truncated cone shape, the inner part of the cone-shaped cylinder is hollowed, the diameter of the cross section of one side of the cone-shaped cylinder and the cross section of one side of the universal adjusting unit is about 2/3 of the cross section of the other side of the cone-shaped cylinder, and the cone-shaped cylinder and air water spray form a high-speed diversion area.
5. The universal regulation type of entry driving machine of claim 1 draws and penetrates hierarchical air water dust fall fog curtain device, its characterized in that: the universal adjusting unit adopts an oval hollow structure, one side of the universal adjusting unit is fixedly welded with the conical barrel, one side of the universal adjusting unit is fixedly arranged in the main body customized annular clamping groove, and the telescopic support is welded inside the universal adjusting unit and can be used for fixing air-water spray heads with different sizes.
6. The universal adjusting type injection grading air-water dust-settling fog curtain device of the development machine as claimed in claim 1, wherein the air-water spraying unit comprises an air-water spray head, an air supply unit and a water supply unit, the air-water spray head is provided with an air supply interface and a water supply interface, the air supply interface is connected with an air supply pipe, a first tee joint, a first valve, an air flow meter, an air pressure gauge and an air compressor, and the water supply interface is connected with a high-pressure water pipe, a second tee joint, a second valve, a liquid flow meter, a liquid pressure gauge, a water pump, a filter and a water tank.
CN202111481558.2A 2021-12-07 2021-12-07 Universal regulation type injection grading air-water dust-settling fog-curtain device of development machine Pending CN114183184A (en)

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CN202111481558.2A CN114183184A (en) 2021-12-07 2021-12-07 Universal regulation type injection grading air-water dust-settling fog-curtain device of development machine

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Application Number Priority Date Filing Date Title
CN202111481558.2A CN114183184A (en) 2021-12-07 2021-12-07 Universal regulation type injection grading air-water dust-settling fog-curtain device of development machine

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115370362A (en) * 2022-08-23 2022-11-22 中煤科工集团重庆研究院有限公司 Dynamic tracking injection spraying dust falling device of coal mining machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2640611Y (en) * 2003-03-10 2004-09-15 山东泰山能源有限责任公司翟镇煤矿 High pressure airflow injection spraying dust removing appts.
CN209145627U (en) * 2018-11-19 2019-07-23 河南工业和信息化职业学院 A kind of coal mine device for reducing dust
CN110424963A (en) * 2019-07-12 2019-11-08 山东科技大学 A kind of development machine aerosol injection collaboration control dust-extraction unit and application method
US20210047927A1 (en) * 2019-04-24 2021-02-18 Shandong University Of Science And Technology Absorption-induction convectional dust-controlling/removing air/fog curtain device of fully-mechanized working face and method thereof
CN216866765U (en) * 2021-12-07 2022-07-01 国家卫生健康委职业安全卫生研究中心(国家卫生健康委煤炭工业职业医学研究中心) Universal regulation type injection classification air-water dust-settling fog curtain device of heading machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2640611Y (en) * 2003-03-10 2004-09-15 山东泰山能源有限责任公司翟镇煤矿 High pressure airflow injection spraying dust removing appts.
CN209145627U (en) * 2018-11-19 2019-07-23 河南工业和信息化职业学院 A kind of coal mine device for reducing dust
US20210047927A1 (en) * 2019-04-24 2021-02-18 Shandong University Of Science And Technology Absorption-induction convectional dust-controlling/removing air/fog curtain device of fully-mechanized working face and method thereof
CN110424963A (en) * 2019-07-12 2019-11-08 山东科技大学 A kind of development machine aerosol injection collaboration control dust-extraction unit and application method
CN216866765U (en) * 2021-12-07 2022-07-01 国家卫生健康委职业安全卫生研究中心(国家卫生健康委煤炭工业职业医学研究中心) Universal regulation type injection classification air-water dust-settling fog curtain device of heading machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115370362A (en) * 2022-08-23 2022-11-22 中煤科工集团重庆研究院有限公司 Dynamic tracking injection spraying dust falling device of coal mining machine

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