CN113417688A - "annular" two attaches wall accuse dirt air curtain machine - Google Patents
"annular" two attaches wall accuse dirt air curtain machine Download PDFInfo
- Publication number
- CN113417688A CN113417688A CN202110762020.2A CN202110762020A CN113417688A CN 113417688 A CN113417688 A CN 113417688A CN 202110762020 A CN202110762020 A CN 202110762020A CN 113417688 A CN113417688 A CN 113417688A
- Authority
- CN
- China
- Prior art keywords
- air
- annular
- air curtain
- curtain machine
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
Abstract
The invention provides an annular double-wall-attached dust control air curtain machine which mainly comprises an annular air curtain machine, a pressure fan, an exhaust fan, a pressure air cylinder, an air suction cylinder, a pressure fan motor and an exhaust fan motor. The wall attaching blades arranged on the device effectively change the air flow migration track, enlarge the dust control area of the air curtain and efficiently reduce the dust control air curtain of high-concentration dust generated on the fully mechanized excavation face. The equipment is applied to a limited space and has the characteristics of stable dust control and obvious dust suppression effect. The dust control device is good for the laboratory to research the dust migration and dispersion rules, the experimental research of the dust control device and the underground operation.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to an annular double-wall-attached dust control air curtain machine.
Background
With the increasing level of industrial production mechanization technology, the requirement for coal mining operation is greatly increased, and the dust content of the fully mechanized excavation face is increased.
Coal mining operation is in the finite space, fails to form normal ventilation system, causes the dust to return back into the operation environment along with the distinguished and admirable, leads to combining to dig work flour dirt content too high, and visibility reduces in the pit, produces the influence to staff's efficiency of construction, and the physical and chemical nature of coal dirt not only influences the healthy of staff in the pit, and meets the fire and can cause the explosion accident and cause the loss of lives and property when reaching certain concentration in the air.
The air curtain dust control technology has a wide research range in recent years and an ideal dust control effect, but the current domestic and foreign research on the air curtain dust control technology has certain defects, for example, a long-suction short-pressure type air curtain is simply used, a driving face only supplies air through a press-in type air duct, and no power facility is allowed to be added, so that the air volume entering the air curtain device cannot form an effective air curtain; the parallel flow air curtain machine has the problem of uneven distribution of the formed air curtain, and dust cannot be efficiently controlled.
Disclosure of Invention
The invention aims to provide an annular double-wall-attachment dust control air curtain machine which is suitable for effectively reducing high-concentration dust generated on a fully mechanized excavation working surface.
In order to achieve the above object, the present invention provides the following technical solutions.
The invention provides an annular double-wall-attached dust control air curtain machine which comprises an annular air curtain machine, a pressure fan, an exhaust fan, a pressure air cylinder, an air suction cylinder, a pressure fan motor and an exhaust fan motor.
The annular air curtain machine is composed of an annular circulator, an outer ring nozzle, an inner ring nozzle and wall attaching blades.
The pressure fan motor controls the pressure fan, the pressure fan is connected with a pressure air cylinder, the pressure air cylinder is horizontally fixed at the left end and the right end of the annular circulator, and the pressure fan conveys air to the annular air curtain machine through the pressure air cylinder.
The exhaust fan is controlled by the exhaust fan motor and connected with the exhaust cylinder, and the exhaust cylinder is arranged at the central part of the annular air curtain machine and is positioned on the same horizontal line with the air pressing cylinder.
The arrangement of the wall attaching blades is generally consistent with the tangential direction of the rotational flow, and the angle is properly adjusted, the included angle between the wall attaching blades and the air outlet direction of the outer ring nozzle is 10-35 degrees, so that the jet flow direction of most of the wall attaching blades can be prevented from being orthogonal to the wall surface of a roadway, the jet flow rebounding air flow can be enhanced, and the dust separation effect of the vortex air curtain is enhanced.
The outer ring nozzles and the inner ring nozzles are in the direction facing head, the outer ring nozzles all exhaust air in the same direction, and the air exhaust directions of the inner ring nozzles are intersected at one point.
The coanda vane of the invention has the advantages that: the air current leaves outer loop nozzle back through the attaches the wall blade that has the radian, makes the air current form and attaches the wall effect, changes the movement track of wind current, and enlarge the air curtain and form the area, it plays the important role to the straight line efflux formation vortex to attach the wall blade, form the annular forward spiral air current that uses circular air curtain machine as the centre of a circle, air draft is carried out to the convulsions section of thick bamboo of this circular air curtain machine central authorities simultaneously, the axial low-pressure zone in convulsions section of thick bamboo central authorities has been formed, combine to dig the entrainment air current in the space and will flow to the low-pressure zone, thereby the effectual dust particle entrainment of convulsions section of thick bamboo.
The annular double-wall-attached dust control air curtain machine has the advantages that: the invention can form a better air curtain belt between the fully-mechanized excavation space and the machine operating platform, thereby obstructing the spreading of mine dust, and on the other hand, the invention can effectively extract the mine dust in the fully-mechanized excavation space, thereby greatly reducing the safety and environmental protection problems caused by the dust.
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.
FIG. 1 is a schematic view of an "annular" double-wall-attached dust control air curtain.
FIG. 2 is a circular air curtain machine of a circular double-wall dust-control air curtain machine.
In the figure: 1-an exhaust fan motor; 2-an exhaust fan; 3-a blower motor; 4-a blower fan; 5-a wind suction barrel; 6-pressing an air cylinder; 7-annular air curtain machine; 8-a circular flow-through; 9-outer ring nozzle; 10-coanda vane; 11-inner ring nozzle.
Detailed description of the preferred embodiments
The present invention will be described in further detail with reference to examples.
The invention provides an annular double-wall-attached dust control air curtain machine which mainly comprises an annular air curtain machine 7, a pressure fan 4, an exhaust fan 2, a pressure air cylinder 6, a suction air cylinder 5, a pressure fan motor 3 and an exhaust fan motor 1.
The annular air curtain machine 7 is composed of an annular circulator 8, an outer ring nozzle 9, an inner ring nozzle 11 and a coanda vane 10.
The air pressing cylinder 6 of the annular air curtain machine 7 is connected with the air pressing machine 4, and the air drawing cylinder 5 is connected with the air drawing machine 2.
The pressure fan motor 3 controls the pressure fan 4, the pressure fan 4 is connected with the pressure air cylinder 6, the pressure air cylinder 2 is fixed at the left end and the right end of the annular circulator 8, and the pressure fan 4 conveys air to the annular air curtain machine 7 through the pressure air cylinder 6.
The air flow conveyed by the annular air curtain machine 7 flows through the annular circulator 8 and is sprayed to the fully mechanized excavation working space through the inner ring nozzle 11 and the outer ring nozzle 9, an outer ring nozzle 9 outlet is provided with a wall attaching blade 10, an included angle between the wall attaching blade 10 and the air outlet direction of the outer ring nozzle 9 is 10-35 degrees, the air flow flows through the annular circulator 8 and flows out along the wall attaching blade 10, under the combined action of the inner ring nozzle 11, the outer ring nozzle 9 and the wall attaching blade 10, an annular forward spiral air flow with the annular air curtain machine 7 as the center of a circle is formed, and dust in the fully excavated space moves along with the movement track of the spiral air flow, so that the dust control effect is achieved.
The exhaust fan motor 1 controls the exhaust fan 2, the exhaust fan 2 is connected with the exhaust barrel 5, and the exhaust barrel 5 is arranged at the center of the annular air curtain machine 7 and is positioned on the same horizontal line with the air pressing barrel 6.
The exhaust fan 2 is connected with the exhaust barrel 5 for exhausting air, the exhaust barrel 5 is connected at the central position of the annular air curtain machine 7, so that a low-pressure zone is formed at the central shaft of the annular air curtain machine 7, a backflow zone formed on the wall surface of the comprehensive digging space is in a high-pressure zone, dust-containing air flow is gathered towards the axis of the annular air curtain machine 7 under the driving of the high-pressure and low-pressure difference, and finally the dust is extracted through the exhaust barrel 5, so that the purpose of dust removal is realized.
The foregoing examples are illustrative only of the principles and efficacy of the invention, and are not to be construed as limiting the invention. Any modifications, equivalent substitutions, improvements and the like which may occur to those skilled in the art without departing from the spirit and scope of the invention are still to be protected by the following claims.
Claims (7)
1. The utility model provides a "two wall accuse dirt air curtain machines that attach of" annular ", its characterized in that: comprises an annular air curtain machine (7), a pressure fan (4), an exhaust fan (2), a pressure air cylinder (6), an exhaust air cylinder (5), a pressure fan motor (3) and an exhaust fan motor (1).
2. The annular double-wall-attached dust control air curtain machine as claimed in claim 1, wherein: the annular air curtain machine (7) is composed of an annular circulator (8), an outer ring nozzle (9), an inner ring nozzle (11) and wall attaching blades (10).
3. The annular double-wall-attached dust control air curtain machine as claimed in claim 1, wherein: the pressure fan motor (3) controls the pressure fan (4), the pressure fan (4) is connected with the pressure air cylinder (6), the pressure air cylinder (6) is fixed at the left end and the right end of the annular circulator (8), and the pressure fan (4) conveys air to the annular air curtain machine (7) through the pressure air cylinder (6).
4. The annular double-wall-attached dust control air curtain machine as claimed in claim 1, wherein: the air flow conveyed by the annular air curtain machine (7) flows through the annular circulator (8) and is sprayed to the fully mechanized excavation working space through the inner ring nozzle (11) and the outer ring nozzles (9), an outlet of each outer ring nozzle (9) is provided with a wall attaching blade (10), and an included angle between the wall attaching blade (10) and the air outlet direction of the outer ring nozzles (9) is 10-35 degrees.
5. The annular double-wall-attached dust control air curtain machine as claimed in claim 1, wherein: the air flow conveyed by the annular air curtain machine (7) flows through the annular circulating device (8) and flows out along the wall attaching blades (10), under the combined action of the inner ring nozzle (11), the outer ring nozzle (9) and the wall attaching blades (10), an annular forward spiral air flow taking the annular air curtain machine (7) as a circle center is formed, and dust in the fully mechanized excavation space moves along with the movement track of the spiral air flow, so that the dust control effect is achieved.
6. The annular double-wall-attached dust control air curtain machine as claimed in claim 1, wherein: the air extractor is characterized in that the air extractor motor (1) controls the air extractor (2), the air extractor (2) is connected with the air extracting cylinder (5), and the air extracting cylinder (5) is arranged at the center of the annular air curtain machine (7) and is positioned on the same horizontal line with the air pressing cylinder (6).
7. The annular double-wall-attached dust control air curtain machine as claimed in claim 1, wherein: air exhauster (2) are connected air draft tube (5) and are carried out convulsions, and air draft tube (5) are connected at the central point of annular air curtain machine (7) and are put to the central axis department at annular air curtain machine (7) low pressure area has been formed, and the backward flow district that forms at the wall of combining the digging space is in high-pressure district, under high-low pressure difference's drive, and dusty air current assembles towards annular air curtain machine (7) axle center, finally takes out through air draft tube (5), thereby realizes the purpose of dust removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110762020.2A CN113417688B (en) | 2021-07-06 | 2021-07-06 | 'annular' double-wall-attached dust control air curtain machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110762020.2A CN113417688B (en) | 2021-07-06 | 2021-07-06 | 'annular' double-wall-attached dust control air curtain machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113417688A true CN113417688A (en) | 2021-09-21 |
| CN113417688B CN113417688B (en) | 2022-07-29 |
Family
ID=77720361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110762020.2A Active CN113417688B (en) | 2021-07-06 | 2021-07-06 | 'annular' double-wall-attached dust control air curtain machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113417688B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348057A (en) * | 1980-08-25 | 1982-09-07 | B & J Manufacturing Company | Blower and dust collecting machine and method of operation |
| US4632462A (en) * | 1984-07-26 | 1986-12-30 | Atlantic Richfield Company | Continuous miner-mounted mine ventilation system |
| CN102174895A (en) * | 2011-02-25 | 2011-09-07 | 湖南科技大学 | Dust collection and removal device for mine machine excavation working surface |
| CN103816754A (en) * | 2014-03-04 | 2014-05-28 | 湖南九九矿安装备有限公司 | Efficient energy-saving air-assisted spray dust remover |
| CN110469360A (en) * | 2019-08-15 | 2019-11-19 | 湖南科技大学 | A kind of fully mechanized workface radial vortex shielding ventilating system |
| CN110882595A (en) * | 2019-12-26 | 2020-03-17 | 徐州徐工环境技术有限公司 | Dust suppression device with adjustable spray particle size |
| CN111364990A (en) * | 2020-03-31 | 2020-07-03 | 辽宁工程技术大学 | Vortex air curtain conversion device |
| CN111577376A (en) * | 2020-05-15 | 2020-08-25 | 中国矿业大学 | Mine driving face dust removal method |
| CN112343645A (en) * | 2020-08-04 | 2021-02-09 | 煤科集团沈阳研究院有限公司 | Dust falling device and method for driving working face |
-
2021
- 2021-07-06 CN CN202110762020.2A patent/CN113417688B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348057A (en) * | 1980-08-25 | 1982-09-07 | B & J Manufacturing Company | Blower and dust collecting machine and method of operation |
| US4632462A (en) * | 1984-07-26 | 1986-12-30 | Atlantic Richfield Company | Continuous miner-mounted mine ventilation system |
| CN102174895A (en) * | 2011-02-25 | 2011-09-07 | 湖南科技大学 | Dust collection and removal device for mine machine excavation working surface |
| CN103816754A (en) * | 2014-03-04 | 2014-05-28 | 湖南九九矿安装备有限公司 | Efficient energy-saving air-assisted spray dust remover |
| CN110469360A (en) * | 2019-08-15 | 2019-11-19 | 湖南科技大学 | A kind of fully mechanized workface radial vortex shielding ventilating system |
| CN110882595A (en) * | 2019-12-26 | 2020-03-17 | 徐州徐工环境技术有限公司 | Dust suppression device with adjustable spray particle size |
| CN111364990A (en) * | 2020-03-31 | 2020-07-03 | 辽宁工程技术大学 | Vortex air curtain conversion device |
| CN111577376A (en) * | 2020-05-15 | 2020-08-25 | 中国矿业大学 | Mine driving face dust removal method |
| CN112343645A (en) * | 2020-08-04 | 2021-02-09 | 煤科集团沈阳研究院有限公司 | Dust falling device and method for driving working face |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113417688B (en) | 2022-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110469360B (en) | Fully-mechanized excavation working face radial rotational flow shielding ventilation system | |
| CN103352718A (en) | Fully-sealed wind power slagging gas-drainage deep well drilling system and method | |
| CN101852086B (en) | Composite electroless efficient special dust-removing equipment for coal mines | |
| CN102418544A (en) | Gas control and dust fall method for overlapped section of air barrels in excavation roadway | |
| CN103161415B (en) | Negative pressure drilling system | |
| CN107091110B (en) | A kind of dust removing down-hole of coal mine device | |
| CN208650903U (en) | A kind of comprehensive pick face dust guard of novel air way | |
| CN113417688B (en) | 'annular' double-wall-attached dust control air curtain machine | |
| CN201103404Y (en) | High-pressure water gas jet current secondary rotating ventilator | |
| CN201037426Y (en) | Support coal discharge injection negative pressure atomization dust remover | |
| CN108590648B (en) | A kind of coal mine is comprehensive to dig hydraulic wind-curtain dust-catching fan device and dust pelletizing system | |
| CN111364990B (en) | Vortex air curtain conversion device | |
| CN102168534A (en) | Special mining suction drill for coal mine | |
| CN206874303U (en) | A kind of mining dust catcher | |
| CN103266908B (en) | A kind of development end cleaner | |
| CN203626841U (en) | Cyclone dust suppressor | |
| CN105604597A (en) | Intelligent exhaust system | |
| CN202824057U (en) | Offline recovery device for helical weld pipe inner welding slag | |
| CN203022796U (en) | Coal mine tunnel accumulated dust removal device | |
| CN210483729U (en) | Dust removal fan with dust absorption sleeve | |
| CN201884339U (en) | Wet-type blade centrifugal dust shaker | |
| CN205382937U (en) | Spray dust removal device and entry driving machine | |
| CN204253040U (en) | Development machine dedusting fan | |
| CN204327170U (en) | A kind of mine dedusting fan | |
| CN201537618U (en) | Complex electroless high-efficient dedusting equipment specially used for coal mine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |