CN216198240U - Shaft construction ventilation dust collector - Google Patents
Shaft construction ventilation dust collector Download PDFInfo
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- CN216198240U CN216198240U CN202122725277.9U CN202122725277U CN216198240U CN 216198240 U CN216198240 U CN 216198240U CN 202122725277 U CN202122725277 U CN 202122725277U CN 216198240 U CN216198240 U CN 216198240U
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- filter screen
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- centrifugal separator
- air duct
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Abstract
The utility model discloses a shaft construction ventilation and dust removal device, which comprises a centrifugal separator and an air duct, wherein the centrifugal separator and the air duct are placed on the ground, the air duct is of a bending structure, a vertical cylinder body of the air duct extends to a downhole working surface, a horizontal cylinder body of the air duct is communicated with an air inlet formed in the side edge of the centrifugal separator, and a plurality of first spray heads are arranged in the horizontal cylinder body along the air inlet direction; the centrifugal separator is communicated with the exhaust fan through an air pipe, a filter screen is arranged in the centrifugal separator around the air pipe, the filter screen is arranged below an air inlet of the separator, the air inlet of the air pipe is positioned below the filter screen, and a dust exhaust port is arranged at the center of the bottom of the centrifugal separator. The device has the advantages of simple structure, convenient installation, good dust removal effect, high speed, high economic benefit and wide application range.
Description
Technical Field
The utility model relates to a dust removal device for shaft construction, in particular to a ventilation dust removal device for shaft construction.
Background
In order to achieve the aims of carbon peak reaching and carbon neutralization in a boosting mode, the nation vigorously develops renewable clean energy, and a pumped storage power station is used as the main force of the renewable clean energy and develops rapidly. The pumped storage power station has a complex structure, wherein the shaft construction is one of the main contents of pumped storage power station projects, and a large amount of dust is generated in the shaft excavation supporting construction process, so that the underground working environment is severe, the health of workers is influenced, and the construction efficiency is reduced. The problem of dust removal during construction is effectively solved, the construction environment in the shaft is improved, and the working efficiency is improved, so that the problem of shaft construction is solved.
The conventional vertical shaft dust removal method adopts a press-in type fan arranged on the ground to supply air into the vertical shaft, and blows dust out of a well head through air pressure.
In order to solve the problems of environmental protection and occupational health brought by the conventional method, the utility model provides the ventilation and dust removal device for the vertical shaft construction.
SUMMERY OF THE UTILITY MODEL
The utility model provides a ventilation and dust removal device for shaft construction, which aims to solve the problems of improving the dust removal and ventilation effects in a shaft and preventing secondary pollution of dust to the atmospheric environment.
A shaft construction ventilation dust removal device comprises a centrifugal separator and an air duct which are placed on the ground, wherein the air duct is of a bent structure, a vertical cylinder of the air duct extends to a downhole working surface, a horizontal cylinder of the air duct is communicated with an air inlet formed in the side edge of the centrifugal separator, and a plurality of first spray heads are arranged in the horizontal cylinder along the air inlet direction; the centrifugal separator is communicated with the exhaust fan through an air pipe, a filter screen is arranged in the centrifugal separator around the air pipe, the filter screen is arranged below an air inlet of the separator, the air inlet of the air pipe is positioned below the filter screen, and a dust exhaust port is arranged at the center of the bottom of the centrifugal separator.
The further technical scheme is as follows: the filter screen in the centrifugal separator is of a spiral structure.
The further technical scheme is as follows: the filter screen in the centrifugal separator is provided with a plurality of layers from top to bottom.
The further technical scheme is as follows: the top end of the inner wall of the centrifugal separator is also provided with a second spray head, and the second spray head comprises a plurality of atomizing spray heads for downwards spraying water mist.
The further technical scheme is as follows: the air inlet of tuber pipe is provided with the tuber pipe filter screen, the tuber pipe filter screen is the back taper structure, the top and the tuber pipe air intake connection of tuber pipe filter screen, the bottom and the dust exhaust mouth of tuber pipe filter screen are connected.
The further technical scheme is as follows: the filter screen is a gas-liquid filter screen.
The utility model has the beneficial effects that:
the device has the advantages of simple structure, convenient installation, good dust removal effect, high speed, high economic benefit and wide application range. Utilize superfine spraying to adsorb the dust, utilize whirl and physical adsorption separation to contain dust water smoke, and then promoted the effect of removing dust greatly, it is obvious to compare the dust removal advantage of forced fan toward supplying air in the well, through the design of spiral filter screen and tuber pipe filter screen, can further separate remaining drop of water and large granule in the gas for the gas of output accords with emission standard.
Drawings
FIG. 1 is a block diagram of the present invention.
In the figure:
1. the air duct comprises an air duct body, 11 vertical tube bodies, 12 horizontal tube bodies, 2 first spray nozzles, 3 centrifugal separators, 31 separator air inlets, 4 filter screens, 5 dust exhaust ports, 6 air ducts, 61 air duct air inlets, 7 exhaust fans, 8 second spray nozzles, 9 air duct filter screens.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which refer to directions or positional relationships, are used for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A shaft construction ventilation dust collector, as shown in figure 1, comprises a centrifugal separator 3 and an air duct 1 which are placed on the ground, wherein the air duct 1 is of a bent structure and comprises a vertical barrel 11 and a horizontal barrel 12, the vertical barrel 11 of the air duct 1 extends to the underground working surface, the horizontal barrel 12 of the air duct 1 is communicated with an air inlet formed in the side edge of the centrifugal separator 3, and a plurality of first spray nozzles 2 are arranged in the horizontal barrel 12 along the air inlet direction; centrifugal separator 3 passes through tuber pipe 6 and air exhauster 7 intercommunication, is provided with filter screen 4 around tuber pipe 6 in the centrifugal separator 3, and filter screen 4 sets up in the below of separator air intake 31, and the air intake of tuber pipe 6 is located the below of filter screen 4, and the center of centrifugal separator 3 bottom is provided with dust exhaust port 5. Preferably, the centrifugal separator 3 is a commercially available cyclone separator.
The filter screen 4 in the centrifugal separator 3 is of a spiral structure, and the gas containing dust and water mist passes through the spirally distributed filter screen and has the same rotating direction as the gas, so that the gas is more fully filtered. Simultaneously because gaseous high-speed rotatory, the gas through filter screen 4 can wash away filter screen 4 fast simultaneously for the dust granule that the filter screen blockked up is taken away by gaseous, makes to cross the filter screen and is difficult to block up increase of service life.
The filter screen 4 in the centrifugal separator is provided with a plurality of layers from top to bottom. The filter screen 4 is arranged to enable the gas to pass through the filter screen 4 to rotate downwards and filter, and the gas and dust separation effect is better.
The top end of the inner wall of the centrifugal separator 3 is also provided with a second spray nozzle 8, and the second spray nozzle 8 comprises a plurality of atomizing spray nozzles for downwards spraying water mist. When the dust air enters the centrifugal separator 3 from the separator air inlet 31, the second nozzle 8 sprays water mist again to capture dust, and water mist with dust particles is formed.
The air pipe air inlet 61 is provided with an air pipe filter screen 9, the air pipe filter screen 9 is of an inverted cone structure, the top end of the air pipe filter screen 9 is connected with the air pipe air inlet 61, and the bottom of the air pipe filter screen 9 is connected with the dust exhaust port 5. The separated air enters the air pipe through the air pipe filter screen 9, the air pipe filter screen 9 can further adsorb and capture fine water mist, and dust is separated, so that the air discharged from the air pipe is the air meeting the requirements. Preferably, the air duct filter screens 9 are all gas-liquid filter screens, such as polypropylene filter screens or glass fiber mixed filter screens.
The working principle of the utility model is as follows:
the air containing dust in the working surface is sucked out of the well by the suction underpressure created by the suction fan and conveyed into the centrifugal separator. A plurality of first spray heads arranged in a horizontal cylinder of the air cylinder can generate superfine water mist in the air cylinder, the water mist is used for adsorbing dust suspended in air before the dust air enters the centrifugal separator, and the dust is combined with the water mist, so that a mixture of the dust combined with the water mist and the air enters the centrifugal separator. When dust air enters the centrifugal separator 3 from the side air inlet, the dust air rotates at a high speed under the action of the centrifugal separator, and the rotating air flow rotates downwards along the direction of the filter 4 because the air inlet of the air pipe 6 is lower than the filter 4. Because the airflow rotates at a high speed and generates a centrifugal effect, the water mist originally adsorbed with dust particles is concentrated at the periphery of the separator, and is further separated by the filter when passing through the filter 4, and finally muddy water containing dust is formed. The muddy water containing the dust is gathered at the lower part of the centrifugal separator 3, and is not taken away by the air flow because of high density of the muddy water, so that the dust is separated from the air to achieve the effect of dust removal, and the purified air enters the exhaust fan 7 through the air pipe 6 and is discharged into the air.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A shaft construction ventilation dust collector is characterized by comprising a centrifugal separator and an air duct which are placed on the ground, wherein the air duct is of a bent structure, a vertical cylinder of the air duct extends to a downhole working surface, a horizontal cylinder of the air duct is communicated with an air inlet formed in the side edge of the centrifugal separator, and a plurality of first spray heads are arranged in the horizontal cylinder along the air inlet direction; the centrifugal separator is communicated with the exhaust fan through an air pipe, a filter screen is arranged in the centrifugal separator around the air pipe, the filter screen is arranged below an air inlet of the separator, the air inlet of the air pipe is positioned below the filter screen, and a dust exhaust port is arranged at the center of the bottom of the centrifugal separator.
2. A shaft construction ventilating and dedusting apparatus as set forth in claim 1, wherein the filter screen in the centrifugal separator is of a spiral structure.
3. A shaft construction ventilating and dedusting apparatus as claimed in claim 2, wherein the filter screen in the centrifugal separator is provided with a plurality of layers from top to bottom.
4. A shaft construction ventilating and dedusting apparatus as set forth in claim 1, wherein a plurality of second spray nozzles are further provided at the top end of the inner wall of the centrifugal separator, the second spray nozzles spraying water mist downwardly.
5. A shaft construction ventilation dust collector of claim 1, wherein the air inlet of the air duct is provided with an air duct filter screen, the air duct filter screen is an inverted cone structure, the top end of the air duct filter screen is connected with the air inlet of the air duct, and the bottom of the air duct filter screen is connected with the dust exhaust port.
6. A shaft construction ventilation dust collector of claim 5, wherein the air duct filter screen is an air-liquid filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122725277.9U CN216198240U (en) | 2021-11-09 | 2021-11-09 | Shaft construction ventilation dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122725277.9U CN216198240U (en) | 2021-11-09 | 2021-11-09 | Shaft construction ventilation dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216198240U true CN216198240U (en) | 2022-04-05 |
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ID=80906118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122725277.9U Active CN216198240U (en) | 2021-11-09 | 2021-11-09 | Shaft construction ventilation dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216198240U (en) |
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2021
- 2021-11-09 CN CN202122725277.9U patent/CN216198240U/en active Active
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