Spiral-flow type electric-capturing dust removal device

Abstract

The utility model relates to the technical field of gas treatment, in particular to a spiral-flow type electric-capture dust removal device which sequentially comprises a top cover, a dust removal module and a base from top to bottom, and gas enters from a gas inlet pipe arranged on the side wall of the base, flows through the dust removal module and then flows out from a smoke outlet pipe on the top cover. The device has the beneficial effects that the rotating table is matched with the fan blades to rotate through gas buoyancy to enable gas to be treated to rise in a rotational flow mode, large particles are preliminarily removed, the retention time of the gas in the device is prolonged, then electric capturing dust removal is efficiently conducted, the device is simple in overall structure, maintenance is convenient due to the reserved maintenance holes, and the market requirement is better met.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas treatment technical field, concretely is a cyclone type electric dust arrester. BACKGROUND

[0002] Electric dust arrester is a kind of equipment using electrostatic principle to remove particulate matter in flue gas, which makes particulate matter in flue gas charged by high-voltage electric field, and is collected on electrode under the action of electric field force, so as to achieve the purpose of dust removal. The gas of existing wet electric dust arrester passes through wet electric field, and the particulate matter therein collides with the electrode, so that the particulate matter is charged. The charged particulate matter is subjected to the attraction of the electrode, and at the same time, the spraying system in the wet electric dust removal equipment starts to work. The spraying system covers the space above the wet electric field by spraying water mist or other liquid adsorbent, and the charged particulate matter collides with the sprayed liquid, resulting in contact and wetting between the particulate matter and the liquid. The wetted particulate matter starts to increase and become heavy, so as to settle.

[0003] However, the traditional wet electric dust arrester has certain defects. First, the design of the traditional electric dust arrester is usually optimized based on the particle size distribution and charge characteristics of the particulate matter, but the treatment effect on large particulate matter is limited. Large particulate matter is easy to deflect in the electric field due to its large inertia, resulting in reduced dust removal efficiency. In addition, large particulate matter may produce secondary dust in the electric field, affecting the dust removal effect; secondly, the design parameters of the electric dust arrester, such as electrode spacing and electric field strength, also affect the treatment effect of large particulate matter. For large particulate matter, higher electric field strength and smaller electrode spacing are needed to improve the dust removal efficiency, but this may result in increased energy consumption and increased equipment size.

[0004] Therefore, it is urgent to design a new cyclone type electric dust arrester to solve the problem of the influence of large particulate matter on the electric dust arrester effect and the short residence time of gas flowing through the treatment device in the prior art, to meet the market demand. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a cyclone type electric dust arrester which uses a rotating table to rotate with the help of fan blades using gas buoyancy, and then performs the electric dust arrester step after throwing out large particulate matter, increases the residence time of gas in the overall device, improves the electric dust arrester effect from the side, the overall structure of the device is simple, maintenance holes are left for easy maintenance, and the market demand is better met.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A cyclone type electric dust removal device, from top to bottom, is sequentially provided with a top cover, a dust removal module and a base, gas enters from a gas inlet pipe arranged on the side wall of the base, flows through the dust removal module and then flows out from a smoke outlet pipe on the top cover, a cyclone module is arranged in the base, the cyclone module comprises a rotating table and a plurality of blades with equal inclination angles arranged on the side wall surface of the rotating table, the rotating table is fixedly arranged in the center of the inner cavity of the base through a fixed column connected at the bottom, the fixed column is perpendicular to the plane where the rotating table is located, each blade can rotate around the rotating table, and a gas inlet pipe is arranged on the side wall surface below the cyclone module.

[0008] Preferably, the dust removal module comprises an outer cylinder arranged on the base and a plurality of through pipes in the outer cylinder, the plurality of through pipes are closely arranged in a matrix shape in the vertical direction, two partition plates are sealingly arranged on the upper portion and the lower portion of the outer cylinder, the upper end and the lower end of the matrix formed by the through pipes penetrate through the corresponding partition plates, and the outer wall surface of the through pipe in the outermost circle of the matrix in contact with the partition plate is sealingly arranged.

[0009] Preferably, a spraying module is arranged on the side wall of the top cover, the spraying module comprises a liquid inlet pipe and an annular spraying ring arranged at one end of the liquid inlet pipe, the plane where the spraying ring is located is parallel to the partition plate, a plurality of nozzles are uniformly arranged on the lower portion of the spraying ring, and the other end of the liquid inlet pipe penetrates out of the top cover and is connected with a water channel; after cleaning liquid enters through the liquid inlet pipe, the cleaning liquid is sprayed from the nozzles through the spraying ring, flows down along the inner wall of each through pipe and then flows out through a liquid outlet pipe arranged on the lower portion of the side wall of the base.

[0010] Preferably, the nozzles are spiral nozzles.

[0011] Preferably, a maintenance opening A is arranged on the side wall surface of the top cover above the spraying module, and a maintenance opening B is arranged on the side wall surface of the base above the cyclone module.

[0012] Preferably, the horizontal height of the liquid outlet pipe is lower than that of the gas inlet pipe.

[0013] Preferably, the inclination angle of each blade is 10-15 degrees.

[0014] Compared with the prior art, the cyclone type electric dust removal device has the following beneficial effects:

[0015] 1. The cyclone type electric dust removal device adopts the rotating table and the blades to perform cyclone work, when the gas to be treated enters the inner cavity of the base from the gas inlet pipe, the gas naturally rises due to the gas buoyancy, generates centrifugal force outward when passing through the cyclone module, and throws the larger particles in the gas to the inner wall of the outer cylinder, so that the gas containing smaller particles continues to rise and enters the dust removal module to be electrically captured and removed, thereby reducing the working pressure of the dust removal module and improving the working efficiency.

[0016] 2、The utility model discloses a cyclone module makes gas cyclone ascending, can increase gas and remain in the whole device time, improve the effect of electric dust removal from the side.

[0017] In conclusion, the utility model discloses a rotating table cooperation fan blade utilizes gas buoyancy rotation and makes the gas to be handled cyclone ascending, first, the preliminary removal of larger particulate matter, lengthens gas and remains in the device time, and then efficiently carries out electric dust removal, and the whole device structure is simple, and the maintenance hole is left to facilitate maintenance, and more satisfy market demand. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole structure schematic diagram of the utility model;

[0019] Figure 2 It is dust removal module structure schematic diagram of the utility model;

[0020] Figure 3 It is base structure schematic diagram of the utility model;

[0021] Figure 4 It is A structure schematic diagram of the utility model;

[0022] Figure 5 It is spraying module structure schematic diagram of the utility model;

[0023] Figure 6 It is B structure schematic diagram of the utility model;

[0024] In the drawing: 1, top cover;101, maintenance hole A;102, smoke outlet pipe;103, spraying module;1031, liquid inlet pipe;1032, spraying ring;1033, spray head;2, dust removal module;201, through pipe;202, partition;203, outer cylinder;3, base;301, maintenance hole B;302, gas inlet pipe;303, liquid outlet pipe;304, cyclone module;3041, rotating table;3042, fan blade. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme of the utility model carry out clear, complete description, and the advantage is more clear and obvious, following combining the drawing to the utility model embodiment further detailed explanation.Should understand, the specific embodiment described here is the part embodiment of the utility model, instead of all the embodiment, just to explain the utility model embodiment, and does not use to limit the utility model embodiment, and all other embodiments obtained by the ordinary skill in the art without making the creative labor are within the scope of the utility model protection.

[0026] For the purposes of simplicity and illustration, the principles of the embodiments are primarily described by way of reference example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. It will be apparent, however, to one ordinarily skilled in the art that the embodiments can be practiced without the specific details and that numerous implementation choices may be made. In some instances, well-known methods and structures have not been described in detail in order to avoid unnecessarily obscuring the embodiments. Also, all embodiments can be used in combination with each other.

[0027] Please refer to the drawings, the utility model provides a technical scheme:

[0028] A cyclone type electric dust removal device, from top to bottom in turn is top cover 1, dust removal module 2 and base 3, gas enters from the air inlet pipe 302 arranged in the side wall of base 3, flows through dust removal module 2, and then flows out from the smoke outlet pipe 102 on top cover 1, the base 3 is provided with cyclone module 304, the cyclone module 304 includes rotating table 3041 and the equal angle of inclination of a plurality of fan blades 3042 installed on the side wall surface of rotating table 3041, the rotating table 3041 is fixedly arranged in the center of the inner cavity of base 3 by the fixed column connected to the bottom, the fixed column and the plane where rotating table 3041 is perpendicular to each other, each fan blade 3042 can rotate around rotating table 3041, the air inlet pipe 302 is arranged on the side wall surface below cyclone module 304 of base 3, when the gas to be treated enters the inner cavity of base from the air inlet pipe, it naturally rises due to the gas buoyancy, when passing through the cyclone module, the centrifugal force outward is generated, and the larger particles in the gas are thrown to the inner wall of the outer cylinder, the gas containing smaller particles continues to rise and enters the dust removal module for electric dust removal, thereby reducing the working pressure of the dust removal module and improving the working efficiency.

[0029] Further, the dust removal module 2 includes an outer cylinder 203 arranged on the base 3 and a plurality of through pipes 201 in the outer cylinder 203, the plurality of through pipes 201 are arranged vertically in a matrix, and two baffles 202 are sealingly arranged at the upper and lower parts of the outer cylinder 203, the upper and lower ends of the matrix formed by the through pipes 201 penetrate through the corresponding baffles 202, and the outer wall surface of the through pipe 201 in the outermost circle of the matrix is sealingly arranged in contact with the baffle 202, due to the cyclone flow of the cyclone module, the retention time of the gas in the overall device can be increased, and the effect of electric dust removal is improved from the side.

[0030] Further, the side wall of the top cover 1 is provided with a spraying module 103, which comprises a liquid inlet pipe 1031 and an annular spraying ring 1032 arranged at one end of the liquid inlet pipe 1031. The plane of the spraying ring 1032 is arranged in parallel with the partition plate 202. The lower part of the spraying ring 1032 is uniformly provided with a plurality of spray heads 1033. The other end of the liquid inlet pipe 1031 is arranged to pass through the top cover 1 and is connected with a waterway. After the cleaning liquid enters through the liquid inlet pipe 1031, it is sprayed from the spray heads 1033 through the spraying ring 1032, flows down along the inner wall of each duct 201, and flows out through the liquid outlet pipe 303 arranged at the lower side wall of the base 3.

[0031] Further, the spray head 1033 is a spiral spray head.

[0032] Further, the top cover 1 is provided with an inspection opening A101 on the side wall surface above the spraying module 103, and the base 3 is provided with an inspection opening B301 on the side wall surface above the cyclone module 304.

[0033] Further, the horizontal height of the liquid outlet pipe 303 is lower than that of the air inlet pipe 302.

[0034] Further, the inclination angle of each fan blade 3042 is 10-15 degrees.

[0035] Specific working mode: When the device is working, the gas to be treated enters the base from the air inlet pipe. Due to the influence of buoyancy, the gas rises. When the gas passes through the cyclone module, the buoyancy of the gas drives the fan blades to rotate around the rotating table, thereby making the gas perform cyclone motion to generate centrifugal force, which throws larger particles in the gas to the inner wall of the outer cylinder. The gas containing smaller particles continues to rise and enters the dust removal module for electrostatic precipitation. Due to the cyclone motion, the gas also prolongs the time in the dust removal module. At the same time, the spraying ring above the dust removal module sprays cleaning liquid through the spray heads to combine with the particles in the gas. The two cooperate to efficiently perform wet electrostatic precipitation. Finally, the gas passes through the dust removal module and reaches the top cover to be discharged from the smoke outlet pipe.

[0036] Although the above describes the specific embodiments of the present application in a descriptive manner, so that those skilled in the art can understand the present application, the present application is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, all applications created by utilizing the concept of the present application are within the scope of protection.

Claims

1. A cyclone electrostatic precipitator, comprising, from top to bottom, a top cover (1), a dust removal module (2), and a base (3), wherein gas enters through an inlet pipe (302) located on the side wall of the base (3), flows through the dust removal module (2), and exits through a smoke outlet pipe (102) on the top cover (1), characterized in that... The base (3) is provided with a vortex module (304). The vortex module (304) includes a rotating platform (3041) and several fan blades (3042) with equal inclination angles installed on the side wall of the rotating platform (3041). The rotating platform (3041) is fixedly installed in the center of the inner cavity of the base (3) by a fixing column connected to the bottom. The fixing column is perpendicular to the plane where the rotating platform (3041) is located. Each fan blade (3042) can rotate around the rotating platform (3041). An air inlet pipe (302) is opened on the side wall of the base (3) below the vortex module (304).

2. The cyclone electrostatic precipitator as described in claim 1, characterized in that: The dust removal module (2) includes an outer cylinder (203) set on the base (3) and a plurality of through pipes (201) inside the outer cylinder (203). The plurality of through pipes (201) are arranged vertically in a matrix. Two partitions (202) are also sealed at the upper and lower parts of the outer cylinder (203). The upper and lower ends of the matrix formed by the through pipes (201) pass through the corresponding partitions (202). The outermost through pipes (201) of the matrix are sealed to the outer wall surface of the partitions (202).

3. The cyclone electrostatic precipitator as described in claim 2, characterized in that: The top cover (1) is provided with a spraying module (103) on its side wall. The spraying module (103) includes an inlet pipe (1031) and an annular spraying ring (1032) at one end of the inlet pipe (1031). The plane of the spraying ring (1032) is parallel to the partition plate (202). Several nozzles (1033) are evenly arranged at the lower part of the spraying ring (1032). The other end of the inlet pipe (1031) passes through the top cover (1) and connects to the water circuit. After the cleaning liquid enters through the inlet pipe (1031), it passes through the spraying ring (1032) and is sprayed out from the nozzles (1033). It flows down along the inner wall of each pipe (201) and flows out through the outlet pipe (303) set on the lower side wall of the base (3).

4. The cyclone electrostatic precipitator as described in claim 3, characterized in that: The nozzle (1033) is a spiral nozzle.

5. The cyclone electrostatic precipitator as described in claim 3, characterized in that: The top cover (1) has an inspection port A (101) on the side wall above the spraying module (103), and the base (3) has an inspection port B (301) on the side wall above the vortex module (304).

6. The cyclone electrostatic precipitator as described in claim 3, characterized in that: The liquid outlet pipe (303) is at a lower horizontal height than the air inlet pipe (302).

7. The cyclone electrostatic precipitator as described in claim 1, characterized in that: The tilt angle of each fan blade (3042) is 10-15 degrees.

Images