CN210993507U

CN210993507U - Venturi waste gas purification device

Info

Publication number: CN210993507U
Application number: CN201921435481.3U
Authority: CN
Inventors: 仇云成
Original assignee: Jiangsu Yayi Intelligence Equipment Co ltd
Current assignee: Jiangsu Yayi Intelligence Equipment Co ltd
Priority date: 2019-08-31
Filing date: 2019-08-31
Publication date: 2020-07-14
Anticipated expiration: 2029-08-31

Abstract

The utility model discloses a Venturi waste gas purification device, which comprises an air inlet pipe and a demisting tower; the middle lower part of the demisting tower is communicated with an air inlet pipe, and the bottom of the demisting tower is provided with a wastewater recovery tank; a demister and a packing layer are sequentially arranged in the demisting tower from top to bottom; the demister comprises a cylinder body, and an upper swirl plate layer, a middle swirl plate layer and a lower swirl plate layer are sequentially arranged in the cylinder body from top to bottom; the upper vortex plate and the lower vortex plate are identical in structure and are symmetrically arranged, and the air inlet pipe comprises a Venturi tube, a buffer pipe, a diffusion pipe and a spraying pipe which are sequentially communicated and connected; the spray pipe is communicated and connected with the demisting tower; and the top of the spray pipe is provided with a spray head. The utility model discloses a venturi exhaust gas purification device, effectual quick waste gas to after the spraying is handled, and the waste gas after the processing reaches emission standard, and is friendly to the environment, and with low costs, area is little.

Description

Venturi waste gas purification device

Technical Field

The invention relates to the technical field of waste gas treatment, in particular to a Venturi waste gas purification device.

Background

The electrophoresis spraying line is a common spraying line for automobile spraying and is used for spraying and assembling automobile parts and automobile shells.

The existing spraying line includes: the device comprises a full-automatic assembly line (conveying system), a fixed automatic spraying chamber (spraying system), a drying channel type drying chamber drying system, a UV curing chamber (curing system) and a dust removal system. And the workpiece to be sprayed enters the spraying system through a full-automatic assembly line, is sprayed by the fixed automatic spray gun, then enters the drying system for drying, then enters the UV curing chamber for curing, and the spraying and the mounting are finished. In the whole working line, the spraying chamber, the curing chamber and the drying chamber are connected with a dust removal system to effectively remove dust.

The main harmful substances in the spraying waste gas are organic waste gas which can be discharged after being effectively removed. The existing organic waste gas treatment device mainly comprises an active carbon adsorption device and an organic waste gas treatment device, wherein the active carbon adsorption device mainly adopts active carbon to adsorb organic waste gas; the organic waste gas treatment device mainly adopts chemical reagent oxidation treatment and photochemical catalytic oxidation treatment; on one hand, the cost is high, the replacement cost of the activated carbon is high, and the photocatalytic speed is slow; on the other hand, the adsorption effect of the waste gas is poor, so that the treatment process is long, the treatment period is long, and the occupied area of the equipment is large.

Disclosure of Invention

In order to solve the problems, the invention discloses a venturi waste gas purification device which can effectively and quickly treat sprayed waste gas, the treated waste gas reaches the emission standard, and the venturi waste gas purification device is environment-friendly, low in cost and small in occupied area.

In order to achieve the above purpose, the invention provides the following technical scheme:

a Venturi waste gas purification device comprises an air inlet pipe and a demisting tower; the middle lower part of the demisting tower is communicated with an air inlet pipe, and the bottom of the demisting tower is provided with a wastewater recovery tank; a demister and a packing layer are sequentially arranged in the demisting tower from top to bottom; the demister comprises a cylinder body, and an upper swirl plate layer, a middle swirl plate layer and a lower swirl plate layer are sequentially arranged in the cylinder body from top to bottom; the upper vortex plate and the lower vortex plate are identical in structure and are symmetrically arranged, and the air inlet pipe comprises a Venturi tube, a buffer pipe, a diffusion pipe and a spraying pipe which are sequentially communicated and connected; the spray pipe is communicated and connected with the demisting tower; and the top of the spray pipe is provided with a spray head.

Further, the structure of the lower rotational flow layer comprises a concave ring and a rotational flow plate; one end of the rotational flow plate is fixedly connected with the concave ring, and the other end of the rotational flow plate is fixedly connected with the barrel.

Furthermore, the packing layer is one of Raschig rings and pall rings which are arranged in disorder. The filler is arranged, so that the sprayed waste gas enters the filler layer, the combination of water and liquid phases is further realized, and organic matters and dust in the waste gas are further dissolved into the water.

Furthermore, the spray header is connected with a spray water pipe, and the spray water pipe is connected with a wastewater recovery tank through a circulating water system. The spray header is supplied with water by a spray water pipe, and the circulating water system adopts the prior art or a circulating water treatment system provided by the company, and mainly recycles harmful substances in the wastewater after the harmful substances are treated.

Further, the wastewater recovery tank is connected with a wastewater treatment device through a water pump. Since the spray water contains a large amount of organic substances, it is necessary to treat the waste water, and the spray waste water can be treated by a waste water treatment apparatus in this company.

Further, the buffer tube and the spray pipe are both cylindrical pipes. The buffer tube is a cylindrical tube and has a buffering effect on waste gas passing through the Venturi tube, so that the waste gas is buffered to a certain extent.

The invention has the following beneficial effects:

waste gas enters the venturi tube firstly, and then enters the diffusion tube again to diffuse gas through the quick effectual water conservancy diversion of venturi tube to waste gas, then enters into the shower again, and the shower water plays the effect of spraying and washing to waste gas, realizes the double-phase mixture of gas-liquid. Harmful substances, particle dust and the like in the waste gas are combined with water and are dissolved into the water, and meanwhile, water vapor is condensed into macromolecules in the filler and then falls into a waste water recovery tank.

Compared with the prior art, harmful substance mass energy in the waste gas is quick to be absorbed, enters into and sprays the aquatic, and the waste gas is discharged after handling fast, and whole device area is little, and easy installation is placed, and is with low costs.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the lower cyclone plate layer according to the present invention;

FIG. 3 is a schematic illustration of a demister configuration of the present invention.

Wherein: the device comprises an air inlet pipe 1, a demisting tower 2, a wastewater recovery tank 3, a demister 4, a cylinder 41, an upper swirling flow plate layer 42, a middle turbulent flow layer 43, a lower swirling flow plate layer 44, a middle concave ring 441, a swirling flow plate 442, a packing layer 5, a Venturi tube 11, a buffer pipe 12, a diffusion pipe 13, a spray pipe 14 and a spray head 6.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.

Example 1

A venturi exhaust gas purification device as shown in fig. 1-3, comprising an air inlet pipe 1, a demisting tower 2; the middle lower part of the demisting tower is communicated with an air inlet pipe, and the bottom of the demisting tower is provided with a wastewater recovery tank 3; a demister 4 and a packing layer 5 are sequentially arranged in the demisting tower from top to bottom; the demister comprises a cylinder body 41, wherein an upper swirl plate layer 42, a middle turbulence layer 43 and a lower swirl plate layer 44 are sequentially arranged in the cylinder body from top to bottom; the upper vortex plate and the lower vortex plate are the same in structure and are symmetrically arranged, and the air inlet pipe comprises a Venturi tube 11, a buffer pipe 12, a diffusion pipe 13 and a spray pipe 14 which are sequentially communicated and connected; the spray pipe is communicated and connected with the demisting tower; the top of the spray pipe is provided with a spray header 6.

In the embodiment, the middle turbulent layer is a packing layer, and small porous materials such as activated carbon, vermiculite and the like are used as the packing, so that the water vapor is adsorbed and the air flow is effectively disturbed. Of course, the middle turbulence layer can also directly adopt other porous materials in the prior art as the turbulence layer.

In this embodiment, the structure of the lower swirling layer includes a concave ring 441, a swirling plate 442; one end of the rotational flow plate is fixedly connected with the concave ring, and the other end of the rotational flow plate is fixedly connected with the barrel.

In the embodiment, the packing layer is one of Raschig rings and pall rings which are arranged out of order. The filler is arranged, so that the sprayed waste gas enters the filler layer, the combination of water and liquid phases is further realized, and organic matters and dust in the waste gas are further dissolved into the water.

In this embodiment, the shower head is connected with a shower pipe, and the shower pipe is connected with a wastewater recovery tank through a circulating water system. The spray header is supplied with water by a spray water pipe, and the circulating water system adopts the prior art or a circulating water treatment system provided by the company, and mainly recycles harmful substances in the wastewater after the harmful substances are treated.

In this embodiment, the wastewater recovery tank is connected to the wastewater treatment device through a water pump. Since the spray water contains a large amount of organic substances, it is necessary to treat the waste water, and the spray waste water can be treated by a waste water treatment apparatus in this company.

In this embodiment, the buffer tube and the shower tube are both cylindrical tubes. The buffer tube is a cylindrical tube and has a buffering effect on waste gas passing through the Venturi tube, so that the waste gas is buffered to a certain extent.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. A venturi exhaust gas purification device, its characterized in that: comprises an air inlet pipe and a demisting tower; the middle lower part of the demisting tower is communicated with an air inlet pipe, and the bottom of the demisting tower is provided with a wastewater recovery tank; a demister and a packing layer are sequentially arranged in the demisting tower from top to bottom; the demister comprises a cylinder body, and an upper swirl plate layer, a middle swirl plate layer and a lower swirl plate layer are sequentially arranged in the cylinder body from top to bottom; the upper vortex plate and the lower vortex plate are identical in structure and are symmetrically arranged, and the air inlet pipe comprises a Venturi tube, a buffer pipe, a diffusion pipe and a spraying pipe which are sequentially communicated and connected; the spray pipe is communicated and connected with the demisting tower; and the top of the spray pipe is provided with a spray head.

2. A venturi exhaust gas purification device according to claim 1, wherein: the lower rotational flow layer structurally comprises a concave ring and a rotational flow plate; one end of the rotational flow plate is fixedly connected with the concave ring, and the other end of the rotational flow plate is fixedly connected with the barrel.

3. A venturi exhaust gas purification device according to claim 1, wherein: the packing layer is one of Raschig rings and pall rings which are arranged in disorder.

4. A venturi exhaust gas purification device according to claim 1 or 3, wherein: the spray header is connected with a spray water pipe, and the spray water pipe is connected with a wastewater recovery tank through a circulating water system.

5. A venturi exhaust gas purification device according to claim 1, wherein: the buffer tube and the spray pipe are both cylindrical pipes.