CN213221468U

CN213221468U - Integrated tail gas absorption tower

Info

Publication number: CN213221468U
Application number: CN202021023355.XU
Authority: CN
Inventors: 李艳超; 刘心杨; 惠静; 孔德兴; 陈小妹
Original assignee: Wuxi New Kouta Environmental Protection Technology Co ltd
Current assignee: Wuxi New Kouta Environmental Protection Technology Co ltd
Priority date: 2020-06-07
Filing date: 2020-06-07
Publication date: 2021-05-18
Anticipated expiration: 2030-06-07

Abstract

The utility model discloses an integrated tail gas absorption tower, which comprises an oil and dust removing layer, a steam removing layer, a deep purification layer and a VOC absorption layer from bottom to top in sequence; the oil and dust removing layer is internally provided with liquid, the steam removing layer comprises a packing layer and a demister arranged at the upper part of the packing layer, and the deep purification layer is provided with PP cotton; the VOC absorbing layer is provided with activated carbon. The utility model discloses low in manufacturing cost, convenient operation, maintenance are simple, and the deep purification has washd waste gas on original washing exhaust basis, and the environmental protection is effectual, and steam recovery rate 99.9%, organic waste gas recovery rate 95%, energy-conserving 50%, reach the environmental protection standard, and the most reuse that can regenerate of materials such as tail gas treatment mode energy-conservation, inside filler and active carbon.

Description

Integrated tail gas absorption tower

Technical Field

The utility model relates to an integrated tail gas absorption tower relates to accurate spare part and washs the field, and the more specifically collection processing apparatus who relates to gases such as steam, VOC that produce in the production process that says so.

Background

In traditional spare part cleaning workshop, there is not too high requirement to operating personnel's operational environment and the production environment of cleaning operation, along with production level and the gradual improvement of environmental protection requirement, also higher and higher to the requirement of production operation environment, and in order to guarantee the cleanliness of product, the stable high efficiency of production quality and the improvement of personnel operational environment in many production assembly shops, the workshop environment sets up to the dust-free workshop of constant temperature and humidity.

In most cleaning equipment workshops, although the cleaning liquid is evaporated and a part of VOC is volatilized in the cleaning operation, the waste gas is collected and discharged by a special fog suction fan, the effect is not ideal enough, the constant-temperature and constant-humidity environment of a dust-free workshop is often influenced, and the load of facilities of the dust-free workshop is increased. In addition, the gases discharged to the atmosphere by the cleaning apparatus also have an influence on the environment to some extent. Therefore, the conventional waste gas treatment device is not suitable for the current production mode and environmental protection requirements.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is overcome among the prior art precision parts washs the defect that exhaust-gas treatment is not environmental protection in the field cleaning process, provides an integrated tail gas absorption tower of more environmental protection.

In order to solve the technical problem, the utility model provides a following technical scheme:

an integrated tail gas absorption tower comprises an oil and dust removing layer, a steam removing layer, a deep purification layer and a VOC absorption layer from bottom to top in sequence;

the oil and dust removing layer is internally provided with liquid, the vapor removing layer comprises a filler layer and a stainless steel demister arranged at the upper part of the filler layer, and the deep purifying layer is provided with PP cotton; the VOC absorbing layer is provided with activated carbon.

Further, deoiling dust removal layer is provided with inlet and waste gas air inlet including stock solution casing, stock solution casing's top, and waste gas air inlet department is provided with the air duct, and the end of air duct stretches into below the liquid level in the stock solution casing, and the stock solution casing still is provided with circulating filter device and liquid level controller, and the bottom of stock solution casing is provided with the leakage fluid dram.

Furthermore, the liquid of the oil removing and dust removing layer is organic cleaning agent or water added with acid-base neutralizing agent and surface oil removing type additive.

Furthermore, the filler in the filler layer of the steam removal layer is a Raschig ring or a pall ring made of stainless steel or plastic.

Further, the outside of the liquid storage shell is provided with a circulating filter device, the circulating filter device comprises a circulating pump, a filter and a circulating pipeline, and the circulating filter device is communicated with the oil removal dust removal layer through the circulating pipeline. The circulating filter device is used for filtering particle impurities in water, reduces maintenance difficulty, can perform filter function opening and closing control according to equipment running conditions, and outputs reminding signals for replacing filter elements.

The utility model discloses the beneficial effect who reaches is: the utility model discloses low in manufacturing cost, convenient operation, maintenance are simple, and the deep purification has washd waste gas on original washing exhaust basis, and the environmental protection is effectual, and steam recovery rate 99.9%, organic waste gas recovery rate 95%, energy-conserving 50%, reach the environmental protection standard, and the most reuse that can regenerate of materials such as tail gas treatment mode energy-conservation, inside filler and active carbon.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1

As shown in fig. 1, an integrated tail gas absorption tower sequentially comprises an oil and dust removing layer 1, a steam removing layer 2, a deep purification layer 3 and a VOC absorption layer 4 from bottom to top;

the oil and dust removing layer 1 is internally provided with liquid, the steam removing layer 2 comprises a steam removing shell 2-1, a packing layer 2-2 and a stainless steel demister 2-3 arranged at the upper part of the packing layer 2-2, and the deep purification layer 3 comprises a purification layer shell 3-1 and PP cotton 3-2 arranged in the shell 3-1; the VOC absorption layer 4 comprises a VOC absorption layer shell 4-1 and activated carbon 4-2 therein, and the top of the VOC absorption layer 4 is provided with a waste gas discharge port 4-3.

The oil removing and dust removing layer 1 comprises a liquid storage shell 1-1, a liquid inlet 1-5 and a waste gas inlet 1-2 are arranged at the top of the liquid storage shell 1-1, a gas guide pipe 1-7 is arranged at the position of the waste gas inlet 1-2, the tail end of the gas guide pipe 1-7 extends below the liquid level in the liquid storage shell 1-1, a circulating filter device 1-4 and a liquid level controller 1-3 are further arranged on the liquid storage shell 1-1, and a liquid outlet 1-6 is arranged at the bottom of the liquid storage shell. The liquid can be added with liquid types according to actual conditions, or medicaments such as acid-base neutralizing medicaments and surface oil removal type additives are added into water. After the waste gas contacts with the liquid, most soluble chemical substances and particle impurities in the gas are dissolved in the liquid, the circulating filter device 1-4 is used for filtering the particle impurities in the liquid, the maintenance difficulty is reduced, and the liquid storage body shell is provided with a liquid inlet and a liquid outlet for adding the liquid and the medicament and supplementing and draining the liquid during regular maintenance. The liquid level controllers 1-3 are used for monitoring the liquid level in the liquid storage shell in real time so as to ensure the normal operation of the tail gas absorption tower. The circulating filter device 1-4 can perform the opening and closing control of the filtering function and the output of the reminding signal of replacing the filtering element according to the running condition of the equipment.

The circulating filter device comprises a circulating pump 1-4-1, a filter 1-4-2 and a circulating pipeline 1-4-3, and the circulating filter device is communicated with the oil and dust removing layer 1 through the circulating pipeline 1-4-3. The circulating filter device is used for filtering particle impurities in water, reduces maintenance difficulty, can perform filter function opening and closing control according to equipment running conditions, and outputs reminding signals for replacing filter elements.

The packing in the packing layer of the steam removing layer is Raschig rings or pall rings made of stainless steel or plastic.

The utility model discloses a working process:

the fog-absorbing fan that cleaning equipment disposed collects the washing waste gas into the exhaust pipe, gets into the deoiling dust layer by the waste gas import inside, by the discharge of air duct end, the air duct end is located the inside below the liquid level of stock solution casing, and waste gas and liquid mix and contact back and get into the steam layer. Gas after first section deoiling dust removal at first carries out intensive mixing dispersion through the part of packing and then gets into the demister and assembles the big liquid drop with the droplet, realizes detaching waste gas middlings, then gets into the PP cotton and carries out the depth filtration of air, and the organic composition gas in the waste gas of the relative clean drying of active carbon adsorption at last, process the utility model discloses the waste gas after the processing is clean relatively, is discharged by exhaust emission mouth.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated tail gas absorption tower is characterized by sequentially comprising an oil and dust removing layer, a steam removing layer, a deep purification layer and a VOC absorption layer from bottom to top;

the oil and dust removing layer is internally provided with liquid, the steam removing layer comprises a packing layer and a demister arranged at the upper part of the packing layer, and the deep purification layer is provided with PP cotton; the VOC absorbing layer is provided with activated carbon.

2. The integrated tail gas absorption tower of claim 1, wherein the oil and dust removing layer comprises a liquid storage shell, a liquid inlet and a waste gas inlet are arranged at the top of the liquid storage shell, a gas guide pipe is arranged at the waste gas inlet, the tail end of the gas guide pipe extends below the liquid level in the liquid storage shell, the liquid storage shell is further provided with a circulating filter device and a liquid level controller, and a liquid outlet is arranged at the bottom of the liquid storage shell.

3. The integrated tail gas absorption tower of claim 1 or 2, wherein the liquid of the oil and dust removal layer is an organic cleaning agent.

4. The integrated tail gas absorption tower of claim 1, wherein the packing in the packing layer of the vapor removal layer is Raschig rings or pall rings made of stainless steel or plastic.

5. The integrated tail gas absorption tower of claim 1, wherein a circulation filtering device is arranged outside the liquid storage shell, the circulation filtering device comprises a circulation pump, a filter and a circulation pipeline, and the circulation filtering device is communicated with the oil removal and dust removal layer through the circulation pipeline.