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Acid bath washing dust removal device and method

A technology for washing, dust removal and acid bathing, applied in chemical instruments and methods, separation methods, alkali metal sulfites/sulfites, etc., to achieve the effect of increasing recovery routes, reducing sources and reducing pressure

Active Publication Date: 2021-03-12
SATERI JIUJIANG FIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, the purpose of the present invention is to provide a kind of acid bath washing and dedusting device and method, which can solve the problem of the treatment of waste gas from the roasting of Yuanming powder in the prior art

Method used

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  • Acid bath washing dust removal device and method
  • Acid bath washing dust removal device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] This embodiment provides an acid bath cleaning and dedusting device, which includes a tank body 1, a cover body 2 that covers the tank body 1, and a circulation device 3 arranged outside the tank body 1;

[0038] The tank body 1 is provided with a liquid-gas distributor 4 in the middle of the vertical direction, and the liquid-gas distributor 4 divides the tank body 1 into an upper tank body 5 and a lower tank body 6;

[0039] The upper tank body 5 is provided with a spray device 7 for spraying acid bath water downward;

[0040] The lower part of the lower tank body 6 is a liquid tank capable of holding acid bath water, and the lower tank body 6 is also provided with a gas inlet 8 for passing into the tank body 1 to dry waste gas of sodium sulfate. The gas inlet 8 is arranged above the liquid level of the acid bath water; the bottom of the lower tank body 6 has a liquid outlet 9 capable of discharging the acid bath water;

[0041] The inlet end of the circulation devic...

Embodiment 2

[0046] This embodiment provides an acid bath cleaning and dedusting method, which includes using the acid bath cleaning and dedusting device described in Example 1 to use acid bath water to spray and dedust the waste gas from the drying of sodium sulfate. Specifically, it includes the following steps:

[0047] 1) Add acid bath water into the dust removal device, and make the liquid level of the acid bath water lower than the gas inlet 8, wherein the acid bath water is the acid bath water recovered from viscose fiber production.

[0048] 2) Open the circulation device 3 so that the acid bath water in the lower tank body 6 is delivered to the spray device 7 and sprayed downward;

[0049] 3) Feed Yuanming powder into the tank body 6 through the gas inlet 8 to dry waste gas;

[0050]4) The exhaust gas from drying sodium sulfate and the acid bath water sprayed downward by the spray device 7 fully contacts in the liquid gas distributor 4 so that the dust in the exhaust gas from dryi...

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Abstract

The invention relates to the technical field of waste gas treatment, in particular to an acid bath washing dust removal device and method, and the device comprises a tank body, a cover body covering the tank body and a circulating device arranged outside the tank body; a liquid-gas distributor is arranged in the middle of the tank body in the vertical direction and divides the tank body into an upper tank body and a lower tank body; a spraying device for spraying acid bath water downwards is arranged in the upper tank body; a liquid containing groove capable of containing acid bath water is formed in the lower portion of the lower tank body, wherein a gas inlet used for introducing anhydrous sodium sulphate drying waste gas into the tank body is further formed in the lower tank body, and the gas inlet is formed above the liquid level of the acid bath water; a liquid outlet capable of discharging the acid bath water is formed in the bottom of the lower tank body; and the inlet end of the circulating device is communicated with the lower tank body through a pipeline. By means of the technical scheme, the problem of anhydrous sodium sulphate roasting waste gas treatment in the prior art can be solved.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to an acid bath cleaning and dedusting device and method. Background technique [0002] Viscose fiber acid bath mainly includes a solution made of sulfuric acid, sodium sulfate and zinc sulfate, which can solidify and spin viscose, which is an important step in the production of viscose fiber. The content of each component in the acid bath and the solution are clear and clean Temperature, temperature, etc. are very important to the quality of viscose fiber. The acid bath process of viscose fiber will consume a large amount of sulfuric acid to generate sodium sulfate. After reaching saturation, sodium sulfate will precipitate on viscose fiber, which will affect the curing time of viscose. , The viscose curing bath will also bring impurities such as sulfides, short fibers, and rubber blocks, which will cause the solution to be turbid. Therefore, the acid bath for viscose n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D47/06C01D5/00
CPCB01D47/06C01D5/00
Inventor 兰伟宝王兵付敏波刘兰燕姜术丹高磊张磊张良平彭善俊张文涛
Owner SATERI JIUJIANG FIBER CO LTD
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