A sulfuric acid neutralization device for fabric printing and dyeing wastewater
A printing and dyeing wastewater and sulfuric acid technology, which is applied in the field of spinning machinery, can solve the problems of high hydrochloric acid volume, high cost, and affecting the neutralization efficiency of alkaline wastewater, and achieve the effects of fast neutralization efficiency, low cost, and good application prospects
Active Publication Date: 2017-03-15
WUJIANG JINYE WEAVING
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the existing alkaline wastewater in the printing and dyeing wastewater, which requires an acidic solution for neutralization. Most of the existing acidic solutions are neutralized with hydrochloric acid, which requires a large amount of hydrochloric acid and high cost. Problems Affecting Neutralization Efficiency of Alkaline Wastewater
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[0015] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0016] Such as figure 1 As shown, a sulfuric acid neutralization device for fabric printing and dyeing wastewater includes a sulfuric acid storage tank 1, an acid-resistant tank 2, a metering tank 3, a dilution tank 4, a compressed air machine 5, and a neutralization reaction tank 6, and the output of the sulfuric acid storage tank 1 end is connected to the input end of the acid-resistant pool 2 through the first valve 7, using sulfuric acid instead of traditional hydrochloric acid to neutralize alkaline printing and dyeing wastewater, low cost, energy saving and environmental protection, the output end of the acid-resistant pool 2 is connected to the input end of the metering tank 3 connection...
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The invention discloses a fabric dyeing wastewater sulfuric acid neutralization plant which comprises a sulfuric acid storage tank, an acid-resistant tank, a metering tank, a diluting tank, an air compressor and a neutralization reaction tank, wherein an output end of the sulfuric acid storage tank is connected with an input end of the acid-resistant tank through a first valve; an output end of the acid-resistant tank is connected with an input end of the metering tank; an output end of the metering tank is connected with an input end of the diluting tank through a second valve; the diluting tank is also provided with a water inlet end; the bottom of the diluting tank is provided with the air compressor; an output end of the diluting tank is connected with an acid solution inlet end of the neutralization reaction tank through a third valve; alkaline dyeing wastewater is arranged in the neutralization reaction tank; the upper part of the neutralization reaction tank is provided with a wastewater inlet end; and the lower part of the neutralization reaction tank is provided with a water outlet end. The fabric dyeing wastewater sulfuric acid neutralization plant has the advantages of high neutralization efficiency, low cost, energy saving, environment friendliness and simple structure, adopts the sulfuric acid instead of the traditional hydrochloric acid to perform the alkaline dyeing wastewater neutralization, is easy to implement and has favorable application prospects.
Description
technical field [0001] The invention relates to a sulfuric acid neutralization device for fabric printing and dyeing wastewater, which belongs to the technical field of spinning machinery. Background technique [0002] In the process of textile finishing and dyeing, a large amount of printing and dyeing wastewater needs to be produced. It is an urgent problem to be solved to treat printing and dyeing wastewater to reduce pollution and realize energy conservation and environmental protection. At present, there is a large amount of alkaline wastewater in printing and dyeing wastewater, which needs to be neutralized by an acidic solution. The existing acidic solution is mostly neutralized by hydrochloric acid, which is weak in acidity, requires a large amount of hydrochloric acid, and has a high cost. The neutralization efficiency of sexual wastewater. Contents of the invention [0003] The purpose of the present invention is to overcome the existing alkaline wastewater in t...
Claims
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IPC IPC(8): C02F1/66C02F103/30
Inventor 张福明
Owner WUJIANG JINYE WEAVING