High-concentration acid-base reaction device

Abstract

The invention discloses a high-concentration acid-base reaction device which comprises a reaction tank body, wherein the outer wall of the reaction tank body is of a two-layer structure; a cavity formed by the inner layer is a neutralization reaction tank; an interlayer, which is a running water layer, is arranged between the inner layer and the outer layer; a thick acid inlet and a thick alkali inlet are formed in the upper part of the neutralization reaction tank; a running water inlet is formed above the running water layer, and a hot water outlet is formed below the running water layer and is connected with a first circulating pump; the first circulating pump is connected with a heat exchanger; the heat exchanger is connected with drying equipment or heating equipment; a temperature instrument and a pH instrument are arranged in the neutralization reaction tank; the running water layer is provided with a conductivity detection instrument. The high-concentration acid-base reaction device has the benefits that for high-concentration acid-base reaction, the reaction temperature is reduced, and the operation safety is improved; by the adoption of the two-layer structure, leakage of the reaction tank body can be conveniently monitored; the heat exchanger is used for collecting and recycling heat generated by the reaction, so that the operation cost and the handling expenses of an enterprise are lowered.

Description

technical field [0001] The invention relates to equipment for chemical production, in particular to a high-concentration acid-base reaction device. Background technique [0002] In the chemical industry, there will be a lot of concentrated acid waste liquid or concentrated alkali waste liquid. If these high-concentration acid-base waste liquids are treated or discarded separately, the cost will be high or the pollution will be relatively large; Neutralization reaction; however, the high-concentration acid-base neutralization reaction will release a large amount of heat. The neutralization reaction tank currently used has the following problems: 1. The heat of reaction is large, and there are potential safety hazards; 2. If the neutralization reaction tank leaks, it will not It is easy to be found quickly, and the leakage directly leaks to the outside of the reaction tank, which is easy to cause corrosion to the equipment; 3. A large amount of heat released by the neutralizat...

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Problems solved by technology

[0002] In the chemical industry, there will be a lot of concentrated acid waste liquid or concentrated alkali waste liquid. If these high-concentration acid-base waste liquids are treated or discarded separately, the cost will be high or the pollution will be relatively large; Neutralization reaction; however, the high-concentration acid-base neutralization reaction will release a large amount of heat. The neutralization reaction tank currently used has the following problems: 1. The heat of reaction is large, and there are potential safety hazards; 2. If the neutralization reaction tank leaks, it will not It is easy to be found quickly, and the leakage directly leaks to the outside of the reaction tank, which is easy to cause corrosion to the equipment; 3. A large amount of heat released by the neutralization reaction is wasted and cannot be recycled, resulting in the loss of resources

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