Acid-base neutralization reaction chemical sewage treatment system based on CaCO3

Abstract

The invention discloses a CaCO3-based acid-base neutralization reaction chemical sewage treatment system which comprises a machine body shell, a reaction cavity is formed in the machine body shell, a first motor is mounted in the bottom wall of the reaction cavity, a first transmission shaft is mounted on the upper end face of the first motor, a first paddle is fixedly arranged on the first transmission shaft, and an evaporation cavity is formed in the right side of the reaction cavity; the evaporation cavity is internally provided with a desalting assembly capable of removing salt in sewage by utilizing waste heat released in an acid-base neutralization reaction; a heat release plate can evaporate sewage sprayed on the upper surface of the heat release plate under the cooperation of a heat absorption plate, the sewage is evaporated by using a large amount of heat released by an acid neutralization reaction, and salt in the sewage is separated out, and an arranged scraper can slide on the upper surface of the heat release plate under the driving of a second motor, so that the salt in the sewage can be separated out. The effect of scraping salt separated out from the upper surface of the heat release plate is achieved, the influence of salt accumulation on subsequent sewage evaporation is prevented, and the sewage evaporation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a CaCO3-based acid-base neutralization reaction chemical sewage treatment system. Background technique [0002] Industrial wastewater includes production wastewater, production sewage and cooling water. It refers to wastewater and waste liquid produced in the process of industrial production, which contains industrial production materials, intermediate products, by-products and pollutants produced in the production process lost with water. According to The composition and concentration of pollutants in wastewater can only be discharged after taking corresponding purification measures for disposal. At present, calcium carbonate is generally used in the process of acid removal to react with the acid in wastewater. [0003] In the prior art, calcium carbonate is generally poured into the sewage, and then a high-power stirring device is used to stir the sewage to achieve the...

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Problems solved by technology

[0003] In the prior art, calcium carbonate is generally poured into the sewage, and then a high-power stirring device is used to stir the sewage to achieve the effect of full neutralization, but the power consumption of the high-power stirring device is large, and the calcium carbonate The reaction with sewage produces a large amount of gas and heat, resulting in a large amount of energy consumption and waste, which is not in line with the concept of environmental protection, and the block calcium carbonate is not conducive to the neutralization reaction, the reaction processing speed is slow, and the salt obtained after the reaction is not very good. removal, not conducive to sewage treatment

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