Novel concentrated hydrochloric acid recovering mechanism for hydrochloric acid regeneration

Abstract

A novel concentrated hydrochloric acid recovering mechanism for hydrochloric acid regeneration comprises a concentration device and a pre-concentration tank which are connected with each other, wherein a sealing cover is arranged on the concentration device; a liquid storage tank is arranged below the sealing cover; a sealing bottom is arranged at the lower part of the liquid storage tank; a hydrochloric acid inlet is formed in the liquid storage tank; a duct is arranged at the hydrochloric acid inlet; a nozzle is arranged below the duct; an anti-corrosion layer is arranged in the liquid storage tank and comprises a ceramic layer and a filling layer; the filling layer is filled with an acid-resistant material. The pre-concentration tank is arranged beside the concentration device, concentrated hydrochloric acid can be pretreated before treatment, impurities of recovered hydrochloric acid can be settled, the purity of hydrochloric acid can be improved, hydrochloric acid can enter the concentration device for further concentration conveniently, and the production efficiency of hydrochloric acid is improved.

Description

technical field [0001] The invention relates to a hydrochloric acid concentration device, in particular to a novel concentrated hydrochloric acid recovery mechanism for hydrochloric acid regeneration. Background technique [0002] Many iron and steel enterprises need to pickle the produced steel with hydrochloric acid to clean the rust on the outer surface of the steel to make the outer surface of the steel more tidy. Some enterprises need to use concentrated hydrochloric acid. In the process of using concentrated hydrochloric acid, there will be There is a lot of concentrated hydrochloric acid that cannot be recovered well after use, and some cotton cloth manufacturers need to use hydrochloric acid for pickling treatment, which can degrade the dyes in cotton cloth, but a lot of hydrochloric acid is a lot of waste hydrochloric acid after pickling equipment Without good recycling, waste hydrochloric acid cannot be discharged at will. At present, a lot of waste hydrochloric ac...

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Problems solved by technology

[0002] Many iron and steel enterprises need to pickle the produced steel with hydrochloric acid to clean the rust on the outer surface of the steel to make the outer surface of the steel more tidy. Some enterprises need to use concentrated hydrochloric acid. In the process of using concentrated hydrochloric acid, there will be There is a lot of concentrated hydrochloric acid that cannot be recovered well after use, and some cotton cloth manufacturers need to use hydrochloric acid for pickling treatment, which can degrade the dyes in cotton cloth, but a lot of hydrochloric acid is a lot of waste hydrochloric acid after pickling equipment Without good recycling, waste hydrochloric acid cannot be discharged at will. At present, a lot of waste hydrochloric acid can only be discharged into the urban wastewater discharge system after wastewater treatment, causing certain environmental pollution and affecting the surrounding environment. The current When the recycling organization is in use, it directly discharges the waste gas, which does not meet the emission standards of the environmental protection department and affects the surrounding ecological environment.

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