Concentrated hydrochloric acid recovery system for hydrochloric acid regeneration

Abstract

The invention relates to the technical field of hydrochloric acid regeneration and recovery, in particular to a concentrated hydrochloric acid recovery system for hydrochloric acid regeneration, which comprises a box body, a spray head is fixedly connected to the position, close to the upper end, of the left side of the box body, an air outlet pipe is fixedly connected to the position, close to the upper end, of the right side of the box body, and a condensation pipe is fixedly connected to the right side of the air outlet pipe; a liquid storage tank is fixedly connected to the right side of the condensation pipe, a heating plate is fixedly connected to the inner surface of the lower end of the box body, an iron removing mechanism is arranged on the inner surface of the box body, and an iron collecting box is fixedly connected to the right side of the inner surface of the lower end of the box body; the iron removing mechanism comprises a supporting plate, a rotating rod, fan blades, a belt, a reciprocating lead screw, a lead screw nut, a sliding groove, a motor, a coil and an adsorption plate, iron powder generated on the surface of the heating plate is removed in time through the iron removing mechanism, and the situation that due to long-term accumulation of the iron powder during recycling, the working efficiency of the heating plate is reduced, and the hydrochloric acid recycling rate is affected is avoided; and the practicability of the device is improved.

Description

technical field [0001] The invention relates to the technical field of hydrochloric acid regeneration and recovery, in particular to a concentrated hydrochloric acid recovery system 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 Not very well recycled. [0003] However, when treating waste hydrochloric acid with hydrochloric acid...

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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 not well recycled

[0003] However, when treating waste hydrochloric acid with hydrochloric acid, when treating some ferrous hydrochloric acid, the interior of the waste hydrochloric acid contains a large amount of iron ions. Under high temperature conditions, the waste hydrochloric acid will generate iron compounds and hydrochloric acid gas. Long-term iron accumulation in The upper end of the heating plate will lead to a decrease in heating efficiency. At the same time, under high temperature conditions, iron oxides have mobile adhesion. Simply using magnets will lose magnetism at high temperatures, resulting in disadvantages of processing:

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