A pickling pool air curtain side suction acid mist environmental protection device

Abstract

The invention discloses an air-curtain acid fog side suction environmental protection device for pickling tanks, and belongs to the technical field of recycling environmental protection for acid fog from the pickling tanks. The air-curtain acid fog side suction environmental protection device comprises a platform, a recycling tank and multiple pickling tanks, wherein the platform is distributed between the recycling tank and the multiple pickling tanks; the recycling tank is arranged beside the pickling tanks; an acid fog channel is formed in each of two sides of each pickling tank; the height of each acid fog channel is greater than that of each pickling tank; an air blowing pipe is arranged at the top of each acid fog channel; the air blowing pipes blow obliquely downward air flow towards the direction of the pickling tanks; the acid fog diffuses and rises up from the pickling tanks, and the air flow forms an air curtain to effectively isolate the rising acid fog; a fog suction opening is formed in a position, which is close to the edge of each pickling tank, on the inner side of each acid fog channel; the acid fog channels are communicated with the fog suction openings; negative pressure air flow is generated in the acid fog channels; under the dual action of the air curtain and side suction, the acid fog is controlled near to the liquid levels of the pickling tanks and then is quickly pumped out, so that harm to personnel and the environment due to diffusion of the acid fog into a workshop is prevented.

Description

technical field [0001] The invention relates to the technical field of acid mist recovery and environmental protection in pickling pools, in particular to an environmental protection device for acid mist suction on the side of an air curtain in a pickling pool. Background technique [0002] Hydrochloric acid is an aqueous solution of hydrogen chloride. It is a colorless and transparent monobasic strong acid. Hydrochloric acid is extremely volatile. Therefore, when you open the container containing concentrated hydrochloric acid, you can see white mist above it. It is actually the water in the air after the volatilization of hydrogen chloride. Small droplets of hydrochloric acid produced by the combination of steam, hydrochloric acid is transparent, colorless or yellow, has a pungent smell and strong corrosiveness, but because of its good rust and oil removal ability, it is widely used in the treatment of iron products. [0003] At present, a large number of iron products are...

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Problems solved by technology

[0003] At present, a large number of iron products are treated by soaking in the pickling pool. The pickling pool is filled with hydrochloric acid, especially when it is filled with new concentrated hydrochloric acid, a large amount of acid mist will be generated. Although adding a demister will reduce the acid mist, once In the case of cloudy and rainy days, the acid mist is basically impossible to deal with, resulting in a large amount of corrosion of steel structures and iron products in the entire workshop. What is more serious is that it seriously affects the working environment of workers and has a bad impact on the external environment.

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