Device and method for recovering exhaust in bromine packaging

Abstract

The invention discloses a device and a method for recovering tail gas in bromine packaging. The tail gas with bromine volatilized in a packaging process enters a mist eliminator through an exhaust collection hood and a blower; the bromine is absorbed by absorption liquid; the absorption liquid enters an absorption tower; air and the unabsorbed bromine enter a blowing-off tower; the bromine in brine water is blown into the air; the bromine-contained air enters a conveying pipeline; a sulfite solution absorbs the bromine in the bromine-contained air; the bromine-contained air then enters the absorption tower; the incompletely-absorbed bromine is sufficiently absorbed in the absorption tower once more; the absorption liquid flows out; the absorbed tail gas is absorbed by the blower to enter the mist eliminator for being subjected to mist-eliminating; and then the absorbed tail gas enters the blowing-off tower for being subjected to cyclic bromine-blowing. The device disclosed by the invention has a simple structure and is convenient to operate; bromine steam volatilized in air in the packaging process can be more completely recovered; the problems of evaporating, emitting, dripping and leaking in a packaging line are completely solved; the waste of bromine resources is reduced; the environment pollution is reduced; the device and the method disclosed by the invention are beneficial to environmental protection; the health and the safety for human are ensured; and the economic benefit for enterprises is increased.

Description

technical field [0001] The invention relates to the field of bromine preparation, in particular to a tail gas recovery device and recovery method in the bromine packaging process. Background technique [0002] Bromine packaging is the last process of bromine production. Generally, the bromine production industry directly packs the product bromine into 30kg / bottle ceramic bottles for storage. There are a small number of high-yield enterprises that store them in enamel tanks, and then distribute them into ceramic bottles or directly fill them into enamel tank transport vehicles. Because bromine is a volatile liquid, no matter which packaging method is used for sub-packaging or filling, the exposed part of the pipeline will contain bromine vapor that will volatilize into the air, which will not only cause a waste of bromine, but also cause serious damage to the surrounding environment. pollute. If the gas is inhaled, it will burn the respiratory organs of the human body, and ...

AI Technical Summary

Problems solved by technology

Although the device protects the operating workers, it still cannot solve the waste of resources and environmental pollution

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