Salt dust waste gas purification and recovery device and its use method

Abstract

The invention provides a saline dust exhaust purification and recovery device, which can perform innocent treatment on saline dust exhaust and recover sodium chloride in the saline dust exhaust and is suitable for industrial batch production. The saline dust exhaust purification and recovery device comprises an incinerator of which the waist diameter is larger than the calibers of the upper end and the lower end, and further comprises a mixing chamber connected with the incinerator through a pipeline, wherein the mixing chamber is connected with a saline dust exhaust pipeline and also connected with a combustor through a pipeline; the combustor is connected with a natural gas pipeline and an air pipeline; the side wall of the incinerator is connected with a tail gas outlet, a salt film outlet is formed in the bottom of the incinerator, a cooling turntable is supported under the salt film outlet, and a rotary scraper in transmission connection with a motor is arranged on the upper end surface of the cooling turntable; cooling devices are arranged on the lower end surface of the cooling turntable; the mixing chamber is connected with the incinerator through a mixed gas channel; and a connection structure allowing gas to enter in the tangential direction of the inner wall of the incinerator is arranged between the mixed gas channel and the inner wall of the incinerator.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a device for purifying and recovering salty dust waste gas. Background technique [0002] Salt-containing dust waste gas is one of the "three wastes" and is the main pollutant in the production of pesticides and intermediates. It contains 0.05-0.5% of dioxin and other organic substances, and 0.1-1% of sodium chloride dust. Under technical conditions, due to the lack of equipment suitable for industrialized large-scale processing, it can only be allowed to discharge freely, causing huge environmental pollution and waste of resources. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a salt-containing dust waste gas purification and recovery device, which can perform harmless treatment of salt-containing dust waste gas and recover sodium chloride therein, and is suitable for industrialized mass production. [0004...

AI Technical Summary

Problems solved by technology

[0002] Salt-containing dust waste gas is one of the "three wastes" and is the main pollutant in the production of pesticides and intermediates. It contains 0.05-0.5% of dioxin and other organic substances, and 0.1-1% of sodium chloride dust. Under technical conditions, due to the lack of equipment suitable for industrialized large-scale processing, it can only be allowed to discharge freely, causing huge environmental pollution and waste of resources

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