A method and device for continuous treatment of flue gas

Abstract

The invention relates to a method and a device for continuously treating flue gas. The device is characterized by comprising an air guide pipe, an alkaline liquid injection device, a flue gas filter, an induced draft fan and a smoke pipe, the alkaline liquid injection device comprises an alkaline liquid configuration tank and a nozzle, the air guide pipe comprises a gas-liquid mixed reaction section and a drying section, the flue gas filter comprises a dust chamber, a flue-dust retainer and a clean gas chamber, a filter bag is arranged in the dust chamber, an opening of the filter bag is communicated with the clean gas chamber, a gas inlet is communicated with the air guide pipe, a clean gas exhaust port is communicated with an air inlet of the induced draft fan, an air outlet of the induced draft fan is communicated with the smoke pipe, and a compressed air jet is arranged right above the opening of the filter bag of the clean gas chamber and is connected with a compressed air source through an air pipe. Compared with the prior art, the device has the advantages that sulfide in the flue gas can be continuously removed, the content of solid matters in the flue gas emitted into atmosphere is low, and the flue gas meets the emission standard.

Description

technical field [0001] The invention relates to a flue gas treatment technology. Background technique [0002] The existing sulfide-containing flue gas is generally treated by spraying alkaline substances into the flue gas. Since the alkaline substances react with the compounds in the stream, solid substances are generally formed. If appropriate measures are not taken, these solid substances will The flue gas is discharged into the atmosphere. Although the chemical properties of these solid substances are stable, the solid substances discharged into the atmosphere will increase the dust content in the air. In severe cases, the excessive dust content will affect people's normal breathing. Contents of the invention [0003] The object of the present invention is to provide a continuous flue gas treatment method and device that can continuously remove sulfides in the flue gas, have less solid content in the flue gas discharged into the atmosphere, and meet emission standards....

AI Technical Summary

Problems solved by technology

[0002] The existing sulfide-containing flue gas is generally treated by spraying alkaline substances into the flue gas. Since the alkaline substances react with the compounds in the stream, solid substances are generally formed. If appropriate measures are not taken, these solid substances will The flue gas is discharged into the atmosphere. Although the chemical properties of these solid substances are stable, the solid substances discharged into the atmosphere will increase the dust content in the air. In severe cases, the excessive dust content will affect people's normal breathing.

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