Desulfurizing and dedusting device

Abstract

A desulfurizing and dedusting device comprises a casing, wherein ammonia water is accommodated on the lower side of the inside of the casing; a driving shaft is arranged in the axial line direction of the casing; a plurality of filtering rotary tables are arranged on the driving shaft side by side; a spiral groove is formed in the rotating surface of each filtering rotary table; filter screen cloth is arranged on at least one side surface of each spiral groove; a plurality of connection reinforcing parts radially extending outwards from the driving shaft are arranged on at least one side surface of each spiral groove; a metal brush is arranged at the end part position of each connection reinforcing part. According to the desulfurizing and dedusting device, through the adoption of the filtering rotary tables with the spiral groove structures, the contact area of flue gas and ammonia water is greatly enlarged, the dedusting efficiency is improved, and periodical stopping for cleaning scale can be further avoided under the condition that no cleaning device needs to be additionally arranged, so that the desulfurizing and dedusting device can realize continuous and efficient operation, the use amount of ammonia water is reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to a deep purification technology for coal-fired flue gas discharges in industries such as electric power, chemical industry, metallurgy, and manufacturing, and in particular to a device for desulfurization and dust removal for removing sulfur and smoke in coal-fired flue gas. Background technique [0002] Coal-fired flue gas emissions from electric power, chemical industry, metallurgy, and manufacturing industries have a great impact on air pollution. Among them, harmful substances such as soot, sulfur dioxide, and nitrogen oxides contained in coal-burning flue gas are one of the root causes of air pollution, acid rain, and greenhouse effect. At present, my country has carried out large-scale flue gas desulfurization and dust removal projects, but the flue gas emissions still cannot meet the current standard requirements, and further treatment is still needed. [0003] Existing desulfurization and dust removal technologies often...

AI Technical Summary

Problems solved by technology

[0005] However, the desulfurization and dust removal devices used in the existing ammonia desulfurization technology still have the defects of low contact efficiency between flue gas and ammonia water or ammonia gas, and the crystallization generated by the reaction and the accumulation of dust in the flue gas affect the desulfurization and dust removal effect.

In order to avoid regular downtime to clean up scaling, the efficiency of the spraying equipment is very low, and the amount of ammonia water is large, making it difficult to maintain the continuous and efficient operation of the desulfurization and dust removal device

Images