Comprehensive processing technology for conducting deep dust removal, denitration and desulphurization on glass kiln smoke

Abstract

The invention discloses a comprehensive processing technology for conducting deep dust removal, denitration and desulphurization on glass kiln smoke, and relates to the field of glass kiln smoke processing. Raw material smoke is discharged into a smoke removal flue, magnesium-containing powder and partly-collected dust are injected into the raw material smoke and mixed with the raw material smoke, and mixed smoke is obtained; the obtained mixed smoke is injected into a bag type dust remover to be filtered, and low-dust smoke and dust are obtained; dust is divided into two parts; magnesium-containing powder is added to one part, the part is injected back into the dust removal flue through a gas flow jetting device to be mixed with the raw material smoke; water is added to the other part, and desulphurization slurry is prepared; the obtained low-dust smoke is injected into a low-temperature SCR denitration device to be subjected to denitration, and low-nitrogen and low-dust smoke is obtained; the low-nitrogen and low-dust smoke is injected into a wet type desulphurization device, the prepared desulphurization slurry is added for desulphurization, and waste gas is discharged into the atmosphere. Compared with the prior art, the comprehensive processing technology has the advantages that dust removal effect is good, denitration efficiency can be improved, recycle of waste is achieved, and smoke pollutant deep emission reduction is achieved.

Description

technical field

[0001] The invention relates to the field of flue gas purification, in particular to a comprehensive treatment process for deep dust removal, desulfurization and denitrification of glass kiln flue gas. Background technique

[0002] The flue gas produced by the glass kiln is one of the key industrial pollutants controlled in our country. At present, most glass furnaces mainly use coal gas as the fuel for high-temperature furnaces, and the concentration of particulate matter in the flue gas produced by them is about 8000mg / m 3 , NO x Concentration is 2000mg / m3, SO2 is about 800~1000mg / m3 3 . The current conventional dedusting and desulfurization and denitrification process is to first use the bag filter to remove the particulate matter, and then enter the low-temperature SCR section for NO x removal, and finally into the wet desulfurization equipment to remove SO 2 . However, because the glass furnace contains semi-volatile substances such as sodium salt ...

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