Integrated device for synergistic treatment of flue gas in production line of electronic glass all-oxygen melting furnace

Abstract

The invention discloses an integrated device for synergistic treatment of flue gas in a production line of an electronic glass all-oxygen melting furnace. The integrated device comprises a sodium bicarbonate storage and transportation part, a dry method treatment part, an ammonia gas supply part, a catalyst filtering part and a byproduct collection part, wherein flue gas and sodium bicarbonate enter the dry method treatment part together for full reaction to achieve the aim of removing hydrogen chloride, boride and fluoride; then the catalyst filtering part denitrates the flue gas mixed with ammonia gas; through the cooperation of the sodium bicarbonate storage and transportation part, the dry method treatment part, the ammonia gas supply part, the catalyst filtering part and the byproductcollection part, hydrogen chloride, boride and fluoride are removed from the flue gas, and a catalyst filter dust separator can be used to further denitrate the flue gas, remove particulate matters and purify the flue gas, so that the emission of the flue gas meets an emission standard.

Description

technical field [0001] The invention relates to the technical field of flue gas treatment of electronic glass full-oxygen kiln, in particular to an integrated device for synergistic processing of flue gas from a production line of electronic glass full-oxygen melting kiln. Background technique [0002] In 2013, the "Emission Standard of Air Pollutants for the Electronic Glass Industry" (GB 29495-2013) was officially promulgated, and the relevant emission limits are as follows: [0003] Particulate matter limit 50mg / m 3 , sulfur dioxide limit 400mg / m 3 , Nitrogen oxide limit 700mg / m 3 , hydrogen chloride 30mg / m 3 , Fluoride 5mg / m 3 . [0004] The relevant emission indicators of the "Emission Standards of Air Pollutants for the Electronic Glass Industry" basically refer to the "Emission Standards of Air Pollutants for the Flat Glass Industry" (GB 26453-2011). Draft for comments) has been issued to tighten the emission limits of flat glass, and the electronic glass indust...

AI Technical Summary

Problems solved by technology

[0007] 1. The amount of flue gas is low, the pollutants in the flue gas are complex, and the electrode line of the high-temperature electrostatic precipitator is easy to corrode;

[0008] 2. The initial start-up stage of the high-temperature electrostatic precipitator requires about 8 hours of preheating, and some particles that have not been collected by the high-temperature electrostatic precipitator enter the SCR catalyst with the flue gas, which is likely to cause catalyst poisoning;

[0009] 3. The amount of flue gas is low, and the proportion of compressed air brought in by the soot blowing of the catalyst is relatively large, resulting in an increase in emission concentration, which is not conducive to the stable operation of the system

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