Coated sand casting waste gas treatment method

Coated sand casting waste gas treatment method

coated sand casting is used in automotive hydraulic parts, diesel engines, engines and other mechanical industries. In the casting process, quartz sand is used as raw sand, thermoplastic phenolic resin, urotropine and reinforcing agent. Coated sand casting produces a large amount of water vapor and resin, calcium stearate, urotropine, (tin) metal alloy and other harmful substances, ammonia gas decomposed by chemical reaction at 1500 ℃ at high temperature, dimensionless and other volatile organic waste gases.

What kind of treatment equipment should be used for waste gas treatment of coated sand casting? At present, organic waste gas treatment methods include activated carbon adsorption method, high temperature plasma incineration method, photocatalytic deodorization method, pulse bag dust removal method, catalytic combustion method, etc.

According to the nature of coated sand waste gas, combined with environmental protection requirements, pulse bag dust collector is adopted. Photolysis deodorization equipment for processing

the cast exhaust gas enters the pulse bag filter through the air pipe, and the particulate dust is separated out of the ash ash hopper, and then enters UV in the photocatalytic deodorization equipment, high-energy ultraviolet radiation is used to make organic matter ( VOCs) The exhaust gas undergoes a photochemical reaction, and finally degrades CO2, H2O and other harmless substances, introduced into the fan from the exhaust pipe to meet the discharge standards.