What causes fiberglass pipes to burn?
Thread Content
Glass kiln flue gas desulfurization, desulfurization catalyst activated carbon, flue gas volume of 30,000 cubic meters, temperature 70°C, flue gas contains 17% oxygen, 400mg sulfur dioxide, 1000mg nitrogen oxide, humidity 10%. The inlet FRP pipe and outlet FRP pipe of the desulfurization tower caught fire. The kiln outlet gas is connected to high-temperature electrostatic precipitator - SCR denitrification - desulfurization. The distance from the desulfurization inlet to the dust collector inlet is about 20m. 1. Are there sparks in the desulfurization import? 2. The FRP interface is wrapped with vinyl resin and fiberglass cloth. Will this piece react with sulfuric acid/nitric acid and release heat, causing a fire? 3. The anti-corrosion materials in the desulfurization tower volatilize flammable gas at 70°C, which may release heat under certain conditions and cause combustion.
The inlet of the desulfurization tower is 70°C, the catalyst bed temperature is 50°C, and the ignition point of activated carbon is 240°C.
The outlet gas is burned and desulfurized. The oxygen content is already very low and combustion is about to occur. . . . . .
Combustion occurs only when 3 conditions are met. Check it out.
The dust removal efficiency is reduced. High-temperature dust enters the pipe. The pipe may have leaks and enters the air. The dust passes through the pipe at high speed and will cause friction.
Our chief technical engineer also explained this. Currently, a flame retardant is added before the desulfurization tower, which should avoid this situation. Thank you very much! ! !
Yes, activated carbon substrate, in granular form.
This glass kiln uses pure oxygen combustion. The maximum oxygen content of the flue gas entering the desulfurization tower should be 20.1%, and the stable oxygen content is 18%.
At present, all areas that may cause combustion have been rectified and are currently in the testing phase.