Exhaust gas absorption section
Exhaust gas absorption tower energy recovery and environmental protection equipment are widely used in electric power, chemical industry, electrical and electronic, metallurgy, brewing and other fields of equipment. The exhaust gas dry absorption tower that has been used in the past can only neutralize and purify, and has not changed recycling for a long time. A good method makes a lot of energy wasted. Therefore, our company has successfully developed a method for absorbing and recycling exhaust gas.
The exhaust gas first enters the falling film recoverer through the exhaust pipe to cool the falling film to absorb the produced acid. The dilute acid liquid recovered by the falling film recoverer enters the liquid storage tank through the drain pipe to recover. The dilute acid liquid recovered by the primary absorption tower enters the liquid storage tank of the tower, and the tail gas that has not been absorbed enters the secondary absorption tower. The dilute acid liquid recovered by the secondary absorption tower enters the liquid storage tank of the tower and is not absorbed. A small amount of exhaust gas enters the vacuum pump, and the liquid recovered by the vacuum pump enters the body liquid storage tank, and the exhaust gas after reaching the standard after being absorbed by the vacuum pump is discharged through the exhaust pipe. In the acid preparation process, the generated low-concentration dilute acid solution participates in the acid circulation reaction, and the dilute acid solution made in the subsequent process is used to supplement the reduced circulation liquid in the previous process. After the concentration reaches the process requirements, Centralized storage. This process completes the process of acid tail gas recovery. This series of equipment can adopt automatic control to realize unmanned management mode.
Process of 100,000 tons sulfuric acid tail gas absorption section (Polywave fiber demister) Hubei Jinshandian Iron Mine Sulfuric Acid Plant