What Is a Gas Scrubber?

The washing tower is a new type of gas purification treatment equipment. It is based on the improvement of the floating filler layer gas purifier. It is widely used in the pretreatment of industrial waste gas purification and dust removal, and the purification effect is very good. For the coal gasification process, coal gas washing is inevitable, no matter what coal gasification technology uses this unit operation. Because it works like a washing process, it is called a washing tower.

Washing tower

The washing tower is a new type

The washing column is similar to the rectification column and consists of a column body, a tray, a reboiler, and a condenser. Because the washing column is a device for performing coarse separation, the number of trays is generally small, and usually does not exceed ten stages. The washing tower is suitable for the separation of mixed gas containing a small amount of dust. The components will not react, and the product should be easy to liquefy. Impurities such as dust (also called high boiling materials) are not easy to liquefy or solidify. When the mixed gas enters the washing tower from the middle of the washing tower, the product component liquid is present between the trays, and the product component gas is liquefied while evaporating part, while the impurities cannot be liquefied or solidified. It will be fixed by the product component liquid to produce a washing effect. The washing tower is designed and manufactured according to this principle.

Washing tower

Gas double riser washing tower diameter 800

The riser has a trapezoidal wooden grid with 8 fog nozzles, which can prolong the mixing time of water and gas, which is good for decoking, dust removal and temperature reduction.

There are two gas pressurizers, one for each and one for standby. The power is 4KW.

The gas double vertical pipe washing tower is about 5 meters high.

Gas inlet temperature of double-pipe gas washing tower is 400 550

The gas outlet temperature of the gas double vertical pipe washing tower is 60 100

Gas processing capacity 1600M3 / h

The acid mist washing tower uses the contact between the gas and the liquid to transfer the pollutants in the gas to the liquid, and then separates the clean gas from the contaminated liquid to achieve the purpose of cleaning the air. The exhaust gas passes through the filled acid mist washing tower and is treated by gas-liquid reverse absorption, that is, the liquid is sprayed down from the top of the tower in a mist (or small droplet). Exhaust gas from the tower (reverse flow) to achieve the purpose of gas-liquid contact. This treatment can cool the exhaust gas, condition the gas, and remove the particles. After the treatment in the demister section, it is discharged into the atmosphere.

Washing tower structure

Standard device: Optional device:

1. Washing tower spray system 1. PH control device

2. Filling layer filling material 2. ORP control device

3.Moisture remover 3.Medicine storage tank

4, inspection window, maintenance access hole 4, drug level control device

5. Overflow, discharge and automatic supplementary water outlets 5. Circulating water tank water level control device

6.Circulating water pump

7.Circulating water filter

8, pressure gauge

Working principle of washing tower

The fan unit of the acid mist washing tower system sucks the collected exhaust gas into the acid mist washing tower and flows through the filling layer (gas / liquid contact reaction medium), so that the chemical liquid (washing liquid) flowing on the surface of the exhaust gas and the filling is sufficient Contact to adsorb acidic or alkaline dirt contained in the exhaust gas. After washing, the waste liquid is collected in the water collection tank and then discharged to the waste water system for treatment.