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What is the role of the spray tower for waste gas treatment?

Views: 5     Author: Xicheng EP LTD     Publish Time: 2022-06-25      Origin: Xicheng EP LTD

The spray tower is a device used to pre-treat waste gas, which can indirectly improve the efficiency of waste gas treatment. Because the waste gas is washed with water inside the spray tower, it can reduce the dust and water-soluble chemicals in the waste gas, which can reduce the burden of vocs waste gas treatment equipment. , to improve the efficiency of exhaust gas purification.

Generally, in the process of waste gas treatment, there are steps such as collecting gas - pre-washing waste gas - transporting waste gas - purifying waste gas - exhaust gas, and the spray tower can be said to play the role of pre-washing and inspection in the VOCs waste gas treatment process. Such as biological deodorization, exhaust gas deodorization and other projects have an important role. In the treatment of paint, water-soluble waste gas, dust particles, etc., due to different chemical compositions, it has an impact on the treatment efficiency and energy consumption of vocs waste gas treatment equipment. The spray tower is used as a pretreatment device to eliminate these unstable factors and improve the smooth operation and purification efficiency of the vocs waste gas treatment equipment. In some special cases, when the temperature of the exhaust gas collection inlet is high, the inorganic acid gas generated needs to be cooled to enter the subsequent process during the treatment of the catalytic combustion equipment, and the spray tower can be used as a cooling facility and can be widely used in different exhaust gas treatment. in the project.

wet scrubber for flue gas

When dealing with odors and odors, those irritating gases will produce toxic components, which have a great impact on human health; but some are soluble in water, such as ammonia, sulfide and other gases, these odors After the washing of the spray tower, the treatment efficiency of microorganisms in the biological deodorization equipment will be increased, and the load will be reduced; at the same time, the humid internal environment of the spray tower will discharge the odor into the biological purification equipment, which can improve the living environment of microorganisms. Greatly improve the efficiency of microbial deodorization. Therefore, the spray tower is also suitable for biological deodorization, and is widely used in waste gas treatment projects such as biological deodorization, biological trickling filtration, biological filter and UV photolysis.

spray tower structure

The structure of the spray tower is a reverse packing absorption tower; due to the light volume of the gas, the gas enters the spray tower from the bottom of the tower body, and then evenly rises to the packing area, and then undergoes water pre-washing to reduce the soluble in the waste gas. For water and dust, the gas is mixed with water mist to form a filter layer on the surface of the tiny droplets to simply treat the VOCs waste gas. Among them, in the structure of the spray tower, the gas velocity and residence time of the empty tower section are the key factors of the spray tower in the VOCs waste gas treatment. The external structure of the spray tower is made of PP and stainless steel, and the bottom is also equipped with a water tank for water supply. The size of the water tank is determined according to the spray amount and the number of cycles; there is a packing layer in the middle, and the number of filling layers is selected according to the specific situation; the upper layer is provided with a defogging layer , used to separate the droplets carried by the exhaust gas, and the pretreated gas enters the exhaust gas treatment equipment for exhaust gas purification.

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