Spray tower

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Waste Gas Treatment Equipment

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Spray tower is a treatment equipment for environmental waste gas treatment, which is divided into circulating water spray tower, alkali spray tower, and acid spray tower according to its working principle. According to the material of the tower body, it is divided into fiberglass spray towers, pp spray towers, and stainless steel spray towers. Choose a reasonable spray tower material and spray process based on the different properties of the exhaust gas.

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Spray tower

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(1) Equipment Introduction
Spray tower is a treatment equipment for environmental waste gas treatment, which is divided into circulating water spray tower, alkali spray tower, and acid spray tower according to its working principle. According to the material of the tower body, it is divided into fiberglass spray towers, pp spray towers, and stainless steel spray towers. Choose a reasonable spray tower material and spray process based on the different properties of the exhaust gas.
When the exhaust gas passes through the spray tower, a suitable position (depending on the design) inside the tower sprays out liquid medium, some of which are alkaline solution and some are sulfuric acid solution. If the exhaust gas contains acidity, choose alkaline solution spraying to neutralize acidity. If the exhaust gas contains alkalinity, choose sulfuric acid solution for absorption. No acid or alkali, but oily or dusty waste gas can be treated by spraying a circulating water solution. When the exhaust gas enters from the bottom of the tower, it comes into contact with the spray medium sprayed out by the spray tower. After contact, the exhaust gas or oil stains are wrapped in water droplets, and the water droplets that wrap the pollutants collide again, increasing the surface area and gravity. Under the influence of gravity, water droplets containing pollutants fall into the bottom of the spray tower when gravity increases. Heavier pollutants settle at the bottom of the tower, while lighter pollutants float on the surface of the circulating water body.

Spray tower

(2) Design considerations
① When the exhaust gas contains oil and dust, it is necessary to consider whether to add filter fillers or nozzle models when designing the spray tower. Choosing an inappropriate nozzle can easily cause blockage in the water system of the spray tower;
② Select appropriate spray media;
③ Design reasonable airflow channels and water supply methods;
④ Sewage discharge and cleaning issues after spraying in the spray tower;
⑤ Appropriate gas-liquid ratio, selecting the appropriate water pump through gas-liquid ratio;
⑥ The flow rate of the empty tower is generally designed to be 1-6 meters per second. However, in the case of medium spraying and filling, the filtering wind speed can be reasonably selected based on the specific situation of the exhaust gas.

(3) Technical parameters

NO.	Specification (mm)	Air volume (m³/h)	Wind pressure (pa)
1	Φ800*H2500	900~2700	250~300
2	Φ1000*H2800	1413~3323	300~350
3	Φ1200*H2800	2034~6102	300~350
4	Φ1500*H2800	3186~9550	350~400
5	Φ2000*H2800	5652~16956	300~350
6	Φ2500*H2800	8820~26460	400~450
7	Φ3000*H4500	12780~38340	450~500