Spray tower, also known as scrubbling tower, vertical scrubber, scrubber vessel and water washing tower, is a kind of equipment for waste gas treatment and a gas-liquid generating device. It is suitable for the collection and purification of water-soluble gases such as alkali steam and acidic gases in the pickling process of various materials, such as acid mist (H2S04), hydrogen chloride (HCL) gas, hydrogen fluoride (HF) gas, chromium Acid mist (CrO3), hydrocyanic acid (HCN) gas, hydrogen sulfide (H2S), ammonia (NH3) and alkali vapor and other water-soluble gases. Using sodium hydroxide as the absorption neutralizing liquid, the solution concentration is 2-6%, the purification efficiency is above 95%, and the purification efficiency can reach 98%. Spray towers have many application areas, so there are also spray towers made of different materials. According to the material of the tower body, it is divided into fiberglass spray tower, PP spray tower and stainless steel spray tower.
The acid gas enters the purification tower tangentially from the air inlet at the bottom of the tower body. Under the power of the ventilator, it quickly fills the air inlet section space and then evenly rises through the flow equalization section to the first layer of packing absorption section. The acidic gas that has not been fully absorbed continues to rise into a layer of spray section. In the spray section, the absorbing liquid is sprayed out from uniformly distributed nozzles at high speed, forming countless small droplets that fully mix and contact with the gas, and continue to undergo chemical reactions. Then the acidic gas rises to the packing section and spray section of the second layer to undergo an absorption process similar to that of the first layer. The upper part of the tower is the mist removal section, where the absorbed liquid mist droplets entrained in the gas are removed, and the treated clean air is released into the atmosphere from the exhaust pipe at the upper end of the purification tower. The wastewater sediment in the circulation tank is regularly cleared and transported outside.
This high-efficiency FRP-spray tower is a cylindrical tower. The spray absorption system is mainly composed of filler, spray device, mist removal device, circulation pump, and absorption tower. The specific structure consists of air inlet section, pressure chamber, spray section, swirl plate, chimney cone cap, air duct, air duct, liquid flow meter, liquid level meter, pressure detection port, pH detector, etc.
