The equipment at the single tower and the twin towers thereof. Circular tower, connection is made with a flange segments. Specifically from the storage tank, tower, into the wind section, spray layer, filler layer, cyclone demister layer, view inspection windows, vents and other components. Mist spray tower works cut acid gas from the inlet to the bottom of the tower rim into the purification column, under the dynamic action fan, quickly filled the intake section of space, and then evenly through flows the section to rise to the first stage packing absorption section. On the surface of the filler, the gas phase and the liquid phase of the acidic substance react alkaline substance. The reaction product oil (mostly soluble salts) with the absorption liquid flowing into the lower part of the reservoir. Not fully absorb acidic gases continue to rise into the first-stage spray section. Absorb liquid from the spray section uniform high-speed spray nozzle, the formation of numerous small droplets mixed with the gas, the contact continued chemical reaction. Then the acid gas rose to the second stage in the packed section, spray segment and the first stage is similar to the absorption process. The second stage to the first stage nozzle of different densities, different liquid discharge pressure, absorbed acid gas concentration ranges are different. The process of spraying section and packing section is in contact with both the heat and mass transfer material process. By controlling the superficial velocity and lag time to ensure adequate storage and stability of this process. For certain chemically active poor acid gas, still need a certain amount of surfactant in the absorbent liquid. The uppermost tower segment is defogging, entrained in the gas absorbing liquid droplet is cleared down here, after post-treatment clean air from the upper end of the column purification of the exhaust pipe into the atmosphere. Equipment Principle: For corrosive gases (such as acids, alkaline gas) governance, the current use of liquid absorption method of governance. Governance of the exhaust gas by liquid absorption, the key is to select purification equipment. At present, the company developed a clean and efficient operation and management simple, long life acid and alkaline exhaust gas purification technology and equipment. The advantage of this technology and similar products at home and abroad purification tower, multi-stage rotary spray absorption, while the filler layer and the tower has been optimized on the technical parameters, simple structure, low energy consumption, high purification efficiency and scope After the wide range of features, mist exhaust duct introduced by the purification tower, after packing layer, gas and absorption liquid gas-liquid two-phase full contact absorption and reaction, mist exhaust gas after purification, and then by dehydration defogging defogging board into the atmosphere by the fan. After absorbing liquid booster pump and under overhead spray bottoms, finally returned to the bottom of recycling.