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    Waste gas treatment equipment for cyclone plate columnTreatment of acid fog waste gas from Chuan Meng environmental protection company

    来源:admin(传梦环保整理发布)   时间:2018-08-07

    Treatment of acid fog waste gas from Chuan Meng environmental protection company
    Acid mist purification tower is suitable for the pickling process of various materials. The acid mist (H2S04), hydrogen chloride (HCL) gas and hydrogen fluoride (HF) gas, chromium acid fog (CrO3), HCN gas, hydrogen sulfide (H2S), ammonia (NH3), alkali steam and other water-soluble gases produced during the process of pickling, the purification rate is over 95%, and the acid gas purification equipment It is a two phase reverse flow packing absorber. The acid mist purification tower is treated with first stage bubble, first class (or two grade) spray treatment, the shell is made of polypropylene, and the main engine is equipped with pressure bubbling tube, silk net foam device and sieve hole disc spray device, and the packing layer is equipped with full gas and liquid contact. The acid fog waste gas after purification is greatly lower than the national emission standard, and the equipment is operated. It is convenient, convenient for installation and maintenance, high strength, long service life and small floor area. It is the most ideal acid and alkali cleaning equipment with high concentration and higher temperature. The purified gases discharged by Dongguan environmental protection company conform to the "comprehensive discharge standard of air pollutants".
    First, the working principle of the acid mist spray tower


    The acid gas enters the purification tower along the inlet of the air inlet under the tower body. Under the dynamic action of the fan, the intake section is rapidly filled with the intake section, and then the first stage filler absorption section is uniformly passed through the flow averaging section. On the surface of packing, the acidic substances in the gas phase react with the alkaline substances in the liquid phase. The reaction product oil (mostly soluble salts) flows into the lower storage tank with the absorption liquid. The acid gas that has not been absorbed continues to rise to the first stage. The absorption liquid in the spray section of Dongguan environmental protection company is spewed out at high speed from the uniform nozzle, forming numerous small droplets and gas to fully mix, contact and continue to react to chemical reactions. Then the acid gas rises to the second stage packing section and the spray section to carry out the absorption process similar to that of the first stage. The density of the second stage is different from that of the first stage nozzle, and the concentration range of absorbing acid gas is different from that of the first stage nozzle. The two phase contact process in spray section and packing section is also a process of heat and mass transfer. By controlling the flow rate and storage time of the empty tower, the process is ensured to be full and stable. For some acid gases with poor chemical activity, a certain amount of surfactants should be added to the absorbent. The upper part of the tower is the mist removal section. The absorption liquid droplets in the gas are cleared here. The cleaned air after treatment is put into the atmosphere from the exhaust pipe of the tower.
    Equipment principle: for the treatment of corrosive gases (such as acid and alkaline waste gas), liquid absorption is often adopted. The key to the treatment of the waste gas by liquid absorption is the choice of purification equipment. The technology and product integrated the advantages of the same kind of purification tower both at home and abroad, multistage rotary spray and absorption, and optimize the technical parameters of the packing layer and the tower body. The structure is simple, the energy consumption is low, the purification efficiency is high and the application range is wide. The acid fog waste gas is introduced into the purifying tower by the wind pipe, through the packing layer, waste gas and hydrogen. The absorption and neutralization reaction of the gas-liquid two phases is fully exposed by the absorption solution of sodium oxide. After purification of the acid fog waste gas, the air blower is discharged into the atmosphere by the dehydration of the mist removal plate and the mist removal. The absorption liquid is pressurized by the pump at the bottom of the tower and then sprayed down at the top of the tower. Finally, it is recycled to the bottom of the tower for recycling.
    Two. Characteristics of the equipment of acid mist spray tower
    The equipment adopts the packing tower to purify the exhaust gas. It is suitable for the treatment of continuous and intermittent exhaust gas. The process is simple, the management, operation and maintenance are quite convenient and concise. It will not have any effect on the production of the workshop; it has a wide range of application and can clean many kinds of pollutants at the same time; the pressure drop is low, the operation elasticity is big and it is very good. The fogging performance of the tower can be made with FRP/PP/PVC and other materials according to the actual conditions; the packing adopts the Bauer ring with high efficiency and low resistance, which can completely remove the odor and harmful substances in the gas.
    Three. Structure form of acid mist spray tower
    The equipment is divided into single tower and Twin Towers body. The environmental protection company in Dongguan adopts a circular tower body and is made up of flanges. It is composed of a liquid storage tank, a tower body, an intake section, a spray layer, a packing layer, a swirl mist eliminator layer, an observation window and an air outlet. The acid mist spray tower is a circular tower. It is made of polypropylene, polyvinyl chloride and other materials by flange connection. The concrete structure is composed of air intake section, pressure chamber, bubble tank, two stage spray section, swirling board, air outlet cone cap, wind pipe, air duct, liquid meter, liquid level meter, pressure detection port, acid reserve meter and so on. Acid mist purification tower has the advantages of high efficiency, strong corrosion resistance, high strength, low noise and power consumption, and easy to disassemble and maintain.

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    Zouping Shuaike Painting Purification Equipment Co., Ltd. is a subsidiary of Guangzhou Jiuhua Machinery Equipment Co., Ltd. It specializes in the design and manufacture of environmental protection painting equipment. Its main products are UV photocatalysis, spray tower, swirl tower, activated carbon environmental protection box, water curtain cabinet, central dust removal, paint baking room ass...

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