Spray scrubber tower utilizes the contact between the gas the liquid, while the pollutants in the gas are transmitted to the liquid, then the clean gas is separated the polluted liquid to achieve the purpose of clearing the air. Exhaust gas is processed through the filled scrubber tower with gas-liquid reverse absorption, i.e., the liquid is sprayed down the top of the tower in the form of mist ( small liquid droplets). The exhaust gas is then sprayed the top of the tower downward in a mist ( small droplets), while the exhaust gas is flowed through the tower (in the reverse direction) to achieve gas-liquid contact. This treatment method can cool the exhaust gas, condition the gas remove the particles, then after the mist removal section, it is discharged into the atmosphere. Spray scrubber tower it is in the floating packing layer gas purifier on the basis of improvement produced, widely used in industrial waste gas purification, dust removal other aspects of pre-treatment, purification effect is very good. Spray scrubber tower utilizes the contact between the gas the liquid, the pollutants in the gas are transmitted to the liquid, then the clean gas is separated the polluted liquid. Spray scrubber tower is an ancient wet dust removal equipment, due to its simple structure, low resistance, in industrial production, especially as environmental protection equipment is widely used.

First. Structure type of spray washing tower

Wash liquid through the nozzle atomized into tiny droplets evenly sprayed downward, dusty gas the lower part of the spray tower into the bottom upward flow, the two countercurrent contact, the use of dust particles water droplets in contact with each other cohesion agglomeration of dust particles, so that its weight greatly increased by the effect of gravity settled down. Arrested dust, in the storage tank for gravity settlement, the formation of the bottom of the high solid concentration phase liquid regularly discharged for further processing. Part of the clarified liquid can be recycled, with a small amount of additional clear liquid together with the circulating pump the top of the tower nozzle into the spray tower for spray washing. This reduces the consumption of liquid the amount of secondary sewage treatment. The purified gas after spray washing is discharged the top of the tower after removing the tiny liquid droplets entrained in the gas through the defoamer.

The main reasons affecting the dust removal efficiency of the spray tower are the uniformity of droplet distribution, droplet particle size particle size distribution. Therefore, the selection of suitable atomizing nozzles nozzles reasonable arrangement is one of the keys to the design of spray washing tower: scrubber tower defoamer.

Nozzle arrangement: the arrangement of nozzles in the spray tower should make the spray tower cross-section is sprayed liquid completely evenly covered. Generally use multi-layer nozzle arrangement, two adjacent layers of nozzles are staggered arrangement. The distance between the two layers is 1-2 meters. The arrangement of each spray layer, the nozzles between the two adjacent layers of water spray overlap each other, leaving no gaps, so that the spray droplets completely cover the entire cross-section of the spray tower, to minimize the amount of liquid flowing along the tower wall, while reducing the spray liquid on the tower wall of the direct scouring abrasion.

Spray coverage: the liquid sprayed the nozzle must be able to completely cover the spray tower cross-section at a certain distance the nozzle outlet to prevent gas short-circuiting problems in the spray tower in the area there is no spray liquid. General requirements of each spray layer spray coverage to 200% -300% is appropriate.

Second, the spray washing tower exhaust gas treatment capacity

Spray scrubber tower treatment capacity: effective economical treatment of acidic alkaline waste gas, the removal rate can be as high as 99% more. Spray scrubber tower is an ancient wet dust removal equipment, due to its simple structure, low resistance, while reducing the spray liquid on the tower wall of the direct scouring wear. Spray coverage nozzle spraying the liquid must be able to, widely used in industrial waste gas purification, dust removal other aspects of pre-treatment, purification effect is very good. Spray scrubber tower utilizes the contact between the gas the liquid, the pollutants in the gas are transmitted to the liquid, then the clean gas is separated the polluted liquid.

Third, the scope of application of spray washing tower

1, a variety of harmful gases such as H2S, SOX, NOX, HCI, NHCI2 other malodorous gas treatment;

2, the deodorization device of sewage treatment plant;

3, semiconductor photoelectricity industry process exhaust treatment;

4, landfill leachate retention pond exhaust treatment;

5, incinerators industrial furnaces other emissions of exhaust treatment. Printed circuit board industry, electronic component industry plating, pre-treatment, chemical industry, steel industry, semiconductor manufacturing industry, dyeing industry.