Waste gas purifying spray system

Abstract

A waste gas purifying spray system includes a waste gas inlet, a cyclone separator and a waste gas outlet. A spray column includes three layers, wherein a filter screen is fixed onto each layer through an angle iron bracket. A plurality of ceramic hollow tubes are irregularly arranged on each filter screen. A plurality of water spray tubes are arranged uniformly from the bottom to the top on inner periphery of the spray column. A plurality of spray nozzles are arranged on the inner side of each spray tube. A first-stage sedimentation tank, a second-stage sedimentation tank, a third-stage sedimentation tank and a fourth-stage sedimentation tank are successively connected to the waste gas outlet through pipelines. The waste gas purifying spray system is simple in structure, is stable in operation and is strong in heat dissipation and insulation. Waste gas can fully make contact with water fog so that the dust removal efficiency can be increased. Meanwhile, the waste gas purifying spray system can remove toxic gases, can achieve toxic-free emission, can form water circulation and can save water resource, so that by means of popularization and application of the system timely, an excellent social and economical benefit can be achieved.

Description

technical field [0001] The invention relates to the technical field of exhaust gas treatment, in particular to an exhaust gas purification spray system. Background technique [0002] Since the current furnace mainly burns 1 heavy oil, 1 coal furnace and 2 natural gas, zinc chloride needs to be added during the smelting process. The dust in the flue gas mainly contains: sio2, Zncl2, Al2o3 heavy oil, and the exhaust gas mainly contains CO2, CO, HCL, etc. The dust removal system is divided into two types: dry dust removal and wet dust removal. Since zinc chloride has strong hygroscopicity, if dry dust removal (bag filter) is used, the bag is prone to sticking, resulting in resistance to the dust removal system. The increase will even lead to the paralysis of the entire dust removal system. And the HCL gas in the exhaust gas is very corrosive, which has a strong corrosive effect on the internal structure, which will greatly reduce the life of the spray tower. Wet dust r...

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Problems solved by technology

[0003] At present, the spray towers on the market are only equipped with swirl plates on the inner wall to purify the exhaust gas with the spray head. Although CO2, CO, HCL and other gases in the exhaust gas can be removed, there are still some harmful gases that are difficult to purify, resulting in exhaust gas pollution. unsatisfactory treatment

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