Working principle and characteristics of exhaust gas treatment equipment
The working principle of the exhaust gas treatment equipment is to separate the pollutants in the gas and convert them into harmless substances to achieve the purpose of purifying the gas. It belongs to the differential contact counterflow type, and the packing in the tower body is the basic component of gas-liquid two-phase contact. It can provide a large enough surface area without causing excessive resistance to gas flow. The absorbent is the main medium for the treatment of exhaust gas. Its properties and concentrations are selected according to the properties of different exhaust gases. The consumption of the unit gas is determined by calculating the ratio of the molar flow rate of the absorbent to the inert gas. The exhaust gas is sucked in by the air duct and passes through the packing layer from bottom to top; the circulating absorbent sprays from the top of the tower through the liquid distributor evenly into the packing layer, flows downward along the surface of the packing layer, and enters the circulating water tank. Due to the continuous contact of the updraft and downdraft absorbent in the packing, the concentration of the fluid in the updraft is getting lower and lower, and the discharge requirements are reached when the tower top is reached.
I. Exhaust gas treatment and combustion method: The method of heating high temperature is used to directly burn and treat organic exhaust gas to achieve the purpose of exhaust gas purification.
Advantages: high purification efficiency, up to 95%.
2. Exhaust gas treatment and absorption method: The absorption fluid and the exhaust gas are brought into contact with each other, so that harmful substances in the exhaust gas are dissolved in the absorption fluid, so that the exhaust gas can be purified. The absorption solution is handled separately.
Third, the exhaust gas treatment activated carbon adsorption device adsorption method: the use of porous activated carbon, silicon bath soil, anthracite and other molecular-level large surface residual energy, organic gas molecules are adsorbed on its surface, and thus purified.