PPH packing absorption tower for chemical industry

PPH packing absorption tower for chemical industryThe working principle is to separate pollutants from the gas and convert them into harmless substances to achieve the purpose of purifying the gas. It belongs to the differential contact countercurrent type, and the packing inside the tower is the basic component for gas-liquid two-phase contact. After the gas outside the tower enters the tower, it enters the packing layer. There is a spray liquid from the top and the spray liquid in front on the packing layer, forming a liquid film on the packing. When the gas flows through the gaps of the packing, it contacts the liquid film and undergoes absorption or neutralization reaction. The packing layer can provide a sufficiently large surface area without causing excessive resistance to the gas flow. The absorbed or neutralized gas is discharged from the tower through the outlet. Absorbent is the main medium for treating exhaust gas, and its properties and concentration are selected according to the properties of different exhaust gases. The consumption per unit gas treated is determined by calculating the ratio of the molar flow rate of absorbent to inert gas. The exhaust gas is sucked in by the fan through the air duct and passes through the packing layer from bottom to top; The circulating absorbent is evenly sprayed into the packing layer through a liquid distributor at the top of the tower, flowing downwards along the surface of the packing layer and entering the circulating water tank. Due to the continuous contact between the ascending airflow and the descending absorbent in the packing, the concentration of the fluid in the ascending airflow decreases and reaches the emission requirements at the top of the tower. The liquid on the liquid film flows into the storage tank under the action of gravity and is pumped out for circulation by the circulation pump.

PPH packing absorption tower for chemical industryPrecautions for use

Sealing inspection: Regularly inspect the tower body, pipeline connections, and valves to prevent environmental pollution or personnel injury caused by exhaust gas leakage.

Fire and explosion prevention: When dealing with flammable and explosive exhaust gases, it is necessary to install combustible gas alarms, explosion-proof membranes, and use explosion-proof motors and electrical equipment.

Chemical protection: When preparing or replacing absorbent solutions, operators should wear protective gloves and goggles to avoid direct skin contact.

Regular maintenance: Daily inspection of equipment operation status, comprehensive inspection of packing condition every year, cleaning of dirt inside the tower every 3-6 months to ensure mass transfer efficiency.

Operating standards: Strictly follow the operating procedures, prohibit unauthorized changes to parameters or illegal operations, and avoid affecting the processing effect.

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