Equipment introduction:

       Redox packing tower is widely used in high-concentration tail gas treatment, widely used in PCB, CCL, TFT-LCD and other electronics industries, metal pickling and electroplating industry, rubber deodorization, garbage deodorization, chemical and pharmaceutical industries deal with.
       Adopting redox packing tower processing, mature technology, stable operation and good processing effect. The method can carry out multi-stage continuous processing on a variety of gas components, and it has wide adaptability. This process is suitable for treating large-volume, high-concentration acid-base gases. It is characterized by maximizing gas-liquid contact, increasing gas-liquid mass transfer rate, and achieving efficient treatment. In the chemical washing and absorbing process, the concentration and dosage of the medicament can be changed according to the change of the gas concentration and composition, thereby reducing the running cost and increasing the treatment rate.

Equipment structure:

The redox packed tower contains the following components:

1、The tower body part of the packed tower contains: a water storage tank, a filling layer, a dewatering layer, a window and a base.

2、The circulating water part contains: circulating water pump, sprinkler pipe, spiral anti-blocking nozzle, water level control valve and switch;

3、Dosing system contains: PH online detector, medicinal solution metering pump, medicine tank storage tank, agitator, liquid level sensor, etc .;

working principle:

       After the exhaust gas is collected by the gas collection hood and pipes, it is introduced into the redox packing tower processing equipment by a centrifugal fan, and then the gas is sent to the chimney system by the centrifugal fan, and then the treated clean air is discharged at high altitude.

       The conditions for treating the exhaust gas in the redox packing tower are that under a certain temperature and pressure, a high-pressure nozzle is installed in the equipment's circulating spray system, and the filling material is an efficient filling material, so that the sprayed liquid can reach the atomized state. When the gas-liquid phase comes into contact, the dissolution or absorption of the components is the main factor. As time goes on and the concentration of the absorbent in the solution increases, the absorption rate will continue to slow down, while the desorption rate will continue to increase. At a certain moment, the absorption and desorption speeds are equal, and the transfer between gas and liquid phases reaches equilibrium-phase equilibrium. When the phase equilibrium is reached, the dissolution process is stopped. Therefore, the clean washing solution needs to be replaced at this time, otherwise the components that have been absorbed in the solution may escape from the liquid phase back to the gas phase and form desorption.

Features of packed tower:

1、Large production capacity --- and increase in throughput per unit cross-sectional area

2、High processing efficiency ------- high hydrophilic gas absorption efficiencyHigh processing efficiency ------- high hydrophilic gas absorption efficiency

3、Simple structure ------- Backwashing type and cross type, backwashing type is most suitable for small space installation; cross structure is most suitable for high altitude restricted installation

4、Stable operation and great flexibility ------- The system has a simple structure, and there are maintenance openings, and the material is generally made of anticorrosion

5、Low resistance ------- that is, the pressure drop of gas passing through the packing layer per unit height is small;