JingzhongJing(JZJ) Group company was set up in 1999,now is a large comprehensive company which specialies in the design,manufacture,sales,service for Painting equipments.
Main Product: Spray booth/Preparation room/Water testing line for Car/Bus/Truck/
Train/Boat/aircraft ect; Sanding/Power Coating/Painting line for all kind of Industry Product,Voc Environment equipments.
Our Brand: Baozhongbao(BZB)
Process Description
Baozhongbao series activated carbon adsorption-catalytic combustion integrated waste gas treatment device uses the thermal energy of catalytic combustion reaction to desorb VOCs adsorbed by activated carbon, completely solving the problem of wastewater pollution caused by steam desorption. This process is currently recognized as a mature process for treating large air volume, low and medium concentration organic waste gas.
Process device
This device is mainly composed of exhaust pipe, dry filter, activated carbon adsorption box, electric regulating valve, catalytic purification device, flame arrester, mixed flow heat exchange device, exhaust fan, electrical control and other parts.
1.Working principle
First, the organic waste gas is removed through a dry filter to remove some dust particles, and then the organic waste gas enters an adsorption box for adsorption, and the cleaned gas after adsorption and purification is discharged into the atmosphere by a main exhaust fan. When the activated carbon is saturated and adsorbed, it is switched to the desorption-catalytic combustion state through the control valve; the desorption regeneration system adopts the offline desorption regeneration form, and the deactivated activated carbon tank is prepared for the next cycle.
2.Technical characteristics
1) The entire system equipment has realized purification and desorption process automation, no secondary pollution occurs during operation, and equipment investment and operating costs are low;
2) The filter is used to filter small particles in front of the activated carbon adsorption bed, which has high purification efficiency and ensures the service life of the adsorption device.
3) Using specially shaped honeycomb activated carbon as the adsorption material, because its specific gravity is 8-10 times that of strip-shaped activated carbon fibers, the adsorption of VOC before regeneration can reach 25% of the total weight of the activated carbon, with long service life and low operating resistance , High purification efficiency;
4) The equipment has a small footprint and light weight, and the filter material of the adsorption bed adopts a stacked structure, which is easy to load and easy to replace;
5) The high-quality precious metal palladium and platinum are supported on the honeycomb ceramic as a catalyst, which has the advantages of small resistance, high activity, long service life, low decomposition temperature, short desorption preheating time, low energy consumption, and good stability.
6) Make full use of waste heat and save energy. The desorption and desorption of activated carbon in the device all use hot air as the desorption medium, and no additional energy is needed, and the running cost is greatly reduced.
7) The PLC control system is adopted to automate the equipment operation and operation process, and the operation process is safe, stable and reliable.
Introduction of catalytic combustion device
Catalytic combustion is a typical gas-solid phase catalytic reaction, and its essence is the deep oxidation involving active oxygen. During the catalytic combustion process, the catalyst surface has an adsorption effect, so that the concentration of reactant molecules on the surface increases the reaction rate and accelerates the reaction. Flameless combustion occurs with the aid of a catalyst, which is oxidatively decomposed into CO2 and H2O, and simultaneously releases a large amount of thermal energy, thereby achieving the purpose of purification.
The catalytic combustion device is provided with a temperature probe and a supplementary cooling valve. When the reaction temperature of the catalytic combustion chamber exceeds a set upper limit, the supplementary cooling valve is opened to supplement the fresh air, and the intake air source is diluted and cooled to protect the equipment to extend its service life and prevent accidents.
The main structure of the device is composed of the main unit of the purification device, the induced draft fan and the electrical control elements. The main unit of the purification device is an integrated structure composed of a heat exchanger, a preheating chamber, a catalytic bed, a flame arrester and an explosion-proof device. The entire periphery of the furnace body is thermally insulated with a thickness of 100 mm. The surface temperature of the furnace body is ≤ ambient temperature +30 ºC
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