The concentrated rotary catalytic combustion integrated machine adopts a honeycomb zeolite adsorption concentration desorption+catalytic combustion process.
VOCs exhaust gas is filtered through a filter to remove paint mist, paint residue, etc. from the exhaust gas, in order to improve the service life of the wheel and reduce maintenance costs in the later stage. The zeolite molecular sieve adsorption and concentration wheel has a sealing system consisting of two parts: processing and production. The wheel rotates slowly to ensure a complete and continuous adsorption process. When the exhaust gas passes through the treatment zone, the components of the exhaust gas are adsorbed by the adsorbent in the impeller, and the exhaust gas is purified and discharged. The impeller gradually approaches adsorption saturation. At the same time, in the production area, high-temperature air passes through the adsorption saturated impeller, and the adsorbed exhaust gas is desorbed and carried away by the high-temperature air, thereby restoring the adsorption capacity of the impeller. The desorbed high-temperature gas enters the RCO oxidation device for oxidation treatment.
When the rotating adsorption wheel is in operation, the adsorption and desorption processes are continuously carried out, and the concentration fluctuation of the desorbed concentrated waste gas is small, avoiding the concentration fluctuation formed by the fixed adsorption bed during desorption, which is conducive to controlling the stability and normal operation of the entire system, and can protect the stability of the output heat of the subsequent processing unit.
This process adopts zeolite molecular sieve adsorption purification, combined with hot air desorption production. The concentrated VOC is treated by catalytic combustion to meet the requirements of standard emissions.
Honeycomb zeolite adsorption concentration desorption+catalytic combustion process flow:
Under normal working conditions, the exhaust gas is discharged in compliance with standards after being adsorbed by the impeller under the action of the induced draft fan. (Purification process)
After determining the adsorption time, the molecular sieve is subjected to hot air desorption production to restore its adsorption performance. (Production process)
The detached VOC molecules are thoroughly decomposed through catalytic combustion before being emitted. (Combustion process)