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What is the processing technology of paint exhaust gas treatment equipment?

Words:[Big][Medium][Small] Mobile Page Two-Dimensional Code 2019-06-10     

Paint exhaust gas treatment technology:


The paint sprayed exhaust gas is mainly composed of two parts, one is liquid paint mist and the other is gaseous VOC. For liquid paint mist, a paint removal device is required; however, for insoluble water VOC, the industrial mature technology should be activated carbon adsorption + photocatalytic oxidation desorption combined exhaust gas purification system.


1. Dry paint mist filtration and purification device At present, 80% of the spray booths in developed countries in Europe and America use dry paint mist purification. An important reason is the comprehensive consideration of environmental protection. In addition, dry paint mist purification also shows great advantages in ensuring paint performance, purification efficiency, reducing secondary pollution, and reducing operating costs.


2. Activated carbon waste gas purification treatment device The activated carbon waste gas purification device is a dry exhaust gas treatment device. It consists of a tank and an adsorption unit filled in the tank. According to the quantity of the adsorption unit and the air volume, different combinations of specifications can be carried out. The activated carbon exhaust gas purifier can select different fillers to treat a variety of different exhaust gases, and is mainly used for purifying organic waste gas such as paint. For concentrations below 1000 mg/m3

The emission after exhaust gas purification meets GB16297-1996 "Integrated Emission Standard for Air Pollutants". This equipment is an activated carbon adsorption unit and needs to be used together with an activated carbon regeneration system (using a nano-photocatalytic oxidation unit). Shandong Qianwei Environmental Protection Technology Co., Ltd. main advantages of activated carbon adsorption device: high adsorption efficiency, low operating cost, easy maintenance, and can handle a variety of mixed exhaust gases at the same time.


3. Photocatalytic oxidation purification device Because activated carbon has the characteristics of being able to regenerate, in the case of large amount of activated carbon, high concentration of exhaust gas and short adsorption time of activated carbon, activated carbon desorption device can be used to regenerate and recycle activated carbon (desorption medium can be used) Use steam). The use of activated carbon desorption device not only saves operating costs, but also recovers the adsorbed exhaust gas while avoiding

Secondary pollution. In the case of not recovering the solvent, the photocatalytic oxidation activated carbon regeneration device can also be used to regenerate the activated carbon. The nano photocatalytic catalyst material (GC-100) in the core of the device is a kind of surface energy that can absorb light energy. A substance that produces a catalytic reaction that functions like a plant's chlorophyll. When a specific nano-wavelength ultraviolet light is irradiated to a photocatalytic catalyst material (GC-100), a photocatalytic redox reaction occurs on the surface. The photocatalytic catalyst material (GC-100) absorbs photons and generates electrons (E) and holes (H+) on its surface, converting the absorbed light energy into chemical energy, that is, having photocatalysis.

4. RCO: Precious metal catalytic combustion after concentration with activated carbon.


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