Dimensions and structure of commonly used activated carbon adsorption and desorption devices in spray booths
Published Time:
2020-04-03
Let's look at the size and structure of commonly used activated carbon adsorption desorption devices in spray booths. For cylindrical adsorption devices, the diameter is 1 to 2 m. For vertical adsorption devices, the height and diameter are approximately equal, and the activated carbon layer height is 1.5 to 1.8 m. For horizontal adsorption devices, the activated carbon layer height is 0.3-0.8m, which can be single-layer or multi-layer, and the gas flow rate is 0.3-0.6m/s; if the layer height is increased, the adsorption capacity and power cost will increase accordingly.
Let's examine the dimensions and structure of commonly used activated carbon adsorption-desorption devices in spray booths. For cylindrical adsorption devices, the diameter is 1 to 2 m. For vertical adsorption devices, the height and diameter are approximately equal, and the activated carbon layer height is 1.5 to 1.8 m. For horizontal adsorption devices, the activated carbon layer height is 0.3-0.8m, which can be single-layer or multi-layer, with a gas flow rate of 0.3-0.6m/s; if the layer height is increased, the adsorption capacity and power cost will increase accordingly.
As the activated carbon in the activated carbon adsorption-desorption device adsorbs, the equipment resistance gradually increases. When the activated carbon adsorption is saturated, the equipment resistance reaches its maximum value, and after that, the purification efficiency of the equipment is basically lost. To this end, the system sets up a pressure difference measurement system at the air inlet and outlet of the equipment to detect and display the exhaust gas pressure difference at the inlet and outlet of the equipment, and to replace the activated carbon in a timely manner.
Because activated carbon has the characteristic of being regenerable, in cases where the amount of activated carbon is large, the exhaust gas concentration is high, and the activated carbon adsorption saturation time is short, the activated carbon adsorption-desorption device can be used for recycling. Using an activated carbon adsorption-desorption device not only saves operating costs but also recovers the adsorbed exhaust gas, while avoiding secondary pollution. Without solvent recovery, photocatalytic oxidation activated carbon adsorption-desorption devices can also be used to regenerate and recycle activated carbon. The nanometer photocatalytic catalyst material (GC-100) in the core of the automobile spray booth exhaust treatment device is a substance that can produce a catalytic reaction on its surface after absorbing light energy, and its function is similar to that of chlorophyll in plants. When ultraviolet light with a specific nanometer wavelength is irradiated to the photocatalytic catalyst material (GC-100), a photocatalytic oxidation-reduction reaction occurs on its surface. Finally, carbon dioxide and water are formed.
Keywords:
Activated carbon adsorption desorption device
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