How to deal with exhaust gases from injection moulding machines

Injection moulding machine production process, will produce a large number of vocs exhaust, especially in the melting, injection moulding, moulding and other steps, will produce a large number of volatile exhaust, exhaust treatment is mainly benzene, plastic particles, alkanes and other exhaust, injection moulding machine exhaust how to deal with it? The following with the Everest blue editorial to learn more about it~

Injection moulding machine exhaust gas treatment commonly used methods are: catalytic combustion, activated carbon adsorption, plasma purification method, photocatalytic oxidation and so on.

Catalytic combustion: more suitable to deal with higher concentrations, small air volume of VOCs organic waste gas, the overall process safety factor and sealing scale is high. For high air volume, lower concentration of organic waste gas to take pre-treatment to choose the adsorption concentration process.

Activated carbon filtration: the use of honeycomb activated carbon, column activated carbon, granular activated carbon, activated carbon fibre and other porous structure adsorption of VOC harmful gases, activated carbon filtration of this type of method is widely used at this stage of a class of adsorption process.

Low-temperature plasma equipment: when the resulting operating voltage to do the air discharge operating voltage, the air is broken down, resulting in a mixture of electrons, various ions, atoms and free radicals. Low-temperature plasma equipment degradation of pollutants is the use of high-energy electrons, free radicals, pollutants in organic waste gas and other active particles in a very short period of time to break down pollutant molecules, to achieve the purpose of degrading pollutants.

Photocatalytic oxidation: the lower concentration of injection moulding organic waste gas, choose the photocatalytic oxidation process, under the titanium dioxide catalyst, using high-energy ultraviolet light on the organic waste gas molecules to take the decomposition off. It causes water vapour and carbon dioxide, and the photocatalytic oxidation process is more suitable for the treatment of injection moulding organic waste gas of lower concentration.