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What Are the Common Paint Mist Filtration Methods in Paint Booth?

What Are the Common Paint Mist Filtration Methods in Paint Booth?

Paint mist filtration and purification measures should be carried out to treat over-sprayed paint mist in the paint booth. The effect of purification directly determines whether it can meet the requirements of environmental-friendly emission, and the purification process occupies a large proportion in the operation cost of coating workshop. What are the purification methods of paint mist?

 

I. The classification of paint booth and the filtration methods of paint mist

According to the way of paint mist purification, common paint booth types contain dry paint booth and wet paint booth. Dry paint booth uses dry media or materials to intercept and purify paint mist; wet paint booth uses water as the medium, and the paint mist is purified through the impact and contact between the water curtain formed by the water medium or the atomized water and the air containing paint mist.

 

II. The technical innovation of the paint booth

With the continuous upgrading of environmental protection requirements, paint mist purification equipment should not only consider the purification effect but also take into account the subsequent waste treatment. Because the cost to treat the wastewater and waste residue produced in the operation process of wet paint booth or wet paint mist purification equipment is high and the harm to the environment is serious, many areas have taken the lead in requiring the new construction of dry paint booth and the use of waterborne paint as far as possible. The solid waste or solid hazardous chemicals produced after the paint mist purification of dry paint booth can easily be treated by incineration, landfill, and recycling, which has become the focus of the industry, and major engineering companies have invested in R&D and practice. Environmentally friendly dry filter materials with easy treatment continue to develop and innovate, among which the highly environmental-friendly carton filter with a large amount of paint mist collection has the best cost performance. In order to ensure efficiency, it is the inevitable direction of industry development to continuously upgrade carton filters to the second generation product.

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