Introduction
Polymer coated to paste, molten polymers or polymer molten coating on paper, cloth, plastic film was prepared composites (film) method. Coating technology widely used in paper coating and film base material and composite packaging.
Industry characteristics
Coating process will have different degree of pollution of the environment, mainly for air pollution, gas is the main pollutant "organic volatile", English abbreviation for VOC (mainly including isopropyl alcohol, benzene, toluene, xylene, ethyl acetate, alcohol, acrylic acid, heavy metal silver ions, acetone, etc.), is that some can react with sunlight nitric oxide in the ozone layer of organic compounds, and VOC in evaporate into the air, dust and tiny dust particles and other material can form fog, stimulate the lungs, health of animals and plants and other creatures have a negative impact.
Industry production link
Coating of organic waste gas causes：
First is the coating agent volatile produce waste gas, coating agent has the branch of solvent and water type, solvent in the coating should be used when processing ethyl acetate, dimethyl amine methane (DMF), butyl ketone (MEK), toluene (TOL), isopropyl alcohol (IPA), and other organic solvent as medium. Although these solvent-based coating finishing agent process performance is better, but the dosage of the organic solvent, is not only dangerous substances, many of which are volatile organic compounds.
Due to the coating agent contains a lot of organic solvents, and contains 60%, organic waste gas spillover mainly in the coating and drying process
Due to the coating agent contains a lot of organic solvents, and contains 60%, organic waste gas spillover mainly in the coating and drying process
Process description
Generally consider using regenerative oxidation, wheel enrichment + RTO/RCO \ such as activated carbon adsorption process to prevent the pollution emissions.
According to the industry for many years deep excavation and the successful experience of exhaust gas treatment, to provide you with the most cost-effective best solution
Recommended use: + adsorption recycling regenerative oxidation + waste heat recycling treatment technology
1, adsorption recycling
Adsorption recycling equipment, relies on a strong research team and universities scientific research institutes of technical support, has the independent research and development of adsorption material, and in the industry with rich experience in project design and implementation.
(1) adsorption recycling technology is the application of activated carbon fiber adsorption material adsorption stripping performance to recycling waste gas pollutants in the method, can be used to deal with low concentration of 1000-100000 - m after/h air volume of organic waste gases.
(2) granular activated carbon adsorption recycling technology is the application of adsorption material adsorption stripping performance to recycling waste gas pollutants in the method, commonly used in treatment of high concentration organic waste gases.
2、 Regenerative oxidation
(1) type regenerative oxidation bed
The exhaust gas heated to 760 ℃ in direct combustion, catalytic combustion or heated to 300 ℃, the VOCs in the exhaust oxidation is decomposed into CO2 and H2O, oxide produced by high temperature gas flows through the ceramic regenerator, and make up the "heat", and used to preheat the follow-up into organic waste gas, which can save up to processing technology of waste gas heating fuel consumption.
The exhaust gas heated to 760 ℃ in direct combustion, catalytic combustion or heated to 300 ℃, the VOCs in the exhaust oxidation is decomposed into CO2 and H2O, oxide produced by high temperature gas flows through the ceramic regenerator, and make up the "heat", and used to preheat the follow-up into organic waste gas, which can save up to processing technology of waste gas heating fuel consumption.
(2) rotary regenerative oxidation
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Product features
Ø special adsorption material, the higher adsorption capacity
Ø + negative pressure steam stripping, reduce energy consumption
Ø reasonable control condensation temperature, saving energy consumption of wastewater treatment
