How to purify the exhaust gas generated by the hot melt adhesive coating machine

The hot melt adhesive coater is a polymer which does not require solvent, water content, and 100% solid fusibility. It is solid at normal temperature, and is heated and melted to a certain extent to become flowable and sticky. A liquid binder, coated on a substrate, usually comprising a composite portion, a device that can be used to laminate another substrate with a glued substrate. In the high-temperature production process, the hot melt adhesive produces exhaust gas such as toluene, xylene, ketones, esters, halogenated alkane, and the like. If direct discharge not only causes serious environmental pollution, but also the volatilization of organic solvents will cause great economic losses.

Shanghai Keying Environmental Protection Equipment Co., Ltd. selects the regenerative thermal oxidizer (RTO) for the hot melt adhesive coating machine to purify and treat the organic waste gas with oxygen at a certain temperature to generate CO2 and H2O, and release a certain amount of heat. The oxidation reaction process.

principle:

The hot melt adhesive coating machine exhaust gas purifying device heats the organic exhaust gas to above 760 ° C, so that the VOC in the exhaust gas is oxidized and decomposed into CO 2 and H 2 O in the oxidation chamber. The high-temperature gas generated by the oxidation flows through the special ceramic regenerator to warm the ceramic body and “storage heat”, and the “heat storage” is used for preheating the organic exhaust gas that subsequently enters, thereby saving the temperature of the hot melt adhesive coating machine. Fuel consumption. The ceramic regenerator should be divided into two (including two) zones or chambers, and each regenerator undergoes a procedure of heat storage-exothermic-cleaning in turn, and continues to work continuously. After the regenerator is “exothermic”, a part of the clean exhaust gas that has been treated should be introduced to clean the regenerator (to ensure the VOC removal rate is above 95%), and only after the cleaning is completed can the “heat storage” be entered. program. The RTO's furnace structure ensures that the hot melt applicator waste gas is thoroughly mixed in the incinerator and has a sufficiently long residence time to ensure that the VOC oxidation reaction proceeds fully and completely.

Features:

1. Low operating costs and reasonable cost performance.

2. It can handle almost all organic waste gas containing organic compounds and high air volume and low concentration.

3. High purification efficiency, VOCs removal rate ≥95%, three chambers up to 99%

4. The maintenance workload is small and the operation is safe and reliable.

5. The operation is safe and reliable, and the stability is high.

6. Simple operation and high degree of automation.