The reason why a carbonization furnace is used to remove paint from cans lies in its working principle and advantages. The carbonization furnace uses a high-temperature carbonization process that can decompose the coating into flammable gas and ash-like substances at high temperatures, thereby completely separating the coating from the metal surface. Compared with the chemical paint removal method, carbonization furnace paint removal does not produce waste water or waste gas, and can meet environmental protection requirements after exhaust gas treatment.

In addition, the carbonization furnace has the characteristics of continuous processing. Cans are continuously entered and discharged after carbonization is completed, without the need to load them into the furnace in advance. After the can fragments enter the carbonization furnace, they move from the feed port to the carbon outlet as the main furnace rotates. During the movement, carbonization and paint removal are gradually completed. The carbon outlet has a cooling device, and the can fragments are cooled during the carbon outlet process. This treatment method can remove the coating or paint on the surface of the can and obtain impurity-free metal.

Therefore, using a carbonization furnace to remove paint from cans is an effective and environmentally friendly treatment method that can achieve resource recovery and reduce environmental pollution.