The process of shredding waste such as plastic, leather, cloth, wood and industrial textiles through a waste shredder and forwarding it to RDF:

Sorting and impurity removal:
Non-combustible impurities such as metal and glass are removed by manual sorting and mechanical sorting (such as magnetic separator). For textile waste, special attention should be paid to the separation of accessories such as buttons and zippers.

Primary crushing: ‌
A double-shaft shredder is used to crush the mixed material to 100-300mm, with a processing capacity of 20-50 tons/hour. The specially designed anti-entanglement blade can effectively handle fiber-containing fabrics and leather.

RDF production is a systematic waste conversion process, which mainly includes the following key links:

1. Pretreatment stage: The mixed waste is first sorted and magnetically separated to remove large debris and metal components. Then it is evenly fed into the shredder through the plate feeder for primary crushing, reducing the material size to 100-300mm.

2. Fine crushing link: The material after primary crushing is sent to the secondary shredder through the conveying equipment to further crush the material to less than 50mm. This link usually uses a double-axis or four-axis shredder to ensure that the material reaches the uniformity required for subsequent processing.
3. Biological drying treatment: The crushed material enters the biological drying chamber and undergoes aerobic fermentation for 3-7 days under controlled ventilation conditions. This process can use the biological heat generated by microbial activity to evaporate the moisture in the material, reducing the moisture content from the original 30-50% to below 15%.
4. Sorting and refining: The dried material is separated from inorganic substances such as glass and stone and a small amount of residual metal through equipment such as vibrating screens, air separators and eddy current separators to improve the purity of the fuel.
5. Molding and packaging: The refined material is fed into the molding machine and made into cylindrical particles with a diameter of 15-30mm or cubes with a side length of 20-50mm under high pressure. The molded RDF is packaged and stored after cooling and screening, or directly transported to the end of use.

Case: