Cribas vibratorias, un importante equipo de pretratamiento de residuos reciclaje de botellas de plastico and the waste plastics industry. It can effectively improve the efficiency and quality of waste treatment and reduce the impact of impurities on the quality of recycled plastics.
Introduction of Trommel Screen
Tumbler screen is a kind of efficient screening equipment, widely used in mining, building materials, waste disposal, and other industries. Its unique cylindrical drum structure, through the rotary movement, to achieve material classification screening, can effectively separate particles of different sizes, suitable for processing wet, sticky, or irregularly shaped materials.
Una criba de trómel es un tipo de equipo de separación que se utiliza comúnmente en instalaciones de reciclaje de residuos de plástico para necesidades de procesamiento de gran capacidad. Generalmente, líneas de reciclaje de plástico con una capacidad de producción de 1 tonelada/h o más están equipados con una criba vibratoria para mejorar la eficiencia de la producción.
Working Principle of Trommel Screen
Trommels are based on cylindrical drums with holes of different sizes on the surface of the drums according to the screening requirements. The drum is supported by rollers and rotated by a drive unit, whose axis is usually inclined at an angle of 3°-5° to the horizontal, forming an inclined layout from the inlet end to the outlet end.
El principio de funcionamiento del trómel es cribar y separar los plásticos de desecho a través del tamiz giratorio para separar las impurezas y materiales de diferentes tamaños y densidades. Cuando se trata de residuos de plástico, especialmente materiales como botellas de plástico de desecho, el trómel puede separar eficazmente impurezas más grandes, como trozos de madera y piedras.
Whole Process of Screen Tumbler
Trommel drum realizes material classification through the combination of a rotating drum and screen, and its working process can be disassembled into the following core stages:
Step 1–Feeding stage:
The material to be screened enters from the high end of the drum and moves along the inner wall under the action of gravity and drum rotation force.
Step 2–Screening process:
Fine particles fall through the holes of the screen and are taken up by the collection device below; larger particles continue to rotate with the drum and move in the axial direction because they cannot pass through the holes.
Step 3–Discharge stage:
Large particles that do not pass through the screen holes are finally discharged from the outlet at the low end of the drum to complete the classification.
Tumbler Screening Machine Core Advantages
- High-efficiency continuous operation: The drum rotates continuously, enabling 24-hour uninterrupted screening.
- Low maintenance cost: With a simple structure and few wear parts, it reduces downtime for repairs.
- Strong adaptability: The size of sieve holes can be adjusted according to requirements, fitting various material characteristics.
FAQs of Screen Tumbler
¿Cuáles son las causas comunes de la baja eficiencia de cribado en el tambor trommel?
Las causas comunes incluyen el bloqueo de los agujeros del tamiz, la velocidad de rotación del tambor inadecuada, la discrepancia entre el tamaño de los agujeros del tamiz y el tamaño de las partículas del material, o una inclinación del tambor demasiado pequeña, lo que provoca un tiempo de residencia del material insuficiente.
How to solve the problem of sieve hole blockage in the Screen Tumbler?
Measures include: ① Installing built-in spiral blades or brushes to clean sieve holes during rotation; ② Pre-drying wet materials; ③ Using anti-stick coated screens; ④ Regularly stopping for screen cleaning, and replacing woven screens with perforated plate screens if necessary.
How to adjust the screening accuracy of tumbler screens?
Adjustment methods include: ① replace the different aperture screen; ② adjust the drum speed; ③ change the drum angle of inclination
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