Efficient Tumbler Screen for PET Bottle Recycling Screening

Tumbler screens, an important pre-treatment equipment in waste plastic bottle recycling 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. Contents...

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Тумблерные экраны - важное предварительное оборудование для переработки отходов переработки пластиковых бутылок 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.

Трубчатый экран и линия мойки ПЭТ-бутылок

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.

Трубчатый экран - это тип оборудования для сепарации, широко используемый в установках по переработке пластиковых отходов для обработки больших объемов. Обычно линии по переработке пластика с производительностью 1 тонна/час или более оснащены тумблерным экраном для повышения эффективности производства. линии переработки пластика с производительностью 1 тонна/час и более оборудованы тумблерным экраном для повышения эффективности производства.

trommel drum for sale
Trommel drum for sale

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.

Принцип работы трубчатого экрана заключается в сортировке и разделении пластиковых отходов с помощью вращения тумблерного экрана, чтобы отделить примеси и материалы различного размера и плотности. При обработке пластиковых отходов, особенно материалов, таких как пластиковые бутылки, трубчатый экран эффективно отделяет крупные примеси, такие как деревянные обломки и камни.

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.
trommel
trommel

FAQs of Screen Tumbler

What are the common causes of low screening efficiency in the trommel drum?

Common causes include sieve hole blockage, improper drum rotation speed, mismatch between sieve hole size and material particle size, or too small drum inclination, causing insufficient material residence time.

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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tumbler screening machine
tumbler screening machine

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