Trommels are mechanical screening machines, trommel screens are used to separate materials. They are often used in mineral and solid-waste processing industries. Additionally, they are used to remove fines from a given waste stream. A trommel consists of a wedge wire cylindrical drum that is usually elevated at an angle at the feed end.
How do recycling trommel screens work?
Trommel screens separate materials by size. For example, they are sometimes used for separating biodegradable fraction of mixed urban waste or separating different sizes of crushed stone. Contractors may screen their site debris into two segments; a saleable topsoil for farms, nurseries and site-work, as well as rock cleaning for aggregates or landscaping work. In addition, this allows the contractor to resell their waste instead of incurring the cost of sending it for disposal.
Material is fed into the trommel drum and is lifted up by the rotation and aerated as it falls back down. This action is repeated with each revolution along the length of the screening drum. Therefore smaller segments pass through the screen openings. In the meantime, larger fractions tumble towards its eventual exit at the rear of the trommel drum.
Trommel screen features
- Heavy duty robust build
- Low maintenance and highly efficient
- Screen drums made to customer specification
- Screening of even the heaviest materials, also with multiple fractions possible
- Segregate saleable topsoil and rock, therefore significantly reducing the volume of waste
- Versatile screening solutions with minimal set up time
- Various mesh size apertures available
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