Sorters for Accurate and Efficient Material Separation
The need to sort materials arises at various stages of both production and recycling processes. Materials are often required to be separated by size or type. For size-based sorting, different types of screens are employed.
The choice of machine type and size depends on the nature of the material, its volume, and the desired output fraction. The most commonly used sorters include vibratory, rotary, and star screens.
Star Screens
Star screens are used for sorting waste materials with high hourly throughput, as well as for damp or sticky waste. Their construction consists of a system of shafts, onto which rubber or metal stars are mounted via spacer tubes. These stars rotate in the direction of the material flow and are driven by a gear system via a chain. Smaller fractions fall through the gaps between the stars, while larger pieces continue along the top of the screen to the oversize discharge.
Vibratory Screens
Vibratory screens are used for precise separation of bulk, non-sticky materials. They can feature multiple decks, allowing simultaneous sorting into several fractions, including very fine fractions from 1 mm upwards.
Different types of separators are employed to handle slightly sticky materials, using vibratory screens equipped with so-called ball cleaners that keep the screen surface clean and prevent clogging. The screens can be made of wire mesh or perforated plate, depending on the properties of the material being sorted.
For larger waste materials, finger vibratory screens. Principem třídění je posun odpadního materiálu po třídicích mřížích, které jsou vůči sobě naskládány v klesající kaskádě. Rozteč rastru třídicí mříže určuje velikost podsítné a nadsítné frakce. Tyto třídiče lze využít i u sticky waste as well and can separate materials from 10 mm upwards.
DEOS Technology supplies vibratory screens from reputable Czech manufacturers, providing full warranty and after-sales support.
Rotary Screens
Rotary screens are used for materials with high throughput, including wet and sticky waste. Material is moved inside a rotating drum equipped with a sizing grid or interchangeable screens. Twin-drum designs can separate material into up to three output fractions. This tumbling action minimises screen clogging.
Rotary screens can be stationary or mobile, powered by a diesel generator without the need for an external electrical supply. They are ideal for sorting municipal waste, soil, sand, gravel, wood chips, compost, construction debris, or recyclates..
DEOS Technology supplies rotary screens from reputable European manufacturers, ensuring full service, just as with equipment sourced from domestic producers.
