
The screening
Screening is a mechanical action which consists of separating different-sized solids using a screen or a perforated sheet. It can be done in dry or wet way. Depending on the size of the elements to separate, different terms are used to qualify this technique:
- scalping for particularly large blocks;
- screening for particle sizes ranging from 1 mm to 10 cm;
- sieving for particle sizes between 40 µm and 1 mm.
CTP has screening and sieving equipment working in continuous way.
Equipment | Cut | Operation type | Capacity (1) |
2 deck vibrating screens | 1-100 mm | Dry and damp | 100 kg/h to 2 t/h |
Dewatering screens | 0.25 -2 - 3 mm | Wet method | 1-17 m³/h |
Rotary screen | 4-35 mm | Dry method | 8 m³/h |
3-deck vibrating sieves | 90 µm to 5 mm | Dry and damp | 50-800 kg/h |
2-deck vibrating sieves | 30 µm to 3 mm | Dry and damp | 50 kg/h to 1 t/h |
Bend screen | 249 µm, 500 µm, 1 mm | Wet method | 2-5 m³/h |