The Krima Screw Dewaterer’s concept is built on many years experience of dewatering, with product development having taken into consideration function, reliability and service.
There are three types of Krima Screw Dewaterers; SD, SDC and SDPP. Each model is designed with the same basic principle; a rotating screw in a fixed perforated screen basket.
Krima Screw Dewater’s offer a simple and functional solution for many different conditions.
Features & Benefits
- Different models and sizes
- Can be used on a wide range of raw materials
One advantage with the KRIMA Screw Dewaterer is that practically all fibre suspensions can be treated; normally within the consistency range of 3-20%. The KRIMA Screw Dewaterer can, for example, be used for dewatering of:
- Screen reject
- Cleaner reject
- Knots
- Semi-chemical pulp
- Waste paper fibre
- Chemi-mechanical pulp
- Fibre sludge
- High-yield pulp
Description
All parts in contact with the pulp and backwater are manufactured in acid-proof steel. All mild steel parts are sand-blasted and coated with a 2-component paint. The drive unit consists of a motor, shaft mounted gear and V-belt drive. The screen basket perforation is normally Ø1,5 mm but this is determined for each installation. The minimum hole diameter is 1,2 mm, maximum 5,0 mm. The holes are always conically drilled and the normal open area is approx. 35%. The thickness of the basket is always 5,0 mm and it is manufactured in acid-proof steel. The screen basket is split vertically in order to allow different perforations in the inlet and outlet parts.
