Screw press washer is a washing and thickening equipment widely used in pressing and filtering the pulp with high consistency mechanically. It is suitable for waste paper pulping and dispersion system as well as washing and thickening of pulp with high consistency, and also suitable for washing and thickening sulfate wood pulp and ammonium sulfite straw pulp.

Design features:

Screw press washer consists of press screw, discharge controller, filter drum, inlet hopper, vat, end bracket and driving device, etc. pulp is fed into the screw press washer through the hopper. When the rotating roll revolves, the pulp passes from feeding section to the pressing section and certain thickening ratio and counter pressure from the outlet controller, the pulp is pressed and dewatered through the nearby filter drum. The water squeezed out of the pulp flows into the save-all pan and discharges at water outlet. The thickened pulp is discharged at pulp outlet.

With pneumatic discharging controller, the outlet consistency can be controlled by regulating the cylinder's pressure so as to thicken the inlet pulp with the consistency of 3~6% and 7~12% to 25~35%.

As the screw roll is driven by the driving device consisting of reducer and V-belt, the process of pressing and thickening can be ensured stable and smooth.

With its simple structure and anti-slip mechanism mounted on the filter drum, the press washer can work more reliably. It is easier and safer to operate and maintain.

Main technical data:

Type		DLJ1	DLJ2	DLJ3	DLJ4	DLJ5		DLJ6	DLJ7	DLJ8	DLJ9
Screw dia. (mm)		300	350	400	450	525		600	700	700	800
Inlet consistency (%)		10~12					6~8
Outlet consistency (%)		28~32					30~32
Air pressure (Mpa)		0.2~0.8
Capacity (t/24h)	OCC	25~30	30~40	50~60	60~80	80~100		110~150	180~220	180~220
	Deinked pulp	15~20	25~30	40~50	50~60	60~80		90~120	130~150	130~150	150~180
power (kw)	OCC	22	30	37	45	55		75	110	110
	Deinked pulp	18.5	22	30	37	45		55	90	90	110