Screw Press

PRODUCTS

KINGWELL Screw Press is a cost-effective sludge dewatering equipment that uses the principle of screw extrusion, through the strong compressive force generated by changing the screw diameter and screw pitch, and the tiny gap between the floating ring and the fixed ring. The screw dehydrator consists of a dewatering drum, a dosing tank, a flocculation tank, and a control cabinet. The dewatering drum thickens and dewaters the sludge; in the dosing tank, the required amount of sludge flows through a V-shaped overflow into the flocculation tank, where the sludge is mixed with the reagent. The control cabinet provides control over the system operation in manual/automatic mode. Widely used in wastewater treatment projects in municipal, aquaculture, food, starch, petroleum, pharmaceutical, chemical, paper, leather and other industries

Working principle of Screw Press

The operating principle of screw press is to mechanically compact the solid phase of sludge and squeeze water out of it. After treatment with chemical dosing unit, the sludge is fed into a dewatering drum. During the dewatering process, filtrate flows out of the gaps between the rings. The width of the gaps decreases in the direction of cake exit, being larger in the thickening zone. The pitch of the screw turns also decreases, creating pressure in the dewatering zone, while the volume decreases. After treatment, the sludge is sent to a dewatering drum. During the dewatering process, cake is formed (discharged into a container) and filtrate (sent for further purification). The output is a dried cake (paste-like substance) with a moisture content of less than 80%.

Technical parameters for Screw Press

Model	Screw Dia. mm	Screw Nos.	Power KW	Agitator Power KW	Pressure Mpa	Flushing Water L/H	Weight kg	Standard Capacity (For Dry Solids） Kg/h	Capacity for Sludge with Different Concentration
Model	Screw Dia. mm	Screw Nos.	Power KW	Agitator Power KW	Pressure Mpa	Flushing Water L/H	Weight kg	Standard Capacity (For Dry Solids） Kg/h	10000 mg/L	20000 mg/L	30000 mg/L	40000 mg/L	50000 mg/L
KWDL101	100	1	0.18	0.18	0.1-0.2	24	220	5～7	～0.5m³/h	～0.25m³/h	～0.2m³/h	～0.15m³/h	～0.14m³/h
KWDL201	200	1	0.37	0.18		32	420	15～20	～1.5m³/h	～0.75m³/h	～0.6m³/h	～0.5m³/h	～0.4m³/h
KWDL202		2	0.74	0.55		64	550	30～40	～3m³/h	～1.5m³/h	～1.2m³/h	～1m³/h	～0.8m³/h
KWDL203		3	1.11	0.55		96	700	45～60	～4.5m³/h	～2.25m³/h	～1.8m³/h	～1.5m³/h	～1.2m³/h
KWDL301	300	1	0.75	0.55		40	900	50～70	～5m³/h	～2.5m³/h	～2m³/h	～1.5m³/h	～1.4m³/h
KWDL302		2	1.5	0.75		80	1400	100～140	～10m³/h	～5m³/h	～4m³/h	～3m³/h	～2.8m³/h
KWDL303		3	2.25	1.1		120	1900	150～210	～15m³/h	～7.5m³/h	～6m³/h	～4.5m³/h	～4.2m³/h
KWDL304		4	3	1.1		160	2500	200～280	～20m³/h	～10m³/h	～8m³/h	～6m³/h	～5.6m³/h
KWDL401	400	1	1.5	1.1		80	2200	130～160	～13m³/h	～6.5m³/h	～5m³/h	～4m³/h	～3.2m³/h
KWDL402		2	3	1.5		160	3500	260～320	～26m³/h	～13m³/h	～10m³/h	～8m³/h	～6.4m³/h
KWDL403		3	4.5	2x1.1		240	5500	390～480	～39m³/h	～19.5m³/h	～15m³/h	～12m³/h	～9.6m³/h
KWDL404		4	6	2x1.1		320	7000	520～640	～52m³/h	～26m³/h	～20m³/h	～16m³/h	～12.8m³/h

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