Cost Effective Biological Screw Dewatering Machine

Sludge Dehydrator Description

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The spiral type sludge dewatering machine is a kind of water treatment system, which is widely used in municipal wastewater treatment engineering, petrochemical, light industry, chemical fiber, paper making, pharmaceutical, leather and other industries. The actual operation shows that the sludge dewatering can create considerable economic benefits and social benefits for the customers.

Sludge Dehydrator Process

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Thickening: When the shaft is driven by the screw, moving rings around the shaft move up and down relatively. Most water is pressed out from the thickening zone and fall down to the filtrate tank for gravity;

Dewatering: The thickened sludge moves forward continuously from the thickening zone towards the dewatering zone. With the pitch of the screw shaft thread getting narrower and narrower, the pressure in the filter chamber increases higher and higher. In addition to the pressure generated by the back-pressure plate, the sludge is greatly pressed and dryer sludge cakes produce;
Self-cleaning: The moving rings rotates continuously up and down under the pushing of the running screw shaft while the gaps between the fixed rings and moving rings are cleaned to prevent from clogging that happens frequently for traditional dewatering equipment.

Sludge Dehydrator Model

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Model	DL303
DS capacity  kg/h	90--150 kg/h
Sludge capacity m3/h(2-50g/L)	3-45
Spiral diameter mm	￠310*3
Discharge Distance mm	495
Size  L*W*H  mm	3605*1690*1600
Net.Kg	1520
Run Kg	3080
Power Kw	1.86
Washing Q L/h	120

Sludge Dehydrator Widely Use

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Applicable sludge concentration of 2000mg/L-50000mg/L.

Most especially for the oily sludge.
Fully Automatic Control
Combining with the auto control system, the machine runs very safely and simply and can be programmed according to the requirement of the users. It can operate automatically for 24 hours, unmanned.

Sludge Dehydrator Features

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• Automatic continuous operation
• Compact design with flocculation and dewatering
• Low power and water consumption
• Low operation cost
• No filter cloth, no clogging
• No need for sludge thickener
• Easy operation and maintenance
• No vibration and noise

Sludge Dehydrator Application

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All range of industries ETP & STP
Faecal Sludge management
Primary sludge and biological sludge dewatering
Wastewater treatment plants – New / Existing