QDEVU® QDLX402 Screw Press Sludge Dewatering Machine

QDEVU Screw Press Sludge Dewatering Machine is designed for efficient thickening and dewatering of liquid sludges that emanate from wastewater treatment processes. Typical applications for wastewater treatment plants include dewatering of thickened or unthickened waste activated sludge (WAS), digested sludge from aerobic or anaerobic processes, and dissolved air flotation (DAF) sludges.

The screw press sludge dewatering machine uses the automatic renewal filter cake filtration technology to replace the traditional filter screen filtration to ensure the continuous and stable sludge water separation effect of the dehydrator. Through the strong extrusion pressure generated by the change of screw diameter and pitch, as well as the small gap between the swimming ring and the fixed ring, it realizes the extrusion dehydration of sludge. It is a new type of solid-liquid separation equipment.

WORKING PRINCIPLE

The wastewater is pushed into the dewatering machine.The sludge will move to the sludge cake outlet under the pressure of the helical aixs blades. Becuse the gap among the helical blades become narrower,so the sludge bear heavier pressure and began to dewatering under the pressure. The water comes out from the space between fixed and moving plates.

FEATURE

• Exclusive pre-thickening enables a wide solid concentration ranging from 10,000mg/l to 50,000 mg/l
• High efficiency with a small footprint
• Low power consumption (less than 5% of a centrifuge)
• Very low water usage (less than 1% of an equivalent belt filter press)
• Auto start-up, run and shutdown
• Self cleaning
• No blocking or backwash water
• Double nozzles for superior cleaning and rinsing
• Able to handle oily sludge as well as fibrous sludge
• Sealed system = No odors/bad smell
• Wear free
• Sludge flow and cake monitoring system
• Exclusive screw shaft for sludge thickening and inorganic material

ADVANTAGES

• Application: widely used in municipal sewage, food, beverage, animal husbandry, printing and dyeing, petrochemical, paper, leather, pharmaceutical and other industries
• No blocking: the unique dynamic and static ring filter slot structure makes the equipment not easy to block
• Control: automatic control is adopted, no personnel are required to operate the equipment, and 24-hour continuous unmanned operation is possible
• Operation cost: integrated design, compact structure, greatly saving operation cost; 24-hour full-automatic unmanned operation, greatly reducing labor costs; The equipment covers a small area and reduces the civil engineering investment
• Light and durable: the body is almost entirely made of stainless steel, and the replacement parts are only the screw shaft and the traveling ring, which has a long service life and is durable

STANDARD SPECIFICATIONS

Notes:
1 Depending on sludge type, polymer type and polymer dose, up to 20% additional throughput may be possible.
2 Depending on sludge type and polymer type, the typical polymer consumption for feed sludge concentration 2 - 5 g/L is 4-8 kg/tonne dry solids processed, and for feed sludge concentration 5 - 50 g/L is 10-25 kg/tonne dry solids processed.

STANDARD INCLUSIONS + OPTIONS

✓= Standard Supply, O = Optional Supply, X = Not Applicable

Disclaimer: QDEVU is continuously updating and improving its products and services, please contact us for more detailed information or to confirm specifications. QDEVU takes no responsibility for any errors resulting from the use of information contained within this document .

CONTACT US FOR MORE DETAILS ABOUT SLUDGE TREATMENT SOLUTION.

If you have specific requirements, contact us about our custom sludge dewatering machine.