Screw Press Dewatering Machine 1

Product Overview

This GDDL series screw press dewatering machine is core core finishing unit of Complete sludge treatment equipment and key constituent of complete Integrated sludge dewatering system, essential core host of Full set municipal sludge processing machine and mainstream model of professional Industrial sludge thickening & dewatering equipment, perfectly matched with upstream Automatic sludge dosing & conveying unit for flocculant mixing and continuous sludge volume reduction. Covering GDDL101~GDDL404 full specification range, it adopts screw extrusion and fixed/moving ring clearance filtration principle to reduce raw sludge moisture from around 98% down to approx 85% for subsequent sludge disposal.

Features

• Integrated all-in-one layout combining flocculation mixing tank, dosing system and main dewatering body saves plant floor space, optimizing overall layout of full-set Complete sludge treatment equipment and Integrated sludge dewatering system
• Unique self-cleaning moving & fixed ring structure avoids clogging drastically, cutting washing water consumption and lowering extra water circulation cost for whole Full set municipal sludge processing machine production line
• Fully enclosed running structure effectively isolates malodorous gas to improve workshop environment, stable continuous dewatering guarantees steady discharge of dry cake after Industrial sludge thickening & dewatering equipment processing
• 24h unattended automatic running supported by matched integrated electric control cabinet, reducing manual operation cost and realizing seamless linkage with front-end Automatic sludge dosing & conveying unit
• Low-speed screw rotation brings low power consumption, low vibration and low noise, lowering long-term operating expense of whole municipal Complete sludge treatment equipment system
• Simple daily maintenance design shortens downtime, improving continuous operation rate of full Integrated sludge dewatering system.

Technical Parameters

Specification series: GDDL101~GDDL404; Single unit processing capacity Q:1~40m³/h; Inlet raw sludge moisture: around 98%; Discharged dewatered cake moisture: around 85%; Recommended PAM dosing ratio vs dry solid:0.2%~1%; Core function: mechanical extrusion dewatering for sludge volume reduction; Main composition: screw main body, drive assembly, filter ring set, flocculation mixing system and machine frame; Control configuration: integrated electric cabinet supporting manual/automatic mode, centralized power supply & fault alarming for sludge feeder, chemical dosing pump and dewatering host; Working flow: raw sludge lifted into mixing tank, quantitative PAM added for full flocculation, qualified floc flows into screw host for progressive extrusion dewatering, filtrate drains via ring gap while solid cake discharges from terminal outlet.

Customization Service

Custom non-standard flow beyond 1~40m³/h range by combining multi-unit parallel layout for large-scale Complete sludge treatment equipment and Integrated sludge dewatering system; adjust screw pitch and ring clearance to optimize final cake moisture matching downstream disposal requirement of Full set municipal sludge processing machine; modify integrated dosing cabinet program to realize synchronous linkage with feeding parameters of upstream Automatic sludge dosing & conveying unit; upgrade anti-corrosion material of screw shaft and filter rings for high corrosive industrial sludge to extend service life of customized Industrial sludge thickening & dewatering equipment; configure multi-set centralized PLC control for full automatic whole-line linkage of complete sludge treatment plant.

Production Process & Quality Control

1. Step1 Raw stainless steel and alloy material anti-abrasion & anti-corrosion inspection before screw shaft, fixed/moving filter ring blanking processing for Complete sludge treatment equipment core component production
2. Step2 Precision machining of variable-pitch screw spindle and filter ring group, frame welding and mixing tank integral forming for Industrial sludge thickening & dewatering equipment host
3. Step3 Complete dosing system piping assembly, electric control cabinet programming and interlock debugging with matched Automatic sludge dosing & conveying unit
4. Step4 Full-load continuous feeding dewatering test to verify cake moisture and processing stability for full Integrated sludge dewatering system and Full set municipal sludge processing machine
5. Step5 Anti-rust surface finishing and export wooden case packaging for qualified finished screw press dewatering machine.

Customer Testimonials and Reviews

• European Sludge Treatment Contractor: This screw press becomes core dewatering host of our full Complete sludge treatment equipment, stable moisture reduction greatly optimizes running economy of whole Integrated sludge dewatering system and downstream sludge disposal.
• Southeast Asia Municipal Sewage Plant Purchaser: Integrated dosing-dewatering all-in-one design perfectly matches our complete Full set municipal sludge processing machine and front-end Automatic sludge dosing & conveying unit.
• Middle East Environmental Equipment Distributor: Customized GDDL series Industrial sludge thickening & dewatering equipment has become standard dewatering host for local municipal sludge treatment tender projects equipped with full-set Complete sludge treatment equipment.

FAQ

• Q: What’s the standard inlet and outlet sludge moisture index?
  A: Inlet raw sludge around 98%, final dewatered cake approx 85% after extrusion processing of Industrial sludge thickening & dewatering equipment.
• Q: What’s the recommended PAM dosing proportion?
  A: PAM additive dosage 0.2~1% against sludge dry solid for ideal flocculation matching Automatic sludge dosing & conveying unit.
• Q: Why can this machine avoid filter blockage?
  A: Self-cleaning moving/fixed ring reciprocating friction prevents sludge adhesion, cutting washing water cost of whole Complete sludge treatment equipment.
• Q: What control modes are available on integrated control cabinet?
  A: Manual and automatic dual control to realize coordinated operation with upstream and downstream of full Integrated sludge dewatering system and Full set municipal sludge processing machine.