Description

DAGYEE Screw Press Sludge Dewatering Equipment

Why Choose DAGYEE Screw Press?

Managing sludge disposal is one of the biggest operational challenges for wastewater treatment plants and industrial facilities. Traditional dewatering methods often come with high energy bills, constant clogging issues, and intensive manual labor.

The DAGYEE screw press sludge dewatering equipment offers a smarter alternative. Engineered with a patented moving ring design, this machine delivers consistent performance, minimal maintenance, and exceptional solids capture—all in a compact footprint that fits where other equipment won't.

Whether you're treating municipal biosolids, food processing waste, or industrial effluent, the DAGYEE screw press is built to handle the toughest applications with ease.

2. Working Principle

Thickening Stage: Sludge mixes with flocculant in the mixing tank to form flocs, which enter the chamber formed by the screw shaft and stacked rings.

Dewatering Stage: The screw shaft rotates slowly, pushing sludge forward. As the chamber volume decreases, pressure builds, forcing water out through the gaps between moving and fixed rings while solids form a cake and discharge.

Self-Cleaning Stage: As the screw rotates, relative motion between moving and fixed rings automatically cleans the filter gaps, preventing clogging without frequent manual cleaning.

3. Key Advantages

• No Clogging: Self-cleaning action between moving and fixed rings eliminates clogging issues
• Low Energy: Only 2-5 rpm, consuming 1/3 the energy of Belt filter presses
• Fully Automatic: PLC control with programmable cycles, unattended operation
• Compact Footprint: 50% smaller than belt filter presses
• Low Water Consumption: Only 24-216 liters per hour for cleaning
• Wide Application: Handles low-concentration sludge (≥2000mg/L), no thickening tank needed
• Long Service Life: SUS304 stainless steel, corrosion-resistant, designed for 10+ years

4. Technical Specifications

Model	DS Capacity (kg/h)		Sludge Capacity (m³/h)			Power (kW)	Dimensions (mm)			Operating Weight (kg)
	Min	Max	2g/L	10g/L	20g/L		L	W	H
DL101	3	5	1.5	0.6	0.25	0.2	1816	756	1040	290
DL131	6	10	3.0	1.2	0.5	0.36	1969	756	1040	315
DL202	18	30	9.0	3.6	1.5	1.1	2930	1257	1470	1110
DL301	30	50	15.0	6.0	2.5	0.74	3255	985	1600	1320
DL302	60	100	30.0	12.0	5.0	1.1	3455	1295	1600	2230
DL352	120	200	60.0	24.0	10.0	6.0	4420	2100	2250	4850
DL403	180	300	90.0	36.0	15.0	6.0	4420	2100	2250	4850

5. Comparison with Traditional Equipment

6. Selection & Maintenance

Selection Guide:

• Lower inlet concentration requires larger capacity models
• Higher concentration (>20g/L) allows smaller models
• For uncertain sludge types, provide samples for lab testing

Selection Reference:

• <120 kg-DS/day: DL101 / DL131
• 120-300 kg-DS/day: DL202
• 300-800 kg-DS/day: DL301 / DL302
• 800-1500 kg-DS/day: DL302 / DL303
• 1500 kg-DS/day: DL352 / DL403 or multiple units in parallel

Daily Maintenance:

• Daily: Check motor current, operating sound, discharge effect
• After each shift: Rinse with clean water to prevent sludge drying
• Monthly: Lubricate bearings and gearbox
• Quarterly: Inspect ring stacks and screw shaft wear
• Annually: Full disassembly inspection and replacement of wear parts

7. Applications

8.Installation & Operation

Simple Installation
The DAGYEE screw press arrives fully assembled on a structural steel skid. All components—including the screw press, flocculation tank, control panel, and piping—are pre-mounted and wired. Installation requires only connecting power, feed, and discharge lines.

User-Friendly Operation
The PLC-based control system features a clear HMI touchscreen that displays real-time operating parameters. Operators can:

• Set automatic start/stop cycles

• Adjust screw speed to match sludge characteristics

• Monitor motor load and alarm conditions

• View historical performance data

Low Maintenance
With no complex filter belts to replace and no high-speed rotating parts, maintenance requirements are minimal:

• Monthly lubrication of bearings

• Quarterly inspection of ring stack wear

• Annual drive unit service

9. Service & Contact

Proven Experience
With over 20 years in the water treatment equipment industry, DAGYEE has supplied screw press systems to customers across 50 countries. Our equipment is trusted by municipalities, industrial facilities, and agricultural operations worldwide.

Quality Construction
Every DAGYEE screw press is manufactured in our 65,000 m² ISO 9001-certified facility. Key components are constructed from SUS304 stainless steel, with passivation treatment for enhanced corrosion resistance.

Get in Touch:
 Free Application Assessment – We'll look at your wastewater and suggest what fits
 Customized Design – Built around your flow, space, and treatment goals
 Fast Quotation – Detailed estimate within 48 hours
 Project References – We'll share examples of similar installations
 Factory Tour – Come see our facility

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