15–25 m³/h Belt Filter Press for Gravity Thickening Sludge

Product introduction of 15–25 m³/h Belt Filter Press

The 15–25 m³/h belt filter press is a sludge dewatering system designed to handle high water content sludge from municipal and industrial wastewater treatment processes. It combines gravity concentration, mechanical pressing, and sludge conditioning within a continuous operation line. The unit is constructed for stable performance under variable feed conditions and supports adjustable mesh belts and stepless speed regulation. It eliminates the requirement for conventional sludge thickening tanks, reducing infrastructure investment. It is suitable for facilities requiring efficient solid-liquid separation, reduced sludge volume, and stable long-term operation across diverse wastewater applications.

Working principle

Sludge is first introduced into a conditioning zone where flocculation improves solid-liquid separation. It then enters a gravity drainage section where free water is removed through a permeable belt.

The partially thickened sludge moves into a compression zone where it is gradually pressed between multiple rollers. Mechanical pressure increases progressively, forcing additional water out through the filter belt.

The dewatered sludge is discharged as a solid cake, while filtrate is collected separately. The system operates continuously with adjustable belt speed to maintain stable dewatering efficiency under varying feed conditions.

Product Parameter Table

Belt width	2000 mm
Treatment capacity (inlet sludge concentration 0.8~1.5%)	15-25 m³/h
D.S Dired sludge	210-300 kg/h
Moisture content of the filter piece	75-85 %
Service power
The motor for driving belt (frequency control)	0.75 kW
The motor for mixing	1.1 kW
The motor for drum thickener	0.75 kW
Lower collecting tray for pressed filtrate	none
Reference appearance size
L	5150 mm
W	2750 mm
M	3190 mm
Base dimension L1 x W1	2715×2420 mm
Base dimension L1 x W2	950×1100 mm
Reference weight	3500 kg

Main Features

• Integrated gravity thickening and pressure dewatering process reduces overall sludge treatment system complexity
• Continuous automatic operation ensures stable performance under fluctuating sludge concentration conditions in treatment plants
• Adjustable belt mesh and stepless speed control allow adaptation to different sludge characteristics
• High dewatering efficiency produces filter cake with increased solid content and reduced moisture level
• Low energy consumption design minimizes operational cost while maintaining consistent separation performance
• Simplified maintenance structure reduces downtime and supports long-term reliable industrial operation

Application Scenarios

• Municipal wastewater treatment plants for sludge concentration and dewatering processes
• Industrial wastewater systems including food processing, chemical, and textile industries
• Paper and leather manufacturing wastewater sludge treatment and solid-liquid separation
• Aquatic product processing wastewater with high organic sludge content
• Mineral and separation industries requiring continuous sludge dewatering operations

FAQ

1. Does this equipment require a sludge thickening tank?
No, it can directly dewater high moisture sludge without a traditional thickening tank.

2. Can the machine operate continuously?
Yes, it is designed for fully automatic and continuous operation.

3. What types of sludge can it handle?
It handles municipal, industrial, and organic high moisture sludge.

4. Is the belt speed adjustable?
Yes, it features stepless speed regulation for different sludge conditions.

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