82-150 m³/h Rotary Drum Filter for Chemical Sludge Dewatering

Product introduction of 82-150 m³/h Rotary Drum Filter

The 82-150 m³/h rotary drum filter is a mechanical wastewater screening equipment used in pretreatment stages of municipal and industrial treatment systems. It is constructed with corrosion resistant stainless steel and features a rotating cylindrical screen with adjustable filtration openings typically between 0.3 and 1 mm. Wastewater is evenly distributed through an overflow weir system before entering the rotating drum, where suspended solids are intercepted and separated. A built in high pressure flushing system ensures continuous cleaning of the screen surface. It is suitable for applications requiring reliable fine screening and stable operation under variable inflow conditions.

Working principle

Wastewater enters the rotary drum filter through a pipe and flows into an overflow weir distribution chamber. After stabilization, water is evenly distributed onto the rotating drum screen.

The drum rotates in the opposite direction of the water flow, creating relative shear motion that enhances solid separation. Suspended particles are intercepted by the screen while filtered water passes through and exits the system.

A high pressure flushing system sprays fan shaped water jets onto the screen surface to remove accumulated solids, ensuring continuous filtration efficiency and preventing clogging during long term operation.

Product Parameter Table

Filtering area	7 m²
Filtering mesh	60-250
Water inlet flow	82-150 m³/h
Filtering drum rotating speed	4-8
Washing water pressure	1.5-2.5
Motor power	1.5 kW
Filtering diameter	*800 mm
Filtering drum length	2000 mm
Weight	2 t

Main Features

• Rotating drum screen design ensures continuous filtration with stable hydraulic separation efficiency performance
• Overflow weir distribution system provides uniform water flow and prevents hydraulic short circuit issues
• High pressure fan shaped flushing system maintains clean screen surface and prevents clogging accumulation
• Adjustable fine mesh openings between 0.3 and 1 millimeter allow flexible particle separation control
• Stainless steel corrosion resistant construction ensures long service life in harsh wastewater environments
• Relative shear motion between water flow and screen improves solid separation efficiency significantly

Application Scenarios

• Municipal wastewater treatment plants for fine screening of sewage and pretreatment protection systems
• Industrial wastewater facilities in food processing, textile, and chemical manufacturing industries
• Hotel and commercial wastewater systems requiring compact and reliable pretreatment equipment
• Paper and fiber wastewater screening for removal of hair, fibers, and suspended solids
• Surface water intake pretreatment systems for protecting downstream filtration and biological units

FAQ

1. What particle size can this rotary drum filter remove?
It typically filters fine solids between 0.3 and 1 millimeter depending on screen configuration.

2. How is the screen cleaned during operation?
A high pressure flushing system sprays water to continuously clean the rotating screen surface.

3. Can it handle fluctuating wastewater flow?
Yes, the overflow distribution system ensures stable performance under variable inflow conditions.

4. What industries commonly use this equipment?
It is widely used in municipal, industrial, food processing, and surface water treatment systems.

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