Rotary Drum Screen Filter 700 m³/h for Wastewater Treatment

Product introduction of Rotary Drum Screen Filter

The rotary drum screen filter 700 m³/h for wastewater treatment provides continuous mechanical screening for fine solid-liquid separation in wastewater pretreatment systems. It is widely used in municipal and industrial applications where stable effluent quality and reliable solids removal are required.

The system integrates a rotating semi-immersed drum, precision mesh panels, and an automatic backwashing system to ensure uninterrupted filtration performance. Wastewater is evenly distributed into the drum, where solids are retained and filtered water is discharged continuously.

Working principle

The rotary drum screen filter system operates through continuous gravity and mechanical filtration.

Wastewater enters the center of the rotating drum and is evenly distributed across the mesh surface. As the drum rotates slowly, suspended solids are trapped on the inner screen surface while filtered water flows outward.

When solids accumulate, a differential pressure or timer triggers the backwashing system. High-pressure spray nozzles clean the mesh from outside to inside, dislodging trapped particles into a sludge collection tank.

The filtration process continues simultaneously during backwashing, ensuring uninterrupted operation and stable water quality output.

Product Parameter Table

Box size (mm)	3300×1800×2150
Drum diameter (mm)	1400
Roller length (mm)	2000
Processing capacity (m³/h)	700
Filter aperture (um)	10-20
Inlet pipe	DN500
Outlet pipe	DN500
Drive motor power	1.5 kW

Main Features

• Continuous operation rotary drum screen filter 700 m³/h for wastewater treatment
• High-efficiency fine screening of suspended solids and fibrous materials
• 304 stainless steel structure for corrosion resistance and long service life
• Automatic backwashing system using filtered water without external supply
• Modular mesh design allows easy replacement and maintenance
• Stable hydraulic performance under variable flow conditions
• Fully enclosed system reduces secondary pollution risk
• Low head loss and high filtration efficiency design

Rotary Drum Screen Filter	Conventional Static Screen
Continuous automatic filtration	Intermittent operation
High flow capacity (700 m³/h)	Limited capacity
Automatic backwashing system	Manual cleaning required
Fine precision screening	Coarse separation only
Fully enclosed structure	Open exposure system

Application Scenarios

• Municipal wastewater treatment plant screening systems
• Industrial wastewater pretreatment processes
• Food processing wastewater solid removal
• Textile dyeing wastewater filtration systems
• Paper mill fiber separation systems
• Chemical wastewater solids removal
• Slaughterhouse wastewater pretreatment
• Stormwater and surface water filtration

Why Choose This System

Compared with conventional bar screens and static filtration systems, the rotary drum screen filter 700 m³/h for wastewater treatment offers:

• Continuous automatic operation instead of intermittent manual cleaning
• Higher fine particle removal efficiency than coarse screening systems
• Smaller footprint compared with sedimentation-based pretreatment units
• Lower head loss and improved hydraulic stability
• Reduced maintenance requirements through automatic backwashing
• Higher adaptability to variable industrial wastewater conditions

This makes it a reliable solution for facilities requiring stable, automated, and high-capacity wastewater pretreatment performance.

FAQ

What is a rotary drum screen filter used for in wastewater treatment?

It is used for continuous fine screening and solid-liquid separation in wastewater treatment systems.

How does a rotary drum screen filter 700 m³/h work?

It separates solids from wastewater using a rotating drum and automatic backwashing system.

What is the advantage of rotary drum screen filter system?

It provides continuous filtration with high efficiency and stable effluent quality.

Can rotary drum screen filter handle high flow wastewater?

Yes, it is designed for high-capacity wastewater treatment up to 700 m³/h.

What industries use rotary drum screen filter equipment?

It is widely used in municipal, food processing, paper, and industrial wastewater treatment.

Why use rotary drum screen instead of static screen?

Because it offers continuous operation, higher precision, and automatic cleaning.

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