Internal Flow Drum Screen

An internal flow drum screen is a mechanical industrial wastewater treatment equipment used to separate solid materials from wastewater. Its rotating drum structure provides continuous screening and reduces the amount of solids reaching downstream treatment equipment.

Internal flow drum screens are suitable for industrial applications requiring the removal of fine solids, fibers and suspended particles and can be integrated into various wastewater treatment processes.

What Is an Internal Flow Drum Screen?

In an internal flow drum screen, wastewater is fed into the inside of the rotating drum. Water passes through the wedge wire screen or perforated sheet surface while solids larger than the screen openings remain inside the drum.

This system provides mechanical separation of solid materials from industrial wastewater. The screen type and opening size can be selected according to wastewater characteristics and the required screening accuracy.

Working Principle

Wastewater enters the internal section of the drum and is distributed across the screening surface. As the drum rotates, screened water passes through the surface into the collection section while solid materials remain inside the drum.

The retained solids are transported toward the discharge section by the rotation of the drum and the internal conveying system. Automatic spray nozzles can be used to keep the screen surface clean and reduce clogging. This allows the rotary drum screen to operate continuously.

Technical Features

AISI 304 or AISI 316 stainless steel construction options
Wedge wire or perforated sheet screen surface
Different screen opening options
Motor and gearbox driven rotating drum
Automatic washing nozzles
Continuous operation
Compact design
Custom manufacturing according to flow rate and solids load

Applications

Internal flow drum screens are used in industrial wastewater treatment applications where solid materials must be mechanically separated from water.

Industrial wastewater treatment plants
Food and beverage processing plants
Slaughterhouses and meat processing facilities
Textile industry
Paper and pulp industry
Leather industry
Plastic recycling and washing lines
Process water treatment and recovery systems

Removing solids at the beginning of the treatment process helps reduce the solids load on pumps, pipelines and downstream treatment equipment.

Akfen Engineering designs and manufactures internal flow drum screens according to plant flow rate, wastewater characteristics, solids load, screen opening and material requirements.

Drum screens can be manufactured in different capacities and dimensions for industrial wastewater treatment projects. Contact Akfen Engineering for drum screen selection, technical specifications and pricing information.