Inlet Screens

Screening equipment is an important preliminary stage in the total pollution reduction process as it removes the bulk of the non biodegradable matter, such as plastics, woven materials, pieces of wood and metallic items from the sewage stream.

Screening removes materials from the liquid stream that contribute a significant solid source of BOD or provide problems to mechanical equipment by blockages or impact damage.

The EPCO Australia range of Inclined bar, Curved bar, Radial bar  and manual raked bar screens are all designed for removal of screenings from the waste water stream. When clients require Step type, Brush type, Back-Raked and Static Screens, EPCO Australia sources these machines from a select range of international manufacturers.

Due to the emphasis on the removal of solids from the flow stream EPCO Australia offers screenings handling equipment as an option.

A range of good quality, compatible Screenings Conveyors, Dewatering Presses and Bagging Units are available to provide a complete solution to a screening problem.

Inclined Bar Screen

The EPCO Australia inclined mechanically raked bar screen features robust construction using quality materials and components throughout, with an emphasis on long term durability in the corrosive atmosphere which exists around the inlet structure of a biological waste water treatment facility.

Inclined bar screen

In operation, sewage flows through the inclined screen, approaching from the upstream side and after passing through the screen, departing on the downstream side. The screen is periodically raked by a mechanised comb system which is actuated either by level switches mounted in the channel upstream of the screen or by time clock. The screenings collected by the moving combs are removed by a doctor blade at the top of the comb travel.

The moving combs are suspended between two endless side chains which are driven through a head shaft and sprockets. The gear motor and moving comb system is protected from damage by a torque overload coupling with a micro switch.

The screenings removed by the doctor blade drop onto a skid plate which transports the screening down to a container, belt conveyor or sluice pipe.

A range of good quality, compatible Screenings Conveyors, Dewatering Presses and Bagging Units are available to provide a complete solution to a screening problem.

Back to Top

Curved Bar Screen The EPCO Australia curved bar screen features robust construction using quality materials and components throughout, with an emphasis on long term durability in the corrosive atmosphere which exists around the inlet structure of a biological waste water treatment facility.
In operation, sewage flows though the curved screen, approaching from the upstream side and after passing through the screen, departing on the downstream side. The screen is periodically raked by a mechanised comb which is actuated either by level switches mounted in the channel upstream of the screen or by time clock.
The screenings collected by the moving comb are cleaned from the comb by a doctor blade at the top of the comb travel. The screenings removed by the doctor blade drop onto a skid plate which transports the screening down to a container, belt conveyor or sluice pipe. A range of good quality, compatible Screenings Conveyors, Dewatering Presses and Bagging Units are available to provide a complete solution to a screening problem.

Back to Top

Radial Bar Screen

Screening equipment is an important preliminary stage in the total pollution reduction process as it removes the bulk of the non biodegradable matter such as plastics, woven materials, pieces of wood and metallic items from the sewage stream.

Features and operation are similar to the curved bar screen. The drive mechanism is simpler for small installations and will remove a larger quantity of screenings due to two cleanings per revolution.

Radial Bar Screen

In operation, sewage flows though the curved screen, approaching from the upstream side and after passing through the screen, departing on the downstream side. The screen is periodically raked by a mechanised comb which is actuated either by level switches mounted in the channel upstream of the screen or by time clock. The screenings collected by the moving comb are cleaned from the comb by a doctor blade at the top of the comb travel.

The screenings removed by the doctor blade drop onto a skid plate which transports the screening down to a screenings dewatering press, belt conveyor or sluice pipe.

A range of good quality, compatible Screenings Conveyors, Dewatering Presses and Bagging Units are available to provide a complete solution to a screening problem.

Back to Top

Step Screen

Step screens have become popular with some clients due to their ability to remove smaller sized solids than the bar type screens. We have access to several makes of this type of machine.

 

KSR step Screen

Back to Top

Brush Type Inclined Screen                                          

These units are inclined screens with a rotary brush type belt cleansing system. This device is strongly favoured by some clients instead of the step screen.

Static Screen These devices are for smaller flows and require manual cleansing. They may be of the inclined bar screen or parabolic static sieve bends as shown in the image opposite. This latter type can remove solids down to 0.5mm size.

Screenings Handling

As a result of the increased volume of entrained sharp objects such as hypodermic syringes and the like, mechanical screenings handling equipment now has a higher profile in the process designer's strategy.

A range of good quality, compatible Screenings Conveyors, Dewatering Presses and Bagging Units are available to provide a complete solution to a screening problem.

Back to Top
Back to Equipment