Inlet Screen

Simple plug-in installation

No carry over of debris to clean water side

Only one flow pattern, therefore lesser head loss

Change of the individual mesh panels can be made on floor level

Only one chain is necessary

Maintenance free side bar chain

Very small overall dimensions - considerable cost savings in civil structure

Intensive cleaning of mesh panels

Suitable for process water intakes and waste water treatment plants

Advantages:

Spray-water system with water nozzles and monitoring of the water pressureMesh Panels sickle-shaped with debris carriersDrive unit with two revolving speeds directly acting on the motor shaftPanel with guideways and supporting beam

Moduls

Flow capacity: up to 50,000 m3/h

Mesh panel apertures: 1 10 mmConstruction height above floor: up to 4.5 mRevolving speed: approx. 0.12/0.24 m/sInclination: 90?Discharge height: 0 2.0 mChannel depth: 1.2 15 mChannel width: 1.0 3,5 m

Design Data

 

Raw water flows directly through the mesh panels. The debris retained at the face of the ascending mesh panels is transported with debris carriers to floor level. There it is efficiently removed by means of a spray-water device. Due to the installation across the chamber the Geiger MultiDisc? Screens require a small space only and therefore allow considerable savings in civil structure.

The linked mesh panels are guided on each side forming a unit together with the support. The forces applied by the flowing water to the center of the mesh panels are transmitted via supporting beams into the civil structure. In the center the mesh panels are supported by rollers.

very intensive cleaning of the mesh panels in both directions, i.e. upwards and downwards.

The basis are circulating sickle-shaped mesh panels that are connected at their rear side to a revolving chain installed across the channel. The chain is guided by a deflection unit at the lower part and a sprocket wheel at the upper part. The sprocket wheel is coupled with a drive unit. The MultiDisc?Screen is installed within the intake chamber across the direction of the water flow. For the installation and fixing suitable recess are provided in the channel walls. Above floor a spray-water device is mounted behind the mesh panels. This spray-water system is allowing a

 

Function

 

works. A disadvantage of the thru-flow band screen is that the contaminated water has to flow through the mesh panels twice resulting in a higher loss of pressure. Debris particles being smaller than the mesh size can penetrate through the mesh panel to the clean water side, but is not encouraged to flow through the rear mesh panel. Consequently, debris is retained continuously at the inside of the band screen. Moreover, the debris that is not removed by the spray-water device will be carried over to the clean water side. Looking for a completely new concept and in view of the present requirements Geiger developed the MultiDisc? Screen.

be protected against damages. The usual travelling band screens have an unfavourable flow to the pump due to multiple changes in flow direction thus requiring extensive civil structure

For many years Geiger Travelling Band Screens and Drum Screens have successfully been installed in the water intakes of power plants, petro-chemical, desalination, steel and other processing plants throughout the world. One of the main features is the high throughput capacity with small machine size. The screening being the last cleaning stage in the water inlet is very important as critical plant equipment such as heat exchangers and pumps have to

Water Intake Screen for Power Plant, Petrochemical, Desalination, Steel and other processing plant