The Camtac® Eliminator Vibrating Screen Spraybar was developed from the need of plants operating vibrating screens to be able to clean and flush the Spraybar Nozzles while the process is in production. Cleaning of the Nozzles when they are blocked can normally only be carried out when the screen is shut down. Other ‘self cleaning’ types have relied on the water pressure being shut off and then there is little or no force to clean out the blockage except a small spring. 

The Eliminator  Spraybar ‘Eliminates’ this problem by utilising an air cylinder to force out the blockage while at the same time using the water to flush the Nozzle cavity. 

This can all be done while the screen is in operation either manually or completely automatic. In fully automatic mode the manual cleaning process can be implemented at the press of a button in the control cabinet without interrupting the existing cycle. The timer can be programmed to cycle once every 3 hours up to a maximum of 100 hours. For extremely dirty water a timer can be supplied to cycle from 0.3 hour up to 10 hours. The manual push button can be held until the nozzle cavity is clean and upon releasing, the Nozzle returns to its preset opening. 

The Nozzle aperture is fully adjustable from 0 mm to a maximum of 6 mm and is preset before operation only. As each Nozzle is adjustable, the spray pattern for the whole Spraybar can be tailored to the specific load pattern of the screen. 

The Nozzles spray a cone of water onto the deck of the machine. The Nozzle Sprays overlap and the resulting spray pattern has the effect of two Spraybars in one.

The main feed pipe from which the Nozzle Assemblies hang also has a valve that can be opened to flush debris back onto the deck while the screen is in operation. In the fully automatic models this can be manual or fitted with a rotary actuator that can be flushed at any time during the timing cycle or left to be flushed automatically every time the Nozzles are flushed.

Each Hanging Nozzle assembly is also fitted with a manual shutoff valve that allows for Nozzle isolation if the need arises. This can only be operated while the screen is switched off

The Control Box, although shown here fastened to the Pillar, will actually be positioned some distance away from the actual screen to isolate it from the vibrations set up as a result of the screens operation. The tubing supplying the cylinders and rotary actuator will be protected in a sheath on the way to the Spraybar. The tubing connections on the Control Box will be positioned according to the application. This will mean they will also exit from the underneath of the box making a very clean installation.  

The Eliminator Spraybar operates on air pressure only, no electrics or electronics. The cost effective manually operated Spraybar is for plants with a dedicated maintenance team, while the fully automated Spraybar is suitable for plants with minimum supervision. Spraybar systems from one Nozzle to multi-Nozzle can be designed around the plants specific requirements.