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The Triple Grid cooler operates by sucking air through a product bed which is variable in depth. New product is
continuously fed in through the inlet valve, while the Triple Grid discharger ensures smooth discharging of
cooled product into the hopper.
The gear motor driven discharger is triggered by level or temperature sensor. Discharging speed is adjustable
through a hand wheel, or a two position system with pneumatic cylinder. The Triple Grid discharger is particularly
suited to pelleted products with good fl owing capabilities. Typical applications are for cool ing of feed pellets,
wood pellets, pulp pellets, etc.
Total emptying
A pneumatic cylinder opens and closes the grid completely at the end of the run to make sure no pellets are left behind (standard on RS, optional on RP).
Cooler fire safety
A fire valve in the hood cuts off the supply of fresh air in case temperature in the cooler reaches a pre-set limit (optional).
Operator safety
Sensors and control systems ensure that no access to the inside of the equipment is possible without first shutting down all moving parts (standard).
Bevelled corners
Bevelled corners in the hopper prevent product or product fines accumulations.
Power failure protection
A second pneumatic cylinder is employed to close the grid immediately when there is a power failure in the plant (optional).
Two discharge positions selection
A pneumatic cylinder is used to select between 2 different discharge position for products of different diameters (optional).
Cooler insulation
Insulation of the hood and bin walls leads to a significant reduction in the risk of internal condensation (optional).
Air flow control
With the Automatic
Air Flow Control Valves air volume can be accurately controlled. There is automatic stabilisation of air volume, regardless of the bed depth and the required air volume can be recipe dependent. No more blow holes during start up or emptying, no more excessive amounts of fines flying into the cyclone (optional).
Absorption of fats
When fats are added just upstream of the cooler, the Geelen Clam Shell Inlet Valve will ensure a thorough absorption into the product before cooling starts. This reduces pollution of the air system and product (optional).
Efficient change over
An Intermediate Gate installed above the main cooler deck will reduce the downtime in between any two product runs, without any compromise to efficiency or product quality (optional).
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