Fluidised Bed Sand Cooler

Return Sand Temperature, after the vibratory shake out in a mechanized green sand foundry is around 200°C. In a metal-poured mould the sand temperature adjacent to the metal surface area is even higher. The quantity of heat to be removed depends on the sand to metal ratio and the holding time of metal in the mould. The return sand temperature at the inlet of the cooler is around 100°C. The sand temperature influences the quality of the mould and thus the surface finish of the casting. So, sand cooling plays a very prominent role in a foundry.

Our state-of-the-art sand cooling systems are constructed with a specially designed mesh deck and water chamber. The water chamber is built with several Stainless-steel pipes connected parallel to each other and water is circulated through them. Fins over the pipes help in heat dissipation from the sand. Also, Fresh air is blown through the perforated chamber, and at the same time water mist is sprayed over the sand bed from nozzles located in the chamber. In the Vibrating conveyor turbulence caused by the air blown ensures that sand & water mix well so that the water evaporates, and the sand is cooled.