2 Filter Cake Feeding
A common method for the drying of fine products at processing plants containing their own power generation plants is to feed dewatered material (filter cake) into a vertical column carrying the power station exhaust gas stream. The residual heat in the gas stream drives the remaining water from the cake leaving dry product at the collection point. In this system several conditions are required for optimal operation. The product needs to be delivered at an even flow rate and clumps are to be avoided. Also, exhaust gas flow out of the material feed system needs to be considered and negated.