The feed is then dried to powder form in a spray dryer. The feed is atomized to fine droplets in a large spray chamber by using either disc atomizer or series of high pressure nozzles. These atomized particles come in contact with hot air and water in it gets evaporated. The feed droplet temperature never reaches the temperature of hot air as it is cooled by evaporative cooling. The dried product is discharge at the bottom of chamber and if required it is passed through instantiser. An instantiser consists of a fluid bed dryer cum cooler. The dried product entrained with the exhaust air is separated in a high efficiency cyclone separator and recycled back to the chamber. The exhaust air is further passed through a wet ventury scrubber for recovering the fines not separated in cyclone. Clean air is then vented to the atmosphere the process air is handled by means of two centrifugal fans. The entire operation of the plant is monitored and controlled through a locally mounted control panel or PLC.