Working principle of starch residue dryer

Starch residue is a by-product of potato, sweet potato, cassava and other agricultural products after starch production. The moisture content is about 80%-85%. It is first passed through a special dehydrator, and the moisture is removed to about 68%. The screw conveyor is sent to the mixing drum for baking. The dryer realizes downstream drying. The built-in stirring blade device fully stirs and breaks the starch residue, fully expands the heat exchange area between starch residue and hot gas, and fully heats the starch residue and the hot gas, and the water evaporates and vaporizes quickly, reaching about 35% , After completing the drum drying process, it is discharged by the screw conveyor, enters the semi-wet starch residue special crusher, crushes the starch residue to a particle size below 1mm, enters the pulse air drying process, and quickly drops below 12%. (It can avoid the occurrence of saccharification and gelatinization of the starch residue during the drying process, which will cause the appearance of the starch residue to turn black). The dry powder is recovered by the cyclone unloader and the pulse bag filter, and the exhaust gas is discharged up to the standard to complete the whole drying process. Dryprocess. A shock cleaning device is installed inside the drum to prevent starch residue from adhering to the wall of the drum. The equipment adopts Dingli company's "mechanical dehydration + drum drying + pulsed air flow" technology, which effectively solves the problem that traditional dryers cannot dry cassava and potato residue. The dried material has good color and good quality, and the production line is energy-saving and environmentally friendly. , Safe and stable operation, the dried starch residue can be used for animal feed.

If you want to know more about the technical process of starch residue drying equipment, you can consult online, and we will be happy to answer you.