During the brewing process of beer, a large amount of yeast by-products will be produced. Beer waste yeast contains 48% to 55% protein, 23% to 28% carbohydrates, 6% to 8% ribonucleic acid, and 2% B family Vitamins, 1% glutathione, rich amino acids and numerous minerals can be used as livestock feed after drying to increase economic value.

Working principle of waste yeast drying

The yeast dryer is a dryer that heats the material and vaporizes the water by indirect conduction heating, and uses steam to heat. The drying cylinder (drum) is a metal hollow cylinder with a processed outer surface and a very high surface finish. Driven by the transmission device (large and small gear transmission), the drying cylinder rotates around the axial direction and the speed can be adjusted. The slurry is preheated in the preheating tank, preheated to about 50°C, and then fed into the immersion tank at the lower part of the drying cylinder with a feed pump, immersed in the drying cylinder for about 60-80mm, and the outer surface of the rotating drying cylinder is coated with a A uniform layer of slurry (that is, film thickness), the steam pressure in the dryer is 0.15-0.3Mpa, the slurry is heated on the outer wall of the dryer, and the water is vaporized and discharged by the axial flow fan. The drying cylinder rotates once, and the material is completely dried, and the flaked material is discharged by the scraper on the outer wall of the drying cylinder, and falls to the discharge port for collection.

If you need to deal with a large amount of waste yeast, you can contact us, we will send you more product information and solutions.