Beer lees can be dried by mechanical equipment. Zhengzhou Dingli lees drying production line has been applied in many projects and exported to Vietnam, Ghana, Nigeria and other regions.

Zhengzhou Dingli lees complete equipment includes heat source equipment, lees dehydration equipment, electronic control equipment, lees dryer, dust removal equipment, conveyors, packaging equipment, etc. The process flow of Dingli lees dryer: the material enters the rotary drum from the feeding device The inner layer realizes co-current drying. The material moves to the other end of the inner layer and enters the middle layer for counter-current drying. The material is continuously raised in the middle layer in a two-step and one-step-back mode, and the material travels to the middle layer. One end falls into the outer layer. The material travels in a rectangular multi-loop way in the outer drum. The material that achieves the drying effect travels quickly out of the drum under the action of hot air. The wet material that does not achieve the drying effect cannot travel quickly because of its own weight. The rectangular copy board is sufficiently dried to complete the purpose of drying.

Brewer's grain is a by-product in the production of wine, with the characteristics of low price, large output, rich nutrients, and good fattening effects. The development of lees into unconventional feed can greatly alleviate the shortage of feed resources, reduce breeding costs, and improve economic efficiency. The complete equipment of Dingli Brewery Dryer Production Line has been put into use in many foreign beer companies and feed processing companies, and has created considerable economic benefits.