Dingli’s complete drying system for brewer's yeast by-products has been successfully deployed at numerous large and medium-sized breweries. It effectively overcomes the drying challenges associated with waste yeast slurry—specifically its high moisture content, high viscosity, tendency to clump, and the risk of yeast cell inactivation.
The wet yeast slurry generated during brewing typically has a moisture content of 70%–85% and a viscous consistency. Standard drying equipment often struggles with issues such as material sticking to the walls, scorching, and uneven drying, while high temperatures can destroy the yeast's nutritional activity. Dingli’s brewer's yeast dryer is custom-engineered for these material characteristics, offering options for either rotary drum or drum-scraper configurations. It utilizes a low-temperature, constant-temperature drying process with precise internal temperature control; this ensures efficient dehydration while maximizing the retention of yeast protein and biological activity. The final dried product maintains a stable moisture content of 8%–12% and serves as a high-quality feed ingredient.
The system features a fully enclosed drying structure, with material-contact surfaces available in 304 stainless steel to meet feed-grade hygiene standards. Equipped with an intelligent PLC control system, it supports continuous, automated 24-hour operation, integrating feeding, drying, discharging, and exhaust dust removal into a streamlined process that minimizes labor requirements. Additionally, the system incorporates a waste heat recovery unit that ensures high thermal efficiency, reducing energy consumption by approximately 30% compared to conventional dryers and effectively lowering operational costs.
