Drying is a crucial process in food preservation, significantly extending shelf life and maintaining quality. The efficiency of drying equipment directly impacts the nutritional value and marketability of dried products. In recent years, China has made remarkable progress in developing advanced, multi-functional, energy-efficient, and adaptable drying technologies tailored for various industries.
Zhejiang Huafeng Refrigeration Equipment Factory offers a series of steam-based vegetable dryers designed specifically for exporting dehydrated vegetables. These machines use high-temperature steam to generate hot air above 120°C, making them ideal for drying cabbage, spinach, garlic, onions, green bean sprouts, pumpkin slices, radish slices, and potato chips. The system allows precise temperature control, features an energy-efficient low-noise fan, and includes automatic condensate drainage. The stainless steel material tank ensures compliance with strict food hygiene standards.
Changzhou No. 2 Drying Equipment Factory introduced the third-generation DWT series, which is suitable for large-scale continuous drying of root vegetables, leafy greens, and other materials like garlic slices, pumpkins, carrots, and yams. This equipment has been widely adopted by numerous companies across Zhejiang, Shandong, and Fujian.
The Heilongjiang Academy of Agricultural Machinery developed a hot-air dehydration system that can handle a wide range of vegetables, wild plants, fungi, and even tea. Materials are transported via conveyor belts into the dryer, where moisture is reduced by up to 80% in the high-temperature zone, and further lowered to 3–5% in the low-temperature zone, ensuring optimal dehydration.
Changzhou Yangtze River Drying Equipment Co., Ltd. developed a superheated solvent steam fluidized bed dryer, featuring closed-loop technology that integrates drying and solvent recovery. This system is particularly effective for alcohol-soluble materials and has proven beneficial in food, pharmaceuticals, and chemical industries due to its high efficiency and environmental benefits.
Nanjing Yatai Institute of Microwave Energy created microwave vacuum freeze-drying equipment suitable for vegetables, royal jelly, and ginseng. It offers fast, even heating, preserves nutrients, and maintains product quality. Shenyang Aerospace Xinyang's LG-125 vacuum freeze-drier uses sublimation under vacuum conditions, preserving color, flavor, and texture, making it ideal for international markets.
Changzhou Huayuan Drying Equipment Co., Ltd. introduced the CT series drum dryer, which uses internal conduction heating and achieves up to 90% thermal efficiency. It is ideal for drying liquids, pastes, and viscous materials such as meat, dairy, and yeast.
Jiangsu One-Step Drying Equipment Co., Ltd. developed the HG roller scraper dryer, which efficiently dries liquid or slurry materials on a heated surface. The DWT closed-loop belt dryer, based on American technology, is energy-efficient and suitable for various materials, including granular and paste-like substances.
The HLG high-speed mixing granulator dryer combines granulation and drying in one unit, reducing binder usage and improving production speed. The DLB60 multi-functional coating dryer is used for coating and drying particles, powders, and tablets, offering high-quality results and ease of operation.
Sichuan Agricultural Machinery Research and Design Institute developed a mobile grain dryer that uses straw gas as a heat source, lowering costs and preventing mold and germination in grain storage. Nanjing Institute of Agricultural Mechanization introduced a microwave tea drying machine, enhancing tea quality by preserving natural flavors and increasing functional components like polyphenols and vitamins.
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