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338 Qinggao Road, Qinggang Industrial Park, Fengxian District, Shanghai
Shanghai Minjie Pharmaceutical Machinery Co., Ltd
338 Qinggao Road, Qinggang Industrial Park, Fengxian District, Shanghai
Red yeast vacuum dryerThe core relies on vacuum low-temperature drying technology and continuous operation design, and its working principle is as follows:
Continuous feeding and fabric: Wet red yeast material is stably pushed into the drying machine through a dedicated feeding unit, and evenly distributed on the drying belt or spiral conveyor structure through a uniform fabric device to ensure uniform heating of the material.
Vacuum environment construction: After the equipment is started, a stable vacuum chamber is quickly established to reduce the internal air pressure and significantly lower the boiling point of water in the red yeast material, achieving rapid evaporation at low temperatures and avoiding damage to yeast activity caused by high temperatures.
Precise temperature control heating: Through multiple heating methods such as jacket heating and spiral plate thermal conductivity, the heat source (steam, hot water, or thermal oil) is evenly transmitted to the surface of the material. The heating temperature can be precisely controlled within the range of 30-300 ℃, and optimized to the drying range of 40-80 ℃ based on the characteristics of red yeast.
Water evaporation and separation: In a vacuum state, the water in red yeast rapidly vaporizes to form secondary steam, which is condensed into liquid water through a dedicated condensation recovery system and discharged, achieving efficient separation of water and materials.
Continuous discharge and finished product collection: The dried red yeast finished product is automatically output by the continuous discharge unit, with no material retention throughout the process. The moisture content of the finished product can be stably controlled within the target range and can be directly connected to subsequent packaging processes to avoid secondary pollution.
High activity retention rate: The vacuum low-temperature environment (adjustable from 40-80 ℃) fundamentally solves the thermal sensitivity problem of red yeast, effectively avoiding yeast cell inactivation and nutrient decomposition. The activity retention rate of the finished product is increased by more than 30% compared to traditional drying equipment, ensuring the core efficacy of the product.
Drying efficiencyexcellentAdopting a continuous operation design, the material drying cycle only takes 20-120 minutes, which significantly improves the efficiency compared to traditional equipment such as vacuum ovens (10-20 hours) and freeze-drying. The hourly water evaporation capacity of a single device can reach 50-2400kg, meeting the needs of large-scale production.
Excellent quality of finished products: During the drying process, the materials are not squeezed or clumped, and the finished products are in a uniform fine powder state with good fluidity. The equipment is equipped with an online automatic cleaning system, and the parts in contact with the materials are made of 304/316L stainless steel, which meets GMP standards, eliminates cross contamination, and has high product purity.
Operating cost economy: The operating cost of the equipment is only 1/3 of that of a vacuum oven and 1/6 of that of freeze-drying, with an equivalent cost of about 300 yuan per ton of water evaporated. At the same time, the entire process has a high degree of automation, requiring only 1-2 operators, significantly reducing labor costs; The solvent recovery system can achieve the recovery and reuse of organic components, further reducing production costs.
Convenient operation and maintenance: Adopting a PLC fully automatic control system, it can accurately regulate parameters such as temperature, vacuum degree, and feeding speed. After one click start, there is no need for manual intervention throughout the process, with strong stability and low failure rate. The equipment has fewer vulnerable parts, reasonable structural design, long maintenance cycle, and convenient operation and maintenance.
Safe, environmentally friendly, and reliable: The equipment has passed ISO environmental management system, occupational health and safety management system certification, and CE certification. The entire system is designed to be sealed, with no dust flying or exhaust emissions. It achieves organized recycling of gas, liquid, and solid phases, ensuring operational safety and meeting environmental requirements.