The freeze-drying equipment is convenient for controlling the heating temperature and vacuum degree of the divergent phase when the material is dried. In traditional Chinese medicine, it is only limited to the freeze-dried ginseng, antler, yam, Cordyceps sinensis and other small amounts of Chinese herbal medicines. A large number of Chinese patent medicines have not yet used freeze-drying technology, which is a big gap with foreign countries.
At present, most domestic food lyophilizer manufacturers take the imitation road. Some manufacturers have made major improvements while adopting advanced foreign technologies. So how do freeze-dried devices improve?
1. Reduce costs and reduce energy consumption: Some lyophilizers in foreign countries do not use stainless steel, but use low-carbon steel to coat foods to dry the resin and emit infrared light at room temperature. The surface of the shelf is coated with high-performance far-infrared emitting materials to enhance its radiation capability; the surface of the tray is treated to enhance its absorption capacity. The optimization of structure, size and frosting characteristics of the water trap is more practical because the current cost is equivalent to the cost of the freeze-dried box and the power consumption is large. For a lyophilizer, the heating system only supplements the heat of sublimation. The power consumption should not be too high, but the existing equipment is not satisfactory. The structure should be optimized and the energy consumption should be reduced.
2. Development of continuous freeze-drying equipment: Most of the currently produced freeze-dried dryers are batch-type products. With the development of a large number of industrial technologies, it is an inevitable trend to develop continuous freeze-drying equipment and increase the output of freeze-dried products.
3, to ensure quality and improve performance in practical applications: some manufacturers of lyophilizers can not be put into normal production after installation; some lyophilizers can produce, but high energy consumption. Some components continue to fail and affect normal production. Therefore, the quality of the freeze dryer must be guaranteed. Increasing performance means that new features of the equipment are enhanced in addition to heating rate, pumping rate, temperature uniformity, and vacuum stability.
In recent years, freeze-dried drying equipment has developed rapidly in China. With the increasing market demand for freeze-dried equipment and the continuous improvement of the quality requirements of pharmaceuticals, freeze-dried equipment will have considerable development.
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