Automatic freeze drying machine with high heat uniformity

Abstract

The invention discloses an automatic freeze drying machine with high heat uniformity. The automatic freeze drying machine comprises a machine shell. The machine shell comprises a freeze drying box anda cold trap box. The bottom of the freeze drying box and the top of the cold trap box are connected through bolts. Through holes are formed between the bottom of the freeze drying box and the top ofthe cold trap box. A lifting drive device is mounted at the inner top end of the freeze drying box. Mechanical clamping hands for clamping a freeze drying tray are correspondingly arranged at the twoends of the lifting drive device so that the input and output of freeze-drying materials from the freeze drying box can be realized. A freeze drying partition is horizontally placed, the two ends of the freeze drying partition are embedded and fixed on the inner wall of the freeze drying box, and the freeze drying tray is placed on the freeze drying partition. According to the automatic freeze drying machine with the high heat uniformity, through the structural design of the freeze drying partition and the freeze drying tray, the heat transfer effect of different positions of the whole freezedrying tray and the freeze drying partition is uniform, so that the freeze drying efficiency of freeze drying articles is improved, the freeze drying effect of the same batch of freeze-drying articlesis improved, and the comprehensive performance is excellent.

Description

technical field [0001] The invention relates to the technical field of freeze-drying equipment, in particular to an automatic freeze-dryer with high thermal uniformity. Background technique [0002] Freeze dryer is the equipment for freeze-drying medicine and food in the pharmaceutical industry and food industry. It first freezes the items (products) to be freeze-dried at low temperature, and then under vacuum conditions, through vacuum sublimation and analytical adsorption. The moisture content of the product is reduced to a level where the biological and chemical reactions cannot be maintained for a prolonged period of time. The tray is an essential tool for transshipment and holding the items to be freeze-dried, and putting the items to be freeze-dried on the shelf of the freeze dryer through the tray for freezing. Therefore, the heat transfer effect of the tray is also one of the main factors affecting the freeze-drying effect and freeze-drying efficiency of the items t...

AI Technical Summary

Problems solved by technology

[0003] The uniformity of the heat transfer rate of the trays and partitions of the existing freeze dryer is relatively poor, and it cannot guarantee that the items to be dried at different positions are freeze-dried at the same time, which affects the freeze-drying efficiency and freeze-drying quality

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