Energy-saving freeze dryer

Abstract

The invention discloses an energy-saving freeze dryer. The energy-saving freeze dryer comprises a freezing cavity type pipe, wherein a vacuum pump, a condensing unit and a condensing net are arranged in the freezing cavity type pipe; a control room is arranged at one side of the freezing cavity type pipe; a conveying pipe is arranged on the control room; the conveying pipe is communicated with the freezing cavity type pipe; conveying plates are fixedly connected to the opposite side walls of the conveying pipe; each conveying plate is connected to a center shaft through a conveying component; each center shaft is provided with an autorotation component; the center shafts are connected to an outer ring body through connecting components; a plurality of containing nets are evenly arranged on the outer ring body; the side wall of the control room is rotationally connected to a sealing door; and the sealing door is connected to the control room through a sealing component. Through the arrangement of the conveying pipe, raw materials are conveyed to the freezing cavity type pipe through the conveying plates, and the freezing cavity type pipe generating cold air is located at the bottommost part, so that when the sealing door is opened, cold air loss is small, the energy waste is avoided, the energy-saving effect is achieved, and the freezing effect of the raw materials is not affected.

Description

technical field [0001] The invention relates to the technical field of freeze dryers, in particular to an energy-saving freeze dryer. Background technique [0002] There are various drying methods, such as sun-drying, boil-drying, drying, spray-drying and vacuum-drying, etc., but common drying methods are usually carried out at temperatures above 0°C or higher. The products obtained by drying generally have the problems of shrinking in size and hardening of texture, most of the volatile components will be lost, some heat-sensitive substances will be denatured and inactivated, and some substances will even be oxidized; therefore, dried products and Compared with before drying, there is a big difference in properties; the freeze-drying method is basically carried out below 0°C, that is, in the frozen state of the product, and only when the residual moisture content of the product is reduced in the later stage, the product is allowed to rise. to a temperature above 0°C, but ge...

AI Technical Summary

Problems solved by technology

[0003] In the process of perilla processing, in order to ensure the efficiency, the perilla raw materials are often taken out from the freeze dryer, and the materials that need to be freeze-dried are placed at the same time, but the distance between the entrance of the freeze dryer and the freezing equipment Closer, so that a large amount of cold air will escape when the airtight door is opened, causing the overall temperature of the equipment to become lower, resulting in energy loss, and the existing materials do not move in the freeze dryer, and in the vacuum state, contact with low temperature The surface is on the surface of the material, which makes the freezing time longer and affects the freezing efficiency. For this reason, an energy-saving freeze dryer is proposed.

Images