A device of pulse-spouted microwave-Freeze Drying for granulated prepared foods and its high-efficient uniform processing method

摘要

a kind of granular pulse used for microwave cooking food spray freeze drying equipment and homogenization efficiency Processing method belongs to the dehydration and drying process unit of the agricultural field. The present invention is a material input valves, valve block board, microwave heating body cavity, a microwave source, water load, and dried in a vacuum pipes, gas-minute abandonment, gas flow rate regulator, gas-solid separator, materials ejectors, steam condensers, coolers, vacuum reservoir , and a vacuum pump and a control panel. Vacuum drying is a drying pipe and a flow passage of the material. Microwave source is uniformly distributed in the microwave cavity all around the heating, vacuum drying pipe is provided in the microwave heating cavity. The gas-solids separator is connected to the outlet pipe in the microwave heating and vacuum drying body cavity, is connected to the steam condenser through the pipe. Gas separator is provided at the lower vacuum drying pipe, is connected to the gas flow rate control through the pipe, the gas flow rate is controlled through a control panel. The apparatus comprises a microwave injection conditions of the freeze-dried material, to achieve a rotation can achieve the goal of uniformly drying the material at a high efficiency, the freeze-drying period can be shortened by almost 50% can reduce the cost of large-scale production . ;