Vacuum freeze drier
Vacuum freeze drier, removing moisture in the food in vacuum situation to dry it. In the state of high vacuum, freeze driver lets the water of pre-freezing material turned into water vapor and removed directly under ice state without melting. During this process, vacuum drier can keep the nutrients in the food, especially for the volatile heat sensitive ingredients.
Drying oven, vapor condenser, cooling system, vacuum system, heating system, control system
A closed container integrated vacuum with drying function.
Vapor Condenser :
a sealing device for water vapor condensation and sublimation, usually located in the rear of drying oven and a large oven can be adsorption surface area inside. The vapor distilling from drying oven can be adsorbed in the metal surface, whose temperature will down to -45°C~ -65°C.While the condenser is a cylinder made of stainless steel or iron with inner condensing tube, which connects with the refrigerating units respectively and forms refrigeration cycle system.
Heating System :
The function of freeze drier heating system is to heat the material in drying oven, reaching constant sublimation so as to achieve the specified requirement for moisture content.
It is composed by multi-stage vacuum pump or water ring pump and Roots vacuum pump. For the roots pump is booster pump that can not be used alone, the vacuum pump or water ring pump must be firstly enabled.
Freeze drier cooling system is composed by refrigeration compressors.
Chinese herbal medicine, creature, wild vegetable, dehydrated vegetable, food, fruit, chemical engineering, pharmaceutical intermediate, etc.
是凝结结升水气的密闭装置，通常位于干燥仓后部，内部有一个较大面积的金属吸附面，从干燥仓物料中升华出来的水蒸气可凝结吸附在其表面上，吸附面的工作温度可达到-45°C 〜 -65°C，冷凝器外形是不锈钢或铁制成的圆筒，内部盘有冷凝管，分别与制冷机组相连，组成制冷循环系统。