Sorbic acid is recommended by FAO and WHO international efficient and safe preservative widely used in food, beverages, tobacco, pesticides, cosmetics and other industries, as the unsaturated acid, it also used as resin, aromatics and rubber industry. Sorbic acid and potassium sorbate (hereinafter referred to as sorbic acid and potassium) is a good food preservative, 

        Amount used in Western countries is large, but in China is not a wide range of applications. As a recognized safe and efficient food preservative additives, sorbic acid and potassium salt used in the food industry in China will be more extensive. White or yellowish white crystalline powder; special smell. This product is soluble in ethanol, dissolved in ether, very slightly soluble in water. 

        Sorbic acid (potassium) can effectively inhibit molds, yeasts and aerobic bacteria activity, but also to prevent botulism, staphylococcus, salmonella and other harmful microbial growth and reproduction, but the anaerobic bacteria and Bacillus acidophilus Lactobacillus and other beneficial microorganisms almost ignored, and its role in suppressing the development of more than sterilization, so as to effectively extend the storage time of food, and keep the original flavor of food.

        SZG series double cone rotating vacuum drier has double cone rotating tank, the tank in a vacuum state, to the jacket into the steam or hot water heating, heat through the tank wall contact with the wet material. Wet material after evaporation of water vapor absorbs heat through vacuum exhaust pipe is pumped. Since the tank body in a vacuum state, and the rotating of tank so that the material constant up and down, inside and outside the flip, it accelerated the drying rate of materials, improve drying efficiency, to achieve uniform drying purposes.

1, oil heating, automatic temperature control, can be dried and biochemical products and mineral raw materials, the temperature can be between 20 ~ 160 ℃ temperature difference within ± 2 ℃.

2, engaged efficiency, improve oven than 2 times

3, indirect heating, the material will not be contaminated, in line with "GMP" requirements. Equipment maintenance is simple, easy to clean.