Stirring tank as the name implies is used to stir to accelerate the emulsification of the material being stirred, dissolution, mixing and other product production, that is, the material for mixing, blending, blending, homogenization, etc., especially for the substrate viscosity, solid content is relatively high in the preparation of materials emulsification. For example, one or more materials (water-soluble solid phase, liquid phase or colloidal substances, etc.) dissolved in another liquid phase, and make its hydration into a relatively stable emulsion. It is suitable for the emulsification and mixing of raw and auxiliary materials such as edible oils, powders and sugars. The mixing tank is suitable for the production of cosmetics, medicine, food, chemistry, dyeing, printing ink and other industrial products.