Tank internal and external wall are made of international quality standards of sanitary 304 stainless steel,the Polyurethane insulation thickness between the inner and outer is 100-200mm.conic bottom install inlet and outlet pipes,valves,temperature transducer,etc,with the help of PLC auto-control, the equipment can reach to automatic and semi-automatic control. The height of conic bottom is a quarter of the total height.the ratio of tank diameter and height of tank is 1：2～1：4,the cone angle usually between 60°～90°.