The function of the food extruder

The extruder has the functions of compression, mixing, kneading, melting, puffing and molding. The cavity of the extruder can be divided into 3-5 zones. Each zone can be heated by steam or electricity, or by extrusion friction, so as to achieve the purpose of cooking the material. Under the action of high temperature and high pressure in the cavity, the starch Gelatinization, protein denaturation. When the material passes through each zone of the extruder cavity, soluble flavor substances and pigments can be injected into the material through the cavity under high pressure. At the end of the extrusion cavity, the molten material is extruded through the die hole of the template under the action of high pressure. Due to the sudden drop in pressure, the water vapor expands and dissipates rapidly, making the product form a porous structure, and then the expanded material is extruded The rotary knife cuts the product to a certain size. Single-screw extruders and twin-screw extruders are most commonly used in the production of breakfast cereals, and twin-screw extruders have more advantages than single-screw extruders because single-screw extruders have a greater impact on material particle size. , Moisture requirements, component requirements are strict, and it is easy to cause problems such as material backflow and easy wear of the screw.

Jinan DAYI Machinery Technology Co., Ltd. is located in the beautiful city of Jinan. The company has been engaged in the research and development of food production line machinery and production technology for a long time, the company's standard production technology, the operation concept of automatic control, and the focus on the development of stable and reliable production equipment. The company's designers have long-term experience in design, development, debugging and production, and have responsible on-site engineering personnel engaged in production and debugging work, and can provide you with standardized design, production, and debugging processes.