Direct Extrusion Technology

Materials with a certain moisture content and starch content are pushed by the screw in the sleeve of the extruder and reversely blocked by the discharge die (or throttling device in the sleeve), as well as by external pressure. Heating, or the heating effect of the frictional heat between the material and the screw, the material and the material, and the material and the inside of the sleeve, makes the material in a state of high pressure as high as 3-8MPa and a high temperature of about 200°C. Such a high pressure exceeds the saturated vapor pressure at the extrusion temperature, so the moisture in the material in the extruder sleeve will not boil and evaporate. At such a high temperature, the material is in a molten state. Once the material is extruded through the die mouth, the pressure suddenly drops, the water evaporates rapidly, and the product expands accordingly. The loss of moisture takes away a lot of heat, causing the temperature of the material to drop to 80 in an instant. C, so that the product is solidified and shaped, and a direct extrusion puffed product is obtained.
The process flow of direct extrusion technology is mainly as follows:
Feeding-(extrusion) puffing-cutting-drying-packaging-finished product

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.