The principle and classification of extruder

An extruder is a device that uses high temperature and high pressure to expand, deform and sterilize substances. It is mainly composed of puffing pressure chamber, screw, electric control system and other parts. According to different fields of use, extruders can be divided into food extruders, chemical extruders, pharmaceutical extruders and feed extruders.

Application of puffing machine in food processing

  puffed food

The most common puffed foods are rice crackers, popcorn, cheese balls, etc. In the puffing machine, through high temperature and high pressure, the processing raw materials such as corn and rice are expanded into a porous structure, so as to achieve the effect of crispness and good taste.

  Puffed soy products

Puffed soy products refer to foods formed by processing soybeans and other beans, such as textured soybean protein, vegetable silk protein, vegetarian meat protein, etc. The bean raw material can be matured and expanded by the puffing machine, making the food taste delicious, soft and delicious.

  feed application

The extruder can also be used for various aquatic feeds such as floating, sinking, caching fish feed, crayfish feed, abalone and sea cucumber feed, ornamental fish feed, etc.

Advantages of extruder in food

1. Improving the quality of the product can process a variety of raw materials: the twin-screw extruder can process a variety of raw materials at the same time, such as feed, food, chemical, pharmaceutical and other raw materials in different fields, with high applicability and flexibility .

  2. Stable and reliable product quality: In the twin-screw extruder, the material is fully matured, so that the internal temperature is evenly distributed, and the water evaporates evenly. These are conducive to ensuring stable and reliable product quality, with better taste and taste.

  3. High production efficiency: The screw rotation speed in the twin-screw extruder is very fast, and the materials are fully mixed and matured in it, which greatly improves the production efficiency and makes the production process more efficient.

  4. The structure of the machine is compact: the twin-screw extruder has a compact structure, a small footprint, and is convenient for installation and maintenance. In addition, the new twin-screw extruder adopts technologies such as steady-state screw structure and zero-gap twin-screw mechanism to effectively control the shear force and ensure that the aging time of all materials in the puffing chamber is consistent with the particle expansion coefficient, thereby further improving product quality. and production efficiency.

Advantages of extruder in feed

Increase the nutritional content of the feed: The twin-screw extruder can use high temperature and high pressure to decompose the starch molecules, making it easier for animals to absorb, and can also eliminate anti-nutritional factors, improving the quality and taste of the feed.

  1. Enhance the digestibility of feed: The feed particles processed by the twin-screw extruder are in the shape of low-density porous flowers, which are easy to be digested and absorbed by animals.

  2. Improve the stability of the feed: The aseptic treatment of the feed can be realized by using the twin-screw extruder, thereby reducing the chance of deterioration of the feed and maintaining the stability and consistency of the feed ingredients.

  3. Increase the output of feed: Compared with other processing equipment, the twin-screw extruder has a faster processing speed, which improves the output and benefit of feed.

  4. Convenient operation and maintenance: the twin-screw extruder is compact in structure, easy to operate, easy to clean and maintain, and greatly reduces the cost of manpower and material resources in the production process.