The double screw extruder adopts the coordinated operation of twin-screw and has strong material grasping ability. Whether it is loose powder, small particles, or viscous paste, they can be efficiently sucked into the barrel. Two screws work closely together, rotating and revolving synchronously, continuously flipping the materials, allowing various added raw materials such as grains, proteins, seasonings, etc. to be fully mixed in a short period of time, ensuring the uniformity of subsequent processing and laying the foundation for precise puffing. For example, when making nutritious breakfast cereal puffed foods, various grains, vitamins, minerals, and other ingredients can be quickly mixed together.
The following is an introduction to the advantages of double screw extrusion puffing machines:
1. Strong material adaptability: Its unique twin-screw structure has powerful material grasping and conveying capabilities. Whether it is loose dry powder, such as flour, milk powder, etc., it is used to make various baked and puffed snacks; Grains with distinct grains, such as corn and rice, are processed into common puffed cereal foods; Alternatively, viscous paste like materials such as jam with high pectin content can be smoothly fed into pectin puffed candies, effectively avoiding the problem of strict material shape requirements for single screw extruders.
2. High mixing uniformity: The two screws work closely together, not only rotating but also revolving synchronously, allowing for quick and thorough flipping of the material in the feeding mixing section. When producing composite puffed foods rich in multiple nutrients, it can ensure the uniform distribution of various raw materials, resulting in a balanced nutrition and consistent taste of the product, without excessive or insufficient local ingredients.
3. Good puffing effect: In the melting puffing section, the heating of the barrel combined with the intense shear force generated by the high-speed rotation of the twin-screw quickly heats up and melts the material, while vaporizing the moisture in the material and evenly distributing it inside, forming a fine air chamber. The taste is more crispy, greatly improving the quality of puffed food.
4. Accurate product molding: From the molding extrusion section, with the strong push of the twin-screw, the material can stably pass through the die head. Rich and diverse mold shapes, such as circular, square, wavy, etc., can accurately shape various characteristic puffed snack shapes, such as spherical popcorn, bar shaped rice fruit, wavy shrimp strips, etc., to meet the diverse needs of the market and ensure high consistency in shape and size of each batch of products.
5. Stable production efficiency: The twin-screw extruder runs smoothly as a whole, and each link is closely coordinated. From material inhalation, mixing, puffing to molding and extrusion, it is a seamless process with few malfunctions such as lagging or blockage. It can operate continuously for a long time, providing reliable guarantee for large-scale industrial production of puffed food and effectively improving production efficiency.
