Single screw extruder is a mechanical equipment used for producing snacks. The working principle of this device is to transport materials through the rotation of the screw, causing the materials to move inside the barrel. Then, through the heating device outside the barrel and the shear force generated by the rotation of the screw, the material gradually transitions from a solid state to a viscous flow state. The melted material is pushed by the screw and extruded through the die of the machine head to form snack products with specific shapes and sizes.
Advantages of single screw extruder:
1. Simple structure: Compared to other types of extruders such as twin-screw extruders, single screw extruders have a simpler structure, fewer components, lower manufacturing and maintenance costs, and relatively easy operation.
2. Affordable price: Due to its simple structure and low manufacturing cost, the equipment is relatively inexpensive, making it an economical choice for some small and medium-sized food enterprises or entrepreneurs.
3. Wide applicability: It can process various materials such as grains, starch, protein, etc., and can produce various types of snack products, such as puffed foods, squeezed snacks, tissue protein foods, etc.
4. High production efficiency: capable of continuous and stable production. In large-scale production, raw materials can be quickly processed into finished snacks, improving production efficiency.
Application scenarios of single screw extruder:
1. Puffed food production: Puffed snacks such as potato chips and shrimp strips are made by puffing grains and other raw materials through a single screw extruder and then deep frying them, resulting in a crispy texture.
2. Squeeze snack manufacturing: for example, extrude corn flour, Rice noodles and other raw materials into snacks of various shapes, such as spiral, tube, etc. Different seasonings and additives can be added to increase the taste and flavor.
3. Tissue protein food processing: Using soy protein and other raw materials, processed by a single screw extruder, tissue protein food with a meat like taste and texture is produced, which can be used to make vegetarian meat products.
