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Advantages of twin-screw extrusion extruder(1) The adaptability of raw materials is wider, and it can adapt to the processing of raw materials with high viscosity, low viscosity, high oil content, high moisture or viscosity, oily, very wet and other slippery materials in single screw (SSE).(2) There are fewer restrictions on the particle size of raw materials, which can be adapted to the processing of raw materials with a wide particle size or from fine powder to coarse powder particles and raw materials with particle sizes outside the specific range of single-screw processing.(3) The material

First of all, we take the production of aquatic feed as an example, according to the material and purpose of the expansion from the structure of the single screw extruder and twin screw extruder,In general:--- Single screw extruder: suitable for processing all kinds of raw materials and common livestock and poultry compound feed.--- Twin-screw expander: The final product requires good molding and beautiful appearance, uniform maturation and adjustable density of compound feeds (aquatic food and pet food) and high value-added raw materials (alpha starches and histones), etc.

The twin-screw extruder is a kind of multi-screw extruder. It is developed on the basis of the single-screw extruder. In the barrel of the twin-screw extruder, two screws are placed side by side. Therefore, it is called twin-screw extruder. According to the relative position of the screw, it can be divided into meshing type and non-meshing type. The meshing type can be divided into partial meshing type and full meshing type. According to the rotation direction of the screw, it can be divided into two types: co-rotating and counter-rotating.

The twin-screw feed extruder is mainly composed of a barrel and a rotating extrusion twin-screw in the barrel. When the equipment is running, the material enters the material cavity through the feeding port, and the screw rotates and squeezes forward to be transported. Under the action of thrust, friction, shear force and heat, a high pressure and high temperature difference is formed inside and outside the cavity. The moment the material is extruded, Instant expansion due to pressure difference.

Aquatic extruded feed processing technologyI. Processing technology of extruded fish feed1 Squeeze the puffed fish    Extrusion curing is accomplished by a combination of water, pressure, temperature and mechanical shear.

Decryption of Large Twin-Screw Extruder1.Principle and working processThe large twin-screw extruder is an important piece of equipment in the food processing industry and plays an indispensable role in the food production process. This article will reveal the principles, applications and advantages of large-scale twin-screw extruders, and let us explore this eye-catching industrial device together.2. ExtruderThe large twin-screw extruder uses advanced extrusion technology to process ingredients under high temperature and high pressure. It is mainly composed of two rotating screws.

Processing Technology of Puffed Instant Yam Powder01Mixing machine: Add nutritional additives and a certain proportion of water to the raw materials and mix them evenly.02Feeding machine: transports the mixed raw materials to the feeding hopper of the extruder.03Extruder: It is produced using the world's most advanced twin-screw extruder, which allows the starch granules to expand and refine during the puffing process of yam at high temperature, high pressure, and high shear force, and the starch molecular chains open, increasing the surface area of the food particles.

Daily Troubleshooting of Twin-screw ExtruderThe twin-screw feed extruder is mainly composed of a barrel and a rotating extrusion twin-screw in the barrel. When the equipment is running, the material enters the material cavity through the feeding port, and the screw is rotated and extruded to be transported forward. Under the action of thrust, friction, shear force and heat, a high-pressure and high-temperature difference is formed inside and outside the cavity.

Key points of puffed feed production technology  The application of twin-screw extruder in the production of extruded feed The key to the production process of extruded feed lies in the extrusion process, and the twin-screw extruder is an important equipment to complete this process. The screw sleeve and screw in the extruder can squeeze and shear the feed material, and extrude the die hole under high temperature and high pressure environment. When being extruded, due to the effect of internal and external pressure difference, it can realize rapid expansion. role.

The Difference Between Extruder Production of Sinking Feed And Floating Feed - Expansion CoefficientIn the aquatic feed industry, extruders are widely used. The reason is that the materials produced by extruders are diverse and their maturity is higher than that of pelletizers, which causes much less environmental pollution. Many manufacturers generally Only floating materials are produced. Things to note when using an extruder to produce submersible materials:1. Formula: When designing the formula, it should be noted that the starch content should be low but not absent.