Starch dehydration horizontal screw centrifuge

The starch dehydration horizontal screw centrifuge is a mechanical device specially designed for efficient dehydration and separation of starch particles from starch slurry. Its working principle is mainly based on the action of centrifugal force. This equipment is widely used in the starch processing industry, especially in the production of various types of starch such as corn starch, potato starch, and cassava starch. It is used to replace the traditional precipitation method or filter press method to improve the starch extraction efficiency and product quality. The following are the main features and working process of the starch dehydration horizontal screw centrifuge: Features of the starch dehydration horizontal screw centrifuge: 1. Horizontal structure: The main body of the equipment is arranged horizontally, which is convenient for continuous feeding and discharging of materials, realizing continuous operation and improving production efficiency. 2. Spiral pusher: The internal spiral blades are coaxially rotated, and the axial push force is generated on the material through differential rotation, so that the material moves from the feed end to the discharge end along the spiral channel. 3. High-speed centrifugal separation: There is a certain speed difference between the drum and the spiral blades, so that the material can be separated from the solid and liquid under the action of centrifugal force. The heavy solid starch particles are thrown to the inner wall of the drum to form a solid phase layer, while the lighter liquid (containing unseparated starch, protein, sugar, etc.) gathers outside the solid phase layer to form a liquid phase layer. 4. Dynamic adjustment: The equipment is usually equipped with an automatic control system that can monitor and adjust the speed difference, differential ratio, torque and other operating parameters between the drum and the spiral in real time to adapt to starch slurries of different properties and ensure the best separation effect. 5. Wear-resistant design: The part in contact with the material is made of wear-resistant materials to cope with hard impurities such as sand and gravel that may exist in the starch slurry and extend the service life of the equipment. Working process of starch dehydration horizontal screw centrifuge: 1. Feeding: The starch slurry to be treated is continuously and evenly fed into the drum of the horizontal screw centrifuge through the feed pipe. 2. Centrifugal separation: In the high-speed rotating drum, the starch slurry is subjected to a strong centrifugal force, and the starch particles are quickly deposited on the inner wall of the drum to form a solid phase layer, while the liquid flows to the center to form a liquid phase layer. 3. Screw push: The coaxially rotating spiral blades rotate at a speed slightly lower than that of the drum, and the deposited starch particles are continuously pushed along the spiral channel to the cone section and discharge port of the drum through the differential action. 4. Solid-liquid discharge: Starch particles with higher dryness are discharged from the discharge port and enter the subsequent drying or packaging process; the separated liquid (usually called "yellow slurry") is discharged through the overflow hole on the drum, which can be further recycled or discharged. 5. Cleaning and maintenance: After running for a period of time, the centrifuge needs to be stopped for internal cleaning to prevent starch accumulation from causing a decrease in separation efficiency, and to perform necessary maintenance work. The advantages of using a starch dehydration horizontal screw centrifuge are: - Efficient dehydration: Rapid separation through centrifugal force greatly shortens the starch dehydration time and improves production efficiency. - Continuous operation: The equipment can achieve continuous feeding and continuous discharging, which meets the needs of industrial large-scale production. - Good separation effect: It can effectively separate starch particles and liquid, and the obtained starch has high dryness and good purity, and there is less starch loss in the separated liquid. - High degree of automation: equipped with an automatic control system, it can automatically adjust the operating parameters according to the characteristics of the slurry to ensure stable separation performance. In general, the starch dehydration horizontal screw centrifuge is an indispensable key equipment in the modern starch industry, and is of great significance for improving the starch production process technology level, product quality and production efficiency.