Decanter centrifuge in the sugar industry
Decanter centrifuge, also known as horizontal spiral sedimentation centrifuge, is a fully automatic and efficient centrifugal separation equipment that plays a vital role in the sugar industry. The following is a detailed analysis of the decanter centrifuge in the sugar industry:
Working principle of horizontal screw centrifuge
The working principle of horizontal screw centrifuge is based on the action of centrifugal force. When the machine is running, the drum and the screw rotate at high speed in the same direction with a certain differential speed. The material is continuously introduced into the inner cylinder of the feeding screw from the feed pipe. Under the action of the centrifugal field, the heavier solid phase is deposited on the drum wall to form a sediment layer, which is then continuously pushed to the cone end of the drum by the feeding screw and discharged from the machine through the slag discharge port. The lighter liquid phase forms an inner liquid ring, which continuously overflows from the overflow port at the large end of the drum and is finally discharged from the machine through the liquid discharge port.
Application of Decanter Centrifuge in Sugar Industry
In sugar industry, decanter centrifuge is mainly used to separate and purify solid and liquid components in sugar solution. Specifically, it can be used in the following process flows:
1. Protein separation after liquefaction:
After starch milk is treated with liquefaction enzyme, protein in liquefied liquid is separated by decanter centrifuge. This step helps to remove impurities and improve the efficiency of subsequent saccharification.
2. Protein separation after saccharification:
During saccharification, protein and other impurities in sugar solution will further precipitate. Decanter centrifuge can efficiently separate these impurities to obtain purer sugar solution.
Advantages of Decanter Centrifuge
Compared with other separation equipment, decanter centrifuge has the following significant advantages in the sugar industry:
1. Efficient separation:
Decanter centrifuge can continuously and efficiently separate solid and liquid components, greatly improving production efficiency.
2. No filter aid required:
During the separation process, decanter centrifuge does not need to add any filter aid, thus avoiding sugar solution contamination caused by adding impurities.
3. Strong adaptability:
Decanter centrifuge can handle sugar solutions of different concentrations and viscosities, and has strong adaptability.
4. High degree of automation:
Modern decanter centrifuges are usually equipped with advanced control systems, which can realize automatic operation and reduce the difficulty and risk of manual operation.
Considerations for selecting a decanter centrifuge
When selecting a decanter centrifuge for the sugar industry, the following factors need to be considered:
1. Material properties: Understand the concentration, viscosity, specific gravity and other properties of the sugar solution in order to select a suitable model.
2. Processing capacity: According to the requirements of production scale and production efficiency, select a decanter centrifuge with sufficient processing capacity.
3. Separation effect: Evaluate the separation effect of the decanter centrifuge to ensure that it can meet production requirements.
4. Maintenance and care: Understand the maintenance and care requirements of the decanter centrifuge to ensure that the equipment can operate stably for a long time.
Decanter centrifuges have broad application prospects and significant advantages in the sugar industry. By rationally selecting and using decanter centrifuges, the production efficiency and product quality of the sugar industry can be greatly improved. At the same time, with the continuous advancement of technology and the continuous upgrading of equipment, the application of decanter centrifuges in the sugar industry will become more extensive and in-depth.