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Russian Application of Membrane Filter Press in Soybean Processing
The membrane filter press is a commonly used equipment for solid-liquid separation, and it can play a good role in processing materials such as soybeans. In soybean processing, it is necessary to separate the solid part (such as bean dregs) from the liquid part. The membrane filter press has significant advantages in soybean processing. The following is an introduction to the specific application and advantages of the membrane filter press in soybean processing.
Processing of Soybeans
Crushing and soaking: The soybeans are crushed, usually by grinding them into powder. Then, the powdered soybeans are mixed with an appropriate amount of water and soaked to dissolve the protein, oil, etc., in the soybeans into the water.
Filtration: The soaked soy milk is passed through a filtering device to remove impurities, solid particles, etc., in the soybeans. This process can be done using a screen or other form of filter.
Separation: The liquid mixture, after preliminary filtration, is further sent to a membrane filter press. The membrane filter press uses a series of diaphragms to separate the mixture into two parts: solid and liquid. The membrane will apply pressure to make the liquid part flow out through the diaphragm, while the solid part (soy dregs) is blocked inside by the diaphragm.
Filtering and washing: The membrane filter press will apply a certain amount of pressure during the separation process to promote the liquid part to flow out as much as possible. In addition, in some cases, the solid part may need to be washed to remove the residual liquid components.
Collecting products: The liquid part, after separation, is collected, and the solid part (okara) is collected, which may be used in some food processing or feed production.
Advantages of Membrane Filter Press in Processing Soybeans
- High filtration accuracy: The diaphragm filter press can perform precision filtration under high-pressure conditions, effectively intercept bean dregs, and ensure the purity of the filtrate. Through the selection and configuration of filter cloth, solid-liquid separation of different particle sizes can be achieved to meet different process requirements.
- Strong dehydration ability: The diaphragm filter press can further squeeze out the moisture in the filter cake in a short time through the secondary extrusion of the membrane plate, thereby improving the dryness of the bean dregs.
- The high degree of automation: The membrane filter press is equipped with an automated control system, which can realize automation of the entire process of feeding, filtering, pressing, and unloading, reducing manual intervention.
- Reduce wastewater discharge: The efficient solid-liquid separation capability reduces the content of suspended solids in wastewater, reducing the difficulty and cost of wastewater treatment.
- Improve the quality of bean dregs: Through efficient filtration and dehydration treatment, the bean dregs produced by the diaphragm filter press have high dryness and are easy to store and transport. The dried bean dregs can be further utilized as feed or other by-products, increasing the added value.
- Ensure the purity of the filtrate: The high-pressure filtration of the membrane filter press ensures that the impurity content in the filtrate is low, which is conducive to the subsequent processes (such as protein extraction) and improves the quality of the final product.
Conclusion
In general, the application of a membrane filter press in soybean processing has significantly improved the production efficiency and product quality of soybean oil and soybean protein and has broad application prospects. In practical applications, it is necessary to adjust the parameters according to the specific situation to ensure that the equipment can achieve better results. When processing soybeans, the working parameters of the membrane filter press need to be adjusted according to factors such as the moisture content and particle size of the soybeans.
