English 
French 
Spanish 
Turkish 
Russian Application of Membrane Filter Press in Duck Blood Processing
Duck blood is a protein-rich feed raw material. Dehydration and impurity removal during its processing are crucial to improving product quality. Duck blood is coagulated into blocks and then boiled at high temperature; the juice is removed, and the blood is dried and crushed to form duck blood powder. Due to its high bacterial content, raw domestic blood powder materials cannot be directly used for feed processing and mixing without sterilization. As a highly efficient dehydration equipment, the membrane filter press shows superior performance in the duck blood processing process and can meet the market demand for high-standard feed raw materials. Next, the application of the membrane filter press in duck blood processing will be introduced.
Reasons for Using Filter Press to Filter Duck Blood
Duck blood has a water content of up to 90%, which makes it easy for bacteria and other microorganisms to grow during processing. Therefore, effective dehydration and filtration can not only reduce the bacterial content but also improve the safety and shelf life of the product. In addition, after removing excess water, the subsequent processing of duck blood, such as crushing and drying, will be more efficient, reducing energy consumption and time costs.
Specific Application Process of Diaphragm Filter Press
- Feeding: After pretreatment (such as cooking), duck blood will contain high moisture and some impurities. First, the pretreated duck blood raw material is transported to the filter chamber of the diaphragm filter press by the feed pump. The filter chamber is equipped with a filter cloth as a filter medium to capture solid particles (blood clots) and allow liquid to pass through.
- Preliminary filtration: The duck blood gradually fills the filter chamber and begins to enter the preliminary dehydration stage. With the pressure of the feed pump, the liquid (filtrate) in the duck blood is squeezed through the filter cloth, while the solids, such as blood clots, remain in the filter cloth to form a preliminary filter cake.
- Secondary compressing: After the initial dehydration is completed, the secondary pressing begins. The core part of the membrane filter press is the membrane filter plate. Air or clean water is injected into the membrane filter plate through an air compressor or a screw pump. The injected gas or liquid pushes the diaphragm to expand, thereby further squeezing the filter cake. This stage can further squeeze out the water inside the blood cake, thereby significantly reducing the water content of the duck blood clot.
Advantages of Using Membrane Filter Press
Higher dehydration efficiency: The diaphragm filter press has a secondary pressing function. The secondary squeezing of the duck blood filter cake through the expansion of the diaphragm can remove moisture at a deeper level and significantly reduce the water content of the duck blood.
Shorter processing time: The secondary pressing process of the diaphragm filter press speeds up the dehydration speed, allowing the duck blood to meet the drying requirements in a shorter time, improving the overall production efficiency.
Drier filter cake: The duck blood filter cake treated by the diaphragm filter press has a lower water content, which is convenient for subsequent drying or drying steps, while the filter cake treated by the ordinary filter press may have a higher water content and requires longer subsequent processing.
Save energy and cost: Since the diaphragm filter press can dehydrate more efficiently, less energy is required for the subsequent drying process, thereby reducing the overall production cost.
Conclusion
In short, the application of membrane filter press in duck blood processing not only improves production efficiency but also ensures product quality and safety. By simplifying the processing process and saving costs, this equipment provides an ideal solution for the feed processing industry. With the increasing market demand for high-quality animal-derived feed, the membrane filter press will become an important equipment for duck blood processing, helping enterprises achieve higher economic benefits.
