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What is the implementation principle of beer filtration? What are the types of filter materials?

2023.12.29 Shandong Zunhuang
Beer filtration implementation principle

Beer filtration is a physical process that uses filter media to separate and remove tiny particles suspended in beer from the wine liquid, making the beer clear and transparent without suspended solids.

When beer is filtered, the turbid beer becomes clear with the help of the filter medium to trap solids. The driving force for filtration is the pressure difference between the inlet and outlet of the filter. The pressure of beer moving through the filter media is constantly changing and changes as the porosity of the filter media changes.

The pressure at the inlet is always higher than the pressure at the outlet. The greater the pressure difference, the greater the resistance of the filter. This resistance prevents the filtration process, especially at the end of filtration, when the pressure difference rises quite quickly.

When beer is filtered, the filtration speed is directly proportional to the pressure difference and filter area, and inversely proportional to the fluid viscosity and filter media thickness.

Types of filter materials

1. Metal filter screen or textile: There are different types of metal screen, crack screen or special-shaped metal wire and metal or textile braid installed in parallel on the candle diatomaceous earth filter.

2. Filter plate: The filter plate can be made of fiber, cotton, diatomaceous earth, perlite, fiberglass and other materials. There are many types of filter plates to meet the needs of different filtration precisions, up to sterile filtration.

3. Membrane materials: Membrane filtration is increasingly used in applications. There are many materials for making membranes, such as polyurethane, polypropylene, polyamide, polyethylene, polycarbonate, acetate and other materials.

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