filter pressing的意思|示意

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Filter pressing is a unit operation based on the principle of pressure filtration. It is commonly used to separate solid and liquid components in a mixture. The filter press consists of a series of vertical or horizontal recessed plates made of materials such as aluminum, stainless steel, polypropylene, etc. The filter plates are connected to frames that form the filter press.

To operate the filter press, it must first be filled with a liquid-solid mixture. The mixtures components are separated by passing the liquid portion of the mixture through the filter plates. As the liquid passes through the filter plates, the solid particles are trapped in the spaces between them. The liquid then exits through an outlet at the end of the filter press.

During the filtration process, the filter press accumulates a layer of solid material on its plates. This material can be either discharged in a semi-solid form, known as filter cake, or it can be washed out by water or other cleaning agents.

Filter pressing is widely used in many industries, such as the food industry, chemical industry and pharmaceutical industry, due to its high efficiency and economic viability. In addition, the filter press can be adapted to many different types of solid-liquid separation processes, making it an ideal choice for a wide range of applications.