Industrial filter cloth plays a crucial role in modern industrial production, and its function and filtering principle are of great significance for improving production efficiency, ensuring product quality, and environmental protection.

1、 The function of industrial filter cloth

Solid liquid separation:

Industrial filter fabrics are widely used in the field of solid-liquid separation, which intercept solid particles in liquids through physical barriers, achieving liquid purification or solid recovery.

In industries such as chemical and pharmaceutical, filter cloth is used to separate catalysts, unreacted raw materials, or by-products from reaction mixtures, improving product purity and yield.

Gas solid separation:

In the fields of smoke control and air purification, filter cloth is used to capture solid particles such as dust and smoke in the air, reduce air pollution, and protect the environment and human health.

For example, in high pollution industries such as ironworks and power plants, filter cloth is the core component of flue gas dust removal systems, effectively removing smoke and harmful gases from flue gas.

Liquid solid separation:

In industries such as water treatment and food and beverage, filter cloth is used to remove suspended solids and impurities from liquids, improving their cleanliness and transparency.

For example, in the beer brewing process, filter cloth is used to remove yeast and other microorganisms from the beer, ensuring the quality and taste of the beer.

Special filtration:

Industrial filter fabrics also have special filtering functions, such as corrosion resistance, high temperature resistance, wear resistance, etc., suitable for filtering needs under special working conditions.

For example, filter cloth working in high temperature environments needs to have good heat resistance and chemical stability to ensure filtration efficiency and service life.

2、 The filtration principle of industrial filter cloth

Surface filtration:

Surface filtration refers to the interception of particulate matter larger than the pore size through the pore structure on the surface of a filter cloth, achieving solid-liquid or gas-solid separation.

This filtering method is suitable for substances with larger particles, such as dust, sediment, etc.

Deep filtering:

Deep filtration refers to the complex fiber structure inside the filter cloth, which can capture tiny particles smaller than the surface pore size.

This filtering method is suitable for substances with smaller particles, such as bacteria, viruses, etc. Deep filtration typically has high filtration accuracy and a long service life.

Screening effect:

The sieving effect refers to the sieving of particulate matter through the pore structure on the surface of filter cloth, where particles larger than the pore size are intercepted and particles smaller than the pore size pass through.

This filtering method is suitable for material systems with a wide distribution of particle sizes.

Adsorption effect:

The adsorption effect refers to the fiber material on the surface of the filter cloth having a certain adsorption capacity for particulate matter, which can enhance the filtration effect.

This adsorption effect helps to improve filtration accuracy and extend the service life of filter cloth.

In summary, industrial filter fabrics play an important role in solid-liquid separation, gas-solid separation, liquid-solid separation, and special filtration. Their filtration principles mainly include surface filtration, deep filtration, sieving effect, and adsorption effect. With the advancement of technology and the development of industry, the performance and application scope of industrial filter fabrics will continue to expand and optimize.