Bolian Filter Cloth - Common Issues with Filter Press Cloths

In industrial production,  filter press cloths as a key filtering element, often encounters quality issues in practical applications due to various factors. These problems not only increase production costs but may also have adverse effects on product quality.

Filter Cloth Deformation and Misalignment

Issue Description:
During use, filter cloths can easily deform and become misaligned, causing gaps between the cloth and the filter plates. This affects the sealing performance, leading to air or material leakage.

Cause Analysis:

Uneven arrangement of filter plates and loose handle bolts.

Improper operation, such as applying pressure too quickly or too high, failure to follow operating procedures.

Filter cloth damage and high moisture content in the filter cake

Issue description:Filter cloth is prone to breakage during use, resulting in air and material leakage and affecting the filtration effect. Damage may manifested in the form of tearing, open wire, bulging ect.

Causes Analysis:

1.Substandard filter cloth quality, such as low fiber strength or poor durability.

2.Sharp particles or hard impurities present in the material.

3.Excessive filtration pressure exceeding the filter cloth’s capacity.

Decline in Filter Cloth Permeability

Issue Description: Over time, the water permeability of the filter cloth gradually decreases, resulting in lower filtration efficiency and higher water content in the filter cake.

Causes Analysis:

1. Filter cloth clogging due to fine particles or impurities depositing on the cloth surface, forming a cake layer.

2. Poor regeneration capability of the filter cloth, making it difficult to restore its permeability.

3.Improper filter cloth selection, with pore sizes either too large or too small, causing permeability issues.

Filter Cloth Wrinkles and Unevenness

Issue Description: Wrinkles and unevenness in the filter cloth during use affect sealing and filtration performance.

Causes Analysis:

1. Failure to properly smooth out the filter cloth during installation, resulting in wrinkles.

2.Uneven pressure distribution or deformation of the filter plates during compression filtration, leading to filter cloth wrinkles.

Filter Cloth Spraying Material

During compression filtration, material may spray out from damaged or poorly sealed areas of the filter cloth.

Causes Analysis:

1. Filter cloth damage or poor sealing.

2.Pressure settings too high, exceeding the filter cloth's capacity.

For more product information, please visit the Bolian official website product page or consult our professional support team.