Factors Affecting the Regeneration Performance of Horizontal Belt Filter Cloth

Filter cloth regeneration plays a vital role in maintaining filtration efficiency. When newly installed, filter cloth offers optimal performance. However, as filtration cycles increase, the pores of the cloth become clogged with solid particles from the processed material, leading to decreased efficiency and the need for regeneration.

Key Factors Influencing Filter Cloth Regeneration:

1. Material Composition and Weave Structure

The regeneration performance of a horizontal belt filter cloth depends on the fiber type and weaving technique. Generally, performance increases in the order: staple fiber < multifilament < monofilament.

Additionally, twill and satin weaves show better regeneration performance compared to plain weave due to their smoother surface and lower clogging tendency.

2. Surface Treatment Techniques

Calendering Treatment
High-temperature calendering smooths the surface of the cloth, reduces fiber burrs, minimizes filter cake adhesion, and significantly improves high-pressure water cleaning efficiency.

Surface Coating
Coating the filter cloth with materials like PTFE forms a hydrophobic microporous layer, improving filtration precision and reducing particle penetration—thereby extending regeneration intervals.

Anti-static Treatment
For dust-prone materials (e.g., coal slurry), adding anti-static agents helps reduce particle adhesion and lowers cleaning frequency.

3. Additional Influencing Factors and Solutions

Production Equipment Precision
Filter cloths produced by high-precision looms offer more uniform pore distribution, reducing the risk of particle clogging.

Operational Parameters
Excessive filtration pressure can drive particles deep into the fabric matrix. Adjust pressure and flow rate based on material characteristics to prevent deep embedding.