Problems & Solutions

Why Does Filter Cloth Blind?

Slow Filtration & Rising Pressure Drop — 4 Causes · 3 Solutions

Expert diagnosis and step-by-step solutions for filter cloth blinding in industrial filter press applications.

The Problem

Filter Cloth Blinding

“Our filter press is getting slower and slower — differential pressure keeps rising, and we’re forced to shut down for cleaning far too often...”

Why It Happens

Ultra-fine particles penetrate and lodge within the cloth pores, progressively blocking the filtration path and reducing permeability.

Excessively high solid concentration causes rapid filter cake buildup on the cloth surface, sealing the pores before full filtration occurs.

Mismatched pore size between cloth and particle distribution leads to blinding. Too coarse allows pass-through; too fine causes premature blocking.

Chemical compounds in the slurry precipitate and crystallize within cloth fibers, forming hard scale deposits that permanently reduce flow.

The Solution

Solution 01

Select pore size matched to your particle size distribution — use higher mesh count cloth for fine particles.

Solution 02

Reduce feed concentration moderately and increase filtration pressure to maintain optimal flow balance.

Solution 03

Establish a structured cloth cleaning SOP — extend service life and maintain consistent filtration performance.

Filter Cloth

Specially engineered for fine particle applications. Superior pore uniformity prevents blinding and extends service life.

Service

Professional deep-cleaning program that restores cloth permeability and significantly extends usable service life.

Our filtration engineers are ready to diagnose your problem and recommend the right solution — fast.