Problems · Troubleshooting

Why Filter Cake Sticks & Is Difficult to Discharge

Symptoms · Root Causes · Proven Solutions

Filter cake adheres tightly after pressure filtration, requiring manual scraping, extending cycles and causing secondary blinding from residual cake.

The Problem

What Is Happening?

Filter cake adheres tightly after pressure filtration, requiring manual scraping, extending cycles and causing secondary blinding from residual cake.

Common Symptoms

  • Incomplete cake shedding after plates open
  • Thick residual sludge remains on the cloth surface
  • The next filtration cycle becomes much slower
  • Manual cleaning labor costs remain high
What Is Happening?
Root Causes

4 Root Causes

01

Ultra-Fine Colloids

Fine colloidal particles create strong adhesion between cake and fibers.

02

Wrong Weave Structure

The cloth surface lacks anti-stick performance.

03

Excess Flocculant

Overdosing creates sticky gel residue.

04

Low Cloth Tension

Loose installation allows the cake to grip the cloth tightly.

Proven Solutions

3 Recommended Actions

Solution 01

Use Smooth Anti-Stick Cloth

Adopt a smooth, non-stick coated surface with an optimized weave.

Solution 02

Correct Slurry Conditioning

Adjust flocculant concentration and feed solids to reduce gel formation.

Solution 03

Improve Cake Release

Maintain uniform cloth tension and consider plate vibration or auxiliary cake-drop equipment.

Recommended Products

Products for This Working Condition

Monofilament Filter Cloth
Filter Cloth

Monofilament Filter Cloth

Uniform two-dimensional mesh with high flow, easy cake release and reusable construction.

View Product
Polyester Filter Press Cloth
Filter Cloth

Polyester Filter Press Cloth

Balanced temperature resistance, oxidation resistance and dimensional stability for neutral and weak-acid filtration.

View Product

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