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Overview
Plate And Frame Filter Housing
1. Definition & Structure
A plate-and-frame filter is a filtration device that separates solids from liquids by alternating filter plates and hollow frames to form filtration chambers.
Key components include:
Filter Plates: Typically feature support structures or flanges to secure filter cloth.
Frames: Provide space for solid accumulation, forming filter cakes.
2. Applications
Primarily used in industrial filtration, such as sludge dewatering and oil filtration (e.g., plate-frame type oil filter).
Applied in industries like food, chemicals, and pharmaceuticals for high-precision solid-liquid separation.
3. Technical Features
High Filtration Pressure: Suitable for high-viscosity or high-solid-content media.
Removable Design: Easy to clean and maintain filter cloth or plates.
Material Options: Commonly stainless steel or corrosion-resistant materials for various operating conditions.
4. Related Terms
Plate Filter Press: Emphasizes pressure-driven filtration.
Belt Filter: An alternative for continuous filtration.
1. How Does a Plate and Frame Filter Press Work?
A plate and frame filter press separates solids from liquids by applying hydraulic pressure to filter plates and frames, allowing the liquid to pass through the filter cloth while retaining solids as filter cakes. The process consists of four stages:
Feeding & Chamber Formation: Filter plates and frames alternate, with filter cloth covering both sides, forming a sealed chamber.
Filtration & Separation: Hydraulic pressure (0.6–2.0 MPa) forces liquid through the filter cloth, leaving solids as filter cakes.
Cake Discharge: After pressure release, plates and frames separate, and the filter cake falls off by gravity or mechanical assistance.
Filter Cloth Cleaning: The cloth is cleaned with water or compressed air to restore permeability.
2. How to Choose a Plate and Frame Filter Press?
Based on Material Properties:
For corrosive media (acids, alkalis), use stainless steel (304/316L) or reinforced polypropylene plates.
For high-viscosity or high-solid-content materials, opt for high-pressure models (1.6 MPa+).
Based on Processing Volume:
Small batches: Manual press.
Large-scale: Automated models (PLC-controlled).
Based on Industry Standards:
Food/pharma applications require FDA compliance and CIP/SIP cleaning.
4. Common Issues & Solutions:
Hazy Filtrate: Check for damaged or misaligned filter cloth.
Cake Sticking: Adjust hydraulic pressure or use vibration-assisted discharge.
Leakage: Replace seals or inspect plate flatness.
Overview
Plate And Frame Filter Housing
1. Definition & Structure
A plate-and-frame filter is a filtration device that separates solids from liquids by alternating filter plates and hollow frames to form filtration chambers.
Key components include:
Filter Plates: Typically feature support structures or flanges to secure filter cloth.
Frames: Provide space for solid accumulation, forming filter cakes.
2. Applications
Primarily used in industrial filtration, such as sludge dewatering and oil filtration (e.g., plate-frame type oil filter).
Applied in industries like food, chemicals, and pharmaceuticals for high-precision solid-liquid separation.
3. Technical Features
High Filtration Pressure: Suitable for high-viscosity or high-solid-content media.
Removable Design: Easy to clean and maintain filter cloth or plates.
Material Options: Commonly stainless steel or corrosion-resistant materials for various operating conditions.
4. Related Terms
Plate Filter Press: Emphasizes pressure-driven filtration.
Belt Filter: An alternative for continuous filtration.
1. How Does a Plate and Frame Filter Press Work?
A plate and frame filter press separates solids from liquids by applying hydraulic pressure to filter plates and frames, allowing the liquid to pass through the filter cloth while retaining solids as filter cakes. The process consists of four stages:
Feeding & Chamber Formation: Filter plates and frames alternate, with filter cloth covering both sides, forming a sealed chamber.
Filtration & Separation: Hydraulic pressure (0.6–2.0 MPa) forces liquid through the filter cloth, leaving solids as filter cakes.
Cake Discharge: After pressure release, plates and frames separate, and the filter cake falls off by gravity or mechanical assistance.
Filter Cloth Cleaning: The cloth is cleaned with water or compressed air to restore permeability.
2. How to Choose a Plate and Frame Filter Press?
Based on Material Properties:
For corrosive media (acids, alkalis), use stainless steel (304/316L) or reinforced polypropylene plates.
For high-viscosity or high-solid-content materials, opt for high-pressure models (1.6 MPa+).
Based on Processing Volume:
Small batches: Manual press.
Large-scale: Automated models (PLC-controlled).
Based on Industry Standards:
Food/pharma applications require FDA compliance and CIP/SIP cleaning.
4. Common Issues & Solutions:
Hazy Filtrate: Check for damaged or misaligned filter cloth.
Cake Sticking: Adjust hydraulic pressure or use vibration-assisted discharge.
Leakage: Replace seals or inspect plate flatness.
