We are excited to introduce our latest innovation, the Fully Automatic Water-Washing Diaphragm Filter Press – a cutting-edge solution for industrial solid-liquid separation. Designed with a multi-chamber structure, this advanced filtration equipment is composed of a frame, filter plates, diaphragms, an automatic plate shifting system, a water-washing mechanism, and an electrical control system. Its core feature is the combination of an elastic diaphragm and a high-pressure water washing system, which enables secondary dewatering during the filtration process and automatic washing of the filter cloth after discharge.
Working Process
The working process of the fully automatic water-washing diaphragm filter press is divided into four main stages:
- Feeding Stage: Material is pumped into the filter chambers, forming an initial filter cake.
- Pressing Stage: High-pressure medium (water or compressed air) is injected into the diaphragm, further squeezing the filter cake to remove excess moisture.
- Blowing Stage: Compressed air is introduced to replace residual moisture, ensuring efficient dewatering.
- Discharge Stage: The automatic plate shifting system separates the filter plates one by one, and the filter cake falls off under the force of gravity.
The entire process is fully automated and controlled by a PLC system, eliminating the need for manual intervention.
Technical Specifications
- Filter Area: 50-300 m² (depending on the model configuration)
- Filter Chamber Volume: 0.8-3.5 m³
- Operating Pressure: Feed pressure ≤ 1.6 MPa, Pressing pressure ≤ 3.0 MPa
- Filter Plate Size: 800-2000 mm (Square plates)
- Filter Plate Material: Reinforced polypropylene or rubber composite materials
- Diaphragm Material: Thermoplastic elastomer
- Washing Water Pressure: ≥ 5.0 MPa
- Motor Power: Main pump motor 5.5-22 kW, Auxiliary motor 2.2-7.5 kW
- Control System: PLC + Touchscreen, supports remote communication interface
Applications
This filter press is ideal for handling suspensions with particle sizes smaller than 100 μm and solid concentrations between 10% and 50%. Key applications include:
- Mining Industry: Dewatering of metal concentrates and tailings dry stacking
- Chemical Industry: Separation of pigments, dyes, and intermediates
- Environmental Protection: Dewatering of municipal and industrial sludge
- Metallurgy: Concentration of alumina and titanium dioxide
- Food Industry: Filtration of plant extracts and fermentation mycelium
Filtration Efficiency
Under standard operating conditions, the filter press delivers impressive dewatering performance, achieving the following moisture content in the filter cakes:
- Inorganic Mineral Materials: 15% – 25%
- Organic Sludge: 55% – 70%
- Fine Chemicals: 18% – 30%
The filter cloth washing system ensures that the filtration rate does not decrease by more than 15% of the design value, with the typical cycle time for each filtration process ranging from 15 to 40 minutes. The solid recovery rate of the equipment is ≥ 98%, and the suspended solids content in the filtrate is typically below 200 mg/L.
This diaphragm filter press significantly improves dewatering efficiency through the secondary pressing technology, reducing the filter cake moisture content by 3-8 percentage points compared to traditional filter presses. The automatic water-washing mechanism also effectively extends the lifespan of the filter cloth, reducing downtime and maintenance frequency.
Conclusion
The Fully Automatic Water-Washing Diaphragm Filter Press offers exceptional performance, high dewatering efficiency, and reduced operational costs for industries requiring solid-liquid separation. Its innovative features ensure optimal filtration while minimizing maintenance, making it an ideal choice for a variety of industrial applications.
For more information or inquiries, please contact us today!
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