Electrode Filtration Chamber for Continuous Slurry Separation

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Solution Overview

Problem

Existing filtration devices require batch processing to collect concentrate, preventing continuous supply and processing of slurry.

Innovation Solution

A filtration device with a closed container containing cathode and anode electrodes, allowing continuous supply and circulation of slurry, and adjustable flow rates to separate solids and liquids efficiently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a filtration device is installed in a water treatment system, then water quality is improved, but the device occupies space and may become clogged

Engineering Contradiction:
Improvewater qualityVSAvoiddevice space occupation
Core Design Contradiction:
Object-affected harmful factorsVSVolume of moving object

Solution Approach 1:

The filtration device is installed inside the existing water tank, nesting one function within another space. The tank serves dual purposes: water storage and filtration housing, eliminating the need for separate dedicated filtration space and thereby reducing overall space occupation while maintaining water quality improvement.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The filtration device is designed as a removable filter cartridge that can be easily taken out for cleaning or replacement. This segmentation allows the filtration function to be separated from the main tank structure, enabling maintenance without removing the entire device and reducing the permanent space required for the filtration system.

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If a filtration device is installed in a water treatment system, then water quality is improved, but the device requires maintenance and cleaning

Engineering Contradiction:
Improvewater qualityVSAvoidmaintenance difficulty
Core Design Contradiction:
Object-affected harmful factorsVSEase of repair

Solution Approach 1:

The filter cartridge is designed as a separate, removable component that can be easily taken out from the tank for cleaning or replacement. This segmentation simplifies maintenance operations, allowing users to service the filtration system without disassembling the entire water treatment device, thereby improving ease of repair.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The filtration device incorporates features that enable users to perform maintenance themselves without specialized tools or expertise. The removable cartridge design allows straightforward user-based cleaning and replacement operations, reducing dependency on professional service and improving overall ease of maintenance.

Inventive Principle:
Principle #25Self-service

3Object-affected harmful factors

If a filtration device is installed in a water treatment system, then water quality is improved, but the device may leak or malfunction

Engineering Contradiction:
Improvewater qualityVSAvoiddevice reliability
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The filtration device incorporates sealing mechanisms and connection designs that prevent leakage before operation begins. Proper sealing at the cartridge-tank interface and connection points to tanks anticipates potential leakage issues and prevents them through design, thereby improving reliability.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The system includes indicators or monitoring features that allow users to detect potential malfunctions or leakage conditions early. This feedback mechanism enables timely intervention to prevent failures, improving the overall reliability of the water treatment system by allowing proactive maintenance.

Inventive Principle:
Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables continuous liquid removing processing without concentrate deposition, reducing device size and power consumption while achieving high particle removal rates.

Implementation Method 1

a filter cartridge (13) arranged inside the tank (12) and configured to filter the water stored in the tank (12)

Methodology Applied
Scientific EffectPhysical filtration: Filter (physical)

Data Source

PatentEP4427829B1Filtration device, and filtration system
Publication Date: 2026.04.29 MITSUBISHI KAKOKI KAISHA LTD
  • EP4427829B1 patent drawingFigure 1
  • EP4427829B1 patent drawingFigure 2
  • EP4427829B1 patent drawingFigure 3

AI summary

A filtration device according to the present invention includes: a filter chamber 3 to which slurry 40 containing a particle and a liquid having different electric charges is supplied through a supply line; a first electrode group 10A or a second electrode group 10B including cathode electrodes 11, 12 or anode electrodes 13, 14 provided on both side surfaces of the filter chamber to face each other and configured to separate the particle 42 and the liquid 41 in the slurry 40 into separated substances by an electric field action; and a first discharge chamber 4 and a second discharge chamber 5 provided for the first electrode group 10A and the second electrode group 10B to face the filter chamber 3 and configured to allow discharging of the separated substances.