Disc Filter Assembly With Inter-Section Filtrate Discharge

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional continuous disc filters face limitations in maximizing filtrate removal from filter sections, leading to reduced cake production and efficiency.

Innovation Solution

The design includes a disc filter assembly with discharge conduits positioned between adjacent filter sections, featuring a narrower but longer filter section configuration, enhancing filtrate contact time and utilizing a siphon effect to remove filtrate efficiently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If discharge conduits are positioned between adjacent filter sections, then filtrate removal efficiency is improved, but device complexity increases

Engineering Contradiction:

Improvefiltrate removal efficiencyVSAvoiddischarge conduit arrangement

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The discharge conduit system is segmented into multiple individual conduits, with each conduit serving a specific location between adjacent filter sections. This segmentation allows for optimized filtrate removal at each interface while maintaining overall system functionality, resolving the contradiction by making the complex system manageable through modular organization.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Discharge conduits are strategically positioned at specific locations between adjacent filter sections where filtrate accumulation is most problematic. This localized approach concentrates filtration capability where it is most needed, improving overall filtrate removal efficiency without requiring a complete system redesign.

Inventive Principle:

Principle #3Local quality

2Area of moving object

If filter sections are configured narrower but longer, then filter section surface area increases, but manufacturing difficulty increases

Engineering Contradiction:

Improvefilter section surface areaVSAvoidfilter section fabrication

Core Design Contradiction:

Area of moving objectVSEase of manufacture

Solution Approach 1:

The filter sections transition from a conventional configuration to a narrower but longer geometry, effectively redistributing the surface area across different spatial dimensions. This dimensional transformation increases the total filter surface area while accommodating the sections within the existing rotational envelope of the filter assembly.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Productivity

If discharge conduits are positioned between adjacent filter sections, then cake production increases, but structural complexity increases

Engineering Contradiction:

Improvecake productionVSAvoidcore assembly structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The discharge conduits are integrated into the core assembly structure, merging the filtration function with the structural framework. This consolidation allows the conduits to serve dual purposes: supporting the filter sections and removing filtrate, thereby increasing cake production without proportionally increasing overall structural complexity.

Inventive Principle:

Principle #5Merging (Combining)

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

This configuration results in a 17% increase in available filter section surface area and cake production, improving the disc filter's capacity and efficiency.

Implementation Method 1

utilizing a siphon effect to remove filtrate efficiently

Methodology Applied

Scientific EffectSiphon effect: Syphon

Data Source

PatentUS12478903B2Continuous disc filter device

Publication Date: 2025.11.25 VALMET TECH OY

AI summary

A continuous disc filter device including a slurry containing bath, and a disc filter assembly comprising a rotor assembly supported to turn on a horizontal axis and having a filtrate outlet end, a plurality of filter discs spaced apart along the length of the rotor assembly horizontal axis, a plurality of spaced apart discharge conduits, and a plurality of disc filter section support and filtrate channel arms. Each disc filter section has a disc filter section filtrate outlet therein for filtrate to leave the disc filter section. A plurality of spaced apart discharge conduits each includes a discharge conduit housing extending along the rotor assembly horizontal axis and having a longitudinally extending discharge conduit filtrate passageway therein. Each discharge conduit is connected at one end to the rotor assembly filtrate outlet end and connected to respective disc filter section filtrate outlets, and each discharge conduit filtrate passageway is positioned between adjacent filter sections.