Filter Device with Conveying Means for Separating Material

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Solution Overview

Problem

Existing filter devices used in processing machines clog quickly, leading to frequent replacements and increased costs, especially in one-way use filters.

Innovation Solution

Incorporation of conveying means with a conveying drive to move separated material away from the filter independently, preventing premature clogging by using blades and a scraper mechanism that can be controlled to remove material from the filter trough.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the filter is advanced frequently to provide a fresh section for filtration, then the filtration capability is maintained, but the filter becomes clogged quickly and replacement costs increase

Engineering Contradiction:
Improvefiltration capabilityVSAvoidfilter replacement frequency
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The filter belt is divided into multiple filter sections that can be independently advanced. The conveying means selectively advance individual filter sections that contain accumulated separated material, while leaving clean sections in place for continued filtration. This segmentation allows the filter system to maintain capability without frequent complete replacements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of discarding the entire filter belt when one section becomes clogged, the system recovers by selectively advancing only the affected filter sections to a discharge position where accumulated material is removed. The cleaned sections are then returned to the filtration path, extending the overall filter life and reducing replacement frequency.

Inventive Principle:
Principle #34Discarding and recovering

2Productivity

If the filter belt is continuously advanced to prevent clogging, then material is removed from the filter, but the filter structure and drive mechanism become more complex

Engineering Contradiction:
Improvematerial removal rateVSAvoidconveying mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The conveying means are integrated with the existing filter belt structure, using the same support and drive mechanisms. The filter belt itself serves as the conveying medium, eliminating the need for separate conveying structures. This merging reduces overall system complexity while maintaining effective material removal capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The filter belt performs dual functions: filtration and self-conveying of separated material. The material accumulated on the filter belt is automatically transported along with the belt to the discharge position, eliminating the need for external conveying devices and simplifying the overall system architecture.

Inventive Principle:
Principle #25Self-service

3Device complexity

If separated material is allowed to accumulate on the filter, then the filter structure remains simple, but the filter clogs quickly and requires frequent replacement

Engineering Contradiction:
Improvefilter structure simplicityVSAvoidfilter operation duration
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The filter system transitions from a static configuration to a dynamic one where filter sections can be selectively advanced independently. The conveying means enable the filter belt to dynamically reposition accumulated material, allowing the system to maintain simple structure while significantly extending operational duration through active material management.

Inventive Principle:
Principle #15Dynamics

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

The solution significantly reduces filter clogging, allowing for extended operation without frequent replacements and minimizing costs by continuously conveying separated material to a collection station.

Implementation Method 1

a filter 10 which can be accommodated in the trough 8 in order to form a filter trough 8a into which the liquid to be filtered can be guided

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 2

the conveying means have blades ('paddles') 20a, 20b, 20c, 20c, which are mounted such that they can rotate about an axis of rotation

Methodology Applied
Scientific EffectMechanical transport:

Implementation Method 3

The filter device has a scraper 30 which can be pivoted by means of a second conveying drive 35 about a pivot axis 33

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP2783737B1Filter device and method for separating material from a liquid
Publication Date: 2018.01.03 RHYTON
  • EP2783737B1 patent drawingFigure 1
  • EP2783737B1 patent drawingFigure 2~3
  • EP2783737B1 patent drawingFigure 4~5

AI summary

The apparatus has a tub (8) utilized for formation of a filter trough (8a) into which liquid material to be separated is introduced. A filter drive (15) is utilized for transporting a filter (10) by the filter trough. Conveyance units, drive gears (23) and a stripping device are utilized for conveying deposited material. Promotion drives (25, 35) are located relative to the filter to move the liquid material. The conveyance units are provided with circulating shovels (20a-20d) and movable scrapers (30). A rotary part (22) i.e. gear wheel, is arranged at the circulating shovels. An independent claim is also included for a method for separating material from a liquid.