Paint Booth Filter Module With Replaceable Porous Media

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Solution Overview

Problem

Existing filter modules in paint booths have a smooth surface that limits the separation of paint and varnish residues, leading to inefficient filtration and increased waste due to non-reusable components.

Innovation Solution

A filter module with column-shaped or trough-shaped support bodies and a separation medium fixed in a force-fitting and/or form-fitting manner, allowing for high-density cell arrangements and easy replacement or recycling of the separation medium.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a smooth surface filter is used, then the filter structure is simple and easy to manufacture, but the separation capacity for paint and varnish residues is limited

Engineering Contradiction:
Improvefilter structure simplicityVSAvoidseparation capacity
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The invention applies porous separation media with high hole density (at least 20, preferably more than 40 cells) to the filter surface. These porous structures dramatically increase the separation capacity for paint and varnish residues while maintaining a relatively simple overall filter structure, resolving the contradiction between manufacturing simplicity and separation productivity.

Inventive Principle:
Principle #31Porous materials

2Stability of the object's composition

If the separation medium is permanently attached to the support body, then the filter structure is stable, but the separation medium cannot be replaced or recycled

Engineering Contradiction:
Improvefilter structure stabilityVSAvoidseparation medium replaceability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The invention segments the filter into two distinct parts: a reusable support body and a replaceable separation medium. The separation medium can be attached or detached from the support body, allowing it to be replaced when saturated or damaged while the support body remains for continued use. This segmentation resolves the contradiction between structural stability and component replaceability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention enables the separation medium to be discarded after use (when saturated with paint residues) and recovered/recycled through proper disposal methods. The support body is retained and reused, reducing waste and costs. This approach resolves the contradiction by allowing the separation medium to be temporary while the support structure remains permanent.

Inventive Principle:
Principle #34Discarding and recovering

3Productivity

If high hole density is implemented, then the separation efficiency increases, but the cell wall thickness decreases making the structure more fragile

Engineering Contradiction:
Improveseparation efficiencyVSAvoidcell wall strength
Core Design Contradiction:
ProductivityVSStrength

Solution Approach 1:

The invention employs specially designed porous separation media with high hole density (at least 20, preferably more than 40 cells) that maintain adequate structural strength. The porous structure is engineered to provide sufficient separation efficiency while preserving the mechanical integrity needed for practical filter operation, resolving the contradiction between separation productivity and structural strength.

Inventive Principle:
Principle #31Porous materials

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

Enhances filtration efficiency and reduces waste by enabling tailored filtration based on overspray type and facilitating easy maintenance and recycling of reusable components.

Implementation Method 1

The cavities allow the respective filter element to absorb a considerable amount of paint and varnish residues

Methodology Applied
Scientific EffectAdsorption: Adsorption

Implementation Method 2

a separation medium with, at least in some regions, a separation surface comprising a plurality of cells formed in the form of cavities

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP4628189A1Filter module for separating paint and/or paint residues, in particular overspray in a paint booth
Publication Date: 2025.10.08 INNOVATIVE PAINT & CONVEYOR SYST SL
  • EP4628189A1 patent drawingFigure 1
  • EP4628189A1 patent drawingFigure 2
  • EP4628189A1 patent drawingFigure 3

AI summary

A filter module (1) for separating paint and/or varnish residues, in particular overspray, in a paint booth, having an inflow opening (2) and an outflow opening arranged in a housing box (7), and a filter arrangement (4) arranged in the housing box (7), comprising a plurality of filter elements (6) for separating the paint and/or varnish residues, characterized in that one or more of the filter elements (6) have a columnar or trough-shaped support body (7) and a separation medium (16, 26, 36, 46), the separation medium (16, 26, 36, 46) being fixed to the support body (7) in a force-fitting and/or form-fitting manner.