Cyclone Separator Cleaning Access With Integrated Interior Lighting

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Solution Overview

Problem

Existing cyclone separators in powder coating systems require inefficient and time-consuming manual cleaning during powder changes, particularly when switching between different colors, leading to potential coating defects due to residual powder particles.

Innovation Solution

A cyclone separator design with a movable powder collection area and integrated lighting device that allows for easy access and illumination of the interior, enabling efficient cleaning by allowing the powder collection area to be moved relative to the separation area, and featuring automatic lighting activation and alignment for optimal illumination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the powder collection area is sealed and fixed in position to maintain separation efficiency, then separation performance is improved, but cleaning accessibility deteriorates

Engineering Contradiction:
Improveseparation performanceVSAvoidcleaning accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The powder collection area is designed to be movable rather than fixed, allowing it to switch between a first position during operation that maintains separation efficiency and a second position during cleaning that provides accessibility. This dynamic repositioning resolves the contradiction by making the system adaptable to different operational requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cyclone separator is divided into functionally independent sections: the separation area and the powder collection area. This segmentation allows the powder collection area to be moved independently to different positions, enabling it to maintain separation performance when connected and provide cleaning access when disconnected, thus resolving the contradiction between sealed operation and cleaning accessibility.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the cyclone separator is cleaned thoroughly to prevent coating defects, then powder quality is improved, but maintenance time increases

Engineering Contradiction:
Improvepowder qualityVSAvoidmaintenance time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The movable powder collection area enables quick repositioning between operational and cleaning positions, reducing the time required for maintenance activities while ensuring thorough cleaning can be performed when needed, thus resolving the contradiction between powder quality and maintenance time.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The design allows the powder collection area to be positioned for cleaning before the actual cleaning process begins, and the lighting device can be activated in advance to illuminate the working area, preparing the system for efficient cleaning operations that minimize downtime while ensuring thoroughness.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If the powder collection area is moved to provide cleaning access, then cleaning accessibility is improved, but separation efficiency deteriorates

Engineering Contradiction:
Improvecleaning accessibilityVSAvoidseparation efficiency
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system dynamically adjusts the position of the powder collection area based on operational requirements. During normal operation, the area is in the first position maintaining separation efficiency. During cleaning, it moves to the second position providing accessibility, thus resolving the contradiction by making efficiency and accessibility mutually exclusive only in time, not in design.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

By segmenting the cyclone separator into movable powder collection area and stationary separation area, the design allows the collection area to be detached or repositioned for cleaning without affecting the integrity and efficiency of the separation area, thus resolving the contradiction between cleaning access and separation efficiency.

Inventive Principle:
Principle #1Segmentation

4Measurement precision

If a lighting system is added to illuminate the interior for cleaning inspection, then cleaning quality is improved, but device complexity increases

Engineering Contradiction:
Improvecleaning inspection qualityVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The lighting device is integrated into the movable powder collection area structure, utilizing the existing movement mechanism and space. The lighting system activates automatically when the area is in the cleaning position, providing illumination without requiring separate control systems or additional complex infrastructure, thus resolving the contradiction between inspection quality and system complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The movable powder collection area serves multiple functions: it maintains separation efficiency during operation, provides cleaning accessibility when repositioned, and houses an integrated lighting system for inspection. This multi-functionality reduces the need for separate dedicated components, resolving the contradiction between cleaning inspection quality and device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Facilitates significantly more efficient internal cleaning, reducing downtime and ensuring thorough removal of residual powder, thereby improving the quality of recovered powder for reuse in the coating process.

Implementation Method 1

The centrifugal forces acting on the powder particles in the mixed flow accelerate them radially outwards and are thus separated from the gas flow

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

the powder particles to be separated from the mixed flow settle to the outer wall of the separation area as a result of the centrifugal forces acting on them and are conveyed downwards with the wall boundary layer flow in spiral paths

Methodology Applied
Scientific EffectCentrifugal separation: Centrifugal Separation

Data Source

PatentEP4166235B1Cyclonic separator, in particular for a powder recovery device of a powder coating installation
Publication Date: 2026.04.29 GEMA SWITZERLAND GMBH
  • EP4166235B1 patent drawingFigure 1
  • EP4166235B1 patent drawingFigure 2~3
  • EP4166235B1 patent drawingFigure 4

AI summary

The invention relates to a cyclone separator (1) with an inlet region (2) having an inlet for a powder-air mixture stream, a separation region (3) adjoining the lower end region of the inlet region (2) for centrifugal separation of at least a portion of the powder contained in the mixture stream, and a powder collection region (4) connected or connectable to the lower end region of the separation region (3) for collecting the powder separated in the separation region (3). The cyclone separator (1) further comprises a lighting device (6) with at least one light source (7), wherein the lighting device (6) is configured to illuminate or light up, as required, at least partial areas of the interior of the separation region (3) and/or the inlet region (2) of the cyclone separator (1) by means of the at least one light source (7), particularly when the powder collection region (4) is in its second position.