Dust and Thin Metal Separation With Inert Powder Explosion Control

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Solution Overview

Problem

The collection of thin metal materials and metal dust in metal processing poses challenges due to high volume occupation, high human resource costs, and safety risks, including contamination and explosion hazards in clean workshops.

Innovation Solution

A mixed collection and compression device comprising a separation mechanism, filtering mechanism, inert powder adding mechanism, and compression mechanism, guided by a power gas source, separates and processes dust and thin metal materials separately, using inert powder to reduce explosion risk and enhance automation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If thin metal materials are collected using large-capacity metal boxes or long plastic bags, then the collection capacity is improved, but the volume occupation and storage space requirement increase significantly

Engineering Contradiction:
Improvecollection capacityVSAvoidvolume occupation
Core Design Contradiction:
Quantity of substanceVSVolume of moving object

Solution Approach 1:

The patent extracts the thin metal materials from the mixed collection process and separates them from metal dust through a separation mechanism. The thin metal materials are collected in a dedicated collection container rather than being mixed with dust in large bags, thereby reducing the volume needed for storage and transport while maintaining collection capacity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the collection process into separate streams: one for thin metal materials and another for metal dust. By dividing the mixed waste stream into distinct components, the system reduces the volume occupation for thin metal storage while maintaining efficient collection capacity.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If manual processing is used for collecting thin metal materials, then the flexibility and adaptability are improved, but the human resource cost and work intensity increase significantly

Engineering Contradiction:
ImproveflexibilityVSAvoidhuman resource cost
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent implements a self-service collection system where the separation mechanism automatically separates thin metal materials from metal dust without requiring manual intervention. The system uses a separation mechanism with a separation surface that passively divides the mixed materials based on their physical properties, eliminating the need for human workers while maintaining operational flexibility.

Inventive Principle:
Principle #25Self-service

3Productivity

If thin metal materials and metal dust are collected together, then the collection efficiency is improved, but the contamination risk to the clean workshop and explosion risk increase

Engineering Contradiction:
Improvecollection efficiencyVSAvoidcontamination and explosion risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the collection process into separate streams: one for thin metal materials and another for metal dust. By dividing the mixed waste stream into distinct components, the system reduces the volume occupation for thin metal storage while maintaining efficient collection capacity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts the thin metal materials from the mixed collection process and separates them from metal dust through a separation mechanism. The thin metal materials are collected in a dedicated collection container rather than being mixed with dust in large bags, thereby reducing the volume needed for storage and transport while maintaining collection capacity.

Inventive Principle:
Principle #2Taking out (Extraction)

4Reliability

If inert powder is added to dust-containing gas, then the explosion risk is reduced, but the device complexity increases

Engineering Contradiction:
Improveexplosion risk reductionVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces inert powder as an intermediary substance that is mixed with metal dust to reduce its explosiveness. The inert powder acts as a dilutant and heat sink, raising the minimum ignition energy of the dust cloud. This is achieved through a simple mixing mechanism that incorporates the inert powder into the dust collection system without requiring complex safety systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 device effectively separates and compresses dust and thin metal materials, reducing contamination, explosion risk, and human resource costs while maintaining workshop cleanliness and safety.

Implementation Method 1

the separation mechanism is configured to sieve a flowing gas in the separation mechanism into a dust-containing gas and a thin metal material

Methodology Applied
Scientific EffectGravitational settling: Gravitation

Implementation Method 2

Under an action of the power gas source, the dust and the thin metal material can be guided to directionally flow in the separation mechanism along with a gas flow

Methodology Applied
Scientific EffectInertial separation:

Implementation Method 3

The filtering mechanism is connected to the separation mechanism and configured to filter dust in the dust-containing gas

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 4

The compression mechanism is connected to the separation mechanism and configured to collect and compress the thin metal material

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 5

The power gas source is configured to provide a negative pressure environment for a gas inside the separation mechanism to make the gas sequentially pass through the separation mechanism, the inert powder adding mechanism, and the filtering mechanism

Methodology Applied
Scientific EffectNegative pressure: Pressure Gradient

Implementation Method 6

Under an action of the inert powder adding mechanism, inert dust is mixed in the dust-containing gas, which can increase the minimum ignition energy of mixed metal dust to reduce the explosion risk

Methodology Applied
Scientific EffectDilution:

Data Source

PatentEP4653100A1Mixed collection and compression device for dust and thin metal
Publication Date: 2025.11.26 DONGGUAN VILLO ENVIRONMENTAL PROTECTION INC
  • EP4653100A1 patent drawingFigure 1
  • EP4653100A1 patent drawingFigure 2
  • EP4653100A1 patent drawingFigure 3

AI summary

A mixed collection and compression device for dust and thin metal includes a separation mechanism (1) used to sieve a flowing gas therein into a dust-containing gas and a metal material; a filtering mechanism (2) connected to the separation mechanism and used to filter dust in the dust-containing gas; an inert powder adding mechanism connected between the separation mechanism and the filtering mechanism and used to add inert powder into the dust-containing gas during transportation; a compression mechanism (4) connected to the separation mechanism and used to collect and compress the metal material; and a power gas source (5) used to provide a negative pressure environment for a gas inside the separation mechanism to make the gas sequentially pass through the separation mechanism, the inert powder adding mechanism, and the filtering mechanism. It has the effects of reducing the explosion risk and improving the safety of field work.