Cyclone Filter Layout for Composite Machining Exhaust Air

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Solution Overview

Problem

Existing extraction and cleaning systems for composite workpieces containing metal and non-metal are inefficient, energetically costly, and require significant space, while also posing environmental and noise pollution risks due to the spread of vapors, fumes, and smoke, and frequent maintenance is necessary.

Innovation Solution

A multi-stage cleaning system comprising a cyclone separator stage with parallel-connected cyclones, mechanical filter stages, and an activated carbon filter, optimized for compact design and efficient air purification, with features like upward outlets, C-shaped filter discs, and integrated sound damping to reduce noise and maintenance needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a multi-stage cleaning system with cyclone separator and filter stages is implemented, then air purification effectiveness is improved, but device complexity and space requirements increase

Engineering Contradiction:
Improveair purification effectivenessVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The cleaning system is divided into multiple independent stages: cyclone separator stage for particle separation, mechanical filter stage for fine particle removal, and activated carbon filter stage for vapor adsorption. Each stage handles specific contaminants, allowing the system to achieve comprehensive purification while maintaining modular complexity that facilitates maintenance and optimization.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The filter stages are arranged concentrically around the cyclone separator outlets, with the mechanical filter stage positioned above the cyclone outlets and the activated carbon filter stage integrated into the housing structure. This nested arrangement maximizes space utilization and reduces overall device footprint while maintaining clear flow paths between stages.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Object-affected harmful factors

If extraction systems convey air laden with vapors and smoke into the open, then air quality at the workplace is improved, but energy loss increases due to heat loss

Engineering Contradiction:
Improveair qualityVSAvoidheat loss
Core Design Contradiction:
Object-affected harmful factorsVSLoss of energy

Solution Approach 1:

The system converts the harmful hot contaminated air into a beneficial resource by capturing the heat energy through the extraction process. The hot air passing through the cyclone separator and filters is cooled selectively, allowing heat recovery that can be reused in the machining process, thereby converting the previously wasted thermal energy into a useful resource while still achieving effective air purification.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Productivity

If multiple filter stages are arranged in sequence, then cleaning capacity is improved, but maintenance frequency and expense increase

Engineering Contradiction:
Improvecleaning capacityVSAvoidmaintenance frequency
Core Design Contradiction:
ProductivityVSEase of repair

Solution Approach 1:

The system incorporates adjustable flow distribution mechanisms that allow dynamic optimization of air flow across different filter stages based on operating conditions. The cyclone separator package can be adjusted to handle varying particle loads, and the filter stages can be selectively maintained based on actual contamination levels, reducing unnecessary maintenance while ensuring optimal cleaning capacity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cyclone separator stage performs preliminary separation of larger particles and glowing chips before the air reaches the finer filter stages. This preliminary action protects the subsequent mechanical and activated carbon filters from excessive contamination, extending their service life and reducing maintenance frequency while maintaining high cleaning capacity for the remaining contaminants.

Inventive Principle:
Principle #10Preliminary action

4Object-affected harmful factors

If extraction and cleaning devices are designed for high cleaning capacity, then air quality is improved, but noise generation increases

Engineering Contradiction:
Improveair qualityVSAvoidnoise
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The cyclone separator acts as an intermediary device that pre-separates particles and reduces turbulence in the air stream before it enters the filter stages. This intermediary action reduces the noise generated by the filters, as they operate with smoother, less turbulent flow, while still maintaining high cleaning capacity for particle and vapor removal.

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 system effectively purifies air with high reliability, reduces noise, minimizes space requirements, and extends maintenance intervals, while maintaining flexibility for varying air throughputs, thus improving workplace hygiene and energy efficiency.

Implementation Method 1

a cyclone separator stage, through which the flow passes

Methodology Applied
Scientific EffectCyclone separation: Cyclone Separation

Implementation Method 2

cyclone separator stage with at least one package of at least three, preferably at least six individual cyclones connected in parallel with each other in terms of flow

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 3

at least two mechanical filter stages, through which the flow passes

Methodology Applied
Scientific EffectPhysical filtration: Filter (physical)

Implementation Method 4

an activated carbon filter stage, through which the flow passes

Methodology Applied
Scientific EffectAdsorption: Adsorption

Data Source

PatentUS20260034495A1Cleaning device for exhaust air of an apparatus for machining composite-material workpieces containing metal and non-metal
Publication Date: 2026.02.05 UNIFLEX HYDRAULIC
  • US20260034495A1 patent drawing
  • US20260034495A1 patent drawing
  • US20260034495A1 patent drawing

AI summary

An apparatus for machining composite-material workpieces containing metal and non-metal has at least one machine which is used to machine the composite-material workpieces and which isolates shavings containing metal and non-metal or isolates other particles, and a suction and cleaning device for air contaminated with such particles. The suction and cleaning device has a fan and, arranged in fluidic sequence for multi-stage cleaning of the contaminated air, a cyclone separation stage, at least two mechanical filter stages and an activated carbon filter stage. The cyclone separation stage has a packet of at least three, preferably at least six, individual cyclones fluidically connected in parallel, which are arranged around a feed which supplies them via a distribution star. The individual cyclones have upwardly directed outlets for cleaned air; and above the outlets of the individual cyclones, a first of the mechanical filter stages is arranged engaging around the allocated feed.