Powder Classification Airflow Control Under Dust Collector Clogging

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Classification devices experience reduced accuracy due to fluctuations in airflow speed caused by factors such as filter clogging in dust collectors, leading to inefficiencies in sorting powder particles by diameter.

Innovation Solution

Incorporating a sorting mechanism, dust collector, measuring instrument, and control device to maintain airflow speed within a controlled range using mechanisms like fan motor adjustments and flow rate controllers, ensuring stable airflow for accurate classification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a dust collector is used to generate airflow for sorting powder particles, then the classification function is achieved, but the airflow speed fluctuates due to filter clogging leading to reduced classification accuracy

Engineering Contradiction:

Improveclassification accuracyVSAvoidairflow speed stability

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent implements a feedback control system where a measuring instrument continuously monitors the airflow speed generated by the dust collector, and a control device adjusts the dust collector's operation based on the measured values to maintain airflow speed within a target range, thereby resolving the instability caused by filter clogging

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The control device dynamically changes operational parameters of the dust collector (such as motor speed or valve opening) based on real-time airflow measurements to compensate for filter clogging effects and maintain stable classification performance

Inventive Principle:

Principle #35Parameter changes

2Productivity

If the dust collector operates continuously to maintain classification function, then productivity is maintained, but filter clogging accumulates causing wind speed reduction and accuracy loss

Engineering Contradiction:

Improvecontinuous operation capabilityVSAvoidclassification accuracy

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The continuous monitoring and feedback control system detects airflow speed degradation caused by filter clogging during continuous operation and adjusts operational parameters to compensate, allowing the system to maintain both continuous productivity and classification accuracy

Inventive Principle:

Principle #23Feedback

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

Stabilizes airflow speed to maintain classification accuracy, enhancing the efficiency of sorting reusable shot media from powder particles, thereby improving the overall performance of shot processing devices.

Implementation Method 1

a sorting mechanism (41) that sorts a group of powder particles using an airflow

Methodology Applied

Scientific EffectAirflow: Convection

Implementation Method 2

a measuring instrument (45) that measures a measurement value related to a speed of the airflow

Methodology Applied

Scientific EffectAnemometry: Sonic Anemometer

Data Source

PatentUS12583017B2Classification device and shot processing device

Publication Date: 2026.03.24 SINTOKOGIO LTD

AI summary

A classification device includes: a sorting mechanism that sorts a group of powder particles using an airflow; a dust collector that generates the airflow; a measuring instrument that measures a measurement value related to a speed of the airflow; and a control device that performs wind speed control that controls the speed of the airflow so that the measurement value is maintained within a control range.