Grinding Device With Counter-Rotating Impact Elements

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Solution Overview

Problem

Existing grinding systems lack efficiency in particle size control and distribution, often producing dust and requiring external cleaning, with heavy particles causing wear and tear, and energy inefficiency.

Innovation Solution

A grinding device with counter-rotating impact elements and a vacuum system that uses adjustable outlet ports and pneumatic blowers to achieve precise particle size control, self-discharge of heavy particles, and continuous cleaning, reducing dust and energy consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If fixed impact elements that rotate are used to break down materials, then grinding capability is achieved, but particle size control and distribution are poor

Engineering Contradiction:
Improveparticle size controlVSAvoidgrinding efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent employs free-floating impact elements (grinding balls) that dynamically adjust their positions and trajectories based on rotational forces, allowing adaptive particle size control while maintaining high grinding efficiency through continuous motion adjustment

Inventive Principle:
Principle #15Dynamics

2Productivity

If traditional grinding systems operate continuously, then throughput is maintained, but heavy particles cause wear and tear

Engineering Contradiction:
ImprovethroughputVSAvoidwear and tear
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent extracts heavy particles from the grinding chamber through a discharge port positioned at the bottom, allowing continuous removal of wear-causing materials while maintaining uninterrupted throughput through the ground product

Inventive Principle:
Principle #2Taking out (Extraction)

3Productivity

If traditional grinding systems are used, then material is ground, but dust is generated and external cleaning is required

Engineering Contradiction:
Improvegrinding outputVSAvoiddust generation
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent converts the harmful dust byproduct into a beneficial separated product stream by using a vacuum system to capture and collect dust particles, transforming them from contaminants into recoverable material while maintaining clean operation

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

4Productivity

If conventional grinding approaches are used, then particles are reduced, but energy efficiency is low

Engineering Contradiction:
Improvegrinding outputVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent employs a vacuum system with pneumatic blowers to create controlled airflow that assists particle separation and discharge, reducing the mechanical energy required for grinding while maintaining high productivity through aerodynamic assistance

Inventive Principle:
Principle #29Pneumatics and hydraulics

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 solution provides a finer grind with controlled particle size distribution, reduces dust generation, minimizes wear and tear, and enhances energy efficiency by continuously removing heavy particles and maintaining a cleaner product.

Implementation Method 1

a vacuum system that uses adjustable outlet ports and pneumatic blowers to achieve precise particle size control, self-discharge of heavy particles

Methodology Applied
Scientific EffectPneumatic separation: Air Entrainment

Implementation Method 2

Larger and heavier particles in a rotational motion will have more outward inertia, therefore the placement of the vacuum outlet further from the center of the spinning blades will remove particles of larger diameter

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 3

Rotating elements such as; hammers, knife, pins, etc. have been designed specifically to break down materials based on the impact forces

Methodology Applied
Scientific EffectImpact force: Impact Force

Data Source

PatentUS11998922B2Particles grinding and classifying system and method of using the same
Publication Date: 2024.06.04 GUSMAN DEL CAMPO BERNARDO
  • US11998922B2 patent drawing
  • US11998922B2 patent drawing
  • US11998922B2 patent drawing

AI summary

A grinder device is provided with two sets of counter-rotating impact elements that pulverize the material via collisions, which represent impact forces twice as powerful through the doubling of the tip velocity. A continuous self-discharge of harder and heavier particles is provided to assure higher energy efficiency and a cleaner product that subjects the unit to less wear and tear. Outlet ports are provided on flange caps that are removably attached to the grinder device so that the position of the outlet port with relation to the position of a grinder stator is selectively modified. The device of the present invention can be provided in a container for integrating into an existing system or to operate as a standalone unit.