Bionic Wavy Crushing Tool for Damp Attapulgite Clay

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Solution Overview

Problem

Existing methods for crushing attapulgite clay, a highly cohesive mineral, face challenges such as inefficient processing due to high water content, adhesion issues with crushing tools, and environmental concerns associated with traditional drying and crushing processes, which affect the quality and efficiency of producing pellets of the required size for lithium-ion battery separators.

Innovation Solution

A bionics-based anti-adhesion crushing tool with a wavy annular crushing pattern inspired by earthworm movements, featuring guiding-in and guiding-out slopes and valley portions, which creates dynamic crushing gaps that reduce adhesion forces and enhance centrifugal separation of attapulgite pellets, allowing for continuous processing without the need for pre-drying.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If traditional drying methods (sun-drying or coal-furnace-drying) are used before crushing, then the cohesiveness of attapulgite clay is reduced, but the processing becomes discontinuous and environmentally harmful

Engineering Contradiction:

Improvecohesiveness of attapulgite clayVSAvoidprocessing continuity

Core Design Contradiction:

Stability of the object's compositionVSProductivity

Solution Approach 1:

The invention extracts and removes the harmful cohesiveness and adhesion properties of the damp attapulgite clay through the special crushing cavity design, allowing continuous processing without pre-drying. The crushing cavities create controlled separation that eliminates the need to remove water beforehand, enabling continuous operation while handling high-moisture material.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention converts the harmful cohesiveness and adhesion of damp attapulgite clay into a beneficial feature by using the material's own properties during the crushing process. The special cavity design allows the cohesive material to be processed continuously without sticking to the tool, transforming what was previously a processing obstacle into an advantage for continuous operation.

Inventive Principle:

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

2Productivity

If jaw crusher is used to directly crush damp attapulgite clay, then processing is continuous, but the material adheres to the crushing tool and causes breakdown

Engineering Contradiction:

Improveprocessing continuityVSAvoidcrushing tool reliability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The invention converts the harmful adhesion property of damp attapulgite clay into a beneficial feature. The special crushing cavity design with specific geometric parameters allows the cohesive material to be processed continuously without sticking to the tool, transforming what was previously a harmful adhesion force into a controlled process feature that enables reliable continuous operation.

Inventive Principle:

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

Solution Approach 2:

The invention changes the geometric parameters of the crushing tool, specifically designing crushing cavities with optimized dimensions and shapes that prevent adhesion. By adjusting the cavity geometry, the tool can handle high-moisture material without the material sticking, thereby maintaining reliability during continuous operation.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If jaw crusher is used to crush attapulgite clay, then crushing occurs, but the material is only cut into cakes and does not meet size requirements

Engineering Contradiction:

Improvecrushing efficiencyVSAvoidpellet size precision

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The invention segments the crushing process into multiple stages within the crushing cavities, using progressively smaller cavity dimensions to achieve the desired pellet size. The segmented cavity structure allows for controlled size reduction from initial feeding to final product, ensuring precise size control rather than just cutting into cakes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention changes the geometric parameters of the crushing cavities to optimize the crushing action and achieve precise pellet sizing. By carefully selecting cavity dimensions, shapes, and arrangements, the tool can produce pellets within the required size range while maintaining high crushing efficiency.

Inventive Principle:

Principle #35Parameter changes

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 tool effectively crushes cohesive attapulgite clay into pellets of 5-20 mm size without adhesion, improving processing efficiency and maintaining the physical properties of the material, while adhering to environmental and energy conservation standards.

Implementation Method 1

enhance centrifugal separation of attapulgite pellets

Methodology Applied

Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS11465153B2Anti-adhesion crushing tool for crushing damp ores

Publication Date: 2022.10.11 CHENGDU UNIVERSITY OF TECHNOLOGY

AI summary

The present invention relates to an anti-adhesion crushing tool for crushing damp ores. The anti-adhesion crushing tool can effectively improve the current working environment in attapulgite crushing, and is beneficial to effectively improve the anti-adhesion properties of the attapulgite clay.