Grinder Using Induced Electric Fields for Carbon Nanotube Dispersion
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Solution Overview
Problem
The existing grinders for carbon nano fibers (CNFs) and carbon nano tubes (CNTs) face inefficiencies in grinding due to their high specific surface area and structural characteristics, leading to prolonged processing times and non-uniform dispersion, as they require multiple grinding operations to achieve the desired size and dispersed state.
Innovation Solution
A grinder utilizing induced electric fields with a cylindrical spike mill structure, equipped with protrusions and a power unit generating electric fields to align and grind conductive materials, combined with a chamber containing zirconia beads for efficient dispersion and grinding, allowing for adjustment of the grinding length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional grinding operations are used for CNFs and CNTs, then the materials can be ground to desired size, but the process requires multiple grinding operations and extended processing time
Solution Approach 1:
The patent replaces conventional mechanical grinding operations with an electric field-based system. The power unit generates electric fields that align conductive materials (CNFs and CNTs) perpendicular to the grinding unit, enabling single-pass grinding instead of multiple operations. This substitution of mechanical grinding with electric field alignment and cutting dramatically reduces process time while maintaining grinding uniformity.
2Productivity
If conventional grinding is applied to highly dispersive conductive materials, then the materials can be processed, but the directional grinding characteristics deteriorate grinding efficiency
Solution Approach 1:
The patent applies preliminary action by using the power unit to generate electric fields that align conductive materials in a perpendicular direction before the grinding operation occurs. This pre-alignment ensures that when the grinding unit rotates and cuts the materials, they are properly oriented for efficient and uniform grinding in a single pass, eliminating the directional grinding problems of conventional methods.
Solution Approach 2:
The patent replaces conventional mechanical grinding with an electric field-based alignment and cutting system. The power unit generates electric fields that orient the materials, and the rotating grinding unit with protrusions performs cutting rather than traditional friction-based grinding. This substitution resolves the directional grinding characteristics issue while improving both productivity and manufacturing precision.
3Stability of the object's composition
If multiple grinding operations are performed to achieve desired dispersion, then uniform dispersion can be obtained, but production time increases and process complexity increases
Solution Approach 1:
The patent replaces multiple sequential grinding operations with a single electric field-based grinding process. The power unit generates electric fields that align materials perpendicular to the grinding unit, and the rotating grinding unit with protrusions performs cutting and dispersion in one operation. This substitution maintains dispersion uniformity while significantly reducing process complexity and production time.
Solution Approach 2:
The patent uses preliminary electric field alignment to prepare conductive materials before grinding. By aligning materials perpendicular to the grinding unit through electric fields, the system ensures optimal orientation for single-pass grinding that achieves desired dispersion uniformity without requiring multiple operations, thereby reducing process complexity.
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
This approach improves grinding efficiency by aligning conductive materials perpendicular to the grinder, reducing the number of grinding processes and associated costs and time, while ensuring uniformity and efficient dispersion of CNFs and CNTs.
Implementation Method 1
a power unit disposed in the grinding unit to generate electric fields and attach the conductive materials to the grinding unit, wherein the conductive materials have directionality by the electric fields of the power unit
Implementation Method 2
The chamber may have a function of grounding the grinding unit
Data Source
AI summary
The present invention relates to a grinder using induced electric fields. The grinder comprises: a grinding unit on which a plurality of protrusions for cutting are disposed on an outer circumferential surface thereof; a power unit disposed in the grinding unit to generate electric fields and attach the conductive materials to the grinding unit; and a chamber disposed outside the grinding unit and comprising beads that disperse and grind the conductive materials attached to the grinding unit, wherein the conductive materials have directionality by the electric fields of the power unit.