Ring Ball Mill Vitrification to Prevent Inorganic Powder Sticking
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Solution Overview
Problem
The mechanical milling method using a planetary ball mill for producing sulfide solid electrolyte materials results in the vitrified inorganic material sticking to the inner peripheral surfaces, requiring frequent maintenance to remove the adhered material, which hampers production efficiency.
Innovation Solution
A method involving a ring ball mill mechanism that applies shearing stress and compressive stress to a mixed powder of inorganic compounds, combined with a dispersion step, to vitrify and produce inorganic material efficiently, utilizing a ring ball mill mechanism with ceramic components to prevent sticking and enhance production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a planetary ball mill is used for mechanical milling to vitrify inorganic material, then the vitrification process can be achieved, but the vitrified inorganic material sticks to the inner peripheral surface of the rotating cylinder, requiring frequent maintenance
Solution Approach 1:
The patent introduces a coating layer as an intermediary substance between the vitrified inorganic material and the inner peripheral surface of the rotating cylinder. This coating layer prevents direct adhesion of the vitrified material to the mill surface, thereby eliminating the need for frequent maintenance while preserving the vitrification quality. The coating acts as a mediator that allows the vitrification process to proceed effectively without the harmful sticking effect.
2Manufacturing precision
If a planetary ball mill is used for mechanical milling to vitrify inorganic material, then the vitrification process can be achieved, but frequent maintenance is required to remove adhered material
Solution Approach 1:
The patent introduces a coating layer as an intermediary substance between the vitrified inorganic material and the inner peripheral surface of the rotating cylinder. This coating layer prevents direct adhesion of the vitrified material to the mill surface, thereby eliminating the need for frequent maintenance while preserving the vitrification quality. The coating acts as a mediator that allows the vitrification process to proceed effectively without the harmful sticking effect.
3Device complexity
If the inner peripheral surface of the rotating cylinder is not coated, then the device structure remains simple, but the vitrified inorganic material adheres to the surface, reducing production efficiency
Solution Approach 1:
The patent introduces a coating layer as an intermediary substance between the vitrified inorganic material and the inner peripheral surface of the rotating cylinder. This coating layer prevents direct adhesion of the vitrified material to the mill surface, thereby eliminating the need for frequent maintenance while preserving the vitrification quality. The coating acts as a mediator that allows the vitrification process to proceed effectively without the harmful sticking effect.
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 allows for the high-efficiency production of vitrified inorganic materials from mixed powders without the need for frequent maintenance, as the ceramic components prevent adherence to the mill surfaces, thereby improving production efficiency compared to traditional planetary ball mill methods.
Implementation Method 1
a vitrification step of applying shearing stress and compressive stress to a mixed powder of a plurality of kinds of inorganic compound powders by using a ring ball mill mechanism to vitrify at least a part of the mixed powder
Implementation Method 2
a gas feeding mechanism that is attached to a lower side with respect to the ring ball mill mechanism in the container and feeds gas toward an upper part of the inside
Data Source
AI summary
A method of producing an inorganic material (S10) according to the present invention includes a vitrification step (S12) of applying shearing stress and compressive stress to a mixed powder (MP) of a plurality of kinds of inorganic compound powders by using a ring ball mill mechanism (70) to vitrify at least a part of the mixed powder (MP); and a dispersion step (S13) of dispersing the vitrified mixed powder (MP) after the vitrification step (S12), where a combined step of the vitrification step (S12) and the dispersion step (S13) is performed a plurality of times to obtain a vitrified inorganic material powder from the mixed powder.