Cereal Mill Diamond-Coated Millstone for Clog-Free Grinding
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Solution Overview
Problem
Natural millstones in grain mills become clogged over time, leading to inconsistent grinding quality and difficulty in cleaning, which affects the grinding result.
Innovation Solution
The use of a diamond or sapphire-coated millstone, preferably with a thickness of less than 3 mm and roughness between 10 µm and 100 µm, ensures easy cleaning and consistent grinding quality by providing a self-cleaning surface and fine grinding capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a natural millstone is used, then the grinding function is provided, but the pores become clogged over time leading to inconsistent quality and cleaning difficulty
Solution Approach 1:
The invention changes the surface parameters of the millstone by applying a diamond or sapphire coating with specific roughness (10-100 μm) and thickness (less than 3 mm), transforming the natural porous surface into a controlled, non-porous coated surface that prevents clogging while maintaining grinding effectiveness
Solution Approach 2:
The invention uses a composite structure combining a natural or artificial millstone base with a diamond or sapphire coating layer, creating a multi-layer material system that combines the grinding capability of the base with the self-cleaning and consistency properties of the coating
2Reliability
If a natural millstone is used, then the grinding function is provided, but the millstone is difficult to clean
Solution Approach 1:
The diamond or sapphire coating provides self-cleaning properties through its specific surface roughness (10-100 μm), which prevents material from adhering to the surface, allowing the millstone to maintain itself without extensive cleaning intervention
3Reliability
If a diamond or sapphire coating is applied, then consistent grinding quality and easy cleaning are achieved, but the manufacturing complexity increases
Solution Approach 1:
The invention specifies precise parameter ranges for the coating (roughness: 10-100 μm, thickness: less than 3 mm) that balance manufacturing feasibility with performance requirements, enabling consistent quality without excessive manufacturing 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
The diamond or sapphire coating maintains a consistent grinding result and prevents contamination of the ground material due to its durability and controlled roughness, enhancing the grinding efficiency and cleanliness of the mill.
Implementation Method 1
the diamond or sapphire layer has a roughness between 10 μm and 100 μm, whereby a particularly fine grinding result can be achieved
Implementation Method 2
a motor which drives a rotor is arranged on the base part, wherein the grain mill has an annular millstone... the motor generates an air stream by means of which the grain introduced into the housing is accelerated in rotation against the millstone
Implementation Method 3
the motor generates an air stream by means of which the grain introduced into the housing is accelerated in rotation against the millstone
Data Source
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AI summary
The invention relates to a grain mill (10) with a housing (20) having a longitudinal axis (1G), which has a wall (21), a bottom part (22) and a lid part (23), wherein an inlet opening (24) is arranged in the lid part (23), wherein a motor (30) is arranged on the bottom part (22) which drives a rotor (40), and wherein the grain mill (10) has an annular millstone (50), wherein the millstone (50) has at least a section of a diamond or sapphire layer (52).