Spring-Loaded Ore Comminuting Device for Wear Reduction
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Solution Overview
Problem
Conventional ore comminution methods, particularly using ball mills, are inefficient, lead to significant wear, contamination, and high energy consumption, and are not suitable for processing slag due to its brittle and hard structure, while also posing health risks to miners from dust exposure.
Innovation Solution
A device with a first comminuting means comprising two movable comminuting elements that form a comminuting space, utilizing accelerating elements and a spring mechanism to manage overloading and reduce wear, allowing for effective comminution of ore and slag with minimal energy consumption and reduced dust exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If ball mills are used for ore comminution, then ore can be ground to desired fineness, but the grinding cylinder weight must be greatly increased to withstand ball impacts
Solution Approach 1:
The patent applies dynamics by making the grinding cylinder rotate at high speeds (500-2000 rpm) to generate centrifugal force that accelerates the balls, replacing the need for a heavy static structure. The rotating system dynamically generates the necessary crushing force through centrifugal acceleration rather than relying on static weight.
Solution Approach 2:
The patent replaces the traditional mechanical impact system (heavy balls dropping under gravity) with a centrifugal field system. The rotating cylinder creates a centrifugal environment where balls are accelerated along the rotation direction, substituting gravitational impact with centrifugal force for ore comminution.
2Productivity
If iron balls are used in ball mills, then ore can be crushed effectively, but the balls and grinding cylinder wear quickly and require frequent replacement
Solution Approach 1:
The patent changes the physical parameters of the comminution process by using high-speed rotation (500-2000 rpm) to generate intense centrifugal forces that dramatically increase the acceleration and impact energy of the balls. This parameter change enables effective crushing of hard materials like slag without requiring excessively heavy or numerous balls, thereby reducing wear on both balls and cylinder.
Solution Approach 2:
The rotating motion creates periodic acceleration and impact cycles as balls are carried around the cylinder and repeatedly strike the ore. This periodic action maintains continuous comminution efficiency while distributing wear over time rather than through continuous static contact.
3Manufacturing precision
If multiple ball mills are connected in series, then ore can be comminuted to desired fineness, but energy consumption increases significantly
Solution Approach 1:
The patent merges the functions of multiple ball mills into a single high-speed rotating cylinder system. By combining the comminution stages into one intensified process with high centrifugal acceleration, the system achieves the same fineness that would otherwise require multiple sequential mills, thereby consolidating energy input into a single efficient operation.
Solution Approach 2:
The patent changes the operational parameters by increasing rotation speed to 500-2000 rpm, which generates centrifugal forces that dramatically enhance the comminution efficiency per unit of energy input. This parameter change allows a single mill to perform the work of multiple traditional mills, reducing total energy consumption while achieving the desired ore fineness.
4Productivity
If conventional crushers are used for preliminary ore crushing, then ore can be reduced to smaller size, but dust exposure and environmental damage increase
Solution Approach 1:
The patent replaces traditional mechanical crushing systems that generate significant dust with a centrifugal field-based comminution system. The high-speed rotating cylinder creates a contained environment where centrifugal force accelerates balls to crush ore with minimal dust generation, substituting open mechanical impact with a more controlled centrifugal process.
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 enables efficient comminution of ore and slag with reduced wear, energy efficiency, and enhanced safety by minimizing dust exposure, effectively addressing the limitations of traditional methods and enabling the processing of materials that were previously difficult to handle.
Implementation Method 1
at least one of said comminuting elements comprises a functional connection with a spring means, wherein the spring means is formed in such a way, that it mounts the comminuting element being in functional connection with variably in the direction of the other comminuting element
Implementation Method 2
one or more accelerating elements, in particular protrusions, are provided on at least one of the comminuting elements and accelerating and comminuting the ore to be comminuted by the rotation of one of the two comminuting elements
Data Source
AI summary
The invention regards to a device for comminuting ore and/or slag, which comprises an ore feed unit for feeding ore to be comminuted to a first comminuting means, the first comminuting means being composed of at least two comminuting elements that can be moved relative to each other, which elements form at least one comminuting space for the ore to be comminuted with each other such that, by a relative movement in the form of a rotation around the rotational axis of at least one of the two comminuting elements, the ore to be comminuted is pulverized in that one or more accelerating elements, in particular protrusions, are provided on at least one of the comminuting elements, said accelerating elements being arranged in particular on the end face of one of the two comminuting elements and accelerating and comminuting the ore to be comminuted by the rotation of one of the two comminuting elements,and wherein at least one of the two comminuting elements comprises a functional connection with a spring means, wherein the spring means is formed in such a way, that it mounts the comminuting element being in functional connection with variably in the direction of the other comminuting element.