Mineral Separation Table for Gold Recovery With Tailored Vibrations
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Solution Overview
Problem
Existing mineral separation tables in the mining industry rely on single pulse or sinusoidal vibrations, which are inefficient in separating target particles from discard particles based on specific gravity, leading to loss of valuable minerals like gold in tailings.
Innovation Solution
A mineral separation table that vibrates using tailored frequencies, including a planar surface angled at specific angles and driven by a Voice Coil Motor, employing vibration profiles with primary half sine waves and high-frequency sine waves to separate particles by specific gravity, with a controller adjusting the vibration patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If single pulse vibration or sinusoidal vibration is used in mineral separation tables, then the device complexity is reduced, but the separation efficiency and productivity deteriorate
Solution Approach 1:
The patent implements dynamic vibration control by switching between multiple vibration modes (single pulse, sinusoidal, and combined modes) depending on the separation requirements. The system dynamically adjusts vibration parameters including frequency, amplitude, and duty cycle to optimize separation efficiency for different mineral types and feed conditions, resolving the contradiction between simple operation and high productivity
Solution Approach 2:
The patent changes vibration parameters (frequency, amplitude, duty cycle) to optimize separation performance. By adjusting these parameters, the system achieves high separation efficiency without requiring complex additional hardware, thus improving productivity while maintaining reasonable device complexity
2Loss of substance
If traditional vibration patterns are used, then the ease of operation is maintained, but the loss of valuable minerals increases
Solution Approach 1:
The patent employs periodic vibration patterns with specific duty cycles (ratio of vibration time to total cycle time) to enhance mineral separation. The periodic action creates favorable conditions for particle stratification and separation based on specific gravity, reducing gold loss in tailings while maintaining ease of operation through automated control
Solution Approach 2:
The patent utilizes mechanical vibration with tailored frequency and amplitude characteristics to improve separation efficiency. By optimizing vibration parameters, the system enhances the recovery of valuable minerals without requiring complex manual intervention, thus reducing substance loss while maintaining operational simplicity
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
Enhances the separation efficiency of target materials like gold from tailings by stratifying particles based on specific gravity, improving the recovery of valuable minerals and reducing waste.
Implementation Method 1
an electric motor, such as a Voice Coil Motor (VCM) that is connected to the mineral separation table. The electric motor is configured to vibrate the mineral separation table
Implementation Method 2
The principle behind their operation involves the stratification of particles based on their density, allowing heavier minerals to settle while lighter dust particles are carried away
Implementation Method 3
the vibration corresponds to either a first vibration profile, a second vibration profile or a third vibration profile. The first vibration profile is defined by a plurality of first wave forms each having a primary half sine wave followed by a pause
Data Source
AI summary
Separating target particles from discard particles in an aggregate using tailored frequencies in a mineral separation table is described. The separation table comprises a planar surface angled in a −z direction along the +x axis at an angle α and in the −z direction along the +y axis at an angle β. A motor is responsive to a first or second vibration wave train received by a controller. The motor vibrates the table with the vibration wave train thereby separating target from discard particles by differences in specific gravity. The first vibration wave train is a plurality of primary half sine waves each followed by a pause. The second vibration wave train is the plurality of the primary half sine waves and a plurality of high frequency sine waves having a frequency that is higher than the primary half sine wave.