Granular Material Analysis via X-Ray Puck Compaction
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Solution Overview
Problem
Current slurry analyzers face challenges in accurately measuring the characteristics of fine particles in mineral processing due to varying solid-to-liquid ratios and interference from salts, particularly when operating in conjunction with spirals at wash plants.
Innovation Solution
The method involves compacting granular material from slurry into pucks, irradiating them with X-Ray radiation, and comparing the X-ray transmission with a reference material to compute particle characteristics, such as average density, using a processing unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If slurry analyzers use electrical conductivity measurement to monitor solid-to-liquid ratio and density, then measurement capability is provided, but measurement precision deteriorates due to salt interference and varying solid-to-liquid ratios
Solution Approach 1:
The invention extracts the granular material from the slurry by filtering it out, then compacts it into a puck form. This separates the measurement target from the interfering slurry environment (liquid and salts), allowing X-ray measurement without salt interference while maintaining the ability to analyze the original material characteristics
Solution Approach 2:
The invention changes the physical state and form of the granular material from loose slurry particles to a compacted puck with standardized density and geometry. This parameter change enables consistent X-ray transmission measurements by eliminating the variability caused by different solid-to-liquid ratios in slurry
2Adaptability or versatility
If slurry analyzers operate with varying solid-to-liquid ratios, then slurry processing flexibility is maintained, but measurement precision deteriorates due to changing density conditions
Solution Approach 1:
The invention segments the measurement process into two independent stages: first, the slurry is processed with varying solid-to-liquid ratios as needed; second, the granular material is separated and compacted into standardized pucks for measurement. This segmentation allows slurry processing flexibility to be maintained while measurement precision is ensured through standardized sample preparation
Solution Approach 2:
The invention performs preliminary action by compacting the granular material into standardized pucks before X-ray measurement. This pre-preparation step ensures that regardless of the original slurry's solid-to-liquid ratio, the measurement sample has consistent density and geometry, thereby ensuring measurement precision
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 precise analysis of granular material characteristics, enabling effective process adjustments and improving overall product recovery by overcoming the limitations of existing measurement systems.
Implementation Method 1
irradiating said pucks with X-Ray radiation and detecting X-ray transmission through said one or more irradiated pucks
Data Source
AI summary
A method of analysing granular material in a slurry, the method comprising: compacting the granular material in the slurry to form one or more pucks; irradiating said pucks with X-Ray radiation and detecting X-ray energy transmitted through said one or more irradiated pucks; irradiating a reference material with X-Ray radiation, said reference material having known material characteristics and detecting X-ray energy transmitted through said reference material; comparing X-ray energy transmission through said one or more pucks with the reference material to compute, using a processing unit, one or more particle characteristics of the granular material in the one or more pucks.