Compact Ore Separation Chamber With Air Pulsing Jigging
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Solution Overview
Problem
Existing jig concentrators for mineral processing are large, consume significant water and electricity, and are confined to immobile land-based operations due to their size and mechanical complexity.
Innovation Solution
A compact separation apparatus with a chute that deposits ore near the bottom of the chamber, utilizing a permeable separator member and fluid pulsing mechanism to separate lighter and heavier particles based on specific gravity, allowing for a smaller chamber design and reduced energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If large tanks are used to house several cubic meters of ore and water, then sufficient space for particle settling is achieved, but the overall device size becomes very large
Solution Approach 1:
The patent changes the orientation of the settling chamber from a horizontal large-volume configuration to a vertical configuration. The separator is inclined at an angle to the horizontal, allowing particles to settle along the inclined surface rather than requiring a large horizontal settling area. This dimensional reorientation reduces the overall footprint and tank volume while maintaining adequate settling space.
2Quantity of substance
If a large volume of water is maintained in the tank, then sufficient fluid for pulsing is available, but a very large pump is required to pulsate the water
Solution Approach 1:
The patent changes the physical parameters of the pulsing mechanism by replacing a large mechanical pump with an air pulsing system. Compressed air is introduced through spargers at the bottom of the chamber, creating gas bubbles that rise and displace water, producing the pulsing action. This parameter change from mechanical to pneumatic pulsing significantly reduces the power requirements while maintaining adequate water volume for separation.
3Force
If a significantly large pulsing mechanism is installed to pulse water in large tanks, then sufficient pulsing force is provided, but electricity consumption increases significantly
Solution Approach 1:
The patent replaces the mechanical pulsing system (large pump and drive mechanism) with a pneumatic system. Compressed air serves as the energy source, eliminating the need for a large electric motor and mechanical transmission components. The air bubbles provide the necessary pulsing force through buoyancy and pressure differential, significantly reducing electricity consumption while maintaining effective particle separation.
4Productivity
If the apparatus is designed with large dimensions to process high throughput, then processing capacity is sufficient, but the device becomes immobile and confined to land-based operations
Solution Approach 1:
The patent divides the separation system into modular components: a compact separation chamber, an independent air supply system, and separate feed and discharge mechanisms. This segmentation allows the apparatus to be configured in smaller units that can be deployed in mobile applications such as vessels or portable processing plants, while maintaining effective processing capacity through optimized vertical space utilization and efficient air pulsing.
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 apparatus achieves efficient mineral separation with reduced dimensions, enabling portability and mobile applications, while minimizing energy and water usage, and enhancing processing throughput.
Implementation Method 1
As the particles are exposed to gravitational force whilst suspended within the water, heavier particles (with a higher specific gravity) settle faster than lighter particles resulting in a concentration of heavier particles at the bottom on the jig bed.
Implementation Method 2
Particles of ore are introduced to a so-called jig bed, known for example from US-A-1,327,537 and US-A1,225,158, where they are thrust upward by a pulsing fluid body.
Data Source
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AI summary
A separation apparatus and method for separating ore is provided. The separation apparatus (10) includes a separation chamber (12) and is configured to be utilised with a fluid pulsing mechanism (32) for operatively pulsating a fluid through ore deposited in the chamber resulting in the migration of generally lighter ore particles toward an upper region (25) of the chamber and for generally heavier particles to migrate toward a bottom region (14) of the chamber (12). The ore is deposited by means of a chute (38) in the bottom region (14) of the chamber (12) and the lighter ore particles may then be extracted from the chamber through a first chamber outlet (24) while the heavier particles may be extracted through a second chamber outlet (28).