Magnetic Matrix With Corrugated Expanded Steel Sheets
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Solution Overview
Problem
Current magnetic separators face limitations in magnetic field intensity and gradient, leading to inefficient separation of ultrafine particles, clogging issues, and reduced commercial value of ore due to insufficient magnetic field strength and difficulty in cleaning the matrices.
Innovation Solution
A magnetic matrix with corrugated expanded steel sheets inserted between grooved plates, aligned in a ridge-valley configuration, allowing increased magnetic field intensity up to 18,000 Gauss and gradients up to 4000 Gauss/mm, while facilitating easy cleaning and reducing clogging risks by providing extended collecting edges and improved pulp flow management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the gap between grooved plates is reduced to increase magnetic field intensity, then magnetic field intensity is improved, but particle passage capability deteriorates
Solution Approach 1:
The invention transitions from a two-dimensional plate surface to a three-dimensional corrugated structure by inserting corrugated expanded steel sheets between the grooved plates. This adds vertical dimension (height of corrugations) and creates multiple levels of collecting edges, thereby increasing magnetic field intensity and collecting surface area without reducing the horizontal gap between plates, maintaining particle passage capability.
Solution Approach 2:
The corrugated expanded steel sheets are nested between the grooved plates, with the corrugations fitting into the gap space. This nesting arrangement allows the collecting edges to extend into the gap region, increasing the effective collecting length and magnetic field intensity while maintaining the original plate spacing and particle passage capability.
2Force
If the magnetic matrix opening is reduced to increase magnetic gradient, then magnetic gradient is improved, but pulp flow capability deteriorates
Solution Approach 1:
The magnetic matrix is segmented into multiple collecting edges formed by the corrugations of the expanded steel sheets. Each corrugation creates additional collecting edges that increase the total collecting surface area and magnetic gradient, while the segmented structure maintains open channels for pulp flow, preventing clogging and maintaining flow capability.
3Force
If flattened expanded steel sheets are used to increase magnetic field, then magnetic field intensity is improved, but cleaning capability deteriorates
Solution Approach 1:
The invention uses corrugated (curved/wavy) expanded steel sheets instead of flattened sheets. The corrugated profile creates a self-cleaning effect where the curved surfaces prevent material buildup and facilitate easy removal of accumulated particles, thereby maintaining both high magnetic field intensity and excellent cleaning capability.
4Productivity
If the collecting edge length is extended to improve particle capture, then separation efficiency is improved, but device complexity increases
Solution Approach 1:
The invention changes the geometric parameters of the expanded steel sheets by using corrugated profiles with specific heights and wave patterns. This parameter optimization extends the collecting edge length and improves separation efficiency while maintaining a simple, standardized structure that does not significantly increase device 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
Enhances the extraction of ultrafine particles with lower magnetic susceptibility, reduces tailings and water waste, and increases the quality and quantity of recoverable magnetic particles, ensuring higher operational efficiency and reduced downtime due to improved cleaning capabilities.
Implementation Method 1
Due to the pole-induced magnetic field, the magnetizable particles of the ore pulp dumped onto the magnetic matrices are attracted and trapped in the plates of these matrices
Implementation Method 2
Due to the pole-induced magnetic field, the magnetizable particles of the ore pulp dumped onto the magnetic matrices are attracted and trapped in the plates of these matrices
Data Source
AI summary
The invention relates to a magnetic matrix for high intensity magnetic separator which is fed with a pulp containing magnetic and non-magnetic particles, the magnetic matrix (8) comprising a series of grooved metal plates (7) on both sides thereof, the grooved plates being arranged in rows parallel to and spaced apart from each other from the same spacing (6) within a housing, each face of each metal grooved plate (7) having the ridges aligned with the valleys of the face facing it of the grooved plate (7), and a corrugated expanded sheet (12) is disposed at each spacing (6) between adjacent grooved plates (7), with corrugations of the corrugated expanded sheets (12) accompanying the ridge-valley alignments of the respective grooved plates (7).