Inner Surface Magnetic Drum Axial Separation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional permanent magnetic separators have limited separation efficiency and yield due to fixed surface field strength and gradient, short residence time, and non-adjustable angles, leading to poor separation of materials with different specific susceptibilities.
Innovation Solution
A device utilizing a permanent magnetic arched groove with an inner surface field strength and gradient for axial separation, where materials flow through a rotating separation drum with adjustable field strength and angle, allowing substances with different susceptibilities to be separated based on their specific properties without auxiliary devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If materials are fed on the outer surface of a permanent magnetic drum, then the residence time is short and adsorptive capacity is large, but the separation effect is poor
Solution Approach 1:
The patent inverts the conventional feeding approach by feeding materials axially onto the inner surface of the rotating drum rather than onto the outer surface. This inversion allows materials to contact the magnetic field from the inside, increasing residence time and improving separation effect while maintaining high productivity through continuous axial flow.
Solution Approach 2:
The patent transitions from radial contact (outer surface feeding) to axial contact (inner surface feeding), changing the dimension of material-drum interaction. This dimensional change enables materials to traverse the entire drum length, maximizing contact time with the magnetic field and improving separation efficiency.
2Manufacturing precision
If materials are fed under the outer surface of a permanent magnetic drum, then the separation effect is good, but the yield is low and object product runs off
Solution Approach 1:
Instead of feeding under the outer surface, the patent feeds materials axially onto the inner surface of the drum. This inversion maintains good separation effect through prolonged axial contact while preventing product run-off by containing materials within the drum's internal structure during the separation process.
Solution Approach 2:
The patent nests the material flow path within the drum structure itself, using the drum's internal cavity as the separation chamber. This nesting ensures materials remain contained during processing, preventing run-off while maintaining efficient separation through the magnetic field.
3Productivity
If the included angle between the system and the plane is nonadjustable, then the structure is simple, but the capacity for treating materials is poor and residence time is short
Solution Approach 1:
The patent introduces an adjustable inclination angle mechanism that allows the drum to be tilted at different angles relative to the horizontal plane. This dynamic adjustment optimizes material residence time and treating capacity for different material properties and processing requirements, while the adjustment mechanism maintains reasonable structural complexity.
4Adaptability or versatility
If the surface field strength and gradient are fixed values, then the device is simple, but the range of materials to be selected is very limited
Solution Approach 1:
The patent employs adjustable field strength and gradient parameters through variable speed rotation of the drum and adjustable inclination angles. By changing these parameters, the system can effectively separate different types of materials with varying magnetic properties, significantly expanding the range of treatable materials while maintaining manageable 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
This approach enhances separation efficiency and yield by increasing contact time and adjusting field strength and angle, reducing miss selection and improving recovery rates, and allows for a broader range of material separation, including metals and nonmetals.
Implementation Method 1
under the action of the inner surface field strength and the gradient of the permanent magnetic arched groove 1, materials with higher specific susceptibility are adsorbed on the rotating separation drum 2
Implementation Method 2
adsorbing materials to be selected that axially flow through the inner surface field strength and the gradient area of a rotating separation drum 2 by using the energy on the inner surface of a fixed permanent magnetic arched groove 1
Implementation Method 3
Under the action of gravity, materials with lower specific susceptibility axially pass through a selected material channel 13 including the separation drum 2 and the outer surface of an arched groove of a field strength gradient regulating mechanism 5, and flow out of a low magnetic material outlet 9
Implementation Method 4
because of the open ring in the upper part of the permanent magnetic arched groove 1, the materials with higher specific susceptibility adsorbed on the separation drum 2 directly fall into a high magnetic material groove 7 under the action of its gravity
Data Source
AI summary
The present invention discloses a method and a device for axial separation by the inner surface of a permanent magnetic arched groove, comprising: adsorbing materials to be selected that axially flow through the inner surface field strength and the gradient area of a rotating separation drum (2) by using the energy on the inner surface of a permanent magnetic arched groove (1); wherein materials with lower specific susceptibility pass through a selected material channel (13) and flow out of a low magnetic material outlet (9); materials with higher specific susceptibility are adsorbed on the rotating separation drum (2) and fall into a high magnetic material groove (7) under the action of its gravity; and materials with higher specific susceptibility flow through a high magnetic material outlet (8) and then are collected; thereby various materials with different specific susceptibilities can be separated.