Recycling of abrasives from wasted slurry by superconducting magnetic
It is confirmed that the component technologies for magnetic separation have advanced well and many new applications of magnetic separation using superconducting magnets have been developing. It ...
Magnetic Separation
A new superconducting magnet system for high intensity magnetic separation, Proceedings, Electrical and Magnetic Separation and Filtration Technology, K.V.I., Antwerp, 1984. Google Scholar
Testing of a 5.5 T High-Gradient Superconducting Magnetic Separator
A solenoid superconducting magnet has a large high magnetic field area. The larger high-field area for separation leads to the high separation efficiency and the efficient processing capacity [], so the magnet uses a single-solenoid configuration.The superconducting wire used is made by Western Superconducting Technologies Co., Ltd., China.
High gradient magnetic separation using superconducting …
We aim to apply the superconducting bulk magnets to high gradient magnetic separation technique. Two bulk magnets are face-to-face arranged and a pipe stuffed magnetic filters composed of ferromagnetic wires is placed between the magnetic poles. We setup the magnetic separation system and test it using slurry mixed with hematite particles (Fe 2 ...
Superconducting magnetic separation technology
The basic characteristic of superconducting magnets is the ability to generate high magnetic fields using compact windings and essentially no power. Their basic advantage is to generate higher fields in configurations that are more open and provide more room for associated piping. The higher fields can be utilized to increase the effectiveness of separation, to separate more …
Technology of superconducting magnetic separation …
effluents by magnetic separation is performed by adding a certain proportion of iron salts. The treated effluent passes through a superconducting separator where the .flocs are retained in a matrix of steel wires. The efficiency of supraconducting high-gradient magnetic separation (HGMS) by this method exceeds 95%.
Magnetic separation using superconducting magnets
Since the 1970s, magnetic separation has been increasingly used for purification of liquids, such as heavy-metal ion removal from laboratory waste water, purification of kaolin clay in the paper-coating industry, waste water recycling in the steel industry, and recycling of glass grinding sludge in cathode-ray tube polishing factories. In the 1980s, large superconducting …
The application of superconducting magnetic separation in …
ABSTRACT The influence of magnetic matrices, magnetic field intensity, secondary and three section superconducting magnetic separation on the separation was studied in this paper. The magnetic field and flow field characteristics of elliptic cross-section matrix were studied in the elliptic coordinate system. The motion equations of the magnetic particles were …
Magnonic superconductivity | Science Advances
We uncover a superconducting state with partial spin polarization induced by a magnetic field. This state, which we call "magnonic superconductor," lacks a conventional …
Magnetic Separation Systems
To maximize the effective area of magnetic separation, central field homogeneity is typically +/- 10% over at least a 25cm length. ... The superconducting magnet is designed for a fast charge and discharge rate so time between back flushes is …
Optimum Coil-System Layout for Magnet-Driven Superconducting Magnetic …
This article discusses the optimum layout of coils of a superconducting magnet system for magnetic density separation (MDS). MDS is a novel separation technology that combines a vertical magnetic field gradient with a ferrofluid to separate mixtures of non-magnetic particles based on their mass density. The MDS process can separate more than two types of …
Superconductivity: Basics and Applications to Magnets
The main focus of the book is the application of superconducting magnets in accelerators, fusion reactors and other advanced applications such as nuclear magnetic resonance (NMR), magnetic resonance imaging (MRI), high-gradient magnetic separation (HGMS), and superconducting magnetic energy storage (SMES).
Pre-concentration of quartz from sea sand through superconducting …
ABSTRACT In this study, a superconducting high gradient magnetic separation (S-HGMS) technology was used to separate and extract quartz from sea sand. Under optimal conditions (i.e., a magnetic flow ratio of 0.085 T·s/m, slurry flow velocity of 400 ml/min, and pulp concentration of 40 g/L), the SiO2 grade increased from 79.45% of the raw material to 91.35% …
Superconducting pulsating high gradient magnetic …
Superconduction was firstly combined into pulsating high gradient magnetic separation (PHGMS) technology to improve its separation performance for ultrafine magnetic …
Study on industrial wastewater treatment using superconducting magnetic …
Superconducting magnetic separation is different from traditional treatments. Comparing to traditional treatment methods, it has some advantages, such as the lower investment, smaller area occupied, and shorter period of processing. Since the cryocooler cooled superconducting magnets are commercial available, it becomes easier and cheaper to ...
Superconducting Magnetic Separation | SpringerLink
Superconducting magnetic separation can be classified into high gradient superconducting magnetic separation and open gradient superconducting magnetic separation. (1) High gradient superconducting magnetic separation. When the working area of the magnet is filled with magnetic medium (such as steel wool), the steel wool is magnetized to form a ...
USE OF SUPERCONDUCTING MAGNETS IN MAGNETIC SEPARATION …
Well designed superconducting magnets seem to be especially promising for use as open gradient magnetic separators. Specific magnetic force densities in the region of 100 MN m−3, which are ...
Field-angle evolution of the superconducting and magnetic …
We experimentally determine the bounds of the magnetic-field-induced superconducting and magnetic phases near the crystalline b axis of uranium ditelluride (UTe …
Superconducting discs as permanent magnets for magnetic separation
Keywords: Superconducting discs; Magnetic seperation; Permanent magnets 1. Introduction This paper discusses, in general terms, ways in which high-T, superconducting permanent magnets can be introduced into magnetic separation. For many years magnetic separation has been extensively used by the minerals industry. ...
Numerical Simulation Study on the Capture and Recovery of …
Superconducting magnetic separation is an appropriate technique for capturing rare earth minerals using a magnetic matrix. In this paper, a fully coupled finite element model (FEM) was established to study the influence of various factors on the capture of rare earth minerals under a high-gradient superconducting magnetic field. In this model ...
Superconducting magnetic separation | IEEE Journals
Abstract: After a brief review of magnetic separator requirements, the major systems delivered to date are described and some possible future developments are outlined. Both open-gradient and matrix separators are considered. The advantages to be gained by using superconducting …
Thermal and electrical design of superconducting …
In this paper the focus is on thermal and electrical design aspects of a NbTi-based demonstrator magnet for magnetic density separation (MDS) that is being constructed at the University of Twente. MDS is a recycling technology that allows the separation of non-magnetic particles based on their mass density, using a vertical magnetic field gradient and a ferrofluid.
Design of a Conduction-Cooled Open Gradient Superconducting Magnetic …
The open gradient superconducting magnetic separation magnet comprised four saddle-shaped coils and an optimized iron yoke. The radial magnetic flux density was 1 T at a distance of 20 mm from the surface of the coil at an operating current of 120 A, resulting in a magnetic force density of 3.5*10 7 N/m 3, with a peak field in the coil of 4.82 ...
Magnetic separation using superconducting magnets
This paper discusses some of the fundamental characteristics of magnetic separation, the progress of superconductorization (use of superconducting magnets as field …
Developing high gradient magnetic separators for greener …
The magnetic separator is a crucial apparatus used in the magnetic separation process [13].It works by making different magnetic materials follow different paths to achieve the separation effect [47].The sorted ore is fed into the sorting space of the equipment and is primarily subjected to the combined action of magnetic and mechanical forces, with the ore grains …
Research of Superconducting Magnetic Separation in …
High gradient magnetic separation (HGMS) can separate ferromagnetic and paramagnetic particles from other solids, liquids or gases by using large magnetic field gradients. It has great merits to rapid purification of wastewater, the occurrence of small space, and no additional waste. The superconducting magnetic separation aimed to use
Separation of Copper-Molybdenum Flotation …
Separation of chalcopyrite from molybdenite is currently mainly carried out by flotation, but this process is costly because of the extensive use of inhibitors. This study briefly describes a 7.0T/100CGC low-temperature …
Magnetic Separation Equipment | SpringerLink
Magnetic separation equipment is widely used in the separation of magnetic minerals. Low-intensity magnetic separator is mainly used for the separation of minerals with specific magnetic susceptibility greater than 1 × 10 −6 m 3 /kg, such as magnetite, vanadium titano-magnetite, pyrrhotite, and other minerals. Medium-intensity magnetic separator is …
Removal of phosphate from wastewater by using open …
Superconducting magnetic separation technology is not only useful for the removal of magnetic contaminants from sewage, but also for the separation of non-magnetic materials, such as metal ions and phosphate [21], [22]. Owing to the high separation speed, compact process, low cost and high separation efficiency, the technique of superconducting ...
Design of a Conduction-Cooled Open Gradient …
In this article, an open gradient superconducting magnetic separation magnet conduction cooled by a two-stage Gifford McMahon (GM) cryocooler was designed and developed. The open …