Conceptual design of a novel industrial-scale HTS reciprocating high gradient magnetic separator

Author

Hoffmann, Christian K. ; Keller, Karsten ; Hoffman, William C., Jr. ; Rey, Christopher M.

Author_Institution

DuPont Central R&D, Wilmington, DE, USA

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1225

Lastpage

1228

Abstract

Reciprocating magnetic separators are used in the purification of kaolin clay and titanium dioxide. Design parameters and fabrication details are reported for the high temperature superconducting (HTS) coil. The HTS coil is 0.7 m in length and has a 0.5 m inner diameter. The central operating magnetic field is a nominal 3.0 T with a design operating current of 100 A. In terms of combined size and magnetic field strength, this is one of the largest HTS magnets ever fabricated, possessing a stored energy > 0.400 MJ. The HTS magnet is conduction cooled via single-stage G-M cryocoolers with a nominal operating temperature of 30 K. The HTS conductor uses a stainless steel reinforced Bi-2223 material. Salient features and results of the electromagnetic and thermal analyses are discussed.

Keywords

bismuth compounds; clay; cooling; high-temperature superconductors; magnetic separation; stainless steel; superconducting coils; thermal analysis; titanium compounds; (BiPb)₂Sr₂Ca₂Cu₃O₁₀; 0.5 m; 0.7 m; 100 A; 3 T; 30 K; HTS conductor; HTS magnets; conceptual design; conduction cooling; design parameters; electromagnetic analyses; fabrication details; high gradient magnetic separator; high temperature superconducting coil; industrial-scale HTS; kaolin clay; operating magnetic field; reciprocating magnetic separators; salient features; single-stage GM cryocoolers; stainless steel reinforced Bi-2223 material; thermal analyses; titanium dioxide; Conducting materials; High temperature superconductors; Magnetic fields; Magnetic materials; Magnetic separation; Particle separators; Purification; Superconducting coils; Superconducting magnets; Titanium; Bi-222; conduction-cooled; high temperature superconducting; magnetic separator;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.830536

Filename

1325019