Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Coal Transport Using Permanent Magnet Levitation.

Authors
Poland-AP; Lombardi-JA
Source
Int'l Symp on Mine Mechanization & Automation 1991 2:11-13to11-24
Link
NIOSHTIC No.
10011753
Abstract
The U.S. Bureau of Mines is developing alternative haulage systems that will meet the needs of future high-production longwalls without compromising safe working conditions. By using an entirely empirical approach and today's permanent magnet materials, neodymium- iron-boron and ceramic 5 iron oxide, a system concept has been formulated and designed. Two systems that transport coal in magnetically levitated containers were modeled. One sytem operates in the attractive field mode, the other in the repulsive field mode. Both of the proposed systems use a combination of permanent magnet levitation and low-pressure pneumatic propulsion. The systems are expected to operate both safely and efficiently. Operation in a totally enclosed pipe also minimizes dust and gas problems typical of conveyor haulage of coal. Current efforts are focusing on completion of bench-scale models that will be used to assess system operating parameters and economics.
Publication Date
19910101
Document Type
OP;
Fiscal Year
1991
NTIS Accession No.
NTIS Price
Identifying No.
OP 151-91
NIOSH Division
DRC;
Source Name
Int'l Symp. on Mine Mechanization & Automation, V. 2, Colorado Sch. Mines, 1991, PP. 11-13 to 11-24
State
CO;
TOP