MagMill{trademark} prototype testing

Conference · Sat Jul 01 04:00:00 EDT 2000

OSTI ID:20034311

Oder, R R; Brandner, E D; Jamison, R E

The authors report results of testing two raw coals, Lower Kittanning and Upper Freeport from north central Pennsylvania; the testing was done in a beta prototype 1 1/2 ton per hour (tph) MagMill{trademark} (patent pending) at the pilot plant facilities of Bradley Pulverizer Company in Allentown, PA. The prototype consists of a ParaMag{trademark} magnetic separator retrofitted to a 3,000 Lb/Hr Hercules air swept fing/roller pilot mill. For the runs reported here, the mill-product fineness varied between 70% and 80% finer than 200 mesh. The mill-product coal exhibited significant reductions in ash, sulfur, and LbSO{sub 2}/MBtu at Btu recoveries up to 94%. Recoveries of mercury, arsenic, and selenium for the two coals ranged from 33 to 71% of that in the feed on an equal Btu basis. The mill power draw was reduced up to 26% while the mill throughput was simultaneously increased by up to 12%.

• Research Organization: EXPORTech Co., Inc., New Kensington, PA (US)
• Sponsoring Organization: Department of Energy; Ben Franklin Technology Center; Electric Power Research Institute
• DOE Contract Number: FG05-94ER81764
• OSTI ID: 20034311
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
BITUMINOUS COAL
COAL PREPARATION
COMMINUTION
DEASHING
DEMETALLIZATION
DESULFURIZATION
EXPERIMENTAL DATA
MAGNETIC SEPARATORS
PERFORMANCE TESTING
PULVERIZERS