ASTM E279 – 97 Method for Determination of Abrasion Resistance of Iron Ore Pellets and Sinter by the Tumbler Test

Scope:

ASTM E279 – 97 test method covers a relative measure of the resistance of iron ore pellets and sinter to degradation by impact and abrasion using the Tumbler test.

Test Procedure:

Place the 11.3-kg (25-lb) sample into the tumbler drum. Rigidly fasten the door and rotate the drum at 24 6 1 rpm for a total of 200 revolutions. The tumbled material is removed and screened to determine the degradation.

FIGURE 1. Tumbler Test Apparatus

Specimen size:

1. Pellets-Use an 11.3 ± 0.23-kg (25 ±  0.5-lb) sample of 38.1 by 6.35-mm (11⁄2 by 1⁄4-in.) pellets dried to a constant weight of 105 to 110°C.

2. Sinter-Use a 11.3 ±  0.23-kg (25 ±  0.5-lb) sample of 50.8 by 9.51-mm (2 by 3⁄8-in.) sinter.

Data:

The sieve analysis after the tumbler test captured to the nearest 0.1 % as the percent on the 1⁄4-in. (6.3-mm) sieve and the percent passing the No. 30 (600-μm) sieve.