| A rotary kiln, used for dead burning Salem magnesite in Burn
Standard Co, Salem sometimes had to be shut down due to ring
formation. To understand the chemical and physical characteristics
of such rings, samples collected from the rotary kiln, were
studied and the results have been reported briefly in this article.
The dead burning campaign of the rotary kiln, from which the
samples for investigation were collected, started on 2.1.1981 with
a feed of crude-mag and chrome powder, and continued with
crude-mag with or without mill scale. The iron oxide in the sinter
was 1.7-2.5 per cent. The results obtained are given below (Table I).
The kiln was shut down for heavy rear ring formation. After
cooling, samples were collected systematically, lengthwise, from the
front, middle and rear rings. Samples were collected from the
locations as shown in Fig. 1. The results of the chemical analysis
and the physical properties of the samples are given in Table II. |
