KALSİTİN DİK ve YATAY KARIŞTIRMALI DEĞİRMENDE ÖĞÜTÜLMESİNDE ÖĞÜTME YARDIMCISININ ETKİSİNİN İNCELENMESİ

Year 2018, Volume: 7 Issue: 2, 838 - 847, 20.07.2018

Serkan Çayırlı , Hasan Serkan Gökçen

https://doi.org/10.28948/ngumuh.445283

Cited By: 2

Abstract

Bu
çalışmada, kalsitin dik ve yatay konumlandırılabilen karıştırmalı bilyalı
değirmende kuru öğütülmesinde öğütme yardımcısının etkisi incelenmiştir.
Değirmenin dik ve yatay konumundan elde edilen sonuçlar tane boyutu (d₅₀
ve d₉₀) göz önünde bulundurularak değerlendirilmiştir. Deney
sonuçlarından, dik konum için d₅₀ ve d₉₀ boyutları öğütme
yardımcısız yapılan deneylerle karşılaştırıldığında 2000 g/ton öğütme
yardımcısı kullanılmasıyla d₅₀ boyutunda %40, d₉₀
boyutunda ise %60 oranında bir iyileştirme sağlanabileceği görülmüştür. Yatay
konum için ise; d₅₀ boyutunda %45, d₉₀ boyutunda %62
oranında bir iyileştirme yapılabileceği anlaşılmıştır. Ayrıca, öğütme
yardımcılı (2000 g/ton) ve öğütme yardımcısı kullanılmadan (0 g/ton) yapılan
deneylerden elde edilen ürünlerin taramalı elektron mikroskobu (SEM)
görüntüleri çekilerek topaklanma durumları tespit edilmiştir.

Keywords

Dik ve yatay karıştırmalı değirmen, öğütme yardımcısı, kalsit, SEM

INVESTIGATION OF THE EFFECT OF GRINDING AID ON CALCITE GRINDING IN VERTICAL AND HORIZONTAL STIRRED BALL MILL

Abstract

In
this study, the effect of grinding aid on dry calcite grinding using vertically
and horizontally orientable stirred ball mill was investigated. The results
obtained from the vertical and horizontal orientation of the mill were
evaluated based upon the particle size (d₅₀ and d₉₀). For
vertical orientation, experimental results indicated that the d₅₀
and d₉₀ sizes can be improved by 40% and 60%, respectively by using
grinding aid at 2000 g/t when compared to no aid condition. For horizontal
orientation, it was understood that improvement in d₅₀ size by 45%
size and improvement in d₉₀ size by 62% could be obtained. In
addition, agglomeration phenomena were determined by scanning electron
microscope (SEM) images of products obtained from the presence (2000 g/t) and
absence (0 g/t) of grinding aid.

Keywords

Vertical and horizontal stirred ball mill, grinding aid, calcite, SEM

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