Çeneli Kırıcıda Ufalanan Kromitlerin Tane Sekil Karakterizasyonu

Yıl 2008, Cilt: 21 Sayı: 1, 103 - 123, 30.06.2008

Adem Taşdemir , Bahri Öteyaka Hüseyin Özdağ

Öz

Bu calısmanın amacı, ufalanmıs minerallerin tane seklini kantitatif olarak karakterize etmek ve tane sekli uzerine cevher olusum tipi ve tane boyutunun etkisini arastırmaktır. Bu amac doğrultusunda, goruntu analiz tekniği kullanılarak tane sekli yuvarlaklık, puruzluluk ve uzunluk oranı tanımlarıyla karakterize edilmistir. Tanelerin kantitatif karakterizasyonu Leco 2001 Otomatik goruntu analizörü kullanılarak gerceklestirilmistir. Ufalama aleti olarak ceneli kırcı, cevher olarak da farklı olusum gosteren bes kromit cevheri (Bantlı, Dereboyu, Kef, Lasir ve Yunuskuyu) calısmalarda kullanılmıstır. Sonuclar tane boyutunun fonksiyonu olarak sunulmustur. Aynı ufalama cihazında kırılan cevherlerin tane seklinin cevherin olusum tipine ve tane boyutuna bağlı olduğu bulunmustur. Ayrıca her tane sekil parametresi icin ceneli kırıcıda tum cevherleri kapsayan genel eğilim grafikleri elde edilmistir.

Anahtar Kelimeler

Tane sekli, görüntü analizi, ufalama

Particle Shape Characterization Of Chromites Commiınuted In Jaw Crusher

Öz

The aim of this study is to characterize the shape of comminuted

mineral particles quantitatively and to determine the effects of ore characteristics

and particle size on particle shape. Particle shape is characterized as roundness,

roughness and aspect ratio definitions by using image analysis technique. The

quantitative characterization of particles is achieved by using Leco 2001 automatic

image analyzer. Jaw crusher is used as comminution machine and five types of

chromite ores bedded differently (Bantlı, Dereboyu, Kef, Lasir and Yunuskuyu) were

used in the studies. The results are given as a function of particle size. It was found

that particle shape of ores comminuted in same device was dependent on type of ore

and particle size. Futhermore, general trend graphics for each particle shape

parameter in jaw crusher were obtained.

Anahtar Kelimeler

Particle shape, image analysis, comminution

Kaynakça

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