ANALYSIS OF SINGLE PARTICLE IMPACT BREAKAGE DISTRIBUTION FUNCTIONS OF A COLEMANITE ORE BY DROP WEIGHT TECHNIQUE

Kolemanit cevherinin tek tane darbe kırılma dağılımı fonksiyonları Narayanan [1] tarafından geliştirilen standard test yöntemleri ve veri değerlendirme metodolojisi kullanılarak tahmin edilmiştir. Bu amaçla, modifiye edilmiş JK Tech ağırlık düşürme test aletinin [2] manuel versiyonu kullanılmıştır. Kırılma testi sonuçları özgül ufalama enerjisi (Ecs) ve t10 boyut dağılımı parametresi ile temsil edilen darbe kırılması ürün inceliği arasındaki ilişkinin kurulmasında kullanılmıştır. Napier Munn vd., [3] tarafından verilen Ecs-t10 ufalama modeli kırılma testi sonuçları için sınanmıştır. Test sonuçları Ecs-t10 ufalama modeline başarılı bir şekilde uyum sağlamıştır. t-aile eğrisi yaklaşımı [1, 4, 5] özgül kırılma fonksiyonlarının oluşturulmasında kullanılmıştır. t10-tn aile eğrileri modellenmiş ve eğrilerin ampirik regresyon denklemleri kırıcı modelleri için kırılma fonksiyonunun farklı enerji seviyelerinde oluşturulması için önerilmiştir

Anahtar Kelimeler:

Kolemanit, Ufalama, Modelleme, Kırılma fonksiyonu, Ağırlık düşürme testi

KOLEMANİT CEVHERİNİN TEK TANE DARBE KIRILMA DAĞILIMI FONKSİYONLARININ AĞIRLIK DÜŞÜRME TEKNİĞİ İLE ANALİZİ

Single particle impact breakage distribution functions of a colemanite ore were estimated using the standard test methods and data evaluation methodology developed by Narayanan [1]. For this purpose, a modified manual version of a JK Tech drop weight test device [2] was used. Breakage test results were used to establish the relationship between specific comminution energy (Ecs) and impact breakage product fineness which was represented by the size distribution parameter t10. Ecs-t10 comminution model given by Napier Munn et.al [3] was validated for the breakage test results. Ecs-t10 comminution model was successfully fitted to the breakage test results. t-family curve approach [1, 4, 5] was used to re-construct specific breakage functions. t10-tn family curves were modelled and empirical regression equations were proposed to reconstruct breakage functions at different impact energy levels which could be used in models of crushers

Keywords:

Colemanite, Comminution, Modeling, Breakage function, Drop weight test,

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