SIKIŞTIRILMIŞ YATAK TESTİNDE TANE BOYUNA BAĞIMLI KIRILMA MODELİNİN UYGULANABİLİRLİĞİ

Yıl 2020, , 472 - 479, 30.01.2020

Deniz Altun , Hakan Benzer

https://doi.org/10.28948/ngumuh.539870

Öz

Manyetit, platin ve fosforit cevherlerinin
basınç altında kırılma karakteristiği sıkıştırılmış yatak testi ile
incelenmiştir. Bu amaçla, piston pres test aleti kullanılmıştır. Testler
sonucunda elde edilen veriler kullanılarak enerji ve tane boyunun kırılma
üzerine etkisi incelenmiştir. Literatürde yaygın olarak kullanılan ürün
inceliğini ifade eden t₁₀ değeri ile E_CS (Özgül Ufalama
Enerjisi) arasında ilişki kurulmuştur. Sonrasında ürün inceliği ile tane boyutu
ilişkisi incelenmiş ve test sonucunda elde edilen verilerin tane boyuna bağımlı
kırılma modeline uyumu değerlendirilmiştir. Çalışma sonunda, tane boyuna
bağımlı kırılma modelinin tane boyundan bağımsız kırılma modeline göre verilere
daha iyi uyum sağladığı ve malzemelerin basınç altında kırılma davranımının
belirlenmesinde de kullanılabileceği sonucuna varılmıştır.

Anahtar Kelimeler

yatak kırma, kırılma modeli

THE APPLICABILITY OF SIZE-DEPENDENT BREAKAGE MODEL IN COMPRESSED BED BREAKAGE

Öz

   Breakage characteristics of magnetite,
platinum and phosphorite ores were investigated
via compressed bed breakage tests. With this aim, piston-die test equipment was used. Effects of specific comminution
energy (E_CS) and particle size on breakage was investigated by using obtained data from the breakage tests.
The relationship between E_CS (Specific Comminution Energy) and t₁₀
value, which is commonly used in
literature, was established. Then, the product fineness and particle size
relationship were analysed, and the
compatibility of the data obtained from the tests, with size dependent breakage
model was evaluated. It was concluded that the size-dependent breakage
model better fitted to the data than the size-independent model and this model
could be used to determine the breakage behaviour under compression force.

Anahtar Kelimeler

bed breakage, breakage model

Kaynakça

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