Effect of Fractional Powder Filling on Breakage Parameters of Kaolinite

In this study, the effects on grinding conditions based on a kinetic model and model parameters of fractional powder filling were investigated on the kaolinite sample. For this purpose, firstly, four different mono-sized fractions were prepared between 0.106 and 0.045 mm formed by √2 sieve series. Si and Bi,j (breakage distribution function and related model parameter) equations were determined from the size distributions at different grinding period, and the model parameters (Si, aT, α,γ and ΦJ) 10 mm alumina ball and wet grinding medium, four different filling ratios (fc=0.072, 0.096, 0.120 and 0.144) and 30% ball filling loads. The results of tests, the optimum interstitial filling ratio for material filling rate (fc) in terms of maximum capacity is determined as 1.00.

Kaolenin Kýrýlma Parametrelerine Malzeme Doluluk Oranýnýn Etkisi

Bu çalýþmada, malzeme doluluk oranýnýn kaolen örneðinin kinetik modele dayalý öðütme özellikleri ve model parametrelerine etkileri araþtýrýlmýþtýr. Bu amaçla, 0.106-0.045 mm arasý √2 elek serisine göre 4 dar tane boyutu fraksiyonu hazýrlanmýþtýr. Laboratuvar ölçekli deðirmen ünitesinde, sulu öðütme ortamýnda 10 mm alümina bilya ile fc=0.072, 0.096, 0.120 ve 0.144 malzeme yüklerinde ve %30 bilya yükünde farklý öðütme sürelerinde elde edilen tane boyutu daðýlýmlarýndan özgül kýrýlma hýzý ve kümülatif kýrýlma daðýlýmý fonksiyonlarýna ait model parametreleri (Si, aT, α, γ ve Φj) bulunmuþtur. Testlerin sonucunda, azami kapasite açýsýndan malzeme doluluk oraný (fc) için en ideal boþluk doldurma oraný 1.00 olarak tespit edilmiþtir.