Quantifying the effect of the grinding aids in a batch stirred mill by a modelling approach

Öz

Grinding aids are commonly used in grinding to disperse the material in the system effectively and to improve grinding performance. Most of the time, different grinding aids with varying dosages are tested in laboratory conditions by trial and error. A simple methodology is required to compare the results of different grinding aids and dosages in batch milling. In this study, the utilization of the modelling approach in comparing the effect of grinding aid types and dosages were aimed. In order to achieve this, an experimental program has been conducted using a laboratory-scale batch stirred ball mill. The empirical model developed using the Farazdaghi-Harris model offers a new approach to determine the effect of grinding aids on grinding performance.

Anahtar Kelimeler

• Stirred ball mill
• Fine grinding
• Grinding aids
• Modelling
• Farazdaghi-Harris model

Quantifying the effect of the grinding aids in a batch stirred mill by a modelling approach

Öz

Öğütme yardımcıları, malzemeyi sistemde etkin bir şekilde dağıtmak ve öğütme performansını iyileştirmek için öğütmede yaygın olarak kullanılmaktadır. Çoğu zaman, farklı dozajlardaki farklı öğütme yardımcıları, laboratuvar koşullarında deneme yanılma yoluyla test edilir. Kesikli öğütmede farklı öğütme yardımcılarının ve dozajlarının sonuçlarını karşılaştırmak için basit bir metodoloji gereklidir. Bu çalışmada, öğütme yardımcı türlerinin ve dozajlarının etkisinin karşılaştırılmasında modelleme yaklaşımının kullanılması amaçlanmıştır. Bunu başarmak için, laboratuvar ölçekli kesikli karıştırmalı bilyalı değirmen kullanılarak deneysel bir program yürütülmüştür. Farazdaghi-Harris modeli kullanılarak geliştirilen ampirik model, öğütme yardımcılarının öğütme performansı üzerindeki etkisini belirlemek için yeni bir yaklaşım sunmaktadır.

Anahtar Kelimeler

• Karıştırmalı bilyalı değirmen
• İnce öğütme
• Öğütme yardımcıları
• Modelleme
• Farazdaghi-Harris modeli

Kaynakça

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