FARKLI KIRILMA TEST PROTOKOLLERİNİN KAMARALI BİLYALI DEĞİRMEN MODELLEMESİNDE KULLANIMI
Öğütme devrelerinin modellenmesi, devre tasarımı ve optimizasyonu açısından önem
taşımaktadır. Doğru ve güvenilir modeller için malzemenin kırılma dağılımı fonksiyonunun tayin
edilmesi önem arz etmektedir. Çalışmada, her bir kamara için ayrı kırılma testlerinin kullanıldığı
model yapısı üzerine odaklanılmıştır. Çalışma kapsamında, 2 kamaralı bilyalı değirmen içeren
çimento öğütme devresi etrafında ve değirmen içinde örnekleme çalışmaları yürütülmüş ve
alınan numunelerin tane boyu dağılımları belirlenmiştir. Sonrasında madde denkliği çalışmaları
yürütülmüştür. Değirmenin ilk kamarası için tek tane ağırlık düşürme testleri, ikinci kamarası
için ise Hardgrove kırma testleri yürütülmüş ve tane boyuna bağlı kırılma dağılım fonksiyonları
hesaplanmıştır. Çalışma Hardgrove tekniğinin bilyalı değirmen modelindeki ilk uygulamasıdır.
Kamaralar ayrı olarak mükemmel karışım modeli kullanılarak modellenmiştir. Simülasyon
sonuçları ürün tahminlerinin 1. kamarada tutarlı olduğu ve 2. kamarada ise Hardgrove testinin tek
tane testine göre daha olumlu sonuçlar verdiğini göstermiştir.
Anahtar Kelimeler:
Öğütme, Kırılma, Modelleme, Hardgrove, Ağırlık düşürme
THE USE OF DIFFERENT BREAKAGE TEST PROTOCOLS IN MULTICOMPARTMENT BALL MILL MODELLING
Modelling of grinding circuits is crucial for circuit design and optimization. Determination of
breakage distribution function of the materials is important for accurate and reliable modelling. In
this study, the model structure was focused on using separate breakage tests for each chamber.
Within the study, sampling studies were performed around the grinding circuit containing
2-chamber ball mill and inside the mill and, particle size distributions of collected samples were
determined. Then mass balance studies were performed. Single particle drop weight test for
the chamber-1 while Hardgrove test for the second chamber of the mill was carried out then
size-dependent breakage distribution functions were calculated. The study is the first application
of using Hardgrove technique in the ball mill model. Each chamber was modelled separately
by using Perfect Mixing Model. Simulation results showed that the product estimations were
accurate for the chamber-1 that the Hardgrove test was suitable for the chamber-2.
Keywords:
Grinding, Breakage, Modelling, Hardgrove, Drop weight,
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- ISSN: 2564-7024
- Yayın Aralığı: Yılda 4 Sayı
- Yayıncı: TMMOB Maden Mühendisleri Odası
Sayıdaki Diğer Makaleler
FARKLI KIRILMA TEST PROTOKOLLERİNİN KAMARALI BİLYALI DEĞİRMEN MODELLEMESİNDE KULLANIMI
Ömürden GENÇ, Ahmet Hakan BENZER
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BASKI DEVRE KARTLARINDAKİ DEĞERLİ METALLERİN CEVHER ZENGİNLEŞTİRME YÖNTEMLERİ İLE KAZANIMI