THE EFFECT OF MILL SPEED ON KINETIC BREAKAGE PARAMETERS OF CLINKER AND LIMESTONE

The effect of mill speed was investigated on the limestone and the clinker samples of Goltas Cement Factory (Isparta, Turkey) at batch grinding conditions based on a kinetic model are presented in this paper. For this purpose, first, six different monosize fractions were carried out between 0.850 and 0.106 mm formed by a two-sieve series. Then, Si and Bi,j equations were determined from the size distributions at different grinding times, and the model parameters were compared for five different mill speed (fractional of mill critical speed; 55%, 65%, 75%, 85%, and 95%). The effect of the fraction of mill critical speed (Oc) on the grinding for model parameter aT was found to be different for two different samples: aT=0.0344 exp(0.00301 Oc) for clinker and aT=0.0225 exp(0.06183 Oc) for limestone. Additionally, it was found in this study that optimum grinding occurs at Oc=85%, in contrast to the 70% of critical speed of the ball mill in the cement factory.

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• Corporate Authors:

  Elsevier

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• Authors:
  • Deniz, V
• Publication Date: 2004-8

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 7 p.
• Serial:
  • Cement and Concrete Research
  • Volume: 34
  • Issue Number: 8
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Cement; Clinkers; Grinding; Kinetics; Laboratory tests; Limestone; Milling; Portland cement; Samples; Speed
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00983075
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 9 2004 12:00AM