Kinetics of joint grinding of quartzite with new kinds of mineralizing additives in the production of dinas refractories

• Published in: Refractories and industrial ceramics Vol. 40; no. 1-2; pp. 56 - 58
• Main Authors: KHONCHIK, I. V, DROZD, V. I
• Format: Journal Article
• Language: English
• Published: New York, NY Plenum 1999; Springer Nature B.V
• Subjects: Additives; Applied sciences; Building materials. Ceramics. Glasses; Chemical industry and chemicals; Cinders; Coke ovens; Disintegration; Exact sciences and technology; Grindability; Grinding; Homogeneity; Kinetic equations; Mixtures; Pyrite; Quartzite; Refractories; Refractory products; Silica-alumina refractories; Silica refractory; Additive; Quartzites; Mineralizing agent; Grinding(comminution); Kinetics; Manufacturing; Experimental study
• ISSN: 1083-4877; 1573-9139
• DOI: 10.1007/BF02762447

The effect of various calcium- and iron-bearing additives on disintegration of quartzite in joint grinding is studied. The grindability of quartzite mixtures with mineralizing additives virtually does not differ from that of quartzite. This makes it possible to simplify the production process of dinas refractories by introducing the mineralizing additives right into the tube grinder in preparing the fine component of the charge. The properties of the dinas articles stabilize due to the higher degree of homogeneity of the quartzite mixture. A kinetic equation describing the variation of the content of the coarse fraction in grinding quartzite with mineralizing additives is suggested. The properties of specimens fabricated by joint grinding of quartzite with lime screenings and pyrite cinders fully meet the requirements on dinas refractories used for lining coke ovens.