The influence of the weighted average diameter of the ball on the particle size of the final product
https://doi.org/10.21822/2073-6185-2024-51-3-195-201
Abstract
Objective. Currently, cement is crushed in mills to a specific surface area of 2500-3000 and 3500-4500 cm2/g or more. Further grinding of clinker sharply worsens the properties of the resulting product. The relevance of the topic is due to the increased interest in reducing material and energy costs in the process of clinker grinding. The purpose of the work is to study the effect of different assortment of grinding media and weighted average ball diameter on the particle size of the final product, performing particle size analysis by particle diffraction. Method. To obtain reliable experimental data, a specially developed model of the grinding unit was used. Analysis of particle size by diffraction or spatial distribution (scattering spectrum) of scattered light was carried out using a laser analyzer. Result. A research methodology has been developed that meets the modern capabilities of experimental technology. Experimental studies have been conducted on clinker grinding in a laboratory mill. The combined effect of different assortments of grinding bodies and the average weighted diameter of the ball on the particle size of the final product has been determined. Conclusion. Studies of the curves of the final product obtained using different weighted average ball diameters have shown that large impact energy is not required to grind small grains; the diameter of the grinding bodies should decrease as the grain size of the material decreases. Therefore, the balls must have a minimum diameter, but sufficient to destroy the particles of the material.
About the Authors
A. A. Krutilin
Volgograd State Technical University (Sebryakov Branch)
Russian Federation
Russian Federation
Alexander A. Krutilin, Cand. Sci. (Eng.), Assoc. Prof., Department of Building Materials and Special Technologies
21 Michurina Str., Volgograd region, Mikhailovka 403343
F. P. Potapov
Volgograd State Technical University (Sebryakov Branch)
Russian Federation
Russian Federation
Fedor P. Potapov, Cand. Sci. (Eng.), Assoc. Prof., Department of Building Materials and Special Technologies
21 Michurina Str., Volgograd region, Mikhailovka 403343
N. A. Inkova
Volgograd State Technical University (Sebryakov Branch)
Russian Federation
Russian Federation
Nadezhda A. Inkova, Senior Lecturer, Department of Building Materials and Special Technologies
21 Michurina Str., Volgograd region, Mikhailovka 403343
O. K. Pakhomova
Volgograd State Technical University (Sebryakov Branch)
Russian Federation
Russian Federation
Olesya K. Pakhomova, Senior Lecturer, Department of Building Materials and Special Technologies
21 Michurina Str., Volgograd region, Mikhailovka 403343
References
1. Barbanyagre V.D., Stronin A.A. Study of the influence of the diameter of a large ball in the grinding charge of an open circuit mill on the dispersion characteristics of clinker. Bulletin of Belgorod State Technological University named after. V.G. Shukhova. 2018; 5:60-65.(In Russ)
2. Budnikova V.S. Use of grinding intensifiers for the production of cements. In the collection: Education, science, production. Belgorod State Technological University named after. V.G. Shukhova. 2015; 26-29. (In Russ)
3. Vaitekhovich P.E., Semenenko D.V. The influence of interaction between grinding bodies on the nature of their movement in a planetary mill. Chemical and oil and gas engineering. 2010;9:13-15. .(In Russ)
4. Gerasimov M.D., Latyshev S.S., Bogdanov N.E., Loktionov I.O. Review of design solutions in the field of grinding mills. In the collection: Energy-saving technological complexes and equipment for the production of building materials. Interuniversity collection of articles. Edited by V.S. Bogdanov. Belgorod, 2018;132- 146. (In Russ)
5. Zhukov V.P., Mizonov V.E. Optimal distribution of grinding media sizes along the length of drum mills. Theoretical foundations of chemical technology. 1995;29(6):646-650.(In Russ)
6. Zhukov V.P., Ushakov S.G. Optimal size distribution of grinding media in drum mills in a collection: intensification of processes of mechanical processing of bulk materials. Interuniversity collection of scientific papers. Ivanovo, 1987;40-43. (In Russ)
7. Kozlovsky V.I., Vaitekhovich P.E., Kamlyuk T.V. The influence of the size of grinding media on the efficiency of material dispersion in a ball mill with a stirrer. Proceedings of BSTU. No. 3. Chemistry and technology of inorganic substances. 2016;3 (185):136-141.(In Russ)
8. Konovalov D.A. Study of the influence of an assortment of grinding media on the main dispersion parameters of cement and its properties. In the collection: International scientific and technical conference of young scientists of BSTU named after. V.G. Shukhova. 2017;197-201.(In Russ)
9. Malyshev V.P., Bekturganov N.S., Makasheva A.M., Zubrina Yu.S. Probabilistic model of materials grinding as a self-organization operator and process attractor. Non-ferrous metals. 2016;2 (878):33-39.(In Russ)
10. Malyshev V.P., Zubrina Yu.S., Yun A.B., Sinyanskaya O.M. Adaptation of a probabilistic grinding model to the operation of ball drum mills. Non-ferrous metals. 2017;10:17-24.(In Russ)
11. Nesmeyanov N.P., Sintsov D.I., Buzadzhi I.S. Intensification of the grinding process in tube mills. In the collection: Energy-saving technological complexes and equipment for the production of building materials. Interuniversity collection of articles. Ed. V.S. Bogdanov. Belgorod, 2014;185-187.(In Russ)
12. Potapov F.P. Intensification of the grinding process in ball drum mills. Dissertation for the degree of Candidate of Technical Sciences. Belgorod State Technological University named after. V.G. Shukhova. Belgorod, 2011.(In Russ)
13. Stalinsky D.V., Rudyuk A.S., Soleny V.K. The effectiveness of using small-diameter grinding balls for grinding cement. Steel. 2022;6:15-19 .(In Russ)
14. Khanin S.I., Starchenko D.N. Regularities of the process of movement of grinding media in the body of a ball drum mill. Monograph. Belgorod, 2013.(In Russ)
15. Sharapov R.R. Scientific basis for creating technological cement grinding systems based on closed-cycle ball mills. Abstract of the dissertation for the degree of Doctor of Technical Sciences. Belgorod State Technological University named after. V.G. Shukhova. Belgorod, 2009. (In Russ)
16. Sharapov R.R. Scientific basis for creating technological cement grinding systems based on closed-cycle ball mills. Dissertation for the degree of Doctor of Technical Sciences. Belgorod State Technological University named after. V.G. Shukhova. Belgorod, 2009. (In Russ)
17. Sharapov R.R. Efficiency of closed cycle grinding systems based on ball mills. In the collection: Current problems of the construction industry and education. Collection of reports of the First National Conference. 2020; 277-282.(In Russ)
18. Shakhova L.D., Cherkasov R.A. Intensification of the clinker grinding process using grinding intensifiers. Bulletin of Belgorod State Technological University named after. V.G. Shukhova. 2014;4:148-152.(In Russ)
Review
For citations:
Krutilin A.A., Potapov F.P., Inkova N.A., Pakhomova O.K. The influence of the weighted average diameter of the ball on the particle size of the final product. Herald of Dagestan State Technical University. Technical Sciences. 2024;51(3):195-201. (In Russ.) https://doi.org/10.21822/2073-6185-2024-51-3-195-201
Views:
159
Email this article 
