INFLUENCE OF THE TYPE AND SIZE OF GRINDING MEDIA ON THE PROPERTIES OF REACTIVE ALUMINA FOR REFRACTORY CONCRETE
Abstract
Refractory concrete products are used in various fields of production, such as metallurgy, ceramics, glass, cement and even nuclear industry. In any places where high temperature is used, a kind of "protector" is required from aggressive media, such as liquid, gas, solid materials. Just such a material is monolithic refractory, or simply refractory concrete. Such concrete, as well as ordinary construction, consists of various kinds of aggregates that have both high melting temperatures and strong mechanical properties that give the final composite the necessary properties. This article presents the results of a study of the effect of the type and size of grinding media in a vibrating mill on the properties of reactive alumina for refractory concrete. Studies have shown that the use of Ø12-18 balls as grinding media is the most optimal. Microscopic analysis showed that the shape and size of the grinding media affects the size and shape of the particles of reactive alumina. Since it allows you to reduce the grinding time from 30 min (workshop) to 20 min, which from an economic point of view reduces production costs by reducing energy costs and increasing the service life of the vibrating mill. Also, by increasing the specific surface area to 11838 cm2/g compared to the workshop (8500 cm2/g), it is possible to achieve better packing of particles in concrete. Thus, high indicators of reactive alumina were obtained, which will improve the construction and technical properties of refractory concrete.
For citation:
Levin G.E., Vinogradova L.A., Iksanov F.R., Agapov E.A. Influence of the type and size of grinding media on the properties of reactive alumina for refractory concrete. ChemChemTech [Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2022. V. 65. N 9. P. 105-111. DOI: 10.6060/ivkkt.20226509.6693.
References
Lotov V.A., Sarkisov Yu.S., Gorlenko N.P., Zubkov O.A. Processes of heat release during hydration and harden-ing of cement in the presence of microsilica and superplasticizer. ChemChemTech [Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2022. V. 62. N 2. P. 79-87 (in Russian). DOI: 10.6060/ivkkt.2022502.6490.
Teptereva G.A., Pakhomov S.I., Chetvertnev I.A. Renewable natural raw materials, structure, properties, application prospects. ChemChemTech [Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2021. V. 64. N 9. P. 4-121 (in Russian). DOI: 10.6060/ivkkt.20216409.6465.
GOST 2409-95. Refractories. Method for determining apparent density, open and total porosity, water absorption. M.: IPK Standartov. 2004. 8 p. (in Russian).
TU 14-194-280-07 with amendment 1. Alumina reactive finely dispersed GDT. Borovichi: JSC "BKO". 2016. 4 p. (in Russian).
Margishvili A.P., Rusakova G.V., Gvozdeva I.A., Alekssev P.A., Kuznetsova O.S. New low- and ultra-low-cement refractory concretes produced by JSC "Borovichi Refractory Plant" for metallurgy and glass industry. Novye Ogneupory. 2008. N 3. P. 121-126 (in Russian).
GOST 30558-98. Alumina metallurgical. Specifications. M.: Standartinform. 2011. 7 p. (in Russian).
Migal V.P., Skurikhin V.V., Bulkin V.V. Unformed refractories manufactured by Borovichi Refractories Plant. Novye Ogneupory. 2011. N 10. P. 11-14 (in Russian).
TTI 194-11-08-15. Firing a refractory briquette in a TsZL tunnel kiln. Borovichi: JSC "BKO". 2015. 10 p. (in Rus-sian).
Handbook of the master of refractory production of JSC "BKO". Borovichi: JSC "BKO". 2011. 201 p. (in Russian).
Taikabutsu G.K. Refractories Handbook. Tokyo: Technical Associations of Refractories Japan. 1998. 520 p.
Carniglia S.C., Barna G.L. Handbook of Industrial Refractories Technology. Principles, Types, Properties and Applications. Park Ridge. USA: Noyer Publications. 1992. 627 p.
Axelrod L.M. Competition in the metallurgical market is the engine of competition in the refractory market. Novye Ogneupory. 2016. N 7. P. 3-17 (in Russian).
Grinshpun E.M., Gorokhovsky E.M., Beklemyshev E.V., Karpets L.A. Refractory products and masses of JSC "Dinur". Novye Ogneupory. 2011. N 8. P. 16-23 (in Russian).
Semchenko G.D. Unformed refractories. K.: NTU "KhPI". 2007. 304 p. (in Russian).
Axelrod L.M. Development of the refractory industry ― response to consumer requests. Novye Ogneupory. 2013. N 3. P. 107-122 (in Russian).
Pivinsky Yu.E. Ceramic and refractory materials. V. 2. SPb.: Stroyizdat SPb. 2003. 668 p. (in Russian).
Pivinsky Yu.E. Rheology of dispersed systems, VKVS and ceramic concrete. Elements of nanotechnologies in silicate materials science. V. 3. SPb.: Politekhnika. 2012. 682 p. (in Russian).
Pivinsky Yu.E., Dobrodon D.A. Preparation and properties of astringent high‒alumina suspensions in the bauxite - quartz glass system. Novye Ogneupory. 2002. N 5. P. 19-26 (in Russian). DOI: 10.1007/s11148-005-0090-6.
Pivinsky Yu.E. Dyakin P.V., Vichman S.V., Dyakin P.V. Pressurecast high-alumina ceramic castings 1. Compaction and properties of matrix systems based on mixed VKVS Composition: Bauxite, quartz glass and technical alumina. Ogneupory Promyshl. Keramika. 2005. V. 46. N 3. P. 220-224 (in Russian). DOI: 10.1007/s11148-005-0090-6.
Pivinsky Yu. E. Dyakin P.V., Vichman S.V., Dyakin P.V. Pressurecast high-alumina ceramic castings. 2. Com-paction and properties of materials based on plasticized VKVS bauxite, reactive aluminum oxide and their binary mixtures. Ogneupory Promyshl. Keramika. 2005. V. 46. N 6. P. 396-402 (in Russian). DOI: 10.1007/s11148-006-0034-9.
Pivinsky Yu.E. New refractory concretes and binding systems: the main trends in the development, production and use of refractories in the 21st century. 2. Ceramic binders and castings. Ogneupory Promyshl. Keramika. 1998. V. 39. N 3. P. 91-99 (in Russian). DOI: 10.1007/BF02767985.
Pivinsky Yu.E., Dyakin P.V., Perepelitsyn V.A. Research in the field of production of molded and unformed refractories based on high-alumina VKVS. Part 1. High-alumina bauxite as the main raw material component. Novye Ogneupory. 2015. V. 56. N 4. P. 344-350 (in Russian). DOI: 10.1007/s11148-015-9845-x.
Pivinsky Yu.E., Dyakin P.V. Research in the field of production of molded and unformed refractories based on high-alumina VKVS. Part 2. Properties of the initial components and castings based on the VKVS composite composition. Investigation of the initial stage of sintering and mullitization. Ogneupory Promyshl. Keramika. 2015. V. 56. N 5. P. 544-550 (in Russian). DOI: 10.1007/s11148-016-9884-y.
Pivinsky Yu.E., Dyakin P.V., Ostryakov L.V. Research in the field of production of molded and unformed refractories based on high-alumina VKVS. Part 3. The effect of firing temperature on sintering and mullitization of materials obtained on the basis of composite HCB. Ogneupory Promyshl. Keramika. 2015. V. 56. N. 6. P. 648-655 (in Russian). DOI: 10.1007/s11148-016-9906-9.
Pivinsky Yu.E., Solovyov Yu.N., Solovyov A.N. Research in the field of production of molded and unformed refractories based on high-alumina VKVS. Part 4. The effect of the addition of refractory clays on the properties of composite compositions, castings and materials based on them. Novye Ogneupory. 2016. V. 57. N 1. P. 70-76 (in Russian). DOI: 10.1007/s11148-016-9930-9.
Pivinsky Yu.E., Dyakin P.V., Ostryakov L.V. Research in the field of obtaining molded and unformed refractories based on high-alumina VKVS. Part 5. The effect of the firing temperature on the properties of materials obtained from composite materials with the addition of refractory clay. Novye Ogneupory. 2016. V. 57. N 2. P. 180-184 (in Russian). DOI: 10.1007/s11148-016-9950-5.
Pivinsky Yu.E., Kolobov Yu.V., Kolobov A.Yu. Research in the field of obtaining molded and unformed refractories based on high-alumina VKVS. Part 6. Mullitization and thermal expansion of materials based on a compound composition of VKVS. Novye Ogneupory. 2016. V. 57. N 3. P. 297-303 (in Russian). DOI: 10.1007/s11148-016-9972-z.
Pivinsky Yu.E., Dyakin P.V. Dispersion (deflocculation) of aluminum. Ogneupory Promyshl. Keramika. 2004. V. 45. N 3. P. 201-209 (in Russian). DOI: 10.1023/B:REFR.0000036730.62623.f7.
Pivinsky Yu.E., Dyakin P.V., Ostryakov L.V. Research in the field of production of molded and unformed refractories based on high-alumina VKVS. Part 3. Influence of firing temperature on sintering and mullitization of materials obtained on the basis of composite composition. Novye Ogneupory. 2015. N 12. P. 25-33 (in Russian).
