WALL CERAMIC MATERIALS BASED ON TECHNOGENIC RAW MATERIALS OF COAL SERIES

Objectives. The paper discusses the feasibility of using the technogenic raw materials of the coal series in the production of highly efficient wall ceramics. The interest in the man-made raw materials of the coal series (sludge, screenings and cake) as the raw materials used in the manufacture of ceramic products has now greatly increased. The reason for this was the reduction of the base of high-quality clay raw materials, the appreciation of its use in the production of wall ceramics, a large amount of accumulated reserves of various rocks of coal-based man-made raw materials.

Method. The research used the following composition of the raw mix: 70% of technogenic raw materials of the coal series (screenings) and 30% of the clay raw materials. The determination of the physicomechanical properties of the samples was carried out according to GOST 530-2012. Coal dumps are fine- grained products, the solid part of which contains a significant amount of coal.

Result. The technological parameters of obtaining wall ceramic products based on coal slimes are determined. Studied the main physico-technical characteristics of the materials obtained. Phase transformations occurring during the burning and patterns of the formation of the structure of the shard were studied. The feasibility of the production of highly efficient ceramic products with low thermal conductivity and density based on technogenic raw materials of the coal series using the technology of compression molding is shown.

Conclusion. The results of theoretical studies are confirmed by practical data, which consist in the fact that in raw mixtures containing technogenic raw materials of coal series, a sharp increase in strength, taking into account the complete burning of carbon, occurs at temperatures of 1000-1060 ° C. The changes introduced during the production of products using this method will help achieve a significant energy saving of gas and optimization of the firing mode.

1. Yavruyan KH.S., Gayshun Ye.S., Kotlyar V.D. Osobennosti kompressionnogo formovaniya tonkodispersnykh produktov ugleobogashcheniya pri proizvodstve keramicheskogo kirpicha // Stroitel'nyye materialy. 2017. №12. S. 14-17. [Yavruyan Kh.S., Gaishun E.S., Kotlyar V.D. Features of the compression molding of fine products of coal preparation in the production of ceramic bricks // Construction materials. 2017. №12. P. 14-17. (In Russ)]

2. Yavruyan KH.S., Gayshun Ye.S., Vlasova T.A. Proizvodstvo stenovoy keramiki s primeneniyem tonko-dispersnykh produktov ugleobogashcheniya // Resursoenergoeffektivnyye tekhnologii v stroitel'nom komplek-se regiona. 2018. №9. S.

3. -128. [ Yavruyan Kh.S., Gaishun E.S., Vlasova T.A. Production of wall ceramics using fine-dispersed products of coal enrichment // Resource-energy efficient technologies in the building complex of the region. 2018. №9. Pp. 125-128. (In Russ)]

4. Kotlyar V.D., Yavruyan KH.S. Stenovyye keramicheskiye izdeliya na osnove tonkodispersnykh produktov pererabotki terrikonikov // Stroitel'nyye materialy. 2017. №4. S. 38-41. [ Kotlyar V.D., Yavruyan Kh.S. Ceramic wall articles based on finely dispersed waste products of heaps. Building Materials. 2017. №4. Pp. 38-41. (In Russ)]

5. Gayshun Ye.S., Rogochaya M.V., KH.S. Yavruyan Tekhnogennoye syr'yo ugol'nogo ryada v proizvodstve stenovoy keramiki // Stroitel'stvo i arkhitektura – 2015. 2015. S. 266-268. [Gaishun E.S., Rogochaya M.V., H.S. Yavruyan Technogenic raw materials of the coal series in the production of wall ceramics // Construction and Architecture - 2015. 2015. P. 266-268. (In Russ)]

6. Stolboushkin A.YU., Storozhenko G.I. Otkhody ugleobogashcheniya kak syr'yevaya i energeticheskaya baza zavodov keramicheskikh stenovykh materialov // Stroitel'nyye materialy. 2011. №4. S. 43-46. [Stolboushkin A.Yu., Storozhenko G.I. Coal Beneficiation Waste as a Raw Material and Energy Base of Ceramic Wall Material Plants // Construction Materials. 2011. №4. Pp. 43-46. (In Russ)]

7. Stolboushkin A.YU., Ivanov A.I., Syromyasov V.A., Fomina O.A., Druzhinin M. S., Zlobin V. I. Vliyaniye temperatury obzhiga na spekaniye keramicheskikh cherepkov iz otkhodov obogashcheniya uglya argillity //Izvestiya vysshikh uchebnykh zavedeniy. Stroitel'stvo. 2015. №10. S. 39-48. [Stolboushkin A.Yu., Ivanov A.I., Syromyasov V.A., Fomina O.A., Druzhinin M.S., Zlobin V.I. Influence of the firing temperature on sintering of ceramic shards from coal enrichment waste argillites / Proceedings of higher educational institutions. Building. 2015. №10. Pp. 39-48. (In Russ)]

8. Kotlyar V.D., Yavruyan KH.S.Stenovyye keramicheskiye izdeliya na osnove tonkodispersnykh produktov pererabotki terrikonikov// Stroitel'nyye materialy. 2017. №4. S. 38-41. [Kotlyar V.D., Yavruyan Kh.S.Stenovye ceramic products based on finely dispersed products of processing of heaps//Construction Materials. 2017. №4. pp. 38-41. (In Russ)]

9. Yavruyan KH.S., Kotlyar V.D., Lotoshnikova Ye.O., Gayshun Ye.S. Issledovaniye srednefraktsionnykh ma-terialov pererabotki terrikonikov dlya proizvodstva izdeliy stenovoy keramiki// Stroitel'nyye materialy. 2018. №4. S. 17-20. [Ya vruyan Kh.S., Kotlyar V.D., Lotoshnikova E.O., Gaishun E.S. Investigation of medium fractional materials of processing of heaps for the production of wall ceramics //Construction Materials. 2018. №4. pp. 17-20. (In Russ)]

10. Bozhko YU.A., Gayshun Ye.S., Dymchenko M.Ye., Kozlov A.V., Kozlov G.A. i dr. Arkhitektura. Stroitel'-stvo. Dizayn: istoriya, opyt, novatsii/ Bozhko YU.A., Gayshun Ye.S., Dymchenko M.Ye.- №2.- 2018.-S.83 [Bozhko Yu.A., Gaishun E.S., Dymchenko M.E., Kozlov A.V., Kozlov G.A. and others. Architecture. Building. Design: history, experience, innovations / Bozhko Yu.A., Gaishun E.S., Dymchenko M.E.- №2.- 2018.-P.83(In Russ)]

11. Kotlyar V.D., Ustinov A.V., Terekhina YU.V., Kotlyar A.V. Osobennosti protsessa obzhiga ugol'nykh shlamov pri proizvodstve stenovoy keramiki // Tekhnika i tekhnologiya silikatov. 2014. № 4. S. 8–15. [Kotlyar V.D., Ustinov A.V., Terekhina Yu.V., Kotlyar A.V. Features of the process of burning coal sludge in the production of wall ceramics // Technique and technology of silicates. 2014. No. 4. pp. 8–15. (In Russ)]

12. Yavruyan KH.S., Gayshun Ye.S., Kotlyar A.V. Osobennosti kompressionnogo formovaniya tonkodispers-nykh produktov ugleobogashcheniya pri proizvodstve keramicheskogo kirpicha // Stroitel'nyye materialy. 2017. № 12. S. 14–17. [Yavruyan Kh.S., Gaishun E.S., Kotlyar A.V. Features of compression molding of fine-dispersed coal preparation products in the production of ceramic bricks. Stroitel'nye materialy, 2013, no. 2017. No. 12. pp. 14–17. (In Russ)]

13. Reference to St. Petersburg YavruyanK.S., Gaishun E.S., Y. Teryokhina. Сompprehensive approach to the East Donbass Spopl Tip // Proceedings of the 2018 IEEE International Conference "Management of Sustainable Urban Development" (WASTE'2018). October, 2018. St. Petersburg, Russia. P. 22-24.

14. A.Yu. Stolboushkin, A.I. Ivanov, O.A. Fomina. Use of Coal-Mining and Fuel Burning // International Conference on Industrial Engineering, ICIE 2016. Procedures En-gineering 150 (2016) 1496-1502.

15. Kh.S. Yavruyan, V.D. Kotlyar, E.S. “For Coal-Threading of Wall Ceramics”, Materials & Technologies and Materials / TechnologiesScienceForumSubmitte. Vol. 931, pp. 532-536, May 2018.

16. Kotlyar V.D., Terokhina YU.V., Kotlyar A.V. Metodika ispytaniy kamnevidnogo syr'ya dlya proizvodstva stenovykh izdeliy kompressionnogo formovaniya // Stroitel'nyye materialy. 2014. № 4. S. 24-27. [Kotlyar V.D., Terekhina Yu.V., Kotlyar A.V. Test method kamnevidnogo raw materials for the production of wall products of compression molding // Construction materials. 2014. No. 4. P. 24-27. (In Russ)]

17. Kotlyar V.D., Ustinov A.V., Terokhina YU.V., Kotlyar A.V. Osobennosti protsessa obzhiga ugol'nykh shlamov pri proizvodstve stenovoy keramiki // Tekhnika i tekhnologiya silikatov. 2014. № 4, S. 8-15. [Kotlyar V.D., Ustinov A.V., Terekhina Yu.V., Kotlyar A.V. Features of the process of burning coal sludge in the production of wall ceramics // Technique and technology of silicates. 2014. № 4, p. 8-15. (In Russ)]

18. Seregin A.I. Pererabotka ugol'nykh shlamov v tovarnyye produkty netradi-tsionnym fiziko-khimicheskim vozdeystviyem: dic. kand. tekhn. nauk. M., 2009. 183 s. [ Seregin A.I. Processing of coal sludge into marketable products by nontraditional physicochemical effects: diss. Cand. tech. sciences. M., 2009. 183 p. (In Russ)]

19. Zolotarskiy A.Z., Sheyman Ye.SH. Proizvodstvo keramicheskogo kirpicha. M.: VSH.1989. 264 s. [Zolotarsky, A.Z., Sheiman, E.Sh. Production of ceramic bricks. M .: VS..1989. 264 s. (In Russ)]