Physical and Chemical Geotechnologies

Abstract

The paper highlights the main aspects of the technology of obtaining composite fuel from the man-made raw materials that make up the deposits formed as a result of human production and economic activities. The data are given concerning the study of qualitative characteristics of raw materials of man-made deposits to consider the parameters of the composite fuel production technology. To determine the qualitative characteristics of raw materials of man-made deposits, the following is used: analytical and experimental analysis of particle size distribution (PS) – screen and sedimentation; chemical composition analysis – X-ray fluorescence analysis (XRF) and technical analysis (TA); complex analysis including analysis and generalization of the scientific and technical achievements in the field of physicochemical effects on dispersed systems – electrokinetic and surface properties. Estimation of possible directions of complex processing and use of off-balance waste resources of coal beneficiation can be their accumulation at low temperatures and pressures without prior enrichment using low-ash waste chemical and pulp and paper industry as a composite and various additives to intensify fuel production, and without binders.

Keywords: industrial waste, technology, composition, fuel, lump, sludge, lignin, physical and mechanical characteristics, man-made raw materials

References

1. Ksintaris, V.N., Renitar, Ya.A. (1983). Use of secondary raw materials and production waste (Domestic and foreign experience, efficiency and trends). M.: Economics, 168 p.
2. Pavlуchenko, A., Haidai, O., Firsova, V., Ruskykh, V., & Tkach, I. (2020). Technological directions of coal enrichment waste processing. Collection of Research Papers of the National Mining University, (62), 139-148. https://doi.org/10.33271/crpnmu/62.139
3. Pavlуchenko, A., Haidai, O., Firsova, V., & Lampika, T. (2020). Optimization of physical and mechanical parameters of fuel products obtained from treatment of coal industry waste. Collection of Research Papers of the National Mining University, (63), 88-97. https://doi.org/10.33271/crpnmu/63.088
4. Haidai, O.A. (2013). Researches of structural-mechanical properties of coal tailings as disperse systems. Annual Scientific-Technical Collection. Leiden, The Netherland. Press/Balkema, 327-331.
5. Haidai, O. (2018). On the development of technogenic deposits using composite fuel production technology. Scientific and technical journal Coal of Ukraine, (4-5), 27-29.
6. Haidai, O. (2010). Estimation of qualitative indicators of coal at extraction in a technological chain and possibility of secondary use of enrichment products, Scientific herald of NMU, (1), 23-25.
7. . Haidai, O. Demchenko, Yu., Koval. A. (2011). Investigation of the influence of pH charge on the strength properties of briquettes obtained from coal slimes and mines. XXV Szkoly Eksploatacji Podziemnej 21-25 lutego 2011, 451-454.
8. Petlyovany, M., Gaidai, O.A. (2017). Analysis of accumulation and systematization of waste heaps of coal mines, prospects of their development. Geotechnical mechanics, (136), 147-158
9. Haidai, O., Ruskyh. V. (2018). To the problem of development of technogenic deposits using the technology of production of composite fuel. Physical & Chemical Geotechnologies – 2018: Materials of the International Scientific & Practical Conference, 26-27.
10. Elishevich, A. (1989). Mineral briquetting. M.: Nedra, 300 p.