Technological solutions to localize sources of spontaneous fires in mining of near-edge reserves using ore and host rock caving systems
A.M. Mazhitov1, S.A. Korneev1, A.N. Smyatkin2, B.M. Gabbasov1
1 Nosov Magnitogorsk State Technical University, Magnitogorsk, Russian Federation
2 Modern Surveying Technologies Scientific and Production Association’ LLC, Magnitogorsk, Russian Federation
Russian Mining Industry №1 / 2022 р. 122-127
Abstract: Technological solutions are developed to localize and isolate spontaneous fires in mining of the near-edge reserves using the ore and host rock caving systems. The developed technology envisages two implementation stages: a) formation of a clay and sand bed on the pit wall with the thickness of the insulating layer not less than 10 m; b) silting of the pit walls and floor with clay and sand mixture (slurry) up to the assumed level of the fire sources at the final stage of oxidation processes liquidation. Three technological options have been developed to supply the silting slurry, the choice of which is made according to the mining, geological and technical conditions of the deposit. The work is performed based on the accumulated experience of silting operations, research results, improvements of the processing scheme, methods of their transportation and laying in the mined-out space of the open pit. The proposed solutions make it possible to limit the access of oxygen to the sources of spontaneous fires within a minimum period of time and ensure timely prevention of local fire seats in case the oxidation processes intensify.
Keywords: oxidation processes, silting activities, spontaneous fire, clay and sand mixture
Acknowledgments: The paper was prepared with the financial support of Presidential Grant RF MD-3602.2021.1.5
For citation: Mazhitov A.M., Korneev S.A., Smyatkin A.N., Gabbasov B.M. Technological solutions to localize sources of spontaneous fires in mining of near-edge reserves using ore and host rock caving systems. Russian Mining Industry. 2022;(1): 122–127. https://doi.org/10.30686/1609-9192-2022-1-122-127
Article info
Received: 25.01.2022
Revised: 21.02.2022
Accepted: 22.02.2022
Information about the authors
Artur M. Mazhitov – Cand. Sci. (Eng.), Associate Professor, Department of Mineral Deposits Development, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russian Federation
Sergey A. Korneev – Cand. Sci. (Eng.), Associate Professor, Department of Mineral Deposits Development, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russian Federation
Alexey N. Smyatkin – Chief Surveyor, ‘Modern Surveying Technologies Scientific and Production Association’ LLC, Magnitogorsk, Russian Federation
Bulat M. Gabbasov – Cand. Sci. (Eng.), Associate Professor, Department of Mining Machines and Transportation Technological Complexes, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russian Federation
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