SAFETY
Original Paper
UDC 622.82 © Z.S. Gelmanova, L.V. Gorshkova, L.D. Rudnik, A.V. Mezentseva, 2022
ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2022, № 4, pp. 53-57
DOI: http://dx.doi.org/10.18796/0041-5790-2022-4-53-57
Title
EFFICIENCY OF USING EXPANDING SILTING PULP FOR ISOLATING FIRES IN MINES OF THE REPUBLIC OF KAZAKHSTAN
Authors
Gelmanova Z.S.1, Gorshkova L.V.2, Rudnik L.D.1, Mezentseva, A.V.1
1Karaganda Industrial University, Temirtau, 101400, Republic of Kazakhstan
2Toraigyrov University, Pavlodar, 140008, Republic of Kazakhstan
Authors Information
Gelmanova Z.S., Phd (Economic), Professor of the Department of Construction, Economics and Business, e-mail: zoyakgiu@mail.ru
Gorshkova L.V., Phd (Engineering), Professor of the department "PGTS"
Rudnik L.D., Senior Lecturer, Department of Construction
Mezentseva, A.V., Senior Lecturer of the Department of Construction
Abstract
The article identifies factors affecting the efficiency of insulating structures in mines. To prevent shrinkage of the pulp, it is proposed to add quicklime to its traditional composition, consisting of clay, sand and water. It was found that the presence of about 5-7% quicklime in the pulp prevents its shrinkage, and the presence of 20-25% quicklime in the pulp allows the pulp to swell by about 20% by volume. Experimental studies have been carried out to identify the aerodynamic resistance of porous layers of materials. The air permeability of the pulp and the effect of quicklime on the expansion of the pulp mixture, the air permeability of various compositions of the silting pulp, including the compositions used for the construction of filter bridges, have been determined. It has been established that the least air permeability is possessed by the pulp, which has quicklime in its composition.
Keywords
Insulating structure, Air permeability, Double dam, Pulp composition, Tightness, Endogenous fire.
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For citation
Gelmanova Z.S., Gorshkova L.V., Rudnik L.D. & Mezentseva A.V. Efficiency of using expanding silting pulp for isolating fires in mines of the Republic of Kazakhstan. Ugol’, 2022, (4), pp. 53-57. (In Russ.). DOI: 10.18796/0041-5790-2022-4-53-57.
Paper info
Received January 13, 2022
Reviewed February 1, 2022
Accepted March 22, 2022
