Technogenic Rock Dumps Physical Properties' Prognosis via Results of the Structure Numerical Modeling

Markov, Sergey; Martyanov, Victor; Preis, Elena; Abay, Asmelash

doi:10.1051/e3sconf/20172101021

Cited by 19 publications

(8 citation statements)

References 4 publications

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“…The instability of properties of the thickened product is due to the specifics of the production process of coal processing [18][19][20][21][22][23][24][25][26]. To carry out experimental work on the dewatering of thickened product, the methodology of the experiment was developed and approved [27][28][29][30][31][32][33][34]. The methodology was supposed to solve the following tasks:…”

Section: Methodsmentioning

confidence: 99%

Study of slurry dewatering in a horizontally placed shell filtering construction

et al. 2021

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Dewatering of water-coal slurry or thickened product under conditions of operating SUEK-Kuzbass JSC enrichment plants is a promising direction of obtaining technogenic mineral resources. It should also be noted that the quality of the obtained product will be directly influenced by the quality of the initial raw materials. If the content of carbon particles is high and the average ash content of the solid phase is low, such a slurry will be of interest in terms of obtaining additional volumes of coal after dewatering. The object of this study is water-coal slurry obtained at the outlet of the radial thickener (thickened product). The subject of the research is technology of thickened product dewatering with the use of shell filter constructions. The aim of the work is to develop and substantiate parameters of low-cost technology of thickened product dewatering to ensure an increase in economic and environmental efficiency of mining operations. The idea of the work is to use the laws of mass transfer of suspended particles of water-coal slurry by filtering through specially made shell filter constructions (SFC).

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Section: Methodsmentioning

confidence: 99%

Study of slurry dewatering in a horizontally placed shell filtering construction

et al. 2021

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“…The resulting downwarping can be divided into five types [7][8]: -synclinal -in the development of deposit seams of medium (from 1.5 to 3 m) and large (more than 3 m) thickness, horizontal and wavy bedding or dipping at low angles (up to 27 °). Mould of rock dislocation is in the zone of downwarping; -synclinal terraced -in the development of deposits dipping at low angles or inclined (from 27O to 45 °).…”

Section: Methodsmentioning

confidence: 99%

Geo-Environmental Problems of Open Pit Mining: Classification and Solutions

et al. 2018

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Open mining development is the cheapest method, because it uses powerful production equipment, which allows a large amount of minerals to be excavated during a shift. Working conditions in open development are less dangerous for the health of workers, and a smaller number of supervisory personnel than in underground mining is required. In the process of open development, stripping works are first carried out, i.e. the removal of the empty rocks covering the deposit. Constantly growing requirements for energy sources, metal ores and building materials cause the need for intensive development of the mining industry. There is a rejection of significant areas for the development of minerals in an open and closed way. The causes of degradation are both the mining of minerals, as well as construction, the placement of production and consumption wastes in the natural environment. Changes in the components of the environment are observed as a result of direct or indirect influence of mining enterprises activities. This requires an analysis of the entire complex of geo-environmental problems of open mining and the identification of the most urgent ways to solve them.

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“…In order to significantly reduce the negative impact of coal concentration plants on the environment, it is necessary to create closed water cycles at these enterprises [1][2][3][4][5][6]. Preliminary treatment of industrial wastewater from mining enterprises is mainly aimed at cleaning them from suspended solids, especially with the use of technogenic filter massifs from overburden rock [7][8][9][10][11][12][13][14]. The use of geotextile materials for dewatering of water-coal slurry makes sense at further purification of sludge water released from the surface of shell filtering constructions [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Sludge water stabilization treatment

Murko

Murko²,

Kretchmann

2021

E3S Web Conf.

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Technologically contaminated water, formed during processing of coal slurries, finds its application in modern technological cycles of coal enrichment. Limitation of use of untreated recycled water of coal concentration plants is caused by a high degree of its mineralization by various salts, presence of insoluble solid particles and presence of flotation reagents, coagulants and flocculants. Part of technical water purified from mineral and organic contaminants can be used in heating systems and heat exchange equipment of industrial enterprises, including the coal industry. For this purpose, it is necessary to reduce the scale-forming ability of service water (to reduce the content of soluble calcium and magnesium salts in water). One of the most effective and advanced methods is the stabilization treatment of water with an electric field. In addition, this method is environmentally safe, low-cost and simple. The article gives the foundation of the method of stabilization treatment of recycled water of concentrating plants by an electric field, a description of the methodology of the laboratory experiment for scaling reduction, and the analysis of the results.

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Technogenic Rock Dumps Physical Properties' Prognosis via Results of the Structure Numerical Modeling

Cited by 19 publications

References 4 publications

Study of slurry dewatering in a horizontally placed shell filtering construction

Study of slurry dewatering in a horizontally placed shell filtering construction

Geo-Environmental Problems of Open Pit Mining: Classification and Solutions

Sludge water stabilization treatment

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