Comprehensive Approach to the Processing of East Donbass Spoil Tip

Kotlyar, Vladimir; Yavruyan, Khungianos; Gaishun, Evgeniy; Teryokhina, Y.

doi:10.1109/waste.2018.8554158

Cited by 7 publications

(6 citation statements)

References 2 publications

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“…To predict the possibility of obtaining these or other types of products of structural ceramics based on sieve residues, as well as the development of technological parameters, it is necessary to know the processes that take place during their firing. This is important, because during the technological processing of sieve residues for coarse ceramics, the degree of grinding is not achieved at which individual components of the grain and minerals are produced [1][2][3][4][5][6]10]. Generally, with modern methods of preparing ceramic masses for coarse ceramics, the upper grain size limit is 0.2-1.0 mm, but a common task for stone-like raw materials is to increase the contact area between the particles of the ceramic mass, as this directly affects the strength, water absorption and other properties of products.…”

Section: Methodsmentioning

confidence: 99%

“…The manufacture of ceramic products based on industrial raw materials is increasing steadily in Europe while the production on the basis of traditional clay raw materials is decreasing. The research having been carried out at the Don State Technical University allowed to identify and evaluate some of the processing products of the refuse piles of the Eastern Donbass as the raw materials for the production of a number of structural ceramics -common, lining and clinker bricks, high-performance ceramic stones, ceramic tiles and siding, as well as other products [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Features of Phasea Mineralogical Conversions when Burning Wall Ceramics on the Basis of Secondary Materials for Processing Coal Deposits of Eastern Donbass

Yavruyan

Gaishun

Kotlyar

et al. 2019

MSF

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The paper presents the results of the studies on the phase conversions taking place during the firing of the refuse piles processing sieve residue in the Eastern Donbass, which are the promising raw materials for the production of various types of structural ceramics – common, lining and clinker bricks, high-performance ceramic stones, ceramic tiles and siding. It is established that the sieve residue is the raw material of the low-temperature baking. Depending on the degree of grinding, the raw material may belong to the group of mid-baking or high-baking raw materials. The sieve residues have a rather narrow baking interval - no more than 50 °C, which is possible to expand by increasing the content of fine fractions during the preparation of sieve residue. The main mineral phases at the firing temperature of 1000-1100 оС are quartz, feldspar, ferrous silicates and aluminum silicates (fayalite, hypersten, etc.), hematite. The features of the phase and mineralogical conversions allow us to recommend to fire products on the basis of sieve residue at temperatures of 1000 °C and higher.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Features of Phasea Mineralogical Conversions when Burning Wall Ceramics on the Basis of Secondary Materials for Processing Coal Deposits of Eastern Donbass

Yavruyan

Gaishun

Kotlyar

et al. 2019

MSF

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“…Broken rock with coal from the drifting face is delivered to the surface in a single traffic flow and is stockpiled in a rock dump. In the course of work, only the rock flow from the drifting face is determined, since coal is a valuable component in the dump and can be recovered in the near future [44]. The computational scheme for determining the volumes of waste rock formed during the mine working is shown in Figure 7.…”

Section: Determining the Volume Of Rocks Outcrop From Mine Workingsmentioning

confidence: 99%

Research into balance of rocks and underground cavities formation in the coal mine flowsheet when mining thin seams

Petlovanyi¹,

Malashkevych²,

Sai³

et al. 2020

Min. miner. depos.

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Purpose. Study the movement of waste rock flows in the coal mine technological system and determine the balance of rocks and underground cavities formation from the perspective of the current mining operations development in order to assess the possibility of leaving the rock in the underground area. Methods. Based on the rank order of the Western Donbass mines, a coal mine has been chosen as the object of research in terms of maximum output and ash content. An algorithm is proposed for analytical studies of determining the rock outcrop in the course of stope, drifting and repair operations, as well as the prospective volumes of underground cavities for placing the formed waste rocks per a calendar year. The algorithm is based on the actual state of mining operations and the indicators of the stope and drifting faces of the mine, as well as the achieved modern mining-engineering parameters of the coal seams mining. Findings. It has been revealed that the main supply of waste rocks to the surface occurs as a result of stope operations with rock undercut -39% and underground mine workings -33%. It is proposed to differentiate all waste rock outcropped after mining operations into 2 categories: difficult to dispose of and prospective for disposal. It has been found that underground cavities have enormous potential for stockpiling of all waste rocks, the volume of which is by 2.8-4.8 times higher than the rock volume. It has been revealed that the most rational balance of waste rocks and cavities for leaving the rock in the mine is formed along the С 10 t seam. It has been determined that the full-fledged placement of rocks is limited by the scheduling peculiarities of mining the reserves along the seams, which are made for the complete cave-in technology of coal mining. Originality. For the first time, for one of the Western Donbass mines, the balance of formed waste rocks and potential underground cavities, dynamically changing in time and space, has been determined. Practical implications. The results obtained are useful for engineering new spatial planning solutions for the optimal development of mining operations with the maximum possible rocks stockpiling in the underground area of mines.

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“…A statistical analysis of the obtained regression equations for each of the responses was evaluated according to three criteria: homogeneity of variances, significance of the coefficients, and adequacy, which was checked using the Fisher criterion [9][10]. As a result of the experiment and regression analysis of obtaining the values of the coefficients are presented in Table 4.…”

Section: Y = B0 + B1x1 + B2x2 + B3x3 + B12x1x2 + B13x1x3 + B23x2х3mentioning

confidence: 99%

Selection of compositions of ceramic masses based on industrial wastes using mathematical planning methods

et al. 2020

Self Cite

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This paper reviews the issue of selecting the compositions of ceramic masses for the production of ceramic blocks made out of technogenic raw materials of a coal series using the methods of mathematical planning. The possibility of replacing classic clay raw materials with non-traditional coal technogenic raw materials (screenings of heaps), which are formed during the processing of heaps with the aim of extracting coal, is considered. The reasons for the growing interest in this technogenic raw material were the reduction of the base of high-quality clay raw materials, the large number of accumulated heaps, as well as the need to reduce the cost of production of ceramic blocks.

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Comprehensive Approach to the Processing of East Donbass Spoil Tip

Cited by 7 publications

References 2 publications

Features of Phasea Mineralogical Conversions when Burning Wall Ceramics on the Basis of Secondary Materials for Processing Coal Deposits of Eastern Donbass

Features of Phasea Mineralogical Conversions when Burning Wall Ceramics on the Basis of Secondary Materials for Processing Coal Deposits of Eastern Donbass

Research into balance of rocks and underground cavities formation in the coal mine flowsheet when mining thin seams

Selection of compositions of ceramic masses based on industrial wastes using mathematical planning methods

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