Substantiation and process design to manufacture polymer-concrete transfer cases for mining machines

Krupnik, L. A.; Yelemessov, Kasym; Beisenov, Baurzhan; Baskanbayeva, Dinara

doi:10.33271/mining14.02.103

Cited by 10 publications

(8 citation statements)

References 10 publications

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“…Removal of the landslide, as well as the extraction of waste rock on the upper tiers is carried out by a hydraulic inverted shovel type excavator, and the laying down of the slope with EK excavator. Removal of the rock mass is carried out by the dump trucks to the dump where they are unloaded and placed by means of the bulldozer [23][24][25]. To remove the landslide, it is necessary to form a road, to lay down the power line and drive the EK excavator to the place of the landslide to the upper tiers.…”

Section: Recommendations For the Obtained Data On The Stability Of The Dump Slopesmentioning

confidence: 99%

Determination of economically viable option of liquidation the consequences of external dump deformation

et al. 2021

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The safety factors for different variants of operation development were obtained, on the basis of which the technical and economic indicators were established and the most expedient way of restoration of dump operations in conditions of the formed landslide was chosen. The solutions were proposed for the external dump No 2 of the Central Ore Mining and Processing Enterprise (COMPE), that allow to continue its future operation. When working in the conditions of the formed landslide, three variants of the further dump operation are modeled: the first one - with landslide removal and unloading of the upper dump horizons, the second one - without landslide removal and involvement of disturbed lands in land allotment, the third one - with the landslide loading. Based on the built sections of the dump and defined physical and mechanical properties, the stability factors were obtained for different options of the operation development, which made it possible to determine the appropriate option to eliminate the effects of the dump slide deformations. As a result of the calculations, the cost flows for each of the proposed options of the formation of the end contour of the dump No 2 are determined.

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Section: Recommendations For the Obtained Data On The Stability Of The Dump Slopesmentioning

confidence: 99%

Determination of economically viable option of liquidation the consequences of external dump deformation

et al. 2021

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“…In this case, basic and time-constant area of underground low-potential heat extraction is formed with the help of different use of heat exchangers [50][51][52][53][54]. Definitely a special attention must be paid for chose the materials for pumps design [55][56][57].…”

Section: Alternative Coal Power Sector and Other Sectors For Gas Hydrates Energy Supplyingmentioning

confidence: 99%

Gas hydrates technologies in the joint concept of geoenergy usage

et al. 2021

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The paper represents the analysis, which has helped to establish the usage of gas hydrate technologies in the methane conversion. This gas could be obtained in different ways. Possibilities and sources for the gas obtaining have been demonstrated. Use of other environmentally friendly sources to support operation in such systems in terms of joint energy complex has been considered. The necessary kinetic connections to provide operational sustainability of all the constituents have been given. The approach helps evaluate quantitatively the priority of its physicochemical transformations to obtain gas hydrates artificially. It is possible to transport methane at considerable distances when it is solidified. Actually, in this case there is no necessity to build costly compressor stations and pipelines for its transportation to consumers. The approach is extremely important for mining regions as it helps prolong the operating period and working out of the abandoned and off-balance coal reserves. In this case, it is proposed to apply special gasification technologies tending to maximum methane recovery. The proposed solutions give the possibility to define the trends of our further research. They will be highlighted in the following authors’ studies.

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“…Many studies are devoted to the development of the composition of nanofilled polymer materials [ 44 ] and coatings [ 45 , 46 , 47 ], their application in various fields of technology [ 48 ], and the reuse of polymers after processing [ 49 , 50 , 51 ]. For the rational choice of the composition of nano-containing polymer materials and technological modes of their manufacture [ 52 , 53 ], tests were performed under different types of loads [ 54 ].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Technological Parameters of the Process of Forming Therapeutic Biopolymer Nanofilled Films

et al. 2022

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The prospects of using biopolymer nano-containing films for wound healing were substantiated. The main components of biopolymer composites are gelatin, polyvinyl alcohol, glycerin, lactic acid, distilled water, and zinc oxide (ZnO) nanoparticles (NPs). Biopolymer composites were produced according to various technological parameters using a mould with a chrome coating. The therapeutic properties of biopolymer films were evaluated by measuring the diameter of the protective effect. Physico-mechanical properties were studied: elasticity, vapour permeability, degradation time, and swelling. To study the influence of technological parameters of the formation process of therapeutic biopolymer nanofilled films on their therapeutic and physico-mechanical properties, the planning of the experiment was used. According to the results of the experiments, mathematical models of the second-order were built. The optimal values of technological parameters of the process are determined, which provide biopolymer nanofilled films with maximum healing ability (diameter of protective action) and sufficiently high physical and mechanical properties: elasticity, vapour permeability, degradation time and swelling. The research results showed that the healing properties of biopolymer films mainly depend on the content of ZnO NPs. Degradation of these biopolymer films provides dosed drug delivery to the affected area. The products of destruction are carbon dioxide, water, and a small amount of ZnO in the bound state, which indicates the environmental safety of the developed biopolymer film.

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Substantiation and process design to manufacture polymer-concrete transfer cases for mining machines

Cited by 10 publications

References 10 publications

Determination of economically viable option of liquidation the consequences of external dump deformation

Determination of economically viable option of liquidation the consequences of external dump deformation

Gas hydrates technologies in the joint concept of geoenergy usage

Optimization of Technological Parameters of the Process of Forming Therapeutic Biopolymer Nanofilled Films

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