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Zhanar Omirbekova
  • Almaty, Almaty City, Kazakhstan
The paper deals with simulation of in-situ uranium leaching technological process, collecting data for forecasting and leaching process control. It provides numerical simulation of uranium in-situ leaching (ISL) using Comsol Multiphysics... more
The paper deals with simulation of in-situ uranium leaching technological process, collecting data for forecasting and leaching process control. It provides numerical simulation of uranium in-situ leaching (ISL) using Comsol Multiphysics software package application. Previous studies evaluated main hydrodynamic characteristics of wells and reservoirs, such as the coefficient of resistance and the saturation recovery; while this paper is concerned with determining the changes in process variables in the wells during operation.
In clause the technological model in-situ leaching uranium deposits are stated, settlement data for forecasting and are obtained managements of process leaching. This article provides a numerical simulation of the in-situ leaching (ISL)... more
In clause the technological model in-situ leaching uranium deposits are stated, settlement data for forecasting and are obtained managements of process leaching. This article provides a numerical simulation of the in-situ leaching (ISL) uranium using application software package Comsol Multiphysics. In preliminary studies, evaluation main hydrodynamic characteristics wells and reservoirs, such as the coefficient of resistance, the saturation recovery, and others can be determined by changes in process variables on the wells during operation.
The article is devoted to numerical modeling of uranium in-situ leaching process, which enables to assess the dynamics of the technological process. Efficient simulation of in-situuin-situ leaching is an urgent task, demanded by many... more
The article is devoted to numerical modeling of uranium in-situ leaching process, which enables to assess the dynamics of the technological process. Efficient simulation of in-situuin-situ leaching is an urgent task, demanded by many enterprises of the mining industry worldwide. Mathematical modeling, given in the article, describes the dynamics of in-situ leaching. It should be borne in mind that in-situ leaching has characteristics, in connection with which its use becomes specific, it requires some knowledge and tools for analysis and management process. Designed to be a conceptual model allows to take into account all the information about the geological environment, the geometrical properties of hydraulic parameters of solid state properties, including homogeneous and isotropic, fluid properties, boundary conditions.
Research Interests:
Constant and efficient operation of technological processes without incidents is of a paramount importance for any enterprise. Nevertheless, if any incident happens, the operation staff should be properly trained in order to avoid serious... more
Constant and efficient operation of technological processes without incidents is of a paramount importance for any enterprise. Nevertheless, if any incident happens, the operation staff should be properly trained in order to avoid serious consequences and such training should be as close to the reality as possible. Virtual training application (VTA) that we introduce by this paper can perfectly meet this target and can be widely used for effective staff training by modern companies and enterprises. This paper proposes VTA plans and specifications considering technical requirements and rules applied for production processes and training simulators. It elaborately presents how the simulation technology can be used based on the example of uranium in-situ leaching process analysis. Introduced VTA plans and specifications can help the training operator staff learn and simulate the mentioned above process and this knowledge can be obtained without interruption of the working process of an enterprise. Virtual simulator is based on a simulation model of the technological equipment, and the difficulty level of training and further development of the dynamics of the training developed with the help of artificial intelligence. Streszczenie. Ciągły i efektywny przebieg procesów technologicznych, bez występowania sytuacji nietypowych ma kluczowe znaczenie w działaniu każdego przedsiębiorstwa. Niemniej jednak, w takich przypadkach obsługa powinna być właściwie przeszkolona, co powinno zostać przeprowadzone w warunkach możliwie jak najbardziej zbliżonych do rzeczywistych. Niniejszy artykuł prezentuję aplikację wirtualnego trenażera (VTA – virtual training application), który może zostać szeroko wykorzystany w praktycznym szkoleniu personelu. W artykule zaprezentowano ponadto obejmowane przez VTA scenariusze działania, które biorą pod uwagę reguły i wymagania techniczne związane z danym procesem wytwórczym. Działanie VTA zostało pokazane na przykładzie technologii procesu ługowania uranu in situ. Zaimplementowane plany i specyfikacje pozwalają szkolonemu personelowi zrozumieć specyfikę wspomnianego procesu, co odbywa się bez jakiejkolwiek ingerencji w działanie przedsiębiorstwa. W trenażerze wykorzystano modele symulacyjne rzeczywistych urządzeń, a funkcjonowanie całości, dla różnych poziomów trudności trenażera, zostało zamodelowane dzięki zastosowaniu metod sztucznej inteligencji. (Aplikacja wirtualnego trenażera procesów technologicznych).
Research Interests:
—The paper deals with simulation of in-situ uranium leaching technological process, collecting data for forecasting and leaching process control. It provides numerical simulation of uranium in-situ leaching (ISL) using Comsol Multiphysics... more
—The paper deals with simulation of in-situ uranium leaching technological process, collecting data for forecasting and leaching process control. It provides numerical simulation of uranium in-situ leaching (ISL) using Comsol Multiphysics software package application. Previous studies evaluated main hydrodynamic characteristics of wells and reservoirs, such as the coefficient of resistance and the saturation recovery; while this paper is concerned with determining the changes in process variables in the wells during operation.
Research Interests:
– In clause the technological model in-situ leaching uranium deposits are stated, settlement data for forecasting and are obtained managements of process leaching. This article provides a numerical simulation of the in-situ leaching (ISL)... more
– In clause the technological model in-situ leaching uranium deposits are stated, settlement data for forecasting and are obtained managements of process leaching. This article provides a numerical simulation of the in-situ leaching (ISL) uranium using application software package Comsol Multiphysics. In preliminary studies, evaluation main hydrodynamic characteristics wells and reservoirs, such as the coefficient of resistance, the saturation recovery, and others can be determined by changes in process variables on the wells during operation. Introduction Currently the in-situ leaching (ISL) is a fundamental process for the extraction of many metals. At the same time there are a number of ISL technology modes, such as "saturated mode", mode of "pressure filtration", infiltration mode which have to be determined from the measured variables of the process.[1,2] in-situ leaching is a process in which there is a dissolution of the useful component by the chemical reagent in the place of ore body stratification followed by the removal of the formed compounds from the reaction zone by the moving stream of solvent. Leaching is a diffusion process, in which there is a transition of system components from a solid phase to a liquid phase. The factor characterizing the intensity of such processes is the difference between the concentrations of the solvent and leachable component in the layer adjacent to the surface of the solid particle and in the total volume of the liquid phase. The leaching process occurs in permeable ore host rock in which there is forcibly implemented the solvent filtration. Ore host rock is usually represented by the sand with a dash of clay and other minerals. Uranium minerals constitute hundredths and tenths of a percent; they have different shape and size, form films, sinters,
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