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Browsing Articles by Author "BATOUCHE Toufik (Co-Auteur)"

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    Analysis and improvement of the fragmentation quality of blasted rock using digital image processing: the case of the Kef Lahmer quarry, N-E Algeria
    (Geomatics, Landmanagement and Landscape, 2024) BATOUCHE Toufik (Co-Auteur)
    The mining industry plays a significant role in the extraction and processing of various ore materials (phosphate, copper, iron, gold, aggregates and others), contributing to industrial and economic development. Rock fragmentation is a fundamental operation and a complex element in mining activities influenced by multiple parameters, including geological and geometric factors, explosive load parameters, and others related to the details of the execution of the blasting plan. The effectiveness of blasting depends on factors such as the geological structure, volume, optimal size of rocks to be blasted, and compliance with safety conditions. To achieve desirable outcomes, it is crucial to make informed decisions regarding the types and quantities of explo-sives to be used, along with other principal parameters of drilling-blasting design. Continuous evaluation of rock fragmentation is essential for optimizing blasting plans by contributing to the improvement of the quality-price ratio under favorable environmental and safety conditions. This study aims to analyze and enhance the quality of rock fragmentation resulting from blasting activities in the Kef Lahmar-Setif limestone quarry (northeast Algeria), which is characterized by significant rock mass fracturing. This fracturing will be carefully analyzed in order to arrive at an accurate blasting plan for the structure of the studied rock massif. As the aim of the research is to optimize the blasting plan to generate maximum gas pressure and minimize shock pressure due to the existing fractures in the rock mass. in order to test this hypothesis, we conducted sev eral blasting tests by modifying the charge rate of the explosives used (Anfomil and Marmanite III), while maintaining the same parameters in the blasting plan for each test. The goal was to achieve optimal fragmentation. The particle size of the blasted rock pile was analyzed using WipFrag software, which utilizes image analysis techniques
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    COMPOSITION AND PROCESSING OF SULPHIDE LEAD-ZINC ORES FROM CHAABET EL-HAMRA MINE (SETIF, ALGERIA)
    (Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 2021) BATOUCHE Toufik (Co-Auteur)
    Purpose. In order to fully exploit the metal and facilitate its method of processing, we need an accurate knowledge of its com position, granular distribution, and association with unimportant and penalizing elements that we would like to get rid of, com pared to the distribution of the element to extract by flotation method. Methodology. The present experimental work proposes an approach to the mineralogical, chemical and particle size character ization, several analyzes have been carried out by Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM/ EDS), Xray Diffraction (XRD), Optical Microscopy (OM), Particle SizeFraction Analysis (PSFA), and Xray Fluorescence (XRF). These analyzes were submitted on samples of leadzinc of different sizes as well as well prepared fine powder of this ore; the zinc content of the raw material is about 5 % Zn. Findings. The results obtained by the mineralogical characterization and the particle size analysis reveal a very varied and ir regular texture of the ore, consisting mainly of sulphides (sphalerite, galena, pyrite, marcasite), associated with carbonate gangue, mainly dolomite and calcite. The theoretical dimensions of the particles found in the fine grain size classes [-1 +0.053] mm. In addition, the conditions of the pulp using the following reagents: CuSO4 activator, PAX collector, CaO regulator and the pine oil foamed, along with a pH modifier between 10.5 and 12 (11.8 optimal), improve the content of sulphide minerals, and increased the concentrate of sphalerite (ZnS) by foam Flotation with a maximum recovery and economically appropriate content (54 % Zn concentrate). Originality. Depending on the results of the analysis performed and the complete collection of data obtained in the laboratory, we aim to optimize the process of treating leadzinc sulphide ore and give a more detailed reference source to specialists, researchers and metallurgists in field of mining in general and in the treatment of polymetallic leadzinc ore in the area studied in particular. Practical value. Benefit the values of beneficial minerals (concentrate of zinc and others sulphide), from different types of raw materials. The latter focuses on flotation as the main successful technique in the extraction of this type of leadzinc minerals, but it requires constant research and careful examination of its elements and values in order to excel in this field of polymetallic sul phide ore processing.