Results 11 to 20 of about 577 (258)
MATEC Web of Conferences, 2019 A physical description of material grindability is proposed as a property of deformation and surface destruction of processed surface at the envelope removal.
Shumyacher Vyacheslav +3 more
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Grindability of Coal – the new approach [PDF]
Acta Montanistica Slovaca, 2005 The method of evaluation of grindability of hard coal and its blend is shown. The standard Hardgrove test is used as a base to work out this method. The essence of this method consists in the simulation of the milling process in a close circuit (mill ...
Barbara Tora
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Journal of the Fuel Society of Japan, 1950 筆者等は石炭の粒度分布を良く示す式として外国炭に就て報ぜられて居るP.RosinE篩目巾xの飾にて節つた時の筋上重量%, n, 6;常数なる式が本邦炭に亀何の程度適用し得るかを先づ検討し, 次に粉碎機としてBall millを用いた際各種の粉碎條件に応じ, 又炭種及び炭化慶の差に応じて常数n, bが如何に変化するかを実験的に求め, 更に現在石炭の粉碎性の表示法として用いられて居るA.S.T.M.のBall mill法, J.E.S.落下試験法, 回転試験法, 、Hardgrove法等は如何なる意味の竜のであるかを考察した。
Shoichiro Tachikawa, Shigeru Ikai
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A Study on the Hard Coal Grindability Dependence on Selected Parameters
Energies, 2021 A very important aspect of proper preparation of the coal mixture for the coking process is its appropriate grinding. One of the parameters describing the energy input required for grinding is the Hardgrove index.
Krzysztof Kogut +7 more
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Integral quality indicators of waste concrete for reuse [PDF]
Нанотехнологии в строительстве, 2021 Introduction. Waste concrete is one of the main heavy construction waste having good recycling prospects with regard to rational nature management related to reducing the consumption of natural resources.
Arkady M. Ayzenshtadt
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VOLUME BASED CLOSED-CYCLE HARDGROVE GRINDABILITY METHOD
Rudarsko-geološko-naftni Zbornik, 2019 This paper deals with the development of a volume based closed-cycle grindability test method based on the recently introduced Universal Hardgrove mill and procedure.
Gábor Mucsi +4 more
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The effect of microwave radiation on grinding kinetics by selection function and breakage function - A case study of low-grade siliceous manganese ores [PDF]
Journal of Particle Science and Technology, 2018 In this study, the effect of microwave radiation on grindability and grinding kinetics were investigated. Microwave treatment was performed using an oven with 1100 W power and 2.45 GHz frequency.
Monireh Heshami +2 more
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Influence of Preheating on the Grindability of Mono/Poli Mineral Ores [PDF]
JES: Journal of Engineering Sciences, 2023 In grinding practice, heterogeneous poli-mineral systems are more common than homogeneous mono-mineral system. The heterogeneity of raw materials in mineral beneficiation grinding circuit results by virtue of the varying properties of mineral ...
sherein A rizk
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Determination of the parameters affecting the grindability of coal surrounding rocks [PDF]
Journal of Mining and Metallurgy. Section A: MiningThis study investigates the grindability parameters of coal surrounding rocks (sandstone and siltstone) from the Zonguldak Basin using Hardgrove Grindability Index (HGI) and Bond Work Index (BWI) tests.
Aldı Ç., Yaralı O.
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Characteristics of Wet Grinding of Highly Loaded Coal Water Slurry [Translated]†
KONA Powder and Particle Journal, 2014 The wet grinding characteristics of CWM (Coal Water Mixture) at high concentrations was investigated by conducting batch preparation tests using a laboratory-scale ball mill.
Hayami Itoh +5 more
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