4 — Feeding capacity 88 t/h Max feeding size ≤80mm Application Commonly used in mining operations construction pharmaceutical manufacturing gravel and aggregate processing industries; coal powder cement limestone shale coal gangue rare earth sand and other materials are continuously supplied and transported to next various
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— Coal gangue produced during coal mining and processing [1 2] is one of the most extensively produced solid wastes in China [1 3] accounting for approximately 10%‒20% of raw coal production [] The accumulation of coal gangue causes serious environmental social and economic problems in the coal mining area [] Heavy metals
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— This paper proposes a modified YOLOv4 model named GYOLO for coal gangue recognition with the aim of reducing model parameters improving calculation speed and reducing equipment requirements To achieve this the paper optimizes the feature extraction network structure by using linear operation instead of traditional convolution to
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— The core components of the equipment for acquiring X ray transmission images of coal and gangue consist of X ray source of model CISSY16 of Weijie Technology Co Ltd and detector of model CISTCQ16 of DT Beijing Co Ltd as presented in Fig 1 To be specific the input voltage is AC220V/50 Hz the source tube voltage is 160 kV the
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— In this investigation six groups of cemented coal gangue fly ash backfill CGFB samples with varying amounts of kaolin 0 10 20 30 40 and 50% instead of cement are prepared and their
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— The aggregate is composed of coal gangue sourced from Daizhuang Coal Mine Shandong China Coal gangue is typically employed as a filling aggregate in coal mines with a maximum particle size of 25 mm 1 in frequently requiring preliminary crushing and screening via jaw crusher [14] The CPB for coal mines belongs to the
— Zeolite derived from coal based solid wastes coal gangue and coal fly ash can overcome the environmental problems caused by coal based solid wastes and achieve valuable utilization In this paper the physicochemical properties of coal gangue and coal fly ash are introduced The mechanism and application characteristics of the pretreatment
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— 1 Introduction Coal gangue is the solid industrial waste discharged in the processes of coal mining and washing accounting for about 15 20 % of coal production [1] [2] Based on incomplete statistics the accumulated storage of coal gangue in China has exceeded 600 million tons and continues to escalate at a pace of 300 350 million tons
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— The coal gangue CG was obtained from Datong of Shanxi province and the spent industrial zeolite ZSM 35 zeolite was the waste from a methanol synthetic process of the petrochemical industry Synthesis of ultramarine blue pigments The CG sample was washed with deionized water DW dried and then sifted by a 50 mesh
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— The studied coal series kaolin from Yichang city Hubei province China is the hard kaolin ore associated with the coal which is commonly known as gangue that is color mineral of gray and dark When the coal is to be mined and processed a great deal of the gangues is discarded into the tailing dam which waste mineral resources and pollute
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— The aim of this work was to investigate the dispersibility of kaolinite rich coal gangue in rubber matrix the mechanical properties and thermal stability of coal gangue/styrene butadiene rubber SBR composites and to compare these properties to those of the same coal gangue but had undergone thermal activation and modification
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— The mineralogy thermal properties crystallinity and phase transformation of coal series kaolin were also determined to investigate the activation procedure mechanism 2 Materials and Raw coal series kaolin The raw coal series kaolin RCK used in this study was obtained from the Yichang region in Hubei province China
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DOI / Corpus ID 97717439; Effect of calcination condition on the microstructure and pozzolanic activity of calcined coal gangue article{Zhao2016EffectOC title={Effect of calcination condition on the microstructure and pozzolanic activity of calcined coal gangue} author={Cao Zhao and Cao Yongdan and
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