WEBJan 18, 2022 · The effects of PSD with efficient packing on powder flowability and selective laser melting process revealed in this work are important for understanding process uncertainties induced by feedstock ...
WEBSep 1, 2015 · A new method for evaluating packing efficiency of particle size distribution during coal water slurry preparation. Heping Li Xiaoyan Chen Wanyi Liu Zhiqiang Wu Gang Wang. Environmental Science, Engineering. 2020. Particle size distribution is a key problem in preparation of coal water slurry . Due to the large number of particles and irregular ...
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WEBDec 1, 2017 · The packing properties and the flow behaviour of all the coal powder samples were characterised in terms of compressibility and flow properties using an FT4 powder flow rheometer. Furthermore, the Brunauer, Emmett and Teller surface areas and the dispersive surface energies were determined using a surface energy analyzer.
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WEBNov 21, 2023 · Dispersants, serving as an essential raw material in the formulation of coal water slurry, offer an economical and convenient solution for enhancing slurry concentration, thus stimulating significant interest in the development of novel and efficient dispersants. This paper intends to illuminate the evolution of dispersants by examining .
WEBJan 15, 2024 · This paper explored the additional number of nanoparticles on powder packing characteristics. The adhesion mode of nanoparticles and its influence on the interparticle force in the system were discussed. ... the presence of fine particles in pulverized coal could restrict the movement of particles, leading to a decrease in the packing .
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WEBJul 3, 2023 · As a result of the irregular lamellar structures and high specific surface area, the addition of CG powder decreased packing density and water film thickness, leading to lower workability and higher viscosity. 2) The inclusion of CG powder decreased the earlyage compressive strength while increasing the . CRediT authorship contribution statement
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WEBMar 1, 2021 · Therefore, the evaluation of the packing efficiency of coal particles in wet preparation is still calculated according to the dry powder method. In the actual process .
WEBSep 1, 2015 · A new method for evaluating packing efficiency of particle size distribution during coal water slurry preparation. Heping Li Xiaoyan Chen Wanyi Liu Zhiqiang Wu .
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WEBJun 1, 2017 · Five bimodal mixtures were created by mixing fine powder with coarse powder with 73–27 (a ratio that is efficient in maximizing powder packing density ) or 27–73 weight ratios. As the bimodal mixture has been extensively studied in the prior literature with a large variety of different coarsefine powder mixing ratios, this work .
WEBJan 6, 2021 · Christoffer A. Masia et al. Converting raw coal powder into polycrystalline nanographite by metalassisted microwave treatment. NanoStructures NanoObjects, 2021 DOI: /
WEBApr 1, 2020 · The packing styles of N 1 N 2 N 3, N 2 N 3 N 4 and N 3 N 4 N 5 were evaluated and analyzed. ... coal powder can be completely filled into co arse coal powder. Due to the small p acking voids of ...
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WEBDec 3, 2020 · DOI: / Corpus ID: ; An indirect method for particle packing gradation evaluation of coal water slurry by wet preparation article{Li2020AnIM, title={An indirect method for particle packing gradation evaluation of coal water slurry by wet preparation}, author={Heping Li and Xiaoyan Chen and Wanyi .
WEBJun 15, 2022 · In this paper, the value of initial ratio of dead zone is set at according to dry powder packing experiments. ... which is measure from the CWS made by the same coal samples. The packing efficiency is calculated by compartment packing model from the data of PSD shown in Fig. 9 (a). The samples with a larger range of PSD and more .
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WEBJan 4, 2021 · Multipeaking gradation technology is an essential method for improving the slurry ability of coal particles. In this study, the coarse (150–300 μm), fine (54–74 μm), .
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WEBCoal dust is a finepowdered form of coal which is created by the crushing, grinding, or pulverization of coal rock. Because of the brittle nature of coal, coal dust can be created by mining, transporting, or mechanically handling it.. Grinding or pulverizing coal to a dust form before combusting it improves the speed and efficiency of burning, which makes .
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