Results 31 to 40 of about 4,858 (225)
Treatment Technology of Roof Watering in Ditch Driving Roadway of Shallow Coal Seam
Meikuang Anquan, 2020 To study the treatment problem of the roof watering of the roadway during the ditch driving of the shallow coal seam, the topography and geological conditions at the ditch of the 4-2 coal centralized auxiliary transport roadway in Zhangjiamao Coal Mine ...
GAO Bin, JI Zhongkui, YANG Fan, ZHANG Chi, REN Zhizhi, LUO Ankun, XUE Xiaoyuan
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Aerated atomization of coal water slurry [PDF]
, 1989 In order to better understand the process of slurry atomization, it is important to observe the influence of fluid non-Newtonian rheological behavior on the spray formation process. As a first step, glycerin-water solutions have been atomized. This report describes findings of photographs taken during atomization. 19 figs.
Buckner, H.N. +2 more
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Combined Treatments of Underground Coal Slurry: Laboratory Testing and Field Application [PDF]
, 2021 During the coal mining process, underground water is generated from the longwall face. In the meantime, the coal cutting process would produce coal particles.
Xinguo Zhang +5 more
core +3 more sources
Sedimentation in Coal-Water Slurry Pipelining [PDF]
, 2000 In this chapter we present an overview of recent investigations on the problem of sedimentation related to the pipelining of a coal-water slurry. The two main aspects of the problem are the determination of the sedimentation velocity and the understanding and modeling of the dynamics of the sedimentation bed that accumulates on the bottom of the pipe ...
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Meitan xuebaoOne of the most important technologies for the effective and clean use of coal is gasification. Currently, one of the most advanced gasification technologies being employed extensively is large-scale water-coal slurry entrained flow gasification.
Jiyuan CHEN +6 more
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Meitan kexue jishuThe silicate-sulphoaluminate cement (PO−SAC) composite slurry has the advantages of short setting time, high early strength and good impermeability, and has broad application prospects in the treatment of coal mine water inrush.
Jianguo FAN +7 more
doaj +1 more source
Geofluids, 2018 Predrainage of coalbed gas by underground drilling is one of the main approaches for eliminating gas disasters in coal mines. Owing to the unsatisfactory sealing effect of conventional sealing materials, coalbed gas drainage boreholes face serious air ...
Guozhong Hu, Wenrui He, Changjin Lan
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Coal-water slurry atomization characteristics [PDF]
, 1994 The overall objective of this work was to fully characterize the CWS fuel sprays of a medium-speed diesel engine injection system. Specifically, the spray plume penetration as a function of time was determined for a positive-displacement fuel injection system.
Caton, J. A., Kihm, K. D.
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A novel 3-layer mixed cultural evolutionary optimization framework for optimal operation of syngas production in a Texaco coal-water slurry gasifier [PDF]
, 2015 Optimizing operational parameters for syngas production of Texaco coal-water slurry gasifier studied in this paper is a complicated nonlinear constrained problem concerning 3 BP (Error Back Propagation) neural networks. To solve this model, a new 3-layer
Cao, Cuiwen +5 more
core +1 more source
Synthesis of functionalized polyolefins in a new continuous bench‐scale reactor apparatus
AIChE Journal, EarlyView.Abstract In‐reactor functionalized polyolefins (FPOs), produced by molecular catalysts, are a new class of polymer materials with applications ranging from high performance adhesives to bitumen compatibilization. In this work, we disclose a procedure for the synthesis of FPOs in a new Continuous Bench‐scale Reactor Apparatus (COBRA).
Miloud Bouyahyi +7 more
wiley +1 more source