Results 101 to 110 of about 5,615,470 (226)

Properties of novel bio-cementation slurry and its effectiveness in preventing and controlling coal spontaneous combustion

open access: yesMeitan xuebao
Coal spontaneous combustion poses a significant safety hazard during coal mining, leading not only to resource wastage and environmental pollution but also potentially triggering severe mine fire accidents.
Xiangming HU   +6 more
doaj   +1 more source

Study on stability of coal water slurry under different coal water slurry dispersants by using stability analyzer

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
Abstract The stability analysis of CWS by Turbiscan Lab stability analyzer not only can clearly observe the change of the supernatant layer in the slurry, but also can observe the change of the turbid area. It can objectively reflect the agglomeration and flocculation in the slurry, Settlement and a series of changes.
Lei Ge, Junguo Li
openaire   +1 more source

PIV study on spray field of coal-water slurry air-blast electrostatic atomization

open access: yes, 2014
In order to explore dynamic characteristics of coal water slurry charged particle in the high voltage electrostatic field, using particle image velocimeter (PIV), an electrostatic atomization experiment system consisting of a novel three-level Y-type ...
He, Hong-Zhou, 郑捷庆, Zheng, Jie-Q
core  

Structural evolution of coal sludge filter cake and optimization mechanism of combined chemicals in the process of filtration pressing

open access: yesMeitan xuebao
The structure of coal sludge filter cake has an important influence on the dewatering effect. In this study, the characteristics of the filter cake structure and its evolution law in the process of filter press dewatering were investigated by using the ...
Xiaomin MA   +4 more
doaj   +1 more source

Site tracing experiment on the diffusion range of regional grouting renovation under the coal seam floor aquifer

open access: yesMeitan xuebao
In recent years, to liberate coal resources from high pressure limestone water on the coal seam floor, North China Coalfields have generally adopted surface directional drilling technology to carry out regional grouting reinforcement and transformation ...
Yan GUO   +12 more
doaj   +1 more source

Utilization Slurry Coal-Water Fuel

open access: yes, 2014
The opportunity of technological and modified lignosulphonate wastes, process water, oxygenized brown coal with high content huminic acid (to 60 %) with alkali usage as plasticizer agent in the coal-water slurry (CWS) production technological process was checked. The CWS stability scheme in alkali additives interaction was suggested. The bituminous and
Baranova, Marina P.   +5 more
openaire   +2 more sources

Mechanisms of Effective Coal Water Slurry Atomization

open access: yes, 1983
The atomization behavior of additive free coal-water slurry (CWS) of 65 percent by weight coal content is investigated and compared with water atomization.
Sommer, Holger T.; Matsuzaki, Tasushi
core  

Properties of direct coal liquefaction residue water slurry: Effect of treatment by low temperature pyrolysis

open access: yes, 2016
Properties of direct coal liquefaction residue water slurry: Effect of treatment by low temperature ...
Yuchi Wei (13799714)   +8 more
core  

Coal Slurry Pipeline [PDF]

open access: yes, 1975
Coal Slurry ...
Mansfield, Mike, 1903-2001
core  

Dynamic characterization of water hammer in gangue fly ash slurry pipelines during valve closure

open access: yesScientific Reports
In the process of coal-filling mining, the gangue fly-ash slurry (GFS) needs to be transported over a long distance to reach the gobs. The abrupt closure of the valve during the transportation of GFS can result in a water hammer that significantly ...
Yuxin Hao   +4 more
doaj   +1 more source

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