Results 1 to 10 of about 5,630,048 (185)

Experimental Research into the Ultrasonic P-Wave Velocity of Coal Slime Based Backfill Material

open access: yesApplied Sciences, 2023
To study the influences of different mix proportions of materials on the ultrasonic p-wave velocity of coal slime based backfill materials, influences of four factors on the p-wave velocity of specimens were investigated by designing orthogonal tests and
Baifu An   +5 more
doaj   +2 more sources

Combustion of Coal and Coal Slime in Steam-Air Environment and in Slurry Form

open access: yesEnergies, 2022
One of the ways to minimize anthropogenic emissions from coal combustion is to replace conventional schemes used for the introduction of coal dust into the furnaces of power plants through the injection of water-containing fuels.
Vadim Dorokhov   +2 more
doaj   +2 more sources

The relationship between permeability and pore structure of coal slime filter cake based on fractal characteristics [PDF]

open access: yesMeitan kexue jishu, 2023
Establishing the correlation between the complex microscopic pore structure characteristics of the filter cake and the macroscopic seepage behavior is an important basis for solving the difficulty of coal slime dewatering.
Zeyu FENG, Xianshu DONG, Ruxia CHEN
doaj   +2 more sources

Orthogonal experimental research on sensitivity of acoustic wave velocity of similar material of coal-rock

open access: yesGong-kuang zidonghua, 2017
In view of problem that current researches mostly focused on mechanical properties of similar material of coal-rock, but not change law of acoustic wave velocity, similar material of coal-rock was made by use of raw materials of coal slime, sand, cement ...
ZHOU Jin, WANG Leisheng
doaj   +2 more sources

Preparation of CaCl2-heat treated coal slime based composite catalytic material and its performance toward phenol degradation by activating peroxymonosulfate

open access: yes矿业科学学报, 2023
Based on the current situation of comprehensive utilization of coal slime in China and the urgent need for water pollution control in coal mining areas, this paper uses coal slime(CS)as raw material and CaCl2 as the activator, different proportions of ...
Wang Qizhou   +3 more
doaj   +1 more source

Research on Optimization Experiment of Preparing 13X Molecular Sieve

open access: yesKuangchan zonghe liyong, 2022
Coal slime was a solid waste generated from raw coal washing, with large output and serious harm. The 13X molecular sieve was prepared from Huangling coal slime by alkali fusion-hydrothermal method. Through orthogonal experiments, it was found that n(H2O/
Yucheng Si, Tao Wu
doaj   +1 more source

A fast detection method for slime water flocculation and sedimentation rate based on image grayscale recognition

open access: yesGong-kuang zidonghua, 2023
At present, there is a lack of effective online detection methods for important parameters such as mineral composition that affect the flocculation and sedimentation effect of slime water.
GENG Yanbing, WANG Zhangguo
doaj   +1 more source

Effect of concentrated brine on coal slurry stability and sedimentation

open access: yes矿业科学学报, 2020
In order to solve the problem of comprehensive utilization of concentrated brine in coal chemical industry, the flocculating settlement test was carried out by using concentrated brine instead of coagulant in coal chemical industry, and the effect of pH ...
Xu Hongxiang   +5 more
doaj   +1 more source

Extractions of size granding classes in undersize [PDF]

open access: yesE3S Web of Conferences, 2019
On the basis of averaging of 544 balances of grain-size screening products distribution of the largeness classes extraction coefficients are set in a subsize product at dry and wet preparatory screening of ordinary coal and shallow machine class ...
Poluliakh Oleksandr   +3 more
doaj   +1 more source

Notice of Retraction: Preparation and Effect on the Coal Slime Water of Poly-Ferric-Aluminum-Silicate-Sulfate [PDF]

open access: yes2011 5th International Conference on Bioinformatics and Biomedical Engineering, 2011
Poly-ferric-aluminum-silicate-sulfate was synthesized by using sodium silicate, ferric sulfate and aluminum sulfate as materials. With single factor analysis and orthogonal experiment, the optimum coagulation parameters of PFASS have also been discussed.
Xingjian Ren   +6 more
openaire   +1 more source

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