Results 21 to 30 of about 10,581 (221)

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   +1 more source

Gasworks [PDF]

open access: yes, 2008
The material imagination of the nineteenth century had to deal increasingly with what had previously been thought to be immaterial, or as good as, and with largely imaginary forms of material.
Connor, Steven
core   +2 more sources

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

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   +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

Magnetic seeding sedimentation (MSS) of coal slimes

open access: yesIOP Conference Series: Earth and Environmental Science, 2017
Magnetic seeding sedimentation (MSS), i.e. adding magnetic seeds and pre-magnetization for sedimentation, is a technique especially for sedimentation of fine slimes, improving the sedimentation performance by introducing the magnetic interactions between particles in a suspension and enlarging the apparent size of the fine particles.
Xiqing Wu, Tao Yue, Liang Dai
openaire   +1 more source

Method for extracting froth velocity of coal slime flotation based on image feature matching

open access: yesGong-kuang zidonghua, 2022
The local static characteristics of coal slime flotation foam image are similar. The dynamic characteristics of flotation foam image are needed for judging some complex working conditions.
GUO Zhongtian   +4 more
doaj   +1 more source

Experimental Study on Deashing of High Ash and Refractory Coal Slime by Classification Flotation

open access: yesKuangchan zonghe liyong, 2022
Aiming at a certain coal slime in Guizhou, the yield rate of -0.074mm class is 54.19%, the ash content is 40.55%, the yield rate of -0.045 mm class is 40.38%, the ash content is 40.79%, and contains a lot of pearl clay, Clay minerals such as kaolinite ...
Tianshen Lu   +3 more
doaj   +1 more source

Conditioning Circuit Analysis for Slimes Management in Quarries [PDF]

open access: yes, 2003
Driven by increasingly stringent environmental regulations on water usage, many European quarries are in the process of adding thickening circuits to their wash plants for managing clayey tailings. One of the critical components of this circuit is slurry
Akers   +19 more
core   +1 more source

Coal slime flotation foam image classification method based on semi-supervised clustering

open access: yesGong-kuang zidonghua, 2019
In order to solve problems of subjectivity, hysteresis and extensiveness existed in reagent amount addition of coal slime flotation in coal preparation plant depended on manual intervention, a coal slime flotation foam image classification method based ...
CAO Wenyan   +4 more
doaj   +1 more source

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   +1 more source

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