Results 11 to 20 of about 5,630,048 (185)

Microstructure and mechanical behaviors of coal gangue - Coal slime water backfill cementitious materials

open access: yesJournal of Materials Research and Technology, 2022
Coal gangue and slime water are difficult to dispose and utilize on a large scale, which could cause environmental pollution and waste of resources. Therefore, the co-treatment of coal gangue and slime water can serve as an environmentally friendly and ...
Lingling Shen   +4 more
doaj   +4 more sources

Rheological behaviors of coal slime produced by filter-pressing

open access: yesInternational Journal of Mining Science and Technology, 2018
It is an effective way to use coal slime as fuel for circulating fluidized bed boilers, which will not only solve its pollution to the environment, but also turn waste to treasure.
Zhaohui Dai   +3 more
doaj   +4 more sources

Quantitative investigation of moisture migration during microwave drying of coal slime dough through simulation and tracer analysis [PDF]

open access: yesScientific Reports
Moisture migration during the microwave drying process of coal slime is critical for improving drying efficiency and reducing energy consumption. Nevertheless, current methods for quantifying these migration behaviors remain insufficient.
Fei Wang   +5 more
doaj   +3 more sources

Flocculation Performance and Interfacial Adsorption Mechanism of Aluminum Hydroxide-Polyacrylamide in Coal Slime Water Treatment. [PDF]

open access: yesPolymers (Basel)
Effective treatment of coal slime water is essential for sustainable coal preparation plant operation but hindered by the stable suspension of fine, negatively charged particles. To address this, a novel star-shaped inorganic–organic hybrid polymer (aluminum hydroxide-polyacrylamide, Al-PAM) was synthesized via in situ polymerization.
Chang J, Xue J, Liang S, Zhao W, Li Z.
europepmc   +4 more sources

Aggregation Mechanism of Particles: Effect of Ca2+ and Polyacrylamide on Coagulation and Flocculation of Coal Slime Water Containing Illite [PDF]

open access: yesMinerals (Basel, Switzerland), 2017
Illite is one of the main components in coal slime water and it sometimes makes the water extremely difficult to clarify. In this study, the aggregation mechanism of coal and illite particles was investigated using the extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory and settling experiments of slime water containing coal and illite.
Guanghui Wang, Zhe Lin, Yali Kuang
exaly   +3 more sources

Insight into the Enhanced Removal of Water from Coal Slime via Solar Drying Technology: Dewatering Performance, Solar Thermal Efficiency, and Economic Analysis [PDF]

open access: yesACS Omega, 2022
In this work, solar drying technology was applied for the deep dewatering of coal slime to save thermal energy and reduce the dust produced during the hot drying process of coal slime. Solar drying technology is used to dry coal slime to realize its resource utilization.
Xin Guo   +8 more
doaj   +4 more sources

Effect of the Polymerized Titanium Ferric Sulfate (PTFS) Coagulant on Sedimentation of Coal Slime Water [PDF]

open access: yesMinerals, 2021
High efficiency slime water settlement is very important for ensuring washing water recycling in coal preparation plants. In order to improve the sedimentation of coal slime water, an iron ion-based coagulant was prepared by titanium ion complexation action using titanium sulfate as a main raw material, Fe3+ and NaH2PO3 as a stabilizer and NaHCO3 as an
Changsheng Shi   +4 more
openaire   +2 more sources

Research on influence of CPAM ionic degree on settling characteristics of high muddied coal slime water

open access: yesMeitan kexue jishu, 2023
In order to study the sedimentation characteristics and action mechanism of cationic polyacrylamide (CPAM) with different ionic degrees on the high muddied coal slime water, the particle size composition and mineral composition of the high muddied coal ...
FAN Youlin   +6 more
doaj   +2 more sources

Experimental research on low and strength characteristics of coal slime based cemented filling material [PDF]

open access: yesMeitan kexue jishu
To study the flow and strength characteristics of coal slime based backfill materials, orthogonal tests were used to design one cemented backfill material combining coal slime, high-water-content materials, cement, and fly ash.
Baifu AN   +5 more
doaj   +2 more sources

Toward Mechanism-Driven Control: A Soft-Sensor for Zeta Potential and Settling-Decisive Parameters in Coal Slime Water Treatment

open access: yesSeparations
Intelligent dosing in coal slime water treatment remains a challenge due to the lack of real-time and solid hardware-based measurement of key microscopic parameters governing the settling process, particularly zeta potential.
Jing Chang   +6 more
doaj   +2 more sources

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