Experimental investigation on the suppression of aluminum dust explosion by sodium carbonate powder

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 183, P. 568 - 579

Published: Jan. 13, 2024

Language: Английский

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Effect of surfactant liquid temperature on wettability of bituminous coal: An experimental and molecular dynamics simulation study

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 386, P. 122527 - 122527

Published: July 6, 2023

Language: Английский

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Research on the optimal parameters of wind curtain dust control technology based on multi factor disturbance conditions

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 434, P. 140196 - 140196

Published: Dec. 16, 2023

Language: Английский

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Study on inhibiting effects of melamine polyphosphate on pulverized coal explosion: Investigation from macro and micro perspectives

Fuel, Journal Year: 2023, Volume and Issue: 360, P. 130574 - 130574

Published: Dec. 16, 2023

Language: Английский

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Mechanochemical evolution of coal microscopic groups: A new pathway for mechanical forces acting on coal spontaneous combustion

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 925, P. 171471 - 171471

Published: March 6, 2024

Language: Английский

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Experimental and numerical simulation study on forced ventilation and dust removal of coal mine heading surface

International Journal of Coal Science & Technology, Journal Year: 2024, Volume and Issue: 11(1)

Published: March 12, 2024

Abstract In order to study the problems of unreasonable airflow distribution and serious dust pollution in a heading surface, an experimental platform for forced ventilation removal was built based on similar principles. Through experiment numerical simulation, field roadway spatial temporal evolution under conditions were determined. The can be divided into three zones: jet zone, vortex zone reflux zone. concentration gradually decreases from head rear roadway. Under conditions, there is unilateral accumulation dust, with higher concentrations away ducts. position equipment has interception effect dust. maximum error between test value simulation result 12.9%, which verifies accuracy results. research results provide theoretical guidance application technology coal mine.

Language: Английский

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Structural Characterization and Molecular Model Construction of Lignite: A Case of Xianfeng Coal

Energies, Journal Year: 2024, Volume and Issue: 17(5), P. 1049 - 1049

Published: Feb. 23, 2024

The object of the study is lignite. Analytical testing techniques, such as elemental analysis, 13C nuclear magnetic resonance (13C NMR) spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron (XPS), and high-resolution transmission electron microscopy (HRTEM), were used to acquire information on structural parameters aromaticity Xianfeng lignite 43.57%, aromatic carbon structure mainly naphthalene anthracene/phenanthrene. aliphatic dominated by cycloalkanes, alkyl side chains, hydrogenated aromatics. Oxygen present in ether oxygen, carboxyl, carbonyl groups. Nitrogen form pyrrole nitrogen quaternary nitrogen. Sulfur thiophene sulfur. According analysis results, molecular model XF was constructed. formula C184H172O39N6S2. 2D converted a 3D using computer simulation software optimized. optimized has remarkable stereoconfiguration, lamellae are irregularly arranged space. rings connected methylene, hypomethylene, methoxy, rings. In addition, simulated NMR spectra good agreement with experimental spectra. This shows rationality chemical model.

Language: Английский

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Construction of high-precision macromolecular model of Zhaozhuang anthracite based on microscopic level and optimization of surfactant applicability: Efficient control of coal dust

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: 195, P. 106762 - 106762

Published: Jan. 7, 2025

Language: Английский

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Effect of side chain functional groups of ionic liquids on improving wettability of coal: Simulation and experimental discussion

Energy, Journal Year: 2023, Volume and Issue: 285, P. 129453 - 129453

Published: Oct. 28, 2023

Language: Английский

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Cleaning and upgrading of low-rank coal using a novel rotary triboelectric separator with the polyvinyl chloride as friction medium

Fuel, Journal Year: 2023, Volume and Issue: 360, P. 130513 - 130513

Published: Dec. 12, 2023

Language: Английский

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