Results 51 to 60 of about 36,299 (243)
Study on mechanical properties of polymer cement slurry-coal interface transition zone
Meikuang Anquan, 2021 Advanced deep hole grouting reinforcement technology is proposed. The effects of VAE emulsion on cement-based materials were studied. The effects of VAE emulsion on the bonding strength between cement based materials and coal and the compressive strength
LIANG Hualei +5 more
doaj +1 more source
Underground mineral extraction [PDF]
, 1980 A method was developed for extracting underground minerals such as coal, which avoids the need for sending personnel underground and which enables the mining of steeply pitched seams of the mineral.
Miller, C. G., Stephens, J. B.
core +1 more source
Critical parameters for coarse coal underground slurry haulage systems [PDF]
, 1981 Factors are identified which must be considered in meeting the requirements of a transportation system for conveying, in a pipeline, the coal mined by a continuous mining machine to a storage location neat the mine entrance or to a coal preparation plant
Maynard, D. P.
core +2 more sources
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Under low reagent dosage, the flotation performance of diesel as a collector was enhanced, and the synergistic mechanism of diesel blended with oleic acid and CTAB was investigated. Results showed that compared to pure diesel, the oleic acid blended system (Blend A) increased clean coal yield by 81.52% to 92.24%, while the CTAB blended system (
Rui Shen, Wei Zhou, Huanhuan Shang
wiley +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Greenhouse gas (GHG) emissions have emerged as one of the most critical drivers of climate change; this is primarily due to high concentrations and long atmospheric life of carbon dioxide (CO2). For a significant amount of time, various biological processes such as microalgal cultivation, cyanobacterial systems, photosynthetic microorganisms ...
Sadhana Semwal, Harish Chandra Joshi
wiley +1 more source
Advances in Civil EngineeringUnreasonable treatment of coal-based solid waste and coal mining damage are important factors that cause negative environmental effects. Overburden isolated grouting, a green mining method, can realize solid waste emission reduction and coal mine ...
Chengwei Ma +3 more
doaj +1 more source
Application and prospect of coal gangue slurry filling technology
Meitan kexue jishuIn order to realize in-situ, green and large-scale disposal of coal gangue, coal gangue slurry filling technology, as a new filling technology, has been rapidly developed and applied in recent years.
Lei ZHU +6 more
doaj +1 more source
International Journal of Mining Science and Technology, 2020 The present work aimed to study the effect of slurry conditioning on flocculant-aided filtration of coal tailings by the analysis of filtration kinetics and filter cake structure.
Pengfei Hu +4 more
doaj +1 more source
Combustion of pipelineable coal-water slurries
, 1991 The use of liquids or fluids to transport coal through pipelines is not new, nor is the application of coal liquid slurries as fuels in industrial combustion systems. However, it does appear that there are a number of conflicting areas which preclude coals from performing well in a pipeline transportation mode and as a coal-liquid fuel (CLF).
H Whaley +3 more
openaire +1 more source
Transforming Coal Waste into Surface‐Engineered Carbons for Lithium–Sulfur Batteries
Batteries &Supercaps, EarlyView.Coal waste is transformed into surface‐engineered porous carbons that suppress polysulfide shuttling and boost Li–S battery performance. Slow redox kinetics and polysulfide shuttling hinder the practical deployment of lithium–sulfur (Li–S) batteries.
Jibril Abdulsalam +4 more
wiley +1 more source