Results 31 to 40 of about 5,145 (216)

Impact of brown coal dust on the organic matter in particle-size fractions of a Mollisol [PDF]

Organic Geochemistry, 1996
Peer ...
Schmidt, M. W. I., Knicker, Heike, Hatcher, Patrick G., Kögel-Knabner, I.   +3 more
openaire   +2 more sources

Study on distribution law of coal dust concentration-particle size in fully mechanized mining face of Shoushan No.1 Mine

, 2023
In order to solve the problems of serious dust pollution and difficult dust removal in fully mechanized coal mining face, we conduct research on the concentration and particle size field of dust in the fully mechanized mining face of Shoushan No.1 Mine ...
LI Xinlong, YANG Yang, HU Yating
core   +1 more source

Effects of intrinsic properties, particle size, bulk density and specific gravity on thermal properties of coal dusts

Environmental Science and Pollution Research, 2022
Abstract Thermal properties of pulverized coal govern the heat transfer and greatly influence the coal dust explosion and spontaneous combustion processes. This study measures the thermal properties of five coal samples at six distinct particle sizes using an advanced Thermal Property Analyzer.
Aashish Sahu, Devi Prasad Mishra
openaire   +2 more sources

Numerical Simulation of the Tar Mist and Dust Movement Process in a Low-Temperature Dry Distillation Furnace

Journal of Chemistry, 2020
In the low-temperature dry distillation of low-rank coal, the important liquid product of coal tar is produced, but its quality and utilization rate are degraded by entrained dust.
Qiuli Zhang, Xiangrong Hui, Long Yan, Min Luo, Wenru Feng, Jun Zhou, Xinzhe Lan   +6 more
doaj   +1 more source

Analysis on the Characteristics of PM2.5 Emissions from Coal-fired Power Plants in Jilin Province [PDF]

E3S Web of Conferences, 2023
The thermal power industry is the largest coal consumer, and the contribution of its air pollutants to PM2.5 has become a hot topic of public concern, which is worthy of in-depth study.
Liu Yi, Zhu Baoyu, Zhao Liang, Wang Jian, Li Hongyan   +4 more
doaj   +1 more source

Comprehensive evaluation of potential coal mine dust emissions in an open-pit coal mine in Northwest China [PDF]

, 2021
Coal mining in China is continually increasing, and the associated emitted coal mine dust is of growing environmental and occupational concern. In this study, deposited coal mine dust (DD) was analysed in three different regions of an active, highly ...
Moreno, Natalia, Moreno, Teresa, Oliete Dominguez, Ana, Kelly, Frank, Trechera, Pedro, Zhuang, Xinguo, Dominguez, Ana Oliete, Li, Jing, Shangguan, Yunfei, Córdoba, Patricia, Querol, Xavier, Li, Baoqing   +11 more
core   +1 more source

Temporal and spatial distribution and prevention of dust in mining area based on digital fractal principle

矿业科学学报, 2022
In order to reduce the harm of dust dispersion in open-pit coal mine to the mining environment and the damage of personnel and equipment, this paper carried out the research on dust migration, distribution and treatment in open-pit coal mine by taking ...
Zhao Hongbao, Liu Shaoqiang, Kang Qinrong, Li Yue, Jiang Dongmei, Wu Tong   +5 more
doaj   +1 more source

Experimental study of surfactants’ performance for suppressing coal dust with respirable size

, 2023
Long-term exposure to coal dust can lead to severe health problems in coal workers, including Coal Workers\u27 Pneumoconiosis, making effective control of coal dust in underground mines essential.
Guang Xu, Zhao, Zidong, Morla, Ramakrishna, Ping Chang, Apurna Ghosh, Xu, Guang, Ramakrishna Morla, Zidong Zhao, Chang, Ping, Ghosh, Apurna   +9 more
core   +1 more source

The influence of the coal dust composition on the propagation speed of the combustion front of the coal dust with an inhomogeneous particle distribution in the air [PDF]

Компьютерные исследования и моделирование, 2018
The problem of the combustion of a gas suspension with an inhomogeneous distribution of particles over space occurs exists for the coal dust suspension combustion in combustion chambers and burners.
Kseniya Mikhailovna Moiseeva, Alexey Yurjevich Krainov   +1 more
doaj   +1 more source

Comparative study of the explosion pressure characteristics of micro- and nano-sized coal dust and methane–coal dust mixtures in a pipe

International Journal of Coal Science & Technology, 2020
Coal dust explosion accidents often cause substantial property damage and casualties and frequently involve nano-sized coal dust. In order to study the impact of nano-sized coal on coal dust and methane–coal dust explosions, a pipe test apparatus was ...
Bo Tan, Huilin Liu, Bin Xu, Tian Wang
doaj   +1 more source