Results 51 to 60 of about 1,811 (137)

Value addition of coal fines and sawdust to briquettes using molasses as a binder

open access: yesSouth African Journal of Chemical Engineering, 2018
In this study, the co-briquetting of coal fines saw dust and molasses as a binder is explored as an option for value addition of the wastes generated in the various industries.
M.M. Manyuchi, C. Mbohwa, E. Muzenda
doaj   +1 more source

Numerical Study of the Respirable Coal Dust Removal Performance of a Vortex Ventilation System at an Excavation Face

open access: yesEnergies, 2018
Coal dust is one of the most serious issues in coal mines. The miners at an excavation face have a high potential for exposure to high concentrations of coal dust. The main method for removing coal dust is by ventilation.
Xiaofei Liu   +4 more
doaj   +1 more source

Stratospheric dust collection by DUSTER (Dust in The Upper Stratosphere Tracking Experiment and Retrieval), a balloon-borne instrument, and laboratory analyses of collected dust.

open access: yes, 2010
The subject of this work is focused on the study of stratospheric dust with DUSTER (Dust in the Upper Stratosphere Tracking Experiment and Retrieval) a balloon-borne instrument.
Ciucci, Alessandra
core  

Laboratory and field performance of a continuously measuring personal respirable dust monitor [PDF]

open access: yes
"The National Institute for Occupational Safety and Health (NIOSH), through an informal partnership with industry, labor, and the Mine Safety and Health Administration, has developed and tested a new type of instrument known as the personal dust monitor (

core   +1 more source

Experimental investigations of coal dust-inertant mixture explosion behaviors

open access: yes, 2011
An experimental investigation was carried out on coal dust-inertant mixture explosions. Tests of explosion severity and flammability limit were conducted by using the Siwek 20 L vessel and influences of ignition energy, coal dust calorific value, coal ...
Yuan, Jingjie   +5 more
core   +1 more source

Experimental research on flame propagation characteristics of coal dust combustion

open access: yesJournal of Measurement Science and Instrumentation, 2021
The presence of coal dust explosions in coal mining are significant safety hazards. This study mainly explores the flame propagation of coal dust combustion so as to provide a theoretical basis for the prevention and control of coal dust explosions.
LIU Yifei   +7 more
doaj  

Performance of a new personal respirable dust monitor for mine use [PDF]

open access: yes
A personal dust monitor (PDM) was developed to measure respirable coal mine dust mass to provide accurate exposure data at the end of a work shift. Additionally, the new monitor continuously displays near-real-time dust exposure data during the shift ...

core   +1 more source

Research on Low Concentration Polymer Dust Removal Foam in Coal Mine Boring Face

open access: yes, 2023
Abstract In order to solve the problems of high dust concentration, unsatisfactory dust removal efficiency and inefficient foam dust removal in underground coal mines, we have carried out experiments related to the preparation of excellent aqueous foam solution, and developed a kind of aqueous foam solution with a low concentration of polymers added ...
LU Zhongliang, LIU Juanjuan
openaire   +1 more source

Ann Occup Hyg [PDF]

open access: yes
A laboratory study was performed to measure quartz in coal dust using high-flow rate samplers (CIP10-R, GK2.69 cyclone, and FSP10 cyclone) and low-flow rate samplers [10-mm nylon and Higgins-Dewell type (BGI4L) cyclones] and to determine whether an ...

core  

Assessment of Water Retention Capacity of Non-Ionic and Anionic Fluorinated Dust Suppressants on Coal Dust

open access: yes, 2023
Wet-spray dust reduction technology is one of the many dust control measures used to address the underground coal dust hazard. The wettability and agglomeration effects between coal dust and dust suppression solution directly affect the dust reduction ...
Min Xu   +5 more
core   +1 more source

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