|Document ID (ISN)||46044|
|ISSN - Serial title
||0409-2961 - Bezopasnost' truda v promyšlennosti
|Convention or series no.
||Kačan V.N., Jakovlev V.S., Makal'skij L.M.
||Danger of electrified dust aerosols
||Opasnost' ėlektrozarjažennogo pylevogo aerozolja [in Russian]|
||June 1985, No.6, p.37-38. Illus.
||The breaking up of rocks, as in mechanised coal mining, is accompanied by the formation of electrified dust aerosols. Corona discharges between electrified aerosols or between aerosol clouds and earthed bodies (metal objects, roofs, etc.) can, under certain conditions, cause an explosion of methane or airborne flammable dust. Criteria for the assessment of hazards due to electrostatic fields generated by the flow of electrified aerosols are the maximum allowable voltage (for corona discharges) and the potential of the field in the workings (for spark discharges). A calculation formula for maximum field potential is given. Initial data (total and specific charge of a dust cloud, dimensions and density of the cloud) and the estimated danger of methane or coal-dust explosion are tabulated.
||coal dust; coal-dust explosions; methane; determination of explosive limits; explosion prevention; coal mining; protection criteria; static electricity
||explosions; mathematical analysis; explosion research; explosion hazards
||D - Periodical articles
|Broad subject area(s)
||Mining and quarrying
Aliphatic and alicyclic hydrocarbons