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TitleCyclone atomizer for briquet binder
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorVisman, J
SourceCanada Department of Mines and Technical Surveys, Mines Branch, Technical Paper no. 17, 1957, 14 pages, Open Access
logo Open Access
PublisherCanada Department of Mines and Technical Surveys
Mediaon-line; digital; paper
File formatpdf
Subjectsgeneral geology; geochemistry; Science and Technology; briquets; briquetting; asphalt; experiments
Illustrationsfigures; tables; photographs
Released1957 01 01; 2020 12 08
AbstractA description is given of a pneumatic cyclone nozzle for atomizing viscous briquet binder, such as molten asphalt, with the aid of steam, preferably superheated, or hot compressed air. The hot liquid binder is subjected to the shearing stresses created by steam escaping through the annular opening of the atomizer, and is dis integrated to a fine mist of droplets whose total surface area is of the same order of magnitude as the surface area of the briquetting coal. The cyclone atomizer can be installed in any briquetting plant of conventional design. Commercial tests showed that by producing a more homogeneous mix than does the usual emulsifier, an increase in the compressive strength of the briquets equivalent to the use of an additional one-half per cent of asphalt resulted. This enables a reduction in asphalt for a given required briquet strength with attendant improvement in the economics. The weight of steam consumed in the atomizer is higher than in the emulsifier at approximately 900 lbs. /hr. for a 25 ton/hr. briquetting unit, or about one-half of the weight of asphalt consumed. The overall consumption of steam, however, may be no more or even lower than when using the emulsifier because the steam supply to the preheater and/or fluxer can be reduced.

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