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Transactions of the American Foundrymen's Society Volume 28 book

Transactions of the American Foundrymen's Society Volume 28 book

Transactions of the American Foundrymen's Society Volume 28 by American Foundrymen Meeting

Transactions of the American Foundrymen's Society Volume 28
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Author: American Foundrymen Meeting
Page Count: 192 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781231186282
Download Link: Transactions of the American Foundrymen's Society Volume 28
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ... time and a considerable amount of excess air. Again, where the coal is deposited in a moving stream of air, either this air must move at comparatively high velocity, in order to carry the comparatively dense body of dust until broken up, or else a volume of air in excess of combustion requirements must be used. Either horn of high velocity or excess air is objectionable. Like Breaking a Grenade j It appears safe to state that none of the "streamline" methods of feeding are capable of completely diffusing the coal dust uniformly throughout the entire volume of combustion air, or of accurately proportioning the amount of air to coal in a strict combustion mixture. Such a complete mixture can be had in an apparatus, designed especially for the purpose, wherein the volumes of coal and air are successively divided into various smaller volumes, and so handled as to create a large number of eddying currents of air within the apparatus, sufficient in number and strength of action to bring about complete diffusion of the dust particles within the air. All problems calling for rapid and wide diffusion, whether it be a bursting hand grenade, or the mere breaking up of a dust body, call for action from the inside out. On this principle an apparatus can be designed to diffuse a sufficient volume of dust to meet the large capacity and exacting requirements of the largest furnaces, calling for low discharge velocity and accurate control of combustion conditions. Our ideal condition, then, will be to conduct a certain amount of air within a volume of coal dust, and by there turning it loose, burst the particles apart in all directions. Then by subjecting this rough mixture to further treatment in an apparatus, creating a large number of eddying currents, we in...

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