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Flat roof burners

Fig. 4.7. Roller kilns with top- and bottom-fired small, medium-velocity burners. Type E flat flames above the ware would permit a lower roof and assure more even sidewise heat spread. Upflred burners from below are not wise for fear of crumbs falling into the burners. Radiant tubes can be used above and below the rollers and ware to protect the loads from contact with poc. Courtesy of North American Mfg. Co. Fig. 4.7. Roller kilns with top- and bottom-fired small, medium-velocity burners. Type E flat flames above the ware would permit a lower roof and assure more even sidewise heat spread. Upflred burners from below are not wise for fear of crumbs falling into the burners. Radiant tubes can be used above and below the rollers and ware to protect the loads from contact with poc. Courtesy of North American Mfg. Co.
Recommendation 8. Use more short heating zones and side-fired burners to help maintain the burner wall temperature very high during maximum firing rates. Flat-flame roof burners also can help maintain nearly constant across-fumace temperatures throughout the maximum heat transfer period. The benefit will come from increased A r as needed to control load temperature in many small zones in stead of a few large zones. [Pg.165]

Rotary furnaces cannot be end fired, but they can be roof fired with type E flat flame burners or with a sawtooth roof. They may be side fired on the outside only, or inside and outside with a donut design. [Pg.198]

The sawtoothed roof furnaces sometimes had several zones practically im-fired, but they at least had some firing even with reversed gas flow. Furnaces side fired, or roof fired with flat-flame (type E) burners had burners all along the walls or roof. Sawtoothed roof furnaces may have cost less, but with large loads and one fixed baffle, control was difficult. Regardless, a move to sawtooth roofs proceeded because of less cost. [Pg.255]


See other pages where Flat roof burners is mentioned: [Pg.155]    [Pg.155]    [Pg.155]    [Pg.81]    [Pg.153]    [Pg.354]    [Pg.447]    [Pg.453]    [Pg.81]    [Pg.122]    [Pg.71]   
See also in sourсe #XX -- [ Pg.245 ]




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