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NOTES ON THE OPERATION OF DIRECT FIRE TUNNEL KILNS 1
Author(s) -
Roehm V. J.
Publication year - 1925
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1925.tb16775.x
Subject(s) - kiln , environmental science , waste management , forensic engineering , engineering
The successful application of the direct fire car tunnel type kiln in firing of semivitreous chinaware is described. The bisque kiln firing to cone 9 one‐half down is 332 feet 11 inches long, the placing height at middle of crown being 6 feet and the placing width 5 feet 1 inch. The glost kiln operating at cone 5 has the same placing height and width as the bisque but the length is 301 feet 1 inch long. The ware is placed in saggers as formerly. Natural gas is used as fuel and is supplied to kiln through Maxon Premix burners; an auxiliary fuel oil system can be used in case the gas is not available. After a year's operation some of the important concliisions drawn are as follows:1 The heat distribution is not ideal. 2 There is no appreciable difference in labor cost a t this plant than in the older ones. 3 There is a considerable saving in fuel. 4 The sagger loss is much less than in the older type plants. 5 The direct fire tunnel kiln has proven siiccessful from the commercial standpoint in manufacturing semi‐vitreous china.