CUT FUEL COSTS IN THE LIGHTWEIGHT AGGREGATE INDUSTRY

This article shows how the use of proper equipment in the lightweight aggregate industry decreases fuel consumption. The heat consumption of a typical 1000 ton-day lightweight aggregate kiln is estimated to be 4,004,215 Btu/ton of product. When operating at reduced capacity, the heat consumption is increased to approximately 4,180,918 Btu/ton. The same kiln with the addition of a grate cooler at full capacity shows a heat consumption of approximately 2,716,356 Btu/ton. In addition to this fuel saving, the grate cooler permits the material to be conveyed directly to storage on rubber belts, thereby eliminating labor used to operate the front-end loader or clam shell. Users of grate coolers have profited by increased production in the range of 15 to 20 percent, which is attributed to better burning zone control, which is a function of a more stable draft and secondary air temperature. Improvement of kiln internals with a properly designed lifter section produces even greater fuel savings. The heat consumption of the 1000 ton/day kiln with grate cooler and lifter section is approximately 2,152,265 Btu/ton.

  • Supplemental Notes:
    • Presented at the 76th Annual Meeting of the American Ceramic Society, Chicago, 30 April 1974.
  • Corporate Authors:

    American Ceramic Society

    65 Ceramic Way
    Columbus, OH  United States  43714
  • Authors:
    • Biege, N W
    • Cohen, S M
  • Publication Date: 1975-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00125004
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 18 1975 12:00AM