INVESTIGATION AND ANALYSIS OF FROZEN COAL HANDLING PROBLEMS

The winters of 1976-77 and 1977-78 impacted large areas of the United States, particularly the midwestern and northeastern regions, with subzero temperatures and snow that severely disrupted electrical power generation. Coal supply lines, yard handling and internal coal processing were affected by long periods of subfreezing temperatures and abnormal precipitation. An unusual sequence of weather caused storage piles to freeze to depths of several feet. Loaded hopper cars froze throughout, creating, in effect, 100-ton ice cubes. Difficulties in reclaiming and processing the frozen coal often exceeded processing capability and forced derating, loss of complete capacity, of some of the largest coal-burning power generating stations. This report covers the unusual difficulties experienced and the actions of the affected coal producers, transporters and users to alleviate future problems. The objective of this report is to define the nature and extent of frozen coal handling and burning problems at generating stations, mine sites and transfer points. Site surveys consisted of visits to 13 power plants or utility power companies representing approximately 60 coal-fired electrical generating stations, mine sites and transfer points. The specific problems at each site were investigated. Discussions with operating and management personnel emphasized corrective actions in effect or being considered. The final task was to present technically and economically feasible solutions and to present viable areas of research to alleviate problems with frozen coal.

  • Corporate Authors:

    Energy Interface Associates, Incorporated

    Palos Verdes, CA  United States 
  • Publication Date: 1979-11

Media Info

  • Pagination: 129 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00319820
  • Record Type: Publication
  • Source Agency: Energy Research Abstracts
  • Contract Numbers: ET-78-C-01-3184
  • Files: TRIS
  • Created Date: Oct 27 1980 12:00AM