PROJECT TO DEVELOP AND DEMONSTRATE METHODS TO ELIMINATE FROZEN COAL HANDLING PROBLEMS. STATUS REPORT I
For too many years, problems associated with frozen coal have plagued the companies who mine it, the companies who handle it in transit and the utilities and other industrial concerns that finally burn it. But never before has the magnitude of the frozen coal problem been as great as it is today because of two primary factors, i.e. (1) the majority of coal currently transported and used has been ground to a very fine mesh that absorbs water readily, thus providing more surface area for freezing, and (2) the substantially increased importance of coal, indeed, the now critical necessity for more coal to be used in displacing dangerously uncertain foreign oil supplies that currently account for 50 percent of our daily domestic oil consumption. Frozen coal problems can and do have a devastating effect upon the ability to provide energy from coal during harsh winter months when it is most needed. The majority of these problems have been involved with removing frozen coal from rail cars. To allay the problem, numerous techniques have been tried, all with some measure of success. As an example, certain chemicals have been sprayed on the coal; another common treatment has been widespread use of thaw sheds, which, whether electrically or gas-fired, are all energy intensive, time consuming, hard on rail equipment and expensive to operate over long periods of time. From sledge hammers and crow bars to gas-fired jets and electric thaw sheds, available mechanical de-icing methods often damage coal handling equipment, are time consuming and, therefore, very expensive when demurrage losses must be added to significant investment and/or operating costs.
UNITED COAL COMPANYBRISTOL, VA USA
- Publication Date: 1980-9-15
- Pagination: 30 p.
- TRT Terms: Additives; Antifreeze; Bulk cargo; Bulk cargo handling; Cargo handling; Chemicals; Coal; Coal industry; Coal terminals; Deicing; Freezing; Freight traffic; Frozen cargo; Heating; Loading and unloading; Open top cars; Thaw
- Old TRIS Terms: Bulk coal; Cargo heating; Freeze conditioning additives; Unloading processes
- Subject Areas: Freight Transportation; Marine Transportation; Materials; Railroads;
- Accession Number: 00330647
- Record Type: Publication
- Source Agency: Energy Research Abstracts
- Contract Numbers: AC22-80PC30076
- Files: TRIS
- Created Date: May 21 1981 12:00AM