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- W66544069 abstract "The lignite used for Phase I of the project was a Texas lignite from the Martin Lake mine obtained from the stockpile for the Martin Lake Power Plant of the Texas Utilities Generating Company. The power requirements for the fluid-energy mill were determined from the measured steam (or air) temperatures, pressures and pressure drops and the lignite flow rate. The instrument locations for the tests are shown on Figure 1. All of the instruments were connected to a microcomputer via an analog input interface board. Data were recorded on disks periodically throughout the tests. Appropriate calibration procedures were followed to assure that reliable data were being obtained. The combined grinding/drying tests were conducted in Vicksbuth, MS at Ergon, Inc.'s fluid-energy-mill facility. both steam and air were used as grinding fluids. With steam, tests were used as grinding fluids. With steam, tests were run with the following temperatures maintained inside the pulverizer: 310/sup 0/F, 350/sup 0/F, 400/sup 0/F, 488/sup 0/F. The materials from the grinding/drying tests have been analyzed. Tests included particle size distribution, density distribution, proximate and ultimate analyses, ash mineral analyses, electron microscope pictures, angle of repose and equilibrium moisture tests. These data have been correlated with the dryingmore » temperatures. The pulverized material was separated into different particle size groups with an air classifier. The samples from these tests were used to determine if one particle range had a higher ash content than the others. Very little difference in ash content was noted. Fluids at 1.2, 1.3, 1.4 and 1.6 specific gravities were used in a centrifuge to separate the ultrafine lignite into different density groups.« less" @default.
- W66544069 created "2016-06-24" @default.
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- W66544069 date "1986-07-01" @default.
- W66544069 modified "2023-09-27" @default.
- W66544069 title "Ultra fine grinding of low-rank coal. Progress report, April-June 1986" @default.
- W66544069 hasPublicationYear "1986" @default.
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