The relationship between the location characteristic values of the density composition and the washability of coal
Conference
·
OSTI ID:324834
- Shanxi Mining Inst., Taiyuan (China)
Because there exists a difference in density, raw coal can be separated into lower ash product and higher ash product by a gravity separator such as jig. Under the same separating conditions, if the density composition of coal is different, the organic efficiency of separation will be different, i.e the washability of coal will be different. The yield-densimetric curve of coal is similar to the curve of probability distribution function. The location characteristic values of probability distribution function can be used to illustrate the characteristics of the density composition of coal. The relationship between the location characteristic values of the coal density composition of coal including mean, mode, median, the first quartile, the third quartile and the organic efficiency of the gravity separation has been studied. A Weibull model that can be used to forecast the organic efficiency of coal preparation has been established and is described in this paper.
- OSTI ID:
- 324834
- Report Number(s):
- CONF-970931--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Geostatistical approach to predicting the washability characteristics of coal in situ
Sulfur reduction potential of the bituminous coals of Pennsylvania. [Extensive washability data for PA coals]
A mathematical model of distribution curve -- using the quartiles as parameters
Journal Article
·
Sat Aug 01 00:00:00 EDT 1981
· J. Int. Assoc. Math. Geol.; (United States)
·
OSTI ID:5324999
Sulfur reduction potential of the bituminous coals of Pennsylvania. [Extensive washability data for PA coals]
Technical Report
·
Sun Aug 01 00:00:00 EDT 1982
·
OSTI ID:5011090
A mathematical model of distribution curve -- using the quartiles as parameters
Conference
·
Tue Dec 30 23:00:00 EST 1997
·
OSTI ID:324833