fine coal

n
that portion of a coal sample being subject to a washability study that is smaller than the predetermined particle size, generally between 2.36 mm (No. 8 USAStandard Sieve Series) and 9.5 mm (3⁄8 in.) round in diameter, which is specified in Test Method D4371.
DISCUSSION — This same particle size breakpoint should then be used in subsequent washability studies of the same material samples from the same location for the same application. This breakpoint is determined by the analyst or the person designing the test procedure as the point that best suits the application. This fine-coal fraction may be further sieved (generally by wet sieving) to produce additional size fractions, each of which is processed through the desired specific gravity solutions. D4371

ASTM D121-09a Standard Terminology of Coal and Coke. 2014.

Look at other dictionaries:

  • coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …   Universalium

  • Coal-water slurry fuel — (CWSF or CWS or CWF) is a fuel which consists of fine coal particles suspended in water. Presence of water in CWS reduces harmful emissions into the atmosphere, makes the coal explosion proof, makes use of coal equivalent to use of liquid fuel (e …   Wikipedia

  • Coal slurry — consists of solid and liquid waste and is a by product of the coal mining and preparation processes. It is a fine coal refuse and water. Mining generates enormous amounts of solid waste in the form of rocks and dirt. This refuse is used to dam… …   Wikipedia

  • Coal breaker — A coal breaking plant, depicted on a postcard in 1907. A coal breaker was a coal processing plant which broke coal into various useful sizes. Coal breakers also removed impurities from the coal (typically slate) and deposited them into a culm… …   Wikipedia

  • Coal preparation plant — A coal washer in Eastern Kentucky A coal preparation plant (CPP) is a facility that washes coal of soil and rock, preparing it for transport to market. A CPP may also be called a coal handling and preparation plant (CHPP), prep plant, tipple, or… …   Wikipedia

  • Coal grade —   This classification refers to coal quality and use.   • Briquettes are made from compressed coal dust, with or without a binding agent such as asphalt.   • Cleaned coal or prepared coal has been processed to reduce the amount of impurities… …   Energy terms

  • Coal slurry impoundment — A coal slurry impoundment consists of solid and liquid waste and is a by product of the coal mining and preparation processes. It is a fine coal refuse and water. Mining generates enormous amounts of solid waste in the form of rocks and dirt.… …   Wikipedia

  • Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …   Wikipedia

  • Coal — (k[=o]l), n. [AS. col; akin to D. kool, OHG. chol, cholo, G. kohle, Icel. kol, pl., Sw. kol, Dan. kul; cf. Skr. jval to burn. Cf. {Kiln}, {Collier}.] 1. A thoroughly charred, and extinguished or still ignited, fragment from wood or other… …   The Collaborative International Dictionary of English

  • coal basins — Coal Coal (k[=o]l), n. [AS. col; akin to D. kool, OHG. chol, cholo, G. kohle, Icel. kol, pl., Sw. kol, Dan. kul; cf. Skr. jval to burn. Cf. {Kiln}, {Collier}.] 1. A thoroughly charred, and extinguished or still ignited, fragment from wood or… …   The Collaborative International Dictionary of English

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.