Search results
Results from the WOW.Com Content Network
A drawer, putter (Northumberland), hurrier (Yorkshire), or waggoner is a person, usually a boy or young man who pushes tubs of coal from the coal face to the pit eye. [6] [15] Before 1842 women did this type of work in some coalfields. Drift. A drift is an underground road between seams; [6] to be distinguished from drift mining. Dudley
Download QR code; Print/export Download as PDF; Printable version; ... Sub-bituminous coal; Bituminous coal, or black coal This page was last edited on 1 March 2021 ...
[3] [4] These were intended to emulate a high-quality anthracite coal, such as that from the Cynheidre measures. This involved blending a mixture of coals from different grades and colliery sources. Phurnacite used the following mix: [4] Bituminous coal, 25%; Steam coal, 45%; Dry steam coal, 22%; Pitch, 8%; Early briquettes were large and brick ...
Bituminous coal is a particular rank of coal, as determined by the amount and type of carbon present in the coal and the amount of energy it can produce when burned. [2] It is higher in rank than sub-bituminous coal but lower in rank than anthracite. [3] Bituminous coal is the most abundant rank of coal. [3] [2]
Coal refuse is distinct from the byproducts of burning coal, such as fly ash. Coal spoil stones. Piles of coal refuse can have significant negative environmental consequences, including the leaching of iron, manganese, and aluminum residues into waterways and acid mine drainage. [3] The runoff can create both surface and groundwater ...
Smokeless coal is more efficient than a conventional open coal fire indoors because the high working temperature is released into the room as infrared radiation, as can be judged by the bright red color of a mature fire. The hot gases produced are lost up the chimney, thereby reducing efficiency just as in an open coal fire.
The search for two workers, following the collapse of a shuttered Kentucky coal processing facility, trudged into a fourth day with hopes of a rescue looking "grim," officials said Friday.
The alternative was to wash and size the existing soft coal to make it burn hotter and cleaner, and ensure that all coal sold in St. Louis was of this variety. In February 1937 a smoke ordinance was passed creating a "Division of Smoke Regulation in the Department of Public Safety", forcing larger businesses to burn only clean coal and setting ...