EDITOR,—Meijers et al presented a very interesting study on mortality of Dutch coal miners. Most of the coal miners, 3367 out of 3790 (89%), had radiological manifestations of coal workers’ pneumoconiosis (CWP). All the coal miners had an increased mortality due to ischaemic heart disease (IHD) in all four periods of follow up when compared with the total male population in the Netherlands. The...

The objective of this study is to identify the most suitable portions of the C1 coking coal seam in the North Block of the East-Parvadeh coal deposit (Central Iran), according to ash and sulfur values, using C-N fractal modeling. Based on the C-N log-log plots, different geochemical populations were evaluated based on their sulfur and ash content. They were then divided into five populations ea...

Electrostatic Precipitators (ESP) are most important device used to control the pollution by collecting dust particles present on flue gases. In power plants, Coal used in Indian thermal power stations is of inferior grade, at power plant flue gas is often treated with a series of chemical process and scrubbers, having low calorific value (3500-4500)kcal/kg and high ash content due to drift ori...

Abstract In coal fired power plants, Bituminous grade C is received through wagons from mines, unloaded, and separated as sized dust. Coal stored in stockpiles of around 22000 square metres that have been specified for storage. The size each stockpile 15’ length, 10’ width, height the temperature locality 38 °C, with summer temperatures reaching 42 °C. Spontaneous combustion occurred more than ...

R. Ganguli, J. C. Yingling, J. Sottile, Dept. of Mining Eng. and R. Kumar, Dept. of Electrical Eng. University of Kentucky, Lexington, KY 40506 ABSTRACT The capability for on-line measurement of the quality characteristics of conveyed coal now enables mine operators to take advantage of the inherent heterogeneity of those streams and split them into wash and no-wash stocks. Relative to processi...

As part of the Periodic X-ray Scheme of the National Coal Board (NCB), a comparison is made between the previous and new films of all miners who were face-workers on the former occasion, five years earlier. This assessment is made by distributing the films randomly to all the NCB readers. This paper compares the rank of coal mined in each colliery with each colliery's percentage prevalence of p...