The effect of differential crushing on liberation characteristics has been studied for a low volatile coking coal Indian origin through washability studies. Two parameters, namely “Index Washability” (IW) and “Near Gravity Material Index” (NGMI), are used to describe the ease washability. ROM Coal is crushed four different top sizes namely, 75mm, 25mm, 13mm 6mm.On basis calculated IW it observe...

The functional response to and recovery from coal-coking waste effluent was evaluated for sediment microbial communities. Twenty estimates of microbial population density, biomass, and activity were measured five times during a 15-month period. Significant effects on microbial communities were observed in response to both wastewater contamination and diversion of the wastewater. Multivariate an...

A numerical model of a tower boiler burning low calorific value and high-alkali coal was established; based on the jet rigidity flow field in furnace, effects air velocity volume combustion NOx emissions were studied. The optimal parameters obtained by simulation are applied to typical experimental boiler. results show that when SOFA operates at about 65 m/s, is obviously increased, temperature...

The recycling potential is being actualized due to the trends in production and use of powder liquid combustible materials from waste a mining enterprise cycle mining, enrichment processing (polymer packaging containers explosives, large tires rubber products during operation vehicles, coal coke breeze coking coal, oil vehicles mechanization equipment). In material under consideration, SWOT ana...

In the presence of various catalysts (TiCl4, AlCl3, H2SO4), process obtaining a coumarone-indene-carbazole resin (CICR), which is produced from liquid products coal coking, and its subsequent use for bitumen modification was investigated. The influence catalyst type on yield modifying properties CICR (change in thermoplastic adhesive after adding obtained resins to them) studied. effect amount ...

One of the most important methods to produce sponge iron is coal based reduction of iron ore. Direct reduction methods based on coal are being improved due to the abundance of coal sources and its lower cost in comparison with natural gas. Volatile materials in coal play an important role in the reduction of iron oxides. In this study, noncoking coal with high volatile materials from Iran and c...

OBJECTIVE To determine whether there was excess ill health in people living near a coking works, and if so whether it was related to exposure to coking works' emissions. DESIGN Populations varying in proximity to the coking works were compared with control populations. Health data were correlated with available environmental data. METHODS Analysis of routinely collected mortality, cancer re...