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The study concludes that the static classifier can be further improved and retrofit-able solutions can be applied to problems of outlet flow imbalance and poor fineness at the mill outlets. 展开 关键词: Coal Classification Cyclone Separator Coal Pulveriser Fluid Dynamics Multiphase Flow 被引量: ...
Since the microfracture evolution of coal samples is a random variation, the fracture evolution of coal samples can be viewed as a non-equilibrium statistical process, and the micro-unit intensity distribution is considered to obey the Weibull distribution, and its distribution density function is as...
It is the latter classification systems that will be discussed in this section. 1.4.1.2.1 Basic coal analysis Prior to discussing rank, type, grade, and classification systems of coal, a brief description of basic coal analyses, which classification schemes are based upon, will be provided. ...
A new classification of coal microcomponents based on microscopic features observable in reflected light is suggested. Primary basis of classification is nature of the original matter, namely its botanical nature and degree of coalification; and secondly on the degree of primary oxidation. According ...
The basic standard provides the basis for standardizing the content and format of data sources. For the basic data in the data standard system of coal processing plant, it is necessary to develop its classification and code standard, data element standard, and data model standard for the business...
The classification of coal resources assets is the basic and important work to carry out coal resources management; its reliability is the precondition to complete the work effectively. Four classification models are built according to the characteristics of coal resources assets. The models include cla...
By application of fuzzy set, a mathematical model of classifying coal deposit geological condition and its effectiveness have been developed. Case studies have been carried out, the integrated mould for comparison among different seam sections have been obtained. So a method for classifying the exent...
The prolonged action of elevated temperatures and pressure transform brown coals into hard coals and hard coals into anthracites. (In the Soviet classification system, which is used in the present article, the term “hard coal”[kamennyi ugol’]is applied to coals of rank higher than that of...
Classification of Coal In past peat, lignite, bituminous coal, and anthracite all were termed as coal. Although all are used as fuel, they differ in color, chemical structure, and physical characteristics. In 1850s a need for classification of coal was felt and scientists all over the Europe...