In order to quantitatively describe the difference of optimum active and inert ratio of various metamorphic grade coking coals, the rule of coke micro-strength index （MSI）, determinated by adding different proportio...In order to quantitatively describe the difference of optimum active and inert ratio of various metamorphic grade coking coals, the rule of coke micro-strength index （MSI）, determinated by adding different proportions of inert content to ten kinds of single coal, changing with active and inert ratio has been investigated. Three kinds of change rule of the MSI of ten kinds of single coal changing with active and inert ratio have been obtained in the research. It has been demonstrated that Gauss curve model is the optimal model to describe the optimum active and inert ratio of different metamorphic grade coals. On this basis, the optimum active and inert ratio of different metamorphic grade coals can be given.展开更多
The variation regularity of coke strength was investigated in terms of the genetic factors and petrographic parameters of coal in collaboration with the technical properties of coal. A concept of inert holding ratio o...The variation regularity of coke strength was investigated in terms of the genetic factors and petrographic parameters of coal in collaboration with the technical properties of coal. A concept of inert holding ratio of coal was proposed. There is an optimal inert holding ratio for different ranks of coals for making coke with highest combined strength. The additive property of inert holding ratio under normal conditions was demonstrated with actual examples of coal blending.Thus it is possible to predict the combined strength of coke through reflectance, content of inert components and caking index diagram system.展开更多
文摘In order to quantitatively describe the difference of optimum active and inert ratio of various metamorphic grade coking coals, the rule of coke micro-strength index （MSI）, determinated by adding different proportions of inert content to ten kinds of single coal, changing with active and inert ratio has been investigated. Three kinds of change rule of the MSI of ten kinds of single coal changing with active and inert ratio have been obtained in the research. It has been demonstrated that Gauss curve model is the optimal model to describe the optimum active and inert ratio of different metamorphic grade coals. On this basis, the optimum active and inert ratio of different metamorphic grade coals can be given.
文摘The variation regularity of coke strength was investigated in terms of the genetic factors and petrographic parameters of coal in collaboration with the technical properties of coal. A concept of inert holding ratio of coal was proposed. There is an optimal inert holding ratio for different ranks of coals for making coke with highest combined strength. The additive property of inert holding ratio under normal conditions was demonstrated with actual examples of coal blending.Thus it is possible to predict the combined strength of coke through reflectance, content of inert components and caking index diagram system.
