Abstract:

 It is discovered through the study on the stamp-able property of 6 kinds of coal with different coalification degrees that the stamp-able properties of the coals with different coalification degrees have very great differences and the anthracite with medium coalification degree has better stamp-able property. Meanwhile it is found that the most suitable stamping pressure intensity is about 30MPa after the effects of stamping pressure intensity, moisture content and grain size composition on coal cake property are investigated with gas coal and fat coal as study subjects. Each of these kinds of coal has its optimum moisture range and the grain size composition has very obvious influence on coal cake property.