关键词: 配合煤, 粒度组成, 型煤, 焦炭

Abstract: It was studied the treatment methods of coal powder in coal blend affect on bulk density and coke quality under the moisture of 2%. The result showed that after the coal powder is separated and molded，the coal blend will have the highest bulk density，coke cake will have the minimum shrinkage in wide direction and coke cracks increase，the mass percentage of >40 mm coke greatly decreases and the coke abrasion resistance is improved；It is also found that after coal powder being removed from the coal blend，the coke cake will have maximum shrinkage，the mass percentage of >40 mm coke increases；coke strength after reaction（CSR）slightly increases and other indices are at moderate level when the coal blend is charged directly into the oven after being dried

Key words: Coal blend, Grain size classification, Coal briquette, Coke