采空区浮煤自燃灾害严重影响了煤矿的安全生产。
In goaf the float coal spontaneous combustion disaster affects seriously the safe production of the coal mine.
开发高效浮选促进剂是改善难浮煤浮选效果的重要方法。
The development of high efficient accelerant for floatation is an important method to improve the floatation efficiency of difficult floated coal.
影响煤体热量积聚的主要因素有温度、浮煤厚度、空隙率和漏风强度。
The major effect factors of heat accumulating has temperature, float coal thickness, air leak intensity and voidage.
采空区浮煤自燃是煤矿的主要灾害之一，严重影响了煤矿的安全生产。
The spontaneous combustion of coal of gob is one of the major calamities, which seriously influences safety production of mine.
本论文结合综放面采空区浮煤自然发火的特点，运用煤自燃危险区域判定理论，确定了采空区自燃危险区域的判定条件和方法步骤。
Combined with coal characteristics in goaf of fully mechanized top-coal caving, determinant criteria and methods of hazard zone in goaf are determined by theory of coal spontaneous combustion zone.
本论文结合综放面采空区浮煤自然发火的特点，运用煤自燃危险区域判定理论，确定了采空区自燃危险区域的判定条件和方法步骤。
Combined with coal characteristics in goaf of fully mechanized top-coal caving, determinant criteria and methods of hazard zone in goaf are determined by theory of coal spontaneous combustion zone.
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