自動鏈排爐爐排的外形類似皮帶運輸機。煤由上煤機送進煤斗,再從煤斗內依靠自重落到爐排上,隨爐排自前后緩慢移動。煤閘板的高度可以調節,以控制煤層的厚度。空氣從爐排下面送入,于煤層運動方向相交。煤在爐膛內受到輻射加熱,依次完成預熱、干燥、著火、燃燒、直至燃盡。灰渣則隨爐排移動到后部,經過擋渣板(俗稱老鷹鐵)落入后部灰渣斗由刮板出渣機排除。
鏈排爐的種類很多,按其結構形式一般可分為鏈帶式、橫梁式、鱗片式、傾斜式和往復式等;其中,鏈條式爐排和橫梁式爐排因其結構的優越性、使用壽命長和操作的高機械化等特點,被廣泛應用于煤泥、煤炭烘干領域,并取得良好的烘干效果。
Travelling Grate Stoker
Travelling Grate Stoker is a full automatically grate stoker with coal fire burner,it’s very similar to the beit conveyor from the profile view.The fuel (coal) the slag is fed/deslagged by scraper conveyor or lifter.There are several models of traveling grate stoker:Chain Grate Stoker,Cross Girder Grate Stoker,Flake Type Grate Stoker,Reciprocating Grate Stoker,etc.And the chain grate stoker and cross girder grate stoker are widely used for coal/coal sludge drying due to the high degree of mechanization and long using life.