带式压滤机用于洗煤废水及煤泥脱水工程研究

ENGINEERING STUDY ON COAL-WASH WASTEWATER AND COAL SLIME DEWATERING BY BELT-FILTER PRESS

通过合理的工艺设计和筛选适合的絮凝剂 ,完成了带式压滤机用于洗煤废水及煤泥脱水的工程应用研究。结果表明 ,带式压滤机用于煤泥脱水 ,具有技术先进、处理量大、滤液清澈、滤饼含水率低 ,可使洗煤用水形成闭路循环。该研究对煤泥固体粒级分布、絮凝剂用量、进料浓度。

With the process design and selection test of flocculant,engineering study was carried out on coal wash wastewater and slime dewatering by belt filter press.It was shown that belt filter press can be well used in coal wash wastewater and slime dewatering with high continuous feed rates,clear filtrate,high solid concentration of sludge cake.Coal wash wastewater can be recycled almost completely in this process.Finally,the coal sludge particle size,flocculant usage,feed rates and concentration,and their affection to the filtering performance were also studied.