压滤设备在选煤厂的应用现状及展望  

Application status and prospect of pressure filter in coal preparation plant

作　　者：陈晨[1] 闵凡飞[1] 陈帅[1] 孙迎林 杜佳[1] 刘春福[1] 

机构地区：[1]安徽理工大学材料科学与工程学院,安徽淮南232001

出　　处：《洁净煤技术》2015年第6期43-46,55,共5页Clean Coal Technology

基　　金：国家自然科学基金资助项目(51174006)

摘　　要：为提高压滤设备的煤泥压滤效果,对比分析了选煤厂常用煤泥压滤设备的优缺点及应用现状,分析了影响压滤效果的主要因素,并对压滤设备在煤泥水处理方面的发展趋势进行展望。板框式压滤机结构简单、应用广泛,具有对物料适应性强,滤饼含湿率低,固相回收率高等优点,但其结构及材质等问题限制了其发展。带式压滤机设计了多段脱水区,脱水效率高,滤饼水分低,但需要安装一套独立的入料系统来稳定其入料。快开式隔膜压滤机在传统压滤机基础上进行了强高压流体挤压脱水、隔膜压榨脱水以及通过强气流穿流滤饼脱水的改进设计,具有滤饼水分低、成饼效果好、安全节能可靠等优点。未来压滤设备应向大型、高效、自动化方向发展,并开发新型过滤介质,研究工艺流程简化、无需入料预处理系统的连续压滤机,提高压滤设备的智能化程度。To improve the effects of slime pressure filter,the advantages,disadvantages,application status,influencing factors of pressurefilter commonly used in coal preparation plant were analyzed. The frame filter press had the advantages of simple structure,wide applica-tion,strong adaptability,low moisture and high recovery of solid phase,while the structure and material limited its further development. Thebelt filter press had multi-step dehydration process which improved dehydration efficiency,while the belt filter press needed a separatefeeding system to stabilize feeding quantity. Based on the traditional pressure filter,the quick-operating diaphragm filter press had moredewatering ways,which had the high pressure fluid squeeze,diaphragm squeeze and the improving design of airflow passing through fil-ter cake dehydration. The advantages of the filter had lower moisture,good molding,reliable safety and saving energy,etc. The developmentof filter equipment should focus on large-scale,high efficiency,automation. A new type of filter medium should be developed,the processshould be simplified,no-feeding system of continuous press filter should be designed,the degree of intellectualization should be enhanced.

关 键 词：压滤设备 压滤效果 固液分离 滤饼 

分 类 号：TD462[矿业工程—矿山机电]