刮刀卸料离心脱水机设计（毕业论文）.doc

l 摘要 本文通过对国内外离心过滤技术研究现状的分析和亲身的现场时间工作经验总结，指出了离心脱水技术的重要性，和未来在该领域内需要开展的理论研究方向。文中描述了离心力场的基本特征，提出了提高分离因数的基本途径,对TLL—1030型离心机的结构、零部件和工作原理进行了细致的分析研究，并针对现场使用过程中出现的问题进行了原因分析。本论文在对筛筛篮和螺旋刮刀进行研究的基础上，对筛篮和螺旋刮刀进行改进设计，并对分配盘角度进行了改进。把螺旋刮刀的升角减小到20°，分配盘角度由原来的90°改为150°，并在其上增加加大导流叶片更利于煤的疏导，提高了处理效率。对传动系统中差速器部分改进使其结构更加简单效率更高。离心脱水机在工作时，如果进料量太大，或者进料浓度突然增加等原因造成沉渣量加大，导致离心机螺旋的推料扭矩和主机电流增加，若没有过载保护措施，就会导致差速器损坏。因此离心机必须有过载保护措施，以确保离心机可靠安全运行. 本机过载保护方式同时采用过电流保护和液力偶合器保护的方案。润滑系统采用电机驱动稀油集中润滑，润滑油从油箱经滤油器进入齿轮油泵，然后经主压油管进入多支油管，再经四个支油管进入各润滑点。 关键词：螺旋刮刀；分离因数；差速器；液力偶合器；过电流；稀油润滑 ABSTRACT This article through summarized to the domestic and foreign Centrifugal Filter engineering research present situation analysis and the oneself scene time work experience, had pointed out the centrifugaldehydration technology importance, with the future the fundamentalresearch direction which will need to develop in this gentrifugalism domain.Asked described the centrifugal force field basic characteristic,proposed the enhancement separation factor essential way. To the XLL-1,100 centrifuges structures, the spare part and theprinciple of work has ss appeared to carryon the reason analysis. The present paper in to sieves the basket and the spiral shaving knifeconducts the research in the foundation, to sieves thconducted the careful analysis research, andaimed at the question which in the field use procee basket and thespiral shaving knife carries on the improvement design, and has madethe improvement to the distributor disk angle. Angle reduces the spiral shaving knife 20°, the distributor diskangle by original 90° changes 150°, and increases in above enlargesthe stator vane favor the coal unblocking, enhanced the processingefficiency. Differential part of the drive system in a more simple structure to improve its efficiencyCentrifugal dehydration machine at work, if too much into the feed, or feed concentration caused a sudden increase in sediment volume increased, resulting in the pusher centrifuge screw torque and increase the