太西选煤厂三分区关键设备集控系统设计 大学论文.doc

摘要 伴随着世界上工业自动化水平的迅速提高，选煤行业也在发生着日新月异的变化，尤其作为用煤产煤大国的我国来说，选煤过程的自动化显得更为重要，我国政府也一直在关注着选煤行业的发展，使得我国的选煤企业不断地在发展壮大，其突出表现在：自动化程度高，设备可靠、系统简单、操作人员少等特点。在自动化程度较高选煤厂中， 生产的集中控制系统是降低损耗，节省能源、提升效率、减少人员的基本保障。选煤厂的自动化程度主要体现在其集中控制系统上，集中控制系统中的设计方案是很关键的，一套设计比较合理、系统稳定、 性能可靠的集控系统， 再加上正确的操作和及时的维护，对提高选煤厂的生产效率、减少建设投资起着非常重要的作用。与此同时选煤技术也随之在不断的改善。本文是以太西选煤厂三分区关键设备为研究对象，控制关键设备的启停以及跳汰选煤过程中跳汰机电磁风阀进气期、排气期的调节控制。 关键词：跳汰机； 电磁风阀； PLC； 控制系统； 组态王 ABSTRACT With the rapid increase in world industrial automation levels , coal industry is also undergoing rapid change, especially as Chinas major coal-producing countries of the coal , the coal preparation process automation is even more important , our government has been concerned about the the development of the coal industry , making China s coal enterprises continue to develop and grow in its outstanding performance in : high degree of automation , reliable equipment , the system is simple, less operator characteristics. Coal preparation plant at a higher degree of automation , centralized production control system is to reduce the loss, save energy , improve efficiency and reduce basic security personnel. CPP mainly reflected the degree of automation in its centralized control system , centralized control system design is critical , a more reasonable design , the system is stable , reliable centralized control system , coupled with the proper operation and timely maintenance of the coal preparation plant to improve production efficiency and reduce capital investment plays a very important role. Meanwhile coal technology also will be constantly improved. This is the third partition Ethernet West CPP key equipment for the study, as well as start and stop control critical equipment jigging process jigger of solenoid valve intake , exhaust phase adjustment control . Keywords : Jig ; electromagnetic valve ; PLC; control systems ; kingview  目 录 1绪论 1 1.1选煤现状 1 1