基于PLC跳汰机风阀控制器设计.docx

xx理工大学 毕业论文(设计) 设计说明书 题目：基于PLC跳汰机风阀控制器 学院：矿业工程学院 班级：采矿工程xx班 姓名：xx 指导教师：xx 完成日期： 20xx年 06月 16日 PAGE PAGE 1 基于plc的跳汰机风阀控制器 摘要 跳汰选煤作为目前煤炭行业应用较多的选煤方法，提高其分选精度有着极其重要的作用，跳汰机风阀作为跳汰机的关键部位，对跳汰机的运行有直接影响。而在当前跳汰机的数控风阀通常采用手动调控方式且风阀控制精度偏差较大。因为跳汰司机需要依据自身经验，通过对入料性质，给料量，风压等变化，从而对风阀参数不断调整，导致操作频繁，而分选质量也受到了极大干扰。在对风阀的控制操作中，因对其动作的频繁，使其故障频率大大提高，对分选的效果产生了不可避免的影响。因此，提高跳汰机选煤效果必然需要对风阀的控制进行改进，提高其控制精度，实现其自动控制势在必行。 如何实现风阀的高精度控制是现在风阀控制的重点研究方向，在对跳汰机的相关特性进行一定了解后，并对跳汰机风阀的控制原理有了足够的了解，我们设计了基于PLC的跳汰机风阀控制方案，通过对跳汰机风阀所需参数的计算设计，利用定时中断实现对跳汰机跳汰周期四个时期的控制，实现了对跳汰机风阀的较好的控制。 关键词： 跳汰选煤;跳汰机;风阀控制器; plc  Jigger Valve Controller Based On Plc ABSTRACT Jigging coal industry as the current application of more coal cleaning methods to improve the accuracy of their separation has an extremely important role as a key valve jigger jigger site has a direct impact on the operation of the jig. In the current CNC Jig damper usually manual damper control methods and control precision large deviations. Because the jig driver needs based on their own experience, by the nature of the feed, the feeding amount, air pressure and other changes, which constantly adjust the parameters of the damper, causing frequent operation, sorting quality has been greatly disturbed. In the control operation of the damper, due to frequent their action to greatly improve fault frequencies of sorting effect produced inevitable impact. Therefore, improving Jigging effect will need to be modified damper control, improve the control precision, to achieve its automatic control is imperative. How to achieve high-precision control damper is now the focus of research damper control, the relevant characteristics of jigger a certain understanding, and jump control principle jig dampers have sufficient understanding, we designed based jigger valve control scheme plc, through the valve jigger calculate design parameters required to use the timer interrupt to realize the jig jig cycle control four times, the realization of jigger