基于LabVIEW以及DSP实现任意跳汰周期的控制系统
发布时间：2018-07-16 10:19
【摘要】：跳汰选煤在选煤中占有重要地位,占全国煤炭入选量的70%左右。但是由于受各种条件的限制,使跳汰机选煤的分选效率较低,因此对现有跳汰设备和操作工艺的自动化水平的进一步优化具有重大意义。跳汰过程主要包括两个部分：一是原煤的分层,二是产品的分离。而原煤的分层是跳汰产品分离的前提条件,它直接影响着跳汰选煤的分选效果。原煤的分层是在垂直交流水流的作用下完成的,而分层的产生又是以创层的松散为前提。所以,对跳汰设备和操作工艺的自动化水平的进一步优化在跳汰选煤的发展和应用具有重要的意义。本文运用LabVIEW作为上位机发送控制命令,具有图形化的操作界面,下位机选用DSP28335芯片与上位机进行串口通讯,同时作为步进电机的控制器,通过步进电机控制隔膜从而实现不同的跳汰曲线,进一步通过高速摄像机来进行对跳汰曲线分析处理以检验是否达到所需的曲线。实验过程中通过负载的大小选取了步进电机的型号并完成了对步进电机出力的分析,设计了隔膜式跳汰机的外形及尺寸大小,并对隔膜式跳汰机进行了层次改进,进一步搭建了隔膜式跳汰机模型,为整个系统的实验打下了基础。本系统完成了硬件、软件的设计,并通过软件调试完成了上位机的编写,上位机能够与下位机通信成功,上位机的参数命令能够被下位机接收,下位机通过接收的参数命令进行波形输出,隔膜在齿条的带动下驱动水流做规律性的运动,从而对床层进行分选,通过实验进行了实际验证,并通过实验得到了不同的跳汰周期曲线,同时实现了对床层的分离,该系统在分选效果上取得了一定的效果。
[Abstract]:Jigging coal occupies an important position in coal preparation, accounting for about 70% of the national coal selection. However, due to the limitation of various conditions, the separation efficiency of jig coal preparation is low, so it is of great significance to further optimize the automation level of jigging equipment and operation technology. Jigging process mainly includes two parts: one is the stratification of raw coal, the other is the separation of products. The stratification of raw coal is the precondition of jigging product separation, which directly affects the separation effect of jig coal. The stratification of raw coal is completed under the action of vertical alternating flow, and the formation of stratification is based on the looseness of the creating layer. Therefore, it is of great significance to optimize the automation level of jigging equipment and operation technology in the development and application of jigging coal. In this paper, LabVIEW is used as the upper computer to send control commands, with a graphical operation interface. The lower computer uses DSP 28335 chip to communicate with the host computer and acts as the controller of the stepper motor at the same time. Furthermore, the diaphragm jig model is built, which lays the foundation for the experiment of the whole system. The system completes the design of hardware and software, and completes the programming of the upper computer through the software debugging. The upper computer can communicate successfully with the lower computer, and the parameter commands of the upper computer can be received by the lower computer. The lower machine carries on the waveform output through the received parameter command, the diaphragm drives the water flow to do the regular movement under the rack drive, thus carries on the sorting to the bed, has carried on the actual verification through the experiment,
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TD94;TP273
本文编号：2126078
[Abstract]:Jigging coal occupies an important position in coal preparation, accounting for about 70% of the national coal selection. However, due to the limitation of various conditions, the separation efficiency of jig coal preparation is low, so it is of great significance to further optimize the automation level of jigging equipment and operation technology. Jigging process mainly includes two parts: one is the stratification of raw coal, the other is the separation of products. The stratification of raw coal is the precondition of jigging product separation, which directly affects the separation effect of jig coal. The stratification of raw coal is completed under the action of vertical alternating flow, and the formation of stratification is based on the looseness of the creating layer. Therefore, it is of great significance to optimize the automation level of jigging equipment and operation technology in the development and application of jigging coal. In this paper, LabVIEW is used as the upper computer to send control commands, with a graphical operation interface. The lower computer uses DSP 28335 chip to communicate with the host computer and acts as the controller of the stepper motor at the same time. Furthermore, the diaphragm jig model is built, which lays the foundation for the experiment of the whole system. The system completes the design of hardware and software, and completes the programming of the upper computer through the software debugging. The upper computer can communicate successfully with the lower computer, and the parameter commands of the upper computer can be received by the lower computer. The lower machine carries on the waveform output through the received parameter command, the diaphragm drives the water flow to do the regular movement under the rack drive, thus carries on the sorting to the bed, has carried on the actual verification through the experiment,
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TD94;TP273
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