煤港皮带运输称重系统的优化设计

发布时间：2018-03-17 04:21

本文选题：皮带秤　切入点：皮带运输机　出处：《燕山大学》2015年硕士论文　论文类型：学位论文

【摘要】：煤港中我们一般采用皮带运输机来运煤,在运煤前采用皮带秤来称重。皮带运输机和皮带秤就构成了煤港主要的称重运输系统,有时也称皮带系统。由于煤港环境恶劣,皮带系统常常受各种因素影响而出现故障,本文主在对皮带秤和运输机常见故障的分析基础上,总结了一套实用的优化设计方案。本文首先在对皮带秤和带式输送机结构原理等研究的基础上,针对皮带系统最常见的测速不准,皮带跑偏等问题提出了具体的优化方案。如本文通过利用光电传感器测速的方法来减少测速不准确问题的发生;通过液压自矫正装置来实现皮带跑偏的自动矫正;考虑利用RBF网络对称重传感器进行补偿,提高传感器测量准确度,对补偿效果进行了进行数据仿真分析,论证了RBF神经网络对称重传感器的补偿效果。利用神经网络,可更好地利用多传感器的数据,提高称重传感器的精度和稳定性。然后,对系统硬件进行了设计。在优化方案的基础上,采用西门子公司的PLC S7-300为控制单元,实现了系统的自动控制功能。从系统的整体结构和控制系统、皮带秤系统、变频驱动系统及保护系统这四个部分进行具体设计,包括各个设备的选型,必要的仪器接线图等。最后,主要对系统的软件设计进行介绍。皮带系统在运行时,除了需要硬件支撑外,软件是保证系统的稳定性与完备性必不可少的构成。基于上一章的硬件选型,我们的软件系统设计选用与西门配套的STEP7编程软件。STEP7软件是供西门子PLC300等设备编程、监控和进行参数设置等等的标准工具。具有硬件配置、参数设置、系统编程等的强大功能。在这一章的软件设计中,我们主要包括主程序设计,启动程序设计和故障保护程序这些方面,具体包括cpu扫描流程,皮带称重流程及部分程序片段的展示等。通过对各个故障的针对性的优化设计,从硬件到软件两个角度对整个系统进行搭建,减少系统故障的发生,节约能源,提高煤港输煤称重系统的作业能力。
[Abstract]:In coal ports, we usually use belt conveyors to carry coal, and before coal transportation we use belt scales to weigh coal. Belt conveyors and belt scales constitute the main weighing and transportation system of coal ports, sometimes also called belt systems. Because of the harsh environment in coal ports, The belt system is often affected by a variety of factors and failure, this paper mainly on the basis of the belt weigher and conveyor common fault analysis, This paper summarizes a set of practical optimal design schemes. Firstly, based on the study of the structural principle of belt scale and belt conveyor, this paper aims at the most common speed measurement uncertainty of belt system. In this paper, the method of photoelectric sensor is used to reduce the occurrence of inaccurate speed measurement, the automatic correction of belt deviation is realized by hydraulic self-correcting device. In order to improve the accuracy of sensor measurement, the compensation effect of symmetrical weight sensor based on RBF neural network is analyzed by data simulation, and the compensation effect of symmetrical weight sensor based on RBF neural network is demonstrated. The precision and stability of the weighing sensor can be improved by using the multi-sensor data better. Then, the hardware of the system is designed. On the basis of the optimization scheme, the PLC S7-300 of Siemens Company is used as the control unit. Realized the automatic control function of the system. From the overall structure and control system of the system, belt weigher system, frequency conversion drive system and protection system to carry on the concrete design, including the selection of each equipment, The necessary instrument wiring diagram and so on. Finally, mainly introduces the software design of the system. The belt system in operation, in addition to the need for hardware support, Software is an essential component to ensure the stability and completeness of the system. Based on the selection of hardware in the previous chapter, the STEP7 programming software .STEP7, which is matched with Simens, is used to design our software system for Siemens PLC300 and other equipment. Monitoring and parameter setting and other standard tools. Has hardware configuration, parameter setting, system programming and other powerful functions. In this chapter of software design, we mainly include the main program design, Start program design and fault protection program, including cpu scanning process, belt weighing process and part of the program segment display, etc. Through the targeted optimization of each fault design, The whole system is built from hardware to software to reduce the occurrence of system faults, save energy and improve the operation ability of coal conveying weighing system in coal port.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD528.1

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