基于PLC的冶炼厂矿石供料系统.doc

基于PLC的冶炼厂矿石供料系统 摘 要 随着社会的发展，冶炼厂的规模也随之扩大，对矿石的需求量大大提高，传统的供料是一种半自动化的系统，已经满足不了冶炼厂的需要。 对传统供料控制系统进行了认真的分析与研究后，结合相关理论和技术，制定出一套由PLC为控制核心的皮带传输供料控制系统。为了实现供料系统的稳定运行，处理诸如皮带跑偏、打滑及撕裂等问题，在主电路中用传感器检测故障信号，软件中调用相应传感器检测到的故障信号处理子程序并执行处理。 运用皮带运输线进行矿石供料大大提高了工作效率。在PLC中应用子程序的方式，不仅便于实现多种运行方式，而且大大提高了程序的可维护性和可靠性。 关键词：PLC，矿石供料系统 Based On The Plc Metallurgical Plant Material Systems For Removing Ore ABSTRACT The traditional ore feed system of metallurgical plant is a half-automation system based on relay connect and manual work. But along with the development in scale, the ore requirement of metallurgical plant increases greatly. The traditional ore transfer system can’t meet the needs of these metallurgical plants any more. This paper worked out a suitable feeding system control program through serious analysis and research. In order to implement the optimal control of the feeding system, After sufficient consideration of the failure and the reliability factors and combining with related theory and technology, the paper proposed a belt feeding control system for the control of middle-little belt transmission. Ore transport lines using belt feed greatly increases the efficiency. Using the way of subroutine in the PLC not only facilitates the implement of manifold run-mode, but also enhances the program’s maintainability and reliability. The feeding system running in laboratory demonstrates the correctness and practicability of the system. KEY WORDS: plc, ores which supply system, configuration software 目录 TOC \o 1-2 \h \z \u HYPERLINK \l _Toc264270278 第1章 绪论 PAGEREF _Toc264270278 \h 1 HYPERLINK \l _Toc264270279 1.1课题的提出 PAGEREF _Toc264270279 \h 1 HYPERLINK \l _Toc264270280 1.2矿石供料系统技术发展前景 PAGEREF _Toc264270280 \h 2 HYPERLINK \l _Toc264270281 1.3本课题的主要研究内容 PAGEREF _Toc264270281 \h 2 HYPERLINK \l _Toc264270282 1.4课题的意义 PAGEREF _Toc264270282 \h 3 HYPERLINK \l _Toc264270283 第2章 系统总体方案设计 3 HYPERLINK \l _Toc264270284 2.1 系统分析 3 2.1.1矿石供料系统的工艺应用及特点3 2.1.2矿石供料系统的组成3