煤矿井下升降机安全操控系统的设计(PLC)(任务书,开题报告,外文翻译,进度计划表,论文说明书14000字)
摘 要
煤矿井下升降机作为最重要的矿井运输装置。
(3)进一步完善升降机后备保护功能,事故的发生较为频繁。
关键词：矿井升降机; PLC; 电控系统; 仿真
Abstract
Mine hoister is one of the main equipment in mine. It conveys not only mineral but also miners. So the performance of mine hoister is concerned with hundreds of miners’ lives. At present, the mine hoisting equipment in China are mainly rest on the TDK electric control which is used in 1960s and 1970s. Although interrelated renovations has been done in recent years, essentially it is still the contact control system which is made up of the contactor-relay. The hardware wring system of the contact control system is complex and has high hazard rate. During the renovation of this mine hoister system, the PLC is applied to the control system, and plentiful soft components of the PLC are applied to replace the contactor and PLC control system has improved original electric control system. At the same time, Programmable logic controller (PLC) with the inverter applied to the production of the mine is to design the existing hoist control system. It will improve the accuracy and ensure the smooth progress of the mine production. As to the key elements of the lift, it makes senses to set speed alarm, overload protection, which is to enhance the security situation. In addition, it is also using a simplified mathematical model to establish vector control simulation system, which is to verify the feasibility of the speed control system.
Key words: Mine Hoister; PLC; Electric Control System; Transducer Simulation
在煤矿生产中,从而完成煤矿升降机的启动、加速运行、等速运行、减速、低爬和停车的操控,从而完成了利用 PLC对原有系统的改造；同时将PLC和变频器结合起来,从而保证了升降机的安全运行。此外,使升降机安全状况有所改善;
我国对于矿井升降机操控系统的改造,但从根本上来说仍是由接触器—继电器等组成的操控系统,但从全国的角度出发,从而来验证设计的调速系统。针对升降机的主要环节设置过载、松绳、过卷等安全保护措施,使升降机的安全状况有所改善。
目 录
摘 要 II
ABSTRACT III
1 绪论 1
1.1 课题研究背景、意义及内容 1
1.1.1 研究背景 1
1.1.2 研究意义 1
1.1.3 研究内容 1
1.2 国内外煤矿升降机电气操控系统的发展现状 2
1.2.1 我国煤矿井下升降机电气操控系统的现状 2
1.2.2 国外煤矿井下升降机电气操控系统的现状 2
2 煤矿井下升降机操控系统的设计方案 4
2.1 矿井升降机概况 4
2.1.1 矿井提升系统概述 4
2.1.2 矿井升降机主要组成部分及其工作原理 4
2.2 升降机电控系统的功能要求 5
2.2.1 升降机的工作过程 5
2.2.2 煤矿升降机的操控要求 7
2.3 煤矿井下升降机电气操控系统组成 8
2.4 矿井提升机调速操控方法选择 9
2.4.1 变频调速的操控 9
2.4.2 变频调速的频率操控方法——矢量操控 10
2.5 变频调速操控系统组成 10
2.6 小结 11
3 升降机操控系统的硬件和软件设计 12
3.1 系统硬件选型 12
3.1.1 提升电动机选择 12
3.1.1 变频器的选型 12
3.1.2 PLC的选型 13
3.2 矿井升降机主接线图 13
3.2.1 升降机的主要电气装置 15
3.3 I/O地址分配表 15
3.4 PLC的I/O地址接线图 16
3.5 软件系统设计 17
3.5.1 升降机调速设计 17
3.5.2 升降机运行中过卷保护设计 21
3.5.3 升降机运行中限位设计 22
3.5.4 升降机安全报警系统的 24
3.6 小结: 26
4 升降机变频调速操控系统的仿真 27
4.1 变频调速操控系统的结构 27
4.2 仿真子模块功能 28
4.3 仿真参数设置和结果分析 28
5 总结与展望 30
5.1 研究总结 30
5.2 展望 30
致 谢 31
参考文献 32