Design of control system of hydraulic pump station of reclaimer rake in coal preparation plant
-
摘要: 针对目前选煤厂取料机料耙液压泵站电动机大多采用直接启动方式,液压油的温度检测采用模拟仪表实现,存在着对设备冲击大、油温检测精度不高、可靠性差等问题,提出了基于软启动器和PLC的新型液压泵站控制系统设计方案。该系统通过 PLC采集液压泵站油温及设备运行状态,根据设定的工作模式对其进行控制,并可实时在线显示液压泵站运行状态、故障诊断报警信息,具有油温超限、滤油器堵塞、电动机过流等多种保护功能。Abstract: Most oil pump motors of hydraulic pump station of reclaimer rake in coal preparation plant uses direct starting mode to start, and adopts analog instrument to detect hydraulic oil temperature at present, which exist some problems such as big starting shock, low detection accuracy of oil temperature and poor reliability. In view of above problems, the paper proposed a design scheme of control system of hydraulic pump station based on soft starter and PLC. The system uses PLC to collect the oil temperature and equipment operation condition of hydraulic pump station, controls the hydraulic pump station according to set operation mode, and displays running status, fault diagnosis and alarm information on-line. The control system has protection functions of oil temperature overheat, oil filter plug and motor overcurrent.
-
Key words:
- coal preparation plant /
- stacker-reclaimer /
- hydraulic pump station /
- motor /
- PLC /
- soft starter
点击查看大图
计量
- 文章访问数: 38
- HTML全文浏览量: 8
- PDF下载量: 11
- 被引次数: 0