煤泥水车间设备网络化变更控制系统的设计与实现  

Design and application of the coal slime water treatment equipment networked change control system

作　　者：赵晓红 朱帅 杨陈 彭晨[2] ZHAO Xiaohong;ZHU Shuai;YANG Chen;PENG Chen(Tunlan Coal Preparation Plant, Xishan Coal & Electricity (Group) Co. Ltd., Taiyuan 030206, China;School of Mechanistic Engineering and Automation, Shanghai University, Shanghai 200444, China)

机构地区：[1]西山煤电(集团)有限公司屯兰选煤厂,山西太原030206 [2]上海大学机电工程与自动化学院,上海200444

出　　处：《选煤技术》2021年第4期91-96,97,共7页Coal Preparation Technology

基　　金：国家重点研发计划资助项目(2020YFB1708200)。

摘　　要：针对当前多数选煤厂生产流程供应链中煤泥水车间设备控制存在的权利分散、方式单一、实时性和协同性差等问题,根据选煤厂煤泥水车间设备分布的实际情况,提出了一种“分散式集中”的变更控制架构方式,设计了一种以西门子S7-1500可编程控制器为核心的车间设备网络化变更控制系统。该系统以分布式IO模块ET200SP作为集中局域网的核心控制器,由主站控制器S7-1500负责数据的读取和控制指令的下发;重新设计了车间设备的控制方式,在原有本地控制方式的基础上,增添了远程控制方式和检修控制方式,以满足设备在不同场景下的变更控制需求;此外,还设计了一种基于位移量的电动阀门开度控制系统,实现了车间电动闸板阀门开度的精确、实时变更控制。西山煤电(集团)有限公司屯兰选煤厂的应用实践表明,该系统可以实现选煤厂煤泥水车间设备的网络化变更控制,提高了设备控制的实时性以及设备之间的协同性,为选煤厂工艺流程的优化奠定了基础。Nowadays,the problem confronting most of the plants is that the control of the equipment of the slime water treatment workshop in the process flow supply chain is decentralized capabilities,and the use of a single control mode with a low real-time and coordination performance.To tackle the problem,a networked change control system with the Siemens S7-1500 programmable controller as the core is specifically developed.In line with the specific equipment arrangement conditions of the shop,a generally decentralized and regionally centralized change control topology is proposed.In the centralized local area,distributed IO module ET200SP is used as the core controller with the master controller S7-1500 for reading data and issuing control instructions.The redesigned equipment control mode makes it possible to perform remote control and maintenance control functions on the basis of the original local control mode,so as to meet the requirement for control of equipment operating in different scenarios.Additionally,a displacement-based electric valve opening control mechanism is developed for the equipment control system for realizing real-time and precise control of the electric valves in the shop.As evidenced by field application of the equipment control system at Tunlan Coal Preparation Plant,all the coal slime water treatment equipment are made possible to operate under centralized networked control with a much improved real-time and coordination performance.The development of the control system provides a sound basis for the optimization of coal cleaning process of coal preparation plants.

关 键 词：设备控制 设备网络化变更控制系统 控制架构 控制方式 阀门开度控制 

分 类 号：TD948.9[矿业工程—选矿] TD946.2