洁净煤技术

2019, (05) 151-155

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选煤厂煤泥水加药智能化控制系统研究
Study on the intelligent control system of slime water dosing in coal preparation plant

陶亚东;潘月军;
TAO Yadong,PAN Yuejun

摘要(Abstract):

为进一步提升选煤厂煤泥水处理智能化管理水平,神东洗选中心将在线传感器和喷灌式加药设备智能化控制系统相融合,结合选煤厂煤泥水工艺流程特征,以煤泥水絮凝沉降试验为依据,将浓缩机入料浓度作为加药量相关条件因素,沉积界面厚度参数作为反馈信息,控制箱程序计算分析,调整电动阀门调节控制发出加药量信息,实现煤泥水加药系统智能化控制。通过多点喷灌加药方式,使药剂与煤泥水充分混合,通过煤泥水的沉降状态判断煤泥水在浓缩池中的各层沉降状态,分析智能加药系统智能化调节与现场煤泥沉降状况的匹配度,人工对内置专家系统进行修订,保证智能加药系统不断优化升级。通过一系列智能化手段,解决煤泥水工艺流程数字化管理不足的问题,建成了现代化选煤厂煤泥水加药智能化控制系统的总体构架、在线监测仪器、加药控制策略、控制装置。以上成果在神东洗选中心上湾选煤厂投入使用,根据现场实践,每提高100 t煤泥水处理量可将入选量提高100 t,同比可增加230 t原煤处理量,提高生产效率10%。
In order to further enhance the intelligent management level of slime water treatment in coal preparation plant,Shendong washing center integrated the online sensor with intelligent control system of sprinkler type dosing equipment . Combining with the feature of slime water of coal preparation plant technological process,based on slurry flocculation sedimentation test,the feeding concentration of concentrator was regarded as the relevant condition factor of dosage,and the sedimentary thickness parameter was regarded as feedback information interface,the control box program calculation analysis was carried out,and the dosage information was sent out by adjusting the adjusting control of electric valve,so as to realize the intelligent control of coal slime water dosing system. Through multipoint sprinkler irrigation dosing,the reagent was mixed with the slime water. Through the settlement of slime water state,the state of slime water layers in the concentrated tank settlement was judged. The matching degree of intelligent dosing system intelligent control and the slime settlement was analyzed. The built-in expert system was revised manually to ensure the continuous optimization and upgrading of the intelligent dosing system. Through a series of intelligent means to solve the problem of lack of slime water process digital management,the overall framework,on-line monitoring instrument,dosing control strategy,control devices of the intelligent control system of slime water dosing in modern coal preparation plant were built. The intelligent control system of slime water and charge has been applied to Shangwan coal preparation plant of Shendong Coal Preparation Center. With the increase of 100 t slurry water treatment capacity,the feed capacity can be increased by 100 t,the 230 t raw coal treatment capacity can be increased year-on-year,and the production efficiency can be increased by 10%.

关键词(KeyWords): 煤泥水;智能化控制;反馈调节;选煤厂;加药系统
slime water; intelligent control; feedback regulation; coal preparation plant; drug feeding system

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作者(Author): 陶亚东;潘月军;
TAO Yadong,PAN Yuejun

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