TAO Yadong;PAN Yuejun;

• 1:CHN Energy Shendong Coal Preparation Center

Abstract：

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%.

Key Words： slime water;intelligent control;feedback regulation;coal preparation plant;drug feeding system

Abstract:

Keywords:

Foundation: 国家能源集团科研项目(201692548908);; 神东煤炭集团科研项目(201791548008)

Authors: TAO Yadong;PAN Yuejun;

DOI: 10.13226/j.issn.1006-6772.19073003

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