Research and application of key technologies for intelligent operation of coal slurry water circulation system in coal preparation plan

In this paper, the sedimentation law of coal slime water under large lag, large inertia and nonlinear environment have mastered by carrying out innovative research on the sedimentation characteristics of coal slime water and multi-parameter monitoring of coal slime water. The intelligent dosing system of slime water in coal preparation plant was developed, which realized the intelligent operation of the coal preparation plant’s slime water circulation system in the coal preparation plant. The test results show that the intelligent dosing system for coal slime water has a reasonable design and stable operation, and has achieved good results since the system was applied. RMB 10, 000/year; clean coal yield increased by 0.2%, overflow water concentration < lg/L; economic benefit increased by RMB 10.4 million/year.