跳汰机选煤生产过程智能控制

Intelligent Control for Jigging Process

基于跳汰选煤的基理建立了以精煤灰分、精煤回收率为控制目标的跳汰机仿人智能控制系统 .智能控制系统由二层构成 .智能控制系统上层以跳汰机实时分选效率、入洗原煤性质和可选性为依据 ,应用专家系统技术 ,实时识别系统状态和趋势 ,实现智能控制系统底层各子控制系统间协调与优化控制 .智能控制系统的底层由一多环模糊控制器构成 ,解决跳汰机多变量控制 .多环模糊控制器分别实现跳汰机系统的给料、排矸石、排中煤、筛下顶水和总用风量模糊控制 .实际应用表明 ,此种跳汰机智能控制系统可以较好地解决跳汰选煤生产过程实际控制问题 。

Based upon the principle of jigging process, the human like intelligent control system was built aiming at obtaining a high jig efficiency. The intelligent control system was built in two layers. In the top layer, based on the online evaluating preparing efficiency, the quality and the preparation of raw coal, the intelligent control system can coordinate each sub control system of the low layer and realize optimal control. In the low layer, a multi loop fuzzy controllers were built to control the jigging process which is a multi variable system. The multi loop fuzzy controllers can satisfactorily control feeder, reject discharge, middle discharge, down screen water, and wind system. The application in a coal preparing plant shows that the intelligent control system described in this paper is feasible. The good economic benefit has been gained.