A model-based approach to the control of incremental ash in coal flotation

被引：0
|
作者：
Pate, WT [1 ]
Herbst, JA [1 ]
Adel, GA [1 ]
Luttrell, GH [1 ]
机构：
[1] JA Herbst & Associates LLC, Kealakekua, HI 96750 USA
来源：
ADVANCES IN FLOTATION TECHNOLOGY | 1999年
关键词：
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The objective of the fines flotation step in a coal preparation plant is to maximize coal recovery subject to a constraint on the allowable ash in the concentrate. The objective is achieved when the incremental ash is driven to a target value determined by an economic constraint. In this paper, a phenomenological flotation model and ash analyzer combination are identified that allow the development of a soft sensor for incremental ash and subsequently a model-based strategy which manipulates key flotation variables to achieve the control objective. A combination of plant tests and computer simulations are presented to evaluate control-system performance in one operation.
引用
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页码：441 / 452
页数：12
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