Study on Detection and Control System of Coal Flotation
YANG Xiao-ping
XU De-ping
WU Cui-ping
FENG Shao-guan
WANG Ru-shan
ZHU Dong-feng
LI Jian-zhong
LI Yong
Abstract：The automation of coal flotation has been wandering for many years in China.The production efficiency is relatively low because of the feed forward control which adds the flotation reagent based on the fine coal in feed slurry,ignoring the quantity and quality of the products.Aiming at this problem,method of measuring the flotation technical parameters was studied,the slurry level meter and the slurry ash-measuring device were worked out,and the computer control system of the coal flotation was designed.The feedback control was realized by using the fuzzy logic control control technology to regulate the reagent addition and the slurry level in the flotation tank according to the concentrate ash content detectedby the coal slurry ash-measuring device developed.The industrial experiment indicates that the performance inedxes of the coal slurry ashmeasuring device have come up to the advanced levek of the world.The application of the detection and control system in Huaibei Coal Preparation Plant results in a high concentrate recovery,a decrease of the reagent consumption,ensuring a highly efficient operation.
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 39-42 )