Automatic Flotation Control using On-Stream Ash Analysis

An on-stream coal slurry analyser for both ash and % solids has been developed cooperatively by the Julius Kruttschnitt Mineral Research Centre and the Utah Development Company Limited. An industrial prototype of this unit has been operating successfully at the Peak Downs coal preparation plant sinc...

Full description

Saved in:
Bibliographic Details
Published in:Coal preparation (New York, N.Y.) N.Y.), 1993-01, Vol.12 (1-4), p.41-64
Main Authors: CLARKSON, C. J., HORNSBY, D. T., WALKER, D. J.
Format: Article
Language:English
Subjects:
Applied sciences
ash
ASHSCAN coal slurry analyser
Coal and derived products
combustibles
concentrate
Energy
Exact sciences and technology
Fuels
Mechanical preparation
Processing
solids
tailings streams
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An on-stream coal slurry analyser for both ash and % solids has been developed cooperatively by the Julius Kruttschnitt Mineral Research Centre and the Utah Development Company Limited. An industrial prototype of this unit has been operating successfully at the Peak Downs coal preparation plant since April, 1984 and has been used for automatic control of a bank of coarse flotation cells since January, 1985. This paper will include a brief description of the ASHSCAN coal slurry analyser together with details of its accuracy. An analysis of the limitations of present manual control will precede a discussion of computer control of flotation utilising the ASHSCAN signals to control cell level and reagent addition. The aim of the control is to use the ash and % solids assays from the feed, concentrate and tailings streams to maintain the concentrate ash at a specified ash while maximising recovery.
ISSN:0734-9343
1545-5831
DOI:10.1080/07349349308905108