OPTIMIZATION OF COMMINUTION CIRCUIT THROUGHOUT AND PRODUCT SIZE DISTRIBUTION BY SIMULATION AND CONTROL

Walqui, H.J. ; Eisele, T.C. ; Kawatra, S.K.

Michigan Technological University

关键词: Particle Size;    Process Control;    Crushing;    Comminution;    Mathematical Models;   

DOI  :  10.2172/822029
RP-ID  :  NONE
RP-ID  :  FC26-01NT41062
RP-ID  :  822029

美国|英语

来源: UNT Digital Library

【 摘 要 】

The goal of this project is to improve energy efficiency of industrial crushing and grinding operations (comminution). Mathematical models of the comminution process are being used to study methods for optimizing the product size distribution, so that the amount of excessively fine material produced can be minimized. The goal is to save energy by reducing the amount of material that is ground below the target size, while simultaneously reducing the quantity of materials wasted as ''slimes'' that are too fine to be useful. This will be accomplished by: (1) modeling alternative circuit arrangements to determine methods for minimizing overgrinding, and (2) determining whether new technologies, such as high-pressure roll crushing, can be used to alter particle breakage behavior to minimize fines production.