AKW Equipment + Process Design Smart Hydrosizer (AKA-SIZER) and Smart Attrition Cells (AKA-TRIT)
8 Pages Posted: 1 Jul 2020
Date Written: June 30, 2020
For more than 50 years AKW Equipment + Process Design has been successfully active in the international mining sector as engineering provider, equipment supplier and EPC player. Focusing on the ‘separation step’ in the overall mining value chain, we offer a wide range of proprietary and state-of-the-art equipment that enable processing in the most efficient and economical way.
Some of the recent developments in the phosphate industry, which call for sharper cuts and better particle cleanliness, motivated AKW Equipment + Process Design to introduce smart solutions that have already found acceptance in several other mineral processing industries.
Taking into consideration the particular environment of a mining operation, relevant smart features that are robust enough and provide the needed controls constitute critical parts of the concepts developed by AKW Equipment + Process Design.
In smart attrition cells, the control and monitoring of a given and specific high solid concentration is compulsory in order to achieve the required scrubbing effect within a specific timeframe.
To determine this suspension concentration, the agitator shaft torque will be measured indirectly via consumed motor current and used as basis for control. Therefore with an adjustable intensity range for the torque, a dosing valve will be controlled to ensure that the working concentration is continuously adjusted in the wanted level, hence delivering a steady and optimum scrubbing performances.
In smart hydrosizers, a continuous control and adjustment of the teeter bed is compulsory in order to ensure a constant and uninterrupted classification effect.
By the mean of an automatic hydrostatic measurement, the specific conditions of the teeter bed are determined, and thereafter are kept stable through a unique control system of the discharge valves. This allows a steady cut size and prevent interruptions that might be caused by discontinuous batch discharge and sudden variation of the hydrosizer feed conditions.
Keywords: Attrition Cells AKA-TRIT ; Hydrosizers AKA-SIZER ; Phosphate Beneficiation ; SMART Concepts
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