Vertical Roller Mill (VRM) Specifications & Selection Manual
Selecting the correct Vertical Roller Mill (VRM) is a critical engineering decision that balances process requirements, capital expenditure, and long-term operating costs. A systematic approach using a specifications table and selection calculations is essential.
Selection is not merely picking from a table; it involves iterative calculations:
Define Process Requirements: Establish hard data: Material (Bond Work Index, abrasiveness, moisture), Required Product Fineness (Blaine or residue), Required Capacity (tph, annual tonnage).
Preliminary Sizing (Bond-based): Use the Bond Law and the specific energy consumption (kWh/t) curves provided by manufacturers for different materials and fineness levels. Required Mill Power
. This gives a first estimate of necessary motor size and thus mill frame size.
. This gives a first estimate of necessary motor size and thus mill frame size.
