Plant Mass Balance & Cost Model
Quarry \u2192 raw mill \u2192 kiln \u2192 cement mill, reconciled to one balanced truth instead of booked figures \u2014 then cascaded into electrical specific power and a real cost per tonne. This is a standalone Excel product, separate from the free calculators below: one connected model of the whole plant, not one formula.
How the 13 tabs connect
- Cement Silo Balance \u2014 measured stock + sales \u2212 initial stock = the truth, independent of what was booked.
- Mill Delta Allocation \u2014 splits that truth across the mills that ran each product, in proportion to booked tonnage.
- Cement Oxide Matrix \u2014 reverse-engineers the actual mill recipe from lab oxide analysis (least-squares).
- Cement Material Wet/Dry \u2014 dry tons from the recipe, wet tons for what quarries/subcontractors are paid on.
- Raw Mill Silo Balance & Delta Allocation \u2014 same logic, one stage upstream of the kiln.
- Raw Meal Oxide Matrix \u2014 solves the actual raw mix (limestone/clay/iron/correctives) from chemistry.
- Raw Material Wet/Dry \u2014 wet/dry conversion for raw materials.
- Clinker / Kiln Factor Check \u2014 cross-checks inferred clinker production against the independently balanced raw meal.
- Purchased & Quarry Materials Reconciliation \u2014 period stock reconciliation against balanced consumption.
- Bulk Density \u2014 actual, derived density per material \u2014 replacing a single fixed assumption.
- Power Consumption \u2014 kWh/t at raw grinding, pyroprocessing and cement grinding, on balanced (not booked) tonnage.
- Cost Breakdown \u2014 raw meal $/t \u2192 clinker $/t \u2192 cement $/t per product, cascaded from the same balanced tonnages.
- Dashboard \u2014 one-page read-out linking into every tab above.
Built to be edited, not just read
Kiln factor is the single weakest link \u2014 there's no scale under the kiln, so this is a periodically-calibrated average, not a real-time measurement. A flag on that tab is a prompt to investigate, not automatic proof of a problem.
The oxide-matrix solve assumes representative, stable material analyses. If a proportion solves negative or over 100%, or residuals are large, that day's composition should be treated as unreliable, not trusted blindly.
Get the Excel version
Every formula live and editable, dashboard-styled, ready to use on-site or in a report — $249.
Trouble paying? Contact us and we'll arrange it directly.
Want it built around your plant's real reconciliation history instead of the illustrative example data? Talk to us about a full audit.