Industry memory
A chronological record of incidents, field studies, improvements, and compliance milestones. Individuals are omitted; systems and decisions remain visible.
Source-backed chronology
Historical event facts remain part of the record. Old legal limits or procedures do not become current guidance. Records without a stated event date appear after dated accounts.
Plant and supplier report earlier detection, less damage exposure, plannable repairs, and a long-term support contract; no quantified availability delta.
Ceskomoravsky Cement · Radotin cement plant, Czech RepublicThe supplier describes an early large-clinker event passing through the replacement successfully.
CalPortland · Oro Grande, California, USAThe operator reports successful operation with the trial fuel mix.
Hanson / Heidelberg Materials · Ribblesdale, Lancashire, United KingdomThe supplier reports more than 1 t/hour additional coal displacement from optimized SRF feeders and the Feedflex upgrade, beyond the pyrolyzer alone.
Mannok Cement · Mannok cement works, IrelandSupplier reports 350 t/h at 13.36 kWh/t, more than 8 kWh/t lower, nearly 40% energy saving, and about EUR1.5 million lower annual energy cost.
Siam City Cement Public Company · Factory 1, Saraburi, ThailandAbout 4.6% cumulative kiln fuel saving, 15% lower mean NOx, 32% lower NOx standard deviation, about 10% mean cooler electricity saving, and service factor above 94% after more than two years.
Industrial cement producer · Site confidential, ItalyEPA estimated about 4500 t/y NOx and nearly 1000 t/y SO2 reductions.
Lehigh Cement and Lehigh White Cement · 14 kilns at 11 facilities, USAThe company reports 24.15% power savings for the replaced blower in 2019.
Huixian Shanshui Cement · Huixian, Henan, ChinaAfter ten months, the supplier reports stable dosing over a 1:50 range and 25% lower conveying-air volume.
Schwenk Zement · Mergelstetten, GermanyFalling material struck the technician inside the duct.
Argos USA LLC · Roberta Cement Plant, Alabama, USAEPA described more than 4000 tons of NOx reduction as settlement impact.
CEMEX Inc. · Knoxville; Demopolis; Louisville; New Braunfels; Odessa, USAThe producer documents a completed assessment and recommendations recognized by an award.
Cementa / HeidelbergCement · Degerhamn limestone quarry, SwedenCompany submission reports total electricity intensity 71.7→65.7 kWh/t cement; grinding 30.6→27.5; thermal intensity 703→682 kcal/kg clinker.
JK Cement · Mangrol, IndiaA plant manager reports cement-mill electricity consumption lower by 1.15 kWh/t.
Votorantim Cimentos · Rio Branco do Sul, BrazilEPA announced a $600,000 penalty and described permit action.
Ash Grove Cement · Seattle, Washington, USAThe source documents a maintenance-program implementation across Croatian operations.
CEMEX · Croatian cement operations, CroatiaA named implementation is documented; the page does not provide a defensible numerical savings result.
CRH · Ożarów, PolandMartin Engineering reports about 100 short tons/hour and no manual-cleanout shutdowns after the first year of operation. The end date of that observation is not stated.
Drake Cement · Paulden, Arizona, USA