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North America 2018
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World Cement
jobs, leading to millions of dollars in annual economic
activity. The facility has 244 employees and produces
Type I-II Low Alkali and Type IL (10% limestone
addition) cement for markets throughout the
Mississippi River basin. In addition to benefiting from
low-cost, energy-efficient barge transportation, the
facility is also well-positioned to take advantage of rail
and truck transportation.
Since startup, the plant has achieved several notable
milestones, including the production of a record
4.1 million t of cement in 2017. It has also earned the
US Environmental Protection Agency’s prestigious
ENERGY STAR
®
designation for superior energy
performance, operating well below emissions
limits. With the addition of the new state-of-the-
art clinker cooler system, it has achieved a cost-
leadership position within the company’s worldwide
manufacturing network.
Plant overview
Certified to ISO 9000 and 14 000 standards, the
Ste. Genevieve complex is one of the industry’s most
technologically advanced cement manufacturing plants.
Plant operations include the largest single-kiln line
in the Americas, sophisticated emission controls, fully
automated quality-control laboratories, a harbour and
fleeting facility, and some of the largest silos ever built.
Raw mill
The plant uses two vertical roller mills (VRMs) to
grind and dry all the raw materials, which reduces
energy consumption by more than 30% compared
to ball-milling processes. Each mill is equipped
with 3900 kW gear reducers and is capable of
grinding approximately 515 tph of raw material to a
product fineness of 15% retained on a 90
μ
m sieve.
Raw-material mix is fed to separate bins and discharged
to each mill by a weighfeeder. Each mill is arranged in a
three-fan system that passes the required gas through
the mill circuit and main filter. With the mill and
control arrangement, the plant can and has achieved a
kiln-feed uniformity of 1.0.
The Ste. Genevieve cement plant is the largest cement-producing facility in North America and among the most
environmentally efficient and safest.
The plant’s kiln has a production capacity of
approximately 12 000 tpd of clinker, making it the
largest single-kiln line in the Americas.
The plant’s fully-robotic laboratory ensures the
production of high-quality cement products for
construction projects throughout US Midwest.