Ball mills0 pages

STEAM PRODUCT SOLUTIONS

Industrial Mills
Ball Mills

With more than
100 years experience,
Alstom is a leader in
the design, innovation,
manufacturing and
construction of industrial
milling equipment.

Proven and rugged design for reliable
grinding and greater productivity
Alstom’s vast portfolio includes mills for industrial applications and power
generation with thousands of references globally. We have maintained our position
as the leading supplier and innovator of coal pulverisers for utility and industrial
combustion systems as well as of pulverisers for industrial mineral applications.
Ball Mill system
Alstom Ball Mill is a slow speed horizontal mill with trunnion type bearings and
girth gear – a rugged design with ease of operation, maintenance and an excellent
performance record.
For a variety of grinding applications
Alstom Ball Mills are suitable for varied grinding solutions ranging from grinding of
limestone to grinding of quartz and are suited for various industrial applications.

Customer benefits
Extensive experience and proven
performance of a wide range of
capacity and sizes for various
applications:
Capacity
Coal – up to 30 Mt

•t
•tLimestone – up to 250 Mt
•tCement – up to 150 Mt
•tIron ore – up to 160 Mt
Size
Diameter from 2.6 m to 4.6 m
and length from 5 m to 14.5 m

TPWR/PRSHT/IMBM/EN/2.2014/CHE/1981

•t
•tMax. drive size: 5,000 kW

Custom-engineered systems
Each Ball Mill system is designed and custom-engineered to achieve the best solution
for the processing application, characterised by excellent wear life and high availability.

DESIGN and CONSTRUCTION FEATURES
Mill shell
The shell is made of carbon steel plates,
with two steel flanges welded to
the ends. The entire shell is machined
in a single setting in order to ensure
parallelism and concentricity. Seams
are double butt welded.

required high-pressure and lowpressure pumps, motors, suction
strainers, filters and the necessary tray
to make a complete packaged unit. The
low-pressure pumps serve for forced
lubrication while the high-pressure
pumps are used for pre-jacking.

Forced lubrication and pre-jacking units
An independent lubricating pump
assembly is provided for each trunnion
bearing. Each assembly consists of

The pre-jacking units are arranged to lift
the trunnions prior to the mill start up
and lubricate the bearings after mill shut
down.

Materials Processed
Bituminous coal, anthracite coal,
petcoke

•t
•tLimestone, clinker, flyash, blast
furnace slag
•tLime and coke, iron ore, bauxite,
copper ore, quartz and other
minerals

© ALSTOM 2014. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be
relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is
provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority,
is strictly prohibited. Photo credits: © ALSTOM 2014. All rights reserved. Printed on environmentally friendly paper.