Export Requirements for Packaging Machines - Moeller

APPLICATIoN
Cemented
SmartWire-DT Controls Conveyor Belts for Cement Clinker
Holcim (Deutschland) AG is a subsidiary of the international Holcim Ltd. building materials group. The largest supplier
of building materials in North Germany started 150 years ago as a cement manufacturer. Today the strong and
independent product sectors for cement, gravel and aggregates, as well as ready-mix concrete are the key sectors
of the group of companies. Complete building material solutions and services complete the range on offer. The
conveyor system for transporting cement clinker at the Lägerdorf production plant of Holcim (Deutschland) AG uses
SmartWire-DT, Eaton’s innovative connection and communication technology.
Clinker is a raw material from which cement is later manufactured.
The lime is first of all excavated from Holcim’s own lime quarry
and mixed with clay and sand. This mixture is then sintered in the
oven. The result is the raw material clinker: The granular cement
clinker is between three and five centimeters in diameter. In the
next process, the clinker is ground in a ball mill to produce cement
as the final end product. SmartWire-DT is used on the conveyor
line for transporting the clinker from the oven to the storage silos
and for distribution into the silos using slides.
Efficiency, transparency and reliability
Recording process states and creating a clear and transparent
monitoring of production processes are requirements that are
gaining increasing importance. These aim to ensure the early
detection of process faults or even process downtimes in order to
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SolutionS 23
make timely interventions and implement appropriate preventative
measures. For this Eaton is offering a perfect solution made
up of the PKE electronic motor-protective circuit-breaker, the
NZM circuit-breaker and the SmartWire-DT connection and
communication system.
The PKE reliably protects and monitors motor feeders up to a
rated current of 32 A. Consisting of a PKE basic unit and the
PKE trip block the modular switch can be flexibly adapted to the
current range to be monitored. The wide current setting ranges
of the trip blocks also cover a number of equivalent, conventional
bimetal overload relays which considerably simplifies the
engineering of the main circuit. The NZM circuit-breaker is used
for protecting higher rated motors and systems up to 1600 A. Like
the PKE, an NZM with an electronic release can cover several
conventional bimetal circuit-breakers thanks to its large current
setting ranges. In conjunction with SmartWire-DT both switching