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Application: |
Preventing slabs from piling up in a pusher furnace
using an ELDP Laser Distance Measurement Meter. |
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Description: |
A slab is pushed in on one side of a pusher furnace
which sends one slab out on the other side. Sometimes, slabs happen to
pile up inside and damage the furnace. The furnace then has to be cooled
down for repair and re-heated, meaning downtime for several days and
financial losses for the steel mill. In most of the cases water-cooled
CCD cameras are used and operating staff observes what is happening
inside the furnace on a monitor. This is tiring work, and a pile-up can
easily be overlooked. |
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Solution: |
The ELDP Laser Distance Measurement Meter measures through the opened furnace to a
reflector. The laser beam is aimed at the reflector so that it runs just
above the slabs. If the slabs pile up, the beam is interrupted, i.e. the
distance measurement deviates, and this is detected and displayed. |
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Advantages: |
•
simple installation |
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• no receiver necessary. |
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• no
elaborate cooling as installation is outside the furnace |
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•
monitoring range can be limited to the interior of the furnace by two
adjustable setpoint |
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•
high functional
reliability with self-test and reference measuring to a reflector or
natural target. |
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Industries: |
Steel
Industry as well as applicable in Aluminum Industry and other Metals
Industry. |
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