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> ALRESIST® Linings
KALDETECT Wear Detection Monitor System
Electrical, Pneumatic or Mechanical Systems
to Monitor Abrasion / Wear from Abresist
 Even superior wear resistant linings do not have
unlimited lifetimes, especially in cases of extremely abrasive
materials and harsh operating conditions. This can become
critical, e.g. when for environmental protection reasons,
certain harmful materials cannot be allowed to pollute the
enviroment.
For example: pneumatic
conveying lines within waste incineration plants that are
designed for the incineration of hazardous waste. The leakage
in a conveying line as a result of unexpected abrasion would
cause dangerous or environmentally harmful substances to be
released.
For these and other cases, systems are offered
that monitor possible wear in the lining before material leaks
into the atmosphere or soil.
 Electrical
Wear Detection - The wear resistant lining is fitted
on the outside with a low voltage electrical circuit. If the
wear resistant lining wears through due to abrasion, the electrical
circuit will be interrupted. Options in the electrical circuit
design will allow the system to initiate an alarm with an
indication of the relevant lined section or shut down the
plant automatically. The electrical wear detection is available
for all of the wear resistant materials and also for combined
linings of any plant components.
Pneumatic Wear Detection - The steel
casing is twin-walled. With changes of the pressure level
in the space between the two walls caused by a leak, an indicator
or alarm will be activated or the plant will be shut down.
This system can be used for single components or complete
systems.
Mechanical Wear Detection - A serrated
wear-measuring tape is placed in a continuous groove of the
abrasion resistant lining. The width of the visible saw tooth
is an indication of the condition of the protective lining.
Additionally, the wear resistant lining can be fitted with
a borehole. The length of an indicator pin installed in the
hole monitors the thickness or condition of the protective
lining when removed and inspected.
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