4 Common Causes of Damage to Incinerator Refractory

The incinerator refractory is an essential piece of marine equipment that is used frequently on vessels. Yet, its maintenance is often overlooked – especially that of the refractory lining in the incinerator.  

There are various factors – such as time, temperature and operations – that affect the lifespan of the incinerator refractory. The following four factors have been found to shorten the lifespan of the refractory material:

  1. Overheating or excessive temperature. This causes the refractory to shrink.
  1. Spalling, thermal shock due to temperature fluctuations, as well as mechanical shock or compressive forces. These cause the refractory to crack excessively.
  1. Lack of regular cleaning after each operation of the incinerator. This causes corrosion of the refractory. 
  1. Failure of the steel shell which supports the refractory. This causes mechanical damage to the refractory.
A damaged or cracked refractory transfers heat to the outer casing, damaging the coat of paint which may result in the equipment catching fire.

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