Heat Shield

The IKN Heat Shield is located at the end of the recuperation zone in order to maximize the flow of hot air from the cooler to the kiln. The shaft of the shield is air cooled. In case a major chunk of clinker has to pass the shield it will automatically pivot upwards. The main benefits of the IKN heat shield are:

• constant kiln hood pressure for stable flame and kiln operation
• perfect split of preheated air and vent air
• higher heat recuperation due to reduction in radiation losses Experience

IKN has successfully supplied Heat Shields for more than 60 coolers all over the world. For example Heracles General Cement SA in Greece has retrofitted five conventional clinker coolers with IKN Heat Shields. Apart from heat savings, the objective was to stabilize the kiln and precalciner operation while burning 100 % pet coke.

In the case, a chunk of clinker pushes against the IKN Heat Shield, the Heat Shield will automatically pivot upwards to allow a smooth passage. Heracles General Cement SA in Greece has retrofitted five conventional clinker coolers with IKN Heat Shields. Apart from heat savings, the objective was to stabilize the kiln and precalciner operation while burning 100 % pet coke.