Showing posts with label wear protection service. Show all posts
Showing posts with label wear protection service. Show all posts

UHPC Hot gas slide system in a cement plant

A customer from the cement industry had permanent problems with a hot gas gate valve. The gate valve was made of a stainless steel construction with a refractory heat protection lining. The average gas temperature is in the pipesystem is 800°/1472°F - 1000°C/1832°F.

The problems in detail were
  • Significant wear due to high dust loading in the gas flow
  • Heat exchange problems arose as a result of temperature changes and the result was breakdowns in the refractory lining and problems with the movement of the slide.

We engineer a slider made complete of UHPC HT (High Temperature) with the following characteristics
  • High thermal shock resistance
  • Thermal stability up to 1100°C/2012°F
  • Very high wear resistance
  • High impact resistance
  • There was no metallic reinforcement used, so there was no metallic thermal expansion
  • Due to the very high strength values ​​of the UHPC used, the board thickness could be reduced by more than 60% compared to the old refractory construction.
  • This resulted in a weight reduction of almost 50%, which also reduce power consumption.
  • a drastic reduction of the idle time and better movability of the gate valve resulted in a 16% better production.

Here are a short video to show the impact resistance of the gate plate



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