Waste incineration

Ash disposal via the deslagger

At the end of the grate, the burned out, hot combustion residue is discharged into the water bath of the deslagger. Complete quenching takes place here. The slag is then removed from the deslagger via a mechanical discharge system, which also squeezes out most of the excess water. A certain amount of water in the deslagger is lost through evaporation and the mechanical discharging process. The loss depends on the temperature of the residue and its water absorption capacity. This being the case, the level in the deslagger must be constantly replenished through reliable measurement.

Level measurement with VEGABAR 66 or VEGAPULS 67

A continuous level measurement via a suspension pressure transmitter VEGABAR 66 controls the automatic discharge of the water/slag mixture. The ceramic measuring cell of this pressure transmitter is highly resistant to the abrasive slag. It is also front-flush, which generally protects it from buildup.

Extreme soiling and buildup can occur, however. In such cases, the level measurement is made with a non-contact radar sensor, VEGAPULS 67. Its efficient measuring system is also not affected by surface foam.