Clinker cooler
Optimal cooling of the clinker
In the production of cement, the raw meal is burned into clinker in long rotary furnaces. The clinker has a temperature of over 1300 °C (2372 °F) after leaving the rotary furnace and must be cooled down to a temperature of about 200 °C (392 °F) for intermediate storage. To accomplish this the clinker bed is cooled with a continuous stream of air.
To make the cooling as efective as possible, it is necessary to determine the thickness of the clinker layer in the cooler. The high product temperatures make this a difcult measuring task.
VEGAPULS 68 in extremely high temperatures
Since microwaves of the radar sensor propagate independently of the process temperature, monitoring of the clinker bed is possible even at extreme temperatures. The radar sensor VEGAPULS 68 is continuously rinsed with cooling air via an air connection on the antenna system and on the mounting boss and can thus withstand process temperatures of over 1000 °C (1832 °F). Antenna systems made of heat-resistant stainless steel ensure maintenance-free sensor operation.
Monitoring the cooling air with VEGABAR 52
The VEGABAR 52 pressure transmitter is ideal for monitoring the air pressure in the clinker cooler. The robust ceramic measuring cell boasts high long-term stability and ofers high functionality thanks to the plics® concept.
