The rotary kiln is where the cement components are heated together to create clinker for the cement mill. Correct, consistent temperatures are essential to product quality. The steel kiln shell is protected from the extremely high process temperature usually by two layers of refractory brickwork. If this brickwork fails by erosion or physical loss of bricks great damage can be done to the shell.
Exterior measurement of the kiln shell is the most efficient way to detect hot or cold spots indicative of refractory damage and avoid costly maintenance or unplanned shutdown. Continuous monitoring along the length of the kiln, day and night, provides the earliest indication of potential refractory problems. Optional position sensors also allow the WCA server to calculate and display kiln tyre slip alongside the kiln temperature, further reducing the likelihood of refractory damage.
This predictive measurement allows for patching repairs to be made quickly before damage to the kiln occurs. The result is less downtime, more production and better asset protection.