How to Measure the Rotary Kiln Temperature ?

The rotary kiln is the main equipment for calcining cement clinker. Rotary kiln has the advantages of simple structure, convenient and reliable production, less wearing parts, and high operating rate. We all know that temperature is the key part to rotary kiln, but do you know how to measure it?

Rotary kiln slip ring thermocouple temperature measurement system uses thermocouple to measure the temperature of rotary kiln internal materials and the air. The two ends of the thermocouple are respectively connected in the two slip rings; each slip ring is respectively coupled with a carbon brush, brushless is fixed to a connecting rod, via a wire connecting to the DCS. Its principle is similar to that of tram power system, often called rotary kiln slip ring temperature measurement system. A slip ring can only pick one of the hot end of the thermocouple (positive), several thermocouple cold end (negative) share a slip ring. If we want to measure the temperature within the rotary kiln, but also measure the external temperature of the cylinder and the barrel temperature and can depict a precision higher cylinder temperature simulation diagram, you need more than 100 and even more slip rings. However, in most of the existing situation, rotary kiln is generally only three slip rings, only used to measure the preheating zone, fired zone and insulation zone temperature

As the external temperature and the internal temperature of the rotary kiln are closely associated, so we can indirectly measure the internal temperature by measuring the external temperature. Use infrared scanner to receive infrared light emitted by kiln skin, so that get skin temperature. The measurement method mainly uses infrared scanning to measure external temperature of rotary kiln. This indirect measuring method has larger hysteresis. The advantages include easy installation and compact structure. With the development of science and technology, such a measuring method is generally not used as a...