What aspects should be considered when selecting thermocouples for cement plants?

Wear resistant thermocouples in cement plants are designed to measure the temperature of the cone bodies in the third, fourth, and fifth stages of the dry rotary kiln production line, as well as the temperature in the middle of the decomposition furnace, kiln tail smoke, and kiln head cover. Due to the material of the protective tube, ordinary wear-resistant thermocouples cannot meet the special temperature measurement conditions of wear-resistant thermocouples and erosion resistance, resulting in a short lifespan, high cost, frequent replacement, insufficient signal transmission guarantee, instrument processing alert status, and increased workload for instrument maintenance.

Special wear-resistant thermocouples for cement plants have undergone extensive research and verification on high-temperature and erosion resistant thermocouple sleeve materials. Combining with the characteristics of foreign cement plant production processes, after multiple tests and surface usage over time, recrystallization thermocouples have the advantages of long service life, good shock resistance, high thermal conductivity, oxidation resistance, thermal shock resistance, high temperature resistance, corrosion resistance, erosion resistance, no tumor formation, no slag formation, and easy installation and use. They can be used in special temperature measurement occasions of 600-1200 ℃, and cannot be replaced by thermocouple protection tubes made of materials such as corundum, high aluminum, graphite, and oxide silicon carbide in China.

The selection is divided into: special grade wear-resistant head, wear-resistant head, and second grade wear-resistant head

Special grade wear-resistant heads are often used at the furnace head and tail of cement plants, which are the severely worn parts in cement plants. The usual service life is about one month, and the price is relatively high

The wear-resistant head can be used in the furnace head and tail for about 20 days, and can be used in the furnace for about 30 days

The secondary wear-resistant head is also a regular wear-resistant head, with low cost, and can be used in the furnace for about a week

characteristic:
High and long service life.
Antioxidant and corrosion-resistant.
Resistant to thermal shock and high temperature.
No lumps, no slag.
4-8 mm pipe wall thickness.
Quick response function and strong stability.
Can be used without preheating.
Multiple installation methods suitable for various users.
Optional on-site display.
The anti-interference ability during long-distance transmission.
Wide temperature range for use, stable and reliable operation.