Application of Thermometer in Ironworks

Application of HDIR infrared thermometer in ironworks Measurement of the temperature of the dome of the hot blast stove The dome of the blast stove is a special occasion. The measurement of the dome temperature must not only solve the high temperature and high pressure problems of the measured target, but also adapt to the The requirements of open-air environment change during the four seasons. After repeated practice, we designed a special protective device with a sealing window. The method of use is to fix the infrared detector equipped with the protection device to the position of the originally inserted thermocouple on the vault so that the probe can pass through the sealing window and the thermocouple jack, aiming at the interior of the hot stove, and measuring the vault dome At the temperature, the probe signal is sent to the instrument box installed on the control cabinet through the cable to display the temperature value, and the 4-20mA standard current signal is output and sent to the recorder or computer for processing. Because the infrared detector of this system does not touch the high temperature target, it has the characteristics of stability, reliability and long service life. It can usually run for more than five years continuously, it can reduce the consumption of thermocouples, and greatly reduce the equipment operation cost and maintenance workload.

Measurement of the internal temperature of the hot air pipe The temperature measuring device of this system is basically similar to the vault temperature measuring system. The infrared detector equipped with a protective device is installed on the original thermocouple plug of the hot air pipe, and the infrared probe is sealed through the protective device. The window, and then through the jack of the original electric couple, aim at the inside of the hot air duct to measure the temperature inside the hot air duct. Because the temperature measuring probe of this system is installed outside the sealing window, the entire temperature measuring system is completely isolated from the hot air inside the tube. Therefore, the system can be exchanged without affecting the working state of the hot air in the tube. The original commonly used thermocouples must be exchanged in the off-wind state, plus the thermocouple is a consumable product, and the damage is more frequent. The temperature measurement system can reduce the consumption of thermocouples and reduce the operating costs of the equipment. At present, the system has been used by Benxi Steel, Chenggang, Laiwu Steel and other units, and has achieved good economic benefits.

Measurement of the temperature of the molten iron in front of the furnace The method of measuring the molten iron in front of the furnace by the HDIR series infrared thermometer is as follows: The infrared temperature probe equipped with a blow-drying sleeve is fixedly installed on a bracket 5-15 meters away from the molten iron and is aimed at the hot metal ditch. Furnace hot metal continuous scan measurement, the temperature signal measured by the probe is connected to the recorder print temperature curve or sent to the computer for data processing. The biggest advantage of this system is that it can automatically and continuously measure the temperature of molten iron in each furnace, which can effectively avoid the influence of artificial factors caused by manual temperature measurement. By analyzing the recorded temperature curve or other computer processing information, the change trend of the temperature of molten iron per furnace can be truly reflected, and the maximum temperature of each furnace can be read out intuitively, which provides a strong basis for production management and process improvement. At present, the system has been used by Egang, Shougang, and other units, and has won praise from users.