Thermocouple protective sleeve in rotary cement kiln system

The utility model provides a thermocouple protection sleeve in a rotary cement kiln system, and mainly relates to the field of temperature detection tools. Disclosed is a thermocouple protective sleeve in a rotary cement kiln system. The device comprises a mounting table and a protective sleeve which are arranged on the outer wall of a pipeline, a mounting hole for communicating the pipeline withthe outside is formed in the middle of the mounting table, the protective sleeve comprises a mounting part and a sleeve, the mounting part is detachably and fixedly connected with the mounting table,the sleeve is matched with the mounting hole, and a thermocouple is detachably connected into the sleeve. The beneficial effects of the utility model are that the thermocouple is enabled not to be indirect contact with flying sand materials in a pipeline in the pipeline, thereby reducing the damage probability of the thermocouple, greatly prolonging the service life of the thermocouple, and reducing the cost of spare parts