Temperature measuring system without damage to ladle structure

A temperature measuring system without damage to a ladle structure, comprising a ladle and temperature measuring members, the ladle comprising a steel shell, a refractory layer arranged on an inner side of the steel shell and a permanent layer arranged between the steel shell and the refractory layer, an outer surface of the steel shell defining exhaust holes which extend to an outer surface of the permanent layer, wherein a cross-section of the temperature measuring members is less than that of the exhaust holes such that the temperature measuring members are capable of extending into the exhaust holes for temperature measurement;

• outer sides of the temperature measuring members are provided with protruding portions which abut against walls of the exhaust holes to thereby fix the temperature measuring members in the exhaust holes, and gaps are formed between non-protruding portions on the outer sides of the temperature measuring members and the walls of the exhaust holes for discharging gas.