System for detecting and sensing temperature at stack and bosh of blast furnace online

The utility model discloses a system for detecting and sensing temperature at stack and bosh of a blast furnace online. The system for detecting and sensing the temperature at the stack and bosh of the blast furnace online comprises a thermal radiation propagation medium arranged in a furnace wall of the blast furnace, a photovoltaic conversion module, a wireless transmitting module, a wireless receiving module and an upper computer, wherein the thermal radiation propagation medium arranged in the furnace wall is connected with the photovoltaic conversion module, the photovoltaic conversion module is connected with the wireless transmitting module, the wireless transmitting module is connected with the wireless receiving module, and the wireless receiving module is connected with the upper computer. The system for detecting and sensing the temperature at the stack and bosh of the blast furnace online has the advantage that thermal radiation furnace temperature online detection sensors are arranged at the stack and bosh parts of the furnace wall of the blast furnace for detecting specific value of thermal radiation energy corresponding to the temperature of the blast furnace, so that non-contact blast furnace temperature real-time online detection is realized.