Long nozzle coating temperature adjusting system and method in continuous casting production

The invention provides a long nozzle coating and temperature adjusting system and method in continuous casting production, relates to the technical field of steel smelting, and aims to perform coating and temperature adjusting on a long nozzle in the continuous casting process, so that too fast temperature reduction when molten steel passes through the long nozzle in the continuous casting production can be avoided, and low-temperature smelting in steelmaking-continuous casting production is realized; blowing cooling can be carried out when the temperature of the molten steel is high, the superheat degree of the molten steel is reduced, and the casting blank solidification structure is improved; the system comprises a temperature adjusting sleeve, a mechanical arm, a data acquisition unit and a control unit, the temperature adjusting sleeve is arranged on the periphery of the long nozzle; the mechanical arm is connected with the temperature adjusting sleeve and used for controlling the action of the temperatu