Constant-temperature spray drying system

The invention provides a constant-temperature spray drying system. The constant-temperature spray drying system comprises a spray tower, a control unit, a hot air conveying module connected with the control unit, a temperature sensor arranged at the top end of the interior of the spray tower and connected with the control unit, and a slurry atomization module connected with the spray tower. The spray tower comprises an air inlet in the top end and a powder outlet in the bottom end; the air inlet is connected with the hot air conveying module through a hot air pipeline; the control unit is usedfor generating an adjusting instruction to adjust the hot air conveying module according to the real-time temperature collected by the temperature sensor; the hot air conveying module is used for adjusting the hot air conveyed by the hot air conveying module according to the adjusting instruction to keep constant temperature in the spray tower; and the slurry atomization module is used for atomizing the slurry to be drie