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This invention belongs to the field of ceramic wall and floor tile production, specifically relating to a digital ceramic slurry spraying device with a liquid cooling system. It mainly includes: a ceramic slurry spraying head, a slurry connecting pipe, a solenoid valve suitable for ceramic slurry, a solenoid valve heat dissipation and temperature control device, an integrated circuit board and control panel, and a fixing bracket. The solenoid valve heat dissipation and temperature control device mainly includes: a cooling tank, a cooling tank sealing cover, a coolant inlet, a coolant outlet, a solenoid valve fixing device, a refrigeration unit, a temperature controller, etc. This invention enables glazing and slurry spraying equipment using a solenoid valve to operate continuously at high frequency for extended periods.