According to the safety production device for atomizing and pulverizing the high-temperature-resistant submerged pump pressurized melt through the microporous
nozzle, a melt preparation and power part is composed of a
smelting furnace, a
melt pool and the submerged pump, a melt conveying and atomizing part is composed of a conveying
pipe, a variable-
diameter pressurizing
pipe and a microporous
nozzle atomizer, and a pressure-stabilizing safety part is composed of a pressure relief
pipe, a safety floating chamber and a return pipe. A
powder conveying and collecting part is composed of a
powder preparing chamber, a
heat exchanger, a
powder collector, an air return pipe, a filter, a fan, a refrigerating
machine, an air inlet pipe and a supplementary air tank. A gravity floater is installed in a safety floating chamber, after the pressure of a pressure relief pipe exceeds a set index, melt can lift the gravity floater to relieve pressure through a return pipe, and the gravity floater is reset after the pressure is normal; the device adjusts the
granularity of the powder prepared by the device by adjusting the pressure of the submerged pump and the aperture of the microporous atomizing
nozzle. The device solves the safety problems of overhigh pressure adjustment and
continuous operation, the situation that melt is solidified in a pipeline after low temperature is generated in production is avoided, the operation of starting and stopping equipment is simple, and the particle size of powder is controllable to regulate and control.