Patent ID: 8632326

Claim:
A manufacturing device of spherical magnesium powder, comprising: a gas compressor ( 30 ) for receiving argon gas from an argon gas storage unit ( 10 ) and compressing the argon gas; a gas heating unit ( 40 ) for heating argon gas compressed in the gas compressor ( 30 ); a tundish ( 70 ) for receiving molten magnesium from a magnesium melting furnace ( 50 ) in which a magnesium ingot is melted and molten magnesium is formed; a reactor ( 80 ) which is provided with a nozzle injection unit ( 81 ) for receiving argon gas heated by the gas heating unit ( 40 ) and injecting the argon gas into the reactor, and which forms magnesium powder by colliding molten magnesium supplied from the tundish ( 70 ) with argon gas; a recovery unit ( 90 ) for recovering magnesium powder produced in the reactor ( 80 ); a first gas cooler ( 100 ) for cooling the argon gas passing through the recovery unit ( 90 ); a filtering unit ( 110 ) for removing dust contained in the argon gas that was cooled by the first gas cooler ( 100 ); a buffer tank ( 130 ) for receiving filtered argon gas from the filtering unit ( 110 ); a compression blower ( 140 ) for receiving the argon gas from the buffer tank ( 130 ) and adiabatically compressing the argon gas; a second gas cooler ( 150 ) for receiving the argon gas having increased temperature by compression in the compression blower ( 140 ) and cooling the argon gas; and an adiabatic expansion duct ( 170 ) for supplying the argon gas from the second gas cooler ( 150 ) and adiabatically expanding the argon gas, for supplying the expanded argon gas to the reactor ( 80 ), and for cooling magnesium powder produced inside of the reactor ( 80 ), wherein a refining furnace ( 60 ) for refining molten magnesium is further provided between the magnesium melting furnace ( 50 ) and the tundish ( 70 ) to supply refined molten magnesium to the tundish ( 70 ), wherein the refining furnace ( 60 ) comprises: a heat-resistant pot ( 61 ) inside of which a barrier ( 61 a ) having a predetermined height is formed to partition an inner space thereof; a cover ( 62 ) which opens and closes opened upper face of the heat-resistant pot ( 61 ), and on one side of which a casting melt pipe ( 62 a ) is connected to the magnesium melting furnace ( 50 ) to guide molten magnesium to one space of the partitioned inner space of the heat-resistant pot ( 61 ); a tapping vessel ( 63 ) provided on another space of the partitioned inner space of the heat-resistant pot ( 61 ), wherein a bottom face of the tapping vessel having a casting melt input hole ( 63 a ); a cylinder valve ( 64 ) provided in the cover ( 62 ) to open and close the casting melt input hole ( 63 a ) of the tapping vessel ( 63 ); a transfer pipe ( 65 ) provided on the cover ( 62 ) to guide molten magnesium inside the tapping vessel ( 63 ) to the tundish ( 70 ); and a constant amount casting melt transferring unit ( 66 ) which is arranged to pass through the cover ( 62 ) and allows a constant amount of molten magnesium to be outputted through the transfer pipe ( 65 ).