| 摘要 |
PURPOSE: An apparatus for covering metal powder is provided, which reduces a fuel cost for melting pitch and resins, decreases environmental pollution, simplifies the process without a separate pulverizing process of the covered metal powder, and easily stores and discharges the metal powder since it is formed in a spherical particle form. CONSTITUTION: The apparatus for covering metal powder comprises a hollow cylindrical outer container(10); an inner container(20) installed at the inner side of the outer container, wherein pitch, resins and metallic powder are charged into the inner container, and the pitch and resins are melted by the heating source gas by forming a flue(25) between the inner container and the outer container; an agitator(30) mixing the pitch, resins and metallic powder inside the inner container by having an impeller(32) placed at the inner side of the inner container; a gas collecting pipe(40) equipped with an ejecting gas collecting port(43) installed adjacently to a covered metallic powder outlet(16), a gas exhausting port on the upper part of the inner container and a gas guiding port at a burner inlet, wherein these are connected by the flue in the gas collecting pipe(40); and an ejecting pipe(50) equipped with a compressed air ejecting port(52) installed adjacently to a discharging nozzle(28), and discharging the metallic powder as ejecting the covered metallic powder flown out from the discharging nozzle(28) toward a covered metallic powder discharging port(16) for cooling the metallic powder.
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