KR880005276A - Method and apparatus for recovering metals and metal alloys - Google Patents

Abstract

No content

Description

Method and apparatus for recovering metals and metal alloys

Since this is an open matter, no full text was included.

1 is a schematic view of a melting gas generating furnace and associated means according to the present invention.

Claims (10)

In a method for recovering metals and metal alloys, such as iron alloys, by reducing metal oxides in a reduction zone made of a coal bed through which reducing gas passes, the lower static layer, which is a degassed coal covering the reduced sump and slag liquid sump, middle A static bed and a top static bed are provided: through the three-layer static coal bed, inducing a mass oxide charge under gravity; In order to make a high temperature reducing gas consisting of C0, one of oxygen and oxygen containing gas is introduced into the middle static bed, and the combustion gas of carbon particles and one of oxygen and oxygen containing gas is supplied to the upper static bed. Method of recovering metals and metal alloys. The method of claim 1, wherein the bulk oxide filler has a particle size of 6 to 50 mm. 3. The method of claim 2, wherein the bulk oxide filler has a particle size of 10 to 30 mm. 2. The method of claim 1 wherein the coal bed is made of coal having a particle size of 5 to 100 mm. The method of claim 4, wherein the coal seam has a particle size of 5 to 30 mm. The method of claim 1 wherein the thickness of the middle static layer and the top static layer is maintained between 1 and 4 m. 2. The burner of claim 1, wherein the waste gas passes through the static layers constituting the reducing zone, separates the dusty carbon particles from the waste gas, and directs the carbon particles together with one of the oxygen and oxygen containing gases to the upper static bed. A method for recovering metals and metal alloys, characterized by consisting of a feeder. 8. The method of claim 7, wherein the separated carbon particles are introduced into the burner at a high temperature. The upper part including the charging hole for charging the coal and the bulk oxide charging material, the side wall of the melting gas generating passage installed through the discharge pipe for waste gas and the supply pipe for one of coal and oxygen and oxygen containing gas, and molten metal And a metal such as an iron alloy by reducing the metal oxide in a reduction zone composed of a coal-fired upright shape dissolving gas generating furnace having a lower portion installed to collect over-dissolved slag. An apparatus for recovering a metal alloy, comprising: a lower static coal layer, an intermediate static coal layer, and an upper static coal layer overlapping a liquid sump of a reduced metal and slag, and a blow pipe for any one of oxygen and oxygen-containing gas; Ring is provided in the area between the bottom static coal layer and the middle static coal layer. Small devices which contain the ring of a burner in a gas charged with the carbon particles in the gas recovering metals and metal alloys characterized in that provided between the middle and upper static static coal seam, a predetermined distance away over the section. 10. The method according to claim 9, further comprising a hot cyclone having a discharging end and means for fluidly connecting the hot cyclone discharging end with the ring of the burner to separate the carbon particles from the waste gas. An apparatus for recovering metals and metal alloys, characterized in that. ※ Note: The disclosure is based on the initial application.