KR890006831A - Method and apparatus for recovering metals and metal alloys - Google Patents

Abstract

No content

Description

Method and apparatus for recovering metals and metal alloys

As this is a public information case, the full text was not included.

1 is a schematic diagram of a melting gas generating furnace and its auxiliary equipment.

2 is a temperature curve in the melting gas generating furnace.

Claims (11)

In a method of recovering metals and metal alloys such as iron alloys by reducing rapid oxide in a reduction zone made of a coal bed through which the reducing gas passes, the lower static layer, which is degassed coal covering the liquid sump, which is a reduced metal and a slag, Provide; In order to provide a middle static layer and to form a high temperature reducing gas made of CO, an oxide material of fine particles separated from the middle static layer by introducing a gas of one of oxygen and oxygen-containing gas into the middle and static layers. Is introduced into the middle static layer; A method for recovering metals and metal alloys, characterized by providing an upper static layer and introducing a combustion gas, which is a carbon particle and one of oxygen and an oxygen containing gas, into the upper static layer. 2. The method of claim 1 wherein the oxide filler of fine particles has a maximum particle size. 2. The method of claim 1 wherein the three static layers consist of a coal having a particle size of 5 to 100 mm. 4. The method of claim 3 wherein the coal has a particle size of 5 to 30 mm. 2. The method of claim 1 wherein the thickness of the intermediate, static and top static layers is maintained between 1 and 4 m. The burner according to claim 1, wherein the waste gas passes through the static layers constituting the reducing zone, dusty carbon particles are separated from the waste gas, and the burner is directed to a burner in which the carbon particles are directed to the upper static layer with one of oxygen and oxygen-containing gas. A method for recovering metals and metal alloys, characterized in that supplied. 7. The method of claim 6, wherein the separated carbon particles are introduced into the burner at a high temperature. 7. The method of claim 6, wherein the waste gas removed from the carbon particles is used as a carrier medium for the oxide charge of the fine particles. Upper part including coal charging slot and gas discharge pipe, side wall of dissolving gas generating unit installed through supply pipe for coal and one of oxygen and oxygen containing gas, and lower part for collecting molten metal and dissolving slag. It is made into a type including a melting gas generating furnace having a portion of a refractory internal organ storage path having a portion, and recovering metals and metal alloys such as iron alloys by reducing metal oxides in a reduction zone consisting of a coal bed through which reducing gas passes. In the apparatus, the bottom static coal bed, the middle part, the static sedimentation bed and the top static bed provide a door, three overlapping static beds, and a bottom static bed and middle of degassed coal covering the liquid sump, which is reduced metal and slag. In the zone between the secondary bottom layers, a ring of blowpipes for either gas of oxygen or oxygen-containing gas is provided to form CO A true high temperature reducing gas is formed, at a distance slightly above the ring of the blown pipe, a ring of oxide charge of fine particles is provided, and a middle static layer and a top static at a distance slightly above the ring of oxide charge of the fine particles. In a zone between the layers, a ring of burners filled with carbon particles and one of an oxygen and an oxygen containing gas. 10. The method of claim 9, further comprising means for fluidly connecting the hot cyclone and hot cyclone ends to the burner ring provided in the gas discharge pipe to separate the carbon particles from the waste gas. Device. 11. The apparatus of claim 10, further comprising: a high temperature cyclone having a discharge end; A connector for fluidly connecting the high temperature cyclone and the additional high temperature cyclone; Charging means for an oxide charging material entering said connecting pipe; And a right tube connecting the discharge end of the additional high temperature cyclone to the ring of the blown pipe for the oxide charge material. ※ Note: The disclosure is based on the initial application.