TH34843C3 - Direct smelting vessel and direct smelting process - Google Patents

Abstract

DC60 (28/07/52) This invention reveals the production of metals from metallic materials fed directly into the smelting vessel. The vessel consists of a melting basin with a layer of metal (15) and a layer of sludge (16) on a layer of metal. And there is a void of continuous gas flow (31) above the slag layer. The hearth is made of refractory material. The hearth floor will have a base (3) and a side wall (55) in contact with the molten metal. And the side wall (5) expands upwards from the side wall (55) of the hearth and comes into contact with a layer of sludge. And the gap with the gas flowing continuously Side wall at Continually exposed to the gap where the gas flows It consists of a coolant panel (57) and a layer of sludge on the panel. One or more (13) nozzles / nozzles that expand into the container. And injecting oxygenated gas into a container above the metal And a number of injection tubes / nozzles (11) that feed at least part of the fed metal material. And carbon charcoal material Along with the carrier gas into the melting basin to penetrate the metal layer The invention reveals the production of metal from metallic materials fed directly into the metal smelting vessel. The vessel consists of a melting basin with a layer of metal (15) and a layer of sludge (16) on a layer of metal. And there is a void of continuous gas flow (31) above the sludge layer. The hearth is made of refractory material. The socket floor has a base (3) and a side wall (55) in contact with the molten metal. And the side wall (5) expands upwards from the side wall (55) of the hearth and comes into contact with a layer of sludge. And the gap with the gas flowing continuously Side wall at Continually exposed to the gap where the gas flows It consists of a coolant panel (57) and a layer of sludge on the panel. One or more (13) nozzles / nozzles that expand into the container. And injecting oxygenated gas into a container above the metal And a number of spray tubes / nozzles (11) that shield at least part of the metal shielding material. And carbon charcoal material Along with the carrier gas into the melting basin to penetrate the metal layer

Claims (2)

Disclaimer (all) which will not appear on the advertisement page: 1. A container which produces metal from a feed material containing metal by direct smelting process, in which the vessel has a melting basin with a metallic layer. And layers of slag And the transmission area created by splashing, dripping and distant is the path of the melted material. And afterwards into a distant gas gap Continuous on the metal layer And there is a continuous gas-flow gap above the slag layer, where the container includes a) a fire-suppression floor made up of a heat-resistant material with a base. And the sides in contact with the molten metal; b) the side wall, which extends outward from the side of the hearth And contact with the sludge layer and the transmission area And a continuous gas-flow gap, where the side wall in contact with Continuous gas gaps including coolant panels And the layer of slag on the panels, and the heat loss through the cooling water panel is less than 150 kW / m2 of panel area being opened to the inside of the Vessels under normal operating conditions; c) one or more spray tubes / nozzles extending downward into the container and injecting oxygenated gas into the container above the metal layer; d) a number of spray tubes / nozzles. That at least partially injected of the feed material containing metal And the charcoal material with gas is carried into the melting bath to pass through the metal layer and e) the path for the molten metal. And the residue from the container. 2. Containers as defined in claim 1, which include further with the roof that is in contact with the gaps. The gas flows continuously. And roof including cooling water panel And the layer of slag on the panel 3. Vessels as set out in claim 1 or claim 2, where each coolant panel Including the inner coolant pipe (Relative to the inside of the container) with a crooked shape, water inlet at one end and water outlet at the other 4. Vessel as set out in claim 3 where each coolant panel includes further. Water pipe Crooked outer coolant, water inlet at one end And water outlet at the other end 5. Containers as defined in claim 4, where each coolant panel includes the following materials. Heat resistant, dense or fired into panel gaps that are not penetrated by pipes 6. Containers as defined in claim 4 or claim 5, where each inner coolant pipe is And outside, including parallel horizontal sections extending across the width of the panel, and the arc that connects the ends of the horizontal sections together. 7. Containers as defined in claim 6, where the pipes The coolant outside is moved from the water pipes. Coolant inside so that the horizontal portion of the outer coolant hose is not completely behind the horizontal part. 8. Vessel, as set out in any of the preceding claims, where the inner coolant hoses (Relative to the inside of the container) that is opened to the surface of each coolant panel, including the finishing part, the corrugation surface. Or buttons, which increase the exposed surface area of the panel And the add-on 9. Vessels, as set out in either of the preceding clauses, in which each coolant panel is adhered to the surface. This includes parts, such as pivots and cups, which extend inward from the front end that are opened up to the inside of the panel and promote the formation. And the increase in the solidified slag on the panel 1 0. Vessels as set out in any of the preceding claims, which at least part Of the side walls in contact with the sludge layer, including the coolant panel, the heat-resistant material lining that is placed Location into the inside of the panel. And the layer of residue on the lining. 1 1. The container, as defined in any of the preceding claims, in which the side wall includes Cooling water panel touching the transmission area 1 2. Containers as defined in claim 11, where heat is drawn through the coolant panel. Enough to create And maintain a layer of slag on the coolant panel exposed to the transmission area 1 3. Containers as set out in any of Clause 11 to 12, where the side wall This includes the coolant panel above the transmission area 1. 4. Vessel as set out in claim 13, where heat is drawn through the coolant panel. Enough to create And maintain a layer of sludge on a panel above the transmission area 1. 5. Containers, as set out in any of the preceding clauses, in which the sprinkler / nozzle for The injection of solid material extends outwards. And toward the inside into the container at an angle of 30-60 ° to the vertical. 1 6. The container, as defined in any of the preceding claims, where the bottom end of the pipe Injection / nozzles for injecting solid material above the molten metal level 1 7. Vessels as set out in any of Clause 11 to 14, where the injecting material is Solids through a nozzle tube / nozzle for the injecting solid material creates a continuous upward motion of the splash, drop and flow of the molten material into the gas-flow gap.1 8. Vessels, as defined in any of Claims 11 through 14 and 17, where one or more injector hoses / nozzles / nozzles that inject oxygen-containing gas are positioned to inject the available gas. Oxygen enters the transmission area to perform the post-combustion reaction of carbon monoxide and hydrogen in the transport zone. 1 9. Vessels as set out in either of the preceding claims where the puncture path Including the front furnace, which can cause the molten metal to be released continuously from the container 2 0. Direct smelting process for producing metal from metal-containing feeders in Vessels as set out in either of the preceding clauses, whose processes include the procedure of (a) the construction of a melting bath with a metal layer. And the slag layer on the metal layer. (B) Injection at least part of the feed material containing the metal And carbon charcoal material The solid with gas is carried into the melting bath through a number of injection tubes / nozzles. And the smelting of materials Consists of metals in the metal layer, where the injection of solids creates a gas flow from the metal layer which Bring the melt material in the metal layer And carry the molten material upward following the splash, drip and flow in a path and form a transmission zone in a continuous gas-flow gap in the vessel above the sludge layer, by splashing, dripping. And the flow is the way of the melt material touching the side wall of the container (C) the injection of oxygenated gas into the container through one or more spray hoses / nozzles and the combustion reaction gas after it is released from the melting bath, where Splashes, drips and distances are the way of the ascending melting material. And after that down, making it more convenient to transfer And (d) control of solid injection and / or injection of oxygenated gas and / or the flow rate of water through the coolant panel so that the heat loss through the coolant panel is less. 150kW / m2 of panel area exposed to the inside of the container under normal operating conditions 2. 1.Process as defined in claim 20, where heat loss through the coolant panel is less than 100 kW / m2 of panel area exposed to the inside of the container under normal operating conditions 2. 2. Process as defined in claim 21, where heat loss through coolant panels is less than 90 kW / m2 of panel area exposed to the inside of the container under normal operating conditions.