摘要:
A method is provided for producing matte such as copper or nickel matte or crude metal such as blister copper in a suspension smelting furnace such as a flash smelting furnace or a flash converting furnace. Also provided is a suspension smelting furnace such as a flash smelting furnace or a flash converting furnace. The suspension smelting furnace comprises a reaction shaft, a settler in communication with a lower end of the reaction shaft, and an uptake shaft. The settler extending in two opposite directions from a landing zone for a jet of oxidized suspension below the reaction shaft in the settler so that the settler comprises a first settler part on a first side of the landing zone and a second settler part on an opposite second side of the landing zone.
摘要:
The invention relates a floating entrainment metallurgical process. In this process, the reaction gas and the powdery materials are injected into the reaction furnace, aiming to obtain a controllable highly rotating and floating state and reach the ignition point under the high-temperature radiation of the reaction furnace to combust intensely. Meanwhile, the rotating fluid injected in the reaction furnace will drive the furnace gas, and forms a relatively low-temperature circular backflow protection area around the rotating fluid. The reaction gas is tangentially fed into the rotating generator along numbers of rotary channels to form a controllable rotating airflow, in addition, a conical exit air controller that can be moved up and down is adopted to control the exit area of the rotating generator, thus controlling the velocity of the reaction gas into the reaction furnace; the powdery materials fall freely around the reaction gas and are involved in the high-speed rotating airflow, forming a rotating fluid, of which the powdery materials are highly dispersed into the reaction gas, moving downwards along the radial high-speed rotating axle. For the purpose of this invention, a steplessly adjusted reactor is as well referred to in this invention.
摘要:
The invention relates to a suspension smelting furnace comprising a reaction shaft (1), an uptake shaft (2), and a lower furnace (3), as well as a concentrate burner (4) for feeding reaction gas and fine solids into the reaction shaft (1) of the suspension smelting furnace. The concentrate burner (4) comprises a fine solids discharge channel (5) that is radially limited by the wall (6) of the solids discharge channel, a fine solids dispersion device (7) in the fine solids discharge channel (5), an annular reaction gas channel (8) that surrounds the fine solids discharge channel (5) and is radially limited by the wall (9) of the annular reaction gas channel (8), and a cooling block (10) that surrounds the annular reaction gas channel (8). The cooling block (10) is a component that is manufactured by a continuous casting method. The cooling block (10) is attached to the arch (11) of the reaction shaft (1) and the wall (9) of the annular reaction gas channel (8), so that the discharge orifice (12) of the annular reaction gas channel (8) is formed between a structure (13), which is jointly formed by the cooling block (10) and the wall (9) of the annular reaction gas channel (8), and the wall (6) of the solids discharge channel. The invention also relates to a concentrate burner (4) for feeding reaction gas and fine solids into the reaction shaft (1) of a suspension smelting furnace.
摘要:
This invention relates to a metallurgical process for the production and/or treatment of at least one metal or ore in a reactor (1, 3), from which a waste gas stream loaded with molten particles and/or vaporous constituents is discharged via a waste gas conduit (7) and subjected to an aftertreatment by supplying at least one cooling gas or cooling gas mixture. On the side of the waste gas conduit (7) facing the reactor (1, 3) a cooling gas or cooling gas mixture (9), whose temperature is lower than that of the waste gas stream, is injected into the waste gas conduit (7) with a high velocity. Furthermore, this invention relates to a corresponding plant.
摘要:
Vorrichtung zur Anreicherung von Kupfer oder Nickel, mit einem Schwebeschmelzofen und einem an den Schwebeschmelzofen angeschlossenen Abhitzekessel zur Abführung und Abkühlung von Abgasen aus dem Schwebeschmelzofen. Der Schwebeschmelzofen weist einen Reaktionsschacht, einen vertikalen Steigschacht und einen den Reaktionsschacht mit dem Steigschacht verbindenden Herd zur Aufnahme einer kupferhaltigen oder nickelhaltigen Schmelze auf. Der Abhitzekessel weist einen ersten an den Steigschacht angeschlossenen vertikal orientierten Kesselabschnitt auf.
摘要:
Metallurgical vessel comprising a bottom portion, a sidewall and a lance arrangement of at least two lances for supplying oxygen containing gas to the interior of the vessel in operation wherein each lance comprises an end portion for emitting oxygen containing gas characterised in that the lance arrangement is suitable for increasing in operation a downwardly directed flow of post combusted gases at the side wall of the vessel and an upwardly directed flow of post-combusted gases in the centre of the vessel.
摘要:
The invention relates to an apparatus for feeding finely divided solids, containing at least sulphidic metal concentrate, and oxygenous oxidizing gas into a suspension smelting furnace, said apparatus comprising elements for conducting solids and oxidizing gas into the suspension smelting furnace. According to the invention, in the feed office (7) of the suspension smelting furnace through which solids (2) and oxidizing gas (3) are fed into the action chamber (1) of the suspension smelting furnace, there is installed a suspension creation chamber (5, 11) for a suspension containing solids (2) and at least part of the oxidizing gas (3) can be mixed to form a suspension before they flow into the reaction chamber (1) of the suspension smelting furnace.
摘要:
The present invention provides a method of converting copper containing material to blister copper comprising: (a) providing copper containing material comprising copper sulfides and iron sulfides, whereby the copper containing material comprises at least 35 wt % copper of the total weight of the copper containing material; (b) reacting the copper containing material in a furnace with an oxygen containing gas, in the absence of flux, to effect oxidation of iron sulfide and copper sulfide, and controlling injection of the oxygen containing gas and the temperature so that the resulting converter slag is in a molten phase to obtain blister copper and converter slag.