Abstract: A furnace stave comprising a plurality of internal channels or conduits for circulating cooling fluid through the stave; an inlet and an outlet channel associated with each internal channel or conduit; wherein one of the internal channels or conduits is disposed in a protrusion from the stave.

Abstract: A cooling plate for use in a blast furnace is described. The cooling plate contains a copper body having an inner face containing ribs parallel therebetween, having first extremities opposite therebetween and separated by grooves having second extremities opposite therebetween. At least one of these ribs contains at least one housing located between its first extremities and containing at least one insert made of a wear resistant material that increases locally the wear resistance of this rib.

Abstract: All of a cast-iron or cast-copper stave cooler's weight is supported inside a furnace containment shell by a single gas-tight steel collar on its backside face. All the coolant piping in each cooler has every external fluid connection collected and routed together through the one steel collar. A wear protection barrier is disposed on the hot face. At least one of horizontal rows of ribs and channels retain metal inserts or refractory bricks, or pockets that assist in the retention of castable cement and/or accretions frozen in place from a melt, or an application of an area of hardfacing that is welded on in bead, crosshatch, or weave pattern.

Abstract: All of a cast-iron or cast-copper stave cooler's weight is supported inside a furnace containment shell by single gas-tight steel collar on the backside. All the coolant piping in each cooler has every external connection collected and routed together through the one steel collar. A wear protection barrier is disposed on the hot face. Such is limited to include at least one of horizontal rows of ribs and channels that retain metal inserts or refractory bricks, or pockets that assist in the retention of castable cement and/or accretions frozen in place from a melt, or an application of an area of hardfacing that is welded on in bead, crosshatch, or weave pattern.

Abstract: Supplementary cooling elements in addition to a primary cooling element of a furnace. The supplementary cooling elements, with two or more components, may be inserted from the outside of the furnace into holes that pass through and the primary cooling element such that the cooling elements protrude beyond the inner surface of the primary cooling element. An inner one of the components of the supplementary cooling element may be received by an outer one of the components in a manner that forces the outer component into a thermally conductive pressure connection with the primary cooling element.

Abstract: A plate cooler stave for use in a furnace having a shell wall, comprising: a top portion housing at least one cooling fluid inlet and at least one cooling fluid outlet for the flow of cooling fluid to and from the plate cooler stave from outside the furnace; and a main body disposed at an angle relative to the top portion so that the main body may be inserted into the furnace through an opening defined by the shell wall, wherein upon installation, at least a part of the top portion is disposed in the opening.

Abstract: A furnace stave comprising a plurality of internal channels or conduits for circulating cooling fluid through the stave; an inlet and an outlet channel associated with each internal channel; wherein the inlet channels of two internal channels are fed by the same inlet pipe or conduit. In another preferred aspect, the inlet channels of two internal channels fed by the same inlet pipe or conduit may or may not be overlapping or in fluid communication with each other.

Abstract: A stave cooler for a metallurgical furnace includes a panel-like body having a front face for facing the interior of the metallurgical furnace, an opposite rear face, an upper face, an opposite lower face, and two side faces. At least one internal coolant passage is arranged within the panel-like body. The panel-like body is provided with a ledge on its front face extending between the side faces for being arranged in a horizontal plane. At least one protection element is provided for covering at least part of an upper face of the ledge. The protection element includes a first lateral portion, a second lateral portion, and a central portion. The lateral portions each include a widened front section and a narrow connection section. The panel-like body is provided with at least one through hole arranged for passing each of the lateral portions and the central portion of therethrough in turn.

Abstract: A panel cooled with a fluid, for metallurgic furnaces, includes a first chamber having a face which, in assembly conditions, is configured to face an interior of a metallurgic furnace and an opposite face in thermal contact with a face of a second chamber whose opposed face is configured to face, in assembly conditions, an external part of the metallurgic furnace. The first and second chambers are mutually independent. The first and second chambers each include an inlet and outlet of a cooling fluid. The panel has a first working configuration in which the first chamber is passed by a first cooling fluid and the second chamber is passed by a second cooling fluid different from the first cooling fluid, and a second working configuration in which the first chamber is passed by the second cooling fluid and the second chamber is passed by the first cooling fluid.

Abstract: Embodiments of the present invention comprise a refractory delta made from a refractory material having a cold-face side and a hot-face side. One or more electrode apertures are located in the refractory delta for receiving one or more electrodes. One or more cooling apertures extend from the cold-face side of the refractory material to adjacent the hot-face side of the refractory material. The one or more cooling apertures may further comprise a copper tube. A cooling system delivers a cooling liquid to the one or more cooling apertures, and the cooling liquid draws heat from the adjacent refractory material, including the hot-face side, and evaporates to allow replacement cooling liquid to further draw heat from the adjacent refractory material.

Abstract: A supporting frame and thin stave cooler for a metallurgical furnace comprises a metal structure fastened to the cold face of the thin stave cooler that adds strength and rigidity. The thin stave cooler itself is lightened, thinned, and simplified to take optimal advantage of the supporting frame and its provisions for mounting and attaching the thin stave cooler assembly to the inside walls of a furnace containment shell. Water is circulated in the thin stave cooler through feed and discharge piping connections that pass through the supporting frame and are sleeved by protection sleeves. The protection sleeves can serve as a primary or secondary support system when they are welded between the furnace containment shell and the supporting frame when first installed.

Abstract: A heat exchanger 10 includes a conduit 12 for conveying cooling fluid relative to a body to be cooled. A heat transfer arrangement 62 is arranged in communication with an interior of the conduit 12, the heat transfer arrangement 62 and the conduit 12 together defining an assembly that is mountable adjacent the body to be cooled, convective heat exchange occurring, in use, due to movement of the cooling fluid relative to the body and to the heat transfer arrangement 62 of the assembly and radiant heat exchange occurring between the body and at least part of the heat transfer arrangement 62 of the assembly.

Abstract: An elastically interconnected cooler compressed hearth comprises a concave dished bottom lined with a sub-layer and a working layer of hearth bricks. Cylindrical walls that rise up from the rim of the concave dished bottom are constructed with one or more tiers of coolers shaped into arc segment blocks that are joined together by their flanges to form complete rings. The outer perimeter of the hearth brick within the ringed tiers is inwardly compressed toward the center to disallow any leaks from forming between the separate bricks. The coolers are elastically interconnected at their flanges by fasteners and springs. Each spring can be individually adjusted to obtain optimal working pressures on the whole of the core wall and hearth floor bricks.

Abstract: A cooling plate (10) for a metallurgical furnace in accordance with the present invention has a panel-like body (12) with a front face (14) and an opposite rear face (16), an upper edge (22) and an opposite lower edge (24), and a first side edge (18) and an opposite second side edge (20). The front face (14) is provided with grooves (32) extending between the first and second edges (18, 20), the grooves (32) forming lamellar ribs (34) on the front face (14), each rib (34) having a crest (37) and adjoining sidewalls (39, 39?), a base (38) being arranged in the groove (32) between two neighboring ribs (34). In accordance with an important aspect of the present invention, at least one of the grooves (32) is provided with a metal insert (40) arranged against at least one of the sidewalls (39, 39?).

Abstract: There is provided a method and an apparatus for treating return ores using plasma, capable of treating sintered return ores generated in a sintering process in a steel maker or return ores (iron ores) employed in other ironmaking process such as FINEX. The method of treating return ores using plasma includes: providing return ores sorted out by a sorting process; and bonding the return ores by fusing and agglomerating the return ores using plasma. Also, an apparatus for treating return ores using plasma includes a plasma heating device used to fuse and agglomerate sorted return ores. The return ores of a predetermined grain size are fusion-bonded and agglomerated using a flame of a plasma heating device. Particularly, the return ores can be treated in a massive amount to enhance productivity of a fusion-bonding process of the return ores. Furthermore, a great amount of sintered return ores generated in the sintering process can be subjected to a fewer number of re-treatment processes.

Abstract: A supporting frame and thin stave cooler for a metallurgical furnace comprises a metal structure fastened to the cold face of the thin stave cooler that adds strength and rigidity. The thin stave cooler itself is lightened, thinned, and simplified to take optimal advantage of the supporting frame and its provisions for mounting and attaching the thin stave cooler assembly to the inside walls of a furnace containment shell. Water is circulated in the thin stave cooler through feed and discharge piping connections that pass through the supporting frame and are sleeved by protection sleeves. The protection sleeves can serve as a primary or secondary support system when they are welded between the furnace containment shell and the supporting frame when first installed.

Abstract: A pipe and method of use for deterring or encouraging the retention of slag or other material in the operating area of a metal processing system as desired. The deterring pipe(s) and the encouraging pipe(s) may be combined with other deterring pipe(s) and/or other encouraging pipe(s) in any combination as desired.

Abstract: The invention relates to a cooling element, particularly for use in walls of furnaces that are subjected to high levels of thermal stress, and to a method for producing a cooling element. The cooling element is comprised of cast copper or of a low-alloyed copper alloy and is provided with coolant channels, which consist of tubes cast inside the copper or the copper alloy and which are placed inside the cooling element. In order to create a cooling element with an improved material bond on the contact surfaces between the cooling tube and the metal cast around it and thus with an increased heat transfer, the invention provides that the tubes of the coolant channels are provided with an electrolytic coating on the exterior thereof. The use of copper tubes has been shown to be particularly advantageous, and the coating of the tube exteriors thereof ensues in an electroplating bath.

Abstract: The invention relates to a cooling element to be used in the structure of a pyromettalurgical reactor used in the manufacturing of metals, which cooling element comprises a housing element mainly made of copper, provided with a channel system for the cooling medium circulation, made of pipe that is mainly made of copper; on the outer surface of the pipes forming the channel system, there is arranged a coating that has a lower melting point than the material of the housing element and the pipe. The invention also relates to a method for manufacturing the cooling element.

Abstract: Metallurgical processing installation comprising a metallurgical vessel lined internally with water cooled panels. A vessel access tower (61) fits around vessel (11) and supports a coolant flow system (62) to provide for flow of cooling water to and from the cooling panels within the vessel through water inlet and outlet connections (42,43) distributed around the exterior of the vessel. Coolant flow system (62) includes large diameter water supply and return pipes (66,67) mounted on an upper part of the tower (61) to extend around the upper end of vessel (11), a first series of vertical dropper pipes (68) of relatively small diameter connected to the main water supply pipe 66 and extending downwardly to connections with the water inlet connectors for respecting cooling panels of the vessel and a second series of smaller diameter vertical pipes (69) connected at their upper ends to the main return pipe (67) and at their lower ends to undivided outlet connectors for the cooling panels in the vessel.

Abstract: The invention relates to a process for the separation and recovery of non-ferrous metals from zinc-bearing residues, in particular from residues produced by the zinc manufacturing industry. The process comprises the steps of: subjecting the residue to a flash or agitated bath fuming step, thereby producing an Fe bearing slag and Zn- and Pb-bearing fumes; and extracting the Zn- and Pb-bearing fumes and valorising Zn and Pb; characterised in that CaO, SiO2 and MgO are added as a flux before or during the fuming step so as to obtain a final slag composition with: formula (I) all concentrations being expressed in wt %. The invention also relates to a single-chamber reactor for Zn-fuming equipped with one or more submerged plasma torches as heat and gas sources. [ Fe ] [ SiO 2 ] + [ CaO ] [ SiO 2 ] + [ Mg ? O ] 3 > 3.5 ; ? ? 0.1 < [ CaO ] [ SiO 2 ] < 1.

Abstract: There is provided a method and an apparatus for treating return ores using plasma, capable of treating sintered return ores generated in a sintering process in a steel maker or return ores (iron ores) employed in other ironmaking process such as FINEX. The method of treating return ores using plasma includes: providing return ores sorted out by a sorting process; and bonding the return ores by fusing and agglomerating the return ores using plasma. Also, an apparatus for treating return ores using plasma includes a plasma heating device used to fuse and agglomerate sorted return ores. The return ores of a predetermined grain size are fusion-bonded and agglomerated using a flame of a plasma heating device. Particularly, the return ores can be treated in a massive amount to enhance productivity of a fusion-bonding process of the return ores. Furthermore, a great amount of sintered return ores generated in the sintering process can be subjected to a fewer number of re-treatment processes.

Abstract: A heat exchanger system suitable for iron making furnaces and their supporting exhaust and cooling systems. The heat exchange has at least one panel of sinuously winding piping having an inlet and an outlet, an input manifold in fluid communication with the inlet of the at least one panel, an output manifold in fluid communication with the outlet of the panel, a cooling fluid flowing through the piping, and a stream of hot exhaust gasses flowing over the piping. The heat exchanger system is preferably fabricated using an aluminum bronze alloy. The operational life of the heat exchanger is extended and corrosion and erosion of the heat exchanger and related components is reduced.

Abstract: The invention relates to a cooling plate made of copper or a low-alloy copper alloy for metallurgic furnaces provided with high-strength sheet steel on the outside of the furnace. Said cooling plate has at least one, preferably at least two, coolant channels which extend inside the cooling plate, whereby coolant tube pieces used for feeding the coolant and discharging said coolant extend through the high-strength sheet steel of the furnace and are guided in an outer direction. Retaining tubes are arranged on the cooling plate and are provided with retaining disks which are arranged outside the high-strength sheet steel of the furnace and which fix the cooling plate in the direction of the inside of the furnace. The retaining tubes and retaining disks are preferably made of steel.

Abstract: Disclosed is a method for manufacturing a cooling element (1) to be used in the structure of a furnace used in metal processes, such as a flash smelting furnace, a blast furnace, an electric furnace or other metallurgical reactor, the cooling element having a copper housing (2) made of one single piece, in which housing there is formed a channel system (3) for the circulation of the cooling medium, lining elements (4) made of fireproof material, the housing and lining element including means for connecting them together, and the lining element (4) and the housing (2) are connected so that the lining element (4) can move in the vertical direction with respect to the housing (2). Also disclosed is a cooling element.

Abstract: A cooling system for the distribution and collection of a fluid coolant in a metallurgical vessel used in the processing of molten materials. The cooling system comprises a distribution system including an intake manifold, a plurality of headers attached to the intake manifold, and a plurality of distribution dispensers positioned along each header. A collection system, including a collection manifold, is positioned to collect the fluid coolant. The distribution dispensers are positioned to direct the fluid coolant towards the collection manifold and utilize the majority of the kinetic energy contained within the coolant to direct the coolant towards the collection manifold.

Abstract: A cooling plate (1) made of copper or a copper alloy for blast furnaces has a plurality of bore holes (6) for accommodating a cooling medium. The bore holes (6) are connected to a cooling medium intake (12) and a cooling medium outlet via connecting pipes (9) that are welded onto the cold side of the plate (5). Connecting pipes (9), at their plate ends (14), are furnished with flanges (15) that are formed by being flanged open. These flanges (15) are set into recesses (17) in the cold side of the plate (5), and are welded at their circumference by V seams (19) to the cold side of the plate (5).

Abstract: The invention relates to a cooling element, in particular to be used in connection with furnaces and the like related to metal production processes, said element comprising a housing (1) provided with a channel system (2) for cooling water circulation. At least part of the cooling element surface that may get into contact with molten metal is made of steel.

Abstract: A metallurgical furnace provided with a refractory lining and an outer furnace steel jacket, having copper cooling plates, wherein a flow of cooling medium flows through the cooling plates arranged between the furnace steel jacket and the refractory lining. Cooling medium pipes of the copper cooling plate provided for supplying and removing the cooling medium are guided through the furnace steel jacket to the exterior and are gas-tightly welded to the furnace steel jacket. The copper cooling plate is connected free of play in all spatial directions to the furnace steel jacket, in addition to attachment by way of the cooling medium pipes welded to the furnace steel jacket, by at least one fixed-point fastening element that is welded to the furnace steel jacket. The at least one fixed-point fastening element is arranged within at least one of the upper part and the lower part of the copper cooling plate in immediate proximity of the cooling medium pipes.

Abstract: The present invention relates to a cooling plate for use in the inner lining of metallurgical furnaces, especially smelting furnaces or shaft furnaces, and relates to a method for manufacturing a cooling plate. The cooling plate has a plate member, which is made of a copper material, and has integrated coolant channels. To manufacture the cooling plate, a raw ingot is provided, which is equipped with channels, and has a starting thickness that is greater than the final thickness of the plate member. The raw ingot is then deformed in a rolling step to reduce the starting thickness to the final thickness of the plate member and to deform the cross-sections of the channels. In this connection, the coolant channels obtain circularly oblong, final cross-sections.

Abstract: A cooling plate with reinforcing part for furnaces which are provided with a refractory lining. Coolant passages are arranged in the interior of the plate, which is provided with at least one additional cooling segment provided with a cooling passage into which a displacement body is inserted.

Abstract: Metallurgical reactor for the production of cast iron, consisting of a metal casing internally lined, at least partially, with refractory material and provided, in the region of the top closure, with a duct through which high-temperature ferrous material is introduced, said reactor being equipped with a first series of lances for injecting the comburent gas, which are suitably directed and arranged on at least a first bottom level situated in the vicinity of the crucible for collecting the cast iron and through which, in association with a comburent gas, coal of suitable grain size is blown by means of a suitable carrier gas. Said duct has suitable cooling means and is provided, in the bottom terminal part, with nozzles for blowing in compressed gas.

Abstract: A cooling system for a basic oxygen furnace or an Argon Oxygen Decarburization converter having a metallurgical converter vessel supported in a trunnion ring. The cooling system comprises a number of cooling panels. The cooling panels are mounted or attached to the exterior surface of the trunnion ring and positioned between the outside surface of the vessel and the trunnion ring. A coolant liquid or vapour is pumped or circulated through the cooling panels. The cooling panels are detachable from the trunnion ring for replacement and/or repair without requiring disassembly of the trunnion ring or the metallurgical converter vessel.

Abstract: A cooling system for a blast furnace includes a cooling circuit (10) closed by a return line (16) and at least one circulation pump (26, 26′, 26″) for circulating cooling water through the closed cooling circuit. An emergency feed line (36) with an emergency feed valve (38), which opens in case of a power failure, is connected to the cooling circuit (10). An emergency overflow valve (68) is located at the highest point of the closed cooling circuit (10). This emergency overflow valve (68) opens in case of a power failure, so that the closed cooling circuit (10) becomes an open cooling circuit (10) with an atmospheric pressure discharge at its highest point. A pressure vessel (34), which is connected to the emergency feed line (36), contains a certain volume of emergency water which is pressurised by a gas, so that, in case of a power failure, an emergency water flow establishes through the open cooling circuit (10).

Abstract: A cooling element designed particularly for furnaces, said element comprising a housing (1) mainly made of copper, and a channel system (6) provided in the housing for cooling medium circulation. At least on a part of the surface of the element housing (1), there is arranged, by means of a diffusion joint, a corrosion-resistant surface layer (2). The invention also relates to a method for arranging said surface layer in the cooling element.

Abstract: The invention relates to a casting mould for manufacturing of a cooling element for a pyrometallurgical reactor, wherein the casting mould is at least partly cooled and lined with a material that can withstand high temperatures. The invention also relates to the cooling element made in the mould, inside which cooling pipes made of nickel copper are placed during fabrication.

Abstract: A method for manufacturing a cooling element comprising a housing part and ceramic lining elements arranged on the housing part surface. The ceramic lining elements (2) are connected to the element housing part (1) by using in the joint between the lining elements and the housing part a soldering/brazing agent, wherein at least the junction area is heated at least up to the melting temperature of the soldering/brazing agent, so that there is created a joint with a good thermal contact with the element housing part (1) and a ceramic lining element (2). The invention also relates to a cooling element.

Abstract: The invention relates to a cooling element, in particular to be used in connection with furnaces and the like related to metal production processes, said element comprising a housing (1) provided with a channel system (2) for cooling water circulation. At least part of the cooling element surface that may get into contact with molten metal is made of steel.

Abstract: The invention relates to a cooling element for shaft furnaces, comprising an area (8) which is cross-flown by a cooling agent, resulting from an arrangement of at least one channel (9) which conveys a cooling agent internally and which leads into tubular elements (3,4) for feeding and discharging said coolant which are joined to the coo ling element (1,2), in addition to comprising edge areas with improved cooling properties. The respective channel conveying the cooling agent extends beyond the area where the tubular elements lead into the edge area at cooling agent feed and/or discharge level and has an expanded diameter in comparison with that of the internal channel (9), a guiding element (14) partially dividing the channel section (13) in the direction of flow in order to guide the cooling agent into the edge area of the cooling element and return said agent counter to the direction of said flow.

Abstract: A cooling plate for shaft furnaces, in particular, for blast furnaces, provided with a refractory lining, comprising cooling channels loadable with a cooling medium, wherein at least the front side facing the interior of the furnace is comprised of an ingot, produced preferably of copper or a low-alloy copper alloy and provided with grooves for receiving refractory material, is to be further developed such that it can be produced with a minimal material expenditure and a minimal manufacturing expenditure and can be easily mounted, and that with it a higher cooling capacity with reduced cooling medium throughput can be realized, wherein the own heat uptake is limited such that a significantly longer service life can be obtained.

Abstract: The invention relates to a method for the manufacture of a composite cooling element for the melt zone of a metallurgical reactor, whereby the element is manufactured by attaching ceramic lining sections to each other by copper casting and forming at the same time a copper plate equipped with cooling water channels behind the lining. The invention also relates to composite cooling elements manufactured by this method.

Abstract: The invention concerns a method for cooling a shaft furnace loading device, said loading device being equipped with a ring-shaped rotary joint (40), provided with a fixed ring-shaped part (56) and a rotating ring-shaped part (46), for supplying cooling liquid to a rotating cooling circuit (36, 38). The invention is characterized in that it consists in feeding the joint (40) fixed part (56) with cooling liquid such that a leakage flow passes in a separating ring-shaped slot (58, 60) between the fixed part (56) and the rotating part (46) of the joint (40), to form therein a liquid joint. Said leakage flow is then collected and drained without passing through the cooling circuit (36, 38).

Abstract: A blast furnace of the shaft furnace type for continuously smelting treated iron ores into liquid pig iron includes a furnace wall of refractory materials. The furnace wall is surrounded by a metal jacket particularly in the lower portion of the blast furnace, the bosh and the hearth arranged underneath the bosh. The blast furnace further includes water-cooled cooling elements, for example, plate-type cooling elements arranged between the refractory furnace wall and the metal jacket. At least those of the water-cooled cooling elements arranged in the hearth area of the blast furnace and between the hearth furnace wall and the metal jacket surrounding the hearth furnace wall are made of a material of high thermal conductivity, such as copper, wherein the thermal conductivity is at least five times the thermal conductivity of cast iron.

Abstract: A wall structure for a metallurgical vessel at the location where the vessel wall, on the hot side, is in contact with liquid metal and/or liquid slag, in particular for the hearth of a shaft furnace, comprising a steel plate lining (2), inside which lining at least one layer of refractory brickwork (15, 16, 17) is arranged, the steel plate lining (2) being joined to the layer (layers) of brickwork by means of mortar joints (5) and/or ramming compound joints (5) to form a cohesive structure, wherein metal bars (11) which run in the circumferential direction inside the steel plate lining (2) and project into the wall are present, which bars are connected to the outer side of the steel plate lining by means of attachment means (20) running through the steel plate lining, each assembly comprising a metal bar (11) and its attachment means (20) and the steel plate lining (2) forming, in the vertical direction, a unit which is sufficiently elastic to maintain a surface-to-surface contact along horizontal surfaces b

Abstract: A furnace-cooling block comprises a UNS-type C71500 schedule-40 water pipe cast inside a pour of electrolytic copper UNS-type C11000 de-oxidized during the casting process, or melted in an inert environment, to produce a high-copper approximating UNS-type C81100. A resulting fusion of the pipe to the casting is such that the differential coefficient of expansions of the two copper alloys involved does not exceed the yield strength of the casting copper during operational thermal cycling. The melting point of the copper alloy used in the pipe is such that a relatively thin-wall pipe may be used with a sand packing during the melt.

Abstract: The steelworks converter on the vessel cone of which a cone cooling system is provided, having sinuously arranged lines for channeling the cooling medium, which open into at least one channel-like collector in the top and bottom regions of the converter head. At least one cooling medium supply and discharge is provided for the cooling medium. Collecting pipe is provided in the region of the bottom collector, that the collecting pipe is spaced away from at least one of the side walls of the bottom collector. The collecting pipe has at least one closable drain and is in communication with the bottom collector in such a way that the cooling medium in the collector can be channeled into the interior of the collecting pipe.

Abstract: A structural member of a furnace body for a shaft furnace includes a metallic structural member (1) having a flow path for a coolant therein; inner furnace refractories (2) provided on a cooling surface of the metallic structural member; metallic supporting members (3) for connecting which support the inner furnace refractories on the metallic structural member; and heat insulating members (4) arranged between the metallic supporting members and the inner furnace refractories.

Abstract: Refractory wall structure, suitable in particular for use in a metallurgical vessel for a continuous production of crude iron in a smelting reduction process under conditions of an extremely high thermal load in a highly abrasive environment of molten slag with a high FeO content, comprising, going from the outside to the inside, (1) a steel jacket; (2) a water-cooled copper wall; (3) water-cooled copper ledges extending towards the inside; (4) a lining of refractory material resting on the ledges.

Abstract: Cooling plates for shaft furnaces, particularly blast furnaces, provided with refractory linings, are made of copper or a low-alloy copper alloy and are provided with cooling agent ducts in their interiors. Each cooling plate is manufactured from a rough forged or rolled ingot, wherein the cooling plate has a straight or planar inner side and the cooling ducts are blind-end bores extending in the interior of the cooling plate, wherein the cooling plate is provided at the edge thereof with side flanges, and wherein pipe connections are provided at the ends of the cooling ducts. The cooling body of the forged or rolled copper cooling plate provided with inner blind-end bores and vertical and/or horizontal side flanges on both sides has an arched outer side as well as a planar inner side.

Abstract: In the structure of a stave for cooling carbon fire-bricks laid on a hearth side wall of a blast furnace, the stave arranged between the carbon fire-bricks on the hearth side wall and a shell is made of a rolled steel plate. The stave body is formed in such a manner that a cooling water passage is formed by drilling the steel plate directly, or the steel plate on which grooves are formed is joined onto another steel plate to be used as a cover. A cooling water feed port and a cooling water discharge port are provided on the outside of the stave body, and these ports are connected to the cooling water passage.