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WO/2003/102248A2 |
A tuyere cooling system which includes a coolant circuit for a body section and nose section. A valve is operable to connect the coolant circuits in series or to disconnect flows to the nose section of the tuyere so that if the nose of t...
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WO/2003/102249A1 |
A furnace sidewall structure of a rotary hearth furnace for making direct reduced iron which is agglomerated iron ore or waste iron oxide containing a reducing agent on a rotary hearth by heating or for heating at least one steel piece, ...
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WO/2003/089862A1 |
The invention relates to electric-arc plasma reactors for producing the melt of refractory, metallic and non-metallic materials and sublimates which have a high viscosity degree and can be used for the cement and chemical industries and ...
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WO/2003/076356A1 |
The invention relates to a dryer/kiln for gypsum (1), comprising a drying volume (2), a first duct (4), with an inlet connected to a source of hot gas (3) and an outlet opening into the drying volume (2), a second duct (5), with an inlet...
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WO/2003/074956A1 |
A method and plant for manufacturing cement clinker are disclosed, in which cement raw meal is calcined in a calciner (3, 23). The calciner (3, 23) comprises an upper zone (3a, 23a) and a lower zone (3b, 23b), where fuel, combustion gas ...
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WO/2003/071555A1 |
The invention relates to metallurgy, in particular to the structural design of blast furnace heaters. The inventive device comprises a casing (1) provided with a lining (2), a nozzle (3), a dome (5) with a pre-chamber (6) arranged in the...
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WO/2003/068995A1 |
The invention relates to a method and device for the continuous production of steel using metal charge material (8) that is preheated in an upper part of a melting vessel (2), is then melted in a lower part (9) of the melting vessel l(2)...
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WO/2003/060168A2 |
A cooling plate (10) for a metallurgical furnace comprises a cast cooling plate body (12) made of a ferrous metal and at least one steel cooling pipe (20) cast in the cooling plate body (12). A metallic jacket (26) having a thickness in ...
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WO/2003/042417A1 |
A system wherein oxygen is provided to a shaft furnace in addition to the blast air, and a flame shroud (23) is formed around the oxygen stream (20) enabling deep penetration of the oxygen into the furnace for not only combusting carbona...
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WO/2003/033979A1 |
The invention relates to a cooling plate (1) comprising a reinforcement element for ovens provided with a refractory lining. Said cooling plate is provided with cooling agent channels (3) which are arranged inside the plate, and at least...
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WO/2003/027012A1 |
The invention relates to electric calcining furnace for calcining of solid particulate materials, particularly carbon materials. The furnace comprises a substantially cylinder-shaped, vertical furnace (1) having means (6) for supply of m...
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WO/2003/008888A1 |
The invention relates to a shaft pre-heater comprising several shafts for accommodating lumpy material, a device for filling the individual shafts with the lumpy material to be pre-heated, and means for delimiting the height of the layer...
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WO/2003/006389A1 |
Method of preparing a fiberizable melt of a mineral material using a shaft furnace having tuyeres (4,5) with tips (6) which are adjustable relative to the center line of the shaft furnace and placing said tips at a distance of between 10...
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WO/2003/002770A1 |
The invention relates to a loading device for a shaft furnace comprising a chute which is supported by a suspension rotor (28) in a fixed casing. The rotor (28) supports a cooling circuit which is supplied with a cooling liquid by means ...
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WO/2003/002768A1 |
The present invention refers to an equipment for feeding and distributing charge and fuel in furnaces of rectangular cross section, comprising movable feeding tubes to distribute along the longitudinal section and the cross section of th...
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WO/2003/002925A1 |
A multiple hearth furnace comprises at least one cleaning lance inlet port (52, 54) radially leading into one of its hearth chambers (24). A cleaning lance assembly (40', 40'') includes an elongated mount (42) and at least one cleaning l...
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WO/2003/002769A1 |
A fabricated cooling panel (1) for a furnace or a cupola comprises a metal, preferably steel, backing plate (2) to which is secured a metal, preferably copper, cooling pipe (3). The pipe (3) has at least one outwardly extending fin (4) t...
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WO/2002/103067A2 |
In order to melt down aluminium in an oven, a method is known whereby a starting material containing aluminium is supplied to an oven, is pre-heated in an upper region of the oven by means of oven flue gas, and is then heated by means of...
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WO/2002/101309A1 |
The continuous thermal extraction melting unit is composed by a charging hopper (1) that is equipped of system of hydraulic closing (2). The native mineral, through the duct (3), reaches the cochlea of feeding (4) so to be fed in the dis...
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WO/2002/101310A1 |
A sleeve for slag outlet of a waste gasifying melting furnace, comprising an inner tube part formed with a refractory hard to be molten down by molten slag and an outer tube part formed with a refractory installed on the outer surface of...
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WO/2002/097347A1 |
The invention relates to a method for the thermal treatment of raw materials in which an furnace (2) is charged with the raw material and at least two gas phases introduced into the furnace in which the raw material is subjected to the t...
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WO/2002/088399A1 |
The invention relates to a cooling element (1, 101) for cooling the walls of shaft furnaces. Said element comprises a hot side (Hs) which is directed towards the interior of the furnace, a cold side (Ks) which faces towards the shaft fur...
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WO/2002/088398A1 |
The invention relates to a cooling plate (1, 101, 201) for shaft furnaces, which are provided with a fire-resistant lining, comprising at least one coolant channel (2, 102, 202) and pipe sections (16, 17) for coolant entry or discharge, ...
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WO/2002/086407A1 |
A rabble arm for a furnace, as e.g. a multiple hearth furnace, comprises an elongated metallic support core (10), at least one rabble tooth having a rabble portion and a fixing portion and fixing means co-operating with the fixing portio...
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WO/2002/086406A1 |
A method of operating multiple hearth furnace (10) with a plurality of vertically aligned hearth floors (361, 362, 363, 364, 365), comprises in particular following steps. A first material is fed onto the uppermost hearth floor and moved...
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WO/2002/084192A1 |
The invention relates to a cooling element for cooling a metallurgical furnace, in which the side of the furnace shell (113, 213, 313) that faces the interior of the furnace (O¿i?) is lined with fireproof material (114, 214, 314). Said ...
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WO/2002/081757A1 |
A cooling plate (10) for a metallurgical furnace, such as e.g. a blast furnace, comprises a cast cooling plate body (12) made of a ferrous metal and at least one cooling pipe (18) cast in the cooling plate body (12). The cooling pipe (18...
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WO/2002/079113A1 |
A method and apparatus for heat treatment of expansible materials to form lightweight aggregate is disclosed. The material is heated within a kiln to a temperature less than that required for optimum expansion. Then the material is furth...
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WO/2002/077296A1 |
The invention relates to a cooling plate (1, 101) for a shaft furnace provided with a refractory lining. Said shaft furnace comprises a first laminated cooling plate element (2, 102) which is oriented towards the inside of the furnace (O...
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WO/2002/075009A1 |
The present invention refers to a method and an equipment for curing and drying self-reducing agglomerates containing cement as a binder in the presence of saturated vapor at a temperature from about 70 to about 110°C and under atmosphe...
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WO/2002/070412A1 |
A waste processing apparatus for processing a column of waste in a processing chamber having one or more gas outlets at an upper part thereof and one or more plasma torches an output end thereof extending into a lower part of the chamber...
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WO/2002/055746A1 |
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 s...
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WO/2002/048406A1 |
The invention relates to a cooling system for a metallurgical smelting furnace, containing a cooling element (16¿i?; i=1, 2, 3, 4) which is integrated into a wall in the metallurgical smelting furnace and which contains at least one int...
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WO/2002/046478A2 |
The invention relates to a cooling device for shaft furnaces, such as blast furnaces or similar, consisting of a highly heat conductive material, preferably copper or copper alloys, and comprising a cooling element (1) which has coolant ...
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WO/2002/042702A1 |
A cylindrical furnace, comprising vertically separable multi-stages of insulating furnace walls and heating elements each installed on the inner surface of the insulating furnace wall at each stage, wherein a step is provided at the conn...
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WO/2002/039044A2 |
Melting furnace for leagues of metal of second melting especially conformed with a special type of channel of connection, with a rotating joint (7) among the cupola(1) and the basin of wait of spherical form (8) and able to ruotate, such...
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WO/2002/037044A1 |
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 wat...
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WO/2002/033338A2 |
The invention relates to the production of calcined materials such as lime, dolomite, magnesite or similar in an annular shaft furnace, wherein the annular shaft (2) of said furnace extends in a substantially vertical manner forming a tr...
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WO/2002/031211A1 |
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 l...
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WO/2002/029321A1 |
One or more auxiliary plasma torches (20) are provided to a waste processing plant at strategic locations within the chamber (10) and directed towards the waste column. When a bridge (A) forms within the chamber the auxiliary plasma torc...
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WO/2002/029322A2 |
A plurality of fluxing agent inlets (320) are provided at the lower part of a waste processing chamber (10) to enable the direct application of fluxing agents to deposited 'unprocessed solids' and/or to liquid products of high viscosity ...
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WO/2002/027041A2 |
The invention relates to a device and method for distributing a lumpy bulk material, in particular, at least partially prereduced iron ore, on an expansive surface, especially on a static bed. Said surface extends inside a reactor or ves...
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WO/2002/027043A1 |
The invention relates to a device and method for producing a static bed inside an aggregate used in metallurgical technology, preferably for producing pig iron or steel intermediate products from charging stocks that contain iron, in par...
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WO/2002/024962A1 |
The invention concerns a device for distributing bilk material comprising: a tilting chute (32) suspended to a suspension rotor (18) driven in rotation by a motor (60); a tilt controlling rotor (28) and a tilting mechanism (36, 36'), whi...
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WO/2001/079565A1 |
The invention concerns a device for manoeuvring elements of a blast furnace casting launder (14), in particular an upstream launder. Said device comprises a support structure (20) arranged beside the casting launder (14). A main bearing ...
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WO/2001/074738A1 |
A method for preparing a carbonaceous refractory, characterized in that it comprises providing a mixture comprising 50 to 85 % of a carbonaceous raw material as a main material comprising roasted an anthracite, a calcined coke, a natural...
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WO/2001/063192A1 |
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 ...
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WO/2001/040524A1 |
The invention relates to a metallurgy, in particular to a device for loading a blend into a shaft furnace, mainly a blast furnace. The device comprises the following equipment arranged along the vertical axis of the blast furnace: a feed...
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WO/2001/038588A1 |
The invention concerns a cupola for producing melt iron, comprising a vessel (2) for heating the materials to be smelted by burning combustion products inside the vessel (2), means (21) for loading the vessel with materials to be smelted...
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WO/2001/036891A2 |
A method known per se, for operation of a smelting oven comprises charging a smelting zone with feedstuffs, fuel, a first oxidising agent and a second oxidising agent, whereby at least the second oxidising agent is injected into the smel...
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