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WO/2010/015566A1 |
The invention concerns a charging installation for a shaft furnace, in particular for a blast furnace, and especially the lower sealing valve assembly thereof. The installation comprises at least two hoppers (22, 24) acting as lock hoppe...
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WO/2010/012307A1 |
The invention relates to a shaft furnace (10) and a method for heat treating carbonaceous molded parts, particularly anodes (17), having an arrangement of the molded parts in at least one molded part column (11 to 15) disposed between te...
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WO/2010/007875A1 |
Provided is an exhaust gas processing facility wherein dusts in exhaust gas from a furnace for producing molten metal are separated and collected to thereby enhance utilization of dusts, and control of internal pressure of the furnace fo...
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WO/2010/006977A1 |
An apparatus (20) for insertion and extraction of a fuel injection lance (10) into and out of a tuyere stock (1) of a shaft furnace, in particular of a blast furnace, is proposed. The tuyere stock (1) comprises a lance sheath (12) that d...
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WO/2010/000939A1 |
The invention relates to a method for manufacturing a cooling element (1) to be used in connection with a metallurgical furnace or the like. In the method, there is arranged a frame element (3) mainly made of copper and provided with wat...
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WO/2010/000940A1 |
The invention relates to a method for coating the frame element of a cooling element (1) used in connection with a metallurgical furnace or the like, said frame element being mainly made of copper, at least partly with a metal coating (3...
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WO/2009/156238A1 |
Process gas purification device (2) for a melt reduction system (1) comprising at least one reduction reactor (3) and a melting gasification reactor (4), wherein a first line system (5) for discharging a furnace gas (6) from the reductio...
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WO/2009/147192A1 |
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 s...
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WO/2009/145084A1 |
Provided is a gas cupola capable of melting a charge efficiently with the burning flames of combustion burners. The gas cupola comprises a furnace casing (1) having a melting chamber (10) and a molten metal discharge port (11) for disch...
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WO/2009/141419A1 |
The present invention proposes a method for feeding pulverised coal into a blast furnace, wherein the method comprises the following steps: providing a tuyere stock (14) for blowing hot blast air from a bustle pipe (12) into a furnace he...
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WO/2009/122065A2 |
The invention relates to a method for manufacturing a sulfoaluminous or belitic sulfoaluminous clinker from a raw mix formed from a mixture including minerals containing calcium, aluminum, silica, iron, and sulfur, preferably in sulfate ...
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WO/2009/110627A1 |
In producing high-grade steel by using copper-containing steel scraps as the iron source, the copper contained in the scraps can be efficiently removed without large facilities by subjecting the copper-containing steel scraps to carburiz...
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WO/2009/100621A1 |
Smoke gas treatment technology and device for huge cement kiln involve: high- temperature smoke gas that is discharged from charge end of cement kiln enters a preheater (1) and then exhausts after agitated with materiel, the smoke gas in...
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WO/2009/086841A2 |
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WO/2009/087183A1 |
The invention concerns cooling of the refractory lining in a smelting reduction vessel for producing hot metal. The vessel comprises an outer shell and an inner refractory lining for containing a bath of molten metal and a layer of slag ...
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WO/2009/085999A2 |
A reactor for the upgrade of heavy oil feedstock, i.e., in which a multi-phase mixture, including gas, a slurry catalyst, and volatile liquid, is to be conducted. The reactor includes a reaction chamber having a substantially unencumbere...
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WO/2009/082349A1 |
The present invention relates to a method of making cutting tools comprising a substrate having a hard phase and a binder phase, the method comprising forming green powder compacts using powder metallurgical techniques, charging the gree...
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WO/2009/077653A1 |
The invention relates to a suspension smelting furnace (1), such as a flash smelting furnace, comprising a reaction shaft (2) comprising a burner (3). The burner (3) comprises a solid matter feed arrangement (4) for feeding solid matter ...
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WO/2009/066005A1 |
A distributor device including a distribution chute (3) that extends inside the tank at an inclined angle (α) with respect to the vertical direction for distributing material in the interior of the tank (2). A rotation frame (4) is rota...
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WO/2009/062611A1 |
The present invention relates to a method and an apparatus for the production and the melting of liquid pig iron or of liquid steel intermediate products in a melt-down gasifier, with the introduction of oxygen-containing gas through oxy...
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WO/2009/059345A1 |
The invention relates to an electrically heated shaft furnace (5) comprising at least one heating element (12) which is configured by conductors. The invention is characterized in that the one or more heating elements (12) consist of car...
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WO/2009/052894A1 |
The present invention relates to a cupola or shaft furnace (1) for producing a melt, in particular for the production of mineral fibre products. To avoid low-reaction zones in the middle of the body of the furnace, it is envisaged accord...
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WO/2009/037508A1 |
A conduit for charging a blast furnace comprises a conduit comprising one or more frusto-conical sections for directing charging material into the furnace and employs a "ski jump" type feature on the chute to provide for an improved traj...
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WO/2009/034886A1 |
In this tap hole structure of a melting furnace, a refractory brick sleeve is disposed in a tap hole part formed in a furnace wall brick. The sleeve is fixed by a stamp material filled in the gap between the sleeve and the tap hole part....
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WO/2009/034837A1 |
A tuyere structure of a smelting furnace. The tuyere structure comprises: tuyere bricks having a hole formed therein; a tuyere main body which has been disposed in the hole and the periphery of which has been covered with a ring member b...
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WO/2009/031367A1 |
A vertical furnace having a gas suction port provided in its peripheral wall at furnace top part, designed to conduct operation with raw materials and fuels laid in an intra-furnace area superior to the gas suction port while closing the...
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WO/2009/031368A1 |
A vertical furnace capable of producing pig iron by charging an iron source of high metallization ratio whose average metallization ratio is 95% or higher and a solid fuel containing 70 to 100 mass% of blast furnace coke in layered form ...
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WO/2009/009817A1 |
The invention relates to a shaft furnace suitable for thermally expanding particles of a bulk material, wherein the heating is provided by one or more heat sources arranged on the peripheral surface of the furnace. The furnace interior i...
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WO/2009/003430A1 |
It is the aim to specify a shaped component (1) composed of fire-resistant material for lining a discharge aperture of a shaft furnace, wherein the service life of the tapping hole duct (2) and therefore of the entire lining of the disch...
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WO/2009/001027A1 |
The present application relates to a weld enclosure a welding apparatus (10) including such a weld enclosure and a method of welding. The apparatus (10) has first (12) and second (14) opposed tooling faces adapted to receive and hold res...
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WO/2009/000704A2 |
The invention relates to a method for operating a shaft furnace (10). According to said method, an upper region (14) of the shaft furnace (10) is charged with raw materials which sink in the shaft furnace (10) under the influence of grav...
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WO/2008/154689A1 |
A lance for injecting a solid material into a vessel, such as a direct smelting vessel for producing molten iron, is disclosed. The lance has a core tube assembly comprising a passageway for solid material. The core tube assembly has an ...
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WO/2008/154688A1 |
An apparatus for injecting solid material into a vessel, such as a direct smelting vessel. The apparatus has a central tube comprising: a core tube assembly that defines a passageway for solid material, the core tube assembly having at l...
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WO/2008/141347A1 |
The invention relates to a method for working up metal oxide-containing dusts or slag with a heated, column-shaped bed of coke from which the reaction gases are drawn off and melt is tapped at the foot. In a first part of the axial lengt...
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WO/2008/137647A1 |
A process for treating particulate material containing heavy metal generated during a manufacturing process is disclosed. The process includes providing particulate material containing heavy metal within an enclosed area and mixing an ad...
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WO/2008/099024A1 |
A multiple hearth furnace comprises a rabble arm (26) with a tubular structure (120, 124, 186) and a solid plug body (110). The latter is received in a socket (100) arranged in an arm fixing node (28). It has an axial through boring (132...
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WO/2008/098842A1 |
A multiple hearth furnace comprises a gas cooling system for its central shaft (20) and its rabble arms (26). This gas cooling system includes within the shaft (20) an annular main distribution channel (54, 54') for supplying a cooling g...
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WO/2008/074596A1 |
A rotary charging device (10) for a shaft furnace commonly comprises a rotary distribution means (12) for distributing charge material on a charging surface in the shaft furnace. A rotatable structure supports (16) the rotary distributio...
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WO/2008/046656A1 |
Solids distributor for injection plants, in particular for blast furnaces, comprising a chamber and a plurality of lance lines (90) which lead off, wherein the chamber has a supply connection (77) for a ground solid which is to be distri...
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WO/2008/037836A1 |
The invention relates to a method for coating a cooling element (1) mainly made of copper, provided with water cooling pipes (2) and used particularly in connection with metallurgic furnaces or the like, wherein the cooling element inclu...
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WO/2008/022941A1 |
The invention relates to an annular shaft kiln for calcining granular material (G), in particular for calcining limestone or dolomite, comprising an upper shaft (20, 20') for preheating the granular material (G) and a main shaft (10, 10'...
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WO/2008/011695A1 |
which is operable with two workers only, purposed to reduce the time spent on the blast furnace tuyère cooling box replacement and to increase the work security and hygiene of these operations, characterized by being basically constitut...
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WO/2008/011694A1 |
The concerned subject-matter discloses a set of disassembling, portable devices which can be operated under low operating expense and high security standards, used for the removal of the tuyeres and the cooling boxes of a blast furnace b...
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WO/2008/011696A1 |
During the blast furnaces maintenance, the tuyeres replacement constitutes the most delayed, the most uncomfortable and the work security and hygiene riskiest task. This is due to the high temperature in the area, to the reduced dimensio...
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WO/2007/147696A1 |
A charging device (10; 10'; 10'') for a shaft furnace comprises a distribution chute (20; 20'; 20''; 20'''), which is supported rotatable about an essentially vertical axis of rotation (A), and a variable-speed drive (26) connected to th...
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WO/2007/133115A1 |
The inventive complex for brick drying and calcining comprises vertical calcining and drier channels and the vertical shaft of a unit for storing empty batteries. The battery is used for transporting bricks during drying and for placing ...
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WO/2007/118752A1 |
A method of manufacturing a stave cooler (10; 10'; 10'') for a metallurgical furnace is disclosed. The method comprises supplying a metal plate (12; 12'; 12'') having an inward side (16) for facing the inside of the furnace and an opposi...
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WO/2007/112496A1 |
A system and method for the calcination of minerals. The system comprises a vertically disposed reactor segment configured to impart horizontal forces on particles passing through the reactor segment in a vertical direction; an injector ...
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WO/2007/082630A1 |
A multiple hopper charging installation (10, 10') for a shaft furnace comprises a rotary distribution device (14) for distributing bulk material in the shaft furnace (12) by rotating a distribution member about a central axis (A) of the ...
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WO/2007/082605A1 |
A charging device for a shaft furnace, which comprises at least one charging hopper having a discharge orifice arranged in a position off-centre with respect to the central axis of the shaft furnace, and a material distribution device ar...
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