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Patent Searching and Data


Matches 251 - 300 out of 6,362

Document Document Title
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...  
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...  
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...  
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....  
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...  
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...  
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 ...  
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...  
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...  
WO/2009/000704A3
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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'...  
WO/2008/019003A3
This invention relates to a method to further enhance NOx reduction in rotary preheater mineral kilns by coupling the temperature control and gas composition uniformity afforded by the high temperature mixing with the use of chemical red...  
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...  
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...  
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...  
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...  
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 ...  
WO/2007/122509A3
A direct reduction process for producing direct reduced iron (DRI) in a reduction reactor having a reduction zone for reducing iron-oxides-containing particles, such as iron ore pellets, to DRI by reaction of said iron oxides with a high...  
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...  
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 ...  
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 ...  
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...  
WO/2007/082633A1
A three hopper charging installation (10') for a shaft furnace is disclosed. It comprises a rotary distribution device (14) for distributing bulk material in the furnace by rotating a distribution member about the furnace central axis (A...  
WO/2007/071469A1
A rotary charging device for a shaft furnace, in particular a blast furnace, is disclosed. The charging device is equipped with a cooling system. The rotary charging device comprises a rotatable support for rotary distribution means as w...  
WO/2007/054308A3
Disclosed is a method for operating a shaft furnace, in which a top zone of the shaft furnace is charged with raw materials which sinks inside the furnace under the effect of gravity. A portion of the raw materials is melted and/or reduc...  
WO/2007/054308A2
Disclosed is a method for operating a shaft furnace, in which a top zone of the shaft furnace is charged with raw materials which sinks inside the furnace under the effect of gravity. A portion of the raw materials is melted and/or reduc...  
WO/2007/053016A3
The invention relates to a furnace (2), comprising : - a furnace pipe (8), - a positioning device (16) for positioning substrates (10) in the furnace pipe (8), - at least one heating element (60) for heating the furnace (2), - a gas inje...  
WO/2007/053016A2
The invention relates to a furnace (2), comprising : - a furnace pipe (8), - a positioning device (16) for positioning substrates (10) in the furnace pipe (8), - at least one heating element (60) for heating the furnace (2), - a gas inje...  
WO/2007/048490A2
The invention relates to a method and a device for charging feedstock, particularly coke or ore, and optionally separated fine moieties of feedstock, to process the same in a metallurgical vessel in order to produce metal or initial meta...  
WO/2007/048490A3
The invention relates to a method and a device for charging feedstock, particularly coke or ore, and optionally separated fine moieties of feedstock, to process the same in a metallurgical vessel in order to produce metal or initial meta...  
WO/2007/039339A1
The present invention proposes a charging device (10) for charging a shaft furnace, comprising a rotary distributor (12) and a variable drive (14) for rotating the rotary distributor (12) about an essentially vertical axis of rotation (A...  
WO/2006/134165A3
A charging device for a shaft furnace comprises a distribution chute for bulk material and a drive mechanism for the distribution chute. The distribution chute has a trough-shaped main part with an open impact section and an outlet secti...  
WO/2006/134165A2
A charging device for a shaft furnace comprises a distribution chute for bulk material and a drive mechanism for the distribution chute. The distribution chute has a trough-shaped main part with an open impact section and an outlet secti...  
WO/2006/135042A1
A firing furnace in which the risk of contaminating a material to be fired is extremely low even if it is not placed in a firing container, or the like, and a firing furnace by which uniform firing can be ensured with a simple structure ...  
WO/2006/118485A1
The invention relates to the iron industry and can be used for measuring a stock level and shape in shaft furnaces, in particular in a blast furnace. The inventive device for measuring the stock level and shape in a shaft furnace compris...  
WO/2006/117336A1
The invention relates to a method for the smelting of a ferrous load. More specifically, the invention relates to an organic load which may or may not be inherent to the ferrous load and which is subjected to combustion using a burner ox...  
WO/2006/111574A1
A vertical reduction furnace for the production of metallic iron by means of the direct reduction of iron ore (DRI), comprising an iron ore feed zone, an iron ore reduction zone, a metallic iron discharge zone (3), accumulation means (6)...  
WO/2006/106547A1
A selective dispensing device (1) is disclosed for limestone in vats (5a, 5b) of a regenerating oven adapted to arrange limestone with greater sizes next to an external wall (7a, 7b) of the vats (5a, 5b) and limestone with smaller sizes ...  
WO/2006/103709A1
A fuel delivering terminal (1) is disclosed adapted to be connected to a delivery end of a combustion lance (3) of lime regenerating ovens, wherein D is the external diameter of the terminal (1) and is greater that the internal diameter ...  

Matches 251 - 300 out of 6,362