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WO/2015/137549A1 |
The present invention relates to a scrap preheating device comprising: a case provided with a sealable internal space therein so as to accommodate a scrap before putting the scrap into an electric furnace; and a surface combustion burner...
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WO/2015/133839A1 |
The present invention provides an electric arc furnace. The electric arc furnace of the present invention comprises: a furnace body having a cylindrical container for accommodating scraps to be melted and a container cover for covering t...
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WO/2015/128714A1 |
The device for pre-heating cement raw meal for cement clinker production comprises at least one heat exchanger line for discharging cement raw meal in counterflow to hot gases drawn through the heat exchanger line and a supporting struct...
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WO/2015/122246A1 |
A preheating device (100) that, by using heat generated inside a furnace main body that melts raw material, preheats a raw material supplied to the furnace main body and comprises: a preheating shaft (11) that stores raw material and has...
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WO/2015/122086A1 |
A raw material conveyancing bucket (4) that, prior to raw material for melting in a melting furnace (3) being melted in the melting furnace (3), conveys the raw material in a suspended state using a crane, to a pre-heating device (2) tha...
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WO/2015/114563A1 |
Apparatus to heat and transfer mainly metal materials to a melting furnace (12), the apparatus comprising a transporter device (13) configured to move the materials continuously to the melting furnace (12), and at least an induction heat...
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WO/2014/207717A1 |
This invention relates to a preheating apparatus (10) which is suitable for preheating material before it enters a furnace. The apparatus defines a cavity (12) therein for receiving the material to be preheated, which cavity (12) is defi...
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WO/2014/146853A1 |
The invention relates to a fixing device (2) for a steel scrap (6) to be charged in a metallurgical melting vessel (4), having a vertical shaft (8) surrounded by a housing wall (10) for receiving the steel scrap (6), and at least one mag...
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WO/2014/071464A1 |
A two-stage molten bath-based smelting process for producing molten metal from a metalliferous feed material includes (a) preheating metalliferous feed material in a preheater and (b) injecting preheated metalliferous feed material and a...
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WO/2014/034417A1 |
Provided is a cement manufacturing device in which a raw material is evenly dispersed and fed into a conduit and preheated in a uniform manner in order to enhance heat exchanging efficiency, and which is capable of preventing clogging, e...
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WO/2014/027332A1 |
This invention is relative to a continuous charging and charge preheating system for electric arc furnace 1 and uses a particular conveyor 2 for the steel scrap, consisting in a number of long metallic slats 3, installed side by side, wh...
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WO/2014/012623A1 |
A plant (IM) and relative process for continuously feeding heated metallic material (5) to a melting furnace (1), according to which on at least one feeding line (L) defined by a conveyor (2) for continuously advancing said material (5) ...
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WO/2013/163973A1 |
The invention relates to a low-shaft arc furnace with a shaft tube, in which at least one electrode is arranged so that it can move axially, a scrap feed in which at least one electrode is arranged so that it can move axially, a scrap fe...
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WO/2013/150353A1 |
Vibration device for a conveying apparatus (21) to convey a metal charge in a longitudinal direction (X) comprising at least two vibration mechanisms (25, 26) each disposed on opposite sides of the conveying apparatus (21) so as to feed ...
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WO/2013/137305A1 |
Provided is a cement production device that increases heat exchange efficiency by causing the pre-heating of starting materials supplied to cyclones above a guide tube to be uniform, and can cause an operation having low pressure loss an...
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WO/2013/137304A1 |
Provided is a device that is for producing cement, uniformly supplies starting materials to cyclones above a guide tube, increases heat exchange efficiency by means of uniform pre-heating, and can cause an operation having low pressure l...
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WO/2013/132306A1 |
An apparatus (10) to feed and pre-heat a metal charge (11) to a melting furnace (12) of a steelworks comprises a feeding and pre-heating tower (14) separate from the melting furnace (12) provided with at least one compartment (13) to tem...
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WO/2013/110993A1 |
Method for managing the metal charge (1 1) in a melting furnace (14) comprising at least a step of depositing metal materials to be melted in a storage zone (13), a step of picking up and loading the metal materials from the storage zone...
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WO/2013/082658A1 |
A method of starting a molten-bath based melting process includes commencing supplying cold oxygen-containing gas and cold carbonaceous material into a main chamber of a smelting vessel within at most 3 hours after completing a hot metal...
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WO/2013/082659A1 |
A method of starting a smelting process in a smelting vessel includes heating frozen slag and forming molten slag and draining molten slag from a forehearth connection via a forehearth and establishing a clear flow path through the foreh...
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WO/2013/065076A1 |
A device for loading crucible furnaces comprises a container having an over¬ turned frustoconical side wall that abuts against the edge of a conical base sup¬ port with upwardly-directed vertex. The device is equipped with a vertical s...
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WO/2013/044410A1 |
A smelting tank comprises a tank body (1), a heating device (3) capable of being hermetically fitted to the tank body (1), and a tank cap (4). The tank body (1) comprises a tank body wall (10), a cavity body (11) for accommodating a bulk...
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WO/2013/023581A1 |
A preheater cyclone inner tube having a ultrastrong-type heat-resistant steel-belt comprises an inner tube body (1) connected to a cyclone fixing seat (8). The inner tube body (1) is formed by a plurality of ceramic hanging pieces (2) an...
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WO/2013/020703A1 |
A charging device (100) for feeding an arc furnace (200) with feed material has a shaft (110) having side walls (112) and a base plate (170), and an outlet opening (140) in a front wall (111) facing the arc furnace (200). Furthermore, th...
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WO/2013/007531A1 |
The invention relates to a device having a bottom, side walls and a ceiling, which together define a channel, as well as transportation means, extending in an axial direction of said channel from an entry port of the channel to an exit p...
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WO/2013/007533A1 |
The invention relates to a device having a bottom, side walls and a ceiling, which together define a channel, as well as transportation means, extending in an axial direction of said channel from an entry port of the channel to an exit p...
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WO/2012/155647A1 |
A cyclone pre-heater comprises vertically connected N-level cyclone cylinders (1,3,5,7,9),ascending pipes (2,4,6,8),a first exhausted heat pipe (12), and a first material lifter (11),and also comprises a second material lifter (20) and a...
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WO/2012/139708A1 |
The invention relates to a method for operating an electric arc furnace (1), wherein molten material (3), in particular steel, located in a hearth vessel (2) is heated by at least one arc (4), wherein a cover (5) is arranged on the heart...
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WO/2012/130220A1 |
The invention relates to a method for operating an electric arc furnace system which comprises an electric arc furnace and an exhaust system which is connected to said electric arc furnace and draws gas from the electric arc furnace by s...
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WO/2012/126387A1 |
Disclosed is a process for calcining a cement clinker with pre-heating and pre-decomposition at a high solid-to-gas ratio. During the firing of the cement clinker, the cement raw materials first exchange heat with heated flue gas in a pr...
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WO/2012/080823A1 |
Feeding system for a conventional tiltable electric arc furnace, comprising a furnace gantry extension on the side of the shell formed with the off gas opening. Such extension provides the base for an angled shaft connected in a sealed f...
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WO/2012/076921A1 |
Apparatus for continuously conveying and pre-heating a metal charge (13) inside a container (12) of a melting plant (11), comprising at least a conveyor channel (21), having walls (38, 39) to convey the metal charge (13), and at least a ...
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WO/2012/076920A1 |
Apparatus for continuously conveying and pre-heating a metal charge (13) inside a container (12) of a melting plant (11), comprising at least a channel (21) for conveying the metal charge (13), at least a hood (17) disposed above the con...
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WO/2012/076917A1 |
Apparatus for pre-heating and conveying a metal charge (13) to a container (12) of a melting plant (11), comprising at least a conveyor channel (21) along which said metal charge (13) is able to advance so as to be delivered to the conta...
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WO/2012/038320A1 |
The invention relates to a preheating apparatus (1) for steel scrap which is to be charged into a metallurgical melting vessel (8), having a vertical shaft (3), which is surrounded by a housing wall (2) and is used to receive the steel s...
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WO/2012/023029A1 |
The present invention refers to a method and to a control and tracking system of the charge of material transported by a continuous supply conveyor (2) of a metallurgical furnace (3), in particular an electric furnace for the production ...
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WO/2012/019913A1 |
The invention relates to a method for operating a charging material preheater for a smelting oven, to a charging material preheater, and to a smelting furnace system having such a charging material preheater. The charging material prehea...
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WO/2012/007105A1 |
A process for heating a metal feedstock (31) fed in continuous to a smelting furnace (30) through a second horizontal heating section (34) through which hot discharge fumes collected from said furnace (30) pass, said fumes exerting a hea...
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WO/2012/007852A1 |
A drive unit (111) for drying ovens used in the manufacturing of bricks comprising: a support structure (113), a first pair (125a, 125b) of substantially coaxial upper sprocket wheels, a second pair (127a, 127b) of substantially coaxial ...
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WO/2011/147006A1 |
The present utility model patent covers a series of arrangements for components of the liquid steel production unit known as EOF (energy optimizing furnace), these arrangements consisting of the following innovations: adoption of electro...
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WO/2011/094785A1 |
The invention relates to a device for heat-treating sheet metal blanks (11), comprising a continuous furnace (1) that can be heated by means of burners (8) and a conveying apparatus for the sheet metal blanks (11). In order to achieve a ...
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WO/2011/091685A1 |
A preheating and conveying equipment for steel scrap comprises a steel scrap conveying chute (1) inclined to the horizontal plane. The upper end of the conveying chute (1) is provided with a charging device, and the lower end extends int...
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WO/2011/090260A2 |
The present invention relates to a device for continuously manufacturing activated carbon, and more particularly, to a device for continuously manufacturing activated carbon which is capable of manufacturing high-quality activated carbon...
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WO/2011/048770A1 |
Provided are methods for separating and recovering, in a high concentration, CO2 gas generated in cement-manufacturing facilities. One of the methods comprises: feeding both an uncalcined raw material for cement and a heating medium whic...
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WO/2011/022818A1 |
Exemplary embodiments provide a movable sweat hearth for use with a metal melting furnace having a wall provided with a metal-loading entrance. The sweat hearth includes a hearth body movable relative to the furnace into and out of conta...
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WO/2011/020092A1 |
A preheat charging system for preheating scrap metal prior to delivery to a melting furnace. The system includes a preheating station having a heating chamber adapted to receive scrap metal. Hot gas from a burner chamber is circulated ar...
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WO/2011/013726A1 |
Provided is arc melting equipment used for melting an iron source with a high heat efficiency and capable of controlling the supply of the iron source supplied from a preheat chamber to a melting chamber, and also provided is a molten me...
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WO/2011/009321A1 |
A predecomposition kiln tail system used outside of a cement kiln for processing raw materials with combustible substances includes a multistage cyclone preheater (2, 3, 4, 7 and 9) and a raw material precalcination furnace (5), in which...
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WO/2010/142104A1 |
An equipment for preheating bulk metal charge and feeding it continuously to an electric furnace comprises a vibratory conveying device for putting the charge into the furnace (1), a roller-shaped tank for preheating the metal charge (2)...
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WO/2010/123187A1 |
The present invention relates to a heating device (200), comprising: a hollow main body into which an object to be heated is charged; a heating unit (203) connected to an energy source provided in the main body and which heats the object...
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