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Matches 1 - 50 out of 29,762

Document Document Title
WO/2018/012287A1
Provided are a rotary hearth furnace (1) in which it is possible to adjust the position of the point at which exhaust gas diverges so as to be near the border between a heating section and a non-heating section while limiting the volume ...  
WO/2018/012003A1
Provided are a reduced iron production device (1) and a reduced iron production method with which it is possible to prevent a reduction reaction of an iron oxide by a reducing gas from being suppressed by a carburizing gas when the reduc...  
WO/2018/008339A1
The key feature of this method for refining low-rank coal is the feature of subjecting low-rank coal to a chemical reduction treatment. The key feature of this method for producing coke is the feature of producing refined coal using the ...  
WO/2018/004070A1
An apparatus for manufacturing molten iron and a method for manufacturing molten iron by using the same are provided. According to one embodiment of the present invention, the apparatus for manufacturing molten iron comprises: a melt gas...  
WO/2018/000858A1
A roller treatment process and a treatment device suitable for a total-amount steel slag treatment. The treatment process is: firstly, a slag tank (2) with the molten slag is tightly held by a slag tank tilting mechanism and moved to a s...  
WO/2018/000973A1
Provided are a metallurgical electric furnace and a smelting method used for said metallurgical electric furnace; the metallurgical electric furnace comprises a furnace body, an oxidation lance, and a coal lance, and the furnace body has...  
WO/2017/223562A1
A pneumatic drilling device comprising: an impact manifold or cylinder in fluid communication with a rotary air manifold or gear box; and a single air inlet. The single air inlet may be in fluid communication with the impact manifold or ...  
WO/2017/221118A1
Disclosed herein is internally refractory and insulation lined furnace with a reinforcement anchor assembly attached to the outer surface of the shell of the furnace. Also disclosed herein is a method of repairing a furnace refractory li...  
WO/2017/211956A1
The application relates to a method for the direct reduction of feedstock, containing metal-oxide to form metallic material, by contact with hot reduction gas in a reduction assembly (1), the product of the direct reduction process being...  
WO/2017/211939A1
The application relates to a method for the direct reduction of feedstock, containing metal-oxide, to form metallic material, by contact with hot reduction gas in a reduction assembly (1), the product of the direct reduction process bein...  
WO/2017/207472A1
A method for the production of cast iron starting from pre-reduced iron ore DRI by means of an electric arc furnace EAF, comprising the following steps: a. preparing a charge of pre-reduced iron ore DRI having a metallization higher than...  
WO/2017/202119A1
A reduction smelting system (10) and reduction smelting method for vanadium-titanium magnetite ore or ilmenite. The reduction smelting system (10) for vanadium-titanium magnetite ore or ilmenite comprises: a rotary kiln (101) used for pr...  
WO/2017/199868A1
Provided is a reduced iron production method which can provide good heat input to reduced iron starting materials on a hearth 18 in a reduction-melting furnace 10 and which can improve the efficiency of treatment thereof. The reduced iro...  
WO/2017/194708A1
Process and furnace plant for production of liquid metal. The furnace comprises an apparatus (1) for treatment of furnace gas. The apparatus comprises a wet scrubber, preferably a venturi scrubber (6), such as an air gap scrubber, with a...  
WO/2017/190185A1
A smelting vessel includes a plurality of heat pipes (21) positioned in a refractory lining of at least a part of the hearth (9) for cooling at least a part of the refractory lining. At least one of the heat pipes includes (a) a liquid p...  
WO/2017/185178A1
The present invention discloses a system and method for using a pressurized oxy-fired configuration to conduct metal reduction. The invention discloses a process for production of metal from metal oxide ore through reduction, comprising:...  
WO/2017/186782A1
The invention relates to a method for producing liquid pig iron (1), wherein the method comprises reducing iron-oxide-containing feed materials (2) to form a partially reduced first iron product (3) in a first reduction system (4), intro...  
WO/2017/187973A1
[Problem] To provide: a method for processing iron and steel dust, which is more advantageous than a Waelz method in terms of energy and economy; a method for producing zinc; and a method for producing a staring material for iron and ste...  
WO/2017/185858A1
A serial flash furnace, comprising an upper reaction body (5) and a lower reaction body (1), and a connecting channel (7) connecting the upper reaction body (5) and the lower reaction body (1). The upper reaction body (5) is located abov...  
WO/2017/186482A1
The invention relates to a method for producing syngas with a variable H2/CO ratio, comprising the following steps: splitting a hydrocarbon fluid, in particular a first gas with the composition CnHm to form carbon and hydrogen in a react...  
WO/2017/187824A1
A checker brick bracket (10) with a metal grille (20) for receiving the checker bricks of a hot blast stove (2) and existing posts (40) disposed between the metal grille (20) and the furnace bottom surface (21), wherein: the bracket comp...  
WO/2017/188344A1
The present invention addresses the problem, in methods for producing a metal or alloy by reducing a mixture that contains an oxide ore, of providing an oxide ore smelting method with good productivity and efficiency. The present inventi...  
WO/2017/174105A1
The invention relates to a nozzle for spraying an inorganic compound, having the following features: a flow channel (10) which extends from a first end (12) with a substantially circular cross-section to a second end (14) with a substant...  
WO/2017/170100A1
Provided is a method for operating a blast furnace with which it is possible to reduce the reduction agent ratio of the blast furnace. In this method for operating a blast furnace, pulverized coal is blown from a blast furnace tuyere. Th...  
WO/2017/169486A1
The problem addressed by the present invention is to improve efficiency when smelting or operating the melting and smelting furnace for a cold iron source using an oxygen burner lance. Provided is a melting and smelting furnace comprisin...  
WO/2017/164358A1
The present invention is formed by having an angle variable reflection plate installed at an opening section at one end thereof and an antenna installed at the other end thereof, and is provided with: a guide part inserted into a furnace...  
WO/2017/157092A1
A method for producing ferronickel by means of a high efficiency step forking type rotary reduction furnace in a direct reduction manner, comprising the steps of: sieving laterite nickel ore raw material, adding pulverized coal and an ad...  
WO/2017/159641A1
In a blast furnace operation that is performed by forming coke-mixed ore layers and coke layers in a blast furnace, the present invention ensures air permeability in the blast furnace, by appropriately controlling the amount of coke mixe...  
WO/2017/157908A1
In order to provide a solution which provides a direct reduced iron product which has an improved performance in respect to its capability to be transported over long distances and in respect to its melting properties in primary metallur...  
WO/2017/152784A1
A system and a method for the dry centrifugal granulation of high temperature liquid slag and exhaust heat recovery. The system comprises a liquid slag drainage system, a liquid slag buffering system, a liquid slag granulation and heat e...  
WO/2017/152781A1
Provided is a slag buffer system having a flow control function, comprising a slag ladle shell (17), a stopper rod, a stopper-rod control mechanism (13), and a slag drop tube (10); the upper part of the slag ladle shell (17) is provided ...  
WO/2017/154221A1
A method for manufacturing sintered pellets, which are reduced to become reduced iron by being fed into a reducing furnace Y1, is provided with: a mixing and granulating step for generating pellet grains by mixing iron oxide- and aluminu...  
WO/2017/152782A1
A high-temperature liquid slag granulation and exhaust heat recovery device, comprising a slag pipe (1), a granulation bin (6) and a granulation apparatus (2); the granulation bin has the shape of an upside-down box, with an opening at t...  
WO/2017/152783A1
A liquid molten slag granulating system, comprising a granulator (1), a granulator connecting member and a granulator driving part. The granulator (1) is disc-shaped or cup-shaped, and a diversion cone is arranged at the center of the gr...  
WO/2017/154840A1
Provided are a method for producing sintered pellets with which it is possible to decrease the occurrence of powder to the extent that excellent operation of a reduction furnace can be maintained, a method for producing reduced iron, and...  
WO/2017/134829A1
The present invention provides a novel method that is for supplying a reducing gas to the shaft part of a blast furnace, and with which a large amount of the reducing gas containing hydrogen at a high concentration can be supplied to a d...  
WO/2017/133837A1
Described are a method and a system for producing porous iron by means of a direct reduction process. In said method and system, a reducing gas is introduced into a DRI reduction device, and the direct reduction process is carried out th...  
WO/2017/121694A1
The present invention relates to a method of utilizing a steelworks slag (1). The method comprises introducing liquid steelworks slag (1) into a reaction vessel (2), moving an introduction device into the steelworks slag (1) present in t...  
WO/2017/115276A1
The invention relates to a drill bit (100) able to improve performance of drilling machine. The drill bit (100) of the invention comprises a drill bit body (101) with a rear end (102) adapted to be connected to a drilling machine, and a ...  
WO/2017/115219A1
Systems and methods are disclosed that involve, in the operation of an electric arc furnace (EAF), disposing a composition into a container for smelting in the electric arc furnace. The composition may include EAF fines and carbonaceous ...  
WO/2017/115097A1
The invention relates to a drill bit (100) able to improve performance of drilling machine. 14. The drill bit (100) of the invention comprises a drill bit body (101) with a rear end (102) adapted to be connected to a drilling machine, an...  
WO/2017/115133A1
A process for producing high-carbon DRI utilizing a syngas comprising hydrogen, carbon monoxide, carbon dioxide and a low content of methane, derived from the gasification of hydrocarbons, such as coal, in a reduction reactor comprising ...  
WO/2017/116275A1
The invention relates to the pig iron production in the Romelt furnace. Simultaneous loading of iron containing materials, fluxes and >5 mm sized coal fractions into the liquid slag bath of the Romelt furnace through the top loading port...  
WO/2017/114933A1
A method of constructing a shaft furnace is provided, as well as an assembly and a fixation structure therefor. The method comprises the steps of providing on a first position a furnace segment comprising a ring wall extending along a ce...  
WO/2017/107662A1
A continuous metallurgical device and method. The continuous metallurgical device comprises a plurality of sequentially-connected metallurgical chambers (Tx). Every two adjacent metallurgical chambers (Tx) are separated by a vertically-d...  
WO/2017/111503A1
The present invention provides a method for collecting carbon dioxide and recovering hydrogen from steelmaking byproduct gas. A method and apparatus for collecting carbon dioxide and recovering hydrogen from steelmaking byproduct gas acc...  
WO/2017/111490A1
The objective of the present invention is to provide: a molten iron manufacturing device of a Finex process for supplying heat to a fluidized bed within a fluidized reduction furnace without loss of reduction gas; and a molten iron manuf...  
WO/2017/111214A1
Disclosed is a cyclone comprising: a main body part collecting dust from gas introduced thereinto and guiding the collected dust downwards; a first grid part having a planar shape and located in the lower portion of the main body part, t...  
WO/2017/109937A1
A fuel supply device 10 is provided with: a cylindrical member 30 that is mountable to a mounting portion provided on a blast pipe 4 of a blast furnace 1; a hollow-shaped rotating member 40 that is rotatably housed in an inner portion of...  
WO/2017/108998A1
A stockhouse arrangement for a metallurgical furnace comprises a set of storage bins (12) for granular material; a material feeding device (14) associated with said set of storage bins (12), the material feeding device (14) being arrange...  

Matches 1 - 50 out of 29,762