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JP5125819B2 |
To provide a vertical melting furnace capable of promoting the combustion and heat generation of a carbon material and producing molten metal with high productivity. In this vertical melting furnace in which an iron source and the carbon...
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JP2012247183A |
To provide an efficient method of relining a vessel for direct smelting.The method includes a process (a) of cooling a vessel after stopping the direct smelting work, a process (b) of executing the advancement into the vessel via an inle...
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JP2012237535A |
To efficiently remove foreign matter such as a metal piece, a metal wire, coarse grain dust, or a plastic piece from exhaust gas of a vertical type melting surface.The foreign matter removing device for exhaust gas of the vertical type m...
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JP5082678B2 |
To efficiently produce molten iron at high productivity by using coke for iron-making when producing the molten iron by melting iron-based scraps in a vertical scrap melting furnace. Refractory brick lumps are charged together with the i...
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JP5079968B2 |
Apparatus and process for producing a fixed bed in a metallurgical unit, preferably for producing pig iron or primary steel products from iron-containing charge materials, in particular in a melted gasifier, in which a lumpy bulk materia...
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JP5065653B2 |
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JP5066690B2 |
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JP5059381B2 |
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JP5052416B2 |
It is an object to provide a gas cupola for melting a charging material efficiently by a combustion flame of a combustion burner. The gas cupola includes a furnace body having a melting chamber 10 and a molten metal discharge port 11 for...
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JP2012193405A |
To reduce the time required for re-startup from the start of a re-startup to general operation in a method for operating a melting reduction furnace which includes: blowing, in order to melt and reduce a powdery metal oxide-containing ra...
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JP5037900B2 |
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JP5019327B2 |
To provide an exhaust gas treating facility capable of stably, quickly and accurately treating exhaust gas discharged from a metal melting furnace with flow rate and temperature fluctuating widely, and containing dioxin and highly flamma...
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JP5019551B2 |
To reduce dioxins in exhaust gas from a metal melting furnace employing wire chips including a chlorine based resin coating material as a material in the metal melting furnace. Inner temperature of a melting furnace is set at 850 deg.C o...
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JP2012158788A |
To sufficiently reduce wear damage in a stave cooler having a leakage part produced by melting.A repair structure for a stave cooler includes: a first stave cooler 1; a second stave cooler 12 disposed above the first stave cooler 1; and ...
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JP5006945B2 |
A multiple hearth furnace includes a gas cooling system for its central shaft and its rabble arms. This gas cooling system includes within the shaft an annular main distribution channel for supplying a cooling gas to the rabble arms and ...
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JP4992549B2 |
To stably perform the operation without developing such problems as to increase the blasting pressure and drop the molten iron tapping temperature and slag temperature, when the molten iron is produced by using dust-agglomerate as a part...
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JP4989974B2 |
Cooling panels (31) are attached to the shell (11) of a metallurgical vessel to form an internal lining of the shell. Each panel (31) comprises a coolant flow tube (36) bent to form inner and outer panel sections (37, 38) of zig-zag form...
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JP4972944B2 |
To provide a disposal method and device for combustible waste capable of continuously carrying out safe operation without any trouble in operation, and preventing accumulation of combustion residues in the bottom of a combustion space, w...
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JP4937221B2 |
A supporting table having heaters inside a crystal-growing furnace includes a table plate and a plurality of supporting posts, wherein the supporting posts support the table plate and are, respectively, electrically connected with the he...
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JP4939395B2 |
Method of constructing and installing a direct smelting unit comprising a smelting vessel (11). The vessel is prefabricated off site in three modules (11A, 11B, 11C) which are then transported to the installation site where they are hois...
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JP2012087956A |
To provide a burning furnace that secures uniformity of gas circulation by preventing drift of combustion gas which may be generated in a vertical burning furnace to give homogeneous products without burning unevenness, while having high...
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JP2012509454A |
A furnace for conducting a high temperature process under oxidising conditions comprises an outer shell made from a metal, one or more cooling channels formed on or joined to the outer shell and a furnace lining. The furnace lining compr...
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JP4893290B2 |
To producing molten iron with high productivity and at a low cost, in a method for producing molten iron, for which iron-based scrap is used as raw material and a vertical-type scrap melting furnace is used. In the method where the iron-...
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JP4893291B2 |
To provide a method for inexpensively producing molten pig iron with high productivity, while using a vertical scrap-melting furnace and using ferrous scrap as a raw material. This production method is directed at melting the ferrous scr...
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JP4880826B2 |
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JP4883833B2 |
A vessel which produces metal from a feed material by direct smelting is disclosed. The vessel contains a molten bath having a metal layer (15) and a slag layer (16) on the metal layer and a gas continuous space (31) above the slag layer...
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JP4877862B1 |
To cool a powder heated in a heating part in a cooling part and slide a take-out plate provided in the take-out part to take out a predetermined amount of powder in order. The powder was also efficiently cooled in the part. Powder W heat...
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JP4860003B2 |
To provide a vertical shaft furnace that allows a simplified facility and uncomplicated operational conditions, a vertical shaft furnace 1 according to the invention is a vertical shaft furnace that subjects a burden material fed from a ...
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JP4851895B2 |
To positively carry out stable operation when carrying out melting treatment of shredder dust in a shaft type gasification melting furnace by preventing retention of tar contents and preventing dropping of atmospheric temperature in a fu...
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JP2012002386A |
To efficiently and inexpensively recover a valuable metal or the like contained in combustible waste in a high-quality state by stably burning the waste at a low temperature of 700°C or less.The heating furnace includes: a heat treatmen...
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JP3172563U |
To provide an in-blast furnace monitoring device capable of monitoring the inside of a blast furnace through the entire tuyere of a blast furnace even when the tuyere peep pipe is greatly tilted with respect to a blow pipe. An observatio...
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JP2011530010A |
The invention relates to a method for interrupting and restoring the melt stream of iron and metal melts in melt channels, in particular tap hole channels, of blast furnaces and drainage channels of melt furnaces. The method is character...
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JP2011530011A |
The invention relates to a tapping channel (1) for draining iron and metal melts and liquid slags from metallurgical containers such as blast furnaces (2) and melt furnaces. The tapping channel (1) is formed by an outer pipe (3) and an i...
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JP4829777B2 |
A direct smelting plant for producing molten metal from a metalliferous feed material is disclosed. The plant includes a fixed smelting vessel to hold a molten bath of metal and slag and a gas space above the bath. The plant also include...
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JP4829778B2 |
A solids feed means for a direct smelting plant is disclosed. The solids feed means includes 2 or more pairs of lances for injecting solid feed materials for a direct smelting process into a direct smelting vessel. The solids feed means ...
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JP4827148B2 |
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JP4817569B2 |
To use an organic sludge as a recycled resource having a product value by rendering a molten slag nontoxic and homogeneous, reclaiming metals contained therein, and reducing processing costs through the recovery of heat during the proces...
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JP2011528064A |
A process for energy- and emission-optimized iron production and an installation for carrying out the process. A first partial amount of a generator gas produced in a melter gasifier is used as a first reducing gas in a first reduction z...
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JP4787244B2 |
A molten metal converter or arc furnace has a tapping pipe that discharges to e.g. a steel extrusion assembly. The discharge passage geometry conforms to the mathematical formula: A(y) = A ( ( (h1 + hk) / (h1 + hk) -y] where A is the cro...
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JP4782975B2 |
One or more auxiliary plasma torches are provided to a waste processing plant at strategic locations within the chamber and directed towards the waste column. When a bridge forms within the chamber the auxiliary plasma torches may be ope...
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JP4782974B2 |
One or more auxiliary plasma torches are provided to a waste processing plant at strategic locations within the chamber and directed towards the waste column. When a bridge forms within the chamber the auxiliary plasma torches may be ope...
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JP2011183296A |
To provide an asbestos melting apparatus detoxifying asbestos by highly efficiently and uniformly heating the asbestos to a vitrification temperature and melting it.The asbestos melting apparatus include a melting furnace 1 melting the w...
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JP2011525608A |
Process gas purification device (2) for a melt reduction system (1) comprising at least one reduction reactor (3) and a melting gasification reactor (4), a first line system (5) for discharging a furnace gas (6) from the reduction reacto...
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JP2011157565A |
To provide a stave for cooling a furnace body of a shaft furnace type metallurgical furnace, which has longer life compared to that of a conventional stave made of cast iron and is capable of reducing less heat loss compared to that indu...
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JP4751132B2 |
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JP4736226B2 |
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JP4723893B2 |
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JP2011122172A |
To provide a stave for cooling a furnace body of a shaft-furnace type metallurgical furnace, which can reduce heat loss occurring when the stave made from copper or copper alloy is used.The stave to be used for cooling the furnace body o...
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JP2011085349A |
To provide a gas collecting section of a compact shaft-type waste gasification melting furnace in a simple structure, which ensures a flow channel cross-section and makes the inner diameter of a shaft section and the diameter of the gas ...
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JP4662927B2 |
A method for burning lumps of material, in particular limestone, is carried out in a regeneration shaft kiln ( 3 ) with at least two kiln shafts ( 1, 2 ) interconnected by an overflow line ( 19 ) and in which the material to be burned pa...
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