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JP2003200131A |
To recycle an end-of-life vehicle (ELV) as an iron resource without shredding it, or without producing shredder dust.When cubic waste car press scraps 15 obtained from the ELV without shredding are melted together with municipal scraps 1...
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JP2003193149A |
To realize saving of a cost and of a space by performing each treatment of a heating, a dezincing in vacuum, and a melting, in charging material containing zinc into a metal melting furnace.The material V (scrap or metallic dust or mixtu...
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JP3419950B2 |
PURPOSE: To provide a preheating apparatus wherein installation reliability of a stock material holding gate of the preheating apparatus is improved, installation cost is also reduced, and melting power energy is reduced without deterior...
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JP2003166786A |
To provide a metal melting furnace capable of providing molten metal with desired compositions by using as raw material one or more materials of conventional standard materials, return materials or pure metallic materials and accepting c...
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JP3412218B2 |
PURPOSE: To reduce a predetermined quantity of purging inert gas and to shorten a length of a furnace in a method for heat treating in an atmosphere by heating an article to be heat treated slightly containing moisture like carbon sinter...
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JP2003129138A |
To recycle end-of-life vehicles and waste electrical household appliances generating in large quantities, as iron sources, without shredding them, namely, without generating shredder dusts.When melting pressed scrap of end-of-life vehicl...
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JP2003113413A |
To recycle scrapped large numbers of automobiles and electric appliances as iron sources without shredding them.Melt pressed scrap of the unshredded scrapped automobiles or electric appliances is used as a raw material 16, by using a mel...
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JP3395899B2 |
To provide an on-vehicle type contaminated soil effluent treating device which can make contaminated soil effluent uncontaminated by efficiently treating the contaminated soil effluent taken out of a cathode side of electrode pairs inser...
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JP2003083685A |
To provide a system for drying pulverized matter, particularly coke, and a system for injecting into a furnace, in which an installation for drying and a transport means such as a tank-lorry are not particularly needed, wide receiving ar...
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JP2003073724A |
To effectively desulfurize molten pig-iron in a KR (mechanically stirring) desulfurization process, and reduce a cost for desulfurizing the molten pig-iron and slag generation quantity in preliminary treatment.The desulfurization method ...
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JP2003065677A |
To improve a thermal efficiency in a melting device equipped with a vertical melting furnace.The charging unit 21 of a ferrous raw material 2 is provided above the melting furnace and the supplying unit 26 of carbon fuel 3 is provided be...
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JP2003042429A |
To reduce the area of a site required for ash melting equipment by reducing the total energy required for ash melting without performing ash melting before starting power generation. There are provided a refuse incinerator 1 where remain...
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JP2002349831A |
To provide a disposing method and a disposing device to facilitate combustion disposal of composite waste 4, containing a metal and combustible organic material, such as a waste electric cable. A flame 5 having combustion supporting abil...
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JP2002327211A |
To enable a stable operation without causing bow out of exhaust gas from a melting room, by ensuring outgassing in a preheating room, when producing a molten metal by blending directly reduced iron at a high blending rate of 50% or more,...
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JP2002538295A |
An improved method and apparatus for preheating, melting, refining and casting of steel. The apparatus has a variable length secondary belt conveyor positioned in a charging area for introducing minute charge materials or slag formers, a...
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JP3343164B2 |
PURPOSE: To provide a melting furnace provided with a raw material preheating feeding device, by which waste heat of the melting furnace can be effectively used for preheating of raw materials to be next fed, and the preheated raw materi...
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JP3338471B2 |
PURPOSE: To enable shredder lightweight dusts to be processed, reduce energy consumption of a high-temperature melting furnace, and enable the temperatures of slag and water to be controlled more easily at comparatively high melting temp...
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JP3336521B2 |
An apparatus for melting a metal provided with a metal melting furnace (10) for melting a metallic raw material with a flame of an oxygen fuel burner (11) to which oxygen is supplied as a combustion assisting gas; and an oxygen supply so...
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JP2002294347A |
To provide a jet preheating method and a preheating device which are easily adaptable to change in condition even when the change occurs, and enable improvement of production yield and stable operation by effectively utilizing waste heat...
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JP2002285225A |
To apply recycle treatment to spent cars and spent electric home appliances generated in large quantities as an iron source without treating them with a shredder.When a waste car scrap or a waste car pressed scrap or a waste electric hom...
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JP3329248B2 |
To provide a cold pig iron source melting method and a melting facility which is possible of preheating of a cold pig iron source for the next charge without needing especially a device for carriage supply of a cold pig source to a melti...
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JP2002526739A |
A direct-current arc furnace for producing steel has a smelting vessel with electrodes, tapping openings for the molten mass and slag, and a device for a direct removal of exhaust gases. The smelting vessel is extended upwardly by a cent...
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JP3310502B2 |
To improve preheat efficiency through sufficient ensurance of the flow of preheat gas and to ensure opening without maintenance by a method wherein the furnace cover of the molten steel output nozzle of an arc furnace is coupled to an ex...
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JP2002206859A |
To provide melting equipment which can prevent the bridging of a cold iron source in a preheating chamber in melting using arc melting equipment having the preheating chamber directly connected to a melting chamber.The melting equipment ...
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JP3305491B2 |
PURPOSE: To efficiently and effectively recover sensible heat and to recover detrimental substances according to components by providing material introducing units at the top of a U-shaped integral body having two oblique hearths, a melt...
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JP3305492B2 |
PURPOSE: To efficiently operate a melting furnace without maintenance by providing fuel nozzles at the bottoms of two aligned material charging towers coupled at the bottoms and supply and exhaust units having switching valves at tops, s...
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JP2002181452A |
To provide a composite electric furnace and its operating method wherein incinerated ash can be processed at an operation cost lower than a conventional one as the degree of capacity reduction and non-noxiousness can be maintained for pr...
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JP2002181460A |
To provide a fresh crucible furnace to have comparatively simple structure suited for a batch type crucible furnace, improve the working efficiency of the crucible, and further, be effectively to saving of energy and improvement of work ...
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JP3295011B2 |
To suppress energy consumption by efficiently discharging molten metal. The melting furnace apparatus comprises a holding furnace body 2 for burning gas such as natural gas to hold molten metal Y at a predetermined temperature, a melting...
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JP2002173716A |
To recycle a large number of used automobiles and used household electrical appliances as an iron source without applying shredding treatment, i.e., without generating shredder dust.On melting scrapped automobile press scraps or scrapped...
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JP3292012B2 |
To stabilize the operation of a smelting reduction furnace even at the abnormality in the operation of a pre-reduction furnace or the smelting reduction furnace, e.g. temporary increase of an iron ore in the pre-reduction furnace or abru...
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JP2002156186A |
To provide melting equipment and a treatment method which enable efficient execution of both melting of a cold iron source and treatment of waste or enable efficient treatment of car scraps subjected to shredding, without causing a disad...
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JP2002147970A |
To solve a problem that, in a conventional electric heater type preheating device, since heating capacity is low and a temperature increase speed is not so fast, when heating capacity is increased, a heater is increased in size and as a ...
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JP2002515114A |
PCT No. PCT/IB98/00427 Sec. 371 Date Sep. 27, 1999 Sec. 102(e) Date Sep. 27, 1999 PCT Filed Mar. 23, 1998 PCT Pub. No. WO98/42880 PCT Pub. Date Oct. 1, 1998Basket to manipulate scrap in cooperation with an arc furnace (11) and with means...
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JP2002130644A |
To provide a method for melting treatment of burned ash which eliminates the possibility of steam explosion and reduces treatment costs.Burned ash is charged in a reactor vessel and melted, followed by separation into molten metal, slag ...
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JP2002129222A |
To provide a method for melting a cold iron source and its melting facility with which the cold iron source can be preheated without needing a preheating chamber and molten iron temperature at tapping time of the molten iron can be contr...
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JP2002121613A |
To prevent a trouble caused by the lowering of molten iron temperature by heating up the molten iron temperature at tapping off when cold iron is melted while supplying the cold iron into a preheating chamber so that the cold iron contin...
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JP2002121612A |
To prevent the generation of dioxin, white fume and malodor in exhaust gas while preventing the abnormal combustion such as explosion, caused by the combustible component in the exhaust gas exhausted from a preheating chamber when cold i...
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JP2002121611A |
To stably perform the supply a cold iron source from a preheating chamber to a melting chamber when the cold iron source in the melting chamber is melted and tapped off by using an arc melting apparatus having the preheating chamber dire...
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JP3273168B2 |
PURPOSE: To provide a scrap conveying apparatus of a vibratory conveyance system wherein furnace waste gas is introduced and scrap is supplied to an arc furnace while being preheated, and wherein there is no tear of scrap being clogged, ...
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JP2002090066A |
To provide a scrap preheating type electric steel making furnace having a high heat recovery efficiency without needing a high initial cost.One side wall of a body 7 of an arc furnace is externally enlarged to integrally form a preheatin...
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JP2002509189A5 |
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JP2002509189A |
In a charging material preheater for preheating charging material (60) which is to be charged into a furnace vessel (3), having a shaft (9) which is fixed in a frame structure (20) and which in its upper region has a closeable feed openi...
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JP2002086262A |
To effectively remove foreign matter contained in molten metal and also, to improve a maintenance service of an oxide convection preventive plate provided with a filter member part.The oxide convection preventive plate 3 is formed of a g...
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JP2002053908A |
To restrain remaining cold iron source which has not been melted in a melting chamber from a preheating chamber when the melting is completed in a last heat, in the case of melting the cold iron source using an arc-melting facility havin...
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JP2002503798A |
A feeding device for low shaft furnaces, in particular for arc furnaces for melting scrap, it being possible for the furnaces to be closed by a cover connected to a gas-extracting device, and it being possible for a charging apparatus to...
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JP2002031487A |
To prevent dioxins or the like from being generated and at the same time, prevent abnormal combustion, such as the explosion of an exhaust gas containing flammable constituents when dissolving, using arc dissolution facilities having a s...
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JP2002022367A |
To prevent shelf suspension of a cold iron source in the preheating chamber when it is melted using an arc melting facility having a shaft type preheating chamber coupled directly to the upper section of the melting chamber.In such a met...
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JP2002022368A |
To prevent generation of dioxins and white smoke or stench in exhaust gas stably while preventing abnormal combustion, e.g. explosion due to combustible components, even if unburnt combustible components are left in the exhaust gas at th...
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JP2002022366A |
To obtain a method for melting a cold iron source in which contact area between molten steel and a cold iron source is decreased by tilting a melting chamber using an arc melting facility having a shaft type preheating chamber coupled di...
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