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JP2910939B2 |
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JP2909857B2 |
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JPH11159963A |
To dry and melt metallic turning by one unit and collect cutting lubricant, etc., adhering to turning. A transfer tube 24 and a throw-in tube 25 to feed metallic turning M to a container 22 are connected to the container 22 while they ar...
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JPH11152510A |
To provide a pre-reduction furnace, in which a supplying tube is not clogged caused by the sticking of iron one having moisture, as a result, the iron one having the moisture can be treated by directly supplying into a fluidized bed. Thi...
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JP2902062B2 |
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JPH11140529A |
To establish an operational method which can efficiently preheat iron source without developing any trouble with the facility in an iron source supplying device, in an arc furnace providing a preheating vessel connected with the arc furn...
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JPH11131118A |
To provide a preliminarily reducing furnace for preventing the clogging of a dispersion plate nozzle and conducting the continuous operation by holding the temp. in a fluidized bed for preliminary reduction to a desired temp. without rai...
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JPH11125488A |
To provide a method and a system operable in the daytime and nighttime to produce molten steel by melting a cold iron source, e.g. iron scrap, at low cost. A melting furnace 1 containing iron scrap 3 comprises an oxygen burner 16 having ...
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JPH11100610A |
To prevent the trouble in an equipment caused by the combustion heat of unburnt gas in waste gas and to simultaneously improve the preheating efficiency of an iron source, at the time of preheating the iron source in a preheating vessel ...
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JP2882423B2 |
PCT No. PCT/AT93/00158 Sec. 371 Date Oct. 31, 1994 Sec. 102(e) Date Oct. 31, 1994 PCT Filed Oct. 19, 1993 PCT Pub. No. WO94/09163 PCT Pub. Date Apr. 28, 1994.In a process for the continuous melting down of scrap metal, in particular of b...
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JPH11503204A |
In order to be able to process in an economical manner different iron carriers in varying quantitative compositions, a plant for the production of iron melts (4), in particular steel melts, such as crude steel melts, is equipped withan e...
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JP2861794B2 |
Melting furnace having preheating vessel comprises : preheating vessels(25a, 25b) for preheating raw material; a melting furnace body (21a) having a tilting device and a heating device; a furnace roof (22) for covering a upper part of th...
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JPH1137663A |
To dispense with a device to carry and feed the cold iron source from a preheating chamber to a melting chamber, and to efficiently melt the cold iron source without using any electric power. In melting the cold iron source using an arc ...
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JPH1129815A |
To reduce an equipment cost of the whole work for arranging a preheating device for charging material and to enable extension of the preheating device for charging material to the existing work, in a preheating method for changing materi...
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JPH1129814A |
To reduce an equipment cost of the whole work for arranging a preheating device for charging material and to enable extension of the preheating device for charging material to the existing work, in the preheating device for charging mate...
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JP2851337B2 |
A container holding scrap iron for steel production is placed on a stand in a preheating station, where hot gas is passed through it to heat the scrap iron to a high temperature. The container comprises a cylindrical upper part, and a lo...
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JP2589541Y2 |
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JPH1123163A |
To provide a clog detector for scrap preheater/loader. The clog detector for a scrap preheater/loader disposed on the top of an arc furnace and supplying scrap 4 to an arc furnace while heating comprises a pair of nozzles 11 disposed opp...
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JPH1119930A |
To perform the kneading of a continuous strip member with the consumption of a small amount of energy and also prevent kneading time from varying under the influence of a seasonal factor by heating the continuous strip member when it pas...
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JPH1121607A |
To provide an operational method reducing the unit requirement of electric power, at the time of producing molten steel by using HBI or DRI at the blending ratio of >=50% in an arc furnace. In the arc furnace providing a preheating furna...
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JPH112493A |
To provide a melting furnace capable of perfectly burning and discharging the exhaust gas even if being abnormally produced in the furnace body. The melting furnace comprises a pre-combustion chamber 42 connected to a throat 3, an air fe...
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JPH111712A |
To provide a melting furnace which can prevent the clogging of a supplying course of scrap, etc. A control method of the melting furnace is executed by providing a preheating vessel 2 for preheating after storing scrap mixed material 1 o...
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JP2842198B2 |
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JPH10339580A |
To prevent bumping of molten steel generated with oxygen supplied from an injection pipe from being carried out by a method wherein a jet immersion depth is calculated in response to a detected position of molten metal level and an injec...
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JPH10339582A |
To prevent charged material from directly hitting a sealing member, by arranging an opening or closing function and a function of press fitting the sealing member for higher sealability while a moving track of a gate is held in a smaller...
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JP2835373B2 |
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JPH10325685A |
To preheat a scrap stably at a high temperature even if the ratio of a combustible gas in an exhaust gas is varied by providing a flow rate controller for a combustion promoting gas, i.e., the air and oxygen, thereby controlling the mean...
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JPH10318675A |
To use in common an oxygen feed refining and an arc refining, to recover thermal energy retained in exhaust gas by preheating a solid iron source such as scraps and to melt and refine the solid iron source with high thermal efficiency. T...
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JPH10310813A |
To provide a melting method of cold iron source which of viates necessity of a device for carrying and supplying the cold iron source into a melting chamber and can preheat the cold iron source in the following charge and can melt the co...
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JPH10310814A |
To provide a melting method of cold iron source which can preheat the cold iron source in the following charge and attain such an extremely high efficiency as not be obtained in the conventional melting equipment without particularly nee...
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JPH10311688A |
To melt a metal material efficiently only through an oxygen burner by specifying the combustion amount of the oxygen burner during an interval after the metal material is thrown into a preheating section before the metal material is drop...
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JPH10311687A |
To control the falling quantity of metal material from a preheating section to a melting section constantly within an optimal range by disposing the preheating section above the melting section provided with an oxygen burner, disposing a...
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JPH10306984A |
To provide a method and a facility for melting cold iron source with extremely high efficiency which can not be achieved by a conventional melting facility where scrap is preheated using exhaust gas an in which a cold iron source of next...
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JPH10300366A |
To prevent the overheating of fingers, to prevent the fusion of scraps to the fingers and to enable the charging of preheated scraps to a desired position inside a blast furnace. A tower body 21 provided with a scrap charging gate 22 and...
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JPH10300364A |
To get a high quantity of conducted radiant heat by arranging a plurality of nozzles to blow in combustion improving gas in parallel with the rotary shaft of a rotary kiln, within the plane vertical to the rotary shaft of the rotary kiln...
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JPH10300365A |
To prevent the overheating of the fingers of a gate and to prevent the fusion of scraps to the fingers. Inside a tower body 21 provided with a scrap charging gate 22 at an upper edge part of it and a scrap discharging gate 23 opposing th...
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JP2820615B2 |
PURPOSE:To provide a basket for heating zinc plated steel sheet scrap, which is employed in a vacuum treatment furnace and capable of unifying the temperatures of respective parts of charged steel sheet scrap in a comparatively short per...
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JPH10288471A |
To provide a method for preheating a large quantity of raw material efficiently up to a temperature as high as possible through a simple facility, delivering the heated raw material stably without causing suspension, and the like, and fe...
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JPH10288472A |
To lessen opening and closing of a door of a melting furnace and thereby to conduct production of dissolved metal of good quality by a method wherein a prescribed number of metal thin sheets are stacked at a prescribed position and the s...
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JPH10281667A |
To enable a utilization of exhaust gas for efficiently preheating scrap by disposing a plurality of preheating vessels above a furnace lid of a melting furnace substantially on the same plane for heating scrap using the exhaust gas disch...
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JPH10253268A |
To provide a method and device for melting light metal, the melting of light metal scrap or especially contaminated light metal scrap economically while protecting atmosphere carefully. Light metal is melted by a method wherein wastes an...
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JPH10197168A |
To reduce a quantity of heat of exhaust gas, to improve a preheat effect of metallic scrap, and to reduce an amount of cooling water consumption by a method wherein cooling water is circulated through a preheat chamber and refractory mat...
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JPH10185171A |
To provide a method for preheating and charging ash to a melting furnace, wherein a seal ring made of a material having a high heat resistance is employed and dry compressed air is supplied into a housing to pressurize the housing and mi...
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JPH10185456A |
To prevent the occurrence of a defective drop which is caused by welding of metallic scrap and to prevent the occurrence of a trouble on operation by a method wherein cooling water is circulated to a preheat wall, in a device wherein a p...
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JP2741363B2 |
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JPH1089857A |
To eliminate the possibility of generating trouble due to sucking scrap by a method wherein a discharging port, connected to a flue, is opened on the side wall of a preheating chamber while a lattice type ventilating door is interposed n...
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JPH1089855A |
To eliminate an occurrence of trouble caused by scrap sucked into a waste gas discharging passage in an electric furnace for pre-heating the scrap by a furnace top pre-heating device. This electric furnace 1 is constructed to have a scra...
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JP2568391Y2 |
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JPH1054674A |
To obtain a finger being light in weight and having little sustaining deformation, by a construction wherein a shaft body and the finger are made hollow inside and a cooling medium is made to flow through hollow parts formed therein. A g...
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JPH1054675A |
To throw scrap in a preheating device down into oblique direction or throw the scrap down into oblique direction to the vicinity of the lower part of an electrode for an arc furnace. An arc furnace 1 is provided with a preheating device ...
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