Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 701 - 750 out of 2,808

Document Document Title
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...  
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...  
JP2835373B2  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
JP2820615B2  
JPH10292990A
To provide an extremely efficient melting method and melting facility of a cold iron source that does not require any device for carrying and supplying the cold iron source to a melting room, can preheat the cold iron source to be charge...  
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...  
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...  
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...  
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...  
JPH10220971A
To reduce melting cost of overall metal by using low purity oxygen of predetermined oxygen concentration as combustion-supporting gas of an oxygen burner by using a metal melting furnace having a throttle unit having smaller inner diamet...  
JPH10213378A
To improve thermal efficiency and fuel cost without retaining unmelted material in a flue and to efficiently conduct melting operation by disposing a melted material holding member opened at its lower part in a preheating flue to have a ...  
JPH10197167A
To provide a melting furnace apparatus for continuously feeding preheated material to be melted to the furnace by uniformly preheating the material and preventing clogging of the material and damage of a material supply unit. The melting...  
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...  
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...  
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...  
JPH10185453A
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...  
JP2741363B2  
JPH1089856A
To prevent the generation of a trouble due to sucking scrap by a method wherein a lattice type ventilating bottom plate, capable of supporting the scrap, is pivoted in a vertical cylindrical preheating chamber while the discharging port ...  
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...  
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...  
JP2568391Y2  
JPH1072614A
To provide a preheating method of an iron scrap, by which the generation of an aromatic organic chlorine compound is restrained as little as possible in a preheating furnace of the iron scrap charged into a melting furnace such as electr...  
JPH1068594A
To prevent a heat dissipation at the time of tapping in an arc furnace having a preheater, while making it unnecessary to secure a wide space at the time of opening a furnace lid and slinging work. A preheater 10 is disposed at an upper ...  
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...  
JPH1054673A
To enable storage of a large amount of scrap by a construction wherein gates which have airflow holes and can be opened and closed are disposed in an internal space of a tower body so that they protrude partially outside a furnace wall o...  
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 ...  
JPH1047860A
To contrive the improvement of productivity by recovering the sensitive heat as well as the latent heat of exhaust gas from a furnace more efficiently. A dual type arc melting furnace, consisting of one set of power supply 2 and two sets...  
JPH1038476A
To stably and sufficiently improve the preheating efficiency of scrap by feeding a charcoal material into a preheater mounted on the top of a melting furnace to introduce a gas containing oxygen. A shaft 21 communicating with the inside ...  
JPH1030887A
To prevent the heat of an exhaust gas from being lost, and improve the pre-heating efficiency of scrap by a method wherein a shaft of a double structure, which constitutes the pre-heating device, is cooled by spraying in response to the ...  
JPH1026482A
To improve the efficiency of preheating of scrap by regulating a charging position of the scrap in relation to the whole scrap so that an exhaust gas passage be ensured in preheating equipment, on the occasion when the scrap charged in t...  
JPH102673A
To perform an efficient and continuous preheating of scraps, further reduce a melting energy origin unit when scraps are melted at a melting furnace and perform a more smooth preheating and feeding of scraps. In the case that scraps S of...  
JPH09318280A
To prevent powder raw material from being accumulated on a horizontal plane of a raw material receiving member and enable powder raw material fed from a shoot onto the horizontal plane of the raw material receiving member to be uniformly...  
JP2690319B2  
JP2553118Y2  
JP2671936B2  
JP2550677Y2  
JPH09257377A
To prevent variations of preheating of metal scrap by independently operating one or several fingers among a plurality of fingers for forming a fork of a preheating apparatus mounted on the top of the furnace. An upper and lower two stag...  
JPH09257378A
To make metal scrap uniform and improve preheating efficiency by supplying power to an electrode inserted into another arc furnace before introduction of waste gas, and boring the metal scrap. When initially loaded metal scrap is melted ...  
JPH09243274A
To enhance efficiency of preheating of metal scrap by separately feeding a sufficient amount of oxygen for burning carbon monoxide to each part of a preheating device to preheat metal scrap in the preheating device provided at a top port...  
JPH09243275A
To enable effective and uniform heating of metal scrap by adjusting air flow rate according to temperature and flow rate of exhaust gas generated from a melting furnace having a scrap preheating device provided in a top portion of the fu...  

Matches 701 - 750 out of 2,808