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Patent Searching and Data


Matches 651 - 700 out of 2,808

Document Document Title
JPH11304374A
To provide a material preheater for reducing an impact to the holding gate of the bottom part of a material container due to the fall of a charged material in the preheater of the charged material of an arc furnace used for melting a met...  
JPH11294968A
To enhance heat transfer efficiency from a frame to a scrap by specifying the the oxygen ratio of a supporting gas to a combustible gas and controlling the blowing of the supporting gas such that the delivery current velocity of a suppor...  
JPH11294969A
To melt scarp with high thermal efficiency by introducing a part of exhaust gas on the outlet side of a rotary kiln to a preheating vessel when the heating value of exhaust gas from a melting furnace is higher than a specified level ther...  
JPH11294970A
To obtain a low reheating device. A reheating device is provided with cyclones 20-24 being horizontally arranged, a plurality of connection ducts 25-28 that extend from the top part of each cyclone by required length downward and at the ...  
JPH11293351A
To provide a preheating and melting method of scrap, with which dust having high zinc concn. developed at the time of preheating and melting the scrap containing the zinc can be separated and recovered. In an apparatus for preheating and...  
JPH11281264A
To reduce fuel for melting an ingot by disposing a suction blower in an exhaust gas duct extending between a melting furnace exhaust opening for introducing exhaust gas from a melting furnace to a preheater and the suction opening of the...  
JP2984202B2
To preheat a material to be melted and feed the material into a melting furnace continuously without exposing the preheated material to fresh air. There are provided a melting furnace 1 that rotates around a substantiallhy horizontal axi...  
JPH11248356A
To provide a method for melting a cold iron source with high efficiency to reduce a power unit requirement and a melting facility. The method for melting a cold iron source 17 in an arc furnace 1 having a melting chamber 2 including arc ...  
JPH11241889A
To provide an arc melting facility of cold iron source having extremely high efficiency unachievable through a conventional melting facility for preheating scrap using exhaust gas in which a unit for carrying/feeding cold iron source to ...  
JPH11237191A
To maintain a smooth flow of an exhaust gas discharged from a preheating device and the functions of a deodorizing tower, dust collector, etc., by catching small pieces of metallic scraps contained in the exhaust gas and, at the same tim...  
JPH11229024A
To provide a scrap preheating-charging device, in which the preheated scrap can be charged at almost central part of a melting furnace without developing any trouble, even in the case of melting down a part of the scrap during preheating...  
JPH11223474A
To ensure safety operation at high energy efficiency while suppressing contamination by providing a single number of chamber with a top section having a cold scrap inserting means, a bottom section having means for discharging heated scr...  
JPH11211365A
To prevent small pieces a metallic scrap from entering between a socket and a jacket, by sealing off the socket and the shaft wall from each other by making the side periphery of the socket and the side periphery of the jacket slide on e...  
JP2930223B2  
JPH11201661A
To prevent metal scrap in each duct from adhering and growing at the time of feeding or discharging by coupling exhaust ducts while facing a prehearting chamber defined by an openable finger in a shaft mounted on the top of a furnace and...  
JP2921380B2  
JP2921381B2  
JP2918111B1
[Summary] Subject While making pressure loss low and miniaturizing a cyclone, securing the dust-collecting efficiency of the cement raw material preheating equipment which uses a cyclone for many stages installing it, height is made low ...  
JPH11183045A
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...  
JPH11172309A
To provide a smelting reduction apparatus, in which good fluidizing condition in a fluid is stably formed, a prescribed reduction capacity is obtd., the increase in dust loss is prevented and the control of supplying quantity into the sm...  
JP2910939B2  
JP2909857B2  
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...  
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...  
JP2902062B2  
JPH11148780A
To provide a scrap preheating device for a fusion furnace wherein a twist of a finger, etc., is prevented and an action locus of a connection rod can be drawn small. In a scrap preheating device comprising a finger 15 which supports a sc...  
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...  
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...  
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 ...  
JPH11106812A
To prevent the reoxidation of reduced ore and to reduce the consumption of fuel, at the time of operating a rotary hearth furnace. At the time of executing the reduction of the ore by repeating one series of operations of preheating, red...  
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 ...  
JP2882423B2  
JPH11503204A
(57) since a different iron content thing from which the rate of a summary weight part changes can be manufactured by an economical method, While being a plant for manufacturing 溶融鉄 (24), such as 溶融鋼 like especially 溶融 cr...  
JPH1151574A
To obtain an operation method which eliminates the need for a device for conveying an iron source from a preheating chamber to a melting chamber while facilitating heating of the iron source at a high efficiency in an arc furnace. In an ...  
JP2861794B2  
JP11037663A
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 ...  
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...  
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...  
JP2851337B2  
JP2589541Y2  
JP11021607A
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 furn...  
JP11023156A
To provide a fusion furnace for metal and fusion method for metal which enables the heat energy by the combustion of an oxygen burner to be utilized efficiently, and improves the productivity. These are a fusion furnace of such constitut...  
JP11023163A
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...  
JPH116688A
To prevent steel scraps from adhering to each other through oxidation by preheating the scrap at a specified temperature while controlling the limit oxygen concentration representative of the oxygen concentration in a heated atmosphere t...  
JPH116686A
To provide a method and apparatus for feeding a steelmaking material wherein operation process is simplified and heat loss or the like is improved by feeding the steelmaking material quantitatively without interrupting operation of a ste...  
JPH112492A
To provide a melting furnace capable of efficiently discharging an abnormally produced exhaust gas in the furnace body. The melting furnace comprises a main exhaust pipe 31 connected to a preheating tank 2, a bypass exhaust pipe 41 conne...  
JPH112491A
To provide a melting furnace capable of adequately controlling the pressure in the furnace body to prevent the gas or dust from blowing off or the scrap fed from a preheating tank from being held up. The melting furnace comprises a prehe...  
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...  
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...  
JP2842198B2  

Matches 651 - 700 out of 2,808