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JPH08157930A |
PURPOSE: To simply, efficiently and stably preheat a charged scrap at a low cost by covering the surroundings of a scrap conveying device with a gas seal cover and arranging a shielding plate tiltable in a flue formed on the scrap. CONST...
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JPH08136163A |
PURPOSE: To safely operate by controlling the flow of exhaust gas in an exhaust gas controller for preheating scrap by the gas. CONSTITUTION: A scrap preheater has a preheating chamber 10 provided on an arc furnace 1 to contain scrap to ...
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JPH08136138A |
PURPOSE: To provide a DC arc furnace in which an arc deflection in the DC arc furnace is effectively utilized, an efficient melting of scrap is carried out, with a superior heat efficiency and productivity, and a less cost of equipment. ...
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JPH08134524A |
PURPOSE: To prevent scrap from being not molten completely and a furnace main body from being partially damaged and to uniformly melt the scrap in a short time by fitting a shaft type scrap preheating device to a furnace roof by being co...
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JPH08121976A |
PURPOSE: To prevent fusion welding from being produced even when a small piece of scrap such as car shredder scrap is preheated at high temperature. CONSTITUTION: Car shredder scrap having 50mm average diameter and lime stones having 30m...
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JPH0875375A |
PURPOSE: To alleviate a heat load to a preheating tower lower end member by communicating the upper preheating chamber of each preheating tower at its upper part, and providing an inlet of exhaust gas generated from a melting furnace at ...
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JPH0859312A |
PURPOSE: To enhance the heat efficiency of a large-sized and heavy electrostatic precipitator by setting the precipitator on the ground. CONSTITUTION: A kiln 12 connected to a calcining furnace 6 arranged at the lowermost stage of plural...
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JPH0820180B2 |
PCT No. PCT/EP91/00916 Sec. 371 Date Mar. 16, 1992 Sec. 102(e) Date Mar. 16, 1992 PCT Filed May 16, 1991 PCT Pub. No. WO91/18120 PCT Pub. Date Nov. 28, 1991.In a smelting plant including two melting furnaces which are arranged in juxtapo...
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JPH0849986A |
PURPOSE: To reduce the electric power consumption and shorten the melting time required for melting by introducing a combustion exhaust gas used for the preheating of material within a preheating drum into a preliminary preheating chambe...
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JPH0839036A |
PURPOSE: To prevent fly ash in a treatment process from scattering, to reduce the volume of exhaust gas by reducing the volume of accompanying air into a melting furnace, to collect mercury, etc., efficiently to make the treatment of exh...
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JPH089494B2 |
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JPH083920Y2 |
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JPH0821691A |
PURPOSE: To efficiently preheat and melt scrap by the secondary combustion of exhaust gas while suppressing the oxidation of the scrap to a minimum limit. CONSTITUTION: A method for preheating and melting iron scrap by an electric furnac...
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JPH083656A |
PURPOSE: To obtain high quality Al from an Al layer in high yield by preheating and compressing continuously fed Al layer, etc., and remove the contained foreign matter therefrom and, thereafter, rapidly melting the residue in a high tem...
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JPH07122087B2 |
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JPH07332866A |
PURPOSE: To extend the range to which the effect of a flame reaches so as to accelerate the fusion in speed by inducing gyratory motion in the melt in a furnace body with a burner for gaseous or liquid fuel placed at the top of the furna...
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JPH07332874A |
PURPOSE: To achieve in a steel-making arc furnace fed with preheated scrap increase of the temperature of the preheated raw material, structural simpleness of the equipment, advantages in maintenance, and improvement of the work environm...
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JPH07309648A |
PURPOSE: To provide an apparatus for firing cement capable of attaining the effective utilization of waste gas, high thermal efficiency and the reduction of installation space. CONSTITUTION: This apparatus for firing cement has a rotary ...
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JPH07310912A |
PURPOSE: To completely dry waste and to prevent a fire from being caused around a dryer or a molten material from adhering to the inner part of the dryer. CONSTITUTION: In a waste melting and processing device for drying a waste by a dry...
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JPH07286785A |
PURPOSE: To provide a continuous charging device for scrap, which is high in preheating efficiency, without increasing the width and length of a transfer device. CONSTITUTION: An electromagnets 5 or permanent magnets equipped with an ele...
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JPH07277789A |
PURPOSE: To prevent adhesion of a cement raw material to a firing device and to enable stable operation of a rotary kiln by calcining the cement raw material while vibrating a preheater with a calcining furnace and firing the cement raw ...
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JPH07270074A |
PURPOSE: To obtain a high grade cast product which maintains a high equalizing state, and in which additives or impurities included in a molten metal are uniformly distributed and the segregation of a cast ingot or the like is low. CONST...
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JPH0796464B2 |
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JPH0791096B2 |
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JPH07252545A |
PURPOSE: To melt a high purity metal at a low cost by oxidizing and removing impurities in metallic scrap with high temp. exhaust gas in a melting furnace and charging the treated metallic scrap into the melting furnace, at the time of p...
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JPH0776671B2 |
An apparatus for preheating a granular material having a suspension preheater (1) including a plurality of stages of cyclones arranged above a calcination furnace (4) such that the granular material is preheated by waste gas from the cal...
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JPH0776344B2 |
PURPOSE:To ensure smooth feeding of a feedstock into a feedstock melting machine by passing a feedstock from a hopper through a horizontal cylinder equipped with a cooling means and a vertical cylinder equipped with a heating means each ...
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JPH07208877A |
PURPOSE: To releave a worker from a heavy labor, and improve and stabilize the quality of a cement product, and improve thermal efficiency by surely and safely removing scales with a cleaning apparatus. CONSTITUTION: There are provided t...
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JPH07206487A |
PURPOSE: To increase the atm. of combustible industrial waste to be utilized and to prevent overheating of the inside of a furnace by the combustion heat. CONSTITUTION: This calcination furnace is provided with a vortex chamber 5 at the ...
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JPH0734319Y2 |
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JPH07198273A |
PURPOSE: To efficiently preheat a material to be melted by providing a shaft between an exhaust port of exhaust gas of an electric furnace body and an exhaust gas sucking fan, and loading the material to be melted thereat. CONSTITUTION: ...
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JPH07198271A |
PURPOSE: To provide a blast furnace scrap preheating tower wherein a scrap holding door light in an empty weight and strong in a scrap holding strength, in a blast furnace scrap preheating tower used for melting a metallic material or fo...
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JPH07190629A |
PURPOSE: To improve heat exchanging efficiency by a method wherein thrown scrap material is supplied to a heat exchanging unit through a sealed unit to pass through the throat unit from a furnace body and preheat it by high- temperature ...
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JPH07190642A |
PURPOSE: To provide a scrap preheating device in a steel making arc furnace, which is capable of utilizing heat energy effectively even during chanrging scraps. CONSTITUTION: The preheating device is for preheating material scrap by exha...
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JPH07180975A |
PURPOSE: To prevent melting or fixing of scrap generated when the scrap of which preheating is not suitable by a method wherein an exclusive feeding part for the scrap of which preheating is not suitable is installed at a scrap feeding p...
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JPH07174473A |
PURPOSE: To prevent generation of dusts by eliminating a problem due to molten scrap and reducing a thermal loss. CONSTITUTION: At least two smoke exhaust ports 5A, 5B openable by a smoke exhaust port cover 9 are provided at a cover 19 o...
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JPH0762586B2 |
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JPH0762587B2 |
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JPH07167570A |
PURPOSE: To remove odor and white smoke generated in a preheating tank in a positive and less expensive manner. CONSTITUTION: A method for preventing occurrence of odor and white smoke when hot melted item filled in a preheating tank 14 ...
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JPH0755846B2 |
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JPH0755847B2 |
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JPH07146082A |
PURPOSE: To fix chlorine, etc., generated at the time of preheating as chloride and to reduce generation of organic chlorine compound itself by adding salt of at least one type of element selected from alkalis to scrap when the scrap is ...
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JPH07145420A |
PURPOSE: To uniformly burn carbon monoxide, to improve the thermal efficiency and to prevent the introduction of the carbon monoxide into a preheating device by calculating the generating quantity of the carbon monoxide generated in a fu...
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JPH07139883A |
PURPOSE: To provide an installation for producing liquid metal in which a dangerous state of forming toxic products is made minimum and a high productivity is attained. CONSTITUTION: There are provided an electric melting furnace 2 havin...
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JPH0746033B2 |
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JPH0746034B2 |
PURPOSE:To preheat the scrap prior to melting by the combustion heat of the gas generated during melting of the scrap and to reduce energy consumption for the melting operation of the scrap by connecting plural surfaces which can preheat...
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JPH0720559Y2 |
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JPH07120173A |
PURPOSE: To effectively utilize waste gas heat for scrap preheating in a melting furnace for use in melting of metal materials and refining of molten metal. CONSTITUTION: In a melting furnace for use in melting of metal materials and ref...
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JPH0742145B2 |
This invention relates to a method and an apparatus for heat treatment of a powder material comprising a device for post-combustion of the combustible constituent remaining in the powder material which contains, or is mixed with, a const...
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JPH0717332U |
[Purpose] Use city waste as an alternative energy source. [Constitution] In a powder raw material preheating / firing device having a multi-stage preheating device 12 and a rotary kiln 2 and a clinker cooler 19 connected to the multi-sta...
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