Apparatus for the combustion of gas exiting from a furnace, for the preheating of scraps entering the furnace itself and related process

An electric arc furnace and equipment technology, applied in lighting and heating equipment, chemical instruments and methods, preheating costs, etc., can solve problems such as difficult calibration and control, high cost, complexity, etc., to achieve increased efficiency, improved control, and less burden Effect

Active Publication Date: 2012-03-14
ТЕНОВА ТЕКНОЛОДЖИЗ (ТЯНЬЦЗИНЬ) КО., ЛТД.
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This part of the system is costly, complex and difficult to calibrate and control

Method used

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  • Apparatus for the combustion of gas exiting from a furnace, for the preheating of scraps entering the furnace itself and related process
  • Apparatus for the combustion of gas exiting from a furnace, for the preheating of scraps entering the furnace itself and related process
  • Apparatus for the combustion of gas exiting from a furnace, for the preheating of scraps entering the furnace itself and related process

Examples

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Embodiment Construction

[0068] Referring to the drawings, in general and in particular to Figure 1, there is shown an embodiment of an apparatus according to the invention in which an electric arc furnace 10 for the production of steel has an extended preheating chamber or tunnel 12, preferably a vibrating channel, for the Metallic and non-metallic charges are introduced into the furnace.

[0069] Furnace 10, represented as a three-phase electric furnace, may alternatively be a DC electric furnace, a plasma furnace or an induction furnace.

[0070] The preheating tunnel or cavity 12 has an elongate support 14 covered by a corresponding extension cover, preferably coated with a refractory material.

[0071] The preheating chamber or tunnel 12 has a mechanical seal 18 at and from the inlet end of the charge, which successively comprises: an inlet or introduction section 21 for the charge, comprising a A containment system 18 of controlled access tunnels; one or more heating sections or zones 24; and a...

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PUM

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Abstract

An apparatus for the combustion of gas exiting from an electric arc furnace for the preheating of scraps entering the furnace itself foresees an insertion device of comburent substance into a preheating chamber or loading tunnel of the scrap metal having an inlet section of the scrap metal, a seal section to prevent an uncontrolled entrance of air in the tunnel, a heating section and an unloadingsection of the scrap metal in the furnace. Said insertion device of the comburent substance comprises one or more adjustable openings placed in the loading tunnel, and said apparatus comprises a device or a series of devices, also not equipped with autonomous movement, of mechanical seal nature placed in the insertion or inlet section of the scrap metal in the loading tunnel or preheating chamber.

Description

technical field [0001] The present invention relates to an apparatus and related process for the combustion of exhaust gases from a furnace to preheat scrap entering the furnace itself. Background technique [0002] Continuous charging systems for scrap in electric arc furnaces (EAF) for steel production, such as CONSTEEL The system is getting more and more attention. [0003] The continuous charging system of scrap in electric arc furnaces combined with the preheating system for the preheating of scrap metal entering the furnace itself allows to reduce the processing time of scrap metal in EAF and to reduce the EAF heat requirement, this heat is in the form of electrical or chemical energy supply. [0004] In similar to CONSTEEL In the structural procedure of the system, the uniform procedure hitherto, the charging tunnel or preheating chamber of the furnace in which the scrap metal is charged, is at a reduced pressure relative to the environment, thus effectively acti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B3/18F27D17/00F27D13/00F27D99/00
CPCF27B3/18C21C5/567F27D17/003F27B9/10F27D13/002Y10S266/901F27B3/28C21C5/565F27D19/00F27D99/0073F27B9/38Y02P10/20F27B3/10F27D13/00F27D17/00
Inventor P·阿根塔S·雷亚利C·洛达蒂M·比安奇费里
Owner ТЕНОВА ТЕКНОЛОДЖИЗ (ТЯНЬЦЗИНЬ) КО., ЛТД.
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