Roller hearth furnace for heating and/or temperature equalisation of steel or steel alloy continuous cast products and arrangement thereof before a hot strip final rolling mill

A heating furnace and continuous casting technology, used in workpiece heating devices, heat treatment furnaces, metal rolling, etc., can solve problems such as low thermal efficiency and large heat loss, and achieve the effect of improving energy saving and thermal efficiency.

Active Publication Date: 2009-02-11
SMS DEMAG AG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore generate large heat loss and have low thermal efficiency

Method used

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  • Roller hearth furnace for heating and/or temperature equalisation of steel or steel alloy continuous cast products and arrangement thereof before a hot strip final rolling mill
  • Roller hearth furnace for heating and/or temperature equalisation of steel or steel alloy continuous cast products and arrangement thereof before a hot strip final rolling mill
  • Roller hearth furnace for heating and/or temperature equalisation of steel or steel alloy continuous cast products and arrangement thereof before a hot strip final rolling mill

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Embodiment Construction

[0021] Roller hearth furnace ( figure 1 ) for heating and / or holding and / or temperature equalizing the continuously cast product 2 ( FIGS. 2 to 5 ) which is cast from slab strips or flat thin strips 3 (so-called thin slabs). Liquid steel flows out from pouring ladle 4 li for this reason through a batching channel that has continuous casting crystallizer 6, and wherein two ladles face each other and are arranged on a ladle turret 5 and can be rotated to the tapping position. The continuously cast strand 6 a formed in the continuous casting mold 6 is cooled and further cooled and supported in a roll support stand 7 . The respective continuous cast product 2 is descaled in a descaling device 8 and cut in sections 10 of several meters in length in a shear 9 . The segment length 10 suitable for furnace and rolling is determined by the dimensions of the cast strip and the subsequent rolling process.

[0022] segment length 10( figure 1 ) is transported on the entry side 11 by a f...

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Abstract

The invention relates to a roller hearth furnace (1) for heating and / or temperature equilibration of continuous cast products (2), comprising a first series of rollers (13) running in the longitudinal direction (12) and a second parallel series of rollers (15) on the outlet side (14), wherein a buffer zone (16) with lifting elements (17) for the perpendicular transport of the continuous cast product (2) is arranged between the series of rollers (13, 15). Furthermore, alternative arrangements for a further process route (28) are provided.

Description

technical field [0001] The invention relates to a roller hearth furnace for heating and / or temperature equalizing continuously cast products, in particular consisting of steel or a steel material, which can be passed over rollers in a section length suitable for the furnace Furnace chamber input and output, as well as the arrangement of the heating furnace in front of the hot-strip finishing train, where the hot-strip is also rolled, cooled and coiled in a coiling station plate. Background technique [0002] Such a roll bottom heating furnace is very long and has heat loss, and it is placed on the roll for a long time to be pressed into the bottom surface of the continuous casting product due to the re-baking of the scale, which subsequently causes rolling during rolling. The quality of the parts, especially the rolled strip, is reduced. [0003] A roll hearth furnace of this type arranged upstream of the hot strip finishing train is known, for example, from DE 44 11 216 A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B9/02F27B9/24F27B9/20B22D11/12C21D9/00
CPCF27B9/201B22D11/142B22D11/1213C21D8/0226F27B9/021B21B1/466F27B9/2407C21D9/0081B21B45/004F27B9/28F27B9/00
Inventor C·克莱因D·霍夫曼F·本弗
Owner SMS DEMAG AG
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