Description: Das Projekt "Einbau einer Abdeckung an der Breitbandwarmwalzanlage in den Eisen- und Stahlwerken Bremen" wird vom Umweltbundesamt gefördert und von Klöckner-Werke, Hütte Bremen durchgeführt. Objective: The aim of the project is to use hydraulic movable covering hoods in the cogging train area of the hot wide strip mill to reduce the energy losses from the strip through radiation. General Information: The hot wide strip mill in Bremen produces about 3.3 million tons per year. The produced strips are of widths ranging from 600 to 2150 mm with thicknesses ranging from 1.5 to 30 mm. This fully continuous rolling mill has an unusually long path length of 400 m from the walking beam heating furnaces to the end shears. The material takes about 3 minutes to cover this distance during which time a large temperature loss occurs. In order to minimise this loss of energy the last 90 metres, up to the end shears, will be covered with insulating hood segments, each 6 metre in length and hydraulically controlled. The reflective lining of the hoods will be designed to withstand the strong radiation from the strip, mechanical movement and large temperature changes. They must also be resistant to the water vapour produced by cooling the rollers, although this problem could be alleviated by installing inside-cooled rollers. Installation of these hoods will mean either that to maintain the same temperature at the finishing mill, a lower temperature in the walking beam furnace can be used. Or, if the temperature of the walking beam furnace is kept the same as now, the material will reach the finishing mill at a higher temperature which reduces its deformation resistance resulting in a reduction in the amount of deformation energy required in the finishing mill. Achievements: The covering hoods in the cogging train area of the hot wide strip mill are operating since 14.09.1988 and they are used permanently. It came to light there were no problems with the hood design as well as with the insulating material. The expected improvement on rolling has been reached. So far, it has only been possible to roughly estimate the electrical energy savings, since the time the covering hoods were installed, the levels at the specific energy consumption have been reduced by approx. 4 per cent as predicted.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Dämmstoff ? Stahlindustrie ? Bremen ? Abwärmenutzung ? Pflanzensamen ? Temperaturverteilung ? Wärmedämmung ? Wärmestrahlung ? Wasserdampf ? Spezifischer Energieeinsatz ? Energieverlust ? Hydraulik ? Wärme ? Strahlung ? Mühle ? Produktionstechnik ? Energie ? Umwelttechnik ? Energieeinsparung ? Energiespeicher ? Energietechnik ? REACH ? Kapselung ? Energietransport ? Ofen ? Anlagenbau ? Umweltveränderung ? Heizung ? Kontinuierliches Verfahren ? Anlagenbemessung ? Wärmeverlust ? renewable sources of energy ? Warmwalzwerk ?
Region: Bremen
Bounding box: 8.83333° .. 8.83333° x 53.08333° .. 53.08333°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1987-05-01 - 1989-10-31
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