LONG PRODUCTS BULLETIN - SMS Meer GmbH

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38 Newsletter No. 3/2009 Long-product mills Universal medium-section mill – faster and more flexible Large-scale modernization at Peiner Träger completed Commissioning After a standstill period of only six weeks at Peiner Träger GmbH, Germany, the universal medium-section mill upgraded by SMS Meer has been re-opened on September 1, 2009. New CCS ® mill stand in the medium-section mill. (Source: Salzgitter AG). Production of tandem reversing mill in full swing.
For this modernization the continuous finishing train of the universal medium-section mill (UMIT) has been adapted to modern market requirements following an operating time of 35 years and approx. 16.8 million t of rolled beams and structural-steel sections. Advantageous state-of-the-art rolling technology using CCS ® mill stands. The novel universal tandem-reversing rolling technology is now applied also on this rolling plant instead of continuous finishrolling which ensures that also smaller rolling lots can be quickly and efficiently produced and that specific customer demands are fulfilled. A replacement of the rolls is easier so that beams of different dimensions and grades can be produced in succession without much loss of time. The beams will be more accurate to size and feature a very smooth surface. In the future it is possible to also roll high-grade special steel sections on the UMIT mill and to therefore gain new potential customers. All this could be achieved by applying the tandem reversing rolling technology developed by SMS Meer with universal twohigh rolling stands in CCS ® design and automatic hydraulic roll-gap control inclusive of an automatic quick program change. Flying shear and elevated roller tables. The existing flying shear for cutting the rolling stock in cooling-bed lengths has additionally been replaced by a more powerful four-crank shear. Owing to the use of elevated roller tables up- and downstream of the tandem reversing mill group, bars at a length of more than 200 m can be rolled out in spite of a limited bay length. Supply including planning and supervision. The scope of supply of SMS Meer included in addition to the supply and startup of all mechanical equipment also the supply of piping, auxiliaries and safety equipment as well as the disassembly and assembly of the facilities and the foundations. Included in our scope of supply are planning and supervision services as well as customer’s training. Altogether 3,000 t of equipment dismantled. Thanks to an extensive detail planning and partial pre-building of the roll stands on site during production, the modernization and the cold commissioning could be realized during a shutdown period of six weeks. During this time about 3,000 t of equipment was dismantled and the new facilities were mounted and tested. 25,000 t of salable products rolled after only 18 days. After the mill had been taken into operation on September 1, 2009, it could be ramped up very rapidly while a number of beams and dimensions were “entered” from the very beginning. During an initial 18 days already 15,000 t of salable products were rolled. Now, large beams with a web height of up to 450 mm. An extended product range comprises beams with a web height of up to 450 mm and a flange width of 260 mm. Channels up to 400 mm, equal and unequal angles up to 250 mm and a number of special steel sections can additionally be rolled. Modernization project of the last two years completed. In connection with the startup of the CRS ® roller straightener in 2008 the upgraded mill train is able to fulfill today’s and future market demands with regard to flexibility, profitability and quality. Due to the upgrade and the modernization of key facilities of the mill train by SMS Meer over the last two years, the modernization project “UMIT 2010“ has been completed and the technological leadership of Peiner Träger GmbH has been guaranteed. CRS ® roller straightener during commissioning. Newsletter No. 3/2009 39
Page 1 and 2: LONG PRODUCTS BULLETIN Special Edit
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Page 5 and 6: Commissioning Stahlwerk Annahütte
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Page 9 and 10: Celsa’s section mill: preventing
Page 11 and 12: Good for the environment and for re
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Page 21 and 22: Service SMS Meer (UK) Ltd.: Service
Page 23 and 24: Commissioning SMS Meer has moderniz
Page 25 and 26: Commissioning Long-product Mills Ab
Page 27 and 28: New order About 1 million t of stee
Page 29 and 30: The new pre-assembly bay. Component
Page 31 and 32: The CRS® roller straightener. To m
Page 33 and 34: The new metallurgical complex will
Page 35 and 36: Furnace and rolling mill Reheat fur
Page 37: Magnetic stacker. Saw in operation.
Page 41 and 42: Yield improved by 30 %. A benefit o
Page 43 and 44: Temperature progression for wire ro
Page 45 and 46: Automatic gage control and monitor
Page 47 and 48: The wire outlet starts with a cropp
Page 49 and 50: Annual capacity: 690,000 t of wire
Page 51 and 52: New order Capacity: 1 million t of
Page 53 and 54: Finishing area with 90-m cooling be
Page 55 and 56: Revamp with just minor production l
Page 57 and 58: Higher yield and closer length tole
Page 59 and 60: Universal rolling in the compact st

LONG PRODUCTS BULLETIN - SMS Meer GmbH

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