[font=times]ABB全廠自動化系統使巴西Alunort e工廠的生產力可達到75％，成為世界上最大的，最具先進性技術的氧化鋁精煉廠。 基于ABB獲獎系統800xA的解決方案對自動化系統進行了擴展，并為Alunorte裝備了獨特的用于控制，管理和使現場數千個設備最優化的系統。 價值為8億美元的三期擴展工程包括2個新生產線（4號和5號），此新生產線能使每年的產量從240萬噸達到420萬噸，成了世界上最大的氧化鋁精煉廠。 在與Alunorte合作過程中，ABB僅在20周內就完成了系統的試運行，使兩條生產線在記錄時間內達到很快的生產速度。通常提升整體生產力要花費好幾個月，現在由于引用此800xA系統，在12天內就能全部完成。 來僅有的一次停產（僅8個小時），從1994年起 Alunorte就沒有再停產過。 整個精煉廠包括：5條生產線，物料處理系統和一個由ABB自動化系統優化、控制和監控的海港。12年 Alunorte經理Carlos Roberto說：“ABB的控制系統致力于提高生產力，準備實現Alunorte在12年來所達到的成績。” ABB的針對此兩條新生產線整合了由11個不同生產廠家生產的35種不同的現場智能設備（保護繼電器，變頻器，過程分析器等等） 員工只需點下鼠標就可以訪問所有設備的技術和操作數據，執行高級資產管理程序，如監測每一個儀器的性能和能量損耗。 另外提供的性能包括：管理每一個項目的設備，保證最優化生產，使每一級的成本最低化。 Alunorte進一步的擴展過程已經在進行中。兩條附加生產線將在2008年中期將生產力提高到626萬噸，精煉廠將與244千米的管道相連接（在世界上第一次應用），通過此管道每年從Paragominas礬土礦運送1140萬噸礬土。 世界上空前的未曾有過的自動化工程。 ABB也是礦山和管道自動化解決方案的提供商，完成Alunorte－管道－Parogominas一條鏈形式，這也是 Alunorte由CVRD（57%）、Norsk Hydro（34%）及其它合作伙伴合資組成。Paragominas和管道都屬于CVRD.[/font] [FONT=times] original text [/FONT] [font=times] ABB automates world’s largest alumina plant [/font] [font=times][Color=#708090]An ABB plant-wide automation system has helped Alunorte Brazil boost production capacity by 75 percent and become the largest, most technologically advanced alumina refinery in the world. The solution is based on ABB’s award-winning System 800xA extended automation system and equips Alunorte with a unique capability to control, manage and optimize the plant’s thousands of field devices, regardless of manufacturer. The $800-million Phase III expansion consists of two new production lines （Nos. 4 and 5） that significantly raise capacity at the plant from 2.4 to 4.2 million tons of alumina a year, making it the largest alumina refinery in the world. Working closely with Alunorte, ABB completed the commissioning of the system in just 20 weeks, enabling the two lines to go quickly onstream and reach full production speed in record time. Ramp up to full production usually takes several months, but the unique capability of System 800xA enabled it to be completed in an unprecedented 12 days. The entire refinery – including all five production lines, the material handling systems and harbor – is controlled, monitored and optimized by ABB automation systems. With only one shutdown in 12 years （planned and for just eight hours）, Alunorte has operated at close to 100 percent availability since 1994. “The ABB control systems have contributed much to increasing production and to achieving the results obtained by Alunorte during its 12 years of operation.” Carlos Roberto Abrunheiro Trinidade Alunorte Manager The ABB solution for the two new production lines integrates 35 different types of intelligent field device （protection relays, frequency converters, process analyzers, etc） made by 11 different manufacturers. Staff can access the technical and operational data for all devices with a single click of the mouse and perform advanced asset management procedures like monitoring the performance and energy consumption of each instrument. Functions like these provide Alunorte with the ability to manage each item of equipment and ensure it is operating optimally and at a level of cost efficiency not previously possible. Further expansion of Alunorte is already underway. Two additional lines will increase production capacity to 6.26 million tons in mid-2008. The refinery will be linked by a 244-kilometer pipeline – the first of its kind in the world – through which up to 14.4 million tons of bauxite a year will be delivered from the Paragominas bauxite mine. ABB has been selected to supply complete automation solutions for both the mine and the pipeline, making the entire Alunorte –pipeline– Parogominas chain one of the largest upstream automation projects ever undertaken. Alunorte is jointly owned by CVRD （57 percent）, Norsk Hydro （34 percent）, and other partners. Paragominas and the pipeline are both owned by CVRD.[/color][/font]