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安装天然气／氧气燃烧器后冲天炉熔炼工艺的改进——部分取代焦炭和喷射铸造粉尘

铸造设备与技术 2006年第1期 14-16,18,20,22-23页

作者： Othmar Frielingsdorf Torsten Wieting Holger Strüning Michael Lemperle Air Products gmbh Hattingen RWTH Aachen （IEHK） Aachen fritz winter eisengiesserei gmbh ＆ co kg Stadtallendorf Küttner gmbh Essen

德国铸造工业每生产一吨铸铁将产生近100公斤的粉尘，每年产生的粉尘和炉渣总量大约为520．000吨。钢铁工业也会产生大量的粉尘，如废气净化和集尘装置的过滤粉尘、转炉粉尘、轧制铁鳞和备料车间的粉尘，加上这些每年废弃物的排放量会... 详细信息

德国铸造工业每生产一吨铸铁将产生近100公斤的粉尘，每年产生的粉尘和炉渣总量大约为520．000吨。钢铁工业也会产生大量的粉尘，如废气净化和集尘装置的过滤粉尘、转炉粉尘、轧制铁鳞和备料车间的粉尘，加上这些每年废弃物的排放量会进一步增加，因此大量的粉尘有待进行再生处理。

关键词：铸造粉尘熔炼工艺冲天炉燃烧器天然气喷射焦炭氧气安装铸造工业

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NON-LINEAR LIFT-OFF AND SLIDING ANALYSIS OF PARTS OF THE CMS-DETECTOR FOR THE LOAD CASE EARTHQUAKE

NON-LINEAR LIFT-OFF AND SLIDING ANALYSIS OF PARTS OF THE CMS...

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第十八届国际反应堆结构力学大会

作者： fritz-Otto Henkel Roland Reuchlein Hubert Gerwig Woelfel Beratende Ingenieure gmbh+co. kg Hoechberg Germany Woelfel Beratende Ingenieure gmbh+co. kg Hoechberg Germany CERN European Laboratory for Particle Physics Geneva Switzerland

＜正＞ 1 INTRODUCTION CERN, the European Laboratory for Particle Physics, is currently using the largest accelerator tunnel in the world. The same tunnel will be used and re-equipped for the future Large Hadron collider （LHC） projects. Safety-related components of the LHC project as the CMS detector with its support, the HF tower and its end cap are analysed for the load case earthquake. The earthquake is defined for the site as a spectra which-after generation of time histories-is deconvoluted to the different levels of foundations and down to the tunnel in 46 m depth. The HF tower consists of 4 risers, each 18 t, a platform with 30 t and the CMS detector including shielding mass with 220 t. Risers and platform are connected by 4 swivel points,

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METHODS OF QUALIFYING ELECTRICAL CABINETS FOR THE LOAD CASE EARTHQUAKE

METHODS OF QUALIFYING ELECTRICAL CABINETS FOR THE LOAD CASE ...

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第十八届国际反应堆结构力学大会

作者： fritz-Otto Henkel Helmut Kennerknecht Thomas Haefeli Finn Jorgensen Woelfel Beratende Ingenieure gmbh+co. kg Hoechberg Germany Woelfel Beratende Ingenieure gmbh+co. kg Hoechberg Germany Gutor Electronic Ltd. Wettingen Switzerland Gutor Electronic Ltd. Wettingen Switzerland

＜正＞ 1 INTRODUCTION With the qualification of electrical system cabinets for the load case earthquake it is differentiated between the two objectives a) stability of the cabinet and b) functionality of the built-in electrical modules during and after the earthquake. There are three methods to attain these goals: analyses, tests and proof by analogy. A common method is the shaking of a complete cabinet on a shaking table, with the advantage that stability and functionality can be proved at the same time, but with the disadvantage that quite expensive test equipment, especially a multi-axle shaking table, is necessary and that

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State of the Art in High compression comminution

State of the Art in High Compression Comminution

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第三届北京国际水泥与混凝土学术会议

作者： Dr.-Ing. fritz Feige Chief Editor of "Zkg INTERNATIONAL" Bauverlag gmbh Wiesbaden Germany

Summary The idea of stressing a bulk material between two counterrotating rollers goes back to the 30s. Further investigations in the 70s confirmed that this new principle of operation was also suitable for fine comminution, and led in 1985 to the first high-pressure grinding rolls for industrial use. Since then more than 300 sets of high-pressure grinding rolls have come into use throughout the world;at present these are mainly built by Krupp-Polysius AG, KHD Humboldt Wedag AG, and also by Maschinenfabrik Koppern gmbh & co kg. The operation of high-pressure grinding rolls is modelled on that of compacting presses. Because of the application of high to very high pressures the ground material generally leaves the roller gap in compacted form;it then requires subsequent disagglomeration for which hammer mills and tube mills are particularly suitable. The proportion of fines released by disagglomeration, defined for example as the material passing 90 urn, may be as high as 40 % depending on the setting and the properties of the material. High compression comminution was first used in *** industry, mainly to increase the output of existing cement grinding plants;since then it has also proved its value in the comminution of cement raw materials, quick lime, ores, and other mineral raw materials. Depending on the technological arrangement, plant configuration and product quality required, the use of high-pressure grinding rolls can lead to increases in throughput of between 30 and 200 % and to power savings of between 15 and 50 %. In a process engineering comparison with roller grinding mills the high-pressure grinding rolls have the advantage from the energy point of view that the layers of material processed in them are subjected to substantially fixed stressing and motional control. On the other hand it is a disadvantage as far as throughput is concerned that high-pressure grinding rolls are still fixed in a speed range of 1.2 to 1.8 m/s, and that such process e

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