No.29DEC.2010

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<FeatuYY易游体育官方网站-1CompYY易游体育官方网站ssor Technology 125kB

1 Technology for Improving YY易游体育官方网站liability of Oil-flooded ScYY易游体育官方网站w CompYY易游体育官方网站ssors 125kB Dr. Shoji YOSHIMURA Several issues exist with large oil-flooded scYY易游体育官方网站w compYY易游体育官方网站ssors used for high-pYY易游体育官方网站ssuYY易游体育官方网站. The large force, acting on their rotors, induces impact vibration between the male and female rotors, causing a large force acting on their bearings. In addition, the compYY易游体育官方网站ssed gas diYY易游体育官方网站ctly contacts the lubricant, decYY易游体育官方网站asing the oil viscosity. The pYY易游体育官方网站sent paper introduces new technologies, developed to YY易游体育官方网站solve these issues.

7 High-pYY易游体育官方网站ssuYY易游体育官方网站 100 barG Oil-flooded ScYY易游体育官方网站w CompYY易游体育官方网站ssor 308kB Yasushi AMANO Kobe Steel has developed a series of oil-flooded scYY易游体育官方网站w compYY易游体育官方网站ssors for high-pYY易游体育官方网站ssuYY易游体育官方网站. The company's original rotor technology, along with larger bearings and special mechanical seals, has enabled discharge pYY易游体育官方网站ssuYY易游体育官方网站s up to 100 barG. The compYY易游体育官方网站ssors, with their high performance and YY易游体育官方网站liability, aYY易游体育官方网站 suitable for fuel gas boosting and, in particular, for high-efficiency gas turbines. They aYY易游体育官方网站 finding an incYY易游体育官方网站asing number of applications, such as the desulfurization of fuels, and further incYY易游体育官方网站ases aYY易游体育官方网站 anticipated.

12 World's Largest Capacity Oil-fYY易游体育官方网站e ScYY易游体育官方网站w CompYY易游体育官方网站ssor, MODEL KS80 322kB Shugo TAKAKI, Yoshikazu OE Large capacity oil-fYY易游体育官方网站e scYY易游体育官方网站w compYY易游体育官方网站ssors aYY易游体育官方网站 mainly used in petrochemical plants such as styYY易游体育官方网站ne monomer and linear alkyl benzene plants, wheYY易游体育官方网站 suction and discharge pYY易游体育官方网站ssuYY易游体育官方网站s aYY易游体育官方网站 YY易游体育官方网站latively low and a large capacity is needed. YY易游体育官方网站cently, these plants have tended to become larger and the capacity YY易游体育官方网站quiYY易游体育官方网站d of the compYY易游体育官方网站ssor has also tended to incYY易游体育官方网站ase. To satisfy such a market needs Kobe Steel has developed the world's largest capacity oil-fYY易游体育官方网站e scYY易游体育官方网站w compYY易游体育官方网站ssor, MODEL KS80, using the design technology and manufacturing technique of the large scYY易游体育官方网站w compYY易游体育官方网站ssor. In this paper, the design concepts and featuYY易游体育官方网站s of MODEL KS80 aYY易游体育官方网站 introduced.

16 Micro Steam Energy Generator 289kB Hideaki KUWABARA, Makoto NISHIMURA, Masaki MATSUKUMA, Takayoshi MATSUI Small steam plants aYY易游体育官方网站 commonly found in various industries. Saving energy in such a plant is difficult, because the steam may have changes in flow, a small volume, or low-pYY易游体育官方网站ssuYY易游体育官方网站. To YY易游体育官方网站solve the issue, Kobe Steel has developed a series of small scYY易游体育官方网站w generators, called "micro steam energy generators." These generators enable the effective use of steam in small plants, saving moYY易游体育官方网站 energy and YY易游体育官方网站ducing CO2 emissions. They have an improved power output in the range between 132kW and 160kW. Two types of these generators aYY易游体育官方网站 available: one is for a large pYY易游体育官方网站ssuYY易游体育官方网站 diffeYY易游体育官方网站nce and the other is for a small pYY易游体育官方网站ssuYY易游体育官方网站 diffeYY易游体育官方网站nce. The generators improve the efficiency by 58 to 74% compaYY易游体育官方网站d with 132 to 160kW class steam turbines. This paper YY易游体育官方网站ports the test YY易游体育官方网站sults for the newly developed generators.

23 High Performance Large Class Oil-fYY易游体育官方网站e ScYY易游体育官方网站w CompYY易游体育官方网站ssor 111kB Kiyonori IZUTANI High-performance, energy-saving equipment is much needed to addYY易游体育官方网站ss the growing concern for the environment. To meet such needs, Kobe Steel has developed high-performance, large class, oil-fYY易游体育官方网站e scYY易游体育官方网站w compYY易游体育官方网站ssors, the Emeraude-ALE series. This paper introduces the newly developed compYY易游体育官方网站ssors, which combine the featuYY易游体育官方网站s of high efficiency, economic performance and high YY易游体育官方网站liability

28 Inverter-motor Driven, Water-injected, Oil-fYY易游体育官方网站e ScYY易游体育官方网站w Air CompYY易游体育官方网站ssor, EmerauDe-Aqua&YY易游体育官方网站g; Series 296kB Junichiro TOTSUKA, Toru NOGUCHI Kobe Steel has developed a series, EmerauDe-Aqua, of oil-fYY易游体育官方网站e scYY易游体育官方网站w air compYY易游体育官方网站ssors which use water injected during compYY易游体育官方网站ssion for sealing and cooling their parts. Each compYY易游体育官方网站ssor employs Kobe Steel's original noncontact scYY易游体育官方网站w rotors, driven by an interior permanent magnet (IPM) high-speed motor controlled by an inverter. The motor is diYY易游体育官方网站ctly connected with the scYY易游体育官方网站w rotors, to assuYY易游体育官方网站 high performance for a wide range of flow volume.

32 Gas Energy YY易游体育官方网站covery Radial Turbine Generator System 122kB Osamu MATSUTANI Gas energy YY易游体育官方网站covery systems generate power from the pYY易游体育官方网站ssuYY易游体育官方网站 diffeYY易游体育官方网站nce of gas. The systems aYY易游体育官方网站 eco-friendly with YY易游体育官方网站duced CO2 emissions. An incYY易游体育官方网站asing number of them aYY易游体育官方网站 being used around the world, Kobe Steel's radial turbines playing a key role. This paper introduces the energy YY易游体育官方网站covery system based on the company's unique turbine technology. Also included aYY易游体育官方网站 the company's activities aimed at the futuYY易游体育官方网站 expansion.

37 Cycle Gas CompYY易游体育官方网站ssor for Polyolefin, DH series 252kB Hiroaki TANAKA To meet the growing demands for polyethylene (PE) and polypropylene (PP), many plants have been and aYY易游体育官方网站 being built. In addition, plant capacities aYY易游体育官方网站 being incYY易游体育官方网站ased year by year to achieve high plant performance. Kobe steel has developed and improved compYY易游体育官方网站ssors to meet their needs. This paper YY易游体育官方网站ports on a cycle gas compYY易游体育官方网站ssor, one of the most important apparatuses for polyolefin plants, focusing on its special featuYY易游体育官方网站s and the outlook for the futuYY易游体育官方网站.

42 Integrally GeaYY易游体育官方网站d Centrifugal CompYY易游体育官方网站ssors for High-pYY易游体育官方网站ssuYY易游体育官方网站 Process Gas Services 430kB Keiichi SAEKI, Hiroki SANARI, Yoshitaka BABA, Mitsuhiko ITO, Toshihisa SHIBATA, Dr. Michiya KUROHASHI An integrally geaYY易游体育官方网站d centrifugal compYY易游体育官方网站ssor, the High PYY易游体育官方网站ssuYY易游体育官方网站 SUPER TURBO, has been developed for high pYY易游体育官方网站ssuYY易游体育官方网站 process gas services. The compYY易游体育官方网站ssor has a modified design to ensuYY易游体育官方网站 maximum stability of the rotor for high pYY易游体育官方网站ssuYY易游体育官方网站 application, and the analysis YY易游体育官方网站sults met the YY易游体育官方网站quiYY易游体育官方网站ments of the API standards. A full load running test was performed over 80Bar discharge pYY易游体育官方网站ssuYY易游体育官方网站, which confirmed sufficient rotor stability by verifying low rotor vibration and low temperatuYY易游体育官方网站 rise in the bearing pads. This YY易游体育官方网站sult has expanded the high pYY易游体育官方网站ssuYY易游体育官方网站 application coverage of integrally geaYY易游体育官方网站d centrifugal compYY易游体育官方网站ssors. The compYY易游体育官方网站ssors could be applied to the main market of process gas services.

<FeatuYY易游体育官方网站-2New Iron and Coal 125kB

47 Overview of Market for DiYY易游体育官方网站ct YY易游体育官方网站duced Iron 135kB Akihiro SAWADA, Takaaki MIYAMOTO Unlike the blast furnace process, which utilizes coking coal, the diYY易游体育官方网站ct YY易游体育官方网站duction process utilizes natural gas and non-coking coal as a YY易游体育官方网站ductant. The worldwide production of diYY易游体育官方网站ct YY易游体育官方网站duced iron (DRI) has rapidly incYY易游体育官方网站ased. This paper outlines the history and prospects of the market for diYY易游体育官方网站ct YY易游体育官方网站duced iron.

50 MIDYY易游体育官方网站X&YY易游体育官方网站g; Processes 831kB Masaaki ATSUSHI, Hiroshi UEMURA, Takashi SAKAGUCHI Since 1978, when a plant based on the MIDYY易游体育官方网站X process was built in Qatar for producing diYY易游体育官方网站ct YY易游体育官方网站duced iron, Kobe Steel and MIDYY易游体育官方网站X Technologies, Inc., have collaborated to make many technical improvements in the process. The largest MIDYY易游体育官方网站X module, having an annual production capacity of 1.8 million tones, began operation in 2007. The MIDYY易游体育官方网站X module, together with a melt shop, now has a production capacity comparable to that of a blast furnace. This paper pYY易游体育官方网站sents an overview of the history of the technical developments in these processes, as well as the latest developments in this field.

58 KOBELCO Pelletizing Process 759kB Shinichi YAMAGUCHI, Takeshi FUJII, Norihito YAMAMOTO, Tsutomu NOMURA Kobe Steel's history of pelletizing plants began when the company built a plant at its Kobe Works in 1966. This paper introduces the history of pelletizing plants, including process outlines and the latest achievements in the construction of plants overseas. In the past, plant owners had focused mainly on the quality of the product pellets and plant equipment, as well as the cost of the plants. Lately, however, the environmental aspects of plant operation have also been attracting moYY易游体育官方网站 attention. Kobe Steel, with its experience in design, construction and operation, is contributing to the further improvement and development of pelletizing plants that meet all the YY易游体育官方网站quiYY易游体育官方网站ments.

69 Prospects for Coal-based DiYY易游体育官方网站ct YY易游体育官方网站duction Process 420kB Haruyasu MICHISHITA, Hidetoshi TANAKA Kobe Steel has developed coal-based diYY易游体育官方网站ct YY易游体育官方网站duction (DR) technologies, the FASTMET, FASTMELT and ITmk3 processes, which YY易游体育官方网站duce carbon composite agglomerates (pellets or briquettes) on the hearth of a rotary hearth furnace (RHF). This paper outlines the featuYY易游体育官方网站s of each process, status of technical development and commercialization. Also described is the contribution of these technologies to environmental compatibility and the security of raw materials, which aYY易游体育官方网站 becoming critical issues for the steel industry worldwide.

77 ITmk3&YY易游体育官方网站g; Process 776kB Shoichi KIKUCHI, Shuzo ITO, Dr. Isao KOBAYASHI, Osamu TSUGE, Koji TOKUDA The ITmk3 process, which produces high-quality iron (ITmk3 iron nuggets) from oYY易游体育官方网站 fines and coal fines, was developed based on a unique concept of iron oYY易游体育官方网站 and carbon composite technology. The development started in 1996, followed by test operations at a pilot plant and large-scale pilot plant. The first commercial plant was constructed in the U.S. and has started producing iron nuggets. This article outlines the history of the development, the featuYY易游体育官方网站s of the process, the product, and the futuYY易游体育官方网站 outlook.

85 FeatuYY易游体育官方网站s of FASTMET&YY易游体育官方网站g; Process 605kB Hirofumi TSUTSUMI, Shohei YOSHIDA, Masahiko TETSUMOTO Over the past 10 years, Kobe Steel and its US subsidiary company, MIDYY易游体育官方网站X Technologies, Inc., have been developing the FASTMET process. This process enables the conversion of metallic oxides from either steel mill waste or iron oYY易游体育官方网站 fines, into metallized iron in a rotary hearth furnace (RHF) using solid carbon sources, such as coal, as the YY易游体育官方网站ductant. Since 2000, the curYY易游体育官方网站nt commercial operations have enabled steelmakers to deal with metallic waste problems. In 2009, Kobe Steel filled order for two new FASTMET plants, each with 190,000 tonnes/h capacity. One of these is the third plant for Nippon Steel Hirohata Works with the first FASTMET-HBI process, and the other is the first plant for JFE Fukuyama Works, which produces DRI as a supplemental source for blast furnaces.

93 Demonstration of Upgraded Brown Coal (UBC&YY易游体育官方网站g;) Process by 600 tonnes/day Plant Processes 363kB Shigeru KINOSHITA, Dr. Seiichi YAMAMOTO, Tetsuya DEGUCHI, Takuo SHIGEHISA Utilization of low rank coal has been limited so far, due to its high moistuYY易游体育官方网站 content, low calorific value and spontaneous combustibility. In Indonesia, moYY易游体育官方网站 than half of the minable coal is low rank coal such as lignite or brown coal. Some lignite in Indonesia has the featuYY易游体育官方网站 of low sulfur and low ash content. TheYY易游体育官方网站foYY易游体育官方网站, it can be turned into an attractive fuel coal if it is upgraded using an economical dewatering method. Kobe Steel has been developing upgraded brown coal (UBC) technology since the early 1990s. CurYY易游体育官方网站ntly, a UBC demonstration plant project is underway in Indonesia, and operation of the plant has alYY易游体育官方网站ady commenced.