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Iron & steel processing

Iron & steel processing

  • Condebelt drying for pulp and paper industry

    Type: 
    Technology
    Sectors:
    Objective:

    The Condebelt drying process was patented in 1975. The Condebelt drying process was originally created to increase drying rates of paper. Condebelt drying produces approximately 10-15 times higher drying rates than conventional cylinder drying. These higher drying rates are achieved by higher contact temperatures, higher pressing between the hot surface and paper and relatively low thermal resistance between steam and paper in the Condebelt drying process.

    According to Retulainen (2001), three features of the technology warranted further investigation after the first pilot tests:

  • Direct casting for iron and steel sector

    Type: 
    Technology
    Sectors:
    Objective:

    The iron and steel sector is the second-largest industrial user of energy, consuming 616 Mtoe in 2007 and is also the largest industrial source of CO2 emissions. The five most important producers – China, Japan, the United States, the European Union and Russia – account for over 70% of total world steel production. A main technology in the iron and steel industry is the direct casting, which is the process of creating finished iron and steel products using moulds to shape the molten metal.

  • Advanced wet quenching for iron and steel sector

    Type: 
    Technology
    Sectors:
    Objective:

    The iron and steel sector is the second-largest industrial user of energy, consuming 616 Mtoe in 2007 and is also the largest industrial source of CO2 emissions. The five most important producers – China, Japan, the United States, the European Union and Russia – account for over 70% of total world steel production. A standard technique that is applied worldwide is the coke wet quenching of coke, where quenching vapors are bunkered before delivery to the atmosphere and subsequently or immediately a condensate is drawn off and cooled further.

  • Blast furnace slag granulation

    Type: 
    Technology
    Sectors:
    Objective:

    Cement is a global commodity, manufactured at thousands of plants. The industry is consolidating globally, but large international firms account for only 30% of the worldwide market. The principal and most visible market for cement is the construction industry in a multitude of applications where it is combined with water to make concrete. Most modern civil engineering projects, office buildings, apartments and domestic housing projects use concrete, often in association with steel reinforcement systems.

  • Cement production

    Type: 
    Technology
    Sectors:
    Objective:

    Cement is a global commodity, manufactured at thousands of plants. The industry is consolidating globally, but large international firms account for only 30% of the worldwide market. The principal and most visible market for cement is the construction industry in a multitude of applications where it is combined with water to make concrete. Most modern civil engineering projects, office buildings, apartments and domestic housing projects use concrete, often in association with steel reinforcement systems.

  • Clinker replacement

    Type: 
    Technology
    Sectors:
    Objective:

    Cement is a global commodity, manufactured at thousands of plants. The industry is consolidating globally, but large international firms account for only 30% of the worldwide market. The principal and most visible market for cement is the construction industry in a multitude of applications where it is combined with water to make concrete. Most modern civil engineering projects, office buildings, apartments and domestic housing projects use concrete, often in association with steel reinforcement systems.

  • Coke dry quenching for iron and steel sector

    Type: 
    Technology
    Sectors:
    Objective:

    The iron and steel sector is the second-largest industrial user of energy, consuming 616 Mtoe in 2007 and is also the largest industrial source of CO2 emissions. The five most important producers – China, Japan, the United States, the European Union and Russia – account for over 70% of total world steel production. Coke dry quenching appears as the most valid system to reduce air pollution allowing at the same time a remarkable energy recovery or saving, especially when it is associated with coal preheating.

  • Scrap preheating for iron and steel

    Type: 
    Technology
    Sectors:
    Objective:

    Steel is by far the world’s most important metal, with a global production of 1120 Million Metric ton (MMt) in 2009 (Worldsteel, 2010). In september 2010 the most important steel producers were China (42, 90 %), EU-27 (12, 79 %), Japan (8, 26 %), USA (5, 95 %) and India (5, 05 %) (Worldsteel, 2010). Figure 1 shows the development of world steel production since 1999. Clearly, China has become the dominant steel producer.

  • Smelt reduction for iron and steel sector

    Type: 
    Technology
    Sectors:
    Objective:

    The iron and steel sector is the second-largest industrial user of energy, consuming 616 Mtoe in 2007 and is also the largest industrial source of CO2 emissions. The five most important producers – China, Japan, the United States, the European Union and Russia – account for over 70% of total world steel production. Smelting reduction is a term assigned to a group of upcoming ironmaking processes which aim at overcoming certain fundamental problems of the existing blast furnace route.