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热词
    • 9. 发明公开
    • Process for baking carbon electrodes
    • 一种用于燃烧煤的电极的方法。
    • EP0019425A1
    • 1980-11-26
    • EP80301512.2
    • 1980-05-08
    • ALCAN RESEARCH AND DEVELOPMENT LIMITED
    • Holdner, Donald Norman
    • C04B35/52F27B13/00
    • F27B13/00C04B35/532Y02P10/262
    • A process for preheating, baking and cooling carbon bodies formed from particulate carbon admixed with a carbonaceous binder by heat exchange with gases in at least one flue (16), into which fuel for combustion is injected at one or more firing locations (5') and cooling air (42) is introduced at one or more air inlet locations (10') upstream of said firing location or locations (5') and flue gas is withdrawn from said flue (16) at a location (1') downstream from said firing location or locations (5'), said carbon bodies and said firing location or locations (5') being moved relatively to each other so that each carbon body is advanced successively through a preheating zone lying between the gas exhaust (1') and firing location or locations (5'), through a baking zone adjacent said firing location or locations (5') and a cooling zone lying between said air inlet location or first air inlet location (10') in the direction of gas flow and said firing location or locations (5') characterised in that water (45) in liquid or vapour form is introduced into said flue (16) at one or more locations (8') between said air inlet or first of said air inlets (10') and said firing location or first of said firing locations (5') in the direction of gas flow.
      The process of the invention may be carried out in a ring furnace of the horizontal-flue open-pit type or vertical-flue covered-pit type. Alternatively it may be carried out in a tunnel kiln, having heating flues in its walls.