Page 50 - I want to create content about steel!
P. 50

Korea Iron & Steel Association                                 Chapter 3●Tour of a steel mill


                                                                                                                           Look. It glows!                     Wow, it looks
                                                                                                                                                               like lava!                 The molten iron
                                                                                                                                                                                     in the furnace is incredibly
                                      Iron ore (sintered ore) + coal (coke) + limestone
                                                                                                                                                                                      hot. That’s why it glows.
                                                                      Hot air







                                 Iron ore (sintered ore), coke, and
                              limestone are piled layer by layer in the
                                           furnace.
                                 Then, 1,200℃ hot air is blown in.
                                When the coke that serves as fuel
                              burns, it generates heat measuring up
                              to 2,300°C, causing the iron ore to melt.
                                                                                      Molten                                         It may look like simple high heat is used to melt iron. However, the quality of the
                                                                                       iron
                                                                                                                                     steel is determined by the level and mix of fuel and blown heat. Hence, furnace
                                                     Device                                                                          work requires a great deal of skill and knowhow.
                                                   for blowing
                                                   heated air

                                                                                                                                                    Because of the high heat,
                                                                                                                                                    silver protective gear is
                                                                                                                                                    required for workers  (Scorching)
                                                                                                                                                                        (Scorching)

                                                                                                                                                                                          (Glowing)
                                                                                                                                                                                          (Glowing)
                                                                                This mill produces
                                                                                the largest volume
                                                                                  of molten iron
                                                                                   in the world.
                                                                                 Impressive, isn’t
                                                                                       it?                                    Come to think of it,
                                                                                                                             I hardly see anyone                       That’s because
                                                                                                                                working here!
                                                                                  It is!                                                                               the production
                                                                                                                                                                     processes are fully
                                                                                                                                                                       automated and
                                                                                                                           (Swish)
                                                                                                                           (Swish)                                    safety of a control
                                                                                                                                                                       controlled in the
                                                                                                                                                                           room.


           Iron ore becomes molten iron,
                                                                                                                                                            (Swish)
                                                                                                                                                            (Swish)
             which falls to the bottom.


                              Korea imports steelmaking raw materials, iron ore and coal, from other countries such as Australia,             When molten iron flows out of the furnace, the temperature inside the work area rises close to
            Tidbit            Brazil, Russia, and Canada. Steel mills are built near the seashore to receive these imports   Tidbit           300℃. Therefore, workers must wear proper gear to protect them from the heat and follow safety
                              transported by large ships.                                                                                     rules.


                                                46                                                                                                                  47
   45   46   47   48   49   50   51   52   53   54   55