𝗙𝗼𝗿 𝗻𝗲𝘄 𝗘𝗔𝗙 𝗽𝗹𝗮𝗻𝘁𝘀: 𝗪𝗮𝘁𝗰𝗵 𝗼𝘂𝘁 𝗳𝗼𝗿 𝗽𝗼𝘁𝗲𝗻𝘁𝗶𝗮𝗹 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝘃𝗶𝘁𝘆 𝗹𝗼𝘀𝘀𝗲𝘀 𝗼𝗳 𝘁𝗵𝗲 𝗘𝗔𝗙 𝗱𝘂𝗲 𝘁𝗼 𝘂𝗻𝗰𝗼𝗻𝘀𝗶𝗱𝗲𝗿𝗲𝗱 𝗰𝗿𝗮𝗻𝗲 𝘁𝗮𝘀𝗸𝘀! This is another post for steel making professionals in the series of typical bottlenecks in decarbonization moving to hybrid steel making!

If the scrap bucket, especially the first, is charged too late to the EAF you lose production! – 𝘖𝘣𝘷𝘪𝘰𝘶𝘴𝘭𝘺, 𝘸𝘩𝘢𝘵 𝘪𝘴 𝘺𝘰𝘶𝘳 𝘱𝘰𝘪𝘯𝘵?

However, the bucket was NOT delivered late to the melt shop! – 𝘔𝘮𝘩𝘩, 𝘖𝘒.

It was ready, waiting to be picked up and charged. - 𝘚𝘰, 𝘸𝘩𝘺 𝘸𝘢𝘴 𝘪𝘵 𝘯𝘰𝘵 𝘱𝘪𝘤𝘬𝘦𝘥 𝘶𝘱 𝘵𝘩𝘦𝘯?

The cranes were busy doing other things! - 𝘋𝘰𝘪𝘯𝘨 𝘸𝘩𝘢𝘵?

Well, there are many other tasks a crane must do to keep the plant running. - 𝘞𝘩𝘪𝘤𝘩?

- 1x per day transport sample and temperature probes to restock
- 1x per day bring emergency Aluminum to the EAF tapping
- 2x per day deliver tap-hole filling mass and other refractories to the EAFs
- 1x per day move a palette with electrode pieces to the preparation table
- 3x per day pull electrode from EAF and transport it to nippling stand
- 3x per day take the ready electrode from the standby rack and put it in the EAF
- 3x per day lift electrode pieces from the preparation table and join electrodes
- 3x per day move extended electrode to standby rack
- 1x per day account for an unplanned transport

And for EVERY HEAT but depending on plant layout:
- Move the full bucket from the scrap carrier to a waiting position
- Transport the full hot metal ladle from a transfer car to the launder
- Move the empty hot metal ladle to a parking position
- Place the hot metal ladle from the parking position on the transfer car

You have not considered those in your initial concept? – 𝘞𝘦𝘭𝘭, 𝘺𝘦𝘴. 𝘉𝘶𝘵 𝘰𝘯𝘭𝘺 𝘢𝘴 𝘢𝘯 𝘢𝘷𝘦𝘳𝘢𝘨𝘦 𝘵𝘰 𝘵𝘩𝘦 𝘸𝘰𝘳𝘬𝘭𝘰𝘢𝘥.

With cranes work utilization you should NEVER work with averages! – 𝘐 𝘬𝘯𝘰𝘸 𝘣𝘶𝘵 𝘐 𝘥𝘪𝘥𝘯’𝘵 𝘸𝘢𝘯𝘵 𝘵𝘰 𝘮𝘢𝘬𝘦 𝘢 𝘱𝘳𝘰𝘱𝘦𝘳 𝘤𝘩𝘦𝘤𝘬 𝘶𝘴𝘪𝘯𝘨 𝘢 𝘴𝘪𝘮𝘶𝘭𝘢𝘵𝘪𝘰𝘯. 𝘛𝘢𝘬𝘦𝘴 𝘵𝘰𝘰 𝘮𝘶𝘤𝘩 𝘵𝘪𝘮𝘦!

Actually not. I will show you next time... (to be continued)