Questions regarding mill design
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While reading the book on modern coal chemical engineering technologies today, I encountered a problem. In Table 2-5-20 on page 242 of the book (which lists the proportions of steel rods of different sizes for rod mills), the total for rod diameters of 125 mm is not 100, but only 91. I’m not sure which value is incorrect; I would appreciate some guidance from those who know more about this! Copy the table below: Rod diameter/mm 125(5.0'') 115(4.5'') 125(5.0'') 18 115(4.5'') 22 20 100(4.0'') 10 23 90(2.5'') 14 20 75(3.0'') 11 15 65(2.5'') 7 10 50(2.0'') 9 12 Total 100 100
I don’t know much about this topic, but based on the patterns in the data distribution, there seems to be an issue with the proportion of bars with a diameter of 4”; it’s likely not 10 but rather 19. It’s just my personal guess; I’d appreciate it if experts in the field could provide an answer.
It would be best to ask a friend from the rod mill manufacturer to answer this question
Yes, looking forward to some expert advice! I agree with Bone’s opinion; it seems that there was a problem with version 10, but it needs to be confirmed, as it’s just a guess after all!