I would like to ask: how many steel rods should be added to the mill, and how is that determined?
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Today, steel rods are being added, and they are all thick steel rods. This is easy to understand – as the grinder operates for a long time, the thick steel rods become thinner; that’s why thicker steel rods are added. But how should this quantity be calculated? I’d appreciate it if everyone could help answer this question. Thank you! ! !
You can simply subtract the remaining amount from the designed amount, but it’s generally not possible to take into account the entire remaining amount. Therefore, we usually calculate it by multiplying the amount of short rods detected by a certain coefficient, and this coefficient is related to the operating time of the mill after the rods were added last time.
Could you please explain it again? As stated in the operating rules, the filling volume of the mill is 70 tons, and the ratio of steel rods is 3:4:3. The sizes of the steel rods are 55 mm, 65 mm, and 75 mm. Last time, we took out 20 rods that were less than 40 mm in length from the mill, while adding 20 rods of 75 mm length, 20 rods of 65 mm length, and 10 rods of 55 mm length. How is this calculation done? I hope you can answer. And how is this coefficient calculated? Thank you.
I mainly asked him, and he said he could add whatever amount he wanted; he wouldn’t give any specifics at all. So I had no choice but to turn to you for help. Thank you.
I also want to know how to add it and how to calculate it.
Regarding this issue, I hope the moderator can provide further clarification; thank you very much.
If you can’t calculate it, just bold the bar. Add as many as are drawn out (count short sticks as half, or estimate). Or, depending on the particle size distribution, determine what size of steel rods to use and how many of them.
This post was last edited by GSP on 2012-10-27 at 22:46. The wear of the steel rods inside the mill is measured, and the weight of these rods is calculated based on their diameter and length; this helps determine whether it is necessary to downgrade the grade of the steel rods, as well as to decide on the amount of rods that need to be added. In principle, the ratio of steel rods inside the mill should remain 3:4:3. Apply the required load to the steel rod.
Thank you for your answer. Wishing you success in your work, good health, and everything going well! ! !
The wear rate of the steel rods is generally 0.05 kilograms per ton of coal consumed; depending on the operating time of the mill and the particle size of the coal slurry, it is determined whether to remove or add rods； Only broken or bent steel bars can be selected.