Re: Hokey Cokey
Originally Posted by louispanjang
This suggests a potential for the material to slump while in storage on a covered stockyard which has been designed for the 35 degree value. .It doesn't suggest that to me 
To me it suggests that when a stockpile is being created the pile may adopt an angle of repose between 25 and 35 degrees depending how it feels on the day 
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Re: Hokey Cokey
Suppose it is stacked up to the 35 degree height on Monday & then feels tired & decides to lie down at the more comfortable 25 degree posture on the next Sunday? Couldn't that be described as a slump? ■
Re: Hokey Cokey
Most of the bulk materials I've seen suffer from inertia and once piled remain as piled. They then get set in their ways and even when disturbed and dug away can be so lethargic that they don't bother to resume a lesser angle. Of course in this condition if you walk up to the dug away face it will be cussed and collapse all over your new boots, and the more obnoxious the material the more likely this is to happen. ■
Hokey Cokey
I will have a petroleum coke product to which a previous FEED study has mentioned repose between 25 & 35 degrees.
This suggests a potential for the material to slump while in storage on a covered stockyard which has been designed for the 35 degree value. Do the forum members have any advice on this topic?
The only available granulometry prediction is -50 although feed to an upstream crusher quotes: -2mm 22%; 2 to 20mm 34%; 20 to 75mm 25%, 75 to 300mm 9% & 10% larger than 300. ■