4 posts
TimePosted 22/08/2007 20:38:52
Tanbaig says

### angle of repose

hi every body can any body answer

1. What is angle of repose and how it can be calculated?

2. What is the formulae to calculate retension time of kiln feed?

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4 posts
TimePosted 10/01/2008 17:43:41
SIMEQ says

### Re: angle of repose

The angle of repose is simply the angle between horizontal and the material after the material is put on a horizontal surfuce from one point. For many raw material its about 40 deg. Angle of drawoff is the angle between horizontal and the material if you remove material from the buttom. Normally a few degrees higher. Wet sand can get fully up to 90 deg (and higher). Water has angle of repose and drawoff equal to 0 deg. The term is commonly used when dealing with bridge reclaimers.

FLS uses the following formula for the kiln retention time:

RetentionTime=23*Length/(Rpm*Diameter*SlopePct);

best regards

best regards

108 posts
TimePosted 03/03/2009 13:58:17
Dastgir says

### Re: angle of repose

Dear SIMEQ,

What does slope Pct is here. Pl elaboate?

Regards

Gualm dastgir