Antworten
Re: Continous Bucket Elevator Discharge
Erstellt am
22. Jan. 2007 - 09:37
Generally when considering a bucket elevator discharge I use the factor -
K =
V ^ 2
------
g * r
where V = belt speed in m/s, g = 9.81, r = head pulley radius m
as my start point.
With spaced buckets K should probably not be less than 0.4 (but depends on the design of the head).
Your value is about 0.2 so spaced buckets are unsuitable and continuous overlapping buckets would be required. The design of the bucket should be such that the material 'pours' over the back of the previous bucket and be contained within its extended sides. Some forward projection of material may occur due to it acceleration down the bucket surface. Its probably best to set up a test to check visually as to what happens. ■
Continous bucket elevator discharge
Hello,
I need help in designing the bolt pattern of buckets (type MF) in order to prevent material packing between the bucket and belt at discharge point.
The material to handle is bentonite at 60lb/cu.ft.
Belt speed is 160 FPM
Head pulley diam. in 24''
Buckets type MF 20''x10"x11 5/8'' depth at 12''c/c
My question is what is the best location of the bolts on the bucket?
Some bucket manufacturers indicate that the bolts should be located in the middle of the bucket but I'm afraid of material packing between bucket and belt. Is that speed enough to create a little projection of the material?
Thanks,
Gruia Grigore ■