Re: Belt Bucket Elevator
As I see, the most important parameters are missing.
These are: Drum diameter and conveying speed.
The belt width is too large with 300 mm. This is valid also for the distance between the buckets (with 400 mm). ■
Re: Belt Bucket Elevator
Given the necessary concentration, coal dust in air can constitute an explosive mixture. Bucket elevators have exploded in the past with explosive air/dust mixtures and caused significant damage and loss of life.
If you are continuing to use the bucket elevator consider adding, if not already present :
1) flame resistant, anti-static belting
2) belt slip monitoring
3) belt alignment monitoring
4) explosion relief panels if the machine is outdoors away from people
5) explosion relief with flame quenching if the machine is indoors or near people
6) explosion suppression rather than explosion relief
7) isolation of the elevator to prevent propogation to equipment before and after in the event of an explosion (particularly storage bins)
It doesn't come cheap!
Or use someting completely different to elevate the material. ■
Re: Belt Bucket Elevator
Dear Mr. Hajhashemi,
We can supply you a complete engineering proposal including drawing of the elevator and offer for components if you fill in a questinonaire we will send you after receiving your e-mail.
Best regards,
Peter Fortuin
MULLER BELTEX B.V.
Solid partners for powder and bulk handling components
Ambachtsweg 28A
NL-2641 KS PIJNACKER
The Netherlands
phone: +31(0)15 369 54 44
fax: +31(0)15 369 78 64
info@mullerbeltex.com
www.mullerbeltex.com ■
Re: Belt Bucket Elevator
Dear Mr. Amir,
In general two types of bucket elevators can be applicable in your case, one is centrifugal discharge and other is continuous discharge. You have mentioned belt speed of 0.6 mps (120 fpm) and bucket spacing as 400 mm. The speed and bucket spacing do not appear to be matching to any of the above category. In case of slow speed bucket elevator of continuous bucket type, the buckets are very close-spaced about 6 mm gap between the two, so that material discharge from one bucket slides down on to the back of the earlier bucket, to drop in to discharge chute. Please check the bucket discharge situation in relation to the shape of bucket, spacing and the speed.
Regards,
Ishwar G Mulani.
Author of Book : Engineering Science and Application Design for Belt Conveyors.
Author of Book : Belt Feeder Design and Hopper Bin Silo
Advisor / Consultant for Bulk Material Handling System & Issues.
Email : parimul@pn2.vsnl.net.in
Tel.: 0091 (0)20 25882916 ■
Belt Bucket elevator
We are going to check some parameters in a Bucket Elevator design.
It is supposed to handle coal powder (0-80 micron) up to 14 m. Some modification should be considered to prevent explosion in it and I don’t know.
Also in general consideration is there any wrong parameter in the following or not?
Capacity: 6 tons/hour
conveying speed: 0.6 m/s
power: 2.2 kw
Drum Dia. : 60 mm
Case dimension: 400 x 1000mm
Bucket volume: 2.1 lit
Distance between bucket: 400 mm
Belt width: 300 mm ■