Radial Stacker
Radial Stacker
(OP)
Anybody can direct me in finding some design, analysis and loading for Radial Stackers?
Is it typical having a counterweight at tail end
Is it typical having a counterweight at tail end
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
Download nowINTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: Radial Stacker
Mike Halloran
Pembroke Pines, FL, USA
RE: Radial Stacker
I was involved with the recent installation of a 36" (wide) x 100'+ (long) radial stacker for manufactured sand - and there was no counterweight, however it was a permanent installation, and the tail-end supported on a huge 5' x 6' base plate with a greased pivot plate.
Maybe temporary radial stackers use counterweights - I am not not sure.
Re design info, maybe try contacting TCI [Link] or SUPERIOR [Link] and see what information they can share.
RE: Radial Stacker
Thank you so much for sharing with me. The radial stacker that I am dealing is also permanent.
How is yours supported at middle and the cantilever part?
I don't know in my case the counterweigth is to provise dead load at the tail or for the belt to provide tension?
Anywhere I can find some structural design information and methods for radial stackers? Any book or article talk about radial stackers structural design?
Thank you
RE: Radial Stacker
Will it look like any of the ones shown in the attached? What dimensions do you need...length, height, width of belt?
https://www.google.ca/search?q=radial+stacker+conv...
BA
RE: Radial Stacker
Permanent end-support via large pivot-plate, and 4-wheeled axle main support, with a free-cantilever, as follows:
It is likely that the counterweight is for the tensioning-control of the conveyor belt.
RE: Radial Stacker
That sounds like a real interesting design project, but it also sound a lot more like a longer term design career. I suspect you aren’t going to design something better, quicker, less expensively, source all the conveyor and mech. parts, etc. when compared with the people who do that specific equipment as a business. It seems to me that you or your client may have some special needs of such a system, you may have some suggestions for design improvements to fit your specific needs, etc., but I really doubt that you will compete with a system you could buy. You may do your own foundations and general system/civil layout, but even there these special companies will probably have some helpful ideas. The structural and mechanical drawings and details should show what any counter weight is for. You can’t be having the kinds of questions you are asking the way you asked them and think you are going to serve your company or their client very well, by not getting outside design, building and erecting help on this one. And, you may learn a lot in the process, but probably not as the primary design person, there is just too much experience built into that type of equipment.
RE: Radial Stacker
I don't know that you'll find any documented structural design guides for radial stackers. I assume most designers apply their steel design code of choice and make modifications based on their judgement. The Conveyor Equipment Manucaturer's Association has a textbook that covers design of bulk material conveyors in depth and is a good place to get minimum loadings and calculate loads due to belt tensions and other mechanical items.
RE: Radial Stacker
The material is gypsum.
42" Wide x 127'-9" c/c
23ft cantilever
Its a permanent radial stacker
No mast
hengr (Structural),
I am not trying to design or compete with manufacturer just want to know the bases of design and analysis
RE: Radial Stacker
In my experience counterweights are not used for permanent stackers because the tail can be anchored to a suitable foundation.
Does your radial stacker need to raise and lower or is it a fixed height?
RE: Radial Stacker
Specific gravity of gypsum = 2.31, so material weighs about 144 pcf. Stacked 6" high, that would be a live load of 72 psf. A 42" wide belt would carry approximately 500 plf in addition to its own weight. The weight of the truss itself must be included in the truss design.
BA
RE: Radial Stacker
I'd bet it's some sort of crushed or powdered gypsum so it shouldn't be quite that heavy.
StrP88,
The angle of the idlers and the surcharge angle of the material along with the belt width dictate the cross-sectional area of the conveyor. I mentioned above that CEMA has a lot of the info, but most of the idler manufacturers have charts and diagrams like the one I found below that I found with a quick search. you can calculate the areas based off these diagrams but you can find the tables with all the combinations of belt width, idler type, and surcharge angle already calculated.