Re: Design Of Conveyor Loaders
Please clarify your definition of a "conveyor loader". ■
Re: Design Of Conveyor Loaders
A conveyor self-loader may be said to perform two different operations: (1) raking up or scooping up of the material heaped on the ground, decking, platform, etc; and (2) its conveyance to the corresponding receiver: a truck, railway car, wagon, hopper, another conveyor or stack.
I am interested only in continuous scooping feeders. ■
Re: Design Of Conveyor Loaders
Something like this maybe?
http://www.tradekey.com/productview/id/431727.htm ■
Almost
Yes, I am looking for that kind of equipment. In my case I need to reclaim from open grain piles. The size of the particles is too small to use the scooper with rotating arms. I am thing in something more similar to a sweeper or a bucket elevator. ■
Re: Design Of Conveyor Loaders
You want a front end loader!
Load directly into trucks, load into a hopper on a mobile belt conveyor!
Total flexibility. ■
Re: Design Of Conveyor Loaders
Front end bucket loaders have maintenance problems and aren't the most efficient alternative.
A combination of two or three belt conveyors and a conveyor-loader allows to get almost anywhere with a lower energy consumption. ■
Re: Design Of Conveyor Loaders
Anything has maintenance problems if they're not looked after 
You're now into bespoke equipment so you'll need to be more specific about capacity, store layout and functional requirements. With the lack on anything more definitive I'd suggest considering an open ended en-masse (or Redler®) elevator fed by two gathering screw conveyors, one each side to cover a wide swathe of your flat store. The screws feed the elevator's open inlet and the grain discharges into a series of belt conveyors that you can link as you wish. ■
Re: Design Of Conveyor Loaders
In the case of hydraulic loaders the complaint is about how the cylinders get damaged by the jerking motion required to completely empty the bucket when loading trucks or other elevated equipment.
I was thinking of a similar solution using cleated belts. Is it possible to load a drag conveyor at the head? Doesn't it cause problems in the sprocket? ■
Mi Pobre Grain Again !
Por favor; Esta es no grande problema.
No point in reinventing the wheel when you can obtain portable grain vacuum system at much less cost than designing a reclaimer which you could purchase from Morbark Inc. with ease or buy several portable grain vacuums from walinga rated for ship unloading at 120 tons per hour the model is the Walinga 8614SU Ultra Vac
no point in reinventing El Bolo when it already works well due to simple physics.
The ship unloader uses the six laws of gasses to their ultimate advantage
Buenas Noches,
lzaharis
Attachments
shipunloader_brochure_jmb (PDF)
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Re: Design Of Conveyor Loaders
I am a distributor of Christianson and I have the capability to design and build pneumatic systems myself, but power consumption and capital investments are important issues to consider here.
I am not reinventing the wheel. Conveyor loaders have existed for decades, but they just don't gain widespread use due to limited application. ■
Re: Design Of Conveyor Loaders
Originally Posted by gussosa
I've watched many front end loaders filling trucks with grain, the bucket action is smooth as the flow properties of grain mean there is no need to jerk the bucket at all to get discharge!!
As to open ended en-masse elevators, these have been produced in one form or another for over 50 years They load at the tail NOT the head so there is no sprocket ■
Re: Design Of Conveyor Loaders
The customers I have heard complaining about actuator damage handle fertilizers or wood chips.
Language problem. Sorry for the mistake.
An en-masse or drag conveyor is loaded by the tail. How would you call the "pulley" at the tail? Gear? Ok, the gear.
All the drag and en-masse conveyors I have seen are loaded short after the tail and not IN the tail itself. Would be great to know it can be done. ■
Re: Design Of Conveyor Loaders
Sorry, I thought we were talking about grain. Fertilizer and wood chips are a different matter. 
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Re: Design Of Conveyor Loaders
Yes, we were, but the applications of loader conveyors are more general. Many of my customers use the same facility for storing grain, wood and fertilizers. ■
Re: Design Of Conveyor Loaders
Multi-purpose equipment will be expensive as you need to design for the material with the worst handle-ability. But front end loaders are still the most flexible machine!.
And I'm not talking about en-masse conveyors, but en-masse elevators (there are fundamental differences. Probably the most extreme open ended en-masse elevator is used for ship unloading as shown in the attached link.
http://www.buhlergroup.com/global/do...rtalinoen.pdf
Warning, the design of en-masse elevators is NOT for beginners 
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Design of Conveyor Loaders
I am designing a conveyor loader and would like to get more information. The is something in Spivakovsky, but is just a general introduction.
Can you point me to any product manuals or brochures to use as examples?
I don't think there are any books or articles specific on this issue, but that would be great. ■