Re: Remove Shale From Aggregate
Hello Krusher,
What are the densities of the aggregate piece and shale piece (as a lump density)? Possible solution rests in using the difference in density.
What about the relative sizes of aggregate piece and shale piece (as an average)?
Regards,
Ishwar G Mulani.
Author of Book : Engineering Science and Application Design for Belt Conveyors.
Email : parimul@pn2.vsnl.net.in
Tel.: 0091 (0)20 5882916 ■
Re: Remove Shale From Aggregate
Greetings Ishwar,
The differences in densities is slight (0.8 gm/cm3). Granite, Basalt and Quartzite makeup the bulk of the aggregate.
My concern is two products. One: Material passing a 7/8" cloth and retained on a 3/8" cloth.
Two: Material passing a 3/8 cloth and retained on a #4 cloth.
Observation has shown that when the shale fractures (through the crushing process) two surfaces remain flat. Also, on a wet conveyor belt, the surface tention of the water holds the pieces of shale. Possibly, a series of short conveyors with wipers placed so to remove the shale from the system, would work.
Any additional comments would be appreciated.
Best,
Roger ■
Remove shale from aggregate
I am looking for an inexpensive method for removing shale from (7/8"-#4) aggregate. The aggregate contains 8% shale and I would like to get that down to 1%. ■