Vibrating Screen vs Trommel?

Posted in: , on 19. Feb. 2008 - 10:34

Dear Bulkoholics,

May somebody kindly advise me which one of vibrating/trommel screen is recommended in the outlet of a SAG mill (SBC circuit) with a new feed capacity around 900 mt/h copper ore with about 20% circulating load.

If a trommel is considered for the case what is the dimension of such trommel?

The circuit characteristics are as following:

SAG Mill dimension: diam. 9.8 m x length 5 m

Ore density: 2.81 t/m3

Slurry Density: 1.52 t/m3

Screen Cut Size: -5 mm

Solids wt% 53 %

Slurry t/h 2356

Water m3/h 1114

Ball Load ~6 %

Critical Speed 77 %

Kind Regards,

B. Houdeh

Typically Utilize Vibrating Screen

Erstellt am 21. Feb. 2008 - 04:38

see sample circuit FYI

Attachments

grinding+and+crushing+circuit (JPG)

Best Regards, George Baker Regional Sales Manager - Canada TELSMITH Inc Mequon, WI 1-519-242-6664 Cell E: (work) [email]gbaker@telsmith.com[/email] E: (home) [email] gggman353@gmail.com[/email] website: [url]www.telsmith.com[/url] Manufacturer of portable, modular and stationary mineral processing equipment for the aggregate and mining industries.

Re: Typically Utilize Vibrating Screen

Erstellt am 23. Feb. 2008 - 08:26

Originally posted by George Baker

see sample circuit FYI

Dear Mr. Baker,

Thank you for the sample circuit.

But I'm wondering why a trommel wouldn't be recommended for the case which it's more simple, no moving/rotating parts, less maintenance, etc.?

Regards,

Babak Houdeh

Trommel

Erstellt am 23. Feb. 2008 - 08:46

Trommel vs vib screen:

We utilize trommels when we are attempting to screen out DIFFICULT NON FREE FLOWING MATERIALS.......in our area. Trommels actually have more moving parts then a vibrating screen, chains, drives, manually turning drum mechanically. We consider then much more maintenance intensive than a vibrating screen by far.

WE quite often have people having to go inside trommels.....6,7,8 foot diameter......to manually unplug, or clean the apertures which we consider undesirable and dangerous.

We would only recommend, generally a trommel where a vibrating screen can NOT be used due to a material's UNSCREENABILITY to due it being hard to screen, non free flowing.

Best Regards, George Baker Regional Sales Manager - Canada TELSMITH Inc Mequon, WI 1-519-242-6664 Cell E: (work) [email]gbaker@telsmith.com[/email] E: (home) [email] gggman353@gmail.com[/email] website: [url]www.telsmith.com[/url] Manufacturer of portable, modular and stationary mineral processing equipment for the aggregate and mining industries.