[Bioconversion] Re: Cast iron balls --an alternative

[Len Walde]

ideas on where to find cast iron balls?

They won't last as long, but a good replacement might be granite river 
rocks -- sort for nearly round. Yard and garden supply outlets carry them.

Len

               Sigma Energy Engineering, Inc.
Creative Problem Solving & Process Engineering
Serving Agriculture, Mining, Industry & Commerce
             through "Symbiotic Recycling" tm
                        Est. 1985

      Ph:  925-254-7633
      E-mail: sigma at ix.netcom.com

----- Original Message ----- 
From: "Jeff Davis" <jeff0124 at velocity.net>
To: <bioconversion at listserv.repp.org>
Sent: Thursday, January 19, 2006 5:37 AM
Subject: Re: [Bioconversion] Re: Fireballs, Gasifiers and Heathuts


>
> On Wednesday 18 January 2006 02:30 pm, andrew wrote:
>> Because of the chemistry of most packing plastics they simply volatilise
>>  with little char residue residue.
>
> OK.
>
>
> Now I'm remembering how the plastic wrapped around (balled up) the knife 
> of
> the disposal and thinking about the ball mill (cement mixer with two 
> rocks).
> Maybe I'll try some plastic in my "ball/cement mill". Maybe the plastic 
> will
> wrap around the balls and become grounded up. Any ideas on where to find 
> cast
> iron balls?
>
> -- 
> Jeff Davis
> Somewhere 20 miles south of Lake Erie, USA
> http://www.velocity.net/~jeff0124
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