[Bioconversion] News Paper Fireballs
Thomas Reed
tombreed at comcast.net
Wed Jan 4 08:30:43 EST 2006
Dear Les and All:
I went through these steps on a small scale to produce paper/trash
pellets for a DOE contract last year. I put newspaper down my wife's
disposal (when she was out) and collected the pulp. I could hand
squeeze it to a density of about 0.4 g/ml, about like softwoods -
adequate for many combustion situations.
I believe that a compression screw could increase the density to about
0.6 g/ml with further dewatering.
Paper is inherently dense - and sinks in water, so density > 1.0. It
has already been densified to this level in the paper making process.
It can incorporate reasonable amounts of other fuel/waste in its fibers
(including charcoal dust?).
Could you recommend a simple compression/dewatering screw?
TOM REED BEF RHF
Les Blevins wrote:
> Jeff,
>
> I have had experience working in an old fashioned paper mill here in
> Lawrence Kansas. This mill was at that time the oldest paper mill west
> of the Mississippi River. It was powered mainly by three Monarch 250
> horse-power steam engines and various electric motors up to about 250
> horse-power. This mill was shut down, dismantled and scrapped out
> sometime in the 1960s or 70s as I recall. It was quite an experience
> working there when I was a young man.
>
> Anyway his paper mill was used to make a brown paper that was used in
> the making of corrugated box board. At different times this paper mill
> used such diverse feedstocks as wheat straw, corrugated boxes and many
> other waste paper forms including newsprint. When I worked there in
> the early 1960s it used only waste paper as the primary ingredient in
> the making of new paper.
>
> The scrap paper was dumped in big rotating cookers called "rotaries"
> where it was soaked in water and the rotary was capped and rotated for
> hours on end while the contents were put under low steam pressure.
> After soaking and "cooking" for about 24 hours it was dumped out and
> augured into "beaters" where it was circulated around and around and
> beat to a "pulped" condition to get it ready to be made into paper
> once again. Recycling ain't anything new, I can attest to that.
>
> Anyway I remember you could stick your hand into the warm paper pulp
> and water in the beaters and pull out a handful of pulp and make a
> ball out of it like making a snowball and by pressing it tight in your
> hands squeeze some but not all of the water out. The balls of wet
> paper pulp when dried out would stick together very well but could
> also be easily pulled apart if one wanted to.
>
> I think these paper-pulp "snowballs" would be easy to make today; if
> one had the proper pulping equipment and a steady supply of scrap
> paper, straws, husks or other fibrous materials like switchgrass, wood
> shavings or sawdust and it wouldn't be difficult to dry them into a
> commercial fuel that could be used in heaters and boilers that could
> be either manually or automatically stoked with Bio-Balls and a wide
> variety of other fuel forms such as pellets, cubes, or briquettes made
> of similar materials.
>
> My own patented furnace design ( see www.aaecorp.com/ceo.html ) can
> use any of these fuel forms and others in either manual or automatic
> mode to heat water, spaces or processes such as the drying of
> "Bio-Ball" fuels or grain.
>
> My BlackJack furnace employs automatic pivoting grates and it is also
> designed to pyrolyze or gasify various solid fuels to produce carbon
> based fuels and synthetic gases (syngas) for use as clean renewable
> fuel in various heaters, boilers, internal combustion engines,
> combustion turbines and in various other ways.
>
> Les Blevins
> AAEC
>
>
>
>
>
>
>
> ----- Original Message ----- From: "Jeff Davis" <jeff0124 at velocity.net>
> To: <bioconversion at listserv.repp.org>
> Sent: Wednesday, December 28, 2005 9:52 PM
> Subject: [Bioconversion] News Paper Fireball
>
>
> Dear List,
>
> Today I have made my first news paper fireballs in a cement mixer with
> paddles removed. They also had some ground up switchgrass and sawdust
> mixed with the paper. The paper was first wetted then ran through a
> desposal. The fireballs are not dry yet, so only time will tell if
> they stick together.
>
> I want to skip the depsosal (grinding) process. Right now I am soaking
> a 55 gallon drum of paper in water. I hope that in time the paper will
> be reduced enough to feed straight in to the mixer.
>
> So one can make fireballs from paper!
>
>
>
> Jeff Davis
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