[Gasification] 1 TPH down draft gasifier - air blower
A.Saravanakumar
sara_mnes at rediffmail.com
Fri Aug 26 14:31:46 CDT 2011
Dear All,
In biomass gasification
a. 1TPH down draft gasifier 1500kg /hr air flow is needed for 1ton
of wood is gasified. So gas produced for 2500 kg /hr. Air blower
pressure is 300mm water column. Air blower CFM is 1000.
Practically, for some people using
b. The same 1TPH down draft gasifier using air blower pressure is
600 to 1000 mm water column. Air blower CFM is 2000.
Whether a / b is correct? Or not
Explain.
A. Saravanakumar
On Sat, 27 Aug 2011 00:32:22 +0530 wrote
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Today's Topics:
1. Charcoal Reduction Mill (Jeff Davis)
2. Re: Charcoal Reduction Mill (Pannirselvam P.V)
3. Re: Charcoal Reduction Mill (Mark E. Ludlow)
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Message: 1
Date: Thu, 25 Aug 2011 23:55:53 -0400
From: Jeff Davis
To: Gasification List
Subject: [Gasification] Charcoal Reduction Mill
Message-ID:
Content-Type: text/plain; charset="UTF-8"
Dear List,
What would be the best style of mill to reduce weed and soft wood
charcoal (mostly weed). This would be for charcoal Fireball production.
All advice will be appreciated.
Reduction might be 2 mm to dust. Enough dust to fill in the larger 2 mm
particles. Might be possible to have some particles larger than 2 mm.
Production is difficult for me to pin down but lets say 400 lbs/hr (180
kg/hr). More is better but less would be OK for now. The more I think
about it a lot less would work for now.
Would a farm hammer mill with cyclone bagger be a formula for a dust
storm?
Clueless,
Jeff
------------------------------
Message: 2
Date: Fri, 26 Aug 2011 01:10:33 -0300
From: "Pannirselvam P.V"
To: Discussion of biomass pyrolysis and gasification
Subject: Re: [Gasification] Charcoal Reduction Mill
Message-ID:
Content-Type: text/plain; charset="windows-1252"
Helo Jeff
Ball mill can solve the problems
On Fri, Aug 26, 2011 at 12:55 AM, Jeff Davis wrote:
> Dear List,
>
>
> What would be the best style of mill to reduce weed and soft wood
> charcoal (mostly weed). This would be for charcoal Fireball production.
> All advice will be appreciated.
>
> Reduction might be 2 mm to dust. Enough dust to fill in the larger 2 mm
> particles. Might be possible to have some particles larger than 2 mm.
>
> Production is difficult for me to pin down but lets say 400 lbs/hr (180
> kg/hr). More is better but less would be OK for now. The more I think
> about it a lot less would work for now.
>
> Would a farm hammer mill with cyclone bagger be a formula for a dust
> storm?
>
>
>
> Clueless,
>
>
> Jeff
>
>
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--
************************************************
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Research Group ,GPEC, Coordinator
Computer aided Cost engineering
DEQ ? Departamento de Engenharia Qu?mica
CT ? Centro de Tecnologia / UFRN, Lagoa Nova ? Natal/RN
Campus Universit?rio. CEP: 59.072-970
North East,Brazil
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Message: 3
Date: Thu, 25 Aug 2011 21:14:31 -0700
From: "Mark E. Ludlow"
To: "'Discussion of biomass pyrolysis and gasification'"
Subject: Re: [Gasification] Charcoal Reduction Mill
Message-ID:
Content-Type: text/plain;charset="us-ascii"
Hi Jeff,
A small hammer mill would be fine, but you need to run it under negative
pressure to keep from making a mess. Start at the back end with a small
blower good for 12" suction. Then a fake baghouse (three old Shopvacs in
parallel would be fine.) Then, a tall skinny, cyclone (high-efficiency) with
a downleg terminated with a couple butterfly valves operating 90deg out of
phase as an airlock. This dumps into your collection bag/drum.
Of course, any kind of feed auger makes things more fun. Get a fine screen
for the mill and don't push things to prevent a conflagration which would
ruin anyone's day. The cyclone is about 99% efficient by weight, so it takes
the load off your "baghouse".
An even simpler solution is a homebrew ball or rod mill.
Mark
-----Original Message-----
From: gasification-bounces at lists.bioenergylists.org
[mailto:gasification-bounces at lists.bioenergylists.org] On Behalf Of Jeff
Davis
Sent: Thursday, August 25, 2011 8:56 PM
To: Gasification List
Subject: [Gasification] Charcoal Reduction Mill
Dear List,
What would be the best style of mill to reduce weed and soft wood charcoal
(mostly weed). This would be for charcoal Fireball production.
All advice will be appreciated.
Reduction might be 2 mm to dust. Enough dust to fill in the larger 2 mm
particles. Might be possible to have some particles larger than 2 mm.
Production is difficult for me to pin down but lets say 400 lbs/hr (180
kg/hr). More is better but less would be OK for now. The more I think about
it a lot less would work for now.
Would a farm hammer mill with cyclone bagger be a formula for a dust storm?
Clueless,
Jeff
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------------------------------
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End of Gasification Digest, Vol 12, Issue 17
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