[Stoves] Rice hull gasifier milling rice

[Paul Olivier]

Crispin,

Rice hulls do not flow easily.
They are notorious for bridging.

Paul

On Fri, Nov 2, 2012 at 10:26 AM, Crispin Pemberton-Pigott <
crispinpigott at gmail.com> wrote:

> Dear Gasifying Friends
>
> I just stopped at a rice milling plant that is about 20 km outside
> Battambang. It processes about 1.9 tons per hour. It is all flat belt
> driven and a lot of it is made of wood.
>
> The power plant is an internal combustion engine of about 200 HP. It runs
> on gas. The gas is supplied by a rice hull gasifier at the back of the
> building where there is literally a mountain of rice hull.
>
> The gasifier looks quite modern and operates in a way that is
> day-and-night continuous. The rice hull is fed into the vertical reactor by
> an auger. The reaction zone position is not exactly constant but is
> maintained within certain limits.
>
> The ash/char is dropped off the top into a shallow pond to quench it.
>
> I see no reason why a small stove could not be operated in the same
> manner: TLUD with episodic feeding from below via a plunger of some sort.
> Rice hull flows easily. If the primary air control is adequate a range of 1
> to 4 kW would be perfect.
>
> If anyone is interested I took pictures of the whole gas system and power
> plant.
>
> Regards
> Crispin at km post 271 outside Battambang
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-- 
Paul A. Olivier PhD
27C Pham Hong Thai Street
Dalat
Vietnam

Louisiana telephone: 1-337-447-4124 (rings Vietnam)
Mobile: 090-694-1573 (in Vietnam)
Skype address: Xpolivier
http://www.esrla.com/
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