[Stoves] Rice husk briquettes in Vietnam was Re: Cuber and size of densifying machines

[Paul Anderson]

Dear Anh,

On behalf of many of us, I request that you send to us more information 
about the rice husk briquette processes and equipment and costs, etc 
that you mention are so well established in Vietnam.   This is VERY 
important and is not well known to us. Maybe there are some reports you 
could send.    Or you could ask others to assist to provide us with the 
information.

Thank you in advance.

And we are interested in getting to know your better, your employment, 
training, etc.

Paul

Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  psanders at ilstu.edu
Skype: paultlud      Phone: +1-309-452-7072
Website:  www.drtlud.com

On 3/14/2014 9:20 AM, Tuan Anh wrote:
> Robert and Richard,
>
> Vietnam used to have problem with excess rice husks at mills too, but now they all make rice husk briquette, pellets so it turn from waste to tradable goods. We have many rice husk pellets makers here for both domestic and export.
>
> As far as I know, dealing with high abarisve silica in rice husk require a much more expensive equipment. Low cost rice husk briquette machines can serve well for simple tasks such as daily cooking or simple commercial/industrial production.
>
> Anh
>
>
>
>
>
> On Mar 14, 2014 8:32 PM, Richard Stanley <rstanley at legacyfound.org> wrote:
>> Robert
>>
>> We have seen the same experience described by many in the wet processing of briquettes, but with the wet process,  it was about abrasion to the blenders and molders hands, as it is very much a hands-on process.
>> However we found a different way to handle them for our needs-- at least in Mbale Uganda in 2007.
>>
>> In Mbale, rice husks were piled several meters high and spread out over 100 meter wide mounds all from the local rice mill.
>> With the rains, these mounds would begin to decompose --more like decay-- from within, leaving large voids beneath  --and invisible on-- the surface. Many children  playing on them were reported to have fallen in and been badly burned .  We were glad to discover that this glutinous mass was an excellent binder and in-filler for the wet process briquettes The abrasive properties of the original husk were abated in the decay process as well. Rice husk blended briquettes were one variety of briquettes being made by the Uganda United Womens Association- Joint.
>>
>> The UUWA-J is  headed by Vicky Akello. She and her team are really great trainers by the way and have trained all over Uganda and western Kenya ever since we first met in 2008. A contact for Vicky is : Akello victoria <uuwaj at yahoo.com>
>>
>> Richard
>>
>>
>>
>> On Mar 6, 2014, at 11:28 PM, robdeutsch44 wrote:
>>
>> Rice hulls are a very difficult material to pelletize with because of the
>> high silica content makes it very abrasive on the dies and moving parts.
>> Better to use rice hulls at point of generation (the rice mill) and use bulk
>> gasifier.... Just my two cents :-)
>>
>> Robert in Cambodia
>>
>>
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