Haiti Reconstruction

Rebuilding Haiti must start from the ground up, with agricultural education

Briquetting

Briquetting is a most affordable and sensible solution for converting fuel with minimal production costs.

Trees are limited in Haiti, there is not enough saw dust and woodchips to consider making fuel for all the cookstoves needed in Haiti.

Bundling grass is less expensive but is harder to carry and sell.  People also have problems saving enough for the rainy season.

 It is great income for the poor, saves trees, compact fuel pucks are easier to save for the rainy seasons.  When used in the best stoves it is a clean fuel that saves lives and produce biochar.

 

 Legacy Foundation's A USERS MANUAL in French:    

LA FABRICATION DE BRIQUETTES COMBUSTIBLES: UN MANUEL POUR LES UTILISATEURS

can be found under Pwogram Kreyol Tab if you are signed in as member

 

Briquetting  is the process of compacting burnables ( paper, grass, agriculture waste and forest “waste”, some plastics) into small fuel bricks. The briquettes are made in a press that uses levers or a jack to provide adequate pressure to form dense briquettes. Often this material is chopped or shredded and soaked in water before briquetting.  The generally hockey puck sized and shaped briquettes are sun dried before being used as fuel.

Vetver grass will compact well due to it's oil content and the higher levels of lignin. The grass must be dried to 15% moisture, then can be chopped up manually with a machete when making briquettes pucks. For making pellets it must be ground finer.

 

The video below shows how to build a hand cranked chopper from a machete, wood, and springs:

 

Here is a video of a silage chopper with adjustable settings. It can also be used for dried grass to produce higher quality briquettes quickly.

There is a dealer in Haiti that sells this product at 24A Autoroute de Delmas

This machine can also be used to chop grass that can be used in composting toilets rather than using sawdust.

Click Penagos to see their site

Some of the best work on briquetting is being done by the Legacy Foundation:

 

 They have developed a basic briquette press made from wood:

Click here to see another way to condense pellets by hand is called Briquetting. You can use grasses and mix in wood chips and other vegetation.

 

 

 

 

 

 

 

 

Many different crop residues and waste can be turned into fuel briquettes

 

 

Here is a video of how to make a few styles of briquette presses

 

Click here for plans to build presses and choppers from Applied Engineering

 

Click here to read BHS energy solutions Click here to see how we can use the enormous amount of vetiver grass for making grass fuel pucks!

 

 

They sell construction and operation manuals:

http://www.legacyfound.org/store/home.php?cat=4

 

Click here to learn more about briquetting

 

ECHO - Educational Concern for Hunger Organization (a great organization that everyone should know about) http://echonet.org/ has several publications on presses and briquette making:

http://echonet.org/repositories#141:d:Briquette%20Presses.08

and

http://echonet.org/repositories#140:d:Briquette%20Making.08

Just click the download button in the blue bar.

VITA - Volunteers in Technical Assistance (another great organization) has a publication on briquetting in English:

http://www.cd3wd.com/cd3wd_40/vita/briquett/en/briquett.htm

and French:

http://www.cd3wd.com/cd3wd_40/vita/briquett/FR/BRIQUETT.HTM

GTZ - German Society for Technical Cooperation (still another great organization) also has a good briquetting publication:

http://www.cd3wd.com/cd3wd_40/GATE_DL/ENV/E019E_03/EN/index.htm

Comment by Robert Fairchild on April 21, 2011 at 7:09am

Free downloads of plans for several large and small briquette presses are available at:

http://home.fuse.net/engineering/ewb_project.htm

Comment by Robert Fairchild on May 17, 2011 at 6:58pm

Plans for the hand cranked chopper are now available at the fuse website.

 

Comment by Mike Mahowald on May 18, 2011 at 9:15am
Thanks Bob just finished my micro-press and now working on chopper still looking for sharp machette going to Northern tool to see what they have tonight
Comment by Philip Wagner on May 26, 2011 at 11:40pm
Hi Mike,   I like your briquetting page. I am going to use your links to be better informed.
Comment by Robert Fairchild on June 10, 2011 at 9:00pm

http://home.fuse.net/engineering/ewb_project.htm

Dry Biomass Grinder Thrasher

Easy BioGrind©
Measured Drawing & Instructions
 
2.5 Meg PDF

Video describing the Easy BioGrind©
Dry Biomass Grinder Thrasher

The Easy BioGrind© biomass grinder was designed to grind dry biomass and to accomplish a number of goals. The objectives were the flexibility to grind a wide variety of dry biomasses, low-cost, easy to build using mostly hand tools, easy to operate, easy to maintain and require no welding.

The grinding process is accomplished by rotating a concrete grinding head with its aggregate exposed against a matching concrete grinding cup with its aggregate exposed, and introducing biomass in between the two surfaces. The grinding cup is supported with two degrees of freedom in order to absorb the movement from an out-of-round grinding head or the accidental introduction of small stones or stick into the grinding space. The grinding head is easily rotated using a hand crank at a slow speed (under 90 rpm). The unit can be powered from a bicycle, a foot powered treadle, a gasoline motor or an electric motor. Grinding pressure is easily adjusted by the weight of a few rocks in a pail.


Comment by charlie hill on July 2, 2015 at 10:07pm

coal briquetting is a way to recycle biomass residues for solid fuel. Many wastes from agricultural and forest could be processed, like branches, barks, sawdust, wood chips, stalk, cassava dregs, etc. If you want to promote  this technology to commercial scale, you need a briquetting machine. http://www.briquetter.cn/

Comment by charlie hill on December 19, 2015 at 1:02am

To get a metal piece welded, you need submerged arc welding flux. Agglomerated flux can provide a better mechanical properties than fused flux. Gongyi Yulin Welding Material Company manufacture quality welding fluxes.

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