ASKET

Rice straw report on shredding and briquetting tests case study

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Courtesy of ASKET

Date: 29.06.2011
Place: ASKET, Poznañ
Tested material: rice straw from Egypt
Technology: briquetting set BIOMASSER® SOLO-SET:

  • shredder RK 7,5kW, screen 15 mm, standard blades
  • briquetting press BIOMASSER® SOLO type BS06.

Shredding

  • Rice straw manual loading into shredder chamber
  • Chopped reed moisture content 12%
  • There was high dusting while chopping rice straw

Briquetting

  • Rod type mixing arm was applied inside the container of BIOMASSER® SOLO.
  • The rod mixing arm causes dynamic mixing of chopped straw and due to its lightness the dust is released.
  • In order to show this effect the filter bag of BIOMASSER® SOLO was taken off photo on the right.
  • The briquette move was even, regular and the briquette itself was well formed.

Briquette Weight Comparison

  • The measurement was made by weighting 1 meter of briquette having 70 mm diameter.
  • 1 meter of rice briquette weights 2,20 kg
  • 1 meter of rye straw briquette weights 2,90 kg
  • 1 meter of maize straw briquette weights 4,00 kg

Rice straw is 24% lighter than rye straw (cereal straw).

Conclusions

  • Rice straw is much lighter than rye, cereal straw.
  • This feature causes that its behavior is much different than cereal straw from the gravity point
  • of view.
  • Rice straw slower falls into the briquetting chamber and it’s prone to linger on the mixing arm inside
  • the briquetting press container.
  • The execute d tests confirmed good effect of rice straw briquetting in BIOMASSER® technology.
  • Trials were performed using mass production BIOMASSER® SOLO type BS06.

Results for rice straw:

  • low specific weight of rice straw light material
  • high dusting while shredding and briquetting
  • 1 meter of rice briquette weights 2,20 kg
  • rice straw is 24% lighter than rye straw cereal straw
  • positive result of briquetting in BIOMASSER® technology.

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