• Source: Screenless hammer mill

The screenless hammer mill, like regular hammer mills, is used to pound grain. However, rather than a screen, it uses air flow to separate small particles from larger ones.
Conventional hammer mills in poor and remote areas, such as many parts of Africa, suffer from the problem that screens break easily, and cannot be easily bought, made or repaired. Thus regular hammer mills break down and fall into disuse. The screenless hammer mill uses air flow to separate small particles from larger ones, rather than a screen, and is thus more reliable.
The screenless hammer mill is claimed to be 25% cheaper and much more energy efficient than regular hammer mills, as well as more reliable.
It was designed by Amy Smith of MIT.




See also


Appropriate technology




External links


Mill Field Testing in Senegal
Necessity Is the Mother of Invention
A MacGyver for the Third World




References

Kata Kunci Pencarian:

• Screenless hammer mill
• Hammermill
• Timeline of United States inventions (after 1991)
• List of women innovators and inventors by country
• List of appropriate technology applications
• Amy B. Smith