Design, Fabrication and evaluation of a rubber roll-steel huller rice milling unit
Date
1983
Abstract
The study was conducted to develop a low cost improved village milling system by utilizing the existing steel huller mill as whitener and a locally fabricated rubber roll hulling unit with a husk aspirator. The local fabrication appreciably reduced the cost of the hulling machine that is within the reach of village mill operators. The performance of the traditional one-pass steel huller mill was improved by incorporating a rubber roll for the dehusking process. An increase of about 9 percent in milling recovery and about 10 percent in the head rice recovery was realized using the improved system. Results had shown that the hulling efficiency of the rubber roll huller at the recommended operating speed of 1470/1030 rpm and rubber roll clearance of 0.75 mm to 1.0 mm ranges from 80.09% to 83.56%. The percentage milled rice and head rice recoveries for the recommended whitener shaft speed of 800 rpm ranges from 68.33% to 70.00% and 64.43% to 68.98%, respectively. This performance is undoubtedly higher that that of the one-pass steel huller mill.
Document Type
Master Thesis
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
LG 995 1983 A2 C67
Recommended Citation
Corvera, Enrico R., "Design, Fabrication and evaluation of a rubber roll-steel huller rice milling unit" (1983). Graduate Student's Output. 2142.
https://www.ukdr.uplb.edu.ph/etd-grad/2142