The Milling Characteristics of Cutting Type Rice Milling Machine Depending on the Number of a Cutting Roller’s Air Vent and Blowing Velocity
2017
Cho, B.H., Chungbuk National University, Republic of Korea | Kang, S.H., Kongju National University, Republic of Korea | Won, J.H., Chungbuk National University, Republic of Korea | Lee, H.S., Chungbuk National University, Republic of Korea | Kang, T.H., Hamyany County Office, Republic of Korea | Lee, D.I., Chungbuk National University, Republic of Korea | Han, C.S., Chungbuk National University, Republic of Korea
This study aimed to identify milling characteristics depending on the number of a cutting roller’s air vent and blowing velocity to remove rice bran by the cutting type milling machine which can minimize the conventional milling process. The level of whiteness was found to be 38±0.5 in all the conditions, showing consistent whiteness levels during milling. The rice temperatures turned out to be 15.4 and 14.6℃ which were rather low-level under the conditions of the cutting roller with 3 vents and blowing velocities of 35 and 40 m/s respectively. Cracked rice ratio was 2.13% under the conditions of the cutting roller with 3 vents and a blowing velocity of 35 m/s. Broken rice ratio showed the range of 0.762-0.869%, reflecting a low level. Turbidity after milling was decreased, as blowing velocity became faster. Energy consumption for milled rice production was decreased, as blowing velocity became faster. The optimum milling condition for cutting type milling machine depending on air vent number of cutting roller and blowing velocity was found to be 3 vents and 35 m/s.
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