Effect of the rotational speeds of the screw conveyor and milling roller on the behaviour of grain flows in the connected chamber of a vertical “conveying-milling” rice mill

Li, Anqi; Jia, Fuguo; Han, Yingpeng; Chen, Peiyu; Zhang, Jincheng; Wang, Yinglong; Fei, Jiaming; Shen, Shaohang; Hao, Xianzhi; Feng, Wenyu

doi:10.1016/j.biosystemseng.2022.10.009

Cited by 11 publications

(3 citation statements)

References 33 publications

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“…It also provides significant advantages in terms of energy consumption. In addition, similar screw conveyors in the literature are generally produced using AC/DC motors or speed-regulating motors [13][14][15]. In this study, it has been shown that screw conveyors can be produced using different power sources.…”

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confidence: 87%

Determination of the Natural Frequency Change of Different Bayburt Stone (Tüfit) Sizes During the Transportation in the Screw Conveyor

ERBAYRAK,

KIRAR

2023

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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The mechanism that carries the powder or tiny granular particles with the rotational movement of the spiral shaft is called the screw conveyor. The working principle of screw conveyors is transporting dust particles due to rotating the screw shaft placed in a cylindrical pipe with engine power. The transport process transfers the powder particles to the conveyor from the feed pipe at the top of the mechanism to the wings (helix) of the helix shaft. In this study, a scaled prototype of the screw conveyor was produced. Different Bayburt stone (Tüfit) sizes were transported utilizing the prototype, and natural frequency changes were measured during transportation. Consequently, it is observed that the different micron sizes of stone particles affect the natural frequency of the screw conveyor.

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confidence: 87%

Determination of the Natural Frequency Change of Different Bayburt Stone (Tüfit) Sizes During the Transportation in the Screw Conveyor

ERBAYRAK,

KIRAR

2023

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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“…However, when the value of transfer number is higher than 1.25, the amount of paddy transferred is reduced. It is noted that this phenomenon is closely related to the speed of the conveyor belt [5] .…”

Section: -Rice Cracksmentioning

confidence: 99%

Study of mechanical damage of paddy(rice) during drying in the device

Bekkulov,

Aliyev,

Rakhmonkulov

et al. 2024

E3S Web of Conf.

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The article presents the results of the research conducted by the authors on the study of the mechanical damage of paddy (rice) passing through the screw conveyor of the mobile rice drying device. The study of the mechanical damage of paddy (rice) makes it possible to make recommendations to increase the amount of rice, which is a useful product, obtained as a result of mechanical processing of dried rice. 3 batches of 100 grains were taken from the pile paddy. The amount of mechanically damaged rice was determined as a percentage of 100 grains of paddy and the average value was obtained for 3 batches. When the number of revolutions of the screw shaft is 50 min-1, the mechanical damage of paddy (rice) is small, but the transportation of rice in the screw conveyor is found to be reduced. When the number of revolutions of the screw shaft is 200 min-1, the mechanical damage of rice (rice) is high, but the transportation of rice in the screw conveyor is found to be increased.

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“…Quantitative analysis of mixing process and particle motion law is the theoretical basis for structural design and parameter optimization of germinated brown rice tanks [14] . In using the discrete element method to study and analyze the mixing of particles in the mixer, many scholars study the hybrid conditions of rotating the particles in the rotating drum through the discrete element method [15,16] , divide the mixing area in the particles system in the drum, and explore the impact of speed and filling on hybrid performance [17,18] . For example, Li et al [19] utilized numerical simulation methods to change the rotating drum size, rotational speed, particle filling level and other conditions to predict the mixing flow behavior of particles in the drum.…”

Section: Introductionmentioning

confidence: 99%

Discrete element simulation of the grain mixing law in brown rice germination device

Yan,

Xie,

Bai

et al. 2024

International Journal of Agricultural and Biological Engineering

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The discrete element method (DEM) was used in this study to numerically simulate the mixing process and motion law of particles in brown rice germination device. And the reliability of simulation experiments was verified through physical experiments. In the discrete element simulation experiment, there were three mixing stages in the mixing process of the particles. The particle motion conditions at different rotational speeds were rolling, cascading, cataracting and centrifuging. The lower the filling degree, the higher the particle mixing efficiency. The radial trajectory of the particles was approximated as an elliptical helix that continuously shrank towards the axis. The research results indicated that under the same speed and filling conditions, the motion of brown rice particles in both the simulated and physical test environments is rolling and the drop height is the same.

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Effect of the rotational speeds of the screw conveyor and milling roller on the behaviour of grain flows in the connected chamber of a vertical “conveying-milling” rice mill

Cited by 11 publications

References 33 publications

Determination of the Natural Frequency Change of Different Bayburt Stone (Tüfit) Sizes During the Transportation in the Screw Conveyor

Determination of the Natural Frequency Change of Different Bayburt Stone (Tüfit) Sizes During the Transportation in the Screw Conveyor

Study of mechanical damage of paddy(rice) during drying in the device

Discrete element simulation of the grain mixing law in brown rice germination device

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