Pneumatic separation of hulls and meats from cracked soybeans

Innocentini, M. D. M.; Barizan, Wellington S.; Alves, Maicon N.O.; Pisani, Reinaldo

doi:10.1016/j.fbp.2008.11.001

Cited by 15 publications

(7 citation statements)

References 25 publications

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“…The pneumatic separation can effectively separate the mixed particles with largely different densities and avoids solid and liquid wastes and air pollution (Ruan et al, 2017). Innocentini et al (2009) found that efficient operation of pneumatic dehullers depended on the data of both particle size distributions of hulls and meats and of their terminal velocities, and they collected and correlated such data in order to find operational conditions to optimize soybean dehulling. Feng et al (2008) investigated the effects of operating parameters on flow field characteristics and conducted experimental tests of the classification performance and flow field measurement in a turbo air classifier.…”

Section: Introductionmentioning

confidence: 99%

Pneumatic separation and recycling of anode and cathode materials from spent lithium iron phosphate batteries

Zhu

et al. 2019

Waste Manag Res

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A novel approach to recycling of copper and aluminum fragments in the crushed products of spent lithium iron phosphate batteries was proposed to achieve their eco-friendly processing. The model of pneumatic separation that determines the optimal airflow velocity was established using aerodynamics. The influence of the airflow velocity, and the density and thickness, and their ratios, of the aluminum and copper fragments on pneumatic separation were evaluated. The results show that the optimal airflow velocities of copper and aluminum fragments with and without the electrode materials are 3.27m/s and 1.67m/s, respectively. The accuracy and reliability of the present model was verified using a pneumatic separation experiment. It is concluded that graded pneumatic separation is unnecessary for the crushed particle size more than 9 mm. The experimentally determined optimal airflow velocity of the copper and aluminum fragments with and without the electrode materials is 3.3m/s and 1.7m/s, respectively. The mass fractions of the copper and aluminum fragments upon removal of the electrode materials after pneumatic separation are 97% and 96%, respectively, and both with the electrode material achieve 97.0%. The theoretically obtained optimal airflow velocities have good agreements with the experimentally obtained ones.

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Section: Introductionmentioning

confidence: 99%

Pneumatic separation and recycling of anode and cathode materials from spent lithium iron phosphate batteries

Zhu

et al. 2019

Waste Manag Res

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“…A mixture of solid particles, in order to be used in different industrial processes, is subjected to different separation processes, through which the most used is the separation on sieve. Different types of separators are used in the process of solid particle's heterogeneous mixture sieve separation [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. In order, to increase the efficiency of this process, the sieve motions can be ensured by using different devices [15][16][17][18][19][20]:…”

Section: Introductionmentioning

confidence: 99%

Influence of the Crank Mechanism Position in the Motion of an Oscillating Sieve

Moșneguțu¹,

Bârsan²,

Panainte-Lehăduș³

et al. 2021

JESR

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This article presents a study that aims to visualize the influence exerted by the position of the crank mechanism on the motion performed by the sieve supports respectively, on the displacement of an oscillating sieve. The study was oriented for a specific constructive case and involves the connecting rod position changing, the drive mechanism in relation to the horizontal, respectively at the angles 0 - 75° and -45 - 0°. Also, were identifying the variation of the angle described by the motion of the sieve support. From the obtained results analysis, it was found that in the case of 12.71° of the connecting rod angle, in relation to the horizontal, the lowest value of the angle described by the motion of the tie rod between the extreme points was obtained. Also, for the value of the connecting rod angle of approximately 6.5° equal angles described by the extreme positions of the sieve support in relation to the vertical were obtained. It is found that the variation of the connecting rod angle directly influences the variation of the angles described by the connecting rod in relation to the horizontal, the measured value being corresponding to the extreme points P1 and P2.

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“…The topic of modeling the movement of particles in a stream of fluid is a crucial one in the context of the process of pneumatic transport, as well as the purification and separation of non-homogeneous mixtures [1,2]. These processes appear in many branches of industry, such as coal mining [3], environment and waste management [4], as well as agriculture and the food industry [5][6][7], with additional weight given to this problem by the huge quantity of materials involved. Such a model, if developed properly, may then be used to bolster these processes by predicting the behavior of the processed material during their course.…”

Section: Introductionmentioning

confidence: 99%

“…The following forces act on a particle in a stream of fluid (Figure 2a): The fluid moves at a velocity vf, while the particle is described by the absolute velocity v and the relative velocity vw (Figure 2b). On the basis of Equations (5) and (6), the dynamic equations of motion assume the following form:…”

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confidence: 99%

A Model of Transport of Particulate Biomass in a Stream of Fluid

2020

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The motion of a solid particle introduced into a stream of fluid is a crucial problem in the contexts of pneumatic transport and the purification and separation of non-uniform mixtures. However, the complexity of the underlying equations of motion enforces the creation of semi-empirical models. Therefore, analysis of particle motion in a pneumatic channel was performed. To reduce the number of independent variables, several simplifying assumptions were made in regard to both the particle and the stream. The resulting model provides trajectory equations for a particle introduced into the stream at given values of the initial angle and initial velocity, which are then solved using numerical integration methods. A hodograph function was formulated on the basis of the Runge–Kutta and NDFs methods to test the correctness of the solutions under various initial parameters and to provide a universal method of solving the equations of motion. To verify the model, terminal velocities were measured and particle trajectories recorded using an original experimental stand. The predictions of the model were subsequently compared to these empirical trajectories and were found to fall within the range of uncertainty.

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Pneumatic separation of hulls and meats from cracked soybeans

Cited by 15 publications

References 25 publications

Pneumatic separation and recycling of anode and cathode materials from spent lithium iron phosphate batteries

Pneumatic separation and recycling of anode and cathode materials from spent lithium iron phosphate batteries

Influence of the Crank Mechanism Position in the Motion of an Oscillating Sieve

A Model of Transport of Particulate Biomass in a Stream of Fluid

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