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Abstract
The swirling transport characteristics of grain particles in bulk grain pipeline after fluidization were studied. A spinning device was designed for the lateral filling pipe. The filling pipe was distributed uniformly along the circumference of the same section of the main pipe, the number was set to 3–7, and the included angles with the main pipe were 20°, 30°, and 40°, respectively. CFD-DEM was used to simulate the swirl transport of grain particles in a horizontal pipeline. The main multiphase inlet velocity was 20 m/s, and the gas velocity was 30 m/s in the side supplementary pipe. By comparing grain conveying speed, flow field pressure drop, and other indicators, it is concluded that when the number of filling pipes is 5, the spiral conveying distance is the longest, the conveying effect is good. By comparing the multiphase flow trajectory, it is concluded that the optimal spiral conveying effect is achieved when the angle between the side filling pipe and the main pipe is 30°. The experimental results show that the number of filling pipes is 5, and the conveying effect is the best when the angle between them and the main pipe is 30°, which is consistent with the simulation results
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Notes on contributors
Kun Shang
Kun Shang is a PhD candidate at Henan University of Technology, Mailing address: Henan University of Technology, Zhengzhou, Henan, China. His research interest covers pneumatic conveying.
Yongxiang Li
Yongxiang Li is professor and doctoral supervisor at Henan University of Technology. His research interest is Advanced Manufacturing Technology and Equipment His research interest is Advanced Manufacturing Technology and Equipment
Xuemeng Xu
Xuemeng Xu, Professor, master supervisor, Henan University of Technology. Mainly engaged in grain, oil and food packaging, transportation technology and equipment research
Yongyu Zhang
Yongyu Zhang, Associate professor at Henan University of Technology. His research interest covers gas-solid multiphase flow
Yingxia Zhang
Yingxia Zhang, Lecturer at Henan University of Technology. She research interest covers gas-solid multiphase flow