Design and experimental verification of conveying device for crushed cornstalks*

doi:10.12398/j.issn.2096-7217.2021.01.001

Abstract

Abstract: In this study, considering the poor delivery uniformity, unstable feeding, and easy blockage during the delivery of crushed cornstalks, a straw conveying device was designed. A vibrating plate was combined with a shifting roller, the key structural parameters of which were determined via theoretical analysis.Based on the conveying efficiency and coefficient of variation, the primary factors of operational performance (poking roller speed, eccentric distance, and speed ratio) and the range of values for each factor were obtained via single-factor experiments using a discrete element simulation analysis software,EDEM. The optimal parameter combination was as follows: a poking roller speed of 30 r/min, an eccentric distance of 9 mm, and a speed ratio of 1. Five verification experiments were conducted using this combination.The experimental results indicated satisfactory performance of the conveying device for crushed cornstalk. The conveying efficiency was 37.09 m³/h, and the coefficient of variation was 13.77%. The experimental results were consistent with the simulation results, indicating that EDEM software optimization results are feasible and highly accurate.

Key words: cornstalk, crashed, conveying

CLC Number:

Weisong Zhao, Yongsheng Chen, Zhenwei Wang, Biao Ma, Baihe Han, Mingjiang Chen. Design and experimental verification of conveying device for crushed cornstalks^*[J]. Journal of Intelligent Agricultural Mechanization (in Chinese and English), 2021, 2(1): 1-12.

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Design and experimental verification of conveying device for crushed cornstalks^*

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