Design and Experimental Study of Potato-Soil Separation Device for Sticky Soils Condition
Source abstract
Abstract
The potato-soil separation device comprising five function areas (i.e., shearing, bending, throwing, cleaning, and conveying) was developed to address the mentioned problems (e.g., soil with high moisture content, large viscosity, and poor separation efficacy) in the harvesting process for winter idle paddy fields of Southern China. Given the kinetic analyses for the potato-soil mixture of five function areas, the crucial factors of the effect of potato-soil separation were determined. Subsequently, the orthogonal test of 4 factors and 3 levels was performed, and the percentage of small soil λ, the percentage of soil adhering to potato tuber γ, and damage rate of potato tuber K were adopted as assessment indexes. Regression analyses and programming for the orthogonal test result were conducted to optimize the device run parameters, and the optimal run parameters included the rotational speed of the soil-crushing mechanism of 84.18 r/min, linear velocity of second-stage lifting chain of 0.75 m/s, and inclination angle of lifting chain of 15.87°. The field experiments were performed with the modified potato harvester. As indicated from the result, the visible potato rate was 94.31% and damage rate of potato was 0.89%, and the requirement of the national standard was satisfied. This study presented technical feasibility data and equipment for potato-soil separation under sticky soils condition.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Soil Mechanics and Vehicle Dynamics · Agricultural Engineering and Mechanization · Soil Management and Crop Yield
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Mechanical and Electrical Engineering, Hunan Agriculture University, Changsha 410128, China
Hunan Key Laboratory of Intelligent Agricultural Machinery and Equipment, Changsha 410128, China
Funding
Hunan Provincial Natural Science Foundation of China
References (35)
Show source-provided references
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