Development of a laboratory bench for the study of the working bodies of centrifugal fertilizer spreaders

Panferov, N.S.; Teterin, V.S.; Pekhnov, S.A.; Sukhorukov, D.G.

doi:10.33267/2072-9642-2020-7-26-29

MERA

2020

DOI: 10.33267/2072-9642-2020-7-26-29

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Development of a laboratory bench for the study of the working bodies of centrifugal fertilizer spreaders

N.S. Panferov¹,

V.S. Teterin²,

S.A. Pekhnov³

et al.

Abstract: Департамент научно-технологической политики и образования Федеральное государственное бюджетное научное учреждение «Российский научно-исследовательский институт информации и технико-экономических исследований по инженерно-техническому обеспечению агропромышленного комплекса»

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Development of a Distributor Disc for Mineral Fertilizers With Variable Application Rate

2022

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Most of the cultivated fields in Russia are acknowledged to have irregular contours, therefore mineral fertilizers are applied irrationally at the field boundaries. To eliminate this problem, the manufacturers of solid mineral fertilizer spreaders offer several technological solutions: in most cases, the application area is limited by changing the granule flight path. (Research purpose) To develop a distributor disc for a variable application area to use in mineral fertilizer spreaders equipped with variable rate application systems. (Materials and methods) The trajectory for applying mineral fertilizer granules was estimated depending on the bend angle of the distributor disk blade. We designed 3D disk models with a variable blade bend angle from 0 to 25 degrees, which were uploaded into the RealFlow program for the subsequent simulation of solid mineral fertilizer distribution. (Results and discussion) The coordinates were obtained for mineral fertilizer granules that dropped from the disk and landed on the surface. We built graphs of the mineral fertilizer distribution on the field surface. It was found out that changing the bend angle of the distributor disc blade within a 20-degree range makes it possible to vary the granule flight path within 10 meters of width and 8 meters of length, respectively. We developed a design of a mineral fertilizer distributor disk with an adjustable application rate. (Conclusions) A disk design was proposed for a smooth change in the blade bend angle within up to 25 degrees, which will allow the use of this system in conjunction with automated rate application systems, improve the distribution accuracy of solid mineral fertilizers and ameliorants in the boundary, edge and wedge-shaped sections of fields.

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Development of a Distributor Disc for Mineral Fertilizers With Variable Application Rate

2022

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Theoretical study of the working body of a centrifugal type mixing plant

Teterin,

Panfеrov,

Pehnov

et al. 2024

Agrarnaâ nauka

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Relevance. The use of fertilizers in the agro-industrial complex is an important means to ensure sustainable development, food and environmental security. The scientific application of various types of fertilizers can reduce the negative impact on natural ecosystems, as well as optimize the use of resources and take into account the individual needs of each plant. Due to the balanced composition and biological modification by chelate complexes, fertilizer mixture has increased biological efficiency and stimulate plant growth. At the same time, there is an urgent task of obtaining mixtures that have a high degree of uniformity. In this connection, the requirements for the mixing equipment are very high, since the structural and kinematic parameters are the most important factors affecting the stability of the mixing process and the uniformity of the final mixture.Methods. Based on the analysis of existing mixing plants, the authors proposed the concept of a centrifugal type mixing plant with a working body in the form of a conical surface. In the course of the research, the processes occurring during the operation of the working body, the proposed centrifugal mixer, were studied using methods of mathematical analysis, graphical and mathematical modelling.Results. As a result of the research, it was found that the greatest influence on the change in the absolute velocity of the granules is exerted by the circumferential velocity of the granules, which is largely determined by the rotation frequency and parameters of the conical surface. In turn, it was found that over time, the angle between the direction of the absolute velocity of the fertilizer granules and the forming conical surface tends to the direction of the circumferential velocity, while with increasing rotation frequency, this indicator changes more rapidly.

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Development of a laboratory bench for the study of the working bodies of centrifugal fertilizer spreaders

Cited by 2 publications

References 0 publications

Development of a Distributor Disc for Mineral Fertilizers With Variable Application Rate

Development of a Distributor Disc for Mineral Fertilizers With Variable Application Rate

Theoretical study of the working body of a centrifugal type mixing plant

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