SU1402278A1 - Centrifugal distributor of mineral fertilizers - Google Patents

Description

(21) 4167817 / 30-15

(22) 12.26.86

(46) 06/15/88. Bul No. 22

(71) Belarusian Institute of Agricultural Mechanization

(72) N.Yu.Lipsky, L.K.Rapinchuk, V.A. Chueshkov and B.M. Khudorov

(53) 631.333 (088.8)

(56) USSR Author's Certificate No. 468607, cl. A 01 C 17/00, 1973.

(54) CENTRIFUGAL DISTRIBUTOR OF MINERAL FERTILIZERS

(57) The invention relates to agricultural machinery. The purpose of the invention is to increase the uniformity of distribution of mixtures, mineral fertilizers. On disk 1, central 2 and peripheral blades (PL) 3,4,5 are rigidly fixed, PLs have different lengths, surface curvature and are set relatively central at different angles, the magnitude of which lies in the range from 0 to 90. The mixture is fed to the central blades. When the mixture moves along the central blades, it separates. After the vanishing of the central blades, the particles move in the interscapular space along different trajectories of m B, B, A. The submarines are installed on the trajectory of each component. Each component is picked up by individual SPs, moves to its end and is evenly distributed over the surface of the field. 3 il.

a $

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you vl

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FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, to machines for applying mineral fertilizers to the soil.

I The purpose of the invention is to increase the uniformity of the distribution of mixtures of mineral fertilizers.

i FIG. 1 shows centrifugal

; mineral fertilizer distributor, front view; Fig 2 is the same, top view; in fig. 3 - trajectory

absolute motion of the particles of the mixture components.

I The centrifugal distributor of mineral fertilizers contains a centrifugal disk 1, on which (Fig.1,2) central blades 2 are rigidly fixed.

Peripheral vanes 3-5 are mounted on the peripheral part of the disk 1 behind each central blade 2.

I In this case, the blades 4 are displaced relative to the blades 3, and the blades 5 - relative to the blades 4. The blades 3 are set at an angle (/ relative to the blade 2, and the blades 4 are mounted to the blade 2 at an angle C about the blades 5 at an angle. In addition, angles (j;, v, and ii j are not equal to each other. Blades 3-5 have different lengths and different curvature of the surface. Blades 5 are longer than blades 4, and blades 4

I more blades 3.

i

The central distributor of mineral fertilizers works as follows.

The material, for example, a three-component-mixture, is fed to the blades 2 of the disk 1, picked up by them and moved to the periphery under the action of a centrifugal force field. During the movement of the mixtures on the blades 2, due to the different friction particle size and other characteristics of the components, the particles are separated. Particles of different components move along the blades 2 at different relative speeds, and consequently, leave the blades 2 at different times. After the vanishing of the blades 2, the particles move in the interscapular space along different trajectories. The particles of the first component follow the trajectory A (Fig. 3), the second follow the trajectory B, and the third follow the trajectory B. As a result second

0

five

0

50

five

0 5

on the shoulder blades 4, and the third - on the shoulder blades 5.

Particles entered on the blades 3 - 5 are picked up by them and move to the periphery of the disk 1. Due to the fact that the angles of setting of the blades 3 - 5 relative to the blade 2 are different, particles of each component experience different resistance of movement, and consequently, located on the blades at different times. The particles of the first component are located on the blades 3 for a longer period of time than the particles of the second component on the blades 4, and the particles of the third component leave the blades 5 earlier than the particles of the second component of the blade 4.

As a result, the residence time of particles of different components on the disk will become equal, and this will eliminate the influence of the separation of the mixture with paddles on the uniform distribution of fertilizers over the surface of the field.

The initial speed of the particle methane is different. This is achieved by the fact that the length of the blades is different. The relative particle gathering velocity is determined by the angle of delivery of the blades 3–5 to the radius vector and their length.

Then the particles coming from the blades 3 have a lower descent rate than the particles leaving the blades 5, and have a greater converging speed than the particles converging from the blades 4 and 3.

Since the influence of separation of a mixture by a disk is eliminated, and the initial velocities of the particles of different components are different, the range of particles of the mixture is leveled, and this makes it possible to increase the uniformity of their distribution on the surface of the field.

The angles (between the blades 2 and 3 - 5 have an effect on the time spent for finding particles on the peripheral blades 3 - 5.

The magnitude of the angle V can be enclosed in the range of O - 90 °. So, if the blades 2 are mounted to the radius vector passing through their outer edge, at positive angles (i.e., the outer edge of the blade 2 is deflected in the direction of rotation of the disk 1 5 k, - 15, then to avoid separation of the mixture, the internal edge of the blades 3-5 is set to the radius vector at angles Vi, t, q; lying within O - 30 °.

0

that the blades 3-5 are located on the periphery of the disk, the angles (f, c, (f can take values from O to EO,

Claims (1)

Invention Formula The centrifugal distributor of mineral fertilizers containing a disk and blades located in its central and peripheral parts, and for each central blade with mixing one relative to another in the direction opposite to the direction of rotation, peripherals are installed. 7 / / 3 g blades located at different angles relative to the central blade, characterized in that, in order to increase the uniform distribution of the mixtures of mineral fertilizers, the disc is made rotating, while the blades are rigidly fixed on the disc, and the peripheral blades are curved with different curvature of their surface and length and mounted relative to the central blade at different angles, in the range of O - 90 °, (puP.t 5 3