RU2511291C1 - Coarse grains disc grinder - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to feed processing shops of live farming and poultry farming complexes. Proposed grinder comprises bearing case with intake funnel. Said case houses two aligned discs facing each other by working surfaces. One of the latter is fixed at said bearing case while the other one is secured on vertical shaft. Through opening is made at fixed disc centre to communicate with aforesaid intake funnel. This grinder is equipped with assembly to adjust working clearance between said discs. Two pairs of discs are fitted on vertical shaft in parallel. Note here that separator tapered grate is arranged under the first pair of discs, its vertex facing grain board under which fitted in the second pair of discs. Fixed and moving discs have three belts of deformation: intake belt with triangular cross-section grooves with recesses facing the direction of moving disc revolution, feed belt with concentric-radial cross-section and modular belt corresponding to preset particle size arranged at one third of the disc peripheral part.

EFFECT: power savings, expanded range of particle sizes.

2 dwg

Description

The invention relates to a device for grinding feed grain and other bulk components of animal feed, can be used in feed preparation workshops of livestock and poultry complexes.

Known crusher (patent RU No. 2317144, B02C 9/00, published 02.20.2008), including a housing, a rotor, a sieve shell, made in the form of a truncated cone. The rotor is made in the form of an impeller having at least two blades having the shape of an irregular trapezoid, mounted with the possibility of rotation about the axis of the rotor in a horizontal plane.

The disadvantages of the crusher are high energy intensity and low degree of grinding material.

Known grain grinder (patent RU No. 2127034, A01F 29/00, published 03/10/1999), adopted as a prototype, which contains a housing and a disk placed in it, over which stops are installed, the disk is made in the form of a perforated plate, with a large base facing the top and the stops are rigidly connected with the inner surface of the funnel-shaped nozzle, placed with the possibility of movement in a vertical plane in the aforementioned plate, the smaller base of the plate and the end surface of the funnel-shaped nozzle are corrugated.

The disadvantages of this device are the high energy intensity, low degree of grinding of the material and the inability to obtain various grinding modules.

The technical problem is to reduce the energy intensity of the process and obtain various modules for grinding grains.

The problem is solved in that a feed grain chopper containing a base-case with a receiving funnel, inside of which a pair of discs are turned, coaxially arranged to each other by working surfaces, one of which is fixedly mounted on the base-case, and the other, movable, is mounted on a vertical to the shaft, in the center of the fixed disk, a through hole is made, communicated with the receiving funnel, equipped with a knot for adjusting the working gap between the disks, on the vertical shaft are two pairs of disks in parallel s, and below the first pair of discs is a cone-shaped separator grill, the top of which faces down to the ramp board, under which a second pair of discs is mounted. The fixed and movable disks are made with three deformation belts: a receiving belt having feeding grooves of a triangular section, facing indentations towards the possible rotation of the moving disk, a supply belt with concentric radial sections and a modular belt corresponding to a given particle size distribution, which is located on one third peripheral part of the disk.

The invention is illustrated by drawings.

Figure 1 shows a diagram of a feed grain chopper.

Figure 2 - movable disk.

The feed grain chopper (Fig. 1) comprises a base body 1, a receiving funnel 2 rigidly mounted on it, and a top 3 and bottom 4 supports of the vertical shaft 5, the first 6 and second 7 disk pairs located parallel to each other on the vertical shaft with three deformation belts (Fig. 2), a cone-shaped lattice of the separator 8, an inclined trough 9, an adjusting device 10, a drive 11, pitched boards 12.

A vertical shaft 5 is mounted inside the base-casing 1 with the possibility of rotation in the upper support 3 and the lower support 4 with the control unit 10 of the supports; a step is made above the lower support 4 of the vertical shaft 5 for connecting the drive 11. Movable disks are also rigidly fixed to the vertical shaft 5 13 (FIG. 2), the working planes of which are made with three deformation belts: a receiving belt 14 having feeding grooves of a triangular section, facing indentations towards the possible rotation of the movable disk 13, the supply belt 15 s platforms concentric radial section and a modular belt 16, located on one third of the peripheral part of the disk. Parallel to the movable disks 13, fixed disks 17 with similar deformation belts of the movable disks 13 are rigidly mounted on the base body 1.

Disk chopper feed grain works as follows.

The crushed product from the receiving funnel 2 under the action of gravity through a cylindrical hole in the fixed disk 17 enters the first pair of disks 6 located perpendicular to the axis of rotation of the vertical shaft 5. The grain enters the receiving belt 14 (figure 2), passing to the inlet belt 15, undergoes preliminary deformation and finally collapses in the modular belt 16. Then, the crushed product falls on the cone-shaped grate of the separator 8 and, passing through it, is discharged along the inclined groove 9. A large fraction that is not went through a cone-shaped lattice of the separator 8, rolls along it and gets on the second pair of disks 7 and is crushed in the same way. Similarly, the finished product is discharged along the inclined groove 9.

Thus, the feed grain chopper is capable of producing two fractions of the specified grinding modules in one cycle.

Claims (1)

A feed grain disk chopper, characterized in that it contains a housing base with a receiving funnel rigidly mounted in it, a pair of disks located coaxially inside the housing and facing each other with working surfaces, one of which is fixedly mounted on the housing base and has a center in it the hole with the receiving funnel, and the other is movable, is mounted on the drive shaft, and a cone-shaped separator grille is installed below the first pair of disks, the top of which is facing down to the ramp board, under which and a vertical shaft parallel to the first pair of disks has a similar second pair of disks installed, while the working planes of the first and second pairs of disks are made with three deformation belts: a receiving belt having feeding grooves of a triangular section, facing indentations towards the possible rotation of the movable disk, the leading belt with platforms a concentric radial section and a modular belt corresponding to the particle size distribution, which is located on one third of the peripheral part of the disk, in addition, the casing Abzhen knot regulation of the working gap between the disks.

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