RU201599U1 - ROTARY CRUSHING MIXER - Google Patents

Abstract

The utility model relates to devices for grinding and mixing heterogeneous systems gas-liquid, liquid-liquid, liquid-solid particles by exciting oscillations of the processed mixture and creating a pumping effect. The rotary grinding mixer contains loading and unloading pipes, a drive, a stationary cylindrical body, in the volume of which perforated disks are rigidly fixed, between which a perforated disk similar in design is located, fixed on a rotating rotor. In this case, teeth are located on the lower surface of the upper stationary disk, on the upper surface of the lower stationary disk and on both surfaces of the movable disk. The teeth are made of a semicircular section, with the height of the tooth being equal to half the width of the tooth.

Description

The utility model relates to devices for grinding and mixing heterogeneous systems gas-liquid, liquid-liquid, liquid-solid particles by exciting oscillations of the processed mixture and creating a pumping effect.

A device for grinding products is known, including enclosed in a housing coaxially located on a vertical shaft, alternating annular discs with cutting bodies along the outer and inner diameters and washers alternating with these discs, as well as paddle loading and unloading impellers and an evacuating device brought to the upper part device, the upper part of the body, by means of a partition is separated from the grinding zone, and the evacuating device is located in the cavity formed by the mesh partition and the upper part of the body, and the blades of the loading impeller are made in the form of a mesh partition and are installed at an angle to the vertical shaft [A. USSR No. 710636, class. В02С 18/06, A device for grinding products / Nevarova V.E., Kortelev A.K .; Stated 06/07/76 .; Published on 25.01.1980].

The disadvantage of this device for grinding products is the complexity of the design and low productivity of the device due to the small area of grinding and processing of the medium.

The closest technical solution to the proposed utility model (prototype) is a rotary grinding mixer containing loading and unloading pipes, a drive, a stationary cylindrical body, in the volume of which perforated disks are rigidly fixed, between which a perforated disk of a similar design is located, fixed on a rotating rotor, while on the lower surface of the upper stationary disk, on the upper surface of the lower stationary disk and on both surfaces of the movable disk, teeth are welded, inclined at an angle to the surface of the disk and containing slots on the movable and stationary disks [RF Patent No. 161841, cl. В02С 7/08, Rotary grinding mixer / Laponov S.V., Shulaev N.S., Ibragimov I.G., Ivanov S.P., Bondar K.E .; Declared 11/20/2015 .; Published on May 10, 2016].

The disadvantage of this rotary grinding mixer is the increased wear of the teeth due to the appearance of cavitation when working at high speeds.

The task of the utility model is to create a new device - a rotary grinding mixer with the achievement of the following technical result: reducing the wear of the teeth when working at high speeds.

This problem is solved by the fact that a rotary grinding mixer containing loading and unloading pipes, a drive, a stationary cylindrical body, in the volume of which perforated discs are rigidly fixed, between which a perforated disc of a similar design is located, fixed on a rotating rotor, on the lower surface of the upper stationary disc , on the upper surface of the lower stationary disk and on both surfaces of the movable disk, teeth are located, while the teeth are made of a semicircular section and the height of the tooth is equal to half the width of the tooth.

FIG. 1 shows a rotary grinding mixer.

FIG. 2 shows a section of a tooth.

The rotary grinding mixer contains a loading 1 and 2 unloading nozzles, a drive (not indicated in the figure), a stationary cylindrical body 3, in the volume of which perforated disks 4, 5 are rigidly fixed with a perforated disk 6 of a similar design, fixed on a rotating rotor 7, on the lower the surface of the upper disk 4, on the upper surface of the lower disk 5 and on both surfaces of the movable disk 6, teeth of a semicircular section 8 are welded, the height of the tooth being equal to half the width of the tooth.

Rotary grinding mixer works as follows.

Under the influence of massive forces, the processed heterogeneous medium moves from the loading nozzle 1 to the unloading nozzle 2. When moving through the perforated discs 4, 5, 6, the heterogeneous medium is subjected to intense mechanical stress, while the working medium smoothly washes the surface of the tooth, which does not contribute to the creation of a critical low pressure from the back of the tooth and, as a result, is the prevention of cavitation.

The main advantages of the proposed design of a rotary grinding mixer include the following:

- multifunctionality, which is due to the possibility of grinding and mixing heterogeneous systems liquid-liquid, liquid-solid particles;

- high productivity and efficiency of the grinding and mixing process;

- high reliability of the device when operating at high speeds.

The utility model meets the criterion of "industrial applicability" and can be used in the chemical, food and paint and varnish industries for grinding and mixing heterogeneous systems gas-liquid, liquid-liquid, liquid-solid particles.

Claims (1)

Rotary grinding mixer containing loading and unloading pipes, a drive, a stationary cylindrical body, in the volume of which perforated disks are rigidly fixed, between which a perforated disk of a similar design is located, fixed on a rotating rotor, while on the lower surface of the upper stationary disk, on the upper surface of the lower stationary disk and on both surfaces of the movable disk there are teeth, characterized in that the teeth are made of a semicircular section, while the height of the tooth is equal to half the width of the tooth.

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