RU230532U1 - ROTARY GRINDING MIXER - Google Patents

Abstract

The utility model relates to devices for grinding and mixing heterogeneous gas-liquid, liquid-liquid systems by exciting oscillations of the processed mixture and creating a pumping effect. A rotary grinding mixer contains loading and unloading pipes, a drive, a fixed cylindrical body, in the volume of which perforated disks are rigidly fixed, between which a perforated disk of a similar design is located, secured to a rotating rotor, wherein teeth are located on the lower surface of the upper fixed disk, on the upper surface of the lower fixed disk and on both surfaces of the movable disk, wherein when moving through the working area, the processed medium passes through annular channels between the fixed disks and the rotor, as well as in the gap between the body and the rotating disk, wherein the cross-sectional area of each channel should be equal to the area of the loading and unloading pipes.

Description

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

A device for grinding products is known, comprising annular disks with cutting members along the outer and inner diameters, placed coaxially on a vertical shaft, alternating with each other, and washers alternating with these disks, as well as bladed loading and unloading impellers and a vacuum device connected to the upper part of the device, the upper part of the housing is separated from the grinding zone by means of a partition, and the vacuum device is located in a cavity formed by a mesh partition and the upper part of the housing, wherein 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 [USSR A.S. No. 710636, cl. B02C 18/06, Device for grinding products / Nevarova V.E., Kortelev A.K.; Declared 07.06.76.; Published 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 grinding zone 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, secured to 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 [Patent of the Russian Federation No. 161841, class B02C 7/08, Rotary grinding mixer / Laponov S.V., Shulaev N.S., Ibragimov I.G., Ivanov S.P., Bondar K.E.; Declared on 20.11.2015.; Published 05/10/2016.]

The disadvantage of this rotary grinding mixer is the high hydraulic resistance to the movement of liquid through the working area of the apparatus during mixing, as well as the relatively low efficiency of mixing heterogeneous liquid-liquid and liquid-gas mixtures.

The technical problem of the utility model is the creation of a new device - a rotary grinding mixer with the achievement of the following technical result: a decrease in the hydraulic resistance of the working zone of the device, as well as an increase in the efficiency of mixing heterogeneous liquid-liquid, liquid-gas mixtures.

The specified technical result is solved in that in a rotary grinding mixer containing loading and unloading pipes, a drive, a fixed cylindrical body, in the volume of which perforated disks are rigidly fixed, between which a perforated disk of similar design is located, secured to a rotating rotor, on the lower surface of the upper fixed disk, on the upper surface of the lower fixed disk and on both surfaces of the movable disk teeth are located, according to the utility model between the upper and lower fixed disks and the rotor, as well as between the body and the movable disk, annular channels are made for moving liquid through the working area, wherein the cross-sectional area of each channel is equal to the area of the loading and unloading pipes.

Fig. 1 shows a rotary grinding mixer.

The rotary grinding mixer contains loading 1 and unloading 2 pipes, a drive (not shown in the figure), a fixed cylindrical body 3, in the volume of which perforated disks 4, 5 are rigidly fixed with a perforated disk 6 of similar design, secured to a rotating rotor 7, on the lower 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 8 are welded. Between the upper and lower fixed disks and the rotor 7, as well as between the body and the movable disk, there are annular channels 9 for moving liquid through the working area.

The rotary grinding mixer operates as follows.

Under the action of mass forces, the processed heterogeneous medium moves from the loading branch pipe 1 to the unloading branch pipe 2 through the annular channels 9. When moving through the working zone between the disks 4, 5, 6, the heterogeneous medium is subjected to intense mechanical and hydrodynamic action.

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

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

high productivity and efficiency of the mixing process;

high reliability of the device when operating at high speeds.

The utility model can be used in the chemical, food and paint industries for grinding and mixing heterogeneous gas-liquid, liquid-liquid, liquid-solid particle systems.

Claims (1)

A rotary grinding mixer comprising loading and unloading pipes, a drive, a fixed cylindrical body, in the volume of which perforated disks are rigidly fixed, between which a perforated disk of similar design is located, secured to a rotating rotor, wherein teeth are located on the lower surface of the upper fixed disk, on the upper surface of the lower fixed disk and on both surfaces of the movable disk, characterized in that between the upper and lower fixed disks and the rotor, as well as between the body and the movable disk, annular channels are made for moving liquid through the working area, wherein the cross-sectional area of each channel is equal to the area of the loading and unloading pipes.