RU221502U1 - LOW VOLUME ROTARY DISC MIXER - Google Patents

Abstract

The utility model relates to devices for grinding and mixing heterogeneous systems of gas-liquid, liquid-liquid, liquid-solid particles by exciting vibrations of the mixture being processed and creating a pumping effect. A small-volume rotary-disc mixer contains loading and unloading pipes, a drive, a stationary cylindrical body, in the volume of which a perforated disk is mounted on a rotating rotor; on the lower surface of the cover, on the upper surface of the bottom and on both surfaces of the rotating disk there are teeth with a height equal to the thickness of the disk, in this case, the gap between the teeth of the rotating disk and the teeth of the cover and bottom should not exceed 3 mm. The technical result of the utility model is to increase the efficiency of mixing of heterogeneous liquid-liquid and gas-liquid systems.

Description

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

A device for grinding products is known, including enclosed in a housing and coaxially located on a vertical shaft, alternating ring-shaped disks with cutting elements along the outer and inner diameters and washers alternating with these disks, as well as bladed loading and unloading impellers and a vacuum device connected to the upper part 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 the cavity formed by the mesh partition and the upper part of the housing, 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.S. USSR No. 710636, class. В02С 18/06, Device for grinding products / Nevarova V.E., Kortelev A.K.; Declared 06/07/76; Published 01/25/1980.]

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

The closest technical solution to the proposed utility model (prototype) is 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 there is a perforated disk of a similar design, mounted on a rotating rotor, in the upper part of the apparatus there are two loading pipes [RF Patent No. 185838, cl. В02С7/08, Rotary grinding mixer / Laponov S.V., Timofeev A.R., Khabibullina Z.V., Ivanov S.P., Bondar K.E.; Declared 07/11/2018; Published 12/19/2018.]

The disadvantage of this rotary grinding mixer is the presence of stagnant zones between the lid and the upper fixed disk, between the bottom and the lower fixed disk, which negatively affects the efficiency of mixing heterogeneous liquid-liquid, gas-liquid systems.

The technical problem of the utility model is the creation of a new device - a low-volume rotary-disc mixer with the achievement of the following technical result: the elimination of stagnant zones in order to increase the efficiency of mixing heterogeneous liquid-liquid, gas-liquid systems.

The specified technical result is solved by the fact that in a small-volume rotary-disc mixer containing loading and unloading pipes, a drive, a stationary cylindrical body, in the volume of which a perforated disk is fixed on a rotating rotor, according to the utility model, on the lower surface of the lid, on the upper surface of the bottom and on On both surfaces of the rotating disk there are teeth with a height equal to the thickness of the disk, while the gap between the teeth of the rotating disk and the teeth of the cover and bottom should not exceed 3 mm.

The figure shows a low-volume rotary-disc mixer.

A small-volume rotary-disc mixer contains loading 1, 2 and unloading 3 nozzles, a drive (not indicated in the figure), a stationary cylindrical body 4, in the volume of which a perforated disk 6 is fixed on the rotating rotor 5, on the lower surface of the cover 7, on the upper surface of the bottom 8 and on both surfaces of the rotating disk 6 there are teeth 9 with a height equal to the thickness of the disk.

A small-volume rotary-disc mixer works as follows.

Under the influence of mass forces or artificially created pressure, the components of the processed medium are supplied through the loading pipes 1 and 2 located in the upper part of the device directly into the working area of the apparatus. Moving towards the discharge pipe 3, the medium is subjected to intense mechanical and hydrodynamic effects from the working parts. Teeth 9, located on the cover 7, bottom 8 and rotating disk 6, contribute to the creation of highly turbulent flows by organizing the collision of medium flows when the teeth of the movable disk pass over the fixed teeth. In addition, the radial arrangement of the teeth helps create a pumping effect in the device. The finished mixture is unloaded through pipe 3 directly from the working area of the apparatus.

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

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

high productivity and efficiency of the grinding and mixing process, due to the absence of stagnant zones.

Claims (1)

A rotary-disc mixer containing loading and unloading pipes, a drive, a stationary cylindrical body in which a perforated disk is mounted on a rotating rotor, characterized in that on the lower surface of the cover, on the upper surface of the bottom and on both surfaces of the rotating disk there are teeth with a height equal to thickness of the disk, while the gap between the teeth of the rotating disk and the teeth of the cover and bottom is 3 mm.