RU2720776C1 - Rotor disperser - Google Patents

Abstract

FIELD: technological processes.

SUBSTANCE: invention relates to devices for dispersion, homogenisation, grinding and mixing of materials. It can be used in agriculture, in particular animal breeding for preparation of artificial milk (milk replacer) and other industries for production of homogeneous mixture. Rotary disperser consists of inner and outer shells, having holes on side surfaces, total area of which on inner shell is greater than total area on outer shell, stator installed on round cylindrical housing, which is disk with end holes along edges for input of treated mixture and in center for input of shaft, on which is placed and fixed by nut located between shells of stator, which is disk, rotating rotor, having end holes along edges for input of treated mixture and in center for planting on shaft, and impeller in form of blades of arc-shaped shape, wherein the radial gap between the stator shells and the rotor blades does not exceed 0.5 mm, which is a rotary rotor disc having end holes at the mixture inlet edges for the treated mixture and in the center for mounting on the shaft, also has impeller in the form of arched blades installed at an angle of α not more than 12° to rotor axis, external radius R=27 mm, internal r=23 mm and edges forming teeth under central angle of not more than γ=48° to radius, simultaneously increasing both circumferential speed and effect of centrifugal forces, intensifying suction and accelerating the flow of the treated mixture, creating an enhanced effect of hydraulic impact, throwing the treated mixture to the periphery, passing through the slots between the stator and rotor shells, excluding accumulation of fat balls, thereby fine particles of the rotor blades particles are crushed.

EFFECT: invention provides higher efficiency of dispersion.

1 cl, 3 dwg

Description

The invention relates to devices for dispersion, homogenization, grinding and mixing of materials. It can be used in agriculture, in particular, animal husbandry for the preparation of artificial milk (milk replacer) and other industries to obtain a homogeneous mixture.

Known rotor-pulsation apparatus, which contains a rotor and a stator installed in the housing, on the working surfaces of which are made gear elements, which are rows concentrically arranged around the circumference, consisting of protrusions and depressions [1].

This design of the rotary pulsation apparatus allows for the dispersion, homogenization and mixing processes, can be used to structure the liquid passed through it, combines the functions of a dispersant, homogenizer and pump.

The disadvantages of this rotary pulsation apparatus are the design complexity and the fact that a pump is required to supply material inside the apparatus.

Known rotary dispersant, which consists of a rotor made in the form of a disk with blades formed by slots in the cylinder and driven into rotation by a shaft, the stator has an additional external concentric row of straightening blades covering the rotor from the outside, and the width of the radial slots between the straightening blades of the stator in several times less than their length [2].

It is suitable for use as a submersible tool inside containers, provides better dispersion of the processed material, both in a flowing medium and in containers of various technological devices.

The disadvantage of this rotary dispersant is the design complexity, large size and weight, which reduces operational reliability and increases energy costs during operation.

Known rotary dispersant consisting of a round casing with radial holes, the continuation of which is a stator, consisting of an inner and outer shell. Inside the housing is a rotor with holes and a shaft. The stator shells contain holes on the side surfaces. The rotor is located between the shells and there are end openings [3] for material intake.

In the design of this rotary dispersant, dispersion efficiency is achieved by the fact that the total area of the openings on the internal stator is larger than the total area of the openings of the external stator, which helps to create hydraulic backwater and can be used both in flowing conditions and inside the capacities of various technological devices.

The disadvantage of this rotary dispersant is that although the dispersion process occurs in two stages, but due to the imperfect design of the rotor, insufficiently strong suction of the processed product greatly reduces the force of water hammer, which in turn contributes to the accumulation of fat globules to a certain extent.

This rotary dispersant is the closest in technical essence and the achieved result (prototype).

The objective of the invention is to increase the dispersion efficiency.

The problem is solved by the following set of features of the proposed rotary dispersant.

The proposed rotary dispersant consists of having an inner and outer shell, containing holes on the side surfaces, the total area of which on the inner shell is greater than the total area on the outer shell, mounted on a round cylindrical stator housing, which is a disk with end holes at the edges for the input of the mixture to be processed and in the center for the input of the shaft on which it is mounted and fixed with a nut located between the stator shells, which is a disk with a rotating rotor having end openings at the edges for the input of the treated mixture and in the center for planting on the shaft, also an impeller in the form of arched blades, this, the radial clearance between the stator shells and the rotor blades does not exceed 0.5 mm.

Moreover, in contrast to the known in the proposed rotary dispersant, the technical result is achieved by the fact that the disk is a rotating rotor having end openings at the edges for the entrance of the processed mixture and in the center for planting on the shaft, as well as an impeller in the form of arcuate blades mounted under angle α of not more than 12 ° to the axis of the rotor, outer radius R = 27 mm, inner radius r = 23 mm and the edges forming the teeth at a central angle of not more than γ = 48 ° to the radius, while increasing both the peripheral speed and the effect of centrifugal forces, enhances the suction and acceleration of the flow of the processed mixture creating an enhanced effect of hydraulic shock, discarding the processed mixture to the periphery passing through the cracks between the stator and rotor shells eliminating the accumulation of fat globules, thereby finely dispersed particles are crushed by the rotor blades, which greatly increases the dispersion efficiency.

The signs of the proposed rotary dispersant and the resulting technical result have the following causal relationship.

Similar to the known device features of the proposed rotary dispersant, the dispersion process occurs in two stages and the total area of the holes on the internal stator is larger than the total area of the holes of the external stator, which ensures the creation of hydraulic backwater.

And the distinctive features of the proposed rotary dispersant in combination with the source and the effect of increasing the dispersion efficiency are in the following causal dependence.

The disk is a rotating rotor having end openings at the edges for the entrance of the processed mixture and in the center for planting on the shaft, as well as an impeller in the form of arcuate blades mounted at an angle α of not more than 12 ° to the axis of the rotor, with an external radius R = 27 mm, with an inner radius r = 23 mm and the edges forming the teeth at a central angle of not more than γ = 48 ° to the radius, while simultaneously increasing both the peripheral speed and the effect of centrifugal forces, it enhances the suction and acceleration of the flow of the treated mixture creating an enhanced effect of hydraulic shock, discarding the machined the mixture to the periphery passing through the cracks between the stator and rotor shells eliminating the accumulation of fat globules, thereby finely dispersed particles are crushed by the rotor blades, which greatly increases the dispersion efficiency.

The proposed rotary dispersant allows you to provide better dispersion of the processed mixture, allows you to improve the design, is used as a submersible tool eliminating the occurrence of excessive pressure on the periphery of the tanks and at the same time ensuring both the stability of the processing mode of the processed mixture and the power consumed by the dispersant.

Thus, the features of the proposed rotary dispersant are significant, and the resulting technical result solves the problem of the invention.

In FIG. 1 shows a general axonometric view of a rotary dispersant; in FIG. 2 is a perspective view of a stator; in FIG. 3 is a perspective view of a rotor.

The rotary disperser consists of having an inner 3 and an outer shell 2 containing holes 6, 7 on the side surfaces, the total area of which on the inner shell 3 is larger than the total area on the outer shell 2, mounted on a round cylindrical stator housing 12, which is a disk 11 with end holes 9 along the edges for the input of the processed mixture and in the center 13 for the input of the shaft 4 on which is mounted and fixed with a nut 10 located between the shells of the stator 3, 2, which is a disk rotating rotor 1 having end holes 8 along the edges for the input of the processed mixture and in the center 14 for planting on the shaft 4, as well as an impeller in the form of arched blades 5, installed at an angle α of not more than 12 ° to the axis of the rotor, with an external radius of R = 27 mm, an internal radius of r = 23 mm and edges forming teeth at a central angle no more than γ = 48 ° to the radius.

Rotary dispersant operates as follows. The capacity (in Fig. Not shown) in which the rotary dispersant is installed is filled with the mixture to be processed so that its level is higher than the inner shell 3 and the outer shell 2 containing holes 6, 7 on the side surfaces, the total area of which on the inner shell 3 is greater than the total area on the outer shell 2 installed on the round cylindrical stator housing 12, which is a disk 11 with end openings 9 at the edges for the input of the processed mixture and in the center 13 for the input of the shaft 4. By means of a shaft connected to an electric motor (not shown in Fig.) 4, driven into rotational motion, mounted on the shaft 4 and secured by a nut 10, located between the stator shells 3, 2, which is a disk rotating rotor 1 having end holes 8 at the edges for the entrance of the processed mixture and in the center 14 for mounting on the shaft 4, and also an impeller in the form of arcuate blades 5 mounted at an angle α of not more than 12 ° to the axis of the rotor, with an external radius of R = 27 mm, an inner radius of r = 23 mm and the edges forming the teeth at a central angle of not more than γ = 48 ° to the radius. This, due to an increase in both peripheral speed and an increase in the effect of centrifugal forces, enhances the suction and acceleration of the flow of the treated mixture through the end openings 9 of the stator disk 11 and the end openings 8 of the disk of the rotating rotor 1, creating an enhanced effect of water hammer, discarding the processed mixture to the periphery passing through the cracks between the shells of the stator and rotor, excluding the accumulation of fat globules, finely dispersed particles are crushed by the rotor blades, which greatly increases the dispersion efficiency.

The processed mixture with ingredients due to strong absorption through the end openings 9 of the stator 11 and the end openings 8 of the disk of the rotating rotor 1 into the gap between the inner shell 3 and the rotor 1, the centrifugal force and pressure created by the blades 5 are pressed against the inner shell 3 and intensively crushed by hard edges the windows of the blades 5 themselves and the holes 7 located on the lateral surfaces of the inner shell 3, and fat droplets due to the difference in the flow rates before entering the slot between the inner shell 3 and the rotor 1 and in the slot itself, as well as under the mechanical influence of the enhanced flow and surface tension forces are divided into small particles. When the windows are blocked, a water hammer occurs, while the particles of fat and solids are dispersed. When the processed mixture passes into the gap between the outer shell 2 and the rotor 1 due to the strong rejection by the blades 5, as well as due to the difference in size of the windows 7 of the inner 3 shell and the windows 6 of the outer 2 shell, the difference in the flow rates before entering the gap between the outer shell 2 and the rotor 1 and in the slot itself increases in the direction of increase, thereby additional finely dispersed particles are crushed by the rotor blades, which greatly increases the dispersion efficiency.

Thus, the proposed rotary dispersant provides better dispersion of the processed mixture, allows you to improve the design, is used as a submersible tool eliminating the occurrence of excessive pressure on the periphery of the tanks and at the same time ensuring both the stability of the processing mode of the processed mixture and the power consumed by the dispersant.

Bibliographic data

1. Patent No. 2516146 Russian Federation, B01F 7/12., Rotary Pulse Apparatus. / V.V. Tatarinov, A.E. Lomovsky, V.P. Ivanov, A.A. Tomilov, D.E. Kapustin, I.P. Sysoev; Applicant and patent holder Federal State Military Educational Institution of Higher Professional Education "Military Aviation Engineering University" (Voronezh) of the Ministry of Defense of the Russian Federation. - 2011134397/05, declared. 08/16/2011; publ. 05/20/2014 Bull. Number 14.

2. Patent No. 2156648 Russian Federation, B01F 11/02, B01F 7/28, B06B 1/18, Rotary Disperser. / V.G. Makarenko, M.G. Makarenko, S.P. Kildyashev; Applicant and patent holder Closed Joint-Stock Company "Catalyst Company". - 99125320/12, declared. 11/30/1999; publ. 09/27/2000 Bull. Number 27.

3. Patent No. 27141 Republic of Kazakhstan, B01F 7/28, B06B 1/18, Rotary Disperser. / A.K. Kurmanov, T.I. Isintaev, K.S. Ryspaev; applicant and patent holder Republican state enterprise on the right of economic management "Kostanai State University named after A. Baitursynov" of the Ministry of Education and Science of the Republic of Kazakhstan. - 2012 / 0719.1, declared 06/18/2012; publ. 07/15/2013, bull. Number 7. (prototype).

Claims (1)

A rotary disperser, consisting of an inner and outer shell, containing holes on the side surfaces, the total area of which on the inner shell is larger than the total area on the outer shell, a stator mounted on a round cylindrical body, which is a disk with end holes at the edges for the input of the mixture to be processed and in the center for the entrance of the shaft, on which the nut located between the stator shells is mounted and fixed with a nut, which is a disk, a rotating rotor having end openings at the edges for the entrance of the processed mixture and in the center for planting on the shaft, as well as an impeller in the form of arcuate blades wherein the radial clearance between the stator shells and the rotor blades does not exceed 0.5 mm, characterized in that the disk is a rotating rotor having end openings at the edges for the entrance of the mixture to be processed and in the center for planting on the shaft, also has an impeller in the form curved blades, set angles α of not more than 12 ° to the axis of the rotor, external radius R = 27 mm, internal r = 23 mm and the edges forming the teeth at a central angle of not more than γ = 48 ° to the radius, increasing both the peripheral speed and the impact centrifugal forces, enhancing the absorption and acceleration of the flow of the treated mixture, creating an enhanced effect of water hammer, casting the treated mixture to the periphery, passing through the cracks between the shells of the stator and the rotor, eliminating the accumulation of fat globules, thereby finely dispersing particles by rotor blades, increasing the dispersion efficiency.

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