UA30439U - Ultrasonic activator-mixer - Google Patents

Abstract

An ultrasonic activator-mixer, which contains vertically installed on the shock absorbers sealed container equipped with a cover, a bottom, and locking-distributing valves, a membrane with magnetostrictive transducer of ultrasonic oscillations and a concentrator of ultrasonic waves; moreover, it is equipped with vertically installed conical container with cover equipped with central inlet duct with plug cock and bottom installed on the shock absorbers, equipped with central outlet duct with plug cock, to which, with by annular sealing and shock-absorbing gasket a membrane is located horizontally, under larger base of conical container, having openings located on the perimeter of magnetostrictive transducer of ultrasonic oscillations, rigidly and centrally secured on its lower side, and on the upper side are rigidly and centrally secured the concentrators of ultrasonic waves of spring type of conical form, external contours of which are parallel to the walls of container and are located with spaces in each other.

Description

Description of the invention

The utility model applies to construction, electrical, food, paint and other equipment, 2 in particular, to installations for the activation and mixing of dispersed solid particles with liquid.

A known installation for cement activation, which holds a frame with vibrators installed on the base with the help of shock absorbers, a hermetic container with a pipeline with hydrodynamic emitters placed in it, nozzles for the introduction and removal of cement suspension and the supply of excess pressure (aut. svid Mo 643346, Cl.? B28C 5/46, published in B.V. Mo3, 1979). 70 The disadvantages of this installation are: - the need for excess pressure to ensure the operation of hydrodynamic emitters; - significant need for water or other liquid; - significant dimensions in height, which makes it difficult to place the activator in the technological line.

Installation for the activation of cement slurry, which holds a sealed container on shock absorbers, and is equipped with shaped sections connected to each other, which create a sealed volume connected to a vacuum system, with magnetostrictive transducers with membranes and p "isoceramic emitters with Teflon tubes placed under them parallel to the inclined walls of the shaped sections (auth. witness. Mo 1065214, Cl? В28С 5/46, publ. In B.V. Mo1, 1984. The disadvantages of this installation are: | І - an insufficient degree of dispersion and mixing of the suspension, since due to the considerable length of the movement of the mixture, not a tight fit to the surface of the membranes and cascade transitions from one emitter to another, the localization of this mixture takes place, its accumulation in one place and its absence in another, superposition of ultrasonic waves; - increased complexity of manufacturing shaped sections; low productivity due to the long length of the movement path suspensions; - - significant consumption of electricity to power several piezoceramic emitters and several magnetostrictive converters, as well as water for their cooling.

Also known is the "Establishment for the activation of cement suspension", which holds a hermetic container, mounted on a base with the help of shock absorbers, a frame with vibrators, inside which a container is placed on shock absorbers, made in the form of funnel-shaped sections placed one above the other, the bottom of each of which with is connected to the pipeline, and its hydrodynamic radiator is installed with a gap relatively below the lying side of the section. The container is also equipped with nozzles for the introduction and removal of cement suspension and the supply of excess pressure (authentic certificate Mo 874378, Cl. В28С 5/46, published in B.V. Mo39 of 1981 r.1. ("in")

The disadvantages of this installation are: c - insufficient degree of dispersion of the mixture, for example, cement suspension; - due to the long path of movement and cascade transitions from one emitter to another; - low performance due to the same reason and insufficient action of the ultrasonic field on the solid parts of the suspension.

It is also known, according to author. witness Mo. 1451027, Cl. 7 B28S 5/46, publ. in B.V. Мо2 in 1989, "Installation for "70 activation of cement suspension", which holds a container installed on shock absorbers, with membranes placed sequentially in it with magnetostrictive converters, nozzles for introducing and removing the suspension and a connection fitting with a vacuum system The installation is equipped with funnels, each of which is placed under the "" membrane and mounted on the container with the help of a ring and gasket, placed parallel to the axis of the container by a rod with ball valves, one of which is placed in the cover of the container, and each of the other ones - in the bottom of the membrane, made of a plate form with a perforated bend, and each transducer is placed on the bottom of the membrane.

The disadvantages of the installation are: o - the insufficient degree of mixing of the component suspensions, as the funnels are not exposed to the action of ultrasonic vibrations and practically create conditions for the stratification of the mixture (water with a density of 1 g/cm" and cement -3, g/cm); - a fitting attached to the vacuum system is placed in such a way that it does not contribute to the creation of a pressure difference, and is necessary for strengthening the operation of hydrodynamic emitters;

Gee! - due to the presence of a large number of gaskets made of elastic material, the degree of reliability of the installation decreases, and their replacement is difficult, as it requires complete disassembly of the installation; ball valves complicate the design of the installation; the presence of magnetostrictive converters causes a significant need for electricity, complicates the design of the installation and their reliability in operation.

The task of the useful model is to intensify the processes of mixing and activation of the suspension, increase the reliability of the installation, simplify its design and save energy resources.

As a prototype, the mixer-activator according to the patent of Ukraine Mo5964, Cl. B28C 5/46, publ. In Bul.

Moi, 2003Zr., which is equipped with a cup-type membrane placed coaxially inside the container, because it is installed between a gasket made of elastic material, which rests on an annular stop with vertically placed holes, which is rigidly fixed to the inner wall of the container from below, and an annular gasket made of elastic material, installed in the limiters rigidly fixed to the lower side of the cover, to the bottom of this membrane. With holes along the perimeter, a magnetostrictive transducer is rigidly fixed, and in the middle of the cylindrical part of the membrane, conical membranes are sequentially and rigidly fixed upward with spherical 65 tops, with hydrodynamic emitters along the perimeter.

The disadvantages of the prototype are:

- low efficiency of hydrodynamic emitters; - insufficient degree of activation of solid particles in the liquid due to low intensity and not in the entire volume of cavitation; - the difficulty of replacing hydrodynamic radiators.

Common features for the ultrasonic activator-mixer and the prototype are a vertically installed container on shock absorbers, which is equipped with a bottom, a cover, a shut-off valve, a membrane with a magnetostrictive transducer of ultrasonic vibrations, and a concentrator of ultrasonic waves.

The design solution of the ultrasonic activator-mixer is provided by essential 7/o Distinctive features, in comparison with analogues and the prototype: 1. Replacement of part of the features with new ones, which indicates the presence of essential features - a membrane with a rigidly and centrally fixed on its upper side a concentrator of ultrasonic waves of a spring of the conical type, the external forms of which are parallel to the walls and are placed with gaps in each other.

Such a constructive solution repeatedly increases the concentration of ultrasonic fields between the springs and /5 bcreates better conditions for the occurrence of cavitation phenomena in the turbulent movement of the suspension, which are the most powerful destructors of the solid phase in the liquid and mixers of destruction products with the liquid phase. A significant increase in the specific surface of the solid phase, in turn, ensures an increase in the activity of the suspension, as its qualitative indicator. At the same time, the presence of impacts and co-impacts of solid particles, their friction and mechanical erosion should be taken into account. 2. A partially new combination of features, which also indicates the presence of essential features - several spring-type ultrasonic wave concentrators, which are structurally different from prototype concentrators and analogues, and at the same time provide quality indicators expressed in a significant strengthening of ultrasonic fields, and further, cavitation.

Such a fundamentally new technical solution ensured the simplification of the installation design and its improvement.

In this case, there is not only a new combination of features, but also the introduction of a new feature.

Z. According to paragraphs 1 and 2, in the constructive solutions of the ultrasonic activator-mixer there are new - mutual positions of features and new types of communication between them.

The ultrasonic activator - mixer of Fig. 1 holds a vertically installed conical container 1 with a lid 2, provided with a central inlet pipe Z with a cork valve 4 and a bottom 5 installed on F with shock absorbers 6, equipped with a central outlet pipe 7 with a cork valve 8, on which, with the help of sealing and shock-absorbing ring gaskets 9 and 10 horizontally, under the larger base of the conical container

And, a membrane 11 is installed with holes 12 located around the perimeter of the magnetostrictive transducer 13 " of ultrasonic oscillations, rigidly and centrally fixed on its lower side, and on its upper side rigidly and centrally fixed concentrators of ultrasonic waves of a spring-type conical shape, external /С2 zv Contours of which parallel to the walls of container 1: outer 14 in Fig. 14, inner 15 in Fig. 5 and one or more intermediate 16 in Fig. 3, Fig. 4.

The ultrasonic activator-mixer works as follows.

When the cork valve 8 is closed, the high-frequency generator (not shown) is turned on, connected to the magnetostrictive converter 13 and the cork valve 4 is open, the suspension is fed into the container 1 through the inlet pipe 3 for its activation and mixing of the components. c With falling into the zone of the most concentrated ultrasonic fields of the inner spring concentrator 15, intermediate spring concentrators 16, and outer spring concentrator 14, cavitation phenomena occur in turbulent suspension flows, which are powerful dispersants of the solid phase in the liquid and high-quality mixers of the products of the destruction of solid particles with the liquid. At the same time, the destructive effect of cavitation on solid particles is complemented by impacts and co-impacts of these particles, various types of their friction and mechanical erosion. These actions take place before the suspension is lowered onto the membrane 11, where they are again amplified by the ultrasonic field of its upper side. Passing through the holes 12, which work as cylindrical concentrators and hydrodynamic emitters, the suspension cools the case of the magnetostrictive converter 13 and is exposed to the action of its ultrasonic fields and their ultrasonic field of the lower side of the membrane 11, which ensures the stability of the action of cavitation phenomena.

By filling container 1 from below, the cavitation effect continues. When the container 1 is completely filled, the cork valve 8 is partially or completely opened and the activated suspension is removed for its further use. c At the same time, the cork valve 4 regulates the volume of the suspension, which is fed into the container 1 through the inlet pipe З and the process continues in continuous mode.

At the end of the work, the installation is washed in the same way, after which the high-frequency generator (not shown) is turned off.

When the work is resumed, the processes are repeated. with

Claims (1)

The formula of the invention 60 Sh , 0, An ultrasonic activator-mixer, which contains a hermetically sealed container vertically installed on shock absorbers, equipped with a lid, a bottom, and shut-off valves, a membrane with a magnetostrictive transducer of ultrasonic vibrations and a concentrator of ultrasonic waves, which is characterized by the fact that it is equipped with a vertically installed conical container with a lid, equipped with a central entrance 65 with a nozzle with a cork valve and a bottom mounted on shock absorbers, provided with a central outlet nozzle with a cork valve, on which, with the help of ring sealing and shock-absorbing gaskets horizontally, under the larger base of the conical container, a membrane is installed with holes located around the perimeter of the magnetostrictive transducer of ultrasonic vibrations , rigidly and centrally fixed on its lower side, and on the upper side rigidly and centrally fixed ultrasonic wave concentrators of the spring-type conical shape, the outer contours of which are parallel to the walls of the container and are placed with gaps in each other. schi z (22) (ze) o Zo «o - and? o o o (32) 60 b5