RU34401U1 - Ultrasound device - Google Patents

Description

Ultrasound device;

The utility model relates to the Shitsev industry and may find application in the wine, brewing, distillery, microbiological industries for the production of food additives in the preparation of fermented beverages, baby and diet food and feed.

An ultrasonic device for dispersing materials and producing food additives is known, in which three ultrasonic transducers are uniformly spaced around a cylindrical reactor and mounted in steel sleeves welded to the outer wall of the reactor. Ultrasound is transmitted through a buffer liquid, in particular olive oil, and a wall to the liquid in the reactor. The intensity of the ultrasound is sufficient for the occurrence of cavitation and, therefore, the course of the dispersion process. UK patent No. 22433092, B 01 J 11/10, 1991

Known dispersant (Russian Patent No. 1599075, 01 J 11/10, 1988) containing an ultrasonic vibration source, a mixing chamber with inlet and outlet pipes, nozzle with cylindrical holes. At the exit of the nozzle, a turbulent rotational movement of flows with cavitation bubbles is formed.

These known inventions do not provide the possibility of obtaining micro droplets, uniform in size.

A device for dispersion, containing a reactor with ultrasonic emitting systems operating synchronously, and a generator. The reactor consists of two chambers - the upper and lower with a check valve on the discharge pipe, each

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of the cameras is equipped with an ultrasonic piezoelectric oscillatory system. Between the cameras, a track filter is installed, enclosed in a coarse mesh of stainless steel. Patent of the Russian Federation No. 2096074, 01 J 11/02, 1997 (Prototype).

The prototype of the prototype is the low efficiency of processing media, for example dispersion and homogenization of suspensions, since the structural elements of the device do not provide the creation of hydrodynamic processes in the medium being processed, including the extensive cavitation zone.

The objective of this utility model is to intensify the process of lysis of yeast cultures, increase the dispersion and homogenization of suspensions, create an extensive cavitation zone, and increase the biological value of lysates.

The technical result is achieved in that in an ultrasonic device containing ultrasonic emitters and a stainless steel chamber having a discharge pipe with a non-return valve connected to the material loading hatch and a drain pipe, the chamber is sealed and connected via a leak to a nitrogen supply system, ultrasonic emitters are uniformly located on the side surface of the chamber, a filter with the possibility of lateral movement is installed at the inlet of the drain pipe of pipe - the locking mechanism to the discharge pipe is connected compressor.

The essence of the utility model is schematically illustrated in the drawing, where: 1 - a working chamber made of stainless steel, 2 - transducers of acoustic vibrations (piezoelectric and / or magnetostrictive), 3 discharge pipe, 4 - check valve, 5 - manhole loading fluid, 6 - drain pipe, 7 - leak, 8 - nitrogen supply system, 9 - movable filter, 10 - shut-off mechanism, 11 compressor, 12 - reservoir with working fluid.

Installation works as follows.

To obtain a working fluid, namely a yeast suspension, a liquid wiring of a pure yeast culture is taken, or dry yeast preparation is rehydrated, while the concentration of yeast cells is regulated by the amount of added water mixed with wine material or grape must. An important factor of the working material is its fluidity and the liquid component, without which the use of ultrasound is not possible. The boundary of the concentration of yeast cells in the working fluid is 10 cells / cm. A further increase in the number of yeast culture cells leads to a pasty mass, which quenches the spread of ultrasound in volume.

The working fluid (yeast suspension) from the tank 12 through the discharge pipe 3 is supplied under the pressure created by the compressor 11 into the working chamber 1 in a nitrogen atmosphere.

To create a nitrogen atmosphere in the working chamber 1 first clean the volume of the working chamber from the air. The presence of the oxygen component in the working chamber 1 as a result of sound-chemical reactions leads to the formation of harmful nitrogen compounds, such as nitric and nitrous acids, nitrogen dioxide and others, which reduce the biological activity and nutritional value of lysates.

The removal of air from the working chamber 1 can be carried out in various ways: simply by supplying nitrogen from the system 8 through

leakage 7 or evacuation of the working chamber 1 and its subsequent filling with nitrogen through the leakage 7.

In the process of filling the working chamber 1 with a yeast culture, nitrogen is compressed, because a non-return valve 4 mounted above the loading hatch 5, the leakage 7 and the locking mechanism 10 do not allow either the working fluid or nitrogen to leave the working chamber 1. Then, an ultrasonic generator is turned on, the acoustic vibration transducers 2 of which excite an ultrasonic field with a frequency of 50 kHz and less below 45 W / cm. As a result of this exposure to the acoustic field for 15-20 minutes, there is an additional heating of nitrogen and heating of the yeast culture to 65-70 ° C, there is a cavitation effect, leading to a rapid lysis of the yeast culture. The specified mode allows you to control the destruction of yeast cells from a partial change in the permeability of cell membranes to the complete destruction of cell structures.

After 15-20 minutes after turning on the ultrasound generator, the resulting product is transported through the drain pipe 6 under the influence of increased pressure through a movable filter 9 to the exit.

For given parameters, the lysis is carried out in a sparing mode, in which the intracellular pool of biologically active compounds does not undergo significant changes, which allows you to control the yield of the desired compounds. As a result of the action of the acoustic field and increased external pressure, an extensive zone of cavitation bubbles is organized, the temperature rises, which leads to an increase in the permeability of cell membranes, a change in the structure of intracellular organelles, which intensifies the exit from

Yeast cell enzymes and other biologically active substances. When intracellular compounds come into contact with substances contained in wine or beer, an induced synthesis of yeast enzyme systems on intracellular structures occurs, an increase in the activity of yeast enzymes under the action of wine substrates, and an intensification of the biochemical transformations of wine compounds under the influence of intracellular yeast components with the formation of products characteristic of aged wines.

You can not use filter 9 to prepare wines, as The wine preparation process also includes filtration.

Claims (1)

An ultrasonic device comprising ultrasonic emitters and a stainless steel chamber having an injection nozzle with a check valve connected to a material loading hatch and a drain nozzle, characterized in that the chamber is sealed and connected to a nitrogen supply system through a leak pipe, the ultrasonic emitters are evenly spaced on the side surface of the chamber, at the inlet of the drain pipe, a filter is installed with the possibility of transverse movement, and at the outlet there is a locking mechanism, to discharge flax conduit connected compressor.