Anton N. Galakhov

Designing of multi-frequency source of ultrasonic action with radiator in form of stair-step disc

The article is devoted to designing of multi-frequency source of ultrasonic action with radiator in form of stair-step disc.

The control of the ultrasonic coagulation of dispersed nanoscale particles

In the article the results of the researches on efficiency definition of ultrasonic coagulation of ready nanodispersed product are presente. Developed measuring bench allowed to control changes of concentration of nanoparticles due to their agglomeration at the application of high-intensity ultrasonic vibrations.

Study of the process of liquid atomization from the ultrasonic disk radiator

The article is devoted to the process of liquid spraying by the ultrasonic radiator in the form of disk. New functional possibilities of the ultrasonic disk radiators during liquid spraying were studied. The results of productivity and power inputs for spraying at the application of different systems of fluid supply were obtained.

Development of the equipment for ultrasonic treatment of biological tissues with simultaneous spraying of medicines

The article is devoted to the development of the equipment for contact-free energy action of high-intensity ultrasonic vibrations for practical treatment of biological tissues with simultaneous spraying of medicines. The model of the apparatus, which was able to provide necessary treatment of biological tissues, was developed. The results of measurements of distribution of ultrasonic vibration intensity of the disk radiator were obtained, disperse composition of the aerosol was determined.

Ultrasonic coagulation on the basis of piezoelectric vibrating system with focusing radiator in the form of step-variable plate

The article proposes a new method of particle coagulation with the help of ultrasonic vibrating system with the radiator in the form of disk step-variable in thickness. For practical application the design procedure of radiators of step-variable type is described.

Revealing of optimum modes of ultrasonic coagulation of submicron particles and determining of the shape of the aggregates by mathematical modeling

The article presents the results of studying of the process of aggregate formation at the ultrasonic coagulation of submi-cron particles. The results are obtained on the base of mathematical modeling of translatory motion and rotary motion of the couple of particles under the action of ultrasonic field. The novelty of proposed model is in the fact that specific feature of flow of small-scale particles (less than 1 μm) by continuous medium at the deflection of their form from spherical is taken into consideration. Obtained results let formulating requirements to the radiators of ultrasonic vibrations for realization of the coagulation process with maximum efficiency.

Development of the rectangular ultrasonic radiator of the stair-step form

The article is devoted to the development of ultrasonic radiator in form of stair-step plate. The influence of radiator sizes on frequency and vibration amplitude is studied. On the base of the represented calculations it was determined the set of recommendations for designing of such radiators.

The development of the agglomerator for efficiency increase of the separation of nanoscale particles

The article is devoted to the development of the agglomerator to increase the efficiency of separation of nanoscale dispersed particles. Designed agglomerator provides preliminary coagulation due to ultrasonic action, and it allows to enlarge particles in 8 times at the productivity of 1000 m3/hour, with the concentration of upto 200gr/m3, density of the material agglomerates is 200 kg/m3 and initial size of the particles is 200 nm. It guarantees essential increase of the efficiency of the apparatus of centrifugal acoustic collection.

Development of the construction of the apparatus for centrifugal acoustic collection of nanoscale aerosols

In the article the construction of improved apparatus of opposite rotational flotations for collection of ready nanodispersed product is considered. The main feature of perfected construction is an introduction of two sources of ultrasonic vibrations into the apparatus, for which piezoelectric vibrating systems with the disk radiators are used. Carried out analysis of the apparatus of opposite rotational flotations by finite element method showed high efficiency of developed centrifugal apparatus providing collection of 90% of nanomaterial particles.

Compact ultrasonic drier for low temperature dehydration of products in food industry

The article is devoted to the method of low-temperature drying of materials in the food industry based on application of the compact drier consisting of the ultrasonic vibration system with the aluminum thickness stepped-variable disk radiator.