Electronic Journal Technical Acoustics ISSN 1819-2408

V.N. Khmelev, A.V. Shalunov, R.V. Barsukov, S.N. Tsyganok, A.N. Lebedev

Ultrasonic apparatus for drying

language: Russian

received 30.06.2009, published 13.07.2009

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ABSTRACT

An apparatus for drying of capillary-porous matters (for example, biological objects and products of various branches of industry) without temperature increasing and destruction of products and matters structure is considered. Positive effect is obtained by means of ultrasonic vibrations of high intensity (150 dB). Ultrasonic does not heat a drying product and positively affects on consumer properties of product (for example, it save gustatory properties of products, increase a storage life and germinating capacity of seeds, etc.).
The disc radiator is developed and made for effective ultrasonic drying in contactless mode. The disk radiator generates ultrasonic field with intensity level not less 130 dB. For the first time the drying chamber of special form is used. This drying chamber ensures resonant amplification of intensity level up to 150 dB. All these technical decisions ensure efficiency of ultrasonic drying.
Results of experiments confirmed high efficiency of drying process by ultrasonic vibrations (increment up to 50 g per 1 kg of drying matter). That allows decreasing temperature of drying agent without losses of quality and speed of drying process. That attests availability and expediency of development of contactless drying units.

Key words: drying, ultrasonic, drying chamber

13 pages, 13 figures

Сitation: V.N. Khmelev, A.V. Shalunov, R.V. Barsukov, S.N. Tsyganok, A.N. Lebedev. Ultrasonic apparatus for drying. Electronic Journal “Technical Acoustics”, http://www.ejta.org, 2009, 6.

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		Khmelev Vladimir Nikolaevich — dean of information technologies and automation faculty at Biysk technological institute, professor, Ph.D (ultrasound). Area of scientific interests is application of ultrasound for an intensification of technological processes. e-mail: vnh(at)bti.secna.ru
		Shalunov Andrey Viktorovich is an engineer of acoustic processes and devices laboratory at Biysk technological institute, PhD, lecturer at the Measurement and Automation department. Graduated Biysk technological institute in 2003. Area of scientific interests is the intensification of technological processes, design of processing lines and equipment for ultrasonic technologies.
		Barsukov Roman Vladislavovich — a leading engineer of acoustic processes and devices laboratory at Biysk technological institute. Graduated Biysk technological institute in 1998 (informatics and measuring instruments). Subject of scientific researches is sources of ultrasonic energy for an intensification of technological processes.
		Tsyganok Sergey Nikolaevic — a head of acoustic processes and devices laboratory at Biysk technological institute. Graduated Biysk technological institute in 1998 (informatics and measuring instruments). Area of scientific interests is development and designing of piezoelectric ultrasonic systems.
		Lebedev Andrey Nikolaevich is an engineer at Biysk Technological Institute on a specialty «informatics and measuring instruments». Area of scientific interests is development and designing of piezoelectric ultrasonic oscillatory systems, mathematical modeling