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The article presents the results of research aimed at increase of the efficiency of gas cleaning equipment based on the Venturi tube using high-intensity ultrasound. The model based on known laws of hydrodynamics of multiphase mediums of dust-extraction in Venturi scrubbers was proposed. Modification of this model taking into account ultrasonic field allows evaluating optimum modes (sound pressure level) and conditions (direction of ultrasonic field, square and number of ultrasonic sources) of ultrasonic influence. It is evaluated that optimum for efficient gas cleaning is the mode of ultrasonic action at the frequency of 22 kHz with sound pressure level of 145…155 dB at the installation of two radiators with area of 0.14 m2, four radiators with area of 0.11 m2 or six radiators with area of 0.08 m2 at the angle of 45 degrees to the axis of Venturi tube. Numerical calculations showed that realization of ultrasonic action is the most efficient for the reduction (up to 15 times) of the content of fine-dispersed fraction (2 µm and less), which is impossible to extract without ultrasonic action. The received theoretical results were confirmed by industrial testing by typical dust-extraction plant and used as foundations of development of apparatuses with the radiators of various sizes.
Słowa kluczowe
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Czasopismo
Rocznik
Tom
Strony
757--771
Opis fizyczny
Bibliogr. 28 poz., rys., tab., wykr.
Twórcy
autor
- Biysk Technological Institute (branch) of the AltSTU, 659305, Biysk, Russia
autor
- Biysk Technological Institute (branch) of the AltSTU, 659305, Biysk, Russia
autor
- Biysk Technological Institute (branch) of the AltSTU, 659305, Biysk, Russia
autor
- Biysk Technological Institute (branch) of the AltSTU, 659305, Biysk, Russia
autor
- Biysk Technological Institute (branch) of the AltSTU, 659305, Biysk, Russia
autor
- Biysk Technological Institute (branch) of the AltSTU, 659305, Biysk, Russia
autor
- Biysk Technological Institute (branch) of the AltSTU, 659305, Biysk, Russia
Bibliografia
- 1. Balabekov O. S., Baltabaev L. Sh. (1991), Purification of gases in chemical industry. Processes and apparatuses [in Russian], Chemistry, Moscow.
- 2. Chernov N. N. (2004), Acoustic methods and means of precipitation of suspended particles of industrial flue gases [in Russian], D.Sc. Thesis, Taganrog State Radiotechnical University.
- 3. Danser H. W., Neumann E. P. (1949), Industrial sonic agglomeration and collection systems, Industr. and Eng. Chem., 41, 11, 2439.
- 4. Flagan R. C., Seinfeld J. H. (1988), Fundamentals of air pollution engineering, Prentice-Hall, Inc., Englewood Cliffs, New Jersey.
- 5. Gallego-Juarez J. A., Rodriguez-Corral G., Riera-Franco de Sarabia E., Hoffmann T. L., Calvez-Moraleda J. C. (1999), Application of acoustic agglomeration to reduce fine particle emissions from coal combustion plants, Environmental Science and Technology, 33, 21.
- 6. Hygienic Standards 2.1.6.695-98 (1998), Maximum admissible concentration of polluting substances in air of residential area [in Russian].
- 7. Khmelev V. N., Galakhov A. N., Tsyganok S. N., Lebedev A. N., Shalunov A. V., Khmelev M. V. (2010a), Ultrasonic coagulation on the basis of piezoelectric vibrating system with focusing radiator in the form of step-variable plate, 11th Annual International Conference and Seminar on Micro/Nanotechnologies and Electron Devices, pp. 376–379, Novosibirsk.
- 8. Khmelev V. N., Lebedev A. N., Tsyganok S. N., Shalunov A. V., Galahov A. N., Shalunova K. V. (2009), Multifrequency ultrasonic transducer with stepped-plate disk, Proceedings of 10th International Workshop and Tutorials on Electron Devices and Materials, pp. 250–253, Novosibirsk.
- 9. Khmelev V. N., Shalunov A. V., Golykh R. N., Shalunova K. V. (2010b), Theoretical study of acoustic coagulation of gas-dispersed systems, Proceedings of 11th Annual International Conference and Seminar on Micro/Nanotechnologies and Electron Devices, pp. 328–333, Novosibirsk.
- 10. Khmelev V. N., Shalunov A. V., Shalunova K. V. (2008), The acoustical coagulation of aerosols, Proceedings of 9th International Workshop and Tutorials on Electron Devices and Materials Proceedings, Novosibirsk.
- 11. Khmelev V. N., Shalunov A. V., Shalunova K. V., Shalunova A. V., Antonnikova A. A. (2012), Study of possibility of ultrasonic coagulation in air flow, Proceedings of 13th International Workshop and Tutorials on Electron Devices and Materials, pp. 183–187, Novosibirsk.
- 12. Khmelev V. N., Shalunov A. V., Shalunova K. V., Tsyganok S. N., Barsukov R. V., Slivin A. N. (2010c), Ultrasonic coagulation of aerosols [in Russian], Publisher of Altay State Technical University, Barnaul.
- 13. Kouzov P. A., Malgin A. D., Skryabin G. M. (1993), Purification of gases and air form dust in chemical industry [in Russian], Chemistry, Leningrad.
- 14. Kropp L. I., Akbrut A. I. (1977), Dust-collectors with Venturi tubes at thermal power stations, Energy [in Russian], Moscow.
- 15. Kudryashova O. B., Antonnikova A. A., Titov S. S. (2013), Physical and mathematical model of the coagulation of micron and submicron aerosols with regard for evaporation and sedimentation at ultrasonic effect, Thermophysics and Aeromechanics, 20, 3, 381–384.
- 16. Lavely L. L., Ferguson A. W. (1996), Power Plant Atmospheric Emissions Control, Power Plant Engineering, pp. 418–463.
- 17. Mohamed K. K. [Ed.] (2011), The Impact of Air Pollution on Health, Economy, Environment and Agricultural Sources, Publisher InTech, Rijeka.
- 18. National Ambient Air Quality Standards, United States Environmental Protection Agency.
- 19. Shalimo M. A. (1965), Acoustic coagulation of cement mixes, Journal of engineering physics, 8, 3, 253–255.
- 20. Shilyaev M. I., Shilyaev A. M., Grischenko E. P. (2006), Methods for calculation of dust collectors [in Russian], Publisher of Tomsk State University of Architecture and Civil Engineering.
- 21. Shtokman E. A. (1977), Purification of air from dust at the enterprises of food industry [in Russian], Food industry, Moscow.
- 22. Shtokman E. A. (1999), Air purification [in Russian], ASV publishing, Moscow.
- 23. Skryabina L. Y. (1980), Industrial and sanitary purification of gases. Atlas of industrial dusts. Part I. Flue ash of the thermal power stations, Central Institute of Scientific-Technical Information and Technical-Economical Studies of Chemical and Oil Mechanical Engineering, Moscow.
- 24. Sommerfeld M. (2001), Validation of a stochastic Lagrangian modelling approach for inter-particle collisions in homogeneous isotropic turbulence, Int. J. of Multiphase Flow, 27, 1829–1858.
- 25. St. Clair H. W. (1949), Agglomeration of smoke, fog or dust particles by sonic waves, Industr. and Eng. Chem., 41, 11, 2434.
- 26. Uzhov V. N. (1981), Cleaning of industrial gases from dust [in Russian], Chemistry, Moscow.
- 27. Vincent B. [Ed.] (1987), Coagulation Kinetics and Structure Formation, Publisher Springer, US.
- 28. Zhang G. X., Liu J. Zh., Wang J., Zhou J. H., Cen K. F. (2012), Numerical simulation of acoustic wake effect in acoustic agglomeration under Oseen flow condition, Chinese Science Bulletin, 57, 19.
Uwagi
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-cf3e5e97-9dba-40e6-abc0-2768a80fcfe0