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Pneumatic transportation of dispersed medium through a vertical tube immersed into a fluidized bed

  • Steam Boilers, Power-Generating Fuel, Burners, and Boiler Auxiliary Equipment
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Abstract

We discuss the technical problem of how to transport granular material in a vertical direction from the underlying section of a multistage apparatus containing a fluidized bed to an upper section through tubes immersed into the fluidized bed without additional expenditures of energy. The intensity with which the dispersed medium (a mixture of gas and fuel particles) moves through the tube and the mass flowrate of particles are determined by the ratio between the hydraulic resistances of dispersed medium inside the tube and of the fluidized bed outside of it. In turn, this ratio depends on the fluidization number W (W = w s/w 0, where w s is the seepage velocity and w 0 is the fluidization commencement velocity) and on the tube immersing depth into the bed.

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References

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Authors and Affiliations

  1. Ural Federal University, ul. Mira 19, Yekaterinburg, 620002, Russia

    V. Yu. Krasnykh, V. N. Korolev & A. V. Ostrovskaya

  2. VNIITiN, Russian Academy of Agriculture, Novo-Rubezhnyi per. 28, Tambov, 392022, Russia

    S. A. Nagornov

Authors
  1. V. Yu. Krasnykh
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  2. V. N. Korolev
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  3. A. V. Ostrovskaya
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  4. S. A. Nagornov
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Additional information

Original Russian Text © V.Yu. Krasnykh, V.N. Korolev, A.V. Ostrovskaya, S.A. Nagornov, 2013, published in Teploenergetika.

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Krasnykh, V.Y., Korolev, V.N., Ostrovskaya, A.V. et al. Pneumatic transportation of dispersed medium through a vertical tube immersed into a fluidized bed. Therm. Eng. 60, 787–790 (2013). https://doi.org/10.1134/S0040601513110074

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  • DOI: https://doi.org/10.1134/S0040601513110074

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