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Motion of gunite masses in the nozzles of tuyeres for flame guniting

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Conclusions

When Gunite mass is supplied through the nozzle of a tuyere into the cavity of a metallurgical assembly, there is a significant spread in the values of the velocities of individual fractions of the polydispersed gas suspension. The greater the density of the particles of polydispersed gas suspensions, the smaller the spread of velocities among the individual fractions of the component.

The spread of velocities in a section of the nozzle depends significantly on the concentration of Gunite mass in the flow of air. The greater the concentration, the less is the spread of velocities.

In calculating the nozzles of a tuyere it is necessary to take into account the collisions between the particles of the polydispersed gas suspension which causes a distortion of the velocities where the concentration of Gunite mass in the transporting gas flow is high.

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Literature cited

  1. S. E. Andreev, V. V. Tovarov, V. N. Perov, et al., in: Fundamentals of Milling and the Calculation of the Characteristics of a Granulometric Composition [in Russian], Moscow (1969).

  2. G. L. Babukha and A. A. Shraiber, The Interaction between the Particles of a Polydispersed Material in a Two-Phase Flow [in Russian], Kiev (1972).

  3. R. I. Nigmatulin, Fundamentals of the Mechanics of Heterogeneous Media [in Russian], Moscow (1978).

  4. I. P. Ginzburg, Theory of Resistance and Heat Transfer [in Russian], Leningrad (1970).

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Authors and Affiliations

  1. All-Union Institute of Refractories, USSR

    I. P. Tsibin, A. A. Shershnev, A. F. Polyanskii, O. P. Provodenkov, E. Yu. Shkol'nikova & M. V. Malakov

  2. Western Siberia Metallurgical Plant, USSR

    I. P. Tsibin, A. A. Shershnev, A. F. Polyanskii, O. P. Provodenkov, E. Yu. Shkol'nikova & M. V. Malakov

Authors
  1. I. P. Tsibin
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  2. A. A. Shershnev
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  3. A. F. Polyanskii
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  4. O. P. Provodenkov
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  5. E. Yu. Shkol'nikova
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  6. M. V. Malakov
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Additional information

Translated from Ogneupory, No. 11, pp. 34–38, November, 1981.

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Tsibin, I.P., Shershnev, A.A., Polyanskii, A.F. et al. Motion of gunite masses in the nozzles of tuyeres for flame guniting. Refractories 22, 569–574 (1981). https://doi.org/10.1007/BF01398164

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  • DOI: https://doi.org/10.1007/BF01398164

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