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Development of an Electric Furnace for Heat Treatment of Vermiculite with Firing Module Curved Surfaces

  • HEAT ENGINEERING
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Refractories and Industrial Ceramics Aims and scope

A new modification of electric modular firing furnaces for heat treatment of vermiculite with firing module curved surfaces is considered. The basic designs of such furnaces consist of three or two flat modules installed at an angle to each other for pouring material from one module to another and firing in a thermal field created by electric heaters.With the same length of curved module refractory base the heat treatment time increases by 23%, and the exit velocity of the expanded vermiculite grains decreases to 0, 6 – 0, 65 m/sec, which is enough so that all particles, regardless of size, do not settle at the module outlet and do not form blockages. Increasing firing duration does not reduce furnace productivity, but it reduces the specific energy content of the process. Energy consumption and energy intensity of vermiculite firing are reduced by 13 %, but the module design is not optimal. Optimization of the size and shape of modules to increase furnace unit energy efficiency is a task for subsequent research.

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Authors and Affiliations

  1. Irkutsk National Research Engineering University, Irkutsk, Russia

    A. I. Nizhegorodov

  2. National Research Polytechnic University, Tomsk, Russia

    A. N. Gavrilin & B. B. Moizes

Authors
  1. A. I. Nizhegorodov
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  2. A. N. Gavrilin
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  3. B. B. Moizes
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Corresponding author

Correspondence to A. I. Nizhegorodov.

Additional information

Translated from Novye Ogneupory, No. 12, pp. 22 – 28, December, 2022

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Nizhegorodov, A.I., Gavrilin, A.N. & Moizes, B.B. Development of an Electric Furnace for Heat Treatment of Vermiculite with Firing Module Curved Surfaces. Refract Ind Ceram 63, 610–615 (2023). https://doi.org/10.1007/s11148-023-00778-1

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  • DOI: https://doi.org/10.1007/s11148-023-00778-1

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