Tunnel kiln with chamber firing mode – the perfect heat and process unit

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Сomparison of traditional tunnel kilns energy and production efficiency, massively used in domestic brick factories, with chamber and ring kiln units has been carried out. It is shown that the latter are conditionally thermotechnically more efficient, their specific fuel consumption per 1 ton of fired product corresponds to the Soviet norms and is significantly lower than the best available technologies. A new design of tunnel kiln with chamber firing mode is proposed, it allows setting required heating, holding or temperature reduction rate in each chamber, while maintaining high temperature field uniformity throughout the cage volume. High environmental performance is achieved due to separate flue gas extraction from the firing channel individual chambers.

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作者简介

V. Kurnosov

OOO «KOMAS»

编辑信件的主要联系方式.
Email: kbb@komas.su

Candidate of Sciences Physics and Mathematics

俄罗斯联邦, 8A, Martovskaya Street, Aprelevka, 143362, Moscow Oblast

V. Tikhonova

OOO «KOMAS»

Email: kbb@komas.su

Engineer

俄罗斯联邦, 8A, Martovskaya Street, Aprelevka, 143362, Moscow Oblast

参考

  1. Guseva T.V., Zakharov A.I., Molchanova Ya.P., Vartanyan M.A., Akberov A.A. The best accessible technologies of ceramic building materials production as an instrument of ecological regulation of the industry. Stroitel’nye Materialy [Construction Materials]. 2016. No. 4, pp. 4–9. (In Russian). EDN: VZYLJJ
  2. Information and technical reference book “Production of ceramic products” ITS 4 [Information and technical reference book “Production of ceramic products” ITR 4]. Moscow: Byuro NDT. 2015.
  3. Industrial energy efficiency. Benchmarking-report of the ceramics sector. 2017. https://ieeegypt.org/wp-content/uploads/2017/01/BM-Report-Ceramics.pdf
  4. Patent RF 2406049. Tunnel’naya pech’-sushilka [Tunnel furnace dryer]. Ashmarin G.D., Kurnosov V.V., Belyaev S.E., Lastochkin V.G. Declared 26.11.2009. Published 10.12.2010. Bulletin No. 34. (In Russian).
  5. Ashmarin G.D., Lastochkin V.G., Sinyanskii V.I., Ilyukhin V.V., Kurnosov V.V. Reduction of a cycle of thermal treatment in technology of ceramic brick compression moulding. Stroitel’nye Materialy [Construction Materials]. 2013. No. 4, pp. 42–43. (In Russian). EDN: QBDVKN
  6. Kurnosov V.V., Tihonova V.R. Hood furnace – universal unit for burning ceramics. Stroitel’nye Materialy [Construction Materials]. 2023. No. 5, pp. 48–52. (In Russian). EDN: MWYJJT. https://doi.org/10.31659/0585-430X-2023-813-5-48-52
  7. Kurnosov V.V., Shakhov I.I. Technology of high-speed firing of ceramic products. Stroitel’nye Materialy [Construction Materials]. 2001. No. 2, pp. 7. (In Russian). EDN: IBEAGF
  8. Shakhov I.I., Kurnosov V.V. Four-chamber kiln for firing ceramic products. Stroitel’nye Materialy [Construction Materials]. 2003. No. 2, pp. 24. (In Russian). EDN: IBEHOZ

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2. Fig. 1. Tunnel kiln-dryer diagram: 1 – working channel; 2 – fan for supplying air to the end of the cooling zone; 3 – fan for supplying air to the beginning of the cooling zone; 4 – fan for extracting hot air from the cooling zone and supplying it between the drying and preparation zones; 5 – heating system with high-speed burners; 6, 7 – recuperative burners; 8 – fan for extracting flue gases; 9 – preheating zone; 10 – air heater

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3. Fig. 2. Scheme of a tunnel kiln with chamber firing mode

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