Developments of the UralNIIstrom Institute in the field of technologies and equipment for enrichment of vermiculite ores and production of expanded vermiculite

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Abstract

Vermiculite deposits are a heterogeneous array of micaceous minerals of varying degrees of hydration with a significant number of host rocks.The development of technology and equipment for both the enrichment of vermiculite ores and for the swelling of vermiculite and hydrosludes should be carried out taking into account their mineralogical features and the composition of the host rocks. The UralNIIstrom Institute has developed a series of installations for the enrichment of vermiculite ores and the production of expanded vermiculite. The developed installations are successfully operated in the Russian Federation/ and abroad.

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About the authors

R. Ya. Akhtyamov

LLC “Ural Research Institute of Building Materials”

Author for correspondence.
Email: sekr@7359808.ru

Candidate of Sciences (Engineering) 

Russian Federation, 5, bldg. 5, Stalevarov Street, Chelyabinsk, 454047

References

  1. L’vova I.A. Mestorozhdeniya vermikulita SSSR [Vermiculite deposits of the USSR]. Leningrad: Nedra, 1974. 222 p.
  2. Axtyamov R.Ya. The state of the raw material base of the vermiculite industry in Russia. Stroitel’nye Materialy [Construction Materials]. 2001. No. 11. pp. 6–8. (In Russian).
  3. Popov N.A. Proizvodstvo i primenenie vermikulita [Production and application of vermiculite]. Moscow: Stroyizdat, 1964. 155 p.
  4. Axtyamov R.Ya. Vermiculite – raw material for the production of fireproof thermal insulation materials. Ogneupory i texnicheskaya keramika. 2009. No. 1–2. pp. 58–64. (In Russian).
  5. Kovdorskij vermikulit [Kovdor vermiculite] / under edit. D.D. Tenner. Apatity: Kol’skij filial AN SSSR, 1966. 370 p.
  6. Axtyamov R.Ya. Potaninsky vermiculite is a promising raw material for the production of high-temperature thermal insulation materials. Ogneupory i texnicheskaya keramika. 2011. No. 4–5, pp. 92–96. (In Russian).
  7. Karaseva T.P., Germenkop A.Sh., Sychuk V.F. Obogashchenie vermikulitovykh rud [Beneficiation of vermiculite ores]. Leningrad: Nauka. 1972. 140 p.
  8. Akhtyamov Ya.A., Gemmerling G.V. O napravlenii sovershenstvovaniya vspuchivaniya vermikulita / Stroitel’nye materialy i betony [On the direction of improvement of vermiculite swelling / Construction materials and concrete]. Chelyabinsk: UralNIIstromproekt, 1969.
  9. Akhtyamov YA.A., Bobrov B.S., Gemmerling G.V., Epel’baum M.B. Obzhig vermikulita [Vermiculite firing]. Moscow: Stroyizdat, 1972. 129 p.

Supplementary files

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2. Fig. 1. Vermiculite deposits in the Russian Federation

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3. Fig. 2. Installation MVU-2 for swelling vermiculite concentrates

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4. Fig. 3. AVO-2 unit for swelling vermiculite ores containing hydromicas

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5. Fig. 4. Schematic diagram of the AVO-2 unit

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6. Fig. 5. Vibration ejection separator MVES-2

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