AbstractAbout AuthorsReferences
Work of the Uralasbest plant shaft furnaces intended for drying asbestos ore and with different movement scheme and flows of gas-air material are considered. Some furnaces operates countercurrent scheme and the other furnaces on the combined scheme when part of the gases from the furnace is fed through the bypass to the top of the shaft. On the basis of the information obtained in the course of industrial research in shaft furnaces, the temperature distribution in the gas-flow and material flow adjustment shafts, data speeds and coolant flow rate, humidity changes ore the thermal balance in the shaft furnaces ore with different moisture contents are compiled and analyzed. It is shown that the ore humidity less than 6% is sufficient for the drying quality by supply of heat to only one horizon (the furnace is working on countercurrent scheme). At higher humidity heat input is required to at least two horizons layers: top-filtered coolant down and bottom-up filtering coolant (the furnace works on the combined scheme). Shaft furnace disadvantages are noted and recommendations, implementation of which will allow to optimize the drying process, and to obtain high quality final product with minimal cost of fuel and electricity
B.P. JUR’EV1 , Candidate of Sciences (Engineering) (yurev–b@ mail. ru),
V.A. GOL’CEV1 , Candidate of Sciences (Engineering),
V.A. MAL’CEV1 , Doctor of Sciences (Engineering);
V.A. SAVIN2 , Engineer (head @ pto.uralasbest.ru)
V.A. GOL’CEV1 , Candidate of Sciences (Engineering),
V.A. MAL’CEV1 , Doctor of Sciences (Engineering);
V.A. SAVIN2 , Engineer (head @ pto.uralasbest.ru)
1 Ural Federal University named after the first President of Russia B.N. Yeltsin (19, Mira Street, Ekaterinburg, 620002, Russian Federation)
2 JSC «Uralasbest» (66, Uralskaya Street, Asbest, Sverdlovsk Region, 624261, Russian Federation)
1. Lykov А.V. Teoriya sushki [Theory of Drying] Moscow: Energiya, 1968. 472 p.
2. Fedosov S.V. Teplomassoperenos v tekhnologicheskikh protsessakh stroitel’noj industrii [Heat and mass transfer processes in the construction industry] Ivanovo: IPK «Press to», 2010. 364 p.
3. Lebedev V.V., Lipin А.G., Kirillov D.V. Modelling of the water-soluble polymer drying process in the thermoradiative dryer. Sovremennye naukoemkie tekhnologii. 2010. No. 1 (21), pp. 57–62. (In Russian).
4. Lebedev V.V., Lipin А.G., Kirillov D.V., Shabrov А.А. Drying the polymer gel, accompanied by shrinkage of the material. Izvestiya vuzov. Khimiya i khimicheskaya tekhnologiya. 2009. T. 52. V. 12, pp. 102–105. (In Russian).
5. Chung F.S. Mathematical model and optimization of drying process for a through-hcirculation dryer. Canad. J.Chem. Eng., 1972. Vol. 50. No. 5, pp. 657–662.
6. Dolmatova M.O., Lisovaya G.K., Ermakov А.А. The intensification of the drying process in the pipes-dryers with inserts. Vestnik UGTU–UPI, Seriya Khimicheskaya. 2003. No. 3 (23), pp.164–166. (In Russian).
7. Gazaleeva G.I., Kochelaev V.А, Osintsev А.А. Improving the technology of asbestos production. Gornyj zhurnal, 2005. No. 8. pp. 24–28. (In Russian).
8. Gazaleeva G.I. Metody uluchsheniya kachestva asbesta [Methods to improve the asbestos quality]. Ekaterinburg: UGTU, 2005. 153 p.
9. Gazaleeva G.I. Design combined concepts based on sorting fractions of concentrate. Izvestiya vuzov. Gornyj zhurnal. 1987. No. 5, pp. 123–128. (In Russian).
10. Kozin V.Z., Gazaleeva G.I., Kovanova L.I. Testing for asbestos ore in concentration plants. Izvestiya vuzov. Gornyj zhurnal. 2005. No. 5, pp. 100–107. (In Russian).
2. Fedosov S.V. Teplomassoperenos v tekhnologicheskikh protsessakh stroitel’noj industrii [Heat and mass transfer processes in the construction industry] Ivanovo: IPK «Press to», 2010. 364 p.
3. Lebedev V.V., Lipin А.G., Kirillov D.V. Modelling of the water-soluble polymer drying process in the thermoradiative dryer. Sovremennye naukoemkie tekhnologii. 2010. No. 1 (21), pp. 57–62. (In Russian).
4. Lebedev V.V., Lipin А.G., Kirillov D.V., Shabrov А.А. Drying the polymer gel, accompanied by shrinkage of the material. Izvestiya vuzov. Khimiya i khimicheskaya tekhnologiya. 2009. T. 52. V. 12, pp. 102–105. (In Russian).
5. Chung F.S. Mathematical model and optimization of drying process for a through-hcirculation dryer. Canad. J.Chem. Eng., 1972. Vol. 50. No. 5, pp. 657–662.
6. Dolmatova M.O., Lisovaya G.K., Ermakov А.А. The intensification of the drying process in the pipes-dryers with inserts. Vestnik UGTU–UPI, Seriya Khimicheskaya. 2003. No. 3 (23), pp.164–166. (In Russian).
7. Gazaleeva G.I., Kochelaev V.А, Osintsev А.А. Improving the technology of asbestos production. Gornyj zhurnal, 2005. No. 8. pp. 24–28. (In Russian).
8. Gazaleeva G.I. Metody uluchsheniya kachestva asbesta [Methods to improve the asbestos quality]. Ekaterinburg: UGTU, 2005. 153 p.
9. Gazaleeva G.I. Design combined concepts based on sorting fractions of concentrate. Izvestiya vuzov. Gornyj zhurnal. 1987. No. 5, pp. 123–128. (In Russian).
10. Kozin V.Z., Gazaleeva G.I., Kovanova L.I. Testing for asbestos ore in concentration plants. Izvestiya vuzov. Gornyj zhurnal. 2005. No. 5, pp. 100–107. (In Russian).
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