Advantages of Melting Cast Iron in Gas Cupola Furnaces

• Autorzy: Grachev V.

Identyfikatory

DOI

10.24425/123605

• Języki publikacji: EN

Abstrakty

EN

The author has developed and patented several types of gas cupola furnaces, which, due to replacing coke with gas, do not emit carbon monoxide, sulfur dioxide and coke dust. The author has defined the optimal modes of gas-and-air mixture combustion, i.e. the optimal coefficient of air discharge and gas mixture escape speed in melting cast iron. It has been experimentally proved that from the point of view of obtaining the maximum temperature, the optimal was the process with some lack of air, i.e. with α = 0.98. The results of metallurgical studies used in the article allowed to develop an optimal structure of the gas cupola furnace with a heterogeneous refractory filling, and to establish the optimal composition of the filling. For the first time the optimal composition of the filling is given: 40% of chamotte, 30% of high-alumina refractory, 30% of electrode scrap. It has been noted that when gas cupola furnaces were used, the main environmental advantage was the reduction of dust emission into the atmosphere, CO and SO2 content.

Słowa kluczowe

EN

innovative foundry technologies; innovative foundry materials; heat treatment; melting; gas cupola furnace; gas combustion mode; refractory filling

PL

innowacyjne technologie odlewnicze; innowacyjne materiały odlewnicze; obróbka cieplna; topienie

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 3
• Strony: 76--80
• Opis fizyczny: Bibliogr. 21 poz., rys., tab., wykr.

Twórcy

autor

Grachev V.

• A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Moscow, Russia

Bibliografia

• [1] American Foundry Society. (2017). Census of world casting production. Modern Casting. 107 (12), 24-25.
• [2] Boldin, A.N. (2010). Engineering ecology of the foundry production. Moscow: Mashinostroyeniye. (in Russian).
• [3] Cherny, A.A. (1966). Experience in converting to gas-fired cupola furnaces. NIIINFORMTYAZHMASH Bulletin. 14(66). (in Russian)
• [4] Grachev, V.A. (1970). Gas and liquid fuel for iron melting. NIIINFORMTYAZHMASH Bulletin. 9(70). (in Russian).
• [5] Grachev, V.A. (2016). Physical and chemical basic principles of cast iron smelting. Moscow: IPhKhiERAN. (in Russian).
• [6] Grachev, V.A. (2016). Development and application of gas cupolas in foundry production. Journal of Engineering and Applied Sciences. 11(23), 13790-13796.
• [7] Kuhn, V. & Volianik, N. (1966). L’hydrogène dans les fontes hypereutectiques. Fonderie. 241, 85-105. (in French).
• [8] National Academy of Science of Ukraine. (2016). History and activity. Retrieved August 14, 2017, from http://www.ingas.org.ua/index.files/Page4967.htm.
• [9] Küttner North America/Düker. (2017). Cokeless Cupola Furnaces: Economical and environmentally melting plants. Retrieved June 26, 2017, from http://www.kuttnerllc.com/ brochures/Cokeless_Cupola_Furnaces___KNA.pdf
• [10] Cherny, A.A. (1965). Gas cupola. USSR Certificate of authorship No. 167613. Moscow: State Committee on Inventions and Discoveries. (in Russian).
• [11] Grachev, V.A. (2016). Production of high quality cast iron in a gas cupola furnace. International Journal Applied Engineering Research. 11(22), 10849-10856.
• [12] Kurbatsky, I.L., Cherny, A.A., Marienbakh, L.M. (1967). Procédé de fusion d’un métal et cubilot pour le realizer. Brevet D’invention N 693685. Belgium. (in French).
• [13] Marienbakh, L.M., Cherny, A.A., Kurbatsky, I.L. (1967). Procédé d’eloboration d’un métal et cubilot pour la réalisation de ce proceed. Brevet D’invention N 693498. Belgium. (in French).
• [14] Cherny, A.A., Marienbakh, L.M. (1967). Procédéd’elaboraton d’un metal et dispositive pour sa mise en oeuvre. Brevet D’invention N 1156272, cl. B22d 11/00. France. (in French).
• [15] Tcherny, A.A., Marienbakh, L.M. (1967). Procédé et dispositive de fusion d’un métal et leurs diverses applecations. Brevet D’invention N 1.518.819 Cl. C218. France. (in French).
• [16] Cherny, A.A., Marienbakh, L.M., Kurbatsky, I.L. (1968). Forno metallugico a cupola a gas particolarmente per la fusion di metallic. Brevetto per invenzione industriale N 810496. Italy. (in Italian).
• [17] Cherny, A.A., Marienbakh, L.M., Kurbatsky, I. L. (1969). Sätt och kupolugn för smältning av metal varvid elektrisk energy och gasformigt bränsle samtidigt användes som värmekälla. Sweden certificate N 307420. Cl. F 27c 1/10 Kl 31 a2 1/10. Sweden. (in Swedish).
• [18] Sosnovsky, E.D., Kurbatsky, I.L., Pavlenko, N.S. (1967). A method of treating molten metal and a gas cupola furnace for effecting same. Patent specification N 1157258. UK.
• [19] Grachev, V.A. (2016). Thermodynamic characteristics of phase interaction during melting of cast iron under conditions of temperature fluctuations. International Journal of Applied Engineering Research. 11(13), 8075-8079.
• [20] Grachev, V.A. (2016). Quality of cast iron smelted in a gas cupola furnace as a constructional material. International Journal of Applied Engineering Research. 11(13), 8062- 8066.
• [21] Grachev, V.A. (2017). Features of gas combustion in smelting cast iron. Ggazovaya promyshlennost'. 3(749), 94- 100. (in Russian).

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).