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Результаты исследований: Вклад в журнал › Статья › Рецензирование
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TY - JOUR
T1 - Change of the Mineral Wool Cupola Operating Conditions During the Transition from the Open Gas Flow Mechanism to the Closed One
AU - Matyukhin, V. i.
AU - Matyukhina, A. v.
PY - 2023/9/1
Y1 - 2023/9/1
N2 - The widespread industrial use of cupola-type shaft furnaces requires controlling their gas-dynamic and thermal behavior. When a cupola operates with an open top, its thermal regime is characterized mainly by the peripheral flow of gases with a significant difference in the ratio of the heat capacity of gas flows to material thermal capacity. The use of forced removal of exhaust gases from the shaft furnace contributes to an earlier transition from a peripheral to a predominantly central gas flow mechanism. By increasing the degree of rarefaction at the furnace top to 0.71 – 0.73 bar, it is possible to increase the melt temperature, pressure in the furnace cavity, temperature and air blast flow, as well as exhaust gas temperature while improving the conditions of heat transfer between gases and heated materials. A continuous decrease in the productivity of the unit accompanies this process, while the melting process stability improves. A further increase in the degree of rarefaction at the top contributes to a gradual transition from the peripheral to the central gas flow mechanism with a deterioration in cupola melting performance.
AB - The widespread industrial use of cupola-type shaft furnaces requires controlling their gas-dynamic and thermal behavior. When a cupola operates with an open top, its thermal regime is characterized mainly by the peripheral flow of gases with a significant difference in the ratio of the heat capacity of gas flows to material thermal capacity. The use of forced removal of exhaust gases from the shaft furnace contributes to an earlier transition from a peripheral to a predominantly central gas flow mechanism. By increasing the degree of rarefaction at the furnace top to 0.71 – 0.73 bar, it is possible to increase the melt temperature, pressure in the furnace cavity, temperature and air blast flow, as well as exhaust gas temperature while improving the conditions of heat transfer between gases and heated materials. A continuous decrease in the productivity of the unit accompanies this process, while the melting process stability improves. A further increase in the degree of rarefaction at the top contributes to a gradual transition from the peripheral to the central gas flow mechanism with a deterioration in cupola melting performance.
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85186238694
UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=001170464900001
U2 - 10.1007/s11148-024-00834-4
DO - 10.1007/s11148-024-00834-4
M3 - Article
VL - 64
SP - 251
EP - 255
JO - Refractories and Industrial Ceramics
JF - Refractories and Industrial Ceramics
SN - 1083-4877
IS - 3
ER -
ID: 53848539