FIELD: metallurgy.
SUBSTANCE: heating system comprises a heating device and a bucket hopper, at least, one extraction unit for extracting gases from the interior. At the same time, the gas expander for extracting gases through the exhaust system has, at least, one exhaust channel passing through it, with an inlet, through which gases penetrate the exhaust duct. The inlet is provided on one of the inner hopper sides facing the interior space. In this case, the difference in altitude between the highest point of the inlet and the lowest point of the bottom is not more than 0.8 from the greatest extent of the interior space in height.
EFFECT: improving the efficiency of the gas removal from the hopper interior.
7 cl, 2 dwg
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