Annular-gap washer for a high-pressure blast furnace

Details Annular-gap washer for a high-pressure blast furnace Annular-gap washer for a high-pressure blast furnace

B - Operations, Transporting

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D

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B01D 47/10 (2006.01) C21B 7/22 (2006.01)

Patent

CA 1081115

ABSTRACT OF THE DISCLOSURE The gascleaning apparatus for a blast furnace operating under pressure using a differential-pressure washing arrangement whereby the differential-pressure washer comprises at least one annular gap with an annular-gap passage and an axially adjustable body received in the annular gap washer. The nozzle is disposed upstream of-the annular-gap washer to spray the washing liquid into the gas which is accelerated through the annular gap. The position of this body is controlled in response to the gas pressure within the head of the blast furnace. The annular gap of the washer diverges in the direction of flow of the gas and the body has a complementary shape so that the gap width remains generally constant although its flow cross section increases with the diameter of the annular gap in the direction of flow of the gas.

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