C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
39/66
C21B 7/00 (2006.01)
Patent
CA 1160046
ABSTRACT OF THE DISCLOSURE The aeration feeder for supplying pulverized coal to a blast furnace hearth comprises an aeration chamber provided with a valve gear screen disposed thereacross, a discharging pipe provided with a discharging door disposed on a side surface of an end of this pipe located within the aeration chamber, a locking and regulating element telescopically inserted into said pipe and provided with a hollow rod, and periodically shutting off the discharging door. According to the invention, the locking and re- gulating element is made in the form of a rotating bush provided with calibrated openings on the side surface thereof, said open- ings alternatively communicating with the discharging door pro- vided in the discharging pipe.
390646
Braga Vitaly V.
Chemikosov Mikhail V.
Kamardin Alexei M.
Lifenko Nikolai T.
Lukyanchenko Leonid F.
Donetsky Nauchno-Issledovatelsky Institut Chernoi Metallurgii
Donetsky Politekhnichesky Institut
Marks & Clerk
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