Large-scale high-blast-temperature ball-type hot blast furnace

• Main Authors: TENG SHUMAN, ZHANG HONGBO, YAN MING, LI JUN, ZHAO ZEWEN, WEI TAO, WU JIANLIN, FENG FEI, HUANG QINGZHOU, XIAO FENG, LONG HUBANG, LIU WEIDONG
• Format: Patent
• Language: Chinese; English
• Published: 18.06.2014
• Subjects: CHEMISTRY; MANUFACTURE OF IRON OR STEEL; METALLURGY; METALLURGY OF IRON

The utility model discloses a large-scale high-blast-temperature ball-type hot blast furnace for providing hot blast of more than 1250 DEG C for a blast furnace of which the volume is more than 2000 m . The furnace body of a hot blast furnace has a six-section type structure. Double flue gas outlets and cold air inlets are formed in the lower part of an air inlet chamber; a hot air outlet is formed in the lower part of a burner; a ball bed in a heat accumulation chamber has a four-section type structure, and the diameter of the ball bed is phi9.2-phi10.2m, wherein the four-section type structure comprises a phi75 or phi80 ceramic base aluminum-zirconium-chromium ball type I of which the height is 2-2.5m, a phi60 ceramic base aluminum-zirconium-chromium ball type II of which the height is 3.5-4m, a phi50 or phi40 high-strength high-alumina ball of which the height is 4.5-5.5m, and a phi60 or phi75 high-strength high-alumina ball of which the height is 3.2-3.6m; the upper part of the ball bed adopts the ceramic