26-05-2023 дата публикации
Номер: CN116162751A
Автор:
LONG MENG,
ZHAO YUNJIAN,
ZOU ZHONGPING,
ZHENG JUN,
XIONG SHIGEN,
HOU SHIFENG,
WANG GANG,
NIU QUN,
HE KUN,
XU JUN,
HE MAOCHENG,
LI MUMING
Принадлежит:
The invention relates to a method and device for injecting hydrogen-rich gas into a blast furnace, and belongs to the technical field of blast furnace injection. According to the method, hot air is used for preheating hydrogen-rich gas, and the preheated hydrogen-rich gas and the hot air are mixed and then enter a blast furnace together; the device comprises a flange, a steel shell, a refractory material, an end, a hot air channel and a blowing channel, the refractory material is located in the steel shell, and the hot air channel and the blowing channel are formed in the refractory material. The device has the beneficial effects that by adopting the spiral injection channel, the preheating time of the hydrogen-rich gas and the hot air can be greatly prolonged, the temperature of the hydrogen-rich gas is increased to a certain extent, the injection effect of the hydrogen-rich gas is greatly improved, and carbon reduction and consumption reduction of the blast furnace are realized.
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