Generating device and method for hot air in front of blast furnace, iron smelting device and method and iron
A technology for generating devices and smelting devices, which is applied to blast furnaces, blast furnace details, blast furnace parts, etc., and can solve problems such as the reduction of heat income of blast furnaces
Inactive Publication Date: 2016-10-12
SHOUGANG CORPORATION
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Problems solved by technology
In the process of increasing oxygen enrichment, the volume of combustion products required per ton of iron decreases, so the heat brought in by the blast also decreases, reducing the overall heat income of the blast furnace
Method used
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Embodiment Construction
[0042] In order to solve the problems existing in the prior art, the present invention provides a hot blast generating device and method in front of a blast furnace, an iron smelting device and method, and iron, which can realize Slow down the oxidation rate of the defect position on the inner wall of the hot blast stove shell, so that it is more suitable for practical use.
[0043] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the Gaoluxi hot air generation device and method, iron smelting device and method and iron , its specific implementation, structure, features and effects are described in detail below. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
[0044] The term "and / or...
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The invention discloses a generating device and method for hot air in front of a blast furnace, an iron smelting device and method and iron and belongs to the technical field of blast furnace iron smelting. The hot air generating device comprises a hot air system, an oxygen system, a hot air pipeline, a first oxygen pipeline and a mixing pipeline. The hot air generating method is achieved based on the hot air generating device. The smelting device comprises the hot air generating device, a main hot air pipe and the blast furnace. The smelting method is achieved based on the smelting device. The iron is smelted through the smelting method in the smelting device. By means of the hot air generating device and method and the iron smelting device and method, the oxidation rate of a defect position of the inner wall of a hot blast furnace shell can be reduced while the generation amount of nitrogen oxides in the hot blast furnace is reduced in the iron smelting process.
Description
technical field [0001] The invention relates to the technical field of blast furnace ironmaking, in particular to a device and method for generating hot air in front of a blast furnace, an iron smelting device and method, and iron. Background technique [0002] Oxygen-enriched blast is a measure to add industrial oxygen to the hot air used in the blast furnace to achieve the oxygen content of the hot air exceeding the oxygen content of the atmosphere. Due to the increase of the oxygen content in the blast, the air volume required per ton of iron is correspondingly reduced. Under the condition of keeping the air volume into the furnace unchanged, it is equivalent to increasing the air volume, thereby increasing the output and improving the smelting intensity. In the process of increasing oxygen enrichment, the volume of combustion products required per ton of iron is reduced, so the heat brought in by the blast is also reduced, which reduces the overall heat income of the bl...
Claims
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IPC IPC(8): C21B9/00C21B5/00
CPCC21B9/00C21B5/00
Inventor 孙健陈辉刘文运武建龙梁海龙王伟张贺顺任立军熊军苏殿昌赵君岩
Owner SHOUGANG CORPORATION