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Establishment method for calculation method for influence of harmful elements on blast furnace fuel ratio

A technology of harmful elements and establishment methods, applied in blast furnaces, calculations, blast furnace details, etc., to achieve the effects of good verifiability, reduction of ironmaking costs, and accurate calculation values

Active Publication Date: 2018-06-22
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

However, there are few studies on the influence of harmful elements on the blast furnace fuel ratio and energy utilization. In order to show the influence law of harmful elements on the blast furnace fuel ratio, this invention proposes a calculation based on the physical and chemical properties of harmful elements and the actual environment in the blast furnace method

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  • Establishment method for calculation method for influence of harmful elements on blast furnace fuel ratio
  • Establishment method for calculation method for influence of harmful elements on blast furnace fuel ratio
  • Establishment method for calculation method for influence of harmful elements on blast furnace fuel ratio

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Embodiment Construction

[0029] The above content of the present invention will be further described in detail below in conjunction with the specific implementation manner of specific implementation examples:

[0030] A calculation method of the influence of harmful elements on the fuel ratio of a blast furnace according to the present invention, the method specifically comprises the following steps:

[0031] First of all, the iron-containing materials entering the blast furnace are tested and analyzed to determine the chemical composition of the iron-containing materials: Fe in the iron-containing raw materials entering the furnace 2 o 3 Content w(Fe 2 o 3 ), FeO content w(FeO), iron ore grade w(TFe); the composition of molten iron in iron and steel enterprises w [Si] 、w [Mn] 、w [P] 、w (S) ; Blast parameters in the normal production process of the blast furnace, air volume V, oxygen enrichment rate Composition of blast furnace top gas

[0032] Secondly, use the following formula to calcula...

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Abstract

The invention discloses an establishment method for a calculation method for the influence of harmful elements on a blast furnace fuel ratio, belongs to the field of new technology of ironmaking, andsolves the problem that iron ore with a high harmful element content. The method puts forward a concept of the influence of the harmful elements for the blast furnace fuel ratio on the basis of the periodic enrichment behaviors of harmful elements including alkali metal, zinc, lead and the lie. The influence rule of four common harmful elements Na, K, Zn and Pb of blast furnace smelting is determined, and a calculation method of the harmful elements for the blast furnace fuel ratio is established. Since the above technical scheme is adopted, the method can accurately calculate the influence degree of the harmful elements for the blast furnace fuel ratio, and has an important guidance meaning for iron and steel enterprises to evaluate ''economic furnace burden'' value. Meanwhile, for corresponding index revision, the method also can be used for calculating the influence of other harmful elements on the blast furnace fuel ratio.

Description

technical field [0001] The invention belongs to the new technology field of ironmaking, and relates to a calculation method for the influence of harmful elements on the fuel ratio of a blast furnace, in particular to a method for establishing a calculation method for the influence of harmful elements on the fuel ratio of a blast furnace. Background of the invention [0002] In recent years, due to the excessive production capacity of Chinese iron and steel enterprises, the entire iron and steel industry is facing the environment of reducing production capacity and ensuring survival. In order to reduce production costs, various iron and steel enterprises have adopted "economical furnace materials" and used a large number of low-quality ore with high harmful element content, resulting in blast furnaces entering the country. Furnace load of harmful elements continues to rise. [0003] Predecessors have done a lot of research on the impact of harmful elements on blast furnace pr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/04C21B5/00
CPCC21B5/00G06Q10/0639G06Q50/04Y02P90/30
Inventor 张建良焦克新王一杰刘征建王广伟邓勇王翠
Owner UNIV OF SCI & TECH BEIJING
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