An economic evaluation model for furnace protection of titanium-containing materials
A technology for economical evaluation and materials, which is applied in the field of economical evaluation model for furnace protection of titanium-containing materials, and can solve problems such as increasing the cost of molten iron
Active Publication Date: 2019-06-18
UNIV OF SCI & TECH BEIJING
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Problems solved by technology
However, blast furnace protection will increase the cost of molten iron. How to choose cost-effective titanium-containing materials is the focus of attention of iron-making operators.
Method used
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Embodiment 1
[0068] This embodiment relates to an economic evaluation model for furnace protection of titanium-containing materials, and the economic evaluation model for furnace protection of titanium-containing materials is carried out according to the following steps:
[0069] Step 1, obtaining the lower limit of titanium content in molten iron: according to the matching relationship between the temperature of the thermocouple and the titanium content in molten iron when protecting the blast furnace, the range of titanium content in molten iron during furnace protection is obtained, and the lower limit of the titanium content in molten iron is taken;
[0070] Step 2. Obtain the maximum titanium distribution ratio: Calculate and count the titanium distribution ratio according to the data in the blast furnace operating parameter report, so as to obtain the maximum titanium distribution ratio, that is, the situation when titanium enters the molten iron from the slag to the greatest extent ;...
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The invention belongs to the technical field of blast furnace long-life furnace protection, and particularly relates to a titanium-containing material furnace protection economic evaluation model. Thetitanium-containing material furnace protection economic evaluation model is characterized in that the titanium content in furnace slag is obtained through calculation by obtaining the titanium distribution ratio maximum value and the titanium content lower limit in iron melt; further, the furnace protection economic titanium load is calculated through titanium balance according to the titanium content lower limit of the iron melt and the titanium content in the furnace slag; under the condition that the consumption of basic raw materials is not changed, the blast furnace protection cost is calculated. The titanium-containing material furnace protection economic evaluation model has the advantages that the economical performance of titanium-containing materials can be systematically evaluated; the guide is provided for selecting economic and efficient titanium-containing materials for ironmaking operators.
Description
technical field [0001] The invention belongs to the technical field of long-life furnace protection of blast furnaces, and in particular relates to an economic evaluation model for furnace protection of titanium-containing materials. Background technique [0002] The blast furnace is made of steel plate as the furnace shell, and the shell is lined with refractory bricks. From top to bottom, the blast furnace body is divided into five parts: the furnace throat, the furnace body, the furnace waist, the furnace bosh, and the hearth. Due to the good technical and economic indicators of blast furnace ironmaking, simple process, large production volume, high labor production efficiency, and low energy consumption, the iron produced by this method accounts for the vast majority of the world's total iron production. [0003] With the continuous improvement of ironmaking technology, high efficiency and long life of blast furnaces have gradually become the development trend of modern...
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IPC IPC(8): C21B5/00
CPCC21B5/00C21B5/008
Inventor 焦克新邓勇张建良刘征建王广伟
Owner UNIV OF SCI & TECH BEIJING