Stationary electrolyte concentration cell for measuring sulfur content of molten iron

A concentration-difference battery and solid electrolyte technology, applied in the field of electrochemistry, can solve problems such as insufficiency, achieve the effects of rapid pretreatment, reduce production costs, and improve desulfurization efficiency

Inactive Publication Date: 2007-07-04
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although there are already advanced wind-powered sample delivery and data transmission systems, it takes 5-8 minutes at the fastest from sampling to reporting of test results. Such an analysis process cannot meet the needs of modern smelting processes.

Method used

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  • Stationary electrolyte concentration cell for measuring sulfur content of molten iron
  • Stationary electrolyte concentration cell for measuring sulfur content of molten iron
  • Stationary electrolyte concentration cell for measuring sulfur content of molten iron

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Experimental program
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Embodiment Construction

[0024] The main index affecting the performance of solid electrolytes is the ionic conductivity of solid electrolytes. In addition, the densification degree of the solid electrolyte itself also has an important influence on the stability and reproducibility of the test electromotive force signal. The present invention chooses MgS-TiS 2 as a solid electrolyte. Its ratio is shown in Table 1,

[0025] solid electrolyte

components

Proportion

MgS-TiS 2

MGS

100

99.0

97.0

95.0

93.0

91

90

88

85

TiS 2

0

1.0

3.0

5.0

7.0

9.0

10.0

12

15

[0026] Solid Electrolyte MgS-TiS 2 Experimental process: Weigh the synthesized sulfides according to the proportion shown in Table 1, and mix them evenly. Press the mixed sulfide powder into a sample of 5×10mm at a pressure of 200MPa. Put the pressed solid electr...

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Abstract

The invention relates to fixed electrolyte concentration cell used to detect the content of sulfur in the molten iron that belongs to the electrochemistry field. The characteristics of fixed electrolyte concentration cell used to detect the content of sulfur in the molten iron are: the reference pole is Mo|Mo+MoS2, the solid electrolyte is MgS-TiS2, the content of TiS2 is 1-10%, the expression is Mo|Mo+MoS2|MgS-TiS2|[S]Fe|Mo, the [S]Fe|M is to be measured. The detecting sulfur probe can detect the sulfur content in the molten iron quickly and exactly, and the quick analysis can be realized, and the quick preprocess of molten iron can be done, and it improves the desulfurization efficiency, reduces the desulfurization cost and reduce the production cost in the steel-making course.

Description

(1) Technical field [0001] The invention relates to a fixed electrolyte concentration difference battery for measuring sulfur content in molten iron, which belongs to the field of electrochemistry. (2) Background technology [0002] At present, some main components in molten metal, such as carbon and oxygen, can basically realize dynamic measurement and control in the smelting process. However, there is no more effective direct determination method for sulfur, an element that has a great influence on the smelting process and product quality. In the actual production process, the method of obtaining the sulfur content of molten metal is very complicated, and generally requires steps such as sampling, sample delivery, sample preparation, analysis, and calculation. Although there are advanced wind-driven sample delivery and data transmission systems, it takes 5-8 minutes at the fastest from sampling to reporting of test results. Such an analysis process cannot meet the needs o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/406
Inventor 张立
Owner BAOSHAN IRON & STEEL CO LTD
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