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An accurate, reliable, simple and rapid detection method for silicon, sulfur and phosphorus elements in steel-making exothermic agents

A detection method and heating agent technology, which is applied in the detection of silicon, phosphorus and sulfur in steelmaking heating agents, can solve the problems of long detection period, high cost, poor anti-interference, etc. High, high emission intensity effect

Active Publication Date: 2016-08-24
WUKUN STEEL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wet analysis method is the most commonly used method in traditional analysis and detection methods. It requires chemical analysis of each element to be measured in the heating agent, which not only has a long detection cycle, poor anti-interference performance, and relatively high cost, it is increasingly unsuitable for The need for fast-paced industrial production development

Method used

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  • An accurate, reliable, simple and rapid detection method for silicon, sulfur and phosphorus elements in steel-making exothermic agents
  • An accurate, reliable, simple and rapid detection method for silicon, sulfur and phosphorus elements in steel-making exothermic agents
  • An accurate, reliable, simple and rapid detection method for silicon, sulfur and phosphorus elements in steel-making exothermic agents

Examples

Experimental program
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Effect test

Embodiment 1

[0044] A. Standard sample preparation: According to the concentration range of silicon, sulfur, and phosphorus elements in the steelmaking heating agent, select samples with different concentration gradients of each element, and the concentration gradient values ​​are shown in the following table:

[0045]

[0046] The silicon, sulfur and phosphorus elements of each sample were quantitatively analyzed by volumetric method, and the average value of three analyzes was taken, and the sample whose concentration was determined by quantitative analysis was used as the standard sample.

[0047] B. Drawing of the working curve: Dry 50g of the standard sample at 108°C for 60 minutes until it is absolutely dry, mix the standard sample with ethyl cellulose at a mass ratio of 1:0.07, add 2 drops of absolute ethanol, and put it in the grinding pool Grind for 100s and pass through a 200-mesh sieve to obtain the standard sample powder to be tested, then press it under a pressure of 40t for...

Embodiment 2

[0060] A, standard sample preparation: according to the concentration range of silicon, sulfur, phosphorus element in the heating agent of steelmaking, select the sample of different concentration gradient of each element, its concentration gradient value is the same as embodiment 1, adopt volumetric method to calculate the silicon content of each sample. , sulfur, and phosphorus elements were quantitatively analyzed, and the average value of three analyzes was taken, and the sample whose concentration was determined by quantitative analysis was used as the standard sample.

[0061] B. Working curve drawing: Dry 50g of the standard sample at 105°C for 65min until it is absolutely dry, mix the standard sample with boric acid at a mass ratio of 1:0.05, add 2 drops of absolute ethanol, and grind in the grinding pool for 10s. Pass through a 100-mesh sieve to obtain the standard sample powder to be tested, and then press it under a pressure of 5t for 50s to obtain a standard sheet; ...

Embodiment 3

[0073] A, standard sample preparation: according to the concentration range of silicon, sulfur, phosphorus element in the heating agent of steelmaking, select the sample of different concentration gradient of each element, its concentration gradient value is the same as embodiment 1, adopt volumetric method to calculate the silicon content of each sample. , sulfur, and phosphorus elements were quantitatively analyzed, and the average value of three analyzes was taken, and the sample whose concentration was determined by quantitative analysis was used as the standard sample.

[0074] B. Drawing the working curve: Dry 50g of the standard sample at 110°C for 55min until it is completely dry, mix the standard sample with methyl cellulose at a mass ratio of 1:0.09, add 1 drop of absolute ethanol, and put it in the grinding pool Grind for 180s and pass through a 200-mesh sieve to obtain the standard sample powder to be tested, and then press it under a pressure of 45t for 5s to obtai...

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Abstract

The invention discloses an accurate, reliable, simple and rapid detection method for silicon, sulfur and phosphorus elements in a steel-making heating agent, and belongs to the technical field of metallurgical material testing and analysis. First, the samples with different concentration gradients of each element are quantified by wet analysis method and then used as standard samples; the standard sample is mixed with the binder at a mass ratio of 1:0.05~0.09, ground for 10~180s, and passed through a 100~200 mesh sieve , pressed for 5-50s under a pressure of 5-45t to obtain a standard sheet; the standard sheet was analyzed by an X-ray fluorescence spectrometer, and a working curve was established in combination with the quantitative analysis value; ‑Ray fluorescence spectrometer for analysis, combined with the working curve, to obtain the detection results of silicon, sulfur and phosphorus element content. The method described in the present invention is accurate and reliable, has good reproducibility, high stability, simple and fast operation, is suitable for rapid determination of large batches of samples, provides real-time analysis data for industrial production, and is beneficial for enterprises to improve product quality, reduce costs and increase efficiency. The value of promotion and application is high.

Description

technical field [0001] The invention belongs to the technical field of testing and analysis of metallurgical materials, and in particular relates to an accurate, reliable, simple and rapid detection method for silicon, sulfur and phosphorus elements in a heating agent for steelmaking. Background technique [0002] The exothermic agent used in the iron and steel smelting process contains a certain amount of silicon, sulfur, and phosphorus elements. The content and ratio of these elements will affect the exothermic effect of the exothermic agent, and further affect the iron and steel smelting process, yield and product quality. Significant influence. Wet analysis method is the most commonly used method in traditional analysis and detection methods. It requires chemical analysis of each element to be measured in the heating agent, which not only has a long detection cycle, poor anti-interference performance, and relatively high cost, it is increasingly unsuitable for The needs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/223
Inventor 段家华赵征宇马林泽李洁杨文龙严海何晓凤孔翠芬杨发文
Owner WUKUN STEEL
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