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Method for utilizing X-ray fluorescence spectrophotometer to determine components of dust pellet

A fluorescence spectrometer and X-ray technology, applied in the field of analysis and measurement, can solve the problems of not being able to meet the requirements of rapid analysis of dust pellet smelting production, unable to use the calibration method of burning loss, and uncertain composition, so as to reduce the analysis cost, The effect of reducing contamination and improving precision and accuracy

Inactive Publication Date: 2013-10-23
ANGANG STEEL CO LTD
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  • Application Information

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Problems solved by technology

Due to the uncertain composition and many unknown components of dust pellets, this method of calibration of burning loss cannot be used
Therefore, the existing analysis methods and sample processing methods cannot meet the requirements of rapid analysis of dust pellet smelting production.

Method used

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  • Method for utilizing X-ray fluorescence spectrophotometer to determine components of dust pellet
  • Method for utilizing X-ray fluorescence spectrophotometer to determine components of dust pellet
  • Method for utilizing X-ray fluorescence spectrophotometer to determine components of dust pellet

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Experimental program
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Embodiment Construction

[0055] Below in conjunction with specific embodiment, the present invention is further described:

[0056] 1. Preparation of samples

[0057] The dust-mud pellet sample is crushed and ground to 150 mesh, and the mass of the sample after drying is not less than 10g.

[0058] 2. Correction of burning loss

[0059] 1) Weigh 1.0000g of the dust-sludge pellet sample into a porcelain ark, put it in a 600°C muffle furnace, gradually heat it up to 1000°C, burn it for 1 hour, take it out and cool it to room temperature in a desiccator.

[0060]Weighing and reading dust and mud pellets is 0.8934g, calculate the sample burning loss (Ig):

[0061] ∴Ig 尘泥球团 =10.66%

[0062] Select the flux mass dilution ratio of 1:12.5, and determine that the weight of the flux is 5g, then:

[0063]

[0064] Then the actual sample weighing after burning loss correction is:

[0065] ∴m 称尘泥 =0.4477g

[0066] Weigh in turn 5.0000 g of lithium tetraborate flux or lithium tetraborate-lithium meta...

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Abstract

The invention discloses a method for utilizing an X-ray fluorescence spectrophotometer to determine components of a dust pellet. The method comprises the following steps: 1) preparing a test sample; 2) correcting a burning loss amount; 3) establishing a working curve; and 4) measuring the test sample and calculating a burning loss correction result. The invention provides a novel correction and fusion sampling method of a burning loss amount and the method is simple and rapid to operate and can accurately analyze the components in the dust pellet.

Description

technical field [0001] The invention belongs to the technical field of analysis and measurement methods, and in particular relates to a method for quantitatively determining SiO in a dust-mud pellet sample with high carbon content and high burning loss by using X-ray fluorescence spectroscopy (XRF). 2 , Al 2 O 3 , CaO, MgO, MnO, P method. Background technique [0002] Dust sludge pellet is the product of iron-containing dust sludge after pelletizing or sintering. Iron-containing dust sludge is a large amount of dust and sludge produced by converters and electric furnaces in the steel production process. With the rapid increase of steel production, the discharge of slag, dust, mud and other wastes generated by the metallurgical process has also increased year by year. The fine dust and mud discharged from the dust removal system alone accounts for 3% to 5% of the steel output. At present, due to the increasingly strict environmental protection requirements and the pressur...

Claims

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Application Information

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IPC IPC(8): G01N23/223
Inventor 王一凌曲月华邓军华
Owner ANGANG STEEL CO LTD
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