Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Slag actual ingredient performance detection method for slag containing volatile components

A detection method and a technology of slag, applied in the direction of weighing by removing certain components, can solve problems such as the influence of accuracy, and achieve the effect of having reference value and accurate results of slag performance measurement

Pending Publication Date: 2016-03-30
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there are high-temperature volatile components in the slag, these components will continue to volatilize during the measurement process, resulting in continuous changes in the composition of the slag. The original slag composition is used as the corresponding slag, and its accuracy is affected)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Slag actual ingredient performance detection method for slag containing volatile components
  • Slag actual ingredient performance detection method for slag containing volatile components
  • Slag actual ingredient performance detection method for slag containing volatile components

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Dephosphorization slag containing sodium oxide, slag basic composition, melting point and weight loss measurement results are shown in Table 2. The sodium oxide in the sample is added in the form of sodium carbonate, the melting point is determined by the hemispherical melting point method, and the weight loss is measured by placing the sample in a crucible, hanging it for heating, and continuously measuring its weight change.

[0027] According to relevant research, the weight loss above 800°C is mainly caused by the volatilization of sodium oxide. The slag composition obtained after sodium oxide volatilization is shown in Table 3. That is to say, the corrected slag composition in Table 3 is the true composition of the slag corresponding to the measured melting point.

[0028] Table 2 Different dephosphorization slag components (%wt, mass percentage), melting point and weight loss measurement results

[0029]

[0030] Similarly, in the test of measuring slag visco...

Embodiment 2

[0033] During the reduction process of high-lead slag, with the change of the content of lead oxide and zinc oxide in the slag, the composition of the slag will continue to change, and then the properties of the slag will also be in constant change. Understanding the properties of slag is important for process control.

[0034] For the reduction process of high-lead slag, if the amount of zinc oxide, calcium oxide, silicon dioxide and ferrous oxide remains unchanged, the composition of the slag will change as shown in Table 4 with the reduction of lead oxide. The sample was analyzed by thermogravimetric-differential thermal device, and the results were as follows: figure 1 shown. The weight loss rate in each temperature range was measured and calculated, and the analysis results are shown in Table 5.

[0035] The slag composition (%wt, mass percentage) of the different lead reduction degree of table 4 preparation

[0036]

[0037] After analysis, it is considered that th...

Embodiment 3

[0041] ANF-6 slag for electroslag remelting, the specific composition is 70% CaF 2 -30%Al 2 o 3 .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Melting pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to a slag actual ingredient performance detection method for slag containing volatile components. The method comprises steps as follows: slag performance detection is performed, and slag performance parameters are obtained and include the melting point, the density, the viscosity, the surface tension, the electric conductivity and the heat conductivity; thermogravimetric measurement is performed, and a slag weight loss process is obtained; thermogravimetric measurement conditions are identical with slag performance detection conditions; the volatile components and / or volatile models of the slag in the performance detection process are determined according to slag original ingredients; in combination of the slag weight loss process with the volatile components and / or the volatile models, slag actual ingredients during slag performance detection are obtained through calculation; the slag performance parameters are performance parameters of the slag actual ingredients. With the adoption of the detection method, the problem that detection of the performance of the slag containing the volatile components is inaccurate can be effectively solved, and the measurement result of the performance of the slag is more accurate and has the higher reference value.

Description

technical field [0001] The invention relates to the detection of high-temperature performance of slag containing volatile components in pyrometallurgy, including fluorine-containing slag, high-lead slag, zinc-containing slag, etc. The method provided by this patent can obtain more accurate slag performance parameter values. This method can also be extended and applied to the performance determination of alloys containing volatile components. Background technique [0002] Slag performance control is an important aspect of pyro-smelting process control. For example, in iron and steel smelting, there is a saying that "steelmaking is slag". Therefore, it is of great significance to obtain the property data of metallurgical slag as accurate as possible for the smooth progress of the pyrometallurgy process and its process optimization. In addition to some slag itself containing volatile components (such as high-lead slag, zinc-containing slag, etc.), in order to meet the special ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 赵俊学葛蓓蕾党艳梅刘诗薇唐雯聃崔雅茹李小明
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com