Method for rapidly detecting content of SiO2 and/or CaO in resource sample
A sample and resource technology, which is applied in the field of rapid detection of SiO2 and/or CaO content in resource samples, can solve the problems of detection of chemical content and inability to achieve the effects of less manpower consumption, increased use times, and meeting production requirements
Pending Publication Date: 2021-12-31
BEIJING SHOUGANG CO LTD
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Problems solved by technology
[0005] The application provides a rapid detection of SiO in resource samples 2 And / or the method of CaO content, in order to solve the SiO in solid secondary resource sample that cannot be detected by fluorescence method 2 and / or technical issues with CaO chemical content
Method used
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[0068] As an optional implementation, the method also includes:
[0069] According to the chemical composition of the sample to be tested, determine various standard samples, and obtain the SiO 2 and / or CaO content;
[0070] SiO according to the various standard samples 2 and / or CaO content to generate SiO 2 and / or CaO standard curve;
[0071] The various standard samples include slag standard samples and iron ore standard samples.
[0072] As an optional implementation, SiO in the sample to be tested 2 And / or the calculation expression of the content of CaO is:
[0073] M=m 2 ×(100-ω) / 100
[0074] In the formula, M is the SiO in the sample to be tested 2 or the mass content of CaO, m 2 SiO in the frit 2 Or CaO detection value, ω is the burning loss value.
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The invention relates to the technical field of solid secondary resource sample detection, in particular to a method for rapidly detecting the content of SiO2 and / or CaO in a resource sample. The method comprises the following steps: burning and oxidizing a to-be-detected sample to obtain a primary oxidation sample; obtaining a burning loss value of the to-be-tested sample according to the to-be-tested sample and the primary oxidation sample; mixing the primary oxidation sample with a fluxing agent and an oxidizing agent, performing melting, and reducing the melting temperature of the primary oxidation sample under the combined action of the fluxing agent and the oxidizing agent to obtain a secondary oxidation sample; obtaining SiO2 and / or CaO standard curves of various standard samples containing SiO2 and CaO; and detecting the secondary oxidation sample by using a fluorescence method to obtain the content of SiO2 and / or CaO in the to-be-detected sample. Therefore, the use frequency of the yellow platinum crucible is increased, the melting temperature of the primary oxidation sample is reduced, and the to-be-detected sample can be detected by using the fluorescence method; the fluorescence method is used for detection, detection and analysis time is shortened, and consumed manpower is less.
Description
technical field [0001] This application relates to the technical field of detection of solid secondary resource samples, in particular to a rapid detection of SiO in resource samples 2 and / or method of CaO content. Background technique [0002] In order to promote the comprehensive utilization of solid secondary resources and increase efficiency, and to carry out research on the production process of rotary kiln slag, it is urgent to complete the research on ironmaking dry process ash, gas ash, blended material, OG fine mud, fine ash, anhydrous sedimentation mud, and pipeline ash The detection of solid waste raw materials such as kiln slag and secondary zinc oxide and other finished products, the detection elements include more than ten kinds of iron, metallic iron, carbon, sulfur, calcium oxide, silicon dioxide, etc., which are affected by the content of silicon dioxide and calcium oxide The basicity index is particularly important to guide the production of rotary kiln. ...
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IPC IPC(8): G01N21/64G01N1/28G01N1/44
CPCG01N21/64G01N1/28G01N1/44Y02P10/20
Inventor 闫丽张广治王贵玉于春波贾晓红
Owner BEIJING SHOUGANG CO LTD