CN102435529A - Method for measuring content of elements in slag steel - Google Patents
Method for measuring content of elements in slag steel Download PDFInfo
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- CN102435529A CN102435529A CN2011102704621A CN201110270462A CN102435529A CN 102435529 A CN102435529 A CN 102435529A CN 2011102704621 A CN2011102704621 A CN 2011102704621A CN 201110270462 A CN201110270462 A CN 201110270462A CN 102435529 A CN102435529 A CN 102435529A
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Abstract
The invention discloses a method for measuring content of elements in slag steel, which belongs to the field of metallurgy. The method comprises the following steps of: (1) selecting the slag steel, weighing the slag steel and recording the weight as m, meanwhile, detecting water content in the slag steel and recording the water content as p; (2) placing the weighed slag steel in a medium frequency furnace for smelting, after smelting the whole slag steel, extracting a slag sample and a steel sample respectively; (3) performing element content analysis to the slag sample and the steel sample according to a routine test method respectively; (4) after completion of smelting, pouring out steel slag from molten steel, cooling the steel slag, weighing the cooled steel slag and recording the weight of the cooled steel slag as m1; pouring the molten steel into a mould, cooling the molten steel, weighing the cooled molten steel and recording the weight of the cooled molten steel as m2; and (5) calculating content of elements in the slag steel by the following calculation formula: Formula. The method is simple and accurate, and can solve the problem that the data of the content of the elements in the steel slag measured by using spectrometry in iron and steel enterprises is inaccurate, and provide an accurate basis for a process of returning and smelting the slag steel.
Description
Technical field:
The invention belongs to field of metallurgy, be specifically related to a kind of method of measuring constituent content in the slag steel.
Background technology:
The slag steel produces in smelting tapping process, and molten steel inevitably mixes back cooled and solidified formation with slag in the deslagging process.Because of production process steel and slag mix, the cooling back forms hard solid, and quality is inhomogeneous, makes that element is difficult in the slag steel to measure.
The surface irregularity of slag steel and have hole can't grind the plane, uses traditional spectroscopic methodology to be difficult to accurately measure constituent content;
And chemical method is only can grind the back a little to the sampling of small dreg piece steel to measure, because sampling amount is few, and an often degree, larger of slag steel is gone up in industry, though use this method result to measure accurately, result of laboratory test is to a large amount of under-represented with big degree slag steel.
Summary of the invention:
The present invention provides a kind of simply and accurately method of measuring slag steel constituent content, and the slag composition of steel is accurately measured, and for steel industry provides accurate foundation to the use of slag steel, makes its recycle realize scientific, accuracy.
Technical scheme of the present invention is:
1, the method for a small amount of multidraw of employing is chosen representative slag steel and is weighed, and is designated as m, detects water cut in the slag steel simultaneously, is designated as p.
2, the slag steel after will weighing is put into intermediate frequency furnace and is carried out melting, treats that the slag steel all after the fusing, extracts slag specimen, steel appearance respectively, respectively slag specimen, the steel appearance of taking out is done constituent content analysis according to the routine test method.
3, treat that melting is accomplished after, slag is poured out from molten steel, weigh after the slag cooling, be designated as m
1Molten steel is poured in the mould, weighed after the cooling, be designated as m
2
4, calculate each constituent content in the slag steel, computing formula is:
Annotate: X---represent certain element;
0.97---loss in weight correction factor (intermediate frequency furnace melting loss empirical value is 0.03).
The present invention is simple and accurate, has solved iron and steel enterprise's slag composition of steel and has used the inaccurate problem of spectroscopic methodology data, for the slag steel returns smelting procedure accurate foundation is provided.
Embodiment
Embodiment:
Get slag steel 300Kg in solid slag division department of processing factory of Shanxi Taigang Stainless Steel Co., Ltd, deliver to the intermediate frequency furnace experimental furnace and melt, fusing time is 1 hour;
Molten steel, slag taken a sample respectively send laboratory chemical examination;
At last slag is poured in the slag pan, molten steel is poured in the mould;
Weigh after the cooling, slag is 238Kg, and molten steel is 55.5Kg;
Detect steel ingot, slag specimen article composition is following:
Table one steel ingot sample ingredient analysis result %
The constituent analysis of table two slag specimen is % as a result
Basic shaft furnace project smelting requirements; Fe, S, three kinds of elements of P in the slag steel are measured; Bring formula into:
calculate after, the result is following:
TFe=（238×0.96316+55.5×0.0912）/0.97×300×（1-0.0066）=80.82%
S%=（238×0.0011+55.5×0.001）/0.97×300×（1-0.0066）=0.11%
P%=（238×0.00064+55.5×0.0022）/0.97×300×（1-0.0066）=0.095%。
Claims (1)
1. a method of measuring constituent content in the slag steel is characterized in that comprising the steps:
(1), choose the slag steel and weigh and be designated as m, detect simultaneously that water cut is designated as p in the slag steel;
(2), the slag steel after will weighing puts into intermediate frequency furnace and carries out melting, treats that the slag steel all after the fusing, extracts slag specimen, steel appearance respectively;
(3), respectively slag specimen, steel appearance are done constituent content analysis according to the routine test method;
(4), treat after melting is accomplished slag to be poured out from molten steel, weighing after the slag cooling is designated as m
1Molten steel is poured in the mould, and weighing after the cooling is designated as m
2
(5), calculate each constituent content in the slag steel, computing formula is:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011102704621A CN102435529A (en) | 2011-09-14 | 2011-09-14 | Method for measuring content of elements in slag steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102704621A CN102435529A (en) | 2011-09-14 | 2011-09-14 | Method for measuring content of elements in slag steel |
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| CN102435529A true CN102435529A (en) | 2012-05-02 |
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| CN2011102704621A Pending CN102435529A (en) | 2011-09-14 | 2011-09-14 | Method for measuring content of elements in slag steel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502558A (en) * | 2014-12-18 | 2015-04-08 | 本钢板材股份有限公司 | Method for detecting iron content of steel slag by utilizing electroslag remelting |
| CN107036928A (en) * | 2017-06-13 | 2017-08-11 | 北京中科领向环保研究院有限公司 | A kind of method for detecting slag chats phase content |
| CN108760558A (en) * | 2018-04-10 | 2018-11-06 | 唐山新宝泰钢铁有限公司 | For detecting the method for ingredient and water rate measurement method in steel hot wafering |
| CN111896417A (en) * | 2020-06-19 | 2020-11-06 | 马鞍山钢铁股份有限公司 | Method for detecting content of metallic iron in briquetting grain steel |
| CN113720725A (en) * | 2021-08-31 | 2021-11-30 | 重庆钢铁股份有限公司 | Method for detecting particle steel |
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| CN1690688A (en) * | 2004-04-29 | 2005-11-02 | 宝山钢铁股份有限公司 | Method for detecting speed of melting of protecting slag |
| CN101149322A (en) * | 2007-10-30 | 2008-03-26 | 中冶宝钢技术服务有限公司 | Method for determining steel slag derusting abrasive material ash content |
| CN102175621A (en) * | 2010-12-18 | 2011-09-07 | 山西太钢不锈钢股份有限公司 | Method for testing content of metal in stainless steel slag |
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2011
- 2011-09-14 CN CN2011102704621A patent/CN102435529A/en active Pending
Patent Citations (3)
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| CN1690688A (en) * | 2004-04-29 | 2005-11-02 | 宝山钢铁股份有限公司 | Method for detecting speed of melting of protecting slag |
| CN101149322A (en) * | 2007-10-30 | 2008-03-26 | 中冶宝钢技术服务有限公司 | Method for determining steel slag derusting abrasive material ash content |
| CN102175621A (en) * | 2010-12-18 | 2011-09-07 | 山西太钢不锈钢股份有限公司 | Method for testing content of metal in stainless steel slag |
Non-Patent Citations (1)
| Title |
|---|
| 李建军等: "不锈渣钢成分的测定", 《山西冶金》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502558A (en) * | 2014-12-18 | 2015-04-08 | 本钢板材股份有限公司 | Method for detecting iron content of steel slag by utilizing electroslag remelting |
| CN104502558B (en) * | 2014-12-18 | 2016-08-24 | 本钢板材股份有限公司 | Utilize electroslag remelting to the method detecting slag iron-holder |
| CN107036928A (en) * | 2017-06-13 | 2017-08-11 | 北京中科领向环保研究院有限公司 | A kind of method for detecting slag chats phase content |
| CN108760558A (en) * | 2018-04-10 | 2018-11-06 | 唐山新宝泰钢铁有限公司 | For detecting the method for ingredient and water rate measurement method in steel hot wafering |
| CN111896417A (en) * | 2020-06-19 | 2020-11-06 | 马鞍山钢铁股份有限公司 | Method for detecting content of metallic iron in briquetting grain steel |
| CN113720725A (en) * | 2021-08-31 | 2021-11-30 | 重庆钢铁股份有限公司 | Method for detecting particle steel |
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Application publication date: 20120502 |