CN104677685A - Method for sampling chemical components of metallurgical molten slag - Google Patents
Method for sampling chemical components of metallurgical molten slag Download PDFInfo
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- CN104677685A CN104677685A CN201510122334.0A CN201510122334A CN104677685A CN 104677685 A CN104677685 A CN 104677685A CN 201510122334 A CN201510122334 A CN 201510122334A CN 104677685 A CN104677685 A CN 104677685A
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Abstract
The invention discloses a method for sampling chemical components of metallurgical molten slag. The method comprises the following steps: laying molten slag on the horizontal ground in a rectangular shape, equally taking 20 intersection points in the rectangular molten slag in a four-row five-line cross point distribution mode; taking 3-5tons of molten slag at the intersection points, preliminarily crushing the sampled slag to be within 200mm, uniformly mixing, splitting into 35-45tons of preliminarily split samples by using inquartation; coarse crushing the preliminarily split samples to be within 70mm, laying the preliminarily split samples after coarse crushing on horizontal ground in a rectangular shape, equally taking 20 intersection points in the rectangular molten slag in a four-row five-line cross point distribution mode, taking 80-120kg of molten slag at the intersection points, mixing, splitting into 380-420kg of crude crushed samples by using inquartation; finely crushing the crude crushed samples to be within 3mm, uniformly mixing, splitting into 0.9-1.1kg of samples by using inquartation; and grinding till the granularity is less than 20 microns, uniformly mixing the molten slag, taking out 150g of detection samples by using inquartation, and carrying out a chemical analysis experiment. According to the method disclosed by the invention, molten analysis samples with representativeness can be smoothly taken out of large-scale molten slag, and the authenticity of the chemical analysis data of the metallurgical molten slag is guaranteed.
Description
Technical field
The present invention relates to chemical composition sampling field, especially a kind of be used in the quantity of slag larger time metallurgical cinder chemical composition sampling method.
Background technology
Normal containing many valuable metals in metallurgical cinder, there is very large practical value.Therefore, reality often carries out valuable metal dilution process by selling the producer with processing power outside metallurgical cinder in producing.When taking out metallurgical cinder, for evaluating the price of metallurgical cinder, the mensuration of metallurgical cinder chemical composition or valuable metal grade need be carried out.And the amount of metallurgical cinder is often larger, the quality of slag is greater than 1000t sometimes, so will assess the grade of smelting valuable metal in slag exactly just must select representative sample in enormous quantities smelting in slag, then carries out chemical composition analysis.But, at present still without a kind of sampling method being adapted to metallurgical cinder in enormous quantities, as can not be reflected the true chemical composition of metallurgical cinder in enormous quantities with existing metallurgical cinder sampling method.
Summary of the invention
The object of the invention is to overcome metallurgical cinder sampling defect in prior art, propose a kind of slag chemical composition sampling method being applicable to metallurgical cinder in enormous quantities, this sampling method ensure that the authenticity of metallurgical cinder chemical analysis data in enormous quantities.
In order to solve the problem, the technical solution used in the present invention is:
A sampling method for metallurgical cinder chemical composition, comprises the following steps:
(1) within slag being crushed to 600mm, be laid on level ground with rectangular shape, the tiling of slag is highly 400 ~ 600mm, and adopts transverse and longitudinal intersection cloth point mode decile in rectangle slag to get multiple point of crossing, carries out mark to each point of crossing;
(2) get 3 ~ 5t slag in the mark place sampling of described point of crossing successively, by within being crushed to 200mm at the beginning of slag particles degree after all samplings are merged into full-page proof, slag are mixed rear division method division to 35 ~ 45t and make just point sample;
(3) by within described just point sample coarse crushing to 70mm, slag after coarse crushing is laid on level ground with rectangular shape, tiling is highly 150 ~ 200mm, and adopt transverse and longitudinal intersection cloth point mode decile in rectangle slag to get multiple point of crossing, take out the slag of 80 ~ 120kg at each point of crossing place, slag is mixed rear division method division to 380 ~ 420kg and make coarse crushing sample;
(4) within described coarse crushing sample being continued fine crushing to 3mm, by the slag Homogeneous phase mixing after fine crushing, grind with after division method division to 0.9 ~ 1.1kg, the final abrasive grains degree of slag is less than 20 μm, after grinding, slag Homogeneous phase mixing is also carried out chemical analysis experiment with the detection sample that division method takes out 150g.
The interleaved mode that transverse and longitudinal intersection cloth point mode in described step (1), (3) adopts four lines five to arrange, selects 20 point of crossing.
Division method in described step (2), (3), (4) adopts inquartation division.
The beneficial effect that the present invention compared with prior art has is: arrange intersection by repeatedly four lines five and layout and sample quarterlies, successfully can take out representative slag and analyze sample from slag in enormous quantities, thus ensure that the authenticity of metallurgical cinder chemical analysis data in enormous quantities.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
For a sampling method for the metallurgical cinder chemical composition of 1000t, comprise the following steps:
The first step, within the slag of bulk is crushed to 600mm, be laid on level ground with rectangular shape, the tiling Altitude control of slag is within 400 ~ 600mm, and adopt four lines five row intersection cloth point mode decile in rectangle slag to get 20 point of crossing, and mark is carried out to each point of crossing.It is noted that point of crossing answers decile to be located in the rectangle frame of slag;
Second step, get 3 ~ 5t slag in the mark place sampling of described point of crossing successively, first remove the slag near mark during sampling, then choose the slag of point of crossing with forklift, slag near point of crossing place and point of crossing must be chosen totally during sampling, pulverous slag can not be left over.After all samplings are merged into full-page proof with Cinder crusher by within being crushed to 200mm at the beginning of slag particles degree, slag is mixed rear inquartation division and obtains 40.3t and make just point sample;
3rd step, by described just point sample by within disintegrating machine coarse crushing to 70mm, slag after coarse crushing is laid on level ground with rectangular shape, tiling is highly 150 ~ 200mm, adopt four lines five to arrange intersection cloth point mode decile in rectangle slag and get 20 point of crossing, the slag of 80 ~ 120kg is taken out successively at each point of crossing place, the slag near mark is first removed during sampling, choose the slag of point of crossing again, slag near point of crossing place and point of crossing must be chosen totally during sampling, pulverous slag can not be left over.Slag is mixed rear inquartation division to obtain 411kg and make coarse crushing sample;
4th step, within described coarse crushing sample is continued fine crushing to 3mm, by the slag Homogeneous phase mixing after fine crushing, grind after obtaining 0.98kg with inquartation division, the final abrasive grains degree of slag is less than 20 μm, after grinding, slag Homogeneous phase mixing is taken out the detection sample of 150g by inquartation and carries out chemical analysis experiment.
Arrange intersection by repeatedly four lines five to layout and sample quarterlies, successfully can take out representative slag and analyze sample from slag in enormous quantities, thus ensure that the authenticity of metallurgical cinder chemical analysis data in enormous quantities.
Claims (3)
1. the sampling method of metallurgical cinder chemical composition, is characterized in that, the method comprises the following steps:
(1) within slag being crushed to 600mm, be laid on level ground with rectangular shape, the tiling of slag is highly 400 ~ 600mm, and adopts transverse and longitudinal intersection cloth point mode decile in rectangle slag to get multiple point of crossing, carries out mark to each point of crossing;
(2) get 3 ~ 5t slag in the mark place sampling of described point of crossing successively, by within being crushed to 200mm at the beginning of slag particles degree after all samplings are merged into full-page proof, slag are mixed rear division method division to 35 ~ 45t and make just point sample;
(3) by within described just point sample coarse crushing to 70mm, slag after coarse crushing is laid on level ground with rectangular shape, tiling is highly 150 ~ 200mm, and adopt transverse and longitudinal intersection cloth point mode decile in rectangle slag to get multiple point of crossing, take out the slag of 80 ~ 120kg at each point of crossing place, slag is mixed rear division method division to 380 ~ 420kg and make coarse crushing sample;
(4) within described coarse crushing sample being continued fine crushing to 3mm, by the slag Homogeneous phase mixing after fine crushing, grind with after division method division to 0.9 ~ 1.1kg, the final abrasive grains degree of slag is less than 20 μm, after grinding, slag Homogeneous phase mixing is also carried out chemical analysis experiment with the detection sample that division method takes out 150g.
2. the sampling method of metallurgical cinder chemical composition according to claim 1, is characterized in that, the interleaved mode that the transverse and longitudinal intersection cloth point mode in described step (1), (3) adopts four lines five to arrange, and selects 20 point of crossing.
3. the sampling method of metallurgical cinder chemical composition according to claim 1, is characterized in that, the division method in described step (2), (3), (4) adopts inquartation division.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510122334.0A CN104677685A (en) | 2015-03-19 | 2015-03-19 | Method for sampling chemical components of metallurgical molten slag |
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| CN201510122334.0A CN104677685A (en) | 2015-03-19 | 2015-03-19 | Method for sampling chemical components of metallurgical molten slag |
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| CN104677685A true CN104677685A (en) | 2015-06-03 |
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| CN201510122334.0A Pending CN104677685A (en) | 2015-03-19 | 2015-03-19 | Method for sampling chemical components of metallurgical molten slag |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546443A (en) * | 2016-11-08 | 2017-03-29 | 攀钢集团攀枝花钢钒有限公司 | The assay method of calcium-magnesium content in Inactivate granular magnesium |
| CN111983174A (en) * | 2020-08-13 | 2020-11-24 | 楚雄滇中有色金属有限责任公司 | Scrap copper inspection method based on molten copper |
| CN114459809A (en) * | 2021-12-24 | 2022-05-10 | 湖南金鑫新材料股份有限公司 | Sampling method for testing raw and auxiliary materials |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008249437A (en) * | 2007-03-29 | 2008-10-16 | Nikko Kinzoku Kk | Sampling method and sampling facility |
| CN102359888A (en) * | 2011-09-15 | 2012-02-22 | 鲁中矿业有限公司 | Iron ore sampling and sample making method and system |
-
2015
- 2015-03-19 CN CN201510122334.0A patent/CN104677685A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008249437A (en) * | 2007-03-29 | 2008-10-16 | Nikko Kinzoku Kk | Sampling method and sampling facility |
| CN102359888A (en) * | 2011-09-15 | 2012-02-22 | 鲁中矿业有限公司 | Iron ore sampling and sample making method and system |
Non-Patent Citations (1)
| Title |
|---|
| 刘五知: ""矿石的取样与制样"", 《云南冶金》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546443A (en) * | 2016-11-08 | 2017-03-29 | 攀钢集团攀枝花钢钒有限公司 | The assay method of calcium-magnesium content in Inactivate granular magnesium |
| CN111983174A (en) * | 2020-08-13 | 2020-11-24 | 楚雄滇中有色金属有限责任公司 | Scrap copper inspection method based on molten copper |
| CN114459809A (en) * | 2021-12-24 | 2022-05-10 | 湖南金鑫新材料股份有限公司 | Sampling method for testing raw and auxiliary materials |
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Application publication date: 20150603 |
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