CN106645244A - Method for evaluating dispersion degree of Ti element in titanium-containing furnace charge - Google Patents
Method for evaluating dispersion degree of Ti element in titanium-containing furnace charge Download PDFInfo
- Publication number
- CN106645244A CN106645244A CN201611218702.2A CN201611218702A CN106645244A CN 106645244 A CN106645244 A CN 106645244A CN 201611218702 A CN201611218702 A CN 201611218702A CN 106645244 A CN106645244 A CN 106645244A
- Authority
- CN
- China
- Prior art keywords
- decentralization
- elements
- furnace charge
- titaniferous
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010936 titanium Substances 0.000 title claims abstract description 170
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 28
- 239000006185 dispersion Substances 0.000 title claims abstract 7
- 238000000034 method Methods 0.000 title claims description 17
- 238000011156 evaluation Methods 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract 3
- 230000008569 process Effects 0.000 claims description 9
- 239000004575 stone Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 15
- 229910052742 iron Inorganic materials 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 abstract description 3
- 235000019580 granularity Nutrition 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 238000010408 sweeping Methods 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 235000012149 noodles Nutrition 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910009973 Ti2O3 Inorganic materials 0.000 description 1
- 229910009815 Ti3O5 Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- GQUJEMVIKWQAEH-UHFFFAOYSA-N titanium(III) oxide Chemical compound O=[Ti]O[Ti]=O GQUJEMVIKWQAEH-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/225—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion
- G01N23/2251—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion using incident electron beams, e.g. scanning electron microscopy [SEM]
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention discloses an evaluation method for Ti element dispersion degree in a titanium-containing furnace charge, belonging to the technical field of iron making. The evaluation method comprises the following steps: selecting a titanium-containing ore sample to be evaluated, randomly dividing the titanium-containing ore sample into N equal parts, wherein N is more than or equal to 2, and randomly selecting one titanium-containing ore from each sample as a test sample; performing surface scanning on the test sample by using a scanning electron microscope to obtain a Ti element surface scanning image; gridding the surface scanning image to obtain a surface scanning gridding image; and obtaining the dispersion degree of the Ti elements in the furnace burden according to the proportion of the number of the grids occupied by the Ti elements in the surface scanning grid diagram to the total number of the grids. Therefore, the dispersion degree of the Ti element in the titaniferous furnace material is quantitatively evaluated, the larger the dispersion degree is, the higher the dispersion degree of the Ti element is, the furnace protection effect of the Ti element in the titaniferous furnace material is effectively evaluated from the aspect of dynamics, and a judgment basis is provided for the selection of Ti resources.
Description
Technical field
The present invention relates to ironmaking technology field, the evaluation method of Ti element decentralization in more particularly to a kind of titaniferous furnace charge.
Background technology
In recent years, as blast furnace maximization development trend, rate of driving are stepped up, blast furnace crucibe occurs to burn, side
The problems such as wall temperature is drastically raised showed increased.Intensity of cooling, control rate of driving etc. are for example improved in conventional furnace retaining measure to arrange
On the basis of applying, vast ironmaking worker increasingly approves that use plus the method for titanium furnace retaining safeguard that blast furnace crucibe is long-lived.
But in the face of miscellaneous titaniferous furnace retaining resource, the method for titanium resource is evaluated at present only from composition and price angle
Consider, such as its Iron grade, Ti content or " Fe+Ti " grade etc., this kind of evaluation method is more unilateral, it is impossible to effective expression titaniferous
Ti elements play the complexity of action of protecting furnace in stove in furnace charge, therefore have judging titaniferous furnace charge performance quality only by grade
Institute is biased.
Titaniferous furnace charge furnace retaining mechanism is as follows：
Into the titaniferous furnace charge of blast furnace, under reducing atmosphere, as temperature is raised, first letter is changed into by complex compound
Single TiO2Compound, finally forms in cohesive zone and contains TiO2First slag, and according to the rule from high price to low price step by step
Reduction, i.e.,：
TiO2→Ti3O5→Ti2O3→TiO→Ti→TiC(TiN)
According to thermodynamic condition, the TiC (or TiN) of the higher formation of temperature is more.Into after cupola well, titanium at a certain temperature
Solubility in molten iron is limited, and temperature more high-dissolvability is higher.When the titanium in molten iron is less than its saturation solubility,
Most of TiC (or TiN) will be dissolved in molten iron, and work as titaniferous molten iron in the low-temperature space of cupola well lower periphery (near furnace wall),
Titaniferous amount in molten iron will be above the saturation solubility of titanium, and TiC (or TiN) will be deposited on furnace wall so that solid state crystallization is separated out,
Furnace retaining effect can be just played after deposition reaches certain thickness, deposition is more, and furnace retaining effect is better.
However, consider from aerodynamic point, only extraneous reducing atmosphere is touched just titanium-containing oxide is as much as possible
Can more rapidly be reduced, and affect one of key factor of titanium-containing oxide reduction to be exactly Ti elements dividing in titaniferous furnace charge
Scattered degree, degree of scatter is higher more with extraneous reducing atmosphere contact surface.For this reason, it may be necessary to propose that one kind being capable of quantitative assessment Ti
The method of element decentralization in titaniferous furnace charge, to auxiliary evaluation titanium resource furnace retaining effect.
The content of the invention
It is an object of the invention to provide in a kind of titaniferous furnace charge Ti element decentralization evaluation method, being capable of quantitative assessment Ti
Decentralization of the element in titaniferous furnace charge, is the choosing of Ti resources so as to the furnace retaining effect of Ti elements in effective evaluation titaniferous furnace charge
Offer basis for estimation is provided.
For achieving the above object, the invention provides in a kind of titaniferous furnace charge Ti element decentralization evaluation method, including：
Choose titaniferous ore sample to be evaluated, and by the random N deciles of the titaniferous ore sample, N >=2, and from per part
A titaniferous ore is randomly selected in sample as test sample；
Surface scan is carried out to the test sample using SEM, Ti element Surface scan figures are obtained；
Gridding process is carried out to the Surface scan figure, Surface scan grid chart is obtained；
Meshes number according to shared by Ti elements in the Surface scan grid chart accounts for the ratio of total grid number, obtains Ti elements
Decentralization in furnace charge.
Further, the granularity of the titaniferous ore sample is 5～20mm.
Further, it is the grid that some homalographics are drawn in the Surface scan figure that the gridding is processed.
Further, total grid number >=64.
Further, the meshes number according to shared by Ti elements in the Surface scan grid chart accounts for the ratio of total grid number
Example, obtains decentralization of the Ti elements in furnace charge, specially：The grid containing Ti elements is marked in the Surface scan grid chart,
The ratio for accounting for total grid number according to the grid number containing Ti elements calculates respectively the Ti element decentralization of each test sample, and according to
Test sample number calculate test sample Ti element decentralization mean value, using the mean value as Ti elements in furnace charge
Decentralization.
Further, the Ti elements decentralization of the test sample is calculated with specific reference to following formula：
In formula (1)：DiFor the Ti element decentralization of test sample, %；ATiFor the Ti element grid numbers of test sample, individual net
Lattice；A0For total grid number of test sample, individual grid.
Further, decentralization of the Ti elements in furnace charge is calculated with specific reference to following formula：
In formula (2)：DTi in burdenFor decentralization of the Ti elements in furnace charge, %；DiTi elements for test sample disperse
Degree, %；N is test sample number, the i.e. isodisperse of titaniferous ore sample.
One or more technical schemes provided in the embodiment of the present invention, at least have the following technical effect that or advantage：
The evaluation method of Ti element decentralization, chooses first to be evaluated in the titaniferous furnace charge provided in the embodiment of the present invention
Titaniferous ore sample, and by the random N deciles of the titaniferous ore sample, N >=2, and one is randomly selected from every part of sample contain
Titanium ore is used as test sample；Then Surface scan is carried out to the test sample using SEM, obtains Ti elements
Surface scan figure；Carry out gridding process to the Surface scan figure again, obtain Surface scan grid chart；Finally according to the Surface scan net
Meshes number in trrellis diagram shared by Ti elements accounts for the ratio of total grid number, obtains decentralization of the Ti elements in furnace charge.Thus, right
Decentralization of the Ti elements in titaniferous furnace charge carries out quantitative assessment, and its decentralization is bigger, shows that the degree of scatter of Ti elements is higher,
And then realizing furnace retaining effect from Ti elements in aerodynamic point effective evaluation titaniferous furnace charge, the selection for Ti resources is provided and sentenced
Disconnected foundation.
Description of the drawings
Fig. 1 is the evaluation method flow chart of Ti element decentralization in titaniferous furnace charge provided in an embodiment of the present invention；
Fig. 2 is the Surface scan grid chart that the embodiment of the present invention 1 is obtained；
Fig. 3 is the Surface scan grid chart that the embodiment of the present invention 2 is obtained.
Specific embodiment
The embodiment of the present invention provides a kind of evaluation method of Ti element decentralization in titaniferous furnace charge, can quantitative assessment Ti it is first
Decentralization of the element in titaniferous furnace charge, is the selection of Ti resources so as to the furnace retaining effect of Ti elements in effective evaluation titaniferous furnace charge
Basis for estimation is provided.
For achieving the above object, embodiment of the present invention general thought is as follows：
The invention provides in a kind of titaniferous furnace charge Ti element decentralization evaluation method, including：
Choose titaniferous ore sample to be evaluated, and by the random N deciles of the titaniferous ore sample, N >=2, and from per part
A titaniferous ore is randomly selected in sample as test sample；
Surface scan is carried out to the test sample using SEM, Ti element Surface scan figures are obtained；
Gridding process is carried out to the Surface scan figure, Surface scan grid chart is obtained；
Meshes number according to shared by Ti elements in the Surface scan grid chart accounts for the ratio of total grid number, obtains Ti elements
Decentralization in furnace charge.
Can be seen that the present invention by above content carries out Surface scan acquisition by SEM to titaniferous ore
Ti units vegetarian noodles surface sweeping figure, according to the shared ratio in Surface scan figure of Ti elements, realizes the quantitative Ti elements that calculate in titaniferous furnace charge
In decentralization, its decentralization is bigger, shows that the degree of scatter of Ti elements is higher, and then realizes from aerodynamic point and effectively comment
The furnace retaining effect of Ti elements in valency titaniferous furnace charge, the selection for Ti resources provides basis for estimation.
In order to be better understood from above-mentioned technical proposal, technical solution of the present invention is done below by the drawings and specific embodiments
Detailed description, it should be understood that the specific features in the embodiment of the present invention and embodiment are to the detailed of technical solution of the present invention
Explanation, rather than to the restriction of technical solution of the present invention, in the case where not conflicting, in the embodiment of the present invention and embodiment
Technical characteristic can be combined with each other.
A kind of evaluation method of Ti element decentralization in titaniferous furnace charge is embodiments provided, Fig. 1 is referred to, is wrapped
Include：
Step S110：Choose titaniferous ore sample to be evaluated, and by the random N deciles of the titaniferous ore sample, N >=2,
And a titaniferous ore is randomly selected from every part of sample as test sample；
It is representative in order to ensure test sample in step s 110, so carrying out sample to the titaniferous ore of required evaluation
This sampling, and by the random N deciles of sample, a titaniferous ore is taken at random from every part of sample as test sample.Specifically,
The number of decile is more, i.e. N values are bigger, and decentralization of the Ti elements for obtaining in furnace charge more levels off to actual value, the knot of evaluation
Fruit is more accurate.
In the present embodiment, the granularity of the titaniferous ore sample of selection be 5～20mm, sample size >=1kg.
Titaniferous ore sample granularity selects the titaniferous furnace charge that 5～20mm is because in the particle size range to have preferable furnace retaining
Effect, in order that test result is representative, the titaniferous ore sample for selecting the particle size range is tested.Sample size is too small
Point quantity such as can affect, make the representative variation of test result.
Step S120：Surface scan is carried out to the test sample using SEM (SEM), Ti units vegetarian noodles is obtained
Scanning figure；
In the step s 120, to carrying out Surface scan after test sample sample preparation determining Ti elements in the range of whole visual field
Dispersity, it is to avoid drain sweep causes error to result, makes evaluation result more accurate, and intercepts Ti element Surface scan figures.Wherein,
Method for making sample is specially：Test sample is cut open by centre, subsequently inlayed, roughly ground, fine grinding, polishing, the operation such as drying,
Obtain observation sample.
Step S130：Gridding process is carried out to the Surface scan figure, Surface scan grid chart is obtained；
Specifically, it is the grid that some homalographics are drawn in the Surface scan figure that the gridding is processed.Triangle, four
The polygonal mesh such as side shape, pentagon, but for the ease of drawing and calculating meshes number, grid is preferably quadrangle, more
Plus be preferably square.
In the present embodiment, total grid number >=64 of drafting.Grid number very little, can make the grid shared by the Ti elements that obtain
Number error increases, so that decentralization error of the Ti elements in furnace charge increases, causes evaluation result inaccurate.Therefore, limit
Fixed total grid number >=64, grid number is more, and decentralization error of the Ti elements for obtaining in furnace charge is less, and the result of evaluation is more accurate
Really.
Step S140：Meshes number according to shared by Ti elements in the Surface scan grid chart accounts for the ratio of total grid number,
Obtain decentralization of the Ti elements in furnace charge.
Specifically, the grid containing Ti elements is marked in the Surface scan grid chart, is accounted for according to the grid number containing Ti elements
The ratio of total grid number calculates respectively the Ti element decentralization of each test sample, and calculates test examination according to test sample number
The mean value of the Ti element decentralization of sample, using decentralization of the mean value as Ti elements in furnace charge.
Wherein, the Ti elements decentralization of the test sample is calculated with specific reference to following formula：
In formula (1)：DiFor the Ti element decentralization of test sample, %；ATiFor the Ti element grid numbers of test sample, individual net
Lattice；A0For total grid number of test sample, individual grid.
Specifically, Ti elements are presented under Scanning Electron microscope in bright spot form, therefore only will need to contain in total grid
The grid for having Ti element bright spots is marked record, so that it may draw the Ti element grid number A of test sampleTi。
Wherein, decentralization of the Ti elements in furnace charge is the mean value of the Ti element decentralization of each test sample, tool
Body is calculated according to following formula：
In formula (2)：DTi in burdenFor decentralization of the Ti elements in furnace charge, %；DiTi elements for test sample disperse
Degree, %；N is test sample number, the i.e. isodisperse of titaniferous ore sample.
In the present embodiment, decentralization D of the Ti elements in furnace charge is obtainedTi in burden, its value is bigger, shows Ti elements point
Scattered degree is higher, considers that the reduction of titanium-containing oxide is easier from aerodynamic point, and such titanium ore furnace retaining effect is more obvious.
By the above as can be seen that the present embodiment carries out Surface scan by SEM to titaniferous ore obtains
Ti units vegetarian noodles surface sweeping figure is obtained, according to the shared ratio in Surface scan figure of Ti elements, the quantitative Ti elements that calculate are in titaniferous furnace charge
Decentralization, its decentralization is bigger, shows that the degree of scatter of Ti elements is higher, and then realizes from aerodynamic point effective evaluation
Titaniferous furnace charge is used for Ti elements application efficiency height during furnace retaining, so as to for the different types of titanium resource of evaluation provide except composition,
The evaluation method of the more closing to reality application outside price.
It is for a more detailed description to the present invention by the following examples.These embodiments are only to optimal embodiment party of the invention
The description of formula, does not there is any restriction to the scope of the present invention.
Embodiment 1
Randomly select >=3kg granularities in the titanium resource A of 5～20mm, it is carried out after trisection random choosing from per part
One titanium ore is designated as A as test sample1、A2、A3；
First to A1Scanning electron microscope analysis are carried out after sample sample preparation, the Surface scan figure containing Ti elements is obtained；
To A1The face surface sweeping figure of sample carries out gridding process, as shown in Fig. 2 remembering that total grid number is A0=96；To first containing Ti
The grid of plain bright spot is recorded, and grid number is ATi=96；
A is calculated according to formula (1)1The Ti element decentralization D of sampleA1=100%.
According still further to the A of same procedure two decile other to titanium resource A2、A3The calculating of Ti elements decentralization is carried out, D is obtainedA2=
97.92%th, DA3=93.75%.Then decentralization D of the Ti elements of titanium resource A in furnace chargeA Ti in burden=(DA1+DA2+
DA3)/3=97.22%.
Embodiment 2
Randomly select >=2kg granularities in the titanium resource B of 5～20mm, it is carried out after trisection random choosing from per part
One titanium ore is designated as B as test sample1、B2、B3。
To B1Scanning electron microscope analysis are carried out after sample sample preparation, the Surface scan figure containing Ti elements is obtained；
To B1The face surface sweeping figure of sample carries out gridding process, as shown in figure 3, remembering that total grid number is A0=96；To first containing Ti
The grid of plain bright spot is recorded, and grid number is ATi=34；
B is calculated according to formula (1)1The Ti element decentralization D of sampleB1=35.42%.
According still further to the B of same procedure two decile other to titanium resource B2、B3The calculating of Ti elements decentralization is carried out, D is obtainedB2=
31.25%th, DB3=37.50%.Then decentralization D of the Ti elements of titanium resource B in furnace chargeB Ti in burden=(DB1+DB2+
DB3)/3=34.72%.
According to the furnace retaining effect of decentralization and the titanium resource of the Ti elements of present invention method calculating in furnace charge
With uniformity, show that the evaluation method of Ti element decentralization in titaniferous furnace charge provided in an embodiment of the present invention being capable of accurate quantitative analysis
Decentralization of the Ti elements in furnace charge is evaluated, can be used to evaluate the furnace retaining effect of Ti elements in titaniferous furnace charge, be the choosing of Ti resources
Offer basis for estimation is provided.
One or more technical schemes provided in the embodiment of the present invention, at least have the following technical effect that or advantage：
The evaluation method of Ti element decentralization, chooses first to be evaluated in the titaniferous furnace charge provided in the embodiment of the present invention
Titaniferous ore sample, and by the random N deciles of the titaniferous ore sample, N >=2, and one is randomly selected from every part of sample contain
Titanium ore is used as test sample；Then Surface scan is carried out to the test sample using SEM, obtains Ti elements
Surface scan figure；Carry out gridding process to the Surface scan figure again, obtain Surface scan grid chart；Finally according to the Surface scan net
Meshes number in trrellis diagram shared by Ti elements accounts for the ratio of total grid number, obtains decentralization of the Ti elements in furnace charge.Thus, right
Decentralization of the Ti elements in titaniferous furnace charge carries out quantitative assessment, and its decentralization is bigger, shows that the degree of scatter of Ti elements is higher,
And then realizing furnace retaining effect from Ti elements in aerodynamic point effective evaluation titaniferous furnace charge, the selection for Ti resources is provided and sentenced
Disconnected foundation.
It should be noted last that, above specific embodiment only to illustrate technical scheme and unrestricted,
Although being described in detail to the present invention with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of technical solution of the present invention, it all should cover
In the middle of scope of the presently claimed invention.
Claims (7)
1. in a kind of titaniferous furnace charge Ti element decentralization evaluation method, it is characterised in that include：
Choose titaniferous ore sample to be evaluated, and by the random N deciles of the titaniferous ore sample, N >=2, and from every part of sample
In randomly select a titaniferous ore as test sample；
Surface scan is carried out to the test sample using SEM, Ti element Surface scan figures are obtained；
Gridding process is carried out to the Surface scan figure, Surface scan grid chart is obtained；
Meshes number according to shared by Ti elements in the Surface scan grid chart accounts for the ratio of total grid number, obtains Ti elements in stove
Decentralization in material.
2. in titaniferous furnace charge as claimed in claim 1 Ti element decentralization evaluation method, it is characterised in that it is described containing titanium ore
The granularity of stone sample is 5～20mm.
3. in titaniferous furnace charge as claimed in claim 1 Ti element decentralization evaluation method, it is characterised in that the gridding
Process is the grid that some homalographics are drawn in the Surface scan figure.
4. in titaniferous furnace charge as claimed in claim 1 Ti element decentralization evaluation method, it is characterised in that total grid
Number >=64.
5. in titaniferous furnace charge as claimed in claim 1 Ti element decentralization evaluation method, it is characterised in that it is described according to institute
The ratio that the meshes number in Surface scan grid chart shared by Ti elements accounts for total grid number is stated, dispersion of the Ti elements in furnace charge is obtained
Degree, specially：
The grid containing Ti elements is marked in the Surface scan grid chart, the ratio of total grid number is accounted for according to the grid number containing Ti elements
Example calculates respectively the Ti element decentralization of each test sample, and calculates the Ti elements point of test sample according to test sample number
The mean value of divergence, using decentralization of the mean value as Ti elements in furnace charge.
6. in titaniferous furnace charge as claimed in claim 5 Ti element decentralization evaluation method, it is characterised in that test examination
The Ti elements decentralization of sample is calculated with specific reference to following formula：
In formula (1)：DiFor the Ti element decentralization of test sample, %；ATiFor the Ti element grid numbers of test sample, individual grid；A0
For total grid number of test sample, individual grid.
7. in the titaniferous furnace charge as described in claim 5 or 6 Ti element decentralization evaluation method, it is characterised in that the Ti
Decentralization of the element in furnace charge is calculated with specific reference to following formula：
In formula (2)：DTiinburdenFor decentralization of the Ti elements in furnace charge, %；DiFor the Ti element decentralization of test sample, %；
N is test sample number, the i.e. isodisperse of titaniferous ore sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611218702.2A CN106645244B (en) | 2016-12-26 | 2016-12-26 | Method for evaluating dispersion degree of Ti element in titanium-containing furnace charge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611218702.2A CN106645244B (en) | 2016-12-26 | 2016-12-26 | Method for evaluating dispersion degree of Ti element in titanium-containing furnace charge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106645244A true CN106645244A (en) | 2017-05-10 |
| CN106645244B CN106645244B (en) | 2019-10-08 |
Family
ID=58826753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611218702.2A Active CN106645244B (en) | 2016-12-26 | 2016-12-26 | Method for evaluating dispersion degree of Ti element in titanium-containing furnace charge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106645244B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112410486A (en) * | 2020-11-20 | 2021-02-26 | 江苏沙钢集团有限公司 | Method for judging furnace protection effect of blast furnace hearth |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040011958A1 (en) * | 2002-05-15 | 2004-01-22 | Wright Stuart Ian | Chemical prefiltering for phase differentiation via simultaneous energy dispersive spectrometry and electron backscatter diffraction |
| CN105372274A (en) * | 2015-10-30 | 2016-03-02 | 长安大学 | Method for evaluating dispersed state of nano ZnO in pitch |
| CN105424574A (en) * | 2015-11-10 | 2016-03-23 | 国网吉林省电力有限公司电力科学研究院 | Quantitative characterization method for foam aluminum alloy porosity and dispersity |
| CN106053316A (en) * | 2016-06-08 | 2016-10-26 | 燕山大学 | Program and calculation method for pore distribution and fractal of microstructure of soil mass |
-
2016
- 2016-12-26 CN CN201611218702.2A patent/CN106645244B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040011958A1 (en) * | 2002-05-15 | 2004-01-22 | Wright Stuart Ian | Chemical prefiltering for phase differentiation via simultaneous energy dispersive spectrometry and electron backscatter diffraction |
| CN105372274A (en) * | 2015-10-30 | 2016-03-02 | 长安大学 | Method for evaluating dispersed state of nano ZnO in pitch |
| CN105424574A (en) * | 2015-11-10 | 2016-03-23 | 国网吉林省电力有限公司电力科学研究院 | Quantitative characterization method for foam aluminum alloy porosity and dispersity |
| CN106053316A (en) * | 2016-06-08 | 2016-10-26 | 燕山大学 | Program and calculation method for pore distribution and fractal of microstructure of soil mass |
Non-Patent Citations (2)
| Title |
|---|
| 任英忱 等: "用扫描电镜-图像分析方法研究某区稀土、铌矿石的元素赋存状态", 《岩石矿物及测试》 * |
| 焦克新 等: "含钛物料中护炉有效钛含量的控制模型", 《东北大学学报（自然科学版）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112410486A (en) * | 2020-11-20 | 2021-02-26 | 江苏沙钢集团有限公司 | Method for judging furnace protection effect of blast furnace hearth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106645244B (en) | 2019-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kennedy et al. | Grenville skarn titanite: potential reference material for SIMS U–Th–Pb analysis | |
| CN110600086B (en) | Ore blending method based on high-temperature metallurgical performance of iron ore | |
| CN105067649A (en) | Method for quantitative analysis on material organization through scanning electron microscope and energy disperse spectrometer | |
| CN107202790A (en) | A kind of high-carbon steel wire rod tissue grain size ranking method | |
| CN106353173B (en) | The quick timeliness detection method of high-carbon steel wire rod | |
| CN106645244A (en) | Method for evaluating dispersion degree of Ti element in titanium-containing furnace charge | |
| Otsuka et al. | Tritium retention characteristics in dust particles in JET with ITER-like wall | |
| Zhou et al. | Evaluation of granule structure and strength properties of green packed beds in iron ore sintering using high-resolution X-ray tomography and uniaxial compression testing | |
| CN104794711B (en) | A kind of image processing method and device | |
| Truyens et al. | NUSIMEP-7: uranium isotope amount ratios in uranium particles | |
| CN106702147A (en) | Method and system for reducing reduction degradation of vanadium-titanium magnet pellets | |
| CN109634831A (en) | A kind of Android application program GUI traverses test method and system automatically | |
| Veldhuijzen | ‘Slag_Fun’–a new tool for archaeometallurgy: development of an analytical (P) ED-XRF method for iron-rich materials | |
| CN206256124U (en) | A kind of system for reducing v-ti magnetite pellet ore reduction efflorescence | |
| CN110095464B (en) | Fine quantitative analysis method for complex-composition sinter ore phases | |
| Birch et al. | The iron bars from the ‘Gresham Ship’: employing multivariate statistics to further slag inclusion analysis of ferrous objects | |
| CN110361385A (en) | A kind of method and system of crystal grain data acquisition | |
| CN106018073A (en) | Dropping strength detection device and method of metallurgical green pellets | |
| JP2004020519A (en) | Method of evaluating internal oxide layer of metallic material surface layer | |
| Maia et al. | Archaeometry of ferrous artefacts from Luso-Brazilian archaeological sites near Ipanema River, Brazil | |
| CN107179313A (en) | Electrician is with the appraisal procedure of reclaimed copper bar performance | |
| CN118549246A (en) | Arrangement type detection method for analyzing factors affecting compressive strength of pellets | |
| CN103103341A (en) | Control method of iron particle granularity in deep reduction material | |
| JP2023035426A (en) | Method and device for measuring porosity of sintered ore and method of estimating reducibility of sintered ore | |
| Natasya et al. | Malaysia’s Rare Earth Element Story: Characterizing the" Amang" |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Applicant after: SHOUGANG GROUP Co.,Ltd. Applicant after: Shougang Jingtang United Iron & Steel Co., Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Applicant before: SHOUGANG Corp. Applicant before: Shougang Jingtang United Iron & Steel Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |