CN106546591A - A kind of detection method of sintering deposit uniformity - Google Patents

A kind of detection method of sintering deposit uniformity Download PDF

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Publication number
CN106546591A
CN106546591A CN201610978739.9A CN201610978739A CN106546591A CN 106546591 A CN106546591 A CN 106546591A CN 201610978739 A CN201610978739 A CN 201610978739A CN 106546591 A CN106546591 A CN 106546591A
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sintering deposit
uniformity
rsd
sfca
mineral
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CN106546591B (en
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潘文
赵霞
赵勇
张晓臣
马怀营
赵志星
马泽军
张志东
裴元东
陈绍国
梁杰
徐萌
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Shougang Corp
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Shougang Corp
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications

Abstract

The invention discloses a kind of detection method of sintering deposit uniformity, the position of different minerals in sintering deposit is recorded first with observation by light microscope, and then draw out the mineral scattergram in sintering deposit, secondly the uniformity that each essential mineral is distributed in sintering deposit is calculated according to the distribution situation of each essential mineral in zones of different in scattergram, the uniformity being distributed in sintering deposit further according to essential mineral calculates that sintering deposit uniformity is quantitative, then using the sintering deposit uniformity quantitative assessment sintering deposit uniformity.The present invention is quantitative by drawing the mineral scattergram in sintering deposit, the uniformity that step by step calculation goes out sintering deposit, accurately by the uniformity index of sintering deposit using sintering deposit uniformity quantification, can visual representation go out the uniformity of sintering deposit.

Description

A kind of detection method of sintering deposit uniformity
Technical field
The application is related to mineral prospecting technical field, more particularly to a kind of detection method of sintering deposit uniformity.
Background technology
As a kind of artificial iron ore of heterogeneous body iron content, the advance mixing in sintering deposit raw material stock ground in its production process, Batch mixing, a rerolling of sintered material, and the employing of various segregation distribution technologies is provided to improve sintering deposit as far as possible Stability and uniformity.
Uniform and stable sintering deposit can improve the intensity of sintering deposit, improve the metallurgical performance of sintering deposit, to ensureing blast furnace Stability is most important.
But at present for the uniformity of sintering deposit does not have specific evaluation index, let alone detection method, therefore have It is necessary to find a kind of detection method of sintering deposit uniformity, objective, the quantitative uniformity index for providing sintering deposit.
The content of the invention
Invention provides a kind of detection method of sintering deposit uniformity, to solve to detect the uniformity of sintering deposit at present The technical problem that cannot be evaluated.
To solve above-mentioned technical problem, the invention provides a kind of detection method of sintering deposit uniformity, methods described bag Include：
Using the position of different minerals in sintering deposit described in Optical microscopy, the mineral point in the sintering deposit are obtained Butut；
According to the distribution situation of each essential mineral in zones of different in the mineral scattergram, each essential mineral is calculated The uniformity being distributed in the sintering deposit；
According to the uniformity that each essential mineral is distributed in the sintering deposit, the uniform of the sintering deposit is calculated Property is quantitative；
The uniformity of the sintering deposit is quantitatively determined based on the uniformity of the sintering deposit.
Preferably, in sintering deposit described in the utilization Optical microscopy different minerals position, obtain the sintering Mineral scattergram in ore deposit, including：
Sintering deposit sample is made the crystalline phase sample for meeting the observation by light microscope；
The crystalline phase sample is placed under the optical microscope, all equal common L* of length and width points is obtained using several methods The mineral composition in L point region；Wherein, L is the long points or wide points of the mineral scattergram in the sintering deposit；L is just whole Number and L >=10；
By each mineral for putting region with different color marks after the completion of the correspondence position of the matrix of L*L, labelling it is Obtain the mineral scattergram in the sintering deposit.
Preferably, the distribution situation according to each essential mineral in zones of different in the mineral scattergram, calculates institute The uniformity that each essential mineral is distributed in the sintering deposit is stated, including：
N block region is chosen in the mineral scattergram alternately, N is positive integer and L >=9；
The content of the described each essential mineral in the N blocks region is counted respectively, and each essential mineral includes compound iron Sour calcium SFCA, magnetic iron ore M and bloodstone H, the content of each essential mineral are designated as x_SFCA respectivelyi, x_Mi, x_Hi, i= 1 ... N；
Uniformity RSD of SFCA, M and H in sintering deposit is calculated respectivelySFCA、RSDMAnd RSDH。
Preferably, it is described to calculate uniformity RSD of SFCA, M and H in sintering deposit respectivelySFCA、RSDMAnd RSDH, including： RSD is calculated using equation belowSFCA：
RSDSFCA：The uniformity that SFCA is distributed in the sintering deposit；
N：The number in the region chosen in the sintering deposit；
x_SFCAi：The content of SFCA, i=1 ... N in N blocks region.
Preferably, it is described to calculate uniformity RSD of SFCA, M and H in sintering deposit respectivelySFCA、RSDMAnd RSDH, including：
RSD is obtained using equation belowM：
RSDM：The uniformity that M is distributed in the sintering deposit；
N：The number in the region chosen in the sintering deposit；
x_Mi：The content of M, i=1 ... N in N blocks region.
Preferably, it is described to calculate uniformity RSD of SFCA, M and H in sintering deposit respectivelySFCA、RSDMAnd RSDH, including：
RSD is obtained using equation belowH：
RSDH：The uniformity that H is distributed in the sintering deposit；
N：The number in the region chosen in the sintering deposit；
x_Hi：The content of H, i=1 ... N in N blocks region.
Preferably, the uniformity being distributed in the sintering deposit according to each essential mineral calculates sintering deposit Uniformity is quantitative, including：
The quantitative UC of sintering deposit uniformity is calculated using equation belowsinter：
UCsinter：Sintering deposit uniformity；
XSFCA：Whole contents of the SFCA in the sintering deposit；
XM：Whole contents of the M in the sintering deposit；
XH：Whole contents of the H in the sintering deposit.
By one or more technical scheme of the present invention, the invention has the advantages that or advantage：
Description of the drawings
Fig. 1 is a kind of schematic diagram of the detection method of sintering deposit uniformity in the embodiment of the present invention；
Fig. 2 is the mineral scattergram of sintering deposit in the embodiment of the present invention.
Specific embodiment
In order that the application the technical staff in the technical field is more clearly understood that the application, below in conjunction with the accompanying drawings, Technical scheme is described in detail by specific embodiment.
The implementation principle of the present invention is the distribution by determining different minerals in sintering deposit, and each essential mineral component is in sintering Uniformity in ore deposit, detects that the sintering deposit uniformity for drawing carrys out the uniformity index of overall merit sintering deposit.
The method records the position of different minerals in sintering deposit first with observation by light microscope, and then draws out sintering Mineral scattergram in ore deposit, secondly calculates each essential mineral according to the distribution situation of each essential mineral in zones of different in scattergram The uniformity being distributed in sintering deposit, it is uniform that the uniformity being distributed in sintering deposit further according to essential mineral calculates sintering deposit Property it is quantitative, then using the sintering deposit uniformity quantitative assessment sintering deposit uniformity.The present invention is by drawing in sintering deposit Mineral scattergram, step by step calculation goes out uniformity UC of sintering depositsinter, accurately by the uniformity index of sintering deposit using burning Uniformity UC of knot ore depositsinterQuantification, can visual representation go out the uniformity of sintering deposit.
The Major Difficulties of the present invention are the method for drafting of the mineral scattergram in sintering deposit, and each essential mineral is in sintering deposit The computational methods of the uniformity of interior distribution, and the computational methods of sintering deposit uniformity.
In the following embodiments, referring to Fig. 1, disclose a kind of detection method of sintering deposit uniformity.
S11, using the position of different minerals in sintering deposit described in Optical microscopy, obtains the ore deposit in the sintering deposit Thing scattergram.
In specific implementation process, the implementation process of the mineral scattergram in drafting sintering deposit is as follows：
First, sintering deposit sample is made the crystalline phase sample for meeting the observation by light microscope；Then by the crystalline phase Sample is placed under the optical microscope, obtains the mineral group in all equal common L*L point region of length and width points using several methods Into；Wherein, L is the long points or wide points of the mineral scattergram in the sintering deposit；L is positive integer and L >=10；Secondly will be every The mineral in individual point region obtain the sintering with different color marks in the correspondence position of the matrix of L*L after the completion of labelling Mineral scattergram in ore deposit.
For example, sintering deposit sample is made the crystalline phase sample of suitable observation by light microscope, the sample is placed in into 500 Optical microphotograph Microscopic observation again, is observed using several methods and grows 30 points, wide 30 points, the mineral composition in totally 900 point regions, As shown in Fig. 2 there is mineral in each point region, the uniformity of sintering deposit can intuitively be observed by the mineral scattergram.
Certainly, the mineral in each point region can be also combined in the correspondence position of Fig. 2, such as ferrous acid with different color marks Calcium (SFCA) is cyan, magnetic iron ore (M) yellow, bloodstone (H) white, glass phase (G) Dark grey, and other (O) use black Represent etc., the mineral scattergram in sintering deposit is obtained after the completion of labelling, so as to more intuitively observe sintering deposit Uniformity.
S12, according to the distribution situation of each essential mineral in zones of different in the mineral scattergram, calculates described each main The uniformity that mineral are distributed in the sintering deposit.
In specific implementation process, can alternately choose N blocks region in the mineral scattergram, N be positive integer and N >= 9；One region can be that several set of regions are collectively formed, or (such as Fig. 1 is exactly 18 pieces in a single point region In region, every piece of region is all that 20 point regional ensembles get up).Then the described each master in the N blocks region is counted respectively The content of mineral, each essential mineral is wanted to include compound calcium ferrite SFCA, magnetic iron ore M and bloodstone H, each essential mineral Content be designated as x_SFCA respectivelyi, x_Mi, x_Hi, i=1 ... N；Then SFCA, M and H are calculated respectively in sintering deposit using formula Interior uniformity RSDSFCA、RSDMAnd RSDH。
Acquisition RSD is described belowSFCA、RSDMAnd RSDHSpecific implementation process.
RSD is calculated using formula 1SFCA：
RSDSFCA：The uniformity that SFCA is distributed in the sintering deposit；
N：The number in the region chosen in the sintering deposit；
x_SFCAi：The content of SFCA, i=1 ... N in N blocks region.
RSD is obtained using formula 2M：
RSDM：The uniformity that M is distributed in the sintering deposit；
N：The number in the region chosen in the sintering deposit；
x_Mi：The content of M, i=1 ... N in N blocks region.
RSD is obtained using formula 3H：
RSDH：The uniformity that H is distributed in the sintering deposit；
N：The number in the region chosen in the sintering deposit；
x_Hi：The content of H, i=1 ... N in N blocks region.
For example, 18 pieces of regions (in Fig. 2 grey parts, and N=18) are alternately chosen in mineral scattergram, is united respectively The content of essential mineral in this 18 pieces of regions, including SFCA, M and H are counted, x_SFCA is designated as respectivelyi, x_Mi, x_Hi(i=1,2 ... 18), uniformity RSD of SFCA, M and H in sintering deposit is calculated using formula 1- formula 3SFCA、RSDMAnd RSDH, finally using public affairs Formula 4 calculates the quantitative UC of uniformity of sintering depositsinter。
S13, according to the uniformity that each essential mineral is distributed in the sintering deposit, calculates the sintering deposit Uniformity is quantitative.
The quantitative UC of sintering deposit uniformity is calculated using equation below 4sinter：
UCsinter：Sintering deposit uniformity is quantitative；
XSFCA：Whole contents of the SFCA in the sintering deposit；
XM：Whole contents of the M in the sintering deposit；
XH：Whole contents of the H in the sintering deposit.
S14, quantitatively determines the uniformity of the sintering deposit based on the uniformity of the sintering deposit.
The uniformity of sintering deposit is exactly the uniformity quantificational expression with the sintering deposit, and then determines the sintering deposit Uniformity can quantitatively obtain the uniformity of sintering deposit.
By one or more embodiment of the present invention, the invention has the advantages that or advantage：
The invention discloses a kind of detection method of sintering deposit uniformity, sinters first with observation by light microscope record The position of different minerals in ore deposit, and then the mineral scattergram in sintering deposit is drawn out, secondly according in zones of different in scattergram The distribution situation of each essential mineral calculates the uniformity that each essential mineral is distributed in sintering deposit, further according to essential mineral in sintering In ore deposit, the uniformity of distribution calculates sintering deposit uniformity quantitatively, is then sintered using the uniformity quantitative assessment of the sintering deposit The uniformity of ore deposit.The present invention is quantitative by drawing the mineral scattergram in sintering deposit, the uniformity that step by step calculation goes out sintering deposit, accurate Uniformity quantification of the true uniformity index by sintering deposit using sintering deposit, can visual representation go out the uniform of sintering deposit Property.
Although having been described for the preferred embodiment of the application, one of ordinary skilled in the art once knows substantially Creative concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to bag Include preferred embodiment and fall into the had altered of the application scope and change.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the application to the application God and scope.So, if these modifications of the application and modification belong to the scope of the application claim and its equivalent technologies Within, then the application is also intended to comprising these changes and modification.

Claims (7)

1. a kind of detection method of sintering deposit uniformity, it is characterised in that methods described includes：
Using the position of different minerals in sintering deposit described in Optical microscopy, the mineral distribution in the sintering deposit is obtained Figure；
According to the distribution situation of each essential mineral in zones of different in the mineral scattergram, each essential mineral is calculated in institute State the uniformity of distribution in sintering deposit；
According to the uniformity that each essential mineral is distributed in the sintering deposit, the uniformity for calculating the sintering deposit is fixed Amount；
The uniformity of the sintering deposit is quantitatively determined based on the uniformity of the sintering deposit.
2. the method for claim 1, it is characterised in that different in sintering deposit described in the utilization Optical microscopy The position of mineral, obtains the mineral scattergram in the sintering deposit, including：
Sintering deposit sample is made the crystalline phase sample for meeting the observation by light microscope；
The crystalline phase sample is placed under the optical microscope, length and width is obtained using several methods and is counted all equal common L*L The mineral composition in point region；Wherein, L is the long points or wide points of the mineral scattergram in the sintering deposit；L be positive integer and L≥10；
The mineral in each point region are obtained after the completion of the correspondence position of the matrix of L*L, labelling with different color marks Mineral scattergram in the sintering deposit.
3. method as claimed in claim 2, it is characterised in that described according to each master in zones of different in the mineral scattergram The distribution situation of mineral is wanted, the uniformity that each essential mineral is distributed in the sintering deposit is calculated, including：
N block region is chosen in the mineral scattergram alternately, N is positive integer and L >=9；
The content of the described each essential mineral in the N blocks region is counted respectively, and each essential mineral includes compound calcium ferrite SFCA, magnetic iron ore M and bloodstone H, the content of each essential mineral are designated as x_SFCA respectivelyi, x_Mi, x_Hi, i=1 ... N；
Uniformity RSD of SFCA, M and H in sintering deposit is calculated respectivelySFCA、RSDMAnd RSDH。
4. method as claimed in claim 3, it is characterised in that described to calculate SFCA, M and H respectively uniform in sintering deposit Property RSDSFCA、RSDMAnd RSDH, including：
RSD is calculated using equation belowSFCA：
RSD S F C A = Σ i = 1 N ( x _ SFCA i - Σ i = 1 N x _ SFCA i N ) N - 1 Σ i = 1 N x _ SFCA i N × 100 % ,
RSDSFCA：The uniformity that SFCA is distributed in the sintering deposit；
N：The number in the region chosen in the sintering deposit；
x_SFCAi：The content of SFCA, i=1 ... N in N blocks region.
5. method as claimed in claim 4, it is characterised in that described to calculate SFCA, M and H respectively uniform in sintering deposit Property RSDSFCA、RSDMAnd RSDH, including：
RSD is obtained using equation belowM：
RSD M = Σ i = 1 N ( x _ M i - Σ i = 1 N x _ M i N ) N - 1 Σ i = 1 N x _ M i N × 100 % ,
RSDM：The uniformity that M is distributed in the sintering deposit；
N：The number in the region chosen in the sintering deposit；
x_Mi：The content of M, i=1 ... N in N blocks region.
6. method as claimed in claim 5, it is characterised in that described to calculate SFCA, M and H respectively uniform in sintering deposit Property RSDSFCA、RSDMAnd RSDH, including：
RSD is obtained using equation belowH：
RSD H = Σ i = 1 N ( x _ H i - Σ i = 1 N x _ H i N ) N - 1 Σ i = 1 N x _ H i N × 100 % ,
RSDH：The uniformity that H is distributed in the sintering deposit；
N：The number in the region chosen in the sintering deposit；
x_Hi：The content of H, i=1 ... N in N blocks region.
7. method as claimed in claim 6, it is characterised in that it is described according to each essential mineral in the sintering deposit point The uniformity of cloth calculates sintering deposit uniformity quantitatively, including：
The quantitative UC of sintering deposit uniformity is calculated using equation belowsinter：
UC sin t e r = RSD S F C A × X S F C A + RSD M × X M + RSD H × X H X S F C A + X M + X H ,
UCsinter：Sintering deposit uniformity；
XSFCA：Whole contents of the SFCA in the sintering deposit；
XM：Whole contents of the M in the sintering deposit；
XH：Whole contents of the H in the sintering deposit.
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