CN104990841A - Blast furnace gas ash phase classification method and device - Google Patents
Blast furnace gas ash phase classification method and device Download PDFInfo
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- CN104990841A CN104990841A CN201510408989.4A CN201510408989A CN104990841A CN 104990841 A CN104990841 A CN 104990841A CN 201510408989 A CN201510408989 A CN 201510408989A CN 104990841 A CN104990841 A CN 104990841A
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Abstract
The invention discloses a blast furnace gas ash phase classification method and device. The method comprises the steps of collecting image data of blast furnace gas ash, extracting characteristic parameters of the blast furnace gas ash in the image data, classifying the blast furnace gas ash into first coke particles, pulverized coal particles and iron-bearing mineral particles according to the characteristic parameters; classifying the first coke particles into second coke particles and coke-changed char particles according to a first parameter range; classifying the pulverized coal particles into raw coal particles, heat-changed raw coal particles, coal-changed residues and ash residues according to a second parameter range; classifying the iron-bearing mineral particles into pelletizing mineral particles, sintered ore particles, lump ore particles and metallic particles according to a third parameter range; in such a way, the blast furnace gas ash can be classified according to the utilization conditions of fuel, iron-bearing materials in the blast furnace gas ash also can be specifically distinguished, and a reference base is provided for further analyzing blast furnace production conditions.
Description
Technical field
The invention belongs to technical field of blast furnace ironmaking, particularly relate to a kind of blast furnace dust thing phase sorting technique and device.
Background technology
At present, in ironmaking technology field, the microscopic observation analysis to blast furnace dust is mainly concentrated on to the microscopic observation of blast furnace production process, by the microscopic observation analysis to gas ash, pulverized coal particle and coke granule in gas ash can be distinguished, to carry out fuel utilization situation analysis.
In the process analyzing blast furnace dust microcosmic composition, currently used sorting technique analyzes the petrographic analysis method of coal Coking Process, the sorting technique of the sorting technique of microcosmic composition mainly a kind of coal Coking Process in described petrographic analysis method.And blast furnace process and coking are essentially different, although petrographic analysis method can distinguish coal dust in blast furnace dust and coke granule, but the method can not distinguish coal dust and the coke of different producing level, and distinguish the coal dust of different producing level and coke has great significance for the change analyzing blast furnace ironmaking process.In addition, petrographic analysis method only can be classified to the fuel particle in blast furnace dust, but cannot distinguish iron content particle.
Based on this, in order to fuel being classified according to the situation of being utilized, specifically can distinguish iron-bearing material in blast furnace dust again, be necessary to set up a kind of blast furnace dust thing phase sorting technique for blast furnace ironmaking process.
Summary of the invention
For prior art Problems existing, embodiments provide a kind of blast furnace dust thing phase sorting technique and device, fuel can not be classified to blast furnace dust according to being utilized situation for solving in prior art, the concrete technical matters distinguished can be carried out to iron-bearing material in blast furnace dust again.
The invention provides a kind of blast furnace dust thing phase sorting technique, described method comprises:
Gather the view data of described blast furnace dust, extract the characteristic parameter of blast furnace dust in described view data, according to described characteristic parameter, described blast furnace dust is divided into the first coke granule, pulverized coal particle and iron-bearing mineral particle;
According to the first parameter area, described first coke granule is divided into the second coke granule and burnt change char particle;
According to the second parameter area, raw coal particle, thermal change raw coal particle, coal is divided into by described pulverized coal particle to become residue and lime-ash;
According to the 3rd parameter area, described iron-bearing mineral particle is divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles.
In such scheme, described characteristic parameter comprises: particle gray scale, grain diameter, particle shape and particle reflectivity.
In such scheme, described according to the first parameter area, be divided into by described first coke granule the second coke granule and the burnt char particle that becomes to comprise:
When determining that particle gray scale is between 100 ~ 150, grain diameter is not less than 100 microns, and particle shape is without corner angle, when particle reflectivity is between 2.0 ~ 3.0, determines that described first coke granule is described second coke granule;
When determining that described particle gray scale is between 230 ~ 255, described grain diameter is not less than 100 microns, and described particle shape is without corner angle, determines that described first coke granule is that described Jiao becomes char particle.
In such scheme, according to the second parameter area, raw coal particle, thermal change raw coal particle, coal change residue and lime-ash is divided into by described pulverized coal particle to comprise:
When determining that particle gray scale is between 150 ~ 230, grain diameter is not more than 100 microns, and particle shape, for there being corner angle, when particle reflectivity is between 1.0 ~ 2.0, determines that described coal dust is described raw coal particle;
When determining that described particle gray scale is between 100 ~ 150, described grain diameter is not more than 100 microns, and described particle shape, for there being corner angle, when described particle reflectivity is between 2.0 ~ 3.0, determines that described coal dust is described thermal change raw coal particle;
When determining that described particle gray scale is between 230 ~ 255, described grain diameter is not less than 100 microns, when described particle shape is for there being corner angle, determines that described coal dust is that described coal becomes residue;
When determining that described particle gray scale is between 0 ~ 50, described grain diameter is not more than 100 microns, when described particle shape is for there being corner angle, determines that described coal dust is described lime-ash.
In such scheme, described according to the 3rd parameter area, be divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles to comprise described iron-bearing mineral particle:
When determining that particle gray scale is between 50 ~ 100, when grain diameter is not more than 0.5mm, determine that described iron-bearing mineral particle is described pellet composition granule;
When determining that described particle gray scale is between 100 ~ 200, described grain diameter is not less than 0.074mm, and when the particle gray scale difference of diverse location is not less than 50, determines that described iron-bearing mineral particle is described sintering deposit particle;
When determining that described particle gray scale is between 100 ~ 200, described grain diameter is not less than 0.074mm, and when the particle gray scale difference of described diverse location is not more than 10, determines that described iron-bearing mineral particle is described lump ore particle;
When determining that described particle reflectivity is not less than 4.0, when described particle gray scale is not more than 10, determine that described iron-bearing mineral particle is described metallic particles.
Present invention also offers a kind of blast furnace dust thing phase sorter, described device comprises:
Image acquisition units, described image acquisition units is for gathering the view data of described blast furnace dust;
Extraction unit, described blast furnace dust, for extracting the characteristic parameter of blast furnace dust in described view data, is divided into the first coke granule, pulverized coal particle and iron-bearing mineral particle according to described characteristic parameter by described extraction unit;
First determining unit, described first determining unit is used for according to the first parameter area, described first coke granule is divided into the second coke granule and burnt change char particle;
Second determining unit, described second determining unit is used for according to the second parameter area, is divided into by described pulverized coal particle raw coal particle, thermal change raw coal particle, coal to become residue and lime-ash;
3rd determining unit, described 3rd determining unit is used for according to the 3rd parameter area, and described iron-bearing mineral particle is divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles.
In such scheme, described blast furnace gas grey parameter comprises: particle gray scale, grain diameter, particle shape and particle reflectivity.
In such scheme, described first determining unit is used for according to the first parameter area, is divided into by described first coke granule the second coke granule and the burnt char particle that becomes to comprise:
When described first determining unit particle gray scale is between 100 ~ 150, grain diameter is not less than 100 microns, and particle shape is without corner angle, when particle reflectivity is between 2.0 ~ 3.0, determines that described first coke granule is described second coke granule;
When described first determining unit determines that described particle gray scale is between 230 ~ 255, described grain diameter is not less than 100 microns, and described particle shape is without corner angle, determines that described first coke granule is that described Jiao becomes char particle.
In such scheme, described second determining unit is used for according to the second parameter area, is divided into by described pulverized coal particle raw coal particle, thermal change raw coal particle, coal change residue and lime-ash to comprise:
When described second determining unit determination particle gray scale is between 150 ~ 230, grain diameter is not more than 100 microns, and particle shape, for there being corner angle, when particle reflectivity is between 1.0 ~ 2.0, determines that described coal dust is described raw coal particle;
When described second determining unit determines that described particle gray scale is between 100 ~ 150, described grain diameter is not more than 100 microns, and described particle shape, for there being corner angle, when described particle reflectivity is between 2.0 ~ 3.0, determines that described coal dust is described thermal change raw coal particle;
When determining that described particle gray scale is between 230 ~ 255, described grain diameter is not less than 100 microns, when described particle shape is for there being corner angle, determines that described coal dust is that described coal becomes residue;
When described second determining unit determines that described particle gray scale is between 0 ~ 50, described grain diameter is not more than 100 microns, when described particle shape is for there being corner angle, determines that described coal dust is described lime-ash.
In such scheme, described 3rd determining unit is used for according to the 3rd parameter area, is divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles to comprise described iron-bearing mineral particle:
When determining that particle gray scale is between 50 ~ 100, when grain diameter is not more than 0.5mm, determine that described iron-bearing mineral particle is described pellet composition granule;
When described 3rd determining unit determines that described particle gray scale is between 100 ~ 200, described grain diameter is not less than 0.074mm, and when the particle gray scale difference of diverse location is not less than 50, determines that described iron-bearing mineral particle is described sintering deposit particle;
When described 3rd determining unit determines that described particle gray scale is between 100 ~ 200, described grain diameter is not less than 0.074mm, and when the particle gray scale difference of described diverse location is not more than 10, determines that described iron-bearing mineral particle is described lump ore particle;
When described 3rd determining unit determines that described particle reflectivity is not less than 4.0, when described particle gray scale is not more than 10, determine that described iron-bearing mineral particle is described metallic particles.
The invention provides a kind of blast furnace dust thing phase sorting technique and device, described method comprises: identify blast furnace gas grey parameter, according to described blast furnace gas grey parameter, described blast furnace dust is divided into the first coke granule, pulverized coal particle and iron-bearing mineral particle; According to the first parameter area, described first coke granule is divided into the second coke granule and burnt change char particle; According to the second parameter area, raw coal particle, thermal change raw coal particle, coal is divided into by described pulverized coal particle to become residue and lime-ash; According to the 3rd parameter area, described iron-bearing mineral particle is divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles; So, fuel can being classified to blast furnace dust according to being utilized situation, specifically can distinguish iron-bearing material in blast furnace dust again, providing reference frame for analyzing blast fumance situation further.
Accompanying drawing explanation
A kind of blast furnace dust thing phase sorting technique schematic flow sheet that Fig. 1 provides for the embodiment of the present invention one;
The micro-structure diagram of the second coke granule that Fig. 2 provides for the embodiment of the present invention one;
Fig. 3 becomes the micro-structure diagram of char particle for Jiao that the embodiment of the present invention one provides;
The micro-structure diagram of the raw coal particle that Fig. 4 provides for the embodiment of the present invention one;
The micro-structure diagram of the thermal change raw coal particle that Fig. 5 provides for the embodiment of the present invention one;
The micro-structure diagram of the coal change residue that Fig. 6 provides for the embodiment of the present invention one;
The micro-structure diagram of the lime-ash that Fig. 7 provides for the embodiment of the present invention one;
The micro-structure diagram of the pellet composition granule that Fig. 8 provides for the embodiment of the present invention one;
The micro-structure diagram of the sintering deposit particle that Fig. 9 provides for the embodiment of the present invention one;
The micro-structure diagram of the lump ore particle that Figure 10 provides for the embodiment of the present invention one;
The micro-structure diagram of the metallic particles that Figure 11 provides for the embodiment of the present invention one;
A kind of blast furnace dust thing phase sorter structural representation that Figure 12 provides for the embodiment of the present invention two.
Embodiment
In order to fuel being classified to blast furnace dust according to being utilized situation, specifically can distinguish iron-bearing material in blast furnace dust again, the invention provides a kind of blast furnace dust thing phase sorting technique and device, described method comprises: identify blast furnace gas grey parameter, according to described blast furnace gas grey parameter, described blast furnace dust is divided into the first coke granule, pulverized coal particle and iron-bearing mineral particle; According to the first parameter area, described first coke granule is divided into the second coke granule and burnt change char particle; According to the second parameter area, raw coal particle, thermal change raw coal particle, coal is divided into by described pulverized coal particle to become residue and lime-ash; According to the 3rd parameter area, described iron-bearing mineral particle is divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles.
Below by drawings and the specific embodiments, technical scheme of the present invention is described in further detail.
Embodiment one
The present embodiment provides a kind of blast furnace dust thing phase sorting technique, and as shown in Figure 1, described method mainly comprises following step:
Step 110, gathers the view data of described blast furnace dust.
In this step, gathered the view data of described blast furnace dust by image acquisition units after, pre-service is carried out to described view data and preserves, then analog-to-digital conversion process is carried out to described view data, described view data is converted to digital signal.
Step 111, extracts the characteristic parameter of blast furnace dust in described view data, according to described characteristic parameter, described blast furnace dust is divided into the first coke granule, pulverized coal particle and iron-bearing mineral particle.
In this step, extracted the characteristic parameter of blast furnace dust in the view data after analog to digital conversion by extraction unit; Described characteristic parameter comprises: particle gray scale, grain diameter, particle shape and particle reflectivity.
According to described characteristic parameter, described blast furnace dust is divided into the first coke granule, pulverized coal particle and iron-bearing mineral particle.Wherein, when described particle gray scale is between 100-150 or 230-255, described grain diameter is not more than 100 microns, when described particle proterties is without corner angle, determines that described blast furnace dust is the first coke granule;
When described particle gray scale is between 100-255, described grain diameter is not more than 100 microns, when described particle proterties is for there being corner angle, determines that described blast furnace dust is pulverized coal particle;
When described particle gray scale is between 0-10 or 100-200, described reflectivity is greater than 3.0, determines that described blast furnace dust is iron-bearing mineral particle.
Here, described first coke granule is the coke particle that fragmentation or cracking are produced in blast furnace, and described pulverized coal particle is pulverized coal particle imperfect combustion after entering blast furnace by Blast Furnace Injection, the powder of described iron-bearing mineral particle for producing after iron-containing charge fragmentation.
Step 112, according to the first parameter area, is divided into the second coke granule and burnt change char particle by described first coke granule.
In this step, determine described first parameter area by the first determining unit, according to the first parameter area, described first coke granule is divided into the second coke granule and burnt change char particle.Here, be divided into the second coke granule and Jiao to become char particle described first coke granule according to the situation that is utilized of described first coke granule.What the micromechanism of described second coke granule maintained described first coke granule surrounds and watches structure, and described Jiao becomes the micromechanism that char particle part maintains the first coke granule, and there is obvious scaling loss vestige on surface.Wherein, as shown in Figure 2, described Jiao becomes the micromechanism of char particle as shown in Figure 3 to the micromechanism of described second coke granule.
Particularly, when determining that the particle gray scale of the first coke is between 100 ~ 150, grain diameter is not less than 100 microns, and particle shape is without corner angle, when particle reflectivity is between 2.0 ~ 3.0, determines that described first coke granule is described second coke granule;
When determining that the particle gray scale of described first coke is between 230 ~ 255, described grain diameter is not less than 100 microns, and described particle shape is without corner angle, determines that described first coke granule is that described Jiao becomes char particle.
Step 113, according to the second parameter area, is divided into raw coal particle, thermal change raw coal particle, coal to become residue and lime-ash by described pulverized coal particle.
In this step, determine the second parameter area by the second determining unit, be divided into by described pulverized coal particle raw coal particle, thermal change raw coal particle, coal to become residue and lime-ash.Here, be to be divided into by described pulverized coal particle raw coal particle, thermal change raw coal particle, coal to become residue and lime-ash according to the utilization power of described pulverized coal particle.Described raw coal particle remains original micromechanism of pulverized coal particle, and surface is comparatively smooth, does not have or only has a small amount of pore; Described thermal change raw coal particle surface has a large amount of pores, simultaneously the slightly deformation of whole particle; It is comparatively serious that described coal becomes carbon residue surface scaling loss; The particle shape of described lime-ash is similar to pulverized coal particle, has the vestige of obvious hand breaking.Wherein, as shown in Figure 4, the micromechanism of described thermal change raw coal particle as shown in Figure 5 for the micromechanism of described raw coal particle; Described coal becomes the micromechanism of residue as shown in Figure 6, and the micromechanism of described lime-ash as shown in Figure 7.
Particularly, when determining that particle gray scale is between 150 ~ 230, grain diameter is not more than 100 microns, and particle shape, for there being corner angle, when particle reflectivity is between 1.0 ~ 2.0, determines that described coal dust is described raw coal particle;
When determining that described particle gray scale is between 100 ~ 150, described grain diameter is not more than 100 microns, and described particle shape, for there being corner angle, when described particle reflectivity is between 2.0 ~ 3.0, determines that described coal dust is described thermal change raw coal particle;
When determining that described particle gray scale is between 230 ~ 255, described grain diameter is not less than 100 microns, when described particle shape is for there being corner angle, determines that described coal dust is that described coal becomes residue;
When determining that described particle gray scale is between 0 ~ 50, described grain diameter is not more than 100 microns, when described particle shape is for there being corner angle, determines that described coal dust is described lime-ash.
Step 114, according to the 3rd parameter area, is divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles by described iron-bearing mineral particle.
In this step, determine the 3rd parameter area by the 3rd determining unit, described iron-bearing mineral particle is divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles.Here, be divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles according to the situation that is utilized of described iron-bearing mineral particle.Described pellet composition granule is brilliant white, and described sintering deposit particle remains the original structure of affiliated iron-bearing mineral particle substantially, mostly become magnetic iron ore and calcium ferrite pilotaxitic texture or haematite bones of the body shape structure, and particle is larger; Described lump ore granular texture is comparatively even, and particle is larger; Described metallic particles obtained by after sintering deposit, pelletizing or lump ore particle reduction, and because it is Metal Phase, all to compare other iron content particles bright.Wherein, as depicted in figure 8, the micromechanism of described sintering deposit particle as figure 9 for the micromechanism of described pellet composition granule; As shown in Figure 10, the micromechanism of described metallic particles as shown in figure 11 for the micromechanism of described lump ore particle.
Particularly, when determining that particle gray scale is between 50 ~ 100, when grain diameter is not more than 0.5mm, determine that described iron-bearing mineral particle is described pellet composition granule;
When determining that described particle gray scale is between 100 ~ 200, described grain diameter is not less than 0.074mm, and when the particle gray scale difference of diverse location is not less than 50, determines that described iron-bearing mineral particle is described sintering deposit particle;
When determining that described particle gray scale is between 100 ~ 200, described grain diameter is not less than 0.074mm, and when the particle gray scale difference of described diverse location is not more than 10, determines that described iron-bearing mineral particle is described lump ore particle;
When determining that described particle reflectivity is not less than 4.0, when described particle gray scale is not more than 10, determine that described iron-bearing mineral particle is described metallic particles.
The blast furnace dust thing phase sorting technique that the present embodiment provides, fuel can be classified to blast furnace dust according to being utilized situation, iron-bearing material in blast furnace dust specifically being distinguished again, providing reference frame for analyzing blast fumance situation further.
Embodiment two
Corresponding to embodiment one, the present embodiment additionally provides a kind of blast furnace dust thing phase sorter, and as shown in figure 12, described device comprises: image acquisition units 1, extraction unit 2, first determining unit 3, second determining unit 4 and the 3rd determining unit 5; Wherein,
After described image acquisition units 1 gathers the view data of described blast furnace dust, pre-service is carried out to view data and preserves, then analog-to-digital conversion process is carried out to described view data, described view data is converted to digital signal.
After described view data is converted to digital signal by described image acquisition units 1, described converted images data are sent to described extraction unit 2, and described extraction unit 2 extracts the characteristic parameter of blast furnace dust in described view data.According to described characteristic parameter, described blast furnace dust is divided into the first coke granule, pulverized coal particle and iron-bearing mineral particle; Wherein, described characteristic parameter comprises: particle gray scale, grain diameter, particle shape and particle reflectivity.
Particularly, when described particle gray scale is between 100-150 or 230-255, described grain diameter is not more than 100 microns, and when described particle proterties is without corner angle, described extraction unit 2 determines that described blast furnace dust is the first coke granule;
When described particle gray scale is between 100-255, described grain diameter is not more than 100 microns, and when described particle proterties is for there being corner angle, described extraction unit 2 determines that described blast furnace dust is pulverized coal particle;
When described particle gray scale is between 0-10 or 100-200, described reflectivity is greater than 3.0, and described extraction unit 2 determines that described blast furnace dust is iron-bearing mineral particle.
Here, described first coke granule is the coke particle that fragmentation or cracking are produced in blast furnace, and described pulverized coal particle is pulverized coal particle imperfect combustion after entering blast furnace by Blast Furnace Injection, the powder of described iron-bearing mineral particle for producing after iron-containing charge fragmentation.
After described extraction unit 2 extracts the characteristic parameter of blast furnace dust in described view data, described characteristic parameter is sent to described first determining unit 3, described second determining unit 4 and described 3rd determining unit 5.
After described first determining unit 3 receives characteristic parameter, according to the first parameter area, described first coke granule is divided into the second coke granule and burnt change char particle; Here, described first determining unit 3 is divided into the second coke granule and Jiao to become char particle described first coke granule according to the situation that is utilized of described first coke granule.What the micromechanism of described second coke granule maintained described first coke granule surrounds and watches structure, and described Jiao becomes the micromechanism that char particle part maintains the first coke granule, and there is obvious scaling loss vestige on surface.Wherein, as shown in Figure 2, described Jiao becomes the micromechanism of char particle as shown in Figure 3 to the micromechanism of described second coke granule.
Particularly, when described first determining unit 3 determines that the particle gray scale of the first coke is between 100 ~ 150, grain diameter is not less than 100 microns, and particle shape is without corner angle, when particle reflectivity is between 2.0 ~ 3.0, determine that described first coke granule is described second coke granule;
When described first determining unit 3 determines that the particle gray scale of described first coke is between 230 ~ 255, described grain diameter is not less than 100 microns, and described particle shape is without corner angle, determines that described first coke granule is that described Jiao becomes char particle.
After described second determining unit 4 receives characteristic parameter, according to the second parameter area, raw coal particle, thermal change raw coal particle, coal is divided into by described pulverized coal particle to become residue and lime-ash.Here, be to be divided into by described pulverized coal particle raw coal particle, thermal change raw coal particle, coal to become residue and lime-ash according to the utilization power of described pulverized coal particle.Described raw coal particle remains original micromechanism of pulverized coal particle, and surface is comparatively smooth, does not have or only has a small amount of pore; Described thermal change raw coal particle surface has a large amount of pores, simultaneously the slightly deformation of whole particle; It is comparatively serious that described coal becomes carbon residue surface scaling loss; The particle shape of described lime-ash is similar to pulverized coal particle, has the vestige of obvious hand breaking.Wherein, as shown in Figure 4, the micromechanism of described thermal change raw coal particle as shown in Figure 5 for the micromechanism of described raw coal particle; Described coal becomes the micromechanism of residue as shown in Figure 6, and the micromechanism of described lime-ash as shown in Figure 7.
Particularly, when described second determining unit 4 determines that particle gray scale is between 150 ~ 230, grain diameter is not more than 100 microns, and particle shape, for there being corner angle, when particle reflectivity is between 1.0 ~ 2.0, determines that described coal dust is described raw coal particle;
When described second determining unit 4 determines that described particle gray scale is between 100 ~ 150, described grain diameter is not more than 100 microns, described particle shape, for there being corner angle, when described particle reflectivity is between 2.0 ~ 3.0, determines that described coal dust is described thermal change raw coal particle;
When determining that described particle gray scale is between 230 ~ 255, described grain diameter is not less than 100 microns, when described particle shape is for there being corner angle, determines that described coal dust is that described coal becomes residue;
When described second determining unit 4 determines that described particle gray scale is between 0 ~ 50, described grain diameter is not more than 100 microns, when described particle shape is for there being corner angle, determines that described coal dust is described lime-ash.
After described 3rd determining unit 5 receives characteristic parameter, according to the 3rd parameter area, described iron-bearing mineral particle is divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles.Here, be divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles according to the situation that is utilized of described iron-bearing mineral particle.Described pellet composition granule is brilliant white, and described sintering deposit particle remains the original structure of affiliated iron-bearing mineral particle substantially, mostly become magnetic iron ore and calcium ferrite pilotaxitic texture or haematite bones of the body shape structure, and particle is larger; Described lump ore granular texture is comparatively even, and particle is larger; Described metallic particles obtained by after sintering deposit, pelletizing or lump ore particle reduction, and because it is Metal Phase, all to compare other iron content particles bright.Wherein, as depicted in figure 8, the micromechanism of described sintering deposit particle as figure 9 for the micromechanism of described pellet composition granule; As shown in Figure 10, the micromechanism of described metallic particles as shown in figure 11 for the micromechanism of described lump ore particle.
Particularly, when described 3rd determining unit 5 determines that particle gray scale is between 50 ~ 100, when grain diameter is not more than 0.5mm, determine that described iron-bearing mineral particle is described pellet composition granule;
When described 3rd determining unit 5 determines that described particle gray scale is between 100 ~ 200, described grain diameter is not less than 0.074mm, and when the particle gray scale difference of diverse location is not less than 50, determines that described iron-bearing mineral particle is described sintering deposit particle;
When described 3rd determining unit 5 determines that described particle gray scale is between 100 ~ 200, described grain diameter is not less than 0.074mm, and when the particle gray scale difference of described diverse location is not more than 10, determines that described iron-bearing mineral particle is described lump ore particle;
When described 3rd determining unit 5 determines that described particle reflectivity is not less than 4.0, when described particle gray scale is not more than 10, determine that described iron-bearing mineral particle is described metallic particles.
In practical application, described image acquisition units 1 can be realized by the collector of blast furnace dust thing phase sorter, described extraction unit 2, described first determining unit 3, described second determining unit 4 and described 3rd determining unit 5 can by the central processing unit (CPU of blast furnace dust thing phase sorter, CentralProcessing Unit), programmable logic controller (PLC) (PLC, Programmable Logic Controller) and field-programmable gate array (FPGA, Field-Programmable Gate Array) realization.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a blast furnace dust thing phase sorting technique, is characterized in that, described method comprises:
Gather the view data of described blast furnace dust, extract the characteristic parameter of blast furnace dust in described view data, according to described characteristic parameter, described blast furnace dust is divided into the first coke granule, pulverized coal particle and iron-bearing mineral particle;
According to the first parameter area, described first coke granule is divided into the second coke granule and burnt change char particle;
According to the second parameter area, raw coal particle, thermal change raw coal particle, coal is divided into by described pulverized coal particle to become residue and lime-ash;
According to the 3rd parameter area, described iron-bearing mineral particle is divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles.
2. the method for claim 1, is characterized in that, described characteristic parameter comprises: particle gray scale, grain diameter, particle shape and particle reflectivity.
3. method as claimed in claim 1, is characterized in that, described according to the first parameter area, is divided into by described first coke granule the second coke granule and the burnt char particle that becomes to comprise:
When determining that particle gray scale is between 100 ~ 150, grain diameter is not less than 100 microns, and particle shape is without corner angle, when particle reflectivity is between 2.0 ~ 3.0, determines that described first coke granule is described second coke granule;
When determining that described particle gray scale is between 230 ~ 255, described grain diameter is not less than 100 microns, and described particle shape is without corner angle, determines that described first coke granule is that described Jiao becomes char particle.
4. the method for claim 1, is characterized in that, according to the second parameter area, is divided into by described pulverized coal particle raw coal particle, thermal change raw coal particle, coal change residue and lime-ash to comprise:
When determining that particle gray scale is between 150 ~ 230, grain diameter is not more than 100 microns, and particle shape, for there being corner angle, when particle reflectivity is between 1.0 ~ 2.0, determines that described coal dust is described raw coal particle;
When determining that described particle gray scale is between 100 ~ 150, described grain diameter is not more than 100 microns, and described particle shape, for there being corner angle, when described particle reflectivity is between 2.0 ~ 3.0, determines that described coal dust is described thermal change raw coal particle;
When determining that described particle gray scale is between 230 ~ 255, described grain diameter is not less than 100 microns, when described particle shape is for there being corner angle, determines that described coal dust is that described coal becomes residue;
When determining that described particle gray scale is between 0 ~ 50, described grain diameter is not more than 100 microns, when described particle shape is for there being corner angle, determines that described coal dust is described lime-ash.
5. the method for claim 1, is characterized in that, described according to the 3rd parameter area, is divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles to comprise described iron-bearing mineral particle:
When determining that particle gray scale is between 50 ~ 100, when grain diameter is not more than 0.5mm, determine that described iron-bearing mineral particle is described pellet composition granule;
When determining that described particle gray scale is between 100 ~ 200, described grain diameter is not less than 0.074mm, and when the particle gray scale difference of diverse location is not less than 50, determines that described iron-bearing mineral particle is described sintering deposit particle;
When determining that described particle gray scale is between 100 ~ 200, described grain diameter is not less than 0.074mm, and when the particle gray scale difference of described diverse location is not more than 10, determines that described iron-bearing mineral particle is described lump ore particle;
When determining that described particle reflectivity is not less than 4.0, when described particle gray scale is not more than 10, determine that described iron-bearing mineral particle is described metallic particles.
6. a blast furnace dust thing phase sorter, is characterized in that, described device comprises:
Image acquisition units, described image acquisition units is for gathering the view data of described blast furnace dust;
Extraction unit, described blast furnace dust, for extracting the characteristic parameter of blast furnace dust in described view data, is divided into the first coke granule, pulverized coal particle and iron-bearing mineral particle according to described characteristic parameter by described extraction unit;
First determining unit, described first determining unit is used for according to the first parameter area, described first coke granule is divided into the second coke granule and burnt change char particle;
Second determining unit, described second determining unit is used for according to the second parameter area, is divided into by described pulverized coal particle raw coal particle, thermal change raw coal particle, coal to become residue and lime-ash;
3rd determining unit, described 3rd determining unit is used for according to the 3rd parameter area, and described iron-bearing mineral particle is divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles.
7. device as claimed in claim 6, it is characterized in that, described blast furnace gas grey parameter comprises: particle gray scale, grain diameter, particle shape and particle reflectivity.
8. device as claimed in claim 6, is characterized in that, described first determining unit is used for according to the first parameter area, is divided into by described first coke granule the second coke granule and the burnt char particle that becomes to comprise:
When described first determining unit determination particle gray scale is between 100 ~ 150, grain diameter is not less than 100 microns, and particle shape is without corner angle, when particle reflectivity is between 2.0 ~ 3.0, determines that described first coke granule is described second coke granule;
When described first determining unit determines that described particle gray scale is between 230 ~ 255, described grain diameter is not less than 100 microns, and described particle shape is without corner angle, determines that described first coke granule is that described Jiao becomes char particle.
9. device as claimed in claim 6, is characterized in that, described second determining unit is used for according to the second parameter area, is divided into by described pulverized coal particle raw coal particle, thermal change raw coal particle, coal change residue and lime-ash to comprise:
When described second determining unit determination particle gray scale is between 150 ~ 230, grain diameter is not more than 100 microns, and particle shape, for there being corner angle, when particle reflectivity is between 1.0 ~ 2.0, determines that described coal dust is described raw coal particle;
When described second determining unit determines that described particle gray scale is between 100 ~ 150, described grain diameter is not more than 100 microns, and described particle shape, for there being corner angle, when described particle reflectivity is between 2.0 ~ 3.0, determines that described coal dust is described thermal change raw coal particle;
When determining that described particle gray scale is between 230 ~ 255, described grain diameter is not less than 100 microns, when described particle shape is for there being corner angle, determines that described coal dust is that described coal becomes residue;
When described second determining unit determines that described particle gray scale is between 0 ~ 50, described grain diameter is not more than 100 microns, when described particle shape is for there being corner angle, determines that described coal dust is described lime-ash.
10. device as claimed in claim 6, is characterized in that, described 3rd determining unit is used for according to the 3rd parameter area, is divided into pellet composition granule, sintering deposit particle, lump ore particle and metallic particles to comprise described iron-bearing mineral particle:
When determining that particle gray scale is between 50 ~ 100, when grain diameter is not more than 0.5mm, determine that described iron-bearing mineral particle is described pellet composition granule;
When described 3rd determining unit determines that described particle gray scale is between 100 ~ 200, described grain diameter is not less than 0.074mm, and when the particle gray scale difference of diverse location is not less than 50, determines that described iron-bearing mineral particle is described sintering deposit particle;
When described 3rd determining unit determines that described particle gray scale is between 100 ~ 200, described grain diameter is not less than 0.074mm, and when the particle gray scale difference of described diverse location is not more than 10, determines that described iron-bearing mineral particle is described lump ore particle;
When described 3rd determining unit determines that described particle reflectivity is not less than 4.0, when described particle gray scale is not more than 10, determine that described iron-bearing mineral particle is described metallic particles.
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Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Applicant after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Applicant before: Capital Iron & Steel General Company |
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Application publication date: 20151021 |