CN102808054A - Method for measuring mixing condition of bulk material interfacial effect of material distribution model of blast furnace - Google Patents
Method for measuring mixing condition of bulk material interfacial effect of material distribution model of blast furnace Download PDFInfo
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- CN102808054A CN102808054A CN2012103021528A CN201210302152A CN102808054A CN 102808054 A CN102808054 A CN 102808054A CN 2012103021528 A CN2012103021528 A CN 2012103021528A CN 201210302152 A CN201210302152 A CN 201210302152A CN 102808054 A CN102808054 A CN 102808054A
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Abstract
The invention relates to a method for measuring a mixing condition of a bulk material interfacial effect of a material distribution model of a blast furnace and belongs to the technical field of model test measurement of metallurgical industry. According to the technical field, the method comprises the following steps of: before material distribution, spraying two kinds of dying tracer agents with different colors onto the surfaces of sintering ores and cokes respectively to dye different colors on the surfaces of the sintering ores and cokes so as to facilitate subsequent observation; and drawing a mixing graph of the bulk materials in the material distribution model of the blast furnace to finish the material distribution interfacial effect mixing test of the material distribution model of the blast furnace. The method has the advantages that the method is convenient and intuitive, wide in application field, and easy to operate; the mixing condition can be measured accurately; test materials and furnace charges can be saved, the test working amount can be reduced, and the distribution rule of the section shapes of the bulk materials can be resolved specifically; and the method is a very practical method for researching a material distribution rule in the model in a laboratory.
Description
Technical field
The present invention relates to the troubled water measuring method of the diffusing shape material interfacial effect of a kind of blast furnace material distribution model, belong to metallurgy industry model trial field of measuring technique.
Background technology
When the blast furnace material distribution model trial is carried out in the metallurgical test chamber; Carry out cloth work through regular meeting; Be about to different diffusing shape material such as agglomerate and coke and carry out cloth according to the material system of production scene in batches, because agglomerate and coke size there are differences, the interfacial effect phenomenon will take place in this.Interfacial effect is meant the interaction of different furnace charges on charge level; Mainly contain mixing (i.e. infiltration) and distortion (rolling) two aspects; Shape of charge level to cloth is influential, and it to the defective that blast furnace operating brings is: at first it has destroyed the laminate structure of furnace charge, makes the cloth complicated operationization; Secondly, because interpenetrating on ore deposit, Jiao's the interaction interface is that inevitably this can have a negative impact to permeability of stock column, the part ventilation property of promptly mixing bed thickness in the interfacial effect is poor.In a word; The defective of interfacial effect is that the burnt shape of charge level in ore deposit is changed; Close with the naked eye being not easy of color of institute such as agglomerate and coke spreading shape material distinguished in addition; And segregation and rolling take place when deforming, give and measure interface shape with the research interfacial effect and be adjusted into rational shape of charge level and increased difficulty.The cloth interfacial effect of blast furnace material distribution model is divided into mixing and is out of shape two kinds of situation, adopts two kinds of methods to measure.
Blast furnace material distribution model trial proprietary term is explained:
The ring position is meant furnace throat is divided into 11 five equilibriums by area, an angular range of the corresponding no clock distributor chute of each homalographic annulus.
Encircle the corresponding some rings position of angle that biased difference is meant cloth material system, if the interfacial effect phenomenon does not take place, the material of this angle cloth should drop on this ring position, and Here it is, and ring is biased poor.
Furnace charge rolls: because the shape of charge level in the stove is a curve shape, after furnace charge was distributed into blast furnace throat by ring position corresponding angle, furnace charge will produce the rolling phenomenon on the curve shape of charge level, and rolling amount and shape of charge level curvilinear slope have relation.
Shape of charge level: blast furnace throat is a circle, the shape on whole furnace throat area to blast furnace in coal gas be distributed with effects of action.Generally be meant the curve shape of furnace throat section for scientific research; Promptly imagination is cut the furnace throat section by a certain diametric(al); What the curve shape of furnace throat surface material distribution, blast furnace operating personnel wanted to obtain is the pattern curve of the material of institute's cloth along the furnace throat section; To certain ring position coal gas stream development fully; Be that gas speed is fast; Show as the gas temperature height; CO2% is lower; Will increase the cloth amount and not hope that institute's cloth initial ring is biased poor in this ring position; The shape of charge level gradient is little; Rolling amount is little, can reach the effect that adjustment coal gas distributes like this.
Summary of the invention
The object of the invention provides the troubled water measuring method of the diffusing shape material interfacial effect of a kind of blast furnace material distribution model; In bf model, the interfacial effect troubled water of the shape material that looses is measured; The sintering ore bed that offers a clear explanation is penetrated into the thickness of coke layer; Measure agglomerate or coke by ring position cloth furnace charge rolling quantity behind the furnace throat, solve the problems referred to above that exist in the background technology.
Technical scheme of the present invention is:
The troubled water measuring method of the diffusing shape material interfacial effect of a kind of blast furnace material distribution model comprises following operation steps:
1. before the cloth, two kinds of color different dyeing tracer agents are sprayed at agglomerate and coke surface respectively, for it catches different colours so that later observation;
2. cloth in the blast furnace material distribution model, according to known theory of similitude, the cloth amount of computation model test agglomerate and coke, this agglomerate and coke are painted test furnace charge;
3. on the blast furnace material distribution model, set up coordinate system; Based on the various colors state; Measure the charge level section configuration and the height of each ring position; Comprise pure coke height, coke and the height of sintering deposit mixing, the height of pure sintering deposit, draw the mixed graph of the shape material that looses in the blast furnace material distribution model then, accomplish test;
The dye tracer of said two kinds of different colours is respectively dye tracer LZH1 and dye tracer LZH2; Dye tracer LZH1 be with white spray paint with solvent or diluent according to the 30-40% white paint; The 60-70% solvent or diluent; The two total ratio 100% is mixing at first, adds the clay of total mass 5% after mixing and 5% talcum powder then, forms pearl solution at last; Dye tracer LZH2 be black is sprayed paint pitch-dark with solvent or diluent according to 30-40%, the 60-70% solvent or diluent, the two total ratio 100% is mixing at first, add to mix the clay of back total mass 5% and 5% talcum powder then, forms dark solution at last.
Dye tracer LZH1 of the present invention and dye tracer LZH2 although their colors are different, have following characteristic: 1. in light weight; Be prone to spray; 2. cost is low, and 3. bright-colored short-term is difficult for dropping, and 4. is sprayed at agglomerate and coke surface and does not change shape.
Advantage of the present invention and effect: present method Application Areas is wide; Simple to operate, measure accurately, convenient directly perceived; Test materials and test furnace charge had both been practiced thrift; Reducing the test work amount again, can resolve the regularity of distribution of the shape material section form of loosing targetedly, is the very practical inventive method of cloth rule in the research lab model.
Description of drawings
Accompanying drawing 1 is the mixing synoptic diagram of diffusing shape material in the embodiment of the invention blast furnace material distribution model;
Among the figure: 1-coke, 2-agglomerate, 3-coke, 4-coke+agglomerate.
Embodiment
Below, the present invention is further specified through embodiment.
Embodiment is the mixing aspect of blast furnace material distribution model inner boundary effect.
Two kinds of different furnace charges of granularity perhaps are respectively charged in the stove simultaneously, on the cloth interface, interpenetrate, and form mixolimnion, the mixing aspect of interfacial effect that Here it is.Interfacial effect to mixing phenomena; Measuring method of the present invention is: the shape material that looses mixes the back on the interface; Agglomerate drops on above the coke, and the center less agglomerate of branch granularity is seeped in the middle of the hole of the big coke layer of granularity, and on the interface, forming in the ore deposit has Jiao; The burnt mixolimnion in ore deposit that the ore deposit is arranged among Jiao is with reference to accompanying drawing 1.
The troubled water measuring method of the diffusing shape material interfacial effect of a kind of blast furnace material distribution model comprises following operation steps:
1. dye tracer LZH1 and dye tracer LZH2 are ready to; Dye tracer LZH1 sprays paint white to mix according to the 1:3 mass percent with solvent or diluent, adds the clay of total mass 5% after mixing and 5% talcum powder then, forms pearl solution at last; Dye tracer LZH2 sprays paint black to mix according to the 1:3 mass percent with solvent or diluent, and adding is done the clay of quality 5% and 5% talcum powder after mixing then, forms dark solution at last;
2. before the cloth, dye tracer LZH1 and dye tracer LZH2 are sprayed at agglomerate and coke surface respectively, for it catches different colours so that later observation;
3. cloth in the blast furnace material distribution model, according to known theory of similitude, the cloth amount of computation model test agglomerate and coke, this agglomerate and coke are painted test furnace charge;
4. on the blast furnace material distribution model, set up system of coordinates; According to the distinct colors state; Measure the charge level section form and the height of each ring position, comprise the height of pure coke height, coke and agglomerate blended height, pure agglomerate, draw the mixed graph of the shape material that looses in the blast furnace material distribution model then; With reference to accompanying drawing 1, accomplish test.
Claims (2)
1. the blast furnace material distribution model troubled water measuring method of shape material interfacial effect of loosing is characterized in that comprising following operation steps:
1. before the cloth, two kinds of color different dyeing tracer agents are sprayed at agglomerate and coke surface respectively, for it catches different colours so that later observation;
2. cloth in the blast furnace material distribution model, according to known theory of similitude, the cloth amount of computation model test agglomerate and coke, this agglomerate and coke are painted test furnace charge;
3. on the blast furnace material distribution model, set up system of coordinates; According to the distinct colors state; Measure the charge level section form and the height of each ring position; The height that comprises pure coke height, coke and agglomerate blended height, pure agglomerate is drawn the mixed graph of the shape material that looses in the blast furnace material distribution model then, accomplishes test.
2. according to the loose troubled water measuring method of shape material interfacial effect of the said a kind of blast furnace material distribution model of claim 1; The dye tracer that it is characterized in that said two kinds of different colours is respectively dye tracer LZH1 and dye tracer LZH2; Dye tracer LZH1 be with white spray paint with solvent or diluent according to mass percent 30-40% white paint; The 60-70% solvent or diluent; The two total ratio 100% is mixing at first, adds the clay of total mass 5% after mixing and 5% talcum powder then, forms pearl solution at last; Dye tracer LZH2 be black is sprayed paint pitch-dark with solvent or diluent according to 30-40%, the 60-70% solvent or diluent, the two total ratio 100% is mixing at first, add to mix the clay of back total mass 5% and 5% talcum powder then, forms dark solution at last.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561419A (en) * | 2013-10-23 | 2015-04-29 | 江苏省沙钢钢铁研究院有限公司 | Separation method of blast furnace burden distribution experiment mixture |
| CN104561408A (en) * | 2013-10-23 | 2015-04-29 | 江苏省沙钢钢铁研究院有限公司 | Model experiment method for adjusting ore-coke ratio and airflow distribution of blast furnace |
| CN104561406A (en) * | 2013-10-23 | 2015-04-29 | 江苏省沙钢钢铁研究院有限公司 | Dynamic measurement method for material layer shape and mixing condition of blast furnace burden distribution experiment model |
| CN108548706A (en) * | 2018-04-20 | 2018-09-18 | 北京科技大学 | Measure the method that each component ratio is distributed in two-phase/multiphase gradient mixing bisque |
| CN108680512A (en) * | 2018-04-20 | 2018-10-19 | 北京科技大学 | Measure the method that each component ratio is distributed in two-phase/multiphase gradient mixing bisque |
-
2012
- 2012-08-23 CN CN2012103021528A patent/CN102808054A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 杜鹏宇等: "高炉比例模型数字图像处理分析布料料层情况", 《2008年中小高炉炼铁学术年会论文集》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561419A (en) * | 2013-10-23 | 2015-04-29 | 江苏省沙钢钢铁研究院有限公司 | Separation method of blast furnace burden distribution experiment mixture |
| CN104561408A (en) * | 2013-10-23 | 2015-04-29 | 江苏省沙钢钢铁研究院有限公司 | Model experiment method for adjusting ore-coke ratio and airflow distribution of blast furnace |
| CN104561406A (en) * | 2013-10-23 | 2015-04-29 | 江苏省沙钢钢铁研究院有限公司 | Dynamic measurement method for material layer shape and mixing condition of blast furnace burden distribution experiment model |
| CN108548706A (en) * | 2018-04-20 | 2018-09-18 | 北京科技大学 | Measure the method that each component ratio is distributed in two-phase/multiphase gradient mixing bisque |
| CN108680512A (en) * | 2018-04-20 | 2018-10-19 | 北京科技大学 | Measure the method that each component ratio is distributed in two-phase/multiphase gradient mixing bisque |
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Application publication date: 20121205 |