CN102808052B - A kind of deformation condition measuring method of blast furnace material distribution model bulk material interfacial effect - Google Patents
A kind of deformation condition measuring method of blast furnace material distribution model bulk material interfacial effect Download PDFInfo
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- CN102808052B CN102808052B CN201210302153.2A CN201210302153A CN102808052B CN 102808052 B CN102808052 B CN 102808052B CN 201210302153 A CN201210302153 A CN 201210302153A CN 102808052 B CN102808052 B CN 102808052B
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Abstract
The present invention relates to the deformation condition measuring method of a kind of blast furnace material distribution model bulk material interfacial effect, belong to metallurgy industry model test field of measuring technique.Technical scheme is: before cloth, dye tracers different for two kinds of colors is sprayed at sintering deposit and coke surface respectively, different colours is caught so that later observation for it, use special-purpose cutter furnace charge to be cut, separate, weigh, complete the cloth interfacial effect deformation test of blast furnace material distribution model.Advantages of the present invention and effect: this method application is wide, simple to operate, measure accurately, convenient directly perceived, both test material and test furnace charge had been saved, reduce again experiment work amount, it is possible to resolve the regularity of distribution of bulk material section configuration targetedly, be the inventive method that in research lab model, cloth regular is very useful.
Description
Technical field
The present invention relates to the deformation condition measuring method of a kind of blast furnace material distribution model bulk material interfacial effect, belong to metallurgy industry model test field of measuring technique.
Background technology
When metallurgical test room carries out blast furnace material distribution model test; often carry out cloth work; carrying out cloth by different bulk material such as sintering deposit and coke according to the material system of production scene, owing to sintering deposit and coke size there are differences, will there is interfacial effect phenomenon in this in batches.Interfacial effect refers to the interaction on charge level of the different furnace charges, mainly has mixing (i.e. infiltration) and deformation (rolling) two aspects, the shape of charge level of cloth is had impact.It brings to blast furnace operating and has the drawback that: first it destroys the layer structure of furnace charge, makes cloth complicated operation；Secondly as interpenetrating on ore deposit, burnt interaction interface is inevitable, permeability of stock column can be had a negative impact by this, namely mixes the part poor air permeability of thickness in interfacial effect.In a word, interfacial effect has the drawback that and makes ore deposit Jiao's shape of charge level change, additionally close being with the naked eye not easy of color of the institute such as sintering deposit and coke cloth bulk material is distinguished, and when deforming, there is segregation and rolling, give measurement interface shape with studying interfacial effect and being adjusted to rational shape of charge level and add difficulty.The cloth interfacial effect of blast furnace material distribution model is divided into mixing and two kinds of situations of deformation, adopts two kinds of method measurements.
Blast furnace material distribution model test proprietary term is explained:
Ring position refers to and by area, furnace throat is divided into 11 deciles, and each homalographic annulus correspondence is without an angular range of clock distributor chute.
The biased difference of ring refers to some ring position that the angle of cloth material is corresponding, if there is not interfacial effect phenomenon, the material of this angle cloth should drop on this ring position, here it is the biased difference of ring.
Furnace charge rolls: because the shape of charge level in stove is curve shape, after furnace charge is distributed into blast furnace throat by ring position corresponding angle, and furnace charge to produce to roll phenomenon on 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 gas flow distribution have action effect.Scientific research is generally referred to the curve shape of furnace throat section, namely furnace throat section is cut by imagination by a certain diametric(al), what the curve shape of furnace throat surface material distribution, blast furnace operating personnel wanted to obtain is the material pattern curve along furnace throat section of institute's cloth, to certain ring position Gas Flow development fully, namely gas speed is fast, show as gas temperature height, CO2% is relatively low, cloth doses will be increased and without wishing to institute's biased difference of cloth initial ring in this ring position, the shape of charge level gradient is little, rolling amount is little, so can reach to adjust the effect of gas flow distribution.
Summary of the invention
It is an object of the present invention to provide the deformation condition measuring method of a kind of blast furnace material distribution model bulk material interfacial effect, the interfacial effect deformation condition of bulk material is measured by bf model, the sintering ore bed that offers a clear explanation penetrates into the thickness of coke layer, measure sintering deposit or coke and roll quantity by furnace charge after ring position cloth to furnace throat, solve the problems referred to above existed in background technology.
The technical scheme is that:
The present invention adopts patterning method to measure the deformation method patterning method of the interfacial effect of bulk material in blast furnace material distribution model and surveys interfacial effect deformation method.
The deformation condition measuring method of a kind of blast furnace material distribution model bulk material interfacial effect, comprises following operating procedure:
1., before cloth, dye tracers different for two kinds of colors is sprayed at sintering deposit and coke surface respectively, catches different colours for it；
2. during cloth, first special-purpose cutter is lain in blast furnace material distribution model, make edge and stock line level on it, described special-purpose cutter includes main body frame, cell and cutter, main body frame is rectangular-shaped, cuboid above uncovered, open-mouth is surrounded rectangle frame by rigid material, cuboid surrounding side and bottom surface are closed by soft fabric, by multiple cells that interlayer vertical segmentation is arranged in parallel in the rectangle chamber of main body frame, the ring spacing that the spacing of cell calculates with ring position is consistent；The bottom of each cell is provided with slide fastener, and the material of interlayer is identical with the material of main body frame surrounding side and bottom surface, and the top of interlayer is provided with cutter；
3. after cloth terminates, special-purpose cutter is mentioned by external force, and at this moment furnace charge is cut into a few part by special-purpose cutter just in the vertical direction, and every part furnace charge falls in the cell below sickle respectively, continues to lift up sickle until leaving model；Now, the furnace charge in each cell is the furnace charge at radially this region institute cloth；
4. the furnace charge in each cell is taken out, according to color difference, sintering deposit and coke are separated, weigh respectively；The weight this claimed respectively and ring position corresponding angle should be analyzed by institute's cloth charging weight in this region when bulk material does not deform in theory, draw the deformation that interfacial effect causes.
Described two different colors of dye tracer respectively dye tracer LZH1 and dye tracer LZH2, white is sprayed paint with solvent or diluent according to mass percent 30-40% white paint by dye tracer LZH1,60-70% solvent or diluent, first the two total ratio 100% mixes, it is subsequently adding the clay of gross mass 5% after mixing and the Pulvis Talci of 5%, eventually forms canescence solution；Black is sprayed paint pitch-dark according to 30-40% with solvent or diluent by dye tracer LZH2, and 60-70% solvent or diluent, first the two total ratio 100% mixes, and is subsequently adding the clay of gross mass 5% after mixing and the Pulvis Talci of 5%, eventually forms dark solution.
Dye tracer LZH1 of the present invention and dye tracer LZH2, although they colors are different, but has the property that 1. lightweight, easily spray, 2. cost is low, and 3. bright-colored short-term not easily drops, and is 4. sprayed at sintering deposit and coke surface does not change shape.
Described special-purpose cutter coupling has lowering or hoisting gear, and lowering or hoisting gear is connected with the rigid border of main body frame open-mouth；Described lowering or hoisting gear includes rope, fixed pulley, reductor and motor, and one end of rope is fixed in the rigid border of main body frame open-mouth, and the other end connects reductor and motor by fixed pulley；After cloth terminates, mentioning the rope at four angles of special-purpose cutter with pulley, at this moment furnace charge is cut into a few part by special-purpose cutter just in the vertical direction, and every part furnace charge falls in the cell below sickle respectively, continues to lift up sickle until leaving model；Now, the furnace charge in each cell is the furnace charge at radially this region institute cloth.
Advantages of the present invention and effect: this method application is wide, simple to operate, measure accurately, convenient directly perceived, both test material and test furnace charge had been saved, reduce again experiment work amount, it is possible to resolve the regularity of distribution of bulk material section configuration targetedly, be the inventive method that in research lab model, cloth regular is very useful.
Accompanying drawing explanation
Accompanying drawing 1 is the special-purpose cutter structural representation that the embodiment of the present invention measures the troubled water of the cloth interfacial effect of blast furnace material distribution model；
In figure: 5-cutter, 6-rope, 7-fixed pulley, 8-reductor, 9-motor, 10-main body frame, 11-cell, 12-interlayer.
Detailed description of the invention
By the following examples, the present invention will be further described.
Embodiment is the deformation aspect of blast furnace material distribution model inner boundary effect.
In cloth process, owing to upper strata furnace charge is to the shock of lower floor's furnace charge, push effect, charge level generation irregular deformation.Main manifestations is: the event of caving in even occur in the segregation of bulk material, rolling.Roll in the horizontal direction mainly due to furnace charge to cause by studying the deformation finding interfacial effect, deform and occur mainly in the acclive place of shape of charge level.
Charge level section configuration essence is the change curve of a batch of material be distributed in stove tailing edge blast furnace radially section.Mostly adopt polycyclic distributing during cloth, generally furnace throat shape of charge level be divided into three parts: namely edge endless belt, middle endless belt, in anxious heap.Edge endless belt and edge platform, middle endless belt and middle hopper, in the amount of coke of anxious heap and blast furnace central area.
Complex situations for deformation aspect, if the simple interfacial effect studying two kinds of bulk material according to seen shape of charge level directly perceived is clearly impracticable, the deformation method patterning method having invented the interfacial effect of bulk material in patterning method rating model for this problem surveys interfacial effect deformation method.
The deformation condition measuring method of a kind of blast furnace material distribution model bulk material interfacial effect, measures the deformation condition of the cloth interfacial effect of blast furnace material distribution model, comprises following operating procedure:
1. dye tracer LZH1 and dye tracer LZH2 is ready to；White is sprayed paint to mix according to 1:3 mass percent with solvent or diluent by dye tracer LZH1, is subsequently adding the clay of gross mass 5% after mixing and the Pulvis Talci of 5%, eventually forms canescence solution；Black is sprayed paint to mix according to 1:3 mass percent with solvent or diluent by dye tracer LZH2, does the clay of quality 5% and the Pulvis Talci of 5%, eventually form dark solution after being subsequently adding mixing；
2., before cloth, dye tracer LZH1 and dye tracer LZH2 is sprayed at sintering deposit and coke surface respectively, catches different colours for it；
3. during cloth, first special-purpose cutter is lain in blast furnace material distribution model, make edge and stock line level on it, described special-purpose cutter includes main body frame, cell, cutter and lowering or hoisting gear, main body frame is rectangular-shaped, cuboid above uncovered, open-mouth is surrounded rectangle frame by rigid material, cuboid surrounding side and bottom surface are closed by soft fabric, by multiple cells that interlayer vertical segmentation is arranged in parallel in the rectangle chamber of main body frame, the ring spacing that the spacing of cell calculates with ring position is consistent；The bottom of each cell is provided with slide fastener, and the material of interlayer is identical with the material of main body frame surrounding side and bottom surface, and the top of interlayer is provided with cutter, and lowering or hoisting gear is connected with the rigid border of main body frame open-mouth；Described lowering or hoisting gear includes rope, fixed pulley, reductor and motor, and one end of rope is fixed in the rigid border of main body frame open-mouth, and the other end connects reductor and motor by fixed pulley；
4. after cloth terminates, mentioning the rope at four angles of special-purpose cutter with pulley, at this moment furnace charge is cut into a few part by special-purpose cutter just in the vertical direction, and every part furnace charge falls in the cell below sickle respectively, continues to lift up sickle until leaving model；Now, the furnace charge in each cell is the furnace charge at radially this region institute cloth；
5. the furnace charge in each cell is taken out, according to color difference, sintering deposit and coke are separated, weigh respectively；The weight this claimed respectively and ring position corresponding angle should be analyzed by institute's cloth charging weight in this region when bulk material does not deform in theory, draw the deformation that interfacial effect causes.
Claims (3)
1. a deformation condition measuring method for blast furnace material distribution model bulk material interfacial effect, measures the deformation condition of the cloth interfacial effect of blast furnace material distribution model, it is characterised in that comprise following operating procedure:
1., before cloth, dye tracers different for two kinds of colors is sprayed at sintering deposit and coke surface respectively, catches different colours for it；
2. during cloth, first special-purpose cutter is lain in blast furnace material distribution model, make edge and stock line level on it, described special-purpose cutter includes main body frame, cell and cutter, main body frame is rectangular-shaped, cuboid above uncovered, open-mouth is surrounded rectangle frame by rigid material, cuboid surrounding side and bottom surface are closed by soft fabric, by multiple cells that interlayer vertical segmentation is arranged in parallel in the rectangle chamber of main body frame, the ring spacing that the spacing of cell calculates with ring position is consistent；The bottom of each cell is provided with slide fastener, and the material of interlayer is identical with the material of main body frame surrounding side and bottom surface, and the top of interlayer is provided with cutter；
3. after cloth terminates, special-purpose cutter is mentioned by external force, and at this moment furnace charge is cut into a few part by special-purpose cutter just in the vertical direction, and every part furnace charge falls in the cell below sickle respectively, continues to lift up sickle until leaving model；Now, the furnace charge in each cell is the furnace charge at radially this region institute cloth；
4. the furnace charge in each cell is taken out, according to color difference, sintering deposit and coke are separated, weigh respectively；The weight this claimed respectively and ring position corresponding angle should be analyzed by institute's cloth charging weight in this region when bulk material does not deform in theory, draw the deformation that interfacial effect causes.
2. the deformation condition measuring method of a kind of blast furnace material distribution model bulk material interfacial effect according to claim 1, it is characterized in that described two different colors of dye tracer respectively dye tracer LZH1 and dye tracer LZH2, white is sprayed paint with solvent or diluent according to mass percent 30-40% white paint by dye tracer LZH1,60-70% solvent or diluent, first the two total ratio 100% mixes, it is subsequently adding the clay of gross mass 5% after mixing and the Pulvis Talci of 5%, eventually forms canescence solution；Black is sprayed paint pitch-dark according to 30-40% with solvent or diluent by dye tracer LZH2, and 60-70% solvent or diluent, first the two total ratio 100% mixes, and is subsequently adding the clay of gross mass 5% after mixing and the Pulvis Talci of 5%, eventually forms dark solution.
3. the deformation condition measuring method of a kind of blast furnace material distribution model bulk material interfacial effect according to claim 1 or claim 2, it is characterised in that described special-purpose cutter coupling has lowering or hoisting gear, and lowering or hoisting gear is connected with the rigid border of main body frame open-mouth；Described lowering or hoisting gear includes rope, fixed pulley, reductor and motor, and one end of rope is fixed in the rigid border of main body frame open-mouth, and the other end connects reductor and motor by fixed pulley；After cloth terminates, mentioning the rope at four angles of special-purpose cutter with pulley, at this moment furnace charge is cut into a few part by special-purpose cutter just in the vertical direction, and every part furnace charge falls in the cell below sickle respectively, continues to lift up sickle until leaving model；Now, the furnace charge in each cell is the furnace charge at radially this region institute cloth.
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| CN104561408B (en) * | 2013-10-23 | 2016-08-17 | 江苏省沙钢钢铁研究院有限公司 | The model experiment method that a kind of blast furnace ore coke when air flow method adjusts |
| 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 material distribution experiment model of blast furnace |
| CN107356453B (en) * | 2017-06-23 | 2020-04-17 | 江苏省沙钢钢铁研究院有限公司 | Sampling device and method for measuring radial particle size distribution of experimental blast furnace |
| 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 |
| CN111024498B (en) * | 2019-12-10 | 2022-04-22 | 三峡大学 | Test device for supporting force of fluid filling lining structure in tunnel surrounding rock intrusion simulation process and use method |
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| CN102629286A (en) * | 2012-02-24 | 2012-08-08 | 北京首钢自动化信息技术有限公司 | Blast furnace burden distribution value simulation method based on intelligent algorithm |
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| JPH0598325A (en) * | 1991-10-07 | 1993-04-20 | Nkk Corp | Device for controlling distribution of charging materials in blast furnace |
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| CN102629286A (en) * | 2012-02-24 | 2012-08-08 | 北京首钢自动化信息技术有限公司 | Blast furnace burden distribution value simulation method based on intelligent algorithm |
Non-Patent Citations (2)
| Title |
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| 高炉布料的焦层坍塌建模方法研究;许永华等;《中国冶金》;20070630;第17卷(第6期);第30-33页 * |
| 高炉比例模型数字图像处理分析布料料层情况;杜鹏宇等;《2008年中小高炉炼铁学术年会论文集》;20081231;第22-25页 * |
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