CN205517664U - Simulation BOF steelmaking chemical reaction gaseous product and molten bath interact's device - Google Patents
Simulation BOF steelmaking chemical reaction gaseous product and molten bath interact's device Download PDFInfo
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- CN205517664U CN205517664U CN201620275943.XU CN201620275943U CN205517664U CN 205517664 U CN205517664 U CN 205517664U CN 201620275943 U CN201620275943 U CN 201620275943U CN 205517664 U CN205517664 U CN 205517664U
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Abstract
The utility model relates to a simulation BOF steelmaking chemical reaction gaseous product and molten bath interact's device belongs to ferrous metallurgy experimental facilities field. Including organic glass converter model, top blow oxygen lance analogue means, gaseous simulation pipe, converter support, bottom blowing air feed nozzle, pipe, oxygen rifle altitude mixture control valve and oxygen gun carriage, gaseous simulation pipe glues in the inside not co -altitude of converter model furnace wall, top blow oxygen lance analogue means is by oxygen rifle altitude mixture control valve regulation to design height to support by the oxygen gun carriage and suspend inside organic glass converter model, organic glass converter model is supported by the converter support. The utility model discloses can realize BOF steelmaking chemical reaction gaseous product and molten bath interact's experimental simulation research, discuss high temperature, heterogeneous, multicomponent, complicated different technological parameter of BOF steelmaking the smelting process to the influence law of chemical reaction gaseous product with molten bath interact, operate simple relatively, and economical and practical.
Description
Technical field
This utility model belongs to Ferrous Metallurgy field of experiment equipment, relates to a kind of device simulating pneumatic steelmaking chemical reaction gas product and molten bath interaction.
Background technology
Converting process is currently the most topmost STEELMAKING PRODUCTION method.By top blast Supersonic oxygen jet in molten bath, bottom blowing noble gas completes the decarburization of molten iron, rises the tasks such as gentle dephosphorization.Interaction between top blast oxygen jet and molten steel of melting bath greatly affects the generation of the various complicated phenomenon of convertor steelmaking process, and bottom blown gas mainly plays the function of agitation molten pool.And in converter steelmaking process, decarburization can produce substantial amounts of gas in molten bath in period.The flowing of converter molten pool fluid is the result of the interactions such as top blast supersonic jet, bottom blown gas stream stock and chemical reaction bubble stream.
If the Flow Field Distribution of converter molten pool is controlled unreasonable meeting cause converter lining life to reach 5000 furnace rear to blow effect again inconspicuous, metallurgical effect is equal to top-blown converter, and before tapping, Oxygen Content in Liquid Steel is higher, and steel inclusion quantity is on the high side；Converter molten pool process temperature controls inaccurate, and converter refractory lining corrodes serious, and the problems such as smelting endpoint molten steel hit rate is the highest have influence on resource consumption and the product quality of smelting process, and determine production and technical indication in steelmaking process.It is high melt process yet with pneumatic steelmaking and is limited by produced on-site operating condition, be difficult to by field experimentation observation molten bath gaseous product.Chinese scholars has carried out substantial amounts of research work for this, and research work is mainly by physical modeling or the method that combines numerical simulation.But in research process, often have ignored molten bath chemical reaction gas product molten bath transport behavior is affected.
This device is to investigate on basis in early-stage Study and pertinent literature, proposes a kind of device simulating pneumatic steelmaking chemical reaction gas product and molten bath interaction by analysis and research.
Utility model content
This utility model, mainly for being difficult under the conditions of converter smelting observe, by field experimentation, the problem that molten bath fluid flowing law is affected by chemical reaction gas product, designs a kind of device simulating pneumatic steelmaking chemical reaction gas product and molten bath interaction.
To achieve these goals, the technical solution of the utility model is design one simulation pneumatic steelmaking chemical reaction gas product and molten bath interaction means, including lucite model converter, top blow oxygen lance analog, gas simulation pipe, conduit, converter bearing, bottom blowing gas nozzle, oxygen rifle height adjusting valve and oxygen gun carriage.Wherein, the type of furnace of lucite model converter is that hollow cone is spherical, has bottom blowing gas hole bottom it；Top blow oxygen lance analog is made up of central oxygen pipe and Raoul oxygen gun sprayer；Bottom blowing nozzle is the circular seam type nozzle that lucite is processed into.Described gas simulation pipe sticks at model converter bath differing heights, described top blow oxygen lance analog is adjusted to design height by oxygen rifle height adjusting valve, and by oxygen gun carriage support suspension inside lucite model converter, described lucite model converter is by converter seat supports.
Described lucite model converter, top blow oxygen lance analog, bottom blowing gas nozzle etc. are all to process by the prototype scaled down in actual production according to the principle of similitude.
Described gas simulation pipe is 25mm for external diameter, and outer wall is covered with the pipe that the lucite of disperse aperture processes.
The center managing the position that is connected with model converter furnace wall in the simulation of described gas has the circular hole matched with conduit diameter.
The chemical reaction gas that described gas simulation pipe is simulated is blown into through conduit by compressed air reservoir.
Described oxygen rifle height adjusting valve center-hole diameter is adjustable, and oxygen rifle central oxygen pipe moves up and down regulation height in regulation valve centre bore, and is fixed by oxygen rifle by adjusting height adjusting valve center-hole diameter.
Air is pressed into air accumulator by air compressor by the gas required for described top blow oxygen lance analog and bottom blowing gas nozzle, is stably supplied by air accumulator in experimentation again.
This utility model is achieved in that and utility model is assembled complete and oxygen lance position etc. is adjusted to required condition, a certain amount of liquid is added in lucite model converter, then air supply system is opened, the high-speed gas, bottom blown gas and the chemical reaction gas product that eject in top blow oxygen lance act on the liquid in lucite model converter jointly, thus achieve the experimentation of pneumatic steelmaking chemical reaction gas product and molten bath interaction simulation.
Advantage of the present utility model and having the beneficial effects that: the course of reaction that converter steelmaking process is high temperature, heterogeneous, multicomponent is complicated, direct experiment has significant limitation in process of production, this utility model sets up the model similar to object of study according to the principle of similitude, Cold modelling experiment is carried out at laboratory, optimal Operating parameters is drawn by experiment, again acquired results is promoted the use of in actual production, operate relatively easy, and economical and practical.
Accompanying drawing explanation
Fig. 1 is simulation pneumatic steelmaking chemical reaction gas product and molten bath interaction experimental provision schematic diagram, in figure: 1-lucite model converter, 2-top blow oxygen lance analog, 3-gas simulation pipe, 4-converter bearing, 5-bottom blowing gas nozzle, 6-conduit, 7-oxygen rifle height adjusting valve, 8-oxygen gun carriage；
Fig. 2 is that gas simulates pipe schematic diagram.
Detailed description of the invention
A kind of experimental provision simulating pneumatic steelmaking chemical reaction gas product and molten bath interaction, including lucite model converter 1, top blow oxygen lance analog 2, gas simulation pipe 3, converter bearing 4, bottom blowing gas nozzle 5, conduit 6, oxygen rifle height adjusting valve 7 and oxygen gun carriage 8.Wherein, its type of furnace of lucite model converter 1 is that hollow cone is spherical, has bottom blowing gas hole bottom it；Top blow oxygen lance analog 2 is made up of central oxygen pipe and Raoul oxygen gun sprayer；The hollow circular-tube that gas simulation pipe 3 is processed into for lucite；The circular seam type nozzle that bottom blowing gas nozzle 5 is processed into for lucite.The technical scheme that this utility model is embodied as is as follows:
1) utility model device is assembled.Gas is simulated pipe and sticks at the internal differing heights of model converter furnace lining, conduit connection sticks at the gas simulation pipe inside furnace wall and gas charging-tank, top blow oxygen lance analog is by oxygen gun carriage support suspension inside lucite model converter, and lucite model converter is by converter seat supports.
2) according to experimental program, regulation experiment device.Liquid is added in lucite converter；Fix and by oxygen gun carriage support suspension in lucite model converter after oxygen rifle being adjusted to design height by oxygen rifle height adjusting valve；Bottom blowing gas arrangement of nozzles mode and bottom blowing gas number of nozzle is changed according to design.
3) air supply system is blown in unlatching again.First by air compressor, air is pressed into air accumulator, experimentation is stably supplied by air accumulator top blast and bottom blowing desired gas, according to design, top blow oxygen lance gas and bottom blown gas is adjusted to design discharge.
4), after converter molten pool liquid reaches steady statue, gas simulation pipe starts supply.Gas simulation pipe supply tolerance can determine according to Thermodynamic Simulation database data the calculated results.Gas enters molten bath diverse location through simulation pipe, thus achieves the experimentation of pneumatic steelmaking gaseous product and molten bath interaction simulation.
The foregoing is only preferred embodiments of the present utility model; it should be pointed out that, for those skilled in the art, on the premise of without departing from this utility model know-why; can also make some improvements and modifications, these improvements and modifications should be regarded as protection domain of the present utility model.
Claims (1)
1. pulp water mechanical simulation experimental provision is spattered in a converter, it is characterised in that include lucite model converter (1), top blow oxygen lance analog (2), gas simulation pipe (3), converter bearing (4), bottom blowing gas nozzle (5), conduit (6), oxygen rifle height adjusting valve (7)；Oxygen gun carriage (8)；Wherein, the type of furnace of lucite model converter (1) is that hollow cone is spherical, has bottom blowing gas hole bottom it；Top blow oxygen lance analog (2) is made up of central oxygen pipe and Raoul oxygen gun sprayer；Bottom blowing gas nozzle (5) is the circular seam type nozzle that lucite is processed into；Gas simulation pipe (3) be external diameter be 25 mm, outer wall is covered with the pipe that the lucite of disperse aperture processes；Gas simulation pipe (3) sticks at the internal differing heights of model converter (1) furnace lining, conduit (6) is connected sticking at gas simulation pipe (3) inside furnace wall with air supply system, top blow oxygen lance analog (2) is adjusted to design height by oxygen rifle height adjusting valve (7), and by oxygen gun carriage (8) support suspension inside lucite model converter, lucite model converter (1) is supported by converter bearing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620275943.XU CN205517664U (en) | 2016-04-05 | 2016-04-05 | Simulation BOF steelmaking chemical reaction gaseous product and molten bath interact's device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620275943.XU CN205517664U (en) | 2016-04-05 | 2016-04-05 | Simulation BOF steelmaking chemical reaction gaseous product and molten bath interact's device |
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| CN205517664U true CN205517664U (en) | 2016-08-31 |
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| CN201620275943.XU Active CN205517664U (en) | 2016-04-05 | 2016-04-05 | Simulation BOF steelmaking chemical reaction gaseous product and molten bath interact's device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107475479A (en) * | 2017-08-01 | 2017-12-15 | 钢铁研究总院 | A kind of converter molten pool dynamics simulation device and method |
| CN107941999A (en) * | 2017-11-15 | 2018-04-20 | 钢铁研究总院 | A kind of Cold simulating test method for simulating reaction generation gas in high temperature molten bath |
| CN111826495A (en) * | 2020-07-28 | 2020-10-27 | 邯郸钢铁集团有限责任公司 | Assembled oxygen lance nozzle for hydraulic simulation of converter |
-
2016
- 2016-04-05 CN CN201620275943.XU patent/CN205517664U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107475479A (en) * | 2017-08-01 | 2017-12-15 | 钢铁研究总院 | A kind of converter molten pool dynamics simulation device and method |
| CN107941999A (en) * | 2017-11-15 | 2018-04-20 | 钢铁研究总院 | A kind of Cold simulating test method for simulating reaction generation gas in high temperature molten bath |
| CN111826495A (en) * | 2020-07-28 | 2020-10-27 | 邯郸钢铁集团有限责任公司 | Assembled oxygen lance nozzle for hydraulic simulation of converter |
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