CN102912083A - Melted iron desulfuration and slag skimming product line system - Google Patents
Melted iron desulfuration and slag skimming product line system Download PDFInfo
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- CN102912083A CN102912083A CN201210424185XA CN201210424185A CN102912083A CN 102912083 A CN102912083 A CN 102912083A CN 201210424185X A CN201210424185X A CN 201210424185XA CN 201210424185 A CN201210424185 A CN 201210424185A CN 102912083 A CN102912083 A CN 102912083A
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- slag
- melted iron
- desulfuration
- skimming
- molten iron
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Abstract
The invention discloses a melted iron desulfuration and slag skimming product line system, which at least comprises a crane, a melted iron transfer line and a desulfuration and slag skimming product line, wherein a plurality of melted iron tank cars are arranged on the melted iron transfer line, and melted iron tanks are arranged on the melted iron tank cars; the desulfuration and slag skimming product line is parallel to the melted iron transfer line, an interval is formed between the desulfuration and slag skimming product line and the melted iron transfer line, two melted iron tipping bogies are arranged on the desulfuration and slag skimming product line at an interval, and an efficient slag skimming machine is arranged near each melted iron tipping bogie in a matched manner; a desulfurizer is arranged between the two melted iron tipping bogies and in the desulfuration and slag skimming product line direction, and the desulfurizer consists of a spray gun device and a desulfurizing agent charging system; and the crane is located above the melted iron transfer line. The melted iron desulfuration and slag skimming product line system also comprises slag pan vehicles and slag pans, wherein the slag pan vehicles are located at the tapping ends of the efficient slag skimming machines. By adopting the melted iron desulfuration and slag skimming production line system, the operation of directly removing skimmings from melted iron can be realized, and the desulfuration duplex function of the melted iron can also be realized, so that the working procedure has stronger flexibility.
Description
Technical field
The present invention relates to the Liquid Iron Pretreatment Technology field, relate in particular to a kind of desulfurizing iron line production system of skimming.
Background technology
Be accompanied by the deep development of society, the user is more and more higher to the requirement of steel product quality, and steel need have high strength, good low-temperature flexibility and cold forming capability and welding property.For reaching this purpose, reduce steel inclusion and reduce particularly that sulphur content is to improve the effective way of steel over-all properties in the steel.
One important procedure that desulfurizing iron is produced as steelshop, advantage mainly contains following aspect:
(1) it is extremely low molten steel sulfur content to be reduced to, and is conducive to high-quality steel grade and smelts;
(2) save steelmaking ingredient consumption, reduce steel-making cost, boost productivity;
(3) improve iron-smelting furnace throughput, alleviate iron-smelting furnace desulfurization burden, be conducive to iron-smelting furnace smooth operation, direct motion.
Desulfurizing iron both can alleviate the metallurgy load of iron-smelting furnace, steel melting furnace, had created primary condition for raising steel quality, exploitation high added value steel grade again, was now extensively adopted by domestic and international steel mill.At present both at home and abroad the main Desulphurization of Pig Iron that exists has: KR method (mechanical mixing method), singly blow granular magnesium method, composite blowing method.
The conventional layout method of desulfurizing iron facility: newly-built independent desulfurization is striden, and desulfurizing iron facility processing unit is arranged in this strides, and molten iron, desulfurization slag then adopt respectively tumble chassis and slag pan vehicle of molten iron to cross and stride operation.Although this arrangement form efficiently solves the logistical problem of molten iron and desulfurization slag, the disposable investment cost is higher, and simultaneously, this sulfur removal technology is single station operation, does not possess certain handiness.In addition, for existing steelshop, do not do at power house under the precondition of variation and set up the desulfurizing iron facility, the conventional layout often is difficult to realize.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of desulfurizing iron line production system of skimming, realized desulfurizing iron double function, can realize that again molten iron directly removes the scum silica frost operation, so that this procedure has stronger handiness.
For achieving the above object, a kind of desulfurizing iron of the present invention line production system of skimming comprises crane, molten iron transfer limes at least, and the desulphurization and slag skimming production line, wherein;
Described molten iron transfer limes is provided with several hot-metal ladle and carriages, and described hot-metal ladle and carriage is provided with iron ladle;
Described desulphurization and slag skimming production line is parallel with described molten iron transfer limes, is provided with two molten iron chassis of tumbling at the desulphurization and slag skimming production line, and each molten iron is tumbled near the chassis and all supportingly to be provided with efficient slag removal machine; Tumbling between the chassis and be in desulphurization and slag skimming production line direction at two molten iron is provided with desulfurizer, and described desulfurizer is made of spray gun device and sweetening agent charging system;
Described crane is positioned at the top of described molten iron transfer limes;
Also comprise slag pan vehicle and slag pan, described slag pan vehicle is positioned at the slag output end of described efficient slag removal machine.
Beneficial effect of the present invention is:
1, the sweetener processing set-up is compact, reduce facility investment, technical process is reasonable;
2, reduced the one-time investment of desulfurization workshop steel structure and corresponding utility appliance, higher economic benefit has been arranged;
3, can realize that molten iron directly removes the scum silica frost operation, can realize again desulfurizing iron double function, so that this procedure has stronger handiness.
Description of drawings
Fig. 1 is the skim structure vertical view of line production system of the described desulfurizing iron of the embodiment of the invention;
Fig. 2 is the skim structure side view of line production system of the described desulfurizing iron of the embodiment of the invention.
Embodiment
The present invention will be further described below in conjunction with Figure of description.
Such as Fig. 1-shown in Figure 2, the described a kind of desulfurizing iron of the embodiment of the invention line production system of skimming comprises crane 9, molten iron transfer limes at least, and the desulphurization and slag skimming production line, wherein;
Described molten iron transfer limes is provided with several hot-metal ladle and carriages 8, and described hot-metal ladle and carriage 8 is provided with iron ladle 5;
Described desulphurization and slag skimming production line is parallel with described molten iron transfer limes and spacing is arranged, and spacing is provided with two molten iron chassis 4 of tumbling on the desulphurization and slag skimming production line, and each molten iron is tumbled near the chassis and all supportingly to be provided with efficient slag removal machine 3; Tumbling between the chassis and be in desulphurization and slag skimming production line direction at two molten iron is provided with desulfurizer, and described desulfurizer is made of spray gun device 6 and sweetening agent charging system 7;
Described crane is positioned at the top of described molten iron transfer limes;
Also comprise slag pan vehicle 1 and slag pan 2, described slag pan vehicle is positioned at the slag output end of desulphurization and slag skimming production line.
Principle of work of the present invention is:
The molten iron slag is low basicity slag (basicity～1.0), when silicon in the molten iron, when sulphur content is higher, bring the burdens such as desiliconization, desulfurization to steel melting furnace.Steelshop often needs according to the different needs of smelting steel grade, carries out the different pretreatment technology of molten iron.
(1) smelts general steel grade (such as Q215A, Q235A etc.)
When smelting general steel grade, only need carry out the molten iron surface scum removes operation, effectively eliminates the low basicity of scum, silicon, the higher negative impact that smelting brings to steel melting furnace of sulphur content, reduces the steel melting furnace supplementary product onsumption, shortens smelting cycle.
Casting crane is tumbled iron ladle handling to molten iron on the molten iron line on the chassis, the hydraulic pressure tipping molten iron ladle is to required angle, adopt efficient slag removal machine that the molten iron surface scum is removed operation, scum silica frost is taken off and is dropped down onto on the slag pan vehicle in the slag pan, skim after the end, slag pan vehicle is transported to independent slag with slag pan and steps into capable focusing on.
(2) smelt high gauge steel grade (such as Q345A, 72A, 82B, X60, X70 etc.)
The high standard steel grade has higher requirement to sulphur content in the steel, and therefore molten iron is carried out the desulfurization pretreatment technology seems particularly important.
Casting crane is tumbled iron ladle handling to molten iron on the molten iron line on the chassis, the molten iron chassis of tumbling moves to the desulfurization station, splash guard descends, spray gun descends on the spray gun device, after arriving certain immersion depth in the molten iron, the sweetening agent feeding device is jetted sweetening agent to the high temperature molten iron by spray gun device.After desulfuration operations finishes, after splash guard rises, molten iron is carried out the thermometric sampling, after molten iron temperature and composition are qualified, the molten iron chassis of tumbling is left, the hydraulic pressure tipping molten iron ladle adopts efficient slag removal machine that the molten iron surface scum is removed operation to required angle, and scum silica frost is taken off and dropped down onto on the slag pan vehicle in the slag pan, skim after the end, slag pan vehicle is transported to independent slag with slag pan and steps into capable focusing on.
This invention can be satisfied different desulfurizing iron pretreatment technology, for newly-built steelshop and built steelshop, all need not build desulfurization and stride factory building, effectively reduces the workshop disposable investment.Simultaneously, this invention can realize desulfurizing iron double function, can realize that again molten iron directly removes the scum silica frost operation, so that this procedure has stronger handiness, for many steel mills upgrading at present provides good thinking.
More than; be preferred embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (1)
1. desulfurizing iron line production system of skimming is characterized in that, comprises at least crane, molten iron transfer limes, and the desulphurization and slag skimming production line, wherein;
Described molten iron transfer limes is provided with several hot-metal ladle and carriages, and described hot-metal ladle and carriage is provided with iron ladle;
Described desulphurization and slag skimming production line is parallel with described molten iron transfer limes and spacing is arranged, and spacing is provided with two molten iron chassis of tumbling on the desulphurization and slag skimming production line, and each molten iron is tumbled near the chassis and all supportingly to be provided with efficient slag removal machine; Tumbling between the chassis and be in desulphurization and slag skimming production line direction at two molten iron is provided with desulfurizer, and described desulfurizer is made of spray gun device and sweetening agent charging system;
Described crane is positioned at the top of described molten iron transfer limes;
Also comprise slag pan vehicle and slag pan, described slag pan vehicle is positioned at the slag output end of described efficient slag removal machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210424185XA CN102912083A (en) | 2012-10-30 | 2012-10-30 | Melted iron desulfuration and slag skimming product line system |
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| CN201210424185XA CN102912083A (en) | 2012-10-30 | 2012-10-30 | Melted iron desulfuration and slag skimming product line system |
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| CN102912083A true CN102912083A (en) | 2013-02-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924039A (en) * | 2014-04-30 | 2014-07-16 | 江苏大峘集团有限公司 | Rotary multi-station hot metal pretreatment system and method |
| CN105112600A (en) * | 2015-08-31 | 2015-12-02 | 北京首钢国际工程技术有限公司 | Molten iron concentrated vanadium extraction system and using method thereof |
| CN108588319A (en) * | 2018-05-31 | 2018-09-28 | 中冶南方工程技术有限公司 | A kind of efficiently online KR desulphurization systems |
| CN109482302A (en) * | 2018-11-19 | 2019-03-19 | 吉林建龙钢铁有限责任公司 | A kind of desulfurization slag iron crushing device |
| CN115479800A (en) * | 2022-09-27 | 2022-12-16 | 临沂利信铝业有限公司 | Slagging-off device for processing aluminum smelting furnace |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514379A (en) * | 2009-04-03 | 2009-08-26 | 北京首钢国际工程技术有限公司 | Hot metal ladle car on-line molten iron desulphurization pretreatment system |
| CN201962318U (en) * | 2010-12-17 | 2011-09-07 | 莱芜钢铁股份有限公司 | Single-position desulfurizing and slag removing device |
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2012
- 2012-10-30 CN CN201210424185XA patent/CN102912083A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514379A (en) * | 2009-04-03 | 2009-08-26 | 北京首钢国际工程技术有限公司 | Hot metal ladle car on-line molten iron desulphurization pretreatment system |
| CN201962318U (en) * | 2010-12-17 | 2011-09-07 | 莱芜钢铁股份有限公司 | Single-position desulfurizing and slag removing device |
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| Title |
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| 盛富春等: "铁水在线脱硫捞渣工艺的研究与应用", 《第十五届全国炼钢学术会议文集》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924039A (en) * | 2014-04-30 | 2014-07-16 | 江苏大峘集团有限公司 | Rotary multi-station hot metal pretreatment system and method |
| CN105112600A (en) * | 2015-08-31 | 2015-12-02 | 北京首钢国际工程技术有限公司 | Molten iron concentrated vanadium extraction system and using method thereof |
| CN108588319A (en) * | 2018-05-31 | 2018-09-28 | 中冶南方工程技术有限公司 | A kind of efficiently online KR desulphurization systems |
| CN109482302A (en) * | 2018-11-19 | 2019-03-19 | 吉林建龙钢铁有限责任公司 | A kind of desulfurization slag iron crushing device |
| CN115479800A (en) * | 2022-09-27 | 2022-12-16 | 临沂利信铝业有限公司 | Slagging-off device for processing aluminum smelting furnace |
| CN115479800B (en) * | 2022-09-27 | 2023-06-16 | 临沂利信铝业有限公司 | Slag skimming device for aluminum smelting furnace processing |
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Application publication date: 20130206 |