CN102069182A - Process and special device for melting iron slag of vanadium-bearing titanomagnetite in torpedo tank - Google Patents
Process and special device for melting iron slag of vanadium-bearing titanomagnetite in torpedo tank Download PDFInfo
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- CN102069182A CN102069182A CN2011100000135A CN201110000013A CN102069182A CN 102069182 A CN102069182 A CN 102069182A CN 2011100000135 A CN2011100000135 A CN 2011100000135A CN 201110000013 A CN201110000013 A CN 201110000013A CN 102069182 A CN102069182 A CN 102069182A
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Abstract
The invention relates to a process and specific device for melting iron slag of vanadium-bearing titanomagnetite in a torpedo tank, belonging to the technical filed of metallurgical heat engineering. The process comprises the following steps: placing a lid on the torpedo tank subjected to molten iron discharging; inserting two oxygen burning guns into the torpedo tank in a slant and staggered mode from the lid of the torpedo tank; supplying coal gas and oxygen to the two oxygen burning guns; burning, wherein, the whole torpedo tank is covered by the flame, and high-temperature flue gas flows along two sides of the torpedo tank and flows upwards and is discharged out of the torpedo tank through the upper part of the lid; stopping supplying the coal gas and oxygen and withdrawing the oxygen burning guns when the iron slag mixture in the tank is molten; pouring out the molten iron slag mixture; and receiving the molten iron from a blast furnace by the torpedo tank. The high-temperature flue gas is introduced into a chimney by a draft fan and discharged into the atmosphere after being subjected to temperature reduction of a waste heat boiler and dust removal of a dust catcher. By adopting the process and device, the iron slag of vanadium-bearing titanomagnetite adhered on the torpedo tank can be cleaned to recover the original volume of the torpedo tank without being unloaded, after the volume of the torpedo tank is reduced due to the adhered iron slag, thus ensuring normal use and operation of the torpedo tank, and maintaining normal blast furnace production.
Description
Technical field
The present invention relates to a kind of vanadium titano-magnetite torpedo jar slag iron process and special equipment, belong to metallurgical heat power engineering field.
Background technology
Torpedo tank car is as one of important transportation equipment of smelting iron and steel, and its effect mainly is the transportation molten iron.The torpedo tank car design feature is that upper opening is little, and heat dissipation capacity is little, but repairs difficulty of jar.V-ti magnetite slag iron blenny thunder jar is the endemism of smelting vanadium-titanium magnetite by blast furnace, though slag iron also had the bonding situation when common mining and metallurgy was refined in the torpedo jar, but the fusion temperature of its adhesive is lower than tapping temperature, can be melted when tap a blast furnace next time, and jar lining brush more is thin more.Then because of containing high-melting-point compounds such as TiC, TiN, fusing point is very high, is higher than tapping temperature, can not be melted when tapping a blast furnace next time in the sticking jar of thing of vanadium-titanium-iron-water, and knot is thick more more.Cause the torpedo tank volume to reduce rapidly like this, have a strong impact on the normal use and the turnover of torpedo jar, and bring difficulty for the plan that blast furnace normally taps a blast furnace.
Summary of the invention
The object of the invention provides a kind of vanadium titano-magnetite torpedo jar slag iron process and special equipment, and torpedo jar manufactured without inserting winding can clean out sticking jar slag iron and recover original volume, solves the problems referred to above that exist in the background technology.
Technical scheme of the present invention is:
A kind of vanadium titano-magnetite torpedo jar slag iron process, comprise following processing step: the torpedo jar that has just gone out molten iron, cover cover, cover from the torpedo jar, two oxygen lances tilt in the staggered insertion torpedo jar, supply with coal gas and oxygen to oxygen lance, burning, flame cover in whole jar, and high-temperature flue gas flows along both sides in the jar and top, outside the drain tank of cover top, after the fusing of the slag iron coagulum in the jar, stop to supply with coal gas and oxygen, withdraw from oxygen lance, pour out the slag iron mixture of fusing, the torpedo jar continues blast furnace and connects molten iron.
Processing step more specifically: when the torpedo jar that has 1. just gone out molten iron is come slag ironworker position, with jar mouth and cover consistency from top to bottom, cover lowers then, cover on torpedo jar mouth, 2. two coal gas oxygen lances slowly stretch in the torpedo jar mouth, begin to supply with coal gas and oxygen the igniting, treat the oxygen lance flameholding after, insert oxygen lance gradually in the torpedo jar again, insertion depth can be regulated according to torpedo jar dry slag iron position and thin and thick; 3. after the slag iron coagulum in the jar melts gradually, can reduce the straying quatity of coal gas and oxygen, make jar interior certain high temperature that keeps; 4. after the fusing of the slag iron in jar quantity reaches requirement, stop to supply with coal gas and oxygen, withdraw from oxygen lance with the oxygen lance transmission device, cover rises, and pours out the slag iron mixture of fusing, finishes a slag iron cycle, and the torpedo jar continues blast furnace and connects molten iron.
Said oxygen lance inserts depth-adjustment joint in the torpedo jar, and the slag iron mixture after the fusing is poured in the slag bucket of next door.
The high-temperature flue gas that produces in the slag iron process enters the high temperature smoke discharging pipe through cover top, again through the waste heat boiler cooling, producing steam simultaneously generates electricity by way of merging two or more grid systems, flue gas after the cooling after the bag dust collector dedusting, reaches environmental requirement after filtration, introduces chimney through air-introduced machine again and enters atmosphere.
A kind of vanadium titano-magnetite torpedo jar slag iron special equipment, comprise torpedo jar, oxygen lance 3, cover, high temperature smoke discharging pipe, waste heat boiler, low temperature smoke discharging pipe, bag dust collector, air-introduced machine, chimney, the cover coupling is on the torpedo jar, two oxygen lances tilt in the staggered insertion torpedo jar, the high temperature smoke discharging pipe that is arranged on the cover connects waste heat boiler, and waste heat boiler connects bag dust collector, air-introduced machine, chimney by the low temperature smoke discharging pipe.
Be provided with the oxygen lance slideway on torpedo jar side, oxygen lance can slide in the above, regulates the degree of depth of inserting in the torpedo jar.
Beneficial effect of the present invention: adopt the present invention, after v-ti magnetite slag iron blenny thunder jar causes volume to dwindle, torpedo jar manufactured without inserting winding can clean out sticking jar of slag iron and recover original volume, ensures the normal use and the turnover of torpedo jar, safeguards that blast furnace production normally carries out.
Description of drawings
Fig. 1 is an embodiment of the invention apparatus arrangement schematic diagram;
Among the figure: torpedo jar 1, oxygen lance slideway 2, oxygen lance 3, cover 4, high temperature smoke discharging pipe 5, waste heat boiler 6, low temperature smoke discharging pipe 7, bag dust collector 8, air-introduced machine 9, chimney 10.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described by embodiment.
A kind of vanadium titano-magnetite torpedo jar slag iron process, when the torpedo jar 1 that has 1. just gone out molten iron is come slag ironworker position, with jar mouth and cover consistency from top to bottom, cover 4 lowers then, covers on torpedo jar mouth, and 2. two coal gas oxygen lances 3 slowly stretch in the torpedo jar mouth, begin to supply with the igniting of coal gas and oxygen, after treating the oxygen lance flameholding, insert oxygen lance gradually in the torpedo jar again, insertion depth can be regulated according to torpedo jar dry slag iron position and thin and thick; 3. after the slag iron coagulum in the jar melts gradually, can reduce the straying quatity of coal gas and oxygen, make jar interior certain high temperature that keeps; 4. after the fusing of the slag iron in jar quantity reaches requirement, stop to supply with coal gas and oxygen, withdraw from oxygen lance with the oxygen lance transmission device, cover rises, and pours out the slag iron mixture of fusing, finishes a slag iron cycle, and the torpedo jar continues blast furnace and connects molten iron.Said oxygen lance inserts depth-adjustment joint in the torpedo jar, and the slag iron mixture after the fusing is poured in the slag bucket of next door.
The high-temperature flue gas that produces in the slag iron process enters high temperature smoke discharging pipe 5 through cover top, again through waste heat boiler 6 coolings, producing steam simultaneously generates electricity by way of merging two or more grid systems, flue gas after the cooling after bag dust collector 8 dedustings, reaches environmental requirement after filtration, introduces chimneys 10 through air-introduced machine 9 again and enters atmosphere.
A kind of vanadium titano-magnetite torpedo jar slag iron special equipment, comprise torpedo jar 1, oxygen lance 3, cover 4, high temperature smoke discharging pipe 5, waste heat boiler 6, low temperature smoke discharging pipe 7, bag dust collector 8, air-introduced machine 9, chimney 10, the cover coupling is on the torpedo jar, two oxygen lances tilt in the staggered insertion torpedo jar, the high temperature smoke discharging pipe that is arranged on the cover connects waste heat boiler, and waste heat boiler connects bag dust collector, air-introduced machine, chimney by the low temperature smoke discharging pipe.Be provided with oxygen lance slideway 2 on torpedo jar 1 side, oxygen lance 3 can slide in the above, regulates the degree of depth of inserting in the torpedo jar.
Claims (6)
1. vanadium titano-magnetite torpedo jar slag iron process, it is characterized in that comprising following processing step: the torpedo jar that has just gone out molten iron, cover cover, cover from the torpedo jar, two oxygen lances tilt in the staggered insertion torpedo jar, supply with coal gas and oxygen to oxygen lance, burning, flame cover in whole jar, and high-temperature flue gas flows along both sides in the jar and top, outside the drain tank of cover top, after the fusing of the slag iron coagulum in the jar, stop to supply with coal gas and oxygen, withdraw from oxygen lance, pour out the slag iron mixture of fusing, the torpedo jar continues blast furnace and connects molten iron.
2. the vanadium titano-magnetite torpedo jar slag iron process according to claim 1 is characterized in that more specifically step is as follows:
When the torpedo jar (1) that has 1. just gone out molten iron is come slag ironworker position, with jar mouth and cover consistency from top to bottom, cover (4) lowers then, cover on torpedo jar mouth, 2. two coal gas oxygen lances (3) slowly stretch in the torpedo jar mouth, begin to supply with coal gas and oxygen the igniting, treat the oxygen lance flameholding after, insert oxygen lance gradually in the torpedo jar again, insertion depth can be regulated according to torpedo jar dry slag iron position and thin and thick; 3. after the slag iron coagulum in the jar melts gradually, can reduce the straying quatity of coal gas and oxygen, make jar interior certain high temperature that keeps; 4. after the fusing of the slag iron in jar quantity reaches requirement, stop to supply with coal gas and oxygen, withdraw from oxygen lance with the oxygen lance transmission device, cover rises, and pours out the slag iron mixture of fusing, finishes a slag iron cycle, and the torpedo jar continues blast furnace and connects molten iron.
3. according to claim 1 or 2 described vanadium titano-magnetite torpedo jar slag iron process, it is characterized in that the high-temperature flue gas that produces in the slag iron process, enter high temperature smoke discharging pipe (5) through cover top, pass through waste heat boiler (6) cooling again, producing steam simultaneously generates electricity by way of merging two or more grid systems, flue gas after the cooling after bag dust collector (8) dedusting, reaches environmental requirement after filtration, introduces chimney (10) through air-introduced machine (9) again and enters atmosphere.
4. the vanadium titano-magnetite torpedo jar slag iron process according to claim 2 is characterized in that said oxygen lance inserts depth-adjustment joint in the torpedo jar, and the slag iron mixture after the fusing is poured in the slag bucket of next door.
5. vanadium titano-magnetite torpedo jar slag iron special equipment, it is characterized in that comprising torpedo jar (1), oxygen lance (3), cover (4), high temperature smoke discharging pipe (5), waste heat boiler (6), low temperature smoke discharging pipe (7), bag dust collector (8), air-introduced machine (9), chimney (10), the cover coupling is on the torpedo jar, two oxygen lances tilt in the staggered insertion torpedo jar, the high temperature smoke discharging pipe that is arranged on the cover connects waste heat boiler, and waste heat boiler connects bag dust collector, air-introduced machine, chimney by the low temperature smoke discharging pipe.
6. the vanadium titano-magnetite torpedo jar slag iron special equipment according to claim 5 is characterized in that being provided with oxygen lance slideway (2) on torpedo jar (1) side, and oxygen lance (3) can slide in the above, regulates the degree of depth of inserting in the torpedo jar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100000135A CN102069182A (en) | 2011-01-01 | 2011-01-01 | Process and special device for melting iron slag of vanadium-bearing titanomagnetite in torpedo tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100000135A CN102069182A (en) | 2011-01-01 | 2011-01-01 | Process and special device for melting iron slag of vanadium-bearing titanomagnetite in torpedo tank |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170612A (en) * | 2013-04-12 | 2013-06-26 | 北京首钢国际工程技术有限公司 | Melting method of bonded iron on hot-metal ladle |
| CN103464733A (en) * | 2013-08-16 | 2013-12-25 | 中冶南方工程技术有限公司 | Method and device for treating sticking of vanadium-and-titanium-containing molten iron on ladle |
| CN103567426A (en) * | 2012-08-02 | 2014-02-12 | 西林钢铁集团有限公司 | Online efficient treatment method for viscous iron of molten iron jars |
| CN108015297A (en) * | 2018-01-09 | 2018-05-11 | 天津市赛洋工业炉有限公司 | A kind of zinc evaporation tank bottom scrap iron element high temperature method for removing and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567426A (en) * | 2012-08-02 | 2014-02-12 | 西林钢铁集团有限公司 | Online efficient treatment method for viscous iron of molten iron jars |
| CN103170612A (en) * | 2013-04-12 | 2013-06-26 | 北京首钢国际工程技术有限公司 | Melting method of bonded iron on hot-metal ladle |
| CN103464733A (en) * | 2013-08-16 | 2013-12-25 | 中冶南方工程技术有限公司 | Method and device for treating sticking of vanadium-and-titanium-containing molten iron on ladle |
| CN108015297A (en) * | 2018-01-09 | 2018-05-11 | 天津市赛洋工业炉有限公司 | A kind of zinc evaporation tank bottom scrap iron element high temperature method for removing and device |
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Application publication date: 20110525 |