CN104889378A - Vehicle type baking device for continuous casting tundish nozzles - Google Patents
Vehicle type baking device for continuous casting tundish nozzles Download PDFInfo
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- CN104889378A CN104889378A CN201510302882.1A CN201510302882A CN104889378A CN 104889378 A CN104889378 A CN 104889378A CN 201510302882 A CN201510302882 A CN 201510302882A CN 104889378 A CN104889378 A CN 104889378A
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- baking
- river
- continuous casting
- tundish
- nozzles
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Abstract
The invention discloses a vehicle type baking device for continuous casting tundish nozzles. The vehicle type baking device has the advantages that wind energy is transmitted through a jet negative-pressure sucker by the aid of negative-pressure principles, so that waste heat and flame in tundish can be sucked from nozzle holes when the tundish is baked, and the nozzles can be uniformly heated from top to bottom until the temperatures of the nozzles reach steel pouring temperatures; the nozzles not only can be uniformly heated, but also can be quickly heated, the measured temperatures of the nozzles can reach 800 DEG C at least in 1.2-1.5 hours, steel can be smoothly poured, the liquid steel yield can be increased, the bottom of the tundish can be prevented from being directly sprayed and baked by the flame to deform, the service life of the tundish can be prolonged, potential safety hazards can be reduced, production can be smoothly carried out, nozzle baking field environments can be improved, radiation and smoke dust pollution can be completely eradicated, particularly, physical injury to workers due to residual gas can be prevented, the vehicle type baking device is simple in operation and is convenient, speedy, safe and reliable, energy can be saved, and consumption can be reduced.
Description
Technical field
The invention belongs to metallurgical equipment field of energy-saving technology, i.e. steel plant continuous casting middle water containing opening car formula apparatus for baking.
Background technology
For many years, steel plant continuous casting baking of tundish mouth of a river method is combustion-supporting with gas burner air distribution, directly spray roasting bag lower end, the mouth of a river, the end, subject matter shows: 1, directly spray roasting with gas burner, the mouth of a river is inside and outside heated inequality, very easily causes and burst, so that accidents caused.2, due to directly in the baking of bag end flame, cause the distortion of the bag end, need often to repair so that need to change the bag end, reduce the service life of tundish.3, Fire Radiation and abundant residues coal gas make site environment pollute, and infringement operator's is healthy.4, because mouth of a river baking time is long, temperature low (about 3.5 ~ 4 hours, 450 ~ 600 DEG C), causes to open and waters difficulty, need bleed off a molten steel with pendulum groove, about 3 ~ 5 tons/time, and must will improve tapping temperature by first three stove steel, many consuming electric powers about 900 degree/time.
Summary of the invention
The present invention seeks to: for above-mentioned Problems existing, devise continuous casting production car formula mouth of a river baking device, improve mouth of a river baking temperature, the mouth of a river is inside and outside heated evenly, stop because the temperature difference bursts accident, improve to open and water success rate, extend the service life of tundish, reduce environmental pollution and the actual bodily harm to workman, simultaneously energy-saving and cost-reducing synergy.
Technical scheme of the present invention is: continuous casting production car formula mouth of a river apparatus for baking, it comprises the circular baking barrel of back cover under upper shed, along additionally arranging refractory seals packing ring on it, the pipe mirror peep hole of inner chamber is stretched in the positive side-wall hole weldering one of baking barrel, stretch into the exhaust fitting of inner chamber in another STH weldering one, exhaust fitting be connected to jet flow negative pressure axle haustorium outward; The inner chamber of baking barrel adopts flame-proof thermal insulation material ramming to become pot bottom-shape liner; Baking barrel is sitting in chassis.Corner Strapped universal wheel under chassis.
Baking barrel just below be welded with pipe, at pipe overcoat one helical compression spring, spring is plugged in the fixing base matched, and base is welded on square chassis, and chassis is welded with handrail, and below chassis, Corner Strapped has universal wheel.
Described jet flow negative pressure axle haustorium comprises circular little bellows, is fixed with suction tube at the inner chamber of its inlet end, and its bore size is greater than mouth of a river aperture size, is outwards fixed with penetrates airduct at the inner chamber of the exhaust end of little bellows, and suction tube inserts and penetrates airduct; Penetrate airduct and the nestable gap of suction tube is 1.5 ~ 3 ㎜,
The lower wall of little bellows is fixed with ajutage joint.
Effect of the present invention is: 1, toast 1.2 ~ 1.5 hours, mouth of a river temperature can reach 800 ~ 1000 DEG C.2, gas saving 17500Nm
3/ time.3, improve conticaster casting rate, reduce power consumption about 6000 degree/heat, reduce molten steel and lose 5 tons/time.4, stopped flame to the roasting metaboly of tundish bottom spray, extended tundish service life, calculate the loss that can reduce by 2 centre inclusions for a year.5, stopped Yin Wendu inequality and caused the accident of bursting, having reduced potential safety hazard, make production direct motion.6, improve the site environment at the baking mouth of a river, stop Fire Radiation and smoke contamination.7, the actual bodily harm of remaining coal gas to employee is particularly avoided.8, simple to operate, convenient and swift, energy-saving and cost-reducing, safe and reliable.
Below in conjunction with accompanying drawing, embodiments of the present invention are described in further detail.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present invention.
Fig. 2 is jet flow negative pressure axle haustorium structure diagram.
Detailed description of the invention
See Fig. 1,2, parts title is as follows: baking barrel 1, seal washer 2, pipe mirror peep hole 3, exhaust fitting 4, jet flow negative pressure axle haustorium 5, pot bottom-shape liner 6, pipe 7, spring 8, base 9, chassis 10, handrail 11, universal wheel 12, circular little bellows 5-1, suction elbow 5-2, suction tube 5-3, penetrates airduct 5-4, ajutage joint 5-5.
See Fig. 1, continuous casting production car formula mouth of a river apparatus for baking, be provided with the circular baking barrel 1 of back cover under upper shed, along additionally arranging refractory seals packing ring 2 on it, the pipe mirror peep hole 3 of inner chamber is stretched in the positive side-wall hole weldering one of baking barrel 1, the exhaust fitting 4 of inner chamber is stretched in another STH weldering one, with the jet flow negative pressure axle haustorium 5 connected outward, the inner chamber of baking barrel 1 adopts flame-proof thermal insulation material ramming to become pot bottom-shape liner 6, be convenient to the deposition of waste residue, easy to clean, baking barrel 1 just below be welded with pipe 7, at pipe 7 overcoat one helical compression spring 8, be plugged in the fixing base 9 matched, rise and support and cushioning effect, base 9 is welded on square chassis 10, chassis is welded with handrail 11, there is universal wheel 12 on chassis 10 below Corner Strapped.
See Fig. 2, jet flow negative pressure aspirator 5, jet flow negative pressure aspirator 5 is provided with circular little bellows 5-1, suction elbow 5-2 is welded with at little bellows air admission hole outer wall centre bit, connect with the blast pipe 4 of baking barrel 1, thermopipette 5-3 is fixed with at the inlet end of the inner chamber of little bellows 5-1, its bore is 1.2 ~ 1.5 times of aperture, the mouth of a river, outwards be fixed with at the exhaust nose end inner chamber of little bellows 5-1 and penetrate airduct 5-4, penetrate airduct 5-4 nestable outside suction tube 5-3, gap 1.5 ~ 3 ㎜ formed between two pipes are nestable, this structure can economize air quantity, strengthen negative-pressure ward effect, the effect of suction tube 5-3 can be cooled again.The lower wall of little bellows 5-1 is fixed with ajutage joint 5-5, connects air supplying hose.Penetrate airduct 5-4 and connect discharge hose.
The invention process method: after apparatus for baking passing in the car formula mouth of a river is in place to baking table, tundish whereabouts press seal packing ring 2 and baking barrel 1, make it to seal and fasten lower end, the mouth of a river, when baking of tundish one hours, open compressed air or nitrogen valve again, high-pressure blast connects flexible pipe soon through high pressure and enters little bellows 5-1, gap again through penetrating airduct 5-4 and suction tube 5-3 sprays forward, at center, the positive front end bit field of suction tube 5-3, form make a concerted effort air-flow and the stronger negative pressuren zone that produces, wind concentration and improve wind effect, mouth of a river baking barrel 1 inner chamber gas is sucked and forms secondary negative pressuren zone, waste heat flame simultaneously in tundish is sucked out through hole, the mouth of a river, make mouth of a river thermally equivalent intensification from top to bottom, the waste gas footpath suction tube 5-3 pumped out, discharge on-the-spot with ejection air-flow through the high temperature resistant flexible pipe that connects soon, toast and completely mention tundish, car formula mouth of a river apparatus for baking can be withdrawn baking table, other equipment can be placed, to meet need of production.
Utilize wind energy to produce negative pressure by jet flow negative pressure aspirator, waste heat during baking tundish pumped out downwards from hole, the mouth of a river, make the mouth of a river from top to bottom evenly heated fast heat up, reaching can the temperature of big vast steel.
Claims (5)
1. a continuous casting production car formula mouth of a river apparatus for baking, it is characterized in that comprising the circular baking barrel (1) of back cover under upper shed, along additionally arranging refractory seals packing ring (2) on it, the pipe mirror peep hole (3) of inner chamber is stretched in the positive side-wall hole weldering one of baking barrel (1), stretch into the exhaust fitting (4) of inner chamber in another STH weldering one, exhaust fitting (4) be connected to jet flow negative pressure axle haustorium (5) outward; The inner chamber of baking barrel (1) adopts flame-proof thermal insulation material ramming to become pot bottom-shape liner (6); Baking barrel (1) is sitting in chassis (10).
2. according to the continuous casting production car formula mouth of a river according to claim 1 apparatus for baking, it is characterized in that baking barrel (1) just below be welded with pipe (7), at pipe (7) overcoat one helical compression spring (8), spring (8) is plugged in the fixing base (9) matched, base (9) is welded on square chassis (10), chassis is welded with handrail (11), chassis (10) below Corner Strapped have universal wheel (12).
3. according to the continuous casting production car formula mouth of a river apparatus for baking described in claim 1 or 2, it is characterized in that described jet flow negative pressure axle haustorium comprises circular little bellows (5-1), suction tube (5-3) is fixed with at the inner chamber of its inlet end, its bore size is greater than mouth of a river aperture size, outwards be fixed with at the inner chamber of the exhaust end of little bellows (5-1) and penetrate airduct (5-4), suction tube (5-3) inserts and penetrates airduct (5-4); The lower wall of little bellows (5-1) is fixed with ajutage joint (5-5).
4., according to the continuous casting production car formula mouth of a river according to claim 3 apparatus for baking, it is characterized in that Corner Strapped universal wheel under chassis (10).
5., according to the continuous casting production car formula mouth of a river according to claim 4 apparatus for baking, it is characterized in that penetrating airduct (5-4) with suction tube (5-3) nestable gap is 1.5 ~ 3 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302882.1A CN104889378A (en) | 2015-06-06 | 2015-06-06 | Vehicle type baking device for continuous casting tundish nozzles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302882.1A CN104889378A (en) | 2015-06-06 | 2015-06-06 | Vehicle type baking device for continuous casting tundish nozzles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104889378A true CN104889378A (en) | 2015-09-09 |
Family
ID=54022573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510302882.1A Pending CN104889378A (en) | 2015-06-06 | 2015-06-06 | Vehicle type baking device for continuous casting tundish nozzles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104889378A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145336A (en) * | 1982-02-23 | 1983-08-30 | Mitsubishi Steel Mfg Co Ltd | Preheating method of tundish for horizontal and continuous casting |
| KR200161742Y1 (en) * | 1995-09-23 | 1999-12-01 | 이구택 | Preheating device for suction type submerged nozzle |
| KR20040097529A (en) * | 2003-05-12 | 2004-11-18 | 주식회사 포스코 | Suction Dummy Nozzel for Pre-heating of Upper Nozzel |
| CN201823931U (en) * | 2010-09-14 | 2011-05-11 | 邯钢集团邯宝钢铁有限公司 | Baking device for submersed water gap |
| CN202555811U (en) * | 2012-03-09 | 2012-11-28 | 中冶连铸技术工程股份有限公司 | Blown nozzle roaster |
| CN202894308U (en) * | 2012-10-21 | 2013-04-24 | 河南青山金汇不锈钢产业有限公司 | Slab continuous casting tundish upper water gap air draft baking device |
| CN204700297U (en) * | 2015-06-06 | 2015-10-14 | 北京五一环保科技股份有限公司 | Continuous casting intermediate inlet car formula apparatus for baking |
-
2015
- 2015-06-06 CN CN201510302882.1A patent/CN104889378A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145336A (en) * | 1982-02-23 | 1983-08-30 | Mitsubishi Steel Mfg Co Ltd | Preheating method of tundish for horizontal and continuous casting |
| KR200161742Y1 (en) * | 1995-09-23 | 1999-12-01 | 이구택 | Preheating device for suction type submerged nozzle |
| KR20040097529A (en) * | 2003-05-12 | 2004-11-18 | 주식회사 포스코 | Suction Dummy Nozzel for Pre-heating of Upper Nozzel |
| CN201823931U (en) * | 2010-09-14 | 2011-05-11 | 邯钢集团邯宝钢铁有限公司 | Baking device for submersed water gap |
| CN202555811U (en) * | 2012-03-09 | 2012-11-28 | 中冶连铸技术工程股份有限公司 | Blown nozzle roaster |
| CN202894308U (en) * | 2012-10-21 | 2013-04-24 | 河南青山金汇不锈钢产业有限公司 | Slab continuous casting tundish upper water gap air draft baking device |
| CN204700297U (en) * | 2015-06-06 | 2015-10-14 | 北京五一环保科技股份有限公司 | Continuous casting intermediate inlet car formula apparatus for baking |
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Application publication date: 20150909 |
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| RJ01 | Rejection of invention patent application after publication |