CN102909360A - Baking method and device of ladle - Google Patents
Baking method and device of ladle Download PDFInfo
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- CN102909360A CN102909360A CN2012104253128A CN201210425312A CN102909360A CN 102909360 A CN102909360 A CN 102909360A CN 2012104253128 A CN2012104253128 A CN 2012104253128A CN 201210425312 A CN201210425312 A CN 201210425312A CN 102909360 A CN102909360 A CN 102909360A
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- baking
- ladle
- exhaust tube
- tank
- exhaust pipe
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Abstract
The invention relates to the field of ladle baking, in particular to a baking method and a device of a ladle. The baking device comprises a baking cover and a burner nozzle; an exhaust pipe is arranged on the baking cover; a metal mesh is arranged at one end of the exhaust pipe and has a mesh size of 2-3 mm; the other end of the exhaust pipe is connected with a vacuum pump; and the exhaust pipe has a diameter of 40-50 mm. A counter weight is arranged at one end of the exhaust pipe. The exhaust pipe is wound on an electric winding device. Compared with the prior art, the baking method and the device of the ladle have the beneficial effects that 1), the bottom of the ladle is exhausted, so that the thermal circulation from top to bottom is formed in the ladle to eliminate baking dead angles in the ladle and keeping uniform baking effect in the ladle; 2), flames are prevented from upward channeling in the baking process to reduce the heat loss and improve the thermal efficiency; and 3), the temperature loss in the baking process is reduced to promote stable production.
Description
Technical field
The present invention relates to ladle baking field, relate in particular to a kind of baking method and device of ladle.
Background technology
The effect of ladle baking directly affects system temperature in tapping temperature drop and the whole production process, and an excessively some tank, overhaul, the light maintenance tank enabled in daily production often cause fluctuation.At present, what the ladle baking was adopted is the top-jet-type baking, when baking, exist cured effect undesirable, the tank body baking temperature is uneven, and particularly there is baking dead angle phenomenon in tank body lower part, toasts not in place, differ more than 400 ℃ with bottom temp through measuring tank body top, and when baking flare up alter, the thermal efficiency is low, causes the energy resource consumption loss very large.
The patent No. is to disclose a kind of ladle baking facilities in the patent document of CN2153710, and it is comprised of fuel gun, air distribution mechanism and burner block.Make the fuel coal air gun with coal gas, use premixing type fuel gun when making fuel with fuel oil.Air distribution mechanism is comprised of blast pipe, shell and combustion barrel.Owing to having adopted air distribution mechanism, adopting a series of measures aspect the concentration field of air current composition, the retention flame, the atomizing that improves fuel nozzle and fuel, thereby go out when bright when thoroughly solving non-complete combustion of fuel, flame, the series of problems such as environmental pollution and bag prodelta clay charcoal, improved ladle baking efficient, energy-saving effect is remarkable.
The patent No. is to disclose a kind of Quick-baking device for ladle in the patent document of CN2137574, it comprises the spirochetal nozzle of an outer watchband and coupled logical fuel pipe, be enclosed within the compressed air hose of their outsides, with at nozzle, forming one between fuel pipe and the compressed air hose is the compressed air air flue of spiral air channel partly wherein, also comprise and be enclosed within successively compressed air hose outer Gas Pipe and oxygen enrichment tracheae, fuel oil and compressed air respectively from nozzle entrance and on several through holes enter the nozzle mixing chamber, make and improve the fuel-oil atmozation degree, compressed air is sprayed onto nozzle exit through helical intake simultaneously, thereby improve fuel oil or combustion gas and compressed-air actuated degree of mixing and the length of flame, but and cooling jet, oxygen rich air has obviously improved cross section and the dynamics of flame, use this device can shorten 4～5 times of ladle baking times, improve nozzle service life, save combustion gas 20% or fuel oil 40%.
The weak point of above-mentioned two kinds of patented technologies is that structure is comparatively complicated, owing to adopting malleation work, causes flame outer spray in addition, and thermal loss is larger.
Summary of the invention
The baking method and the device that the purpose of this invention is to provide a kind of ladle, make to form top-down thermal cycle in the large tank, make the ladle cured effect even, improve the gas toast thermal efficiency, reduce because tapping temperature drop and the procedures system temperature fluctuation of the impact of molten steel pot condition keep producing stable.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of apparatus for baking of ladle comprises baking lid and burner nozzle, and baking covers and is provided with exhaust tube, and an end of exhaust tube is provided with wire netting, and mesh size is 2-3mm, and the other end of exhaust tube links to each other with vavuum pump, exhaust tube diameter 40-50mm.
One end of described exhaust tube is provided with counterweight.
Described exhaust tube is on electronic devices for taking-up.
Use the baking method of a kind of ladle of above-mentioned apparatus for baking, its concrete operation step is as follows:
1) when needs bakings ladle, will toast first to cover and place on the tank mouth of ladle, start electronic devices for taking-up, put down exhaust tube, until an end of exhaust tube 130-150mm place at the bottom of the tank stops;
2) start vavuum pump and begin water conservancy diversion, and then start burner, gas flow is 300-400m
3/ h, vacuum is 5-20KPa, and the burning flare is introduced at the bottom of the tank, and making the interior temperature difference up and down of tank is 200-300 ℃, realizes evenly baking;
3) after ladle middle part temperature reaches 850-900 ℃, continue baking 30-40 minute, baking finishes, and turns off first vavuum pump and stops to bleed, and then starts electronic devices for taking-up again, and exhaust tube is carried to baking lid bottom, and the burn-out device is namely finished roasting tank operation again.
Compared with prior art, the invention has the beneficial effects as follows: 1) bleed at pot bottom, make to form top-down thermal cycle in the ladle, eliminate baking dead angle in the tank, keep the even effect of baking in the large tank.Alter on the flare when 2) avoiding toasting, reduce heat loss, improve the thermal efficiency.3) temperature loss in the minimizing bake process promotes to produce stable.
Description of drawings
Fig. 1 is the invention process status architecture schematic diagram.
Wherein: the electronic devices for taking-up 8-of 3-burner nozzle 4-exhaust tube 5-wire netting 6-vavuum pump 7-counterweight is covered in 1-ladle 2-baking
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further:
See Fig. 1; the apparatus for baking that is a kind of ladle of the present invention is implemented the status architecture schematic diagram; comprise ladle 1, toast and cover 2 and two burner nozzles 3; baking is covered 2 and is provided with exhaust tube 4, and an end of exhaust tube 4 is provided with wire netting 5, and mesh size is 2-3mm; wire netting shields; suck residue when preventing work and stop up, the other end of exhaust tube 4 links to each other with vavuum pump 6, exhaust tube 4 diameter 40-50mm.Exhaust tube 4 is on the spool of electronic devices for taking-up 7.One end of exhaust tube 4 is provided with counterweight 8, and exhaust tube 4 can reliable lifting under the effect of electronic devices for taking-up 7 during the convenient for firing operation.
The baking method of a kind of ladle of the present invention, its concrete operation step is as follows:
1) when needs bakings ladle 1, will toast first and cover 2 and place on the tank mouth of ladle, start electronic devices for taking-up 7, put down exhaust tube 4, until an end of exhaust tube 4 130-150mm place at the bottom of the tank stops;
2) start vavuum pump 6 beginning water conservancy diversion, and then start burner, gas flow is 300-400m
3/ h, vacuum is 5-20KPa, and the burning flare is introduced at the bottom of the tank, has realized thermal cycle from top to bottom in the ladle, and for realizing even baking, up and down the temperature difference is 200-300 ℃ in the tank;
3) after ladle middle part temperature reaches 850-900 ℃, continue baking 30-40 minute, baking finishes again, turn off first vavuum pump and stop to bleed, then start electronic devices for taking-up 7, exhaust tube 4 is carried to baking lid bottom, the burn-out device is namely finished roasting tank operation again.
Claims (4)
1. the apparatus for baking of a ladle comprises baking lid and burner nozzle, it is characterized in that, baking covers and is provided with exhaust tube, and an end of exhaust tube is provided with wire netting, and mesh size is 2-3mm, the other end of exhaust tube links to each other with vavuum pump, exhaust tube diameter 40-50mm.
2. the apparatus for baking of a kind of ladle according to claim 1 is characterized in that, an end of described exhaust tube is provided with counterweight.
3. the apparatus for baking of a kind of ladle according to claim 1 and 2 is characterized in that, described exhaust tube is on electronic devices for taking-up.
4. right to use requires the baking method of a kind of ladle of 1 described apparatus for baking, it is characterized in that, concrete operation step is as follows:
1) when needs bakings ladle, will toast first to cover and place on the tank mouth of ladle, start electronic devices for taking-up, put down exhaust tube, until an end of exhaust tube 130-150mm place at the bottom of the tank stops;
2) start vavuum pump and begin water conservancy diversion, and then start burner, gas flow is 300-400m
3/ h, vacuum is 5-20KPa, and the burning flare is introduced at the bottom of the tank, and making the interior temperature difference up and down of tank is 200-300 ℃, realizes evenly baking;
3) after ladle middle part temperature reaches 850-900 ℃, continue baking 30-40 minute, baking finishes, and turns off first vavuum pump and stops to bleed, and then starts electronic devices for taking-up again, and exhaust tube is carried to baking lid bottom, and the burn-out device is namely finished roasting tank operation again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104253128A CN102909360A (en) | 2012-10-30 | 2012-10-30 | Baking method and device of ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104253128A CN102909360A (en) | 2012-10-30 | 2012-10-30 | Baking method and device of ladle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102909360A true CN102909360A (en) | 2013-02-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104253128A Pending CN102909360A (en) | 2012-10-30 | 2012-10-30 | Baking method and device of ladle |
Country Status (1)
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| CN (1) | CN102909360A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264145A (en) * | 2013-06-07 | 2013-08-28 | 鞍钢股份有限公司 | Method for improving cleanliness of liquid steel in first ladle while casting |
| CN108817365A (en) * | 2018-07-05 | 2018-11-16 | 温州大学 | A kind of channel-type tundish and its pre-heating mean that heats up |
Citations (5)
| 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 |
| CN201040766Y (en) * | 2006-09-05 | 2008-03-26 | 鞍钢股份有限公司 | Baking and air inducing device at molten steel tank bottom |
| CN201168776Y (en) * | 2008-04-10 | 2008-12-24 | 于宏 | Online baking apparatus for continuous casting tundish nozzle |
| CN201366502Y (en) * | 2009-03-13 | 2009-12-23 | 鞍钢股份有限公司 | Novel ladle baking device |
| CN202910290U (en) * | 2012-10-30 | 2013-05-01 | 鞍钢股份有限公司 | Baking device of steel water tank |
-
2012
- 2012-10-30 CN CN2012104253128A patent/CN102909360A/en active Pending
Patent Citations (5)
| 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 |
| CN201040766Y (en) * | 2006-09-05 | 2008-03-26 | 鞍钢股份有限公司 | Baking and air inducing device at molten steel tank bottom |
| CN201168776Y (en) * | 2008-04-10 | 2008-12-24 | 于宏 | Online baking apparatus for continuous casting tundish nozzle |
| CN201366502Y (en) * | 2009-03-13 | 2009-12-23 | 鞍钢股份有限公司 | Novel ladle baking device |
| CN202910290U (en) * | 2012-10-30 | 2013-05-01 | 鞍钢股份有限公司 | Baking device of steel water tank |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264145A (en) * | 2013-06-07 | 2013-08-28 | 鞍钢股份有限公司 | Method for improving cleanliness of liquid steel in first ladle while casting |
| CN108817365A (en) * | 2018-07-05 | 2018-11-16 | 温州大学 | A kind of channel-type tundish and its pre-heating mean that heats up |
| CN108817365B (en) * | 2018-07-05 | 2020-05-05 | 温州大学 | Channel type tundish and heating and preheating method thereof |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |