CN103878357A - Continuous casting machine tundish submersed nozzle baking furnace - Google Patents
Continuous casting machine tundish submersed nozzle baking furnace Download PDFInfo
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- CN103878357A CN103878357A CN201410112975.3A CN201410112975A CN103878357A CN 103878357 A CN103878357 A CN 103878357A CN 201410112975 A CN201410112975 A CN 201410112975A CN 103878357 A CN103878357 A CN 103878357A
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Abstract
The invention relates to the field of metallurgical equipment, in particular to a continuous casting machine tundish submersed nozzle baking furnace. The continuous casting machine tundish submersed nozzle baking furnace comprises a furnace body, wherein two baking chambers are arranged in the furnace body, each baking chamber is provided with a spraying nozzle, each spraying nozzle is connected with a mixing valve, each mixing valve is connected with an air inlet pipe and a fuel gas inlet pipe, each air inlet pipe and each fuel gas inlet pipe are respectively provided with a control hand valve, an installation plate is arranged at the top of each baking chamber, a clamping groove is formed in each installation plate to fix a submersed nozzle, the furnace body is provided with a furnace door, a heat-preservation layer is arranged at the inner side of the furnace door, a flame retardant layer is arranged on the inner wall of each baking chamber, a heat preservation plate is formed at the top of the furnace body and provided with openings matched with the submersed nozzles, pulleys are arranged at the bottom of the furnace body, and pothooks are arranged at the top of the furnace body. The continuous casting machine tundish submersed nozzle baking furnace has the advantages of being safe to operate, capable of meeting production requirements, capable of guaranteeing baking quality and convenient to move and transport, saving energy and the like.
Description
Technical field
The present invention relates to field of metallurgical equipment, relate to particularly conticaster tundish immersed nozzle oven.
Background technology
Submersed nozzle, between continuous casting tundish and crystallizer, is molten steel flows to crystallizer mozzle from tundish.Its effect is: prevent secondary oxidation of steel, control flow regime and the injection rate of molten steel, promote inclusion floating, prevent that covering slag and non-metallic inclusion are involved in molten steel medium.Along with scientific and technological development, day by day harsh to the requirement of steel performance, submersed nozzle has become the beam generation secondary oxidation that prevents from tundish to crystallizer, has improved one of most important functional refractory of steel cleanness.In submersed nozzle use procedure, conventionally need to toast to prevent that the cold steel of the too low knot of temperature from causing the obstruction at the mouth of a river and excessive temperature differentials generation stress to concentrate the mouth of a river of causing to burst.
At present, in existing immersed type water outlet baking furnace, smokejack is mostly set in oven discharges the gas after burning, its benefit is to guarantee that the mouth of a river toasts under airtight condition, reach the object that makes full use of the energy, but the equipment that approaches in the inadequate situation of gas-fired easily causes CO poisoning, causes personal injury; In addition, in existing immersed type water outlet baking furnace, in body of heater, be mostly only provided with a baking vessel, in the time that output is large or occur emergency, once the maintenance that needs repairing of breaking down, can be to having a huge impact; In addition, in existing immersed type water outlet baking furnace, in bake process, mostly can not adjust the concentration of combustion gas in combustion mixture, thereby can have a negative impact to submersed nozzle surface baking temperature, and then affecting final cured effect, this is the deficiencies in the prior art parts.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above the conticaster tundish immersed nozzle oven that provide a kind of handling safety, can meet Production requirement, can guarantee baking quality, conveniently mobile and transportation also can make full use of the energy.
Technical scheme of the present invention is: a kind of conticaster tundish immersed nozzle oven, comprise body of heater, in described body of heater, be provided with Liang Ge baking vessel, in each baking vessel, be equipped with nozzle, nozzle is connected with mixing valve, mixing valve is connected with air intake duct and gas inlet pipe, on air intake duct and gas inlet pipe, be equipped with and control hand valve, baking vessel top is provided with installing plate, installing plate is provided with draw-in groove and is used for fixing submersed nozzle, body of heater is provided with fire door, fire door inner side is provided with heat-insulation layer, baking vessel's inwall is provided with flame retardant coating, body of heater top is provided with warming plate, warming plate is provided with the opening matching with submersed nozzle, bottom of furnace body is provided with pulley, body of heater top is provided with suspension hook.
By installing plate being set at baking vessel top, draw-in groove is set on installing plate, utilize draw-in groove to fix submersed nozzle, separately do not establish exhaust smoke hole, utilize submersed nozzle top that flue gas is discharged, operating personnel have or not flame to judge furnace gas combustion case by observation, poisoning to prevent CO, guarantee personal security; Liang Ge baking vessel is set in body of heater, and baking when both can realizing two mouths of a river, can meet again the quick-replaceable under the urgent condition of production; On air intake duct and gas inlet pipe, be provided with and control hand valve, can realize the adjustment control to required air quantity and gas quantity, to meet demand in bake process, guarantee the baking quality of submersed nozzle; In fire door inner side and body of heater top, insulation material is set, can makes full use of heat energy, and can save mouth of a river muff, reduce production costs; At bottom of furnace body, pulley is set, at body of heater top, suspension hook is set, both can strengthen mobility, the handling of conveniently driving a vehicle again, be convenient to transportation.In immersed type water outlet baking furnace, carry out above improvement design simultaneously, make immersed type water outlet baking furnace whole structure be improved significantly, in the production requirement that meets high-quality, a large amount, safety simultaneously, can make full use of again the energy, and can conveniently move and the handling of driving a vehicle.
Preferably, described heat-insulation layer is made up of high aluminum fiber, and flame retardant coating is made up of high-alumina brick.
Preferably, described pulley is the universal wheel with auto-lock function, and the quantity of universal wheel is four, and four universal wheels are located at respectively four edges of furnace bottom.
Preferably, the quantity of described suspension hook is two, and two suspension hooks are welded on respectively the middle part of furnace roof dual-side.
Preferably, the installation site of described nozzle and the position of tapping hole match.
Preferably, described body of heater is made up of steel plate.
Preferably, described gas inlet pipe is connected with gas tank.
Preferably, described control hand valve is located at the one end near mixing valve.
The invention has the beneficial effects as follows: fix submersed nozzle by the installing plate with draw-in groove on furnace roof, separately do not establish exhaust smoke hole, utilize submersed nozzle top that flue gas is discharged, have or not flame to judge furnace gas combustion case by observation, can prevent that CO is poisoning, guarantee personal security; Proper Design is become to approach airtight, in baking vessel, arrange inside flame retardant coating, fire door heat-insulation layer is set, furnace roof arranges warming plate, to make full use of heat energy, can save mouth of a river muff, reduce production costs; At bottom of furnace body, pulley is set, body of heater top arranges suspension hook, can conveniently move, be convenient to transportation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is gas piping schematic diagram of the present invention.
In figure, 1, body of heater, 2, nozzle, 3, gas inlet pipe, 4, control hand valve, 5, mixing valve, 6, air intake duct, 7, flame retardant coating, 8, submersed nozzle, 9, heat-insulation layer, 10, fire door, 11, suspension hook, 12, installing plate, 13, warming plate.
The specific embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail.
As depicted in figs. 1 and 2, conticaster tundish immersed nozzle oven of the present invention, comprise body of heater 1, in body of heater 1, be provided with Liang Ge baking vessel, in each baking vessel, be equipped with nozzle 2, nozzle 2 is connected with mixing valve 5, mixing valve 5 is connected with air intake duct 6 and gas inlet pipe 3, on air intake duct 6 and gas inlet pipe 3, be equipped with and control hand valve 4, baking vessel top is provided with installing plate 12, installing plate 12 is provided with draw-in groove and is used for fixing submersed nozzle 8, body of heater 1 is provided with fire door 10, fire door 10 inner sides are provided with heat-insulation layer 9, baking vessel's inwall is provided with flame retardant coating 7, body of heater 1 top is provided with warming plate 13, warming plate 13 is provided with the opening matching with submersed nozzle 8, body of heater 1 bottom is provided with pulley, body of heater 1 top is provided with suspension hook 11.
By installing plate being set at baking vessel top, draw-in groove is set on installing plate, utilize draw-in groove to fix submersed nozzle, separately do not establish exhaust smoke hole, utilize submersed nozzle top that flue gas is discharged, operating personnel have or not flame to judge furnace gas combustion case by observation, poisoning to prevent CO, guarantee personal security; Liang Ge baking vessel is set in body of heater, and baking when both can realizing two mouths of a river, can meet again the quick-replaceable under the urgent condition of production; On air intake duct and gas inlet pipe, be provided with and control hand valve, can realize the adjustment control to required air quantity and gas quantity, to meet demand in bake process, guarantee the baking quality of submersed nozzle; In fire door inner side and body of heater top, insulation material is set, can makes full use of heat energy, and can save mouth of a river muff, reduce production costs; At bottom of furnace body, pulley is set, at body of heater top, suspension hook is set, both can strengthen mobility, the handling of conveniently driving a vehicle again, be convenient to transportation.In immersed type water outlet baking furnace, carry out above improvement design simultaneously, make immersed type water outlet baking furnace whole structure be improved significantly, in the production requirement that meets high-quality, a large amount, safety simultaneously, can make full use of again the energy, and can conveniently move and the handling of driving a vehicle.
In embodiments of the invention, flame retardant coating 7 is made up of high-alumina brick, heat-insulation layer 9 is made up of high aluminum fiber, pulley is the universal wheel with auto-lock function, the quantity of universal wheel is four, four universal wheels are located at respectively four edges of furnace bottom, the quantity of suspension hook 11 is two, two suspension hooks are welded on respectively the middle part of furnace roof dual-side, body of heater 1 is made up of Plate Welding, air intake duct 6 is connected with mixing valve 5 with gas inlet pipe 3 fully mixes gas in mixing valve, and be located at one end near mixing valve on pipeline by controlling hand valve 4, the combustion gas using is the byproduct coal gas in steel-making, to save cost, improve energy utilization rate, gaseous mixture is connected that with nozzle 2 submersed nozzle is toasted by mixing valve 5.
When use, first by oven door opening, water nozzle clamper is aimed at submersed nozzle leptoprosopy to have the installing plate translation of draw-in groove to enter, and submersed nozzle is stuck on installing plate.Then by the side opening position of nozzle alignment submersed nozzle, furnace sidewall has nozzle bore according to the side opening position of submersed nozzle, and nozzle is fixed on nozzle bore position, and the installation site of nozzle and the position of tapping hole are matched.First manual firing when baking, then opens combustion gas control hand valve point combustion combustion gas, strengthens gas flow, then adjusts flame size after opening compressed air control hand valve, finally closes fire door, and warming plate is covered on the mouth of a river in order to insulation.After reaching after the baking temperature of the mouth of a river, first closing air shut-off valve, close control valve for coal gas, to prevent that submersed nozzle surface baking temperature is affected, and opens fire door and can take out submersed nozzle.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is to be limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these embodiments, but these changes and modification all fall into protection scope of the present invention.
Claims (8)
1. a conticaster tundish immersed nozzle oven, comprise body of heater, it is characterized in that: in described body of heater, be provided with Liang Ge baking vessel, in each baking vessel, be equipped with nozzle, nozzle is connected with mixing valve, mixing valve is connected with air intake duct and gas inlet pipe, on air intake duct and gas inlet pipe, be equipped with and control hand valve, baking vessel top is provided with installing plate, installing plate is provided with draw-in groove and is used for fixing submersed nozzle, body of heater is provided with fire door, fire door inner side is provided with heat-insulation layer, baking vessel's inwall is provided with flame retardant coating, body of heater top is provided with warming plate, warming plate is provided with the opening matching with submersed nozzle, bottom of furnace body is provided with pulley, body of heater top is provided with suspension hook.
2. conticaster tundish immersed nozzle oven as claimed in claim 1, is characterized in that: described heat-insulation layer is made up of high aluminum fiber, and flame retardant coating is made up of high-alumina brick.
3. conticaster tundish immersed nozzle oven as claimed in claim 1, is characterized in that: described pulley is the universal wheel with auto-lock function, the quantity of universal wheel is four, and four universal wheels are located at respectively four edges of furnace bottom.
4. conticaster tundish immersed nozzle oven as claimed in claim 1, is characterized in that: the quantity of described suspension hook is two, and two suspension hooks are welded on respectively the middle part of furnace roof dual-side.
5. conticaster tundish immersed nozzle oven as claimed in claim 1, is characterized in that: the installation site of described nozzle and the position of tapping hole match.
6. conticaster tundish immersed nozzle oven as claimed in claim 1, is characterized in that: described body of heater is made up of steel plate.
7. conticaster tundish immersed nozzle oven as claimed in claim 1, is characterized in that: described gas inlet pipe is connected with gas tank.
8. conticaster tundish immersed nozzle oven as claimed in claim 1, is characterized in that: described control hand valve is located at the one end near mixing valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410112975.3A CN103878357B (en) | 2014-03-25 | 2014-03-25 | Continuous casting tundish immersed type water outlet baking furnace |
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| CN201410112975.3A CN103878357B (en) | 2014-03-25 | 2014-03-25 | Continuous casting tundish immersed type water outlet baking furnace |
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| CN103878357A true CN103878357A (en) | 2014-06-25 |
| CN103878357B CN103878357B (en) | 2016-06-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312039A (en) * | 2015-06-29 | 2017-01-11 | 鞍钢股份有限公司 | Off-line baking device and method for submersed nozzle of tundish |
| CN108160958A (en) * | 2017-12-08 | 2018-06-15 | 鞍钢铸钢有限公司 | A kind of feed trumpet brick installation method |
| CN109175344A (en) * | 2018-11-13 | 2019-01-11 | 四川德胜集团钒钛有限公司 | A kind of mouth of a river roasting plant |
| CN115478133A (en) * | 2022-10-08 | 2022-12-16 | 首钢股份公司迁安钢铁公司 | RH baking device and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170642A (en) * | 2019-07-11 | 2019-08-27 | 山西通才工贸有限公司 | A kind of submerged nozzle on-line roasting apparatus and method |
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2014
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Patent Citations (13)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312039A (en) * | 2015-06-29 | 2017-01-11 | 鞍钢股份有限公司 | Off-line baking device and method for submersed nozzle of tundish |
| CN106312039B (en) * | 2015-06-29 | 2018-04-03 | 鞍钢股份有限公司 | A kind of tundish immersed nozzle off-line baking device and method |
| CN108160958A (en) * | 2017-12-08 | 2018-06-15 | 鞍钢铸钢有限公司 | A kind of feed trumpet brick installation method |
| CN109175344A (en) * | 2018-11-13 | 2019-01-11 | 四川德胜集团钒钛有限公司 | A kind of mouth of a river roasting plant |
| CN115478133A (en) * | 2022-10-08 | 2022-12-16 | 首钢股份公司迁安钢铁公司 | RH baking device and method |
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| CN103878357B (en) | 2016-06-08 |
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