CN102990049B - Vacuum ladle - Google Patents
Vacuum ladle Download PDFInfo
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- CN102990049B CN102990049B CN201210567569.7A CN201210567569A CN102990049B CN 102990049 B CN102990049 B CN 102990049B CN 201210567569 A CN201210567569 A CN 201210567569A CN 102990049 B CN102990049 B CN 102990049B
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- elema
- vacuum ladle
- liner
- housing
- lid
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Abstract
The invention discloses a kind of vacuum ladle, can be used as the container of transport aluminium water, this vacuum ladle comprises housing, lid and electric heating assembly.Lid to be located on housing and between lid and housing, to limit airtight container cavity.Electric heating assembly is located in container cavity.The vacuum ladle of the embodiment of the present invention, by arranging electric heating assembly, thus can realize, to vacuum ladle quick baking, improve baking efficiency, and cured effect is good, effectively improves the service life of vacuum ladle, reduces use, maintenance cost.
Description
Technical field
The present invention relates to metallurgical technology field, especially relate to a kind of vacuum ladle.
Background technology
Along with the development of smelting technique, the function of aluminium water vacuum ladle has a very large change, and it is not only the instrument transporting aluminium water, has more become a part of aluminium crystal sweetening process.But, the moisture contained by vacuum ladle liner must be removed before the use, people adopt firewood to heat or oil heating usually, this traditional mode of heating cured effect is not good enough, and baking time is long, and does not reach desirable temperature, vacuum ladle liner is very easily caused to be heated uneven distortion or cracking, moisture is failed to drain and is blasted in use, has a strong impact on the service life of vacuum ladle, threatens the job safety of field worker simultaneously.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.
For this reason, one object of the present invention is to propose a kind of vacuum ladle, and this vacuum ladle is provided with electric heating assembly, thus improves Drying Rates and drying effect.
According to vacuum ladle of the present invention, comprising: housing; Lid, described lid is established on the housing and limit airtight container cavity between described lid and described housing; And electric heating assembly, described electric heating assembly is located in container cavity.
According to the vacuum ladle of the embodiment of the present invention, by arranging electric heating assembly, thus can realize, to vacuum ladle quick baking, improve baking efficiency, and cured effect is good, effectively improves the service life of vacuum ladle, reduces use, maintenance cost.
In addition, according to vacuum ladle of the present invention, following additional technical feature can also be had:
In one embodiment of the invention, described housing comprises: metal shell; And liner, described liner is located in described shell and described liner is made up of refractory material.Adopt this kind of structure, when can ensure to transport aluminium water, energy loss is little.
In one embodiment of the invention, described electric heating assembly comprises Elema.By arranging Elema as heating element heater, thus improve drying rate, and drying effect is good, and Elema automation electric-control system be can mate, thus automatic temperature-control, temperature control facilitated
In one embodiment of the invention, the resistance of described Elema is at 2.0 Ω-2.4 Ω.
In one embodiment of the invention, described Elema is two and is arranged in series.
In one embodiment of the invention, the two ends to described Elema apply 380V voltage to toast described liner.
In one embodiment of the invention, when the temperature of described Elema is more than the first predetermined temperature, in described container cavity, nitrogen is passed into.The life-span of Elema can be improve like this, reduce costs, simultaneously owing to there being the protection of nitrogen, generating hydrogen hardly in container cavity, avoid the intensity causing element owing to having hydrogen to reduce.
In one embodiment of the invention, described vacuum ladle also comprises source of the gas, and described source of the gas is located in one of them of described housing and described lid, for inputting nitrogen in described container cavity.
In one embodiment of the invention, the temperature of described Elema is controlled below the second predetermined temperature.
In one embodiment of the invention, described first predetermined temperature is approximately 1000 DEG C, and described second predetermined temperature is approximately 1200 DEG C.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the schematic diagram of vacuum ladle according to an embodiment of the invention;
Fig. 2 is the schematic diagram of vacuum ladle in accordance with another embodiment of the present invention.
Description of reference numerals:
Vacuum ladle 100;
Housing 1, metal shell 11, liner 2;
Lid 2;
Elema 3;
Source of the gas 4.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Describe the vacuum ladle 100 according to the embodiment of the present invention below with reference to Fig. 1-Fig. 2, be suitable for the container as transport aluminium water.
As shown in Figure 1, vacuum ladle 100 comprises housing 1, lid 2 and electric heating assembly according to an embodiment of the invention.
Housing 1 can be cylindrical, and its upper end can be opened wide to form opening.Lid 2 to be located on housing 1 and to limit airtight container cavity between lid 2 and housing 1, and such as lid 2 is closed this opening thus jointly limited a container cavity with housing 1, and this container cavity is used for depositing aluminium water.
Certainly, be understandable that, housing 1 be also provided with the import and outlet (scheming not shown) that communicate with this container cavity, aluminium water can from import and this container cavity of outlet turnover.In addition, it should be noted that, the shape of housing 1 is also not limited to above-mentioned cylindrical, and housing 1, on the basis of reading content disclosed herein, can be processed into other required shape according to practical condition by those skilled in the art.
Housing 1 can comprise metal shell 11 and liner 12, metal shell 11 can adopt steel to make, certainly other metal also can be adopted to make, liner 12 is located in metal shell 11 and liner 12 is made up of refractory material, such as liner 12 can be made up of high alumina refractories, building by laying bricks or stones of liner 12 can have two kinds of modes, and one can be laying fireproof bricks, and another kind can be and all adopts castable moulding by casting.Be understandable that, these two kinds of modes are prior art, and known by those skilled in the art, launch no longer in detail here.
As shown in Figure 1, electric heating assembly is located in container cavity, for toasting container cavity.Specifically, can be used for toasting liner 12 after electric heating assembly energising, thus the moisture removal of liner 12 is fallen, ensure security when vacuum ladle 100 uses.
According to the vacuum ladle 100 of the embodiment of the present invention, by arranging electric heating assembly, thus can realize vacuum ladle 100 quick baking, improve baking efficiency, and cured effect is good, effectively improve the service life of vacuum ladle 100, reduce use, maintenance cost.
According to a preferred embodiment of the present invention, electric heating assembly comprises Elema 3.Elema 3 can be primary raw material with the green hexagonal carborundum of high-purity, by certain material than processing base, and bar-shaped, the nonmetal high-temperature electric heat element of tubulose made through 2200 DEG C of high temperature silication recrystallizations sintering.
Elema 3 can be formed as general U-shape.Due to Elema 3 there is high temperature resistant, anti-oxidant, quick heating, the plurality of advantages such as the life-span is long, high temperature deformation is little, installation and maintenance are convenient, therefore Elema 3 self-heating is made to become heater by applying predetermined voltage to Elema 3, for drying liner 12, not only substantially increase drying rate, and drying effect is good, and Elema 3 can mate automation electric-control system, thus facilitate automatic temperature-control, temperature control.
Preferably, Elema 3 is two and is arranged in series, and can improve drying effect like this.Certainly, the present invention is not limited to this, and in another preferred embodiment of the invention, Elema 3 is multiple, and the plurality of Elema 3 is arranged in series and is arranged in annular, and the contiguous liner 12 of multiple Elemas 3 of this annular is arranged.Such as the horizontal cross-section of liner 12 can be an annular, then the plurality of Elema 3 can be arranged in series into the annular that is less than this liner 12 horizontal cross-section, so Elema 3 is dried liner 12 better, ensures the safety in utilization of vacuum ladle 100 and improves life-span of vacuum ladle 100.
The resistance of Elema 3 is at 2.0 Ω-2.4 Ω, and preferably, the resistance of Elema 3 is at 2.2 Ω.Further, when needs dry liner 12, two ends to Elema 3 apply 380V voltage, such as in the example of fig. 1, Elema 3 is two and each resistance is 2.2 Ω, applies the voltage of 380V to these two Elemas 3, thus make these two Elemas 3 generate heat to toast liner 12, the temperature of Elema 3 can be promoted rapidly like this, better liner 12 is toasted, ensure that the moisture in liner 12 can fully be dried.
Along with the increase of heat time, the temperature of Elema 3 raises gradually, and at 1000 DEG C, Elema 3(main component comprises SiC) can chemical reaction be there is, SiC+2O with oxygen
2→ SiO
2+ CO
2, after the moisture simultaneously in liner 12 is evaporated to steam, also can there is chemical reaction, SiC+4H with Elema 3
2o → SiO
2+ 4H
2+ CO
2, the H of generation
2also can reflect with Elema 3 after generating water with oxygen reaction, so repeatedly cause the SiO in Elema 3
2content increase, resistance slowly increases thereupon, and Elema 3 is aging gradually, causes the lost of life of Elema 3, and produce hydrogen the mechanical strength of element also can be made to reduce.
In view of this; preferably; in container cavity, nitrogen is passed into more than when the first predetermined temperature in the temperature of Elema 3; nitrogen can effectively prevent Elema 3 oxidized at 1200 DEG C; thus improve the life-span of Elema 3, reduce costs, simultaneously owing to there being the protection of nitrogen; generate hydrogen hardly in container cavity, avoid the intensity causing element owing to having hydrogen to reduce.
Further, control the temperature of Elema 3 below the second predetermined temperature, be understandable that, this second predetermined temperature is not less than the first predetermined temperature.By controlling the maximum baking temperature of Elema 3, can ensure that the water in liner 12 can fully be dried, liner 12 is without distortion simultaneously.
Wherein, in a preferred embodiment of the invention, the first predetermined temperature is approximately 1000 DEG C, and the second predetermined temperature is approximately 1200 DEG C.That is, two ends to Elema 3 apply voltage, self heater is become after Elema 3 is energized, when the temperature of Elema 3 reaches about 1000 DEG C, start to pass into nitrogen in container cavity, continue energising and make the temperature of Elema 3 continue to raise, when the temperature of Elema 3 reaches about 1200 DEG C, control the temperature remained constant of Elema 3, such as, be energized by controlling to execute such as discontinuity of alive cycle, thus keep the temperature constant of Elema 3 at about 1200 DEG C.
Like this, not only can accelerate the drying effect to liner 12, ensure that liner 12 is indeformable, improve result of use, and technological requirement liner 12 being heated to about 1100 DEG C before dress aluminium water can also be met.
It should be noted that, this first predetermined temperature can be a temperature value of contiguous 1000 DEG C, such as, be 950 DEG C.Similarly, this second predetermined temperature can be a temperature value of contiguous 1200 DEG C, and be such as 1150 DEG C, 1180 DEG C, this is all easy understand for a person skilled in the art.
As shown in Figure 2, in a preferred embodiment of the invention, vacuum ladle 100 also comprises source of the gas 4, source of the gas 4 is located in one of them of housing 1 and lid 2, for inputting nitrogen in container cavity, namely when the temperature of Elema 3 reach the first predetermined temperature value such as reach 1000 DEG C time, source of the gas 4 starts to feed nitrogen in container cavity.
In general, vacuum ladle 100 of the present invention, by arranging electric heating assembly, can have and have the following advantages: 1) heating-up temperature easily controls; 2) baking rapidly, improves baking efficiency; 3) cured effect is desirable, can ensure that the water in liner 12 is fully dried.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (4)
1. a vacuum ladle, is characterized in that, comprising:
Housing;
Lid, described lid is established on the housing and limit airtight container cavity between described lid and described housing; And
Electric heating assembly, described electric heating assembly is located in described container cavity; Electric heating assembly comprises Elema;
Described housing comprises:
Metal shell; And
Liner, described liner is located in described shell and described liner is made up of refractory material; Two ends to described Elema apply 380V voltage to toast described liner;
When the temperature of described Elema is more than the first predetermined temperature, in described container cavity, pass into nitrogen;
Control the temperature of described Elema below the second predetermined temperature;
Described first predetermined temperature is approximately 1000 DEG C, and described second predetermined temperature is approximately 1200 DEG C.
2. vacuum ladle according to claim 1, is characterized in that, the resistance of described Elema is at 2.0 Ω-2.4 Ω.
3. vacuum ladle according to claim 1, is characterized in that, described Elema is two and is arranged in series.
4. vacuum ladle according to claim 1, is characterized in that, also comprises source of the gas, and described source of the gas is located in one of them of described housing and described lid, for inputting nitrogen in described container cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210567569.7A CN102990049B (en) | 2012-12-24 | 2012-12-24 | Vacuum ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210567569.7A CN102990049B (en) | 2012-12-24 | 2012-12-24 | Vacuum ladle |
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| Publication Number | Publication Date |
|---|---|
| CN102990049A CN102990049A (en) | 2013-03-27 |
| CN102990049B true CN102990049B (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210567569.7A Active CN102990049B (en) | 2012-12-24 | 2012-12-24 | Vacuum ladle |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624244A (en) * | 2013-11-07 | 2014-03-12 | 中国铝业股份有限公司 | Method for electrolyzing out aluminum two-man ladle through baking |
| DE102022207253A1 (en) * | 2022-07-15 | 2024-01-18 | Sms Group Gmbh | Method for heating, drying and/or sintering a metallurgical vessel and arrangement therefor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1662756A1 (en) * | 1989-04-04 | 1991-07-15 | Всесоюзный научно-исследовательский проектно-технологический институт вагоностроения | Method and apparatus for drying lining of metallurgical vessels |
| JPH0542359A (en) * | 1991-08-06 | 1993-02-23 | Kobe Steel Ltd | Method for heat-drying ladle |
| JPH07251247A (en) * | 1994-03-16 | 1995-10-03 | Nippon Steel Corp | Method for drying tundish coating refractory for continuous casting |
| KR20020051477A (en) * | 2000-12-22 | 2002-06-29 | 이구택 | Electromagnetic heating apparatus for molten steel in the ladle |
| CN101289709A (en) * | 2008-05-13 | 2008-10-22 | 辛卫亚 | Liquid tundish |
| CN202106026U (en) * | 2011-06-07 | 2012-01-11 | 焦作诺尔曼炉业有限公司 | Vacuum aluminium discharging ladle inner liner |
-
2012
- 2012-12-24 CN CN201210567569.7A patent/CN102990049B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1662756A1 (en) * | 1989-04-04 | 1991-07-15 | Всесоюзный научно-исследовательский проектно-технологический институт вагоностроения | Method and apparatus for drying lining of metallurgical vessels |
| JPH0542359A (en) * | 1991-08-06 | 1993-02-23 | Kobe Steel Ltd | Method for heat-drying ladle |
| JPH07251247A (en) * | 1994-03-16 | 1995-10-03 | Nippon Steel Corp | Method for drying tundish coating refractory for continuous casting |
| KR20020051477A (en) * | 2000-12-22 | 2002-06-29 | 이구택 | Electromagnetic heating apparatus for molten steel in the ladle |
| CN101289709A (en) * | 2008-05-13 | 2008-10-22 | 辛卫亚 | Liquid tundish |
| CN202106026U (en) * | 2011-06-07 | 2012-01-11 | 焦作诺尔曼炉业有限公司 | Vacuum aluminium discharging ladle inner liner |
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| Publication number | Publication date |
|---|---|
| CN102990049A (en) | 2013-03-27 |
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| ASS | Succession or assignment of patent right |
Owner name: YUNNAN ALUMINUM ELECTROLYTIC ENERGY SAVING AND EMI Effective date: 20140813 |
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Free format text: CORRECT: ADDRESS; FROM: HONGHE HANI AND YI AUTONOMOUS PREFECTURE, YUNNAN PROVINCE TO: 654308 HONGHEHANI AND YI AUTONOMOUS PREFECTURE, YUNNAN PROVINCE |
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Effective date of registration: 20140813 Address after: 654308 Yunnan Province Honghe Hani and Yi Honghe Jianshui County Sheep Street Ling'an Town Industrial Park Applicant after: Yunnan Yunlyu Runxin Aluminum Co., Ltd. Applicant after: Yunnan Province's aluminium electroloysis energy-saving and emission-reduction Engineering Technical Research Centre Address before: Honghe Hani and Yi Autonomous Prefecture of Yunnan Honghe Jianshui County Industrial Park Applicant before: Yunnan Yunlyu Runxin Aluminum Co., Ltd. |
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