CN116100034A - Tundish device capable of heating - Google Patents

Tundish device capable of heating Download PDF

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Publication number
CN116100034A
CN116100034A CN202310065786.4A CN202310065786A CN116100034A CN 116100034 A CN116100034 A CN 116100034A CN 202310065786 A CN202310065786 A CN 202310065786A CN 116100034 A CN116100034 A CN 116100034A
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CN
China
Prior art keywords
diameter section
graphite sleeve
tundish
inner diameter
riser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310065786.4A
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Chinese (zh)
Inventor
郭韶山
顾孙望
刘伟兵
周浩
闫慧栋
顾雯
兰志超
袁浩杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongtian Shangcai Additive Manufacturing Co ltd
Original Assignee
Zhongtian Shangcai Additive Manufacturing Co ltd
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Publication date
Application filed by Zhongtian Shangcai Additive Manufacturing Co ltd filed Critical Zhongtian Shangcai Additive Manufacturing Co ltd
Priority to CN202310065786.4A priority Critical patent/CN116100034A/en
Publication of CN116100034A publication Critical patent/CN116100034A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/0836—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with electric or magnetic field or induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/0888—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

The invention discloses a tundish device capable of heating, which belongs to the technical field of metal powder preparation and aims to solve the problem that an existing discharge spout is easy to block, and the tundish device capable of heating comprises an upper ladle body (4) and a lower ladle body (33) which are arranged up and down, wherein the upper ladle body (4) comprises an upper shell (11), an upper electromagnetic induction layer, an upper graphite sleeve (31) and a riser (3), an upper induction coil (8) in the upper electromagnetic induction layer can carry out electromagnetic induction heating on the upper graphite sleeve (31), and the lower ladle body (33) comprises a lower shell (21), a lower electromagnetic induction layer, a lower graphite sleeve and a lower runner, and a lower induction coil (13) in the lower electromagnetic induction layer can carry out electromagnetic induction heating on the lower graphite sleeve. The tundish device capable of heating can continuously heat, the temperature of the tundish can be raised to be more than or equal to 1500 ℃, the problem of large temperature difference between molten steel and the tundish is solved, and the risk of atomizing eye leakage blocking is avoided.

Description

Tundish device capable of heating
Technical Field
The invention relates to the technical field of metal powder preparation, in particular to a tundish device capable of heating.
Background
In the vacuum tight coupling gas atomization technology, a large crucible is required to be adopted for smelting in the atomization process, then the large crucible is poured into a small tundish, high-pressure gas which flows into a diversion nozzle through the tundish and is finally sprayed out of a spray disc is atomized into fine powder, molten metal (such as molten steel) flows out of the nozzle and then fully contacts with high-pressure inert gas, the ratio of the discharged molten steel to the gas is considered at the moment of contact, the outflow speed of the molten steel is relatively high when the ratio is too high, namely, the more molten steel flows out per unit time, at the moment, the temperature of the molten steel is possibly too high, the burning loss degree of materials is greatly increased when the temperature is too high, the quality of a product is abnormal, meanwhile, a certain amount of black particle product is also generated, the molten steel cannot completely flow out of the nozzle when the ratio is too low, the molten steel at the nozzle is blocked, the risk of caking is caused, the molten steel at the position of the nozzle is greatly increased, the efficiency of the atomization production process is greatly reduced, and the waste of furnace metal raw materials is more serious, and the subsequent treatment is difficult.
The root cause of the leakage nozzle blocking the molten steel flow is that the temperature of the leakage nozzle heated by the tundish system is too low, the molten metal is quickly cooled after entering the tundish system, and finally the molten metal is solidified and blocked at the minimum diameter of the flow guide nozzle. At present, the researches on the structural design and the heat preservation capability of the tundish device are less, the temperature of the tundish is kept in a low-temperature state, the temperature of molten steel smelted by a crucible is continuously increased, the temperature of molten steel in the smelted crucible is greatly reduced due to the huge temperature difference, and finally, only a small discharge spout matched with a high smelting temperature or a relatively large discharge spout matched with a low temperature can be adopted to ensure smooth atomization, but the yield of the produced fine powder is reduced, the cost is uncontrollable, the stability of the tundish device is relatively poor, the risk of steel leakage is often caused in the heating process, the consumable cost is also increased, the alloy with impurities cannot be effectively filtered, the impurities enter the discharge spout to be blocked, and the atomization is terminated.
Disclosure of Invention
In order to solve the problem that the discharge spout is easy to block, the invention provides the tundish device capable of heating, the tundish device capable of heating can continuously heat, the temperature of the tundish can be raised to be more than or equal to 1500 ℃, the problem that the temperature difference between molten steel and the tundish is large is solved, and the risk of atomizing and hole leakage blocking is avoided.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a tundish device that can heat, includes upper and lower inclusion that sets up from top to bottom, upper inclusion contains the last casing, upward electromagnetic induction layer, upward graphite cover and the rising head that cover in proper order from outside to inside along the horizontal direction, upward contain induction coil in the electromagnetic induction layer, upward induction coil can carry out electromagnetic induction heating to last graphite cover, lower inclusion contains down casing, lower electromagnetic induction layer, lower graphite cover and the runner of cover in proper order from outside to inside along the horizontal direction, contain induction coil down in the electromagnetic induction layer, lower induction coil can be right lower graphite cover carries out electromagnetic induction heating, the runner contains the middle package and the discharge spout of connecting from top to bottom.
The beneficial effects of the invention are as follows: the tundish device capable of heating can continuously heat, the temperature of the tundish can be raised to be more than or equal to 1500 ℃, the problem of large temperature difference between molten steel and the tundish is solved, and the risk of atomizing eye leakage blocking is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
Fig. 1 is a schematic front view of a heatable tundish apparatus according to the invention.
Fig. 2 is a schematic cross-sectional view of a heatable tundish apparatus according to the invention.
Fig. 3 is a schematic view of the right-hand portion of fig. 2.
Fig. 4 is a schematic view of a riser.
Fig. 5 is a schematic view of the lower graphite sleeve.
The reference numerals are explained as follows:
1. a middle filter sheet; 2. a filter sheet is arranged on the upper filter sheet; 3. riser; 4. an upper bag body; 5. an upper cover plate; 6. a fireproof cotton layer is arranged on the upper part; 7. an inner cover plate; 8. an upper induction coil; 9. an upper coil joint; 10. magnesia sand; 11. an upper housing; 12. a lower refractory cotton layer; 13. a lower induction coil; 14. a support plate; 15. a spray plate; 16. a discharge spout; 17. a tundish; 18. a graphite inner sleeve; 19. a graphite jacket; 20. a lower heat-insulating cotton layer; 21. a lower housing; 22. a lower copper plate; 23. a heat insulating plate; 24. copper plate coating; 25. a lower cover plate; 26. a middle partition plate; 27. a lower filter sheet; 28. a spiral flow passage; 29. a magnesium sand block layer; 30. a heat preservation cotton layer is arranged on the upper part; 31. a graphite sleeve is arranged; 32. a side filter sheet; 33. discharging the bag body; 34. an inner blind hole flow passage; 35. a lower coil joint;
301. a first inner diameter section; 302. a second inner diameter section; 303. a third inner diameter section; 304. a fourth inner diameter section; 305. a first annular transition surface; 306. a second annular transition surface; 307. a third annular transition surface; 308. a first outer diameter section; 309. a second outer diameter section; 3010. a third outer diameter section;
1801. the upper section of the graphite inner sleeve; 1802. the lower section of the graphite inner sleeve;
1901. the upper section of the graphite jacket; 1902. the lower section of the graphite jacket.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
The utility model provides a tundish device that can heat, tundish device that can heat includes upper and lower inclusion 4 and lower inclusion 33 that set up from top to bottom, and upper inclusion 4 contains upper casing 11, upper electromagnetic induction layer, upper graphite cover 31 and riser 3 that cover in proper order from outside to inside along the horizontal direction, upper electromagnetic induction layer contains upper induction coil 8, and upper induction coil 8 can carry out electromagnetic induction heating to upper graphite cover 31, and lower inclusion 33 contains lower casing 21, lower electromagnetic induction layer, lower graphite cover and the runner of cover in proper order from outside to inside along the horizontal direction, contain lower induction coil 13 in the lower electromagnetic induction layer, lower induction coil 13 can be right lower graphite cover carries out electromagnetic induction heating, lower runner contains tundish 17 and the discharge spout 16 of connecting from top to bottom, as shown in fig. 1 to 3.
In this embodiment, the riser 3 has an upright cylindrical structure, the riser 3 has an inner channel and a side wall that are disposed inside and outside, the inner surface of the riser 3 has a first inner diameter section 301, a second inner diameter section 302, a third inner diameter section 303 and a fourth inner diameter section 304 that are disposed in sequence from top to bottom, and the first inner diameter section 301, the second inner diameter section 302 and the third inner diameter section 303 are all in a truncated cone structure with top ends facing down and bottom ends facing up.
The axis of the first inner diameter section 301, the axis of the second inner diameter section 302, the axis of the third inner diameter section 303 and the axis of the fourth inner diameter section 304 are coincident, the inner diameter of the lower end of the first inner diameter section 301 is larger than the inner diameter of the upper end of the second inner diameter section 302, the inner diameter of the lower end of the second inner diameter section 302 is larger than the inner diameter of the upper end of the third inner diameter section 303, the inner diameter of the lower end of the third inner diameter section 303 is larger than the inner diameter of the upper end of the fourth inner diameter section 304, and the cylindrical structure of the fourth inner diameter section 304 is as shown in fig. 3 to 4.
In this embodiment, the taper of the first inner diameter section 301, the taper of the second inner diameter section 302, and the taper of the third inner diameter section 303 are substantially the same, a first annular transition surface 305 is formed between the first inner diameter section 301 and the second inner diameter section 302, the second inner diameter section 302 and the third inner diameter section 303 form a second annular transition surface 306, and the third inner diameter section 303 and the fourth inner diameter section 304 form a third annular transition surface 307.
In this embodiment, an upper filter sheet 2, a middle filter sheet 1 and a lower filter sheet 27 are disposed in the internal channel of the riser 3, the upper filter sheet 2 is connected with the first annular transition surface 305 in a vertically stacked manner, the diameter of the upper filter sheet 2 is equal to the outer diameter of the first annular transition surface 305, the middle filter sheet 1 is connected with the second annular transition surface 306 in a vertically stacked manner, the diameter of the middle filter sheet 1 is equal to the outer diameter of the second annular transition surface 306, the lower filter sheet 27 is connected with the third annular transition surface 307 in a vertically stacked manner, and the diameter of the lower filter sheet 27 is equal to the outer diameter of the third annular transition surface 307.
In this embodiment, a spiral runner 28 is disposed in a side wall of the riser 3, the spiral runner 28 is sleeved outside an inner channel of the riser 3, an upper end of the spiral runner 28 is an inlet end, an upper end of the spiral runner 28 is located in the first annular transition surface 305, a lower end of the spiral runner 28 is an outlet end, a lower end of the spiral runner 28 is located on a lower surface of the riser 3, both the lower end of the spiral runner 28 and the lower end of the inner channel of the riser 3 correspond to an upper end of the tundish 17, and liquid discharged from the spiral runner 28 and the inner channel of the riser 3 can enter the tundish 17.
In this embodiment, a plurality of (e.g. four to six) inner blind hole runners 34 are further disposed in the side wall of the riser 3, the plurality of inner blind hole runners 34 are uniformly arranged at intervals along the circumferential direction of the riser 3, the inner blind hole runners 34 extend along the diameter direction of the riser 3, the inlet end of the inner blind hole runner 34 is located at the third inner diameter section 303, the inlet end of the inner blind hole runner 34 is provided with a side filter 32, the spiral runner 28 passes through the inner blind hole runner 34, the spiral runner 28 is communicated with the inner blind hole runners 34, and the liquid in the inner channel of the riser 3 can be discharged from the lower end of the spiral runner 28 after sequentially passing through the inner blind hole runners 34 and the spiral runner 28, as shown in fig. 3 and 4.
In this embodiment, the outer surface of the riser 3 includes a first outer diameter section 308, a second outer diameter section 309 and a third outer diameter section 3010 sequentially set from top to bottom, the diameter of the first outer diameter section 308 is smaller than that of the second outer diameter section 309, the diameter of the second outer diameter section 309 is smaller than that of the third outer diameter section 3010, the upper graphite sleeve 31 is sleeved outside the first outer diameter section 308 and the second outer diameter section 309 in a matched manner, the outer diameter of the upper graphite sleeve 31 is equal to that of the third outer diameter section 3010, an upper heat insulation cotton layer 30 is sleeved between the upper electromagnetic induction layer and the upper graphite sleeve 31, the upper end of the upper heat insulation cotton layer 30 is flush with the upper end of the upper graphite sleeve 31, the lower end of the upper heat insulation cotton layer 30 is flush with the lower end of the third outer diameter section 3010, the upper electromagnetic induction layer also includes magnesia 10, and the upper induction coil 8 is a double-turn water-cooled coil.
The upper induction coil 8 is an existing double-turn water-cooling coil, cooling water can be communicated with the inside of the upper induction coil 8, and the outside of the upper induction coil 8 is electrified without mutual interference. The upper induction coil 8 is connected with an upper coil joint 9, and the upper coil joint 9 is positioned outside the upper shell 11. The heating power of the upper induction coil 8 may be 50Kw-60Kw, for example, the heating power of the upper induction coil 8 may be 55Kw.
In this embodiment, the upper end of the upper bag body 4 is provided with an annular upper cover plate 5, along the diameter direction of the upper cover plate 5, the outer side of the upper cover plate 5 is fixedly connected with the upper end of the upper shell 11, the inner side of the upper cover plate 5 is fixedly connected with the upper end of the riser 3, an annular inner cover plate 7 is arranged between the upper cover plate 5 and the upper graphite sleeve 31, the inner diameter of the inner cover plate 7 is slightly larger than the inner diameter of the upper end of the upper graphite sleeve 31, the outer diameter of the inner cover plate 7 is larger than the outer diameter of the upper insulation cotton layer 30, an upper refractory cotton layer 6 is arranged between the inner cover plate 7 and the upper graphite sleeve 31, an annular middle partition 26 is arranged between the upper bag body 4 and the lower bag body 33, and a lower refractory cotton layer 12 is arranged between the riser 3 and the middle partition 26.
In this embodiment, the lower graphite sleeve includes an inner sleeve and an outer sleeve 18 and 19, the inner surface of the inner sleeve 18 includes an upper graphite sleeve section 1801 and a lower graphite sleeve section 1802 which are disposed up and down, the upper graphite sleeve section 1801 is connected with the outer surface of the middle bag 17 in a matching manner, the lower graphite sleeve section 1802 is connected with the middle and upper outer surfaces of the discharge spouts 16 in a matching manner, the inner surface of the outer sleeve 19 includes an upper graphite sleeve section 1901 and a lower graphite sleeve section 1902 which are disposed up and down, the upper graphite sleeve section 1901 is connected with the outer surface of the inner sleeve 18 in a matching manner, the lower graphite sleeve section 1902 is connected with the lower outer surface of the discharge spouts 16 in a matching manner, the lower end of the lower bag body 33 is provided with a support plate 14, the discharge spouts 16 penetrate through the support plate 14, the lower end of the discharge spouts 16 is disposed below the support plate 14, the lower end of the discharge spouts 16 is sleeved with a spout 15, and the support plate 14 is connected with the spout 15 in a matching manner, as shown in fig. 3 and 5.
In this embodiment, the lower electromagnetic induction layer and the lower graphite sleeve have the magnesium sand block layer 29 and the lower heat insulation cotton layer 20 sleeved inside and outside, the lower electromagnetic induction layer also has the magnesium sand 10, the lower induction coil 13 is a double-turn water-cooled coil, the upper end of the lower bag body 33 is internally provided with an annular lower cover plate 25, along the diameter direction of the lower cover plate 25, the inner side of the lower cover plate 25 is connected with the upper end of the tundish 17, the lower cover plate 25 and the lower graphite sleeve have the lower copper plate 22, the heat insulation plate 23 and the upper copper plate 24 which are sequentially connected in a stacked manner from bottom to top, the lower copper plate 22, the heat insulation plate 23 and the upper copper plate 24 are all annular, the outer diameter of the lower copper plate 22, the outer diameter of the heat insulation plate 23 and the outer diameter of the upper copper plate 24 are all greater than the outer diameter of the lower heat insulation cotton layer 20, and the outer diameter of the lower cover plate 25, the outer diameter of the lower copper plate 22, the outer diameter of the heat insulation plate 23 and the outer diameter of the upper copper plate 24 are the same, as shown in fig. 1 to 3.
The lower induction coil 13 is an existing double-turn water-cooled coil, cooling water can be communicated with the inside of the lower induction coil 13, and the outside of the lower induction coil 13 is electrified without mutual interference. The lower induction coil 13 is connected with a lower coil joint 35, and the lower coil joint 35 is located outside the lower housing 21. The heating power of the lower induction coil 13 may be 60Kw-70Kw, for example, the heating power of the lower induction coil 13 may be 65Kw.
In this embodiment, the upper bag body 4 and the lower bag body 33 are divided by the middle partition plate 26, the riser 3, the middle partition plate 26 and the lower cover plate 25 are sequentially stacked from top to bottom, the upper end of the riser 3 is the inlet end of the middle bag device capable of heating, the lower end of the discharge spout 16 is the outlet end of the middle bag device capable of heating, and liquid can be discharged from the lower end of the discharge spout 16 after entering from the upper end of the riser 3, passing through the riser 3, the middle bag 17 and the discharge spout 16, and gaps between the middle bag 17 and the discharge spout 16 are combined by adopting refractory mortar materials, so that the tight combination of the middle bag 17 and the discharge spout 16 is realized.
The operation of the heatable tundish means is described below.
The upper coil joint 9 and the lower coil joint 35 are connected with high-frequency electricity, the lower induction coil 13 carries out induction heating on the graphite inner sleeve 18 and the graphite outer sleeve 19, the upper induction coil 8 carries out induction heating on the upper graphite sleeve 31, the graphite outer sleeve 19 can realize continuous heating on the lower part of the discharge spout 16, and the inner diameter of the lower end of the discharge spout 16 is phi 4mm. The graphite inner jacket 18 may be continuously heated with respect to the tundish 17. After molten steel in the melting crucible is melted, the temperature of the tundish 17 and the temperature of the discharge spout 16 are respectively measured by using an infrared thermometer, wherein the temperature of the tundish is 1538 ℃, and the temperature of the discharge spout is 1480 ℃. After the temperature of the molten steel reaches the technological requirement, a fan and atomizing gas are started to atomize, the molten steel is poured into the tundish device capable of heating from the upper end of the riser 3, the molten steel is sprayed out from the lower end of the discharge spout 16, the operation is repeatedly performed until the molten steel in the crucible is completely atomized, the power supply is turned off, and the powder is waited for cooling.
Wherein after entering the heatable tundish means from the upper end of the riser 3, the molten steel first enters the internal passage of the riser 3, a first portion (major part) of the molten steel enters from the upper end of the internal passage of the riser 3 and exits from the lower end of said internal passage, a second portion of the molten steel enters from the upper end of the spiral runner 28 and exits from the lower end of the spiral runner 28, and a third portion of the molten steel enters from the inlet end of the blind-bore flow channel 34 and exits from the lower end of the spiral runner 28. All molten steel discharged from the riser 3 enters a tundish 17, all molten steel in the tundish 17 enters a discharge spout 16, and all molten steel is discharged from the lower end of the discharge spout 16, as shown in fig. 1 to 3.
The tundish device capable of heating is independent in structure, simple to install and detach and simple to replace accessories. The upper, middle, lower and side filter plates are arranged, molten steel finally flows into the discharge spout through the filter plates, the filter plates are replaceable, the problem that impurities enter the discharge spout to be blocked is solved, and atomization is stabilized. The temperature of the molten steel can be reduced by 50-100 ℃ on the original basis due to the temperature rise of the heatable tundish device, the influence of high temperature on element burning is avoided, and the product quality is improved.
The foregoing description of the embodiments of the invention is not intended to limit the scope of the invention, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the invention shall fall within the scope of the patent. In addition, the technical features and technical features, technical features and technical scheme, technical scheme and technical scheme, and embodiments of the invention can be freely combined for use.

Claims (10)

1. The utility model provides a tundish device that can heat, its characterized in that, tundish device that can heat includes upper bag body (4) and lower bag body (33) that set up from top to bottom, and upper bag body (4) contain along the horizontal direction from outside-in cover in proper order and establish last casing (11), upper electromagnetic induction layer, upper graphite cover (31) and riser (3), upward contain in the electromagnetic induction layer induction coil (8), upward induction coil (8) can carry out electromagnetic induction heating to upper graphite cover (31), lower bag body (33) contain along the horizontal direction from outside-in cover in proper order lower casing (21), lower electromagnetic induction layer, lower graphite cover and runner down, contain in the electromagnetic induction layer down induction coil (13), lower induction coil (13) can be right lower graphite cover carries out electromagnetic induction heating, runner down contains tundish (17) and discharge spout (16) of connecting from top to bottom.
2. The tundish device capable of being heated according to claim 1, wherein the riser (3) is of an upright cylindrical structure, the riser (3) comprises an inner channel and a side wall which are arranged inside and outside, the inner surface of the riser (3) comprises a first inner diameter section (301), a second inner diameter section (302), a third inner diameter section (303) and a fourth inner diameter section (304) which are sequentially arranged from top to bottom, the first inner diameter section (301), the second inner diameter section (302) and the third inner diameter section (303) are of conical frustum structures with top ends facing downwards and bottom ends facing upwards, and the inner diameter of the lower end of the third inner diameter section (303) is larger than the inner diameter of the upper end of the fourth inner diameter section (304).
3. A heatable tundish means according to claim 2, characterized in that a first annular transition surface (305) is formed between the first inner diameter section (301) and the second inner diameter section (302), the second inner diameter section (302) and the third inner diameter section (303) form a second annular transition surface (306), and the third inner diameter section (303) and the fourth inner diameter section (304) form a third annular transition surface (307).
4. A heatable tundish means according to claim 3, characterized in that an upper filter plate (2), a middle filter plate (1) and a lower filter plate (27) are arranged in the inner channel of the riser (3), the upper filter plate (2) being connected in a vertically stacked manner to the first annular transition surface (305), the middle filter plate (1) being connected in a vertically stacked manner to the second annular transition surface (306), the lower filter plate (27) being connected in a vertically stacked manner to the third annular transition surface (307).
5. A tundish means according to claim 3, characterized in that a spiral runner (28) is provided in the side wall of the riser (3), the spiral runner (28) is arranged outside the internal passage of the riser (3), the upper end of the spiral runner (28) is located on the first annular transition surface (305), the lower end of the spiral runner (28) is located on the lower surface of the riser (3), and the lower ends of the spiral runner (28) and the internal passage of the riser (3) both correspond to the upper end of the tundish (17).
6. The heatable tundish device according to claim 5, characterized in that a plurality of inner blind hole runners (34) are further provided in the side wall of the riser (3), the inner blind hole runners (34) extend in the diameter direction of the riser (3), the inlet end of the inner blind hole runners (34) is located in the third inner diameter section (303), the inlet end of the inner blind hole runners (34) is provided with a side filter (32), and the spiral runners (28) are communicated with the inner blind hole runners (34).
7. The tundish device capable of being heated according to claim 2, wherein the outer surface of the riser (3) comprises a first outer diameter section (308), a second outer diameter section (309) and a third outer diameter section (3010) which are sequentially arranged from top to bottom, the upper graphite sleeve (31) is sleeved outside the first outer diameter section (308) and the second outer diameter section (309) in a matched mode, the outer diameter of the upper graphite sleeve (31) is equal to the outer diameter of the third outer diameter section (3010), an upper heat-insulating cotton layer (30) is sleeved between the upper electromagnetic induction layer and the upper graphite sleeve (31), the upper end of the upper heat-insulating cotton layer (30) is flush with the upper end of the upper graphite sleeve (31), the lower end of the upper heat-insulating cotton layer (30) is flush with the lower end of the third outer diameter section (3010), magnesia (10) is further contained in the upper electromagnetic induction layer, and the upper induction coil (8) is a double-turn water-cooling coil.
8. The tundish device capable of being heated according to claim 7, characterized in that an annular upper cover plate (5) is arranged at the upper end of the upper ladle body (4), the outer side of the upper cover plate (5) is connected with the upper end of the upper casing (11), the inner side of the upper cover plate (5) is connected with the upper end of the riser (3), an annular inner cover plate (7) is arranged between the upper cover plate (5) and the upper graphite sleeve (31), the inner diameter of the inner cover plate (7) is larger than the inner diameter of the upper end of the upper graphite sleeve (31), the outer diameter of the inner cover plate (7) is larger than the outer diameter of the upper heat insulation cotton layer (30), an upper fireproof cotton layer (6) is arranged between the inner cover plate (7) and the upper graphite sleeve (31), an annular middle partition plate (26) of the ladle body is arranged between the upper ladle body (4) and the lower ladle body (33), and a lower fireproof cotton layer (12) is arranged between the riser (3) and the middle partition plate (26).
9. The tundish device capable of being heated according to claim 1, wherein the lower graphite sleeve comprises an inner sleeve body (18) and a graphite sleeve body (19) which are sleeved on the inner sleeve body, the inner surface of the graphite sleeve body (18) comprises an upper graphite sleeve section (1801) and a lower graphite sleeve section (1802) which are arranged up and down, the upper graphite sleeve section (1801) is connected with the outer surface of the tundish (17) in a matched mode, the lower graphite sleeve section (1802) is connected with the middle part and the outer surface of the upper part of the discharge spout (16) in a matched mode, the inner surface of the graphite sleeve body (19) comprises an upper graphite sleeve section (1901) and a lower graphite sleeve section (1902) which are arranged up and down, the upper graphite sleeve section (1901) is connected with the outer surface of the graphite sleeve body (18) in a matched mode, the lower graphite sleeve section (1902) is connected with the outer surface of the lower part of the discharge spout (16) in a matched mode, the lower end of the lower graphite sleeve (33) is provided with a supporting plate (14), the discharge spout (16) penetrates through the supporting plate (14), and the lower end of the discharge spout (16) is sleeved with a bag body (15).
10. The tundish device capable of heating according to claim 9, wherein a magnesia block layer (29) and a lower heat insulation cotton layer (20) are arranged between the lower electromagnetic induction layer and the lower graphite sleeve in an sleeved mode, magnesia (10) is further arranged in the lower electromagnetic induction layer, the lower induction coil (13) is a double-turn water-cooled coil, a lower cover plate (25) is arranged in the upper end of the lower ladle body (33), the inner side of the lower cover plate (25) is connected with the upper end of the tundish (17), a lower copper plate (22), a heat insulation plate (23) and an upper copper plate (24) are sequentially connected between the lower cover plate (25) and the lower graphite sleeve in a stacked mode from bottom to top, the lower copper plate (22), the heat insulation plate (23) and the upper copper plate (24) are all annular, and the outer diameter of the lower copper plate (22), the outer diameter of the heat insulation plate (23) and the outer diameter of the upper copper plate (24) are all larger than the outer diameter of the lower heat insulation cotton layer (20).
CN202310065786.4A 2023-01-18 2023-01-18 Tundish device capable of heating Pending CN116100034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310065786.4A CN116100034A (en) 2023-01-18 2023-01-18 Tundish device capable of heating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310065786.4A CN116100034A (en) 2023-01-18 2023-01-18 Tundish device capable of heating

Publications (1)

Publication Number Publication Date
CN116100034A true CN116100034A (en) 2023-05-12

Family

ID=86255712

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310065786.4A Pending CN116100034A (en) 2023-01-18 2023-01-18 Tundish device capable of heating

Country Status (1)

Country Link
CN (1) CN116100034A (en)

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