CN213977771U - Steel ladle ferrotitanium adding device - Google Patents
Steel ladle ferrotitanium adding device Download PDFInfo
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- CN213977771U CN213977771U CN202023056105.9U CN202023056105U CN213977771U CN 213977771 U CN213977771 U CN 213977771U CN 202023056105 U CN202023056105 U CN 202023056105U CN 213977771 U CN213977771 U CN 213977771U
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- ladle
- pipe
- ferrotitanium
- steel
- feeding
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0006—Adding metallic additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0068—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by introducing material into a current of streaming metal
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Multimedia (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model discloses a device is added to ladle ferrotitanium, its characterized in that: the device comprises a furnace rear platform, a feeding mechanism for adding ferrotitanium, a ladle, a buggy ladle and a track, wherein the buggy ladle is arranged on the track and runs along the track, the ladle is placed on the buggy ladle, the furnace rear platform is positioned above the buggy ladle, and the feeding mechanism is arranged on the furnace rear platform. A ladle, a ladle car and a track are arranged below the platform behind the furnace, the ladle car runs on the track, and the ladle car is loaded with a ladle. The rear platform of the furnace is provided with an observation hole and a feeding mechanism, so that the ladle car can be conveniently and accurately positioned, and the rear platform of the furnace has a certain fall with the liquid level of the ladle. The bottom of the ladle is provided with an argon blowing hole, and argon enters the ladle through the argon blowing hole to form argon bubbles. The furnace rear platform is provided with a feeding observation hole, one end of the feeding mechanism is connected to the furnace rear platform, the other end of the feeding mechanism penetrates through the feeding observation hole to be communicated with the steel ladle, and the lowest end of the feeding mechanism is higher than the liquid level of molten steel in the steel ladle.
Description
Technical Field
The utility model belongs to the technical field of the metallurgy, concretely relates to device is added to ladle ferrotitanium.
Background
Generally, metal titanium (Ti) forms very stable TiN at high temperature, and fine and dispersed Ti (C, N) compounds precipitated at high temperature can inhibit the growth of high-temperature austenite grains in the heating process before hot working, so that the function of refining the grains is stronger. Compared with niobium (Nb) and vanadium (V), titanium (Ti) is a cheap element, and not only grains are refined in steel to improve strength and elongation performance, but also aging sensitivity and cold brittleness are reduced, and welding performance is improved. Particularly, in the production of new standard deformed steel bars, titanium (Ti) is adopted to replace noble V, Nb element for micro-alloying so as to meet the requirements of the strength and the metallographic structure of the steel bars, and under the condition of not passing through an LF furnace refining process, the cost of adding Ti in the steel is 100 yuan lower than that of adding V, Nb, so that the manufacturing cost of production enterprises can be greatly reduced; however, the chemical property of Ti element is very active, titanium contacts with slag liquid to generate chemical reaction in the process of adding ferrotitanium into a ladle, so that the loss of titanium is caused, particularly, under the condition of non-LF refining, the yield of Ti is low and unstable, the pourability of molten steel is poor, the production is difficult to control, and the development of titanium microalloying technology is limited.
Therefore, a ladle ferrotitanium adding device which does not pass through an LF furnace refining process is explored to reduce the loss of titanium and improve the yield of titanium, and the ladle ferrotitanium adding device has practical significance for promoting the development of square billet titanium microalloying technology, reducing the production cost of enterprises, improving the market competitiveness and the like.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the prior art, the utility model aims to provide a device is added to ladle ferrotitanium, through molten steel oxygen content in the control ladle, control ferrotitanium adds the time point, the joining mode, strengthens continuous casting's protection pouring to stabilize the recovery of titanium, improve the yield of titanium, realize containing Ti steel type smelting, continuous casting stable production, especially in new standard screw-thread steel production, can realize adopting Ti to replace precious V, Nb element to carry out microalloying and reach reinforcing bar intensity requirement and metallographic structure requirement.
In order to achieve the above purpose, the technical scheme of the utility model is that: a steel ladle ferrotitanium adding device is characterized in that: the steel ladle car is arranged on the rail and runs along the rail, the steel ladle is placed on the steel ladle car, the furnace rear platform is positioned above the steel ladle car, the feeding mechanism is arranged on the furnace rear platform, and the furnace rear platform is made of steel materials.
Furthermore, a feeding observation hole is formed in the furnace rear platform, one end of the feeding mechanism is connected to the furnace rear platform, the other end of the feeding mechanism penetrates through the feeding observation hole to be communicated with the steel ladle, and the lowest end of the feeding mechanism is higher than the liquid level of molten steel in the steel ladle.
Furthermore, the feeding mechanism comprises a support and a feeding pipe, the feeding pipe is connected to the furnace rear platform through the support, one end of the feeding pipe is located above the furnace rear platform, the other end of the feeding pipe penetrates through the feeding observation hole to be communicated with the steel ladle, and the ferrotitanium is added into the steel ladle through the feeding pipe.
Furthermore, the charging pipe comprises a receiving pipe, a material sliding inclined pipe and a vertical charging pipe, one end of the material sliding inclined pipe is communicated with the receiving pipe, the other end of the material sliding inclined pipe is communicated with the vertical charging pipe, the other end of the vertical charging pipe is communicated with the steel ladle, and ferrotitanium is added from the receiving pipe and enters the steel ladle through the material sliding inclined pipe and the vertical charging pipe.
Furthermore, one end of the support is connected to the furnace rear platform, and the other end of the support is connected to the material sliding inclined tube and used for supporting the feeding tube.
Furthermore, the receiving pipe is a round pipe with a large caliber, the material sliding inclined pipe is a horn-shaped round pipe, the vertical feeding pipe is a round pipe with a small caliber, the bottom end of the vertical feeding pipe is higher than the liquid level of the molten steel in the steel ladle, and the vertical feeding pipe is aligned to the exposed area of the argon-blowing molten steel of the steel ladle.
Furthermore, the ladle ferrotitanium adding device also comprises a converter and an argon blowing station, after the converter is smelted to reach the tapping condition, the converter is rotated to incline, the molten steel is added into a ladle below a converter platform through a converter tapping hole, the ladle is transported through a ladle car, alloy is added into the ladle at the converter platform, the alloy in the ladle is finely adjusted at the argon blowing station, the specific fine adjustment condition is determined according to the component condition of the molten steel, ferrotitanium is added into the ladle at the platform behind the converter, the argon blowing station is communicated with the ladle through an argon blowing pipeline, and the argon blowing station blows argon to the molten steel in the ladle through the argon blowing pipeline in the whole tapping process and the ladle transportation process.
Adopt the utility model discloses technical scheme's advantage does:
1. the utility model provides a pair of ladle ferrotitanium adds device, through molten steel oxygen content in the control ladle, control ferrotitanium adds time point, joining mode, strengthens continuous casting's protection pouring to stabilize the recovery of titanium, improve the yield of titanium, realize containing that Ti steel type is smelted, continuous casting stable production, especially in new standard deformed steel bar production, can realize adopting titanium (Ti) to replace precious V, Nb element to carry out microalloying and reach reinforcing bar intensity requirement and metallographic structure requirement.
2. The utility model has the advantages that the observation hole and the feeding mechanism are arranged on the rear platform of the furnace, which is convenient for accurate positioning of the ladle, ferrotitanium is vertically added into the exposed area of argon-blown molten steel of the ladle, thereby reducing the loss of titanium and improving the yield of titanium; compared with the prior art, the method has the advantages that: the vertical feeding pipe of the feeding mechanism directly faces to a molten steel exposed area blown away by argon, and ferrotitanium can be directly added into the deep part of the molten steel under the action of larger gravitational potential energy through the receiving pipe, the material sliding inclined pipe and the vertical feeding pipe of the feeding mechanism without contacting with steel slag, so that titanium is less in burning loss and oxidation, and the titanium recovery rate is high.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic view of the general process plan layout of the ladle ferrotitanium charging device of the utility model in use;
FIG. 2 is a schematic front view of the ladle ferrotitanium adding device of the present invention;
fig. 3 is a schematic plan view of the ladle ferrotitanium adding device of the present invention.
The labels in the above figures are respectively: 1. a converter; 2. a ladle; 3. carrying out buggy ladle; 4. a track; 5. a furnace rear platform; 6. a charging observation hole of a platform behind the furnace; 7. a feeding mechanism; 71. a support; 72. a receiving pipe; 73. a material sliding inclined tube; 74. a vertical feed tube; 8. and (5) an argon blowing station.
Detailed Description
In the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "plane direction", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
As shown in fig. 1 to 3, the steel ladle ferrotitanium adding device is characterized in that: the device comprises a furnace rear platform 5, a feeding mechanism 7 for adding ferrotitanium, a ladle 2, a buggy ladle 3 and a track 4, wherein the buggy ladle 3 is arranged on the track 4 and runs along the track 4, the ladle 2 is placed on the buggy ladle 3, the furnace rear platform 5 is positioned above the buggy ladle 3, the feeding mechanism 7 is arranged on the furnace rear platform 5, and the furnace rear platform 5 is made of steel materials. A ladle, a ladle car and a track are arranged below the platform behind the furnace, the ladle car runs on the track, and the ladle car is loaded with a ladle. The rear platform of the furnace is provided with an observation hole and a feeding mechanism, so that the ladle car can be conveniently and accurately positioned, and the rear platform of the furnace has a certain fall with the liquid level of the ladle. The bottom of the ladle is provided with an argon blowing hole 11, and argon enters the ladle 2 through the argon blowing hole 11 to form argon bubbles 12. The argon blowing station 8 is communicated with an argon blowing hole 11 at the bottom of the ladle 2 through an argon blowing pipeline.
The rear platform 5 is provided with a feeding observation hole 6, one end of a feeding mechanism 7 is connected to the rear platform 5, the other end of the feeding mechanism 7 penetrates through the feeding observation hole 6 to be communicated with the steel ladle 2, and the lowest end of the feeding mechanism 7 is higher than the liquid level of the molten steel in the steel ladle 2.
The feeding mechanism 7 comprises a support 71 and a feeding pipe, the feeding pipe is connected to the furnace rear platform 5 through the support 71, one end of the feeding pipe is located above the furnace rear platform 5, the other end of the feeding pipe penetrates through the feeding observation hole 6 to be communicated with the steel ladle 2, and ferrotitanium is added into the steel ladle 2 through the feeding pipe.
The charging tube comprises a receiving tube 72, a material sliding inclined tube 73 and a vertical charging tube 74, one end of the material sliding inclined tube 73 is communicated with the receiving tube 72, the other end of the material sliding inclined tube 73 is communicated with the vertical charging tube 74, the other end of the vertical charging tube 74 is communicated with the steel ladle 2, ferrotitanium is added from the receiving tube 72 and enters the steel ladle 2 through the material sliding inclined tube 73 and the vertical charging tube 74, one end of a support 71 is connected to the platform 5 behind the furnace, and the other end of the support 71 is connected to the material sliding inclined tube 73 and used for supporting the charging tube.
Preferably, the receiving pipe 72 is a large-caliber circular pipe, the material sliding inclined pipe 73 is a horn-shaped circular pipe, the vertical feeding pipe 74 is a small-caliber circular pipe, the bottom end of the vertical feeding pipe 74 is higher than the liquid level of the molten steel in the ladle 2, and the vertical feeding pipe 74 is aligned to the argon-blowing molten steel exposed area of the ladle.
The ladle ferrotitanium adding device also comprises a converter 1 and an argon blowing station 8, after the converter 1 is smelted to reach the tapping condition, the converter 1 is rotated to incline, the molten steel is added into a ladle 2 below a converter platform through a converter tapping hole, the ladle 2 is transported through a ladle car 3, alloy is added into the ladle 2 at the converter platform, the alloy in the ladle 2 is finely adjusted at the argon blowing station 8, and specifically, a proper amount of alloy is added into the ladle 2 for component fine adjustment according to the component condition of the molten steel at the argon blowing station 8; ferrotitanium is added into the ladle 2 at the platform behind the furnace, the argon blowing station 8 is communicated with the ladle 2 through an argon blowing pipeline, and the argon blowing station 8 blows argon to the molten steel in the ladle through the argon blowing pipeline in the whole tapping process and the ladle transferring process.
The utility model discloses ladle ferrotitanium adds device's theory of operation does: after the converter finishes converting and reaches the tapping condition, rotating the converter to incline, adding molten steel into a ladle below a converter platform through a converter tapping hole, and enabling the ladle to be located on a ladle car which runs on a track; when tapping reaches one fourth of the molten steel in a furnace, adding corresponding alloy to perform molten steel deoxidation and alloying, after tapping, moving a ladle to an argon blowing station along with a ladle car through a track, and during the tapping and ladle operation processes, continuously blowing argon from the bottom of the ladle to fully dissolve the alloy in the molten steel and preliminarily uniformizing the components and the temperature of the molten steel. Continuously blowing argon at the bottom of the ladle in an argon blowing station to further homogenize the components and the temperature, and finely adjusting the components and the temperature; when the ladle enters an argon blowing station, firstly measuring the temperature of molten steel and sampling for component analysis, adjusting the flow and the temperature of argon blowing at the bottom of the ladle according to the condition of the temperature measurement, adding a proper amount of alloy according to the detected component condition for component fine adjustment, when the temperature meets the process requirement and other components except titanium meet the process requirement, preparing to go out of the station for casting within the first 2min, operating the ladle to a furnace rear platform, observing and positioning the ladle through a feeding observation hole, and aligning a vertical feeding pipe of a feeding pipe to the exposed area of the argon blowing molten steel of the ladle. The feeding mechanism is adopted to add ferrotitanium, the ferrotitanium is directly added into the deep part of molten steel under the action of larger gravitational potential energy through a receiving pipe, a material sliding inclined pipe and a vertical feeding pipe of the feeding mechanism, and the ferrotitanium is not contacted with steel slag, so that titanium burning loss and oxidation are less, and the titanium recovery rate is improved. After the ferrotitanium is added, the ladle is operated to an argon blowing station to continuously blow argon at the bottom of the ladle for 60-100 s, then the argon blowing is finished, and the ladle is lifted out of a continuous casting platform on the argon blowing station to be cast.
Tests prove that the steel ladle ferrotitanium adding device adopted in the production process of the hot-rolled ribbed steel bar containing Ti at 400MPa has high Ti yield of 55-65 percent, good molten steel fluidity and continuous casting furnace number of 20 furnaces.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without the technical solutions of the present invention, or the present invention can be directly applied to other occasions without the improvements, and all are within the protection scope of the present invention.
Claims (7)
1. A steel ladle ferrotitanium adding device is characterized in that: including stove rear platform (5), be used for adding throwing of ferrotitanium material mechanism (7), ladle (2), buggy ladle (3) and track (4), buggy ladle (3) set up on track (4) and move along track (4), ladle (2) are placed on buggy ladle (3), stove rear platform (5) are located the top of buggy ladle (3), throw material mechanism (7) and set up on stove rear platform (5), stove rear platform (5) adopt the steel material to make.
2. The ladle ferrotitanium charging device of claim 1, wherein: the feeding observation hole (6) is formed in the furnace rear platform (5), one end of the feeding mechanism (7) is connected to the furnace rear platform (5), the other end of the feeding mechanism (7) penetrates through the feeding observation hole (6) to be communicated with the steel ladle (2), and the lowest end of the feeding mechanism (7) is higher than the liquid level of molten steel in the steel ladle (2).
3. The ladle ferrotitanium charging device of claim 2, wherein: the feeding mechanism (7) comprises a support (71) and a feeding pipe, the feeding pipe is connected to the furnace rear platform (5) through the support (71), one end of the feeding pipe is located above the furnace rear platform (5), the other end of the feeding pipe penetrates through the feeding observation hole (6) to be communicated with the steel ladle (2), and ferrotitanium is added into the steel ladle (2) through the feeding pipe.
4. The ladle ferrotitanium charging device of claim 3, wherein: the feeding pipe comprises a receiving pipe (72), a material sliding inclined pipe (73) and a vertical feeding pipe (74), one end of the material sliding inclined pipe (73) is communicated with the receiving pipe (72), the other end of the material sliding inclined pipe (73) is communicated with the vertical feeding pipe (74), the other end of the vertical feeding pipe (74) is communicated with the steel ladle (2), and ferrotitanium is added from the receiving pipe (72) and enters the steel ladle (2) through the material sliding inclined pipe (73) and the vertical feeding pipe (74).
5. The ladle ferrotitanium charging device of claim 4, wherein: one end of the support (71) is connected to the furnace rear platform (5), and the other end of the support (71) is connected to the material sliding inclined tube (73) and used for supporting the feeding tube.
6. The ladle ferrotitanium charging device of claim 4, wherein: the receiving pipe (72) is a round pipe with a large caliber, the material sliding inclined pipe (73) is a horn-shaped round pipe, the vertical feeding pipe (74) is a round pipe with a small caliber, the bottom end of the vertical feeding pipe (74) is higher than the liquid level of the molten steel in the steel ladle (2), and the vertical feeding pipe (74) is aligned to the exposed area of the argon-blowing molten steel of the steel ladle.
7. The ladle titanium iron adding device according to any one of claims 3 to 6, wherein: the ladle ferrotitanium adding device further comprises a converter (1) and an argon blowing station (8), after the converter (1) is smelted to reach a tapping condition, the converter (1) is rotated to incline, molten steel is added into a ladle (2) below a converter platform through a converter tapping hole, the ladle (2) is transported through a ladle car (3), alloy is added into the ladle (2) at the converter platform, the alloy in the ladle (2) is finely adjusted at the argon blowing station (8), ferrotitanium is added into the ladle (2) at a platform behind the converter, the argon blowing station (8) is communicated with the ladle (2) through an argon blowing pipeline, and the argon blowing station (8) blows argon to the molten steel in the ladle through the argon blowing pipeline in the whole tapping process and the ladle transporting process.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011033320.9A CN112111626A (en) | 2020-09-27 | 2020-09-27 | Steel ladle ferrotitanium adding device and steel ladle ferrotitanium adding process |
| CN2020110333209 | 2020-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213977771U true CN213977771U (en) | 2021-08-17 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011033320.9A Withdrawn CN112111626A (en) | 2020-09-27 | 2020-09-27 | Steel ladle ferrotitanium adding device and steel ladle ferrotitanium adding process |
| CN202023056105.9U Active CN213977771U (en) | 2020-09-27 | 2020-12-17 | Steel ladle ferrotitanium adding device |
| CN202011494315.8A Pending CN112442570A (en) | 2020-09-27 | 2020-12-17 | Steel ladle ferrotitanium adding device and steel ladle ferrotitanium adding process |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011033320.9A Withdrawn CN112111626A (en) | 2020-09-27 | 2020-09-27 | Steel ladle ferrotitanium adding device and steel ladle ferrotitanium adding process |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011494315.8A Pending CN112442570A (en) | 2020-09-27 | 2020-12-17 | Steel ladle ferrotitanium adding device and steel ladle ferrotitanium adding process |
Country Status (1)
| Country | Link |
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| CN (3) | CN112111626A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897473B (en) * | 2021-08-20 | 2023-03-07 | 江阴兴澄特种钢铁有限公司 | Control device and method for alloy adding speed of electric furnace EBT steel tapping feeding pipe |
-
2020
- 2020-09-27 CN CN202011033320.9A patent/CN112111626A/en not_active Withdrawn
- 2020-12-17 CN CN202023056105.9U patent/CN213977771U/en active Active
- 2020-12-17 CN CN202011494315.8A patent/CN112442570A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN112442570A (en) | 2021-03-05 |
| CN112111626A (en) | 2020-12-22 |
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