CN111331088A - Crystallizer for arc-shaped hollow round billet continuous casting machine and arc-shaped hollow round billet continuous casting machine - Google Patents
Crystallizer for arc-shaped hollow round billet continuous casting machine and arc-shaped hollow round billet continuous casting machine Download PDFInfo
- Publication number
- CN111331088A CN111331088A CN202010310080.6A CN202010310080A CN111331088A CN 111331088 A CN111331088 A CN 111331088A CN 202010310080 A CN202010310080 A CN 202010310080A CN 111331088 A CN111331088 A CN 111331088A
- Authority
- CN
- China
- Prior art keywords
- continuous casting
- hollow round
- round billet
- casting machine
- crystallizer
- 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
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 68
- 238000002425 crystallisation Methods 0.000 claims abstract description 12
- 230000008025 crystallization Effects 0.000 claims abstract description 12
- 235000019484 Rapeseed oil Nutrition 0.000 claims abstract description 8
- 238000005461 lubrication Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000005520 cutting process Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 5
- 239000000443 aerosol Substances 0.000 claims description 4
- 239000003517 fume Substances 0.000 claims 2
- 238000005266 casting Methods 0.000 abstract description 30
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000007654 immersion Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- B22D11/006—Continuous casting of metals, i.e. casting in indefinite lengths of tubes
-
- 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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/0403—Multiple moulds
-
- 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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/043—Curved moulds
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
-
- 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
- B22D11/14—Plants for continuous casting
- B22D11/142—Plants for continuous casting for curved casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D45/00—Equipment for casting, not otherwise provided for
- B22D45/005—Evacuation of fumes, dust or waste gases during manipulations in the foundry
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention provides a crystallizer for an arc hollow round billet continuous casting machine and the arc hollow round billet continuous casting machine, the crystallizer for the arc hollow round billet continuous casting machine comprises: an outer crystallizer having a circular crystallization cavity; the inner crystallizer is coaxially sleeved inside the circular crystallization cavity, a rapeseed oil hole for lubrication is formed in the periphery of the inner crystallizer, and the outer diameter of the inner crystallizer is gradually reduced along the vertical direction. The invention has the advantages that the inner peripheral surface of the casting blank can be lubricated by arranging the rapeseed oil hole in the inner crystallizer, and the inner crystallizer is arranged into an inverted cone structure, so that the casting blank can be easily separated from the inner crystallizer, and the aim of preventing the locking of the casting blank and the inner crystallization is fulfilled.
Description
Technical Field
The invention relates to the technical field of continuous casting in steel production, in particular to a crystallizer for an arc-shaped hollow round billet continuous casting machine and the arc-shaped hollow round billet continuous casting machine.
Background
With the development of the iron and steel industry, iron and steel enterprises pay more and more attention to energy conservation and consumption reduction, and the near-net-shape continuous casting technology can save energy and reduce the investment and production cost of the subsequent process, wherein the hollow round billet continuous casting technology is one of the technologies. At present, seamless steel tube manufacturers mainly adopt a method of solid round billet → perforation → oblique rolling pierced billet → continuous rolling tube → reduction and sizing to produce seamless steel tubes, if the blanks are made into hollow round billets, the perforation procedure can be omitted, the investment of tube-penetrating equipment and the production cost are reduced, and the method has great economic benefits for iron and steel enterprises.
At present, a plurality of enterprises for producing hollow round billets and steel pipes by direct continuous casting technology are researched, but no report of industrial production is provided. The continuous casting production of the hollow round billet has the following problems that the falling is difficult due to the fact that the crystallizer is tightly held by the solidification and shrinkage of the molten steel, the molten steel contacted with the inner crystallizer is easy to leak in the crystallization process, the steel leakage meets secondary cooling water, explosion accidents are easy to occur, and the like. Meanwhile, at present, a plurality of hollow round billets are produced by adopting a vertical continuous casting machine type, and because a continuous casting machine needs to be newly built and a foundation pit of a common vertical continuous casting machine is deep, construction in an existing workshop is difficult. At present, a plurality of arc-shaped round billet continuous casting machines are in domestic production of round billets, and if the existing continuous casting machines can be modified to produce hollow round billets, the method has great popularization value.
Disclosure of Invention
The invention provides a crystallizer for an arc hollow round billet continuous casting machine and the arc hollow round billet continuous casting machine, which aim to solve the problem of difficult slip of a casting blank.
The technical scheme adopted by the invention for solving the technical problems is as follows: a crystallizer for an arc-shaped hollow round billet continuous casting machine comprises: an outer crystallizer having a circular crystallization cavity; the inner crystallizer is coaxially sleeved inside the circular crystallization cavity, a rapeseed oil hole for lubrication is formed in the periphery of the inner crystallizer, and the outer diameter of the inner crystallizer is gradually reduced along the vertical direction.
Further, the length of the inner crystallizer is 880-1000 mm.
Furthermore, the taper of the inner crystallizer is 0.4-0.8%/m.
The invention also provides an arc-shaped hollow round billet continuous casting machine which comprises the crystallizer for the arc-shaped hollow round billet continuous casting machine, the arc-shaped hollow round billet continuous casting machine also comprises an intermediate tank, the intermediate tank is arranged above the crystallizer for the arc-shaped hollow round billet continuous casting machine and is connected with the crystallizer for the arc-shaped hollow round billet continuous casting machine, the intermediate tank comprises a first tank body part and a second tank body part, the first end of the second tank body part is connected with the middle part of the first tank body part, and the first tank body part and the second tank body part are arranged vertically.
Further, the other end of the second tank body is provided with a long nozzle drop point for pouring molten steel; the first jar of internal multiunit immersion nozzle installation piece that is provided with of jar, multiunit immersion nozzle installation piece set up along the length direction interval of the first jar of body, and every immersion nozzle installation piece all can set up the immersion nozzle that two intervals set up.
Furthermore, the outlets of the two submerged nozzles arranged on the same submerged nozzle mounting block are respectively provided with a hole on one side, and the holes on one side are in the same hole opening direction.
Furthermore, the arc hollow round billet continuous casting machine further comprises a movable section which is arranged at an outlet at the lower end of the crystallizer for the arc hollow round billet continuous casting machine, and the movable section is provided with an outer pipe cooling assembly for cooling the periphery of a casting blank and an inner pipe cooling assembly for cooling an inner pipe of the casting blank.
Further, the outer pipe cooling assembly is an aerosol cooling assembly, and the inner pipe cooling assembly is a compressed air cooling assembly.
Furthermore, the arc hollow round billet continuous casting machine also comprises a fixed section, a tension leveler, a flame cutting machine and a billet discharge roller way which are connected in sequence, wherein the fixed section is connected with the movable section.
Further, a cutting smoke collecting device used for absorbing smoke is arranged on the flame cutting machine.
The invention has the advantages that the inner peripheral surface of the casting blank can be lubricated by arranging the rapeseed oil hole in the inner crystallizer, and the inner crystallizer is arranged into an inverted cone structure, so that the casting blank can be easily separated from the inner crystallizer, and the aim of preventing the locking of the casting blank and the inner crystallization is fulfilled.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a top view of the tundish of FIG. 1;
FIG. 3 is a distribution diagram of the crystallizer and the submerged entry nozzle in FIG. 1.
Reference numbers in the figures: 1. an intermediate tank; 11. a first tank body portion; 12. a second tank body portion; 13. a long nozzle drop point; 14. an immersion nozzle mounting block; 2. an immersion nozzle; 3. a crystallizer; 31. an outer crystallizer; 32. an inner crystallizer; 4. a crystallizer vibration device; 5. an inner tube cooling assembly; 6. an active segment; 7. casting blanks; 8. a fixed section; 9. a withdrawal and straightening machine; 10. a cutting flue gas collecting device; 11. a flame cutter; 12. and (4) a knockout roller way.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 3, an embodiment of the present invention provides a mold for an arc-shaped hollow round billet continuous casting machine, which includes an outer mold 31 and an inner mold 32. The outer crystallizer 31 has a circular crystallization chamber. The inner crystallizer 32 is coaxially sleeved inside the circular crystallization cavity, a rapeseed oil hole for lubrication is arranged on the periphery of the inner crystallizer 32, and the outer diameter of the inner crystallizer 32 is gradually reduced along the vertical direction.
The inner periphery of the casting blank 7 can be lubricated by arranging the rapeseed oil holes on the inner crystallizer 32, and the inner crystallizer 32 is arranged in a reverse taper structure, so that the casting blank 7 can be easily separated from the inner crystallizer 32, and the aim of preventing the inner crystallizer 32 from being locked by the casting blank 7 is fulfilled.
Preferably, the length of the inner mold 32 is 880 to 1000 mm. The taper of the inner crystallizer 32 is 0.4-0.8%/m. The length of the inner crystallizer 32 is set to be the length which is 100-200 mm longer than that of the existing inner crystallizer, so that cooling can be prolonged, and the inner crystallizer 32 is prevented from being locked by the casting blank 7. The taper of the inner mold 32 is set to the above range to facilitate the cast slab 7 to be separated from the inner mold 32.
Further, in the embodiment of the present invention, the thickness of the shell of the inner mold 32 is thicker than that of the shell of the inner mold in the prior art, so as to further prevent the casting blank 7 from locking the inner mold 32.
The invention also provides an arc-shaped hollow round billet continuous casting machine, which comprises the crystallizer 3 and the crystallizer vibration device 4 for the arc-shaped hollow round billet continuous casting machine, wherein the crystallizer vibration device 4 is arranged outside the crystallizer 3 for the arc-shaped hollow round billet continuous casting machine and can vibrate and stir the crystallizer 3 for the arc-shaped hollow round billet continuous casting machine, so that the crystallization effect of the crystallizer 3 for the arc-shaped hollow round billet continuous casting machine is better.
As shown in fig. 1, in the embodiment of the present invention, the arc-shaped hollow round billet continuous casting machine further includes an intermediate tank 1 disposed above the mold 3 for the arc-shaped hollow round billet continuous casting machine and connected to the mold 3 for the arc-shaped hollow round billet continuous casting machine, the intermediate tank 1 includes a first tank body portion 11 and a second tank body portion 12, a first end of the second tank body portion 12 is connected to a middle portion of the first tank body portion 11, and the first tank body portion 11 and the second tank body portion 12 are disposed perpendicular to each other. The tundish 1 is set to be of a T-shaped structure, and can be suitable for hollow round billet production.
Specifically, the other end of the second tank 12 is provided with a long nozzle drop point 13 for molten steel injection; a plurality of groups of submerged nozzle mounting blocks 14 are arranged in the first tank 11, the plurality of groups of submerged nozzle mounting blocks 14 are arranged at intervals along the length direction of the first tank 11, and each submerged nozzle mounting block 14 can be provided with two submerged nozzles arranged at intervals.
In the embodiment of the invention, each submerged nozzle mounting block 14 can be provided with two submerged nozzles which are arranged at intervals so as to meet the casting requirement of the hollow round billet, and the two submerged nozzles 2 can simultaneously inject molten steel into the crystallizer 3 for the arc-shaped hollow round billet continuous casting machine.
It should be noted that, in the embodiment of the present invention, because the distances between the nozzles of different hollow round billet sections are different, when producing hollow round billets with different sections, different submerged nozzle mounting blocks 14 need to be replaced. Namely, the spacing distance L of two submerged nozzles 2 in the submerged nozzle mounting block 14 is adjusted according to different nozzle spacing of different hollow round billet end surfaces.
As shown in fig. 3, in the embodiment of the present invention, the outlets of two submerged nozzles installed on the same submerged nozzle installation block 14 are opened on one side, and the opening direction on one side is the same.
The molten steel forms anticlockwise circulation (arrow direction in figure 3) after coming out of the two submerged nozzles, slag inclusion and bubbles in the molten steel can float upwards through circulation movement, the temperature of the molten steel is uniform, slag inclusion, air holes and microcracks on the surface of the continuous casting billet 7 are reduced, and the quality of the continuous casting billet 7 is improved. It acts like electromagnetic stirring of the crystallizer but does not require electricity.
As shown in fig. 1, the arc-shaped hollow round billet continuous casting machine according to the embodiment of the present invention further includes a movable section 6 disposed at an outlet of a lower end of the mold 3 for the arc-shaped hollow round billet continuous casting machine, and the movable section is provided with an outer pipe cooling module for cooling an outer periphery of a cast slab 7 and an inner pipe cooling module 5 for cooling an inner pipe of the cast slab 7.
Set up outer tube cooling module and inner tube cooling module 5 and can cool off the casting blank 7 that is located activity section 6 department, the 7 temperature of casting blank of being convenient for reduces to the settlement temperature fast, prevents simultaneously that casting blank 7 high temperature returns, causes the bleed-out.
Specifically, the outer tube cooling assembly is an aerosol cooling assembly, and the inner tube cooling assembly 5 is a compressed air cooling assembly. The use of an aerosol cooling assembly may reduce production costs. The compressed air of the inner pipe cooling assembly 5 can be conveyed through the inner crystallizer 32, and the compressed air cooling assembly can avoid using cooling water, so that the molten steel can be prevented from contacting with water to explode after steel leakage. In the embodiment of the invention, the outer pipe cooling assembly and the inner pipe cooling assembly 5 are arranged, so that the problem that steel leakage meets secondary cooling water due to poor cooling of the inner pipe in the prior art can be avoided, and the risk of explosion is reduced.
As shown in fig. 1, the arc hollow round billet continuous casting machine further comprises a fixed section 8, a withdrawal and straightening unit 9, a flame cutting unit 11 and a billet discharge roller table 12 which are connected in sequence, wherein the fixed section 8 is connected with the movable section 6. Wherein, the flame cutting machine 11 is provided with a cutting smoke collecting device 10 for absorbing smoke.
After the hollow round billet has certain strength and thickness, the casting billet 7 passes through the fixing section 8 and then enters the tension leveler 9, and the casting billet 7 moves forwards at a set tension speed through the clamping of the tension leveler 9.
The rear of the withdrawal and straightening machine 9 is provided with a flame cutter 11, the casting blank 7 is cut off through the flame cutter 11, and the inner pipe cooling assembly 5 is cooled by a large amount of compressed air, so the flame cutter 11 needs to be additionally provided with a cutting flue gas collecting device 12 for collecting high-temperature air sprayed by the inner pipe cooling assembly 5 and flue gas generated when the flame cutter 11 cuts the casting blank 7. After the fire cutting machine 11 cuts off the casting blank 7, the casting blank 7 is conveyed to a blank discharging position through a blank discharging roller way 12, and the casting blank 7 is discharged through a crown block, so that the production of the hollow round blank is realized.
It should be noted that, in the embodiment of the present invention, the existing arc-shaped round billet continuous casting machine may be modified to enable the existing arc-shaped round billet continuous casting machine to realize the production of the hollow round billet. The crystallizer vibration device 4, the movable section 6 (including the outer pipe cooling assembly at the position of the movable section 6), the fixed section 8, the withdrawal and straightening unit 9, the flame cutting unit 11 and the knockout roller way 12 in the embodiment can directly use the original arc-shaped round billet continuous casting machine, so that a production workshop of a vertical continuous casting machine does not need to be separately opened up when the hollow round billet is produced, and the production cost of a factory is saved.
During specific operation, the three-flow large round billet continuous casting machine can be modified to form the arc hollow round billet continuous casting machine aiming at the radius R12-17 m of a casting machine, the flow interval is 1500-3000 mm, the section of a round billet is 400-1000 mm, and the length of the crystallizer 3 for the arc hollow round billet continuous casting machine is 780-850 mm.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: according to the embodiment of the invention, the production of the hollow round billet is realized by transforming the existing round billet continuous casting machine, the existing continuous casting machine facilities can be utilized, and the construction cost is reduced.
The inner periphery of the casting blank 7 can be lubricated by arranging the rapeseed oil holes on the inner crystallizer 32, and the inner crystallizer 32 is arranged in a reverse taper structure, so that the casting blank 7 can be easily separated from the inner crystallizer 32, and the aim of preventing the inner crystallizer 32 from being locked by the casting blank 7 is fulfilled.
The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features, the technical schemes and the technical schemes can be freely combined and used.
Claims (10)
1. The utility model provides a hollow round billet crystallizer for continuous casting machine of arc which characterized in that includes:
an outer crystallizer (31) having a circular crystallization cavity;
the inner crystallizer (32) is coaxially sleeved inside the circular crystallization cavity, a rapeseed oil hole for lubrication is formed in the periphery of the inner crystallizer (32), and the outer diameter of the inner crystallizer (32) is gradually reduced along the vertical direction.
2. The crystallizer for the arc-shaped hollow round billet continuous casting machine according to claim 1, characterized in that the length of the inner crystallizer (32) is 880-1000 mm.
3. The crystallizer for the arc-shaped hollow round billet continuous casting machine according to claim 1, characterized in that the taper of the inner crystallizer (32) is 0.4-0.8%/m.
4. An arc-shaped hollow round billet continuous casting machine comprising the mold (3) for the arc-shaped hollow round billet continuous casting machine according to any one of claims 1 to 3, characterized in that the arc-shaped hollow round billet continuous casting machine further comprises an intermediate tank (1) disposed above the mold (3) for the arc-shaped hollow round billet continuous casting machine and connected with the mold (3) for the arc-shaped hollow round billet continuous casting machine, the intermediate tank (1) comprises a first tank body portion (11) and a second tank body portion (12), a first end of the second tank body portion (12) is connected with a middle portion of the first tank body portion (11), and the first tank body portion (11) and the second tank body portion (12) are disposed perpendicular to each other.
5. The curved hollow round billet continuous casting machine according to claim 4,
the other end of the second tank body (12) is provided with a long nozzle drop point (13) for pouring molten steel;
the submerged nozzle structure is characterized in that a plurality of groups of submerged nozzle mounting blocks (14) are arranged in the first tank body (11), the plurality of groups of submerged nozzle mounting blocks (14) are arranged at intervals along the length direction of the first tank body (11), and each submerged nozzle mounting block (14) can be provided with two submerged nozzles arranged at intervals.
6. The curved hollow round billet continuous casting machine according to claim 5, wherein the outlets of two submerged nozzles installed on the same submerged nozzle installation block (14) are opened on one side, and the opening directions of the one side are the same.
7. The curved hollow round billet continuous casting machine according to claim 4, further comprising a movable section (6) provided at a lower end outlet of the mold (3) for the curved hollow round billet continuous casting machine, the movable section being provided with an outer pipe cooling assembly for cooling the outer periphery of the cast slab and an inner pipe cooling assembly for cooling the inner pipe of the cast slab.
8. The curved hollow round billet caster according to claim 7, wherein said outer pipe cooling assembly is an aerosol cooling assembly and said inner pipe cooling assembly is a compressed air cooling assembly.
9. The curved hollow round billet continuous casting machine according to claim 7, further comprising a fixed section (8), a withdrawal and straightening unit (9), a flame cutting unit (11) and a run-out table (12) which are connected in sequence, wherein the fixed section (8) is connected with the movable section (6).
10. The curved hollow round billet continuous casting machine according to claim 9, characterized in that the flame cutting machine (11) is provided with a cutting fume collecting device (10) for absorbing the fume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310080.6A CN111331088A (en) | 2020-04-20 | 2020-04-20 | Crystallizer for arc-shaped hollow round billet continuous casting machine and arc-shaped hollow round billet continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310080.6A CN111331088A (en) | 2020-04-20 | 2020-04-20 | Crystallizer for arc-shaped hollow round billet continuous casting machine and arc-shaped hollow round billet continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111331088A true CN111331088A (en) | 2020-06-26 |
Family
ID=71177245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010310080.6A Pending CN111331088A (en) | 2020-04-20 | 2020-04-20 | Crystallizer for arc-shaped hollow round billet continuous casting machine and arc-shaped hollow round billet continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111331088A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276029A (en) * | 2020-11-05 | 2021-01-29 | 中冶京诚工程技术有限公司 | Round billet continuous casting system and continuous casting method |
| CN114932205A (en) * | 2022-06-02 | 2022-08-23 | 福建圣力智能工业科技股份有限公司 | Crystallizer lubricating device for continuous casting machine |
-
2020
- 2020-04-20 CN CN202010310080.6A patent/CN111331088A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276029A (en) * | 2020-11-05 | 2021-01-29 | 中冶京诚工程技术有限公司 | Round billet continuous casting system and continuous casting method |
| CN114932205A (en) * | 2022-06-02 | 2022-08-23 | 福建圣力智能工业科技股份有限公司 | Crystallizer lubricating device for continuous casting machine |
| CN114932205B (en) * | 2022-06-02 | 2024-04-05 | 福建圣力智能工业科技股份有限公司 | Crystallizer lubricating device for continuous casting machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111331088A (en) | Crystallizer for arc-shaped hollow round billet continuous casting machine and arc-shaped hollow round billet continuous casting machine | |
| CN109093084A (en) | A kind of production method of continuous-casting sheet billet | |
| CN101147961A (en) | Continuous casting technology for producing super large standard round billet on R12 to 14 meter arc continuous casting machine | |
| CN212443142U (en) | Crystallizer for arc-shaped hollow round billet continuous casting machine and arc-shaped hollow round billet continuous casting machine | |
| CN110666115A (en) | Crystallizer and vertical hollow round billet continuous casting machine | |
| CN101433948B (en) | Round billet continuous casting machine with especially big sectional plane | |
| CN101992282B (en) | Continuous casting method | |
| CN110860664A (en) | Vertical hollow round billet continuous casting machine and billet discharging method | |
| CN204912747U (en) | Crystallizer vortex immersion nozzle | |
| CN211360582U (en) | Crystallizer and vertical hollow round billet continuous casting machine | |
| CN201427180Y (en) | Secondary cooling device on lower port of mold | |
| JP2014515991A (en) | Molten steel injection equipment | |
| CN201304475Y (en) | Continuous casting device for producing round billet with diameter being more than or equal to Phi 800 mm on straight-form conticaster | |
| CN204770546U (en) | Abnormal shape base conticaster | |
| CN211464777U (en) | Vertical hollow round billet continuous casting machine | |
| CN201353635Y (en) | Round billet conticaster with extra large section | |
| CN111570745A (en) | Direct rolling continuous casting machine and continuous casting production line thereof | |
| CN110773712A (en) | Continuous casting system and continuous casting process for polygonal casting blank | |
| CN110773731A (en) | Improve immersion side nozzle for continuous casting in crystallizer flow field | |
| CN212525981U (en) | Direct rolling continuous casting machine and continuous casting production line thereof | |
| CN102335729A (en) | Hyperbolic-type crystallizer copper pipe | |
| CN211360593U (en) | Continuous casting system for polygonal casting blank | |
| CN102773431B (en) | Special inner crystallizer device for continuous casting | |
| CN102672120A (en) | Production device for continuous casting of vertical tube blanks | |
| CN202571216U (en) | Special inner crystallizer device for continuous casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |