CN211413586U - Square billet continuous casting crystallizer - Google Patents
Square billet continuous casting crystallizer Download PDFInfo
- Publication number
- CN211413586U CN211413586U CN201921891805.4U CN201921891805U CN211413586U CN 211413586 U CN211413586 U CN 211413586U CN 201921891805 U CN201921891805 U CN 201921891805U CN 211413586 U CN211413586 U CN 211413586U
- Authority
- CN
- China
- Prior art keywords
- crystallizer
- water tank
- cooling water
- molten steel
- continuous casting
- 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.)
- Active
Links
Images
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model discloses a square billet continuous casting crystallizer, including the crystallizer body, be provided with first cooling water course in the pipe wall of crystallizer body, the peripheral molten steel impact zone corresponding position with crystallizer body internal surface of crystallizer body is provided with the water tank, forms annular cooling zone between the surface of water tank and crystallizer body, and the periphery of crystallizer body is located the below overcoat cooling jacket of water tank, forms slot formula cooling water course between the surface of cooling jacket and crystalline solid body. The utility model can effectively solve the problem of insufficient cooling capacity of the high-pulling-speed crystallizer; the problem that the local temperature of the crystallizer is too high due to the fact that molten steel quickly impacts the inner surface of the crystallizer at a high drawing speed can be solved, the gap type cooling water channel is only arranged in the molten steel impact area and the area below the impact area, and the cooling water channel is not arranged on the periphery of the upper portion of the crystallizer, so that the problem that the temperature of the upper portion of the crystallizer is too low due to the fact that the impact depth of the molten steel in the crystallizer is deep at the high drawing speed is effectively solved.
Description
Technical Field
The utility model belongs to the technical field of continuous casting, in particular to square billet continuous casting crystallizer.
Background
At present, energy conservation and efficiency improvement become main pursuit targets of the steel industry. The high-speed continuous casting technology is a key technology for realizing endless rolling and has obvious economic benefit. At present, the casting speed of the domestic billet continuous casting machine is generally between 2.0 and 3.5 m/min; if the pulling speed of a billet continuous casting machine is increased to 5m/min or even 7m/min, the cooling capacity of the original billet crystallizer obviously cannot meet the requirement of the process on the cooling capacity of the crystallizer at a high pulling speed. If the cooling capacity of the crystallizer is insufficient, the problems of steel leakage, billet breakage and the like are easy to occur in the high-pulling-speed production process of the billet continuous casting machine. Meanwhile, a molten steel direct scouring area exists on the inner surface of the crystallizer, the temperature of the copper wall of the crystallizer in the area is often high, the crystallizer is easy to deform, and the service life of the crystallizer is influenced. In addition, at high drawing speed, the temperature of the top of the crystallizer is easily low due to poor liquid level activity of the molten steel. In view of the above, a crystallizer with high efficiency and adjustable cooling capacity needs to be developed.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, the utility model aims to provide a square billet continuous casting crystallizer solves prior art and is slow at the cooling rate that high drawing speed continuous casting in-process exists, among the crystallizer, the local high temperature in lower part, the lower scheduling problem of crystallizer top temperature.
In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:
a square billet continuous casting crystallizer comprises a crystallizer body, wherein a first cooling water channel is arranged in the pipe wall of the crystallizer body, a water tank is arranged at the position, corresponding to a molten steel impact area on the inner surface of the crystallizer body, of the periphery of the crystallizer body, an annular cooling area is formed between the water tank and the outer surface of the crystallizer body, a cooling water jacket is sleeved outside the lower portion of the water tank at the periphery of the crystallizer body, and a gap type cooling water channel is formed between the cooling water jacket and the outer surface of the crystal body.
Optionally, the upper end of the cooling water jacket is connected with the water tank, and the top of the slit cooling water channel is communicated with the annular cooling area.
Optionally, the cooling water jacket extends from the water tank to an outlet of the crystallizer body.
Optionally, the first cooling flume is supplied with water independently of the tank.
Optionally, the distance between the water tank and the liquid level of the molten steel in the crystallizer body is 1/4-1/2 of the length of the crystallizer body.
Optionally, the water tank is arranged at a distance 1/3 of the length of the mold body from the liquid level of the molten steel in the mold body.
Optionally, the cooling water tank is connected with a water inlet pipeline, and a valve is arranged on the water inlet pipeline.
Optionally, the water inlet of the cooling water tank is arranged on the outer arc side of the crystallizer body.
Optionally, the tank is square or circular in cross-section.
Optionally, the cooling water jacket is connected with the water tank into a whole, and the upper end of the water tank is hung on the outer wall of the crystallizer body or welded with the outer wall of the crystallizer body.
The utility model has the advantages that: the utility model arranges a first cooling water channel in the pipe wall of the crystallizer; meanwhile, the outer wall of the crystallizer is provided with a slit type cooling water channel, and the slit type cooling water channel is only arranged in the area below the molten steel impact area of the crystallizer. The arrangement of the double cooling water channels of the utility model can ensure that the cooling capacity of the crystallizer can meet the technological requirements under the condition of high drawing speed of the square billet; meanwhile, when the water tank and the slit-type water channel are not started, the crystallizer can also be used for continuous casting of square billets at a low drawing speed. The utility model discloses the crystallizer has set up the water tank corresponding to molten steel impact zone department, can effectively avoid under the high casting speed, the molten steel strikes the crystallizer internal surface fast and the too high problem of crystallizer local temperature that arouses. Meanwhile, the slit type cooling water channel is only arranged in the area below the molten steel impact area, and the periphery of the upper part of the crystallizer is not provided with the cooling water channel, so that the problem that the temperature of the upper part of the crystallizer is too low due to the fact that the surface of the molten steel is inactive because the impact depth of the molten steel in the crystallizer is deep under high drawing speed is effectively avoided.
Drawings
Fig. 1 is a schematic structural diagram showing an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of the present invention (with the water tank omitted);
FIG. 3 is a molten steel flow chart.
Description of reference numerals
1-a crystallizer body; 2-a first cooling water channel; 3-a water tank; 4-cooling water jacket; 5-a water inlet pipeline; 6-a valve; 7-an annular cooling zone; 8-slit cooling water channels.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the terms "upper", "lower", "left", "right", "middle" and "one" used herein are for clarity of description, and are not intended to limit the scope of the invention, but rather the scope of the invention.
As shown in fig. 1 to 2, the continuous square billet casting mold of the present embodiment includes a mold body 1, a first cooling water channel 2 is disposed in a tube wall of the mold body 1, the first cooling water channel 2 penetrates through the tube wall of the crystal body along a length direction of the crystal body, an upper end of the first cooling water channel 2 is a water inlet, and a lower end thereof is a water outlet; the key point is that a water tank 3 and a cooling water jacket 4 are arranged on the periphery of the crystallizer body 1, the position of the water tank 3 on the crystal body corresponds to a molten steel impact area on the inner surface of the crystallizer body 1, an annular cooling area is formed between the water tank 3 and the outer surface of the crystallizer body 1, and cooling water in the water tank 3 is directly contacted with the outer wall of the crystallizer body 1 for cooling; the cooling water jacket 4 is connected below the water tank 3, namely, below the molten steel impact area, and an annular gap type cooling water channel 8 is formed between the cooling water jacket 4 and the outer surface of the crystal body.
Wherein, the upper end of the cooling water jacket 4 is connected with the bottom of the water tank 3, and the top of the slit type cooling water channel 8 is communicated with the annular cooling area.
The utility model arranges a first cooling water channel 2 in the pipe wall of the crystallizer; meanwhile, the outer wall of the crystallizer is provided with a slit type cooling water channel 8, and the slit type cooling water channel is only arranged in the area below the molten steel impact area of the crystallizer. The arrangement of the double cooling water channels of the utility model can ensure that the cooling capacity of the crystallizer can meet the technological requirements under the condition of high drawing speed of the square billet; meanwhile, when the water tank 3 and the slit cooling water channel 8 are not started, the crystallizer can also be used for continuous casting of square billets at low drawing speed. The water tank 3 is arranged at the position of the crystallizer corresponding to the molten steel impact area, so that the problem of overhigh local temperature of the crystallizer caused by the fact that the molten steel quickly impacts the inner surface of the crystallizer at a high pulling speed can be effectively solved. Meanwhile, the slit type cooling water channel 8 is only arranged in the area below the molten steel impact area, and the periphery of the upper part of the crystallizer is not provided with the cooling water channel, so that the problem that the temperature of the upper part of the crystallizer is too low due to the fact that the surface of the molten steel is inactive because the impact depth of the molten steel in the crystallizer is deep under high pulling speed is effectively avoided.
Wherein, the cooling water jacket 4 extends from the water tank 3 to the outlet of the crystallizer body 1 and only wraps the outer side of part of the crystallizer pipe wall; the cooling effect of the lower part of the crystallizer is ensured.
The first cooling water channel 2 is circular or square, the wall of the crystallizer body 1 is made of copper, the first cooling water channel 2 and the water tank 3 are separately and independently supplied with water, so that the starting and stopping of the water tank 3 are conveniently controlled, the water tank 3 and the slit type cooling water channel 8 are supplied with water in a unified manner, cooling water is accessed from a water inlet of the water tank 3 and flows into the slit type cooling water channel 8 after entering an annular cooling area, the water tank 3 is mainly used for rapidly cooling a molten steel impact area of the crystallizer body 1, and the slit type cooling water channel 8 is mainly used for cooling the middle part and the lower part of the crystallizer body 1.
In this embodiment, the water inlet of the cooling water tank 3 is disposed on the outer arc side of the mold body 1, and water is introduced from the outer arc side due to a large impact of molten steel on the outer arc side, thereby enhancing cooling of the outer arc side.
In one embodiment, the water tank 3 is connected to a water inlet pipe 5, the water inlet pipe 5 is connected to a water inlet, and a valve 6 is disposed on the water inlet pipe 5 for controlling opening and closing or size. The tank 3 is square or circular in cross-section, in this case illustrated as square.
The distance between the water tank 3 and the liquid level of molten steel in the crystallizer is 1/4-1/2 of the length of the crystallizer body 1, namely the water tank 3 is arranged in any area of the crystallizer body 1 from a molten steel inlet 1/4-1/2, and the cooling effect on a molten steel impact area can be ensured.
In this example, the water tank 3 is provided at a position 1/3 which is a distance from the molten steel surface of the mold corresponding to the length of the mold body 1.
FIG. 3 is a flow chart showing molten steel, in which it can be seen that the temperature is highest at a position where the molten steel enters the liquid surface, rather than at the highest position, i.e., at a position where the molten steel reaches a certain distance deep into the liquid surface, i.e., a molten steel impact region, and after the impact, a portion of the molten steel flows downward and a portion of the molten steel flows backward; the impact on the inner surface of the crystallizer is greater in this zone, resulting in a higher temperature at this point of the crystallizer.
Under the condition of high billet drawing speed, the impact depth of the molten steel in the crystallizer is deep, and the flow rate of the molten steel is high; in order to avoid the high temperature of the crystallizer in the molten steel impact area, the utility model discloses the position corresponding to the molten steel impact area at the crystallizer has set up water tank 3. Meanwhile, under the condition of high billet drawing speed, the impact depth of molten steel in the crystallizer is deep, the fluctuation of the liquid level is small, and the upper part of the crystallizer is easy to generate the supercooling condition. The slotted cooling water channel 8 is therefore only arranged in the region of the mold below the molten steel impingement zone.
In one embodiment, the cooling water jacket 4 is connected with the water tank 3 as a whole, and the upper end of the water tank 3 is hung or welded on the outer wall of the crystallizer body 1, so as to form a space for containing cooling water with the outer wall of the crystallizer. The water tank 3 is annularly arranged on the periphery of the crystallizer body 1 to form an annular cavity, so that cooling water can be buffered, and the water tank 3 can also be called as a water jacket, a container, a shell and the like.
When the pulling speed of the continuous casting crystallizer is less than 4m/min, only the first cooling water channel 2 is adopted for cooling; when the pulling speed of the continuous casting crystallizer is more than or equal to 4m/min, the first cooling water channel 2, the annular cooling area and the slit type cooling water channel 8 are adopted for cooling simultaneously; the water tank 3 and the first cooling water channel 2 are independently supplied with water, and the cooling water entering from the water tank 3 flows into the slit type cooling water channel 8 after being buffered by the annular cooling area.
When the billet continuous casting speed is lower, such as the conventional 2.0-3.5 m/min; the slit cooling water channel 8 and the valve 6 in front of the water tank 3 are closed and cooled only by the first cooling water channel 2 penetrating the crystallizer. When the continuous casting speed of the square billet is increased, such as 4m/min, 5m/min and even 7m/min, opening a valve 6 of a water inlet pipeline 5 in front of the gap type water channel and the water tank 3; at this time, the crystallizer is cooled by the first cooling water channel 2, the water tank 3 and the slit cooling water channel 8 at the same time.
The arrangement of the double cooling water channels of the utility model can ensure that the cooling capacity of the crystallizer can meet the technological requirements under the condition of high drawing speed of the square billet; meanwhile, the crystallizer can be used for continuous casting of square billets at a low drawing speed by controlling the opening and closing of the valve 6 of the water inlet pipeline 5. Additionally, the utility model discloses set up annular water tank 3 at the position that the crystallizer is corresponding to the molten steel impact zone, can effectively avoid under the high casting speed, the molten steel strikes the crystallizer surface fast and the too high problem of crystallizer local temperature that arouses. Meanwhile, the slit type cooling water channel 8 is only arranged in the area below the molten steel impact area of the crystallizer, so that the problem that the temperature of the upper part of the crystallizer is too low due to the fact that the surface of molten steel is inactive because the impact depth of the molten steel in the crystallizer is deep under high pulling speed is effectively solved.
The utility model is suitable for a low operating mode of drawing the speed also is applicable to the quick cooling of crystallizer under the high speed operating mode of drawing simultaneously.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a square billet continuous casting crystallizer, includes the crystallizer body, be provided with first cooling water course in the pipe wall of crystallizer body, its characterized in that: the crystallizer comprises a crystallizer body, a molten steel impact area and a water tank, wherein the periphery of the crystallizer body is provided with the water tank at a position corresponding to the molten steel impact area on the inner surface of the crystallizer body, an annular cooling area is formed between the water tank and the outer surface of the crystallizer body, a cooling water jacket is sleeved outside the periphery of the crystallizer body below the water tank, and a gap type cooling water channel is formed between the cooling water jacket and the outer surface of the crystal body.
2. The billet continuous casting crystallizer of claim 1, wherein: the upper end of the cooling water jacket is connected with the water tank, and the top of the slit type cooling water channel is communicated with the annular cooling area.
3. The billet continuous casting crystallizer of claim 1, wherein: the cooling water jacket extends from the water tank to the outlet of the crystallizer body.
4. The billet continuous casting crystallizer of claim 1, wherein: the first cooling water channel is independently supplied with water from the water tank.
5. The billet continuous casting crystallizer of claim 1, wherein: the distance between the water tank and the liquid level of the molten steel of the crystallizer body is 1/4-1/2 of the length of the crystallizer body.
6. The billet continuous casting crystallizer of claim 4, wherein: the water tank is arranged at a position 1/3 which is away from the liquid level of the molten steel of the crystallizer body by the length of the crystallizer body.
7. The billet continuous casting crystallizer of claim 1, wherein: the water tank is connected with a water inlet pipeline, and a valve is arranged on the water inlet pipeline.
8. The billet continuous casting crystallizer of claim 1, wherein: the water inlet of the water tank is arranged on the outer arc side of the crystallizer body.
9. The billet continuous casting crystallizer of claim 1, wherein: the cross section of the water tank is square or round.
10. The billet continuous casting crystallizer of claim 1, wherein: the cooling water jacket is connected with the water tank into a whole, and the upper end of the water tank is hung on the outer wall of the crystallizer body or welded with the outer wall of the crystallizer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921891805.4U CN211413586U (en) | 2019-11-05 | 2019-11-05 | Square billet continuous casting crystallizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921891805.4U CN211413586U (en) | 2019-11-05 | 2019-11-05 | Square billet continuous casting crystallizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211413586U true CN211413586U (en) | 2020-09-04 |
Family
ID=72252096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921891805.4U Active CN211413586U (en) | 2019-11-05 | 2019-11-05 | Square billet continuous casting crystallizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211413586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681834A (en) * | 2019-11-05 | 2020-01-14 | 中冶赛迪重庆信息技术有限公司 | Square billet continuous casting crystallizer and cooling method |
-
2019
- 2019-11-05 CN CN201921891805.4U patent/CN211413586U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681834A (en) * | 2019-11-05 | 2020-01-14 | 中冶赛迪重庆信息技术有限公司 | Square billet continuous casting crystallizer and cooling method |
| CN110681834B (en) * | 2019-11-05 | 2023-09-19 | 中冶赛迪信息技术(重庆)有限公司 | Square billet continuous casting crystallizer and cooling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103212779A (en) | Mixing friction welding device of cooling protective mixing head and welded workpiece | |
| CN110681834A (en) | Square billet continuous casting crystallizer and cooling method | |
| US20150251244A1 (en) | Method and Device for Continuous Thin Strip Casting | |
| CN211413586U (en) | Square billet continuous casting crystallizer | |
| CN109093084A (en) | A kind of production method of continuous-casting sheet billet | |
| CN201261063Y (en) | Pouring apparatus for cast-rolling of twin-roll thin strip | |
| CN101219464A (en) | Continuous casting crystallizer capable of controlling liquid level flow field and wave motion | |
| CN210817369U (en) | Copper pipe crystallizer adaptive to extremely high pulling speed | |
| CN104325098A (en) | Cast iron horizontal continuous casting double-water jacket type crystallizer | |
| CN201061822Y (en) | Copper pipe of continuous casting crystallizer with cooling water path | |
| CN207615632U (en) | A kind of double water cooling conticasting straightening rolls | |
| CN204470299U (en) | A kind of cooling device increasing high-speed bar mill on-line cooling effect | |
| CN106834669B (en) | A kind of cylinder of revolution equipment water jetting cooler | |
| CN103624224A (en) | Belt casting machine of lead belt for preparation of storage battery grid | |
| CN202356599U (en) | Slide gate nozzle device for preventing occurrence of vortex | |
| CN202180180U (en) | Thin strip continuous casting stream distribution device | |
| CN201776413U (en) | Water nozzle of continuous casting tundish | |
| CN208230812U (en) | Crystallizer copper pipe with nozzle | |
| CN201997688U (en) | Runner structure for kirsite pressure casing mould | |
| CN203030884U (en) | Multihole type immersive type water port for continuous casting | |
| CN202943239U (en) | Efficient bar casting machine for tin bar casting | |
| CN203109189U (en) | Novel crystallizer of slab continuous casting pouring square billet | |
| CN204892890U (en) | Copper alloy wire smelts and uses high -efficient heat exchange device | |
| CN205887997U (en) | Alloying metal horizontal continuous casting casting blank form quality crystallization control ware | |
| CN104439132A (en) | Cooling roller for producing noncrystalloid flimsy alloy line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 401329 No. 5-6, building 2, No. 66, Nongke Avenue, Baishiyi Town, Jiulongpo District, Chongqing Patentee after: MCC CCID information technology (Chongqing) Co.,Ltd. Address before: Building 1, No. 11, Huijin Road, North New District, Yubei District, Chongqing Patentee before: CISDI CHONGQING INFORMATION TECHNOLOGY Co.,Ltd. |