CN215431458U - After-cooling device of short-process continuous casting withdrawal and straightening unit - Google Patents
After-cooling device of short-process continuous casting withdrawal and straightening unit Download PDFInfo
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- CN215431458U CN215431458U CN202121834943.6U CN202121834943U CN215431458U CN 215431458 U CN215431458 U CN 215431458U CN 202121834943 U CN202121834943 U CN 202121834943U CN 215431458 U CN215431458 U CN 215431458U
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Abstract
The utility model belongs to the technical field of continuous casting operation areas of steel plants, and particularly relates to a post-cooling device of a short-process continuous casting withdrawal and straightening unit. The method can reduce the surface temperature of the casting blank, and does not produce bending during traveling crane lifting, thereby ensuring the quality of the casting blank. Comprises a casting blank cooling device arranged on a middle roller way between a flame cutting machine and a tension leveler. The cooling device comprises a plurality of spray heads arranged on the left side, the right side and the upper side of the casting blank, the spray heads are arranged on a water pipe support, and the water pipe support is arranged on the roller way; the spray head is connected with a water supply source through a water pipe bracket.
Description
Technical Field
The utility model belongs to the technical field of continuous casting operation areas of steel plants, and particularly relates to a post-cooling device of a short-process continuous casting withdrawal and straightening unit.
Background
The short-flow continuous casting of small square billets is built for reducing the investment cost of building a factory building and equipment, and a casting blank in the continuous casting process is positioned in a billet drawing and straightening stage and must be straightened with a liquid center to ensure that the generation of central cracks of the casting blank is reduced. Nowadays, the production conditions of a small square billet continuous casting machine are high drawing speed, short flow, fast rhythm and fixed length and frequent cutting; this ensures that the slab cuts are cut normally during cutting. And the straightening temperature of the casting blank with high drawing speed is too high, and because the fire cutting machine is closer to the drawing and straightening machine, when the casting blank passes through the fire cutting machine, the liquid core is not completely solidified, and the accident of casting blank cutting leakage often occurs. Therefore, a device for secondary cooling of the casting blank is arranged on the roller way between the flame cutting machine and the withdrawal and straightening machine.
Disclosure of Invention
The utility model provides a post-cooling device of a short-process continuous casting withdrawal and straightening machine, aiming at the defects in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme that the device is characterized by comprising a casting blank cooling device arranged on a middle roller way between a flame cutting machine and a tension leveler; the cooling device comprises a plurality of spray heads arranged on the left side, the right side and the upper side of the casting blank, the spray heads are arranged on a water pipe support, and the water pipe support is arranged on the roller way; the spray head is connected with a water supply source through a water pipe bracket.
Furthermore, a wastewater recovery disc for receiving water is arranged below the roller way.
Furthermore, a water outlet is arranged at the bottom of the wastewater recovery disc and is connected with a water source through a water return pipe to form water supply and return circulation.
Furthermore, the water pipe support comprises a plurality of support units arranged in parallel, each support unit comprises a left side pipe and a right side pipe which are vertically arranged, and the water pipe support also comprises an upper side pipe positioned between the two side pipes, wherein the first end of the upper side pipe is communicated with the upper part of the left side pipe, and the second end of the upper side pipe is communicated with the upper part of the right side pipe; the left side pipe and the right side pipe are arranged on the roller way and on two sides of the casting blank.
Furthermore, the nozzles of the left side pipe, the right side pipe and the upper side pipe are arranged at equal intervals, and the directions of the nozzles face the casting blank.
Furthermore, the water pipe support is connected with a water supply source through a water supply pipeline, and the water supply pipeline comprises a water outlet pipe communicated with the water source, a longitudinal pipe communicated with the water outlet pipe, a transverse pipe communicated with the longitudinal pipe, and two side water pipes connected with the transverse pipe; a first side water pipe of the two side water pipes is communicated with the front end water inlet pipe, and a second side water pipe of the two side water pipes is communicated with the rear end water inlet pipe; the front end inlet tube and the rear end inlet tube are both connected with a water distribution pipe, the water distribution pipe is connected with a plurality of upper side pipes through a plurality of branch pipes, and one branch pipe corresponds to one upper side pipe.
Furthermore, a temperature sensor is arranged on the side water pipe.
Furthermore, each branch pipe is provided with an electrically controlled switch valve.
Further, the water supply source includes a water tank connected to the water outlet pipe by a water pump.
Furthermore, the water outlet pipe is vertically arranged, the water outlet pipe is vertical to a longitudinal pipe, the longitudinal pipe is vertical to a transverse pipe, a side water pipe is vertical to the transverse pipe, and the side water pipe is respectively vertical to the front end water inlet pipe and the rear end water inlet pipe; the front end water inlet pipe is parallel to the rear end water inlet pipe.
Compared with the prior art, the utility model has the beneficial effects.
The straightening machine needs to be straightened with a liquid core during straightening, the utility model can reduce the surface temperature of the casting blank, and the casting blank is not bent during travelling and lifting, thereby ensuring the quality of the casting blank.
Drawings
The utility model is further described with reference to the following figures and detailed description. The scope of the utility model is not limited to the following expressions.
FIG. 1 is a schematic view of a cooling apparatus according to embodiment 1.
Fig. 2 is a schematic side view of fig. 1.
In the figure, 1 is a casting blank, 2 is a spray head, 3 is an upper side pipe, 4 is a wastewater recovery disc, 5 is a roller way support edge, 6 is a right side pipe, 7 is a left side pipe, 8 is a switch valve, 9 is a branch pipe, 10 is a water diversion pipe, 11 is a rear end water inlet pipe, 12 is a front end water inlet pipe, 13 is a water tank, 14 is a water pump, 15 is a water outlet pipe, 16 is a longitudinal pipe, 17 is a transverse pipe, 18 is a side water pipe, 19 is a temperature sensor, 20 is a water outlet, 21 is a roller way, and 22 is a water return pipe.
Detailed Description
As shown in fig. 1-2, embodiment 1: the device is used for secondary cooling under the high drawing speed of short-process small square billet continuous casting in a continuous casting operation area of a steel plant. The device specifically comprises a casting blank 1 cooling device arranged on an intermediate roller way between a flame cutting machine and a withdrawal and straightening machine; the cooling device comprises a plurality of spray heads 2 arranged on the left side, the right side and the upper side of a casting blank 1, the spray heads 2 are arranged on a water pipe support, and the water pipe support is arranged on the roller way; the spray head 2 is connected with a water supply source through a water pipe bracket. The water supply comprises a water tank 13, which tank 13 is connected to a water outlet pipe 15 by means of a water pump 14. Generally, the water source is cold water or ice water. Has better cooling effect on the casting blank 1. And a wastewater recovery disc 4 for receiving water is arranged below the roller way. After the spray head 2 sprays the casting blank 1, water flows down from the casting blank 1 and enters the wastewater recovery disc 4. The bottom of the wastewater recovery disc 4 is provided with a drainage port 20, and the drainage port 20 is connected with a water source through a return pipe 22 to form water supply and return circulation. And a temperature sensor 19 is also arranged on the circulating water path, and when the temperature is higher than a certain threshold value, the water in the water tank 13 is replaced by cold water.
Preferably, the water pipe support comprises a plurality of support units arranged in parallel, each support unit comprises a left side pipe 7 and a right side pipe 6 which are vertically arranged, the water pipe support also comprises an upper side pipe 3 positioned between the two side pipes, the first end of the upper side pipe 3 is communicated with the upper part of the left side pipe 7, and the second end of the upper side pipe 3 is communicated with the upper part of the right side pipe 6; the left side pipe 7 and the right side pipe 6 are arranged on the roller way and on two sides of the casting blank 1. The left side pipe 7, the right side pipe 6 and the plurality of spray heads 2 of the upper side pipe 3 are arranged at equal intervals, and the directions of the spray heads 2 face the casting blank 1. The left side pipe 7, the right side pipe 6 and the upper side pipe 3 form an H-shaped structure, are erected above the casting blank 1 and on the edge 5 of the roller way support (roller way fixing part), and do not travel along with the roller way.
Preferably, the water pipe support is connected with a water supply source through a water supply pipeline, and the water supply pipeline comprises a water outlet pipe 15 communicated with the water source, a longitudinal pipe 16 communicated with the water outlet pipe 15, a horizontal pipe 17 communicated with the longitudinal pipe 16, and two side water pipes 18 connected with the horizontal pipe 17; a first side water pipe 18 of the two side water pipes 18 is communicated with the front end water inlet pipe 12, and a second side water pipe 18 of the two side water pipes 18 is communicated with the rear end water inlet pipe 11; the front end water inlet pipe 12 and the rear end water inlet pipe 11 are both connected with a water distribution pipe 10, the water distribution pipe 10 is connected with a plurality of upper side pipes 3 through a plurality of branch pipes 9, wherein one branch pipe 9 corresponds to one upper side pipe 3. An electric control switch valve 8 is arranged on each branch pipe 9, and spraying is conveniently controlled.
More preferably, the water outlet pipe 15 is vertically arranged, the water outlet pipe 15 is perpendicular to the longitudinal pipe 16, the longitudinal pipe 16 is perpendicular to the transverse pipe 17, the lateral water pipe 18 is perpendicular to the transverse pipe 17, and the lateral water pipe 18 is perpendicular to the front end water inlet pipe 12 and the rear end water inlet pipe 11 respectively; the front inlet pipe 12 is parallel to the rear inlet pipe 11. This arrangement makes the space compact and space saving.
Production link and cooling water of billet continuous casting blank 1: 1. the continuous casting tundish receives molten steel from a ladle, the tundish divides the flow to cast in a crystallizer to form a billet shell, the billet is cooled by two cold water, the billet is straightened, the billet is cut into a fixed length, and the billet is rolled. In order to improve the fixed-length cutting zero accident of the casting blank 1 at the continuous casting and fast drawing speed, a secondary cooling water device positioned behind a tension leveler is additionally arranged. The cooling effect that the casting blank 1 passes through the tension leveler and then is rapidly cooled when the casting machine is at a high tension speed can be achieved, and the cutting and leakage accidents at the position of a fire cutting machine at the section cut of the casting blank 1 are eliminated.
2. The straightening machine needs to straighten with a liquid center when straightening, the short-flow small square billet continuous casting ensures that a notch is not cut and leaked when cutting, and the surface temperature of the casting blank 1 can be reduced, and the casting blank does not bend when being lifted by a crane.
3. In the straightening stage, the liquid core straightening is performed, the straightening temperature of the casting blank 1 is high, the cutting distance of the casting blank 1 is close to that of a flame cutting machine, the cutting leakage of the section of the casting blank 1 during cutting is easy to cause series accident reactions: equipment damage (affecting the service life of the equipment), personnel injury (causing scalding and burning), and continuous casting production stop. Therefore, the secondary cooling device of the middle roller way does not influence the quality of the casting blank 1.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the utility model.
Claims (10)
1. The back cooling device of the short-process continuous casting withdrawal and straightening machine is characterized in that: comprises a casting blank cooling device arranged on an intermediate roller way between a flame cutting machine and a tension leveler;
the cooling device comprises a plurality of spray heads arranged on the left side, the right side and the upper side of the casting blank, the spray heads are arranged on a water pipe support, and the water pipe support is arranged on the roller way; the spray head is connected with a water supply source through a water pipe bracket.
2. The post-cooling device of a short-run continuous casting withdrawal and straightening unit according to claim 1, characterized in that: and a wastewater recovery disc for receiving water is arranged below the roller way.
3. The post-cooling device of a short-run continuous casting withdrawal and straightening unit according to claim 2, characterized in that: and a water outlet is arranged at the bottom of the wastewater recovery disc and is connected with a water source through a water return pipe to form water supply and return circulation.
4. The post-cooling device of a short-run continuous casting withdrawal and straightening unit according to claim 1, characterized in that: the water pipe support comprises a plurality of support units arranged in parallel, each support unit comprises a left side pipe and a right side pipe which are vertically arranged, and an upper side pipe positioned between the two side pipes, wherein the first end of the upper side pipe is communicated with the upper part of the left side pipe, and the second end of the upper side pipe is communicated with the upper part of the right side pipe; the left side pipe and the right side pipe are arranged on the roller way and on two sides of the casting blank.
5. The post-cooling device of a short-run continuous casting withdrawal and straightening unit according to claim 4, characterized in that: the left side pipe, the right side pipe and the plurality of spray heads of the upper side pipe are arranged at equal intervals, and the directions of the spray heads are all towards the casting blank.
6. The post-cooling device of a short-run continuous casting withdrawal and straightening unit according to claim 1, characterized in that: the water pipe support is connected with a water supply source through a water supply pipeline, and the water supply pipeline comprises a water outlet pipe communicated with the water source, a longitudinal pipe communicated with the water outlet pipe, a transverse pipe communicated with the longitudinal pipe, and two side water pipes connected with the transverse pipe; a first side water pipe of the two side water pipes is communicated with the front end water inlet pipe, and a second side water pipe of the two side water pipes is communicated with the rear end water inlet pipe; the front end inlet tube and the rear end inlet tube are both connected with a water distribution pipe, the water distribution pipe is connected with a plurality of upper side pipes through a plurality of branch pipes, and one branch pipe corresponds to one upper side pipe.
7. The post-cooling device of a short-run continuous casting withdrawal and straightening unit according to claim 6, characterized in that: and a temperature sensor is arranged on the side water pipe.
8. The post-cooling device of a short-run continuous casting withdrawal and straightening unit according to claim 6, characterized in that: each branch pipe is provided with an electric control switch valve.
9. The post-cooling device of a short-run continuous casting withdrawal and straightening unit according to claim 6, characterized in that: the water supply source comprises a water tank, and the water tank is connected with a water outlet pipe through a water pump.
10. The post-cooling device of a short-run continuous casting withdrawal and straightening unit according to claim 6, characterized in that: the water outlet pipe is vertically arranged, is vertical to the longitudinal pipe, is vertical to the transverse pipe, and is respectively vertical to the front end water inlet pipe and the rear end water inlet pipe; the front end water inlet pipe is parallel to the rear end water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121834943.6U CN215431458U (en) | 2021-08-07 | 2021-08-07 | After-cooling device of short-process continuous casting withdrawal and straightening unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121834943.6U CN215431458U (en) | 2021-08-07 | 2021-08-07 | After-cooling device of short-process continuous casting withdrawal and straightening unit |
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| CN215431458U true CN215431458U (en) | 2022-01-07 |
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| CN202121834943.6U Active CN215431458U (en) | 2021-08-07 | 2021-08-07 | After-cooling device of short-process continuous casting withdrawal and straightening unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041655A (en) * | 2022-07-04 | 2022-09-13 | 重庆钢铁股份有限公司 | Method for preventing casting blank from bending under high temperature |
| CN116984577A (en) * | 2023-07-28 | 2023-11-03 | 唐山松汀钢铁有限公司 | Casting blank cooling device for steelmaking continuous casting cooling bed and cooling method thereof |
-
2021
- 2021-08-07 CN CN202121834943.6U patent/CN215431458U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041655A (en) * | 2022-07-04 | 2022-09-13 | 重庆钢铁股份有限公司 | Method for preventing casting blank from bending under high temperature |
| CN116984577A (en) * | 2023-07-28 | 2023-11-03 | 唐山松汀钢铁有限公司 | Casting blank cooling device for steelmaking continuous casting cooling bed and cooling method thereof |
| CN116984577B (en) * | 2023-07-28 | 2024-03-29 | 唐山松汀钢铁有限公司 | Casting blank cooling device for steelmaking continuous casting cooling bed and cooling method thereof |
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