Cooling control equipment and method for fan-shaped section of continuous casting machine

Abstract

The invention relates to the technical field of steel metallurgy steelmaking continuous casting, and provides a cooling control device of a continuous casting machine fan-shaped section, the cooling control device is arranged on a machine frame of a continuous casting machine, the continuous casting machine is provided with a roller row and a nozzle installation frame, the roller row and the nozzle installation frame are both arranged on the machine frame, and the cooling control device is located between the roller row and the nozzle installation frame. The water retaining piece is arranged on the rack and located between the roller row and the nozzle mounting frame, and the water retaining piece is provided with a first containing groove; the telescopic water baffle is movably arranged in the first containing groove and used for blocking water flow sprayed out of the nozzle on the nozzle mounting frame. The output end of the automatic adjusting mechanism is arranged on the telescopic water baffle and used for driving the telescopic water baffle to move. By means of the technical scheme, the problem that the corner of a narrow-section steel billet is prone to being subjected to gathered water flow, internal stress is generated, and then the quality of the corner of the steel billet is poor is solved.

Description

Technical Field

[0001] The invention relates to the technical field of steel metallurgy, steelmaking and continuous casting, and in particular to a cooling control device and method for a sector of a continuous casting machine. Background Art

[0002] The continuous casting machine is an indispensable equipment in the steel industry. It can transform liquid steel into solid slabs. The crystallizer serves as a primary cooling device, which can initially cool the molten steel to form a slab shell. The slab shell is pulled down to the fan-shaped secondary cooling device for further cooling. After cooling and straightening, it finally forms a slab of a certain specification. The zero section in the fan-shaped section is the first cooling equipment for the slab to enter the secondary cooling equipment system. The cooling effect of the zero section plays a vital role in the overall quality of the slab. Generally, there are 17 rows of cooling nozzles in the zero section, and the number of nozzles in each row is alternatingly distributed as "5, 4". The nozzles spray cooling water of a certain pressure in a fan shape. When producing narrow-section steel billets, a row of nozzles with 5 water nozzles is set. The corners of the steel billets will be strongly cooled by the superimposed fan-shaped mist sprayed from the two nozzles on the edge. At the same time, the water flow sprayed from the edge is easy to gather at the edge of the equipment, and the gathered water flow often flows to the corners of the steel billet in streams, which intensifies the cooling intensity of the corners of the steel billet. When the corners of the steel billet are subjected to a higher cooling intensity, their internal structure cannot shrink evenly, thereby generating internal stresses. These stresses may cause quality problems at the corners of the steel billet. In addition, too fast a cooling rate may cause uneven cooling of the steel billet, resulting in uneven organization. This uneven organizational structure may reduce the mechanical properties of the steel billet, such as tensile strength and elongation, thereby affecting its performance.

[0003] In addition, although the sensors in the prior art can detect the width of the billet and transmit signals to control the start and stop of the nozzle, the actual production site has harsh conditions such as high temperature, water vapor, and molten steel radiation. These factors will seriously interfere with the normal operation of the sensor and affect the accuracy and stability of its data collection. The production process of the continuous casting machine is a continuous and rapid dynamic process. The billet is constantly pulled down and cooled. The installation position and angle of the sensor are difficult to ensure that the cooling of the billet corner can be effectively monitored throughout the production process, and it is not realistic to frequently adjust the sensor position and parameters. This makes it difficult for the sensor to adapt to this complex and changeable production environment, and thus cannot be effectively used in the key link of ensuring the appropriate cooling intensity of the billet corner. Therefore, other means are needed to solve the problem that the corner of the billet is easily cooled and water flow gathers when producing narrow-section billets. Summary of the invention

[0004] The present invention provides a cooling control device and method for a fan-shaped segment of a continuous casting machine, which solves the problem in the related art that the corners of narrow-section steel billets are susceptible to concentrated water flow and generate internal stress, thereby affecting the quality of the steel billet corners.

[0005] The technical solution of the present invention is as follows: A cooling control device for a continuous casting machine segment is arranged on a frame of the continuous casting machine, wherein the continuous casting machine has a roller array and a nozzle mounting frame, wherein the roller array and the nozzle mounting frame are both arranged on the frame, and the cooling control device is located between the roller array and the nozzle mounting frame, and the cooling control device comprises: A water retaining member, arranged on the frame and located between the roller array and the nozzle mounting frame, the water retaining member having a first accommodating groove; A telescopic water baffle plate is movably arranged in the first receiving groove, and the telescopic water baffle plate is used to block the water flow sprayed from the nozzle on the nozzle mounting frame; An automatic adjustment mechanism, wherein the output end of the automatic adjustment mechanism is arranged on the telescopic water baffle plate and is used to drive the telescopic water baffle plate to move.

[0006] As a further technical solution, the receiving groove has an opening, and the automatic adjustment mechanism includes: A linear drive member, arranged on the frame and located on one side of the water retaining member; Connecting rod one and connecting rod two, connecting rod one and connecting rod two are hingedly arranged, connecting rod one is also hingedly connected to the output end of the linear driving member, connecting rod two is also hingedly connected to the telescopic water baffle through the opening, and the linear driving member drives the telescopic water baffle to move through connecting rod one and connecting rod two.

[0007] As a further technical solution, the automatic adjustment mechanism further includes: A mounting bracket, disposed on the frame and located below the linear drive member; A movable adjustment member is movably arranged on the mounting bracket, and one end of the movable adjustment member extends into the roller array to abut against a side end of the steel billet; A switch component, wherein the switch component is movably arranged on the mounting bracket, and after moving, the start button of the linear drive component is pushed to open or close the linear drive component, and the moving direction of the movable adjustment component is defined as being parallel to the x-axis direction, and the moving direction of the switch component is parallel to the z-axis direction. The switch component has a second accommodating groove, and a guide protrusion is provided in the second accommodating groove. The movable adjustment component has an extended protrusion, and the extended protrusion extends into the second accommodating groove. After the extended protrusion moves with the movable adjustment component, it pushes the guide protrusion to move the switch component.

[0008] As a further technical solution, the automatic adjustment mechanism further includes: A first retaining ring, arranged on the movable adjusting member; The elastic member 1 has one end acting on the retaining ring 1 and the other end acting on the mounting bracket, and is used to provide a force for the movable adjustment member to move.

[0009] As a further technical solution, the automatic adjustment mechanism further includes: The second retaining ring is arranged on the movable adjusting member and is used for abutting against the mounting bracket to limit the movable adjusting member.

[0010] As a further technical solution, the guide protrusion is located in the middle position of the second accommodating groove. The guide protrusion is triangular in shape and has guide surface one and guide surface two. When the extended protrusion passes through the guide surface one or the guide surface two, it pushes the switch member to move.

[0011] As a further technical solution, one end of the movable adjustment member extending into the roller array has a heat-resistant coating.

[0012] As a further technical solution, the end of the accommodating groove 1 has a retaining edge, and the end of the telescopic water baffle has a limiting block, and the limiting block and the retaining edge abut against each other to limit the telescopic water baffle.

[0013] As a further technical solution, the water retaining member and the telescopic water retaining plate are both arc-shaped.

[0014] As a further technical solution, a cooling control method for a continuous casting machine sector is also proposed, using the cooling control device for a continuous casting machine sector to control the water flow sprayed onto the steel billet.

[0015] The working principle and beneficial effects of the present invention are: In the present invention, the automatic adjustment mechanism can accurately control the telescopic water baffle, and flexibly adjust the flow direction and coverage of the water flow sprayed from the nozzle according to the actual position and cooling requirements of the steel billet, so as to achieve accurate cooling of the steel billet. This helps to improve the cooling quality of the steel billet and reduce product defects caused by uneven cooling, such as internal cracks, uneven structure, etc., thereby improving the quality stability and qualified rate of continuous casting products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0017] Figure 1 This is a schematic diagram of the three-dimensional first-viewing angle structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional second viewing angle structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional third viewing angle structure of the present invention; Figure 4 It is a schematic diagram of the top view structure of the present invention; Figure 5 It is a structural schematic diagram of the automatic adjustment mechanism in the present invention; Figure 6 It is a schematic diagram of the structure of the water retaining member in the present invention; Figure 7 It is a schematic diagram of the structure of the telescopic water retaining plate in the present invention.

[0018] In the figure: 1. frame, 2. roller array, 3. nozzle mounting frame, 4. water retaining member, 5. accommodating groove 1, 6. telescopic water retaining plate, 7. automatic adjustment mechanism, 8. opening, 9. linear drive member, 10. connecting rod 1, 11. connecting rod 2, 12. mounting bracket, 13. movable adjustment member, 14. switch member, 15. accommodating groove 2, 16. guide protrusion, 17. extended protrusion, 18. retaining ring 1, 19. elastic member 1, 20. retaining ring 2, 21. guide surface 1, 22. guide surface 2, 23. retaining edge, 24. limit block. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0020] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0021] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] like Figure 1 to Figure 7 As shown, a cooling control device for a continuous casting machine fan-shaped segment is proposed, which is arranged on a frame 1 of the continuous casting machine. The continuous casting machine has a roller array 2 and a nozzle mounting frame 3, both of which are arranged on the frame 1, and the cooling control device is located between the roller array 2 and the nozzle mounting frame 3. The cooling control device includes: a water baffle 4 is arranged on the frame 1, between the roller array 2 and the nozzle mounting frame 3, and the water baffle 4 has a receiving groove 5; a telescopic water baffle plate 6 is movably arranged in the receiving groove 5, and the telescopic water baffle plate 6 is used to block the water flow sprayed from the nozzle on the nozzle mounting frame 3; the output end of the automatic adjustment mechanism 7 is arranged on the telescopic water baffle plate 6, which is used to drive the telescopic water baffle plate 6 to move.

[0024] In this embodiment, when the sensor is difficult to apply to the continuous casting production environment, in order to solve the problem in the related technology that the corners of the narrow-section steel billet are easily affected by the gathered water flow and generate internal stress, which in turn leads to the quality problem of the corners of the steel billet, a water baffle 4 and a telescopic water baffle 6 are installed on the frame 1. When producing narrow-section steel billets, the telescopic water baffle 6 will extend from the water baffle 4 to block the nozzles located at the edges on both sides, thereby preventing the corners of the narrow-section steel billet from being affected by the water flow or mist ejected from the nozzle, and also avoiding water flow gathering, thereby preventing the corners of the narrow-section steel billet from being subjected to high cooling intensity and excessively fast cooling speed, resulting in the internal structure being unable to shrink uniformly, thereby causing quality problems caused by internal stress.

[0025] Specifically, during the operation of the continuous casting machine, the billet moves forward under the guidance of the roller array 2 for continuous casting production. Nozzles are installed on both sides of the roller array 2, and the nozzles spray water mist or water flow toward the surface of the billet to cool the billet. When producing narrow-section billets, since their corners are relatively sensitive, if they are impacted by the water flow or water mist sprayed by the nozzles on the nozzle mounting frame 3, internal stress is easily generated due to high cooling intensity and excessively fast cooling speed, thereby affecting the quality of the billet corners.

[0026] At this time, the cooling control device located between the roller array 2 and the nozzle mounting frame 3 begins to function. The water baffle 4 is fixed on the frame 1 and has a receiving groove 5. The telescopic water baffle 6 is movably arranged in the receiving groove 5. The telescopic water baffle 6 can be extended to effectively block the water flow sprayed from the nozzle. A water guide plate can also be arranged on the frame 1. On the one hand, the water guide plate can receive and guide the water flow falling on the telescopic water baffle 6. On the other hand, the cooling water gathered at the edge can be guided away from the corner of the billet, thereby finally reducing the cooling effect of the corner of the billet and avoiding corner cracks and uneven structure of the billet.

[0027] Furthermore, there is an opening 8 on the accommodating groove 1 5, and the automatic adjustment mechanism 7 includes a linear drive member 9 arranged on the frame 1 and located on one side of the water baffle 4; a connecting rod 10 and a connecting rod 2 11 are hingedly arranged, and the connecting rod 10 is also hinged at the output end of the linear drive member 9, and the connecting rod 2 11 is also hinged on the telescopic water baffle 6 through the opening 8, and the linear drive member 9 drives the telescopic water baffle 6 to move through the connecting rod 10 and the connecting rod 2 11.

[0028] In this embodiment, in order to realize automatic extension or retraction of the telescopic water baffle 6, an automatic adjustment mechanism 7 is also provided, and the linear drive member 9 is an electric push rod or a cylinder, which drives the movement of the telescopic water baffle 6 through the connecting rod 10 and the connecting rod 2 11.

[0029] Furthermore, the automatic adjustment mechanism 7 also includes: a mounting bracket 12 is arranged on the frame 1 and is located below the linear drive member 9; a movable adjustment member 13 is movably arranged on the mounting bracket 12, and one end of the movable adjustment member 13 extends into the roller array 2 to abut against the side end of the steel billet; a switch member 14 is movably arranged on the mounting bracket 12, and after moving, it pushes the start button of the linear drive member 9 to open or close the linear drive member 9, and the moving direction of the movable adjustment member 13 is defined as parallel to the x-axis direction, and the moving direction of the switch member 14 is parallel to the z-axis direction. The switch member 14 has a second accommodating groove 15, and the second accommodating groove 15 has a guide protrusion 16. The movable adjustment member 13 has an extended protrusion 17, and the extended protrusion 17 extends into the second accommodating groove 15. After the extended protrusion 17 moves with the movable adjustment member 13, it pushes the guide protrusion 16 to move the switch member 14.

[0030] In this embodiment, in order to realize that the telescopic water retaining plate 6 can be automatically controlled to extend or retract according to the width of the steel billet, a movable adjustment member 13 and a switch member 14 are further provided. As the billet moves on the roller array 2, the movable adjusting member 13 extends into the roller array 2 at one end and abuts against the side end of the billet. For example, when the production of wide-section billets is switched to the production of narrow-section billets, the movable adjusting member 13 moves in a direction parallel to the x-axis, and the extended protrusion 17 on the movable adjusting member 13 follows the movement in the accommodating groove 15, and when passing through the guide surface 1 21 of the guide protrusion 16, it will push the guide protrusion 16, so that the switch member 14 moves in a direction parallel to the z-axis. When the switch member 14 moves to a certain position, the start button of the linear drive member 9 is pressed to start the linear drive member 9. After the linear drive member 9 is started, its output end drives the connecting rod 10 to move. Since the connecting rod 10 is hinged to the connecting rod 2 11, and the connecting rod 2 11 passes through the opening 8 and is hinged to the telescopic water baffle 6, the movement of the connecting rod 10 is converted into the movement of the telescopic water baffle 6 in the accommodating groove 5 through the connecting rod 2 11, and the telescopic water baffle 6 is pushed out to block the water flow.

[0031] When the production of narrow-section steel billets is switched to the production of wide-section steel billets, the steel billets will push the movable adjusting member 13 to move in the opposite direction parallel to the x-axis. When the telescopic water baffle 6 passes through the guide surface 22 of the guide protrusion 16, it will also push the guide protrusion 16, thereby causing the switch member 14 to move in the direction parallel to the z-axis. When the switch member 14 moves to a certain position, the start button of the linear drive member 9 will be pressed again to turn off the linear drive member 9. After the linear drive member 9 is turned off, the telescopic water baffle 6 will be driven to reset and no longer block the water flow.

[0032] In addition, when the continuous steel billets have a certain offset in the width direction, the automatic adjustment mechanism 7 still has the same function. The telescopic water baffle 6 is adjusted to extend or not according to the actual width of the produced steel billets, thereby changing the blocking range of the water flow sprayed from the nozzle, avoiding excessive impact of water flow on areas that do not require cooling.

[0033] The switch 14 can be reset by a spring, one end of the spring is connected to the switch 14, and the other end is connected to the mounting bracket 12. The spring can provide a force for resetting the switch 14. When the switch 14 is pushed by the movable adjustment member 13, it can return to the initial position with the help of the spring.

[0034] Furthermore, the automatic adjustment mechanism 7 also includes a retaining ring 18 disposed on the movable adjustment member 13; one end of an elastic member 19 acts on the retaining ring 18, and the other end acts on the mounting bracket 12, so as to provide a force for the movable adjustment member 13 to move.

[0035] In this embodiment, the elastic member 19 can be a spring. When the production of wide-section steel billets is switched to the production of narrow-section steel billets, the spring can provide a moving force for the movable adjustment member 13, ensuring that the movable adjustment member 13 can respond to the position change of the steel billet in time and stably perform the adjustment action.

[0036] Furthermore, the automatic adjustment mechanism 7 further includes a second retaining ring 20 disposed on the movable adjustment member 13 for abutting against the mounting bracket 12 to limit the movable adjustment member 13 .

[0037] In this embodiment, the retaining ring 20 can abut against the mounting bracket 12 to limit the movable adjustment member 13 to prevent it from excessively moving out of the normal working range.

[0038] Furthermore, the guide protrusion 16 is located in the middle of the second accommodating groove 15 . The guide protrusion 16 is triangular in shape and has a first guide surface 21 and a second guide surface 22 . When the extended protrusion 17 passes through the first guide surface 21 or the second guide surface 22 , it pushes the switch member 14 to move.

[0039] In this embodiment, when the production of wide-section steel billets is switched to the production of narrow-section steel billets, the movable adjusting member 13 moves in a direction parallel to the x-axis under the action of the elastic member 19, and the extended protrusion 17 will first pass through the guide surface 21, pushing the switch member 14 to move in a direction parallel to the x-axis, pressing the start button of the linear drive member 9, opening the linear drive member 9, and driving the telescopic water baffle 6 to extend; when the production of narrow-section steel billets is switched to the production of wide-section steel billets, the steel billets will push the movable adjusting member 13 to move in the opposite direction parallel to the x-axis, and the extended protrusion 17 will first pass through the guide surface 22, pushing the switch member 14 to move in the same direction parallel to the x-axis, pressing the start button of the linear drive member 9 again, closing the linear drive member 9, and driving the telescopic water baffle 6 to retract.

[0040] Furthermore, one end of the movable adjustment member 13 extending into the roller array 2 has a heat-resistant coating.

[0041] In this embodiment, Furthermore, the end of the accommodating groove 1 5 is provided with a retaining edge 23 , and the end of the telescopic water baffle plate 6 is provided with a limiting block 24 , and the limiting block 24 and the retaining edge 23 abut against each other to limit the telescopic water baffle plate 6 .

[0042] In this embodiment, the heat-resistant coating can effectively resist the high-temperature radiation and heat conduction of the steel billet, thereby extending the service life of the movable adjustment member 13 .

[0043] Furthermore, the water retaining member 4 and the telescopic water retaining plate 6 are both arc-shaped.

[0044] In this embodiment, the arc shape can effectively block the fan-shaped water flow, and gather the water flow together to discharge it from the water guide plate.

[0045] A cooling control method for a continuous casting machine sector segment uses a cooling control device for the continuous casting machine sector segment to control the water flow sprayed toward the steel billet.

[0046] In this embodiment, during the continuous casting process, when the billet moves in the roller array 2, one end of the movable adjustment member 13 contacts the side end of the billet. Since the position of the billet in the roller array 2 may change, for example, when casting a narrow-section billet, the corner position of the billet is relatively special. When the corner of the billet is close to an area where water flow may gather, the billet will push the movable adjustment member 13 to move in a direction parallel to the x-axis. The extended protrusion 17 of the movable adjustment member 13 moves with the movable adjustment member 13 in the receiving groove 2 15. When the extended protrusion 17 contacts the guide surface 1 21 or the guide surface 2 22 of the guide protrusion 16, it will push the switch member 14 to move in a direction parallel to the z-axis. After the switch member 14 moves, it will push the start button of the linear drive member 9, thereby starting the linear drive member 9. When the linear drive 9 is working, its output end drives the connecting rod 10 to move, and the movement of the connecting rod 10 drives the connecting rod 2 11 hinged thereto to move, and the connecting rod 2 11 passes through the opening 8 to drive the telescopic water baffle 6 to move in the receiving groove 1 5. After the telescopic water baffle 6 is extended, it can block the water flow that may be gathered at the corner of the steel billet from the nozzle on the nozzle mounting frame 3, thereby avoiding the corner of the narrow section steel billet from generating internal stress due to the gathered water flow, and ensuring the quality of the steel billet corner. When the position of the steel billet changes so that the movable adjustment member 13 returns to the initial position, under the action of the elastic member 19, the movable adjustment member 13 returns to its original position, and the switch member 14 also returns to its original position, the linear drive 9 stops working, and the telescopic water baffle 6 returns to its initial position, waiting for the next adjustment action according to the change in the position of the steel billet.

[0047] Through the precise control of the telescopic water baffle 6 by the automatic adjustment mechanism 7, the flow direction and coverage of the water flow sprayed from the nozzle can be flexibly adjusted according to the actual position and cooling requirements of the steel billet, so as to achieve precise cooling of the steel billet. This helps to improve the cooling quality of the steel billet and reduce product defects caused by uneven cooling, such as internal cracks, uneven structure, etc., thereby improving the quality stability and qualified rate of continuous casting products.

[0048] Since the cooling control device can automatically adapt to the position change of the steel billet on the roller array 2, it can be applied to the continuous casting production of steel billets of different specifications and sizes. Whether the steel billet is wider or narrower, or if the steel billet deviates to a certain extent during the continuous casting process, the device can adjust the cooling water flow in time without frequent manual intervention, which greatly improves the production flexibility and adaptability of the continuous casting machine, reduces the excessive requirements for the positioning accuracy of the steel billet before production, and improves production efficiency.

[0049] The heat-resistant coating of the movable adjustment member 13 can effectively protect it from high temperature damage and extend its service life. At the same time, the limit design of the telescopic water baffle 6 and the reasonable layout and structure of the entire automatic adjustment mechanism 7 reduce the collision and friction between the components, reduce the wear and failure rate of the equipment, thereby reducing the maintenance and replacement costs of the equipment, improving the service life and reliability of the entire continuous casting machine, and ensuring the continuity and stability of continuous casting production.

[0050] By precisely controlling the direction and coverage of water flow, unnecessary water waste is avoided and the utilization rate of water resources is improved. In the continuous casting production process, the cooling water consumption is large. The rational use of water resources not only helps to reduce production costs, but also meets the requirements of environmental protection and energy conservation, and has positive significance for sustainable development.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A cooling control device for a continuous casting machine segment, arranged on a frame (1) of the continuous casting machine, the continuous casting machine comprising a roller array (2) and a nozzle mounting frame (3), the roller array (2) and the nozzle mounting frame (3) both being arranged on the frame (1), the cooling control device being located between the roller array (2) and the nozzle mounting frame (3), characterized in that: The cooling control device comprises: A water retaining member (4) is arranged on the frame (1) and is located between the roller array (2) and the nozzle mounting frame (3), the water retaining member (4) having a first accommodating groove (5); a telescopic water baffle (6) movably arranged in the first receiving groove (5), the telescopic water baffle (6) being used to block the water flow sprayed from the nozzle on the nozzle mounting frame (3); An automatic adjustment mechanism (7), wherein an output end of the automatic adjustment mechanism (7) is arranged on the telescopic water baffle plate (6) and is used to drive the telescopic water baffle plate (6) to move.

2. A cooling control device for a continuous casting machine segment according to claim 1, characterized in that: The first receiving groove (5) has an opening (8), and the automatic adjustment mechanism (7) comprises: A linear drive member (9) is arranged on the frame (1) and is located on one side of the water retaining member (4); A connecting rod 1 (10) and a connecting rod 2 (11), wherein the connecting rod 1 (10) and the connecting rod 2 (11) are hingedly arranged, the connecting rod 1 (10) is also hingedly connected to the output end of the linear drive member (9), the connecting rod 2 (11) is also hingedly connected to the telescopic water baffle (6) through the opening (8), and the linear drive member (9) drives the telescopic water baffle (6) to move through the connecting rod 1 (10) and the connecting rod 2 (11).

3. A cooling control device for a continuous casting machine segment according to claim 2, characterized in that: The automatic adjustment mechanism (7) further comprises: A mounting bracket (12) disposed on the frame (1) and located below the linear drive member (9); A movable adjustment member (13) is movably arranged on the mounting bracket (12), one end of the movable adjustment member (13) extends into the roller array (2) to abut against a side end of the steel billet; A switch component (14), wherein the switch component (14) is movably arranged on the mounting bracket (12), and after moving, pushes a start button of the linear drive component (9) to turn on or off the linear drive component (9), wherein the moving direction of the movable adjustment component (13) is defined as being parallel to the x-axis direction, and the moving direction of the switch component (14) is defined as being parallel to the z-axis direction, wherein the switch component (14) has a second accommodating groove (15), wherein the second accommodating groove (15) has a guide protrusion (16), and the movable adjustment component (13) has an extended protrusion (17), wherein the extended protrusion (17) extends into the second accommodating groove (15), and after the extended protrusion (17) moves following the movable adjustment component (13), it pushes the guide protrusion (16) to move the switch component (14).

4. A cooling control device for a continuous casting machine segment according to claim 3, characterized in that: The automatic adjustment mechanism (7) further comprises: A retaining ring (18) is arranged on the movable adjustment member (13); An elastic member (19) has one end acting on the retaining ring (18) and the other end acting on the mounting bracket (12), and is used to provide a force for moving the movable adjustment member (13).

5. A cooling control device for a continuous casting machine segment according to claim 4, characterized in that: The automatic adjustment mechanism (7) further comprises: A second retaining ring (20) is provided on the movable adjustment member (13) and is used to abut against the mounting bracket (12) to limit the position of the movable adjustment member (13).

6. A cooling control device for a continuous casting machine segment according to claim 3, characterized in that: The guide protrusion (16) is located in the middle of the second accommodating groove (15); the guide protrusion (16) is triangular in shape and has a first guide surface (21) and a second guide surface (22); when the extended protrusion (17) passes through the first guide surface (21) or the second guide surface (22), it pushes the switch member (14) to move.

7. The cooling control device for a continuous casting machine segment according to claim 3, characterized in that: One end of the movable adjustment member (13) extending into the roller array (2) has a heat-resistant coating.

8. The cooling control device for a continuous casting machine segment according to claim 1, characterized in that: The end of the accommodating groove 1 (5) is provided with a retaining edge (23), and the end of the telescopic water retaining plate (6) is provided with a limiting block (24), and the limiting block (24) and the retaining edge (23) are in contact with each other to limit the position of the telescopic water retaining plate (6).

9. The cooling control device for a continuous casting machine segment according to claim 1, characterized in that: The water retaining member (4) and the telescopic water retaining plate (6) are both arc-shaped.

10. A method for controlling cooling of a continuous casting machine segment, using the cooling control device for a continuous casting machine segment as claimed in claim 1 to control the water flow sprayed onto the steel billet.

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