A continuous casting billet water cooling device

Abstract

The utility model discloses a continuous casting billet water cooling device relates to continuous casting billet cooling technical field, include: cover body, spray subassembly, at least part of spray subassembly is located in cover body, when continuous casting billet is located cover body inboard, spray subassembly is to continuous casting billet spray cooling, condensed water collection subassembly, at least part of condensed water collection subassembly is located in cover body to collect condensed water, flow guide portion, the utility model discloses through cover body closed spray area, makes the water vapor that spray produces concentrates in cover body, and directional recovery condensed water through water guide groove, condensed water collection subassembly, avoids water resources and wastes because of evaporation and transpiration, and the utilization of cooling water is greatly promoted, simultaneously, and the closed structure prevents the evaporation moisture and makes the equipment component long -term wet, effectively avoids the equipment corrosion, prolongs the service life of equipment, realizes condensed water efficient recovery and the effect of equipment life extension.

Description

Technical Field

[0001] This application relates to the field of continuous casting billet cooling technology, and in particular to a continuous casting billet water cooling device. Background Technology

[0002] Continuously cast billets are semi-finished products produced in the steel industry through continuous casting processes, and are widely used in the pre-rolling process of various steel products. During continuous casting, high-temperature billets need to be rapidly cooled to solidify and form, making water-cooling devices a core piece of equipment on continuous casting production lines due to their excellent heat exchange efficiency.

[0003] Currently, the most common water cooling devices for continuous casting billets mainly adopt an open spray system, which means that a spray pipe frame with nozzles is arranged above or to the side of the continuous casting billet conveying path. When the high-temperature continuous casting billet passes through, cooling water is delivered to the spray pipe frame by a pressurized pump group and then sprayed onto the billet surface through the nozzles. Although this direct contact cooling method can achieve rapid cooling, a violent vaporization phenomenon will occur when the cooling water comes into contact with the high-temperature billet.

[0004] During the production process, some of the cooling water vaporizes instantly upon contact with the surface of the continuously cast billet and is released into the workshop environment in the form of water vapor. The existing open spraying system lacks steam recovery function, and the water lost due to vaporization cannot be reused, resulting in a serious waste of water resources during the water cooling process of the continuously cast billet. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a water-cooling device for continuous casting billets, which solves the problem that existing open spraying systems lack steam recovery functions, resulting in significant water waste during the water cooling process of continuous casting billets.

[0006] This application provides a water-cooling device for continuously cast billets, comprising: a cover; a spray assembly, at least a portion of which is disposed within the cover, wherein when the continuously cast billet is located inside the cover, the spray assembly sprays water onto the billet to cool it down; a condensate collection assembly, at least a portion of which is disposed within the cover to collect condensate; and a guide section, disposed within the cover, wherein water vapor condenses into water and flows into the condensate collection assembly along the guide channel of the guide section.

[0007] In one feasible implementation, the condensate collection assembly includes two sets of condensate collection sub-assemblies symmetrically arranged on the cover, with an air inlet gap between the two sets of condensate collection sub-assemblies. Each condensate collection sub-assembly includes a water collection hopper, which is disposed on the inner wall of one side of the cover.

[0008] In one feasible implementation, the condensate collection sub-assembly further includes: a water collection box, which is disposed on the outer wall of one side of the cover; and a third connecting pipe, one end of which is connected to the water collection hopper and the other end of which is connected to the water collection box.

[0009] In one feasible implementation, the condensate collection sub-assembly further includes a drain pipe, one end of which is connected to the water collection box, and the other end is detachably provided with a sealing element.

[0010] In one feasible implementation, the spray assembly consists of two sets of spray sub-assemblies symmetrically arranged on the hood. Each spray sub-assembly includes: a water pump, which is disposed on the hood; a spray pipe frame, which is disposed on the inner wall of the hood; and a first connecting pipe, one end of which is connected to the spray pipe frame and the other end of which is connected to the outlet of the water pump.

[0011] In one feasible implementation, the spray pipe frame includes: two closed-end pipes disposed on the inner wall of the cover; multiple second connecting pipes disposed between the two closed-end pipes; multiple water spray elements connected to the side of the closed-end pipes near the continuously cast billet; and one end of the first connecting pipe connected to either the closed-end pipe or the second connecting pipe.

[0012] In one feasible implementation, one side of the cover is an open side, and the guide portion is a water guide groove opened on the inner wall opposite to the open side.

[0013] In one feasible implementation, both the inner wall opposite to the opening side and the water guide groove are arc-shaped.

[0014] In one feasible implementation, the cover has openings on two side walls adjacent to and opposite to the opening side.

[0015] In one feasible implementation, two ear plates are provided on the other two side walls of the cover that are adjacent to and opposite to the opening side.

[0016] This utility model provides a water cooling device for continuously cast billets, which has the following beneficial effects:

[0017] This invention encloses the spray area with a cover, concentrating the water vapor generated by the spray within the cover. The condensate is then directionally recovered via a water guide channel and a condensate collection component, preventing water waste due to evaporation and significantly improving cooling water utilization. At the same time, the enclosed structure prevents the evaporated moisture from keeping the equipment components moist for extended periods, effectively preventing equipment corrosion and extending equipment lifespan. This achieves both efficient condensate recovery and equipment life extension. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0019] Figure 1 A schematic diagram of the internal structure of a water-cooling device for continuously cast billets provided in an embodiment of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of a water-cooling device for continuously cast billets provided in an embodiment of the present utility model.

[0021] In the diagram: 1. Cover; 101. Ear plate; 102. Opening; 103. Guide section; 104. Overflow hole; 105. Opening side; 2. Spray assembly; 21. Spray sub-assembly; 201. Water pump; 202. First connecting pipe; 203. Spray pipe rack; 2031. Second connecting pipe; 2032. Closed end pipe; 2033. Water spray component; 3. Condensate collection assembly; 31. Condensate collection sub-assembly; 301. Water collection hopper; 302. Water collection box; 303. Third connecting pipe; 304. Drain pipe; 3041. Sealing component; 4. Air inlet gap. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the following description, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more, and "at least one" means one or more.

[0024] Furthermore, in this application, directional terms such as "upper," "lower," "inner," and "outer" are defined relative to the indicated placement of the components in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the placement of the components in the accompanying drawings.

[0025] Currently, the most common water cooling devices for continuous casting billets mainly adopt an open spray system, which means that a spray pipe frame with nozzles is arranged above or to the side of the continuous casting billet conveying path. When the high-temperature continuous casting billet passes through, cooling water is delivered to the spray pipe frame by a pressurized pump group and then sprayed onto the billet surface through the nozzles. Although this direct contact cooling method can achieve rapid cooling, a violent vaporization phenomenon will occur when the cooling water comes into contact with the high-temperature billet.

[0026] During the production process, some of the cooling water vaporizes instantly upon contact with the surface of the continuously cast billet and is released into the workshop environment in the form of water vapor. The existing open spraying system lacks steam recovery function, and the water lost due to vaporization cannot be reused, resulting in a serious waste of water resources during the water cooling process of the continuously cast billet.

[0027] In addition, the evaporated moisture, while carrying away the heat from the continuously cast billet, also keeps the related equipment components in a wet state, which can easily lead to corrosion of the equipment components over a long period of time, thereby reducing the service life of the related equipment.

[0028] This utility model provides a water cooling device for continuous casting billets, which solves the problem that the existing open spraying system lacks steam recovery function, resulting in serious water waste during the water cooling process of continuous casting billets and reduced service life of related equipment.

[0029] The embodiments of this application will now be described with reference to the accompanying drawings.

[0030] This application provides a water-cooling device for continuously cast billets. Please refer to [link / reference]. Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the internal structure of a water-cooling device for continuously cast billets provided in an embodiment of the present invention. Figure 2 This is a three-dimensional structural diagram of a water-cooling device for continuously cast billets provided in an embodiment of the present utility model. The device includes: a cover 1, a spray assembly 2, a condensate collection assembly 3, and a flow guide 103.

[0031] The cover 1 can be an installation cover, made of PVC material to ensure its high-temperature resistance. In use, the cover 1 is installed on the upper side of the conveying equipment (not shown in the figure) of the continuous casting billet production line. When the conveying equipment transports the heat-treated continuous casting billet to the inside of the cover 1, the spray assembly 2 sprays cooling water onto the billet to perform water cooling treatment, accelerating the cooling and forming speed of the billet. The water vapor generated during the water cooling process floats upwards and accumulates at the guide section 103. After the water vapor condenses into water, the condensate flows through the guide section 103 into the condensate collection assembly 3. The condensate collection assembly 3 collects the condensate, thereby achieving water recycling and reuse, avoiding water waste.

[0032] The guide section 103 is installed inside the cover 1. After water vapor condenses into water, it flows into the condensate collection assembly 3 along the guide channel of the guide section 103. The guide section 103 can realize the directional and efficient collection of condensate, preventing condensate from dripping randomly inside the cover 1. By collecting condensate in a centralized manner, it is convenient to carry out unified treatment or recycling of condensate, thereby improving the utilization efficiency of water resources. At the same time, it can prevent water vapor or condensate from contacting other equipment components, which can effectively prevent other related equipment from causing moisture corrosion or electrical failure, thereby ensuring the stability and safety of equipment operation.

[0033] In some embodiments, one side of the cover 1 is an open side 105, and the guide portion 103 is a water guide groove opened on the inner wall opposite to the open side 105. For example, when the cover 1 is installed on the conveying equipment of the continuous casting billet production line, the bottom of the cover 1 is the open side 105. It can be understood that the inner wall opposite to the bottom open side 105 of the cover 1 is the top inner wall of the cover 1, and the water guide groove is opened on the top inner wall of the cover 1. When the cooling water comes into contact with the continuous casting billet, the water vapor generated accumulates at the top of the inner cavity of the cover 1. By opening the water guide groove on the top inner wall of the cover 1, when the water vapor is pre-cooled into water, the condensate flows directionally along the water guide groove, so that the condensate is recycled into the condensate collection component 3, avoiding the condensate from falling randomly and not being able to be collected in a concentrated manner, and realizing the recycling of condensate. At the same time, the directional recycling of condensate can also prevent condensate from dripping from the bottom open side 105 to the conveying equipment below, avoiding the equipment from rusting, component damage and other problems caused by long-term contact with condensate, and indirectly extending the service life of the conveying equipment.

[0034] In some embodiments, the inner wall and the water guide groove opposite to the opening side 105 are both arc-shaped. Through the guiding effect of the arc-shaped curved surface of the top wall of the cover 1, the condensate can flow naturally along the arc surface, avoiding the formation of water accumulation dead corners in the water guide groove, and improving the smoothness of condensate flow and collection efficiency. In addition, the arc-shaped structure can reduce the impact and residue of condensate on the groove wall during the flow process, reduce the risk of blockage in the water guide groove due to scale accumulation, and the arc-shaped inner wall is easier to clean and maintain than the right-angle inner wall, indirectly reducing equipment failures caused by groove blockage and inconvenient cleaning.

[0035] In some embodiments, openings 102 are provided on two side walls adjacent to and opposite to the opening side 105 of the cover 1. The openings 102 are used for the continuous casting billet to pass through the cover 1 conveniently on the continuous casting billet production line. The shape and size of the openings 102 can be adapted to the shape and size of the continuous casting billet, so that the continuous casting billet can pass through the cover 1 smoothly along the production line conveying path without interrupting the conveying process or adjusting the continuous casting billet conveying trajectory, effectively adapting to the continuous operation requirements of the production line and ensuring production efficiency. After the continuous casting billet passes through, the openings 102 can be reasonably adapted to the outer contour of the continuous casting billet, for example, by leaving a small gap, to reduce the air flow between the inside of the cover 1 and the external environment, so as to avoid external impurities entering the cover 1 and affecting the purity of the condensate.

[0036] In some embodiments, two ear plates 101 are provided on the other two side walls adjacent to and opposite to the opening side 105 of the cover 1. The cover 1 is installed on the upper side of the continuous casting billet production line through the ear plates 101, and the installation method can be bolt fixing. By providing ear plates 101 on the corresponding side walls of the cover 1 as the installation carrier, the cover 1 can be prevented from shifting or falling off due to vibration during the operation of the production line by relying on the stable connection between the ear plates 101 and the production line, thus providing a stable structural foundation for the efficient recovery of condensate. In addition, the bolt fixing installation method not only has high connection strength and can adapt to the working conditions of long-term operation of the production line, but also facilitates the subsequent disassembly, maintenance or position adjustment of the cover 1. For example, when it is necessary to clean the water guide channel or maintain the internal components of the cover 1, the cover 1 can be quickly removed by disassembling the bolts without modifying the main structure of the production line, thus reducing the difficulty of operation and maintenance.

[0037] At least a portion of the condensate collection component 3 is disposed inside the housing 1 to collect condensate. By placing the core part of the condensate collection component 3 inside the housing 1, the collection component can be closer to the condensation area of ​​water vapor inside the housing 1 (such as the water guide groove on the inner wall of the top), shortening the path of condensate from formation to collection, reducing drip loss of condensate during transportation, and significantly improving collection efficiency. At the same time, the built-in collection component can prevent it from being exposed to the external environment of the production line, preventing external dust, oil and other impurities from contaminating the collected condensate, ensuring the cleanliness of the condensate, and creating favorable conditions for subsequent recycling.

[0038] In some embodiments, the condensate collection assembly 3 includes two sets of symmetrically arranged condensate collection sub-assemblies 31 on the cover 1, with an air inlet gap 4 between the two sets of condensate collection sub-assemblies 31. Each condensate collection sub-assembly 31 includes a water collection hopper 301, which is disposed on the inner wall of one side of the cover 1. The bottom of the water collection hopper 301 can be inclined. The two sets of symmetrical condensate collection sub-assemblies 31 can simultaneously receive condensate from the water guide channels on both sides of the cover 1, significantly expanding the condensate collection range, avoiding condensate overflow caused by unilateral collection, and further improving condensate recovery efficiency. The inclined design at the bottom guides the condensate to flow towards the lower part of the water collection hopper 301 under its own weight, facilitating the discharge of the condensate from the water collection hopper 301. The air inlet gap 4 between the two sets of condensate collection sub-components 31 located inside the cover 1 provides a smooth upward channel for the water vapor generated by the spray cooling inside the cover 1, ensuring that the water vapor can smoothly reach the top of the inner cavity of the cover 1 and condense in contact with the inner wall of the top. This avoids the water vapor accumulating in the lower part of the cover 1 due to obstruction of the channel, which would prevent the formation of effective condensate. This ensures both the amount of condensate generated and the more uniform distribution of water vapor inside the cover 1, and achieves efficient recycling in conjunction with the water guide trough.

[0039] In some embodiments, the condensate collection sub-assembly 31 further includes: a water collection box 302, which is disposed on the outer wall of one side of the cover 1; a third connecting pipe 303, one end of which is connected to the water collection hopper 301 and the other end of which is connected to the water collection box 302; the water collection box 302 and the cover 1 can be bolted together to facilitate the installation and maintenance of the water collection box 302; an overflow hole 104 is provided on the cover 1 at a position corresponding to the bottom of the inner cavity of the water collection hopper 301, and one end of the third connecting pipe 303 is connected to the overflow hole 104 so that the condensate in the water collection hopper 301 flows into the water collection box 302 through the third connecting pipe 303; the water collection hopper 301 is collected by the third connecting pipe 303. The connection with the external water collection box 302 allows the condensate collected by the water collection hopper 301 to be directionally transported to the external water collection box 302 through a pipeline, preventing condensate from accumulating or leaking inside the enclosure 1. At the same time, the external water collection box 302 allows operators to directly observe the amount of condensate collected, and determine whether cleaning or relocation is needed without opening the enclosure 1, greatly improving the convenience of operation and maintenance. In addition, the external water collection box 302 can be flexibly designed in terms of capacity and installation position according to the needs of the production line, which can not only meet the temporary storage needs of condensate under different working conditions, but also avoid the space occupation and weight increase caused by setting a large-capacity water collection structure inside the enclosure 1, ensuring that the overall structure of the enclosure 1 is lightweight and adaptable to the spatial layout of the production line.

[0040] In some embodiments, the condensate collection sub-assembly 31 further includes: a drain pipe 304, one end of which is connected to the water collection box 302, and the other end is detachably provided with a sealing member 3041; exemplaryly, one end of the drain pipe 304 is connected to a position near the bottom of the water collection box 302; connecting the drain pipe 304 to a position near the bottom of the water collection box 302 ensures that the condensate stored in the water collection box 302 can be completely drained, avoiding water accumulation in the box due to the drain outlet being too high, preventing long-term water retention and corrosion of the inner wall of the water collection box 302, and ensuring the integrity of the condensate recovery volume, further improving the water resource recovery efficiency; when it is necessary to temporarily store condensate, the drain pipe 304 is sealed by the sealing member 3041 to prevent condensate leakage; when the condensate in the water collection box 302 reaches a preset amount or needs to be discharged and recovered, the sealing member 3041 can be removed to quickly complete the drainage.

[0041] At least a portion of the spray assembly 2 is disposed within the cover 1. When the continuously cast billet is located inside the cover 1, the spray assembly 2 sprays water onto the billet to cool it down. The water outlet component of the spray assembly 2 is disposed within the cover 1. When the continuously cast billet is located inside the cover 1, the water outlet component can directly spray water onto the billet to cool it down. This allows the spray water flow to act directly on the surface of the continuously cast billet, avoiding spray deviation caused by external airflow and dust interference when the water outlet component is external, and ensuring that the water flow uniformly covers the continuously cast billet. In addition, the water outlet component being built into the cover 1 can reduce the diffusion of water mist to the outside of the cover 1 during the spraying process, reduce the moisture corrosion of water mist on the surrounding equipment of the production line, and at the same time, allow the water vapor generated after the spray water comes into contact with the continuously cast billet to be completely retained inside the cover 1, creating a closed environment for the subsequent directional recovery of condensate through the water guide channel, improving the condensate recovery efficiency, and avoiding water waste.

[0042] In some embodiments, the spray assembly 2 consists of two sets of spray sub-assemblies 21 symmetrically arranged on the cover 1. Each spray sub-assembly 21 includes: a water pump 201, which is mounted on the cover 1; a spray pipe frame 203, which is mounted on the inner wall of the cover 1; and a first connecting pipe 202, one end of which is connected to the spray pipe frame 203 and the other end of which is connected to the outlet of the water pump 201. By spraying cooling water onto the continuous casting billet simultaneously from both sides of the cover 1 through the two sets of symmetrical spray sub-assemblies 21, it can be ensured that the water flow uniformly covers the surface of the continuous casting billet, avoiding the problem of uneven cooling caused by unilateral spraying, effectively preventing stress cracks in the continuous casting billet due to local temperature differences, and ensuring the forming quality of the continuous casting billet. By embedding the spray pipe frame 203 inside the inner wall of the cover 1, the interference of the external environment on the pipe frame and spray nozzles can be reduced, dust can be avoided from clogging the spray nozzles, and water mist can be prevented from directly impacting external equipment during the spraying process, reducing the risk of moisture and corrosion of surrounding components.

[0043] In some embodiments, the spray pipe rack 203 includes: two closed-end pipes 2032 disposed on the inner wall of the cover 1; multiple second connecting pipes 2031 connected between the two closed-end pipes 2032; multiple water spray elements 2033 connected to the side of the closed-end pipes 2032 near the continuously cast billet; one end of the first connecting pipe 202 connected to either the closed-end pipe 2032 or the second connecting pipe 2031; the multiple second connecting pipes 2031 can achieve uniform distribution of cooling water in the pipe rack, making the water pressure in the closed-end pipes 2032 consistent. With the arrangement of multiple water spray elements 2033, water can be sprayed synchronously from both sides of the continuously cast billet and multiple points, expanding the spray coverage area, improving the cooling uniformity, and preventing defects such as cracks in the continuously cast billet due to local temperature changes. Meanwhile, the first connecting pipe 202 can be flexibly connected to the closed end pipe 2032 or the second connecting pipe 2031, which can adapt to different cover sizes and continuous casting billet specifications, eliminating the need for separate pipe rack design and reducing costs.

[0044] This invention encloses the spray area with a cover 1, concentrating the water vapor generated by the spray within the cover 1. The condensate is then directionally recovered via a water guide channel and a condensate collection component 3, preventing water resources from being wasted due to evaporation and significantly improving the utilization rate of cooling water. At the same time, the enclosed structure prevents the evaporated moisture from keeping the equipment components moist for a long time, effectively avoiding equipment corrosion and extending the service life of the equipment. This achieves the effect of efficient condensate recovery and equipment life extension.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-cooling device for continuously cast billets, characterized in that, include: Cover (1); A spray assembly (2) is provided at least in the cover (1). When the continuous casting billet is located inside the cover (1), the spray assembly (2) sprays the continuous casting billet to cool it down. A condensate collection assembly (3), at least a portion of which is disposed within the cover (1) to collect condensate; The guide section (103) is located inside the cover (1). After water vapor condenses into water, it flows into the condensate collection assembly (3) along the guide channel of the guide section (103).

2. The water-cooling device for continuously cast billets according to claim 1, characterized in that, The condensate collection assembly (3) includes two sets of condensate collection sub-assemblies (31) symmetrically arranged on the cover (1), and an air inlet gap (4) is provided between the two sets of condensate collection sub-assemblies (31). The condensate collection sub-assembly (31) includes a water collection hopper (301), which is located on the inner wall of one side of the cover (1).

3. The water-cooling device for continuously cast billets according to claim 2, characterized in that, The condensate collection component (31) also includes: A water collection box (302) is disposed on the outer wall of one side of the cover (1); The third connecting pipe (303) is connected at one end to the water collecting hopper (301) and at the other end to the water collecting box (302).

4. The water-cooling device for continuously cast billets according to claim 3, characterized in that, The condensate collection component (31) also includes: A drain pipe (304) is provided, one end of which is connected to the water collection box (302), and the other end is detachably provided with a sealing component (3041).

5. The water-cooling device for continuously cast billets according to claim 1, characterized in that, The spray assembly (2) consists of two sets of spray sub-assemblies (21) symmetrically arranged on the cover (1), and the spray sub-assemblies (21) include: A water pump (201) is mounted on the cover (1); Spray pipe rack (203), the spray pipe rack (203) is disposed on the inner wall of the cover (1); The first connecting pipe (202) has one end connected to the spray pipe frame (203) and the other end connected to the outlet of the water pump (201).

6. The water-cooling device for continuously cast billets according to claim 5, characterized in that, The spray pipe rack (203) includes: Two closed-end tubes (2032) are provided on the inner wall of the cover (1); Multiple second connecting pipes (2031) are connected and disposed between two closed end pipes (2032); Multiple water spray elements (2033) are connected to the side of the closed end pipe (2032) near the continuously cast billet; One end of the first connecting pipe (202) is connected to the closed end pipe (2032) or the second connecting pipe (2031).

7. The water-cooling device for continuously cast billets according to claim 1, characterized in that, One side of the cover (1) is an open side (105), and the guide part (103) is a water guide groove opened on the inner wall opposite to the open side (105).

8. A water-cooling device for continuously cast billets according to claim 7, characterized in that, The inner wall opposite to the opening side (105) and the water guide groove are both arc-shaped.

9. A water-cooling device for continuously cast billets according to claim 7, characterized in that, The cover (1) has openings (102) on its two side walls that are adjacent to and opposite to the opening side (105).

10. A water-cooling device for continuously cast billets according to claim 9, characterized in that, Two ear plates (101) are provided on the other two side walls adjacent to and opposite to the opening side (105) of the cover (1).

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