Wide-surface foot roller spraying equipment for crystallizer
By setting up a spraying mechanism and a spraying equipment controlled by solenoid valves on the wide-side foot roller of the crystallizer, the problem of cracks on the edge of the cast embryo is solved, and uniform cooling and high-quality production of the cast embryo are achieved.
Patent Information
- Application Number
- CN202422434117.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The prior art cannot cool the cast embryos conveyed on the wide-side foot roller of the crystallizer according to different cross-sectional widths, resulting in frequent cracks on the edges of the cast embryos.
A wide-side foot roller spraying equipment of crystallizer is designed. By setting up several spraying mechanisms on the conveying main pipeline, it is divided into the middle and edge areas, and the water volume is controlled through solenoid valves, and uniform cooling is achieved using a porous nozzle and an inclined nozzle to ensure uniform cooling of the upper and lower parts of the cast embryo surface.
The area cooling according to the cross-sectional width is achieved, reducing cracks on the edges of cast embryos and improving production quality.
Smart Images
Figure CN223171879U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of continuous casting, and specifically relates to a spray device for the wide face foot rolls of a mold. Background Technique
[0002] Corner cracks in continuous casting billets are a relatively common surface defect of casting billets. The most direct way to solve corner cracks is to increase the corner temperature. The measure to increase the corner temperature is to control the corner cooling intensity. Currently, relatively advanced casting machines in the industry can already achieve separate control of cooling in the bending section, the middle part, and the edges of the sector section, so as to separately control the corner cooling intensity of continuous casting billets. However, for the first cooling after the billet exits the mold, which cools the continuous casting billet conveyed by the mold foot rolls, there are few corresponding devices for cooling it, and most often manual spraying is used for the billet conveyed by the mold foot rolls.
[0003] At the current stage, during the spray cooling process of the billet conveyed by the wide face foot rolls of the mold, it is impossible to cool the billet conveyed on the foot rolls in different regions according to different cross-sectional widths, which affects the production quality of the billet and causes the phenomenon of edge cracks in the billet. Content of the Utility Model
[0004] The purpose of the utility model is to provide a spray device for the wide face foot rolls of a mold to solve at least one of the problems and defects mentioned in the above background technique.
[0005] Provide a spray device for the wide face foot rolls of a mold, including a support frame body. A mold foot roll is arranged on the support frame body. A main conveying pipeline is arranged on one side of the support frame body far away from the mold foot roll. A plurality of spraying mechanisms are evenly arranged on the main conveying pipeline along the length direction of the mold foot roll. In a specific embodiment, the number of divided areas of the spraying mechanism is determined according to the production cross-section, specifically twelve. The twelve spraying mechanisms are divided into two areas: the middle part and the edges. The two spraying mechanisms on the left and right are divided into the edges, and the eight spraying mechanisms in the middle are divided into the middle part. The water volume of the edge spraying mechanism and the middle spraying mechanism can be controlled separately. By using a plurality of spraying mechanisms to divide the mold foot roll into two areas, the middle part and the edges, for spray cooling treatment, it is possible to cool the billet conveyed on the mold foot roll in different regions according to different cross-sectional widths, improve the production quality of the billet, and reduce the phenomenon of edge cracks in the billet.
[0006] Furthermore, a first electromagnetic valve is arranged on the main conveying pipeline. The first electromagnetic valve is used to control the opening and closing of the main conveying pipeline. The first electromagnetic valve is installed on the main conveying pipeline to control the opening or closing of the entire cooling water, realizing automatic control. The opening and closing of the first electromagnetic valve can flexibly adjust the cooling intensity of different regions and optimize the cooling effect.
[0007] Further, the spraying mechanism includes a first spray pipe and a second spray pipe. Both the first spray pipe and the second spray pipe are fixedly connected to the main conveying pipeline. Second electromagnetic valves are provided on both the first spray pipe and the second spray pipe. The first spray pipe and the second spray pipe are controlled to open through the second electromagnetic valves, and are used for spraying the upper and lower parts of the cooling crystallizer foot rolls. The specific number of openings can be adjusted according to the cross-sectional width to adjust the number of spray pipes participating in cooling, so that corner cracks in different cross-sections can be controlled.
[0008] Further, the included angle between the first spray pipe and the second spray pipe is α. The first spray pipe and the second spray pipe are arranged at a certain inclination angle, which is convenient for the first spray pipe and the second spray pipe to spray cooling water on the upper and lower parts of the cooling crystallizer foot rolls. The first spray pipe and the second spray pipe can spray the upper and lower parts of the crystallizer foot rolls simultaneously, ensuring uniform distribution of the cooling water, avoiding overcooling or overheating in some areas, preventing quality problems caused by insufficient local cooling, ensuring that the upper and lower parts of the casting blank on the surface of the crystallizer foot rolls are evenly cooled, and effectively preventing stress concentration and possible cracks caused by uneven temperature.
[0009] Further, the included angle α is 20°, which is convenient for the first spray pipe and the second spray pipe to spray cooling water on the upper and lower parts of the cooling crystallizer foot rolls. The 20° included angle design can ensure that the spraying ranges of the two spray pipes overlap and cover the upper and lower areas of the surface of the crystallizer foot rolls. This included angle is neither too large to cause excessive dispersion of the cooling water nor too small to cause the water flow to be too concentrated in a certain part. Through such a moderate angle setting, the cooling water can be evenly distributed to the key positions of the crystallizer foot rolls, ensuring that the surface of the casting blank is cooled comprehensively and avoiding local overcooling or overheating.
[0010] Further, spray heads are fixedly connected to both the first spray pipe and the second spray pipe. The spray heads are multi-hole spray heads, which are convenient for the first spray pipe and the second spray pipe to spray cooling water. The multi-hole spray heads have multiple small holes, which enables the cooling water to be sprayed out in fine water flows from multiple directions. Compared with single-hole spray heads, the multi-hole spray heads can disperse the water flow into finer water flows and cover a larger area, thus ensuring that the upper and lower areas of the crystallizer foot rolls can evenly receive the cooling water. This uniform distribution reduces the phenomenon of local overcooling or overheating and prevents stress concentration or cracks from occurring in the casting blank during the cooling process.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] A number of spraying mechanisms are evenly arranged along the length direction of the mold foot rolls. The number of spraying mechanisms is divided into two areas, the middle and the edges. The left and right small parts of the spraying mechanisms are divided into the edges, and the majority of the middle spraying mechanisms are divided into the middle. The water volumes of the edge spraying mechanisms and the middle spraying mechanisms can be controlled separately. By opening the first valve on the main conveying pipeline, the mold foot rolls are divided into two areas, the middle and the edges, by means of a number of spraying mechanisms, and spray cooling treatment is carried out. It is possible to cool the continuously cast billets conveyed on the mold foot rolls in different regions according to different cross-sectional widths, improve the production quality of the continuously cast billets, and reduce the phenomenon of edge cracks in the continuously cast billets. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] For the convenience of those skilled in the art to understand, the present utility model will be further described below in conjunction with the accompanying drawings.
[0014] Figure 1 FIG. is an overall structural schematic diagram of a spray device for the wide face of a mold foot roll;
[0015] Figure 2 FIG. is a structural schematic diagram of the spraying mechanism provided by an embodiment of the present utility model.
[0016] In the figure: 1, support frame body; 2, mold foot roll; 3, main conveying pipeline; 4, spraying mechanism; 41, first spray pipe; 42, second spray pipe; 5, spray head; 6, first electromagnetic valve; 7, second electromagnetic valve. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model, that is, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings herein can be arranged and designed in various different configurations.
[0018] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative work fall within the scope of protection of the present utility model.
[0019] Please refer to Figure 1-2As shown in the figure, in the embodiment of the present utility model, a spray device for the wide surface foot rolls of a mold includes a support frame 1, on which a mold foot roll 2 is arranged. On the side of the support frame 1 away from the support foot roll, a main conveying pipeline 3 is provided, and the main conveying pipeline 3 conveys the cooling water to be sprayed. A number of spraying mechanisms 4 (the number can be two, three, four, etc.) are arranged on the main conveying pipeline 3, and the number of spraying mechanisms 4 is evenly arranged along the length direction of the mold foot roll 2 for spraying control in multiple areas;
[0020] In a specific embodiment, the number of divided areas of the spraying mechanism 4 is determined according to the production section, specifically twelve. The twelve spraying mechanisms 4 are divided into two areas: the middle and the edges. The two spraying mechanisms 4 on the left and right are divided into the edges, and the eight spraying mechanisms 4 in the middle are divided into the middle. The water volume of the edge spraying mechanisms 4 and the middle spraying mechanisms 4 can be controlled separately. By opening the first valve on the main conveying pipeline 3, the mold foot roll 2 is divided into two areas, the middle and the edges, by using a number of spraying mechanisms 4 for spray cooling treatment, which can cool the cast billets conveyed on the mold foot roll 2 in different areas according to different section widths, improve the production quality of the cast billets, and reduce the phenomenon of edge cracks in the cast billets.
[0021] In one embodiment, please refer to Figure 1 and Figure 2 As shown in the figure, a first electromagnetic valve 6 is arranged on the main conveying pipeline 3. The first electromagnetic valve 6 is used to control the opening and closing of the main conveying pipeline 3. The first electromagnetic valve 6 is installed on the main conveying pipeline 3 to control the opening or closing of the cooling water, realizing automatic control. The opening and closing of the first electromagnetic valve 6 can flexibly adjust the cooling intensity of different areas and optimize the cooling effect.
[0022] In one embodiment, please refer to Figure 1 and Figure 2 As shown in the figure, the spraying mechanism 4 includes a first spray pipe 41 and a second spray pipe 42. Both the first spray pipe 41 and the second spray pipe 42 are fixedly connected to the main conveying pipeline 3. The specific positions of the first spray pipe 41 and the second spray pipe 42 are respectively arranged above and below the mold foot roll 2. Second electromagnetic valves 7 are arranged on both the first spray pipe 41 and the second spray pipe 42. The first spray pipe 41 and the second spray pipe 42 are controlled to open through the second electromagnetic valves 7 for spraying and cooling the upper and lower parts of the mold foot roll 2. The specific number of openings can adjust the number of spray pipes participating in cooling according to the section width, so as to control the corner cracks of different sections.
[0023] In one embodiment, please refer to Figure 1 and Figure 2As shown, the included angle between the first nozzle 41 and the second nozzle 42 is α. The first nozzle 41 and the second nozzle 42 are arranged at a certain inclination angle, which is convenient for the first nozzle 41 and the second nozzle 42 to spray cooling water to cool the upper and lower parts of the mold foot roll 2. The first nozzle 41 and the second nozzle 42 can spray the upper and lower parts of the mold foot roll 2 simultaneously, ensuring uniform distribution of the cooling water, avoiding overcooling or overheating in some areas, preventing quality problems caused by insufficient local cooling, ensuring that the upper and lower parts of the surface of the casting blank on the mold foot roll 2 are evenly cooled, and effectively preventing stress concentration and possible cracks caused by uneven temperature.
[0024] In one embodiment, please refer to Figure 1 and Figure 2 As shown, the preferred included angle α is 20°. The included angle α between the first nozzle 41 and the second nozzle 42 is 20°, so as to facilitate the first nozzle 41 and the second nozzle 42 to spray and cool the upper and lower parts of the mold foot roll 2. The 20° included angle design can ensure that the spraying ranges of the two nozzles overlap and cover the upper and lower regions of the surface of the mold foot roll 2. This included angle is neither too large to cause the cooling water to disperse too widely nor too small to cause the water flow to be too concentrated in a certain part. Through such a moderate angle setting, the cooling water can be evenly distributed to the key positions of the mold foot roll 2, ensuring that the surface of the casting blank is cooled comprehensively and avoiding local overcooling or overheating.
[0025] In one embodiment, please refer to Figure 1 and Figure 2 As shown, spray heads 5 are fixedly connected to both the first nozzle 41 and the second nozzle 42. The spray heads 5 are multi-hole spray heads, which are convenient for the first nozzle 41 and the second nozzle 42 to spray cooling water. The multi-hole spray heads have multiple small holes, which enables the cooling water to be sprayed out in fine water flows from multiple directions. Compared with single-hole spray heads, the multi-hole spray heads can disperse the water flow into finer water flows and cover a larger area, so as to ensure that the upper and lower regions of the mold foot roll 2 can evenly receive the cooling water. This uniform distribution reduces the phenomenon of local overcooling or overheating and prevents stress concentration or cracks from occurring in the casting blank during the cooling process.
[0026] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution. As long as they do not deviate from the structure of the invention or exceed the scope defined by this claim book, they should fall within the protection scope of the present invention.
Claims
1. A spray equipment for the wide face foot rolls of a mold, comprising a support frame body (1), characterized in that, A mold foot roll (2) is provided on the support frame body (1). A main conveying pipeline (3) is provided on one side of the support frame body (1) away from the mold foot roll (2). A plurality of spraying mechanisms (4) are uniformly arranged on the main conveying pipeline (3) along the length direction of the mold foot roll (2).
2. The spray device for the wide-face foot rolls of a mold according to claim 1, wherein A first electromagnetic valve (6) is provided on the main conveying pipeline (3).
3. The spray equipment for the wide-face foot rolls of a mold according to claim 1, characterized in that The spraying mechanism (4) includes a first spray pipe (41) and a second spray pipe (42). Both the first spray pipe (41) and the second spray pipe (42) are fixedly connected to the main conveying pipeline (3). Second electromagnetic valves (7) are provided on both the first spray pipe (41) and the second spray pipe (42).
4. A crystallizer wide-face foot roll spraying device according to claim 3, characterized in that, The included angle between the first spray pipe (41) and the second spray pipe (42) is α.
5. The crystallizer wide-face foot roll spraying device according to claim 4, characterized in that, The included angle α is 20°.
6. The spray equipment for the wide-face foot rolls of a mold according to claim 3, characterized in that Spray heads (5) are fixedly connected to both the first spray pipe (41) and the second spray pipe (42).