Disordered water secondary cooling device of continuous casting machine
By designing a water connection tray, nozzle and spring device in the continuous casting machine, the cooling problem caused by disordered water wetness is solved, and uniform cooling and defect reduction of the surface of the continuous casting billet is achieved.
Patent Information
- Application Number
- CN202422087367.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The surface of the continuous casting billet is unevenly cooled due to disorderly water wet, which can easily cause surface defects.
A device for secondary cooling of disordered water in a continuous casting machine is designed, including a water connection plate, a nozzle and a spring. The water connection tray is located inside the continuous casting blank and below the nozzle, and is installed on a spring. The spring sleeve is arranged on the outside of the continuous casting blank, and the nozzle is set to reduce the density in the extension direction of the sector section in sequence.
Through the design of the water connection tray, disordered water can be effectively exported to prevent it from being poured onto the continuous casting blank, ensuring uniform cooling of the surface of the continuous casting blank and reducing the occurrence of surface defects.
Smart Images
Figure CN222957464U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of iron and steel metallurgy, and particularly relates to a device for the disordered water in the secondary cooling of a continuous casting machine. Background Art
[0002] Most of the continuous casting machines in the iron and steel metallurgy industry are arc continuous casting machines. The continuous casting billets use the aerosol cooling method. The cooling water flowing from the upper area to the lower area and the water that drips onto the surface of the continuous casting billet due to the leakage of the tooling and does not meet the process requirements are usually called disordered water. Among them, the above-mentioned cooling water includes the disordered water that drops from the nozzles. The disordered water dripping onto the surface of the continuous casting billet causes uneven cooling of each area on the surface of the continuous casting billet. Especially for the crack-sensitive steel grades, it is easy to cause surface defects on the continuous casting billet. Among them, the disordered water also includes the abnormal leakage caused by the unstable operation and damage of the nozzles due to equipment abnormalities.
[0003] The prior art has the following defects and deficiencies: The disordered water wets the continuous casting billet, causing surface defects on the continuous casting billet. Summary of the Utility Model
[0004] The utility model provides a device for the disordered water in the secondary cooling of a continuous casting machine, which solves the problem that the disordered water wets the continuous casting billet and causes surface defects on the continuous casting billet.
[0005] To achieve the above object, the present application provides the following technical solutions:
[0006] A device for the disordered water in the secondary cooling of a continuous casting machine, characterized in that it includes: a water receiving tray, a nozzle, and a pipe spring; the water receiving tray is located inside the continuous casting billet and below the nozzle; the water receiving tray is installed on the pipe spring; the nozzle is installed on the pipe spring, and the pipe spring is communicated with the nozzle to provide water source for the nozzle; the pipe spring is sleeved outside the continuous casting billet, and a plurality of the pipe springs are arranged at intervals along the extending direction of the sector segment of the continuous casting billet.
[0007] Further, in the device as described above, the water receiving tray is a trough structure with openings at both ends; the openings at both ends of the water receiving tray are arranged in the width direction of the continuous casting billet; through holes are provided on the side plates of the trough structure, and the water receiving tray is fixedly installed on the pipe spring through the through holes.
[0008] Further, in the device as described above, the nozzles are arranged along the circumferential direction of the pipe spring.
[0009] Further, in the device as described above, a plurality of the pipe springs are arranged at equal intervals.
[0010] Further, in the device as described above, an inclination angle ∠α is provided between the trough structure and the horizontal plane, and the range of the inclination angle ∠α is 30 - 60°.
[0011] Further, in the device as described above, the sector segment extends along the arc direction from top to bottom, the density of the nozzles is arranged to decrease successively along the extending direction of the sector segment, and the density of the water receiving tray is arranged to decrease successively along the extending direction of the sector segment.
[0012] Further, in the device as described above, the lower end of the water receiving tray is exposed from the side of the continuous casting billet.
[0013] The technical solution provided by the embodiment of the present application has the following beneficial effects:
[0014] The water receiving tray ensures the normal discharge of disordered water, avoids the disordered water from splashing onto the continuous casting billet, and causes uneven cooling on the surface of the continuous casting billet. The device structure for the secondary cooling disordered water of a continuous casting machine provided by the present application is simple and efficient. Description of the Drawings
[0015] Figure 1 It is a schematic side view structure diagram of a device for the secondary cooling disordered water of a continuous casting machine provided by the present application;
[0016] Figure 2 It is a schematic structure diagram of the water receiving tray of a device for the secondary cooling disordered water of a continuous casting machine provided by the present application;
[0017] Figure 3 It is a vertical sectional view of a device for the secondary cooling disordered water of a continuous casting machine provided by the present application;
[0018] Explanation of the reference numerals in the drawings: water receiving tray 11, nozzle 12, pipe spring 13, continuous casting billet 14. Detailed Embodiment
[0019] To make the objectives, technical solutions and advantages of the present utility model clearer, the following will further describe the embodiments of the present utility model in detail with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance.
[0021] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, terms such as "installation", "equipped with", "connection", etc. should be understood in a broad sense. For example, "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0022] Refer to the attached Figures 1-3 A device for secondary cooling disordered water of a continuous casting machine provided by an embodiment of the present application will be introduced in detail. Among them, Figure 1 is a schematic side view structure of a device for secondary cooling disordered water of a continuous casting machine provided by the present application; Figure 2 is a schematic structure diagram of a water receiving tray of a device for secondary cooling disordered water of a continuous casting machine provided by an embodiment of the present application; Figure 3 is a vertical sectional view of a device for secondary cooling disordered water of a continuous casting machine provided by an embodiment of the present application.
[0023] Briefly speaking, the basic technical solution of the present utility model is briefly described as follows: A device for secondary cooling disordered water of a continuous casting machine includes: a water receiving tray 11, a nozzle 12, and a pipe spring 13; the water receiving tray 11 is located inside the continuous casting billet 14 and below the nozzle 12, and the water receiving tray 11 is installed on the pipe spring 13; the nozzle 12 is installed on the pipe spring 13, and the pipe spring 13 is in communication with the nozzle 12 to provide a water source for the nozzle 12. The pipe spring 13 is sleeved outside the continuous casting billet 14, and a plurality of pipe springs 13 are arranged at intervals along the extending direction of the segment of the continuous casting billet 14 in a fan shape.
[0024] The water receiving tray 11 ensures the normal discharge of disordered water, avoids the disordered water from splashing onto the continuous casting billet 14, and causes uneven cooling on the surface of the continuous casting billet 14. The water receiving tray 11 simply and efficiently solves the problem of uniform cooling of the continuous casting billet 14.
[0025] Next, a device for secondary cooling disordered water of a continuous casting machine provided by the present application will be discussed in detail.
[0026] As Figure 1As shown in the figure, a device for secondary cooling disordered water of a continuous casting machine provided by the present application includes: the water receiving tray 11, the nozzle 12, and the pipe spring 13 mentioned in the above embodiments; the water receiving tray 11 is located inside the continuous casting billet 14 and below the nozzle 12; specifically, one water receiving tray 11 is arranged below each nozzle 12 inside the continuous casting billet 14, the nozzle 12 is installed on the pipe spring 13, and the pipe spring 13 is connected to the nozzle 12 to provide water source for the nozzle 12; the pipe spring 13 is sleeved outside the continuous casting billet 14, and the continuous casting billet 14 extends from top to bottom along an arc (i.e., a segment of a sector), and a plurality of pipe springs 13 are arranged at intervals along the extending direction of the continuous casting billet 14. It should be noted that the direction close to the central axis of the continuous casting billet 14 is the inner side, and the direction away from the central axis of the continuous casting billet 14 is the outer side.
[0027] The water receiving tray 11 is a trough structure with openings at both ends, which is used to receive the disordered water above and export the disordered water; the water receiving tray 11 is arranged along the width direction of the continuous casting billet 14, that is to say, the openings at both ends of the water receiving tray 11 are arranged in the width direction of the continuous casting billet 14, which is convenient for exporting the disordered water and will not interfere with the uniform cooling of the continuous casting billet 14. The vertical cross-section of the water receiving tray 11 is a U-shaped structure, and perforations are provided on the side plates of the U-shaped structure (i.e., the trough structure), and the water receiving tray 11 is fixedly installed on the pipe spring 13 through the perforations. Specifically, a wire passes through the perforations to fixedly install the water receiving tray 11 on the pipe spring 13 surrounding the segment of the continuous casting machine. Of course, the water receiving tray 11 can also be fixedly installed on the pipe spring 13 surrounding the segment of the continuous casting machine by screwing through the perforations. In a specific embodiment, the water receiving tray 11 is located inside the continuous casting billet 14 and directly below the nozzle 12, that is to say, the vertical projection of the nozzle 12 is located inside the water receiving tray 11, which is convenient for the water receiving tray 11 to catch the abnormal water leakage caused by the damage of the nozzle 12.
[0028] The pipe spring 13 is annular. Preferably, a plurality of pipe springs 13 are arranged at equal intervals along the extending direction of the continuous casting billet 14. In order to cool the continuous casting billet 14, nozzles 12 are arranged along the circumferential direction of the pipe spring 13. Preferably, the nozzles 12 are evenly arranged along the circumferential direction of the pipe spring 13, which can uniformly cool the continuous casting billet 14; in a specific embodiment, 4 nozzles 12 are arranged on each pipe spring 13 and are evenly arranged around the continuous casting billet 14, that is to say, each of the front, back, left, and right faces of the continuous casting billet 14 corresponds to 1 nozzle 12 to uniformly cool the continuous casting billet 14. Specifically, the water receiving tray 11 in the lower pipe spring 13 can be used to receive the disordered water of the upper pipe spring 13, the nozzle 12 and the continuous casting billet 14, and the utilization rate of the water receiving tray 11 is very high. The front of the continuous casting billet 14 corresponds to the inner side of the continuous casting billet 14, and the back corresponds to the outer side of the continuous casting billet 14.
[0029] As Figure 2As shown in the figure. An inclination angle ∠α is provided between the trough structure (i.e., the water receiving tray) and the horizontal plane. The setting of the inclination angle ∠α can not only help the disordered water in the water receiving tray 11 to be discharged along the inclination angle ∠α by its own gravity, but also wash away the accumulated slag falling into the water receiving tray 11; the larger the inclination angle ∠α, the easier it is for the disordered water to be discharged. The range of the inclination angle ∠α is 30 - 60°, such as 30, 40, 45, 50, 60°. In a specific embodiment, the inclination angle ∠α between the water receiving tray 11 (trough structure) and the horizontal plane is 45°, ensuring the normal discharge of the disordered water and the accumulated slag in the trough of the water receiving tray 11 can be washed away by the received disordered water, ensuring the use effect of the water receiving tray 11, and achieving the effect of guiding away the disordered water and preventing the disordered water from dripping onto the continuous casting billet 14. Specifically, one end of the water receiving tray 11 is low and the other end is high, which is convenient for the discharge of the disordered water. In a specific embodiment, the low end of the water receiving tray 11 extends out of the inner side of the continuous casting billet 14, that is to say, the low end of the water receiving tray 11 is exposed from the side of the continuous casting billet 14, facilitating the discharge of the disordered water and preventing the disordered water from falling onto the continuous casting billet 14 and interfering with the uniform cooling of the continuous casting billet 14.
[0030] The water receiving tray 11 is made of a metal material. Preferably, the water receiving tray 11 is made of carbon structural steel. Specifically, the water receiving tray 11 is made of carbon structural steel of grades such as Q235. The wall thickness range of the water receiving tray 11 is 4 - 6mm, such as 4, 5, 6mm. Preferably, the wall thickness of the water receiving tray 11 is 5mm; too thick a wall thickness is not conducive to the replacement operation, and too thin a wall thickness is prone to deformation during high-temperature baking. In a specific embodiment, the water receiving tray 11 is made of Q235 steel with a thickness of 5mm and welded into a trough structure with a width of 300mm and a length of 1000mm.
[0031] The temperature of the continuous casting billet 14 gradually decreases along the arc extension direction from top to bottom of the segment. Therefore, the need for cooling water also gradually decreases. In another specific embodiment, the continuous casting billet 14 is led out along the segment, the segment extends along the arc direction from top to bottom (i.e., the leading direction of the segment), the nozzles 12 are arranged with decreasing density along the extension direction of the segment, that is to say, the tube springs 13 are arranged with decreasing density along the extension direction of the segment, and the water receiving trays 11 are arranged with decreasing density along the extension direction of the segment. The setting density of the water receiving trays 11 is consistent with the setting density of the nozzles 12, that is, the setting density of the tube springs 13. The setting density is the number per unit volume. This embodiment further uniformly cools the continuous casting billet 14. In a specific embodiment, the segment sequentially includes a first segment, a second segment, and a third segment from top to bottom along the arc direction, the setting density of the nozzles 12 along the first segment, the second segment, and the third segment decreases in sequence, and the setting density of the water receiving trays 11 along the first segment, the second segment, and the third segment also decreases in sequence.
[0032] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features of the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered that the scope recorded in this specification is covered.
[0033] For those skilled in the art, the present utility model can be implemented by other embodiments that do not deviate from its spiritual essence or essential features. Obviously, the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present utility model. Therefore, from any point of view, it is only an example and not the only one. The embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved. All changes within the scope of the present utility model or within the scope equivalent to the present utility model are included in the present utility model.
Claims
1. A device for secondary cooling of disordered water of a continuous casting machine, characterized in that: include: Water tray, nozzle, pipe spring; The water receiving tray is located inside the continuous casting billet and below the nozzle; the water receiving tray is mounted on the tube spring; The nozzle is installed on the tube spring, and the tube spring is connected to the nozzle to provide a water source for the nozzle; the tube spring is sleeved on the outside of the continuous casting billet, and a plurality of the tube springs are spaced apart along the extension direction of the fan-shaped segment of the continuous casting billet.
2. The device according to claim 1, characterized in that The water receiving tray is a trough structure with openings at both ends; the openings at both ends of the water receiving tray are arranged in the width direction of the continuous casting billet; The side plate of the trough structure is provided with a through hole, and the water receiving tray is fixedly mounted on the tube spring through the through hole.
3. The device according to claim 1, characterized in that A nozzle is arranged along the circumferential direction of the tube spring.
4. The device according to claim 1, characterized in that The plurality of tube springs are arranged at equal intervals.
5. The device according to claim 2, characterized in that An inclination angle ∠α is set between the tank structure and the horizontal plane, and the range of the inclination angle ∠α is 30-60°.
6. The device according to claim 1, characterized in that The fan-shaped segment extends along an arc direction from top to bottom, the nozzles are arranged with a density decreasing in sequence along the extending direction of the fan-shaped segment, and the water receiving trays are arranged with a density decreasing in sequence along the extending direction of the fan-shaped segment.
7. The device according to claim 5, characterized in that The lower end of the water receiving tray is exposed from the side of the continuous casting billet.