Billet continuous casting machine cutting front roller split type water-cooled guide frame

Abstract

The utility model discloses a bloom continuous casting machine cuts front roller split type water -cooling guide frame, including guide frame main part and base plate, guide frame main part and base plate are split type structure, and guide frame main part is fixedly installed on base plate through bolt, the guide frame main part includes two parallel opposite setting guide plate, and fixedly connected with the vertical board between the guide plate, the back of each guide plate all is welded with the guide plate water tank that is composed of channel section, and the both ends of guide plate water tank are connected with water inlet pipeline and water outlet pipeline respectively, the utility model discloses a guide frame is changed into water -cooling guide frame, and the temperature of guide plate is effectively reduced, and the surface oxidation rate is slowed down. The split type structure of guide frame main part and base plate makes when replacing only need to open the heat preservation cover plate driven by hydraulic cylinder, saves a large amount of human resources. Prevents the red blank top dead phenomenon caused by the oxidation of guide plate and falls off, ensures the stable operation of bloom continuous casting machine.

Description

Technical Field

[0001] This utility model relates to the technical field of billet continuous casting machine devices, specifically to a split-type water-cooled guide frame for the cutting roll of a billet continuous casting machine. Background Technology

[0002] The billet continuous casting machine in a steel mill requires the installation of an insulation cover on the pre-cutting roller conveyor. However, after the insulation cover is installed, the guide frame is in a three-sided enclosed state, which cannot effectively dissipate heat, causing the guide frame temperature to rise sharply. Traditional guide plates turn red, oxidize, and peel off under such high-temperature conditions, greatly reducing their service life and seriously affecting the normal operation of the billet continuous casting machine. Moreover, traditional guide frames are mostly integral structures, and replacing the original integral guide frames requires removing the insulation cover plate and side plates, which is troublesome and labor-intensive. Utility Model Content

[0003] (I) Technical Issues

[0004] This utility model provides a split water-cooled guide frame for the cutting roll of a billet continuous casting machine, which aims to solve the problems of traditional guide frames being unable to dissipate heat and thus causing damage, as well as the inconvenience of replacing integral structures.

[0005] (II) Technical Content

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a split water-cooled guide frame for the pre-cutting roll of a billet continuous casting machine, comprising a guide frame body and a base plate. The guide frame body and the base plate are a split structure, and the guide frame body is fixedly installed on the base plate by bolts. The guide frame body includes two parallel and opposite guide plates, with a vertical plate fixedly connected between the guide plates. A guide plate water tank made of channel steel is welded to the back of each guide plate, and an inlet pipe and an outlet pipe are respectively connected to both ends of the guide plate water tank.

[0007] Furthermore, the distance between the two guide plates is 280mm, and the material of the guide plates is Q355-A.

[0008] Furthermore, both the inlet and outlet water pipes are seamless steel pipes, and their arrangement conforms to the principle of low inlet and high outlet.

[0009] Furthermore, the base plate is provided with several mounting holes.

[0010] Furthermore, the lower end of the water inlet pipe is provided with a pipe joint, which is connected to an external water supply device.

[0011] (III) Technical Effects

[0012] Compared with existing technologies, the advantages of this invention are as follows: By modifying the guide frame to a water-cooled guide frame, the temperature of the guide plate is effectively reduced, slowing down its surface oxidation rate. After the guide frame of the billet continuous casting machine is replaced with this water-cooled guide frame, its service life is increased from the original 3 months to more than 15 months. The split structure of the guide frame body and the base plate allows for replacement by simply opening the insulation cover plate driven by the hydraulic cylinder, reducing the labor time for replacing one guide frame from 15 man-hours to 3 man-hours, saving a significant amount of manpower. It also eliminates the phenomenon of red billet jamming caused by oxidation and detachment of the guide plate, ensuring the stable operation of the billet continuous casting machine and reducing the occurrence of production interruptions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the split water-cooled guide frame for the front roll of the billet continuous casting machine.

[0014] Figure 2 This is a schematic diagram of the left side of the split-type water-cooled guide frame for the front roll of the billet continuous casting machine.

[0015] Figure 3 This is a top view of the split-type water-cooled guide frame for the front roll of the billet continuous casting machine according to this utility model.

[0016] Figure 4 This is a schematic diagram of the base plate of the split water-cooled guide frame for the pre-cutting roller of the billet continuous casting machine.

[0017] As shown in the figure: 1. Guide frame body; 2. Base plate; 3. Guide plate water tank; 4. Inlet pipe; 5. Outlet pipe; 6. Pipe joint; 11. Guide plate; 12. Vertical plate; 21. Mounting hole. Detailed Implementation

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Combined with appendix Figure 1 To be continued Figure 4 A split-type water-cooled guide frame for the pre-cutting roll of a billet continuous casting machine includes a guide frame body 1 and a base plate 2. The guide frame body 1 and the base plate 2 are split structures. The guide frame body 1 is fixedly installed on the base plate 2 by bolts. The guide frame body 1 includes two parallel and opposite guide plates 11. A vertical plate 12 is fixedly connected between the guide plates 11. A guide plate water tank 3 made of channel steel is welded to the back of each guide plate 11. The two ends of the guide plate water tank 3 are respectively connected to an inlet pipe 4 and an outlet pipe 5.

[0022] The two guide plates 11 are spaced 280mm apart. The guide plates 11 are made of Q355-A material. The base plate 2 has several mounting holes 21.

[0023] Both the inlet pipe 4 and the outlet pipe 5 are seamless steel pipes, and the inlet pipe 4 and the outlet pipe 5 are set in accordance with the principle of low inlet and high outlet. The lower end of the inlet pipe 4 is provided with a pipe joint 6, which is connected to the external water supply equipment.

[0024] The working principle of this utility model is as follows: During the operation of the billet continuous casting machine, the external water supply equipment is connected to the inlet pipe 4 through the pipe joint 6, following the principle of low inlet and high outlet. Cooling water enters the guide plate water tank 3 (which is welded to the back of the guide plate 11) made of channel steel through the inlet pipe 4. The cooling water flows fully in the guide plate water tank 3, exchanging heat with the guide plate 11 made of Q355-A material, absorbing the heat generated by the guide plate 11 in the high-temperature environment. Then, the cooling water carrying heat is discharged through the outlet pipe 5, forming a continuous water cooling cycle, thereby effectively reducing the temperature of the guide plate 11 and preventing it from turning red, oxidizing, or peeling off due to high temperature in the three-sided enclosed heat insulation cover environment. At the same time, the guide frame body 1 and the base plate 2 adopt a split structure. The guide frame body 1 is fixedly installed on the base plate 2 by bolts (the base plate 2 is fixed as a whole through the mounting holes 21). When the guide frame needs to be replaced, there is no need to remove the side plates of the insulation cover. Simply open the insulation cover plate driven by the hydraulic cylinder, loosen the bolts fixing the guide frame body 1 to the base plate 2, and the guide frame body 1 can be replaced separately, greatly simplifying the replacement process. In addition, the two guide plates 11 maintain a 280mm gap to ensure stable guidance of the billet during transportation. The inlet pipe 4 and outlet pipe 5, made of seamless steel pipes, ensure the sealing and durability of the cooling water circulation system, further guaranteeing the stable operation of the equipment in high-temperature environments.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A split-type water-cooled guide frame for the pre-cutting roll of a billet continuous casting machine, comprising a guide frame body (1) and a base plate (2), characterized in that: The guide frame body (1) and the base plate (2) are separate structures. The guide frame body (1) is fixedly installed on the base plate (2) by bolts. The guide frame body (1) includes two parallel and opposite guide plates (11). A vertical plate (12) is fixedly connected between the guide plates (11). A guide plate water tank (3) made of channel steel is welded to the back of each guide plate (11). The two ends of the guide plate water tank (3) are respectively connected to an inlet pipe (4) and an outlet pipe (5).

2. The split-type water-cooled guide frame for the pre-cutting roll of a billet continuous casting machine according to claim 1, characterized in that: The distance between the two guide plates (11) is 280mm, and the material of the guide plates (11) is Q355-A.

3. The split-type water-cooled guide frame for the pre-cutting roll of a billet continuous casting machine according to claim 1, characterized in that: The inlet pipe (4) and outlet pipe (5) are both seamless steel pipes, and the inlet pipe (4) and outlet pipe (5) are set in accordance with the principle of low inlet and high outlet.

4. The split-type water-cooled guide frame for the pre-cutting roll of a billet continuous casting machine according to claim 1, characterized in that: The base plate (2) is provided with several mounting holes (21).

5. The split-type water-cooled guide frame for the pre-cutting roll of a billet continuous casting machine according to claim 1, characterized in that: The lower end of the water inlet pipe (4) is provided with a pipe joint (6), which is connected to the external water supply equipment.

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