Continuous casting electromagnetic stirring device for low-alloy high-strength structural steel

Abstract

The utility model relates to the technical field of continuous casting machines, in particular to a continuous casting electromagnetic stirring device for low-alloy high-strength structural steel, which adopts the technical scheme that the continuous casting electromagnetic stirring device comprises an inner shell, an annular water tank and a heat dissipation box, a feeding hole is formed in the upper end of the inner shell, an outer shell is arranged on the outer side of the inner shell, and an equipment cavity is formed between the outer shell and the inner shell; the annular water tank is installed on the outer side of the outer shell, a temperature sensor is arranged on the inner wall of the bottom end of the annular water tank, a first heat exchange coil pipe is installed in the annular water tank, the tail end of the first heat exchange coil pipe communicates with the equipment cavity, and the heat dissipation box is installed at the side end of the annular water tank; driving equipment is installed in the heat dissipation box, fan blades are installed at the tail end of a main shaft of the driving equipment, and a second heat exchange coil pipe is installed in the heat dissipation box. The electromagnetic stirrer has the advantages that the electromagnetic inductor can be quickly and effectively cooled, and the stable operation of the electromagnetic stirrer is ensured.

Description

Technical Field

[0001] This utility model relates to the field of continuous casting machine technology, specifically to an electromagnetic stirring device for continuous casting of low-alloy high-strength structural steel. Background Technology

[0002] The working principle of a continuous casting machine is to continuously pour high-temperature molten steel into one or more water-cooled copper crystallizers. The molten steel gradually solidifies into a billet shell along the perimeter of the crystallizer. Once the molten steel level rises to a certain height and the billet shell solidifies to a certain thickness, a straightening machine pulls the billet out, and it is then cooled by water spray in a secondary cooling zone to ensure complete solidification. Finally, a cutting device cuts it to the required length according to the rolling requirements.

[0003] In the continuous casting production of low-alloy high-strength structural steel, electromagnetic stirring devices are required to stir molten steel and other liquid metals to improve the quality of the cast billet. Currently, in the use of continuous casting electromagnetic stirring devices, the electromagnetic inductor generates a lot of heat during operation, and the inability to dissipate heat quickly will affect the normal operation of the electromagnetic stirrer. Utility Model Content

[0004] The purpose of this invention is to provide a continuous casting electromagnetic stirring device for low-alloy high-strength structural steel, which has the advantages of being able to quickly and effectively dissipate heat from the electromagnetic inductor, ensuring the stable operation of the electromagnetic stirrer, and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a continuous casting electromagnetic stirring device for low-alloy high-strength structural steel, comprising an inner shell, an annular water tank, and a heat dissipation box. The upper end of the inner shell is provided with a feed inlet, and an outer shell is provided on the outer side of the inner shell. An equipment cavity is formed between the outer shell and the inner shell. Electromagnetic inductors are symmetrically distributed within the equipment cavity. The annular water tank is installed on the outer side of the outer shell, and a temperature sensor is provided on the inner wall of the bottom end of the annular water tank. A first heat exchange coil is installed inside the annular water tank, and its end communicates with the equipment cavity. The heat dissipation box is installed on the side of the annular water tank, and a driving device is installed inside the heat dissipation box. A fan blade is installed at the end of the main shaft of the driving device. A second heat exchange coil is installed inside the heat dissipation box, and the second heat exchange coil is located on one side of the fan blade.

[0006] When using the electromagnetic stirring device for continuous casting of low-alloy high-strength structural steel according to this invention, the electromagnetic induction device generates magnetic force, and the magnetic field moves from one pole to the other, simultaneously generating electromagnetic thrust, which pushes the molten steel in the direction of the magnetic field movement, thereby stirring the molten steel. During operation, cooling water is added to the annular water tank through the water inlet pipe. The silicone oil absorbs the heat generated by the operation of the electromagnetic induction device. The silicone oil is transported to the second heat exchange coil by the delivery pump. The drive device can make the fan blades rotate at high speed, and the fan blades can blow air. External air enters the heat dissipation box through the air inlet, and the air in the heat dissipation box is blown out through the air outlet. When blowing air, it can carry away the heat of the silicone oil in the second heat exchange coil. The silicone oil in the second heat exchange coil continues to circulate and can be input to the first heat exchange coil through the connecting pipe. The cooling water in the annular water tank can absorb the heat of the silicone oil in the first heat exchange coil. After two cooling cycles, the non-conductive silicone oil can re-enter the equipment cavity, which can ensure the cooling effect of the silicone oil on the electromagnetic induction device.

[0007] Preferably, the cavity of the device is filled with non-conductive silicone oil, and the electromagnetic sensor is immersed in the non-conductive silicone oil.

[0008] Preferably, the annular water tank has symmetrically distributed inlet and outlet pipes at its rear end, and both inlet and outlet pipes are equipped with valves. Cooling water can be added to the annular water tank through the inlet pipe, and when the temperature of the water in the annular water tank rises, the water in the annular water tank can be discharged through the outlet pipe.

[0009] Preferably, the heat sink has an air outlet at the front end and an array of air inlets at the side end.

[0010] Preferably, a connecting pipe is installed at the end of the second heat exchange coil, and the end of the connecting pipe is connected to the beginning of the first heat exchange coil.

[0011] Preferably, a delivery pump is installed at the lower end of the annular water tank. The delivery pump is equipped with a liquid extraction pipe and a delivery pipe. The liquid extraction pipe is connected to the equipment cavity, and the end of the delivery pipe is connected to the beginning of the second heat exchange coil.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the electromagnetic inductor absorbs the heat generated during operation through silicone oil, and then the silicone oil is cooled twice, which can ensure the temperature of the silicone oil in the equipment cavity, and can quickly and effectively dissipate heat from the electromagnetic inductor, thus ensuring the stable operation of the electromagnetic stirrer. Attached Figure Description

[0013] Figure 1 This is a bottom view of the structure of this utility model;

[0014] Figure 2 This is a front view structural diagram of the present utility model;

[0015] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 4 This is a first partial cross-sectional view of the present invention;

[0017] Figure 5 This is a schematic diagram of the second partial cross-sectional structure of the present invention.

[0018] The reference numerals and names in the figure are as follows:

[0019] 101. Inner shell; 102. Feed inlet; 103. Transfer pump; 104. Liquid extraction pipe; 105. Transfer pipe; 201. Outer shell; 202. Equipment cavity; 203. Electromagnetic sensor; 301. Annular water tank; 302. Water inlet pipe; 303. Water outlet pipe; 304. First heat exchange coil; 305. Temperature sensor; 401. Heat dissipation box; 402. Air inlet; 403. Air outlet; 404. Drive device; 405. Fan blade; 406. Second heat exchange coil; 407. Connecting pipe. Detailed Implementation

[0020] 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.

[0021] Example

[0022] Please see Figures 1 to 5 One embodiment of this utility model provides: a continuous casting electromagnetic stirring device for low-alloy high-strength structural steel, comprising:

[0023] The system comprises an inner shell 101, an annular water tank 301, and a heat dissipation box 401. The upper end of the inner shell 101 has a feed inlet 102. An outer shell 201 is located on the outer side of the inner shell 101, forming a device cavity 202 between the outer shell 201 and the inner shell 101. Symmetrically distributed electromagnetic sensors 203 are installed within the device cavity 202. The annular water tank 301 is mounted on the outer side of the outer shell 201. A temperature sensor 305 is installed on the inner wall of the bottom end of the annular water tank 301. The temperature sensor 305... The device is equipped to detect the temperature of the water in the annular water tank 301. A first heat exchange coil 304 is installed in the annular water tank 301, and the end of the first heat exchange coil 304 is connected to the equipment cavity 202. A heat dissipation box 401 is installed on the side of the annular water tank 301. A drive device 404 is installed in the heat dissipation box 401, and a fan blade 405 is installed at the end of the main shaft of the drive device 404. A second heat exchange coil 406 is installed in the heat dissipation box 401, and the second heat exchange coil 406 is located on one side of the fan blade 405.

[0024] In this embodiment, the electromagnetic induction sensor 203 generates a magnetic force, which moves from one pole to the other, simultaneously generating an electromagnetic thrust that pushes the molten steel in the direction of the magnetic field, thereby stirring the molten steel. During operation, cooling water is added to the annular water tank 301 through the water inlet pipe 302. The silicone oil absorbs the heat generated by the electromagnetic induction sensor 203, and the silicone oil is transported to the second heat exchange coil 406 by the delivery pump 103. The drive device 404 drives the fan blades 405 to rotate at high speed, which allows for the stirring of the molten steel. Air is blown in from outside into the heat exchanger 401 through the air inlet 402, and air is blown out from the air outlet 403. The blowing can remove the heat from the silicone oil in the second heat exchanger coil 406. The silicone oil in the second heat exchanger coil 406 continues to circulate and can be input to the first heat exchanger coil 304 through the connecting pipe 407. The cooling water in the annular water tank 301 can absorb the heat from the silicone oil in the first heat exchanger coil 304. After two cooling cycles, the non-conductive silicone oil can re-enter the equipment cavity 202, which can ensure the cooling effect of the silicone oil on the electromagnetic inductor 203.

[0025] Furthermore, the device cavity 202 is filled with non-conductive silicone oil, and the electromagnetic sensor 203 is immersed in the non-conductive silicone oil.

[0026] Furthermore, the rear end of the annular water tank 301 is provided with a symmetrically distributed inlet pipe 302 and outlet pipe 303, and valves are provided on both the inlet pipe 302 and the outlet pipe 303.

[0027] Furthermore, the heat dissipation box 401 has an air outlet 403 at its front end and an array of air inlets 402 at its side end.

[0028] Furthermore, a connecting pipe 407 is installed at the end of the second heat exchange coil 406, and the end of the connecting pipe 407 is connected to the beginning of the first heat exchange coil 304.

[0029] Furthermore, a delivery pump 103 is installed at the lower end of the annular water tank 301. The delivery pump 103 is equipped with a liquid extraction pipe 104 and a delivery pipe 105. The liquid extraction pipe 104 is connected to the equipment cavity 202, and the end of the delivery pipe 105 is connected to the beginning of the second heat exchange coil 406.

[0030] The delivery pump 103, electromagnetic sensor 203, temperature sensor 305 and drive device 404 in this utility model are known devices. Their working principles and circuit connections are well known to those skilled in the art and are all conventional methods or common knowledge. This utility model only utilizes their functions and does not improve their structure. Therefore, it will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A continuous casting electromagnetic stirring device for low-alloy high-strength structural steel, comprising an inner shell (101), a ring-shaped water tank (301) and a heat dissipation tank (401), characterized in that: The upper end of the inner shell (101) is provided with a feeding port (102), the outer side of the inner shell (101) is provided with an outer shell (201), a device cavity (202) is formed between the outer shell (201) and the inner shell (101), the device cavity (202) is provided with symmetrically distributed electromagnetic inductors (203), the annular water tank (301) is installed on the outer side of the outer shell (201), the bottom end inner wall of the annular water tank (301) is provided with a temperature sensor (305), the annular water tank (301) is provided with a first heat exchange coil (304), the end of the first heat exchange coil (304) is communicated with the device cavity (202), the heat dissipation box (401) is installed on the side end of the annular water tank (301), the heat dissipation box (401) is provided with a driving device (404), the main shaft end of the driving device (404) is provided with a fan blade (405), the heat dissipation box (401) is provided with a second heat exchange coil (406), and the second heat exchange coil (406) is located on one side of the fan blade (405).

2. A low alloy high strength structural steel continuous casting electromagnetic stirring device according to claim 1, characterized in that: The device cavity (202) is provided with non-conductive silicone oil, and the electromagnetic inductor (203) is soaked in the non-conductive silicone oil.

3. A low alloy high strength structural steel continuous casting electromagnetic stirring device according to claim 1, characterized in that: The rear end of the annular water tank (301) is provided with symmetrically distributed water inlet pipes (302) and water outlet pipes (303), and the water inlet pipes (302) and the water outlet pipes (303) are provided with valves.

4. A low alloy high strength structural steel continuous casting electromagnetic stirring device according to claim 1, characterized in that: The front end of the heat dissipation box (401) is provided with an air outlet (403), and the side end of the heat dissipation box (401) is provided with an array of air inlets (402).

5. A low alloy high strength structural steel continuous casting electromagnetic stirring device according to claim 1, characterized in that: The end of the second heat exchange coil (406) is provided with a connecting pipe (407), and the end of the connecting pipe (407) is connected with the beginning of the first heat exchange coil (304).

6. A low alloy high strength structural steel continuous casting electromagnetic stirring device according to claim 1, characterized in that: The lower end of the annular water tank (301) is provided with a conveying pump (103), the conveying pump (103) is provided with a liquid suction pipe (104) and a conveying pipe (105), the liquid suction pipe (104) is communicated with the device cavity (202), and the end of the conveying pipe (105) is connected with the beginning of the second heat exchange coil (406).

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