Three-strand continuous casting machine tundish and three-strand continuous casting machine

Abstract

The invention discloses a three-stream continuous casting machine tundish and a three-stream continuous casting machine. The three-stream continuous casting machine tundish comprises a support frame (1) and a lifting frame (2). The lifting frame (2) is connected to the support frame (1) through a lifting hydraulic cylinder (4). The lifting frame (2) can support the tundish (3). The lifting hydraulic cylinder (4) can drive the tundish (3) and the lifting frame (2) to move up and down, and the support frame (1) can move left and right. The support frame (1) comprises an outer arc side support beam (101) and an inner arc side support beam (102) arranged at intervals in front and back. The outer arc side support beam (101) and the inner arc side support beam (102) are connected and fixed by four intermediate support beams arranged at intervals. The three-stream continuous casting machine tundish can well support the extra-long tundish of a three-stream slab continuous casting machine or a three-stream profiled blank continuous casting machine, and realize the lifting, lateral fine adjustment, transportation and weighing of the tundish.

Description

Technical Field

[0001] The invention relates to the field of continuous casting equipment, in particular to a tundish car for a three-strand continuous casting machine, and also to a three-strand continuous casting machine. Background Art

[0002] In recent years, as the converter equipment in my country's steel industry has gradually developed towards large-scale, the existing conventional two-strand slab continuous casting machine, which casts at the highest drawing speed, cannot match the fast smelting cycle of large converters. On the other hand, if the drawing speed of the continuous casting machine is too high, it will lead to unfavorable factors such as increased equipment wear, deterioration of the internal and external quality of the casting, and increased risk of steel leakage. Therefore, three-strand slab continuous casting machine or three-strand special-shaped billet continuous casting machine appeared. The intermediate tank of the three-strand slab continuous casting machine is relatively longer and carries more molten steel. Summary of the invention

[0003] In order to adapt to a three-stream slab continuous casting machine or a three-stream special-shaped billet continuous casting machine, the present invention provides a three-stream continuous casting machine tundish truck and a three-stream continuous casting machine. The three-stream continuous casting machine tundish truck and the three-stream continuous casting machine can well support the extra-long tundish of the three-stream slab continuous casting machine or the three-stream special-shaped billet continuous casting machine, and realize the lifting, lateral fine-tuning, transportation and weighing of the tundish.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a three-strand continuous casting machine intermediate tank car, including a support frame and a lifting frame, the lifting frame is connected to the support frame through a lifting hydraulic cylinder, the lifting frame can support the intermediate tank, the lifting hydraulic cylinder can drive the intermediate tank and the lifting frame to move up and down, and the support frame can move left and right; the support frame contains outer arc side support beams and inner arc side support beams arranged at intervals in front and back, the outer arc side support beams and the inner arc side support beams are connected and fixed by four intermediate support beams arranged at intervals, and along the direction from right to left, the four intermediate support beams are respectively the first intermediate support beam, the second intermediate support beam, the third intermediate support beam and the fourth intermediate support beam.

[0005] There are three water outlets at the bottom of the middle tank. From right to left, the three water outlets are the first water outlet, the second water outlet and the third water outlet respectively. The first water outlet is located outside the right side of the first middle supporting beam, the second water outlet is located between the second middle supporting beam and the third middle supporting beam, and the third water outlet is located outside the left side of the fourth middle supporting beam.

[0006] The lifting frame comprises an outer arc side lifting beam and an inner arc side lifting beam which are spaced apart in front and back. The outer arc side lifting beam and the inner arc side lifting beam are connected and fixed by a first middle lifting beam and a second middle lifting beam. The first middle lifting beam and the second middle lifting beam are spaced apart in the right and left directions.

[0007] In the direction from right to left, the first intermediate lifting beam is located between the first intermediate supporting beam and the second intermediate supporting beam, and the second intermediate lifting beam is located between the third intermediate supporting beam and the fourth intermediate supporting beam.

[0008] The lifting frame is connected to the supporting frame through four lifting hydraulic cylinders. The four lifting hydraulic cylinders are symmetrically arranged in pairs front and back. The upper ends of the two front lifting hydraulic cylinders are connected to the lifting frame through sliding supports, and the upper ends of the two rear lifting hydraulic cylinders are connected to the lifting frame through fixed supports.

[0009] The three-strand continuous casting machine intermediate tank car also includes a transverse fine-tuning mechanism, which can move the intermediate tank on the lifting frame forward and backward. The transverse fine-tuning mechanism contains a transverse fine-tuning hydraulic cylinder and a transverse fine-tuning bracket connected in sequence. A rib plate is fixedly connected to the outside of the intermediate tank. One end of the transverse fine-tuning hydraulic cylinder is fixedly connected to the lifting frame, and the other end of the transverse fine-tuning hydraulic cylinder is connected to the transverse fine-tuning bracket. The lower end of the transverse fine-tuning bracket is hinged to the lifting frame, and the upper end of the transverse fine-tuning bracket is connected to a guide wheel, and the guide wheel is located in the card slot of the rib plate.

[0010] The lifting frame is provided with a plurality of supporting rollers for supporting the intermediate tank. The supporting rollers include a rotating wheel, an axle and a wheel seat which are connected in sequence. The wheel seat is fixedly connected to the lifting frame, the axle is fixedly connected to the wheel seat, the axis of the axle is arranged in the left and right direction, and the axle is a weighing sensor.

[0011] The three-strand continuous casting machine tundish car also includes a low-rail traveling mechanism and a high-rail traveling mechanism arranged at intervals in front and behind. The low-rail traveling mechanism includes low-rail wheels and low rails arranged up and down, and the high-rail traveling mechanism includes high-rail wheels and high rails arranged up and down. Both the low-rail wheels and the high-rail wheels are connected to the supporting frame. There are four low-rail wheels, which are arranged in sequence from right to left, and the two low-rail wheels on the left and right sides are connected to the wheel driving mechanism.

[0012] The three-strand continuous casting machine intermediate tank car also includes three crystallizer smoke exhaust devices, which are all connected to the support frame. The three crystallizer smoke exhaust devices are arranged one by one in front and behind the three water outlets, and the three crystallizer smoke exhaust devices contain smoke collection hoods and exhaust pipes connected in sequence.

[0013] A three-strand continuous casting machine, comprising a ladle, a tundish, a tundish car and three crystallizers arranged in sequence, the tundish car being the above-mentioned three-strand continuous casting machine tundish car, a lifting frame supporting the tundish, three water outlets being arranged at the bottom of the tundish, the three water outlets corresponding one by one to the three crystallizers.

[0014] The beneficial effects of the present invention are as follows: the three-stream continuous casting machine tundish car and the three-stream continuous casting machine can well support the extra-long tundish of the three-stream slab continuous casting machine or the three-stream profiled billet continuous casting machine, and realize the lifting, lateral fine adjustment, transportation and weighing of the tundish. At the same time, each stream has sufficient outer arc side production operation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0016] Figure 1 It is a front view of the tundish car of the three-strand continuous casting machine described in the present invention.

[0017] Figure 2 It is a top view of the tundish car of the three-strand continuous casting machine described in the present invention.

[0018] Figure 3 It is a left view of the tundish car of the three-strand continuous casting machine described in the present invention.

[0019] Figure 4 It is the main view of the supporting frame.

[0020] Figure 5 is a top view of the support frame.

[0021] Figure 6 It is the left side view of the supporting frame.

[0022] Figure 7 It is the front view of the lifting frame and the intermediate tank.

[0023] Figure 8 It is a top view of the lifting frame and the intermediate tank.

[0024] Fig. 9 It is the left view of the lifting frame and the intermediate tank.

[0025] Fig.10 It is a schematic diagram of the lateral fine-tuning mechanism.

[0026] Fig.11 It is a schematic diagram of the lateral fine-tuning hydraulic cylinder and the lateral fine-tuning bracket.

[0027] Fig.12 This is a schematic diagram of the rib plate area.

[0028] Fig.13 is a schematic diagram of the support roller.

[0029] 1. Support frame; 2. Lifting frame; 3. Tundish; 4. Lifting hydraulic cylinder; 5. Horizontal fine-tuning mechanism; 6. Support roller; 7. Low-rail travel mechanism; 8. High-rail travel mechanism; 9. Crystallizer smoke exhaust device;

[0030] 101, outer arc side supporting beam; 102, inner arc side supporting beam; 103, first intermediate supporting beam; 104, second intermediate supporting beam; 105, third intermediate supporting beam; 106, fourth intermediate supporting beam;

[0031] 201, outer arc side lifting beam; 202, inner arc side lifting beam; 203, first middle lifting beam; 204, second middle lifting beam;

[0032] 301, first water outlet; 302, second water outlet; 303, third water outlet; 304, rib plate; 305, slot;

[0033] 501, lateral fine-tuning hydraulic cylinder; 502, lateral fine-tuning bracket; 503, guide wheel; 504, rotating shaft;

[0034] 601, rotating wheel; 602, axle; 603, wheel seat;

[0035] 701, low rail wheel; 702, low rail;

[0036] 801, high rail wheel; 802, high rail;

[0037] 901. Smoke collection hood; 902. Smoke exhaust pipe. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] A three-strand continuous casting machine tundish car comprises a supporting frame 1 and a lifting frame 2, wherein the lifting frame 2 can support a tundish 3, the tundish 3 can be seated on the lifting frame 2, three water outlets are arranged at intervals from left to right at the bottom of the tundish 3, the lifting frame 2 is connected to the supporting frame 1 through a lifting hydraulic cylinder 4, the lifting hydraulic cylinder 4 can drive the tundish 3 and the lifting frame 2 to move up and down synchronously, and the supporting frame 1 can move left and right, such as Figures 1 to 9 shown.

[0040] In the present invention, the left and right movement of the support frame 1 can drive the intermediate tank 3 and the lifting frame 2 to move left and right synchronously, and the lifting hydraulic cylinder 4 can drive the intermediate tank 3 and the lifting frame 2 to move up and down synchronously. The distance between two adjacent water outlets of the three water outlets is the same, and the three water outlets correspond one by one to the three crystallizers of the three-strand continuous casting machine. The molten steel in the intermediate tank 3 can be discharged from the three water outlets. The three-strand continuous casting machine intermediate tank car can be well adapted to a three-strand slab continuous casting machine or a three-strand special-shaped billet continuous casting machine.

[0041] In this embodiment, the support frame 1 comprises an outer arc side support beam 101 and an inner arc side support beam 102 which are arranged in parallel and spaced apart from each other. The outer arc side support beam 101 and the inner arc side support beam 102 are connected and fixed by four spaced apart middle support beams. From right to left, the four middle support beams are the first middle support beam 103, the second middle support beam 104, the third middle support beam 105 and the fourth middle support beam 106. Figures 4 to 6 shown.

[0042] The outer arc side support beam 101, the inner arc side support beam 102, the first middle support beam 103, the second middle support beam 104, the third middle support beam 105 and the fourth middle support beam 106 are all long strip structures. The length directions of the outer arc side support beam 101 and the inner arc side support beam 102 are both left-right directions, and the length directions of the first middle support beam 103, the second middle support beam 104, the third middle support beam 105 and the fourth middle support beam 106 are all front-back directions.

[0043] The first intermediate support beam 103, the second intermediate support beam 104, the third intermediate support beam 105 and the fourth intermediate support beam 106 are located in the same horizontal plane. The distance between the first intermediate support beam 103 and the second intermediate support beam 104 is equal to the distance between the third intermediate support beam 105 and the fourth intermediate support beam 106, and the distance between the first intermediate support beam 103 and the second intermediate support beam 104 is smaller than the distance between the second intermediate support beam 104 and the third intermediate support beam 105.

[0044] In this embodiment, along the direction from right to left, the three water outlets are the first water outlet 301, the second water outlet 302 and the third water outlet 303, the first water outlet 301 is located outside the right side of the first middle supporting beam 103, the second water outlet 302 is located between the second middle supporting beam 104 and the third middle supporting beam 105, and the third water outlet 303 is located outside the left side of the fourth middle supporting beam 106. Figure 2 In this way, the three water outlets will not interfere with the lifting frame 2.

[0045] In this embodiment, the lifting frame 2 includes an outer arc side lifting beam 201 and an inner arc side lifting beam 202 arranged in parallel and spaced apart from each other. The outer arc side lifting beam 201 and the inner arc side lifting beam 202 are connected and fixed by a first middle lifting beam 203 and a second middle lifting beam 204. The first middle lifting beam 203 and the second middle lifting beam 204 are arranged spaced apart from each other from right to left. Figures 7 to 9 shown.

[0046] The lifting frame 2 is roughly rectangular, and the outer arc side lifting beam 201, the inner arc side lifting beam 202, the first middle lifting beam 203 and the second middle lifting beam 204 are all long strip structures. The length directions of the outer arc side lifting beam 201 and the inner arc side lifting beam 202 are both left and right, and the length directions of the first middle lifting beam 203 and the second middle lifting beam 204 are both front and back.

[0047] In this embodiment, along the direction from right to left, the first intermediate lifting beam 203 is located between the first intermediate supporting beam 103 and the second intermediate supporting beam 104, and the second intermediate lifting beam 204 is located between the third intermediate supporting beam 105 and the fourth intermediate supporting beam 106. Figure 2 In this way, during the lifting process of the lifting frame 2, the supporting frame 1 and the lifting frame 2 will not interfere with each other.

[0048] In this embodiment, the lifting frame 2 is connected to the support frame 1 through four lifting hydraulic cylinders 4. The four lifting hydraulic cylinders 4 are symmetrically arranged in pairs in front and back. The four lifting hydraulic cylinders 4 are respectively located at the four corners of a rectangle. The upper ends of the two lifting hydraulic cylinders 4 in the front are connected to the lifting frame 2 through sliding supports, and the upper ends of the two lifting hydraulic cylinders 4 in the rear are connected to the lifting frame 2 through fixed supports. Figure 2 shown.

[0049] The four lifting hydraulic cylinders 4 are all in an upright state. The lower ends of the piston rods of the four lifting hydraulic cylinders 4 are all connected and fixed to the support frame 1. The upper ends of the cylinder barrels of the two rear lifting hydraulic cylinders 4 are connected to the lifting frame 2 through fixed supports (hydraulic cylinder fixed supports), and the upper ends of the cylinder barrels of the two front lifting hydraulic cylinders 4 are connected to the lifting frame 2 through sliding supports (hydraulic cylinder sliding supports). The ear shaft blocks of the lifting hydraulic cylinders can slide in the sliding supports to prevent the lifting frame from being statically unstable and causing large internal forces. There should be sufficient contact length between the piston rod and the cylinder barrel of the lifting hydraulic cylinder 4 to serve as a guide limit for the lifting frame and the intermediate tank during the lifting process.

[0050] In this embodiment, the three-strand continuous casting machine intermediate tank car also includes a transverse fine-tuning mechanism 5, which can move the intermediate tank 3 on the lifting frame 2 forward and backward. The transverse fine-tuning mechanism 5 contains a transverse fine-tuning hydraulic cylinder 501 and a transverse fine-tuning bracket 502 connected in sequence. The intermediate tank 3 is fixedly connected to the outside with a rib plate 304. One end of the transverse fine-tuning hydraulic cylinder 501 is connected and fixed to the lifting frame 2, and the other end of the transverse fine-tuning hydraulic cylinder 501 is connected to the transverse fine-tuning bracket 502. The lower end of the transverse fine-tuning bracket 502 is hinged to the lifting frame 2 through a rotating shaft 504. The upper end of the transverse fine-tuning bracket 502 is connected to a guide wheel 503, and the guide wheel 503 is located in the card slot 305 of the rib plate 304. Figures 10 to 12 shown.

[0051] The two transverse fine-tuning mechanisms 5 are symmetrically arranged on the left and right. The cylinder barrel of the transverse fine-tuning hydraulic cylinder 501 is connected and fixed to the lifting frame 2. The transverse fine-tuning bracket 502 is an upright rod-shaped structure. The extension and retraction of the piston rod of the transverse fine-tuning hydraulic cylinder 501 will cause the transverse fine-tuning bracket 502 to rotate a certain angle around the rotating shaft 504, and the upper end of the transverse fine-tuning bracket 502 will move forward and backward. The outer diameter of the guide wheel 503 is roughly the same as the width of the slot 305, thereby driving the rib plate 304 and the intermediate tank 3 to move forward and backward synchronously.

[0052] In this embodiment, the lifting frame 2 is provided with a plurality of supporting rollers 6 for supporting the intermediate tank 3, that is, the intermediate tank 3 is seated on the lifting frame 2 through the plurality of supporting rollers 6, and the supporting rollers 6 include a rotating wheel 601, a wheel axle 602 and a wheel seat 603 connected in sequence, as shown in FIG. Fig.13 As shown, the intermediate tank 3 is in contact with the rotating wheel 601, the wheel seat 603 is connected and fixed to the lifting frame 2, the wheel axle 602 is connected and fixed to the wheel seat 603, the rotating wheel 601 can rotate around the wheel axle 602, the wheel axle 602 does not rotate relative to the wheel seat 603, the axis of the wheel axle 602 is arranged along the left and right direction, the wheel axle 602 is a weighing sensor, and the real-time weighing of the intermediate tank can be achieved through the wheel axle 602.

[0053] The intermediate tank 3 is located on the lifting frame 2 through eight supporting rollers 6. The eight supporting rollers 6 are symmetrically arranged on the lifting frame 2 in a front-to-back manner. The intermediate tank 3 and the supporting rollers 6 are connected by rolling friction, that is, the friction force that needs to be overcome by the lateral fine-tuning mechanism 5 to drive the intermediate tank 3 to move forward and backward is rolling friction. The friction force that needs to be overcome by the lateral fine-tuning mechanism 5 to drive the intermediate tank 3 to move forward and backward is small, so the lateral fine-tuning mechanism 5 can easily drive the intermediate tank 3 to move forward and backward. A strain gauge is provided on the wheel axle 602, which can sense the bending deformation of the wheel axle 602. The bending deformation is proportional to the weight of the intermediate tank 3, so the weight of the intermediate tank 3 can be calculated.

[0054] In this embodiment, the three-strand continuous casting machine tundish car further includes a low-rail travel mechanism 7 and a high-rail travel mechanism 8 arranged at intervals in front and back, the low-rail travel mechanism 7 includes low-rail wheels 701 and low rails 702 arranged up and down, the high-rail travel mechanism 8 includes high-rail wheels 801 and high rails 802 arranged up and down, the low-rail wheels 701 and the high-rail wheels 801 are both connected to the support frame 1, the number of low-rail wheels 701 is four, the four low-rail wheels 701 are arranged in sequence from right to left, and the two low-rail wheels 701 on the left and right sides are both connected to a wheel driving mechanism. The low rail 702 and the high rail 802 both extend in the left-right direction.

[0055] The support frame 1, the lifting frame 2 and the tundish 3 move left and right by means of the low-rail travel mechanism 7 and the high-rail travel mechanism 8, that is, the tundish car of the three-strand continuous casting machine moves left and right by means of the low-rail travel mechanism 7 and the high-rail travel mechanism 8. The four high-rail wheels 801 are all driven wheels, that is, the four high-rail wheels 801 are not connected to the wheel drive mechanism, and the middle two wheels of the four low-rail wheels 701 are driven wheels, that is, the middle two wheels of the four low-rail wheels 701 are not connected to the wheel drive mechanism.

[0056] In this embodiment, the three-strand continuous casting machine intermediate tank car also includes three crystallizer smoke exhaust devices 9, and the three crystallizer smoke exhaust devices 9 are all connected and fixed to the support frame 1. The three crystallizer smoke exhaust devices 9 are arranged one by one in front and behind the three water outlets. The three crystallizer smoke exhaust devices 9 contain a smoke collection hood 901 and a smoke exhaust pipe 902 connected in sequence. The crystallizer smoke exhaust device 9 can be used to discharge the smoke at the upper mouth of the crystallizer to the smoke exhaust pipe.

[0057] A three-strand continuous casting machine is introduced below, which includes a ladle, a tundish 3, a tundish car and three crystallizers arranged in sequence. The three crystallizers are arranged side by side in the horizontal direction. The tundish car is the tundish car of the three-strand continuous casting machine mentioned above. The tundish 3 is provided on the lifting frame 2, and the lifting frame 2 supports the tundish 3. Three water outlets are provided at the bottom of the tundish 3, and the three water outlets correspond one by one to the three crystallizers.

[0058] The working process of the three-strand continuous casting machine intermediate tank car and the three-strand continuous casting machine is introduced below.

[0059] The molten steel in the ladle is discharged into the intermediate tank 3, and the low-track travel mechanism 7 and the high-track travel mechanism 8 drive the support frame 1, the lifting frame 2 and the intermediate tank 3 to move to the desired position in the left and right directions to realize the transportation of molten steel. The lifting hydraulic cylinder 4 is telescopic to realize the synchronous lifting of the lifting frame 2 and the intermediate tank 3. The transverse fine-tuning hydraulic cylinder 501 is telescopic to realize the fine-tuning movement of the intermediate tank 3 on the support roller 6, and the support roller 6 can weigh the weight of the intermediate tank 3 in real time. The crystallizer smoke exhaust device 9 can be used to exhaust the smoke at the upper mouth of the crystallizer to the smoke exhaust pipe.

[0060] In order to facilitate understanding and description, the present invention adopts absolute position relationship for expression, wherein the directional word "up" means Figure 1 The upward direction in the Figure 1 The lower direction in the “left” indicates Figure 1 The left direction in the Figure 1 The right direction in the figure is "front" which means perpendicular to Figure 1 The back refers to the direction perpendicular to the paper surface and points to the inside of the paper surface. Figure 1The present invention is described using the observation perspective of a user or reader, but the above directional words cannot be understood or interpreted as limiting the protection scope of the present invention.

[0061] The above is only a specific embodiment of the present invention, and cannot be used to limit the scope of the invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the protection scope of the present invention, should still fall within the scope of this patent. In addition, the technical features of the present invention can be freely combined with each other, with technical features and technical solutions, and with technical solutions.

Claims

1. A tundish car for a three-strand continuous casting machine, characterized in that: The three-strand continuous casting machine intermediate tank car comprises a support frame (1) and a lifting frame (2), the lifting frame (2) is connected to the support frame (1) via a lifting hydraulic cylinder (4), the lifting frame (2) can support the intermediate tank (3), the lifting hydraulic cylinder (4) can drive the intermediate tank (3) and the lifting frame (2) to move up and down, and the support frame (1) can move left and right; the support frame (1) comprises an outer arc side support beam (101) and an inner arc side support beam (102) arranged at intervals in front and back, the outer arc side support beam (101) and the inner arc side support beam (102) are connected and fixed by four intermediate support beams arranged at intervals, and along the direction from right to left, the four intermediate support beams are sequentially a first intermediate support beam (103), a second intermediate support beam (104), a third intermediate support beam (105) and a fourth intermediate support beam (106); The bottom of the intermediate tank (3) is provided with three water flow ports, which are, from right to left, the first water flow port (301), the second water flow port (302) and the third water flow port (303) in sequence; the first water flow port (301) is located outside the right side of the first intermediate support beam (103); the second water flow port (302) is located between the second intermediate support beam (104) and the third intermediate support beam (105); and the third water flow port (303) is located outside the left side of the fourth intermediate support beam (106); The lifting frame (2) comprises an outer arc lifting beam (201) and an inner arc lifting beam (202) which are arranged at intervals in front and back, the outer arc lifting beam (201) and the inner arc lifting beam (202) are connected and fixed by a first middle lifting beam (203) and a second middle lifting beam (204), and the first middle lifting beam (203) and the second middle lifting beam (204) are arranged at intervals in the right and left directions; In the direction from right to left, the first intermediate lifting beam (203) is located between the first intermediate supporting beam (103) and the second intermediate supporting beam (104), and the second intermediate lifting beam (204) is located between the third intermediate supporting beam (105) and the fourth intermediate supporting beam (106); The lifting frame (2) is connected to the support frame (1) via four lifting hydraulic cylinders (4); the four lifting hydraulic cylinders (4) are symmetrically arranged in pairs at the front and rear; the upper ends of the two lifting hydraulic cylinders (4) at the front are connected to the lifting frame (2) via sliding supports, and the upper ends of the two lifting hydraulic cylinders (4) at the rear are connected to the lifting frame (2) via fixed supports; The three-strand continuous casting machine tundish car further comprises a transverse fine-tuning mechanism (5), the transverse fine-tuning mechanism (5) being capable of moving the tundish (3) on the lifting frame (2) forward and backward, the transverse fine-tuning mechanism (5) comprising a transverse fine-tuning hydraulic cylinder (501) and a transverse fine-tuning bracket (502) connected in sequence, the tundish (3) being fixedly connected to a rib plate (304) outside, one end of the transverse fine-tuning hydraulic cylinder (501) being fixedly connected to the lifting frame (2), the other end of the transverse fine-tuning hydraulic cylinder (501) being connected to the transverse fine-tuning bracket (502), the lower end of the transverse fine-tuning bracket (502) being hinged to the lifting frame (2), the upper end of the transverse fine-tuning bracket (502) being connected to a guide wheel (503), the guide wheel (503) being located in a slot (305) of the rib plate (304).

2. The three-strand continuous casting machine tundish car according to claim 1, characterized in that: A plurality of supporting rollers (6) for supporting the intermediate tank (3) are provided on the lifting frame (2). The supporting rollers (6) include a rotating wheel (601), a wheel axle (602) and a wheel seat (603) which are connected in sequence. The wheel seat (603) is connected and fixed to the lifting frame (2). The wheel axle (602) is connected and fixed to the wheel seat (603). The axis of the wheel axle (602) is arranged in the left-right direction. The wheel axle (602) is a weighing sensor.

3. The tundish car for a three-strand continuous casting machine according to claim 1, characterized in that: The three-strand continuous casting machine tundish car further comprises a low-rail travel mechanism (7) and a high-rail travel mechanism (8) arranged at intervals in front and rear, the low-rail travel mechanism (7) comprising low-rail wheels (701) and low rails (702) arranged in a vertical arrangement, the high-rail travel mechanism (8) comprising high-rail wheels (801) and high rails (802) arranged in a vertical arrangement, both the low-rail wheels (701) and the high-rail wheels (801) being connected to the support frame (1), the number of the low-rail wheels (701) being four, the four low-rail wheels (701) being arranged in sequence from right to left, and the two low-rail wheels (701) on the left and right sides being connected to the wheel drive mechanism.

4. The tundish car for a three-strand continuous casting machine according to claim 1, characterized in that: The three-strand continuous casting machine intermediate tank car also includes three crystallizer smoke exhaust devices (9), the three crystallizer smoke exhaust devices (9) are all connected to the support frame (1), the three crystallizer smoke exhaust devices (9) are arranged in a one-to-one correspondence with the three water outlets, and the three crystallizer smoke exhaust devices (9) include a smoke collection hood (901) and a smoke exhaust pipe (902) connected in sequence.

5. A three-strand continuous casting machine, characterized in that: The three-strand continuous casting machine comprises a ladle, a tundish (3), a tundish car and three crystallizers which are arranged in sequence, the tundish car is the tundish car for the three-strand continuous casting machine according to claim 1, the lifting frame (2) supports the tundish (3), and the bottom of the tundish (3) is provided with three water outlets, and the three water outlets correspond one by one to the three crystallizers.

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