Three-flow continuous casting machine tundish car

Abstract

The invention relates to a three-flow continuous casting machine tundish car which comprises a supporting bottom support structure capable of moving along a ground rail, a lifting structure capable of supporting a tundish and driving the tundish to ascend and descend is connected to the supporting bottom support structure, and a transverse moving structure capable of driving the tundish to transversely move along the lifting structure is connected to the lifting structure. The lifting structure is further provided with a weighing unit capable of weighing the intermediate tank in real time. The device is in a full floor type, has a special structure, can well support the ultra-long tundish of a three-flow slab continuous casting machine or a three-flow beam blank continuous casting machine, and realizes lifting, transverse fine adjustment, transportation and weighing of the tundish.

Description

Technical Field

[0001] The present invention relates to the technical field of continuous casting, and particularly to an intermediate ladle car for a three-strand continuous caster. Background Art

[0002] In recent years, as the converter equipment in the steel industry has gradually developed towards large-scale, the existing conventional two-strand slab continuous caster cannot match the rapid smelting cycle of large converters even when casting at the highest casting speed. At the same time, if the casting speed of the continuous caster is too high, it will lead to adverse factors such as increased equipment wear, deterioration of the internal and external quality of the cast slab, and increased risk of breakout. Therefore, three-strand slab continuous casters or three-strand special-shaped billet continuous casters have emerged.

[0003] The intermediate ladle of a three-strand slab continuous caster is relatively longer and can hold more molten steel. The intermediate ladle car needs to consider the number and position of the intermediate ladle support points to support the intermediate ladle and reduce the deformation of the intermediate ladle. The structure of the intermediate ladle car also needs to be studied and optimized in combination with the production operation characteristics of three-strand slabs.

[0004] Therefore, based on years of experience and practice in the relevant industry, the inventor of the present invention proposes an intermediate ladle car for a three-strand continuous caster to overcome the defects of the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide an intermediate ladle car for a three-strand continuous caster. The present invention is of a fully floor-mounted type and has a special structure, which can well support the ultra-long intermediate ladle of a three-strand slab continuous caster or a three-strand special-shaped billet continuous caster, and realize the lifting, lateral fine-tuning, transportation and weighing of the intermediate ladle.

[0006] The purpose of the present invention is achieved as follows. An intermediate ladle car for a three-strand continuous caster includes a support bottom bracket structure that can move along a ground track. A lifting structure that can support the intermediate ladle and drive the intermediate ladle to lift is connected to the support bottom bracket structure. A transverse movement structure that can drive the intermediate ladle to move laterally along the lifting structure is connected to the lifting structure. A weighing unit that can weigh the intermediate ladle in real time is also provided on the lifting structure.

[0007] In a preferred embodiment of the present invention, the lifting structure includes a lifting frame body. A plurality of lifting hydraulic cylinders are connected to the support bottom bracket structure. The first end of each lifting hydraulic cylinder is connected to the support bottom bracket structure, and the second end of each lifting hydraulic cylinder is connected to the lifting frame body.

[0008] In a preferred embodiment of the present invention, the support bottom bracket structure includes an inner arc side support main beam and an outer arc side support main beam arranged in parallel at intervals. A gantry frame is provided on the inner arc side support main beam. The space below the gantry frame forms a second-flow inner arc side production operation space. The first end of the inner arc side support main beam, away from the side of the gantry frame, forms a first-flow inner arc side production operation space. The second end of the inner arc side support main beam, away from the side of the gantry frame, forms a third-flow inner arc side production operation space. The inner arc side support main beam and the outer arc side support main beam are connected by a support connection beam structure.

[0009] In a preferred embodiment of the present invention, the support connection beam structure includes a first support connection beam, a second support connection beam, a third support connection beam, and a fourth support connection beam arranged at intervals. The first flowing water port of the tundish is accommodated on the side of the first support connection beam away from the gantry frame. The second flowing water port of the tundish is accommodated between the second support connection beam and the third support connection beam. The third flowing water port of the tundish is accommodated on the side of the fourth support connection beam away from the gantry frame.

[0010] In a preferred embodiment of the present invention, the lifting frame body includes a first lifting frame and a second lifting frame symmetrically disposed on both sides of the gantry frame. The first lifting frame includes a first inner arc side lifting main beam and a first outer arc side lifting main beam arranged in parallel at intervals. The first inner arc side lifting main beam and the first outer arc side lifting main beam are connected by a first lifting connection beam. The second lifting frame includes a second inner arc side lifting main beam and a second outer arc side lifting main beam arranged in parallel at intervals. The second inner arc side lifting main beam and the second outer arc side lifting main beam are connected by a second lifting connection beam. Lifting hydraulic cylinders are respectively connected to the first inner arc side lifting main beam, the first outer arc side lifting main beam, the second inner arc side lifting main beam, and the second outer arc side lifting main beam. Each of the lifting hydraulic cylinders lifts and lowers synchronously.

[0011] In a preferred embodiment of the present invention, the lifting hydraulic cylinder includes a lifting cylinder barrel, and the lifting cylinder barrel can slidably penetrate through a lifting cylinder rod. The bottom end of the lifting cylinder rod is connected to the support bottom bracket structure. An ear shaft block is connected to the lifting hydraulic cylinder.

[0012] A first inner arc side hydraulic cylinder support is provided on the first inner arc side lifting main beam. The lifting cylinder barrel of a lifting hydraulic cylinder is fixedly connected to the first inner arc side hydraulic cylinder support. A first outer arc side hydraulic cylinder support is provided on the first outer arc side lifting main beam. A sliding connection hole is provided on the first outer arc side hydraulic cylinder support along the transverse direction of the lifting frame body. The ear shaft block of a lifting hydraulic cylinder can be horizontally slidably connected in the sliding connection hole.

[0013] A second inner arc side lifting main beam is provided with a second inner arc side hydraulic cylinder support, and a lifting cylinder barrel of a lifting hydraulic cylinder is fixedly connected to the second inner arc side hydraulic cylinder support; a second outer arc side lifting main beam is provided with a second outer arc side hydraulic cylinder support, and the second outer arc side hydraulic cylinder support is provided with a sliding connection hole arranged transversely along the lifting frame body, and a trunnion block of a lifting hydraulic cylinder is slidably connected transversely in the sliding connection hole.

[0014] In a preferred embodiment of the present invention, support rollers for supporting the tundish are respectively arranged on the first inner arc side lifting main beam, the first outer arc side lifting main beam, the second inner arc side lifting main beam and the second outer arc side lifting main beam, a weighing sensor is arranged on the support roller, and the weighing sensor constitutes the weighing unit.

[0015] In a preferred embodiment of the present invention, the transverse movement structure includes a transverse fine-tuning hydraulic cylinder fixedly supported on the lifting frame body and a transverse fine-tuning support swingably hinged on the lifting frame body, and the transverse fine-tuning hydraulic cylinder can stretch and drive the transverse fine-tuning support to swing so as to transversely fine-tune the tundish supported on the lifting frame body.

[0016] In a preferred embodiment of the present invention, the bottom end of the transverse fine-tuning support is hinged to the lifting frame body, a transverse fine-tuning guide wheel capable of being stuck in a transverse fine-tuning card slot of the tundish is connected inside the transverse fine-tuning support, and a transverse movement cylinder connecting ear seat is arranged on one side of the transverse fine-tuning support close to the lifting frame body; the transverse fine-tuning hydraulic cylinder includes a transverse movement cylinder barrel and a transverse movement cylinder rod, the transverse movement cylinder barrel is fixedly connected to the lifting frame body, the first end of the transverse movement cylinder rod is hermetically arranged inside the transverse movement cylinder barrel, and the second end of the transverse movement cylinder rod is hinged to the transverse movement cylinder connecting ear seat through a hinge shaft.

[0017] In a preferred embodiment of the present invention, driving wheels are connected to the outer arc side support main beam, a wheel driving device is connected to the driving wheels, driven wheels are connected to the inner arc side support main beam, and the driving wheels and the driven wheels are used for supporting and driving the tundish car of the three-strand continuous casting machine to travel on the ground track.

[0018] In a preferred embodiment of the present invention, a first-strand mold smoke exhaust device, a second-strand mold smoke exhaust device and a third-strand mold smoke exhaust device with openings downward are connected to the bottom surface of the outer arc side support main beam.

[0019] As described above, the tundish car of the three-strand continuous casting machine of the present invention has the following beneficial effects:

[0020] The tundish car of the three-strand continuous casting machine of the present invention has a fully floor-mounted structure type, moves along the ground track, does not require elevated tracks and corresponding support structures, the lifting structure can support the tundish and drive the tundish to lift, and the transverse movement structure can drive the tundish to move horizontally along the lifting structure; the present invention can well support the ultra-long tundish of the three-strand slab continuous casting machine or the three-strand special-shaped billet continuous casting machine, and realize the lifting, horizontal fine adjustment, transportation and weighing of the tundish. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following drawings are only intended to illustrate and explain the present invention schematically and do not limit the scope of the present invention.

[0022] Wherein:

[0023] Figure 1 : is the front view of the tundish car of the three-strand continuous casting machine of the present invention.

[0024] Figure 2 : is the top view of the tundish car of the three-strand continuous casting machine of the present invention.

[0025] Figure 3 : is the side view of the tundish car of the three-strand continuous casting machine of the present invention.

[0026] Figure 4 : is the schematic diagram of the tundish car of the three-strand continuous casting machine of the present invention supporting the tundish.

[0027] In the figure:

[0028] 1. Support bottom bracket structure;

[0029] 101. First-strand inner arc side production operation space; 102. Second-strand inner arc side production operation space; 103. Third-strand inner arc side production operation space;

[0030] 11. Inner arc side support main beam;

[0031] 12. Outer arc side support main beam;

[0032] 13. Gantry frame;

[0033] 141. First support connection beam; 142. Second support connection beam; 143. Third support connection beam; 144. Fourth support connection beam;

[0034] 151. Driving wheel; 152. Wheel driving device; 153. Driven wheel;

[0035] 161. First-strand mold fume exhaust device; 162. Second-strand mold fume exhaust device; 163. Third-strand mold fume exhaust device;

[0036] 2. Lifting structure;

[0037] 21. Lifting hydraulic cylinder; 211. Lifting cylinder barrel;

[0038] 22. First lifting frame; 221. First inner arc side lifting main beam; 2211. First inner arc side hydraulic cylinder support; 222. First outer arc side lifting main beam; 2221. First outer arc side hydraulic cylinder support; 2222. Sliding connection hole;

[0039] 23. Second lifting frame; 231. Second inner arc side lifting main beam; 232. Second outer arc side lifting main beam;

[0040] 241. First lifting connecting beam; 242. Second lifting connecting beam;

[0041] 25. Support roller;

[0042] 26. Intermediate ladle guiding device;

[0043] 3. Transverse movement structure;

[0044] 31. Transverse fine-tuning hydraulic cylinder; 32. Transverse fine-tuning support; 33. Transverse movement cylinder connecting ear seat;

[0045] 4. Intermediate ladle. Detailed implementation manners

[0046] For a clearer understanding of the technical features, objectives, and effects of the present invention, the detailed implementation manners of the present invention are now described with reference to the accompanying drawings.

[0047] The detailed implementation manners of the present invention described herein are only for the purpose of explaining the objectives of the present invention and should not be construed in any way as a limitation of the present invention. Under the teaching of the present invention, those skilled in the art can conceive any possible variations based on the present invention, and these should all be regarded as belonging to the scope of the present invention. It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0049] As Figures 1 to 4 shown, the present invention provides a tundish car for a three-strand continuous casting machine, including a support bottom bracket structure 1 that can move along a ground track (a track arranged on the ground, and an existing track structure can be adopted), and an elevating structure 2 connected to the support bottom bracket structure 1 that can support the tundish 4 and drive the tundish to lift and lower.

[0050] A transverse movement structure 3 is connected to the elevating structure 2, which can drive the tundish 4 to move horizontally along the elevating structure (the horizontal direction refers to the direction perpendicular to the traveling direction of the tundish car for the three-strand continuous casting machine). A weighing unit for weighing the tundish 4 in real time is also provided on the elevating structure 2.

[0051] The tundish car of the three-strand continuous casting machine of the present invention has a fully floor-mounted structure type, moves along the ground track, and does not require elevated tracks and corresponding support structures. The elevating structure can support the tundish and drive the tundish to lift and lower, and the transverse movement structure can drive the tundish to move horizontally along the elevating structure. The present invention can well support the ultra-long tundish of a three-strand slab continuous casting machine or a three-strand special-shaped billet continuous casting machine, and realize the lifting, horizontal fine adjustment, transportation, and weighing of the tundish.

[0052] Further, as Figure 1 、 Figure 3 shown, the elevating structure 2 includes an elevating frame body. A plurality of elevating hydraulic cylinders 21 are connected to the support bottom bracket structure 1. The first ends of the elevating hydraulic cylinders 21 are connected to the support bottom bracket structure 1, and the second ends of the elevating hydraulic cylinders 21 are connected to the elevating frame body. The elevating frame body is connected to the support bottom bracket structure 1 (support frame) through 4 elevating hydraulic cylinders 21, and the elevating hydraulic cylinders 21 realize the overall rise or fall of the tundish 4 along with the elevating frame body.

[0053] Further, as Figure 1 、 Figure 2 、 Figure 3As shown, the support bottom bracket structure 1 includes an inner arc side support main beam 11 and an outer arc side support main beam 12 that are arranged in parallel at intervals. A gantry frame 13 is provided on the inner arc side support main beam 11 (the inner arc side support main beam 11 is disconnected at the second flow, and the gantry frame 13 is provided at the disconnection to connect the beams on both sides). The space below the gantry frame 13 constitutes the second flow inner arc side production operation space 102. The side of the first end of the inner arc side support main beam 11 away from the gantry frame 13 constitutes the first flow inner arc side production operation space 101. The side of the second end of the inner arc side support main beam 11 away from the gantry frame 13 constitutes the third flow inner arc side production operation space 103. The inner arc side support main beam 11 and the outer arc side support main beam 12 are connected by a support connection beam structure. The inner arc side, outer arc side, and three flows (the first flow, the second flow, and the third flow) are the same as those in the prior art.

[0054] Further, as Figure 1 、 Figure 2 shown, the support connection beam structure includes the first support connection beam 141, the second support connection beam 142, the third support connection beam 143, and the fourth support connection beam 144 that are arranged at intervals. The first water outlet of the tundish is accommodated on the side of the first support connection beam 141 away from the gantry frame 13. The second water outlet of the tundish is accommodated between the second support connection beam 142 and the third support connection beam 143. The third water outlet of the tundish is accommodated on the side of the fourth support connection beam 144 away from the gantry frame 13.

[0055] The structural form of the support connection beam structure can ensure that the tundish water outlets (the first water outlet, the second water outlet, and the third water outlet) and related equipment will not interfere with the support bottom bracket structure 1.

[0056] Further, as Figure 1 、 Figure 2 shown, the lifting frame body includes a first lifting frame 22 and a second lifting frame 23 that are symmetrically disposed on both sides of the gantry frame 13. The first lifting frame 22 includes a first inner arc side lifting main beam 221 and a first outer arc side lifting main beam 222 that are arranged in parallel at intervals. The first inner arc side lifting main beam 221 and the first outer arc side lifting main beam 222 are connected by a first lifting connection beam 241. The second lifting frame 23 includes a second inner arc side lifting main beam 231 and a second outer arc side lifting main beam 232 that are arranged in parallel at intervals. The second inner arc side lifting main beam 231 and the second outer arc side lifting main beam 232 are connected by a second lifting connection beam 242. Lifting hydraulic cylinders 21 are respectively connected to the first inner arc side lifting main beam 221, the first outer arc side lifting main beam 222, the second inner arc side lifting main beam 231, and the second outer arc side lifting main beam 232, and the lifting hydraulic cylinders 21 lift synchronously.

[0057] The gantry frame 13 and the spaced connecting beam structure of the support bottom bracket structure 1 are designed to ensure that there is sufficient production operation space on the inner arc side for each flow.

[0058] Furthermore, as Figure 1 , Figure 2 shown, the lifting hydraulic cylinder 21 includes a lifting cylinder barrel 211 which can slidably penetrate the lifting cylinder rod, and the bottom end of the lifting cylinder rod is connected to the support bottom bracket structure; a trunnion block is connected to the lifting hydraulic cylinder 21.

[0059] The number of the lifting hydraulic cylinders 21 is 4, and the 4 lifting hydraulic cylinders 21 are ensured to lift synchronously by a hydraulic system synchronizing device (prior art); the lifting cylinder rods of the lifting hydraulic cylinders 21 are fixed on the support bottom bracket structure, and the lifting cylinder barrels 211 (sleeves) drive the lifting frame body (lifting frame) and the tundish to lift relatively; there is sufficient contact length between the lifting cylinder rods and the lifting cylinder barrels 211 (sleeves) of the lifting hydraulic cylinders 21 to serve as the guiding limit for the lifting frame body (lifting frame) and the tundish during the lifting process.

[0060] As Figure 2 shown, a first inner arc side liquid cylinder support 2211 is arranged on the first inner arc side lifting main beam 221, and the lifting cylinder barrel 211 of a lifting hydraulic cylinder 21 is fixedly connected to the first inner arc side liquid cylinder support 2211; a first outer arc side liquid cylinder support 2221 is arranged on the first outer arc side lifting main beam 222, and a sliding connection hole 2222 arranged transversely along the lifting frame body is arranged on the first outer arc side liquid cylinder support 2221, and the trunnion block of a lifting hydraulic cylinder 21 can be slidably connected in the sliding connection hole 2222, and the trunnion block can slide in the sliding connection hole 2222 to prevent large internal forces caused by the static indeterminacy of the lifting frame body.

[0061] A second inner arc side liquid cylinder support is arranged on the second inner arc side lifting main beam 231, and the lifting cylinder barrel of a lifting hydraulic cylinder is fixedly connected to the second inner arc side liquid cylinder support; a second outer arc side liquid cylinder support is arranged on the second outer arc side lifting main beam 232, and a sliding connection hole arranged transversely along the lifting frame body is arranged on the second outer arc side liquid cylinder support, and the trunnion block of a lifting hydraulic cylinder can be slidably connected in the sliding connection hole.

[0062] Furthermore, as Figure 1 , Figure 3 shown, support rollers 25 for supporting the tundish are respectively arranged on the first inner arc side lifting main beam 221, the first outer arc side lifting main beam 222, the second inner arc side lifting main beam 231 and the second outer arc side lifting main beam 232, and weighing sensors are arranged on the support rollers 25, and the weighing sensors form a weighing unit to realize the real-time weighing of the tundish.

[0063] In a specific embodiment of the present invention, eight support rollers 25 are uniformly arranged on the lifting frame body to provide multi-point support for the tundish 4 and reduce the deformation of the tundish.

[0064] The support rollers 25 of the tundish 4 can roll freely, enabling the tundish 4 to roll on the support rollers 25 to achieve lateral fine adjustment of the tundish 4.

[0065] Furthermore, as shown in Figure 1 , Figure 2 , Figure 3 For the convenience of supporting and positioning the tundish 4, a tundish guiding device 26 is connected to the first inner arc side cylinder support 2211, the first outer arc side cylinder support 2221, the second inner arc side cylinder support, and the second outer arc side cylinder support.

[0066] Furthermore, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 The transverse movement structure 3 includes a transverse fine adjustment hydraulic cylinder 31 fixedly supported on the lifting frame body and a transverse fine adjustment bracket 32 swingably hinged to the lifting frame body. The transverse fine adjustment hydraulic cylinder 31 can extend and retract to drive the transverse fine adjustment bracket 32 to swing for laterally fine adjusting the tundish 4 supported on the lifting frame body.

[0067] Furthermore, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 The bottom end of the transverse fine adjustment bracket 32 is hinged to the lifting frame body. A transverse fine adjustment guide wheel capable of being stuck in the transverse fine adjustment card slot of the tundish is connected inside the transverse fine adjustment bracket 32. A transverse movement cylinder connecting ear seat 33 is arranged on one side of the transverse fine adjustment bracket close to the lifting frame body. The transverse fine adjustment hydraulic cylinder includes a transverse movement cylinder barrel and a transverse movement cylinder rod. The transverse movement cylinder barrel is fixedly connected to the lifting frame body. The first end of the transverse movement cylinder rod is hermetically inserted into the transverse movement cylinder barrel, and the second end of the transverse movement cylinder rod is hinged to the transverse movement cylinder connecting ear seat through a hinge shaft.

[0068] When the transverse fine adjustment hydraulic cylinder 31 operates, it drives the transverse fine adjustment bracket 32 to rotate, thereby pushing the tundish to roll on the support rollers to achieve lateral fine adjustment of the tundish 4.

[0069] Furthermore, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, drive wheels 151 are connected to the outer arc side support main beam 12, and a wheel drive device 152 is connected to the drive wheels 151. Driven wheels 153 are connected to the inner arc side support main beam 11. The drive wheels 151 and the driven wheels 153 are used to support and drive the tundish car of the three-strand continuous caster to travel on the ground track. The support bottom bracket structure 1 and the structures installed thereon travel on the track through the wheels to realize the transportation of the tundish 4.

[0070] In a specific embodiment of the present invention, two driven wheels 153 are arranged on the inner arc side of the support bottom bracket structure 1 to support the tundish car to travel on the track; two drive wheels 151 are arranged on the outer arc side of the support bottom bracket structure 1 to support the tundish car to travel on the track, and the drive wheels 151 are installed with a wheel drive device 152 to provide the power for traveling.

[0071] Further, as Figure 1 、 Figure 2 shown, the bottom surface of the outer arc side support main beam 12 is connected with a first-strand mold smoke exhaust device 161, a second-strand mold smoke exhaust device 162 and a third-strand mold smoke exhaust device 163 with openings downward.

[0072] As described above, the tundish car of the three-strand continuous caster of the present invention has the following beneficial effects:

[0073] The tundish car of the three-strand continuous caster of the present invention has a fully floor-mounted structure type, moves along the ground track, does not require elevated tracks and corresponding support structures, the lifting structure can support the tundish and drive the tundish to lift, and the transverse movement structure can drive the tundish to move horizontally along the lifting structure; the present invention can well support the ultra-long tundish of the three-strand slab continuous caster or the three-strand special-shaped billet continuous caster, and realize the lifting, horizontal fine adjustment, transportation and weighing of the tundish.

[0074] The above are only the schematic specific embodiments of the present invention and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A tundish car for a three-strand continuous caster, characterized in that, It includes a support bottom bracket structure that can move along a ground track. An elevating structure that can support an intermediate ladle and drive the intermediate ladle to lift is connected to the support bottom bracket structure. A transverse movement structure that can drive the intermediate ladle to move transversely along the elevating structure is connected to the elevating structure. A weighing unit that can weigh the intermediate ladle in real time is also provided on the elevating structure.

2. The tundish car of the three-strand continuous caster according to claim 1, characterized in that, The elevating structure includes an elevating frame body. A plurality of elevating hydraulic cylinders are connected to the support bottom bracket structure. The first end of each elevating hydraulic cylinder is connected to the support bottom bracket structure, and the second end of each elevating hydraulic cylinder is connected to the elevating frame body.

3. The tundish car of the three-strand continuous caster according to claim 2, characterized in that, The support bottom bracket structure includes an inner arc side support main beam and an outer arc side support main beam that are arranged in parallel at intervals. A gantry frame is arranged on the inner arc side support main beam. The space below the gantry frame forms a second stream inner arc side production operation space. The side of the first end of the inner arc side support main beam away from the gantry frame forms a first stream inner arc side production operation space. The side of the second end of the inner arc side support main beam away from the gantry frame forms a third stream inner arc side production operation space. The inner arc side support main beam and the outer arc side support main beam are connected by a support connection beam structure.

4. The tundish car of the three-strand continuous caster according to claim 3, characterized in that, The support connection beam structure includes a first support connection beam, a second support connection beam, a third support connection beam, and a fourth support connection beam that are arranged at intervals. The first water outlet of the intermediate ladle is accommodated on the side of the first support connection beam away from the gantry frame. The second water outlet of the intermediate ladle is accommodated between the second support connection beam and the third support connection beam. The third water outlet of the intermediate ladle is accommodated on the side of the fourth support connection beam away from the gantry frame.

5. The tundish car of the three-strand continuous caster according to claim 3, characterized in that, The elevating frame body includes a first elevating frame and a second elevating frame that are symmetrically arranged on both sides of the gantry frame. The first elevating frame includes a first inner arc side elevating main beam and a first outer arc side elevating main beam that are arranged in parallel at intervals. The first inner arc side elevating main beam and the first outer arc side elevating main beam are connected by a first elevating connection beam. The second elevating frame includes a second inner arc side elevating main beam and a second outer arc side elevating main beam that are arranged in parallel at intervals. The second inner arc side elevating main beam and the second outer arc side elevating main beam are connected by a second elevating connection beam. The elevating hydraulic cylinders are respectively connected to the first inner arc side elevating main beam, the first outer arc side elevating main beam, the second inner arc side elevating main beam, and the second outer arc side elevating main beam, and each elevating hydraulic cylinder lifts synchronously.

6. The tundish car of the three-strand continuous caster according to claim 5, characterized in that, The elevating hydraulic cylinder includes an elevating cylinder barrel. The elevating cylinder barrel can slidably penetrate an elevating cylinder rod. The bottom end of the elevating cylinder rod is connected to the support bottom bracket structure. An ear shaft block is connected to the elevating hydraulic cylinder. A first inner arc side hydraulic cylinder support is arranged on the first inner arc side elevating main beam. The elevating cylinder barrel of an elevating hydraulic cylinder is fixedly connected to the first inner arc side hydraulic cylinder support. A first outer arc side hydraulic cylinder support is arranged on the first outer arc side elevating main beam. A sliding connection hole arranged transversely along the elevating frame body is arranged on the first outer arc side hydraulic cylinder support. The ear shaft block of an elevating hydraulic cylinder can be horizontally slidably connected in the sliding connection hole. A second inner arc side lifting main beam is provided with a second inner arc side hydraulic cylinder support, and a lifting cylinder barrel of a lifting hydraulic cylinder is fixedly connected to the second inner arc side hydraulic cylinder support; a second outer arc side lifting main beam is provided with a second outer arc side hydraulic cylinder support, and the second outer arc side hydraulic cylinder support is provided with a sliding connection hole arranged transversely along the lifting frame body, and a trunnion block of a lifting hydraulic cylinder is slidably connected transversely in the sliding connection hole.

7. The tundish car of the three-strand continuous caster according to claim 5, characterized in that, The first inner arc side lifting main beam, the first outer arc side lifting main beam, the second inner arc side lifting main beam, and the second outer arc side lifting main beam are respectively provided with support rollers for supporting the tundish, and weighing sensors are arranged on the support rollers, and the weighing sensors constitute the weighing unit.

8. The tundish car of the three-strand continuous caster according to claim 2, characterized in that, The transverse movement structure includes a transverse fine-tuning hydraulic cylinder fixedly supported on the lifting frame body and a transverse fine-tuning bracket swingably hinged on the lifting frame body, and the transverse fine-tuning hydraulic cylinder can stretch and drive the transverse fine-tuning bracket to swing so as to transversely fine-tune the tundish supported on the lifting frame body.

9. The tundish car of the three-strand continuous caster according to claim 8, characterized in that, The bottom end of the transverse fine-tuning bracket is hinged to the lifting frame body, a transverse fine-tuning guide wheel capable of being stuck in a transverse fine-tuning card slot of the tundish is connected in the transverse fine-tuning bracket, and a transverse movement cylinder connecting ear seat is arranged on one side of the transverse fine-tuning bracket close to the lifting frame body; the transverse fine-tuning hydraulic cylinder includes a transverse movement cylinder barrel and a transverse movement cylinder rod, the transverse movement cylinder barrel is fixedly connected to the lifting frame body, the first end of the transverse movement cylinder rod is hermetically arranged in the transverse movement cylinder barrel, and the second end of the transverse movement cylinder rod is hinged to the transverse movement cylinder connecting ear seat through a hinge shaft.

10. The tundish car of the three-strand continuous caster according to claim 3, characterized in that, Drive wheels are connected to the outer arc side support main beam, a wheel drive device is connected to the drive wheels, driven wheels are connected to the inner arc side support main beam, and the drive wheels and the driven wheels are used to support and drive the three-strand continuous casting tundish car to travel on the ground track.

11. The tundish car of the three-strand continuous caster according to claim 3, characterized in that, The bottom surface of the outer arc side support main beam is connected with a first-strand mold smoke exhaust device, a second-strand mold smoke exhaust device, and a third-strand mold smoke exhaust device with openings downward.

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