Flow control device for continuous casting tundish

Abstract

The utility model relates to the technical field of ferrous metallurgical equipment, in particular to a continuous casting tundish flow control device which comprises a tundish body, a submersed nozzle is arranged at the bottom of the tundish body, supporting blocks are correspondingly installed on the front side and the rear side of the end face of the tundish body, fixing plates are installed on the end faces of the supporting blocks, and the fixing plates are fixed to the tundish body. A lifting assembly is installed on the end face of the fixing plate and comprises a fixing frame, the fixing frame is rotationally connected with a rotating shaft through a connecting hole, a rotating disc is installed at the front end of the rotating shaft, a first connecting pin is installed on the rotating disc, and a connecting rod is rotationally connected to the outer wall of the first connecting pin. By arranging the lifting assembly, the problem that the mode that the stopper is controlled by manually adjusting the position of a handle is tedious in operation is solved, the workload of workers is reduced, and therefore convenience is brought to work of the workers.

Description

Technical Field

[0001] The utility model relates to the technical field of iron and steel metallurgical equipment, in particular to a continuous casting tundish flow control device. Background Art

[0002] During the continuous casting process in a steel plant, the molten steel in the tundish enters the crystallizer through the immersed nozzle, and the flow rate of the molten steel is controlled by a stopper rod that matches the bowl of the nozzle. The continuous casting stopper rod flow control device is a mechanism installed on the tundish. The mechanism is equipped with a fan-shaped gear, which cooperates with the flow control handle. The worker presses down or lifts up the flow control handle to control the flow rate of molten steel injected into the crystallizer, thereby achieving the purpose of controlling the flow rate of molten steel.

[0003] The patent with the publication number of CN217433039U proposed that with the increase of the number of continuous casting furnaces and the abnormal erosion of the stopper rod and the upper water inlet of the tundish, the flow control handle will keep tilting upward, causing the pressure handle to be higher and higher from the steel casting platform, up to 1.5 meters, while the ideal operating height of the flow control handle is 0.9-1.0 meters from the steel casting platform. When the height is too high, it is difficult or even impossible for on-site workers to operate the flow control handle, resulting in the inability to effectively control the flow of molten steel in the casting flow, resulting in the loss of control of the stopper rod and steel overflow and accidental operation of the tundish, which has a serious impact on production, equipment, safe and stable operation. The patent includes a fixed sleeve, a side frame and a flow control handle: a lifting column is movably installed on the upper inner side of the fixed sleeve , and a limit strip is fixedly installed on the front side of the lifting column, and a gear strip is arranged in the middle of the left end of the lifting column, and a cross arm is fixedly installed on the upper end of the lifting column, and a stopper rod is fixedly installed on the right side of the lower end of the cross arm. The auxiliary flow control device for the stopper rod of the continuous casting tundish solves the problem that the flow cannot be controlled or is difficult to control when the height of the flow control handle of the flow control mechanism is abnormal. However, the following problems still exist in this patent: when the flow control handle in the above patent is located at a high place, it is necessary to loosen the locking bolt handle, rotate the auxiliary sleeve so that the bending auxiliary handle faces downward, and then fix the bending auxiliary handle by the locking bolt handle to control the position of the stopper rod. The method of manually adjusting the handle position to control the stopper rod is cumbersome to operate, which brings inconvenience to the user.

[0004] In view of the above problems, a continuous casting tundish flow control device is needed to improve the above problems. Utility Model Content

[0005] The utility model aims to provide a flow control device for a continuous casting tundish to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A continuous casting tundish flow control device comprises a tundish body, an immersion water nozzle is arranged at the bottom of the tundish body, support blocks are installed on the end surface of the tundish body and at the front and rear sides respectively, a fixing plate is installed on the end surface of the support block, a lifting assembly is installed on the end surface of the fixing plate, the lifting assembly comprises a fixing frame, the fixing frame is rotatably connected with a rotating shaft through a connecting hole, a rotating disk is installed at the front end of the rotating shaft, a first connecting pin is installed on the rotating disk, a connecting rod is rotatably connected on the outer wall of the first connecting pin, the other end of the connecting rod is rotatably connected with a second connecting pin through a connecting hole, a connecting block is installed at the rear end of the second connecting pin, a first pulley is installed at the rear end of the rotating shaft, a belt is rotatably connected to the first pulley, a limiting shaft is arranged on the back of the tundish body, a second pulley is rotatably connected on the outer wall of the limiting shaft, a mounting plate is installed on the back of the tundish body, a servo motor is installed on the end surface of the mounting plate, a stopper rod is installed at the bottom of the connecting block, and a limiting cylinder is installed on the fixing plate through the connecting hole.

[0008] As a preferred solution of the utility model, the bottom of the fixing frame is connected to the end surface of the fixing plate, and the second pulley is connected to the belt in a rotational manner.

[0009] As a preferred solution of the utility model, the driving end of the servo motor is connected to the back of the second pulley, and the connection mode between the stopper rod and the limiting cylinder is a sliding connection.

[0010] As a preferred solution of the utility model, the rotating shaft and the limiting cylinder are arranged perpendicular to each other, and the fixing frame and the limiting cylinder are arranged parallel to each other.

[0011] As a preferred solution of the utility model, the support block and the fixing plate are connected together to form a U-shaped structure, and the mounting plate is formed to form an L-shaped structure.

[0012] As a preferred solution of the utility model, the front ends of the first connecting pin and the second connecting pin are provided with limiting members, and the first pulley and the second pulley have the same size and structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, a lifting component is arranged in a continuous casting tundish flow control device, and a servo motor in the component is used to drive the second pulley to rotate, the turntable rotates clockwise with the first connecting pin, the first connecting pin drives the connecting rod to move, the connecting rod rotates on the second connecting pin, and the connecting block drives the stopper rod to move downward. The lifting component is arranged to replace the problem of cumbersome operation of manually adjusting the position of the handle to control the stopper rod, thereby reducing the workload of the staff and bringing convenience to the staff's work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the southeast stereoscopic axonometric structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cutaway structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the southwest stereoscopic axonometric structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the lifting component of the utility model.

[0019] In the figure: 1. Tundish body; 2. Immersed water inlet; 3. Support block; 4. Fixed plate; 5. Lifting assembly; 501. Fixed frame; 502. Rotating shaft; 503. Turntable; 504. First connecting pin; 505. Connecting rod; 506. Second connecting pin; 507. Connecting block; 508. First pulley; 509. Belt; 510. Limiting shaft; 511. Second pulley; 512. Mounting plate; 513. Servo motor; 6. Stopper rod; 7. Limiting cylinder. Implementation

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] Example: See Figure 1-4 A continuous casting tundish flow control device shown in the figure comprises a tundish body 1, an immersion water inlet 2 is arranged at the bottom of the tundish body 1, support blocks 3 are installed on the end surface of the tundish body 1 and at the front and rear sides respectively, a fixing plate 4 is installed on the end surface of the support block 3, a lifting assembly 5 is installed on the end surface of the fixing plate 4, and the lifting assembly 5 comprises a fixing frame 501, the fixing frame 501 is rotatably connected to a rotating shaft 502 through a connecting hole, a rotating disk 503 is installed at the front end of the rotating shaft 502, a first connecting pin 504 is installed on the rotating disk 503, a connecting rod 505 is rotatably connected to the outer wall of the first connecting pin 504, the other end of the connecting rod 505 is rotatably connected to a second connecting pin 506 through a connecting hole, a connecting block 507 is installed at the rear end of the second connecting pin 506, a first pulley 508 is installed at the rear end of the rotating shaft 502, and a belt 509 is rotatably connected to the first pulley 508 A limiting shaft 510 is provided on the back of the tundish body 1, and a second pulley 511 is rotatably connected on the outer wall of the limiting shaft 510. A mounting plate 512 is installed on the back of the tundish body 1, and a servo motor 513 is installed on the end surface of the mounting plate 512. A stopper rod 6 is installed at the bottom of the connecting block 507, and a limiting cylinder 7 is installed on the fixing plate 4 through a connecting hole. The servo motor 513 in the assembly drives the second pulley 511 to rotate, and the turntable 503 rotates clockwise with the first connecting pin 504. The first connecting pin 504 drives the connecting rod 505 to move, and the connecting rod 505 rotates on the second connecting pin 506, and the connecting block 507 drives the stopper rod 6 to move downward. The lifting assembly is provided to replace the cumbersome operation of manually adjusting the handle position to control the stopper rod 6, thereby reducing the workload of the staff and bringing convenience to the staff's operation.

[0025] In this embodiment, refer to Figure 1-4As shown, the bottom of the fixing frame 501 is connected to the end surface of the fixing plate 4, and the connection mode of the second pulley 511 and the belt 509 is a rotational connection; the rotating shaft 502 and the limiting cylinder 7 are arranged perpendicular to each other, and the fixing frame 501 and the limiting cylinder 7 are arranged parallel to each other; the rotating shaft 502 and the limiting cylinder 7 are arranged perpendicular to each other, and the fixing frame 501 and the limiting cylinder 7 are arranged parallel to each other; the support block 3 and the fixing plate 4 are connected together to form a U-shaped structure, and the mounting plate 512 is an L-shaped structure; a limiting member is arranged at the front end of the first connecting pin 504 and the second connecting pin 506, and the size structure of the first pulley 508 and the second pulley 511 is the same; a limiting member is arranged at the front end of the first connecting pin 504 and the second connecting pin 506, and under the limiting action of the limiting member on the connecting rod 505, the connecting rod 505 will not fall off from the first connecting pin 504 and the second connecting pin 506, thereby ensuring the normal operation of the lifting assembly 5 and making the use effect of the lifting assembly 5 better;

[0026] Working principle: When the continuous casting tundish flow control device is in use, the user starts the servo motor 513 through the control panel, and the servo motor 513 drives the second pulley 511 to rotate on the outer wall of the limit shaft 510, and the second pulley 511 drives the belt 509 to rotate, and the belt 509 drives the first pulley 508 to rotate, and the first pulley 508 drives the shaft 502 to rotate on the fixed frame 501, and the shaft 502 drives the turntable 503 to rotate clockwise, and the turntable 503 drives the first connecting pin 504 to move, and the first connecting pin 504 drives one end of the connecting rod 505 to rotate clockwise. The first end of the connecting rod 505 moves and the connecting rod 505 rotates on the outer wall of the first connecting pin 504, and the other end of the connecting rod 505 rotates on the outer wall of the second connecting pin 506. The second connecting pin 506 moves with the connecting block 507. Under the limiting effect of the limiting cylinder 7 on the stopper rod 6, the limiting cylinder 7 moves downward, and the positional relationship between the head of the stopper rod 6 and the water outlet can be adjusted. By setting a lifting component, the problem of manually adjusting the handle position to control the stopper rod 6, which is more cumbersome to operate, is solved, and the workload of the staff is reduced, thereby bringing convenience to the staff's operation.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous casting tundish flow control device, comprising a tundish body (1), characterized in that: The bottom of the tundish body (1) is provided with an immersion water inlet (2), and support blocks (3) are installed on the end surface of the tundish body (1) and on the front and rear sides thereof, respectively, and a fixing plate (4) is installed on the end surface of the support block (3), and a lifting assembly (5) is installed on the end surface of the fixing plate (4), and the lifting assembly (5) comprises a fixing frame (501), and the fixing frame (501) is rotatably connected to a rotating shaft (502) through a connecting hole, and a rotating disk (503) is installed at the front end of the rotating shaft (502), and a first connecting pin (504) is installed on the rotating disk (503), and a connecting rod (505) is rotatably connected to the outer wall of the first connecting pin (504), and the other end of the connecting rod (505) is connected to the rotating shaft (502) through a connecting hole. A second connecting pin (506) is rotatably connected to the hole, a connecting block (507) is installed at the rear end of the second connecting pin (506), a first pulley (508) is installed at the rear end of the rotating shaft (502), a belt (509) is rotatably connected to the first pulley (508), a limiting shaft (510) is provided on the back of the tundish body (1), a second pulley (511) is rotatably connected to the outer wall of the limiting shaft (510), a mounting plate (512) is installed on the back of the tundish body (1), a servo motor (513) is installed on the end surface of the mounting plate (512), a stopper rod (6) is installed at the bottom of the connecting block (507), and a limiting cylinder (7) is installed on the fixing plate (4) through the connecting hole.

2. A continuous casting tundish flow control device according to claim 1, characterized in that: The bottom of the fixing frame (501) is connected to the end surface of the fixing plate (4), and the second pulley (511) is connected to the belt (509) in a rotational manner.

3. The continuous casting tundish flow control device according to claim 1, characterized in that: The driving end of the servo motor (513) is connected to the back of the second pulley (511), and the stopper rod (6) and the limiting cylinder (7) are connected in a sliding manner.

4. The continuous casting tundish flow control device according to claim 1, characterized in that: The rotating shaft (502) and the limiting cylinder (7) are arranged perpendicular to each other, and the fixing frame (501) and the limiting cylinder (7) are arranged parallel to each other.

5. The continuous casting tundish flow control device according to claim 1, characterized in that: The support block (3) and the fixing plate (4) are connected together to form a U-shaped structure, and the mounting plate (512) is formed into an L-shaped structure.

6. The continuous casting tundish flow control device according to claim 1, characterized in that: Limiting members are provided at the front ends of the first connecting pin (504) and the second connecting pin (506); the first belt pulley (508) and the second belt pulley (511) have the same size and structure.

Images