Synchronous control device for lifting of tundish of continuous casting machine

Abstract

The utility model provides a continuous casting machine tundish lifting synchronous control device which comprises a device shell and tundishes, a plurality of sliding channels are welded to the outer side wall of the device shell, and the tundishes are connected into the sliding channels in a sliding mode. A plurality of lifting mechanisms used for providing ascending and descending power for the tundishes are arranged in the device shell, the lifting mechanisms correspond to the tundishes one to one, and a synchronous control assembly is arranged between every two adjacent lifting mechanisms. The lifting mechanism is arranged in the device shell, so that each tundish can be independently operated to ascend or descend, and the situations such as heating of the tundish, loading and unloading of a long nozzle, maintenance of the tundish and the like are conveniently handled; by arranging the synchronous control assembly, the multiple tundishes can ascend or descend synchronously, and in the process that the submersed nozzle device extends into a crystallizer for pouring, the molten steel flowing state can be improved, and the continuous casting operation rate can be increased.

Description

Technical Field

[0001] The utility model relates to the field of continuous casting machines, in particular to a tundish lifting synchronous control device for continuous casting machines. Background Art

[0002] The tundish is an important equipment in the metallurgical process of the continuous casting machine. With the increasing requirements for steel quality, various ladle refining technologies have been developed, the purpose of which is to improve the purity. The tundish is a refractory container between the continuous casting ladle and the crystallizer. The molten steel refined outside the furnace can be said to be "clean", but it may be contaminated again when poured into the tundish. Therefore, the tundish should not be regarded as a simple molten steel transition container, but as a continuous metallurgical reactor. The measures used in ladle refining can be transplanted to the tundish to further purify the molten steel. For this reason, the concept of tundish metallurgy was proposed and has received people's attention.

[0003] A continuous casting machine generally has multiple tundishes, which are raised and lowered many times during the entire metallurgical process. The purpose of raising and lowering the tundish is to meet the needs of baking the tundish, loading and unloading the long nozzle, and extending the submerged nozzle device into the crystallizer for casting. At the same time, the tundish will also face various situations such as maintenance and replacement. Therefore, it is necessary for multiple tundishes to be able to be raised and lowered individually and synchronously. The asynchronous lifting of the tundish will seriously affect production. Utility Model Content

[0004] In order to solve the problem in the prior art that multiple tundishes need to be lifted and lowered individually and synchronously, the utility model provides a tundish lifting and lowering synchronous control device for a continuous casting machine;

[0005] The utility model provides a synchronous control device for lifting and lowering the middle bag of a continuous casting machine, which adopts the following technical scheme:

[0006] A synchronous control device for lifting a tundish of a continuous casting machine comprises a device shell and a tundish, wherein a plurality of sliding channels are welded to the outer wall of the device shell, and a tundish is slidably connected in each of the sliding channels, and a plurality of lifting mechanisms for providing lifting and lowering power for the tundish are arranged inside the device shell, wherein the lifting mechanisms correspond to the tundish one by one, and a synchronous control component is arranged between adjacent lifting mechanisms;

[0007] Furthermore, two opposite outer side walls of the tundish are respectively integrally formed with racks, and two opposite side walls of the sliding channel are respectively provided with sliding grooves for the racks to slide up and down, and the tundish is slidably connected to the inside of the sliding channel through the sliding grooves;

[0008] Furthermore, the lifting mechanism includes a power wheel, a direction-changing wheel, a driving device and two moving wheels; the parts of the two moving wheels located outside the device shell are respectively meshed and connected with the racks on both sides of the tundish; the inside of the device shell is rotatably connected with a direction-changing wheel, the bottom of the device shell is fixedly installed with a driving device, the output end of the driving device is fixedly connected with a power wheel, the power wheel is meshed and connected with the part of one of the moving wheels located inside the device shell, and the power wheel is meshed and connected with the part of the other moving wheel located inside the device shell through the direction-changing wheel;

[0009] Furthermore, the synchronous control assembly includes a hydraulic cylinder, a rotating bracket and a synchronous wheel; the bottom of the device housing is fixedly mounted with a hydraulic cylinder by bolts, the top of the gas rod of the hydraulic cylinder is fixedly mounted with a rotating bracket, the top of the gas rod of the hydraulic cylinder is rotatably connected with a synchronous wheel through the rotating bracket, and the synchronous wheel can be meshed and connected with two adjacent power wheels at the same time;

[0010] Further, the driving device is one or more of a driving motor, a belt conveyor or a hydraulic driving device;

[0011] Furthermore, the number of the sliding channels, the intermediate packages and the lifting mechanisms is N, the number of the synchronous control components is N-1, and N≥2.

[0012] In summary, the beneficial effects of the utility model are:

[0013] The utility model arranges a lifting mechanism inside the device shell, and each tundish can be individually operated to rise or fall, which is convenient for heating the tundish, loading and unloading the long nozzle, and repairing the tundish. By arranging a synchronous control component, multiple tundishes can be synchronously raised or lowered, and in the process of extending the immersion nozzle device into the crystallizer for casting, the flow state of molten steel can be improved, thereby increasing the continuous casting operation rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main view of the utility model;

[0015] Figure 2 It is a perspective diagram of the rear side of the utility model;

[0016] Figure 3 It is a left perspective schematic diagram of the utility model;

[0017] Figure 4 This is a schematic diagram of the specific structure of the tundish of the utility model;

[0018] Figure 5 It is a schematic diagram of the rear side section of the utility model;

[0019] Figure 6It is a rear cross-sectional schematic diagram of the utility model.

[0020] As shown in the figure: 1-device housing, 2-middle package, 21-rack, 3-sliding channel, 31-slideway, 41-power wheel, 42-direction-changing wheel, 43-driving device, 44-moving wheel, 5-synchronous control component, 51-hydraulic cylinder, 52-rotating bracket, 53-synchronous wheel. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 -Attached Figure 6 The utility model is further described in detail:

[0022] The utility model discloses a synchronous control device for lifting and lowering the middle ladle of a continuous casting machine. Figure 1 , Figure 2 As shown, the utility model of the synchronous control device for lifting the tundish of the continuous casting machine includes a device shell 1 and a tundish 2. The outer wall of the device shell 1 is welded with a plurality of sliding channels 3. Each sliding channel 3 is slidably connected with a tundish 2. The inside of the device shell 1 is provided with a plurality of lifting mechanisms for providing lifting and lowering power for the tundish 2. The lifting mechanisms correspond to the tundish 2 one by one, and a synchronous control component 5 is provided between adjacent lifting mechanisms. In this embodiment, by providing a lifting mechanism inside the device shell 1, the independent control of the tundish 2 is realized, and the lifting or lowering of the tundish 2 can be adjusted according to the casting situation, so that the heating of the tundish 2, the loading and unloading of the long nozzle, and the maintenance of the tundish 2 are simpler and faster. By providing the synchronous control component 5, it is realized that multiple tundishes 2 are synchronously raised or lowered at the same time. In the process of extending the immersion nozzle device into the crystallizer for casting, the flow state of molten steel can be improved, and the continuous casting operation rate can be improved. Preferably, the number of sliding channels 3, tundish 2 and lifting mechanisms is N, and the number of synchronous control components 5 is N-1, and N≥2. Preferably, some support columns are arranged inside the device housing 1, one end of the support column is fixed to the inner wall of the device housing 1, and the other end of the support column is fixed to the bottom wall of the device housing 1, and the support column and the inner wall and bottom wall of the device housing 1 form a triangular structure to enhance the overall structural strength.

[0023] like Figure 1 , Figure 3 , Figure 4 As shown, the two opposite outer side walls of the tundish 2 are respectively integrally formed with racks 21, and the two opposite side walls of the sliding channel 3 are respectively provided with slide grooves 31 for the racks 21 to slide up and down, and the tundish 2 is slidably connected to the inside of the sliding channel 3 through the slide grooves 31; in this embodiment, the specific structure of the sliding channel 3 and the slide grooves 31 is as shown in Figure 1As shown, the sliding channel 3 can provide support for the tundish 2 so that the tundish 2 can only slide longitudinally in the sliding channel 3. Both ends of the slide groove 31 are closed structures. The advantage of this is that it provides a limit for the tundish 2 and will not slip out of the sliding channel 3 during the lifting process of the tundish 2.

[0024] like Figure 5 , Figure 6 As shown, the lifting mechanism includes a power wheel 41, a direction-changing wheel 42, a driving device 43 and two moving wheels 44; the parts of the two moving wheels 44 located outside the device housing 1 are respectively meshed and connected with the racks 21 on both sides of the tundish 2; the inside of the device housing 1 is rotatably connected with the direction-changing wheel 42, the bottom of the device housing 1 is fixedly installed with the driving device 43, the output end of the driving device 43 is fixedly connected with the power wheel 41, the power wheel 41 is meshed and connected with the part of one of the moving wheels 44 located inside the device housing 1, and the power wheel 41 is meshed and connected with the part of the other moving wheel 44 located inside the device housing 1 through the direction-changing wheel 42; in this embodiment, the specific connection relationship between the power wheel 41, the direction-changing wheel 42 and the two moving wheels 44 is as shown in FIG. Figure 6 As shown, Figure 2 , Figure 3 As shown, a rotating shaft is formed in the axial direction of the moving wheel 44, one end of which is rotatably connected to the inner side wall of the device housing 1 through a bearing, and the moving wheel 44 is rotatably connected inside the device housing 1 through the rotating shaft, and a part of it extends out of the device housing 1 and is meshed with the rack 21. A supporting column is fixedly connected to the bottom of the device housing 1, and the top of the supporting column forms an arc surface. The supporting column provides support for the moving wheel 44 through the arc surface and does not hinder the rotation of the moving wheel 44. One moving wheel 44 is directly connected to the power wheel 41, and the other moving wheel 44 is indirectly connected to the power wheel 41. The rotation direction of the indirectly connected moving wheel 44 is changed by the changing wheel 42, so that the two moving wheels 44 can rotate in opposite directions at the same time, thereby driving the displacement of the tundish 2. When in use, the driving device 43 is started, and the driving device 43 drives the power wheel 41 connected thereto to rotate. Under the action of the power wheel 41, the moving wheel 44 directly connected to the power wheel 41 will rotate in the opposite direction of the power wheel 41 at the same angular velocity as the power wheel 41, and the moving wheel 44 indirectly connected to the power wheel 41 will rotate in the same direction as the power wheel 41 at the same angular velocity as the power wheel 41. Under the action of the two moving wheels 44, the tundish 2 will move longitudinally in the sliding channel 3. Preferably, the driving device 43 is one or more of a driving motor, a belt conveyor or a hydraulic driving device.

[0025] like Figure 3 , Figure 5 , Figure 6As shown, the synchronous control component 5 includes a hydraulic cylinder 51, a rotating bracket 52 and a synchronous wheel 53; the hydraulic cylinder 51 is fixedly installed on the bottom of the device housing 1 by bolts, and the rotating bracket 52 is fixedly installed on the top of the gas rod of the hydraulic cylinder 51. The top of the gas rod of the hydraulic cylinder 51 is rotatably connected to the synchronous wheel 53 through the rotating bracket 52, and the synchronous wheel 53 can be meshed and connected with two adjacent power wheels 41 at the same time; in this embodiment, by adding hydraulic cylinders 51 and synchronous wheels 53, multiple tundishes 2 can be synchronously raised or lowered, and when the gas rod of the hydraulic cylinder 51 is extended upward, the synchronous wheel 53 will move upward, and at this time, the synchronous wheel 53 is meshed and connected with the two adjacent power wheels 41 at the same time; when the gas rod of the hydraulic cylinder 51 is retracted, the synchronous wheel 53 is not connected with the two adjacent power wheels 41. For ease of understanding, in this embodiment, the number of driving devices 43 is two. When in use, the tundish 2 is adjusted to the same horizontal height, one driving device 43 is stopped, and only one driving device 43 is used. The hydraulic cylinder 51 is started, and the synchronous wheel 53 located at the top of the gas rod will be meshed and connected with the two adjacent power wheels 41 at the same time. When the driving device 43 is running, the two tundishes 2 will rise or fall synchronously. Preferably, a processor is installed in the device housing 1, and a displacement sensor is installed on the side wall of the sliding channel 3. The processor is electrically connected to the displacement sensor, the driving device 43 and the hydraulic cylinder 51. The height of the tundish 2 is detected by the displacement sensor. When the tundish 2 needs to run synchronously, first, the processor sends an instruction to the driving device 43 to adjust the tundish 2 to the same height; secondly, the processor sends an instruction to the driving device 43 to run the single driving device 43; finally, the hydraulic cylinder 51 is started to mesh the synchronous wheel 53 with the power wheel 41.

[0026] The implementation principle of the embodiment of the utility model is:

[0027] When the tundish 2 is used independently, the driving device 43 is started, and the driving device 43 drives the power wheel 41 connected thereto to rotate. Under the action of the power wheel 41, the moving wheel 44 directly connected to the power wheel 41 rotates in the opposite direction of the power wheel 41 at the same angular velocity as the power wheel 41, and the moving wheel 44 indirectly connected to the power wheel 41 rotates in the same direction as the power wheel 41 at the same angular velocity as the power wheel 41. Under the action of the two moving wheels 44, the tundish 2 moves longitudinally in the sliding channel 3. At this time, multiple tundishes 2 can be operated independently.

[0028] When the tundish 2 is used synchronously, the tundish 2 is adjusted to the same horizontal height, the operation of one driving device 43 is stopped, and only one driving device 43 is used. The hydraulic cylinder 51 is started, and the synchronous wheel 53 located at the top of the gas rod will be engaged and connected with the two adjacent power wheels 41 at the same time. When the driving device 43 is running, multiple tundishes 2 will rise or fall synchronously.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A synchronous control device for lifting and lowering a tundish of a continuous casting machine, comprising a device housing (1) and a tundish (2), characterized in that: A plurality of sliding channels (3) are welded to the outer wall of the device housing (1), and a tundish (2) is slidably connected in each of the sliding channels (3). A plurality of lifting mechanisms for providing ascending and descending power for the tundish (2) are arranged inside the device housing (1), and the lifting mechanisms correspond to the tundish (2) one by one, and a synchronous control component (5) is arranged between adjacent lifting mechanisms.

2. The synchronous control device for lifting and lowering the tundish of a continuous casting machine according to claim 1, characterized in that: The two opposite outer side walls of the tundish (2) are respectively integrally formed with racks (21), and the two opposite side walls of the sliding channel (3) are respectively provided with sliding grooves (31) for the racks (21) to slide up and down, and the tundish (2) is slidably connected to the interior of the sliding channel (3) via the sliding grooves (31).

3. The synchronous control device for lifting and lowering the tundish of a continuous casting machine according to claim 2, characterized in that: The lifting mechanism comprises a power wheel (41), a direction-changing wheel (42), a driving device (43) and two moving wheels (44); the parts of the two moving wheels (44) located outside the device housing (1) are respectively meshed and connected with the racks (21) on both sides of the tundish (2); the inside of the device housing (1) is rotatably connected with the direction-changing wheel (42), the bottom of the device housing (1) is fixedly mounted with the driving device (43), the output end of the driving device (43) is fixedly connected with the power wheel (41), the power wheel (41) is meshed and connected with the part of one of the moving wheels (44) located inside the device housing (1), and the power wheel (41) is meshed and connected with the part of the other moving wheel (44) located inside the device housing (1) through the direction-changing wheel (42).

4. The synchronous control device for lifting and lowering the tundish of a continuous casting machine according to claim 3, characterized in that: The synchronous control component (5) comprises a hydraulic cylinder (51), a rotating bracket (52) and a synchronous wheel (53); the hydraulic cylinder (51) is fixedly mounted on the bottom of the device housing (1) by means of bolts, the rotating bracket (52) is fixedly mounted on the top of the gas rod of the hydraulic cylinder (51), the top of the gas rod of the hydraulic cylinder (51) is rotatably connected to the synchronous wheel (53) via the rotating bracket (52), and the synchronous wheel (53) can be meshed and connected with two adjacent power wheels (41) at the same time.

5. The synchronous control device for lifting and lowering the tundish of a continuous casting machine according to claim 3, characterized in that: The driving device (43) is one or more of a driving motor, a belt conveyor or a hydraulic driving device (43).

6. The synchronous control device for lifting and lowering the tundish of a continuous casting machine according to claim 1, characterized in that: The number of the sliding channels (3), the tundish (2) and the lifting mechanism is N, and the number of the synchronous control components (5) is N-1, where N≥2.

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