A mold stripping difficult auxiliary stripping device

Abstract

This utility model relates to the field of metallurgical equipment technology and discloses an auxiliary ingot removal device for difficult ingot removal from a crystallizer. It includes a crystallizer placement box, a hydraulic station on one side, a first PLC controller on the front surface of the hydraulic station, a hydraulic cylinder fixedly connected to the front surface, and a weighing hopper inside. A placement assembly is also located inside, comprising a first limiting plate slidably connected inside, and second limiting plates fixedly connected to both sides of the inner wall of the crystallizer placement box. This utility model, by setting up the crystallizer placement box, hydraulic station, and hydraulic cylinder, can achieve safe and efficient ejection of stuck steel ingots from the crystallizer through pressure control and stroke adjustment of the hydraulic cylinder. The placement assembly allows for the positioning and placement of crystallizers of different sizes, thus facilitating the removal of steel ingots from different crystallizers by operators.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical equipment technology, specifically to an auxiliary ingot removal device for crystallizers that are difficult to remove ingots. Background Technology

[0002] When electroslag remelting equipment smelts martensitic steel, after the molten steel solidifies in the continuous casting crystallizer, it forms austenite (γ-Fe, face-centered cubic structure) at high temperature (usually above the Ac3 critical temperature). At this time, carbon elements are uniformly dissolved in the intergranular spaces. Forced cooling is implemented through the crystallizer water cooling system, and the austenite transforms into martensite (α'-Fe, body-centered tetragonal structure) in a non-diffusion shear manner. This process inhibits the diffusion of carbon atoms and forms a carbon supersaturated solid solution. When water is circulated for rapid cooling in the crystallizer, the difference in cooling rate between the surface and the core causes thermal stress. The superimposed phase transformation stress may lead to micro-cracks or macro-deformation of the billet. After melting, the steel ingot is austenitic when the temperature is high in the crystallizer. As the ingot is gradually cooled, it forms martensitic steel, and its volume increases, making it difficult to remove from the ingot.

[0003] In the continuous casting process, after the molten steel solidifies in the crystallizer, the steel ingot is prone to sticking and jamming to the inner wall of the crystallizer due to uneven cooling, shrinkage stress, or slag formation on the inner wall of the crystallizer. At the same time, traditional manual knocking or tool ejection methods have many defects. Mechanical ejector rods can easily scratch the surface of the steel ingot or the inner wall of the crystallizer, and manual operation makes it difficult to accurately control the ejection angle and force, which can easily lead to the steel ingot tilting. In addition, it requires repeated adjustment of the ejection position, which affects the continuous production rhythm. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary ingot removal device to address the difficulties in ingot removal from crystallizers. This device solves the problems of relying on manual knocking for ingot removal, which has limited and uncontrollable force and is prone to failure or damage to the crystallizer. At the same time, mechanical ejection has limited output force due to mechanical structure and small adjustment range, making it difficult to meet the needs of steel ingots of different specifications.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for removing spindles from a crystallizer when it is difficult to remove the spindle, comprising a crystallizer placement box, and further comprising:

[0006] A hydraulic station is located on one side, a first PLC controller is located on the front surface of the hydraulic station, a hydraulic cylinder is fixedly connected to the front surface, and a weighing hopper is located inside.

[0007] An internal placement assembly includes a first limiting plate slidably connected to the interior, and second limiting plates fixedly connected to both sides of the inner wall of the crystallizer placement box. A drive motor is fixedly connected to the front surface of the crystallizer placement box, and a bidirectional lead screw is fixedly connected to the output end of the drive motor. Adjustment plates are slidably connected inside both the first and second limiting plates.

[0008] Preferably, a fixing rod is fixedly connected inside the crystallizer placement box, and the outer side of the fixing rod is slidably connected to the inside of the first limiting plate.

[0009] Preferably, the first limiting plate and the second limiting plate are both provided with positioning bolts, and the first limiting plate, the second limiting plate and the adjusting plate are all provided with positioning holes that cooperate with the positioning bolts.

[0010] Preferably, the bottom of the weighing hopper is fixedly connected to a base, and the bottom of the base is fixedly connected to the bottom of the inner cavity of the crystallizer placement box.

[0011] Preferably, a second PLC controller is provided on the top of the base, and a pressure sensor is provided inside the weighing hopper.

[0012] Preferably, a connecting pipe is connected to the outside of the hydraulic cylinder, and a valve is provided on the outside of the connecting pipe.

[0013] Preferably, a hose is connected to one side of the valve, and the end of the hose away from the valve is connected to one side of the hydraulic station, and the number of the connecting pipes is set to two.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention, by setting up a hydraulic station, hydraulic cylinders, and a crystallizer placement box, enables the hydraulic cylinders to operate normally during the ingot removal process inside the crystallizer. While the cylinders are running, the hydraulic system provides power through a high-pressure oil pump, with an output force reaching the ton level, easily handling the demolding needs of large ingots. Simultaneously, the pressure can be precisely adjusted, and the output force is controlled by hydraulic valves to adapt to different ingot sizes and removal resistances, avoiding overload or underload, greatly improving process efficiency and demonstrating significant effectiveness. Furthermore, the pressure control and stroke adjustment of the hydraulic cylinders enable the safe and efficient ejection of stuck ingots within the crystallizer. By setting up a placement component, when workers need to position and place crystallizers of different sizes, they can start the drive motor. Under the action of the drive motor, the bidirectional lead screw rotates, causing the two first limiting plates connected by bidirectional outer threads to move in opposite directions. Simultaneously, the outer side of the bidirectional lead screw is provided with equidistant external threads in opposite directions, allowing the two first limiting plates to move to the designated position. Then, through the cooperation of the second and first limiting plates, crystallizers of different sizes are positioned and placed. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the crystallizer spindle removal aid device for difficult spindle removal provided by this utility model;

[0017] Figure 2 A schematic diagram of the placement component structure provided by this utility model;

[0018] Figure 3 Another structural schematic diagram of the hydraulic station and crystallizer placement box provided by this utility model;

[0019] Figure 4 A schematic diagram of the connection structure of the hydraulic station and hydraulic cylinder provided by this utility model.

[0020] In the diagram: 1. Crystallizer placement box; 2. Hydraulic station; 3. First PLC controller; 4. Hydraulic cylinder; 5. Placement assembly; 6. Weighing hopper; 51. First limit plate; 52. Second limit plate; 53. Drive motor; 54. Bidirectional lead screw; 55. Adjusting plate; 7. Fixing rod; 8. Positioning bolt; 9. Positioning hole; 10. Base; 11. Pressure sensor; 12. Second PLC controller; 13. Connecting pipe; 14. Valve; 15. Hoses. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 As shown, an auxiliary ingot removal device for difficult ingot removal from a crystallizer includes a crystallizer placement box 1. By setting the crystallizer placement box 1, crystallizers of different sizes can be placed and positioned, thereby enabling the removal of ingots inside the crystallizer. The device also includes:

[0023] The hydraulic station 2, located on one side, allows for easy adjustment of the stroke of the hydraulic cylinder 4 by the operator. A first PLC controller 3, located on the front surface of the hydraulic station 2, controls the start and stop of the hydraulic pump. It also features an indicator light and a start button with a self-locking mechanism. The normally open contact of the start button connects the power supply to the hydraulic pump motor, starting the pump. The stop button disconnects the power supply for emergency shutdown. The indicator light illuminates during normal operation and goes out when the pump is stopped or malfunctioning. The hydraulic cylinder 4, fixedly connected to the front surface, allows for the removal of steel ingots from the crystallizer by pushing the ingots. An internal weighing hopper 6 monitors the weight change in real time during ingot removal. When the ingot is completely removed, the weight signal triggers the hydraulic cylinder 4 to stop.

[0024] The placement component 5, installed inside the crystallizer, can position and clamp crystallizers of different sizes, thereby performing ingot removal operations inside the crystallizer. The placement component 5 includes two first limiting plates 51 slidably connected inside. By setting two first limiting plates 51, their positions can be adjusted to position and clamp the crystallizer. Second limiting plates 52 are fixedly connected to both sides of the inner wall of the crystallizer placement box 1. By setting the second limiting plates 52, the crystallizer can be positioned and clamped according to actual needs. A first limiting plate 51 positions the crystallizer. A drive motor 53 is fixedly connected to the front surface of the crystallizer placement box 1. By setting the drive motor 53, the bidirectional lead screw 54 can be rotated under the action of the drive motor 53, thereby allowing the bidirectional lead screw 54 to operate normally and adjust the position of the two first limiting plates 51. The output end of the drive motor 53 is fixedly connected to the bidirectional lead screw 54. Adjusting plates 55 are slidably connected inside the first limiting plate 51 and the second limiting plate 52. By setting the adjusting plates 55, the usable length of the first limiting plate 51 and the second limiting plate 52 can be adjusted under the action of the adjusting plates 55, thereby positioning the crystallizer.

[0025] refer to Figure 1 , Figure 2 and Figure 3 As shown, a fixing rod 7 is fixedly connected inside the crystallizer placement box 1. By setting the fixing rod 7, when the positions of the two first limiting plates 51 are adjusted, the two first limiting plates 51 can slide on the outside of the fixing rod 7, thereby making the movement of the two first limiting plates 51 stable. The outside of the fixing rod 7 is slidably connected to the inside of the first limiting plate 51.

[0026] The first limiting plate 51 and the second limiting plate 52 are both equipped with positioning bolts 8. By setting the positioning bolts 8, the adjusted plate 55 can be positioned under the action of the positioning bolts 8, preventing the adjusted plate 55 from sliding randomly. The first limiting plate 51, the second limiting plate 52 and the adjusted plate 55 are all provided with positioning holes 9 that cooperate with the positioning bolts 8. By setting multiple positioning holes 9, it is convenient for the staff to adjust the positioning bolts 8 to multiple positions under the action of the positioning holes 9.

[0027] The bottom of the weighing hopper 6 is fixedly connected to a base 10. The bottom of the base 10 is fixedly connected to the bottom of the inner cavity of the crystallizer placement box 1. By setting the base 10, the weighing hopper 6 can be placed stably under the action of the base 10.

[0028] A second PLC controller 12 is installed on the top of the base 10. By installing the second PLC controller 12, the weighing hopper 6 can be controlled. A pressure sensor 11 is installed inside the weighing hopper 6. By installing the pressure sensor 11, the weight of the crystallizer can be monitored.

[0029] refer to Figure 2 and Figure 4 As shown, a connecting pipe 13 is connected to the outside of the hydraulic cylinder 4. By setting the connecting pipe 13, the oil inside the hydraulic station 2 can flow and enter the hydraulic cylinder 4 through the connecting pipe 13. A valve 14 is set on the outside of the connecting pipe 13. By setting the valve 14, the flow of oil can be controlled under the action of the valve 14.

[0030] A hose 15 is connected to one side of the valve 14. The end of the hose 15 away from the valve 14 is connected to one side of the hydraulic station 2. By setting the hose 15, the oil inside the hydraulic station 2 can enter the hydraulic cylinder 4 through the hose 15, thereby controlling the stroke of the hydraulic cylinder 4. The number of connecting pipes 13 is set to two.

[0031] Working Principle: When the operator uses this device to remove steel ingots from the crystallizer, the crystallizer is first placed inside the crystallizer placement box 1, allowing the piston rod of the hydraulic cylinder 4 to generate thrust on the steel ingot. Then, according to the size of the crystallizer, the operator starts the two drive motors 53. Under the action of the drive motors 53, the bidirectional lead screw 54 is rotated. When the bidirectional lead screw 54 rotates, it drives the two first limit plates 51 to move in opposite directions. After the four first limit plates 51 move to the designated position, the positioning bolt 8 is rotated, causing the positioning bolt 8 to disengage from the interior of the multiple limit plates. Then, the adjusting plate 55 is pulled, causing the adjusting plate 55 to move to the designated position. Then, the positioning bolt 8 is rotated again, causing the positioning bolt 8 to enter the interior of the adjusting plate 55 and each limit plate, thereby positioning the position of the adjusting plate 55, thus clamping and fixing the crystallizer. At the same time, the first PLC controller 3 controls the hydraulic fluid, thereby adjusting the stroke of the hydraulic cylinder 4, which can improve the efficiency of the steel ingot removal operation.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for assisting in the removal of ingots from a crystallizer when it is difficult to remove ingots, comprising a crystallizer placement box, characterized in that... It also includes: A hydraulic station is located on one side, a first PLC controller is located on the front surface of the hydraulic station, a hydraulic cylinder is fixedly connected to the front surface, and a weighing hopper is located inside. An internal placement assembly includes a first limiting plate slidably connected to the interior, and second limiting plates fixedly connected to both sides of the inner wall of the crystallizer placement box. A drive motor is fixedly connected to the front surface of the crystallizer placement box, and a bidirectional lead screw is fixedly connected to the output end of the drive motor. Adjustment plates are slidably connected inside both the first and second limiting plates.

2. The auxiliary spindle removal device for difficult spindle removal in a crystallizer according to claim 1, characterized in that: A fixing rod is fixedly connected inside the crystallizer placement box, and the outer side of the fixing rod is slidably connected to the inside of the first limiting plate.

3. The auxiliary spindle removal device for difficult spindle removal in a crystallizer according to claim 1, characterized in that: The first and second limiting plates are each provided with a positioning bolt inside, and the first and second limiting plates and the adjusting plate are each provided with a positioning hole for use with the positioning bolt.

4. The auxiliary spindle removal device for difficult spindle removal in a crystallizer according to claim 1, characterized in that: The bottom of the weighing hopper is fixedly connected to a base, and the bottom of the base is fixedly connected to the bottom of the inner cavity of the crystallizer placement box.

5. The auxiliary spindle removal device for difficult spindle removal in a crystallizer according to claim 4, characterized in that: A second PLC controller is installed on the top of the base, and a pressure sensor is installed inside the weighing hopper.

6. The auxiliary spindle removal device for difficult spindle removal in a crystallizer according to claim 1, characterized in that: The hydraulic cylinder is connected to a connecting pipe on its outer side, and a valve is installed on the outer side of the connecting pipe.

7. The auxiliary spindle removal device for difficult spindle removal in a crystallizer according to claim 6, characterized in that: A flexible hose is connected to one side of the valve, and the end of the hose away from the valve is connected to one side of the hydraulic station. The number of connecting pipes is set to two.

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