Stopper rod test simulation device and stopper rod test simulation method

Abstract

The invention discloses a stopper test simulation device and a stopper test simulation method, a simulation cavity of a simulation piece in the stopper test simulation device can simulate an inner cavity of a tundish, a lower nozzle communicated with the simulation cavity in the simulation piece can simulate a lower nozzle communicated with the inner cavity of the tundish, fluid flows into the simulation cavity from a water filling nozzle, and the viscosity is the viscosity of molten steel. The density is the density of the molten steel, so that the state of the fluid in the simulation cavity is closer to the state of the molten steel needing to be simulated, and the simulation trueness of the stopper test simulation device to the real environment where the stopper is located is improved. Under the condition that the fluid state is closer to the real molten steel state, an operator controls a stopper rod, inserted into a simulation cavity of the simulation piece, of a stopper rod mechanism connected with the simulation piece, the stopper rod is manually controlled to move, and the training effect of the stopper rod control capability of the operator is better; the technical problem that the training effect of operators is affected due to the fact that the simulation authenticity of the working environment of the stopper rod is not ideal enough is solved to a certain extent.

Description

Technical Field

[0001] This application belongs to the technical field of stopper test simulation, and particularly relates to a stopper test simulation device and a stopper test simulation method. Background Art

[0002] A stopper is a refractory rod installed in a ladle to control the opening and closing of a tundish nozzle and the molten steel flow rate by lifting and lowering displacement. During daily operations, the stopper is lifted and lowered through an automatic control module to control the opening and closing of the tundish nozzle. However, if the automatic control module fails, in an emergency, manual operation of the stopper is required to control the opening and closing of the tundish nozzle.

[0003] Currently, it is possible to simulate the working environment of the stopper, and then enable workers to exercise their ability to operate the stopper in the working environment of the stopper. However, there are differences between the simulated working environment of the stopper and the actual working environment of the stopper, which will also affect the actual operation ability of the operator. The simulation authenticity of the stopper working environment is not ideal enough, affecting the training effect on the operator. Summary of the Invention

[0004] This application aims to at least solve to some extent the technical problem that the simulation authenticity of the stopper working environment is not ideal enough, affecting the training effect on the operator. For this purpose, this application provides a stopper test simulation device and a stopper test simulation method.

[0005] An embodiment of this application provides a stopper test simulation device for simulating the control of molten steel flow in a tundish by a stopper. The stopper test simulation device includes:

[0006] A simulation part, provided with a simulation cavity, a tundish nozzle and a water injection port communicating with the simulation cavity. The shape of the simulation cavity is the same as the shape of the inner cavity of the tundish. The water injection port allows fluid to enter, and the tundish nozzle allows the fluid to flow out. The viscosity of the fluid is the same as the viscosity of the molten steel, and the density of the fluid is the same as the density of the molten steel;

[0007] A stopper mechanism, connected to the simulation part, and provided with a stopper inserted into the simulation cavity. The stopper is movable and used to open or close the tundish nozzle.

[0008] In some embodiments, the shape of the simulation part is the shape of the tundish.

[0009] In some embodiments, the stopper test simulation device further includes:

[0010] A container, spaced from the simulation part, and provided with a groove for receiving the fluid flowing out of the tundish nozzle;

[0011] A water pump, with an inlet communicating with the groove and an outlet communicating with the simulation cavity.

[0012] In some embodiments, the stopper testing simulation device further includes:

[0013] A liquid level gauge, connected to the simulation member and used to detect the liquid level of the fluid.

[0014] In some embodiments, the simulation member is a transparent simulation member. The cavity wall corresponding to the simulation cavity includes a top, a bottom, and a side. The top and the bottom are opposite to each other. The side connects the top and the bottom, and a scale line is provided on the side between the bottom and the top.

[0015] The present application also provides a stopper testing simulation method, which is implemented by using the stopper testing simulation device as described above. The stopper testing simulation method includes:

[0016] Inject the fluid into the simulation cavity through the water injection port. The viscosity of the fluid is the viscosity of molten steel, and the density of the fluid is the density of molten steel.

[0017] Move the stopper to open or close the lower water outlet.

[0018] In some embodiments, the fluid includes water, a solvent, and a solute.

[0019] In some embodiments, the solvent includes glycerol and an active agent, and the solute includes at least one of sodium chloride, ammonium sulfate, and soluble sugar.

[0020] In some embodiments, before injecting the fluid into the simulation cavity from the water injection port, the stopper testing simulation method further includes:

[0021] Form the fluid according to the density and viscosity of the molten steel. The density of the fluid is the density of the molten steel, and the viscosity of the fluid is the viscosity of the molten steel.

[0022] In some embodiments, after moving the stopper to open or close the lower water outlet, the stopper testing simulation method further includes:

[0023] Judge whether the change in the liquid level of the fluid is within a set range.

[0024] According to the beneficial effects provided by one or more embodiments of the present application:

[0025] In the stopper test simulation device, the simulation cavity of the simulation piece can simulate the inner cavity of the tundish. The sub-nozzle in the simulation piece that communicates with the simulation cavity can simulate the sub-nozzle that communicates with the inner cavity of the tundish. When the stopper needs to be operated, fluid can be made to flow into the simulation cavity from the water injection port. The fluid 7 can be contained in the simulation cavity. The viscosity of the fluid is the same as that of molten steel, and the density of the fluid is the same as that of molten steel, which can make the state of the fluid in the simulation cavity closer to the state of the molten steel to be simulated, so as to improve the simulation authenticity of the stopper test simulation device for the actual environment where the stopper is located. When the state of the fluid is closer to the state of real molten steel, the operator controls the stopper of the stopper mechanism connected to the simulation piece to insert into the simulation cavity of the simulation piece, and manually controls the movement of the stopper to open or close the sub-nozzle. When the sub-nozzle is opened, the fluid flows out from the sub-nozzle, simulating the control of molten steel flow, and the exercise effect on the operator's ability to control the stopper is better, which solves to a certain extent the technical problem that the simulation authenticity of the stopper working environment is not ideal and affects the exercise effect on the operator. Brief Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings below are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Fig. shows the structural schematic diagram of a stopper test simulation device in some embodiments or certain embodiments of the present application.

[0028] Figure 2 Fig. shows the axonometric drawing of a stopper test simulation device in some embodiments or certain embodiments of the present application.

[0029] Figure 3 Fig. shows the flowchart of a stopper test simulation method in some embodiments or certain embodiments of the present application.

[0030] Figure 4 Fig. shows the flowchart of another stopper test simulation method in some embodiments or certain embodiments of the present application.

[0031] Description of the reference numerals: 1. Simulation piece; 11. Simulation cavity; 12. Sub-nozzle; 13. Water injection port; 2. Stopper mechanism; 21. Stopper; 3. Bracket; 4. Container; 41. Groove; 5. Water pump; 6. Liquid level gauge; 7. Fluid; 8. Control box. Detailed Description of the Embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indication will also change accordingly.

[0034] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0036] Next, the present application will be described in conjunction with the accompanying drawings:

[0037] Figure 1 shows a schematic structural diagram of a stopper test simulation device in some embodiments or certain embodiments of the present application, Figure 2 shows an isometric view of a stopper test simulation device in some embodiments or certain embodiments of the present application. Referring to Figure 1 、 2 , the embodiments of the present application provide a stopper test simulation device for simulating the control of molten steel flow in a tundish by a stopper. The stopper test simulation device includes:

[0038] The simulation piece 1 is provided with a simulation cavity 11, a water outlet 12 and a water injection port 13 communicating with the simulation cavity 11. The shape of the simulation cavity 11 is the same as the shape of the inner cavity of the tundish. The water injection port 13 allows the fluid 7 to enter, and the water outlet 12 allows the fluid to flow out. The viscosity of the fluid 7 is the same as the viscosity of molten steel, and the density of the fluid 7 is the same as the density of molten steel.

[0039] The stopper rod mechanism 2 is connected to the simulation piece 1 and is provided with a stopper rod 21 inserted into the simulation cavity 11. The stopper rod 21 is movable and used to open or close the water outlet 12.

[0040] In the stopper rod test simulation device, the simulation cavity 11 of the simulation piece 1 can simulate the inner cavity of the tundish, and the water outlet 12 communicating with the simulation cavity 11 in the simulation piece 1 can simulate the water outlet 12 communicating with the inner cavity of the tundish. When the stopper rod 21 needs to be operated, the fluid 7 can be made to flow into the simulation cavity 11 from the water injection port 13. The fluid can be contained in the simulation cavity 11. The viscosity of the fluid 7 is the same as the viscosity of molten steel, and the density of the fluid 7 is the same as the density of molten steel. This can make the state of the fluid 7 in the simulation cavity 11 closer to the state of the molten steel to be simulated, so as to improve the simulation authenticity of the stopper rod test simulation device for the actual environment where the stopper rod 21 is located. When the state of the fluid 7 is closer to the state of real molten steel, the operator controls the stopper rod 21 of the stopper rod mechanism 2 connected to the simulation piece 1 inserted into the simulation cavity 11 of the simulation piece 1, and manually controls the movement of the stopper rod 21 to open or close the water outlet 12. When the water outlet 12 is opened, the fluid 7 flows out from the water outlet 12, simulating the control of the molten steel flow. This also has a better exercise effect on the operator's ability to control the stopper rod 21, and to a certain extent solves the technical problem that the simulation authenticity of the working environment of the stopper rod 21 is not ideal enough, affecting the exercise effect on the operator.

[0041] It should be noted that when the operator moves the stopper rod 21 to open or close the water outlet 12 of the simulation piece 1, it is to simulate the opening and closing of the water outlet 12 of the tundish by the stopper rod 21. When the stopper rod 21 opens the water outlet 12 of the simulation piece 1, the fluid 7 flows out from the water outlet 12, which is to simulate the state where the stopper rod 21 moves to open the water outlet 12 of the tundish and the molten steel flows out from the water outlet 12 of the tundish. By opening or closing the water outlet 12 of the tundish with the stopper rod 21, that is, realizing the control of the molten steel flow in the tundish by the stopper rod 21. Therefore, in the stopper rod test simulation device, by moving the stopper rod 21 in the stopper rod mechanism 2 to open or close the water outlet 12, the control of the fluid 7 is realized, that is, simulating the control of the molten steel flow in the tundish by the stopper rod 21. The higher the degree of simulation of the actual working environment of the stopper rod 21 by the stopper rod test simulation device, the better the exercise effect on the operator's ability to operate the stopper rod 21 in the stopper rod test simulation device, and the better the control effect of the molten steel when the operator actually operates the stopper rod 21 in the tundish. The water outlet 12 is a pipe with one end inserted into the simulation piece 1 and one end communicating with the simulation cavity 11 of the simulation piece 1.

[0042] In some embodiments, the shape of the simulation piece 1 is the shape of a tundish. Figure 2 The fluid 7 is not shown in the figure.

[0043] The shape of the simulation piece 1 being the shape of a tundish can also improve the simulation authenticity of the working environment of the stopper rod 21. When the stopper rod 21 moves in the simulation piece 1, its state will be closer to the state when the stopper rod 21 works in the actual tundish, which is beneficial to improving the training effect of the operator's ability to control the stopper rod 21.

[0044] It should be noted that the shape of the simulation piece 1 being the shape of a tundish means that the shape of the simulation cavity 11 of the simulation piece 1 is the same as the shape of the inner cavity of the tundish, and the contour shape of the simulation piece 1 is the same as the contour shape of the tundish. When the shape of the simulation piece 1 is the shape of a tundish, the stopper rod test simulation can be carried out while being supported on a device or structure with a certain height. When the shape of the simulation piece 1 is the shape of a tundish, the simulation piece 1 may also be provided with a pouring nozzle (not shown in the figure), and the pouring nozzle may also be a pipe.

[0045] In some embodiments, the contour shape of the simulation piece 1 may also be different from the contour shape of the tundish. The position where the lower outlet 12 of the simulation piece 1 is set relative to the simulation cavity 11 may be the same as the position where the lower outlet 12 of the tundish is set relative to the inner cavity. This can also improve the simulation authenticity of the working environment of the stopper rod 21.

[0046] In some embodiments, the simulation piece 1 may also be an integral structure, which may include an integral main body and a frame. The main body may be provided with a simulation cavity 11 and a lower outlet 12, and the main body may be supported on the ground through the frame. It can achieve the accommodation and stable support of the fluid 7. The simulation piece 1 may also be provided with a water injection port 13 with controllable on-off, and the water injection port 13 is communicated with the simulation cavity 11. The fluid 7 can be injected into the simulation cavity 11 from the water injection port 13.

[0047] In some embodiments, the stopper rod test simulation device may further include a bracket 3, and the simulation piece 1 may be supported or connected to the bracket 3. The bracket 3 can provide support for the simulation piece 1 and can also play a role in changing the height of the simulation piece 1, facilitating the operator to operate the stopper rod 21.

[0048] It should be noted that the height of the bracket 3 may also be correspondingly set to the height of the tundish in the working environment of the stopper rod 21. This can effectively improve the simulation authenticity of the working environment of the stopper rod 21.

[0049] In some embodiments, the stopper rod test simulation device further includes:

[0050] A container 4, spaced from the simulation piece 1 and provided with a groove 41 for receiving the fluid 7 flowing out of the lower outlet 12;

[0051] The water pump 5 has an inlet connected to the groove 41 and an outlet connected to the simulation cavity 11.

[0052] The container 4 in the stopper test simulation device can receive the fluid 7 flowing out of the water outlet 12. On the one hand, the fluid 7 is recycled. On the other hand, the container 4 can also simulate the mold, so that when the stopper test simulation device conducts the stopper test simulation, the environmental state where the stopper 21 is located is closer to the actual working environment of the stopper 21, which is beneficial to improving the training effect of the operator's ability to control the stopper 21. A water pump 5 is also provided in the stopper test simulation device. The water pump 5 can extract the fluid 7 contained in the container 4 and re-transport it to the simulation cavity 11 of the simulation part 1. The fluid 7 can be recycled, reducing the cost of conducting the stopper test simulation, and is also relatively energy-saving and environmentally friendly.

[0053] In some embodiments, the container 4 can be a water tank or a structure with the same shape as the mold, and the water outlet 12 can be connected to the water tank or the mold. The fluid 7 enters the container 4 from the water outlet 12, which can simulate the process of molten steel entering the mold from the water outlet 12.

[0054] In some embodiments, the inlet of the water pump 5 can be connected to the groove 41 of the container 4 through a pipeline, and the outlet of the water pump 5 can be connected to the simulation cavity 11 of the simulation part 1 through a pipeline. The water pump 5 can be integrally installed on the container 4.

[0055] In some embodiments, the stopper test simulation device can also include a control box 8. The control box 8 can be electrically connected to the water pump 5 and is used to control the start and stop of the water pump 5, improving the degree of automation.

[0056] In some embodiments, the stopper test simulation device can further include:

[0057] A liquid level gauge 6, connected to the simulation part 1 and used to detect the liquid level of the fluid 7.

[0058] The liquid level gauge 6 can detect the liquid level of the fluid 7, facilitating the judgment of the liquid level of the fluid 7 in the simulation cavity 11 of the simulation part 1. In the case where the liquid level gauge 6 is provided, the liquid level of the fluid 7 in the simulation cavity 11 of the simulation part 1 can also be made close to the liquid level of the molten steel in the inner cavity of the tundish when the tundish is working, which is also beneficial to improving the simulation authenticity of the working environment of the stopper 21.

[0059] In some embodiments, the simulation part 1 is a transparent simulation part. The cavity wall corresponding to the simulation cavity 11 includes a top, a bottom and a side. The top and the bottom are opposite to each other. The side connects the top and the bottom, and a scale line (not shown in the figure) is provided on the side between the bottom and the top.

[0060] The simulation piece 1 is a transparent simulation piece, and the scale lines can also indicate the height of the molten steel level in the simulation cavity 11. Also, according to the scale lines, it is possible to visually judge the change in the molten steel level after the operator operates the stopper rod 21. To a certain extent, the change in the molten steel level can be used to judge whether the operator's ability to operate the stopper rod 21 is appropriate.

[0061] It should be noted that when actually moving the stopper rod 21 to control the flow of molten steel, the change in the molten steel level in the tundish is also within a certain range. Therefore, through the change in the molten steel level, it is also convenient to judge whether the operator's ability to operate the stopper rod 21 is qualified. The cavity walls corresponding to the simulation cavity 11 in the drawings are not marked, including the top, bottom, and side parts. However, the simulation cavity 11 in the drawings can be a quasi-rectangular cuboid cavity. Among the cavity walls corresponding to the cuboid cavity, two opposite cavity walls are respectively the top and the bottom, and the part between the top and the bottom can be the side part.

[0062] In some or certain embodiments, the stopper rod mechanism 2 can be a stopper rod mechanism 2 commonly used in continuous casting metallurgical production for controlling the opening and closing of the submerged nozzle 12. The stopper rod 21 in the stopper rod mechanism 2 is inserted into the simulation piece 1 and into the simulation cavity 11. The stopper rod mechanism 2 itself can be equipped with a manual operating rod, and the manual operating rod can manually control the movement of the stopper rod 21. The stopper rod mechanism 2 can also be, for example, an LSZ-S2 type tundish stopper rod mechanism or a McGree stopper rod actuator, both of which can achieve automatic and manual control of the stopper rod 21.

[0063] Based on the same inventive concept, the present application also provides a stopper rod test simulation method. Figure 3 The flowchart of a stopper rod test simulation method in some embodiments or certain embodiments of the present application is shown. The stopper rod test simulation method can be implemented by using the stopper rod test simulation device as described above. The simulation piece is provided with a water injection port communicating with the simulation cavity. The stopper rod test simulation method includes:

[0064] S101: Inject a fluid into the simulation cavity through the water injection port. The viscosity of the fluid is the viscosity of molten steel, and the density of the fluid is the density of molten steel.

[0065] S102: Move the stopper rod to open or close the submerged nozzle.

[0066] The structure of the stopper rod test simulation device and its corresponding technical effects can be referred to as described above and will not be elaborated here. The viscosity of the fluid injected into the simulation cavity is the viscosity of molten steel, and the density of the fluid is the density of molten steel, which is closer to the real state of molten steel in the inner cavity of the tundish. It can improve the simulation authenticity of the working environment of the stopper rod. When the operator then controls the stopper rod to move in the fluid to open or close the submerged nozzle, it is possible to control the stopper rod in a state closer to the working environment of the stopper rod, which is beneficial to improving the effect of the operator's actual control ability of the stopper rod.

[0067] It should be noted that after the fluid is injected into the simulation cavity through the water injection port, the stopper rod located in the simulation cavity can be in a state of blocking or opening the water outlet. Therefore, the operator or the stopper rod mechanism can move the stopper rod to open or close the water outlet. The operator can also control the movement of the stopper rod to exercise the ability to operate the stopper rod.

[0068] In some embodiments, the density of the fluid is the density of molten steel, and the density of the fluid can be within the range of the density of the simulated molten steel; the viscosity of the fluid is the viscosity of molten steel, and the viscosity of the fluid can be within the range of the viscosity of the simulated molten steel.

[0069] It should be noted that for the same steel grade, the viscosity and density of the molten steel corresponding to the steel grade can fluctuate within a certain range. Depending on the different steel grades, the viscosity and density of the molten steel will also change, and the viscosity and density of the fluid can be changed according to the different steel grades.

[0070] In some embodiments, the upper water inlet of the simulation part can also be configured as a water injection port. The injection of fluid into the simulation cavity can be realized.

[0071] Figure 4 The flowchart of another stopper rod test simulation method in some embodiments or certain embodiments of the present application is shown. Refer to Figure 4 , the stopper rod test simulation method may also include:

[0072] S200: Form a fluid according to the density and viscosity of molten steel, where the density of the fluid is the density of molten steel and the viscosity of the fluid is the viscosity of molten steel.

[0073] Before injecting the fluid into the simulation cavity, a fluid can be formed according to the density and viscosity of molten steel, which is convenient for subsequent stopper rod test simulation. The injection of the fluid into the simulation cavity can be realized by pumping equipment such as a pump to extract the fluid and transport it to the simulation cavity. The pump can also be a water pump, and the corresponding fluid can be prepared in the groove of the container.

[0074] In some embodiments, the fluid can be formed by stirring a variety of liquids, or stirring water, solvents and solutes. It is convenient for preparation and forming.

[0075] In some embodiments, the fluid may include water, solvents and solutes. A fluid with a certain viscosity and density can be formed to simulate molten steel with a corresponding density or viscosity.

[0076] In some embodiments, the solvent may include glycerol and active agents, and the solute includes at least one of sodium chloride, ammonium sulfate and soluble sugar. It has low cost and is convenient for preparation, and can also effectively change the range of the density and viscosity of the fluid. The fluid can be prepared and formed in the groove of the container. The soluble sugar is monosaccharides and disaccharides that are soluble in water.

[0077] S201: Inject fluid into the simulation cavity through the water injection port. The viscosity of the fluid is the same as that of molten steel, and the density of the fluid is the same as that of molten steel.

[0078] S202: Move the stopper rod to open or close the tundish nozzle.

[0079] S203: Determine whether the change in the liquid level of the fluid is within the set range.

[0080] Determining whether the change in the liquid level of the fluid is within the set range can determine whether the operator's ability to operate the stopper rod is qualified. The change in the liquid level of the fluid can be judged by the scale line.

[0081] It should be noted that the set range can be the range interval corresponding to the change in the liquid level of molten steel after each flow control of the stopper rod in the tundish.

[0082] S204: If the inlet of the water pump of the stopper rod test simulation device is connected to the groove, and the outlet of the water pump is connected to the simulation cavity. The fluid in the simulation cavity can all enter the groove. After increasing the viscosity and density of the fluid in the groove, the fluid can be pumped back into the simulation cavity by the water pump to simulate molten steel with different viscosities or densities, and simulate the working environment of the stopper rod in another molten steel environment.

[0083] It is possible to exercise the operator's ability to control the stopper rod under the condition of simulating different molten steel environments, and it is relatively energy-saving and environmentally friendly.

[0084] It should be noted that Figure 4 the stopper rod test simulation method shown in Figure 3 adds steps S200, S203 and S204 compared with the stopper rod test simulation method shown in

[0085] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0086] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0087] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A stopper test simulation device, characterized in that, For simulating the control of molten steel flow in a tundish by a stopper rod, the stopper rod test simulation device includes: A simulation piece, provided with a simulation cavity, a lower water outlet and a water injection port communicating with the simulation cavity. The shape of the simulation cavity is the same as the shape of the inner cavity of the tundish. The water injection port allows fluid to enter, and the lower water outlet allows the fluid to flow out. The viscosity of the fluid is the same as the viscosity of the molten steel, and the density of the fluid is the same as the density of the molten steel; A stopper rod mechanism, connected to the simulation piece and provided with a stopper rod inserted into the simulation cavity. The stopper rod is movable and used to open or close the lower water outlet.

2. The stopper testing simulation device according to claim 1, wherein, The shape of the simulation piece is the shape of the tundish.

3. The stopper testing simulation device according to claim 1, characterized in that The stopper rod test simulation device further includes: A container, spaced from the simulation piece and provided with a groove for receiving the fluid flowing out of the lower water outlet; A water pump, with an inlet communicating with the groove and an outlet communicating with the simulation cavity.

4. The stopper testing simulation device according to any one of claims 1 to 3, characterized in that, The stopper rod test simulation device further includes: A liquid level gauge, connected to the simulation piece and used to detect the liquid level of the fluid.

5. The stopper testing simulation device according to any one of claims 1 to 3, characterized in that, The simulation piece is a transparent simulation piece. The cavity wall corresponding to the simulation cavity includes a top, a bottom and a side. The top and the bottom are opposite to each other. The side connects the top and the bottom, and the side is provided with scale lines between the bottom and the top.

6. A stopper testing simulation method, characterized in that, Implemented by using the stopper rod test simulation device according to any one of claims 1 to 5, the stopper rod test simulation method includes: Injecting the fluid into the simulation cavity through the water injection port. The viscosity of the fluid is the same as the viscosity of the molten steel, and the density of the fluid is the same as the density of the molten steel; Moving the stopper rod to open or close the lower water outlet.

7. The stopper rod test simulation method according to claim 6, wherein, The fluid includes water, a solvent and a solute.

8. The stopper rod test simulation method according to claim 7, characterized in that, The solvent includes glycerol and an active agent, and the solute includes at least one of sodium chloride, ammonium sulfate and soluble sugar.

9. The stopper rod test simulation method according to any one of claims 6 to 8, characterized in that Before injecting the fluid into the simulation cavity from the water injection port, the stopper rod test simulation method further includes: Forming the fluid according to the density and viscosity of the molten steel. The density of the fluid is the same as the density of the molten steel, and the viscosity of the fluid is the same as the viscosity of the molten steel.

10. The stopper testing simulation method according to any one of claims 6 to 8, characterized in that, After moving the stopper rod to open or close the lower water outlet, the stopper rod test simulation method further includes: Judging whether the change in the liquid level of the fluid is within a set range.

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