Refining agent adding equipment

Abstract

The utility model belongs to the technical field of metal continuous casting, and provides refiner adding equipment. The refiner adding equipment comprises a feeding device and a heating device, the feeding device is used for feeding a rod-shaped refiner into the heating device, and the heating device is used for melting the rod-shaped refiner into a liquid refiner. According to the refiner adding equipment provided by the invention, the uniformity of the refiner in the metal melt can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of metal continuous casting, and in particular to a refiner adding device. Background Art

[0002] In the process of continuous casting of metal, it is usually necessary to add refiners to the metal melt.

[0003] Refining agent uses the principle of non-uniform nucleation of external particles to add a certain metal or its compound to the metal melt to refine the grains in the ingot or casting. The refiner is usually rod-shaped, and the rod-shaped refiner is added to the flow channel through the feeding device. There is flowing metal melt in the flow channel. The rod-shaped refiner melts with the help of the temperature of the metal melt, and then diffuses with the flow of the metal melt.

[0004] However, the refiners are melted by the molten metal, and the uniformity of diffusion of the refiners in the molten metal is poor. Utility Model Content

[0005] The present application provides a refiner adding device, which can improve the uniformity of the refiner in a metal melt.

[0006] The present application provides a refiner adding device, comprising: a feeding device and a heating device, wherein the feeding device is used to feed a rod-shaped refiner into the heating device, and the heating device is used to melt the rod-shaped refiner into a liquid refiner.

[0007] In a possible embodiment, the refiner adding device provided by the present application, the heating device includes a refractory container and a heating sleeve, the heating sleeve is arranged on the outside of the refractory container, the refractory container includes a first end and a second end relative to each other, the first end faces the feeding device, and the second end faces away from the feeding device, the first end is used to receive the rod-shaped refiner, and the second end is used to output the liquid refiner.

[0008] In a possible embodiment, the refiner adding device provided in the present application, the heating sleeve includes a plurality of induction coils, and the heating device also includes a power supply, the power supply is electrically connected to the induction coils, and the power supply is used to supply power to the induction coils to heat the induction coils.

[0009] In a possible embodiment, the refiner adding device provided in the present application, the refractory container includes a first heating section and a second heating section connected to the first heating section, the first heating section faces the first end, the second heating section faces the second end, and the induction coil is sleeved on the first heating section; the diameter of the first heating section is larger than the diameter of the second heating section, and the diameter of the first heating section is larger than the diameter of the rod-shaped refiner.

[0010] In a possible implementation, in the refiner adding device provided in the present application, the diameter of the first heating section is 1.5 to 3.0 times the diameter of the rod-shaped refiner.

[0011] In a possible embodiment, the refiner adding device provided in the present application, the refractory container also includes a connecting section, the connecting section is located between the first heating section and the second heating section, and the diameter of the connecting section gradually decreases from the first heating section side to the second heating section side.

[0012] In a possible implementation, in the refiner adding device provided by the present application, the refractory container is one of a graphite sleeve, a silicon oxide sleeve or a zirconium oxide sleeve.

[0013] In a possible embodiment, the refiner adding device provided in the present application, the feeding device includes a support frame and a drive motor, the support frame is used to support the drive motor so that the drive motor is located above the heating device, the rotating shaft of the drive motor is connected to the mounting hole of the plate, wherein the rod-shaped refiner plate is arranged on the plate.

[0014] In a possible implementation, the refiner adding device provided in the present application has a drive motor provided with a preset speed, and the preset speed is adjustable.

[0015] The refiner adding device provided by the present application is provided with a feeding device and a heating device. The feeding device is used to feed the rod-shaped refiner into the heating device, and the heating device is used to melt the rod-shaped refiner into a liquid refiner. Since the refiner is already a liquid refiner when entering the metal melt, no additional time is required for melting, so that the refiner can be diffused more evenly in the metal melt. In addition, by providing a heating device, when the rod-shaped refiner is melted into a liquid refiner, it absorbs the heat of the heating device without absorbing the temperature of the metal melt, so that the temperature of each area of ​​the metal melt tends to be consistent, so that the refiner diffuses more evenly in the metal melt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the structure of a refiner adding device provided in an embodiment of the present application;

[0018] Figure 2 The use status of the refiner adding device provided in the embodiment of the present application Figure 1 ;

[0019] Figure 3 A schematic diagram of the structure of a refractory container in a refiner adding device provided in an embodiment of the present application;

[0020] Figure 4 A diagram showing the use status of a refractory container in a refiner adding device provided in an embodiment of the present application;

[0021] Figure 5 The use status of the refiner adding device provided in the embodiment of the present application Figure 2 ;

[0022] Figure 6 It is a schematic diagram of the structure of the plate.

[0023] Description of reference numerals:

[0024] 10-Rod thinning agent;

[0025] 20-liquid refiner;

[0026] 30-flow trough;

[0027] 31-Bottom wall;

[0028] 40- tray;

[0029] 41-through hole;

[0030] 100-Refining agent adding equipment;

[0031] 110-feeding device;

[0032] 111-support frame; 1111-mounting hole;

[0033] 112-driving motor; 1121-rotating shaft;

[0034] 120- heating device;

[0035] 121-refractory container; 121a-first end; 121b-second end; 1211-first heating section; 1212-second heating section; 1213-connecting section;

[0036] 122-heating jacket; 1221-induction coil;

[0037] 123-power supply;

[0038] 130-clamping member;

[0039] 131-gripper;

[0040] H - height direction. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] The terms "first", "second", "third" (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0045] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or service tool that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or service tool.

[0046] In the process of continuous casting of metal, it is usually necessary to add refiners to the metal melt.

[0047] Refining agent uses the principle of non-uniform nucleation of external particles to add a certain metal or its compound to the metal melt to refine the grains in the ingot or casting. The refiner is usually rod-shaped, and the rod-shaped refiner is added to the flow trough through a feeding device. The flow trough has flowing metal melt. The rod-shaped refiner melts with the help of the temperature of the metal melt, and then diffuses with the flow of the metal melt.

[0048] However, the rod-shaped refiner needs to be melted in the metal melt first and then diffused. It is difficult for the refiner to diffuse evenly in the metal melt, resulting in large differences in the prepared metal composition and unstable product performance. In addition, when the feeding speed of the rod-shaped refiner is too fast, the end of the rod-shaped refiner will not have time to melt and there is a risk of hitting the bottom wall of the flow channel. After the rod-shaped refiner hits the bottom wall of the flow channel, the rod-shaped refiner exerts a reaction force on the feeding device. The feeding device is usually set high, so the reaction force will reduce the stability of the feeding device.

[0049] Based on this, the present application provides a refiner adding device, which can improve the uniformity of the refiner in the metal melt.

[0050] Figure 1 A schematic diagram of the structure of a refiner adding device provided in an embodiment of the present application; Figure 2 The use status of the refiner adding device provided in the embodiment of the present application Figure 1 .

[0051] See also Figure 1 and Figure 2 As shown, the refiner adding device 100 provided in the embodiment of the present application includes: a feeding device 110 and a heating device 120 , the feeding device 110 is used to feed the rod-shaped refiner 10 into the heating device 120 , and the heating device 120 is used to melt the rod-shaped refiner 10 into a liquid refiner 20 .

[0052] The flow channel 30 has molten metal therein, and the bottom wall 31 of the flow channel 30 is inclined so that the molten metal can flow in the flow channel 30 along the inclined direction thereof.

[0053] The feeding device 110 and the heating device 120 are both located above the flow channel 30. Figure 1 and Figure 2 In the illustrated embodiment, the feeding device 110 is disposed above the heating device 120 along the height direction H, and the feeding device 110 and the heating device 120 are substantially aligned along the height direction H.

[0054] When it is necessary to add refiners to the metal melt in the flow channel 30, the feeding device 110 clamps the rod-shaped refiners 10 and feeds the rod-shaped refiners 10 into the heating device 120; as the rod-shaped refiners 10 continue to move in the heating device 120, the heating device 120 heats the rod-shaped refiners 10, and at one end of the heating device 120 facing the flow channel 30, the rod-shaped refiners 10 melt into liquid refiners 20, and the liquid refiners 20 drip into the metal melt in the flow channel 30, and are evenly diffused in the metal melt as the metal melt flows. Since the refiners are already liquid refiners 20 when entering the metal melt, no additional time is required for melting, so that the refiners can be diffused more evenly in the metal melt.

[0055] By providing the heating device 120, when the rod-shaped refiner 10 melts into the liquid refiner 20, it absorbs the heat of the heating device 120 instead of the temperature of the molten metal, so that the temperature of each area of ​​the molten metal tends to be consistent, thereby making the refiner diffuse more evenly in the molten metal.

[0056] In addition, the problem caused by the rod-shaped thinning agent 10 and the bottom wall 31 of the flow channel 30 in the prior art can also be solved.

[0057] The refiner adding device 100 provided in the embodiment of the present application is provided with a feeding device 110 and a heating device 120. The feeding device 110 is used to feed the rod-shaped refiner 10 into the heating device 120, and the heating device 120 is used to melt the rod-shaped refiner 10 into a liquid refiner 20. Since the refiner is already a liquid refiner 20 when entering the metal melt, no additional time is required for melting, so that the refiner can be diffused more evenly in the metal melt. In addition, by providing the heating device 120, when the rod-shaped refiner 10 is melted into the liquid refiner 20, it absorbs the heat of the heating device 120 without absorbing the temperature of the metal melt, so that the temperature of each area of ​​the metal melt tends to be consistent, so that the refiner diffuses more evenly in the metal melt.

[0058] Next, the specific structure of the heating device 120 will be described.

[0059] Please continue to see Figure 1 and Figure 2 As shown, the heating device 120 includes a refractory container 121 and a heating sleeve 122. The heating sleeve 122 is sleeved on the outside of the refractory container 121. The refractory container 121 includes a first end 121a and a second end 121b relative to each other. The first end 121a faces the feeding device 110, and the second end 121b faces away from the feeding device 110. The first end 121a is used to receive the rod-shaped refining agent 10, and the second end 121b is used to output the liquid refining agent 20.

[0060] Specifically, the refractory container 121 may be sleeve-shaped, and the refractory container 121 extends along the height direction H, so that the refractory container 121 includes a first end 121 a facing the feeding device 110 and a second end 121 b facing the flow channel 30 .

[0061] The feeding device 110 feeds the rod-shaped refiner 10 into the refractory container 121 from the first end 121a. The heating sleeve 122 is sleeved on the outside of the refractory container 121. The heating sleeve 122 is used to generate heat. As the rod-shaped refiner 10 moves in the refractory container 121 along the height direction H, the heat generated by the heating sleeve 122 can melt the rod-shaped refiner 10 into liquid refiner 20. The liquid refiner 20 flows out from the second end 121b.

[0062] The refiner can be contained in the refractory container 121 to avoid direct contact between the heating jacket 122 and the refiner. By arranging the heating jacket 122 outside the refractory container 121, the rod-shaped refiner 10 can be heated evenly.

[0063] Please continue to see Figure 1 and Figure 2 As shown, the heating sleeve 122 includes a plurality of induction coils 1221 , and the heating device 120 also includes a power supply 123 , which is electrically connected to the induction coils 1221 , and is used to supply power to the induction coils 1221 so that the induction coils 1221 generate heat.

[0064] The metal wire is wound around the outside of the heating sleeve 122 in turns to form a plurality of induction coils 1221, and both ends of the metal wire are electrically connected to the power supply 123. When the rod-shaped thinning agent 10 needs to be heated, the power supply 123 is turned on, so that the induction coil 1221 generates heat, thereby heating the rod-shaped thinning agent 10 located in the refractory container 121. It should be noted that a gap needs to be left between the induction coil 1221 and the outer wall of the refractory container 121.

[0065] When the diameter or material of the rod-shaped refiner 10 is different, the heat required for melting is also different. For example, when the diameter of the rod-shaped refiner 10 is small, the heat required for melting is small, and when the diameter of the rod-shaped refiner 10 is large, the heat required for melting is also large. When the material of the rod-shaped refiner 10 is aluminum-titanium alloy, the melting point is low, and the heat required for melting is also small. When the material of the rod-shaped refiner 10 is steel, the heat required for melting is also large.

[0066] In this embodiment, the heating amount of the heating sleeve 122 can be changed by changing the number of turns of the induction coil 1221 and the power of the power supply 123. Thus, it can be flexibly adjusted according to the heat required for actual use, avoiding the difficulty of melting due to low heat or energy waste caused by high heat.

[0067] Next, the specific structure of the refractory container 121 will be described.

[0068] Figure 3 A schematic diagram of the structure of a refractory container in a refiner adding device provided in an embodiment of the present application; Figure 4 This is a usage status diagram of the refractory container in the refiner adding equipment provided in an embodiment of the present application.

[0069] See also Figure 3 and Figure 4 As shown, the refractory container 121 includes a first heating section 1211 and a second heating section 1212 connected to the first heating section 1211, the first heating section 1211 faces the first end 121a, the second heating section 1212 faces the second end 121b, and the induction coil 1221 is sleeved on the first heating section 1211; the diameter of the first heating section 1211 is larger than the diameter of the second heating section 1212, and the diameter of the first heating section 1211 is larger than the diameter of the rod-shaped refiner 10.

[0070] That is, the first heating section 1211 faces the feeding device 110 , and the second heating section 1212 faces the flow channel 30 . The diameter of the first heating section 1211 is larger than the diameter of the rod-shaped thinning agent 10 , so that the rod-shaped thinning agent 10 can enter the refractory container 121 easily.

[0071] The induction coil 1221 is sleeved in the first heating section 1211 to heat the rod-shaped thinning agent 10. That is, when the thinning agent enters the second heating section 1212 from the first heating section 1211, the thinning agent has changed from a rod-shaped state to a liquid state.

[0072] The second heating section 1212 is connected to the first heating section 1211, so that the temperature of the second heating section 1212 is close to that of the first heating section 1211. The refiner 20 is kept in liquid state by the temperature of the second heating section 1212 and then flows out of the second heating section 1212. The diameter of the second heating section 1212 is smaller than that of the first heating section 1211, so that the flow rate of the liquid refiner 20 can be controlled by reducing the diameter.

[0073] It should be noted that the refractory container 121 can be fixed by a clamp 130. For details, please continue to refer to Figure 2 As shown, one end of the clamping member 130 is installed on the ground, and the other end is provided with a clamping claw 131 , which can be clamped on the second heating section 1212 .

[0074] In a possible implementation manner, the diameter of the first heating section 1211 is 1.5 to 3.0 times the diameter of the rod-shaped thinning agent 10 .

[0075] When the diameter of the first heating section 1211 is too large, the space in the first heating section 1211 is large, and a large amount of heat is wasted in heating the air. When the diameter of the first heating section 1211 is too small, it is not convenient for the rod-shaped thinning agent 10 to enter the first heating section 1211. Therefore, the diameter of the first heating section 1211 is 1.5 times to 3.0 times the diameter of the rod-shaped thinning agent 10.

[0076] Please continue to see Figure 3 and Figure 4 As shown, the refractory container 121 further includes a connecting section 1213, which is located between the first heating section 1211 and the second heating section 1212, and the diameter of the connecting section 1213 gradually decreases from the first heating section 1211 side to the second heating section 1212 side.

[0077] That is to say, the connecting section 1213 is funnel-shaped, the large end of the connecting section 1213 is connected to the first heating section 1211, and the small end of the connecting section 1213 is connected to the second heating section 1212, so that the first heating section 1211 and the second heating section 1212 have a smooth transition, avoiding the formation of a step between the first heating section 1211 and the second heating section 1212 to cause accumulation of the liquid refiner 20.

[0078] In a possible implementation, the refractory container 121 is a graphite sleeve. The refractory container 121 can be made of graphite, which has a high temperature resistance. Therefore, when the refiner is steel, a graphite sleeve can be used.

[0079] The refractory container 121 is a silicon oxide sleeve or a zirconium oxide sleeve. The refractory container 121 can also be made of silicon oxide or zirconium oxide, and the temperature resistance of silicon oxide or zirconium oxide is lower than that of graphite. When the refiner is an aluminum-titanium alloy, a silicon oxide sleeve or a zirconium oxide sleeve can be used. In addition, graphite, silicon oxide and zirconium oxide are easy to process and light in weight.

[0080] Next, the structure of the feeding device 110 will be described.

[0081] Figure 5 The use status of the refiner adding device provided in the embodiment of the present application Figure 2 ; Figure 6 It is a schematic diagram of the structure of the plate.

[0082] See also Figure 5 and Figure 6 As shown, the feeding device 110 includes a support frame 111 and a driving motor 112, the support frame 111 is used to support the driving motor 112 so that the driving motor 112 is located above the heating device 120, and the rotating shaft 1121 of the driving motor 112 is connected to the through hole 41 of the plate 40, wherein the rod-shaped refining agent 10 is arranged on the plate 40.

[0083] Please continue to see Figure 5 and Figure 6 As shown, one end of the support frame 111 is installed on the ground, and the other end of the support frame 111 is used to support the driving motor 112. The support frame 111 has a mounting hole 1111, and the rotating shaft 1121 is passed through the mounting hole 1111. The rotating shaft 1121 and the mounting hole 1111 can be connected by a bearing, so that the rotating shaft 1121 can rotate relative to the support frame 111.

[0084] The rod-shaped thinning agent 10 is usually wound on a plate 40, and the axis of the plate 40 has a through hole 41. The rotating shaft 1121 of the driving motor 112 can be inserted into the through hole 41. When the driving motor 112 rotates, the rotating shaft 1121 can drive the plate 40 to rotate, so that the rod-shaped thinning agent 10 is unwound on the plate 40 and then enters the heating device 120.

[0085] The driving motor 112 is provided with a preset speed, and the preset speed is adjustable.

[0086] The preset speed of the driving motor 112 can be set according to the flow speed of the metal melt in the flow channel 30, thereby avoiding the problem that the amount of refiner added is too large when the preset speed of the driving motor 112 is too large or the amount of refiner added is too small when the preset speed is too small.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A refiner adding device, characterized in that: include: A feeding device and a heating device, wherein the feeding device is used to feed the rod-shaped thinning agent into the heating device, and the heating device is used to melt the rod-shaped thinning agent into a liquid thinning agent.

2. The refiner adding device according to claim 1, characterized in that: The heating device includes a refractory container and a heating sleeve, wherein the heating sleeve is mounted on the outside of the refractory container, and the refractory container includes a first end and a second end relative to each other, wherein the first end faces the feeding device and the second end faces away from the feeding device, the first end is used to receive the rod-shaped refining agent, and the second end is used to output the liquid refining agent.

3. The refiner adding device according to claim 2, characterized in that: The heating sleeve includes a plurality of induction coils, and the heating device also includes a power supply, which is electrically connected to the induction coils and is used to supply power to the induction coils so that the induction coils generate heat.

4. The refiner adding device according to claim 3, characterized in that: The refractory container includes a first heating section and a second heating section connected to the first heating section, the first heating section faces the first end, the second heating section faces the second end, and the induction coil is sleeved on the first heating section; the diameter of the first heating section is greater than the diameter of the second heating section, and the diameter of the first heating section is greater than the diameter of the rod-shaped refiner.

5. The refiner adding device according to claim 4, characterized in that: The diameter of the first heating section is 1.5 to 3.0 times the diameter of the rod-shaped thinning agent.

6. The refiner adding device according to claim 5, characterized in that: The refractory container further includes a connecting section, which is located between the first heating section and the second heating section, and a diameter of the connecting section gradually decreases from a side of the first heating section to a side of the second heating section.

7. The refiner adding device according to any one of claims 2 to 6, characterized in that: The refractory container is one of a graphite sleeve, a silicon oxide sleeve or a zirconium oxide sleeve.

8. The refiner adding device according to any one of claims 1 to 6, characterized in that: The feeding device includes a support frame and a driving motor, wherein the support frame is used to support the driving motor so that the driving motor is located above the heating device, and the rotating shaft of the driving motor is connected to the mounting hole of the plate, wherein the rod-shaped thinning agent plate is arranged on the plate.

9. The refiner adding device according to claim 8, characterized in that: The driving motor is provided with a preset speed, and the preset speed is adjustable.

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