Tundish device

Abstract

The utility model provides a tundish device belongs to foundry technical field, including the package body, its inside is provided with the pouring cavity and the mixed cavity who intercommunicate, is provided with the buffer board who arranges distribution along vertical direction in the mixed cavity, is provided with the buffer hole on the buffer board, and one end of adjacent two buffer boards respectively with the fixed setting of the inner cavity wall who is opposite setting in the mixed cavity, there is the gap between the other end of opposite setting and the inner cavity wall and forms the flow -through space, in vertical direction, one end of buffer board is located in the other end of buffer board who is opposite setting above, the advantage is that the flow -through space of alternate distribution is formed between adjacent buffer boards, so that the melt needs to experience multistage baffle path when flowing through the mixed cavity, guide melt to flow down in ladder type, melt flows through buffer hole or flow -through space under the action of gravity in turn, forms the flow path of controllable and zigzag, has prolonged the flow distance and the residence time of melt in the mixed cavity, has strengthened the mixing uniformity between each component of melt.

Description

Technical Field

[0001] This utility model belongs to the field of casting technology, and in particular to an intermediate ladle device. Background Technology

[0002] In the preparation of neodymium iron boron rare earth permanent magnet materials, the casting quality of the alloy melt directly affects the microstructure uniformity and overall magnetic properties of the final magnet. The tundish, as a crucial transitional device connecting the melting furnace and casting equipment (such as copper rollers), has a significant impact on the melt flow state, temperature distribution, and compositional uniformity due to its structural design.

[0003] However, the traditional tundish structure is relatively simple, which leads to some problems in practical applications: due to the lack of a reasonable buffer and mixing structure, the diffusion of alloying elements (such as Nd, B, Ga, etc.) in the melt is insufficient, and compositional segregation is prone to occur, which in turn reduces the coercivity and remanence of the magnet; in addition, the melt is prone to remain in the tundish during the cooling process, which not only reduces the output rate, but also increases the cleaning and maintenance costs. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an intermediate package structure that increases mixing uniformity.

[0005] The objective of this utility model can be achieved through the following technical solution: an intermediate packaging device, comprising:

[0006] The package contains an interconnected pouring chamber and a mixing chamber. The mixing chamber contains buffer plates arranged vertically. Each buffer plate has a buffer hole. One end of each pair of adjacent buffer plates is fixed to the inner wall of the mixing chamber, while the other end of each buffer plate has a gap with the inner wall to form a flow space. Vertically, one end of each buffer plate is located above the other end of the buffer plate.

[0007] An outlet is provided at the bottom of the package body, and the outlet has an outlet cavity that communicates with the mixing cavity.

[0008] When the melt enters the mixing chamber, it can flow out through the buffer hole or the flow space.

[0009] In the aforementioned intermediate package apparatus, an initial buffer zone is provided on the inner wall of the pouring chamber, and a buffer section is provided on the initial buffer zone. The melt entering the pouring chamber flows along the initial buffer zone into the mixing chamber.

[0010] In the aforementioned intermediate packaging device, the number of buffer holes on the buffer plate gradually increases from top to bottom along the vertical direction.

[0011] In the aforementioned intermediate packaging device, heating elements are provided inside the buffer plates.

[0012] In the aforementioned intermediate ladle apparatus, a baffle is provided at the outlet of the outflow cavity, and a gap exists between the baffle and the bottom wall of the outflow cavity to form an outflow channel. The baffle is inclined downward along the outflow direction of the melt.

[0013] In one of the above-mentioned intermediate packaging devices, a connecting part is provided at the bottom of the package body, the baffle is connected to the connecting part, and the baffle can slide relative to the connecting part to adjust the interval distance between the baffle and the bottom wall of the outflow cavity.

[0014] In the aforementioned intermediate packaging device, the connecting part is provided with a connecting cavity with an open end, one end of the baffle extends into the connecting cavity and can slide relative to the cavity wall, and the connecting part is provided with a locking member connected to the baffle.

[0015] In the aforementioned intermediate package device, the top of the intermediate package is provided with an overflow discharge section, the overflow discharge section includes an overflow cavity with an opening at the upper end, and the top of the pouring cavity is provided with an opening, so that the overflow cavity and the pouring cavity can communicate with each other.

[0016] In the aforementioned intermediate package device, a guide portion is also fixedly provided on the overflow discharge portion. The guide portion is provided with a guide cavity that communicates with the overflow discharge portion. The guide cavity includes a bottom surface and a guide surface that is perpendicular to the bottom surface and is disposed opposite to it. As the straight-line distance between the drainage cavity and the overflow discharge portion increases, the straight-line distance between the two guide surfaces gradually narrows.

[0017] In one of the above-mentioned intermediate ladle devices, the overflow cavity and the guide cavity are gradually inclined downward along the flow direction of the melt.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting buffer plates arranged vertically at intervals in the mixing chamber, the buffer plates are provided with buffer holes, and the buffer plates are arranged in a staggered manner with one end fixed and the other end suspended, so that an alternating flow space is formed between adjacent buffer plates. This causes the melt to go through multiple flow paths when flowing through the mixing chamber, guiding the melt to flow downward in a stepped manner. Under the action of gravity, the melt flows through the buffer holes or flow spaces in sequence, forming a tortuous and controllable flow path, which prolongs the flow distance and residence time of the melt in the mixing chamber, enhances the mixing uniformity between the components of the melt, and makes the melt flow out stably and uniformly. Attached Figure Description

[0019] Figure 1This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure;

[0021] Figure 3 yes Figure 1 A magnified schematic diagram of the local structure at point A;

[0022] Figure 4 yes Figure 1 A schematic diagram of the internal structure of the mixing chamber.

[0023] In the figure, 100 is the package body; 101 is the pouring cavity; 102 is the mixing cavity; 103 is the buffer plate; 104 is the buffer hole; 105 is the initial buffer zone; 200 is the outflow section; 201 is the outflow buffer zone; 300 is the heating element; 400 is the baffle; 401 is the connecting part; 402 is the moving groove; 403 is the locking element; 500 is the overflow discharge section; 501 is the overflow cavity; 502 is the guide part; 503 is the guide cavity; and 504 is the guide surface. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] like Figures 1-4 As shown, an intermediate packaging device includes:

[0027] The package 100 has an inlet cavity 101 and a mixing cavity 102 that are interconnected. The mixing cavity 102 has buffer plates 103 arranged vertically. The buffer plates 103 have buffer holes 104. One end of each of two adjacent buffer plates 103 is fixed to the inner wall of the mixing cavity 102, and the other end is separated from the inner wall to form a flow space. In the vertical direction, one end of the buffer plate 103 is located above the other end of the buffer plate 103.

[0028] The outflow section 200 is located at the bottom of the package 100, and an outflow cavity communicating with the mixing chamber 102 is provided inside the outflow section 200.

[0029] When the melt enters the mixing chamber 102, it can flow out through the buffer hole 104 or the flow space.

[0030] In this embodiment, buffer plates 103 are arranged vertically at intervals in the mixing chamber 102. The buffer plates 103 are provided with buffer holes 104. The buffer plates 103 are arranged in a staggered manner with one end fixed and the other end suspended. This creates an alternating flow space between adjacent buffer plates 103. As the melt flows through the mixing chamber 102, it has to go through multiple flow paths, which guides the melt to flow downward in a stepped manner. Under the action of gravity, the melt flows through the buffer holes 104 or the flow space in sequence, forming a tortuous and controllable flow path. This prolongs the flow distance and residence time of the melt in the mixing chamber 102, enhances the mixing uniformity between the components of the melt, and makes the melt flow out stably and uniformly.

[0031] In a further preferred embodiment, an initial buffer zone 105 is provided on the inner wall of the pouring chamber 101, and a buffer section is provided on the initial buffer zone 105. The melt entering the pouring chamber 101 flows along the initial buffer zone 105 into the mixing chamber 102. That is, after entering the pouring chamber 101, the melt can first pass through the initial buffer zone 105 for preliminary deceleration and uniform distribution, and then flow smoothly into the mixing chamber 102. This alleviates the problem of uneven flow velocity caused by direct impact of the melt, reduces the formation of turbulence, and ensures that the melt enters the subsequent mixing process in a more stable state.

[0032] It is worth mentioning that the buffer section includes a buffer texture that protrudes from the starting buffer 105.

[0033] Further preferably, the number of buffer holes 104 on the buffer plate 103 gradually increases from top to bottom along the vertical direction. This can effectively match the increasing flow rate of the melt due to gravity during its downward movement, achieving gradient control of the melt flow rate, improving the uniformity of melt flow and compositional stability, thereby improving the uniformity of the casting structure and the stability of the process.

[0034] Furthermore, an outflow buffer zone 201 is provided on the bottom wall of the outflow chamber. By providing a buffer zone on the bottom wall of the outflow chamber, the melt can undergo another deceleration and smoothing process before flowing out, reducing the turbulence or irregular flow phenomena that may occur when flowing out directly. This helps to ensure that the melt enters the casting equipment (such as copper rollers) at a more uniform speed and direction.

[0035] Preferably, each buffer plate 103 is provided with a heating element 300.

[0036] In this embodiment, heating rods 300 are inserted into the buffer plate 103 as heating elements. The heating rods are evenly and symmetrically arranged on both sides of the buffer plate 103. The arrangement of the heating elements 300 ensures that the buffer plate 103 maintains a constant operating temperature even during long-term operation. This avoids solidification of the melt due to temperature drop when it flows through the buffer plate 103. Appropriate heating can reduce the viscosity of the melt, making it easier to pass through the buffer holes 104 and the flow space, thereby improving the overall flow efficiency.

[0037] Further specified, a baffle 400 is provided at the outlet of the outflow cavity, and there is a gap between the baffle 400 and the bottom wall of the outflow cavity to form an outflow channel. The baffle 400 is inclined downward along the outflow direction of the melt.

[0038] In this embodiment, the inclined baffle 400 can play a certain guiding role during the melt flow process, which helps to disperse the melt into a wider liquid flow band, so that the melt has better lateral uniformity when entering the casting equipment, thereby significantly improving the consistency of casting thickness and microstructure uniformity.

[0039] More preferably, the bottom of the package 100 is provided with a connecting part 401, the baffle 400 is connected to the connecting part 401, and the baffle 400 can slide relative to each other to adjust the gap distance between the baffle 400 and the bottom wall of the outflow cavity.

[0040] In this embodiment, by adjusting the gap between the baffle 400 and the bottom wall of the outflow chamber, the outflow rate and flow distribution of the melt can be adjusted according to specific process requirements. A smaller gap can slow down the flow rate, which is suitable for situations requiring fine control; a larger gap allows for a higher flow rate.

[0041] Specifically, the connecting part 401 is provided with a connecting cavity with an opening at one end, one end of the baffle 400 extends into the connecting cavity and can slide relative to the cavity wall, and the connecting part 401 is provided with a locking member 403 connected to the baffle 400.

[0042] One end of the baffle 400 is inserted into the connecting cavity, where it can slide in a set direction, so that the gap between the baffle 400 and the bottom wall of the outflow cavity can be flexibly adjusted according to process requirements. The connecting part 401 is provided with a moving groove 402, and the locking member 403 includes a locking screw. The locking screw passes through the moving groove 402 and is screwed to the baffle 400 for fixation. By loosening the locking screw, the gap between the baffle 400 and the outflow cavity can be adjusted along the extension direction of the moving groove 402.

[0043] It is worth mentioning that the locking screw is equipped with an operating handle, which makes it easy to rotate the locking screw.

[0044] Preferably, the top of the intermediate package is provided with an overflow discharge section 500, which includes an overflow cavity 501 with an opening at the upper end and an opening at the top of the pouring cavity 101, so that the overflow cavity 501 and the pouring cavity 101 can communicate with each other.

[0045] In this embodiment, when the melt enters the pouring chamber 101, if the flow rate exceeds the predetermined capacity or the liquid level rises due to other reasons, the excess melt will automatically flow into the overflow chamber 501. This avoids the risk of direct overflow from the pouring chamber 101, prevents potential hazards to equipment and the environment caused by melt leakage, and also reduces material waste. Moreover, by timely discharging excess melt, the overflow discharge section 500 helps maintain a stable liquid level in the pouring chamber 101. This is crucial for accurately controlling the speed and volume of melt flowing into the mixing chamber 102. A stable liquid level ensures the consistency of the subsequent flow path, thereby improving the uniformity of the casting thickness and the consistency of the microstructure.

[0046] Furthermore, the overflow discharge section 500 is also fixedly provided with a guide section 502. The guide section 502 is provided with a guide cavity 503 that is connected to the overflow discharge section 500. The guide cavity 503 includes a bottom surface and a guide surface 504 that is perpendicular to the bottom surface and is disposed opposite to it. As the straight-line distance between the drainage cavity and the overflow discharge section 500 increases, the straight-line distance between the two guide surfaces 504 gradually narrows.

[0047] In this embodiment, as the straight-line distance from the guide cavity to the overflow discharge section 500 increases, the straight-line distance between the two guide surfaces 504 gradually narrows. This tapering design effectively guides and converges the overflowing melt, ensuring that the melt flows out in a more concentrated and stable manner, reducing splashing and turbulence during the overflow process. Furthermore, the outlet of the guide cavity 503 is specifically positioned towards the copper roller, so that even in the event of overflow, the melt can be precisely guided to the casting area, avoiding waste of the melt and potential damage to the equipment.

[0048] Further defining the design, the overflow chamber 501 and the guide chamber 503 are gradually inclined downwards along the flow direction of the melt. Utilizing the natural flow characteristics of the melt under gravity, the discharge speed and fluidity of the melt in the overflow state can be effectively improved, preventing the melt from stagnating or accumulating locally within the channel, thus avoiding problems such as blockage and condensation. Simultaneously, the inclined overflow channel combined with the tapered guide chamber 503 not only enhances the guidance and convergence of the overflowing melt but also significantly reduces the melt flow resistance, ensuring a more stable and continuous discharge and precise guidance to the copper roller area, achieving the dual effects of "safe overflow" and "controllable utilization."

[0049] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0051] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An intermediate packaging device, characterized in that, include: The package contains an interconnected pouring chamber and a mixing chamber. The mixing chamber contains buffer plates arranged vertically. Each buffer plate has a buffer hole. One end of each pair of adjacent buffer plates is fixed to the inner wall of the mixing chamber, while the other end of each buffer plate has a gap with the inner wall to form a flow space. Vertically, one end of each buffer plate is located above the other end of the buffer plate. An outlet is provided at the bottom of the package body, and the outlet has an outlet cavity that communicates with the mixing cavity. When the melt enters the mixing chamber, it can flow out through the buffer hole or the flow space.

2. The intermediate packaging device according to claim 1, characterized in that, An initial buffer zone is provided on the inner wall of the pouring chamber, and a buffer section is provided on the initial buffer zone. The melt entering the pouring chamber flows along the initial buffer zone into the mixing chamber.

3. The intermediate packaging device according to claim 1, characterized in that, Along the vertical direction, from top to bottom, the number of buffer holes on the buffer plate gradually increases.

4. The intermediate packaging device according to claim 1, characterized in that, Each of the buffer plates is equipped with a heating element.

5. The intermediate packaging device according to claim 1, characterized in that, A baffle is provided at the outlet of the outflow cavity, and there is a gap between the baffle and the bottom wall of the outflow cavity to form an outflow channel. The baffle is inclined downward along the outflow direction of the melt.

6. The intermediate packaging device according to claim 5, characterized in that, The bottom of the package is provided with a connecting part, the baffle is connected to the connecting part, and the baffle can slide relative to the connecting part to adjust the distance between the baffle and the bottom wall of the outflow cavity.

7. The intermediate packaging device according to claim 6, characterized in that, The connecting part is provided with a connecting cavity with an opening at one end. One end of the baffle extends into the connecting cavity and can slide relative to the cavity wall. The connecting part is provided with a locking member connected to the baffle.

8. The intermediate packaging device according to claim 1, characterized in that, The top of the intermediate package is provided with an overflow discharge section, which includes an overflow cavity with an opening at the upper end. The top of the pouring cavity is provided with an opening, so that the overflow cavity and the pouring cavity can communicate with each other.

9. An intermediate packaging device according to claim 8, characterized in that, The overflow discharge section is also fixedly provided with a guide section, and the guide section is provided with a guide cavity that is connected to the overflow discharge section. The guide cavity includes a bottom surface and a guide surface that is perpendicular to the bottom surface and is arranged opposite to it. As the straight distance between the guide cavity and the overflow discharge section increases, the straight distance between the two guide surfaces gradually narrows.

10. An intermediate packaging device according to claim 9, characterized in that, Along the flow direction of the melt, the overflow cavity and the guide cavity are gradually inclined downwards.

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