A ladle flow guiding sand flow guiding device

Abstract

The utility model discloses a kind of ladle drainage sand flow guide devices, belong to metallurgical equipment technical field, including the inclinedly arranged drainage groove body, the lower end of drainage groove body is equipped with first containing bin;The higher end of drainage groove body is equipped with fourth deflector, and the inclined direction of fourth deflector is opposite with the inclined direction of drainage groove body;The middle part of drainage groove body is equipped with second containing bin.The inclined drainage groove body can be guided by gravity to the first containing bin of lower end with drainage sand gathering, and the second containing bin of middle section forms the support for the drainage sand flowing along drainage groove body, forms the stroke of the intermittent shortening of drainage sand into bin, when second containing bin is full, subsequent drainage sand passes through this place due to sand particle between friction deceleration, avoid to cause greater impact to first containing bin;Subsequent molten steel is discharged from drainage groove body along fourth deflector under the shielding effect of drainage sand, complete separation collection to molten steel and drainage sand, and reduce external impurity into molten steel.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical equipment technology, specifically a ladle sand guiding device. Background Technology

[0002] Drainage sand is the filling material at the bottom nozzle of the ladle. It can be sintered at relatively low temperatures, but the thickness on the steel-facing side cannot be too thick, otherwise automatic pouring will not be possible. The ladle's self-opening rate is related to the type and quality of the drainage material, pouring conditions, ladle refractory materials, and the operator's skill level. Under the premise of optimized drainage material, the addition of drainage sand has a particularly significant impact on the ladle's self-opening rate.

[0003] During continuous casting, if the guiding sand (containing oxides such as SiO2 and Al2O3) used at the start of pouring directly into the tundish, it will react with the molten steel to generate non-metallic inclusions, leading to defects in the billet, deterioration of the tundish slag system, and nozzle blockage. Existing technologies such as manual sand receiving, fixed receiving devices, or argon purging methods all have problems such as high operational risks, easy equipment burn-out, or high costs.

[0004] Chinese patent CN204975312U discloses a ladle sand removal device. After casting begins, the sand flows along a guide pipe into an overflow trough, and then from the overflow trough into a recovery tank. When the molten steel flows out, taking advantage of the fact that the temperature of the molten steel is much higher than the melting point of the iron guide pipe, the molten steel melts the guide pipe instantly, causing it to lose its guiding function, and the molten steel flows into the tundish for collection. However, this structure results in the molten guide pipe increasing the impurity content during use. Therefore, a flow guiding device is provided to collect the sand while simultaneously reducing the amount of impurities entering the molten steel. Utility Model Content

[0005] To address the problem that impurities can easily enter the molten steel during the collection of guiding sand in the ladle at the start of casting, this utility model provides a guiding sand device for the ladle.

[0006] This utility model is achieved through the following technical solution: A steel ladle sand guiding device includes an inclined guiding channel body, a first receiving chamber at the lower end of the guiding channel body, a fourth guiding plate at the higher end of the guiding channel body, the fourth guiding plate having a concave arc cross-section and the inclination direction of the fourth guiding plate being opposite to the inclination direction of the guiding channel body, and a second receiving chamber at the middle of the guiding channel body.

[0007] The higher end of the diversion channel, adjacent to the fourth guide plate, corresponds vertically to the ladle outlet. The inclined diversion channel guides the diverting sand to gather in the lower first receiving chamber by gravity. The middle second receiving chamber receives the diverting sand flowing along the diversion channel, which helps to intermittently shorten the journey of the diverting sand into the chamber. When the second receiving chamber is full, subsequent diverting sand is slowed down by friction between the sand particles, avoiding a large impact on the first receiving chamber. The capacity of the diversion channel and the two receiving chambers is set to be slightly larger than the volume laid in the ladle. The subsequent molten steel flows out of the diversion channel along the fourth guide plate under the shielding effect of the diverting sand. The separation and collection of molten steel and diverting sand are completed without moving the diversion channel, and external impurities are reduced from entering the molten steel.

[0008] A further improvement of this invention is that the aforementioned diversion channel body is also provided with two inclined first guide plates. These two first guide plates are located on the side of the second receiving chamber closest to the first receiving chamber, and are symmetrically arranged on both sides of the axis of the diversion channel body. The symmetrically arranged first guide plates can divert and guide the diverted sand flowing towards the first receiving chamber after being decelerated in the second receiving chamber, allowing the sand to smoothly enter the first receiving chamber along both sides, avoiding sand splashing caused by concentrated impact. The inclined first guide plates further optimize the flow path of the diverted sand, complementing the receiving function of the second receiving chamber to ensure that the diverted sand gathers in sequence, improving the stability of separation and collection.

[0009] A further improvement of this invention is that the aforementioned diversion trough body is also provided with two inclined second guide plates. These two second guide plates are located on the side of the second receiving chamber near the fourth guide plate, and are symmetrically arranged on both sides of the diversion trough body axis. The second guide plates and the second receiving chamber form a connecting guide, allowing the diverted sand to be accurately guided into the second receiving chamber. Combined with the receiving function of the second receiving chamber, this ensures that the diverted sand preferentially accumulates in the middle section. The symmetrical structure avoids the accumulation or leakage of diverted sand caused by it being biased to one side of the trough, ensuring that the second receiving chamber evenly receives the diverted sand and enhancing the orderly nature of the graded collection.

[0010] A further improvement of this invention is that the axial angle β between the first guide plate and the main body of the diversion channel is greater than the axial angle α between the second guide plate and the main body of the diversion channel. A larger angle β allows the first guide plate to provide a smoother guidance for the diverted sand flowing out of the second receiving chamber, and combined with the deceleration effect of friction between sand particles, further reduces the impact on the first receiving chamber. A smaller angle α accelerates the initial flow of the diverted sand into the second receiving chamber, ensuring that the second receiving chamber quickly and effectively receives the sand. The angle difference enables flow rate control of the diverted sand at different stages, optimizing the overall flow rhythm.

[0011] A further improvement of this invention is that a second baffle is provided on the edge of the second receiving chamber, with the second baffle positioned closer to the first receiving chamber. The second baffle prevents the guiding sand in the second receiving chamber from overflowing into the first receiving chamber before it is full, ensuring that the first receiving chamber fully receives the guiding sand for subsequent deceleration. Simultaneously, when the second receiving chamber is full, the baffle guides the guiding sand to flow smoothly along a preset path towards the first receiving chamber, avoiding the impact caused by direct slippage. This design, combining sand particle friction and deceleration, provides double protection, enhancing the stability of the first receiving chamber's collection.

[0012] A further improvement of this utility model is that a first baffle plate is provided on the edge of the second receiving chamber, and the first baffle plate is located on the side close to the fourth guide plate. The length of the first baffle plate in the horizontal plane perpendicular to the axial direction of the diversion channel body is simultaneously less than both the width of the second receiving chamber and the length of the second baffle plate in the horizontal plane perpendicular to the axial direction of the diversion channel body. When the diverting sand flows from a high point to a low point, the first baffle plate can ensure the normal inflow of the diverting sand into the second receiving chamber. When the diverting sand fills the diversion channel body on the side of the first baffle plate away from the fourth guide plate, the first baffle plate can help block the diverting sand on the side close to the fourth guide plate. Especially when the subsequent molten steel flows out, it can prevent the molten steel from impacting the diverting sand out of the diversion channel body and helps the molten steel change its flow direction under the blocking effect of the diverting sand accumulated in the diversion channel body.

[0013] A further improvement of this utility model is that a third guide plate, which is inclined, is provided at the higher end of the aforementioned diversion channel body. The higher end of the third guide plate is seamlessly connected to the higher end of the fourth guide plate. The third guide plate is opposite to the outlet of the ladle, which can create a slope buffer for the diversion sand entering the diversion channel body. Furthermore, the seamless connection between the third and fourth guide plates reduces the accumulation of molten steel as it flows outward from the diversion channel body along the fourth guide plate.

[0014] A further improvement of this invention is that a funnel is connected to the outer wall of the higher end of the aforementioned flow channel body, and the fourth guide plate extends into the funnel. The funnel expands the receiving range for the molten steel flowing downward through the fourth guide plate, constrains the path of the molten steel as it flows downward, and prevents splashing.

[0015] A further improvement of this utility model is that an inclined cover plate is connected to the lower end of the aforementioned drainage channel body, and a bottom plate is used to seal the gap between the lower end of the cover plate and the lower end of the drainage channel body. The cover plate, the bottom plate, and the drainage channel body are assembled to form the first receiving chamber. The cover plate and the bottom plate, together with the lower end of the drainage channel body, form the first receiving chamber capable of containing the drainage sand, and the cover plate and the bottom plate are welded to the drainage channel body.

[0016] A further improvement of this invention is that the cross-section of the cover plate is arc-shaped, and the concave direction of the cover plate faces the body of the drainage channel. The arc-shaped cover plate increases the accommodating space of the first receiving chamber for the drainage sand.

[0017] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: the higher end of the diversion channel body and the position near the fourth guide plate correspond vertically to the outlet of the ladle. The inclined diversion channel body can guide the diversion sand to gather in the first receiving chamber at the lower end by gravity. The second receiving chamber in the middle section serves as a receiving chamber for the diversion sand flowing along the diversion channel body, which helps to intermittently shorten the journey of the diversion sand into the chamber. When the second receiving chamber is full, the subsequent diversion sand will slow down due to friction between the sand particles when passing through this chamber, avoiding a large impact on the first receiving chamber. The capacity of the diversion channel body and the two receiving chambers is set to be slightly larger than the volume laid in the ladle. The subsequent molten steel flows out of the diversion channel body along the fourth guide plate under the shielding effect of the diversion sand. The separation and collection of molten steel and diversion sand are completed without moving the position of the diversion channel body, and the entry of external impurities into the molten steel is reduced. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a first-angle structural diagram of a specific embodiment of the present utility model.

[0020] Figure 2 This is a second-angle structural diagram of a specific embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram showing the axial included angle of the first guide plate and the second guide plate in a specific embodiment of this utility model.

[0022] Figure 4 This is a side view of a specific embodiment of the present invention.

[0023] In the attached diagram: 10, diversion channel body; 11, cover plate; 111, bottom plate; 12, first receiving chamber; 13, first guide plate; 14, second guide plate; 15, third guide plate; 16, fourth guide plate; 20, second receiving chamber; 21, first baffle plate; 22, second baffle plate; 30, funnel. Detailed Implementation

[0024] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0025] like Figures 1-4 As shown, this utility model discloses a steel ladle sand guiding device, including an inclined guiding channel body 10, a first receiving chamber 12 at the lower end of the guiding channel body 10, a fourth guiding plate 16 at the higher end of the guiding channel body 10, the fourth guiding plate 16 having a concave arc cross-section, and the inclination direction of the fourth guiding plate 16 being opposite to the inclination direction of the guiding channel body 10; and a second receiving chamber 20 at the middle of the guiding channel body 10.

[0026] The higher end of the diversion channel body 10, adjacent to the fourth guide plate 16, corresponds vertically to the ladle outlet. The inclined diversion channel body 10 can guide the diversion sand to gather in the lower first receiving chamber 12 by gravity. The middle second receiving chamber 20 serves as a receiver for the diversion sand flowing along the diversion channel body 10, which helps to intermittently shorten the journey of the diversion sand into the chamber. When the second receiving chamber 20 is full, the subsequent diversion sand is slowed down by friction between the sand particles when passing through this point, avoiding a large impact on the first receiving chamber 12. The capacity of the diversion channel body 10 and the two receiving chambers is set to be slightly larger than the volume laid in the ladle. The subsequent molten steel flows out of the diversion channel body 10 along the fourth guide plate 16 under the shielding effect of the diversion sand. The separation and collection of molten steel and diversion sand are completed without moving the diversion channel body 10, and external impurities are reduced from entering the molten steel.

[0027] The carrying capacity of the first receiving chamber 12, the second receiving chamber 20, and the diversion channel body 10 for the diversion sand is slightly greater than the total amount of diversion sand laid in the ladle. When the diversion sand enters the diversion channel body 10 and enters the two receiving chambers respectively, the sand capacity of the two receiving chambers and the diversion channel body 10 ensures that the diversion sand will not overflow. When the molten steel subsequently enters the diversion channel body 10 and changes direction due to the obstruction of the diversion sand, the molten steel will not push the diversion sand out of the diversion channel body 10. At the same time, to prevent the molten steel from overflowing when it changes direction after entering the higher end of the diversion channel body 10, the barriers on both sides of the diversion channel body 10 at that point can be raised to allow the molten steel to flow out smoothly through the fourth guide plate 16 after being obstructed by the diversion sand.

[0028] The angle between the diversion channel body 10 and the horizontal plane is 15°-20°. While constraining the flow direction of the diversion sand, it prevents the molten steel from accumulating excessively in the diversion channel body 10 due to the angle, thereby better realizing the outward flow of molten steel along the fourth guide plate 16.

[0029] The diversion channel body 10 is further provided with two inclined first guide plates 13. The two first guide plates 13 are located on the side of the second receiving chamber 20 near the first receiving chamber 12, and are symmetrically arranged on both sides of the axis of the diversion channel body 10. The symmetrically arranged first guide plates 13 can divert and guide the diverted sand flowing to the first receiving chamber 12 after being decelerated by the second receiving chamber 20, so that the diverted sand enters the first receiving chamber 12 smoothly along both sides, avoiding sand splashing caused by concentrated impact; the inclined first guide plates 13 further optimize the flow path of the diverted sand, and cooperate with the receiving function of the second receiving chamber 20 to ensure that the diverted sand gathers in sequence and improves the stability of separation and collection.

[0030] The diversion channel body 10 is further provided with two inclined second guide plates 14. The two second guide plates 14 are located on the side of the second receiving chamber 20 near the fourth guide plate 16, and are symmetrically arranged on both sides of the axis of the diversion channel body 10. The second guide plates 14 and the second receiving chamber 20 form a connecting guide, which can accurately guide the diverted sand into the second receiving chamber 20. With the receiving function of the second receiving chamber 20, it is ensured that the diverted sand is preferentially accumulated in the middle section. The symmetrical structure avoids the accumulation or leakage of diverted sand caused by it being biased to one side of the channel, so that the second receiving chamber 20 can evenly receive the diverted sand and enhance the orderliness of graded collection.

[0031] The first guide plate 13 and the second guide plate 14 are respectively disposed on both sides of the second receiving chamber 20. After the diversion sand is accumulated on the diversion channel body 10, the friction is increased by the contact between the guide plate and the diversion sand, thereby reducing the load on the first receiving chamber 12 and optimizing the weight distribution of the diversion sand on the diversion channel body 10.

[0032] The axial angle β between the first guide plate 13 and the diversion channel body 10 is greater than the axial angle α between the second guide plate 14 and the diversion channel body 10. A larger angle β allows the first guide plate 13 to provide a smoother guide for the diverted sand flowing out of the second receiving chamber 20, further reducing the impact on the first receiving chamber 12 due to the deceleration effect of sand particle friction. A smaller angle α accelerates the initial flow of diverted sand into the second receiving chamber 20, ensuring that the second receiving chamber 20 quickly and effectively receives the sand. The angle difference allows for flow rate control of the diverted sand at different stages, optimizing the overall flow rhythm. The axial angle α is 25°-30°, and the axial angle β is 30°-35°.

[0033] A second baffle plate 22 is provided on the edge of the second receiving chamber 20, and the second baffle plate 22 is located on the side close to the first receiving chamber 12. The second baffle plate 22 can prevent the guiding sand in the second receiving chamber 20 from overflowing into the first receiving chamber 12 when it is not full, ensuring that it can fully receive the guiding sand to achieve the subsequent deceleration effect; at the same time, when the second receiving chamber 20 is full, the baffle plate can guide the guiding sand to flow smoothly towards the first receiving chamber 12 along a preset path, avoiding the impact caused by direct sliding. The design of friction deceleration with sand particles forms a double protection, improving the stability of collection in the first receiving chamber 12.

[0034] A first baffle plate 21 is provided on the edge of the second receiving chamber 20, and the first baffle plate 21 is located on the side close to the fourth guide plate 16. The length of the first baffle plate 21 in the horizontal plane perpendicular to the axis of the diversion channel body 10 is both less than the length of the widest part of the second receiving chamber 20 and the length of the second baffle plate 22 in the horizontal plane perpendicular to the axis of the diversion channel body 10. When the diverting sand flows from a high place to a low place, the first baffle plate 21 can ensure the normal inflow of the diverting sand into the second receiving chamber 20. When the diverting sand fills the diversion channel body 10 on the side of the first baffle plate 21 away from the fourth guide plate 16, the first baffle plate 21 can help to block the diverting sand on the side close to the fourth guide plate 16. In particular, when the molten steel flows out later, it can prevent the molten steel from impacting the diverting sand out of the diversion channel body 10 and help the molten steel change its flow direction under the blocking effect of the diverting sand accumulated in the diversion channel body 10.

[0035] The higher end of the diversion channel body 10 is also provided with a third guide plate 15, which is inclined and seamlessly connected to the higher end of the fourth guide plate 16. The third guide plate 15 is opposite to the outlet of the ladle and can form a slope buffer for the diversion sand entering the diversion channel body 10. The seamless connection between the third guide plate 15 and the fourth guide plate 16 reduces the accumulation of molten steel when it flows outward from the diversion channel body 10 along the fourth guide plate 16.

[0036] The cross-sections of the third guide plate 15 and the fourth guide plate 16 are both arc-shaped, which helps to gather the material inward. Except for the edge connecting the third guide plate 15 to the fourth guide plate 16, the third guide plate 15 is sealed to the inner wall of the diversion channel body 10 to prevent molten steel from spilling through the gaps.

[0037] A funnel 30 is connected to the outer wall of the higher end of the diversion channel body 10, and the fourth guide plate 16 extends into the funnel 30. The funnel 30 expands the receiving range of the molten steel flowing downward through the fourth guide plate 16, constrains the path of the molten steel as it flows downward, and prevents splashing.

[0038] An inclined cover plate 11 is connected to the lower end of the diversion channel body 10. A bottom plate 111 is used to seal the lower end of the cover plate 11 and the lower end of the diversion channel body 10. The cover plate 11, the bottom plate 111, and the diversion channel body 10 are assembled to form the first receiving chamber 12. The cover plate 11, the bottom plate 111, and the lower end of the diversion channel body 10 are assembled to form the first receiving chamber 12 capable of containing diverted sand. The cover plate 11 and the bottom plate 111 are welded to the diversion channel body 10.

[0039] The cover plate 11 has an arc-shaped cross-section, and the concave direction of the cover plate 11 faces the diversion channel body 10. The arc-shaped cover plate 11 increases the accommodating space of the first accommodating chamber 12 for the diverting sand.

[0040] To ensure safety when in contact with high-temperature molten steel, all structural components of this device are made of high-alumina refractory materials (such as high-alumina bricks or castables with an aluminum content of more than 70%) or magnesia-carbon materials with high refractoriness and high high-temperature strength.

[0041] In summary, the working principle of this device is as follows: the ladle sand guiding device achieves the orderly separation and collection of sand and molten steel through structural design. During the collection and buffering process of the sand, the sand in the ladle enters the higher end of the guiding channel body 10 and, with the help of the inclined angle of the guiding channel body 10, flows towards the lower end of the first receiving chamber 12 under the action of gravity. The middle section of the second receiving chamber 20 first receives the flowing sand, and the second baffle 22 on its edge can prevent the sand from overflowing into the first receiving chamber 12 before it is full. When the second receiving chamber 20 is full, the subsequent sand flow is slowed down by the friction between sand particles, and the second guide plate 14 accurately guides the sand into the chamber to avoid bias and accumulation. The sand slowed down by the second receiving chamber 20 enters the first receiving chamber 12 smoothly under the diversion guidance of the first guide plate 13, reducing impact.

[0042] Regarding the separation and discharge of molten steel and diverting sand, since the total sand capacity of the device is slightly larger than the amount of diverting sand laid in the ladle and ensures no overflow, after the diverting sand fills the device, the subsequent molten steel is blocked by the diverting sand and its flow direction is changed. The blocked molten steel flows along the higher end of the diversion channel body 10 and is guided by the fourth guide plate 16 to flow out. The higher end enclosure and the third guide plate 15 can prevent the molten steel from overflowing. The first baffle plate 21 can help block the diverting sand from being impacted out of the device by the molten steel. After the molten steel flows out through the fourth guide plate 16, it is received by the funnel 30, realizing separation and collection and reducing the entry of impurities.

[0043] The core advantage of this device stems from the tilt angle of the diversion channel body 10, which ensures the flow of diverting sand while preventing excessive accumulation of molten steel. The difference in the angle of the guide plates allows for the regulation of the flow rate of the diverting sand at different stages. The sand capacity and structural design ensure that the molten steel is smoothly discharged and the diverting sand is not washed out, thereby improving separation stability and operational efficiency.

[0044] The present invention discloses a ladle sand guiding device. The higher end of the guiding channel body, adjacent to the fourth guide plate, corresponds vertically to the ladle outlet. The inclined guiding channel body can guide the sand to gather in the lower first receiving chamber by gravity. The middle second receiving chamber serves as a receiver for the sand flowing along the guiding channel body, which helps to intermittently shorten the sand's journey into the chamber. When the second receiving chamber is full, subsequent sand passing through this chamber is slowed down by friction between sand particles, avoiding a large impact on the first receiving chamber. The capacity of the guiding channel body and the two receiving chambers is set to be slightly larger than the volume laid in the ladle. Subsequent molten steel flows out of the guiding channel body along the fourth guide plate under the shielding effect of the sand. The separation and collection of molten steel and sand are completed without moving the guiding channel body, and external impurities are reduced from entering the molten steel.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel ladle sand diversion device, comprising an inclined diversion channel body (10), characterized in that, The lower end of the diversion channel body (10) is provided with a first receiving chamber (12); the higher end of the diversion channel body (10) is provided with a fourth guide plate (16), the cross-section of the fourth guide plate (16) is an inwardly concave arc shape, and the inclination direction of the fourth guide plate (16) is opposite to the inclination direction of the diversion channel body (10); the middle part of the diversion channel body (10) is provided with a second receiving chamber (20).

2. The ladle sand guiding device according to claim 1, characterized in that, The diversion channel body (10) is also provided with two first guide plates (13) that are inclined. The two first guide plates (13) are located on the side of the second receiving chamber (20) close to the first receiving chamber (12), and the two first guide plates (13) are symmetrically arranged on both sides of the axis of the diversion channel body (10).

3. The ladle sand guiding device according to claim 2, characterized in that, The diversion channel body (10) is also provided with two inclined second guide plates (14). The two second guide plates (14) are located on the side of the second receiving chamber (20) near the fourth guide plate (16), and the two second guide plates (14) are symmetrically arranged on both sides of the axis of the diversion channel body (10).

4. The ladle sand guiding device according to claim 3, characterized in that, The axial angle β between the first guide plate (13) and the diversion channel body (10) is greater than the axial angle α between the second guide plate (14) and the diversion channel body (10).

5. A ladle sand guiding device according to any one of claims 1 to 4, characterized in that, The second receiving compartment (20) is provided with a second baffle (22) on its edge, and the second baffle (22) is provided on the side close to the first receiving compartment (12).

6. The ladle sand guiding device according to claim 5, characterized in that, The second containment chamber (20) is provided with a first baffle plate (21) on its edge, and the first baffle plate (21) is located on the side close to the fourth guide plate (16).

7. A ladle sand guiding device according to any one of claims 1 to 4, characterized in that, The higher end of the diversion channel body (10) is also provided with a third guide plate (15) that is inclined, and the higher end of the third guide plate (15) is seamlessly connected to the higher end of the fourth guide plate (16).

8. A ladle sand guiding device according to claim 7, characterized in that, A funnel (30) is connected to the outer wall of the higher end of the diversion channel body (10), and the fourth guide plate (16) extends into the funnel (30).

9. A ladle sand guiding device according to any one of claims 1 to 4, characterized in that, The lower end of the diversion channel body (10) is connected to an inclined cover plate (11), and a bottom plate (111) is sealed between the lower end of the cover plate (11) and the lower end of the diversion channel body (10). The cover plate (11), the bottom plate (111) and the diversion channel body (10) are assembled to form the first receiving chamber (12).

10. A ladle sand guiding device according to claim 9, characterized in that, The cross-section of the cover plate (11) is arc-shaped, and the concave direction of the cover plate (11) faces the drainage channel body (10).

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