A slag skimming device

CN224872872UActive Publication Date: 2026-10-20SHANXI YIJIANG ALUMINUM-BASED NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202522180770.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2026-10-20
Estimated Expiration
2035-10-15

AI Technical Summary

Technical Problem

[0004]有鉴于此,本实用新型提供了一种扒渣装置,以解决相关技术中人工扒渣时,由于扒渣工具重量较大,导致整个扒渣过程劳动强度大,操作起来极不方便的技术问题

Benefits of technology

1.回转驱动件、偏转组件和伸缩组件配合,可实现耙板结构的转动、偏转和伸缩运动,避免人工扒渣劳动强度大、操作不便的问题。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical fields of metal smelting disclose a kind of raking slag device, including seat, raking slag subassembly, deflection subassembly and telescopic subassembly, raking slag subassembly includes rotary drive and harrow plate structure, rotary drive is installed on seat, and with harrow plate structure transmission connection, rotary drive can drive harrow plate structure rotation;Deflection subassembly is installed on rotary drive, for driving harrow plate structure deflection around seat;Telescopic subassembly is installed on deflection subassembly, and telescopic subassembly is used to drive harrow plate structure away from or close to seat.Rotary drive drives harrow plate structure rotation, can adjust the rotary angle of harrow plate structure;Deflection subassembly drives harrow plate structure deflection around seat, can change the deflection direction of harrow plate structure;Telescopic subassembly drives harrow plate structure away from or close to seat, can realize the telescopic movement of harrow plate structure in horizontal direction, to make raking slag device flexible movement in refining furnace, effectively complete raking slag operation, avoid artificial raking slag labor intensity.
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Description

Technical Field

[0001] This utility model relates to the technical field of metal smelting, and specifically to a slag removal device. Background Technology

[0002] Aluminum alloy ingots are lightweight metals with a specific strength approaching that of high-alloy steel and a specific stiffness exceeding that of steel. They possess excellent casting properties, plastic processing properties, electrical and thermal conductivity, corrosion resistance, and weldability, making them commonly used as structural materials and essential in the production of heavy-duty trucks and other industries. With the continuous development of the metal smelting industry, the production technology of aluminum alloy ingots is also constantly improving, leading to increasingly widespread applications and ever-increasing demands for production efficiency and quality.

[0003] In the aluminum alloy refining process, after the addition of refining agents, impurities may precipitate and slag may float on the surface of the molten metal. Therefore, it is necessary to remove the slag from the molten metal surface. Currently, there are two common methods for slag removal in refining. One method is to manually remove the slag using homemade, simple tools. These tools are generally made of metal to meet high-temperature resistance requirements. However, manual slag removal is labor-intensive and extremely inconvenient due to the weight of the tools. Utility Model Content

[0004] In view of this, the present invention provides a slag removal device to solve the technical problem in the related art that when manually removing slag, the slag removal tools are heavy, resulting in high labor intensity and inconvenience in the entire slag removal process.

[0005] In a first aspect, this utility model provides a slag-removing device, comprising: seat body; The slag removal assembly includes a rotary drive and a rake plate structure. The rotary drive is mounted on the base and is connected to the rake plate structure in a transmission manner. The rotary drive can drive the rake plate structure to rotate. A deflection assembly, mounted on the rotary drive, is used to drive the rake plate structure to deflect around the base. A telescopic assembly is mounted on the deflection assembly, and the telescopic assembly is used to drive the rake structure away from or towards the base.

[0006] By adopting the above technical solution, the rotary drive component drives the rake plate structure to rotate, and the rotation angle of the rake plate structure can be adjusted; the deflection component drives the rake plate structure to deflect around the base, and can change the deflection direction of the rake plate structure; the telescopic component drives the rake plate structure to move away from or closer to the base, and can realize the horizontal telescopic movement of the rake plate structure, thereby enabling the slag removal device to move flexibly in the refining furnace, effectively complete the slag removal operation, and avoid the problems of high labor intensity and inconvenience of manual slag removal.

[0007] Preferably, the rotary drive includes: The first motor is fixed to the base. The first drive shaft has one end fixedly connected to the output shaft of the first motor, and the other end rotatably connected to the base. The first gear is sleeved on the outer circumference of the first drive shaft and is fixedly connected to the first drive shaft; The second gear is rotatably connected to the seat and meshes with the first gear; The column is fixed to the second gear.

[0008] By adopting the above technical solution, the first motor drives the first transmission shaft to rotate, which in turn drives the first gear to rotate. The first gear meshes with the second gear, thereby causing the column to rotate and realizing the rotation of the rake plate structure. This provides a stable rotary drive structure for the slag removal device, ensuring that the rake plate structure can rotate as required to perform slag removal operations.

[0009] Preferably, the number of teeth of the first gear is less than the number of teeth of the second gear.

[0010] By adopting the above technical solution, the rotary drive component of the slag removal device uses a first gear with fewer teeth than the second gear to mesh with the second gear for transmission. This structure can reduce the rotation of the rake structure by utilizing the gear transmission ratio when the first motor drives the first transmission shaft to rotate, making the rotation of the rake structure more stable and precise. This is beneficial for better control of the rotation of the rake structure during slag removal operations, thereby improving the accuracy and stability of the slag removal operation.

[0011] Preferably, the deflection component includes: The deflection block is rotatably connected to the column. A deflection drive is mounted on the column and connected to the deflection block. The deflection drive can drive the deflection block to deflect around the column.

[0012] By adopting the above technical solution, the base, rotary drive, rake plate structure, telescopic component, deflection block, and deflection drive of the slag removal device cooperate to enable the rake plate structure to deflect around the base, achieving multi-angle position adjustment of the rake plate structure. This facilitates slag removal operations at different locations in the refining furnace, improving the flexibility and comprehensiveness of slag removal. The rotary drive, consisting of the first motor, first transmission shaft, first gear, second gear, and column, drives the rake plate structure to rotate, providing rotational power. The telescopic component drives the rake plate structure to move away from or towards the base, achieving horizontal telescopic movement of the rake plate structure. Combined with the deflection component, this allows the rake plate structure to better approach and move away from slag at different locations within the refining furnace, improving the slag removal effect.

[0013] Preferably, the deflection drive includes a hydraulic cylinder, the support of which is hinged to the column, and its telescopic end is hinged to the deflection block.

[0014] By adopting the above technical solution, the hydraulic cylinder's support is hinged to the column, and the telescopic end is hinged to the deflection block. This allows the deflection block to deflect around the column, realizing the deflection action of the rake plate structure around the base. This provides power support for the multi-angle operation of the slag removal device and facilitates slag removal operations at different positions of the refining furnace.

[0015] Preferably, the telescopic component includes: The second motor is fixed on the deflection block; The second drive shaft has one end fixedly connected to the output shaft of the second motor, and the other end rotatably connected to the deflection block; The third gear is sleeved on the outer circumference of the second drive shaft and is fixedly connected to the second drive shaft; A sliding arm, one end of which passes through the deflection block and extends out of the deflection block, and is slidably connected to the deflection block; The rack is fixed to the sliding arm and meshes with the third gear.

[0016] By adopting the above technical solution, the second motor drives the second transmission shaft to rotate, which in turn drives the third gear to rotate. Because the third gear meshes with the rack fixed on the sliding arm, the sliding arm can move along the sliding connection direction with the deflection block, thereby driving the rake plate structure away from or close to the base. In conjunction with the rotary drive component and deflection component in the slag removal device, the rake plate structure can move flexibly in multiple directions, so as to better remove slag from the raw materials in the refining furnace.

[0017] Preferably, the slag removal assembly includes: The third motor is fixed to one end of the sliding arm; The third drive shaft is fixedly connected at one end to the output shaft of the third motor; The first helical gear is fixedly connected to the other end of the third transmission shaft; The second helical gear meshes with the first helical gear, and the second helical gear is perpendicular to the first helical gear; The fourth drive shaft has both ends extending out of the sliding arm and are rotatably connected to the sliding arm. The second helical gear is sleeved on the outer circumference of the fourth drive shaft and is fixedly connected to the fourth drive shaft. The portion of the fourth drive shaft extending out of the outer circumference of the sliding arm is fixedly connected to the rake plate structure.

[0018] By adopting the above technical solution, the third motor drives the third transmission shaft to rotate, which in turn drives the first helical gear to rotate, thereby causing the second helical gear meshing with it to rotate, which in turn drives the fourth transmission shaft to rotate, thereby realizing the rotation of the rake plate structure and providing power to the rake plate structure so that the rake plate structure can perform slag removal work. In conjunction with the slag removal device's base, rotary drive component, deflection component, and telescopic component, the slag removal operation of the raw materials in the refining furnace can be realized.

[0019] Preferably, the rake plate structure includes: Multiple slag-removing plates are distributed at intervals around the fourth drive shaft, and each slag-removing plate is used for refining slag removal; A cleaning brush, fixed on the sliding arm and located within the movement range of the slag-removing plate, is used to clean the slag-removing plate.

[0020] By adopting the above technical solution, multiple slag removal plates are distributed at intervals around the fourth drive shaft and can be switched with each other to ensure that there is less slag on the slag removal plates and better ensure the slag removal effect; the cleaning brush can clean the slag removal plates when they rotate and switch, further ensuring the cleanliness of the slag removal plates and improving the slag removal effect.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The rotary drive, deflection assembly, and telescopic assembly work together to realize the rotation, deflection, and telescopic movements of the rake plate structure, avoiding the problems of high labor intensity and inconvenience of manual slag removal.

[0022] 2. Multiple slag removal plates can be switched between each other to ensure that there is not enough slag on the slag removal plates, thus ensuring better slag removal effect.

[0023] 3. The cleaning brush can clean the slag removal plate when it rotates and switches, further ensuring the slag removal effect of the slag removal plate. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the slag removal device of this utility model; Figure 2 This is a first-view cross-sectional view of the slag removal device of this utility model; Figure 3 This is a cross-sectional view from a second perspective of the slag removal device of this utility model; Figure 4This is a third-angle cross-sectional view of the slag removal device of this utility model.

[0026] Explanation of reference numerals in the attached figures: 100. Base body; 201. First motor; 202. First gear; 203. Second gear; 204. Column; 205. Slag removal plate; 206. Cleaning brush; 301. Deflection block; 302. Hydraulic cylinder; 401. Second motor; 402. Third gear; 403. Sliding arm; 404. Rack; 501. Third motor; 502. Third drive shaft; 503. First helical gear; 504. Second helical gear; 505. Fourth drive shaft. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0031] This application mainly adopts a rake plate structure driven by a rotary, deflecting and telescopic component to remove slag, which achieves the effect of reducing the labor intensity of slag removal and improving the efficiency of slag removal. The following is a further detailed description of this application. Example

[0032] The slag removal device provided in the embodiments of this application, such as Figures 1 to 4 As shown, the system includes a base 100, a slag-removing assembly, a deflection assembly, and a telescopic assembly. The rotary drive of the slag-removing assembly is mounted on the base 100 and connected to the rake structure, driving the rake structure to rotate. The deflection assembly is mounted on the rotary drive and drives the rake structure to deflect around the base 100. The telescopic assembly is mounted on the deflection assembly and drives the rake structure to move away from or closer to the base 100. This achieves flexible control of the rake structure for slag removal, reducing labor intensity and improving slag removal efficiency. This is because the three different driving methods—rotation, deflection, and telescopic—allow the rake structure to move in multiple directions in three-dimensional space, better adapting to different slag removal scenarios.

[0033] Specifically, such as Figure 3 As shown, the rotary drive includes a first motor 201, a first drive shaft, a first gear 202, a second gear 203, and a column 204. The first motor 201 is fixed to the base 100 and is the power source for the entire rotary drive. Typically, the first motor 201 can be a high-temperature resistant motor with a high protection rating to adapt to the high-temperature environment of metal smelting. Alternatively, a hydraulic motor or other power device can be used to replace the first motor 201, as long as it provides suitable rotational power. One end of the first drive shaft is fixedly connected to the output shaft of the first motor 201, and the other end is rotatably connected to the base 100. The first drive shaft is generally made of high-strength metal materials, such as alloy steel, to ensure that it will not deform during power transmission. Its connection method can be a key connection or similar method to ensure effective power transmission. The first gear 202 is sleeved on the outer circumference of the first drive shaft and is fixedly connected to it. The first gear 202 is usually made of wear-resistant alloy steel, and its tooth profile is precisely designed to ensure good meshing with the second gear 203. Gears manufactured using powder metallurgy can also be used instead. The second gear 203 is rotatably connected to the base 100 and meshes with the first gear 202. The size and number of teeth of the second gear 203 are designed according to the specific transmission ratio requirements, and it is also made of wear-resistant material. The column 204 is fixed on the second gear 203. The column 204 is generally cylindrical and made of high-strength steel, and is used to support and connect subsequent components.

[0034] In this embodiment, after the first motor 201 starts, it drives the first transmission shaft to rotate. The first gear 202 on the first transmission shaft rotates accordingly. Through meshing with the second gear 203, power is transmitted to the second gear 203, which in turn causes the column 204 fixed on the second gear 203 to rotate, realizing the rotational movement of the rake structure. This gear transmission method can precisely control the speed and angle of rotation, ensuring the accuracy of the slag removal operation.

[0035] Specifically, such as Figure 2 As shown, the deflection assembly includes a deflection block 301 and a deflection drive component. The deflection block 301 is rotatably connected to the column 204. The deflection block 301 is typically a block structure made of high-strength metal and is rotatably connected to the column 204 via a pin to ensure rotational flexibility. The deflection drive component is mounted on the column 204 and connected to the deflection block 301, enabling the deflection block 301 to deflect around the column 204. The deflection drive component includes a hydraulic cylinder 302. The support of the hydraulic cylinder 302 is hinged to the column 204, and its telescopic end is hinged to the deflection block 301. The working medium of the hydraulic cylinder 302 is generally hydraulic oil, which provides a large driving force. Alternatively, an electric actuator or other device can be used to replace the hydraulic cylinder 302.

[0036] In this embodiment, when the hydraulic cylinder 302 extends or retracts, the movement of its extension end is transmitted to the deflection block 301 through the hinge point, causing the deflection block 301 to deflect around the column 204, thereby driving the rake plate structure to deflect around the base 100, thus adjusting the slag removal position. This hinged connection method allows for more flexible deflection movement, adapting to different working conditions.

[0037] Specifically, such as Figure 2 and Figure 3As shown, the telescopic assembly includes a second motor 401, a second drive shaft, a third gear 402, a sliding arm 403, and a rack 404. The second motor 401 is fixed to the deflection block 301 and provides power for the telescopic movement. A high-temperature resistant motor can be used, or a precision-controlled motor such as a stepper motor can be used instead. One end of the second drive shaft is fixedly connected to the output shaft of the second motor 401, and the other end is rotatably connected to the deflection block 301. The material and connection method of the second drive shaft are similar to those of the first drive shaft. The third gear 402 is sleeved on the outer circumference of the second drive shaft and is fixedly connected to it. The function of the third gear 402 is to transmit the power of the second motor 401 to the rack 404. One end of the sliding arm 403 passes through the deflection block 301 and extends beyond it, and is slidably connected to the deflection block 301. The sliding arm 403 is generally a hollow metal rod with a smooth surface to reduce friction with the deflection block 301. Alternatively, a guide rail slider structure can be provided on the surface of the sliding arm 403 to achieve a sliding connection. The rack 404 is fixed to the sliding arm 403 and meshes with the third gear 402. The tooth profile of the rack 404 matches that of the third gear 402, and the extension and retraction of the sliding arm 403 is achieved through the transmission of the gear and rack 404.

[0038] In this embodiment, after the second motor 401 is started, it drives the second transmission shaft to rotate. The third gear 402 on the second transmission shaft rotates accordingly. Through meshing with the rack 404, the rotational motion is converted into the linear motion of the sliding arm 403, thereby driving the rake structure away from or towards the base 100. This gear and rack 404 transmission method can achieve precise telescopic control.

[0039] Specifically, such as Figure 4 and Figure 4As shown, the slag-removing assembly includes a third motor 501, a third drive shaft 502, a first helical gear 503, a second helical gear 504, a fourth drive shaft 505, and a rake plate structure. The third motor 501 is fixed to one end of the sliding arm 403, providing power for the rotation of the rake plate structure. The third motor 501 can be a small high-speed motor or a servo motor for more precise control. One end of the third drive shaft 502 is fixedly connected to the output shaft of the third motor 501. The material and connection method of the third drive shaft 502 are similar to those of the previous drive shafts. The first helical gear 503 is fixedly connected to the other end of the third drive shaft 502. The first helical gear 503 has helical teeth, enabling power transmission in different directions. The second helical gear 504 meshes with the first helical gear 503, and the second helical gear 504 is perpendicular to the first helical gear 503. The second helical gear 504 also has a helical tooth structure, changing the direction of power transmission through meshing with the first helical gear 503. The fourth drive shaft 505 extends beyond the sliding arm 403 at both ends and is rotatably connected to the sliding arm 403. The second helical gear 504 is sleeved on the outer circumference of the fourth drive shaft 505 and is fixedly connected to the fourth drive shaft 505. The portion of the fourth drive shaft 505 extending beyond the outer circumference of the sliding arm 403 is fixedly connected to the rake plate structure. The fourth drive shaft 505 is generally made of solid metal to ensure sufficient strength.

[0040] In this embodiment, after the third motor 501 starts, it drives the third transmission shaft 502 to rotate. The first helical gear 503 on the third transmission shaft 502 rotates and, through meshing with the second helical gear 504, transmits power to the fourth transmission shaft 505, causing the fourth transmission shaft 505 to rotate, thereby driving the rake plate structure to rotate, realizing the switching and rotation of the slag removal plate 205.

[0041] Specifically, such as Figure 4 As shown, the rake plate structure includes multiple slag-removing plates 205 and cleaning brushes 206. The multiple slag-removing plates 205 are spaced apart around the fourth drive shaft 505, and each slag-removing plate 205 is used for refining slag removal. The slag-removing plates 205 are generally made of high-temperature resistant and wear-resistant alloy materials, and their shape can be designed according to the specific requirements of slag removal, such as flat or curved shapes. A special coating can also be applied to the surface of the slag-removing plates 205 to improve their wear resistance and corrosion resistance. The cleaning brushes 206 are fixed on the sliding arm 403 and located within the movement range of the slag-removing plates 205, and are used for cleaning the slag-removing plates 205. The bristles of the cleaning brushes 206 are generally made of high-temperature resistant steel wire or similar materials, and their fixing method can be welding or bolt connection.

[0042] In this embodiment, after the slag removal plate 205 performs the slag removal operation, the rotation of the fourth transmission shaft 505 causes the slag removal plate 205 to move to the position of the cleaning brush 206. The cleaning brush 206 cleans the slag on the slag removal plate 205, and then the slag removal plate 205 is switched to continue the slag removal operation. This can ensure the cleanliness of the slag removal plate 205 and improve the slag removal effect.

[0043] The implementation principle of this embodiment is as follows: This slag removal device achieves flexible movement of the rake plate structure in multiple dimensions through the coordinated work of various driving components. Compared with the traditional manual slag removal method, it greatly reduces labor intensity and improves work efficiency. Simultaneously, the design of multiple slag removal plates 205 and the coordination of cleaning brushes 206 ensure continuous and efficient slag removal. Compared with existing complex slag removal equipment, this device has a more rational structure and can effectively solve the problem of incomplete slag removal, making a significant improvement and contribution to existing technology. Example

[0044] The difference between this embodiment and the previous embodiment is that the first motor 201 in the rotary drive component is replaced by a hydraulic motor. Hydraulic motors have advantages such as high torque and a wide speed range. In applications with high power requirements, hydraulic motors can better meet the needs. The hydraulic motor provides power through a hydraulic system, and its control method differs from that of the first motor 201, but it can still achieve rotary drive of the rake structure.

[0045] The implementation principle of this embodiment is as follows: replacing the first motor 201 with a hydraulic motor can provide more stable power output in harsh environments such as high temperature and heavy load, thereby improving the reliability and adaptability of the device. At the same time, the speed regulation and overload protection functions of the hydraulic system can better protect the safe operation of the device, further improving the performance of the slag removal device, which is an optimization and improvement of the existing technology.

[0046] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A slag removal device, characterized in that, include: base(100); The slag removal assembly includes a rotary drive and a rake structure. The rotary drive is mounted on the base (100) and is connected to the rake structure in a transmission manner. The rotary drive can drive the rake structure to rotate. A deflection assembly, mounted on the rotary drive, is used to drive the rake structure to deflect around the base (100); A telescopic assembly, mounted on the deflection assembly, is used to drive the rake structure away from or towards the base (100).

2. The slag removal device according to claim 1, characterized in that, The rotary drive component includes: The first motor (201) is fixed on the base (100); The first drive shaft has one end fixedly connected to the output shaft of the first motor (201), and the other end rotatably connected to the base (100); The first gear (202) is sleeved on the outer circumference of the first transmission shaft and is fixedly connected to the first transmission shaft; The second gear (203) is rotatably connected to the seat (100) and meshes with the first gear (202); The column (204) is fixed to the second gear (203).

3. The slag removal device according to claim 2, characterized in that, The number of teeth of the first gear (202) is less than the number of teeth of the second gear (203).

4. The slag removal device according to claim 3, characterized in that, The deflection component includes: The deflection block (301) is rotatably connected to the column (204); A deflection drive is mounted on the column (204) and connected to the deflection block (301). The deflection drive can drive the deflection block (301) to deflect around the column (204).

5. The slag removal device according to claim 4, characterized in that, The deflection drive includes a hydraulic cylinder (302), the support of which is hinged to the column (204), and its telescopic end is hinged to the deflection block (301).

6. The slag removal device according to claim 5, characterized in that, The telescopic component includes: The second motor (401) is fixed to the deflection block (301); The second drive shaft has one end fixedly connected to the output shaft of the second motor (401), and the other end rotatably connected to the deflection block (301); The third gear (402) is sleeved on the outer circumference of the second drive shaft and is fixedly connected to the second drive shaft; The sliding arm (403) passes through the deflection block (301) at one end and extends out of the deflection block (301), and is slidably connected to the deflection block (301); The rack (404) is fixed on the sliding arm (403) and meshes with the third gear (402).

7. The slag removal device according to claim 6, characterized in that, The slag removal component includes: The third motor (501) is fixed to one end of the sliding arm (403); The third drive shaft (502) is fixedly connected at one end to the output shaft of the third motor (501); The first helical gear (503) is fixedly connected to the other end of the third transmission shaft (502); The second helical gear (504) meshes with the first helical gear (503), and the second helical gear (504) is perpendicular to the first helical gear (503). The fourth drive shaft (505) has both ends extending out of the sliding arm (403) and is rotatably connected to the sliding arm (403). The second helical gear (504) is sleeved on the outer periphery of the fourth drive shaft (505) and is fixedly connected to the fourth drive shaft (505). The portion of the fourth drive shaft (505) extending out of the outer periphery of the sliding arm (403) is fixedly connected to the rake plate structure.

8. The slag removal device according to claim 7, characterized in that, The rake plate structure includes: Multiple slag-removing plates (205) are spaced apart around the fourth drive shaft (505), and each of the slag-removing plates (205) is used for refining slag removal; A cleaning brush (206) is fixed on the sliding arm (403) and located within the movement range of the slag removal plate (205) for cleaning the slag removal plate (205).