A slagging machine for the kiln tail of an incineration rotary kiln

Abstract

The application discloses a slag remover for a rotary kiln tail of incineration, and aims at the problem that the scraping radius of the scraper mechanism of the conventional slag remover is usually fixed, and the irregular inner wall structure of the kiln tail hinders the scraping of the slag by the scraper in the slag remover. The application provides the following scheme, which comprises a rotary kiln body, a telescopic rod and an outer cylindrical shell. The right end of the telescopic rod is fixedly connected with the left side of the outer cylindrical shell, and a same fixed shaft is fixedly installed between the left and right inner walls of the outer cylindrical shell. The center plate and the plurality of side plates are driven to move rightwards by the hydraulic rod, the side plates drive the L-shaped plates to move rightwards by cooperation of the square plates and the baffle plates, the L-shaped plates drive the scrapers to swing downwards by cooperation with the connecting plates, so that the angles of the plurality of scrapers are synchronously adjusted, and the adjustment of the scraping radius of the scrapers is cooperated, so that the scrapers can be closely combined with the inner wall of the kiln tail, the irregular inner wall of the kiln tail is prevented from hindering the scraping of the slag, and the scraping effect on the slag is improved.

Description

Technical Field

[0001] This invention relates to the field of slag removal technology at the kiln tail of rotary kilns, and particularly to a slag removal machine at the kiln tail of an incineration rotary kiln. Background Technology

[0002] A rotary kiln is an important piece of industrial equipment, mainly used for high-temperature processing of various materials, such as ores, mineral powders, chemical raw materials, cement raw materials, and limestone. It heats materials at high temperatures by rotating them to achieve processes such as heat treatment, sintering, roasting, and reduction.

[0003] A rotary kiln tail slag remover is a specialized device for handling slag at the tail of a rotary kiln. It primarily cleans and removes slag accumulated on the kiln's inner wall, ensuring the kiln's normal operation and production efficiency. During production, rotary kilns generate slag and solid residues, especially at the kiln tail. The main function of the slag remover is to periodically or continuously clean this slag from the kiln tail's inner wall, preventing its accumulation and impact on kiln operation. Modern slag removers are typically automated or semi-automated, capable of automatically performing cleaning operations according to preset programs and parameters. They usually employ special mechanical structures and scraper designs to effectively scrape slag from the kiln wall and transport it to a suitable collection device or treatment system for further processing or disposal.

[0004] Existing rotary kiln tail sections typically taper gradually in a sloping shape. This design helps reduce material residue at the kiln tail while ensuring efficient material discharge. The gradually narrowing shape not only improves material flowability and kiln operational stability but also reduces energy consumption and operational risks during discharge. However, the scraping radius of conventional slag removers is usually fixed. This irregular kiln tail inner wall structure hinders the scraping of slag by the scrapers in the slag remover. Therefore, we propose a rotary kiln tail slag remover to solve this problem. Summary of the Invention

[0005] Technical problems to be solved:

[0006] To address the shortcomings of existing technologies, this invention provides a slag removal machine for the tail of a rotary kiln incineration plant. The machine features an adjustable scraper with a scraping radius and an adjustable angle, allowing it to fit closely against the irregular inner wall of the kiln tail. This prevents the progressively sloping kiln tail from hindering the scraper's removal of slag, thus solving the technical problems mentioned in the background section.

[0007] Technical solution:

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A rotary kiln tail ash removal machine includes a rotary kiln body, a telescopic rod, and an outer shell. The right end of the telescopic rod is rotatably connected to the left side of the outer shell. A fixed shaft is fixedly installed between the inner walls of the left and right sides of the outer shell. A receiving circular plate is fixedly sleeved on the outer side of the fixed shaft. Multiple vertical grooves are opened on the outer side of the receiving circular plate. A vertical plate is vertically slidably installed in the vertical groove. A vertical connecting hole is opened on one side of the vertical groove. A round rod is fixedly installed on one side of the vertical plate. A rotating plate is rotatably sleeved on the outer side of the fixed shaft. Multiple arc-shaped holes are opened on one side of the rotating plate. The round rod is slidably installed in the corresponding arc-shaped holes. A horizontal hole is opened on one side of the vertical plate. An L-shaped plate is slidably installed in the horizontal hole. A scraper is rotatably installed at one end of the vertical plate. An inclined connecting plate is rotatably installed on one side of the L-shaped plate. The connecting plate is rotatably connected to the corresponding scraper.

[0010] In one possible implementation, a first motor is fixedly installed on the inner left side of the outer shell, a worm is fixedly installed on the output shaft of the first motor, a rotating cylinder is rotatably sleeved on the outer side of the fixed shaft, a worm wheel is fixedly sleeved on the outer side of the rotating cylinder, and the worm meshes with the worm wheel.

[0011] In one possible implementation, a support shell is fixedly installed on one side of the outer shell, and a rotating hole is opened in the center of the support shell, and the rotating cylinder is rotatably installed in the rotating hole.

[0012] In one possible implementation, a hydraulic rod is fixedly installed on the right side of the outer shell, a center plate is fixedly installed at one end of the hydraulic rod, a plurality of side plates are fixedly sleeved on the outer side of the center plate, a square plate is fixedly installed on one side of the side plate, a rectangular hole is opened on one side of the L-shaped plate, the square plate is slidably installed in the corresponding rectangular hole, and two baffles are fixedly sleeved on the outer side of the square plate, with the two baffles on the same square plate located on the two sides of the corresponding L-shaped plate respectively.

[0013] In one possible implementation, the scraper has a central groove and an edge groove at its bottom, and the same short shaft is fixedly installed between the inner walls of the front and rear sides of the central groove and the edge groove. A triangular plate is fixedly installed on the top of the vertical plate, and the triangular plate and the connecting plate are respectively rotatably sleeved on the outside of the corresponding short shaft.

[0014] In one possible implementation, a drive cylinder is fixedly installed on one side of the outer shell, the drive cylinder is rotatably sleeved on the outside of the telescopic rod, a gear ring is fixedly installed on the outside of the drive cylinder, an outer frame is fixedly sleeved on the outside of the telescopic rod, a drive motor is fixedly installed on the inner wall of one side of the outer frame, and a gear is fixedly installed on the output shaft of the drive motor, the gear meshing with the gear ring.

[0015] In one possible implementation, the rotary kiln body includes a kiln tail, which is in the shape of a progressively sloping ramp.

[0016] In one possible implementation, a support cylinder is fixedly sleeved on the outer side of the telescopic rod, and two hanging plates are fixedly installed on the outer side of the support cylinder. The same waste discharge frame is fixedly installed at the bottom of the two hanging plates. The top and right side of the waste discharge frame are open, and a discharge port is opened at the bottom of the waste discharge frame. An auger is rotatably installed on one inner wall of the waste discharge frame.

[0017] In one possible implementation, a second motor is fixedly installed on one side of the waste discharge frame, the output shaft of the second motor is fixedly connected to one end of the auger, a protective shell is fixedly fitted on the outside of the second motor, and an installation plate is fixedly installed on one end of the telescopic rod. Beneficial effects

[0018] 1. The first motor drives the rotating drum to rotate, which in turn drives the rotating plate to rotate. The rotating plate, through the cooperation of the arc-shaped hole and the round rod, drives multiple vertical plates to move away from the fixed axis, thereby driving multiple scrapers to move closer to the inner wall of the rotary kiln body, expanding the scraping radius of the scrapers, and thus gradually scraping away the slag layer from the inside to the outside, completing the scraping with minimal force, reducing overall power consumption and mechanical wear.

[0019] 2. The hydraulic rod drives the center plate and multiple side plates to move to the right together. The side plates, through the cooperation of the square plate and the baffle, drive the L-shaped plate to move to the right. The L-shaped plate, through the cooperation of the connecting plate, drives the scraper to swing downward, thereby simultaneously adjusting the angle of multiple scrapers. In conjunction with the adjustment of the scraping radius of the scraper, the scraper can fit tightly against the inner wall of the kiln tail, preventing the irregular inner wall of the kiln tail from hindering the scraping of slag and improving the scraping effect of slag. Attached Figure Description

[0020] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] Figure 1 This is a cross-sectional structural diagram of the rotary kiln body of a rotary kiln tail ash removal machine for incineration proposed in this invention.

[0022] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0023] Figure 3 for Figure 2 A magnified view of part B in the middle section;

[0024] Figure 4This is a three-dimensional structural diagram of the telescopic rod and outer shell of a rotary kiln tail ash removal machine proposed in this invention.

[0025] Figure 5 This is a three-dimensional structural diagram of the circular plate for receiving slag removal in a rotary kiln for incineration, as proposed in this invention.

[0026] Figure 6 This is a three-dimensional structural diagram of the side plate of the slag removal machine at the tail of an incineration rotary kiln proposed in this invention.

[0027] Figure 7 This is a schematic diagram of the cross-sectional structure of the outer shell of a rotary kiln tail ash removal machine proposed in this invention.

[0028] Figure 8 for Figure 1 A magnified view of part C in the middle.

[0029] Legend: 1. Rotary kiln body; 2. Telescopic rod; 3. Outer shell; 4. Fixed shaft; 5. Storage plate; 6. Vertical groove; 7. Vertical plate; 8. Vertical connecting hole; 9. Round rod; 10. Rotating plate; 11. Arc-shaped hole; 12. L-shaped plate; 13. Scraper; 14. Connecting plate; 15. First motor; 16. Worm gear; 17. Rotary cylinder; 18. Worm wheel; 19. Support shell; 20. Hydraulic rod; 21. Side plate; 22. Square plate; 23. Baffle; 24. Rectangular hole; 25. Short shaft; 26. Triangular plate; 27. Drive cylinder; 28. Gear ring; 29. ​​External frame; 30. Drive motor; 31. Gear; 32. Kiln tail; 33. Support cylinder; 34. Hanging plate; 35. Waste discharge frame; 36. Screwdriver; 37. Second motor; 38. Mounting plate; 39. Waste discharge port. Detailed Implementation

[0030] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0031] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows: Example 1

[0036] Reference Figure 1-8A rotary kiln tail ash removal machine includes a rotary kiln body 1, a telescopic rod 2, and an outer shell 3. The right end of the telescopic rod 2 is rotatably connected to the left side of the outer shell 3. A fixed shaft 4 is fixedly installed between the inner walls of the left and right sides of the outer shell 3. A receiving circular plate 5 is fixedly sleeved on the outside of the fixed shaft 4. Multiple vertical grooves 6 are opened on the outside of the receiving circular plate 5. A vertical plate 7 is vertically slidably installed in the vertical grooves 6. A vertical connecting hole 8 is opened on one side of the vertical grooves 6. A round rod 9 is fixedly installed on one side of the vertical plate 7. A rotating plate 10 is rotatably sleeved on the outside of the fixed shaft 4. Multiple arc-shaped holes 11 are opened on one side of the rotating plate 10. The round rod 9 is slidably installed in the corresponding arc-shaped holes 11. A horizontal hole is opened on one side of the vertical plate 7. An L-shaped plate 12 is slidably installed in the horizontal hole. A scraper 13 is rotatably installed on one end of the vertical plate 7. An inclined connecting plate 14 is rotatably installed on one side of the L-shaped plate 12. The connecting plate 14 is rotatably connected to the corresponding scraper 13.

[0037] See Figure 3 As shown in Figures 1 and 7, a first motor 15 is fixedly installed on the inner left side of the outer cylindrical shell 3. A worm gear 16 is fixedly installed on the output shaft of the first motor 15. A rotating cylinder 17 is rotatably sleeved on the outer side of the fixed shaft 4. A worm wheel 18 is fixedly sleeved on the outer side of the rotating cylinder 17. The worm gear 16 meshes with the worm wheel 18. Through the cooperation of the worm gear 16 and the worm wheel 18, the rotating cylinder 17 is driven to rotate, thereby driving the rotating plate 10 to rotate.

[0038] See Figure 1 , 4 A support shell 19 is fixedly installed on one side of the outer cylindrical shell 3 shown in Figures 8 and 9. A rotating hole is opened in the center of the support shell 19, and the rotating cylinder 17 is rotatably installed in the rotating hole.

[0039] See Figure 2 and 6 As shown, a hydraulic rod 20 is fixedly installed on the right side of the outer cylindrical shell 3. A center plate is fixedly installed at one end of the hydraulic rod 20. Multiple side plates 21 are fixedly sleeved on the outside of the center plate. A square plate 22 is fixedly installed on one side of the side plate 21. A rectangular hole 24 is opened on one side of the L-shaped plate 12. The square plate 22 is slidably installed in the corresponding rectangular hole 24. Two baffles 23 are fixedly sleeved on the outside of the square plate 22. The two baffles 23 located on the same square plate 22 are respectively located on both sides of the corresponding L-shaped plate 12.

[0040] See Figure 2 As shown, the scraper 13 has a central groove and an edge groove at its bottom. The same short shaft 25 is fixedly installed between the inner walls of the front and rear sides of the central groove and the edge groove. A triangular plate 26 is fixedly installed on the top of the vertical plate 7. The triangular plate 26 and the connecting plate 14 are respectively rotatably sleeved on the outside of the corresponding short shaft 25.

[0041] See Figure 2 , 5As shown in Figures 7 and 8, a drive cylinder 27 is fixedly installed on one side of the outer cylindrical shell 3. The drive cylinder 27 is rotatably sleeved on the outside of the telescopic rod 2. A gear ring 28 is fixedly installed on the outside of the drive cylinder 27. An outer frame 29 is fixedly sleeved on the outside of the telescopic rod 2. A drive motor 30 is fixedly installed on the inner wall of one side of the outer frame 29. A gear 31 is fixedly installed on the output shaft of the drive motor 30. The gear 31 meshes with the gear ring 28.

[0042] See Figure 1 As shown, the rotary kiln body 1 includes a kiln tail 32, which has a progressive sloping shape.

[0043] It should be noted that in industrial production, especially in large rotary kilns used in cement, lime, ore roasting, and other chemical and metallurgical processes, a progressively sloping kiln tail design is often adopted. The sloping shape can more effectively push the material towards the discharge port, reducing the amount of residual material at the kiln tail.

[0044] The working principle of this embodiment is as follows: The outer shell 3 is gradually extended into the rotary kiln body 1 by the telescopic rod 2. The first motor 15 is started. The first motor 15 drives the rotating drum 17 to rotate through the cooperation of the worm gear 16 and the worm wheel 18, thereby driving the rotating plate 10 to rotate. The rotating plate 10 drives multiple vertical plates 7 to move away from the fixed axis 4 through the cooperation of the arc-shaped hole 11 and the round rod 9, expanding the scraping radius of the scraper 13. The hydraulic rod 20 can also be activated. The hydraulic rod 20 drives the center plate and multiple side plates 21 to move to the right together. The side plates 21 drive the L-shaped plate 12 to move to the right through the cooperation of the square plate 22 and the baffle 23. Plate 12, in cooperation with connecting plate 14, drives scraper 13 to swing downward, thereby simultaneously adjusting the angle of multiple scrapers 13. Drive motor 30, through the cooperation of gear 31 and gear ring 28, drives drive cylinder 27 to rotate, thereby driving outer shell 3 to rotate, and then driving multiple scrapers 13 to move in a circle along the slag layer. The scraper 13, whose radius can be expanded, gradually scrapes the slag layer from the inside to the outside, completing the scraping with minimal force, reducing overall power consumption and mechanical wear. Moreover, the radius of scraper 13 gradually expands until it fits against the inner wall of kiln tail 32, preventing the irregular inner wall of kiln tail 32 from hindering the scraping of slag. Example 2

[0045] See Figure 1 , 4As shown in Figures 1 and 8, this embodiment is an improvement based on Embodiment 1. In this embodiment, a support cylinder 33 is fixedly sleeved on the outer side of the telescopic rod 2. Two hanging plates 34 are fixedly installed on the outer side of the support cylinder 33. The same waste discharge frame 35 is fixedly installed at the bottom of the two hanging plates 34. The top and right side of the waste discharge frame 35 are open. A discharge port 39 is opened at the bottom of the waste discharge frame 35. An auger 36 is rotatably installed on one side of the inner wall of the waste discharge frame 35. The waste discharge frame 35 is supported by the cooperation of the support cylinder 33 and the hanging plates. The auger 36, the waste discharge frame 35 and the discharge port 39 are used to continuously clean the scraped slag.

[0046] A second motor 37 is fixedly installed on one side of the waste discharge frame 35. The output shaft of the second motor 37 is fixedly connected to one end of the auger 36. A protective shell is fixedly fitted on the outside of the second motor 37. An installation plate 38 is fixedly installed on one end of the telescopic rod 2. The protective shell is designed to prevent falling stones from damaging the second motor 37 when it extends into the kiln tail 32 for operation.

[0047] The working principle of this embodiment is as follows: the second motor 37 is started, and the output shaft of the second motor 37 drives the auger 36 to rotate. The auger 36, in cooperation with the waste discharge frame, transports the slag scraped off by the scraper 13 to the discharge port 39, and then discharges it through the discharge port 39, thereby realizing the automatic discharge function of waste slag.

[0048] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A slag removal machine for the tail of a rotary kiln for incineration, comprising a rotary kiln body (1), characterized in that, Includes a telescopic rod (2) and an outer circular shell (3). The right end of the telescopic rod (2) is rotatably connected to the left side of the outer circular shell (3). The same fixed shaft (4) is fixedly installed between the inner walls of the left and right sides of the outer circular shell (3). A storage circular plate (5) is fixedly sleeved on the outside of the fixed shaft (4). Multiple vertical grooves (6) are opened on the outside of the storage circular plate (5). A vertical plate (7) is vertically slidably installed in the vertical groove (6). A vertical connecting hole (8) is opened on one side of the vertical groove (6). A circular rod is fixedly installed on one side of the vertical plate (7). 9) A rotating plate (10) is rotatably sleeved on the outside of the fixed shaft (4). A plurality of arc-shaped holes (11) are opened on one side of the rotating plate (10). The round rod (9) is slidably installed in the corresponding arc-shaped holes (11). A horizontal hole is opened on one side of the vertical plate (7). An L-shaped plate (12) is slidably installed in the horizontal hole. A scraper (13) is rotatably installed at one end of the vertical plate (7). An inclined connecting plate (14) is rotatably installed on one side of the L-shaped plate (12). The connecting plate (14) is rotatably connected to the corresponding scraper (13). The outer shell (3) has a first motor (15) fixedly installed on the inner left side wall. The output shaft of the first motor (15) has a worm (16) fixedly installed on it. The outer side of the fixed shaft (4) is fitted with a rotating cylinder (17). The outer side of the rotating cylinder (17) is fitted with a worm wheel (18). The worm (16) meshes with the worm wheel (18). The first motor (15) drives the rotating cylinder (17) to rotate through the cooperation of the worm (16) and the worm wheel (18), thereby driving the rotating plate (10) to rotate. A hydraulic rod (20) is fixedly installed on the right side of the outer shell (3). A center plate is fixedly installed at one end of the hydraulic rod (20). Multiple side plates (21) are fixedly sleeved on the outside of the center plate. A square plate (22) is fixedly installed on one side of the side plate (21). A rectangular hole (24) is opened on one side of the L-shaped plate (12). The square plate (22) is slidably installed in the corresponding rectangular hole (24). Two baffles (23) are fixedly sleeved on the outside of the square plate (22). The two baffles (23) located on the same square plate (22) are respectively located on both sides of the corresponding L-shaped plate (12). The scraper (13) has a central groove and an edge groove at its bottom. The same short shaft (25) is fixedly installed between the inner walls of the front and rear sides of the central groove and the edge groove. A triangular plate (26) is fixedly installed on the top of the vertical plate (7). The triangular plate (26) and the connecting plate (14) are respectively rotatably sleeved on the outside of the corresponding short shaft (25). A drive cylinder (27) is fixedly installed on one side of the outer shell (3). The drive cylinder (27) is rotatably sleeved on the outside of the telescopic rod (2). A gear ring (28) is fixedly installed on the outside of the drive cylinder (27). An external frame (29) is fixedly sleeved on the outside of the telescopic rod (2). A drive motor (30) is fixedly installed on the inner wall of one side of the external frame (29). A gear (31) is fixedly installed on the output shaft of the drive motor (30). The gear (31) meshes with the gear ring (28). The drive motor (30) drives the drive cylinder (27) to rotate through the cooperation of the gear (31) and the gear ring (28), thereby driving the outer shell (3) to rotate.

2. The slag removal machine at the tail of a rotary kiln as described in claim 1, characterized in that: A support shell (19) is fixedly installed on one side of the outer shell (3). A rotating hole is opened in the center of the support shell (19), and the rotating cylinder (17) is rotatably installed in the rotating hole.

3. The slag removal machine at the tail of a rotary kiln as described in claim 1, characterized in that: The rotary kiln body (1) includes a kiln tail (32), which has a progressive slope shape.

4. The slag removal machine at the tail of a rotary kiln as described in claim 1, characterized in that: The telescopic rod (2) is fixedly fitted with a support cylinder (33), and two hanging plates (34) are fixedly installed on the outside of the support cylinder (33). The bottom of the two hanging plates (34) is fixedly installed with the same waste discharge frame (35). The top and right side of the waste discharge frame (35) are open. The bottom of the waste discharge frame (35) is provided with a discharge port (39). An auger (36) is rotatably installed on one side of the inner wall of the waste discharge frame (35).

5. The slag removal machine at the tail of a rotary kiln as described in claim 4, characterized in that: A second motor (37) is fixedly installed on one side of the waste discharge frame (35). The output shaft of the second motor (37) is fixedly connected to one end of the auger (36). A protective shell is fixedly fitted on the outside of the second motor (37). An installation plate (38) is fixedly installed on one end of the telescopic rod (2).

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