A rotary kiln that is easy to clean

Abstract

This utility model relates to the technical field of rotary kiln equipment, specifically a rotary kiln that is easy to clean. It includes an H-shaped support platform, with a burner fixedly connected to the upper left side of the H-shaped support platform. A kiln mechanism is shared on the upper sides of two roller supports. A feeding hopper is fixedly connected to the upper right side of the H-shaped support platform, and a collar is fixedly connected to the left end of the feeding hopper. A gear is rotatably connected to the upper middle part of the left end of the feeding hopper. A drive component is fixedly connected to the rear part of the upper end of the collar. This easy-to-clean rotary kiln, through the coordinated use of the drive component, gear ring one, kiln body, gear ring two, gear one, rotating disk, and rotating frame, can not only drive the scraper to scrape away residue on the inner wall of the kiln, but also drive the brush to clean the inner wall of the kiln, allowing the residue to be discharged along with the heated material, ensuring a smooth inner wall of the kiln. This eliminates the need for machine shutdown for processing, reducing wasted time and improving the working efficiency of the device.

Description

Technical Field

[0001] This utility model relates to the technical field of rotary kiln equipment, specifically a rotary kiln that is easy to clean. Background Technology

[0002] A rotary kiln is a type of kiln used for calcining cement (commonly known as a rotary kiln), belonging to the category of building materials equipment. Rotary kilns can be classified into cement kilns, metallurgical and chemical kilns, and lime kilns based on the materials they process. Cement kilns are mainly used for calcining cement clinker, and are divided into two main categories: dry-process cement kilns and wet-process cement kilns. Metallurgical and chemical kilns are mainly used in the metallurgical industry for magnetizing and roasting lean iron ore in steel plants; oxidizing and roasting chromium and nickel iron ore; roasting high-alumina vanadium ore in refractory material plants; roasting clinker and aluminum hydroxide in aluminum plants; and roasting chromite sand and chromite powder in chemical plants. Lime kilns (i.e., active lime kilns) are used for roasting active lime and lightly calcined dolomite for steel plants and ferroalloy plants. Rotary kilns are classified by shape into variable-diameter rotary kilns and standard-diameter rotary kilns. They can also be classified by application into cement rotary kilns, ceramsite rotary kilns, kaolin rotary kilns, lime rotary kilns, etc. Furthermore, they are classified by energy supply efficiency into gas-fired rotary kilns, coal-fired rotary kilns, and mixed-fuel rotary kilns. After prolonged use, materials tend to adhere to the inner wall of the furnace tubes, requiring regular cleaning to maintain cleanliness and prevent impact on material properties. Currently, cleaning the furnace tubes typically involves personnel entering the tubes to scrape them, a process that is extremely inconvenient.

[0003] Chinese patent document CN221147157U discloses a rotary kiln with an inner wall cleaning function, including a kiln support, rollers, a kiln body support, and a rotary kiln body. Rollers are installed on the kiln support, and the kiln body support is also installed on the kiln support. The rotary kiln body is rotatably connected to the kiln body support. By turning on the drive motor, the rotary kiln body rotates and agitates the material, facilitating uniform combustion. Then, through the engagement of an internal gear ring, a reversing gear, and a small gear ring, a scraper rotates to remove residual material from the inner wall of the rotary kiln body. The scraping action automatically cleans the inner wall of the rotary kiln, preventing residual material from affecting subsequent processing. However, the device requires the kiln temperature to drop below 80°C to prevent the refractory material from cracking due to high temperature contact with water. Typically, the machine needs to cool naturally for 12-24 hours after shutdown, which is too time-consuming, and the water spray nozzles may also become clogged. In addition, after prolonged use, the inner wall of the rotary kiln will inevitably wear down, affecting the scraping effect of the scraper on the inner wall residue. Therefore, we propose a rotary kiln that is easy to clean. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides an easy-to-clean rotary kiln, comprising an H-shaped support platform. A burner is fixedly connected to the left side of the upper end of the H-shaped support platform. Two roller seats are fixedly connected to the middle of the upper end of the H-shaped support platform. A kiln mechanism is provided on the upper side of the two roller seats. A sleeve is fixedly connected to the right side of the upper end of the H-shaped support platform. A feeding bin is fixedly connected to the right end of the feeding bin. A collar is fixedly connected to the left end of the feeding bin. A gear is rotatably connected to the upper middle part of the left end of the feeding bin. The outer surface of the gear meshes with the right side of the kiln mechanism. The inner cavity of the collar is rotatably connected to the right side of the kiln mechanism. A driving component is fixedly connected to the rear part of the upper end of the sleeve. The output end of the driving component meshes with the right side of the kiln mechanism.

[0005] In some embodiments, the kiln mechanism includes a kiln body, a toothed ring 1 fixedly connected to the right side of the outer surface of the kiln body, rings fixedly connected to the middle and left sides of the outer surface of the kiln body, a cross-shaped support fixedly connected to the left side of the inner cavity of the kiln body, a cleaning assembly rotatably connected to the inner cavity of the cross-shaped support and the inner cavity of the kiln body, and a toothed ring 2 fixedly connected to the right side of the inner cavity of the kiln body.

[0006] In some embodiments, the outer surface of the first gear ring is fitted onto the inner cavity of the sleeve frame, the outer surface of the first gear ring is meshed with the output end of the drive component, the outer surfaces of the two rings are rotatably connected to the two roller seats respectively, the right side of the outer surface of the kiln body is rotatably connected to the inner cavity of the sleeve ring, the outer surface of the second gear ring is meshed with the first gear, and the left side of the outer surface of the kiln body is rotatably connected to the feeding bin.

[0007] In some embodiments, the cleaning assembly includes two auxiliary rods. The right ends of the two auxiliary rods are fixedly connected to a rotating disk, and the left ends of the two auxiliary rods are fixedly connected to a rotating frame. The left end of the rotating disk and the right end of the rotating frame are both provided with symmetrical mounting slots. The inner cavities of the four mounting slots are rotatably connected to transmission assemblies. The two upper transmission assemblies and the two lower transmission assemblies are symmetrically arranged. The outer surfaces of the four transmission assemblies are meshed with sliding plates. The middle of the side of the two lower sliding plates that are close to each other is fixedly connected to a scraper. The middle of the side of the two upper sliding plates that are close to each other is fixedly connected to a brush. A gear ring is fixedly connected to the middle of the right end of the rotating disk.

[0008] In some embodiments, the outer surfaces of the gear ring are meshed with the gear, the outer surface of the rotating disk is rotatably connected to the right side of the kiln cavity, the left side of the outer surface of the rotating frame is rotatably connected to the inner cavity of the cross seat, and the outer surfaces of the scraper and the brush, which are far apart from each other, are together in contact with the inner cavity of the kiln.

[0009] In some embodiments, both of the two symmetrical transmission groups include a rotating block, and threaded rods are fixedly connected to the outer surfaces of the two symmetrical rotating blocks on the side that is close to each other. Hexagonal prisms are fixedly connected to the outer surfaces of the four threaded rods on the side that is away from the rotating blocks.

[0010] In some embodiments, the outer surface of the hexagonal prism on the same side and the rotating block are rotatably connected to the inner cavity of the mounting groove, and the outer surfaces of the four threaded rods are respectively engaged with the four sliding plates.

[0011] This utility model has at least the following beneficial effects: (1) This utility model has a cleaning group. Through the coordinated use of the drive component, gear ring one, kiln body, gear ring two, gear one, rotating disk and rotating frame, it can not only drive the scraper to scrape off the residue on the inner wall of the kiln, but also drive the brush to clean the inner wall of the kiln, so that the residue is discharged along with the heated material, ensuring that the inner wall of the kiln is smooth, without the need to stop the machine for processing, reducing wasted time and improving the working efficiency of the device.

[0012] (2) In the specific implementation process of this utility model, through the combined use of the mounting groove, transmission group, sliding plate and special wrench, even if the rotary kiln is used for a long time and the inner wall of the kiln is worn, the scraper and brush can always be in contact with the inner wall of the kiln, without the need to replace the entire cleaning group, which reduces costs and improves the practicality of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective; Figure 3 This is a schematic diagram of the kiln mechanism of this utility model; Figure 4 This is a schematic diagram of the kiln mechanism of this utility model from another perspective; Figure 5 This is a schematic diagram of the cleaning assembly of this utility model; Figure 6 This utility model Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the transmission assembly of this utility model.

[0014] In the diagram: 1. Burner; 2. H-shaped support platform; 3. Kiln mechanism; 31. Kiln body; 32. Cleaning assembly; 321. Rotating disc; 322. Mounting slot; 323. Gear ring three; 324. Scraper; 325. Auxiliary rod; 326. Rotating frame; 327. Brush plate; 328. Transmission assembly; 3281. Hexagonal column; 3282. Threaded rod; 3283. Rotating block; 329. Sliding plate; 33. Gear ring one; 34. Ring body; 35. Cross seat frame; 36. Gear ring two; 4. Roller seat; 5. Sleeve frame; 6. Feed bin; 7. Collar ring; 8. Gear one; 9. Drive component. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1:

[0016] Please see Figure 1-7 This utility model provides a technical solution: a rotary kiln that is easy to clean, including an H-shaped support platform 2. A burner 1 is fixedly connected to the upper left side of the H-shaped support platform 2. Two roller seats 4 are fixedly connected to the upper middle part of the H-shaped support platform 2. A kiln mechanism 3 is provided on the upper side of the two roller seats 4. A sleeve 5 is fixedly connected to the upper right side of the H-shaped support platform 2. A feeding bin 6 is fixedly connected to the upper right side of the H-shaped support platform 2. A collar 7 is fixedly connected to the left end of the feeding bin 6. A gear 8 is rotatably connected to the upper middle part of the left end of the feeding bin 6. The outer surface of the gear 8 meshes with the right side of the kiln mechanism 3. The inner cavity of the collar 7 is rotatably connected to the right side of the kiln mechanism 3. A component is fixedly connected to the upper rear part of the sleeve 5. The drive component 9 is connected to the right side of the kiln mechanism 3 through its output end. The material is added into the feeding hopper 6 and enters the right side of the kiln mechanism 3 from the output end of the feeding hopper 6. The flame of the burner 1 on the left side is sprayed to the right side along the inner cavity of the kiln mechanism 3. The drive component 9 consists of a drive motor and a matching gear 2. The drive motor drives the gear 2 to rotate, which in turn drives the kiln mechanism 3 to rotate between the inner cavity of the sleeve 5 and the inner cavity of the collar 7 and the burner 1. The kiln mechanism 3 is supported and assisted to rotate by two roller seats 4. The material is heated in the inner cavity of the kiln mechanism 3 and moves to the position of the burner 1 on the left side as the kiln mechanism 3 rotates.

[0017] The kiln mechanism 3 includes a kiln body 31. A gear ring 33 is fixedly connected to the right side of the outer surface of the kiln body 31. Rings 34 are fixedly connected to the middle and left sides of the outer surface of the kiln body 31. A cross seat 35 is fixedly connected to the left side of the inner cavity of the kiln body 31. A cleaning assembly 32 is rotatably connected to the inner cavity of the cross seat 35 and the inner cavity of the kiln body 31. A gear ring 36 is fixedly connected to the right side of the inner cavity of the kiln body 31. The outer surface of the gear ring 33 is fitted into the inner cavity of the sleeve 5. The outer surface of the gear ring 33 is meshed with the output end of the drive component 9. The outer surfaces of the two rings 34 are rotatably connected to the two roller seats 4 respectively. The right side of the outer surface of the kiln body 31 is rotatably connected to the inner cavity of the sleeve 7. The outer surface of the gear ring 36 is meshed with the gear 8. The left side of the outer surface of the kiln body 31 is rotatably connected to the feeding bin 6.

[0018] First, the cleaning assembly 32 is secured to the outer surface of the output end of the feeding hopper 6 on the right side, allowing rotation between them. As material enters the inner cavity of the kiln body 31 from the output end of the feeding hopper 6 through the cleaning assembly 32, the drive unit 9 rotates the gear ring 33 within the sleeve 5. This rotation of the gear ring 33 causes the kiln body 31 to rotate between the inner cavity of the collar 7 and the burner 1. Simultaneously, the two rings 34 rotate on the upper surface of the outer surface of the roller seats 4. The auxiliary support of the two roller seats 4 increases the stability of the device's rotation. The flame of the burner 1 penetrates through the ten... The material is heated by spraying heat from the center of the cross-shaped support frame 35 into the right side of the kiln body 31. As the kiln body 31 rotates, the material rolls and moves to the left while being heated. Furthermore, the rotation of the kiln body 31 causes the gear ring 36 to drive the gear 8, which in turn drives the cleaning assembly 32 to rotate between the kiln body 31 and the cross-shaped support frame 35, cleaning the material adhering to the kiln body 31 and moving it out along with the heated material. This process eliminates the need for machine shutdown, saves time, and improves the efficiency of the equipment. Example 2:

[0019] Please see Figure 4-7This utility model provides a technical solution: a rotary kiln that is easy to clean. The cleaning assembly 32 includes two auxiliary rods 325. The right ends of the two auxiliary rods 325 are fixedly connected to a rotating disk 321, and the left ends of the two auxiliary rods 325 are fixedly connected to a rotating frame 326. The left end of the rotating disk 321 and the right end of the rotating frame 326 are both provided with symmetrically arranged mounting grooves 322. The inner cavities of the four mounting grooves 322 are rotatably connected to transmission assemblies 328, and the two upper transmission assemblies 328 and the two lower transmission assemblies 328 are symmetrically arranged. The outer surfaces of the four transmission assemblies 328 are all meshed with sliding plates 329. The middle of the side of the two lower sliding plates 329 that are close to each other on the outer surfaces are fixedly connected to scrapers 324, and the middle of the side of the two upper sliding plates 329 that are close to each other on the outer surfaces are fixedly connected to brushes 327. The rotating disk 325 is also included. 1. A gear ring 323 is fixedly connected to the middle of the right end. The outer surface of the gear ring 323 meshes with the gear 8. The outer surface of the rotating disk 321 is rotatably connected to the right side of the inner cavity of the kiln body 31. The left side of the outer surface of the rotating frame 326 is rotatably connected to the inner cavity of the cross seat frame 35. The outer surfaces of the scraper 324 and the brush 327, which are far apart from each other, are in contact with the inner cavity of the kiln body 31. The two symmetrical transmission groups 328 each include a rotating block 3283. The outer surfaces of the two symmetrical rotating blocks 3283, which are close to each other, are fixedly connected with threaded rods 3282. The outer surfaces of the four threaded rods 3282, which are far away from the rotating blocks 3283, are fixedly connected with hexagonal columns 3281. The outer surface of the hexagonal column 3281 on the same side and the rotating block 3283 are rotatably connected to the inner cavity of the mounting groove 322. The outer surfaces of the four threaded rods 3282 are respectively meshed with four sliding plates 329.

[0020] In detail, when gear ring 2 36 drives gear 1 8 to rotate, it will drive gear ring 3 323 to rotate. Through the rotation of gear ring 3 323 and the cooperation of the two auxiliary rods 325, the rotating disk 321 and the rotating frame 326 can be driven to rotate together. This causes the rotating disk 321 to rotate on the right side of the inner cavity of the kiln body 31, the inner cavity of gear ring 3 323 to rotate on the outer surface of the output end of the feed bin 6, and the left side of the outer surface of the rotating frame 326 to rotate in the inner cavity of the cross seat 35. This, in turn, drives the brush plate 327 on the upper side and the scraper plate 324 on the lower side to rotate along the inner wall of the kiln body 31. The scraper plate 324 scrapes away the residue that is difficult to remove from the inner wall of the kiln body 31, and the brush plate 327 cleans the residue on the inner wall of the kiln body 31, ensuring that the inner wall is smooth. In addition, the kiln body After prolonged use, the inner wall of the kiln body 31 will inevitably experience wear. A special wrench can be used to simultaneously rotate the two hexagonal posts 3281 located on the lower side. This causes the hexagonal posts 3281 to drive the threaded rod 3282 and the rotating block 3283 to rotate within the mounting groove 322. This causes the two sliding plates 329 located on the lower side to move the scraper 324 vertically, ensuring that the scraper 324 remains in contact with the inner wall of the kiln body 31. Similarly, by simultaneously rotating the two hexagonal posts 3281 located on the upper side with a special wrench, the two sliding plates 329 on the upper side drive the brush plate 327 vertically, ensuring that the brush plate 327 remains in contact with the inner wall of the kiln body 31. This eliminates the need to replace the entire cleaning assembly 32, thus reducing costs.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary kiln that is easy to clean, comprising an H-shaped support platform (2), characterized in that: A burner (1) is fixedly connected to the upper left side of the H-shaped support platform (2). Two roller seats (4) are fixedly connected to the upper middle part of the H-shaped support platform (2). A kiln mechanism (3) is provided on the upper side of the two roller seats (4). A sleeve (5) is fixedly connected to the upper right side of the H-shaped support platform (2). A feeding bin (6) is fixedly connected to the upper right side of the H-shaped support platform (2). A collar (7) is fixedly connected to the left end of the feeding bin (6). A gear (8) is rotatably connected to the upper middle part of the left end of the feeding bin (6). The outer surface of the gear (8) meshes with the right side of the kiln mechanism (3). The inner cavity of the collar (7) rotatably connects with the right side of the kiln mechanism (3). A drive component (9) is fixedly connected to the upper rear part of the sleeve (5). The output end of the drive component (9) meshes with the right side of the kiln mechanism (3).

2. The easy-to-clean rotary kiln according to claim 1, characterized in that: The kiln mechanism (3) includes a kiln body (31), a toothed ring (33) is fixedly connected to the right side of the outer surface of the kiln body (31), a ring (34) is fixedly connected to the middle and left side of the outer surface of the kiln body (31), a cross seat (35) is fixedly connected to the left side of the inner cavity of the kiln body (31), a cleaning group (32) is rotatably connected to the inner cavity of the cross seat (35) and the inner cavity of the kiln body (31), and a toothed ring (36) is fixedly connected to the right side of the inner cavity of the kiln body (31).

3. The easy-to-clean rotary kiln according to claim 2, characterized in that: The outer surface of the first gear ring (33) is fitted into the inner cavity of the sleeve frame (5). The outer surface of the first gear ring (33) is meshed with the output end of the drive component (9). The outer surfaces of the two ring bodies (34) are rotatably connected to the two roller seats (4). The right side of the outer surface of the kiln body (31) is rotatably connected to the inner cavity of the sleeve ring (7). The outer surface of the second gear ring (36) is meshed with the first gear (8). The left side of the outer surface of the kiln body (31) is rotatably connected to the feeding bin (6).

4. The easy-to-clean rotary kiln according to claim 2, characterized in that: The cleaning assembly (32) includes two auxiliary rods (325). A rotating disk (321) is fixedly connected to the right end of each of the two auxiliary rods (325), and a rotating frame (326) is fixedly connected to the left end of each of the two auxiliary rods (325). Symmetrical mounting slots (322) are provided on the left end of the rotating disk (321) and the right end of the rotating frame (326). Transmission assemblies (328) are rotatably connected to the inner cavities of all four mounting slots (322), and the two upper transmission assemblies (328) are... 28) Symmetrically arranged with the two transmission groups (328) on the lower side, the outer surfaces of the four transmission groups (328) are all meshed with sliding plates (329), the outer surfaces of the two sliding plates (329) on the lower side are jointly fixedly connected with scrapers (324) on the middle of the side that are close to each other, the outer surfaces of the two sliding plates (329) on the upper side are jointly fixedly connected with brush plates (327) on the middle of the side that are close to each other, and the right end of the rotating disk (321) is fixedly connected with a gear ring three (323).

5. The easy-to-clean rotary kiln according to claim 4, characterized in that: The outer surface of the gear ring three (323) meshes with the gear one (8), the outer surface of the rotating disk (321) is rotatably connected to the right side of the inner cavity of the kiln body (31), the left side of the outer surface of the rotating frame (326) is rotatably connected to the inner cavity of the cross seat frame (35), and the outer surfaces of the scraper (324) and the brush (327) are mutually away from each other and are in contact with the inner cavity of the kiln body (31).

6. The easy-to-clean rotary kiln according to claim 4, characterized in that: The two symmetrical transmission groups (328) each include a rotating block (3283). The outer surfaces of the two symmetrical rotating blocks (3283) are fixedly connected to threaded rods (3282) on the side that is close to each other. The outer surfaces of the four threaded rods (3282) are fixedly connected to hexagonal prisms (3281) on the side that is away from the rotating blocks (3283).

7. The easy-to-clean rotary kiln according to claim 6, characterized in that: The outer surface of the hexagonal column (3281) on the same side and the rotating block (3283) are rotatably connected to the inner cavity of the mounting groove (322), and the outer surfaces of the four threaded rods (3282) are respectively engaged with the four sliding plates (329).

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