Lime kiln

Abstract

The invention relates to a lime kiln, and relates to the technical field of kilns, the lime kiln comprises a kiln body, a plurality of assembly box bodies are fixedly connected in the kiln body, guide rods are fixedly connected to the two sides in the assembly box bodies, high-alumina bricks are slidably connected to the guide rods, and fixing bricks used for limiting the positions of the high-alumina bricks are arranged at the centers in the assembly box bodies; a cavity is formed in the fixed brick block, a through hole communicated with the cavity is formed in the upper end of the fixed brick block, a blocking assembly used for blocking the through hole is arranged in the through hole, the fixed brick block comprises a fixed part and two movable parts, the movable parts are slidably connected to the fixed part, a sliding inclined block is slidably connected to the interior of the cavity, and a connecting rod is fixedly connected to the movable parts; the end, away from the movable part, of the connecting rod is fixedly connected with an abutting inclined block, and a moving assembly used for driving the sliding inclined block to move is arranged in the cavity. The lime kiln has the effects of improving the protection effect of the inner wall of the lime kiln and improving the maintenance convenience of a protection mechanism in the kiln.

Description

Technical Field

[0001] This application relates to the technical field of kilns, and in particular to a lime kiln. Background Technology

[0002] The lime kiln is the core equipment in the lime production process, its main function being to produce quicklime by calcining limestone and other raw materials at high temperatures. During operation, the kiln's inner wall is constantly exposed to harsh environments such as high temperatures, material erosion, and chemical corrosion, making it highly susceptible to wear, spalling, and even cracking. This not only shortens the kiln's lifespan but also affects calcination uniformity, reduces lime product quality, and increases production energy consumption and maintenance costs. Therefore, effective protection of the lime kiln's inner wall is one of the key technologies for ensuring stable and efficient lime production.

[0003] Currently, the most widely used technology for protecting the inner walls of lime kilns is the use of clay bricks as a protective layer. This utilizes the good high-temperature resistance and certain wear resistance of clay bricks to protect the kiln's inner wall substrate. In practice, clay bricks are typically fixed to the kiln's inner wall surface through a masonry process, forming a continuous protective layer. However, this method has many intractable drawbacks in practical application, severely limiting its protective effect and application value.

[0004] First, clay bricks have poor stability after being laid. On the one hand, clay bricks themselves are brittle, and under the sudden temperature changes during kiln start-up and shutdown, they are prone to thermal expansion and contraction deformation, leading to increased gaps between bricks and even cracking and loosening, causing cleaning problems inside the kiln. On the other hand, during lime production, the tumbling and impact of materials inside the kiln exerts continuous mechanical impact on the clay brick protective layer. Over time, this further exacerbates the risk of loosening and falling off the clay bricks. Once the protective layer is partially damaged, if not treated promptly, the damage will spread rapidly, directly exposing the kiln's inner wall substrate to the harsh environment, accelerating kiln damage. Furthermore, damaged kiln lining layers are difficult to clean in a timely manner and easily mix with the materials inside the kiln, affecting sintering quality. Therefore, a more stable lime kiln with an easily maintainable inner wall protection mechanism is needed. Summary of the Invention

[0005] In order to improve the protective effect of the inner wall of the lime kiln and improve the convenience of maintenance of the protective mechanism inside the kiln, this application provides a lime kiln.

[0006] The lime kiln provided in this application adopts the following technical solution: A lime kiln includes a kiln body with multiple assembly boxes fixedly connected inside. These assembly boxes are arranged around the axis of the kiln body. Guide rods are fixedly connected to both sides of each assembly box, and high-alumina bricks are slidably connected to the guide rods. A fixing brick is located at the center of each assembly box to restrict the position of the high-alumina bricks. A cavity is formed within the fixing brick, and a through hole communicating with the cavity is formed at the upper end of the fixing brick. A sealing component is provided within the through hole to seal the through hole. The fixed brick includes a fixed part and two movable parts. The cavity and the through hole are both placed on the fixed part. The fixed part is placed between the two movable parts. The movable parts are slidably connected to the fixed part. A sliding inclined block is slidably connected in the cavity. A connecting rod is fixedly connected to the movable part. An abutting inclined block is fixedly connected to the end of the connecting rod away from the movable part. When the abutting inclined block abuts against the sliding inclined block, the movable part moves towards the high-alumina brick. A moving component for driving the sliding inclined block to move is provided in the cavity.

[0007] By adopting the above technical solution, the inner wall of the kiln body can be protected by high-alumina bricks and fixed bricks in multiple prefabricated boxes, which can significantly improve the protective effect of the lime kiln inner wall compared with the construction of clay bricks. At the same time, when it is necessary to replace the worn high-alumina bricks, the sealing component can be adjusted to cancel the connection, and the sliding wedge can be moved by the moving component to cancel the movement of the sliding wedge with the abutting wedge, thereby canceling the fixation of the fixed brick in the prefabricated box. Then, by removing the fixed brick from the prefabricated box and then sliding the fixing block off the guide rod, the disassembly of the fixed brick and high-alumina brick in the prefabricated box can be completed quickly, thereby improving the convenience of maintenance of the protective mechanism inside the kiln.

[0008] Optionally, the moving component includes a fixed lead screw rotatably connected within the cavity, with guide rods on both sides of the fixed lead screw. The length direction of the guide rods is parallel to the length direction of the fixed lead screw, and the guide rods are fixedly connected within the cavity. A sliding wedge passes through and is slidably connected to the guide rods, and the sliding wedge is threadedly connected to the fixed lead screw.

[0009] By adopting the above technical solution, the position of the movable part can be adjusted by rotating the fixed lead screw, which in turn drives the sliding inclined block to slide, so that the sliding inclined block abuts against the abutting inclined block.

[0010] Optionally, the sealing assembly includes a sealing cover plate, and a sealing block is fixedly connected to the lower end of the sealing cover plate, the sealing block being threadedly connected inside the through hole.

[0011] By adopting the above technical solution, the sealing cover plate can be removed from the through hole by rotating it.

[0012] Optionally, the upper end of the sealing cover plate is provided with an inner corner groove.

[0013] By adopting the above technical solution, the sealing cover plate can be rotated through the inner corner groove using external tools.

[0014] Optionally, the high-alumina brick has a groove on the side near the fixed brick, a dividing block is provided between two adjacent high-alumina bricks, and a separation component is provided on the guide rod for moving the dividing block.

[0015] By adopting the above technical solution, when two adjacent high-alumina bricks stick together due to sintering, they can be separated by a dividing block. Optionally, the separation assembly includes a slide rod that passes through and is slidably connected to the guide rod, a force-bearing rod that is fixedly connected to the guide rod, a sliding hole that is provided on the guide rod, the dividing block that passes through the sliding hole and is fixedly connected to the slide rod, a threaded cylinder that is fixedly connected in the groove, a lifting rod that is threadedly connected to the threaded cylinder, and the lifting rod abutting against the force-bearing rod.

[0016] By adopting the above technical solution, the lifting rod can be rotated to slide inside the threaded cylinder, thereby causing the lifting rod to move along the threaded cylinder towards the force-bearing rod, which in turn causes the force-bearing rod to drive the dividing block to separate two adjacent high-alumina bricks.

[0017] Optionally, a hidden groove is provided on the side wall of the high-alumina brick, and the dividing block is placed in the hidden groove.

[0018] By adopting the above technical solution, the segmented blocks can be hidden through the hidden slot.

[0019] Optionally, an adjusting nut is fixedly connected to the lifting rod.

[0020] By adopting the above technical solution, the lifting rod can be rotated by using external tools such as external sockets to rotate the adjusting nut.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The sliding inclined block can be moved by the moving component to cancel its movement with the abutting inclined block, thereby canceling the fixing of the fixed brick in the assembly box. Then, by removing the fixed brick from the assembly box and then sliding the fixed assembly block off the guide rod, the fixed brick and high alumina brick can be quickly disassembled in the assembly box, thereby improving the convenience of maintenance of the protective mechanism inside the kiln. 2. The position of the movable part can be adjusted by rotating the fixed lead screw, which in turn drives the sliding inclined block to slide, so that the sliding inclined block abuts against the abutting inclined block; 3. When two adjacent high-alumina bricks stick together due to sintering, they can be separated by dividing blocks. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a structural schematic diagram of the assembly box according to an embodiment of this application; Figure 3 yes Figure 2 A magnified view of part A in the middle; Figure 4 This is a schematic diagram of the guide rod structure according to an embodiment of this application; In the diagram, 1. Kiln body; 2. Assembly box; 3. Guide rod; 31. Sliding hole; 4. High-alumina brick; 41. Groove; 42. Hidden groove; 5. Fixed brick; 51. Fixed part; 511. Cavity; 512. Through hole; 52. Movable part; 6. Sliding inclined block; 7. Abutting inclined block; 8. Moving component; 81. Fixed screw; 82. Guide column; 9. Sealing component; 91. Sealing cover plate; 911. Inner corner groove; 92. Sealing block; 10. Dividing block; 11. Separation component; 111. Sliding rod; 112. Force rod; 113. Threaded cylinder; 114. Adjusting nut; 115. Lifting rod; 12. Connecting rod. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.

[0024] An embodiment of this application is: a lime kiln, referring to... Figure 1 and Figure 2 It includes a kiln body 1, and multiple assembly boxes 2 are fixedly connected inside the kiln body 1. The multiple assembly boxes 2 are arranged around the axis of the kiln body 1. Guide rods 3 are fixedly connected to both sides inside the assembly box 2. High alumina bricks 4 are slidably connected to the guide rods 3. The guide rods 3 pass through the high alumina bricks 4. A fixing brick 5 is provided at the center of the assembly box 2 to limit the position of the high alumina bricks 4. The high alumina bricks 4 are located on both sides of the fixing brick 5. In this embodiment, two high alumina bricks 4 are set on one side of the fixing brick.

[0025] Reference Figure 2 , Figure 3 and Figure 4A cavity 511 is formed inside the fixed brick 5. A through hole 512 communicating with the cavity 511 is formed at the upper end of the fixed brick 5. A sealing assembly 9 for sealing the through hole 512 is provided inside the through hole 512. The sealing assembly 9 includes a sealing cover plate 91, and an inner corner groove 911 is formed at the upper end of the sealing cover plate 91. A sealing block 92 is fixedly connected to the lower end of the sealing cover plate 91, and the sealing block 92 is threaded into the through hole 512. Thus, the sealing cover plate 91 can be rotated through the inner corner groove 911 by an external tool, thereby removing the sealing cover plate 91 from the through hole 512.

[0026] The fixed brick 5 includes a fixed part 51 and two movable parts 52. The cavity 511 and the through hole 512 are both placed on the fixed part 51. The fixed part 51 is placed between the two movable parts 52. The movable parts 52 are slidably connected to the fixed part 51 by a rod-like connector. A sliding inclined block 6 is slidably connected in the cavity 511. A connecting rod 12 is fixedly connected to the movable part 52. An abutting inclined block 7 is fixedly connected to the end of the connecting rod 12 away from the movable part 52.

[0027] The cavity 511 is provided with a moving assembly 8 for moving the sliding wedge 6. The moving assembly 8 includes a fixed lead screw 81 rotatably connected in the cavity 511, and guide rods 82 are provided on both sides of the fixed lead screw 81. The length direction of the guide rods 82 is parallel to the length direction of the fixed lead screw 81. The guide rods 82 are fixedly connected in the cavity 511. The sliding wedge 6 passes through and is slidably connected to the guide rods 82. The sliding wedge 6 is threadedly connected to the fixed lead screw 81.

[0028] Thus, by rotating the fixed screw 81, the sliding inclined block 6 is driven to slide, so that the sliding inclined block 6 abuts against the abutting inclined block 7. When the abutting inclined block 7 abuts against the sliding inclined block 6, the movable part 52 moves to the side of the high-alumina brick 4, thereby adjusting the position of the movable part 52 so that the movable part 52 abuts against the side wall of the high-alumina brick 4, thereby fixing the high-alumina brick 4 and the fixed brick 5 in the assembly box 2.

[0029] A groove 41 is provided on the side of the high-alumina brick 4 near the fixed brick 5. A dividing block 10 is provided between two adjacent high-alumina bricks 4. A hidden groove 42 is provided on the side wall of the high-alumina brick 4. The dividing block 10 is placed in the hidden groove 42. A separation component 11 for moving the dividing block 10 is provided on the guide rod 3.

[0030] The separating assembly 11 includes a slide rod 111 that passes through and is slidably connected to the guide rod 3, with the guide rod 3 and slide rod 111 coaxially arranged. A force-bearing rod 112 is fixedly connected to the guide rod 3. A sliding hole 31 is provided on the guide rod 3, through which the dividing block 10 passes and is fixedly connected to the slide rod 111. A threaded cylinder 113 is fixedly connected in the groove 41, and a lifting rod 115 is threadedly connected to it. An adjusting nut 114 is fixedly connected to the lifting rod 115, with the adjusting nut 114 and lifting rod 115 coaxially arranged. The lifting rod 115 abuts against the force-bearing rod 112.

[0031] By rotating the lifting rod 115, the lifting rod 115 slides inside the threaded cylinder 113, thereby causing the lifting rod 115 to move along the threaded cylinder 113 toward the force-bearing rod 112, which in turn causes the force-bearing rod 112 to drive the dividing block 10 to separate two adjacent high-alumina brick blocks 4.

[0032] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A lime kiln, comprising a kiln body (1), characterized in that, Multiple assembly boxes (2) are fixedly connected inside the kiln body (1). The multiple assembly boxes (2) are arranged around the axis of the kiln body (1). Guide rods (3) are fixedly connected to both sides of the assembly box (2). High alumina bricks (4) are slidably connected to the guide rods (3). A fixing brick (5) for limiting the position of the high alumina bricks (4) is provided at the center of the assembly box (2). A cavity (511) is opened inside the fixing brick (5). A through hole (512) communicating with the cavity (511) is opened at the upper end of the fixing brick (5). A sealing component (9) for sealing the through hole (512) is provided inside the through hole (512). The fixing brick (5) includes a fixing part (51) and a fixing part (51). Two movable parts (52), the cavity (511) and the through hole (512) are both placed on the fixed part (51), the fixed part (51) is placed between the two movable parts (52), the movable part (52) is slidably connected to the fixed part (51), a sliding inclined block (6) is slidably connected in the cavity (511), a connecting rod (12) is fixedly connected on the movable part (52), and an abutting inclined block (7) is fixedly connected to one end of the connecting rod (12) away from the movable part (52). When the abutting inclined block (7) abuts against the sliding inclined block (6), the movable part (52) moves toward the high-alumina brick (4). A moving component (8) for driving the sliding inclined block (6) to move is provided in the cavity (511).

2. A lime kiln according to claim 1, characterized in that, The moving component (8) includes a fixed lead screw (81) rotatably connected in the cavity (511). Guide posts (82) are provided on both sides of the fixed lead screw (81). The length direction of the guide posts (82) is parallel to the length direction of the fixed lead screw (81). The guide posts (82) are fixedly connected in the cavity (511). The sliding block (6) passes through and is slidably connected to the guide posts (82). The sliding block (6) is threadedly connected to the fixed lead screw (81).

3. A lime kiln according to claim 1, characterized in that, The sealing assembly (9) includes a sealing cover plate (91), and a sealing block (92) is fixedly connected to the lower end of the sealing cover plate (91). The sealing block (92) is threadedly connected to the through hole (512).

4. A lime kiln according to claim 3, characterized in that, The upper end of the sealing cover plate (91) is provided with an inner corner groove (911).

5. A lime kiln according to claim 1, characterized in that, The high-alumina brick (4) has a groove (41) on the side near the fixed brick (5), and a dividing block (10) is provided between two adjacent high-alumina bricks (4). The guide rod (3) is provided with a separation component (11) for moving the dividing block (10).

6. A lime kiln according to claim 5, characterized in that, The separation assembly (11) includes a slide rod (111) that passes through and is slidably connected to the guide rod (3), a force rod (112) that is fixedly connected to the guide rod (3), a sliding hole (31) that is opened on the guide rod (3), the dividing block (10) that passes through the sliding hole (31) and is fixedly connected to the slide rod (111), a threaded cylinder (113) that is fixedly connected in the groove (41), a lifting rod (115) that is threadedly connected in the threaded cylinder (113), and the lifting rod (115) abutting against the force rod (112).

7. A lime kiln according to claim 6, characterized in that, A hidden groove (42) is provided on the side wall of the high-alumina brick (4), and the dividing block (10) is placed in the hidden groove (42).

8. A lime kiln according to claim 6, characterized in that, An adjusting nut (114) is fixedly connected to the lifting rod (115).

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