Fireproof prefabricated part for rotary kiln lining

Abstract

The utility model relates to the technical field of fire-resistant prefabricated parts, and discloses a fire-resistant prefabricated part for a rotary kiln lining, which comprises a rotary kiln and a prefabricated component, the prefabricated component is arranged on the rotary kiln, the prefabricated component comprises a plurality of arc-shaped blocks, arc-shaped refractory bricks and radian fixing plates, the multiple arc-shaped blocks are fixedly connected to the inner wall of the rotary kiln, mounting grooves are formed in the upper surfaces of the multiple arc-shaped blocks, mounting holes are formed in the bottom walls of the multiple mounting grooves, and the multiple radian fixing plates are fixedly connected to the inner wall of the rotary kiln. The ends, away from the rotary kiln, of the multiple radian fixing plates are fixedly connected with radian mounting refractory bricks, and the ends, away from the radian fixing plates, of the multiple radian mounting refractory bricks are fixedly connected with arc-shaped plates. And therefore, the mounting convenience of the rotary kiln lining is improved.

Description

Technical Field

[0001] This utility model relates to the field of refractory prefabrication technology, specifically a refractory prefabrication for rotary kiln lining. Background Technology

[0002] In industries such as cement, metallurgy, and chemicals, rotary kilns are core thermal equipment, and the performance of their lining materials directly determines the equipment's operating efficiency, safety, and service life.

[0003] Traditional rotary kiln lining construction generally employs on-site casting of refractory materials. This process requires building molds inside the kiln, pouring refractory concrete section by section, and then curing it for an extended period. This method has significant drawbacks: Firstly, on-site construction is greatly affected by factors such as ambient temperature and humidity, and the curing period of the refractory material is long (usually more than 72 hours), leading to prolonged equipment downtime and severely impacting production efficiency. Secondly, the integrally cast lining structure is prone to developing through cracks due to thermal expansion and contraction at high temperatures. Especially during kiln rotation, uneven stress on different parts can exacerbate crack propagation, potentially causing lining spalling, kiln penetration, and other safety accidents. Furthermore, when the lining is partially damaged, the traditional process requires complete dismantling and reconstruction, resulting in high maintenance costs and time-consuming labor, which cannot meet the demands of modern industry for rapid equipment maintenance. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a refractory prefabricated component for rotary kiln linings, which solves the problem of the traditional rotary kiln lining construction process that generally uses on-site casting of refractory materials, which requires building molds inside the kiln, casting refractory concrete section by section, and carrying out long-term curing.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a refractory prefabricated component for rotary kiln lining, comprising a rotary kiln;

[0008] The prefabricated components are set on the rotary kiln. The prefabricated components include arc-shaped blocks, arc-shaped refractory bricks and arc-shaped fixing plates. There are multiple arc-shaped blocks, which are fixedly connected to the inner wall of the rotary kiln. The upper surface of the multiple arc-shaped blocks is provided with mounting grooves, and the bottom wall of the multiple mounting grooves is provided with mounting holes. There are multiple arc-shaped fixing plates.

[0009] Preferably, the plurality of the arc-shaped fixing plates are fixedly connected to the inner wall of the rotary kiln, and the ends of the plurality of arc-shaped fixing plates away from the rotary kiln are fixedly connected to arc-shaped refractory bricks.

[0010] Preferably, an arc-shaped plate is fixedly connected to the end of each of the plurality of arc-shaped refractory bricks away from the arc-shaped fixing plate.

[0011] Preferably, the front and rear surfaces of the arc-shaped refractory brick are provided with arc-shaped grooves, and the upper surface of the arc-shaped refractory brick is provided with through holes.

[0012] Preferably, the through hole penetrates the lower surface of the arc-shaped refractory brick.

[0013] Preferably, there are multiple arc-shaped refractory bricks, and the multiple arc-shaped refractory bricks have completely identical structures.

[0014] Preferably, a screw is slidably connected to the inner wall of the through hole, and a bolt is threaded onto the outer wall of the screw.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a refractory prefabricated component for rotary kiln lining, which has the following beneficial effects:

[0017] 1. The rotary kiln lining uses precast refractory components. By setting precast components, the rotary kiln and the arc-shaped refractory bricks can be installed as a whole without the need for on-site casting, thereby improving the ease of installation of the rotary kiln lining.

[0018] 2. The rotary kiln lining uses refractory prefabricated components. Bolts are inserted into the inner walls of multiple through holes, and the lower ends of the bolts are clamped into the inner walls of the mounting holes. Then, the bolts are sleeved on the outer walls of the bolts to fix multiple arc-shaped refractory bricks, thereby strengthening the structural strength of the multiple arc-shaped refractory bricks after assembly and improving the stability of the multiple arc-shaped refractory bricks after assembly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the refractory prefabricated component for the rotary kiln lining of this utility model;

[0020] Figure 2 This is a schematic diagram of the lower surface of the rotary kiln of this utility model;

[0021] Figure 3 This is a schematic diagram showing the connection between the arc-shaped fixing plate and the rotary kiln of this utility model;

[0022] Figure 4 This is a schematic diagram of the surface of the arc-shaped refractory brick of this utility model;

[0023] Figure 5 This is a schematic diagram of the upper surface of the arc-shaped block of this utility model.

[0024] In the diagram: 1. Rotary kiln; 2. Arc-shaped refractory brick; 3. Arc-shaped block; 4. Bolt; 5. Screw; 6. Arc-shaped plate; 7. Arc-shaped fixing plate; 8. Arc-shaped refractory brick installation; 9. Through hole; 10. Arc-shaped groove; 11. Mounting hole; 12. Mounting groove. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-5 This utility model provides a new technical solution: a refractory prefabricated component for rotary kiln lining, including a rotary kiln 1, a prefabricated component, the prefabricated component being disposed on the rotary kiln 1, the prefabricated component including an arc-shaped block 3, an arc-shaped refractory brick 2, and an arc-shaped fixing plate 7, the number of arc-shaped blocks 3 being multiple, the multiple arc-shaped blocks 3 being fixedly connected to the inner wall of the rotary kiln 1, the upper surface of the multiple arc-shaped blocks 3 being provided with an installation groove 12, the bottom wall of the multiple installation grooves 12 being provided with an installation hole 11, and the number of arc-shaped fixing plates 7 being multiple.

[0027] Furthermore, multiple curved fixing plates 7 are fixedly connected to the inner wall of the rotary kiln 1, and curved refractory bricks 8 are fixedly connected to the ends of the multiple curved fixing plates 7 away from the rotary kiln 1.

[0028] Furthermore, each of the multiple curved refractory bricks 8 has a curved plate 6 fixedly connected to one end away from the curved fixing plate 7.

[0029] Furthermore, the front and rear surfaces of the arc-shaped refractory brick 2 are provided with arc-shaped grooves 10, and the upper surface of the arc-shaped refractory brick 2 is provided with through holes 9.

[0030] Furthermore, the through hole 9 penetrates the lower surface of the arc-shaped refractory brick 2.

[0031] Furthermore, there are multiple arc-shaped refractory bricks 2, and the structures of the multiple arc-shaped refractory bricks 2 are completely identical.

[0032] Furthermore, a screw 5 is slidably connected to the inner wall of the through hole 9, and a bolt 4 is threaded onto the outer wall of the screw 5.

[0033] Furthermore, when using the refractory prefabricated component for the rotary kiln lining, the first step is to install multiple arc-shaped refractory bricks 2;

[0034] First, the staff fixed multiple arc-shaped blocks 3 to the inner wall of the rotary kiln 1;

[0035] Subsequently, multiple arc-shaped fixing plates 7 are fixedly connected to the inner wall of the rotary kiln 1, and multiple arc-shaped blocks 3 are located on the opposite side of the arc-shaped refractory bricks 8.

[0036] Then, the staff will insert the arc groove on the arc refractory brick 2 into the opposite surface of the two arc-shaped refractory bricks 8, so that the arc refractory brick 2 is inserted into the inner wall of the installation groove 12, and the arc refractory brick 2 will play a supporting role for the arc refractory brick 2 located at the bottom.

[0037] Subsequently, the workers sequentially fixed multiple arc-shaped refractory bricks 2 onto the arc-shaped refractory bricks 8. This process continued until all the arc-shaped refractory bricks 8 were installed (e.g., ...). Figure 1 (as shown)

[0038] Then, the workers inserted the bolts 4 into the inner walls of the multiple through holes 9 and clamped the lower end of the bolts 4 into the inner wall of the mounting holes 11. Then, the bolts 4 were fitted onto the outer wall of the bolts 4 to fix the multiple arc-shaped refractory bricks 2, thereby strengthening the structural strength of the multiple arc-shaped refractory bricks 2 after assembly and improving the stability of the multiple arc-shaped refractory bricks 2 after assembly.

[0039] By setting up prefabricated components, the rotary kiln 1 and the arc-shaped refractory brick 2 can be installed as a whole without the need for on-site casting, thereby improving the ease of installation of the rotary kiln lining.

[0040] Structural Description:

[0041] Arc-shaped refractory brick 2

[0042] structure:

[0043] Arc grooves 10 are provided on the front and rear surfaces (for snap-fit ​​fixing);

[0044] The upper surface has a through hole 9 that penetrates the lower surface (for inserting the screw 5).

[0045] There are multiple pieces, all with identical structures, spliced ​​together to form an inner curved surface.

[0046] Function: It comes into direct contact with high-temperature materials and is the main heat-bearing component of the refractory lining.

[0047] Arc Block 3

[0048] structure:

[0049] There are multiple of them, fixed to the inner wall of rotary kiln 1;

[0050] An installation groove 12 is provided on the upper surface (to accommodate the bottom of the arc-shaped refractory brick 2).

[0051] Mounting hole 11 is provided on the bottom wall of mounting groove 12 (for the lower end of bolt 4 to be inserted and fixed).

[0052] Function: Provides bottom support and positions the bottom of the curved refractory brick 2.

[0053] Bolt 4

[0054] Structure: A fastener that mates with screw 5, threaded onto the outer wall of screw 5.

[0055] Function: By screwing in the screw 5, the multi-layered arc-shaped refractory brick 2 is pressed and fixed onto the arc-shaped block 3, thereby enhancing the overall connection strength.

[0056] Screw 5

[0057] Structure: The through hole 9 penetrates the arc-shaped refractory brick 2, and the lower end is inserted into the mounting hole 11.

[0058] Function: As the load-bearing carrier of bolt 4, it transfers the weight and thermal stress of the arc-shaped refractory brick 2 to the arc-shaped block 3.

[0059] Curved plate 6

[0060] Structure: Fixed to the end of the curved refractory brick 8 away from the curved fixing plate 7, in an arc shape.

[0061] Function: To provide auxiliary support for the side of the curved refractory brick 2 and enhance the stability of the lateral connection.

[0062] Curvature fixing plate 7

[0063] structure:

[0064] There are multiple of them, fixed to the inner wall of rotary kiln 1;

[0065] One end is connected to the arc-shaped refractory brick installation 8.

[0066] Function: As a supporting frame, it fixes the position of the arc-shaped refractory brick 8, forming an arc-shaped snap-fit ​​structure.

[0067] Curved installation of refractory bricks 8

[0068] structure:

[0069] One end is fixed to the arc fixing plate 7, and the other end is connected to the arc plate 6;

[0070] The opposite sides (i.e., the two sides) are used to snap the arc-shaped refractory brick 2 into the arc-shaped groove 10.

[0071] 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 refractory prefabricated component for rotary kiln lining, characterized in that, include: Rotary kiln (1); The prefabricated components are set on the rotary kiln (1). The prefabricated components include arc-shaped blocks (3), arc-shaped refractory bricks (2) and arc-shaped fixing plates (7). There are multiple arc-shaped blocks (3). Multiple arc-shaped blocks (3) are fixedly connected to the inner wall of the rotary kiln (1). The upper surface of multiple arc-shaped blocks (3) is provided with mounting grooves (12). The bottom wall of multiple mounting grooves (12) is provided with mounting holes (11). There are multiple arc-shaped fixing plates (7).

2. The refractory prefabricated component for rotary kiln lining according to claim 1, characterized in that: Multiple curved fixing plates (7) are fixedly connected to the inner wall of the rotary kiln (1), and curved refractory bricks (8) are fixedly connected to the end of the multiple curved fixing plates (7) away from the rotary kiln (1).

3. A refractory prefabricated component for rotary kiln lining according to claim 2, characterized in that: Each of the multiple arc-shaped refractory bricks (8) has an arc-shaped plate (6) fixedly connected to one end away from the arc-shaped fixing plate (7).

4. A refractory prefabricated component for rotary kiln lining according to claim 1, characterized in that: The front and rear surfaces of the arc-shaped refractory brick (2) are provided with arc-shaped grooves (10), and the upper surface of the arc-shaped refractory brick (2) is provided with through holes (9).

5. A refractory prefabricated component for rotary kiln lining according to claim 4, characterized in that: The through hole (9) penetrates the lower surface of the arc-shaped refractory brick (2).

6. A refractory prefabricated component for rotary kiln lining according to claim 4, characterized in that: The number of the arc-shaped refractory bricks (2) is multiple, and the structures of the multiple arc-shaped refractory bricks (2) are completely identical.

7. A refractory prefabricated component for rotary kiln lining according to claim 4, characterized in that: The inner wall of the through hole (9) is slidably connected to a screw (5), and the outer wall of the screw (5) is threaded with a bolt (4).

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