Sealing structure of discharge port of rotary kiln

Abstract

The utility model relates to the technical field of rotary kilns, in particular to a sealing structure for discharge ports of a rotary kiln, which is characterized in that during discharge, a motor is mounted on one side of a discharge box, a sealing plate component is mounted at the output end of the motor, and the sealing plate component is positioned in an inner cavity of a first discharge port and used for sealing the first discharge port; a material guiding plate is arranged in a cavity of the discharging box, one end of the material guiding plate is in lap joint with a first discharging opening, and a second discharging opening is formed in the end, away from the first discharging opening, of the material guiding plate. By means of the layout of the first discharging port and the second discharging port, the sealing effect is greatly enhanced, the effect is remarkable, and the problems that when the discharging port of an existing rotary kiln is affected by high temperature and high pressure for a long time, parts are prone to deformation, gaps are formed, and the sealing effect is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, in particular to a sealing structure for the discharge port of a rotary kiln. Background Art

[0002] A rotary kiln, also known as a rotary calciner or rotary kiln, is an important thermal equipment widely used in multiple industrial fields. The working principle of a rotary kiln is mainly based on its rotational movement and the high-temperature environment inside. Materials enter from one end of the kiln and gradually move to the other end as the kiln body rotates. During this process, they are affected by high temperature and other processing conditions, undergoing chemical and physical changes. The main processes include heating and sintering, reaction and transformation, and cooling and treatment. In the heating and sintering stage, the materials are gradually heated at high temperature, and moisture and volatile substances are evaporated and discharged. At the same time, the sintering and solidification of the ore occur. In the reaction and transformation stage, the chemical components in the materials react and transform at high temperature to produce the required products. In the cooling and treatment stage, the materials are gradually cooled to stabilize and solidify the products. However, the discharge port of the existing rotary kiln is extremely prone to component deformation and gaps under the long-term influence of high temperature and high pressure, resulting in poor sealing effect.

[0003] In view of the above problems, the utility model proposes a sealing structure for the discharge port of a rotary kiln. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a sealing structure for the discharge port of a rotary kiln, thereby solving the problems in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A sealing structure for the discharge port of a rotary kiln, including a discharge box rotatably connected to one side of the rotary kiln. A first discharge port is opened at one end of the discharge box close to the rotary kiln. A motor is installed on one side of the discharge box. A sealing plate assembly is installed at the output end of the motor. The sealing plate assembly is located in the inner cavity of the first discharge port and is used to seal the first discharge port. A guiding plate is arranged in the cavity of the discharge box. One end of the guiding plate overlaps the first discharge port, and a second discharge port is arranged at the end of the guiding plate far from the first discharge port;

[0006] An outer shaft main body is arranged on the inner wall of the second discharge port. An inner shaft main body is arranged on the inner wall of the outer shaft main body. A return torsion spring is sleeved on the outer wall of the inner shaft main body. One end of the return torsion spring is fixedly connected to a middle connecting block. The middle connecting block is fixedly connected to a baffle main body at the end far from the return torsion spring.

[0007] Preferably, the baffle main body matches the inner diameter size of the second discharge port, and the baffle main body is used to seal the second discharge port.

[0008] Preferably, the outer shaft body is rotatably connected to the inner wall of the second discharge port, and the inner shaft body is fixedly connected to the inner wall of the second discharge port.

[0009] Preferably, the baffle body penetrates through the outer shaft body and is fixedly connected to the outer shaft body.

[0010] Preferably, the seal plate assembly includes a first screw rod with one end fixedly connected to the motor, a second screw rod fixedly connected to one end of the first screw rod, a first upper connecting block threadedly connected to the outer wall of the first screw rod, a second connecting block threadedly connected to the outer wall of the second screw rod, and a seal plate A and a seal plate B fixedly connected to the upper ends of the first upper connecting block and the second connecting block respectively.

[0011] Preferably, the thread structures on the outer walls between the first screw rod and the second screw rod are opposite.

[0012] Preferably, engaging blocks and engaging grooves are respectively provided on the opposite sides of the seal plate A and the seal plate B.

[0013] Preferably, when the seal plate A and the seal plate B are mutually attached, they seal the first discharge port, and the engaging blocks are engaged in the engaging grooves.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] A sealing structure for the discharge port of a rotary kiln proposed by the present utility model, when discharging materials, first unlock the seal of the first discharge port by the seal plate assembly, and the materials will be introduced into the second discharge port through the guide plate from the first discharge port. By utilizing the layout of the first discharge port and the second discharge port, the sealing effect is greatly enhanced, with remarkable results, and it solves the problem that the discharge port of the existing rotary kiln is extremely prone to component deformation and gaps under the influence of long-term high temperature and high pressure, resulting in poor sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0017] Figure 2 is the structure schematic diagram of the discharge box of the present utility model;

[0018] Figure 3 is the internal structure schematic diagram of the outer shaft body of the present utility model;

[0019] Figure 4 is the disassembled structure schematic diagram of the seal plate assembly of the present utility model.

[0020] In the figure: 1. Discharge box; 2. Motor; 3. Sealing plate assembly; 5. Guide plate; 6. Second discharge port; 7. Outer shaft body; 8. Inner shaft body; 9. Return torsion spring; 10. Middle connection block; 11. Baffle main body; 41. First screw; 42. Second screw; 43. First upper connection block; 44. Second connection block; 45. Sealing plate A; 46. Sealing plate B; 47. Engaging block; 48. Engaging groove. Detailed implementation manner

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-4 , in order to solve the problem that the discharge port of the existing rotary kiln is extremely prone to component deformation and gaps under the influence of long-term high temperature and high pressure, resulting in poor sealing effect, the following preferred technical solutions are provided:

[0023] A sealing structure for the discharge port of a rotary kiln, including a discharge box 1 rotatably connected to one side of the rotary kiln. A first discharge port 2 is opened at one end of the discharge box 1 close to the rotary kiln. A motor 3 is installed on one side of the discharge box 1. The output end of the motor 3 is installed with a sealing plate assembly 4. The sealing plate assembly 4 is located in the inner cavity of the first discharge port 2. The sealing plate assembly 4 is used to seal the first discharge port 2. A guide plate 5 is arranged in the cavity of the discharge box 1. One end of the guide plate 5 overlaps the first discharge port 2, and a second discharge port 6 is arranged at the end of the guide plate 5 far from the first discharge port 2. The inner wall of the second discharge port 6 is provided with an outer shaft body 7. The inner wall of the outer shaft body 7 is provided with an inner shaft body 8. A return torsion spring 9 is sleeved on the outer wall of the inner shaft body 8. One end of the return torsion spring 9 is fixedly connected with a middle connection block 10. The end of the middle connection block 10 far from the return torsion spring 9 is fixedly connected with a baffle main body 11. The baffle main body 11 matches the inner diameter size of the second discharge port 6. The baffle main body 11 is used to seal the second discharge port 6. The outer shaft body 7 is rotatably connected to the inner wall of the second discharge port 6. The inner shaft body 8 is fixedly connected to the inner wall of the second discharge port 6. The baffle main body 11 penetrates the outer shaft body 7, and the baffle main body 11 is fixedly connected to the outer shaft body 7.

[0024] The sealing plate assembly 4 includes a first screw rod 41 with one end fixedly connected to the motor 3. One end of the first screw rod 41 is fixedly connected with a second screw rod 42. The outer wall of the first screw rod 41 is threadedly connected with a first upper connecting block 43. The outer wall of the second screw rod 42 is threadedly connected with a second connecting block 44. The upper ends of the first upper connecting block 43 and the second connecting block 44 are respectively fixedly connected with a sealing plate A 45 and a sealing plate B 46. The threaded structures on the outer walls between the first screw rod 41 and the second screw rod 42 are opposite. On the opposite sides of the sealing plate A 45 and the sealing plate B 46, engaging blocks 47 and engaging grooves 48 are respectively arranged. When the sealing plate A 45 and the sealing plate B 46 are mutually attached, the first discharge port 2 is sealed, and the engaging block 47 is engaged in the engaging groove 48.

[0025] Specifically, when discharging materials, first, the sealing of the first discharge port 2 by the sealing plate assembly 4 is released. The materials will be introduced into the second discharge port 6 through the guide plate 5 from the first discharge port 2, and thus accumulate on the upper wall of the baffle main body 11. The baffle main body 11 will transfer the gravity of the materials to the reset torsion spring 9 through the middle connecting block 10 until the stress of the reset torsion spring 9 is less than the gravity of the accumulated materials. The baffle main body 11 rotates at an angle through the inner shaft main body 8, so as to discharge materials. After discharging, through the acting force of the reset torsion spring 9, the baffle main body 11 will be driven to seal the second discharge port 6 again. By utilizing the layout of the first discharge port 2 and the second discharge port 6, the sealing effect is greatly enhanced, with remarkable effect, and it solves the problem that the discharge port of the existing rotary kiln is extremely prone to component deformation and gaps under the influence of long-term high temperature and high pressure, resulting in poor sealing effect.

[0026] When operating the sealing plate assembly 4, the motor 3 is used to drive the first screw rod 41 and the second screw rod 42, which can drive the first upper connecting block 43 and the second connecting block 44 to move in opposite directions, so that the first upper connecting block 43 and the second connecting block 44 move away from or close to each other. The operation is convenient, and through the cooperation of the engaging block 47 and the engaging groove 48, the sealing effect can be further improved.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for the discharge port of a rotary kiln, comprising a discharge box (1) rotatably connected to one side of the rotary kiln, characterized in that: One end of the discharge box (1) close to the rotary kiln is provided with a first discharge port (2). A motor (3) is installed on one side of the discharge box (1). The output end of the motor (3) is installed with a sealing plate assembly (4). The sealing plate assembly (4) is located in the inner cavity of the first discharge port (2). The sealing plate assembly (4) is used to seal the first discharge port (2). A guide plate (5) is arranged in the cavity of the discharge box (1). One end of the guide plate (5) overlaps the first discharge port (2), and a second discharge port (6) is arranged at the end of the guide plate (5) far from the first discharge port (2). An outer shaft body (7) is arranged on the inner wall of the second discharge port (6). An inner shaft body (8) is arranged on the inner wall of the outer shaft body (7). A return torsion spring (9) is sleeved on the outer wall of the inner shaft body (8). One end of the return torsion spring (9) is fixedly connected with an intermediate connecting block (10). One end of the intermediate connecting block (10) far from the return torsion spring (9) is fixedly connected with a baffle body (11).

2. The sealing structure of the discharge port of a rotary kiln according to claim 1, wherein: The baffle body (11) matches the inner diameter size of the second discharge port (6). The baffle body (11) is used to seal the second discharge port (6).

3. The sealing structure of the discharge port of a rotary kiln according to claim 1, wherein: The outer shaft body (7) is rotatably connected with the inner wall of the second discharge port (6). The inner shaft body (8) is fixedly connected with the inner wall of the second discharge port (6).

4. A sealing structure for the discharge port of a rotary kiln according to claim 1, characterized in that: The baffle body (11) penetrates through the outer shaft body (7), and the baffle body (11) is fixedly connected with the outer shaft body (7).

5. The sealing structure of the discharge port of a rotary kiln according to claim 1, wherein: The sealing plate assembly (4) includes a first screw rod (41) with one end fixedly connected to the motor (3). One end of the first screw rod (41) is fixedly connected with a second screw rod (42). A first upper connecting block (43) is threadedly connected to the outer wall of the first screw rod (41). A second connecting block (44) is threadedly connected to the outer wall of the second screw rod (42). The upper ends of the first upper connecting block (43) and the second connecting block (44) are respectively fixedly connected with a sealing plate A (45) and a sealing plate B (46).

6. The sealing structure of the discharge port of a rotary kiln according to claim 5, characterized in that: The thread structures on the outer walls between the first screw rod (41) and the second screw rod (42) are opposite.

7. The sealing structure of the discharge port of a rotary kiln according to claim 6, characterized in that: Engaging blocks (47) and engaging grooves (48) are respectively arranged on the opposite sides of the sealing plate A (45) and the sealing plate B (46).

8. The sealing structure of the discharge port of a rotary kiln according to claim 7, characterized in that: When the sealing plate A (45) and the sealing plate B (46) are mutually attached, they seal the first discharge port (2), and the engaging block (47) is engaged in the engaging groove (48).

Images