Fireproof material Raymond mill grinding cavity seal dust device

Abstract

The utility model relates to fire -resistant material grinds with raymond mill grinding cavity sealing dustproof device technical field, especially with fire -resistant material grinds with raymond mill grinding cavity sealing dustproof device, including device ontology. The sealing cover plate can be tightly attached with device ontology under the elastic pressure action of connecting spring, further enhances the sealing tightness, the locking cooperation of magnetic attraction lock block and fixed lock head and the auxiliary support of resistance rod can prevent the vibration of equipment operation or the pressure change in grinding cavity interior from leading to the sealing structure loosening, ensure that the sealing state is long -term stable, compared with the problem that traditional rubber sealing ring is easy to age and the sealing of cover plate buckling is not tight, the device can reduce dust leakage from the root, guarantees the clean workshop production environment, avoids the operator inhaling dust and harms health, reduces the raw material waste, prevents dust from entering equipment transmission parts and causes abrasion simultaneously, prolongs the service life of raymond mill, reduces the equipment maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing and dustproofing devices for the grinding chamber of a Raymond mill for grinding refractory materials, and in particular to a sealing and dustproofing device for the grinding chamber of a Raymond mill for grinding refractory materials. Background Technology

[0002] In the field of refractory material production and processing, the Raymond mill, as a core grinding equipment, undertakes the crucial task of grinding block and granular refractory raw materials to the required fineness. During the grinding process, the raw materials are subjected to the squeezing and grinding action of grinding rollers and grinding rings within the Raymond mill's grinding chamber, generating a large amount of fine dust. This dust not only affects the workshop production environment, causing operators to inhale dust and harm their health, but also wastes raw materials and increases production costs. Furthermore, if dust enters critical parts of the Raymond mill, such as transmission components and bearings, it will accelerate component wear, shorten equipment lifespan, increase equipment maintenance frequency and costs, and in severe cases, even lead to equipment shutdown, affecting production progress.

[0003] Traditional Raymond mill grinding chamber sealing and dust prevention methods mostly employ simple rubber sealing rings or cover plate snap-fit ​​seals. However, during long-term use, rubber sealing rings are prone to aging, deformation, and wear due to temperature changes inside the grinding chamber, dust friction, and equipment vibration, leading to a gradual decline in sealing performance and ultimately dust leakage from the sealing gaps. Cover plate snap-fit ​​seals, on the other hand, suffer from uneven sealing pressure and poor fit between the cover plate and the grinding chamber, making it difficult to achieve long-term effective dust prevention. Therefore, a Raymond mill grinding chamber sealing and dust prevention device for refractory material grinding is proposed to solve these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a dustproof sealing device for the grinding chamber of a Raymond mill for grinding refractory materials. This solves the problems of traditional Raymond mill grinding chamber dustproof sealing methods, which often rely on simple rubber sealing rings or cover plate fastening. Rubber sealing rings are prone to aging, deformation, and wear during long-term use due to temperature changes inside the grinding chamber, dust friction, and equipment vibration, leading to a gradual decline in sealing performance and ultimately dust leakage from the sealing gap. Cover plate fastening seals, on the other hand, suffer from uneven sealing pressure and poor fit between the cover plate and the grinding chamber, making it difficult to achieve long-term effective dustproof sealing.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a sealing and dustproof device for the grinding chamber of a Raymond mill for grinding refractory materials, comprising a device body, a rotating ring rotatably connected to the top middle section of the device body, an arc-shaped toothed plate fixedly connected to the outer wall of the rotating ring, a hinge seat fixedly connected to the top of the device body, a rotating connecting rod fixedly connected to the inner wall of the hinge seat, a connecting spring fixedly connected to the inner side of the rotating connecting rod, a sealing cover plate sleeved on the outer wall of the connecting spring, a fixed handle fixedly connected to the top outer wall of the sealing cover plate, a sealing ring gasket provided at the connection between the rotating ring and the device body, a meshing gear meshing on the outer wall of the arc-shaped toothed plate, a connecting rotating rod fixedly connected to the inner wall of the meshing gear, and a handwheel fixedly connected to the upper outer wall of the connecting rotating rod.

[0006] A further improvement is that a limiting block is fixedly connected to the top of the device body, and the limiting block is symmetrically arranged on both sides of the arc-shaped toothed plate. During the rotation of the rotating ring, the limiting block fixed to the top of the device body and symmetrically arranged on both sides of the arc-shaped toothed plate will restrict the movement trajectory of the arc-shaped toothed plate, prevent the rotating ring from deviating due to excessive rotation of the arc-shaped toothed plate, and ensure that the rotating ring always rotates stably along the preset trajectory.

[0007] A further improvement is that the rotating ring is disposed on the inner wall of the sealing cover; the rotating ring is disposed on the inner wall of the sealing cover, and during its rotation, it will generate a circumferential thrust on the inner wall of the sealing cover; since the sealing cover is hinged to the inner wall of the hinge seat at the connection point, the sealing cover rotates around the hinge point as the axis and gradually adheres to the top of the device body.

[0008] A further improvement is that the sealing cover and the hinge seat are hinged to the inner wall of the hinge seat; the sealing cover rotates around the hinge point as an axis and gradually fits against the top of the device body; during this process, the connecting spring fixed inside the sealing cover is compressed and produces elastic deformation, and the elastic reaction force of the connecting spring will apply pressure to the sealing cover in the direction of the device body, making the sealing cover fit more tightly against the top of the device body and further enhancing the sealing effect.

[0009] A further improvement is that a sealing gasket is provided at the connection between the connecting rod and the device body; as the connecting rod continues to rotate, the connecting sleeve fixed to its lower outer wall rotates synchronously, and the connecting rod fixed to the outer end of the connecting sleeve moves in a circular motion with the connecting sleeve, causing the connecting locking block fixed to the inner outer wall of the connecting rod to move closer to the bottom of the device body; when the sealing cover plate is completely in contact with the top of the device body and reaches the optimal sealing state, the magnetic locking block fixed to the inner wall of the connecting locking block is exactly aligned with the fixed lock head fixed to the bottom of the device body, and the magnetic locking block is magnetically connected to the inner wall of the fixed lock head through its own magnetism, thereby realizing the locking of the connecting locking block and the fixed lock head.

[0010] A further improvement is that a connecting sleeve is fixedly connected to the outer wall of the lower section of the connecting rod, a connecting rod is fixedly connected to the outer end of the connecting sleeve, a connecting lock block is fixedly connected to the outer wall of the inner side of the connecting rod, a magnetic lock block is fixedly connected to the inner wall of the connecting lock block, and a fixing lock head is fixedly connected to the bottom of the device body.

[0011] A further improvement is that the magnetic locking block is magnetically connected to the inner wall of the fixed lock head; the connecting sleeve, connecting rod and connecting locking block rotate in the opposite direction with the connecting rotating rod, the magnetic locking block separates from the fixed lock head and releases the lock; at this time, the connecting spring returns to its natural relaxed state, pushing the sealing cover to rotate in the opposite direction around the hinge seat, thereby opening the sealing cover.

[0012] A further improvement is that a mounting base is fixedly connected to the inner wall of the device body, a connecting gas rod is hinged to the inner wall of the mounting base, a hinged connecting block is fixedly connected to the outer end of the connecting gas rod, a stop rod is fixedly connected to the outer end of the hinged connecting block, and a connecting bent rod is hinged to the inner wall of the other side of the device body.

[0013] By means of the above technical solution, this utility model provides a dustproof sealing device for the grinding chamber of a Raymond mill for grinding refractory materials, which has at least the following beneficial effects:

[0014] 1. This utility model significantly improves the sealing and dustproof effect of the Raymond mill grinding chamber through the synergistic effect of a multi-dimensional sealing structure. The sealing ring gasket at the connection between the rotating ring and the device body, and the sealing gasket between the connecting rod and the device body form a basic seal, which can initially block dust penetration. Under the elastic pressure of the connecting spring, the sealing cover plate can fit tightly with the device body, further enhancing the sealing tightness. The locking cooperation between the magnetic locking block and the fixed lock head, as well as the auxiliary support of the abutment rod, can prevent the sealing structure from loosening due to equipment vibration or pressure changes inside the grinding chamber, ensuring long-term stability of the sealing state. Compared with the problems of easy aging of traditional rubber sealing rings and loose sealing of cover plates, this device can reduce dust leakage at the source, which not only ensures the cleanliness of the workshop production environment and avoids operators inhaling dust and harming their health, but also reduces raw material waste, prevents dust from entering the equipment transmission parts and causing wear, extends the service life of the Raymond mill, and reduces equipment maintenance costs.

[0015] 2. This utility model utilizes the transmission and cooperation of a handwheel, connecting rod, meshing gear, and arc-shaped toothed plate. The operator only needs to turn the handwheel to open and close the sealing cover, eliminating the need for special tools to disassemble multiple bolts, making operation simple and labor-saving. The fixed handle on the top of the sealing cover can also assist in adjusting the opening and closing angle, further enhancing operational convenience. In terms of maintenance, when it is necessary to inspect the grinding chamber, clean residual materials, or replace parts, simply turning the handwheel in the opposite direction will release the seal and lock. The connecting spring also helps the sealing cover to automatically spring open, significantly shortening maintenance preparation time. The limit block restricts the trajectory of the arc-shaped toothed plate, preventing component displacement during operation and reducing the difficulty and risk of maintenance operations. Compared to the cumbersome, time-consuming, and labor-intensive maintenance of traditional sealing devices, this device effectively reduces equipment downtime for maintenance, improves production continuity, reduces the labor intensity of operators, and indirectly reduces production and operating costs. Attached Figure Description

[0016] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the oblique side structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the inclined tilting structure of this utility model;

[0021] Figure 4 This is a partial structural diagram of the present invention.

[0022] In the diagram: 1. Device body; 2. Rotating ring; 3. Hinge seat; 4. Rotating connecting rod; 5. Connecting spring; 6. Sealing cover plate; 7. Fixed handle; 8. Arc-shaped toothed plate; 9. Meshing gear; 10. Connecting rotating rod; 11. Handwheel; 12. Connecting sleeve; 13. Connecting rod; 14. Connecting lock block; 15. Magnetic lock block; 16. Fixed lock head; 17. Sealing ring gasket; 18. Connecting bent rod; 19. Mounting seat; 20. Connecting gas spring; 21. Hinge connecting block; 22. Abutment rod; 23. Limiting block. Detailed Implementation

[0023] 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.

[0024] Traditional Raymond mill grinding chamber sealing and dust prevention methods mostly employ simple rubber sealing rings or cover plate snap-fit ​​seals. Rubber sealing rings are prone to aging, deformation, and wear during long-term use due to temperature changes inside the grinding chamber, dust friction, and equipment vibration, leading to a gradual decline in sealing performance and ultimately dust leakage from the sealing gaps. Cover plate snap-fit ​​seals suffer from uneven sealing pressure and loose fit between the cover and the grinding chamber, making it difficult to achieve long-term effective dust prevention. This embodiment provides a Raymond mill grinding chamber sealing and dust prevention device for refractory material grinding. Please refer to... Figures 1-4 An embodiment provides a sealing and dustproof device for the grinding chamber of a Raymond mill for grinding refractory materials, including a device body 1. A rotating ring 2 is rotatably connected to the top middle section of the device body 1. An arc-shaped toothed plate 8 is fixedly connected to the outer wall of the rotating ring 2. A hinge seat 3 is fixedly connected to the top of the device body 1. A rotating connecting rod 4 is fixedly connected to the inner wall of the hinge seat 3. A connecting spring 5 is fixedly connected to the inner side of the rotating connecting rod 4. A sealing cover plate 6 is sleeved on the outer wall of the connecting spring 5. A fixed handle 7 is fixedly connected to the top outer wall of the sealing cover plate 6. A sealing ring gasket 17 is provided at the connection between the rotating ring 2 and the device body 1. A meshing gear 9 meshes with the outer wall of the arc-shaped toothed plate 8. A connecting rotating rod 10 is fixedly connected to the inner wall of the meshing gear 9. A handwheel 11 is fixedly connected to the upper outer wall of the connecting rotating rod 10. Limiting blocks 23 are fixedly connected to the top of the device body 1, and the limiting blocks 23 are symmetrically arranged on both sides of the arc-shaped toothed plate 8. The rotating ring 2 is set on the inner wall of the sealing cover plate 6; the sealing cover plate 6 and the hinge seat 3 are hinged to the inner wall of the hinge seat 3; a sealing gasket is set at the connection between the connecting rod 10 and the device body 1; a connecting sleeve 12 is fixedly connected to the outer wall of the lower section of the connecting rod 10, a connecting rod 13 is fixedly connected to the outer end of the connecting sleeve 12, a connecting lock block 14 is fixedly connected to the outer wall of the inner side of the connecting rod 13, a magnetic lock block 15 is fixedly connected to the inner wall of the connecting lock block 14, and a fixed lock head 16 is fixedly connected to the bottom of the device body 1; the magnetic lock block 15 is magnetically connected to the inner wall of the fixed lock head 16; a mounting base 19 is fixedly connected to the inner wall of the device body 1, a connecting air rod 20 is hinged to the inner wall of the mounting base 19, a hinge connecting block 21 is fixedly connected to the outer end of the connecting air rod 20, a stop rod 22 is fixedly connected to the outer end of the hinge connecting block 21, and a connecting bent rod 18 is hinged to the inner wall of the other side of the device body 1.

[0025] Working principle: Before the sealing operation is initiated, the sealing cover 6 is hinged to the device body 1 via the hinge seat 3, and the connecting spring 5 is in a naturally relaxed state, providing initial support for the sealing cover 6; the rotating ring 2 is rotatably connected to the top middle section of the device body 1 via the sealing ring gasket 17, and the sealing ring gasket 17 initially fills the gap between the rotating ring 2 and the device body 1, playing a basic sealing role; the sealing gasket at the connection between the connecting rod 10 and the device body 1 is in a close fit, preventing dust from leaking from the gap between the connecting rod 10 and the device body 1; the mounting seat 19 is fixed to the inner wall of the device body 1, the connecting air rod 20 retracts, and the abutment rod 22 is in an initial position close to the inner wall of the device body 1 under the action of the hinge connecting block 21; the connecting bent rod 18 is also in a naturally hinged state, without interfering with other components;

[0026] When the grinding chamber needs to be sealed, the operator turns the handwheel 11, which drives the fixedly connected connecting rod 10 to rotate around its own axis. Since the meshing gear 9 is fixedly connected to the outer wall of the upper section of the connecting rod 10, the rotation of the connecting rod 10 synchronously drives the meshing gear 9 to rotate. The meshing gear 9 meshes with the arc-shaped toothed plate 8 fixed to the outer wall of the rotating ring 2, so the rotation of the meshing gear 9 is converted into the circular motion of the arc-shaped toothed plate 8, which in turn drives the rotating ring 2 to rotate around the top middle section of the device body 1. During the rotation of the rotating ring 2, the limiting blocks 23 fixed to the top of the device body 1 are symmetrically arranged on both sides of the arc-shaped toothed plate 8 to limit the movement trajectory of the arc-shaped toothed plate 8, preventing the rotating ring 2 from deviating due to excessive rotation of the arc-shaped toothed plate 8, and ensuring that the rotating ring 2 always rotates stably along the preset trajectory. The rotating ring 2 is located on the inner wall of the sealing cover 6. During its rotation, it generates a circumferential thrust on the inner wall of the sealing cover 6. Since the sealing cover 6 is hinged to the inner wall of the hinge seat 3, the sealing cover 6 rotates around the hinge point as the axis and gradually comes into contact with the top of the device body 1. During this process, the connecting spring 5 fixed inside the sealing cover 6 is compressed and undergoes elastic deformation. The elastic reaction force of the connecting spring 5 will apply pressure to the sealing cover 6 in the direction of the device body 1, making the sealing cover 6 fit more tightly with the top of the device body 1 and further enhancing the sealing effect. At the same time, the sealing ring gasket 17 at the connection between the rotating ring 2 and the device body 1 is tightly filled by the compression of the rotating ring 2, preventing dust from leaking from the connection.

[0027] As the connecting rod 10 continues to rotate, the connecting sleeve 12 fixed to its lower outer wall rotates synchronously. The connecting rod 13 fixed to the outer end of the connecting sleeve 12 moves in a circular motion with the connecting sleeve 12, causing the connecting locking block 14 fixed to the inner outer wall of the connecting rod 13 to move closer to the bottom of the device body 1. When the sealing cover 6 is completely attached to the top of the device body 1 and reaches the optimal sealing state, the magnetic locking block 15 fixed to the inner wall of the connecting locking block 14 is exactly aligned with the fixed lock head 16 fixed to the bottom of the device body 1. The magnetic locking block 15 is magnetically connected to the inner wall of the fixed lock head 16 through its own magnetism, thereby locking the connecting locking block 14 and the fixed lock head 16. This magnetic locking structure can effectively limit the reverse rotation of the connecting rod 10, thereby fixing the position of the meshing gear 9, the arc-shaped toothed plate 8 and the rotating ring 2, preventing the sealing cover 6 from loosening due to vibration and other factors during equipment operation, and ensuring the stability of the sealing structure.

[0028] When the device is in operation for a long time or the internal pressure of the grinding chamber is high, in order to further enhance the support stability of the sealing cover plate 6, the connecting air rod 20 hinged to the inner wall of the mounting base 19 can be activated; the connecting air rod 20 extends, pushing the hinged connecting block 21 fixed at its outer end to move towards the sealing cover plate 6, and the abutment rod 22 fixed at its outer end moves together, and finally the abutment rod 22 presses against the outer wall of the sealing cover plate 6, providing additional support force for the sealing cover plate 6 and preventing the sealing cover plate 6 from deforming or failing to seal due to excessive internal pressure; at the same time, the connecting bent rod 18 hinged to the inner wall of the other side of the device body 1 can be adjusted in angle according to actual needs to assist in supporting the sealing cover plate 6 or other components, further improving the overall structural stability of the device; when it is necessary to open When the grinding chamber is being inspected, cleaned, or parts are being replaced, the operator only needs to turn the handwheel 11 in the opposite direction. The connecting rod 10 drives the meshing gear 9 to rotate in the opposite direction, thereby causing the arc-shaped toothed plate 8 and the rotating ring 2 to move in opposite directions, releasing the thrust on the sealing cover 6. At the same time, the connecting sleeve 12, connecting rod 13, and connecting lock block 14 rotate in the opposite direction with the connecting rod 10, and the magnetic lock block 15 separates from the fixed lock head 16, releasing the lock. At this time, the connecting spring 5 returns to its natural relaxed state, pushing the sealing cover 6 to rotate in the opposite direction around the hinge seat 3, thus opening the sealing cover 6. The operator can also conveniently adjust the opening and closing angle of the sealing cover 6 through the fixed handle 7 fixed on the top outer wall of the sealing cover 6, improving the convenience of maintenance operations.

[0029] Throughout the entire operation of the device, the sealing gasket at the connection between the connecting rod 10 and the device body 1 remains tightly fitted to prevent dust from entering or leaking through the gap between the connecting rod 10 and the device body 1. The sealing ring gasket 17, the sealing cover plate 6 under the action of the connecting spring 5, and the structural stability brought by the magnetic locking together constitute a multi-dimensional and all-round sealing and dustproof system, effectively preventing dust leakage in the grinding chamber and ensuring a clean production environment and stable equipment operation.

[0030] It should be noted that, in this document, 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.

[0031] 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 dustproof sealing device for the grinding chamber of a Raymond mill for grinding refractory materials, comprising a device body (1), characterized in that: The device body (1) is rotatably connected to the top middle section of a rotating ring (2). An arc-shaped toothed plate (8) is fixedly connected to the outer wall of the rotating ring (2). The device body (1) is fixedly connected to the top of a hinge seat (3). A rotating connecting rod (4) is fixedly connected to the inner wall of the hinge seat (3). A connecting spring (5) is fixedly connected to the inner side of the rotating connecting rod (4). A sealing cover plate (6) is sleeved on the outer wall of the connecting spring (5). A fixed handle (7) is fixedly connected to the top outer wall of the sealing cover plate (6). A sealing ring gasket (17) is provided at the connection between the rotating ring (2) and the device body (1). A meshing gear (9) is engaged on the outer wall of the arc-shaped toothed plate (8). A connecting rotating rod (10) is fixedly connected to the inner wall of the meshing gear (9). A handwheel (11) is fixedly connected to the upper outer wall of the connecting rotating rod (10).

2. The sealing and dustproof device for the grinding chamber of a Raymond mill for grinding refractory materials according to claim 1, characterized in that: The device body (1) is fixedly connected to a limiting block (23) at the top, and the limiting block (23) is symmetrically arranged on both sides of the arc-shaped toothed plate (8).

3. The sealing and dustproof device for the grinding chamber of a Raymond mill for grinding refractory materials according to claim 1, characterized in that: The rotating ring (2) is disposed on the inner wall of the sealing cover plate (6).

4. The sealing and dustproof device for the grinding chamber of a Raymond mill for grinding refractory materials according to claim 1, characterized in that: The sealing cover (6) and the hinge seat (3) are hinged to the inner wall of the hinge seat (3).

5. The sealing and dustproof device for the grinding chamber of a Raymond mill for grinding refractory materials according to claim 1, characterized in that: A sealing gasket is provided at the connection between the connecting rod (10) and the device body (1).

6. The sealing and dustproof device for the grinding chamber of a Raymond mill for grinding refractory materials according to claim 1, characterized in that: A connecting sleeve (12) is fixedly connected to the outer wall of the lower section of the connecting rod (10). A connecting rod (13) is fixedly connected to the outer end of the connecting sleeve (12). A connecting lock block (14) is fixedly connected to the outer wall of the inner side of the connecting rod (13). A magnetic lock block (15) is fixedly connected to the inner wall of the connecting lock block (14). A fixed lock head (16) is fixedly connected to the bottom of the device body (1).

7. The sealing and dustproof device for the grinding chamber of a Raymond mill for grinding refractory materials according to claim 6, characterized in that: The magnetic locking block (15) is magnetically connected to the inner wall of the fixed lock head (16).

8. The sealing and dustproof device for the grinding chamber of a Raymond mill for grinding refractory materials according to claim 1, characterized in that: The inner wall of the device body (1) is fixedly connected to a mounting base (19), the inner wall of the mounting base (19) is hinged to a connecting air rod (20), the outer end of the connecting air rod (20) is fixedly connected to a hinged connecting block (21), the outer end of the hinged connecting block (21) is fixedly connected to a stop rod (22), and the inner wall of the other side of the device body (1) is hinged to a connecting bent rod (18).

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