Coal mill hot air isolation door capable of preventing leakage
By introducing components such as slide rails and drive motors into the hot air isolation door of the coal mill, the problem of poor sealing caused by coal dust particles was solved, and the isolation door was effectively sealed, ensuring the safe operation and maintenance of the coal mill.
Patent Information
- Application Number
- CN202422291480.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The existing hot air isolation door of the coal mill cannot close tightly during operation because coal dust particles fall on the travel path, causing hot air to leak into the coal mill, which poses a safety hazard.
A coal mill hot air isolation door structure was designed, including a slide rail, an opening, a drive motor, a rack, a moving rod, and a spur gear. The slide rail pushes coal dust particles to the opening, and the drive motor and gear system are used to press and lock the isolation door to ensure a sealing effect.
This effectively prevented hot air leakage, ensured the safe operation of the coal mill, and protected the safety of maintenance personnel.
Smart Images
Figure CN223616006U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hot air isolation doors for coal mills, specifically a hot air isolation door for coal mills that can prevent leakage. Background Technology
[0002] The hot air isolation door of the coal mill is a crucial isolation device between the coal mill and the system. When the coal mill is in operation, the isolation door must be kept open stably; when the coal mill is under maintenance, the isolation door must be closed safely to prevent hot air from leaking into the coal mill, which could cause the coal powder inside the coal mill to spontaneously combust, or even threaten the personal safety of maintenance personnel inside the coal mill.
[0003] When the existing coal mill hot air isolation door is in operation, the coal mill itself will generate a large amount of coal dust particles. These particles fall on the path of the hot air isolation door, which will cause the hot air isolation door to fail to close tightly and allow hot air to leak in. Utility Model Content
[0004] The purpose of this utility model is to provide a coal mill hot air isolation door that can prevent leakage. When the isolation door slides, the coal dust particles in the slide rail are pushed to the opening, so as not to affect the sealing effect of the isolation door and prevent leakage.
[0005] To achieve the above objectives, a coal mill hot air isolation door that can prevent leakage is provided, including a door frame, a switching cylinder is provided on one side of the door frame, an isolation door is provided on one side of the switching cylinder, a slide rail is provided on the inner wall of the door frame, and openings are provided on both sides of the door frame.
[0006] A drive motor is fixedly connected to the upper end of the door frame, and a spur gear is fixedly connected to the output shaft of the drive motor. Moving rods are symmetrically arranged at the upper end of the door frame. A rack is fixedly connected to one side of one of the moving rods, and protrusions are symmetrically arranged on one side of both moving rods.
[0007] According to the aforementioned coal mill hot air isolation door that can prevent leakage, a coal mill inlet is provided on one side of the door frame.
[0008] According to the aforementioned coal mill hot air isolation door that can prevent leakage, a connecting rod is fixedly connected between the two moving rods.
[0009] According to the aforementioned coal mill hot air isolation door that can prevent leakage, the spur gear meshes with the rack.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. This type of coal mill hot air isolation door that can prevent leakage is designed with a sliding rail and an opening. When the isolation door slides, the coal dust particles in the sliding rail are pushed to the opening, so that they do not affect the sealing effect of the isolation door and prevent leakage.
[0012] 2. This type of coal mill hot air isolation door, which can prevent leakage, uses a drive motor, rack, moving rod, spur gear, and convex strip to press the isolation door together, thereby achieving a locking effect.
[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0015] Figure 1 This is a schematic diagram of the sealing of a coal mill hot air isolation door that can prevent leakage, according to the present invention.
[0016] Figure 2 This is a schematic diagram of the opening of the isolation door of a coal mill hot air isolation door that can prevent leakage, according to the present invention.
[0017] Figure 3 This is a top cross-sectional view of a coal mill hot air isolation door that can prevent leakage according to this utility model.
[0018] In the diagram: 1. Door frame; 2. Coal mill inlet; 3. Switch cylinder; 4. Isolation door; 5. Protrusion; 6. Drive motor; 7. Spur gear; 8. Moving rod; 9. Connecting rod; 10. Slide rail; 11. Opening; 12. Rack. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-3This utility model provides a technical solution: a coal mill hot air isolation door that can prevent leakage, including a door frame 1, a switching cylinder 3 on one side of the door frame 1, an isolation door 4 on one side of the switching cylinder 3, a slide rail 10 on the inner wall of the door frame 1, and openings 11 on both sides of the door frame 1. By setting the slide rail 10 and the openings 11, when the isolation door 4 slides, the coal dust particles in the slide rail 10 are pushed to the openings 11 so that they do not affect the sealing effect of the isolation door 4 and prevent leakage.
[0021] A drive motor 6 is fixedly connected to the upper end of the door frame 1. A spur gear 7 is fixedly connected to the output shaft of the drive motor 6. A moving rod 8 is symmetrically arranged at the upper end of the door frame 1. A rack 12 is fixedly connected to one side of one moving rod 8. A protrusion 5 is symmetrically arranged on one side of both moving rods 8. By setting up the drive motor 6, rack 12, moving rod 8, spur gear 7, and protrusion 5, the isolation door 4 is pressed together, which plays a locking role.
[0022] A coal mill inlet 2 is provided on one side of the door frame 1, and a connecting rod 9 is fixedly connected between the two moving rods 8. The spur gear 7 meshes with the rack 12.
[0023] Working principle: When in use, the power is turned on and the switch cylinder 3 is started. The switch cylinder 3 drives the isolation door 4 to move. The isolation door 4 pushes the coal dust particles in the slide rail 10 to the opening 11, so that the coal dust particles will not affect the sealing effect of the isolation door 4. The isolation door 4 seals the coal mill inlet 2. The drive motor 6 is started and drives the spur gear 7 to rotate. The spur gear 7 drives the moving rod 8 to move through the rack 12. The moving rod 8 drives the protrusion 5 to descend, squeezing and locking the isolation door 4.
[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A leak-proof hot air isolation door for a coal mill, comprising a door frame (1), characterized in that, A switch cylinder (3) is provided on one side of the door frame (1), and an isolation door (4) is provided on one side of the switch cylinder (3). A slide rail (10) is provided on the inner wall of the door frame (1), and an opening (11) is provided on both sides of the door frame (1). A drive motor (6) is fixedly connected to the upper end of the door frame (1), and a spur gear (7) is fixedly connected to the output shaft of the drive motor (6). Moving rods (8) are symmetrically arranged on the upper end of the door frame (1). A rack (12) is fixedly connected to one side of one of the moving rods (8), and protrusions (5) are symmetrically arranged on one side of both moving rods (8).
2. A coal mill hot air isolation door to prevent leakage as described in claim 1, characterized in that: A coal mill inlet (2) is provided on one side of the door frame (1).
3. A coal mill hot air isolation door to prevent leakage as described in claim 1, characterized in that: A connecting rod (9) is fixedly connected between the two moving rods (8).
4. A coal mill hot air isolation door to prevent leakage as described in claim 1, characterized in that: The spur gear (7) meshes with the rack (12).