Shaft end sealing device of star-shaped discharger
Through the shaft end sealing device of the star discharger and nitrogen sealing technology, the problem of coal powder leakage of the star discharger is solved, and environmental sanitation is improved and safety is improved, reducing resource waste and operating costs.
Patent Information
- Application Number
- CN202421789951.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-07-26
AI Technical Summary
During the star unloader, the coal powder leaks severely during the powdering process, resulting in environmental pollution, safety hazards and waste of resources, which is difficult to effectively solve in the existing technology.
A star discharger shaft end sealing device is designed, using sealing ring and nitrogen sealing technology, reducing pressure through the gap of the pack, and using micro positive pressure nitrogen to seal the coal powder in the star discharger housing.
Effectively reduce coal dust escape, reduce fire hazards, save energy, reduce manual cleaning workload, reduce safety risks, reduce coal dust consumption, and save company costs.
Smart Images
Figure CN223117567U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of the powder feeding system of a star-shaped unloader, and particularly relates to a shaft end sealing device for a star-shaped unloader. Background Art
[0002] During the powder feeding process of the star-shaped unloader, a large amount of pulverized coal escapes. Since the space of the pulverized coal tower is relatively airtight, it is more troublesome to clean. When the pulverized coal leakage is large, manual cleaning is required, and the pulverized coal is flammable, which increases labor and poses a safety hazard. Content of the Utility Model
[0003] The purpose of the utility model is to provide a shaft end sealing device for a star-shaped unloader to solve the problem of existing pulverized coal leakage.
[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:
[0005] The utility model is a shaft end sealing device for a star-shaped unloader, which includes an installation shell, a first connection end and a second connection end. Connecting plates are welded on two opposite surfaces of the installation shell. The first connection end is embedded on one surface of a connecting plate, and the second connection end is embedded on one surface of the other connecting plate. Packing is embedded at one end of both the first connection end and the second connection end. A driving end is embedded at one end of one packing, and a non-driving end is embedded at one end of the other packing. Sealing rings are embedded on the circumferential sides of the connections between the driving end and the non-driving end and the packing, so that the environmental sanitation is easy to maintain, the manual cleaning workload is reduced, the pulverized coal escape is reduced, the fire hazard of the pulverized coal tower is reduced, the pulverized coal waste is reduced, the single consumption of pulverized coal is reduced, energy is saved, the shaft end powder leakage of the star-shaped unloader is eliminated, the safety hazard is reduced, and the company cost is saved.
[0006] Further, first fixing plates and second fixing plates are arranged on the circumferential sides of both sealing rings. The first fixing plates and the second fixing plates are arc-shaped plate structures and are arranged oppositely.
[0007] Further, first extension plates are welded at both ends of both first fixing plates, second extension plates are welded at both ends of both second fixing plates, and the positions of the two first extension plates are adapted to the positions of the two second extension plates.
[0008] Further, fixing bolts are embedded on one surface of both first extension plates. One end of each fixing bolt penetrates one surface of both second extension plates respectively. The circumferential sides of the fixing bolts are slidably matched with the first extension plates and the second extension plates respectively.
[0009] Further, fixing nuts are screwed on the circumferential sides of one end of both fixing bolts, and the two fixing nuts are respectively matched with the other surfaces of the two second extension plates.
[0010] Further, a material receiving port is installed and embedded on the upper surface of the installation housing, and a discharge port is installed and embedded on the lower surface of the installation housing.
[0011] Further, mounting frames are welded on the upper surface of the material receiving port and the lower surface of the discharge port, and a plurality of positioning holes are provided on one surface of each of the two mounting frames.
[0012] The utility model has the following beneficial effects:
[0013] Through the airtight air transformation of the star unloader of the utility model, it is easy to maintain environmental sanitation, reduce the workload of manual cleaning, reduce the escape of pulverized coal, reduce the fire hazard of the pulverized coal tower, reduce the waste of pulverized coal, reduce the unit consumption of pulverized coal, save energy, prevent powder leakage at the shaft end of the star unloader, reduce potential safety hazards, and save the company's costs.
[0014] Of course, it is not necessary for any product implementing the utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0016] Figure 1 It is a schematic structural diagram of a shaft end sealing device of a star unloader of the utility model;
[0017] Figure 2 It is a right view structural diagram of a shaft end sealing device of a star unloader of the utility model;
[0018] Figure 3 It is a front view structural diagram of a shaft end sealing device of a star unloader of the utility model;
[0019] Figure 4 It is a top view structural diagram of a shaft end sealing device of a star unloader of the utility model.
[0020] In the drawings, the list of components represented by each reference numeral is as follows:
[0021] 1, installation housing; 2, connecting plate; 3, first connection end; 4, second connection end; 5, packing; 6, driving end; 7, non-driving end; 8, sealing ring; 9, first fixing plate; 10, second fixing plate; 11, first extension plate; 12, second extension plate; 13, fixing bolt; 14, fixing nut; 15, material receiving port; 16, discharge port; 17, mounting frame; 18, positioning hole. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.
[0024] See also Figures 1-4 As shown, the utility model is a star-shaped discharger shaft end sealing device, comprising a mounting shell 1, a first connecting end 3 and a second connecting end 4, connecting plates 2 are welded on two opposite surfaces of the mounting shell 1, the first connecting end 3 is embedded in a surface of a connecting plate 2, and the second connecting end 4 is embedded in a surface of another connecting plate 2, and packings 5 are embedded at one end of the first connecting end 3 and the second connecting end 4, one end of one packing 5 is embedded with a driving end 6, and one end of the other packing 5 is embedded with a non-driving end 7, and sealing rings 8 are embedded on the side surfaces around the connection between the driving end 6 and the non-driving end 7 and the packing 5, so that environmental hygiene is easy to maintain, the workload of manual cleaning is reduced, the escape of coal powder is reduced, the fire hazard of the coal powder tower is reduced, the waste of coal powder is reduced, the unit consumption of coal powder is reduced, energy is saved, the leakage of powder at the shaft end of the star-shaped discharger is eliminated, the safety hazard is reduced, and the company cost is saved.
[0025] The sides of the two sealing rings 8 are both provided with a first fixing plate 9 and a second fixing plate 10 . The first fixing plate 9 and the second fixing plate 10 are arc-shaped plate structures and are arranged opposite to each other.
[0026] The two first fixing plates 9 are both welded with first extension plates 11 at both ends, and the two second fixing plates 10 are both welded with second extension plates 12 at both ends. The positions of the two first extension plates 11 are adapted to the positions of the two second extension plates 12 .
[0027] Fixing bolts 13 are installed on one surface of the two first extension plates 11. One end of the two fixing bolts 13 passes through one surface of the two second extension plates 12 respectively. The side surfaces of the two fixing bolts 13 are slidably matched with the first extension plates 11 and the second extension plates 12 respectively.
[0028] One end of the circumferential side surfaces of the two fixing bolts 13 is screwed with a fixing nut 14 respectively. The two fixing nuts 14 are respectively matched with the other surfaces of the two second extension plates 12, so that the sealing air originally arranged inside the sealing packing 5 at the driving end 6 and the non-driving end 7 is changed to the outside of the packing 5. Nitrogen with a certain pressure is passed through the sealing air pipe, and the pressure is reduced through the gaps of the packing 5. The pulverized coal is sealed in the star unloader housing with the slightly positive pressure nitrogen inside the packing 5.
[0029] A receiving port 15 is embedded on the upper surface of the installation housing 1, and a discharging port 16 is embedded on the lower surface of the installation housing 1. Installation frames 17 are welded on the upper surface of the receiving port 15 and the lower surface of the discharging port 16 respectively. A number of positioning holes 18 are arranged on one surface of the two installation frames 17.
[0030] Please refer to Figures 1-4 As shown, the present utility model is a shaft end sealing device for a star unloader, and its usage method is as follows: the sealing air originally arranged inside the sealing packing 5 at the driving end 6 and the non-driving end 7 is changed to the outside of the packing 5. Nitrogen with a certain pressure is passed through the sealing air pipe, and the pressure is reduced through the gaps of the packing 5. The pulverized coal is sealed in the star unloader housing with the slightly positive pressure nitrogen inside the packing 5, so that the environmental sanitation is easy to maintain, the manual cleaning workload is reduced, the pulverized coal escape is reduced, the fire hazard of the pulverized coal tower is reduced, the pulverized coal waste is reduced, the single consumption of the pulverized coal is reduced, the energy is saved, the shaft end powder leakage of the star unloader is eliminated, the safety hazard is reduced, and the company cost is saved.
[0031] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0032] The preferred embodiments of the present utility model disclosed above are only used to help explain the present utility model. The preferred embodiments do not elaborate all the details, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can understand and utilize the present utility model well. The present utility model is only limited by the claims and their full scope and equivalents.
Claims
1. A shaft end sealing device for a star feeder, comprising a mounting housing (1), a first connection end (3) and a second connection end (4), characterized in that: Both opposite surfaces of the installation housing (1) are welded with connecting plates (2). The first connection end (3) is fitted on one surface of a connecting plate (2), and the second connection end (4) is fitted on one surface of the other connecting plate (2). Packing (5) is fitted at one end of both the first connection end (3) and the second connection end (4). A driving end (6) is fitted at one end of one packing (5), and a non-driving end (7) is fitted at one end of the other packing (5). Sealing rings (8) are fitted on the circumferential sides of the connections between the driving end (6) and the non-driving end (7) and the packing (5).
2. The shaft end sealing device of a star valve according to claim 1, characterized in that, First fixing plates (9) and second fixing plates (10) are fitted on the circumferential sides of both the sealing rings (8). The first fixing plates (9) and the second fixing plates (10) are arc-shaped plate structures and are arranged oppositely.
3. The shaft end sealing device of a star unloader according to claim 2, characterized in that, First extension plates (11) are welded at both ends of both the first fixing plates (9), and second extension plates (12) are welded at both ends of both the second fixing plates (10). The positions of the two first extension plates (11) are adapted to the positions of the two second extension plates (12).
4. A shaft end sealing device for a star unloader according to claim 3, characterized in that, Fixing bolts (13) are fitted on one surface of both the first extension plates (11). One end of each of the two fixing bolts (13) respectively penetrates one surface of the two second extension plates (12). The circumferential sides of the two fixing bolts (13) are slidably fitted between the first extension plates (11) and the second extension plates (12).
5. The shaft end sealing device of a star unloader according to claim 4, characterized in that, Fixing nuts (14) are screwed on the circumferential sides of one end of both the fixing bolts (13), and the two fixing nuts (14) cooperate with the other surfaces of the two second extension plates (12) respectively.
6. The shaft end sealing device of a star unloader according to claim 1, characterized in that, A material receiving port (15) is fitted on the upper surface of the installation housing (1), and a material discharging port (16) is fitted on the lower surface of the installation housing (1).
7. The shaft end sealing device of a star unloader according to claim 6, characterized in that, Installation frames (17) are welded on the upper surface of the material receiving port (15) and the lower surface of the material discharging port (16). A number of positioning holes (18) are provided on one surface of both the installation frames (17).