Feeding device applied to boiler

By designing a boiler feeding device with a rotating ring and a stirring rod, the problem of insufficient mixing of materials in traditional devices is solved, and more efficient combustion and heat utilization is achieved, and energy consumption and environmental pollution are reduced.

CN119594419APending Publication Date: 2025-03-11HUBEI XIANGYANG POWER GENERATION CO LTD
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Patent Information

Application Number
CN202411681991.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-03-11

AI Technical Summary

Technical Problem

Traditional boiler feeding devices lack effective mixing and stirring functions, resulting in the inability to fully mix materials before entering the boiler, affecting combustion efficiency and thermal energy utilization, and increasing energy consumption and environmental pollution risks.

Method used

A feeding device including a rotating ring, a stirring rod and a driving motor is designed to realize the mixing and stirring of materials in the feeding tube through mechanical structures such as meshing connections and planetary gears.

Benefits of technology

It significantly improves the mixing and stirring effect of materials during feeding, improves combustion efficiency and thermal energy utilization, and reduces the risk of energy consumption and environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the related technical field of boilers, in particular to a feeding device applied to a boiler, which comprises a boiler body and a feeding pipe, the feeding pipe is fixedly mounted at the upper end of the boiler body, a partition plate is fixedly mounted in the feeding pipe, a rotating ring is rotatably mounted on the inner wall of the boiler body, and a first rotating rod is rotatably mounted on the periphery of the upper end of the rotating ring; a first stirring rod is fixedly installed on the periphery of the first rotating rod, a second connecting tooth block is fixedly installed on the inner wall of the furnace body, a first connecting tooth block is fixedly installed on the periphery of the rotating ring, a driving motor is fixedly installed on the outer wall of the feeding pipe, and a first connecting gear is in meshed connection with the first connecting tooth block; and a rotating sleeve is arranged in the middle of the feeding pipe, the rotating sleeve is rotationally installed between the first rotating rods, a movable sleeve is installed in the middle of the rotating sleeve in an inserted mode, and a second stirring rod is fixedly installed on the periphery of the movable sleeve. According to the material mixing device, materials in the feeding pipe can be stirred, and the material mixing effect is improved.
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Description

Technical Field

[0001] This invention relates to the field of boiler-related technology, specifically to a feeding device for boilers. Background Technology

[0002] In industrial production, boilers are important energy conversion devices, and their stable operation is crucial to the entire production process. However, traditional boiler feeding systems often have some significant shortcomings, especially in material conveying and mixing.

[0003] Existing boiler feeding devices typically only transport materials from storage containers into the boiler, lacking effective mixing and agitation functions. This results in various materials not being adequately mixed before entering the boiler, thus affecting combustion efficiency and thermal energy utilization. Furthermore, uneven material distribution can lead to uneven temperature fields inside the boiler, increasing the risk of localized overheating or incomplete combustion. This not only reduces production efficiency but also increases energy consumption and environmental pollution.

[0004] To address these issues, several improvements have been proposed, such as adding mixing equipment outside the feed pipe or employing a multi-stage feeding system. However, these methods often increase system complexity and cost, and the mixing effect remains unsatisfactory. Therefore, developing a device capable of directly mixing and stirring materials during the feeding process is particularly urgent. Summary of the Invention

[0005] To address the aforementioned problems, the present invention provides a feeding device for boilers.

[0006] This invention adopts the following technical solution: a feeding device for a boiler, comprising a boiler body and a feeding pipe, wherein the feeding pipe is fixedly installed at the upper end of the boiler body, a baffle is fixedly installed inside the feeding pipe, a rotating ring is rotatably installed on the inner wall of the boiler body, a first rotating rod is rotatably installed on the outer periphery of the upper end of the rotating ring, a first stirring rod is fixedly installed on the outer periphery of the first rotating rod, a second connecting tooth block is fixedly installed on the inner wall of the boiler body, a second connecting gear is provided on the lower side of the first rotating rod and meshes with the second connecting tooth block, the first connecting tooth block is fixedly installed on the outer periphery of the rotating ring, a drive motor is fixedly installed on the outer wall of the feeding pipe, a first connecting gear is fixedly installed on the lower end of the drive motor through its output shaft, the first connecting gear meshes with the first connecting tooth block, a rotating sleeve is provided in the middle of the feeding pipe, the rotating sleeve is rotatably installed between each of the first rotating rods, a movable sleeve is inserted into the middle of the rotating sleeve, and a second stirring rod is fixedly installed on the outer periphery of the movable sleeve.

[0007] As a further description of the above technical solution: a limiting rotation groove is provided on the periphery of the feeding pipe and is rotatably connected to the rotating ring; the first connecting gear is provided in the limiting rotation groove; a through cavity is provided on the periphery of the feeding pipe and is interconnected with the limiting rotation groove; and the first connecting gear is rotatably installed in the through cavity.

[0008] As a further description of the above technical solution: a limiting rotation cavity is formed inside the rotating ring, and the second connecting gear is rotatably installed inside the limiting rotation cavity.

[0009] As a further description of the above technical solution: a limiting rotating frame is fixedly installed on the upper end of the rotating ring, and an external gear ring, a driven gear and several planetary gears are rotatably installed inside the limiting rotating frame, with the planetary gears meshing between the external gear ring and the driven gear.

[0010] As a further description of the above technical solution: the external gear ring is fixedly installed on the upper end of the second connecting gear, the driven gear is fixedly installed on the lower end of the first rotating rod, a rotating seat is fixedly installed inside the limiting rotating frame, and the planetary gear is rotatably connected to the rotating seat.

[0011] As a further description of the above technical solution: the partition is funnel-shaped, a through hole is provided in the middle of the partition, a sealing block is fixedly installed at the lower end of the movable sleeve, the sealing block is inserted into the through hole, and the sealing block is spindle-shaped.

[0012] As a further description of the above technical solution: a connecting plate is fixedly installed at the upper end of the inner cavity of the feeding pipe, a fixing rod is fixedly installed at the lower end of the connecting plate, the movable sleeve is installed around the fixing rod, a reciprocating groove is opened around the fixing rod, and a protrusion that is slidably connected to the reciprocating groove is fixedly installed on the inner wall of the movable sleeve.

[0013] As a further description of the above technical solution: a connecting seat is fixedly installed on the upper end of the rotating sleeve, the connecting seat is rotatably installed on the upper end of each of the first rotating rods, a limit slot is opened on the periphery of the rotating sleeve, a limit plug is fixedly installed on the periphery of the movable sleeve and is inserted into the limit slot, and the second stirring rod is fixedly installed on the periphery of the limit plug.

[0014] This invention provides an improved feeding device for boilers, which has the following improvements and advantages compared with the prior art:

[0015] Firstly, the meshing connection between the first connecting gear and the first connecting tooth block enables the drive motor to rotate the rotating ring inside the feed pipe, thereby driving the first stirring rod and the second stirring rod to rotate. This allows for the mixing and stirring of the materials entering the feed pipe. Furthermore, the meshing connection between the second connecting gear and the second connecting tooth block allows the first stirring rod to rotate on its own axis as it revolves around the second stirring rod, significantly improving the mixing and stirring effect.

[0016] Secondly, through the meshing connection between the planetary gear, the external gear ring, and the driven gear, the rotational speed of the first rotating rod can be increased when the rotating ring rotates, thereby further improving the stirring effect.

[0017] Thirdly, through the sliding connection between the reciprocating groove and the protrusion and the insertion connection between the limiting block and the limiting slot, when the movable sleeve and the second stirring rod rotate, the second stirring rod and the sealing block can be driven to move up and down, which can improve the mixing effect and prevent the material from causing blockage in the through hole. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the external structure of the furnace body and feed pipe provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the feed pipe and stirring rod provided in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the furnace body and feed pipe provided in an embodiment of the present invention;

[0022] Figure 4 Provided for embodiments of the present invention Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0023] Figure 5 Provided for embodiments of the present invention Figure 3 Enlarged schematic diagram of the structure at point B;

[0024] Figure 6 This is a schematic diagram of the internal disassembled structure of the rotating ring and planetary gear provided in an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the internal structure of the rotating ring provided in an embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the internal disassembled structure of the rotating sleeve and the movable sleeve provided in an embodiment of the present invention.

[0027] In the picture:

[0028] 1. Furnace body; 11. Feed pipe; 12. Baffle plate; 13. Through hole;

[0029] 2. Drive motor; 20. Second connecting tooth block; 21. First connecting gear; 22. Rotating ring; 23. First connecting tooth block; 24. Limiting rotation groove; 25. Through cavity; 26. Second connecting gear; 27. First rotating rod; 28. Limiting rotation cavity; 29. ​​First stirring rod;

[0030] 3. Rotating sleeve; 31. Connecting seat; 32. Movable sleeve; 33. Second stirring rod;

[0031] 4. Limiting rotating frame; 41. External gear ring; 42. Planetary gear; 43. Rotating seat; 44. Driven gear;

[0032] 5. Fixing rod; 50. Connecting plate; 51. Reciprocating groove; 52. Protrusion; 53. Limiting slot; 54. Limiting insert; 55. Sealing block. Detailed Implementation

[0033] To make the technical means, creative features, objectives, and effects of this invention readily understandable, the invention is further described below with reference to specific illustrations. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Please see Figure 1 - Figure 8 This invention provides a technical solution: a feeding device for a boiler, comprising a boiler body 1 and a feeding pipe 11. The feeding pipe 11 is fixedly installed on the upper end of the boiler body 1. A baffle 12 is fixedly installed inside the feeding pipe 11. A rotating ring 22 is rotatably installed on the inner wall of the boiler body 1. A first rotating rod 27 is rotatably installed on the outer periphery of the upper end of the rotating ring 22. A first stirring rod 29 is fixedly installed on the outer periphery of the first rotating rod 27. A second connecting tooth block 20 is fixedly installed on the inner wall of the boiler body 1. The lower side of the first rotating rod 27 is provided with a connection to the second connecting tooth block 20. A second connecting gear 26 is engaged with the rotating ring 22. A first connecting tooth block 23 is fixedly installed around the rotating ring 22. A drive motor 2 is fixedly installed on the outer wall of the feed pipe 11. A first connecting gear 21 is fixedly installed at the lower end of the drive motor 2 through its output shaft. The first connecting gear 21 is engaged with the first connecting tooth block 23. A rotating sleeve 3 is provided in the middle of the feed pipe 11. The rotating sleeve 3 is rotatably installed between each of the first rotating rods 27. A movable sleeve 32 is inserted into the middle of the rotating sleeve 3. A second stirring rod 33 is fixedly installed around the movable sleeve 32.

[0035] Working principle: When in use, the material is put into the feeding pipe 11 and the drive motor 2 is started. Through the meshing connection between the first connecting gear 21 and the first connecting tooth block 23, the rotating ring 22 and its upper first rotating rod 27 and movable sleeve 32 are driven to rotate in the feeding pipe 11. Through the first rotating rod 27 and the first stirring rod 29 and the second stirring rod 33 around the movable sleeve 32, the material is mixed and stirred.

[0036] Through the meshing connection between the second connecting gear 26 and the second connecting tooth block 20, when the rotating ring 22 rotates, it can drive the first stirring rod 29 to rotate on its own at the upper end of the rotating ring 22, thereby further improving the mixing effect of the material.

[0037] In another embodiment of the present invention, a limiting rotation groove 24 is provided on the periphery of the feed pipe 11 and is rotatably connected to the rotating ring 22. The first connecting tooth block 23 is disposed in the limiting rotation groove 24. A through cavity 25 is provided on the periphery of the feed pipe 11 and communicates with the limiting rotation groove 24. The first connecting gear 21 is rotatably installed in the through cavity 25. A limiting rotation cavity 28 is provided in the rotating ring 22, and the second connecting gear 26 is rotatably installed in the limiting rotation cavity 28.

[0038] Specifically, the limiting rotation groove 24 can not only restrict the movement direction of the rotating ring 22, but also reserve the activity space of the first connecting tooth block 23 to avoid interference between the first connecting tooth block 23 and the feed pipe 11.

[0039] A through cavity 25 is provided to provide space for the first connecting gear 21 and the first connecting tooth block 23 to mesh and connect.

[0040] The limiting rotation cavity 28 can both restrict the movement direction of the second connecting gear 26 and provide space for the second connecting gear 26 and the second connecting tooth block 20 to mesh and connect.

[0041] In another embodiment of the present invention, a limiting rotating frame 4 is fixedly installed on the upper end of the rotating ring 22. An external gear ring 41, a driven gear 44, and several planetary gears 42 are rotatably installed inside the limiting rotating frame 4. The planetary gears 42 are meshed between the external gear ring 41 and the driven gear 44. The external gear ring 41 is fixedly installed on the upper end of the second connecting gear 26, and the driven gear 44 is fixedly installed on the lower end of the first rotating rod 27. A rotating seat 43 is fixedly installed inside the limiting rotating frame 4, and the planetary gears 42 are rotatably connected to the rotating seat 43.

[0042] Through the meshing connection between the planetary gear 42, the external gear ring 41, and the driven gear 44, when the second connecting gear 26 drives the external gear ring 41 to rotate, the rotation speed of the driven gear 44 and the first rotating rod 27 can be increased, thereby improving the mixing effect of the first stirring rod 29 on the material.

[0043] In another embodiment of the present invention, the partition 12 is funnel-shaped, and a through hole 13 is provided in the middle of the partition 12. A sealing block 55 is fixedly installed at the lower end of the movable sleeve 32. The sealing block 55 is inserted into the through hole 13 and is spindle-shaped. A connecting plate 50 is fixedly installed at the upper end of the inner cavity of the feed pipe 11. A fixing rod 5 is fixedly installed at the lower end of the connecting plate 50. The movable sleeve 32 is installed around the fixing rod 5. A reciprocating groove 51 is provided around the fixing rod 5. A protrusion 52 that slides through the reciprocating groove 51 is fixedly installed on the inner wall of the movable sleeve 32. A connecting seat 31 is fixedly installed at the upper end of the rotating sleeve 3. The connecting seat 31 is rotatably installed on the upper end of each of the first rotating rods 27. A limit slot 53 is provided around the rotating sleeve 3. A limit plug 54 that is inserted into the limit slot 53 is fixedly installed around the movable sleeve 32. The second stirring rod 33 is fixedly installed around the limit plug 54.

[0044] The through hole 13 is provided to retain the material at its upper end, ensuring the mixing effect of the first stirring rod 29 and the second stirring rod 33 on the material.

[0045] Furthermore, when the first rotating rod 27 revolves around the rotating sleeve 3, the connecting seat 31 can drive the rotating sleeve 3 to rotate with the first rotating rod 27, thereby driving the second stirring rod 33 to rotate.

[0046] Furthermore, through the sliding connection between the protrusion 52 and the reciprocating groove 51, and the insertion connection between the limiting plug 54 and the limiting slot 53, the rotating sleeve 3 can drive the movable sleeve 32 to reciprocate up and down around the fixed rod 5, which in turn can drive the second stirring rod 33 and the sealing block 55 to reciprocate up and down. This can improve the mixing effect of the second stirring rod 33 on the material, and also allow the sealing block 55 to continuously insert or separate from the through hole 13, thus preventing the material from causing blockage in the through hole 13 during material transportation.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for a boiler, comprising a furnace body (1) and a feeding pipe (11), characterized in that: The feed pipe (11) is fixedly mounted on the upper end of the furnace body (1), a partition (12) is fixedly mounted inside the feed pipe (11), a rotating ring (22) is rotatably mounted on the inner wall of the furnace body (1), a first rotating rod (27) is rotatably mounted on the outer periphery of the upper end of the rotating ring (22), a first stirring rod (29) is fixedly mounted on the outer periphery of the first rotating rod (27), a second connecting tooth block (20) is fixedly mounted on the inner wall of the furnace body (1), a second connecting gear (26) meshingly connected to the second connecting tooth block (20) is provided on the lower side of the first rotating rod (27), and the rotating ring (22) A first connecting tooth block (23) is fixedly installed on the periphery, a driving motor (2) is fixedly installed on the outer wall of the feeding tube (11), a first connecting gear (21) is fixedly installed on the lower end of the driving motor (2) through its output shaft, the first connecting gear (21) is meshingly connected with the first connecting tooth block (23), a rotating sleeve (3) is provided in the middle of the feeding tube (11), the rotating sleeve (3) is rotatably installed between each first rotating rod (27), a movable sleeve (32) is inserted in the middle of the rotating sleeve (3), and a second stirring rod (33) is fixedly installed on the periphery of the movable sleeve (32).

2. A feeding device for a boiler according to claim 1, characterized in that: The feeding pipe (11) is provided with a limit rotation groove (24) rotatably connected to the rotating ring (22) on its periphery, the first connecting gear block (23) is arranged in the limit rotation groove (24), the feeding pipe (11) is provided with a through cavity (25) in communication with the limit rotation groove (24) on its periphery, and the first connecting gear (21) is rotatably installed in the through cavity (25).

3. A feeding device for a boiler according to claim 1, characterized in that: A limited rotation cavity (28) is provided in the rotation ring (22), and the second connecting gear (26) is rotatably mounted in the limited rotation cavity (28).

4. A feeding device for a boiler according to claim 1, characterized in that: A limited rotation frame (4) is fixedly mounted on the upper end of the rotation ring (22), an outer gear ring (41), a driven gear (44) and a plurality of planetary gears (42) are rotatably mounted inside the limited rotation frame (4), and the planetary gears (42) are meshedly mounted between the outer gear ring (41) and the driven gear (44).

5. A feeding device for a boiler according to claim 4, characterized in that: The outer gear ring (41) is fixedly mounted on the upper end of the second connecting gear (26), the driven gear (44) is fixedly mounted on the lower end of the first rotating rod (27), a rotating seat (43) is fixedly mounted in the limit rotating frame (4), and the planetary gear (42) is rotatably connected to the rotating seat (43).

6. A feeding device for a boiler according to claim 1, characterized in that: The partition (12) is arranged in a funnel shape, a through hole (13) is opened in the middle of the partition (12), a sealing block (55) is fixedly installed at the lower end of the movable sleeve (32), the sealing block (55) is inserted and installed in the through hole (13), and the sealing block (55) is arranged in a spindle shape.

7. A feeding device for a boiler according to claim 6, characterized in that: A connecting plate (50) is fixedly installed at the upper end of the inner cavity of the feeding pipe (11), a fixing rod (5) is fixedly installed at the lower end of the connecting plate (50), the movable sleeve (32) is installed on the periphery of the fixing rod (5), a reciprocating groove (51) is opened on the periphery of the fixing rod (5), and a protrusion (52) slidably connected to the reciprocating groove (51) is fixedly installed on the inner wall of the movable sleeve (32).

8. A feeding device for a boiler according to claim 7, characterized in that: A connecting seat (31) is fixedly mounted on the upper end of the rotating sleeve (3), and the connecting seat (31) is rotatably mounted on the upper end of each first rotating rod (27). A limiting slot (53) is provided on the periphery of the rotating sleeve (3), and a limiting plug (54) plug-connected to the limiting slot (53) is fixedly mounted on the periphery of the movable sleeve (32), and the second stirring rod (33) is fixedly mounted on the periphery of the limiting plug (54).