Novel biomass combustion furnace ash removal device

Abstract

The utility model discloses a novel biomass combustion furnace deashing device, which relates to the technical field of combustion furnaces, and comprises a furnace body, a support frame is fixed on the inner wall of the furnace body, two groups of fire grates are mounted at the top of the support frame, the fire grates are semicircular, a mounting component for mounting the fire grates is arranged at the top of the support frame, and the mounting component is fixed on the inner wall of the furnace body. The utility model has the beneficial effects that when the cam rotates to a high position, the two groups of fire grates are driven to vibrate up and down, the fire grates are vibrated to clean ash through the repeated rotation of the cam, the fire grate structure is a trapezoidal structure gap with a small upper part and a large lower part, the effect of only falling ash without falling materials is achieved under the vibration effect, the air inlet of a hearth is facilitated, and the energy consumption is reduced. A good ash removal effect is achieved under the conditions that the cam keeps a reasonable stroke and an existing combustion layer is not damaged, the two fire grates are combined into a circle, the fire grates are of a two-piece structure, and the fire grates can be conveniently taken out from an access hole.

Description

Technical Field

[0001] This utility model relates to the field of combustion furnace technology, and in particular to a novel ash removal device for biomass combustion furnaces. Background Technology

[0002] A biomass combustion furnace is a device that converts biomass fuels (such as agricultural waste, forestry residues, energy crops, etc.) into thermal energy. It is characterized by being renewable, low-carbon, and environmentally friendly. Biomass combustion furnaces play an important role in the renewable energy transition and are especially suitable for distributed energy scenarios. When using a biomass combustion furnace, an ash removal device is required to clean the furnace ash.

[0003] Existing ash removal devices typically use levers to vibrate and clean the grate. This method disrupts the original combustion layer, resulting in excessive ash buildup in the furnace, high levels of smoke and dust at the chimney outlet, and easy ash accumulation in the radiators. It also creates significant air resistance within the furnace, hindering combustion. Biomass pellets tend to coke, clogging the grate's air intake gaps, leading to incomplete combustion, low thermal energy conversion rates, and low heat exchange efficiency in the radiators. Under the same heat energy demand, biomass fuel pellet consumption is high, and the system remains in a high-feeding state. This high-feeding state easily causes grate blockage, requiring combustion to be stopped and manual intervention, increasing labor costs. Furthermore, this ash removal method generates significant environmental noise, and the high temperature within the furnace is conducted to the vibration motor, resulting in a high motor failure rate. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A novel biomass combustion furnace ash removal device includes a furnace body, a support frame fixed to the inner wall of the furnace body, two sets of grates installed on the top of the support frame with a gap between them, the grates being semi-circular in shape, an installation assembly for mounting the grates on the top of the support frame, and a drive assembly for vibrating and ash removing the grates inside the furnace body.

[0007] The mounting assembly includes a mounting block that snaps onto the outside of the grate, with connecting rods fixed on both sides of the mounting block, and a mounting bracket rotatably connected to one end of each connecting rod.

[0008] The drive assembly includes a drive motor installed on the outside of the furnace body. A drive rod is installed at the output end of the drive motor. A cam that drives the grate to vibrate and clean the ash is fixed on the outside of the drive rod. The center of the cam and the gap between the grate and the grate are on the same vertical line.

[0009] As a preferred embodiment of the novel biomass combustion furnace ash removal device of this utility model, the outer side of the grate is provided with an installation groove, the inner wall of the installation block is fixed with a limiting plate, and the outer side of the limiting plate is engaged with the inner wall of the installation groove.

[0010] As a preferred embodiment of the novel biomass combustion furnace ash removal device of this utility model, a fixing frame is fixed on the outer side of the furnace body, and a coupling is fixed on the output end of the drive motor.

[0011] In a preferred embodiment of the novel biomass combustion furnace ash removal device of this utility model, a partition is fixed to the top of the support frame, and a limit sleeve is fixed to the inner wall of the partition.

[0012] As a preferred embodiment of the novel biomass combustion furnace ash removal device of this utility model, a feed pipe is provided on the outer side of the furnace body, a hopper is provided at the top of the feed pipe, and an air outlet is provided at the top of the furnace body.

[0013] As a preferred embodiment of the novel biomass combustion furnace ash removal device of this utility model, the outer side of the furnace body is provided with an inspection port for disassembling the grate, and an inspection door is provided on one side of the inspection port.

[0014] As a preferred embodiment of the novel biomass combustion furnace ash removal device of this utility model, wherein: a sealing gasket for improving the sealing performance of the furnace body is fixed on one side of the inspection port, a limit frame is rotatably connected to the top of the inspection port, a limit block is fixed on one side of the inspection door, the outer side of the limit block is engaged with the inner wall of the limit frame, and a pull ring is fixed on the top of the grate.

[0015] The beneficial effects of this utility model are as follows: When the cam rotates to the high position, it will drive the two sets of grates to rotate. Through the repeated rotation of the cam, the grates will vibrate and clean the ash, achieving the effect of only dropping ash and not dropping material, so that the fuel can burn completely. The cam maintains a reasonable stroke and achieves a good ash cleaning effect without damaging the existing combustion layer. The shape of the grate is semi-circular, and the two sets of grates are combined into a circle. The grate adopts a two-piece structure, which makes it easy to remove the grate from the maintenance port. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is an overall structural diagram of the ash removal device for a new type of biomass combustion furnace.

[0018] Figure 2 This is a schematic diagram of the drive component in a novel biomass combustion furnace ash removal device.

[0019] Figure 3 This is a schematic diagram of the structure of a new type of biomass combustion furnace ash removal device where the cam is in a high-position motion state.

[0020] Figure 4 A schematic diagram of the components installed in the ash removal device of a new type of biomass combustion furnace.

[0021] Figure 5 This is a schematic diagram of the maintenance port in the ash removal device of a new type of biomass combustion furnace.

[0022] The following are the labeling elements in the diagram: 1. Furnace body; 2. Support frame; 3. Grate; 4. Mounting assembly; 41. Mounting block; 42. Connecting rod; 43. Mounting bracket; 5. Drive assembly; 51. Drive motor; 52. Drive rod; 53. Cam; 6. Mounting groove; 7. Limiting plate; 8. Fixing bracket; 9. Coupling; 10. Limiting sleeve; 11. Partition plate; 12. Feed pipe; 13. Hopper; 14. Air outlet; 15. Inspection port; 16. Inspection door; 17. Sealing gasket; 18. Limiting bracket; 19. Limiting block; 20. Pull ring. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example 1:

[0027] Reference Figures 1-5 This is the first embodiment of the present invention. This embodiment provides a novel biomass combustion furnace ash removal device, including a furnace body 1. A support frame 2 is fixed on the inner wall of the furnace body 1. Two sets of grates 3 are installed on the top of the support frame 2. The grates 3 are semi-circular in shape. An installation component 4 for installing the grates 3 is provided on the top of the support frame 2. A drive component 5 for vibrating and ash removing the grates 3 is provided inside the furnace body 1.

[0028] The furnace body 1 is a combustion furnace in the prior art, which is a device that converts biomass fuel into heat energy. It has the characteristics of being renewable, low-carbon and environmentally friendly, which will not be elaborated here. There is a gap between the two sets of grates 3, which is narrow at the top and wide at the bottom to facilitate subsequent air passage and ash leakage. The shape of the grates 3 is semi-circular. The two sets of grates 3 are combined into a circle to facilitate subsequent disassembly of the grates 3. The grates 3 are installed by the mounting component 4, and the grates 3 can rotate inside the mounting component 4, which improves the stability of the subsequent vibration and ash cleaning of the grates 3. The drive component 5 can vibrate and clean the grates 3, which facilitates natural air intake below the grates 3 and allows the biomass combustion particles to continue to burn. Moreover, this ash cleaning action does not produce ash in the furnace, greatly reducing the ash accumulation in the radiator and improving the heat exchange rate. Since the biomass particles burn completely, there is no obvious smoke or dust at the chimney outlet.

[0029] The mounting assembly 4 includes a mounting block 41 that snaps onto the outside of the grate 3. Both sides of the mounting block 41 are fixed with connecting rods 42, and one end of the connecting rods 42 is rotatably connected to a mounting bracket 43.

[0030] The inner wall of the mounting block 41 is engaged with the outer side of the grate 3, and the mounting frame 43 is fixed to the top of the support frame 2. When the grate 3 vibrates, it will drive the mounting block 41 and the connecting rod 42 to rotate, so that the connecting rod 42 rotates on the inner wall of the mounting frame 43, thereby improving the stability of the grate 3.

[0031] The drive assembly 5 includes a drive motor 51 installed on the outside of the furnace body 1. A drive rod 52 is installed at the output end of the drive motor 51. A cam 53 is fixed on the outside of the drive rod 52 to drive the grate 3 to vibrate and clean the ash.

[0032] The outer side of the drive rod 52 is rotatably connected to the inner wall of the furnace body 1, and the drive motor 51 drives the drive rod 52 and the cam 53 to rotate, as shown. Figure 3 As shown, when the cam 53 rotates to the high position, it will drive the two sets of grates 3 to rotate. Through the repeated rotation of the cam 53, the grates 3 will vibrate and clean the ash, achieving the effect of only dropping ash and not material, so that the fuel can burn completely.

[0033] Example 2:

[0034] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, an installation groove 6 is provided on the outer side of the grate 3, and a limiting plate 7 is fixed on the inner wall of the mounting block 41. The outer side of the limiting plate 7 is engaged with the inner wall of the installation groove 6.

[0036] By inserting the grate 3 into the mounting block 41, the limiting plate 7 is engaged with the mounting groove 6, thereby achieving the effect of installing the grate 3. The grate 3 will not detach from the mounting block 41 during vibration cleaning. Furthermore, the grate 3 can be quickly disassembled and cleaned by pulling it out of the mounting block 41.

[0037] Specifically, a mounting bracket 8 is fixed to the outside of the furnace body 1, and a coupling 9 is fixed to the output end of the drive motor 51.

[0038] The drive motor 51 is horizontally mounted on one side of the fixed frame 8, and the drive rod 52 is fixed to one end of the coupling 9. The drive motor 51 can drive the coupling 9 and the drive rod 52 to rotate.

[0039] Specifically, a partition 11 is fixed to the top of the support frame 2, and a limit sleeve 10 is fixed to the inner wall of the partition 11.

[0040] The baffle 11 can prevent the fuel from falling and scattering, and the limiting sleeve 10 can limit the grate 3.

[0041] Example 3:

[0042] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0043] Specifically, a feed pipe 12 is provided on the outside of the furnace body 1, a hopper 13 is provided on the top of the feed pipe 12, and an air outlet 14 is provided on the top of the furnace body 1.

[0044] Fuel can be automatically delivered into the furnace body 1 through the hopper 13 and the spiral feed pipe 12.

[0045] Specifically, an inspection port 15 for disassembling the grate 3 is provided on the outer side of the furnace body 1, and an inspection door 16 is provided on one side of the inspection port 15.

[0046] The grate 3 can be easily removed through the inspection port 15. The grate 3 adopts a two-piece structure, which makes it easy to remove the grate 3 from the inspection port 15. If a single piece of grate 3 is used, the size will be too large and it will be inconvenient to remove. If the size of the inspection port 15 is increased, it will not be conducive to the combustion effect in the furnace.

[0047] Specifically, a sealing gasket 17 to improve the sealing of the furnace body 1 is fixed on one side of the inspection port 15, a limit frame 18 is rotatably connected to the top of the inspection port 15, a limit block 19 is fixed on one side of the inspection door 16, the outer side of the limit block 19 is engaged with the inner wall of the limit frame 18, and a pull ring 20 is fixed on the top of the grate 3.

[0048] The sealing gasket 17 improves the sealing performance of the furnace body 1. The rotating limit frame 18 engages with the limit block 19 to limit the maintenance door 16. The pull ring 20 facilitates the subsequent removal of the grate 3 from the furnace body 1.

[0049] In use, the grate 3 is secured inside the mounting block 41, causing the limiting plate 7 to engage inside the mounting groove 6, thus achieving the installation effect of the grate 3. The grate 3 will not detach from the mounting block 41 during vibration cleaning. Furthermore, the grate 3 can be quickly disassembled and cleaned by subsequently pulling it out of the mounting block 41. When the grate 3 vibrates, it drives the mounting block 41 and connecting rod 42 to rotate, causing the connecting rod 42 to rotate on the inner wall of the mounting frame 43, improving the stability of the grate 3. The drive motor 51 can drive the coupling 9 and drive rod 52 to rotate. Figure 3 As shown, when the cam 53 rotates to the high position, it will drive the two sets of grates 3 to rotate. Through the repeated rotation of the cam 53, the grates 3 will vibrate and clean the ash. The gap of the grates 3 is designed as a trapezoidal structure that is narrow at the top and wide at the bottom, so as to achieve the effect of only ash falling and not material falling, so that the fuel can burn completely. The cam 53 maintains a reasonable stroke and achieves a good ash cleaning effect without damaging the existing combustion layer. It is convenient for natural air intake below the grates 3 to allow the biomass combustion particles to burn continuously. Moreover, this ash cleaning action will not produce ash in the furnace, greatly reducing the ash accumulation in the radiator. There is no obvious smoke and dust at the chimney outlet. The shape of the grates 3 is semi-circular. The two sets of grates 3 form a circle. The grates 3 adopt a two-piece structure, which makes it easy to remove the grates 3 from the inspection port 15. If a whole piece of grates 3 structure is used, the size will be too large and inconvenient to remove. If the size of the inspection port 15 is increased, it will not be conducive to the combustion effect in the furnace.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A new type of biomass combustion furnace ash removal device, comprising a furnace body (1), characterized in that: The inner wall of the furnace body (1) is fixed with a support frame (2), the top of the support frame (2) is provided with two groups of fire grates (3), and the two groups of fire grates (3) have gaps therebetween, the shape of the fire grate (3) is semicircular, the top of the support frame (2) is provided with a mounting assembly (4) for mounting the fire grate (3), and the inside of the furnace body (1) is provided with a driving assembly (5) for vibrating and cleaning the fire grate (3). The mounting assembly (4) comprises a mounting block (41) clamped on the outer side of the fire grate (3), and the two sides of the mounting block (41) are fixed with connecting rods (42), and one end of the connecting rod (42) is rotatably connected with a mounting frame (43). The driving assembly (5) comprises a driving motor (51) mounted on the outer side of the furnace body (1), the output end of the driving motor (51) is provided with a driving rod (52), the outer side of the driving rod (52) is fixed with a cam (53) for driving the fire grate (3) to vibrate and clean, and the center of the cam (53) is on the same vertical line with the gap of the fire grate (3).

2. The new biomass combustion furnace ash removal device according to claim 1, characterized in that: The outer side of the fire grate (3) is provided with a mounting groove (6), the inner wall of the mounting block (41) is fixed with a limiting plate (7), and the outer side of the limiting plate (7) is clamped with the inner wall of the mounting groove (6).

3. The new biomass combustion furnace ash removal device according to claim 1, characterized in that: The outer side of the furnace body (1) is fixed with a fixing frame (8), and the output end of the driving motor (51) is fixed with a shaft coupling (9).

4. The new biomass combustion furnace ash removal device according to claim 1, characterized in that: The top of the support frame (2) is fixed with a partition plate (11), and the inner wall of the partition plate (11) is fixed with a limiting sleeve (10).

5. The new biomass combustion furnace ash removal device according to claim 1, characterized in that: The outer side of the furnace body (1) is provided with a feeding pipe (12), the top of the feeding pipe (12) is provided with a hopper (13), and the top of the furnace body (1) is provided with an air outlet (14).

6. The new biomass combustion furnace ash removal device according to claim 1, characterized in that: The outer side of the furnace body (1) is provided with an access hole (15) for disassembling the fire grate (3), and the access hole (15) is provided with an access door (16) on one side.

7. The new biomass combustion furnace ash removal device according to claim 6, characterized in that: The outer side of the access hole (15) is fixed with a sealing gasket (17) for improving the sealing performance of the furnace body (1), the top of the access hole (15) is rotatably connected with a limiting frame (18), one side of the access door (16) is fixed with a limiting block (19), the outer side of the limiting block (19) is clamped with the inner wall of the limiting frame (18), and the top of the fire grate (3) is fixed with a pull ring (20).

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