Biomass particle combustion furnace

By designing a crushing box and vibration mechanism in a biomass pellet combustion furnace, the problems of ash slag obstacles and insufficient contact between fuel oxygen during combustion are solved, and more efficient combustion and lower smoke emissions are achieved.

CN222978117UActive Publication Date: 2025-06-13ANHUI SHENGXINGDA THERMAL ENERGY CO LTD
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Patent Information

Application Number
CN202421979752.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-15
Publication Date
2025-06-13
Estimated Expiration
2034-08-15

AI Technical Summary

Technical Problem

The existing biomass pellet combustion furnaces generate a large amount of ash during the combustion process, hindering the flow of air and sufficient combustion of fuel, resulting in incomplete combustion, reducing combustion efficiency and thermal energy output. At the same time, there is a large air gap in the bundle of biomass fuel, resulting in insufficient contact between the fuel and oxygen, causing incomplete combustion, reducing combustion efficiency and generating more smoke and pollutants.

Method used

A biomass pellet combustion furnace is designed, including a crushing box and a vibration mechanism. The shattering box crushes the bundle of materials through a crushing knife to increase the contact area between fuel and oxygen; the vibration mechanism periodically impacts the filter screen through the cooperation of spring and circular tube clamps, causing dust to fall and improving combustion efficiency.

Benefits of technology

Through the design of the crushing box, the contact area between fuel and oxygen is improved, the fuel is promoted to burn faster and more completely, the combustion efficiency is improved and the smoke emission is reduced. The use of the vibration mechanism effectively removes dust, further improving the combustion efficiency and allowing the biomass particles to release more heat energy.

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Abstract

The utility model relates to the technical field of particle combustion furnaces, and discloses a biomass particle combustion furnace which comprises a combustion box, the top of the combustion box is fixedly connected with a smashing box, one side of the smashing box is fixedly connected with a conveying cylinder, the top of the outer surface of the conveying cylinder is fixedly connected with a feeding port, and the top of the conveying cylinder is fixedly connected with a discharging port. A motor is fixedly connected to one side of the conveying barrel, a barrel-shaped leakage net is fixedly connected to the inner surface of the smashing box, a filtering net is movably connected to the bottom of the inner surface of the combustion box, a vibration mechanism is movably connected to the bottom of the filtering net, and the vibration mechanism comprises a cylinder. The cylindrical outer surface is movably connected with the bottom of the combustion box, so that the combustion efficiency is improved, biomass particles can release more heat energy in the combustion process, the contact area of fuel and oxygen is larger, the fuel is combusted more quickly and more completely, and the combustion efficiency is improved. The combustion efficiency is improved; and after the fuel is fully combusted, the emission of smoke dust can be reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of particle combustion furnaces, and more specifically to a biomass particle combustion furnace. Background Art

[0002] The working principle of a biomass particle combustion furnace is to mix biomass fuels (such as wood particles, straw particles, rice husk particles) with oxygen, and heat the heat source through heat transfer, oxidation reaction, etc. The biomass particles are gasified at high temperatures, and the generated gas further burns, thereby releasing heat energy.

[0003] Before the biomass particles enter the combustion chamber, the biomass particles need to go through a preheating stage, which helps to remove the moisture therein and improve the combustion efficiency. The biomass particles are mixed with the supplied air in the combustion chamber, and when the particles are heated to a high enough temperature, they start to burn.

[0004] Deficiencies of existing biomass particle combustion furnaces:

[0005] Firstly: A large amount of ash residues are generated when existing biomass particle combustion furnaces are in use. The existing treatment method is to centrally clean the ash residues after combustion is completed. However, ash residues are continuously generated during the combustion process, and the ash residues will cover the combustion area, hindering air flow and the full combustion of the fuel, resulting in incomplete combustion, thereby reducing the combustion efficiency and heat energy output.

[0006] Secondly: When using a biomass particle combustion furnace, the biomass fuels are all put into the combustion furnace in bundles. There are large air gaps in the bundled biomass fuels, resulting in insufficient contact between the fuel and oxygen, thereby causing incomplete combustion. This not only reduces the combustion efficiency but also may generate more soot and pollutants. Summary of the Utility Model

[0007] In order to overcome the above-mentioned defects of the prior art, the utility model provides a biomass particle combustion furnace to solve the problems existing in the above-mentioned background art.

[0008] The utility model provides the following technical solution: A biomass particle combustion furnace includes a combustion box. A crushing box is fixedly connected to the top of the combustion box. A transmission cylinder is fixedly connected to one side of the crushing box. A feed port is fixedly connected to the top of the outer surface of the transmission cylinder. A motor is fixedly connected to one side of the transmission cylinder. A cylindrical strainer is fixedly connected to the inner surface of the crushing box. A filter screen is movably connected to the bottom of the inner surface of the combustion box. A vibration mechanism is movably connected to the bottom of the filter screen. The vibration mechanism includes a cylinder, and the outer surface of the cylinder is movably connected to the bottom of the combustion box;

[0009] Further, the vibration mechanism includes a top block, a filter screen is movably connected to the top of the top block, a cylinder is fixedly connected to the bottom of the top block, a circular pipe clamp is movably connected to the top of the outer surface of the cylinder, a first spring is movably connected to the bottom of the circular pipe clamp, a cylinder is provided on the inner surface of the first spring, and the bottom of the first spring is movably connected to the bottom of the inner surface of the combustion chamber.

[0010] Further, a fixing pin is movably connected to one side of the circular pipe clamp, a push block is fixedly connected to one side of the fixing pin, a pipe sleeve is movably connected to the outer surface of one side of the push block, a second spring is provided on the inner surface of the pipe sleeve, the other side of the second spring is movably connected to the push block, and one side of the pipe sleeve is movably connected to a support plate, and the bottom of the support plate is fixedly connected to the combustion chamber.

[0011] Further, a transmission rod is fixedly connected to the other side of the motor, a conveying wheel is fixedly connected to one side of the outer surface of the transmission rod, a crushing cutter is fixedly connected to the other side of the outer surface of the transmission rod, and a cylindrical filter net is provided on the outer surface of the crushing cutter.

[0012] Further, a connecting block is fixedly connected to one side of the filter screen, the connecting block extends out of the combustion chamber, a pneumatic cylinder is provided on the top of the connecting block, and a telescopic rod is movably connected to the bottom of the pneumatic cylinder.

[0013] Further, support feet are fixedly connected to the four corners of the bottom of the combustion chamber, a blower is movably connected to one side of the combustion chamber, and the top of the filter screen is a combustion chamber.

[0014] The technical effects and advantages of the present utility model:

[0015] 1. When the fuel in the combustion chamber is completely burned, a large amount of dust will remain. To quickly discharge the dust, the pneumatic cylinder is started to make the telescopic rod move downward quickly, so that the connecting block moves downward quickly, and finally the filter screen moves downward. At this time, the top block presses down to make the cylinder move downward, and at this time the first spring moves downward. At the same time, the circular pipe clamp moves downward, so that the fixing pin and the push block move to one side with the connection point of the circular pipe clamp as the center point and push the second spring to contract. Through the setting of the first spring and the second spring, the top block continuously impacts the filter screen to make the dust fall, which is beneficial to improving the combustion efficiency and enabling the biomass particles to release more heat energy during the combustion process.

[0016] 2. When the utility model is in use, the bundled materials are put into the transmission cylinder through the feeding port, and at the same time, the motor is started to make the transmission rod start to rotate. When the transmission rod starts to rotate, the conveying wheel starts to rotate and conveys the materials into the crushing box. At this time, the crushing cutter rotates rapidly along with the rotation of the transmission rod. When the materials are conveyed into the crushing box, the crushing cutter rotates rapidly, causing the materials to rub against the cylindrical filter net, so that the materials are crushed and fall into the combustion box through the leakage holes in the cylindrical filter net. This is beneficial to making the contact area between the fuel and oxygen larger, enabling the fuel to burn faster and more completely, improving the combustion efficiency, and reducing the emission of soot when the fuel burns sufficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0018] Figure 2 is a schematic diagram of the internal structures of the crushing box and the transmission cylinder of the present utility model.

[0019] Figure 3 is a schematic diagram of the filter net structure of the present utility model.

[0020] Figure 4 is a schematic diagram of the vibration mechanism structure of the present utility model.

[0021] Figure 5 is a schematic diagram of the cross-sectional structure of the pipe sleeve of the present utility model.

[0022] The reference numerals are: 1, combustion box; 101, support feet; 102, blower; 2, crushing box; 201, transmission cylinder; 202, feeding port; 3, motor; 301, transmission rod; 302, conveying wheel; 303, crushing cutter; 304, cylindrical filter net; 4, filter net; 401, connecting block; 402, pneumatic cylinder; 403, telescopic rod; 5, vibration mechanism; 501, top block; 502, cylinder; 503, first spring; 504, round pipe clamp; 505, fixing pin; 506, push block; 507, second spring; 508, pipe sleeve; 509, support plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the drawings in the present utility model. In addition, the forms of the various structures described in the following embodiments are merely examples, and a biomass pellet combustion furnace related to the present utility model is not limited to the various structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0024] Refer to Figures 1-5, the present utility model provides a biomass pellet combustion furnace, which includes a combustion chamber 1. A crushing chamber 2 is fixedly connected to the top of the combustion chamber 1. A transfer cylinder 201 is fixedly connected to one side of the crushing chamber 2. A feed inlet 202 is fixedly connected to the top of the outer surface of the transfer cylinder 201. A motor 3 is fixedly connected to one side of the transfer cylinder 201. A cylindrical strainer 304 is fixedly connected to the inner surface of the crushing chamber 2. A filter screen 4 is movably connected to the bottom of the inner surface of the combustion chamber 1. A vibration mechanism 5 is movably connected to the bottom of the filter screen 4. The vibration mechanism 5 includes a cylinder 502, and the outer surface of the cylinder 502 is movably connected to the bottom of the combustion chamber 1.

[0025] In a preferred embodiment, the vibration mechanism 5 includes a top block 501. The top of the top block 501 is movably connected to the filter screen 4. The bottom of the top block 501 is fixedly connected to the cylinder 502. The top of the outer surface of the cylinder 502 is movably connected to a circular pipe clamp 504. The bottom of the circular pipe clamp 504 is movably connected to a first spring 503. The inner surface of the first spring 503 is provided with the cylinder 502. The bottom of the first spring 503 is movably connected to the bottom of the inner surface of the combustion chamber 1.

[0026] In a preferred embodiment, one side of the circular pipe clamp 504 is movably connected to a fixing pin 505. One side of the fixing pin 505 is fixedly connected to a push block 506. The outer surface of one side of the push block 506 is movably connected to a pipe sleeve 508. The inner surface of the pipe sleeve 508 is provided with a second spring 507. The other side of the second spring 507 is movably connected to the push block 506. One side of the pipe sleeve 508 is movably connected to a support plate 509. The bottom of the support plate 509 is fixedly connected to the combustion chamber 1.

[0027] In a preferred embodiment, the other side of the motor 3 is fixedly connected to a transmission rod 301. One side of the outer surface of the transmission rod 301 is fixedly connected to a conveying wheel 302. The other side of the outer surface of the transmission rod 301 is fixedly connected to a crushing cutter 303. The outer surface of the crushing cutter 303 is provided with a cylindrical strainer 304.

[0028] In a preferred embodiment, one side of the filter screen 4 is fixedly connected to a connecting block 401. The connecting block 401 extends out of the combustion chamber 1. A pneumatic cylinder 402 is provided at the top of the connecting block 401. The bottom of the pneumatic cylinder 402 is movably connected to a telescopic rod 403.

[0029] In a preferred embodiment, feet 101 are fixedly connected to the four corners of the bottom of the combustion chamber 1. A blower 102 is movably connected to one side of the combustion chamber 1. The top of the filter screen 4 is the combustion chamber.

[0030] Working principle of the utility model: When in use, the bundled materials are put into the transmission cylinder 201 through the feeding port 202, and at the same time, the motor 3 is started to make the transmission rod 301 start to rotate. When the transmission rod 301 starts to rotate, the conveying wheel 302 starts to rotate and conveys the materials to the crushing box 2. At this time, the crushing cutter 303 rotates rapidly with the rotation of the transmission rod 301. When the materials are conveyed into the crushing box 2, the crushing cutter 303 rotates rapidly to make the materials rub against the cylindrical filter net 304, so that the materials are crushed and fall into the combustion box 1 through the leakage holes in the cylindrical filter net 304, which is beneficial to making the contact area between the fuel and oxygen larger, enabling the fuel to burn faster and more completely, improving the combustion efficiency and reducing the emission of soot when the fuel burns sufficiently; when the fuel in the combustion chamber burns out completely, a large amount of dust will be left. To quickly discharge the dust, the pneumatic cylinder 402 is started to make the telescopic rod 403 move downward rapidly, so that the connecting block 401 moves downward rapidly, and finally the filter net 4 moves downward. At this time, the top block 501 presses down to make the cylinder 502 move downward, and at this time the first spring 503 moves downward. At the same time, the round tube clamp 504 moves downward, so that the fixed pin 505 and the push block 506 move to one side with the connection point of the round tube clamp 504 as the center point and push the second spring 507 to contract. Through the settings of the first spring 503 and the second spring 507, the top block 501 continuously impacts the filter net 4 to make the dust fall, which is beneficial to improving the combustion efficiency and enabling the biomass particles to release more heat energy during the combustion process.

[0031] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the internal communication of two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0032] Second: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, the general design can be referred to. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0033] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A biomass pellet combustion furnace, comprising a combustion box (1), characterized in that: The top of the combustion box (1) is fixedly connected to a crushing box (2), one side of the crushing box (2) is fixedly connected to a transmission cylinder (201), the top of the outer surface of the transmission cylinder (201) is fixedly connected to a feed port (202), one side of the transmission cylinder (201) is fixedly connected to a motor (3), the inner surface of the crushing box (2) is fixedly connected to a cylindrical filter (304), the bottom of the inner surface of the combustion box (1) is movably connected to a filter (4), the bottom of the filter (4) is movably connected to a vibration mechanism (5), the vibration mechanism (5) comprises a cylinder (502), the outer surface of the cylinder (502) is movably connected to the bottom of the combustion box (1).

2. The biomass pellet combustion furnace according to claim 1, characterized in that: The vibration mechanism (5) comprises a top block (501), the top of the top block (501) is movably connected to a filter screen (4), the bottom of the top block (501) is fixedly connected to a cylinder (502), the top of the outer surface of the cylinder (502) is movably connected to a round tube clamp (504), the bottom of the round tube clamp (504) is movably connected to a first spring (503), the inner surface of the first spring (503) is provided with a cylinder (502), and the bottom of the first spring (503) is movably connected to the bottom of the inner surface of the combustion box (1).

3. A biomass particle combustion furnace according to claim 2, characterized in that: One side of the round tube clamp (504) is movably connected to a fixing pin (505), one side of the fixing pin (505) is fixedly connected to a push block (506), the outer surface of one side of the push block (506) is movably connected to a pipe sleeve (508), the inner surface of the pipe sleeve (508) is provided with a second spring (507), the other side of the second spring (507) is movably connected to the push block (506), one side of the pipe sleeve (508) is movably connected to a support plate (509), and the bottom of the support plate (509) is fixedly connected to a combustion box (1).

4. The biomass particle combustion furnace according to claim 1, characterized in that: The other side of the motor (3) is fixedly connected to a transmission rod (301), one side of the outer surface of the transmission rod (301) is fixedly connected to a conveying wheel (302), the other side of the outer surface of the transmission rod (301) is fixedly connected to a crushing and stirring blade (303), and the outer surface of the crushing and stirring blade (303) is provided with a cylindrical filter (304).

5. The biomass particle combustion furnace according to claim 1, characterized in that: A connection block (401) is fixedly connected to one side of the filter screen (4), and the connection block (401) extends outward from the combustion box (1). A pneumatic cylinder (402) is provided on the top of the connection block (401), and a telescopic rod (403) is movably connected to the bottom of the pneumatic cylinder (402).

6. The biomass particle combustion furnace according to claim 1, characterized in that: The four corners of the bottom of the combustion box (1) are fixedly connected with supporting feet (101), one side of the combustion box (1) is movably connected with a blower (102), and the top of the filter screen (4) is a combustion chamber.