Automatic feed hopper for burning biomass and wood chips

By introducing crushing and dispersing components into the biomass wood chip hopper, the problems of wood chip clogging and incomplete combustion were solved, achieving efficient combustion of wood chips.

CN223619794UActive Publication Date: 2025-12-02WUXI XICHENG BOILER CO LTD
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Patent Information

Application Number
CN202520254590.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-02
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Existing biomass wood chip hoppers are prone to clogging during use due to the large size of the wood chips, resulting in incomplete combustion and low combustion efficiency due to the concentrated accumulation of wood chips.

Method used

An automatic feeding hopper including a crushing component and a dispersing component was designed. The motor drives the rotating shaft to drive the cutting blade to crush the wood chips, and the fan blows the wood chips to increase the contact area with oxygen and prevent them from piling up.

Benefits of technology

It effectively prevents wood chips from clogging, improves combustion efficiency, and allows wood chips to burn more completely.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic feed hopper for burning biomass and wood chips, which comprises a hopper, a feed port is arranged on one side of the top of the hopper, a crushing component is arranged in the hopper, a discharge plate is arranged at the bottom of the hopper, and a dispersing component is arranged in the discharge plate. A motor is turned on to drive a rotating shaft to rotate, so that a sleeve drives a cutting knife to rotate to smash wood chips, the rotating shaft rotates to drive a reciprocating lead screw to rotate, so that a sliding block drives a connecting rod to move up and down to do reciprocating motion, a mounting ring drives the sleeve to move up and down to do reciprocating motion, and the cutting knife can smash the wood chips more thoroughly; and secondly, gas is conveyed into the air conveying pipe by turning on the draught fan, airflow is sprayed out from the air outlet pipe, wood chips falling after smashing are dispersed, accumulation is prevented, the contact area of the wood chips and oxygen is increased, and biomass materials are more sufficiently burnt.
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Description

Technical Field

[0001] This utility model relates to the field of biomass technology, specifically to an automatic feeding hopper for burning biomass and wood chips. Background Technology

[0002] Biomass refers to all kinds of organisms formed through photosynthesis, including all plants, animals and microorganisms. Biomass energy is the form of energy that solar energy stores in biomass in the form of chemical energy. It has always been one of the important energy sources for human survival. It is the fourth largest energy source after coal, oil and natural gas, and occupies an important position in the entire energy system.

[0003] The prior art patent document CN221252482U provides a biomass wood chip hopper feeding device, including a hopper, a support placed on a base, and a rotating bolt installed on the support and positioning hole to ensure the stability of the motor structure. The motor is turned on to drive the rotating shaft, which in turn drives the fan blades and rotating plate to rotate, feeding biomass wood chips into the hopper. The biomass wood chips move downwards along the fan blades. When the biomass wood chips reach the bottom outlet of the hopper, the rotating plate stirs the biomass wood chips to ensure that they do not clog the bottom outlet. The rotating shaft achieves uniform feeding of the biomass wood chips, the fan blades ensure that the biomass wood chips do not accumulate inside the hopper, and the discharge plate allows the biomass wood chips to be smoothly discharged from the hopper. This discharge plate also limits the discharge of different amounts of biomass wood chips, preventing splashing during discharge.

[0004] Although the device has many beneficial effects, the following problems still exist: during the use of the device, some wood chips are large in size, which may cause blockage and make it difficult to burn; secondly, the wood chips accumulate and fall during the use of the device, resulting in incomplete combustion, which needs to be improved. In view of this, we propose an automatic feeding hopper for burning biomass and wood chips. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce 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 used to limit the scope of this utility model.

[0006] 1. Technical problems to be solved:

[0007] In order to solve the problems mentioned above, such as the large size of some wood chips which may cause blockage and make it difficult to burn, and the concentrated accumulation of wood chips leading to incomplete combustion, this utility model is proposed.

[0008] Therefore, the purpose of this utility model is to provide an automatic feeding hopper for burning biomass wood chips, which facilitates the crushing of biomass wood chips, avoids clogging, facilitates combustion, facilitates the dispersion of wood chips, increases the contact area between wood chips and oxygen, and makes combustion more complete.

[0009] 2. Technical Solution:

[0010] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0011] An automatic feeder for biomass-fired wood chips includes a hopper.

[0012] As a preferred embodiment of the present invention, an automatic feeding hopper for burning biomass and wood chips includes a hopper with a feeding port on one side of the top. A crushing assembly is located inside the hopper, comprising a motor located in the middle of the top of the hopper. A rotating shaft is located at the output end of the motor. A sleeve is slidably connected to the outer circumference of the rotating shaft. Multiple cutting blades are located on the outer circumference of the sleeve. A reciprocating screw is located at the bottom of the rotating shaft. A slider is threadedly connected to the outer circumference of the reciprocating screw. Multiple connecting rods are located at the top of the slider. An mounting ring is located on the outer circumference of the sleeve at the top of the connecting rods. A discharge plate is located at the bottom of the hopper, and a dispersing assembly is located inside the discharge plate. The motor is electrically connected to an external power source.

[0013] As a preferred embodiment of the present invention, an automatic feeding hopper for burning biomass and wood chips is provided, wherein the dispersing component includes a blower, the blower output end is provided with an air supply pipe, one end of the outer circumference of the air supply pipe is provided with a one-way valve, the other end of the air supply pipe is provided with a diverter head, the outer circumference of the diverter head is provided with multiple air outlet pipes, and the blower is electrically connected to an external power source.

[0014] As a preferred embodiment of the automatic feeding hopper for burning biomass and wood chips according to this utility model, the multiple cutting blades are arranged in a circular array of three as a group, and the multiple groups of cutting blades are arranged at equal intervals.

[0015] As a preferred embodiment of the automatic feeding hopper for burning biomass and wood chips according to this utility model, the top of the reciprocating screw is provided with a fixing block, the diameter of which is larger than the diameter of the reciprocating screw.

[0016] As a preferred embodiment of the automatic feeding hopper for burning biomass and wood chips according to this utility model, the outer circumference of the feeding port is threaded with a cover, and the outer circumference of the cover is provided with multiple vertical raised lines.

[0017] As a preferred embodiment of the automatic feeding hopper for burning biomass and wood chips according to this utility model, the inner circumference of the cover is provided with a sealing gasket, and the sealing gasket is made of silicone rubber.

[0018] 3. Beneficial effects:

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This type of automatic feeder for burning biomass wood chips works by feeding biomass wood chips into the hopper through the feed inlet, turning on the motor to drive the rotating shaft, which in turn causes the sleeve to drive the cutting blade to rotate and crush the wood chips. The rotation of the rotating shaft also drives the reciprocating screw to rotate, which in turn causes the slider to drive the connecting rod to move up and down in a reciprocating motion. This, in turn, causes the mounting ring to drive the sleeve to move up and down in a reciprocating motion, which makes it easier for the cutting blade to crush the wood chips more thoroughly, prevents blockage, and facilitates combustion.

[0021] This automatic feeder for burning biomass wood chips delivers gas into the air duct by turning on the blower. The airflow is then ejected from the outlet duct on the outer circumference of the distributor head, which disperses the crushed wood chips, prevents them from piling up, increases the contact area between the wood chips and oxygen, and allows the biomass material to burn more completely. A one-way valve prevents flame backflow. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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:

[0023] Figure 1 This is a schematic diagram of the overall structure of an automatic feeding hopper for burning biomass and wood chips according to this utility model;

[0024] Figure 2 This is a schematic diagram of the crushing component structure of an automatic feeding hopper for burning biomass and wood chips according to this utility model;

[0025] Figure 3 This is a schematic diagram of the dispersing component structure of an automatic feeding hopper for burning biomass and wood chips according to this utility model;

[0026] Figure 4 This is a cross-sectional schematic diagram of the feed inlet cover structure of an automatic feed hopper for burning biomass and wood chips according to this utility model;

[0027] The following are the labels in the diagram: 1. Hopper; 2. Feed inlet; 3. Crushing assembly; 4. Discharge plate; 5. Dispersion assembly; 6. Cover; 7. Sealing gasket; 301. Motor; 302. Shaft; 303. Sleeve; 304. Cutting blade; 305. Reciprocating screw; 306. Slider; 307. Connecting rod; 308. Mounting ring; 309. Fixing block; 501. Fan; 502. Air duct; 503. Check valve; 504. Diverter head; 505. Air outlet duct. Detailed Implementation

[0028] 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.

[0029] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0030] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0033] This utility model provides an overall structural schematic diagram of an embodiment of an automatic feeding hopper for burning biomass and wood chips, including:

[0034] Please see Figures 1-4This embodiment of an automatic feeding hopper for burning biomass wood chips includes a hopper 1 with a feed inlet 2 welded to one side of the top. A crushing assembly 3 is rotatably connected inside the hopper 1. The crushing assembly 3 includes a motor 301 located in the center of the top of the hopper 1. A rotating shaft 302 is fixedly mounted at the output end of the motor 301. A sleeve 303 is slidably connected to the outer circumference of the rotating shaft 302. Multiple cutting blades 304 are welded to the outer circumference of the sleeve 303. A reciprocating screw 305 is fixedly mounted at the bottom of the rotating shaft 302. A slider 306 is threadedly connected to the outer circumference of the reciprocating screw 305. Multiple connecting rods 307 are fixedly mounted on the top of the slider 306. The tops of the connecting rods 307 are fixedly mounted on the outer circumference of the sleeve 303. The wall mounting ring 308, the bottom of the hopper 1 is welded with a discharge plate 4, the discharge plate 4 is fixed with a dispersing component 5, the motor 301 is electrically connected to an external power source, by feeding biomass wood chips into the hopper 1 through the feed inlet 2, the motor 301 is turned on to drive the rotating shaft 302 to rotate, thereby causing the sleeve 303 to drive the cutting blade 304 to rotate to crush the wood chips. The rotation of the rotating shaft 302 at the same time drives the reciprocating screw 305 to rotate, thereby causing the slider 306 to drive the connecting rod 307 to move up and down to reciprocate, and then causing the mounting ring 308 to drive the sleeve 303 to move up and down to reciprocate, so that the cutting blade 304 can crush the wood chips more thoroughly, prevent blockage, and facilitate combustion.

[0035] It is worth noting that, in order to improve cooling efficiency, the dispersion component 5 specifically includes a fan 501. An air supply pipe 502 is welded to the output end of the fan 501. A one-way valve 503 is fixed to one end of the outer circumference of the air supply pipe 502. A diverter head 504 is welded to the top of the other end of the air supply pipe 502. Multiple air outlet pipes 505 are welded to the outer circumference of the diverter head 504. The fan 501 is electrically connected to an external power source. By turning on the fan 501, gas is supplied into the air supply pipe 502. The airflow is sprayed out from the air outlet pipes 505 on the outer circumference of the diverter head 504, which disperses the crushed wood chips, prevents accumulation, increases the contact area between the wood chips and oxygen, and makes the biomass material burn more completely. The one-way valve 503 prevents flame backflow.

[0036] Next, in order to improve the wood chip crushing effect, multiple cutting blades 304 are arranged in a circular array of three to a group, with multiple groups of cutting blades 304 set at equal intervals. The equally spaced cutting blades 304 make it easier to crush the wood chips more evenly and avoid large wood chips from causing blockage.

[0037] Meanwhile, in order to prevent the slider 306 from detaching from the reciprocating screw 305, a fixing block 309 is fixedly provided on the top of the reciprocating screw 305. The diameter of the fixing block 309 is larger than the diameter of the reciprocating screw 305. The slider 306 is prevented from falling off by the fixing block 309, which has a larger diameter than the reciprocating screw 305.

[0038] Furthermore, to prevent sawdust and dust from flying out, a cap 6 is threadedly connected to the outer circumference of the feed inlet 2. Multiple vertical protrusions are fixedly set on the outer circumference of the cap 6. By screwing the cap 6 into the feed inlet 2, fine sawdust and dust are prevented from splashing out. The vertical protrusions increase the friction, making it easier for workers to use.

[0039] Finally, to improve the sealing performance, a sealing gasket 7 is fixed on the inner circumference of the cover 6. The sealing gasket 7 is made of silicone rubber. The silicone rubber sealing gasket 7 helps to improve the sealing performance of the cover 6 and is also more resistant to high temperatures.

[0040] In addition, the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. Furthermore, the scope of protection of this utility model does not involve improvements to the internal structure and methods.

[0041] The device or equipment models mentioned in this article may be as follows:

[0042] Motor 301: Y90S-2;

[0043] Fan 501: 4-72-5 / A.

[0044] Combination Figures 1-4 The automatic feeding hopper for burning biomass and wood chips according to this embodiment is used in the following way:

[0045] 1. According to the actual use, put the biomass wood chip hopper 1 into the feed inlet 2, start the motor 301 to make the rotating shaft 302 rotate, which drives the sleeve 303 to rotate, thereby causing the cutting blade 304 to rotate and crush the wood chips. At the same time, the rotating shaft 302 rotates, which causes the reciprocating screw 305 to rotate, which drives the slider 306 to move up and down to make reciprocating motion, thereby causing the connecting rod 307 to drive the mounting ring 308 to make reciprocating motion, which in turn causes the sleeve 303 to drive the cutting blade 304 to move up and down to make reciprocating motion, so as to completely crush the wood chips.

[0046] 2: Start the fan 501 to deliver gas from the air supply pipe 502 to the splitter head 504. The airflow is sprayed out from the air outlet pipe 505 to blow away the crushed wood chips that fall down, increasing the contact area between the wood chips and oxygen. A one-way valve 503 is installed on the outer circumference of the air supply pipe 502.

[0047] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An automatic feeding hopper for burning biomass and wood chips, characterized in that, The hopper (1) is characterized in that: a feed inlet (2) is provided on one side of the top of the hopper (1), a crushing assembly (3) is provided inside the hopper (1), the crushing assembly (3) includes a motor (301) located in the middle of the top of the hopper (1), a rotating shaft (302) is provided at the output end of the motor (301), a sleeve (303) is slidably connected to the outer circumference of the rotating shaft (302), and a plurality of cutting blades (304) are provided on the outer circumference of the sleeve (303). 302) A reciprocating screw (305) is provided at the bottom. A slider (306) is threadedly connected to the outer circumference of the reciprocating screw (305). A plurality of connecting rods (307) are provided at the top of the slider (306). An installation ring (308) located on the outer circumference of the sleeve (303) is provided at the top of the connecting rod (307). A discharge plate (4) is provided at the bottom of the hopper (1). A dispersing component (5) is provided inside the discharge plate (4). The motor (301) is electrically connected to an external power source.

2. The automatic feeder for burning biomass and wood chips according to claim 1, characterized in that, The dispersion component (5) includes a fan (501), the output end of the fan (501) is provided with an air supply pipe (502), one end of the outer circumference of the air supply pipe (502) is provided with a one-way valve (503), the top of the other end of the air supply pipe (502) is provided with a diverter head (504), the outer circumference of the diverter head (504) is provided with multiple air outlet pipes (505), and the fan (501) is electrically connected to an external power source.

3. The automatic feeder for burning biomass and wood chips according to claim 2, characterized in that, The multiple cutting blades (304) are arranged in a ring array of three as a group, and the multiple groups of cutting blades (304) are equally spaced.

4. The automatic feeder for burning biomass and wood chips according to claim 3, characterized in that, The reciprocating lead screw (305) is provided with a fixing block (309) at the top, and the diameter of the fixing block (309) is larger than the diameter of the reciprocating lead screw (305).

5. The automatic feeder for burning biomass and wood chips according to claim 4, characterized in that, The feed inlet (2) has a cover (6) threaded on its outer circumference, and the cover (6) has multiple vertical raised lines on its outer circumference.

6. The automatic feeder for burning biomass and wood chips according to claim 5, characterized in that, The inner circumference of the cover (6) is provided with a sealing gasket (7), and the sealing gasket (7) is made of silicone rubber.

Citation Information

Patent Citations

  • Biomass wood chip hopper feeding device

    CN221252482U