Wood dust blocking prevention pipe structure of wood dust burner
By combining the feeding mechanism and the air supply mechanism, the problem of blockage in the feeding pipe of the wood powder burner is solved, and the uniform dispersion of wood powder and airflow scouring are achieved, ensuring the stable operation of the burner.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIEQI MARK ENERGY TECH (JIANGSU) CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-24
AI Technical Summary
The feed pipes of existing wood powder burners are prone to sticking and clogging due to the rough surface of the wood chips, and it is difficult to transport too much wood chips at once, resulting in unstable burner operation.
The design incorporates a combination of a feeding mechanism and an air supply mechanism. The feeding mechanism uses an agitator and a feeding shaft to evenly disperse the wood powder, while the air supply mechanism uses airflow to flush the bends and prevent blockages.
It effectively prevents wood dust from accumulating locally in the pipes and from clogging at bends, ensuring stable use of the burner and smooth feeding.
Smart Images

Figure CN224551575U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wood powder burner technology, specifically to a wood powder burner pipe structure that prevents wood powder from clogging the pipe. Background Technology
[0002] Wood powder burners are combustion devices that use biomass such as wood chips, sawdust, and wood shavings as fuel. They achieve efficient combustion through high-temperature pyrolysis. Their core design revolves around fuel adaptability, combustion efficiency, and environmental performance. They are suitable for drying equipment (such as wood drying), boiler retrofitting, and small industrial kilns. They can replace coal-fired equipment to reduce carbon emissions and can be integrated into biomass heating systems or kitchen equipment to provide clean heat energy. However, wood powder burners often require corresponding feeding pipes to operate.
[0003] In existing wood powder burners, the feeding pipes are mostly straight-line wood powder pipes to enter the combustion chamber, or external cyclone pipes to input wood powder into the combustion chamber. However, the surface of wood chips is often relatively rough, and they are prone to sticking together when they are piled up, causing blockages in the feeding pipe. At the same time, if too much wood chips or other materials are added at one time, the limited inner diameter of the pipe makes it difficult to transport the excess material in time, which can also cause blockages and affect the stable use of the wood powder burner. Utility Model Content
[0004] The purpose of this utility model is to provide a pipe structure for preventing wood powder blockage in a wood powder burner, in order to solve the problems mentioned in the background art. In use, existing wood powder burners often use straight-connected wood powder pipes to introduce wood powder into the combustion chamber, or external cyclone pipes to input wood powder into the combustion chamber. However, the surface of wood chips is often relatively rough, and they are prone to sticking together when accumulating and feeding, leading to blockage of the feed pipe. At the same time, if too much wood chips or other materials are added at one time, due to the limited inner diameter of the pipe, the excess material is difficult to be transported in time, which can also easily cause blockage and affect the stable use of the wood powder burner.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipe structure for preventing wood powder blockage in a wood powder burner, comprising a feeding pipe and a feeding mechanism. The feeding mechanism for preventing wood powder blockage is located in the upper middle part of the feeding pipe. The feeding mechanism includes a feeding port, a processing pipe, a power motor, a synchronous pulley, a stirring shaft, a feeding shaft, and a discharge port. The processing pipe is connected below the feeding port, and a power motor is installed on the outer side of the processing pipe. The output end of the power motor is connected to the synchronous pulley, and the upper front end of the synchronous pulley is connected to the stirring shaft. The lower front end of the synchronous pulley is connected to the feeding shaft. A discharge port is provided inside the lower part of the processing pipe.
[0006] Preferably, the inlet and the processing pipe are connected to the feeding pipe through the discharge port, and the stirring shaft and the feeding shaft are rotatably connected to the processing pipe through a synchronous pulley and a power motor.
[0007] Preferably, an air supply mechanism for pneumatic feeding is provided on one side of the feeding pipe. The air supply mechanism includes an air pump and a connecting pipe, and the output end of the air pump is connected to the connecting pipe.
[0008] Preferably, the air supply mechanism further includes an air distribution pipe, and the air distribution pipe is connected to the lower part of the connecting pipe.
[0009] Preferably, the air supply mechanism further includes a corrugated hose and a mounting head, wherein the corrugated hose is provided in the middle of the air distribution pipe and the mounting head is provided at the front end of the corrugated hose.
[0010] Preferably, the air pump is connected to the feeding pipe via a connecting pipe, and the air pump is connected to the feeding pipe via a connecting pipe, a distribution pipe, a corrugated hose, and a mounting head.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model, through the cooperation of various parts of the feeding mechanism, allows the rotating agitator shaft to evenly disperse the wood powder when it is added to the processing pipe. This prevents the wood powder from accumulating locally in the pipe and forming large clumps or blocks, which would cause problems such as difficulty in feeding and conveying. By rotating the feeding shaft and controlling the speed of the power motor, the amount of wood powder entering the pipe can be controlled according to the needs of the wood powder. This avoids blockage caused by adding too much wood powder and exceeding the conveying capacity of the pipe, thus helping to ensure the long-term smooth flow of the pipe and the stable operation of the burner.
[0013] 2. This utility model, through the cooperation between the various parts of the gas delivery mechanism, can set the output end of the gas distribution pipe at the bend of the feeding pipe, so that when the feeding pipe delivers gas, a separate airflow can flush the bend of the feeding pipe, avoiding the problem of pipe blockage caused by material obstruction at the bend, thereby further ensuring the smooth feeding of the feeding pipe and the stability of the subsequent burner. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the anti-wood powder clogging pipe structure of a wood powder burner according to the present invention;
[0015] Figure 2 This utility model relates to a pipe structure for preventing wood powder from clogging a wood powder burner. Figure 1 A schematic diagram of the three-dimensional structure viewed from below;
[0016] Figure 3This is a three-dimensional cross-sectional view of the internal structure of the anti-wood powder clogging pipe structure of a wood powder burner according to the present invention.
[0017] Figure 4 This utility model relates to a pipe structure for preventing wood powder from clogging a wood powder burner. Figure 2 Enlarged structural diagram at point A in the middle.
[0018] In the diagram: 1. Feeding pipe; 2. Feeding mechanism; 201. Feed inlet; 202. Processing pipe; 203. Power motor; 204. Synchronous pulley; 205. Agitator shaft; 206. Feeding shaft; 207. Drop outlet; 3. Air supply mechanism; 301. Air pump; 302. Connecting pipe; 303. Air distribution pipe; 304. Corrugated hose; 305. Mounting head. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] like Figures 1-3 As shown, a wood powder burner anti-wood powder blockage pipe structure includes a feeding pipe 1 and a feeding mechanism 2 connected to the upper middle part of the feeding pipe 1. The feeding mechanism 2 includes a feeding port 201 connected to the upper part of the feeding pipe 1. A processing pipe 202 is connected below the feeding port 201, and a power motor 203 is installed on the outer side of the processing pipe 202. A synchronous pulley 204 is rotatably provided at the output end of the power motor 203.
[0021] An agitator shaft 205 is rotatably connected to the upper front end of the synchronous belt pulley 204, and a feed shaft 206 is rotatably connected to the lower front end of the synchronous belt pulley 204. The agitator shaft 205 and the feed shaft 206 are rotatably connected to the processing tube 202 through the synchronous belt pulley 204 and the power motor 203. A discharge port 207 is provided at the lower part of the interior of the processing tube 202. The inlet 201 and the processing tube 202 are connected to the feeding tube 1 through the discharge port 207. The feeding mechanism 2 can disperse and control the amount of wood powder added to prevent wood powder from clogging the feeding tube 1.
[0022] The servo-driven motor 203 and synchronous pulley 204 drive the agitator shaft 205 and the feed shaft 206 to rotate synchronously. When wood powder is added to the processing pipe 202, the rotating agitator shaft 205 can evenly disperse the powder, preventing the wood powder from accumulating locally in the pipe and forming large clumps or lumps, which would cause problems such as difficulty in feeding and conveying. By rotating the feed shaft 206 and controlling the speed of the servo-driven motor 203, the amount of wood powder entering the pipe can be controlled according to the needs of the wood powder, avoiding blockage caused by adding too much wood powder and exceeding the conveying capacity of the pipe.
[0023] like Figure 1 , Figure 2 and Figure 4 As shown, an air supply mechanism 3 is provided on one side of the lower part of the feeding pipe 1. The air supply mechanism 3 includes an air pump 301 installed in the middle of one end of the feeding pipe 1. The output end of the air pump 301 is connected to a connecting pipe 302. The air pump 301 is connected to the feeding pipe 1 through the connecting pipe 302. A distribution pipe 303 is connected to the lower part of the connecting pipe 302.
[0024] A corrugated hose 304 is connected to the middle of the air distribution pipe 303, and an installation head 305 is provided at the front end of the corrugated hose 304. The installation head 305 is installed at the bottom of the feeding pipe 1 by means of threads. The air pump 301 is connected to the feeding pipe 1 through the connecting pipe 302, the air distribution pipe 303, the corrugated hose 304 and the installation head 305. The air supply mechanism 3 can prevent wood powder from accumulating and blocking in the pipe during pneumatic feeding.
[0025] The air pump 301, a common material conveying method in existing burners, uses pneumatics to push the material added in the feed pipe 1 forward. Through the air distribution pipe 303, the airflow generated by the air pump 301 can be branched downward at the connecting pipe 302. The corrugated hose 304 makes the air distribution pipe 303 deformable, and the mounting head 305 installs the output end of the air distribution pipe 303. The output end of the air distribution pipe 303 can be set at the bend of the feed pipe 1. Thus, when the feed pipe 1 is pneumatically conveyed, a separate airflow can flush the bend of the feed pipe 1, avoiding the problem of pipe blockage caused by material obstruction at the bend. This further ensures the smoothness of the feed pipe 1 during material feeding and the stability of the subsequent burner operation.
[0026] Working Principle: In the anti-wood powder blockage pipeline structure of this wood powder burner, the wood powder to be conveyed is first added to the processing pipe 202 through the inlet 201. Then, the power motor 203 and synchronous pulley 204 drive the stirring shaft 205 and the feeding shaft 206 to rotate synchronously. When the wood powder is added to the processing pipe 202, the rotating stirring shaft 205 evenly disperses the powder. Then, the rotation of the feeding shaft 206, controlled by the servo-type power motor 203, allows for the control of the amount of wood powder entering the pipeline according to the required usage. Finally, the falling... The material controlled by the feed inlet 207 falls into the feed pipe 1. At this time, the air pump 301 uses pneumatics to push the material added into the feed pipe 1 forward. Then, through the air distribution pipe 303, the airflow generated by the air pump 301 can be branched downward at the connecting pipe 302. The corrugated hose 304 is used to make the air distribution pipe 303 deformable, and the installation head 305 is used to install the output end of the air distribution pipe 303. The output end of the air distribution pipe 303 can be set at the bend of the feed pipe 1. Finally, when the feed pipe 1 is pneumatically conveyed, a separate airflow can be used to flush the bend of the feed pipe 1.
[0027] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A wood powder burner anti-wood powder clogging pipe structure, comprising a feeding pipe (1) and a feeding mechanism (2), characterized in that: The feeding mechanism (2) for preventing wood powder blockage is located in the upper middle part of the feeding pipe (1). The feeding mechanism (2) includes a feeding port (201), a processing pipe (202), a power motor (203), a synchronous pulley (204), a stirring shaft (205), a feeding shaft (206), and a discharge port (207). The processing pipe (202) is connected to the lower part of the feeding port (201), and the power motor (203) is installed on the outer side of the processing pipe (202). The output end of the power motor (203) is connected to the synchronous pulley (204), and the stirring shaft (205) is connected to the upper front end of the synchronous pulley (204). The feeding shaft (206) is connected to the lower front end of the synchronous pulley (204). The discharge port (207) is provided inside the lower part of the processing pipe (202).
2. The anti-wood powder clogging pipe structure for a wood powder burner according to claim 1, characterized in that: The feed inlet (201) and processing pipe (202) are connected to the feeding pipe (1) through the discharge port (207), and the stirring shaft (205) and feeding shaft (206) are rotatably connected to the processing pipe (202) through the synchronous pulley (204) and the power motor (203).
3. The anti-wood powder clogging pipe structure for a wood powder burner according to claim 1, characterized in that: A pneumatic feeding mechanism (3) for pneumatic feeding is provided on one side of the feeding pipe (1). The pneumatic feeding mechanism (3) includes an air pump (301) and a connecting pipe (302). The output end of the air pump (301) is connected to the connecting pipe (302).
4. The anti-wood powder clogging pipe structure for a wood powder burner according to claim 3, characterized in that: The gas delivery mechanism (3) also includes a gas distribution pipe (303), and the gas distribution pipe (303) is connected to the lower part of the connecting pipe (302).
5. The anti-wood powder clogging pipe structure for a wood powder burner according to claim 4, characterized in that: The air supply mechanism (3) also includes a corrugated hose (304) and a mounting head (305). The corrugated hose (304) is provided in the middle of the air distribution pipe (303), and the mounting head (305) is provided at the front end of the corrugated hose (304).
6. The anti-wood powder clogging pipe structure for a wood powder burner according to claim 5, characterized in that: The air pump (301) is connected to the feeding pipe (1) through the connecting pipe (302), and the air pump (301) is connected to the feeding pipe (1) through the connecting pipe (302), the air distribution pipe (303), the corrugated hose (304) and the mounting head (305).