A wood chip fuel precision feeding device

Abstract

The utility model relates to fuel feeding technology field especially relates to a wood chip fuel precision feeding device, including feed inlet, the first motor is provided with in feed inlet front end, the shell is fixedly connected with feed inlet lower extreme, the first motor output is fixedly connected with first linkage wheel, the linkage axle is rotatably connected with shell front end, the threaded push -on rod is fixedly connected with linkage axle rear end, the discharge gate is fixedly connected with shell lower extreme rear side, the second motor is fixedly connected with discharge gate front end, the runner is fixedly connected with second motor output, the fixed ring is fixedly connected with shell inside, the linkage lever is rotatably connected with fixed ring inside, the driving gear is fixedly connected with linkage lever upper end outside, through the cooperation design of second motor and driving gear, makes the transition cavity to form in discharge gate when the sector baffle rotates, avoids the direct contact of discharge gate and combustion chamber, prevents the direct contact of high temperature flue gas with the wood chip in threaded push -on rod through feed inlet.

Description

Technical Field

[0001] This utility model relates to the field of fuel feeding technology, and in particular to a precise wood chip fuel feeding device. Background Technology

[0002] Wood biomass fuel refers to combustible solid fuel made from wood and its processing residues through a series of processing steps. It is an important renewable energy source.

[0003] The wood chip fuel precision feeding device is an automated feeding system for biomass combustion equipment. Its core function is to achieve precise and stable feeding of wood chip fuel, thereby improving combustion efficiency and reducing manual operation costs. The device typically consists of a multi-layered storage structure, a feeding channel with anti-clogging function, and support and moving components that are easy to install and maintain. Its technical features are that through precise flow control algorithms, combined with vibration anti-clogging and compartment mixing functions, it can achieve on-demand feeding and stable delivery of wood chip fuel. This avoids incomplete combustion or equipment ash accumulation caused by overfeeding, and also prevents heat fluctuations caused by insufficient feeding. At the same time, through modular design, it can be adapted to different specifications of combustion equipment, significantly improving the operating efficiency and stability of biomass boilers, hot air furnaces, and other systems.

[0004] Existing feeding devices often fail to effectively isolate high-temperature flue gas during use, allowing the flue gas to easily come into direct contact with the wood chips inside the threaded push rod through the feed inlet. This can not only cause premature combustion or quality deterioration of the wood chips, but also reduce the accuracy of feeding. At the same time, the discharge port area lacks an efficient dispersing and scraping mechanism, and wood chips are prone to accumulate at the discharge port, forming arches or voids, which can cause blockages and affect the continuity and stability of feeding. In view of this, a wood chip fuel precision feeding device is provided to overcome the above defects. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a precise wood chip fuel feeding device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a precise wood chip fuel feeding device, comprising a feed inlet, a first motor disposed at the front end of the feed inlet, a housing fixedly connected to the lower end of the feed inlet, a first linkage wheel fixedly connected to the output end of the first motor, a linkage shaft rotatably connected to the front end of the housing, a threaded push rod fixedly connected to the rear end of the linkage shaft, a discharge outlet fixedly connected to the rear side of the lower end of the housing, a second motor fixedly connected to the front end of the discharge outlet, a rotating wheel fixedly connected to the output end of the second motor, a fixed ring fixedly connected inside the housing, a linkage rod rotatably connected inside the fixed ring, a drive gear fixedly connected to the outer side of the upper end of the linkage rod, fan-shaped baffles fixedly connected to the upper and lower ends of the linkage rod, a first gear meshing with the front end of the drive gear, a second gear fixedly connected to the lower end of the first gear, a driven gear meshing with the rear end of the second gear, and a scraper fixedly connected to the lower end of the driven gear.

[0007] As a further description of the above technical solution: the lower end of the first motor is fixedly connected to the lower end of the housing, the outer side of the output end of the first motor is connected to the outer side of the linkage shaft via a belt, the rear end of the threaded push rod is rotatably connected to the inside of the housing, and the outer side of the fixed ring is rotatably connected to the inner wall of the scraper. The first motor drives the threaded push rod to rotate, thereby causing the threaded push rod to move the material on the outer side.

[0008] As a further description of the above technical solution: a circular groove is provided at the front end of the housing, and the diameter of the circular groove matches the diameter of the linkage shaft, so that the first motor drives the linkage shaft to rotate through the belt, thereby driving the threaded push rod to rotate.

[0009] As a further description of the above technical solution: the upper and lower ends of the fixing ring are provided with through circular holes, and the outer side of the linkage rod is provided with an annular groove, and the diameter of the annular groove matches the diameter of the through circular holes at the upper and lower ends of the fixing ring, so that the linkage rod can rotate inside the fixing ring, thereby driving the fan-shaped baffle to rotate and block the wood piece.

[0010] As a further description of the above technical solution: the upper end of the annular groove on the outer side of the linkage rod is provided with an annular positioning groove, and the outer side of the annular positioning groove is connected to the outer side of the rotating wheel by a belt. The belt connection enables the second motor to drive the linkage rod to rotate.

[0011] As a further description of the above technical solution: the scraper has through holes at both the upper and lower ends, and the diameter of the through holes matches the diameter of the fixing ring, so that the scraper can rotate outside the fixing ring to break up and clean the wood inside the discharge port.

[0012] As a further description of the above technical solution: a semi-circular groove is provided inside the discharge port, and the diameter of the semi-circular groove matches the diameter of the fan-shaped baffle. A valve cavity structure is provided on the side of the discharge port away from the semi-circular groove, and the vertical length of the valve cavity structure matches the vertical length of the fan-shaped baffle. This allows the fan-shaped baffle to isolate the wood chips from the boiler when it rotates inside the discharge port, thus preventing the wood chips inside the discharge port from being ignited by high temperature.

[0013] This utility model has the following beneficial effects:

[0014] The wood chip fuel precision feeding device designed in this utility model, through the cooperation of a second motor and a drive gear, forms a transition cavity at the discharge port when the fan-shaped baffle rotates, avoiding direct contact between the discharge port and the combustion chamber. This prevents high-temperature flue gas from directly contacting the wood chips inside the threaded push rod through the feed port. At the same time, the scraper inside the discharge port can break up and scrape away the wood chips inside the discharge port, pushing the wood chips in the cavity, destroying the arch bridge or void structure formed by the wood, and forcing the material to flow downward. The rotating scraper can continuously clean the cavity wall and dead corners, preventing the material from stagnating for a long time and reducing the risk of compaction, agglomeration and spontaneous combustion. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the longitudinal cross-sectional structure of the shell of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of this utility model when rotated 90° in the vertical direction;

[0018] Figure 4 This is a schematic diagram of the overall structure of the discharge port of this utility model;

[0019] Figure 5 This is a schematic diagram of the longitudinal cross-sectional structure of the discharge port of this utility model;

[0020] Figure 6 This is a schematic diagram of the overall structure of the fan-shaped baffle of this utility model;

[0021] Figure 7 This is a schematic diagram of the overall structure of the linkage rod of this utility model;

[0022] Figure 8 This is a schematic diagram of the exploded structure of the linkage rod of this utility model;

[0023] Legend:

[0024] 1. Housing; 2. Feed inlet; 3. First motor; 4. First linkage wheel; 5. Linkage shaft; 6. Threaded push rod; 7. Discharge outlet; 8. Second motor; 9. Rotary wheel; 10. Fixed ring; 11. Linkage rod; 12. Drive gear; 13. Sector baffle; 14. First gear; 15. Second gear; 16. Driven gear; 17. Scraper. Detailed Implementation

[0025] Reference Figures 1 to 8 This utility model provides a precise wood chip fuel feeding device, including a feed inlet 2, a first motor 3 at the front end of the feed inlet 2, a housing 1 welded to the lower end of the feed inlet 2, a first linkage wheel 4 welded to the output end of the first motor 3, a linkage shaft 5 rotatably connected to the front end of the housing 1, a threaded push rod 6 welded to the rear end of the linkage shaft 5, a discharge port 7 welded to the rear side of the lower end of the housing 1, a second motor 8 connected to the front end of the discharge port 7 by bolts, a rotating wheel 9 welded to the output end of the second motor 8, a fixing ring 10 welded inside the housing 1, a linkage rod 11 rotatably connected inside the fixing ring 10, a drive gear 12 welded to the outer side of the upper end of the linkage rod 11, fan-shaped baffles 13 welded to the upper and lower ends of the linkage rod 11, a first gear 14 meshing with the front end of the drive gear 12, a second gear 15 welded to the lower end of the first gear 14, a driven gear 16 meshing with the rear end of the second gear 15, and a scraper 17 welded to the lower end of the driven gear 16.

[0026] As a further implementation of the above technical solution: the lower end of the first motor 3 is fixedly connected to the lower end of the housing 1, the outer side of the output end of the first motor 3 is connected to the outer side of the linkage shaft 5 by a belt, the rear end of the threaded push rod 6 is rotatably connected to the inside of the housing 1, and the outer side of the fixed ring 10 is rotatably connected to the inner wall of the scraper 17. The first motor 3 drives the threaded push rod to rotate, thereby causing the threaded push rod to move the material on the outside.

[0027] As a further implementation of the above technical solution: a circular groove is provided at the front end of the housing 1, and the diameter of the circular groove matches the diameter of the linkage shaft 5, so that the first motor 3 drives the linkage shaft 5 to rotate through the belt, thereby driving the threaded push rod 6 to rotate.

[0028] As a further implementation of the above technical solution: the upper and lower ends of the fixing ring 10 are provided with through circular holes, and the outer side of the linkage rod 11 is provided with an annular groove, and the diameter of the annular groove matches the diameter of the through circular holes at the upper and lower ends of the fixing ring 10, so that the linkage rod 11 can rotate inside the fixing ring 10, thereby driving the fan-shaped baffle 13 to rotate and block the wood piece.

[0029] As a further implementation of the above technical solution: an annular positioning groove is provided at the upper end of the annular groove on the outer side of the linkage rod 11, and the outer side of the annular positioning groove is connected to the outer side of the rotating wheel 9 by a belt. The belt connection enables the second motor 8 to drive the linkage rod 11 to rotate.

[0030] As a further implementation of the above technical solution: the scraper 17 has through holes at both the upper and lower ends, and the diameter of the through holes matches the diameter of the fixing ring 10, so that the scraper 17 can rotate outside the fixing ring 10 to break up and clean the wood inside the discharge port 7.

[0031] As a further implementation of the above technical solution: a semi-circular groove is provided inside the discharge port 7, and the diameter of the semi-circular groove matches the diameter of the fan-shaped baffle 13. A valve cavity structure is provided on the side of the discharge port 7 away from the semi-circular groove, and the vertical length of the valve cavity structure matches the vertical length of the fan-shaped baffle 13. This allows the fan-shaped baffle 13 to isolate the wood chips from the boiler when it rotates inside the discharge port 7, thus preventing the wood chips inside the discharge port 7 from being ignited by high temperature.

[0032] Working principle:

[0033] When using this invention, wood chips are fed into the housing 1 through the feed inlet 2. The first motor 3 is started, and the output end of the first motor 3 drives the first linkage wheel 4 to rotate. The first linkage wheel 4 drives the linkage shaft 5 to rotate, and the linkage shaft 5 drives the threaded push rod 6 at the rear end to move. The threaded push rod drives the wood chips on the outside to move until the wood chips are pushed into the discharge port 7. The second motor 8 is started, and the output end of the second motor 8 drives the rotating wheel 9 to move. The belt between the rotating wheel 9 and the linkage rod 11 drives the second motor 8 to rotate the linkage rod 11. The linkage rod 11 drives the fan-shaped baffles 13 at the upper and lower ends to move. The driving gear 12 drives the first gear 14 to rotate, the first gear 14 drives the second gear 15 to rotate, and the second gear 15 drives the driven gear 16 to rotate. The driven gear 16 drives the scraper 17 on the outside of the fixed ring 10 to rotate, so that the scraper 17 can agitate the wood chips inside the discharge port 7, push the wood chips in the cavity, destroy the arch bridge or void structure formed by the wood, and force the material to flow downward.

[0034] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A precise wood chip fuel feeding device, comprising a feed inlet (2), characterized in that: A first motor (3) is provided at the front end of the feed inlet (2). A housing (1) is fixedly connected to the lower end of the feed inlet (2). A first linkage wheel (4) is fixedly connected to the output end of the first motor (3). A linkage shaft (5) is rotatably connected to the front end of the housing (1). A threaded push rod (6) is fixedly connected to the rear end of the linkage shaft (5). A discharge port (7) is fixedly connected to the rear side of the lower end of the housing (1). A second motor (8) is fixedly connected to the front end of the discharge port (7). A rotating wheel (9) is fixedly connected to the output end of the second motor (8). The housing (1) is internally fixed... A fixed ring (10) is fixedly connected to the linkage rod (11) inside the fixed ring (10). A drive gear (12) is fixedly connected to the outer side of the upper end of the linkage rod (11). A fan-shaped baffle (13) is fixedly connected to the upper and lower ends of the linkage rod (11). A first gear (14) is meshed with the front end of the drive gear (12). A second gear (15) is fixedly connected to the lower end of the first gear (14). A driven gear (16) is meshed with the rear end of the second gear (15). A scraper (17) is fixedly connected to the lower end of the driven gear (16).

2. The wood chip fuel precision feeding device according to claim 1, characterized in that: The lower end of the first motor (3) is fixedly connected to the lower end of the housing (1). The outer side of the output end of the first motor (3) is connected to the outer side of the linkage shaft (5) via a belt. The rear end of the threaded push rod (6) is rotatably connected to the inside of the housing (1). The outer side of the fixing ring (10) is rotatably connected to the inner wall of the scraper (17).

3. The wood chip fuel precision feeding device according to claim 1, characterized in that: The front end of the housing (1) has a circular groove, and the diameter of the circular groove matches the diameter of the linkage shaft (5).

4. The wood chip fuel precision feeding device according to claim 1, characterized in that: The fixed ring (10) has through circular holes at both ends, and the linkage rod (11) has an annular groove on the outside, and the diameter of the annular groove matches the diameter of the through circular holes at both ends of the fixed ring (10).

5. The wood chip fuel precision feeding device according to claim 1, characterized in that: The annular groove on the outer side of the linkage rod (11) is provided with an annular positioning groove at the upper end, and the outer side of the annular positioning groove is connected to the outer side of the rotating wheel (9) by a belt.

6. The wood chip fuel precision feeding device according to claim 1, characterized in that: The scraper (17) has through holes at both the upper and lower ends, and the diameter of the through holes matches the diameter of the fixing ring (10).

7. The wood chip fuel precision feeding device according to claim 1, characterized in that: The discharge port (7) is provided with a semi-circular groove inside, and the diameter of the semi-circular groove matches the diameter of the fan-shaped baffle (13). A valve cavity structure is provided on the side of the discharge port (7) away from the semi-circular groove, and the vertical length of the valve cavity structure matches the vertical length of the fan-shaped baffle (13).

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