Anti-blocking boiler feeding structure
By combining a screw conveyor with an anti-clogging feeding assembly, the clogging problem during biomass boiler feeding was solved, achieving stable and continuous feeding and efficient production.
Patent Information
- Application Number
- CN202520001887.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Traditional biomass boilers are prone to clogging of the feed pipe during feeding due to the high water content and viscosity of biomass fuel, which affects production efficiency.
The system employs a screw conveyor, a feed tube, an electric push rod, and an anti-clogging feeding assembly. The screw conveyor stably transports biomass fuel, while the electric push rod pushes the feed block to push the fuel into the boiler. Combined with the positioning rod, clamping rod, and baffle limiting structure, the feeding process is ensured to be smooth and stable.
It achieves stable and continuous feeding of biomass fuel, avoids blockages, ensures smooth feeding and production efficiency, and improves the degree of automation of operation.
Smart Images

Figure CN223649298U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of boiler feeding technology, and in particular to an anti-clogging boiler feeding structure. Background Technology
[0002] Biomass refers to all living, growing organic matter produced through photosynthesis from the atmosphere, water, and land. Its characteristics include renewability, low pollution, wide distribution, abundant resources, and carbon neutrality. Biomass includes plants, animals, and microorganisms, and is widely used in boilers. A biomass boiler is a device that uses biomass fuels (such as wood chips, straw, and agricultural waste) for heating or steam production.
[0003] In existing technologies, traditional biomass boilers are prone to clogging during feeding due to the high water content and viscosity of biomass fuel. This prevents the biomass fuel from smoothly entering the fluidized bed boiler furnace, thus affecting production efficiency. To address this issue, we propose an anti-clogging boiler feeding structure. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of traditional biomass boilers in the prior art, where the high water content and viscosity of biomass fuel make the feed pipe prone to blockage during fuel delivery, preventing the fuel from smoothly entering the fluidized bed boiler furnace and affecting production efficiency. Therefore, this invention proposes an anti-blockage boiler feeding structure.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A boiler feeding structure for preventing blockage includes a boiler body, and the feeding structure further includes:
[0007] A base plate, which is fixedly installed at the bottom of the boiler body;
[0008] The screw conveyor is located on the top of the base plate, and the right end of the screw conveyor is in contact with the left side of the boiler body. The top of the screw conveyor is fixedly connected to the feed pipe, and the bottom of the screw conveyor is fixedly connected to the discharge pipe.
[0009] An anti-clogging feeding assembly includes: a feed tube, a support, an electric push rod, and a push block. The top of the feed tube is fixedly connected to the bottom of the feed tube, and the right end of the feed tube is connected to the left side of the boiler body. The support is fixedly installed at the bottom of the screw conveyor, and the bottom end of the support is in contact with the top of the bottom plate. The electric push rod is fixedly installed on the support, and the output shaft of the electric push rod is fixedly installed on the left side of the push block. The right end of the push block extends into the interior of the feed tube and is slidably connected to the inner wall of the feed tube.
[0010] The mounting assembly is located on top of the base plate and cooperates with the bracket.
[0011] As a preferred embodiment of this utility model, the left side of the boiler body is fixedly connected to a feed sealing pipe, and the right end of the push pipe can be detached and inserted into the inside of the feed sealing pipe.
[0012] As a preferred embodiment of this utility model, a positioning rod is fixedly installed on the top of the screw conveyor, and a positioning sleeve is fixedly installed on the left side of the boiler body. The right end of the positioning rod can be detached and inserted into the positioning sleeve.
[0013] As a preferred embodiment of this utility model, an observation window is provided on the front side of the propulsion tube.
[0014] As a preferred embodiment of this utility model, the installation assembly includes a U-shaped frame, two clamping rods, and two springs. The U-shaped frame is fixedly installed on the top of the base plate. The two clamping rods pass through the front and rear sides of the U-shaped frame respectively and are slidably connected to the U-shaped frame. The right sides of the two clamping rods are in contact with the left side of the bracket. The springs are sleeved on the corresponding clamping rods, with one end of the spring fixedly installed on the corresponding clamping rod and the other end of the spring fixedly installed on one side of the U-shaped frame.
[0015] As a preferred embodiment of this utility model, a baffle is fixedly installed on the left side of the bracket, and the top of the baffle contacts the bottom of the two levers respectively.
[0016] Beneficial effects:
[0017] 1. By starting the screw conveyor and adding biomass fuel through the feed pipe, the screw conveyor can stably transport the biomass fuel. The biomass fuel can then fall into the inside of the feed pipe through the discharge pipe. At this time, by starting the electric push rod, the pusher block can be driven to push the biomass fuel into the boiler body. This method can achieve a stable and continuous feeding operation of biomass fuel into the boiler body, which can avoid the situation of biomass fuel blockage during feeding and ensure smooth feeding and production efficiency.
[0018] 2. By limiting the insertion between the positioning rod and the positioning sleeve, and by limiting the clamping between the clamping rod and the bracket, the leftward movement of the bracket and the screw conveyor can be limited, ensuring that the push pipe and the feed sealing pipe are disconnected from each other, and enabling stable feeding into the boiler body. Here, by setting the limiting cooperation between the baffle and the clamping rod, the left end of the bracket and the screw conveyor can be restricted from moving upward, which can improve the stability of the screw conveyor after installation.
[0019] This invention achieves stable feeding of biomass fuel into the boiler body through a simple structure, which can avoid the blockage of biomass fuel during feeding, ensure smooth feeding and production efficiency, and is easy to operate, highly automated, and convenient for personnel to use. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a three-dimensional structural diagram of the screw conveyor, feed pipe, discharge pipe, propulsion pipe, support, electric push rod, push block, positioning rod and baffle of this utility model;
[0022] Figure 3 Appendix of this utility model Figure 1 A schematic diagram of the structure of part A;
[0023] Figure 4 This is a three-dimensional structural diagram of the U-shaped frame, clamping rod, and spring of this utility model.
[0024] In the diagram: 1. Base plate; 2. Boiler body; 3. Feed sealing pipe; 4. Screw conveyor; 5. Feed pipe; 6. Discharge pipe; 7. Propulsion pipe; 8. Support; 9. Electric push rod; 10. Push block; 11. Positioning rod; 12. Positioning sleeve; 13. Baffle; 14. U-shaped frame; 15. Clamping rod; 16. Spring; 17. Observation window. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] Example
[0027] Reference Figures 1-4 A boiler feeding structure for preventing blockage, comprising a boiler body 2, the feeding structure further comprising:
[0028] Base plate 1 is fixedly installed at the bottom of boiler body 2;
[0029] The screw conveyor 4 is located on the top of the base plate 1, and the right end of the screw conveyor 4 is in contact with the left side of the boiler body 2. The top of the screw conveyor 4 is fixedly connected to the feed pipe 5, and the bottom of the screw conveyor 4 is fixedly connected to the discharge pipe 6.
[0030] The anti-blocking feeding assembly includes: a push tube 7, a support 8, an electric push rod 9, and a push block 10. The top of the push tube 7 is fixedly connected to the bottom end of the feed tube 6, and the right end of the push tube 7 is connected to the left side of the boiler body 2. The support 8 is fixedly installed at the bottom of the screw conveyor 4, and the bottom end of the support 8 is in contact with the top of the base plate 1. The electric push rod 9 is fixedly installed on the support 8, and the output shaft of the electric push rod 9 is fixedly installed on the left side of the push block 10. The right end of the push block 10 extends into the interior of the push tube 7 and is slidably connected to the inner wall of the push tube 7.
[0031] The mounting component is located on the top of the base plate 1 and cooperates with the bracket 8.
[0032] With the above structure: by starting the screw conveyor 4 and adding biomass fuel through the feed pipe 5, the screw conveyor 4 can stably transport the biomass fuel. Then, the biomass fuel can fall into the inside of the feed pipe 7 through the discharge pipe 6. At this time, by starting the electric push rod 9, the pusher block 10 can be driven to push the biomass fuel into the boiler body 2. In this way, a stable and continuous feeding operation of biomass fuel into the boiler body 2 can be achieved, which can avoid the situation of biomass fuel blockage during feeding and ensure the smooth feeding and production efficiency.
[0033] As a preferred embodiment of this utility model, a feed sealing pipe 3 is fixedly connected to the left side of the boiler body 2, and the right end of the push pipe 7 can be detached and inserted into the inside of the feed sealing pipe 3. By setting the feed sealing pipe 3, it is easy to connect the push pipe 7 and the boiler body 2, and the connection sealing and stability can be guaranteed.
[0034] As a preferred embodiment of this utility model, a positioning rod 11 is fixedly installed on the top of the screw conveyor 4, and a positioning sleeve 12 is fixedly installed on the left side of the boiler body 2. The right end of the positioning rod 11 can be detached and inserted into the positioning sleeve 12. By limiting the insertion between the positioning rod 11 and the positioning sleeve 12, the installation stability between the screw conveyor 4 and the boiler body 2 can be improved.
[0035] As a preferred embodiment of this utility model, an observation window 17 is provided on the front side of the propulsion tube 7. By providing the observation window 17, it is convenient for personnel to observe the feeding of biomass fuel inside the propulsion tube 7.
[0036] As a preferred embodiment of this utility model, the installation assembly includes a U-shaped frame 14, two clamping rods 15, and two springs 16. The U-shaped frame 14 is fixedly installed on the top of the base plate 1. The two clamping rods 15 pass through the front and rear sides of the U-shaped frame 14 respectively and are slidably connected to the U-shaped frame 14. The right sides of the two clamping rods 15 are in contact with the left side of the bracket 8. The springs 16 are sleeved on the corresponding clamping rods 15. One end of the spring 16 is fixedly installed on the corresponding clamping rod 15, and the other end of the spring 16 is fixedly installed on one side of the U-shaped frame 14. Through the clamping and limiting cooperation between the clamping rods 15 and the bracket 8, the leftward movement of the bracket 8 and the screw conveyor 4 can be limited, ensuring that the push pipe 7 is disengaged from the feed sealing pipe 3, and enabling stable feeding of materials into the boiler body 2.
[0037] As a preferred embodiment of this utility model, a baffle 13 is fixedly installed on the left side of the bracket 8. The top of the baffle 13 contacts the bottom of the two clamping rods 15 respectively. By setting the limiting cooperation between the baffle 13 and the clamping rods 15, the left end of the bracket 8 and the screw conveyor 4 can be restricted from moving upward, which can improve the stability of the screw conveyor 4 after installation.
[0038] It should be noted that the specific models of boiler body 2, screw conveyor 4, and electric push rod 9 used should be selected by those skilled in the art. Furthermore, the boiler body 2, screw conveyor 4, and electric push rod 9 mentioned above are all existing technologies and will not be elaborated upon in this solution.
[0039] The working principle of this utility model is as follows: In use, first connect the boiler body 2, screw conveyor 4, and electric push rod 9 to an external power source. Then, start the screw conveyor 4 and add biomass fuel through the feed pipe 5. The screw conveyor 4 then stably conveys the biomass fuel, which falls through the discharge pipe 6 into the push pipe 7. At this point, starting the electric push rod 9 drives the pusher block 10 to push the biomass fuel into the boiler body 2. This method achieves a stable and continuous feeding operation of biomass fuel into the boiler body 2, avoiding clogging during feeding and ensuring smooth feeding. In addition to improving performance and production efficiency, the insertion and limiting mechanism between the positioning rod 11 and the positioning sleeve 12, and the locking and limiting mechanism between the clamping rod 15 and the bracket 8, can limit the leftward movement of the bracket 8 and the screw conveyor 4, ensuring that the push pipe 7 and the feed sealing pipe 3 are disconnected, and enabling stable feeding into the boiler body 2. Here, the limiting mechanism between the baffle 13 and the clamping rod 15 can restrict the upward movement of the left end of the bracket 8 and the screw conveyor 4, improving the stability of the screw conveyor 4 after installation. Finally, the feed sealing pipe 3 facilitates the docking between the push pipe 7 and the boiler body 2, ensuring the sealing and stability of the connection.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A boiler feeding structure for preventing blockage, comprising a boiler body (2), characterized in that, The feeding structure also includes: A base plate (1) is fixedly installed at the bottom of the boiler body (2); The screw conveyor (4) is set on the top of the base plate (1), and the right end of the screw conveyor (4) is in contact with the left side of the boiler body (2). The top of the screw conveyor (4) is fixedly connected to the feed pipe (5), and the bottom of the screw conveyor (4) is fixedly connected to the discharge pipe (6). The anti-blocking feeding assembly includes: a push tube (7), a bracket (8), an electric push rod (9), and a push block (10). The top of the push tube (7) is fixedly connected to the bottom end of the feed tube (6), and the right end of the push tube (7) is connected to the left side of the boiler body (2). The bracket (8) is fixedly installed at the bottom of the screw conveyor (4), and the bottom end of the bracket (8) is in contact with the top of the bottom plate (1). The electric push rod (9) is fixedly installed on the bracket (8), and the output shaft of the electric push rod (9) is fixedly installed on the left side of the push block (10). The right end of the push block (10) extends into the interior of the push tube (7) and slides in connection with the inner wall of the push tube (7). The mounting component is located on the top of the base plate (1) and cooperates with the bracket (8).
2. The anti-clogging boiler feeding structure according to claim 1, characterized in that, The left side of the boiler body (2) is fixedly connected to the feed sealing pipe (3), and the right end of the push pipe (7) can be detached and inserted into the inside of the feed sealing pipe (3).
3. The anti-clogging boiler feeding structure according to claim 1, characterized in that, A positioning rod (11) is fixedly installed on the top of the screw conveyor (4), and a positioning sleeve (12) is fixedly installed on the left side of the boiler body (2). The right end of the positioning rod (11) can be detached and inserted into the positioning sleeve (12).
4. The anti-clogging boiler feeding structure according to claim 1, characterized in that, An observation window (17) is provided on the front side of the propulsion tube (7).
5. The anti-clogging boiler feeding structure according to claim 1, characterized in that, The mounting assembly includes a U-shaped frame (14), two clamping rods (15) and two springs (16). The U-shaped frame (14) is fixedly mounted on the top of the base plate (1). The two clamping rods (15) have their ends close to each other, passing through the front and rear sides of the U-shaped frame (14) respectively and slidingly connected to the U-shaped frame (14). The right sides of the two clamping rods (15) are in contact with the left side of the bracket (8). The springs (16) are sleeved on the corresponding clamping rods (15). One end of the spring (16) is fixedly mounted on the corresponding clamping rod (15), and the other end of the spring (16) is fixedly mounted on one side of the U-shaped frame (14).
6. The anti-clogging boiler feeding structure according to claim 5, characterized in that, A baffle (13) is fixedly installed on the left side of the bracket (8), and the top of the baffle (13) contacts the bottom of the two clamps (15).