Quantitative feeding device of biomass boiler

Abstract

The quantitative feeding device of the biomass boiler comprises a hopper, a discharging pipe is fixedly installed at the bottom of the hopper, and an opening and closing mechanism is arranged at the bottom of the discharging pipe. The opening and closing mechanism comprises a first connecting seat, a second connecting seat, a first semicircular shell, a second semicircular shell, a connecting plate and a limiting rod, and the first connecting seat and the second connecting seat are sequentially and fixedly mounted outside the discharging pipe from top to bottom to drive the first semicircular shell and the second semicircular shell to move in an opening and closing state at the bottom of the discharging pipe; by arranging a leakage-proof shell and an electric valve, when the materials enter the feeding pipe, the materials are blocked by the electric valve, when the height of the materials reaches the control range of a horizontal height detector, a first semi-circular shell and a second semi-circular shell are closed by an air cylinder, the electric valve is opened at the moment, and the materials in the hopper can be discharged through the discharging pipe; and the materials enter the material conveying pipe, so that material feeding limitation is completed, the quantitative feeding effect is achieved, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of biomass combustion equipment technology, and in particular to a quantitative feeding device for a biomass boiler. Background Technology

[0002] Biomass boilers are a type of boiler that uses biomass energy as fuel. They are categorized into biomass steam boilers, biomass hot water boilers, biomass hot air furnaces, biomass thermal oil furnaces, vertical biomass boilers, and horizontal biomass boilers. Existing biomass boilers require manual feeding, and the varying amount of feed each time leads to incomplete combustion and reduced fuel utilization.

[0003] Existing biomass combustion equipment requires the material to be burned to be poured into the boiler for combustion. However, too much or too little material can affect the combustion effect, necessitating precise control of the material feed rate. To address this issue, we propose a biomass boiler quantitative feeding device. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Therefore, the purpose of this utility model is to provide a quantitative feeding device for biomass boilers, which can solve the problem that existing biomass combustion equipment requires the material to be burned to be poured into the boiler for combustion, but the combustion effect is affected by too much or too little material, so the amount of material fed needs to be controlled.

[0006] To solve the above-mentioned technical problems, this utility model provides a quantitative feeding device for a biomass boiler, which adopts the following technical solution: it includes a hopper, a discharge pipe is fixedly installed at the bottom of the hopper, and an opening and closing mechanism is provided at the bottom of the discharge pipe;

[0007] The opening and closing mechanism includes a first connecting seat, a second connecting seat, a first semi-circular shell, a second semi-circular shell, a connecting plate, and a limiting rod. The first connecting seat and the second connecting seat are fixedly installed on the outside of the discharge pipe from top to bottom. The first semi-circular shell and the second semi-circular shell are respectively movably hinged on both sides of the bottom of the second connecting seat. The limiting rod is fixedly installed on the front side of both the first semi-circular shell and the second semi-circular shell. A cylinder is fixedly installed on the top of the first connecting seat. A drive rod is fixedly connected to the output end of the cylinder. A connecting plate is fixedly installed on the bottom end of the drive rod. The surface of the connecting plate is provided with left and right symmetrical limiting grooves. The two limiting rods are respectively embedded and slidably disposed in the corresponding limiting grooves.

[0008] A connecting frame is fixedly installed at the bottom of the hopper, and a leak-proof shell is fixedly installed inside the connecting frame. A level detector is fixedly installed at the top of the connecting frame. The level detector is located on the left side of the leak-proof shell and is electrically connected to a cylinder. A feed pipe is fixedly installed at the bottom of the connecting frame, and a conveying pipe is fixedly installed at the bottom of the feed pipe. The feed pipe is connected to the leak-proof shell and the inside of the conveying pipe. An electric valve is sealed inside the feed pipe.

[0009] Optionally, a fixing frame is fixedly installed inside the hopper, and a first motor is fixedly installed on the top of the fixing frame, with a first drive shaft fixedly connected to the output end of the first motor.

[0010] Optionally, the bottom end of the first drive shaft extends into the inside of the hopper, and multiple stirring rods are fixedly installed on the outside of the first drive shaft, and scraper plates are fixedly installed on the outside of some of the stirring rods on the same side, with the outside of the scraper plates adhering to the inner wall of the hopper.

[0011] Optionally, a second motor is fixedly installed on the left side of the conveying pipe, and a second drive shaft is fixedly connected to the output end of the second motor.

[0012] Optionally, the right end of the second drive shaft is rotatably connected to the inner wall of the right side of the conveying pipe, and a conveying auger is fixedly installed on the outside of the second drive shaft.

[0013] Optionally, a discharge pipe is fixedly installed at the bottom of the conveying pipe, and the discharge pipe is connected to the inside of the conveying pipe.

[0014] In summary, this utility model has at least one of the following beneficial effects: 1. By setting an opening and closing mechanism, after the worker pours the material into the hopper, the cylinder starts and drives the connecting plate to move up and down through the drive rod. When the connecting plate moves, the limiting rods on the front side of the first and second semi-circular shells are affected by the limiting groove inside the connecting plate, causing the first and second semi-circular shells to move in an opening and closing state at the bottom of the discharge pipe. At this time, the material inside the hopper can be discharged through the discharge pipe. By setting a leak-proof shell and an electric valve, when the material enters the feed pipe, the electric valve blocks it. When the material height reaches the control range of the horizontal height detector, the cylinder closes the first and second semi-circular shells. At this time, the electric valve opens and the material enters the feed pipe, thereby completing the restriction of material feeding and achieving the effect of quantitative feeding. It is highly practical.

[0015] 2. By setting a first motor, the first motor starts and drives the first drive shaft to rotate. The rotation of the first drive shaft drives the stirring rod to stir the material inside the hopper, thereby avoiding the accumulation of material and making it difficult to discharge. By setting a scraper, the material adhering to the inner wall of the hopper can be scraped off, making full use of the material. By setting a second motor, the second motor starts and drives the conveying auger to rotate through the second drive shaft, thereby discharging the material at a uniform speed from the discharge pipe for combustion. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. 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.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic internal cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the overall structure of this utility model from the left side.

[0021] Explanation of reference numerals in the attached drawings: 1. Hopper; 2. Discharge pipe; 3. First connecting seat; 4. Second connecting seat; 5. First semi-circular shell; 6. Second semi-circular shell; 7. Connecting plate; 8. Limiting rod; 9. Cylinder; 10. Drive rod; 11. Limiting groove; 12. Connecting frame; 13. Leak-proof shell; 14. Level height detector; 15. Fixing frame; 16. First motor; 17. First drive shaft; 18. Stirring rod; 19. Scraper; 20. Feed pipe; 21. Conveying pipe; 22. Electric valve; 23. Second motor; 24. Second drive shaft; 25. Conveying auger; 26. Discharge pipe. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0023] Example 1, refer to Figure 1-4 In this embodiment, to address the problem that existing biomass combustion equipment requires the material to be burned to be poured into the boiler for combustion, but too much or too little material will affect the combustion effect, requiring control of the material feeding amount, this utility model discloses a biomass boiler quantitative feeding device.

[0024] Includes a hopper 1, with a discharge pipe 2 fixedly installed at the bottom of the hopper 1, and an opening and closing mechanism at the bottom of the discharge pipe 2;

[0025] The opening and closing mechanism includes a first connecting seat 3, a second connecting seat 4, a first semi-circular shell 5, a second semi-circular shell 6, a connecting plate 7, and a limiting rod 8. The first connecting seat 3 and the second connecting seat 4 are fixedly installed on the outside of the discharge pipe 2 from top to bottom. The first semi-circular shell 5 and the second semi-circular shell 6 are respectively hinged to the bottom sides of the second connecting seat 4. The limiting rod 8 is fixedly installed on the front side of the first semi-circular shell 5 and the second semi-circular shell 6. The cylinder 9 is fixedly installed on the top of the first connecting seat 3. The output end of the cylinder 9 is fixedly connected to the drive rod 10. The connecting plate 7 is fixedly installed on the bottom end of the drive rod 10. The surface of the connecting plate 7 is provided with left and right symmetrical limiting grooves 11. The two limiting rods 8 are respectively embedded and slidably arranged in the corresponding limiting grooves 11.

[0026] A connecting frame 12 is fixedly installed at the bottom of the hopper 1. A leak-proof shell 13 is fixedly installed inside the connecting frame 12. A level height detector 14 is fixedly installed at the top of the connecting frame 12. The level height detector 14 is located to the left of the leak-proof shell 13 and is electrically connected to the cylinder 9. A feed pipe 20 is fixedly installed at the bottom of the connecting frame 12. A conveying pipe 21 is fixedly installed at the bottom of the feed pipe 20. The feed pipe 20 is connected to the leak-proof shell 13 and the conveying pipe 21. An electric valve 22 is sealed inside the feed pipe 20.

[0027] The amount of material entering the conveying pipe 21 can be limited by the electric valve 22.

[0028] A fixed frame 15 is fixedly installed inside the hopper 1. A first motor 16 is fixedly installed on the top of the fixed frame 15. A first drive shaft 17 is fixedly connected to the output end of the first motor 16.

[0029] The bottom end of the first drive shaft 17 extends into the inside of the hopper 1, and multiple stirring rods 18 are fixedly installed on the outside of the first drive shaft 17. A scraper 19 is fixedly installed on the outside of some of the stirring rods 18 on the same side, and the outside of the scraper 19 is attached to the inner wall of the hopper 1.

[0030] The first motor 16 starts and drives the first drive shaft 17 to rotate. The rotation of the first drive shaft 17 drives the stirring rod 18 to stir the material inside the hopper 1, thereby avoiding the accumulation of material and making it difficult to discharge. By setting the scraper 19, the material adhering to the inner wall of the hopper 1 can be scraped off, making full use of the material.

[0031] A second motor 23 is fixedly installed on the left side of the conveying pipe 21, and a second drive shaft 24 is fixedly connected to the output end of the second motor 23.

[0032] The right end of the second drive shaft 24 is rotatably connected to the inner wall of the right side of the conveying pipe 21, and a conveying auger 25 is fixedly installed on the outside of the second drive shaft 24;

[0033] The second motor 23 starts and drives the material conveying auger 25 to rotate via the second drive shaft 24, thereby discharging the material at a uniform speed from the discharge pipe 26 for combustion.

[0034] A discharge pipe 26 is fixedly installed at the bottom of the conveying pipe 21, and the discharge pipe 26 is connected to the inside of the conveying pipe 21.

[0035] The specific working principle is as follows: First, after the worker pours the material into the hopper 1, the cylinder 9 starts and drives the connecting plate 7 to move up and down via the drive rod 10. When the connecting plate 7 moves, the limiting rods 8 on the front side of the first semi-circular shell 5 and the second semi-circular shell 6 are affected by the limiting groove 11 inside the connecting plate 7, causing the first semi-circular shell 5 and the second semi-circular shell 6 to move in an opening and closing state at the bottom of the discharge pipe 2. At this time, the material inside the hopper 1 can be discharged through the discharge pipe 2. By setting the anti-leakage shell 13 and the electric valve 22, when the material enters the feed pipe 20, the electric valve 22 will block it. When the material height reaches the control range of the horizontal height detector 14, the cylinder 9 will stop the flow. When the first semicircular shell 5 and the second semicircular shell 6 are closed, the electric valve 22 opens, and the material enters the inside of the conveying pipe 21, thus restricting the material feed. By setting the first motor 16, the first motor 16 starts and drives the first drive shaft 17 to rotate. The rotation of the first drive shaft 17 drives the stirring rod 18 to stir the material inside the hopper 1, thereby avoiding the accumulation of material and making it difficult to discharge. By setting the scraper 19, the material adhering to the inner wall of the hopper 1 can be scraped off, making full use of the material. By setting the second motor 23, the second motor 23 starts and drives the conveying auger 25 to rotate through the second drive shaft 24, thereby discharging the material at a uniform speed from the discharge pipe 26 for combustion.

[0036] The wiring diagrams of the motor and cylinder in this utility model are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the motor and cylinder will not be explained in detail.

[0037] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A biomass boiler quantitative feeding device, comprising a hopper (1), characterized in that: The bottom of the hopper (1) is fixedly installed with a discharge pipe (2), and the bottom of the discharge pipe (2) is provided with an opening and closing mechanism; The opening and closing mechanism includes a first connecting seat (3), a second connecting seat (4), a first semi-circular shell (5), a second semi-circular shell (6), a connecting plate (7), and a limiting rod (8). The first connecting seat (3) and the second connecting seat (4) are fixedly installed on the outside of the discharge pipe (2) from top to bottom. The first semi-circular shell (5) and the second semi-circular shell (6) are respectively hinged to the bottom sides of the second connecting seat (4). The limiting rod (8) is fixedly installed on the front side of the first semi-circular shell (5) and the second semi-circular shell (6). A cylinder (9) is fixedly installed on the top of the first connecting seat (3). A drive rod (10) is fixedly connected to the output end of the cylinder (9). A connecting plate (7) is fixedly installed at the bottom end of the drive rod (10). The connecting plate (7) has left and right symmetrical limiting grooves (11) on its surface. The two limiting rods (8) are respectively embedded and slidably arranged inside the corresponding limiting grooves (11). A connecting frame (12) is fixedly installed at the bottom of the hopper (1). A leak-proof shell (13) is fixedly installed inside the connecting frame (12). A level height detector (14) is fixedly installed at the top of the connecting frame (12). The level height detector (14) is located on the left side of the leak-proof shell (13) and is electrically connected to the cylinder (9). A feed pipe (20) is fixedly installed at the bottom of the connecting frame (12). A conveying pipe (21) is fixedly installed at the bottom of the feed pipe (20). The feed pipe (20) is internally connected to the leak-proof shell (13) and the conveying pipe (21). An electric valve (22) is sealed inside the feed pipe (20).

2. The biomass boiler quantitative feeding device according to claim 1, characterized in that: A fixed frame (15) is fixedly installed inside the hopper (1), and a first motor (16) is fixedly installed on the top of the fixed frame (15). A first drive shaft (17) is fixedly connected to the output end of the first motor (16).

3. The biomass boiler quantitative feeding device according to claim 2, characterized in that: The bottom end of the first drive shaft (17) extends into the inside of the hopper (1), and a plurality of stirring rods (18) are fixedly installed on the outside of the first drive shaft (17), and scraper plates (19) are fixedly installed on the outside of some of the stirring rods (18) on the same side, and the outside of the scraper plates (19) are attached to the inner wall of the hopper (1).

4. A biomass boiler quantitative feeding device according to claim 1, characterized in that: A second motor (23) is fixedly installed on the left side of the feeding pipe (21), and a second drive shaft (24) is fixedly connected to the output end of the second motor (23).

5. A biomass boiler quantitative feeding device according to claim 4, characterized in that: The right end of the second drive shaft (24) is rotatably connected to the inner wall of the right side of the conveying pipe (21), and a conveying auger (25) is fixedly installed on the outside of the second drive shaft (24).

6. A biomass boiler quantitative feeding device according to claim 1, characterized in that: A discharge pipe (26) is fixedly installed at the bottom of the conveying pipe (21), and the discharge pipe (26) is connected to the inside of the conveying pipe (21).

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