Coal bunker with flushing and coal flow monitoring function

Abstract

The utility model relates to the technical field of coal bunker equipment, and proposes a coal bunker with flushing and coal flow monitoring functions, comprising: symmetrically arranged first coal bunker and second coal bunker; a conveying conduit is arranged between the first coal bunker and the second coal bunker, and both ends of the conveying conduit are fixedly connected between the first coal bunker and the second coal bunker; a plurality of gates are arranged on the first coal bunker, the second coal bunker and the conveying conduit respectively; two anti-blocking mechanisms are fixedly installed on the conveying conduit; water is supplied to the flushing assembly and sprayed on the inner walls of the first coal bunker and the second coal bunker through an external high-pressure water supply mechanism, so that the interiors of the first coal bunker and the second coal bunker can be flushed, thereby effectively preventing coal from sticking and accumulating, avoiding blockage of the discharge opening, ensuring smooth flow of coal, and simultaneously flushing, driving the annular cylinder through the driving assembly, so that the flushing assembly rotates back and forth under the action of the annular cylinder, thereby increasing the flushing area and avoiding the occurrence of dead angles and incomplete flushing.

Description

Technical Field

[0001] This utility model relates to the field of coal bunker equipment technology, specifically to a coal bunker with washing and coal flow monitoring functions. Background Technology

[0002] In recent years, with the continuous increase in the installed capacity of new energy power plants in my country, the randomness, volatility, and intermittency of their power generation have led to increasingly higher requirements for the grid system's deep peak-shaving and flexible operation capabilities of coal-fired power units. In 2024, the capacity pricing mechanism was gradually implemented, bringing substantial incremental revenue to coal-fired power companies. Under this mechanism, the electricity price is divided into two parts: capacity pricing and energy pricing. For power generators, the capacity pricing mainly recovers fixed costs such as depreciation, labor costs, and repair costs, while the energy pricing mainly recovers variable costs such as fuel costs. Under this mechanism, energy pricing is formed through market mechanisms, sensitively reflecting changes in electricity market supply and demand and fuel costs; the capacity pricing level is adjusted annually based on local electricity supply and demand and the progress of coal-fired power transformation. Through the guidance of the capacity mechanism, some costs do not need to be recovered through electricity market bidding, further enhancing the bidding power of coal-fired power units in the electricity spot market. The two-part tariff requires coal-fired power units to meet national requirements for energy consumption, environmental protection, and flexible regulation capabilities.

[0003] This regulation clarifies that granting capacity tariffs to coal-fired power units is contingent upon their ability to fully leverage their supporting and regulating capacity value, and their strict adherence to dispatch instructions when needed by the power system. While power generation companies recover fixed costs, they will also face greater performance pressure. The unit's capacity to reduce loads, peak load capacity, and load shift rate directly impact capacity revenue, and excessive regulation may accelerate equipment wear and tear. Therefore, keeping pace with power sector reforms and promoting flexibility upgrades are crucial for the transformation of coal-fired power. In this process, the characteristics of the coal fed into the furnace become paramount, making it key to the flexibility upgrade of coal-fired power units. Therefore, improving the flexibility of coal type switching during in-furnace blending is of great significance for the flexible operation of coal-fired power units.

[0004] Currently, both domestically and internationally, precision coal blending bunkers lack flushing and coal flow monitoring mechanisms. Residual coal easily accumulates on the inner walls and bottom of the bunker, especially under conditions of high humidity or high coal viscosity. Long-term accumulation may lead to blockage of the discharge port, affecting normal coal supply and even requiring manual cleaning, increasing maintenance costs and safety risks. At the same time, it is impossible to monitor the coal flow status in real time. If flow interruption, slow flow rate, or bridging occurs, it cannot be detected and dealt with in time, which may lead to insufficient coal supply to downstream equipment, affecting the continuity and stability of production. Utility Model Content

[0005] This invention proposes a coal bunker with flushing and coal flow monitoring functions, which solves the problems of the lack of flushing and coal flow monitoring mechanisms in related technologies. Residual coal easily accumulates on the inner wall and bottom of the coal bunker, especially under conditions of high humidity or high coal viscosity. Long-term accumulation may lead to blockage of the discharge port, affecting normal coal supply, and even requiring manual cleaning, increasing maintenance costs and safety risks. At the same time, it is impossible to monitor the flow status of coal in real time. Once there is a flow interruption, slow flow rate, or bridging phenomenon, it cannot be detected and dealt with in time, which may lead to insufficient coal supply to downstream equipment, affecting the continuity and stability of production.

[0006] The technical solution of this utility model is as follows: A coal bunker with flushing and coal flow monitoring functions, comprising: The first and second coal bunkers are symmetrically arranged. A conveying conduit is installed between the first coal bunker and the second coal bunker, and both ends of the conveying conduit are fixedly connected to the first coal bunker and the second coal bunker, respectively; Multiple gates are respectively installed on the first coal bunker, the second coal bunker, and the conveying conduit; Two anti-clogging mechanisms are fixedly installed on the conveying conduit; Two symmetrically arranged ring frames are fixedly installed on the first coal bunker and the second coal bunker, respectively. Rotate the annular cylinder mounted on the inner sidewall of the annular frame; A drive assembly is installed on the ring frame to drive the ring cylinder to rotate; A flushing assembly fixedly installed on a hook on the outer wall of the annular cylinder; Connecting components are disposed on the ring frame; And a microwave level gauge installed at the bottom of the connection assembly for monitoring coal bunker levels.

[0007] Preferably, the connecting assembly includes two symmetrically arranged insertion slots on the inner side wall of the annular frame, a rectangular plate is provided on the inner side of the annular frame, and the two ends of the rectangular plate are respectively inserted into the two insertion slots, and the microwave level gauge is fixedly installed at the bottom of the rectangular plate.

[0008] Preferably, two fixing boxes are symmetrically fixedly installed on the top of the rectangular plate, and a slanted frame is inserted into the inner side of each of the two fixing boxes. An extrusion plate is fixedly installed on one side of the slanted frame, and the other side of the extrusion plate is in contact with the ring frame. Two T-shaped rods are symmetrically fixedly installed on one side of the inner wall of the fixed box, and the H-shaped frame is jointly set on the two T-shaped rods. A first spring is provided on the outer wall of the T-shaped rod, and the first spring is located in the middle between the H-shaped frame and the disc end of the T-shaped rod.

[0009] Preferably, a T-shaped frame is fixedly mounted on one side of the rectangular frame shaped like the Chinese character "Ri", two second springs are symmetrically and fixedly mounted on one side of the inner wall of the fixing box, and the other ends of the second springs are in contact with the T-shaped frame.

[0010] Preferably, rectangular grooves are formed on both sides of the inner wall of the fixing box, square blocks are arranged on the inner sides of the two rectangular grooves, and the square blocks are fixedly connected with the T-shaped frame.

[0011] Preferably, a cover plate is arranged above the fixing box, clamping plates are fixedly mounted at both ends of the cover plate, and the clamping plates are in snap connection with the clamping grooves on the outer side of the fixing box.

[0012] Preferably, the flushing assembly comprises an annular pipe fixedly mounted on a hook on the outer side of the annular cylinder, a plurality of branch pipes are fixedly mounted in sequence in a circular array on the outer side wall of the annular pipe, and a plurality of spray heads are fixedly mounted symmetrically up and down on the outer side wall of each branch pipe; A connecting pipe is fixedly mounted on the outer side wall of the spray head, the other end of the connecting pipe penetrates through the arc-shaped opening on the annular frame and is fixedly connected with a hose, and the other end of the hose is fixedly connected with an external high-pressure water supply mechanism.

[0013] Preferably, a mounting frame is fixedly mounted on the top of the annular frame, the mounting frame is located on the outer side of the connecting pipe, two connecting plates are symmetrically and fixedly mounted on the inner top wall of the mounting frame, a pressure sensor is fixedly mounted on one side of each connecting plate, and the pressure sensor is opposite to the connecting pipe.

[0014] Preferably, the driving assembly comprises an outer gear ring fixedly mounted on the outer side wall of the annular cylinder, a motor is fixedly mounted on the top of the annular frame, the output end of the motor extends to the inner side of the annular frame and is fixedly mounted with a gear, and the gear is in meshed connection with the outer gear ring.

[0015] Preferably, a handle is fixedly mounted on the top of the rectangular plate.

[0016] The working principle and beneficial effects of the utility model are as follows: 1. Water is supplied to the flushing assembly through the external high-pressure water supply mechanism and sprayed onto the inner walls of the first coal bunker and the second coal bunker, so that the interiors of the first coal bunker and the second coal bunker can be flushed, thereby effectively preventing coal from adhering and accumulating, avoiding blockage of the discharge port, and ensuring smooth flow of coal. While flushing, the driving assembly drives the annular cylinder, so that the flushing assembly rotates back and forth under the action of the annular cylinder, which can increase the flushing area and avoid dead corners and incomplete flushing.

[0017] 2. By connecting the microwave level gauge at the bottom of the component, the height of the coal level in the first and second coal bunkers can be continuously measured. This not only tells us whether there is coal, but also gives us a general idea of ​​the instantaneous flow rate. We can then determine whether the coal flow is continuous and stable, or whether there are any abnormalities such as interruption or discontinuity. In this way, we can determine whether there is a blockage or coal slugging inside. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This invention provides a structural schematic diagram of the first coal bunker. Figure 3 A cross-sectional structural diagram of the ring frame is provided for this utility model; Figure 4 A schematic diagram of the rinsing assembly is provided for this utility model; Figure 5 A structural schematic diagram of the connecting component is provided for this utility model; Figure 6 A schematic diagram of the mounting bracket is provided for this utility model; Figure 7 A structural schematic diagram of the fixing box is provided for this utility model; Figure 8 This utility model proposes Figure 6 A magnified structural diagram at point A in the diagram.

[0020] In the diagram: 1. First coal bunker; 2. Second coal bunker; 3. Conveying pipe; 4. Gate; 5. Anti-blocking mechanism; 6. Circular frame; 7. Drive assembly; 71. External gear ring; 72. Motor; 8. Flushing assembly; 81. Ring pipe; 82. Branch pipe; 83. Nozzle; 84. Connecting pipe; 85. Hose; 9. Connecting component; 91. Insertion slot; 92. Rectangular plate; 10. Microwave level gauge; 11. Fixing box; 12. H-shaped frame; 13. Extrusion plate; 14. T-shaped rod; 15. First spring; 16. T-shaped frame; 17. Second spring; 18. Rectangular groove; 19. Cover plate; 20. Snap-fit ​​plate; 21. Annular cylinder; 22. Mounting bracket; 23. Connecting plate; 24. Pressure sensor. Detailed Implementation

[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1 Please see Figure 1 - Figure 8 A coal bunker with flushing and coal flow monitoring functions, comprising: The first coal bunker 1 and the second coal bunker 2 are symmetrically arranged; The conveying conduit 3 is installed between the first coal bunker 1 and the second coal bunker 2, and both ends of the conveying conduit 3 are fixedly connected to the first coal bunker 1 and the second coal bunker 2 respectively. Multiple gates 4 are respectively installed on the first coal bunker 1, the second coal bunker 2 and the conveying pipe 3; Two anti-blocking mechanisms 5 are fixedly installed on the conveying conduit 3; Two symmetrically arranged ring frames 6 are fixedly installed on the first coal bunker 1 and the second coal bunker 2, respectively. Rotate the annular cylinder 21 that is mounted on the inner wall of the annular frame 6; A drive assembly 7 is mounted on the ring frame 6 to drive the ring cylinder 21 to rotate; A flushing assembly 8 is fixedly installed on a hook on the outer wall of the annular cylinder 21; Connecting component 9 is mounted on ring frame 6; And a microwave level gauge 10 for coal bunker level monitoring is installed at the bottom of the connecting component 9.

[0023] This utility model provides a coal bunker with flushing and coal flow monitoring functions. In use, the microwave level gauge 10 connected to the component 9 can continuously measure the coal level in the first coal bunker 1 and the second coal bunker 2. This not only tells us whether there is coal, but also roughly tells us the instantaneous flow rate, and determines whether the coal flow is continuous and stable, or whether there is an interruption or other abnormal situation. This can help us determine if there is a blockage or coal slugging inside. When the coal is used up and needs to be cleaned, water is supplied to the flushing component 8 through an external high-pressure water supply mechanism. The flushing component 8 sprays water onto the inner walls of the first coal bunker 1 and the second coal bunker 2, thereby flushing the inside of the first coal bunker 1 and the second coal bunker 2. This effectively prevents coal from sticking and accumulating, avoids blockage of the discharge port, and ensures smooth coal flow. At the same time as flushing, the external controller starts the drive component 7 and drives the annular cylinder 21 mounted on the annular frame 6 to rotate. This allows the flushing component 8 to rotate back and forth under the action of the annular cylinder 21, thereby increasing the flushing area and avoiding dead corners and incomplete flushing.

[0024] Furthermore, the connecting component 9 includes two symmetrically arranged insertion slots 91 on the inner side wall of the annular frame 6. A rectangular plate 92 is provided on the inner side of the annular frame 6, and the two ends of the rectangular plate 92 are respectively inserted into the two insertion slots 91. The microwave level gauge 10 is fixedly installed at the bottom of the rectangular plate 92.

[0025] Specifically, the rectangular plate 92 is manually inserted into the insertion slot 91 on the ring frame 6, so that the microwave level gauge 10 can be installed on the ring frame 6 for use.

[0026] Furthermore, the flushing assembly 8 includes an annular tube 81 fixedly installed on the hook on the outside of the annular cylinder 21. Multiple branch tubes 82 are fixedly installed in a circular array on the outer wall of the annular tube 81. Multiple nozzles 83 are fixedly installed symmetrically on the outer wall of the branch tubes 82. A connecting pipe 84 is fixedly installed on the outer wall of the nozzle 83. The other end of the connecting pipe 84 passes through the arc-shaped opening on the annular frame 6 and is fixedly connected to a hose 85. The other end of the hose 85 is fixedly connected to an external high-pressure water supply mechanism.

[0027] Specifically, through the connecting pipe 84 and the hose 85, the external high-pressure water supply mechanism can supply water to the annular pipe 81. Then, the water in the annular pipe 81 enters the branch pipe 82 and is sprayed out from the nozzle 83, thereby flushing the interior of the first coal bunker 1 and the second coal bunker 2, effectively preventing coal from sticking and accumulating, avoiding blockage of the discharge port, and ensuring smooth coal flow.

[0028] Furthermore, a mounting bracket 22 is fixedly installed on the top of the ring frame 6, and the mounting bracket 22 is located outside the connecting pipe 84. Two connecting plates 23 are symmetrically fixedly installed on the inner top wall of the mounting bracket 22. A pressure sensor 24 is fixedly installed on one side of the connecting plate 23, and the pressure sensor 24 is opposite to the connecting pipe 84.

[0029] Specifically, when the drive assembly 7 drives the annular cylinder 21 to rotate, the annular cylinder 21 drives the flushing assembly 8 to rotate synchronously. When the connecting pipe 84 contacts the pressure sensor 24 on one of the connecting plates 23, it immediately inputs a pressure signal to the external controller. Then the controller controls the drive assembly 7 to rotate in reverse. When the reverse-rotating connecting pipe 84 contacts the pressure sensor 24 on the other connecting plate 23, the pressure sensor 24 immediately inputs a pressure signal to the external controller. Then the controller controls the drive assembly 7 to rotate in the forward direction, so that the flushing assembly 8 can rotate back and forth, thereby increasing the spraying area of ​​the hose 85 while preventing the hose 85 from kinking.

[0030] Furthermore, the drive assembly 7 includes an external gear ring 71 fixedly mounted on the outer wall of the annular cylinder 21, a motor 72 fixedly mounted on the top of the annular frame 6, and a gear fixedly mounted on the inner side of the output end of the motor 72 extending to the annular frame 6, with the gear meshing with the external gear ring 71.

[0031] Specifically, the motor 72 drives the gear to rotate, and the rotating gear, through the external gear ring 71 that meshes with it, can drive the annular cylinder 21 and the rinsing assembly 8 to rotate.

[0032] Furthermore, a handle is fixedly installed on the top of the rectangular plate 92.

[0033] Specifically, the handle facilitates manual removal of the rectangular plate 92 from the ring frame 6.

[0034] Example 2 Based on Embodiment 1, in this embodiment: two fixing boxes 11 are symmetrically fixedly installed on the top of the rectangular plate 92. A slanted frame 12 is inserted into the inner side of each fixing box 11. An extrusion plate 13 is fixedly installed on one side of the slanted frame 12, and the other side of the extrusion plate 13 is in contact with the ring frame 6. Two T-shaped rods 14 are symmetrically fixedly installed on one side of the inner wall of the fixing box 11, and the slanted frame 12 is set on the two T-shaped rods 14. A first spring 15 is set on the outer wall of the T-shaped rod 14, and the first spring 15 is located in the middle between the slanted frame 12 and the disc end of the T-shaped rod 14.

[0035] The technical solution provided in this embodiment is as follows: after the rectangular plate 92 is inserted into the insertion slot 91 on the ring frame 6, the spring force of the first spring 15 on the T-shaped rod 14 pushes the H-shaped frame 12, so that the H-shaped frame 12 can move stably under the action of the T-shaped rod 14, and the pressing plate 13 contacts and presses against the ring frame 6, so that the rectangular plate 92 can be stably fixed on the ring frame 6.

[0036] Furthermore, a T-shaped frame 16 is fixedly installed on one side of the frame 12, and two second springs 17 are symmetrically fixedly installed on one side of the inner wall of the fixing box 11, with the other end of the second spring 17 in contact with the T-shaped frame 16.

[0037] Specifically, by pushing the T-shaped frame 16 with the second spring 17, the contact extrusion effect between the extrusion plate 13 and the ring frame 6 can be improved.

[0038] Furthermore, rectangular grooves 18 are provided on both sides of the inner wall of the fixing box 11, and square blocks are provided on the inner side of the two rectangular grooves 18, and the square blocks are fixedly connected to the T-shaped frame 16.

[0039] Specifically, the rectangular slot 18 and the square block can improve the stability of the moving frame 12.

[0040] Furthermore, a cover plate 19 is provided on the top of the fixing box 11, and a snap-fit ​​plate 20 is fixedly installed on both ends of the cover plate 19, and the snap-fit ​​plate 20 is snapped into the snap-fit ​​groove on the outside of the fixing box 11.

[0041] Specifically, the cover plate 19 is manually placed on the fixed box 11, and the snap-fit ​​plate 20 is snapped into the snap-fit ​​groove on the fixed box 11, so that the cover plate 19 can be stably fixed on the fixed box 11, thereby protecting the mechanical parts inside the fixed box 11 and effectively reducing the entry of dust and impurities into the fixed box 11.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A coal bunker with flushing and coal flow monitoring functions, characterized in that, include: The first coal bunker (1) and the second coal bunker (2) are symmetrically arranged. A conveying conduit (3) is provided between the first coal bunker (1) and the second coal bunker (2), and both ends of the conveying conduit (3) are fixedly connected to the first coal bunker (1) and the second coal bunker (2) respectively; Multiple gates (4) are respectively installed on the first coal bunker (1), the second coal bunker (2) and the conveying pipe (3); Two anti-blocking mechanisms (5) are fixedly installed on the conveying conduit (3); Two symmetrically arranged ring frames (6) are fixedly installed on the first coal bunker (1) and the second coal bunker (2), respectively. Rotate the annular cylinder (21) mounted on the inner side wall of the annular frame (6). A drive assembly (7) is mounted on the ring frame (6) for rotating the ring cylinder (21). A flushing assembly (8) is fixedly installed on a hook on the outer side wall of the annular cylinder (21); The connecting assembly (9) is provided on the ring frame (6); And a microwave level gauge (10) installed at the bottom of the connection assembly (9) for coal bunker level monitoring.

2. A coal bunker with flushing and coal flow monitoring functions according to claim 1, characterized in that: The connecting assembly (9) includes two insertion slots (91) symmetrically opened on the inner side wall of the ring frame (6). A rectangular plate (92) is provided on the inner side of the ring frame (6), and the two ends of the rectangular plate (92) are respectively inserted into the two insertion slots (91). The microwave level gauge (10) is fixedly installed at the bottom of the rectangular plate (92).

3. A coal bunker with flushing and coal flow monitoring functions according to claim 2, characterized in that: Two fixing boxes (11) are symmetrically fixedly installed on the top of the rectangular plate (92). A slanted frame (12) is inserted into the inner side of each of the two fixing boxes (11). An extrusion plate (13) is fixedly installed on one side of the slanted frame (12), and the other side of the extrusion plate (13) is in contact with the ring frame (6). Two T-shaped rods (14) are symmetrically fixed on one side of the inner wall of the fixed box (11), and the sun frame (12) is set on the two T-shaped rods (14). A first spring (15) is provided on the outer wall of the T-shaped rod (14), and the first spring (15) is located in the middle between the sun frame (12) and the disc end of the T-shaped rod (14).

4. A coal bunker with flushing and coal flow monitoring functions according to claim 3, characterized in that: A T-shaped frame (16) is fixedly installed on one side of the sun-shaped frame (12), and two second springs (17) are symmetrically fixedly installed on one side of the inner wall of the fixing box (11), with the other end of the second spring (17) in contact with the T-shaped frame (16).

5. A coal bunker with flushing and coal flow monitoring functions according to claim 4, characterized in that: The inner walls of the fixed box (11) are provided with rectangular grooves (18) on both sides, and square blocks are provided on the inner sides of the two rectangular grooves (18), and the square blocks are fixedly connected to the T-shaped frame (16).

6. A coal bunker with flushing and coal flow monitoring functions according to claim 5, characterized in that: A cover plate (19) is provided on the top of the fixed box (11). Both ends of the cover plate (19) are fixedly installed with snap-fit ​​plates (20), and the snap-fit ​​plates (20) are snapped into the snap-fit ​​grooves on the outside of the fixed box (11).

7. A coal bunker with flushing and coal flow monitoring functions according to claim 1, characterized in that: The flushing assembly (8) includes an annular tube (81) fixedly installed on the hook on the outside of the annular cylinder (21). Multiple branch pipes (82) are fixedly installed in a circular array on the outer wall of the annular tube (81). Multiple nozzles (83) are fixedly installed symmetrically on the outer wall of the branch pipes (82). A connecting pipe (84) is fixedly installed on the outer wall of the nozzle (83). The other end of the connecting pipe (84) passes through the arc-shaped opening on the ring frame (6) and is fixedly connected to a hose (85). The other end of the hose (85) is fixedly connected to an external high-pressure water supply mechanism.

8. A coal bunker with flushing and coal flow monitoring functions according to claim 7, characterized in that: A mounting bracket (22) is fixedly installed on the top of the ring frame (6), and the mounting bracket (22) is located on the outside of the connecting pipe (84). Two connecting plates (23) are symmetrically fixedly installed on the inner top wall of the mounting bracket (22). A pressure sensor (24) is fixedly installed on one side of the connecting plate (23), and the pressure sensor (24) is opposite to the connecting pipe (84).

9. A coal bunker with flushing and coal flow monitoring functions according to claim 1, characterized in that: The drive assembly (7) includes an external gear ring (71) fixedly mounted on the outer wall of the annular cylinder (21), a motor (72) fixedly mounted on the top of the annular frame (6), and a gear fixedly mounted on the inner side of the annular frame (6) at the output end of the motor (72), and the gear meshes with the external gear ring (71).

10. A coal bunker with flushing and coal flow monitoring functions according to claim 2, characterized in that: A handle is fixedly installed on the top of the rectangular plate (92).

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