A double-fuel raw coal bunker of a power plant boiler configured with a pneumatic loosening device

Abstract

The utility model relates to the technical field of power station boiler raw coal bunker, disclose a kind of power station boiler double-fuel raw coal bunker of configuration pneumatic loose device, including fixed base, the storage bin is fixedly connected in the fixed base inside, the support frame is fixedly connected in the fixed base bottom, the fixed frame is fixedly connected in the support frame right side, the base is fixedly connected in the fixed frame top, the electric push rod is fixedly connected in the base top, the baffle two is fixedly connected in the electric push rod output end, the slide bar two is fixedly connected in the baffle two left side, the rack one is fixedly connected in the slide bar two outside. In the utility model, start electric push rod, drive baffle two movement, baffle two drive slide bar two sliding, because rack one and base top gear mesh, drive gear rotation, gear drive slide bar one, slide bar one reverse sliding in fixed block two inside, baffle one moves accordingly, to realize control opening and closing.

Description

Technical Field

[0001] This utility model relates to the technical field of raw coal bunkers for power plant boilers, and in particular to a dual-fuel raw coal bunker for power plant boilers equipped with a pneumatic loosening device. Background Technology

[0002] During the operation of power plant boilers, the storage silo, as the core equipment for storing and transporting coal, often experiences problems such as bridging, arching, and blockage of raw coal due to fluctuations in the moisture content of the raw coal, uneven particle size distribution, or long-term storage factors. This leads to unstable coal feed, which in turn affects boiler combustion efficiency, increases energy consumption, and may even cause safety hazards such as boiler load fluctuations. The traditional single mechanical loosening or manual unblocking method of the storage silo is no longer able to meet the needs of modern power plants for efficient and stable operation. Against this background, dual-fuel storage silos for power plant boilers equipped with pneumatic loosening devices have emerged. The dual-fuel storage silo for power plant boilers mainly includes: a dual-fuel compatible silo body made of wear-resistant steel, with the inner wall of the silo smoothed to suit the characteristics of different fuels; a dual-fuel feeding interface and a partitioned storage area for storing raw coal and auxiliary clean fuels separately; a pneumatic loosening system consisting of a high-pressure gas source device, a ring-shaped gas distribution pipeline, adjustable loosening nozzles, and an intelligent control system; the gas distribution pipeline is arranged in a ring along different heights of the silo wall, with the nozzles facing the easily clogged areas inside the silo; a dual-fuel conveying and metering module, including feeders for raw coal and auxiliary fuels respectively, a sealed conveyor belt, and a flow metering device to ensure accurate delivery of the two fuels as needed; and a level monitoring and alarm unit that monitors the amount of different fuels in the silo in real time using a radar level gauge to prevent shortages or overflows. In the current market, most coal storage silos often encounter a problem during discharge operations: the overly complex outlet design leads to a series of issues. This complex design makes the discharge process unsmooth, prone to blockages and uneven discharge, thus affecting the efficiency and stability of the entire coal processing system. To address this, a dual-fuel raw coal silo for power plant boilers equipped with a pneumatic loosening device is proposed to solve the above problems. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a dual-fuel raw coal bin for a power plant boiler equipped with a pneumatic loosening device, aiming to improve the problem of easy blockage during material discharge.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a dual-fuel raw coal bunker for a power plant boiler equipped with a pneumatic loosening device, comprising a fixed base, a storage bin fixedly connected to the inner side of the fixed base, a support frame fixedly connected to the bottom of the fixed base, a fixed frame fixedly connected to the right side of the support frame, a base fixedly connected to the top of the fixed frame, an electric push rod fixedly connected to the top of the base, a baffle two fixedly connected to the output end of the electric push rod, a slide rod two fixedly connected to the left side of the baffle two, a rack one fixedly connected to the outer side of the slide rod two, connecting blocks fixedly connected to both the left and right sides of the baffle two, a slide rod one slidably connected to the inner side of the connecting blocks, a rack two fixedly connected to the outer side of the slide rod one, a baffle one fixedly connected to the right side of the slide rod one, and a gear rotatably connected to the top of the base.

[0005] As a further description of the above technical solution: A motor is fixedly connected to the top of the fixed base, a turntable is fixedly connected to the output end of the motor, a fixing pin is fixedly connected to the edge of the turntable, a rocker arm is provided on the outside of the fixing pin, a locking block is fixedly connected to the bottom of the fixed base, and a rocker arm is slidably connected to the inside of the locking block.

[0006] As a further description of the above technical solution: The top of the base is fixedly connected to a first fixing block, and the top of the base is fixedly connected to a second fixing block.

[0007] As a further description of the above technical solution: The first rack and the gear are meshed together, and the second rack and the gear are meshed together.

[0008] As a further description of the above technical solution: A toothed block is fixedly connected to the outside of the rocker arm, and the toothed block meshes with the rocker arm.

[0009] As a further description of the above technical solution: The second baffle and the first baffle are located at the bottom of the storage compartment.

[0010] As a further description of the above technical solution: The second slide rod is slidably connected to the inner side of the first fixed block, and the first slide rod is slidably connected to the inner side of the second fixed block.

[0011] As a further description of the above technical solution: A support base is fixedly connected to the top of the base, and the electric push rod is located on the right side of the support base.

[0012] This utility model has the following beneficial effects: 1. In this utility model, the electric push rod is activated, which drives the second baffle to move. The second baffle drives the second slide rod to slide. Because the first rack meshes with the gear at the top of the base, it drives the gear to rotate. The gear drives the first slide rod, which slides in the opposite direction inside the second fixed block. The first baffle moves accordingly, thereby realizing the control of opening and closing.

[0013] 2. In this utility model, when the motor is started, it drives the turntable to rotate. The fixing pin on the edge of the turntable moves with its circumference, which in turn drives the outer rocker arm to swing back and forth. Because the rocker arm meshes with the toothed block on the outer side of the slide rod, the rocker arm drives the toothed block and the slide rod to slide inside the locking block at the bottom of the fixed seat, thereby realizing the smooth falling of raw coal. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a dual-fuel raw coal bunker for a power plant boiler equipped with a pneumatic loosening device, as proposed in this utility model. Figure 2 This is a schematic diagram of the structure of an electric push rod for a dual-fuel raw coal bunker of a power plant boiler equipped with a pneumatic loosening device, as proposed in this utility model. Figure 3 This is a schematic diagram of the rocker arm of a dual-fuel raw coal bunker in a power plant boiler equipped with a pneumatic loosening device, as proposed in this utility model.

[0015] Legend: 1. Fixed base; 2. Storage compartment; 3. Motor; 4. Support frame; 5. Fixed frame; 6. Rocker arm; 7. Connecting block; 8. Baffle one; 9. Baffle two; 10. Fixed block one; 11. Rack one; 12. Rack two; 13. Fixed block two; 14. Base; 15. Gear; 16. Support base; 17. Electric push rod; 18. Slide rod one; 19. Slide rod two; 20. Locking block; 21. Rocker arm; 22. Turntable; 23. Fixing pin; 24. Gear block. Detailed Implementation

[0016] 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.

[0017] Reference Figures 1-3This utility model provides an embodiment of a dual-fuel raw coal silo for a power plant boiler equipped with a pneumatic loosening device. The silo includes a fixed base 1, which serves as the foundational support for the entire device, providing a stable platform for the installation of subsequent components. A storage bin 2 is fixedly connected to the inner side of the fixed base 1. The storage bin 2 stores the raw coal required by the power plant boiler and is the core storage component for achieving dual-fuel supply. A support frame 4 is fixedly connected to the bottom of the fixed base 1, providing vertical support and ensuring the overall structure remains stable during operation. A fixed frame 5 is fixedly connected to the right side of the support frame 4. The mounting bracket 5 provides lateral support points for the subsequent installation of the base 14, ensuring its stable position. The base 14 is fixedly connected to the top of the mounting bracket 5. The base 14 serves as the mounting carrier for the electric push rod 17 and gear 15 transmission components, providing an installation reference for their coordinated operation. The electric push rod 17 is fixedly connected to the top of the base 14, acting as a power output source. Its extension and retraction can drive the movement of subsequent components. A baffle 9 is fixedly connected to the output end of the electric push rod 17. The baffle 9 controls the discharge channel at the bottom of the storage bin 2; its opening and closing directly affects the falling speed of the raw coal. A sliding rod 19 is fixedly connected to the left side. The sliding rod 19 slides synchronously with the movement of the baffle 9 and guides the movement direction of the baffle 9. A rack 11 is fixedly connected to the outer side of the sliding rod 19. The rack 11 can move synchronously with the sliding rod 19, thereby driving the gear 15 meshing with it to rotate. Connecting blocks 7 are fixedly connected to both sides of the baffle 9. The connecting blocks 7 serve as the connection medium between the baffle 9 and the sliding rod 18, allowing the power of the baffle 9 to be transmitted to the sliding rod 18. The sliding rod 18 is slidably connected to the inner side of the connecting block 7. The sliding rod 18 can move along a specified path under the constraint of the connecting block 7. The sliding mechanism provides support for the movement of baffle 18. A rack 2 12 is fixedly connected to the outside of the sliding rod 18. The rack 2 12 cooperates with the gear 15. When the gear 15 rotates, it can drive the sliding rod 18 to move in the opposite direction. A baffle 18 is fixedly connected to the right side of the sliding rod 18. The baffle 18 and the baffle 2 9 work together at the bottom of the storage bin 2. The opening and closing of the two achieves precise control of the discharge amount. The top of the base 14 is rotatably connected to the gear 15. The gear 15 is the core component of the transmission. It can convert the linear motion of the rack 11 into the reverse linear motion of the rack 2 12, realizing the linkage between the baffle 18 and the baffle 2 9. Reference Figures 1-3A motor 3 is fixedly connected to the top of the fixed base 1. The motor 3 provides power for the rotation of the subsequent turntable 22 and is the power source for the entire loosening process. The output end of the motor 3 is fixedly connected to the turntable 22. The turntable 22 moves in a circular motion under the drive of the motor 3, converting the rotational power of the motor 3 into the reciprocating power of the subsequent components. A fixed pin 23 is fixedly connected to the edge of the turntable 22. The fixed pin 23 rotates synchronously with the circular motion of the turntable 22, and at the same time drives the rocker arm 21 to swing. The rocker arm 21 is provided on the outside of the fixed pin 23. The rocker arm 21, through cooperation with the fixed pin 23, converts the circular motion of the turntable 22 into its own reciprocating swing, thereby driving the toothed block 24 to move. A locking block 20 is fixedly connected to the bottom of the fixed base 1. The locking block 20 constrains the movement trajectory of the rocker arm 6, ensuring that the rocker arm 6 can only slide in a specified direction. The rocker arm 6 is slidably connected to the inside of the locking block 20. The rocker arm 6 can move in a straight line under the constraint of the locking block 20. Its movement state directly affects the loosening or conveying effect of the material inside the storage bin 2. Reference Figures 1-3 The top of the base 14 is fixedly connected to the top of the fixing block 10. The fixing block 10 guides and limits the sliding of the slide rod 19, preventing the slide rod 19 from deviating during the movement. The top of the base 14 is fixedly connected to the fixing block 13. The fixing block 13 has a similar function to the fixing block 10, and is used to constrain the movement direction of the slide rod 18 to ensure that the slide rod 18 slides stably. Reference Figures 1-3 The rack 11 and gear 15 are meshed together. This meshing relationship allows the linear motion of rack 11 to be accurately transmitted to gear 15, driving gear 15 to rotate synchronously and providing power for the subsequent motion of rack 2 12. The rack 2 12 and gear 15 are meshed together. The rotation of gear 15 can be converted into the linear motion of rack 2 12 through the meshing relationship, and the direction of motion is opposite to that of rack 11, realizing the reverse linkage between baffle 1 8 and baffle 2 9. Reference Figures 1-3 A toothed block 24 is fixedly connected to the outside of the rocker arm 6. The toothed block 24 serves as a transmission component between the rocker arm 6 and the rocker arm 21, which can convert the swing of the rocker arm 21 into the linear motion of the rocker arm 6. The toothed block 24 and the rocker arm 21 are meshed together. This meshing ensures that the power of the rocker arm 21 can be stably transmitted to the toothed block 24, thereby driving the rocker arm 6 to slide along the inner side of the locking block 20. Reference Figures 1-3 Baffle 2 9 and Baffle 1 8 are located at the bottom of storage bin 2. This position design allows them to directly act on the discharge port of storage bin 2. By controlling their opening and closing degree, they can precisely adjust the amount of raw coal falling to meet the fuel demand of the boiler under different operating conditions. Reference Figures 1-3Slide rod 19 is slidably connected to the inside of fixed block 10. The inner structure of fixed block 10 is adapted to slide rod 19, providing a stable sliding channel for slide rod 19 and preventing slide rod 19 from jamming or deviating during movement. Slide rod 18 is slidably connected to the inside of fixed block 13. Fixed block 13 also provides sliding constraint for slide rod 18, ensuring that slide rod 18 can move stably with the movement of rack 2 12, thereby driving baffle 1 8 to move precisely. Reference Figures 1-3 A support seat 16 is fixedly connected to the top of the base 14. The support seat 16 provides auxiliary support for the electric push rod 17, enhancing its stability during operation and preventing it from shifting position due to excessive force. The electric push rod 17 is located on the right side of the support seat 16. This arrangement allows the output end of the electric push rod 17 to be directly connected to the baffle 2 9, reducing power loss during power transmission and ensuring that power can be efficiently transmitted to the baffle 2 9.

[0018] Working principle: When the dual-fuel storage bin 2 of the power plant boiler equipped with the pneumatic loosening device is running, firstly, if it is necessary to adjust the discharge rate of the storage bin 2, the electric push rod 17 on the right side of the top support seat 16 of the base 14 is activated, and its output end drives the baffle 2 9 to move. The slide rod 2 19 on the left side of the baffle 2 9 slides inside the fixed block 10. The rack 11 on the outside of the slide rod 2 19 moves synchronously. Because the rack 11 meshes with the gear 15 rotatably connected to the top of the base 14, the rack 11 drives the gear 15 to rotate. Also, because the gear 15 meshes with the rack 2 12 on the outside of the slide rod 18, the gear 15 drives the slide rod 18 to slide in the opposite direction inside the fixed block 2 13. The baffle 8 on the right side of the slide rod 18 moves accordingly. The connecting blocks 7 on both sides of the second baffle 9 provide auxiliary constraint on the sliding of the first slide rod 18. Finally, the first baffle 8 and the second baffle 9 cooperate to open and close at the bottom of the storage bin 2, so as to achieve precise control of the amount of raw coal falling. At the same time, if it is necessary to loosen the raw coal in the storage bin 2, the motor 3 at the top of the fixed seat 1 is started, and its output end drives the turntable 22 to rotate. The fixed pin 23 on the edge of the turntable 22 moves with its circumference, which in turn drives the outer rocker arm 21 to swing back and forth. Because the rocker arm 21 meshes with the toothed block 24 on the outside of the rocker arm 6, the rocker arm 21 drives the toothed block 24 and the rocker arm 6 to slide inside the locking block 20 at the bottom of the fixed seat 1. The linear movement of the rocker arm 6 loosens the raw coal in the storage bin 2, ensuring that the raw coal falls smoothly.

[0019] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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 dual-fuel raw coal bunker for a power plant boiler equipped with a pneumatic loosening device, comprising a fixed base (1), characterized in that: The storage compartment (2) is fixedly connected to the inner side of the fixed base (1). The support frame (4) is fixedly connected to the bottom of the fixed base (1). The fixed frame (5) is fixedly connected to the right side of the support frame (4). The base (14) is fixedly connected to the top of the fixed frame (5). The electric push rod (17) is fixedly connected to the top of the base (14). The output end of the electric push rod (17) is fixedly connected to the baffle (9). The slide rod (19) is fixedly connected to the left side of the baffle (9). The rack (11) is fixedly connected to the outside of the slide rod (19). The connecting blocks (7) are fixedly connected to both the left and right sides of the baffle (9). The slide rod (18) is slidably connected to the inner side of the connecting block (7). The rack (12) is fixedly connected to the outside of the slide rod (18). The baffle (8) is fixedly connected to the right side of the slide rod (18). The gear (15) is rotatably connected to the top of the base (14).

2. A dual-fuel raw coal bunker for a power plant boiler equipped with a pneumatic loosening device according to claim 1, characterized in that: A motor (3) is fixedly connected to the top of the fixed base (1), a turntable (22) is fixedly connected to the output end of the motor (3), a fixing pin (23) is fixedly connected to the edge of the turntable (22), a rocker arm (21) is provided on the outside of the fixing pin (23), a locking block (20) is fixedly connected to the bottom of the fixed base (1), and a rocker arm (6) is slidably connected to the inside of the locking block (20).

3. A dual-fuel raw coal bunker for a power plant boiler equipped with a pneumatic loosening device according to claim 1, characterized in that: The top of the base (14) is fixedly connected to the top of the fixing block one (10), and the top of the base (14) is fixedly connected to the top of the fixing block two (13).

4. A dual-fuel raw coal bunker for a power plant boiler equipped with a pneumatic loosening device according to claim 1, characterized in that: The rack one (11) and the gear (15) are meshed together, and the rack two (12) and the gear (15) are meshed together.

5. A dual-fuel raw coal bunker for a power plant boiler equipped with a pneumatic loosening device according to claim 2, characterized in that: A toothed block (24) is fixedly connected to the outside of the rocker arm (6), and the toothed block (24) and the rocker arm (21) mesh with each other.

6. A dual-fuel raw coal bunker for a power plant boiler equipped with a pneumatic loosening device according to claim 1, characterized in that: The second baffle (9) and the first baffle (8) are located at the bottom of the storage compartment (2).

7. A dual-fuel raw coal bunker for a power plant boiler equipped with a pneumatic loosening device according to claim 3, characterized in that: The second slide rod (19) is slidably connected to the inside of the first fixed block (10), and the first slide rod (18) is slidably connected to the inside of the second fixed block (13).

8. A dual-fuel raw coal bunker for a power plant boiler equipped with a pneumatic loosening device according to claim 1, characterized in that: The base (14) is fixedly connected to a support seat (16) on top, and the electric push rod (17) is located on the right side of the support seat (16).

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