Anti-coal-blocking structure of boiler coal feeding pipe

Abstract

The utility model belongs to the technical field of boiler coal feeding, and particularly relates to an anti-coal-blocking structure of a boiler coal feeding pipe, which comprises a boiler body. One side of the boiler body communicates with a conveying pipe, and the conveying pipe is fixedly connected to the side wall of the boiler body through a first fixing rod. One end of the conveying pipe is fixedly connected with a feeding hopper; the conveying pipe is fixedly connected with a pair of fixing plates; sliding grooves are formed in the side walls of the pair of fixing plates. A striking assembly is arranged in the sliding groove; the beating assembly is used for automatically beating the conveying pipe so as to solve the problems that safe and stable operation of the boiler is seriously affected by the coal blockage condition, the operation cost of the boiler is increased, the economic benefits of the boiler are reduced, at the moment, a coal feeding pipe is often required to be manually beaten at the coal blockage position through a sledge hammer, and coal can be smoothly fed at the coal blockage position through vibration; therefore, the manual workload of the boiler is greatly increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler coal feeding, in particular to a coal blocking prevention structure of a boiler coal feeding pipe. Background Art

[0002] Smooth coal feeding to the boiler is essential for proper operation. Coal in a circulating fluidized bed boiler typically enters the furnace through a feeder pipe after exiting the feeder. For common coal types, controlling the feeder pipe angle and increasing the amount of airflow allows for smooth coal delivery into the furnace. However, for coal types with high moisture content, the coal often becomes clogged somewhere in the feeder pipe after entering, making it impossible to deliver the coal smoothly into the furnace even with increased airflow pressure and volume.

[0003] In the existing technology, coal blockage seriously affects the safe and stable operation of the boiler, increases the operating cost of the boiler, and reduces the economic benefits of the boiler. At this time, it is often necessary to manually hit the coal feeding pipe with a sledgehammer at the coal blockage to allow smooth coal feeding at the blocked coal location through vibration. This greatly increases the manual workload of the boiler.

[0004] To this end, the utility model provides a coal blocking prevention structure for a boiler coal feeding pipe. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology and solve the problem of coal blockage that seriously affects the safe and stable operation of the boiler, increases the operating cost of the boiler, and reduces the economic benefits of the boiler, it is often necessary to manually hit the coal feeding pipe with a sledgehammer at the coal blockage to allow smooth coal feeding at the blocked coal location through vibration. This greatly increases the manual workload of the boiler.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the coal blocking prevention structure of the boiler coal feeding pipe described in the present invention includes a boiler body; a conveying pipe is connected to one side of the boiler body, and the conveying pipe is fixedly connected to the side wall of the boiler body through a first fixing rod; a feed hopper is fixedly connected to one end of the conveying pipe; a pair of fixing plates are fixedly connected to the conveying pipe; the side walls of the pair of fixing plates are each provided with a sliding groove; a striking assembly is provided in the sliding groove; the striking assembly is used for automatically striking the conveying pipe.

[0007] Preferably, the striking assembly includes a striking unit, a moving unit and a fixed block; a pair of the fixed blocks are slidably connected in the sliding groove through a sliding block; a pair of the fixed block side walls are fixedly connected with a rectangular block; a first rotating rod is fixedly connected and rotatably connected between the opposite side walls of the pair of rectangular blocks, and one end of the first rotating rod passes through the rectangular block; the side wall of the rectangular block is fixedly connected with a first motor through a first L-shaped rod; the output end of the first motor is drivingly connected to the first rotating rod.

[0008] Preferably, the striking unit comprises a circular block; the circular block is fixedly connected to the first rotating rod; a group of circular rods are fixedly connected to the circular block; one end of each group of circular rods is fixedly connected to a striking hammer.

[0009] Preferably, the moving unit includes a rack; the rack is fixed to the side wall of the fixed plate; a gear is provided on the first rotating rod; and the gear and the rack are meshed with each other.

[0010] Preferably, a pair of second rotating rods are rotatably connected between the opposite side walls of the feed hopper; one end of the pair of second rotating rods passes through the side wall of the feed hopper; a group of crushing knives are fixedly connected to the pair of second rotating rods; a pair of second motors are fixedly connected to the feed hopper through a pair of second L-shaped rods; the output end of the second motor is drivingly connected to the second rotating rod.

[0011] Preferably, a rubber pad is provided on the striking hammer.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model discloses a coal-blocking prevention structure for a boiler coal feeding pipe. A first motor is provided to drive a first rotating rod to rotate, thereby driving a circular block to rotate through the first rotating rod, thereby driving a group of circular rods and a striking hammer to rotate. The striking hammer can be used to strike the surface of the conveying pipe to generate vibration, thereby reducing the workload of the staff.

[0014] 2. The utility model discloses a coal-blocking prevention structure for a boiler coal feeding pipe. A pair of second motors are provided to drive a pair of second rotating rods to rotate, thereby driving the crushing knives to rotate relative to each other, thereby crushing the coal blocks, thereby preventing large pieces of coal from easily clogging the delivery pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the fixing plate in the present utility model;

[0018] Figure 3 It is a schematic diagram of a circular block in the present utility model;

[0019] Figure 4 It is a schematic diagram of the rack in the present utility model;

[0020] Figure 5 This is a schematic diagram of the crushing knife in the utility model;

[0021] In the figure: 1. Boiler body; 2. Conveying pipe; 3. Feed hopper; 4. Fixed plate; 5. Sliding groove; 6. Fixed block; 7. Rectangular block; 8. First rotating rod; 9. First motor; 10. Circular block; 11. Circular rod; 12. Beating hammer; 13. Rack; 14. Gear; 15. Second rotating rod; 16. Crushing knife; 17. Second motor. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1 to 5 As shown, the anti-blocking coal structure of the boiler coal feeding pipe described in the embodiment of the present invention includes a boiler body 1; a conveying pipe 2 is connected to one side of the boiler body 1, and the conveying pipe 2 is fixed to the side wall of the boiler body 1 through a first fixing rod; a feed hopper 3 is fixed to one end of the conveying pipe 2; a pair of fixing plates 4 are fixed to the conveying pipe 2; a pair of the fixing plates 4 are provided with sliding grooves 5 on the side walls; a striking component is provided in the sliding groove 5; the striking component is used to automatically strike the conveying pipe 2. When working, the striking component can automatically strike the conveying pipe 2 to generate vibration, thereby unblocking the conveying pipe 2, thereby solving the problem that manual labor is often required to use a sledgehammer to knock the coal feeding pipe at the blocked coal location, so that the blocked coal location can be smoothly fed with coal through vibration, which greatly increases the manual workload of the boiler.

[0024] The striking assembly includes a striking unit, a moving unit and a fixed block 6; a pair of the fixed blocks 6 are slidably connected in the sliding groove 5 through a sliding block; a pair of the fixed blocks 6 side walls are fixed with rectangular blocks 7; a first rotating rod 8 is fixedly connected and rotatably connected between the opposite side walls of a pair of rectangular blocks 7, and one end of the first rotating rod 8 passes through the rectangular block 7; the side wall of the rectangular block 7 is fixed with a first motor 9 through a first L-shaped rod; the output end of the first motor 9 is drive-connected to the first rotating rod 8. When working, the first rotating rod 8 is driven to rotate by the motor, thereby driving the striking unit set on the first rotating rod 8 to strike the conveying pipe 2, and the moving unit can drive the whole to move on the conveying pipe 2, so that vibration can be generated by striking, avoiding the need to perform striking and increase the workload of the staff.

[0025] The striking unit includes a circular block 10; the circular block 10 is fixedly connected to the first rotating rod 8; a group of circular rods 11 are fixedly connected to the circular block 10; one end of a group of circular rods 11 is fixedly connected to a striking hammer 12. When working, the first rotating rod 8 is driven to rotate by the first motor 9, and the circular block 10 is driven to rotate by the first rotating rod 8, which can drive the group of circular rods 11 and the striking hammer 12 to rotate, and the striking hammer 12 can be used to strike the surface of the conveying pipe 2 to generate vibration, thereby reducing the workload of the staff.

[0026] The moving unit includes a rack 13; the rack 13 is fixed to the side wall of the fixed plate 4; a gear 14 is on the first rotating rod 8; the gear 14 and the rack 13 are meshed with each other. When working, the gear 14 is engaged with the rack 13, so that it can move under the drive of the motor, thereby driving a group of striking hammers 12 to move up and down, so that multiple positions of the conveying pipe 2 can be struck, thereby avoiding the situation where the striking effect of a single position is not obvious enough.

[0027] A pair of second rotating rods 15 are rotatably connected between the opposite side walls of the feed hopper 3; one end of the pair of second rotating rods 15 passes through the side wall of the feed hopper 3; a group of crushing knives 16 are fixedly connected to the pair of second rotating rods 15; a pair of second motors 17 are fixedly connected to the feed hopper 3 through a pair of second L-shaped rods; the output end of the second motor 17 is drive-connected to the second rotating rods 15. When working, the pair of second motors 17 drive the pair of second rotating rods 15 to rotate, thereby driving the crushing knives 16 to rotate relative to each other, thereby crushing the coal blocks, thereby preventing large pieces of coal from easily clogging the conveying pipe 2.

[0028] The striking hammer 12 is provided with a rubber pad. When working, the rubber pad on the striking hammer 12 can play a certain protective role while the striking hammer 12 hits and vibrates the conveying pipe 2, thereby avoiding damage to the conveying pipe 2 caused by excessive striking.

[0029] Working principle: Through the provided striking assembly, the conveying pipe 2 can be automatically struck to generate vibration, thereby unblocking the conveying pipe 2, thereby solving the problem of often having to manually hit the coal feeding pipe with a sledgehammer at the coal blockage. The vibration allows the coal to be fed smoothly at the coal blockage, which greatly increases the manual workload of the boiler. The first rotating rod 8 is driven to rotate by the motor, thereby driving the striking unit provided on the first rotating rod 8 to strike the conveying pipe 2, and the moving unit can drive the entire body to move on the conveying pipe 2, thereby generating vibration by striking, avoiding the need for striking and increasing the workload of the staff. The first motor 9 is provided to drive the first rotating rod 8 to rotate, thereby driving the circular block 10 to rotate through the first rotating rod 8, which can drive a group of circular rods 11 and the striking hammer. 12 is rotated, and the surface of the conveying pipe 2 can be struck by the striking hammer 12 to generate vibration, thereby reducing the workload of the staff. The gear 14 is engaged with the rack 13, so that it can move under the drive of the motor, thereby driving a group of striking hammers 12 to move up and down, so that multiple positions of the conveying pipe 2 can be struck, thereby avoiding the striking effect of a single position being not obvious enough. A pair of second motors 17 are provided to drive a pair of second rotating rods 15 to rotate, thereby driving the crushing knife 16 to rotate relative to each other, thereby crushing the coal blocks, thereby avoiding large pieces of coal from easily clogging the conveying pipe 2. A rubber pad is provided on the striking hammer 12, which can play a certain protective role while the striking hammer 12 strikes and vibrates the conveying pipe 2, thereby avoiding damage to the conveying pipe 2 caused by excessive striking.

[0030] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A coal blocking prevention structure for a boiler coal feeding pipe, characterized in that: The invention comprises a boiler body (1); a delivery pipe (2) is connected to one side of the boiler body (1), and the delivery pipe (2) is fixedly connected to the side wall of the boiler body (1) via a first fixing rod; a feed hopper (3) is fixedly connected to one end of the delivery pipe (2); a pair of fixing plates (4) are fixedly connected to the delivery pipe (2); sliding grooves (5) are provided on the side walls of the pair of fixing plates (4); a striking assembly is provided in the sliding groove (5); and the striking assembly is used for automatically striking the delivery pipe (2).

2. The anti-coal blocking structure of a boiler coal feeding pipe according to claim 1, characterized in that: The striking assembly comprises a striking unit, a moving unit and a fixed block (6); a pair of the fixed blocks (6) are both slidably connected in the sliding groove (5) via a sliding block; a rectangular block (7) is fixedly connected to the side walls of the pair of the fixed blocks (6); a first rotating rod (8) is fixedly connected and rotatably connected between the opposite side walls of the pair of rectangular blocks (7), and one end of the first rotating rod (8) passes through the rectangular block (7); a first motor (9) is fixedly connected to the side wall of the rectangular block (7) via a first L-shaped rod; and an output end of the first motor (9) is drivingly connected to the first rotating rod (8).

3. The anti-coal blocking structure of a boiler coal feeding pipe according to claim 2, characterized in that: The striking unit comprises a circular block (10); the circular block (10) is fixedly connected to a first rotating rod (8); a group of circular rods (11) are fixedly connected to the circular block (10); and a striking hammer (12) is fixedly connected to one end of each group of circular rods (11).

4. The anti-coal blocking structure of a boiler coal feeding pipe according to claim 3, characterized in that: The moving unit comprises a rack (13); the rack (13) is fixedly connected to the side wall of the fixed plate (4); a gear (14) is disposed on the first rotating rod (8); and the gear (14) and the rack (13) are meshed and connected with each other.

5. The anti-coal blocking structure of a boiler coal feeding pipe according to claim 4, characterized in that: A pair of second rotating rods (15) are rotatably connected between opposite side walls of the feed hopper (3); one end of the pair of second rotating rods (15) passes through the side wall of the feed hopper (3); a group of crushing knives (16) are fixedly connected to the pair of second rotating rods (15); a pair of second motors (17) are fixedly connected to the feed hopper (3) via a pair of second L-shaped rods; and the output end of the second motor (17) is drivingly connected to the second rotating rods (15).

6. The anti-coal blocking structure of a boiler coal feeding pipe according to claim 5, characterized in that: The striking hammer (12) is provided with a rubber pad.

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