Anti-blocking coal discharging device for raw coal bunker outlet

Abstract

The utility model discloses a kind of anti-blocking coal discharging devices for raw coal bunker outlet, belong to raw coal bunker coal discharging device anti-blocking technical field, including top pipeline, bottom pipeline, excitation mechanism, synchronous outer frame, support ring, transmission rod and excitation basket;Top pipeline is sleeved below raw coal bunker outlet, and excitation mechanism is fixed on the outer side wall of top pipeline;Bottom pipeline is fixed below top pipeline;Synchronous outer frame is coaxially sleeved on the outer side of bottom pipeline, support ring is arranged on the outer side wall of bottom pipeline, and the top of synchronous outer frame and support ring are elastically connected;Excitation basket is fixed on the bottom of synchronous outer frame, and the top of excitation basket extends towards inside bottom pipeline;One end of transmission rod and the output end of excitation mechanism are fixedly connected, and the other end of transmission rod and the outer side wall of synchronous outer frame are fixedly connected.The utility model uses the excitation transmission structure suspended in the inner side, outer side wall of bottom pipeline to make vibration part separate from pipeline main body, and vibration no longer affects pipeline strength and life.

Description

Technical Field

[0001] This utility model relates to an anti-clogging coal discharge device for the outlet of a raw coal bunker, belonging to the technical field of anti-clogging coal discharge devices for raw coal bunkers. Background Technology

[0002] Raw coal bunkers are commonly used storage facilities in the storage and transportation of coal. Due to the inherent moisture, stickiness, and uneven particle size distribution of raw coal, coupled with factors such as compaction and temperature changes during storage, blockages frequently occur at the bunker outlet. This prevents the smooth flow of raw coal from the bunker, affecting the normal operation of subsequent coal conveying systems and consequently causing serious impacts on the entire production process of thermal power plants, coal mines, and other related sectors.

[0003] Before the widespread use of dredging and vibration devices, traditional dredging methods included manual tamping and air cannon purging. Manual tamping was not only labor-intensive and inefficient, but also posed safety hazards, with operators easily injured.

[0004] While air cannons can help clear blockages to some extent, they are often ineffective for cases with highly viscous substances or severe blockages. Furthermore, the installation and maintenance costs of air cannons are relatively high.

[0005] Based on the above problems, a more efficient, reliable, and safer equipment for clearing coal bunker outlets is needed, leading to the development of the coal bunker outlet clearing vibrating device. It utilizes the principle of mechanical vibration, using a vibrator to periodically vibrate the bunker wall at the outlet, causing the coal adhering to the wall to fall off and preventing coal accumulation and blockage of the outlet.

[0006] The existing technology of unblocking vibration mainly involves fixing an excitation device on the outer wall of the coal chute and unblocking it by striking the coal chute body. However, the coal chute is fixed to each other by a flange structure, and long-term axial striking can easily cause damage to the flange joint, affecting the strength and life of the raw coal bunker pipeline. Utility Model Content

[0007] The purpose of this invention is to provide an anti-clogging coal discharge device for the outlet of a raw coal bunker, which achieves unblocked coal discharge without affecting the strength and lifespan of the raw coal bunker pipeline.

[0008] To achieve the above objectives, this utility model employs the following technical solution:

[0009] This utility model provides an anti-clogging coal discharge device for the outlet of a raw coal bunker, including a top pipe, a bottom pipe, a vibration mechanism, a synchronous outer frame, a support ring, a transmission rod, and a vibration basket;

[0010] The top pipe is fitted below the outlet of the raw coal bunker, and the vibration mechanism is fixed to the outer wall of the top pipe.

[0011] The bottom pipe is fixed below the top pipe. The bottom pipe is designed to taper from top to bottom, and the constricted end of the bottom pipe is the coal outlet end.

[0012] The synchronization frame is also designed to be tapered from top to bottom and coaxially fitted to the outside of the bottom pipe. The support ring is set on the outer wall of the bottom pipe. The top of the synchronization frame and the support ring are elastically connected. A first floating gap is provided between the synchronization frame and the bottom pipe.

[0013] The excitation basket is fixed to the bottom of the synchronization frame, and the top of the excitation basket extends into the bottom pipe. A second floating gap is provided between the outer wall of the excitation basket and the inner wall of the bottom pipe, and the second floating gap is filled with cushioning material.

[0014] One end of the transmission rod is fixedly connected to the output end of the excitation mechanism, and the other end of the transmission rod is fixedly connected to the outer wall of the synchronous outer frame.

[0015] Furthermore, it also includes a plurality of connecting ear arrays arranged in a ring array on the outer side wall of the synchronization frame. Each group of connecting ear arrays includes a plurality of connecting ears arranged in a straight line array along the inclined surface of the outer side wall of the synchronization frame. The transmission rod passes through each connecting ear of the same connecting ear array.

[0016] Furthermore, the outer frame of the synchronization mechanism and the support ring are elastically connected by a shock-absorbing rubber ring. The shock-absorbing rubber ring includes a longitudinal shock-absorbing part and a radial shock-absorbing part that is vertically fixed to the inner ring of the longitudinal shock-absorbing part. The longitudinal shock-absorbing part includes an annular hollow shock-absorbing ring located between the support ring and the top of the outer frame of the synchronization mechanism. The radial shock-absorbing part includes a support ring fixed to the inner ring of the shock-absorbing ring. The inner wall of the support ring is provided with a number of annular floating rings arranged in a straight line array. The floating rings are located between the inner wall of the outer frame of the synchronization mechanism and the outer wall of the bottom pipe.

[0017] Furthermore, it also includes a bottom synchronizing plate and a flange, wherein the bottom synchronizing plate is fixed to the bottom of the synchronizing outer frame via the flange, and the excitation basket is fixed to the bottom synchronizing plate.

[0018] Furthermore, it also includes a number of inner connecting rods arranged in a ring array on the bottom synchronization disk, the inner connecting rods being fixed to the outer wall of the excitation basket.

[0019] Furthermore, it also includes a number of connecting rings arranged in a linear array on the excitation basket, with the inner connecting rod passing through each connecting ring for fixation.

[0020] Furthermore, the inner connecting rod is fixed to the bottom synchronous disc by two sets of locking nuts clamped on both sides of the bottom synchronous disc.

[0021] Furthermore, the excitation mechanism is an excitation motor, and an adapter block is fixed on the output end of the excitation motor. The top of the transmission rod is inserted into the adapter block with an interference fit.

[0022] Furthermore, the cushioning material is expanded polystyrene foam.

[0023] Furthermore, a number of bonding grooves are arranged in a ring array on the inner wall of the bottom pipe, and the foaming adhesive is filled in the bonding grooves.

[0024] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0025] This utility model provides an anti-clogging coal discharge device for the outlet of raw coal bunker, which uses a set of excitation transmission structure suspended on the inner and outer walls of the bottom pipe, so that the vibrating part is separated from the main body of the pipe, and the vibration no longer affects the strength and life of the pipe. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an anti-clogging coal discharge device for the outlet of a raw coal bunker provided by this utility model.

[0027] In the diagram: 1. Top pipe; 2. Vibration motor; 3. Adapter block; 4. Transmission rod; 5. Bottom pipe; 6. Support ring; 7. Shock-absorbing rubber ring; 8. Longitudinal shock-absorbing part; 9. Radial shock-absorbing part; 10. Synchronous outer frame; 11. Connecting ear; 12. Bottom synchronous disc; 13. Vibration basket; 14. Connecting ring; 15. Inner connecting rod; 16. Locking nut; 17. Joint groove; 18. Expanding foam. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.

[0029] In the description of the utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of the utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0031] Example 1

[0032] like Figure 1 As shown, the present invention provides an anti-clogging coal discharge device for the outlet of a raw coal bunker, comprising a top pipe 1, a bottom pipe 5, a vibration mechanism, a synchronous outer frame 10, a support ring 6, a transmission rod 4, and a vibration basket 13.

[0033] The top pipe 1 is installed below the outlet of the raw coal bunker, and the vibration mechanism is fixed on the outer wall of the top pipe 1.

[0034] The bottom pipe 5 is fixed below the top pipe 1. The bottom pipe 5 is designed to taper from top to bottom, and the constricted end of the bottom pipe 5 is the coal outlet end.

[0035] The synchronization outer frame 10 is also configured as a structure that gradually shrinks from top to bottom and is coaxially sleeved on the outside of the bottom pipe 5. The support ring 6 is set on the outer side wall of the bottom pipe 5. The top of the synchronization outer frame 10 and the support ring 6 are elastically connected. A first floating gap is provided between the synchronization outer frame 10 and the bottom pipe 5.

[0036] The excitation basket 13 is fixed to the bottom of the synchronization outer frame 10. The top of the excitation basket 13 extends into the bottom pipe 5. A second floating gap is provided between the outer wall of the excitation basket 13 and the inner wall of the bottom pipe 5. The second floating gap is filled with buffer material.

[0037] One end of the transmission rod 4 is fixedly connected to the output end of the excitation mechanism, and the other end of the transmission rod 4 is fixedly connected to the outer wall of the synchronous outer frame 10.

[0038] This invention uses a vibration transmission structure suspended on the inner and outer walls of the bottom pipe 5, which separates the vibrating part from the main body of the pipe, so that the vibration no longer affects the strength and life of the pipe.

[0039] Example 2

[0040] like Figure 1 As shown, this utility model provides an anti-clogging coal discharge device for the outlet of a raw coal bunker, mainly composed of a top pipe 1, a bottom pipe 5, a synchronous outer frame 10, a vibration basket 13, and a vibration mechanism. The vibration mechanism is installed on the upper side wall of the top pipe 1, and the top pipe 1 is connected to the coal inlet section to receive raw coal transported from the raw coal bunker. The bottom pipe 5 is fixed below the top pipe 1 and has a tapered structure, with the constricted end serving as the coal discharge section, allowing the raw coal to flow out smoothly under gravity and vibration. The synchronous outer frame 10 is conical and coaxially sleeved on the outside of the bottom pipe 5. The vibration basket 13 is synchronously fixed to the bottom of the synchronous outer frame 10 and extends into the bottom pipe 5.

[0041] like Figure 1 As shown, the specific connection relationships of each part are as follows:

[0042] Top pipe 1, with a vibration mechanism installed on the upper side wall of top pipe 1, and top pipe 1 connected to the coal inlet section;

[0043] Bottom pipe 5 is fixed below top pipe 1. Bottom pipe 5 has a tapered structure, and the constricted end of bottom pipe 5 is the coal outlet section.

[0044] The outer frame 10 is also tapered and is coaxially sleeved on the outside of the bottom pipe 5. A support ring 6 is provided on the outer wall of the bottom pipe 5. The top of the outer frame 10 is elastically connected to the support ring 6. A first floating gap is provided between the outer frame 10 and the outer wall of the bottom pipe 5.

[0045] The vibration basket 13 is synchronously fixed to the bottom of the synchronous outer frame 10. The top of the vibration basket 13 extends into the bottom pipe 5. A second floating gap is provided between the outer wall of the vibration basket 13 and the inner wall of the bottom pipe 5. The second floating gap is filled with expanding foam 18.

[0046] Among them, a transmission rod 4 is fixed on the output end of the excitation mechanism, and one end of the transmission rod 4 is fixedly connected to the synchronous outer frame 10.

[0047] Through the above structural design, a vibration transmission structure suspended on the inner and outer walls of the bottom pipe 5 is used to separate the vibrating part from the main body of the pipe, so that the vibration no longer affects the strength and life of the pipe.

[0048] A plurality of connecting ear arrays are arranged in a ring on the outer wall of the synchronization frame 10. Each connecting ear array includes a plurality of connecting ears 11 arranged in a straight line along the inclined side wall of the synchronization frame 10. The transmission rod 4 passes through each connecting ear 11 of the same connecting ear array. Through the above structural design, the fixing point with the synchronization frame 10 is improved, the vibration transmission efficiency is improved, and the stability of the synchronization frame 10 during hoisting is also improved.

[0049] The outer frame 10 and the support ring 6 are elastically connected by a shock-absorbing rubber ring 7. The shock-absorbing rubber ring 7 includes a longitudinal shock-absorbing part 8 and a radial shock-absorbing part 9 vertically fixed to the inner ring of the longitudinal shock-absorbing part 8. The longitudinal shock-absorbing part 8 includes an annular hollow shock-absorbing ring located between the support ring 6 and the top of the outer frame 10. The radial shock-absorbing part 9 includes a support ring fixed to the inner ring of the shock-absorbing ring. The inner wall of the support ring is arranged in a linear array of several annular floating rings, located between the inner wall of the outer frame 10 and the outer wall of the bottom pipe 5. Through the above structural design, the following technical effects are achieved: compared with the direct use of a rubber block structure, the combination of the two shock-absorbing structures results in higher floating sensitivity and better shock absorption.

[0050] A bottom synchronization disc 12 is fixed to the bottom of the synchronization outer frame 10 via a flange, and the excitation basket 13 is fixed to the bottom synchronization disc 12. The advantage of this is that the flange structure facilitates the disassembly of the excitation basket 13.

[0051] Several inner connecting rods 15 are arranged in a circular array on the bottom synchronous disk 12, and are internally connected and fixed to the outer wall of the excitation basket 13. The beneficial effect is that the inner connecting rods 15 can improve the connection stability between the excitation basket 13 and the bottom synchronous disk 12. Compared with welding and other methods, the inner connecting rods 15 have a certain degree of elasticity and are not easy to detach due to stress concentration.

[0052] The excitation basket 13 is provided with several connecting rings 14 arranged in a linear array, and the inner connecting rod 15 passes through each connecting ring 14 for fixation. The advantages are: it increases the connection point between the inner connecting rod 15 and the excitation basket 13, and the connecting rings 14 are fixed to the excitation basket 13 by means of a clamp, which is less likely to cause stress concentration and is easier to disassemble than the inner connecting rod 15 being directly welded.

[0053] The inner connecting rod 15 is fixed to the bottom synchronous disc 12 by two sets of locking nuts 16 clamped on both sides of the bottom synchronous disc 12. Its advantage is that the locking nut 16 structure is easy to disassemble.

[0054] The excitation mechanism is an excitation motor 2. A transition block 3 is fixed on the vibration output end of the excitation motor 2. The top of the transmission rod 4 is inserted into the transition block 3 with an interference fit.

[0055] Several bonding grooves 17 are arranged in a ring array on the inner wall of the bottom pipe 5, and expanding foam 18 is filled in the bonding grooves 17. The beneficial effect is to increase the bonding area of ​​expanding foam 18 and reduce the possibility of expanding foam 18 falling off and failing.

[0056] according to Figure 1 The following supplementary explanations are provided regarding the detailed structure and function of each part:

[0057] In this embodiment, the vibration mechanism uses a vibration motor 2. An adapter block 3 is fixed to the vibration output end of the vibration motor 2, and the top of the transmission rod 4 is interference-fitted into the adapter block 3. When the vibration motor 2 starts, the vibration it generates is transmitted to the transmission rod 4 through the adapter block 3. The vibration motor 2 has the advantage of easily adjustable vibration frequency and amplitude, allowing for flexible adjustment of the vibration intensity according to the actual blockage situation to achieve the best unblocking effect.

[0058] The top pipe 1 serves as the inlet channel for raw coal, primarily connecting the coal feeding section and supporting the vibration excitation mechanism. Its structural design must meet sufficient strength and sealing requirements to ensure no leakage occurs during the raw coal receiving process, while also stably supporting the vibration excitation mechanism so that its vibration can be effectively transmitted throughout the entire device.

[0059] The bottom pipe 5 is fixed below the top pipe 1 and adopts a tapered structure. This structural design helps the raw coal flow naturally to the coal outlet section under gravity. At the same time, the bottom pipe 5 is also a key part for vibration transmission. A support ring 6 is provided on the outer wall of the bottom pipe 5 for elastic connection with the synchronous outer frame 10. A second floating gap is provided between its inner wall and the outer wall of the vibration basket 13, and filled with expanding foam 18. The expanding foam 18 serves two purposes: firstly, it acts as a buffer to prevent direct collision between the vibration basket 13 and the inner wall of the bottom pipe 5, thus avoiding damage; secondly, during vibration, the expanding foam 18 can generate a certain elastic restoring force, enhancing the vibration effect on the raw coal.

[0060] The outer frame 10 is a conical structure, coaxially fitted onto the outside of the bottom pipe 5. Its top is elastically connected to the support ring 6 on the outer wall of the bottom pipe 5 via a shock-absorbing rubber ring 7. The unique structural design of the shock-absorbing rubber ring 7, including a longitudinal shock-absorbing part 8 and a radial shock-absorbing part 9, enhances its floating sensitivity and improves its shock absorption effect. The annular hollow shock-absorbing ring of the longitudinal shock-absorbing part 8 is located between the support ring 6 and the top of the outer frame 10, effectively buffering vertical vibrations. The support ring of the radial shock-absorbing part 9 is fixed to the inner ring of the shock-absorbing ring, and several annular floating rings arranged in a linear array on the inner wall of the support ring are located between the inner wall of the outer frame 10 and the outer wall of the bottom pipe 5, absorbing radial vibrations. This elastic connection allows the outer frame 10 to move flexibly relative to the bottom pipe 5 during vibration, ensuring effective vibration transmission while reducing the impact on the bottom pipe 5 and extending its service life.

[0061] A plurality of connecting ear arrays are arranged in a ring on the outer wall of the synchronization frame 10. Each connecting ear array includes a plurality of connecting ears 11 arranged in a straight line along the inclined side wall of the synchronization frame 10. The transmission rod 4 passes through each connecting ear 11 of the same connecting ear array. This design greatly increases the number of fixing points between the transmission rod 4 and the synchronization frame 10, which not only improves the vibration transmission efficiency and enables the vibration generated by the excitation mechanism to be transmitted more evenly to the synchronization frame 10, but also improves its stability during the hoisting of the synchronization frame 10, ensuring the reliability of the device installation and operation.

[0062] The vibration basket 13 is synchronously fixed to the bottom of the synchronous outer frame 10, with its top extending into the bottom pipe 5. A second floating gap is provided between the outer wall of the vibration basket 13 and the inner wall of the bottom pipe 5 and filled with expanding foam 18. The vibration basket 13 is connected to the synchronous outer frame 10 via a bottom synchronous disc 12, which is fixed to the bottom of the synchronous outer frame 10 via a flange. This flange structure makes the vibration basket 13 easy to disassemble, facilitating replacement or repair during later maintenance.

[0063] Several inner connecting rods 15 are arranged in a ring array on the bottom synchronous disc 12, and the inner connecting rods 15 are fixed to the outer wall of the excitation basket 13. To further improve the connection stability, several connecting rings 14 are arranged in a linear array on the excitation basket 13, and the inner connecting rods 15 pass through each connecting ring 14 for fixation. The connecting rings 14 are fixed to the excitation basket 13 by a sleeve clamping method. Compared with the direct welding of the inner connecting rods 15, this method is less likely to cause stress concentration and is easier to disassemble. The inner connecting rods 15 are fixed to the bottom synchronous disc 12 by two sets of locking nuts 16 clamped on both sides of the bottom synchronous disc 12. The locking nut 16 structure also facilitates disassembly when needed. The excitation basket 13 vibrates under the drive of the synchronous outer frame 10. Its part extending into the bottom pipe 5 can directly vibrate the raw coal blocked near the outlet of the bottom pipe 5, causing the raw coal to loosen and flow out smoothly.

[0064] The working process of the anti-clogging coal discharge device for the outlet of raw coal bunker provided in this embodiment is described as follows:

[0065] When a blockage occurs at the outlet of the raw coal bunker, the vibrating motor 2 is activated. The vibration generated by the vibrating motor 2 is transmitted to the transmission rod 4 via the adapter block 3, and the transmission rod 4 transmits the vibration to the synchronous outer frame 10. Since the synchronous outer frame 10 and the bottom pipe 5 are elastically connected by the shock-absorbing rubber ring 7, the vibration can be effectively transmitted to the synchronous outer frame 10 while reducing the direct impact on the bottom pipe 5. Under the action of vibration, the synchronous outer frame 10 drives the vibrating basket 13 to move together, and the vibrating basket 13 vibrates the blocked raw coal inside the bottom pipe 5. The foam 18 filled in the second floating gap can isolate the friction between the vibrating basket 13 and the bottom pipe 5 during vibration, and at the same time prevent coal dust from entering between the vibrating basket 13 and the bottom pipe 5 and causing wear on the bottom pipe 5. Under the combined action of gravity and vibration force, the raw coal blocked at the outlet of the bottom pipe 5 gradually loosens and flows out smoothly from the coal outlet, realizing the unblocking of the raw coal bunker outlet.

[0066] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A clogging prevention coal discharging device for an outlet of a raw coal bunker, characterized by, The device comprises a top pipe, a bottom pipe, a vibration excitation mechanism, a synchronous outer frame, a support ring, a transmission rod and a vibration excitation basket. The top pipe is sleeved below the outlet of the raw coal bunker, and the vibration excitation mechanism is fixed on the outer sidewall of the top pipe. The bottom pipe is fixed below the top pipe, and is provided with a structure tapering from top to bottom. The synchronous outer frame is also provided with a structure tapering from top to bottom and is coaxially sleeved on the outer side of the bottom pipe. The support ring is arranged on the outer sidewall of the bottom pipe, and the top of the synchronous outer frame and the support ring are elastically connected. The vibration excitation basket is fixed on the bottom of the synchronous outer frame, the top of the vibration excitation basket extends into the bottom pipe, and the second floating gap is filled with a buffer material.

2. The anti-blocking coal discharging device for the raw coal bunker outlet according to claim 1, characterized in that, One end of the transmission rod is fixedly connected with the output end of the vibration excitation mechanism, and the other end of the transmission rod is fixedly connected with the outer sidewall of the synchronous outer frame.

3. The anti-blocking coal discharging device for the raw coal bunker outlet according to claim 1, characterized in that, A plurality of connection ear arrays are arranged in a ring array on the outer sidewall of the synchronous outer frame.

4. The anti-blocking coal discharging device for the raw coal bunker outlet according to claim 1, characterized in that, The transmission rod penetrates through each connection ear of the same connection ear array.

5. The anti-blocking coal discharging device for the raw coal bunker outlet according to claim 4, characterized in that, The synchronous outer frame and the support ring are elastically connected through a damping rubber ring.

6. The anti-blocking coal discharging device for raw coal bunker outlet according to claim 5, characterized in that, The damping rubber ring comprises a longitudinal damping part and a radial damping part fixedly arranged on the inner circle of the longitudinal damping part.

7. The anti-blocking coal discharging device for raw coal bunker outlet according to claim 5, characterized in that, The longitudinal damping part comprises a ring-shaped hollow damping ring arranged between the support ring and the top of the synchronous outer frame.

8. The anti-blocking coal discharging device for raw coal bunker outlet according to claim 1, characterized in that, The radial damping part comprises a support ring fixedly arranged on the inner circle of the damping ring.

9. The anti-plugging coal outlet device for raw coal bunker outlet according to claim 1, characterized in that, The inner wall of the support ring is provided with a plurality of ring-shaped floating rings arranged in a straight line array.

10. The anti-blocking coal discharging device for raw coal bunker outlet according to claim 9, characterized in that, The bottom synchronous disc is fixed on the bottom of the synchronous outer frame through the flange, and the vibration excitation basket is fixed on the bottom synchronous disc. A plurality of inner connecting rods are arranged in a ring array on the bottom synchronous disc. A plurality of connecting rings are arranged in a straight line array on the vibration excitation basket. The inner connecting rods are fixed to the outer sidewall of the vibration excitation basket through the connecting rings. The inner connecting rods are fixed to the bottom synchronous disc through the locking nuts clamped on both sides of the bottom synchronous disc. The vibration excitation mechanism is a vibration excitation motor. The top of the transmission rod is inserted into the adapter block in an interference fit. The buffer material is foamed glue. A plurality of combination grooves are arranged in a ring array on the inner wall of the bottom pipe. The foamed glue is filled in the combination grooves.

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