Coal feeding and distributing device for boiler

Abstract

The invention discloses a boiler coal feeding and distributing device which comprises a base, a conveying assembly and a driving assembly, the conveying assembly comprises a rotary table, a support and a conveying belt, the rotary table is installed on the base and can rotate in the horizontal plane, the support is arranged on the rotary table, and the conveying belt is installed on the support and used for bearing coal briquettes; the driving assembly comprises a first driving piece and a second driving piece, the first driving piece is arranged on the base and used for driving the rotary table to rotate in a reciprocating mode, and the second driving piece is arranged on the support and used for driving the conveying belt to move. According to the coal feeding and distributing device of the boiler, reciprocating rotation of the rotary table can be used for driving the conveying belt to swing in the bearing range of the fire grate in a reciprocating mode, so that coal falling points evenly move on the fire grate, it is guaranteed that coal briquettes are evenly thrown, the thickness of a coal layer on the fire grate is more even, and the combustion efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of coal feeding equipment technology, and more specifically, to a boiler coal feeding and distribution device. Background Technology

[0002] A coal-fired boiler is a thermal energy device that uses coal as fuel to convert chemical energy into thermal energy through combustion, thereby heating or generating steam. Its core structure includes the furnace, grate, combustion system, and steam-water system, and it is widely used in power, industrial heating and other fields.

[0003] In related technologies, coal-fired boilers often use fixed conveying structures for their coal feeding devices, which makes it difficult to achieve uniform coal distribution, resulting in uneven coal layer thickness on the grate and affecting combustion efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the defects and deficiencies of the prior art by proposing a boiler coal feeding and distributing device. The base of the boiler coal feeding and distributing device is provided with a rotatable turntable, and a support bracket for the conveyor belt is installed on the turntable. A first driving component can drive the turntable to rotate back and forth, thereby causing the conveyor belt to swing back and forth within the receiving range of the grate, so that the coal drop point moves evenly on the grate, ensuring the uniform distribution of coal blocks, making the coal layer thickness on the grate more uniform, and improving combustion efficiency.

[0005] The boiler coal feeding and placing device of this invention includes: a base; a conveying assembly, the conveying assembly including a turntable, a support, and a conveyor belt, the turntable being mounted on the base and rotatable in a horizontal plane, the support being disposed on the turntable, and the conveyor belt being mounted on the support and used to receive coal blocks; and a driving assembly, the driving assembly including a first driving member and a second driving member, the first driving member being disposed on the base and used to drive the turntable to reciprocate, and the second driving member being disposed on the support and used to drive the conveyor belt to move.

[0006] The boiler coal feeding and distribution device of this invention has a rotatable turntable on the base, and a support bracket for the conveyor belt is installed on the turntable. The first driving component can drive the turntable to rotate back and forth, thereby causing the conveyor belt to swing back and forth within the receiving range of the grate, so that the coal drop point moves evenly on the grate, ensuring that the coal blocks are evenly scattered, making the coal layer thickness on the grate more uniform, and improving the combustion efficiency.

[0007] In some embodiments, the drive assembly further includes a turntable, a sliding frame, and a rack. The base includes a base plate and an annular side plate surrounding the outer periphery of the base plate. A rotatable shaft is provided at the center of the base plate. The turntable is mounted on the top of the shaft. The first drive component is a first drive motor, which is mounted on the base plate with its output shaft vertically aligned and connected to the center of the turntable. The turntable has an upwardly protruding limiting post, which is radially spaced from the output shaft of the first drive motor. The sliding frame is fitted onto the limiting post and extends toward the shaft. The rack is provided at one end of the sliding frame facing the shaft. A gear meshing with the rack is provided on the outer periphery of the shaft. A limiting rod is provided on the inner wall of the annular side plate. The sliding frame is slidably fitted onto the limiting rod and is orthogonal to the limiting rod.

[0008] In some embodiments, the boiler coal feeding device further includes a vibration assembly, which is mounted on the support and includes a third driving member and a striking member. The third driving member is used to drive the striking member to strike the support.

[0009] In some embodiments, the support includes two side plates spaced apart in the width direction of the conveyor belt, the striking element includes a striking plate and a connecting post, the connecting post being connected to the outside of the side plates and perpendicular to the side plates, the striking plate passing through the connecting post and being connected to the side plates by an elastic member, the third driving member intermittently driving the striking plate to move in a direction away from the side plates, and the elastic member having a force pulling the striking plate toward the side plates.

[0010] In some embodiments, the third driving member is a driving rod located on one side of the striking plate. The driving rod is vertically connected to the outside of the side plate and is rotatable relative to the side plate. A spiral track extending around the outer circumference of the driving rod is provided. The striking plate has a transmission column protruding towards the driving rod. The transmission column overlaps the side of the spiral track away from the side plate. Rotation of the driving rod can drive the transmission column to translate away from the side plate.

[0011] In some embodiments, the striking plate has a striking post on its side facing the side plate;

[0012] The elastic element is a spring sleeved on the connecting column.

[0013] In some embodiments, the support further includes a roller shaft rotatably connected between the two side plates, the second drive member driving the roller shaft to rotate, the rotation of the roller shaft driving the conveyor belt to move, and the drive rod connected to the end of the roller shaft.

[0014] In some embodiments, the support is provided with a vertically arranged connecting frame, the upper end of the connecting frame is provided with a hopper, the hopper is provided with a crushing mechanism, and the lower end opening of the hopper is located above the conveyor belt.

[0015] In some embodiments, the second driving member is a second driving motor, which is connected to the outside of the bracket and its output shaft is connected to the roller shaft. The outer periphery of the output shaft of the second driving motor is also provided with a driving wheel, and the outer side of the hopper is provided with a driven wheel. The driven wheel is connected to the rotating shaft of the crushing mechanism, and a belt is wound between the driven wheel and the driving wheel.

[0016] In some embodiments, a horizontal support plate is provided on the outer side surface of the side plate, and the second drive motor is mounted on the horizontal support plate; and / or, the striking plate and the second drive motor are spaced apart at both ends of the bracket. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a boiler coal feeding and distribution device according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the first driving component of the boiler coal feeding and distribution device according to an embodiment of the present invention.

[0019] Figure 3 This is an assembly diagram of the first driving component, the limiting rod, the sliding frame, and the rack of the boiler coal feeding device according to an embodiment of the present invention.

[0020] Figure 4 yes Figure 3 The diagram shows the bottom view of the structure.

[0021] Figure 5 This is a schematic diagram of the conveying component of a boiler coal feeding and distribution device according to an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of the vibration component of the boiler coal feeding and distribution device according to an embodiment of the present invention.

[0023] Figure 7 This is an isometric view of the vibration component of the boiler coal feeding and placing device according to an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of the structure of the hopper and crushing mechanism of the boiler coal feeding device according to an embodiment of the present invention.

[0025] Figure 9 This is a schematic diagram of the internal structure of the crushing mechanism of the boiler coal feeding and distributing device according to an embodiment of the present invention.

[0026] Figure 10 This is an assembly diagram of the conveyor belt, rollers, and second drive component of the boiler coal feeding and distributing device according to an embodiment of the present invention.

[0027] Figure label:

[0028] Base 1, drive assembly 2, gear 21, rack 22, rotating shaft 23, limiting rod 24, turntable 25, sliding frame 26, first drive component 27, limiting post 28, conveying assembly 3, second drive component 31, horizontal support plate 32, hopper 33, connecting frame 34, conveyor belt 35, first roller 36, dustproof shell 37, second roller 38, crushing mechanism 39, guide plate 311, rotating shaft 312, drive wheel 314, belt 315, driven wheel 316, bracket 317, vibration assembly 4, drive rod 41, striking plate 42, striking post 43, elastic element 44, connecting post 45, transmission post 46, spiral track 47, turntable 5. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] like Figures 1-10 As shown, the boiler coal feeding and placing device of this embodiment includes a base 1, a conveying component 3, and a driving component 2.

[0031] Specifically, such as Figure 1 As shown, the conveying assembly 3 includes a turntable 5, a support 317, and a conveyor belt 35. The turntable 5 is mounted on the base 1 and can rotate in the horizontal plane. The support 317 is located on the turntable 5. The conveyor belt 35 is mounted on the support 317 and is used to receive coal blocks. The driving assembly 2 includes a first driving member 272 and a second driving member 31. The first driving member 272 is located on the base 1 and is used to drive the turntable 5 to reciprocate. The second driving member 31 is located on the support 317 and is used to drive the conveyor belt 35 to move.

[0032] Understandably, the conveyor belt 35 is used to receive the crushed coal pieces output by the crushing device and then transport them to the grate for scattering. Traditionally, the position of the conveyor belt 35 is fixed, and correspondingly, the coal drop point on the grate is fixed. As a result, a thick coal layer will accumulate at the coal drop point, while the coal layer at the edge area will be thinner, resulting in an uneven distribution of the overall coal layer and low combustion efficiency. However, this application provides a rotatable turntable 5 on the base 1, and the bracket 317 for installing the conveyor belt 35 is set on the turntable 5. The first driving component 272 drives the turntable 5 to rotate back and forth, which can drive the conveyor belt 35 to swing back and forth in the horizontal direction, thereby making the coal drop point move evenly on the grate, ensuring the even scattering of coal pieces, and making the coal layer thickness relatively uniform, so as to improve the combustion efficiency.

[0033] In the boiler coal feeding and distribution device of this invention, a rotatable turntable 5 is provided on the base 1, and a bracket 317 supporting the conveyor belt 35 is installed on the turntable 5. The first driving member 272 can drive the turntable 5 to rotate back and forth, thereby driving the conveyor belt 35 to swing back and forth within the receiving range of the grate, so that the coal drop point moves evenly on the grate, ensuring that the coal blocks are evenly scattered, making the coal layer thickness on the grate more uniform, and improving the combustion efficiency.

[0034] In some embodiments, such as Figures 2-4 As shown, the drive assembly 2 also includes a turntable 25, a sliding frame 26, and a rack 22. The base 1 includes a base plate and an annular side plate surrounding the base plate. A rotatable shaft 23 is provided at the center of the base plate. The turntable 5 is installed on the top of the shaft 23. The first drive component 272 is a first drive motor. The first drive motor is located on the base plate and its output shaft is vertically arranged and connected to the center of the turntable 25. The turntable 25 is provided with an upwardly protruding limiting post 28. The limiting post 28 and the output shaft of the first drive motor are spaced apart radially from each other on the turntable 25. The sliding frame 26 is sleeved on the limiting post 28 and extends toward the shaft 23. A rack 22 is provided at one end of the sliding frame 26 facing the shaft 23. A gear 21 that meshes with the rack 22 is provided on the outer periphery of the shaft 23. A limiting rod 24 is provided on the inner wall of the annular side plate. The sliding frame 26 is slidably sleeved on the limiting rod 24 and is orthogonal to the limiting rod 24.

[0035] Specifically, the rotation of the first drive motor can drive the turntable 25 to rotate, and the rotation of the turntable 25 can drive the limiting post 28 to move circumferentially. Since the sliding frame 26 is sleeved on the limiting post 28, and the sliding frame 26 is also slidably sleeved on the limiting rod 24 and orthogonal to the limiting rod 24, the circumferential movement of the limiting post 28 can drive the sliding frame 26 to move horizontally along the limiting rod 24 due to the presence of the limiting rod 24. Correspondingly, the rack 22 connected to the end of the sliding frame 26 will also move horizontally. At this time, the rotating shaft 23 meshing with the rack 22 will rotate with the movement of the rack 22, and finally drive the turntable 5 to rotate.

[0036] like Figure 2As shown, for each rotation of the turntable 25, the limiting post 28 completes a full circular motion. When the limiting post 28 moves a quarter circle from the starting point, it can push the sliding frame 26 to move to one side. Then, as the limiting post 28 continues to move to the half circle position, it can push the sliding frame 26 back to the initial position. Then, when the limiting post 28 continues to move to the three-quarter circle position, it can push the sliding frame 26 to move from the initial position to the other side. Finally, when the limiting post 28 continues to move to complete the entire motion cycle, it can push the sliding frame 26 back to the initial position. That is, one rotation of the turntable 25 will drive the sliding frame 26 to perform a complete reciprocating translation, which in turn can drive the rotating shaft 23 to reciprocate, so as to ultimately realize the reciprocating rotation of the turntable 5.

[0037] In some embodiments, such as Figure 1 As shown, the boiler coal feeding and placing device also includes a vibration component 4, which is mounted on the support 317 and includes a third driving component and a striking component. The third driving component is used to drive the striking component to strike the support 317.

[0038] It should be noted that during the conveying process, coal dust is easily attached to the surface of the conveyor belt 35, which not only reduces the conveying efficiency but may also cause blockage, further affecting the stability of boiler operation. This application solves the blockage problem caused by coal dust attachment by setting up a vibration component 4, which can use the striking component to strike the support 317 to induce vibration.

[0039] Furthermore, such as Figures 5-7 As shown, the support 317 includes two side plates spaced apart in the width direction of the conveyor belt 35. The striking element includes a striking plate 42 and a connecting post 45. The connecting post 45 is connected to the outside of the side plate and perpendicular to the side plate. The striking plate 42 passes through the connecting post 45 and is connected to the side plate by an elastic member 44. A third driving member intermittently drives the striking plate 42 to move away from the side plate. The elastic member 44 has a force that pulls the striking plate 42 towards the side plate. It can be understood that when the third driving member drives the striking plate 42 away from the side plate, the elastic member 44 will store energy with the movement of the striking plate 42. When the third driving member no longer applies force to the striking plate 42, the elastic member 44 can rebound and drive the striking plate 42 to move towards the side plate and strike the side plate, causing the support 317 to vibrate. In addition, the connecting post 45 can limit the movement of the striking plate 42, ensuring that the striking plate 42 is always facing the side plate, thereby ensuring the reliability of the striking action.

[0040] In some embodiments, such as Figure 6 and Figure 7As shown, the third driving component is a driving rod 41 located on one side of the striking plate 42. The driving rod 41 is vertically connected to the outer side of the side plate and can rotate relative to the side plate. A spiral track 47 extending circumferentially around the outer periphery of the driving rod 41 is provided. The striking plate 42 has a transmission column 46 protruding towards the driving rod 41. The transmission column 46 overlaps the side of the spiral track 47 away from the side plate. Rotation of the driving rod 41 can drive the transmission column 46 to translate in a direction away from the side plate. Figure 6 and Figure 7 As shown, with the end of the spiral track 47 furthest from the side plate as the head and the other end as the tail, the transmission column 46 overlaps at the tail position. At this time, when the drive rod 41 is rotated counterclockwise, the spiral track 47 will gradually lift the transmission column 46 outward, that is, the transmission column 46 moves outward relative to the side plate, thereby driving the striking plate 42 to move outward until the head position of the spiral track 47 is opposite to the transmission column 46, the movement of the striking plate 42 reaches its maximum stroke. As the drive rod 41 continues to rotate, the transmission column 46 will slide off the head, that is, at this time the transmission column 46 is completely disengaged from the bolt track. The elastic element 44 will pull the striking plate 42 to move quickly toward the side plate and strike the side plate to generate vibration on the bracket 317. After disengaging from the spiral track 47, the transmission column 46 will move with the striking plate 42 and finally overlap the tail of the bolt track again to prepare for the next striking motion.

[0041] Optionally, the third driving member is not limited to the driving rod 41 in the above embodiment. For example, the third driving member can also be a motor equipped with a periodic start and stop switch, which periodically lifts the striking plate 42. That is, as long as the periodic translation of the striking plate 42 can be satisfied, there is no limitation here.

[0042] Preferably, the striking plate 42 has striking posts 43 on its side facing the side plate. Preferably, there are multiple striking posts 43 arranged at intervals.

[0043] Preferably, the elastic element 44 is a spring sleeved on the connecting post 45. Thus, the connecting post 45 can provide limiting and support for the spring, ensuring the reliability of the spring's reciprocating extension and retraction.

[0044] In some embodiments, such as Figure 5 As shown, the bracket 317 also includes a roller shaft, which is rotatably connected between the two side plates. A second drive member 31 is used to drive the roller shaft to rotate, and the rotation of the roller shaft can drive the conveyor belt 35 to move. A drive rod 41 is connected to the end of the roller shaft. That is to say, while the second drive member 31 drives the roller shaft to rotate to provide power to the conveyor belt 35, the roller shaft can also drive the drive rod 41 to rotate to provide power to the vibration assembly 4. That is, the vibration assembly 4 and the conveyor belt 35 use the same power source, eliminating the need to equip the vibration assembly 4 with a separate drive motor, reducing the number of structural components and lowering costs.

[0045] Furthermore, the roller includes a first roller 36 and a second roller 38 arranged at intervals along the length of the support 317. The first roller 36 and the second roller 38 are located at the two ends of the support 317, respectively. A first drive motor is connected to the second roller 38, and a drive rod 41 is connected to the first roller 36.

[0046] In some embodiments, such as Figure 5 , Figure 8 and Figure 9 As shown, the support frame 317 is equipped with a vertically arranged connecting frame 34. The upper end of the connecting frame 34 is equipped with a hopper 33, and the hopper 33 contains a crushing mechanism 39. The lower opening of the hopper 33 is located above the conveyor belt 35. Thus, the crushing mechanism 39 and the material head are integrated on the support frame 317, eliminating the need for an additional crushing device and reducing the complexity and cost of the system.

[0047] Furthermore, such as Figure 8 As shown, a dust cover 37 is installed on the side of the hopper 33. The dust cover 37 is a square shell, which serves to prevent dust from entering the crushing mechanism 39 and affecting the transmission.

[0048] Furthermore, a guide plate 311 is fixed at the bottom of the hopper 33. The guide plate 311 is used to guide the coal blocks from the hopper 33 onto the conveyor belt 35.

[0049] In some embodiments, such as Figure 5 As shown, the second driving component 31 is a second driving motor. The second driving motor is connected to the outside of the bracket 317, and its output shaft is connected to the roller shaft. A driving wheel 314 is also provided on the outer periphery of the output shaft of the second driving motor, and a driven wheel 316 is provided on the outer side of the hopper 33. The driven wheel 316 is connected to the rotating shaft 312 of the crushing mechanism 39, and a belt 315 is wound between the driven wheel 316 and the driving wheel 314. Thus, while the second driving motor drives the roller shaft to move the conveyor belt 35, the crushing mechanism 39 can be driven to run through the transmission system composed of the driving wheel 314, the driven wheel 316, and the belt 315, realizing dual-purpose operation and reducing equipment complexity and cost.

[0050] In some embodiments, such as Figure 1 As shown, a horizontal support plate 32 is provided on the outer side of the side plate, and the second drive motor is mounted on the horizontal support plate 32. Therefore, compared with directly connecting the second drive motor to the side plate, the horizontal support plate 32 can provide more stable support for the second drive motor.

[0051] Preferably, the striking plate 42 and the second drive motor are spaced apart at both ends of the bracket 317. It is understood that the drive motor itself will generate a certain amount of vibration when it runs. By arranging the second drive motor and the striking plate 42 at both ends of the bracket 317, the two vibration sources can be separated, ensuring that each position of the bracket 317 can receive sufficient vibration energy, thereby improving the anti-clogging effect.

[0052] In some embodiments, the conveyor belt 35 is provided with a plurality of baffles spaced apart along its length to facilitate the transport of coal blocks, and the conveyor belt 35 is provided with side guards on both sides in the width direction to prevent coal blocks from slipping off the sides of the conveyor belt 35.

[0053] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 this invention.

[0054] Furthermore, the terms "first" and "second" 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A boiler coal feeding and distribution device, characterized in that, include: Base; A conveying assembly, comprising a turntable, a support, and a conveyor belt, wherein the turntable is mounted on the base and is rotatable in a horizontal plane, the support is disposed on the turntable, and the conveyor belt is mounted on the support and is used to receive coal blocks; The drive assembly includes a first drive member and a second drive member. The first drive member is disposed on the base and is used to drive the turntable to reciprocate. The second drive member is disposed on the bracket and is used to drive the conveyor belt to move.

2. The boiler coal feeding and distribution device according to claim 1, characterized in that, The drive assembly further includes a turntable, a sliding frame, and a rack. The base includes a base plate and an annular side plate surrounding the outer periphery of the base plate. A rotatable shaft is provided at the center of the base plate. The turntable is mounted on the top of the shaft. The first drive component is a first drive motor, which is mounted on the base plate with its output shaft vertically positioned and connected to the center of the turntable. The turntable has an upwardly protruding limiting post, which is radially spaced from the output shaft of the first drive motor. The sliding frame is fitted onto the limiting post and extends toward the shaft. The end of the sliding frame facing the shaft has the rack. A gear meshing with the rack is provided on the outer periphery of the shaft. A limiting rod is provided on the inner wall of the annular side plate. The sliding frame is slidably fitted onto the limiting rod and is orthogonal to the limiting rod.

3. The boiler coal feeding and distribution device according to claim 1, characterized in that, It also includes a vibration assembly, which is disposed on the bracket and includes a third driving member and a striking member, wherein the third driving member is used to drive the striking member to strike the bracket.

4. The boiler coal feeding and distribution device according to claim 3, characterized in that, The support includes two side plates spaced apart in the width direction of the conveyor belt. The striking element includes a striking plate and a connecting post. The connecting post is connected to the outside of the side plate and perpendicular to the side plate. The striking plate passes through the connecting post and is connected to the side plate by an elastic member. The third driving member intermittently drives the striking plate to move away from the side plate. The elastic member has a force that pulls the striking plate toward the side plate.

5. The boiler coal feeding and distribution device according to claim 4, characterized in that, The third driving component is a driving rod located on one side of the striking plate. The driving rod is vertically connected to the outside of the side plate and is rotatable relative to the side plate. A spiral track extending around the outer circumference of the driving rod is provided. The striking plate has a transmission column protruding towards the driving rod. The transmission column is attached to the side of the spiral track away from the side plate. Rotation of the driving rod can drive the transmission column to translate away from the side plate.

6. The boiler coal feeding and distribution device according to claim 4, characterized in that, The striking plate has a striking post on its side facing the side plate; The elastic element is a spring sleeved on the connecting column.

7. The boiler coal feeding and distribution device according to claim 5, characterized in that, The support also includes a roller shaft rotatably connected between the two side plates. The second driving member is used to drive the roller shaft to rotate, and the rotation of the roller shaft can drive the conveyor belt to move. The driving rod is connected to the end of the roller shaft.

8. The boiler coal feeding and distribution device according to claim 7, characterized in that, The support frame is equipped with a vertically arranged connecting frame, the upper end of the connecting frame is equipped with a hopper, the hopper is equipped with a crushing mechanism, and the lower end opening of the hopper is located above the conveyor belt.

9. The boiler coal feeding and distribution device according to claim 8, characterized in that, The second driving component is a second driving motor. The second driving motor is connected to the outside of the bracket and its output shaft is connected to the roller shaft. The outer periphery of the output shaft of the second driving motor is also provided with a driving wheel. The outer side of the hopper is provided with a driven wheel. The driven wheel is connected to the rotating shaft of the crushing mechanism. A belt is wound between the driven wheel and the driving wheel.

10. The boiler coal feeding and distribution device according to claim 9, characterized in that, A horizontal support plate is provided on the outer side surface of the side plate, and the second drive motor is mounted on the horizontal support plate. And / or, the striking plate and the second drive motor are spaced apart at both ends of the bracket.

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