Coal feeder feeding and conveying device for thermal power plant

Abstract

The application discloses a coal feeder feeding and conveying device for a thermal power plant, which comprises a shell assembly, a conveying assembly is mounted on the inner wall of the shell assembly, a dust removal assembly is mounted on the outer wall of the shell assembly, a mounting assembly is mounted on the inner wall of the shell assembly, and a driving assembly is mounted on the side wall of the shell assembly. The dust removal assembly is used for absorbing dust in the shell assembly, the driving assembly is used for driving the mounting assembly to move, and the conveying assembly is used for conveying coal. In the application, two fans at the top and the bottom of the mounting box import and export air to the inside of the mounting box, so that the coal dust in the inside of the mounting box can be controlled in the inside of the box body. The dust collector sucks air outward through two air suction pipes, negative pressure is generated in the middle of the mounting box, air flow at both ends of the mounting box is gathered to the middle, and the air flow is discharged by the dust collector, so that the coal dust in the inside of the mounting box can be effectively prevented from spreading to the outside of the box body.

Description

Technical Field

[0001] This invention relates to the field of conveying device technology, and in particular to a coal feeder conveying device for a thermal power plant. Background Technology

[0002] The feeding and conveying device is located between the raw coal hopper and the coal mill. In the direct-fired pulverizing system, the coal feed rate is directly adapted to the boiler load. There are various types of coal feeders, which can be classified into volumetric and gravity types according to their structural characteristics and working principles. The coal is transported from the coal yard to the coal hopper by a coal conveyor belt, and then conveyed to the coal mill by the coal feeder. The coal is then ground into pulverized coal by the coal mill to improve combustion efficiency.

[0003] During the process of transporting coal through a coal feeder, the vibration generated by the coal feeder during operation causes coal dust to float in the air, polluting the power plant environment and even affecting the external environment, as well as the health of workers. In view of this, we propose a coal feeder feeding and conveying device for thermal power plants. Summary of the Invention

[0004] The technical problem to be solved by this invention is that during the process of coal being transported by the coal feeder, the vibration generated by the coal feeder during operation causes coal dust to float in the air, polluting the power plant environment and even affecting the external environment, and also affecting the health of the workers.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a coal feeder and conveying device for a thermal power plant, comprising a shell assembly, a conveying assembly installed on the inner wall of the shell assembly, a dust removal assembly installed on the outer wall of the shell assembly, an installation assembly installed on the inner wall of the shell assembly, and a driving assembly installed on the side wall of the shell assembly. The dust removal assembly is used to absorb dust inside the shell assembly, the driving assembly is used to drive the installation assembly to move, and the conveying assembly is used to convey coal.

[0006] As a preferred embodiment of the coal feeder and conveying device for thermal power plants according to the present invention, the outer shell assembly includes two support plates. Two support plates are symmetrically connected to one side of the two support plates. An installation box is fixedly connected to the top of the two support plates. Installation holes are provided at the top and bottom of the installation box. Installation shells are fixedly connected to the top and bottom of the installation box. Air holes are provided on the opposite sides of the two installation shells. A first oblique hole is symmetrically provided at the top of the installation box. Two second oblique holes are symmetrically provided at the bottom of the installation box. A base is fixedly connected to one side of the installation box. Two fixing holes are symmetrically provided on the inner wall of the installation box. A through hole is provided on the other side of the installation box.

[0007] As a preferred embodiment of the coal feeder and conveying device for thermal power plants according to the present invention, the driving component includes a mounting plate, the side wall of the mounting plate is connected and fixed to the mounting box, a sliding groove is provided on the top of the mounting plate, a connecting arm is slidably connected to the inner wall of the sliding groove, a fixing plate is fixedly connected to the end of the connecting arm, a first motor is fixedly connected to the top of the mounting plate, and a threaded rod is fixedly connected to the output end of the first motor.

[0008] As a preferred embodiment of the coal feeder and conveying device for thermal power plants according to the present invention, the mounting assembly includes a partition plate, which is connected and fixed to a fixed plate. The inner wall of the partition plate through hole is slidably connected, and the outer wall of the partition plate has a sliding hole. The outer wall of the partition plate has two shaft holes in a symmetrical structure, and the sliding hole is located between the two shaft holes. The outer wall of the partition plate has two support feet in a symmetrical structure, and the ends of the two support feet are rotatably connected to a rotating shaft. Rollers are fixedly connected to both ends of the two rotating shafts, and the rollers are in rolling contact with the top of the mounting plate.

[0009] In a preferred embodiment of the coal feeder and conveying device for thermal power plants according to the present invention, the conveying assembly includes two connecting shafts. Connecting sleeves are fixedly connected to the outer walls of both ends of the two connecting shafts. The two connecting sleeves near the outer sides are rotatably connected to shaft holes, and the two connecting sleeves near the inner sides are slidably connected to fixed holes. Conveying rollers are fitted onto the outer walls of both connecting shafts. Two connecting discs are fitted onto the circumferential outer walls of both connecting shafts. The inner walls of the two connecting discs are fixedly connected to the connecting sleeves. Multiple connecting plates are fixedly connected to the inner walls of both conveying rollers in an annular, equally spaced structure. The ends of the multiple connecting plates are fixedly connected to the outer walls of the two connecting discs.

[0010] As a preferred embodiment of the coal feeder and conveying device for thermal power plants according to the present invention, the conveying assembly further includes a second motor, the output end of the second motor is fixedly connected to a clamping rod, the clamping rod extends into the mounting box, and one of the connecting shafts has a groove at its end, the clamping rod engaging with the inner wall of the groove.

[0011] As a preferred embodiment of the coal feeder and conveying device for thermal power plants described in this invention, the outer walls of the two conveying rollers are fitted with conveyor belts, and the outer walls of the conveyor belts are provided with grooves, which are concave from both sides toward the center to form an arc-shaped structure.

[0012] As a preferred embodiment of the coal feeder and conveying device for thermal power plants described in this invention, the dust removal component includes two sets of blowing devices, which are respectively installed at the top and bottom of the mounting box. Each set of blowing devices includes two fans, which are respectively installed at both ends of the mounting box. The two fans located at the top are respectively connected and fixed to the outside of two first inclined holes, and the two fans located at the bottom are respectively connected and fixed to the outside of two second inclined holes.

[0013] As a preferred embodiment of the coal feeder and conveying device for thermal power plants described in this invention, the dust removal component further includes a dust collector, two mounting brackets are fixedly connected to the outer circumference of the dust collector, two suction pipes are fixedly connected to the air inlet end of the dust collector, and an exhaust pipe is fixedly connected to the exhaust end of the dust collector. The ends of the two mounting brackets are respectively connected and fixed to the outer wall of the mounting box, and the ends of the two suction pipes are respectively connected and fixed to the inner wall of the air hole.

[0014] The beneficial effects of this invention are as follows: Two fans at the top and bottom of the mounting box draw air in and out, controlling the coal dust inside the box. A vacuum cleaner, through two suction pipes, draws air outwards, creating negative pressure in the middle section of the mounting box. This causes the airflow from both ends of the mounting box to converge towards the center and be discharged by the vacuum cleaner, effectively preventing the coal dust inside the mounting box from spreading outwards. The groove in the middle of the conveyor belt helps to accumulate coal, reducing the exposed area and minimizing coal dust generated during transport. A first motor drives a threaded rod to rotate, which in turn causes a connecting arm to slide along the inner wall of the chute. The connecting arm moves a fixed plate, which in turn moves a partition plate. The partition plate then moves two connecting shafts, with the ends of the two shafts exiting from their shaft holes, and one shaft exiting from the clamp. At this point, the partition plate can remove the conveyor belt from inside the mounting box. As the partition plate moves, rollers at the bottom of its two outer support feet roll along the top of the mounting plate, ensuring more stable movement of the partition plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of the housing assembly of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure of the housing assembly of the present invention. Figure 4 This is a schematic diagram of the structure of the driving component of the present invention.

[0018] Figure 5 This is a schematic diagram of the installation component of the present invention.

[0019] Figure 6 This is a schematic diagram of the structure of the conveying component of the present invention.

[0020] Figure 7 This is a schematic diagram of the installation structure of the conveyor roller of the present invention.

[0021] Figure 8 This is a schematic diagram of the internal structure of the conveyor roller of the present invention.

[0022] Figure 9 This is a schematic diagram of the mounting structure of the clamp rod of the present invention.

[0023] Figure 10 This is a schematic diagram of the internal structure of the connecting shaft of the present invention.

[0024] Figure 11 This is a schematic diagram of the dust removal component of the present invention.

[0025] In the diagram: 1. Outer shell assembly; 101. Support plate; 102. Tray; 103. Mounting box; 104. Mounting hole; 105. Mounting shell; 106. Vent hole; 107. First oblique hole; 108. Fixing hole; 109. Second oblique hole; 110. Base; 111. Through hole; 2. Drive assembly; 201. Mounting plate; 202. Slide groove; 203. First motor; 204. Threaded rod; 205. Connecting arm; 206. Fixing plate; 3. Mounting assembly; 301. Partition plate; 3 02. Sliding hole; 303. Shaft hole; 304. Support foot; 305. Rotating shaft; 306. Roller; 4. Conveying assembly; 401. Second motor; 402. Connecting shaft; 403. Connecting sleeve; 404. Connecting disc; 405. Connecting plate; 406. Conveying roller; 407. Locking rod; 408. Locking groove; 409. Conveying belt; 410. Groove; 5. Dust removal assembly; 501. Fan; 502. Vacuum cleaner; 503. Exhaust pipe; 504. Mounting bracket; 505. Suction pipe. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Currently, during the process of transporting coal through a coal feeder, the vibration generated by the feeder during operation causes coal dust to float in the air, polluting the power plant environment and even affecting the external environment, as well as impacting the health of workers.

[0028] To address the aforementioned problems, this application provides a coal feeder and conveying device for thermal power plants. The following provides a detailed description of each device. It should be noted that the order of description in the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis, and for any part not detailed in a particular embodiment, please refer to the relevant descriptions in other embodiments.

[0029] Example 1: Please refer to Figure 1 A coal feeder and conveying device for a thermal power plant includes a housing assembly 1, a conveying assembly 4 installed on the inner wall of the housing assembly 1, a dust removal assembly 5 installed on the outer wall of the housing assembly 1, an installation assembly 3 installed on the inner wall of the housing assembly 1, and a drive assembly 2 installed on the side wall of the housing assembly 1. The dust removal assembly 5 is used to absorb dust inside the housing assembly 1, the drive assembly 2 is used to drive the installation assembly 3 to move, and the conveying assembly 4 is used to convey coal.

[0030] Example 2: Please refer to Figure 2 and Figure 3 This embodiment is based on the previous embodiment, but differs from the previous embodiment in that: the outer shell assembly 1 includes two support plates 101, and two trays 102 are fixedly connected to the relatively close side of the two support plates 101 in a symmetrical structure. A mounting box 103 is fixedly connected to the top of the two trays 102. Mounting holes 104 are provided at the top and bottom of the mounting box 103. Mounting shells 105 are fixedly connected to the top and bottom of the mounting box 103. Air holes 106 are provided on the relatively far side of the two mounting shells 105. A first oblique hole 107 is provided at the top of the mounting box 103 in a symmetrical structure. Two second oblique holes 109 are provided at the bottom of the mounting box 103 in a symmetrical structure. A base 110 is fixedly connected to one side of the mounting box 103. Two fixing holes 108 are provided on the inner wall of the mounting box 103 in a symmetrical structure. A through hole 111 is provided on the other side of the mounting box 103.

[0031] Example 3: Please refer to Figure 4 This embodiment is based on the previous embodiment, but differs from the previous embodiment in that: the drive assembly 2 includes a mounting plate 201, the side wall of the mounting plate 201 is connected and fixed to the mounting box 103, a sliding groove 202 is provided on the top of the mounting plate 201, a connecting arm 205 is slidably connected to the inner wall of the sliding groove 202, a fixing plate 206 is fixedly connected to the end of the connecting arm 205, a first motor 203 is fixedly connected to the top of the mounting plate 201, and a threaded rod 204 is fixedly connected to the output end of the first motor 203; The first motor 203 drives the threaded rod 204 to rotate, and the rotation of the threaded rod 204 drives the connecting arm 205 to slide along the inner wall of the slide groove 202. The connecting arm 205 drives the fixed plate 206 to move, and the fixed plate 206 drives the partition 301 to move. The partition 301 can drive the two connecting shafts 402 to move. The ends of the two connecting shafts 402 are respectively moved out of the shaft hole 303. One of the connecting shafts 402 is moved out of the clamping rod 407. At this time, the partition 301 can move the conveyor belt 409 out of the mounting box 103.

[0032] Example 4: Please refer to Figure 5 This embodiment is based on the previous embodiment, but differs from the previous embodiment in that: the mounting component 3 includes a partition 301, which is connected and fixed to the fixing plate 206. The inner wall of the through hole 111 of the partition 301 is slidably connected, and the outer wall of the partition 301 is provided with a sliding hole 302. The outer wall of the partition 301 has two shaft holes 303 in a symmetrical structure, and the sliding hole 302 is located between the two shaft holes 303. The outer wall of the partition 301 has two support feet 304 fixedly connected in a symmetrical structure. The ends of the two support feet 304 are rotatably connected to a rotating shaft 305, and the two ends of the two rotating shafts 305 are fixedly connected to rollers 306. The rollers 306 are in rolling contact with the top of the mounting plate 201.

[0033] When the partition 301 moves, the rollers 306 at the bottom of the two outer support feet 304 roll along the top of the mounting plate 201, thereby making the movement of the partition 301 more stable.

[0034] Example 5: Please refer to Figures 6-10This embodiment is based on the previous embodiment, but differs in that: the conveying assembly 4 includes two connecting shafts 402, and connecting sleeves 403 are fixedly connected to the outer walls of both ends of the two connecting shafts 402. The two connecting sleeves 403 near the outer side are rotatably connected to the shaft hole 303, and the two connecting sleeves 403 near the inner side are slidably connected to the fixing hole 108. Conveying rollers 406 are sleeved on the outer walls of the two connecting shafts 402, and two connecting discs 404 are sleeved on the outer circumference of the two connecting shafts 402. The inner walls of the two connecting discs 404 are fixedly connected to the connecting sleeves 403, and the inner walls of the two conveying rollers 406 are... Each component is fixedly connected with multiple connecting plates 405 in a ring-shaped, equally spaced structure. The ends of the multiple connecting plates 405 are respectively connected and fixed to the outer walls of two connecting discs 404. The conveying component 4 also includes a second motor 401. The output end of the second motor 401 is fixedly connected to a clamping rod 407, which extends into the mounting box 103. One of the connecting shafts 402 has a groove 408 at its end. The clamping rod 407 engages with the inner wall of the groove 408. The outer walls of the two conveying rollers 406 are fitted with conveyor belts 409. The outer walls of the conveyor belts 409 have grooves 410, which are concave from both sides toward the center to form an arc-shaped structure. The second motor 401 drives the end clamp 407 to rotate. The clamp 407 engages with the groove 408 inside one of the connecting shafts 402. The clamp 407 drives the connecting shaft 402 to rotate, which in turn drives the connecting sleeve 403 to rotate. The connecting sleeve 403 drives one of the conveying rollers 406 to rotate through the connecting disc 404 and the connecting plate 405, thereby driving the conveyor belt 409 to rotate. The conveyor belt 409 can transport coal. The groove 410 in the middle of the conveyor belt 409 piles the coal together, reducing the exposed area of ​​the coal and reducing the coal dust generated during coal transportation.

[0035] Example 6: Please refer to Figure 11 This embodiment is based on the previous embodiment, but differs from the previous embodiment in that: the dust removal component 5 includes two sets of blowing devices, which are respectively set at the top and bottom of the mounting box 103. Each set of blowing devices includes two fans 501, which are respectively set at both ends of the mounting box 103. The two fans 501 located at the top are respectively connected and fixed to the outside of the two first inclined holes 107, and the two fans 501 located at the bottom are respectively connected and fixed to the outside of the two second inclined holes 109. The dust removal component 5 also includes a vacuum cleaner 502. Two mounting brackets 504 are fixedly connected to the outer circumference of the vacuum cleaner 502. Two suction pipes 505 are fixedly connected to the air inlet end of the vacuum cleaner 502, and an exhaust pipe 503 is fixedly connected to the exhaust end of the vacuum cleaner 502. The ends of the two mounting brackets 504 are respectively connected and fixed to the outer wall of the mounting box 103, and the ends of the two suction pipes 505 are respectively connected and fixed to the inner wall of the air hole 106. By using two fans 501 at the top and bottom of the mounting box 103 to draw air in and out of the box, the coal dust inside the mounting box 103 can be controlled inside the box. The vacuum cleaner 502 draws air out through two suction pipes 505, which can create negative pressure in the middle section of the mounting box 103, causing the airflow at both ends of the mounting box 103 to gather in the middle and be discharged by the vacuum cleaner 502, thereby effectively preventing the coal dust inside the mounting box 103 from spreading to the outside of the box.

[0036] Working principle: The second motor 401 drives the end of the clamping rod 407 to rotate. The clamping rod 407 engages with the groove 408 inside one of the connecting shafts 402. The clamping rod 407 drives the connecting shaft 402 to rotate, which in turn drives the connecting sleeve 403 to rotate. The connecting sleeve 403 drives one of the conveying rollers 406 to rotate through the connecting disc 404 and the connecting plate 405, which in turn drives the conveyor belt 409 to rotate. The conveyor belt 409 can transport coal. The groove 410 in the middle of the conveyor belt 409 piles the coal together, reducing the exposed area of ​​the coal and reducing the coal dust generated during coal transportation. By using two fans 501 at the top and bottom of the mounting box 103 to draw air into and out of the box, the coal dust inside the mounting box 103 can be controlled inside the box. The vacuum cleaner 502 draws air out through two suction pipes 505, which can create negative pressure in the middle section of the mounting box 103, causing the airflow at both ends of the mounting box 103 to gather in the middle and be discharged by the vacuum cleaner 502, thereby effectively preventing the coal dust inside the mounting box 103 from spreading to the outside of the box. The first motor 203 drives the threaded rod 204 to rotate, and the rotation of the threaded rod 204 drives the connecting arm 205 to slide along the inner wall of the slide groove 202. The connecting arm 205 drives the fixed plate 206 to move, and the fixed plate 206 drives the partition 301 to move. The partition 301 can drive the two connecting shafts 402 to move. The ends of the two connecting shafts 402 are respectively moved out of the shaft hole 303. One of the connecting shafts 402 is moved out of the clamp 407. At this time, the partition 301 can move the conveyor belt 409 out of the mounting box 103. When the partition 301 moves, the rollers 306 at the bottom of the two outer support feet 304 roll along the top of the mounting plate 201, thereby making the movement of the partition 301 more stable.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coal feeder and conveying device for a thermal power plant, comprising a housing assembly (1), characterized in that: The inner wall of the outer shell assembly (1) is equipped with a conveying assembly (4), the outer wall of the outer shell assembly (1) is equipped with a dust removal assembly (5), the inner wall of the outer shell assembly (1) is equipped with an installation assembly (3), and the side wall of the outer shell assembly (1) is equipped with a driving assembly (2). The dust removal assembly (5) is used to absorb dust inside the outer shell assembly (1), the driving assembly (2) is used to drive the installation assembly (3) to move, and the conveying assembly (4) is used to convey coal. The conveying assembly (4) includes two connecting shafts (402), each of the two connecting shafts (402) is fitted with a conveying roller (406) on its outer wall, and a conveying belt (409) is fitted on the outer wall of the two conveying rollers (406). The outer wall of the conveying belt (409) is provided with a groove (410), and the groove (410) is recessed from both sides toward the middle to form an arc-shaped structure. The dust removal assembly (5) includes two sets of blowing devices. The two sets of blowing devices are respectively set at the top and bottom of the mounting box (103). Each set of blowing devices includes two fans (501). The two fans (501) are respectively set at both ends of the mounting box (103). The two fans (501) located at the top are respectively connected and fixed to the outside of the two first inclined holes (107). The two fans (501) located at the bottom are respectively connected and fixed to the outside of the two second inclined holes (109). The dust removal assembly (5) also includes a vacuum cleaner (502), which has two mounting brackets (504) fixedly connected to its outer circumference. The vacuum cleaner (502) has two suction pipes (505) fixedly connected to its air inlet end and an exhaust pipe (503) fixedly connected to its exhaust end. The ends of the two mounting brackets (504) are respectively connected and fixed to the outer wall of the mounting box (103), and the ends of the two suction pipes (505) are respectively connected and fixed to the inner wall of the air hole (106).

2. The coal feeder and conveying device for thermal power plants as described in claim 1, characterized in that: The outer casing assembly (1) includes two support plates (101). Two trays (102) are fixedly connected to the two support plates (101) on their relatively close sides in a symmetrical structure. A mounting box (103) is fixedly connected to the top of the two trays (102). Mounting holes (104) are provided on the top and bottom of the mounting box (103). Mounting shells (105) are fixedly connected to the top and bottom of the mounting box (103). Air holes (106) are provided on the relatively far sides of the two mounting shells (105). A first oblique hole (107) is provided on the top of the mounting box (103) in a symmetrical structure. Two second oblique holes (109) are provided on the bottom of the mounting box (103) in a symmetrical structure. A base (110) is fixedly connected to one side of the mounting box (103). Two fixing holes (108) are provided on the inner wall of the mounting box (103) in a symmetrical structure. A through hole (111) is provided on the other side of the mounting box (103).

3. The coal feeder and conveying device for thermal power plants as described in claim 1, characterized in that: The drive assembly (2) includes a mounting plate (201), the side wall of the mounting plate (201) is connected and fixed to the mounting box (103), the top of the mounting plate (201) is provided with a sliding groove (202), the inner wall of the sliding groove (202) is slidably connected to a connecting arm (205), the end of the connecting arm (205) is fixedly connected to a fixing plate (206), the top of the mounting plate (201) is fixedly connected to a first motor (203), and the output end of the first motor (203) is fixedly connected to a threaded rod (204).

4. The coal feeder and conveying device for thermal power plants as described in claim 1, characterized in that: The mounting assembly (3) includes a partition (301), which is connected and fixed to a fixing plate (206). The inner wall of the through hole (111) of the partition (301) is slidably connected. The outer wall of the partition (301) is provided with a sliding hole (302). The outer wall of the partition (301) has two shaft holes (303) in a symmetrical structure. The sliding hole (302) is located between the two shaft holes (303). The outer wall of the partition (301) has two support feet (304) in a symmetrical structure. The ends of the two support feet (304) are rotatably connected to a rotating shaft (305). The two ends of the two rotating shafts (305) are fixedly connected to rollers (306). The rollers (306) are in rolling contact with the top of the mounting plate (201).

5. The coal feeder and conveying device for thermal power plants as described in claim 1, characterized in that: Both ends of the two connecting shafts (402) are fixedly connected to the outer walls of the shafts. The two connecting sleeves (403) near the outer side are rotatably connected to the shaft hole (303) respectively, and the two connecting sleeves (403) near the inner side are slidably connected to the fixing hole (108) respectively. The outer circumference of the two connecting shafts (402) is fitted with two connecting discs (404). The inner walls of the two connecting discs (404) are fixedly connected to the connecting sleeves (403) respectively. The inner walls of the two conveying rollers (406) are fixedly connected with multiple connecting plates (405) in an annular and equally spaced structure. The ends of the multiple connecting plates (405) are fixedly connected to the outer walls of the two connecting discs (404) respectively.

6. The coal feeder and conveying device for a thermal power plant as described in claim 5, characterized in that: The conveying assembly (4) also includes a second motor (401), the output end of which is fixedly connected to a clamping rod (407), the clamping rod (407) extends into the mounting box (103), and one of the connecting shafts (402) has a groove (408) at its end, the clamping rod (407) engaging with the inner wall of the groove (408).

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