Coal bunker replacing device for coal-fired power plant

Abstract

The invention discloses a coal bunker replacing device for a coal-fired power plant, and relates to the field of raw coal storage equipment, the coal bunker replacing device comprises a moving assembly used for locking and fixing in the downward moving process, the moving assembly comprises a fixed cylinder, a clamping part is arranged on the fixed cylinder in a sliding mode, and the position of the clamping part and the fixed cylinder is kept unchanged in the downward moving process; when the fixed cylinder moves to the bottom end, the clamping part slides and is locked; a rotating cylinder is rotationally arranged on the inner wall of the fixed cylinder, and when the fixed cylinder moves downwards, the rotating cylinder rotates, so that the clamping part can penetrate through the rotating cylinder conveniently; and the locking column is located under the fixing cylinder, the locking column extends into the fixing cylinder in a matched mode, a clamping groove matched with the clamping part in a clamped mode is formed in the locking column, and the locking column is matched with the clamping part for clamping and used for limiting the moving assembly. Even if the locking bolts are corroded and fall off, stable clamping of the color steel plate by the clamping top plate and the clamping bottom plate can still be guaranteed, and falling off of the color steel plate is avoided.

Description

Technical Field

[0001] The present invention relates to the field of raw coal storage equipment, in particular to a coal bunker replacement device for a coal-fired power plant. Background Art

[0002] The circular coal bunker dome features a spherical grid structure, with color-coated steel plates, translucent panels, and ventilation caps installed on top. Due to the influence of sea breezes, monsoon winds, and flue gas condensation, the color-coated steel plates have been severely corroded. The sky-blue plates have turned brown, and some have deformed and fallen off. The fixing screws have corroded and fallen off, and the color-coated steel plates have become loose and fallen off. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is that the fixing screws of the color steel plate corrode and fall off, and the color steel plate becomes loose and falls off.

[0004] The above technical problems are solved by the following technical solutions: The present invention proposes a coal bunker replacement device for a coal-fired power plant, which includes a moving component for locking and fixing during the downward movement. It includes a fixed cylinder, and a clamping part is slidingly provided on the fixed cylinder. The clamping part maintains its position unchanged with the fixed cylinder during the downward movement. When the fixed cylinder moves to the bottom end, the clamping part slides and locks.

[0005] A rotating cylinder is rotatably provided on the inner wall of the fixed cylinder. When the fixed cylinder moves downward, the rotating cylinder rotates to facilitate the passing of the clamping portion.

[0006] The locking column is located directly below the fixed cylinder, and the locking column extends into the fixed cylinder. The locking column is provided with a slot that is clamped with the clamping part. The locking column cooperates with the clamping part to clamp and is used to limit the moving component.

[0007] In a preferred embodiment of the coal bunker replacement device for a coal-fired power plant according to the present invention, it also includes a clamping base plate and a locking bolt. An internally threaded sleeve is rotatably provided on the inner circumference of the locking column. The internally threaded sleeve is fixedly mounted on the clamping base plate. The locking bolt cooperates with the internally threaded sleeve for locking.

[0008] In a preferred embodiment of the coal bunker replacement device for a coal-fired power plant of the present invention, it further includes a clamping top plate, the fixing cylinder is fixedly mounted on the clamping top plate, and the locking bolt cooperates to pass through the clamping top plate and extend into the fixing cylinder.

[0009] In a preferred embodiment of the coal bunker replacement device for a coal-fired power plant according to the present invention, it also includes a pressure plate, which is mounted on the clamping base plate, a sealing layer is provided at one end of the pressure plate away from the locking column, and a pressure block is provided on the end face of the pressure plate facing the locking column.

[0010] In a preferred embodiment of the coal bunker replacement device for a coal-fired power plant of the present invention: the pressure plate is an arc-shaped plate, and the distance between the end surface of the pressure plate close to the locking column and the locking column gradually decreases.

[0011] In a preferred embodiment of the coal bunker replacement device for a coal-fired power plant according to the present invention: a first opening through which the clamping portion passes is provided on the rotating cylinder, a fixing column is provided on the inner circumference of the rotating cylinder, and an arc-shaped guide groove for cooperating with the fixing column is provided on the outer circumference of the locking column.

[0012] In a preferred embodiment of the coal bunker replacement device for a coal-fired power plant according to the present invention: it also includes a push ring, which is installed on the outer circumference of the rotating cylinder, and a clearance ring groove is provided on the inner circumference of the push ring, and a strip groove is provided on the clearance ring groove. A push block is provided on the inner wall of the clearance ring groove, and the distance between the end face of the push block away from the clearance ring groove and the central axis of the push ring gradually increases along the rotation direction of the push ring.

[0013] In a preferred embodiment of the coal bunker replacement device for a coal-fired power plant according to the present invention: an annular groove for cooperation with the fixed cylinder is provided in the fixed cylinder, a through opening for sliding of the clamping portion is provided on the fixed cylinder, an annular bin on which the push ring is movably arranged is provided in the fixed cylinder, and a connecting groove for movement of the push block is provided on the fixed cylinder; the connecting groove connects the annular bin and the annular groove.

[0014] In a preferred embodiment of the coal bunker replacement device for a coal-fired power plant of the present invention, a limiting column is provided in the through-opening, and a sliding groove for sliding friction with the limiting column is provided on the clamping portion.

[0015] In a preferred embodiment of the coal bunker replacement device for a coal-fired power plant according to the present invention: a support plate is provided on the end face of the pressure plate facing the locking column; a receiving groove for accommodating the support plate is provided on the bottom face of the clamping top plate, a second opening is provided on the receiving groove, and a clamping plate for clamping the support plate is provided in the receiving groove.

[0016] The beneficial effects of the present invention are: a moving component and a locking column are provided, two color steel plates are placed between the clamping top plate and the clamping bottom plate, and then the locking bolt is rotated downward to push the clamping part and clamp it into the clamping groove, thereby realizing the clamping of the moving component and the locking column. Even if the locking bolt corrodes and falls off, it can still ensure that the clamping top plate and the clamping bottom plate stably clamp the color steel plate, thereby preventing the color steel plate from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0018] Figure 1 Shows a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 The present invention shows Figure 1 sectional view of

[0020] Figure 3 Shows a schematic structural diagram of the mobile assembly in the present invention;

[0021] Figure 4 An exploded view of a moving assembly in the present invention is shown;

[0022] Figure 5 Shows a schematic structural diagram of the locking column in the present invention;

[0023] Figure 6 Shows a schematic structural diagram of the clamping top plate in the present invention;

[0024] Figure 7 Shown is a schematic diagram of the installation structure of the present invention. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0026] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0027] Reference Figure 1 The present embodiment provides a coal bunker replacement device for a coal-fired power plant, including a moving component 1, which is used for locking and fixing during the downward movement. The moving component 1 includes a fixed cylinder 11, and a clamping portion 12 is slidingly provided on the fixed cylinder 11. The clamping portion 12 maintains the same position with the fixed cylinder 11 during the downward movement. When the fixed cylinder 11 moves to the bottom end, the clamping portion 12 slides and is locked.

[0028] A rotating cylinder 13 is rotatably provided on the inner wall of the fixed cylinder 11 . When the fixed cylinder 11 moves downward, the rotating cylinder 13 rotates to facilitate the passing of the clamping portion 12 .

[0029] The locking column 2 is located directly below the fixed cylinder 11. The locking column 2 extends into the fixed cylinder 11. The locking column 2 is provided with a slot 21 that is clamped with the clamping part 12. The locking column 2 is clamped with the clamping part 12 to limit the moving component 1.

[0030] As an optional embodiment, it also includes a clamping base plate 3 and a locking bolt 4. An internally threaded sleeve 5 is rotatably provided on the inner circumference of the locking column 2. The internally threaded sleeve 5 is fixedly mounted on the clamping base plate 3. The locking bolt 4 cooperates with the internally threaded sleeve 5 to lock. The color steel sheet is supported and placed by the provided clamping base plate 3. The internally threaded sleeve 5 is fixed to the clamping base plate 3, which enables the locking column 2 to rotate relative to the clamping base plate 3. The locking cooperation between the locking column 2 and the movable assembly 1 enables the two color steel tiles to be pressed against the clamping base plate 3.

[0031] As an optional embodiment, it further includes a clamping top plate 6, a fixing cylinder 11 fixedly mounted on the clamping top plate 6, and a locking bolt 4 passing through the clamping top plate 6 and extending into the fixing cylinder 11. When the locking bolt 4 rotates, it drives the clamping top plate 6 to move toward the clamping bottom plate 3, thereby stably clamping the color steel tile located between the clamping top plate 6 and the clamping bottom plate 3. At the same time, the clamping top plate 6 drives the moving assembly 1 to move toward the locking column 2 provided on the clamping bottom plate 3, and the locking column 2 further limits the moving assembly 1, thereby further fixing the clamping top plate 6 and the clamping bottom plate 3. Even if the bolt is corroded and falls off, the stable installation of the color steel tile can still be maintained.

[0032] As an optional embodiment, a pressure plate 7 is further included, which is mounted on the clamping base 3. A sealing layer 71 is provided on the end of the pressure plate 7 away from the locking column 2, and a pressing block 8 is provided on the end surface of the pressure plate 7 facing the locking column 2. The pressing block 8 pushes the clamping portion 12 to move, thereby facilitating the clamping portion 12 to enter the clamping slot 21 for locking.

[0033] As an optional embodiment, the pressing plate 7 is an arc-shaped plate, and the distance between the end surface of the pressing plate 7 close to the locking column 2 and the locking column 2 gradually decreases. The pressing plate 7 can be compressed and deformed during the downward movement of the clamping portion 12, so that the pressing plate 7 and the sealing layer 71 can stably compress and seal the color steel plate.

[0034] As an optional embodiment, the rotating cylinder 13 is provided with a first opening 131 through which the clamping portion 12 passes, a fixing column 132 is provided on the inner circumference of the rotating cylinder 13, and an arc-shaped guide groove 22 for cooperating with the fixing column 132 is provided on the outer circumference of the locking column 2. Since the color steel plate is installed on the surface of the spherical coal bin, the color steel plate must adapt to the installation arc, so that a gap is left between the color steel plate and the clamping top plate 6 and the clamping bottom plate 3; when the fixed cylinder 13 moves downward, the first opening 131 and the clamping portion 12 are misaligned. At this time, the clamping portion 12 pushes the pressure plate 7 to bend, and the sealing layer 71 fills the gap in the compressed color steel plate. The fixed cylinder 13 continues to move downward, and the fixing column 132 moves downward synchronously. The arc-shaped guide groove 22 rotates as the fixing column 132 moves downward, thereby causing the locking column 2 to rotate.

[0035] As an optional embodiment, the push ring 9 is further included. The push ring 9 is mounted on the outer circumference of the rotating cylinder 13. A clearance ring groove 91 is provided on the inner circumference of the push ring 9. A strip groove 92 is provided on the clearance ring groove 91. A push block 10 is provided on the inner wall of the clearance ring groove 91. The distance between the end surface of the push block 10 away from the clearance ring groove 91 and the central axis of the push ring 9 gradually increases along the rotation direction of the push ring 9. When the push block 10 rotates with the push ring 9, the push block 10 gradually approaches the clamping portion 12. The arc surface of the push block 10 toward the central axis of the push ring 9 gradually pushes the clamping portion 12 to move, thereby clamping the clamping portion 12 with the clamping groove 21.

[0036] As an optional embodiment, an annular groove 111 for cooperating with the fixed cylinder 11 is provided in the fixed cylinder 11, a through opening 112 for sliding of the clamping portion 12 is provided on the fixed cylinder 11, an annular warehouse 113 for movably setting the push ring 9 is provided in the fixed cylinder 11, and a connecting groove 114 for moving the push block 10 is provided on the fixed cylinder 11; the connecting groove 114 connects the annular warehouse 113 and the annular groove 111.

[0037] As an optional embodiment, a limiting column 14 is provided in the through opening 112, and a sliding groove 121 is provided on the clamping portion 12 for sliding friction with the limiting column 14. Through the limiting of the limiting column 14, the clamping portion 12 can be stably slidably limited.

[0038] As an optional embodiment, the end surface of the pressure plate 7 facing the locking column 2 is provided with a support plate 15; the bottom surface of the clamping top plate 6 is provided with a receiving groove 61 for accommodating the support plate 15, and the receiving groove 61 is provided with a second opening 62. The receiving groove 61 is provided with a clamping plate 16 for clamping with the support plate 15. When the locking column 2 bends, the support plate 15 simultaneously enters the receiving groove 61. The support plate 15 is squeezed by the inner wall of the receiving groove 61, so that the locking column 2 is stably pressed against the inner wall of the receiving groove 61. When the locking bolt 4 corrodes and falls off, the stable clamping of the support plate 15 and the clamping plate 16 further prevents the clamping bottom plate 3 from separating from the clamping top plate 6, and further stably clamps the color steel plate.

[0039] When the locking bolt 4 is rotated downward, the locking bolt 4 drives the clamping top plate 6 to move toward the clamping bottom plate 3, and the movable assembly 1 moves toward the locking column 2. At this time, the first opening 131 is misaligned with the clamping portion 12, and the clamping portion 12 moves downward to push the pressure plate 7 to bend, and the sealing layer 71 fills the gap of the compressed color steel plate, and the fixed cylinder 11 is continuously moved downward. At this time, the first opening 131 rotates to the clamping portion 12, and under the action of the pressing block 8, the clamping portion 12 slides, and under the joint action of the pushing ring 9 and the pushing block 10, the clamping portion 12 is pushed and clamped into the clamping groove 21, thereby achieving the clamping of the movable assembly 1 and the locking column 2. Even if the locking bolt 4 corrodes and falls off, it can still ensure that the clamping top plate 6 and the clamping bottom plate 3 are stably clamped on the color steel plate, thereby preventing the color steel plate from falling off.

[0040] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A coal bunker replacement device for a coal-fired power plant, characterized by: include, The moving assembly (1) is used for locking and fixing during the downward movement, and comprises a fixed cylinder (11). A clamping portion (12) is slidably provided on the fixed cylinder (11). The clamping portion (12) maintains a constant position relative to the fixed cylinder (11) during the downward movement. When the fixed cylinder (11) moves to the bottom end, the clamping portion (12) slides to lock. A rotating cylinder (13) is rotatably provided on the inner wall of the fixed cylinder (11); when the fixed cylinder (11) moves downward, the rotating cylinder (13) rotates, which facilitates the passage of the clamping portion (12); A locking column (2), the locking column (2) is located directly below the fixed cylinder (11), the locking column (2) cooperates to extend into the fixed cylinder (11), the locking column (2) is provided with a clamping groove (21) that is clamped with the clamping portion (12), and the locking column (2) cooperates with the clamping portion (12) to clamp, so as to limit the moving component (1).

2. The coal bunker replacement device for a coal-fired power plant according to claim 1, characterized in that: It also includes a clamping base plate (3) and a locking bolt (4). An internal threaded sleeve (5) is rotatably provided on the inner circumference of the locking column (2). The internal threaded sleeve (5) is fixedly mounted on the clamping base plate (3). The locking bolt (4) cooperates with the internal threaded sleeve (5) for locking.

3. The coal bunker replacement device for a coal-fired power plant according to claim 2, characterized in that: It also includes a clamping top plate (6), the fixing cylinder (11) is fixedly mounted on the clamping top plate (6), and the locking bolt (4) cooperates to pass through the clamping top plate (6) and cooperates to extend into the fixing cylinder (11).

4. The coal bunker replacement device for a coal-fired power plant according to claim 3, characterized in that: It also includes a pressure plate (7), which is installed on the clamping base plate (3), and a sealing layer (71) is provided on the end of the pressure plate (7) away from the locking column (2), and a pressure block (8) is provided on the end surface of the pressure plate (7) facing the locking column (2).

5. The coal bunker replacement device for a coal-fired power plant according to claim 4, characterized in that: The pressure plate (7) is an arc-shaped plate, and the distance between the end surface of the pressure plate (7) close to the locking column (2) and the locking column (2) gradually decreases.

6. The coal bunker replacement device for a coal-fired power plant according to claim 5, characterized in that: The rotating cylinder (13) is provided with a first opening (131) through which the clamping portion (12) passes, the inner circumference of the rotating cylinder (13) is provided with a fixing column (132), and the outer circumference of the locking column (2) is provided with an arc-shaped guide groove (22) for cooperating with the fixing column (132).

7. The coal bunker replacement device for a coal-fired power plant according to claim 6, characterized in that: The invention also includes a push ring (9), which is installed on the outer peripheral surface of the rotating cylinder (13); a clearance ring groove (91) is provided on the inner peripheral surface of the push ring (9); a strip groove (92) is provided on the clearance ring groove (91); a push block (10) is provided on the inner wall of the clearance ring groove (91); and the distance between the end surface of the push block (10) away from the clearance ring groove (91) and the central axis of the push ring (9) gradually increases along the rotation direction of the push ring (9).

8. The coal bunker replacement device for a coal-fired power plant according to claim 7, characterized in that: The fixing cylinder (11) is provided with an annular groove (111) for the fixing cylinder (11) to cooperate with, the fixing cylinder (11) is provided with a through opening (112) for the clamping portion (12) to slide, the fixing cylinder (11) is provided with an annular bin (113) for movably setting the pushing ring (9), and the fixing cylinder (11) is provided with a connecting groove (114) for the pushing block (10) to move; the connecting groove (114) connects the annular bin (113) and the annular groove (111).

9. The coal bunker replacement device for a coal-fired power plant according to claim 8, characterized in that: A limiting column (14) is provided in the through opening (112), and a sliding groove (121) for sliding friction with the limiting column (14) is provided on the clamping portion (12).

10. The coal bunker replacement device for a coal-fired power plant according to claim 9, characterized in that: The end surface of the pressure plate (7) facing the locking column (2) is provided with a support plate (15); the bottom surface of the clamping top plate (6) is provided with a receiving groove (61) for receiving the support plate (15), the receiving groove (61) is provided with a second opening (62), and the receiving groove (61) is provided with a clamping plate (16) for clamping with the support plate (15).

Images