Anti-blocking control structure of raw coal bunker of thermal power plant

Abstract

The utility model relates to the technical field of heat-engine plant raw coal conveying, and discloses an anti-blocking control structure of a heat-engine plant raw coal bunker, which comprises a coal bunker, cleaning components are mounted on two sides of the upper end of the coal bunker in a limiting manner, and clamping components are correspondingly arranged on two sides of the outer wall of each cleaning component. A T-shaped pull block drives a mounting plate and triangular blocks to be inserted into an inner cavity of an insertion groove, so that an intercepting plate fixedly mounted on one side of the lower end of the T-shaped pull block is inserted downwards along the inner wall of a penetrating frame, meanwhile, a connecting block is inserted into an inner cavity of a clamping groove, and when the mounting plate goes deep, the triangular blocks on the two sides of the mounting plate extrude trapezoidal clamping blocks with elastic elements; when the cleaning assembly is replaced, the trapezoid clamping blocks are reset and clamped after being shrunk, the whole cleaning assembly is locked, at the moment, the supporting blocks drive the brushes on the connecting blocks to be attached to the surface of the crushing roller for cleaning, fixation can be relieved only by operating the clamping assembly during replacement, and rapid disassembly, assembly and maintenance of the assembly are completed.

Description

Technical Field

[0001] This utility model relates to the field of raw coal transportation technology in thermal power plants, specifically to an anti-blocking control structure for raw coal bunkers in thermal power plants. Background Technology

[0002] Raw coal refers to coal mined underground that has only undergone manual sorting to reveal visible gangue and impurities, without any washing, screening, or other processing. It is typically used as a raw material for industries such as thermal power generation, steel smelting, and chemical production. Coal-fired boilers in thermal power plants usually have raw coal silos in front of the furnace to hold the coal. The coal in the silos is then transported to the boiler for combustion to release its energy. However, because raw coal is usually in small pieces, large quantities are often piled up in the silos during feeding, which can easily cause blockages at the discharge port, necessitating anti-blockage measures for the silos.

[0003] For example, a coal bunker anti-clogging structure for power plants with application number CN202320188607.1 includes a coal storage bunker, an anti-clogging component, an L-shaped fixing plate, a servo motor, a first rotating shaft, a first belt, a second rotating shaft, a crushing roller, and a cleaning brush. The cleaning brush is used to clean the raw coal lumps adhering to the crushing roller, thereby improving the overall working efficiency of the equipment and making it more convenient for staff to use.

[0004] In the aforementioned coal bunker anti-clogging structure, the raw coal blocks on the outer surface of the crushing roller are cleaned by a cleaning brush. However, after long-term use, the brush bristles will shed or curl, requiring regular replacement. The existing cleaning brushes are fixed on both sides of the inner wall of the coal bunker, making it inconvenient to disassemble and replace them.

[0005] Therefore, we propose an anti-blocking control structure for the raw coal bunker of a thermal power plant to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide an anti-clogging control structure for the raw coal bunker of a thermal power plant, so as to solve the problem mentioned in the background art that the existing cleaning brushes are fixed on both sides of the inner wall of the coal bunker, which makes it inconvenient to disassemble and replace the cleaning brushes.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-blocking control structure for a raw coal bunker in a thermal power plant, comprising a coal bunker and a drive motor fixedly installed on the upper part of the middle of one side of the outer wall of the coal bunker. A first crushing roller is fixedly installed at the output end of the drive motor, a belt is provided on the outer surface of the output end of the drive motor, and a second crushing roller is provided at the other end of the belt. A filter assembly is provided in the middle of the inner cavity of the coal bunker near the lower end. A cleaning assembly is installed on both sides of the upper end of the coal bunker, and a snap-fit ​​assembly is provided on both sides of the outer wall of the cleaning assembly. The snap-fit ​​assembly is designed to be suitable for installing and fixing the cleaning assembly.

[0008] The cleaning assembly includes a pulling mechanism and a docking mechanism fixedly installed on the lower end of one side of the outer wall of the pulling mechanism. The pulling mechanism is configured to drive the docking mechanism to move to a set position.

[0009] Preferably, the coal bunker includes a through frame and insertion slots opened in the middle of both sides of the upper end of the through frame. Multiple slots are opened linearly and equally spaced on one side of the inner wall of the insertion slot. Embedding slots are opened at the lower ends of both ends of the inner wall of the insertion slot. A connecting slot is opened in the middle of the upper end of the inner wall of the embedding slot.

[0010] Preferably, the filter assembly includes a fixed block and springs fixedly installed at the upper end of the fixed block in a linear and equidistant manner, with a filter screen plate fixedly installed at the upper end of the springs.

[0011] Preferably, the pulling mechanism includes a T-shaped pull block and an intercepting plate fixedly installed on one side of the lower end of the T-shaped pull block. A handle is fixedly installed at the middle of the upper end of the T-shaped pull block, and an installation plate is fixedly installed at the middle of the lower end of the T-shaped pull block. Triangular blocks are fixedly installed on the middle of both sides of the outer wall of the installation plate near the lower end.

[0012] Preferably, the docking mechanism includes a support block and a connecting block that is linearly and equally spaced and fixedly installed on one side of the outer wall of the support block, and a brush is planted on the other side of the outer wall of the support block.

[0013] Preferably, the snap-fit ​​assembly includes a long insert block and a pull block fixedly installed on the upper end of the long insert block, a trapezoidal snap-fit ​​block is fixedly installed on the lower end of the long insert block, and an elastic element is fixedly installed in the middle of one end of the trapezoidal snap-fit ​​block.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Through the arrangement of T-shaped pull blocks, mounting plates, triangular blocks, insertion slots, intercepting plates, through frames, slots, elastic elements, trapezoidal blocks, support blocks, snap-fit ​​components, and brushes, when the mounting plate is inserted, the triangular blocks on both sides press against the trapezoidal blocks with elastic elements, causing the trapezoidal blocks to retract and reset, thus achieving overall locking of the cleaning component. At this time, the support block drives the brush on the connecting block to adhere to the surface of the crushing roller for cleaning. When replacing, simply operate the snap-fit ​​components to release the fixation, completing the quick disassembly and maintenance of the component.

[0016] 2. When the brush is damaged, move the pull block to drive the long insert block and trapezoidal locking block to move, causing the elastic element to contract. After the trapezoidal locking block releases the limiting engagement of the triangular block, pull the handle to remove and replace the T-shaped pull block, mounting plate and other components as a whole. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2This is a three-dimensional structural diagram of the filter assembly, cleaning assembly, and snap-fit ​​assembly of this utility model;

[0019] Figure 3 For the present utility model Figure 2 Enlarged view of point A;

[0020] Figure 4 For the present utility model Figure 2 Enlarged view of point B;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the coal bunker of this utility model.

[0022] In the diagram: 1. Coal bunker; 11. Through frame; 12. Insertion slot; 13. Slot; 14. Embedding slot; 15. Connecting slot; 2. Drive motor; 3. First crushing roller; 4. Belt; 5. Second crushing roller; 6. Filter assembly; 61. Fixing block; 62. Spring; 63. Filter screen; 7. Cleaning assembly; 71. Pulling mechanism; 711. T-shaped pull block; 712. Interception plate; 713. Handle; 714. Mounting plate; 715. Triangular block; 72. Docking mechanism; 721. Support block; 722. Connecting block; 723. Brush; 8. Embedding assembly; 81. Long insert block; 82. Pulling block; 83. Trapezoidal locking block; 84. Elastic element. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figures 1-5 A blockage prevention control structure for a raw coal bunker in a thermal power plant includes a coal bunker 1 and a drive motor 2 fixedly installed on the upper part of the middle of one side of the outer wall of the coal bunker 1. A first crushing roller 3 is fixedly installed at the output end of the drive motor 2. A belt 4 is provided on the outer surface of the output end of the drive motor 2. A second crushing roller 5 is provided at the other end of the belt 4. The drive motor 2 drives the belt 4 and the first crushing roller 3 to rotate, and at the same time, the belt 4 drives the second crushing roller 5 to rotate. Through the rotation of the first crushing roller 3 and the second crushing roller 5, the coal blocks entering the coal bunker are crushed.

[0025] A filter assembly 6 is provided in the middle of the inner cavity of the coal bunker 1 near the lower end. A cleaning assembly 7 is installed on both sides of the upper end of the coal bunker 1. A snap-fit ​​assembly 8 is provided on both sides of the outer wall of the cleaning assembly 7. The snap-fit ​​assembly 8 is designed to be suitable for installing and fixing the cleaning assembly 7.

[0026] The cleaning component 7 includes a pulling mechanism 71 and a docking mechanism 72 fixedly installed on the lower end of one side of the outer wall of the pulling mechanism 71. The pulling mechanism 71 is configured to drive the docking mechanism 72 to move in a set position.

[0027] The coal bunker 1 includes a through frame 11 and an insertion groove 12 opened in the middle of both sides of the upper end of the through frame 11. Multiple slots 13 are linearly and equally spaced on one side of the inner wall of the insertion groove 12. Embedding grooves 14 are opened at the lower ends of both ends of the inner wall of the insertion groove 12. A connecting groove 15 is opened in the middle of the upper end of the inner wall of the embedding groove 14.

[0028] The filter assembly 6 includes a fixed block 61 and springs 62 that are fixedly installed on the upper end of the fixed block 61 at linear and equal intervals. A filter screen 63 is fixedly installed on the upper end of the springs 62. The fixed block 61 drives the springs 62 to be fixedly installed on the inner walls of the coal bunker 1 on both sides near the lower end.

[0029] The pulling mechanism 71 includes a T-shaped pull block 711 and a stop plate 712 fixedly installed on one side of the lower end of the T-shaped pull block 711. A handle 713 is fixedly installed in the middle of the upper end of the T-shaped pull block 711. The handle 713 is designed to drive the T-shaped pull block 711, the stop plate 712 and the mounting plate 714 to move.

[0030] A mounting plate 714 is fixedly installed at the lower middle of the T-shaped pull block 711. A docking mechanism 72 is threadedly fixed on one side of the outer wall of the mounting plate 714. Triangular blocks 715 are fixedly installed on the middle of both sides of the outer wall of the mounting plate 714 near the lower end.

[0031] The docking mechanism 72 includes a support block 721 and a connecting block 722 that is linearly and equally spaced and fixedly installed on one side of the outer wall of the support block 721. A brush 723 is planted on the other side of the outer wall of the support block 721. The connecting block 722 is fixedly installed on one end of the outer wall of the mounting plate 714 by screw threads. The T-shaped pull block 711 drives the mounting plate 714 and the triangular block 715 to be inserted from the upper end of the insertion slot 12.

[0032] The connecting block 722 is inserted into the inner cavity of the card slot 13. The intercepting plate 712 is set on the upper end of the slot opening side of the card slot 13. This setting prevents dust or coal from entering the inner cavity of the insertion slot 12 from the inner cavity of the card slot 13.

[0033] In this embodiment: by inserting the T-shaped pull block 711, the mounting plate 714, and the triangular block 715 into the inner cavity of the insertion slot 12, the intercepting plate 712, which is fixedly installed on the lower side of the T-shaped pull block 711, is inserted downward along the inner wall of the through frame 11. At the same time, the connecting block 722 is inserted into the inner cavity of the slot 13. As the mounting plate 714 is inserted deeper, the triangular blocks 715 and the trapezoidal locking blocks 83, which are fixedly installed on the lower ends of both sides of the outer wall of the mounting plate 714, come into contact. After being squeezed, the trapezoidal locking blocks 83 move elastically. Component 84 retracts, causing the triangular block 715 to be pushed into the lower end of the trapezoidal block 83. The upper end of the trapezoidal block 83 limits and engages the triangular block 715, thereby directly fixing the positions of the T-shaped pull block 711, mounting plate 714, support block 721, connecting block 722 and brush 723. The support block 721 enables the connecting block 722 to drive the brush 723 to be positioned on both sides of the outer wall of the first crushing roller 3 and the second crushing roller 5, respectively, to clean the first crushing roller 3 and the second crushing roller 5.

[0034] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 4 The snap-fit ​​assembly 8 includes a long insert block 81 and a pull block 82 fixedly installed on the upper end of the long insert block 81. A trapezoidal snap block 83 is fixedly installed on the lower end of the long insert block 81. An elastic element 84 is fixedly installed in the middle of one end of the trapezoidal snap block 83. The long insert block 81 is movably installed in the inner cavity of the connecting groove 15. One end of the elastic element 84 is fixedly installed in the middle of the inner wall of the embedding groove 14.

[0035] The trapezoidal locking block 83 is installed in the inner cavity of the embedding groove 14 under the elastic force of the elastic element 84.

[0036] In this embodiment: after the brush 723 is damaged, by moving the pull block 82, the pull block 82 drives the long insert block 81 and the trapezoidal locking block 83 to move, causing the elastic element 84 to contract. After the trapezoidal locking block 83 loses its limiting engagement with the triangular block 715, the handle 713 can be pulled directly to remove and replace the T-shaped pull block 711, the mounting plate 714, the triangular block 715, the support block 721, the connecting block 722 and the brush 723, which is convenient to use.

[0037] Working principle: By inserting the T-shaped pull block 711, the mounting plate 714, and the triangular block 715 into the inner cavity of the insertion slot 12, the intercepting plate 712, which is fixedly installed on the lower side of the T-shaped pull block 711, is inserted downward along the inner wall of the through frame 11. At the same time, the connecting block 722 is inserted into the inner cavity of the slot 13. As the mounting plate 714 goes deeper, the triangular blocks 715 and the trapezoidal locking blocks 83, which are fixedly installed on the lower sides of the outer wall of the mounting plate 714, come into contact. When the trapezoidal locking blocks 83 are compressed, the elastic element 84 contracts, causing the triangular block 715 to push into the lower end of the trapezoidal locking blocks 83. The upper end of the trapezoidal locking blocks 83 limits and locks the triangular block 715, thereby directly completing the connection between the T-shaped pull block 711 and the mounting plate 714. The positions of mounting plate 714, support block 721, connecting block 722, and brush 723 are fixed. The support block 721 enables the connecting block 722 to drive the brush 723 to be positioned on both sides of the outer wall of the first crushing roller 3 and the second crushing roller 5 respectively, to clean the first crushing roller 3 and the second crushing roller 5. After the brush 723 is damaged, the pull block 82 is moved, which causes the long insert block 81 and trapezoidal locking block 83 to move, causing the elastic element 84 to contract. After the trapezoidal locking block 83 loses its limiting engagement with the triangular block 715, the handle 713 can be pulled directly to remove and replace the T-shaped pull block 711, mounting plate 714, triangular block 715, support block 721, connecting block 722, and brush 723.

[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A blockage control structure for a coal bunker in a thermal power plant, comprising a coal bunker (1) and a drive motor (2) fixedly installed on the upper part of the middle side of the outer wall of the coal bunker (1), wherein a first crushing roller (3) is fixedly installed at the output end of the drive motor (2), a belt (4) is provided on the outer surface of the output end of the drive motor (2), a second crushing roller (5) is provided at the other end of the belt (4), and a filter assembly (6) is provided in the middle of the inner cavity of the coal bunker (1) near the lower end, characterized in that: Cleaning components (7) are installed on both sides of the upper end of the coal bunker (1). The outer walls of the cleaning components (7) are respectively provided with snap-fit ​​components (8). The snap-fit ​​components (8) are provided to be suitable for installing and fixing the cleaning components (7). The cleaning component (7) includes a pulling mechanism (71) and a docking mechanism (72) fixedly installed on the lower end of one side of the outer wall of the pulling mechanism (71). The pulling mechanism (71) is configured to drive the docking mechanism (72) to move in a set position.

2. The anti-blocking control structure for a raw coal bunker in a thermal power plant according to claim 1, characterized in that: The coal bunker (1) includes a through frame (11) and an insertion slot (12) opened in the middle of both sides of the upper end of the through frame (11). Multiple slots (13) are opened linearly and equally spaced on one side of the inner wall of the insertion slot (12). Embedding slots (14) are opened at the lower ends of both ends of the inner wall of the insertion slot (12). A connecting slot (15) is opened in the middle of the upper end of the inner wall of the embedding slot (14).

3. The anti-blocking control structure for a raw coal bunker in a thermal power plant according to claim 1, characterized in that: The filter assembly (6) includes a fixed block (61) and springs (62) fixedly installed at the upper end of the fixed block (61) in a linear and equidistant manner. A filter screen (63) is fixedly installed at the upper end of the spring (62).

4. The anti-blocking control structure for a raw coal bunker in a thermal power plant according to claim 1, characterized in that: The pulling mechanism (71) includes a T-shaped pull block (711) and an intercepting plate (712) fixedly installed on one side of the lower end of the T-shaped pull block (711). A handle (713) is fixedly installed at the middle of the upper end of the T-shaped pull block (711), and an installation plate (714) is fixedly installed at the middle of the lower end of the T-shaped pull block (711). Triangular blocks (715) are fixedly installed on the middle of both sides of the outer wall of the installation plate (714) near the lower end.

5. The anti-blocking control structure for a raw coal bunker in a thermal power plant according to claim 1, characterized in that: The docking mechanism (72) includes a support block (721) and a connecting block (722) fixedly installed on one side of the outer wall of the support block (721) at linear and equal intervals. A brush (723) is planted on the other side of the outer wall of the support block (721).

6. The anti-blocking control structure for a raw coal bunker in a thermal power plant according to claim 1, characterized in that: The snap-fit ​​assembly (8) includes a long insert block (81) and a pull block (82) fixedly installed on the upper end of the long insert block (81). A trapezoidal snap block (83) is fixedly installed at the lower end of the long insert block (81), and an elastic element (84) is fixedly installed at the middle of one end of the trapezoidal snap block (83).

Images