Opening and closing device for bottom of ash bin

Abstract

The invention discloses an opening and closing device for the bottom of an ash bin, and belongs to the field of ash bin opening and closing equipments.The opening and closing device comprises a frame body, two vertical through openings are formed in the frame body, and the two through openings are separated through a separation column; the gate valve is telescopically arranged in the through opening, and a penetrating opening allowing the gate valve to penetrate through is formed in the partition column; the groove is formed in one side of the partition column, and a scraping mechanism is detachably mounted in the groove; the two side baffles are arranged on the two sides of one of the through openings respectively, and elastic telescopic check blocks are detachably arranged at the lower ends of the side baffles; ash adhering to the surface of the gate valve can be scraped through the scraping mechanism, the situation that residual ash on the gate valve is brought to the penetrating opening of the partition column can be avoided, in addition, the check blocks of the two side baffles are matched to form a side face enclosure, and the situation that the ash enters a fit clearance from the two sides, so that parts are abraded, the clearance is enlarged, and the service life of the gate valve is prolonged can be effectively prevented. And the condition that parts are abraded quickly can be greatly prevented, the service life is effectively prolonged, and the cleanliness is ensured.

Description

Technical Field

[0001] This invention relates to the field of ash silo opening and closing technology, and more specifically, to an opening and closing device for the bottom of an ash silo. Background Technology

[0002] During the production and operation of a coal gasification furnace, a large amount of ash and slag is generated. The ash and slag are transported to an ash and slag silo for temporary storage via a slag discharge system. After the slag cart returns to its position, the slide gate valve in the bottom frame of the ash and slag silo opens, and the ash and slag fall into the slag cart to complete the transfer. The slide gate valve is a key opening and closing component of the ash and slag silo, realizing the temporary storage and quantitative discharge of ash and slag.

[0003] However, traditional slide gate valves are simple flat plates with simple frame structures. When the slide gate valve moves back and forth to open and close, ash and slag easily adhere to its surface, which affects the smoothness of the slide gate valve's movement and opening and closing. Ash and slag can also easily enter the fitting gap between the slide gate valve and the frame. Long-term use will not only lead to faster wear of parts and affect service life, but also cause ash, slag and sludge leakage, polluting the site environment and increasing cleaning costs.

[0004] Therefore, it is necessary to provide an opening and closing device for the bottom of the ash silo to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide an opening and closing device for the bottom of an ash silo to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A bottom opening and closing device for an ash silo, detachably installed at the bottom outlet of the ash silo, comprising: The frame has two through openings that run vertically through it, and the two openings are separated by a partition column. One of the openings is connected to the outlet of the ash silo. A slide gate valve is retractably disposed within the through-hole, and the partition post has a through-hole for the slide gate valve to pass through. A groove is formed on one side of the partition column, and a scraping mechanism is detachably installed in the groove for scraping and cleaning the ash and slag on the upper surface of the slide valve. Two side baffles are respectively provided on both sides of one of the openings, and the lower end of the side baffles is provided with a removable elastically telescopic stop.

[0007] Furthermore, a telescopic component is installed at one end of the frame, and the telescopic end of the telescopic component extends into the port and is connected to one end of the slide valve.

[0008] Furthermore, the scraping mechanism includes: The mounting bracket is connected to the inner wall of the groove, and a screw is threadedly connected to the mounting bracket. An adapter plate is rotatably connected to the bottom of the screw. A scraper is elastically telescopically positioned below the adapter plate, and the scraper has an inclined surface on the side facing the inner wall of the groove.

[0009] Furthermore, the adapter plate has multiple internal cavities, and the inner wall of each cavity is slidably connected to a connecting column that is connected to the scraper. A first elastic element is provided between the top wall of the cavity and the connecting column.

[0010] Furthermore, it also includes a side connecting plate that can be detachably installed at the bottom of the side baffle. The side connecting plate has multiple hidden cavities inside. The stop block is slidably connected in the hidden cavity, and a second elastic element is provided between the upper end of the stop block and the top wall of the hidden cavity.

[0011] Furthermore, the bottom of the side baffle is provided with multiple insertion holes, and the side wall of the side baffle is provided with multiple limiting holes that communicate with each of the insertion holes. The top of the side connecting plate is provided with an insertion post that is adapted to the insertion hole, and the insertion post is provided with a retractable limiting block that is adapted to the limiting hole.

[0012] Furthermore, the insert has an internal cavity that is slidably connected to the limiting block, and a third elastic element is provided between the inner wall of the cavity and the limiting block.

[0013] Furthermore, a collection trough is detachably installed on the outer end of the frame, and an opening is also provided at one end of the frame corresponding to the collection trough for the insert valve to pass through. A drain outlet is provided at the bottom of the collection trough, and a filter screen is installed in the drain outlet.

[0014] Furthermore, the outer wall of the frame is also provided with two support plates, and a rotating shaft is rotatably connected between the two support plates. A blocking plate for blocking the opening is provided on the rotating shaft. The support plate is provided with a torsion spring, and the other end of the torsion spring is connected to the rotating shaft.

[0015] Furthermore, the inner wall of the port is provided with a track bar, and the bottom of the slide valve slides in contact with the track bar.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. During the movement of the slide gate valve, the scraping mechanism of this invention can scrape off the ash and slag adhering to the surface of the slide gate valve, preventing residual ash and slag from being carried to the through-hole of the partition column and affecting the smoothness of the slide gate valve's movement and opening and closing. In addition, the two side baffles form a side enclosure for the slide gate valve, which can effectively prevent ash and slag from entering the gap between the valve and the frame from both sides, thus preventing wear of the parts and enlargement of the gap. This can greatly prevent the parts from wearing out quickly under long-term use, effectively improving the service life, and greatly avoiding the problem of ash and slag leakage caused by enlarged gaps, ensuring the cleanliness of the site and reducing cleaning costs.

[0017] 2. The present invention features a scraper with an elastic floating design that fits tightly without damaging the surface of the slide gate valve; and a side baffle with an elastically extendable block at the bottom, which, together with a flexible rubber pad, fits tightly against the upper surface of the slide gate valve, effectively sealing gaps and preventing leakage of ash and slag water.

[0018] 3. When the slide gate valve extends and closes, the baffle plate will press against the bottom of the slide gate valve, which can prevent the slag water from continuing to flow back towards the ash bin, thus playing a role in backflow and preventing backflow; and when the slide gate valve retracts and opens, the baffle plate rotates and resets to block the end opening, which can prevent ash from overflowing from the end opening.

[0019] 4. This solution integrates opening and closing, slag removal, leak prevention, and collection functions into one unit, without occupying additional installation space. It can directly replace traditional slide gate valve devices, requiring minimal modification work. It can reduce the frequency of downtime maintenance, spare parts replacement, and on-site cleanup costs, achieving cost reduction and efficiency improvement, with outstanding economic benefits and usage value. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the opening and closing device at the bottom of the ash bin of the present invention; Figure 2 This is a three-dimensional structural diagram of the frame of the opening and closing device of the present invention; Figure 3 This is a structural schematic diagram of the frame from the bottom view of the present invention; Figure 4 This is a three-dimensional structural diagram of the scraping mechanism of the present invention; Figure 5 This is a partial cross-sectional three-dimensional structural schematic diagram of the adapter plate of the present invention; Figure 6 This is a top view of the frame structure of the present invention; Figure 7 for Figure 6 A structural schematic diagram showing a section view at point AA rotated 90 degrees. Figure 8 for Figure 7 Enlarged structural diagram at point C; Figure 9 for Figure 8 Enlarged view of point D; Figure 10 for Figure 6 A structural schematic diagram showing a cross-section at point BB rotated 90 degrees. Figure 11 for Figure 10 Enlarged structural diagram at point E; Figure 12 This is a three-dimensional structural diagram of the baffle plate on the support plate of the present invention; Figure 13 This is a partial structural diagram of the side connecting plate and the stop block of the present invention.

[0021] Explanation of the labels in the diagram: 1. Ash bin; 2. Frame; 3. Opening; 4. Divider; 5. Slide valve; 6. Scraper mechanism; 61. Mounting bracket; 62. Screw; 63. Adapter plate; 64. Scraper; 65. Telescopic rod; 7. Side baffle; 8. Stop block; 9. Groove; 10. Inner cavity; 11. Connecting column; 12. First elastic element; 13. Side connecting plate; 14. Concealed cavity; 15. Second elastic element; 16. Insertion hole; 7. Limiting hole; 18. Insert post; 19. Limiting block; 20. Recessed cavity; 21. Third elastic element; 22. Collection trough; 23. Support plate; 24. Rotating shaft; 25. Baffle plate; 26. Torsion spring; 27. Track bar; 28. Side cavity area; 29. ​​Support plate; 30. Lead screw; 31. Bracket; 32. Roller brush; 33. Drain outlet; 34. Telescopic component; 35. Slide rod; 36. Flushing pipe. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-13 A bottom opening and closing device for an ash silo, detachably installed at the bottom outlet of the ash silo 1, comprising: The frame 2 has two through openings 3 that run vertically through it. The two through openings 3 are separated by a partition column 4. One of the through openings 3 is connected to the outlet of the ash silo 1. The slide valve 5 is telescopically installed in the port 3, and the partition column 4 has a through-hole for the slide valve 5 to pass through. The groove 9 is located on one side of the partition column 4. A scraper mechanism 6 is detachably installed in the groove 9 to scrape off the ash and slag on the upper surface of the slide valve 5. The scraper mechanism 6 is easy to clean and replace later. Two side baffles 7 are respectively located on both sides of one of the openings 3. The lower end of the side baffle 7 is provided with a removable elastic telescopic block 8. The bottom of the block 8 is provided with a flexible rubber pad. The flexible rubber pad avoids hard contact, making the seal more snug and not damaging the contact surface.

[0024] During installation, the frame 2 is fixedly installed at the bottom outlet of the ash bin 1, ensuring that one opening 3 of the frame 2 is connected to the bottom opening of the ash bin 1, serving as a channel for ash to fall.

[0025] During operation, when the slag car is at the bottom of frame 2, the slide gate valve 5 retracts, moving from the opening below the ash bin 1 through port 3 to the other side through port 3. At this time, port 3, which communicates with ash bin 1, opens, and ash falls into the slag car through port 3, completing the slag discharge. After the slag car finishes receiving slag, the slide gate valve 5 extends, moving to the opening 3 at the bottom of ash bin 1, sealing the opening 3 at the bottom of ash bin 1. In other words, the opening and closing of the bottom outlet of ash bin 1 is achieved by the extension and retraction of the slide gate valve 5 within the opening 3.

[0026] During the movement of the slide gate valve 5, the scraping mechanism 6 in the groove 9 can scrape off the ash and slag adhering to the surface of the slide gate valve 5, preventing residual ash and slag from being carried to the through-hole of the partition column 4, thus preventing it from affecting the smooth opening and closing of the slide gate valve 5, and also preventing ash and slag from entering the through-hole and causing wear and jamming. In addition, the blocks 8 of the two side baffles 7 form a side enclosure for the slide gate valve 5, which can effectively prevent ash and slag from entering the gap between the slide gate valve 5 and the frame 2 from the sides, thus preventing the parts from wearing and the gap from widening. At the same time, the scraping effect of the scraping mechanism 6 can greatly prevent the parts from wearing out quickly under long-term use, effectively improving the service life, and greatly avoiding the problem of ash and slag leakage caused by the widening of the gap, ensuring the cleanliness of the site and reducing cleaning costs.

[0027] In addition, the combination of the elastic telescopic stop 8 and the flexible rubber pad can adaptively press the slide valve 5 to seal the gaps and greatly reduce the risk of material leakage, slag leakage and water leakage.

[0028] For preferred options, please refer to [link / reference]. Figure 1 One end of the frame 2 is equipped with a telescopic component 34. The telescopic end of the telescopic component 34 extends into the port 3 and is connected to one end of the slide valve 5. The telescopic component 34 in this application can be a cylinder, a hydraulic cylinder, an electric push rod, etc.

[0029] Specifically, by controlling the extension / retraction of the telescopic component 34, the slide valve 5 is driven to move linearly within the port 3 to complete the opening and closing: when the telescopic component 34 extends, it pushes the slide valve 5 to close the port 3; when the telescopic component 34 retracts, it pulls the slide valve 5 to open the port 3, and the ash and slag fall down.

[0030] For preferred options, please refer to [link / reference]. Figure 2-5 , Figure 7 and Figure 10 The scraping mechanism 6 includes: Mounting bracket 61 is connected to the inner wall of groove 9. A screw rod 62 is threadedly connected to mounting bracket 61. A transition plate 63 is rotatably connected to the bottom of screw rod 62. A telescopic rod 65 is provided between mounting bracket 61 and transition plate 63. The scraper 64 is elastically telescopically positioned below the adapter plate 63, and the scraper 64 has an inclined surface on the side facing the inner wall of the groove 9.

[0031] Specifically, when the slide gate valve 5 extends or retracts, the ash and slag on the slide gate valve 5 are scraped off by the scraper 64 that is in contact with it. When the slide gate valve 5 extends and closes, the end of the slide gate valve 5 will first contact the inclined surface of the scraper 64, which will squeeze the scraper 64 and cause it to move upward and retract. After the slide gate valve 5 continues to move, the scraper 64 will always remain in contact with the slide gate valve 5 due to elastic compression, ensuring the scraping effect while preventing ash and slag from overflowing, and scraping the material cleanly and thoroughly.

[0032] Rotating the screw 62 causes the adapter plate 63 to rise and fall, thereby adjusting the height of the scraper 64. Simultaneously, the telescopic rod 35 extends and retracts with the up-and-down movement of the adapter plate 63, maintaining the vertical rise and fall of the adapter plate 63 without deviation. This allows for adjustment of the scraper 64 height to accommodate different thickness slide gate valves 5, and also adjusts the elastic pressure of the scraper 64 against the slide gate valve 5. It can be adjusted as needed, offering strong versatility.

[0033] For preferred options, please refer to [link / reference]. Figure 4-5 The adapter plate 63 has multiple inner cavities 10 inside. The inner wall of the inner cavity 10 is slidably connected to the connecting column 11 connected to the scraper 64. A first elastic element 12 is provided between the top wall of the inner cavity 10 and the connecting column 11. The first elastic element 12 in this application can be a spring or a damper.

[0034] Specifically, when the scraper 64 is squeezed by the slide gate valve 5, it will drive the connecting column 11 to move into the inner cavity 10, and compress the first elastic element 12 to cause it to elastically deform. The first elastic element 12 continuously pushes the connecting column 11 downward, so that the scraper 64 always presses against the slide gate valve 5, allowing the scraper 64 to float with the valve plate to scrape material, which also improves the sealing effect. In addition, the elastic buffer protection prevents hard contact from scratching the surface of the slide gate valve 5.

[0035] For preferred options, please refer to [link / reference]. Figure 2-3 and Figure 7-13 It also includes a side connecting plate 13 that can be detachably installed at the bottom of the side baffle 7. The side connecting plate 13 has multiple hidden cavities 14 inside. The block 8 is slidably connected in the hidden cavity 14, and a second elastic element 15 is provided between the upper end of the block 8 and the top wall of the hidden cavity 14. The second elastic element 15 in this application can be a spring or a damper.

[0036] Specifically, when the slide gate valve 5 moves to the side baffle 7, it will squeeze the baffle 8 to move upward and cause the second elastic element 15 to compress and deform. The second elastic element 15 pushes the baffle 8 downward, so that the flexible rubber pad at the bottom of the baffle 8 presses the slide gate valve 5, thereby achieving continuous sealing and pressing, sealing the side gaps, preventing ash and slag from entering the side fitting gaps, and achieving a significant leak-proof effect.

[0037] The second elastic element 15 enables the stop block 8 to extend and retract automatically, adapting to different height differences and ensuring that the stop block 8 fits snugly against the slide valve 5. Furthermore, by extending and retracting multiple stop blocks 8 individually, it is possible to prevent ash and slag from getting stuck at the bottom of the stop block 8, thus avoiding gaps throughout the entire assembly and greatly reducing the risk of ash and slag getting stuck and overflowing.

[0038] In addition, the detachable side connecting plate 13 makes it easy to replace the stop block 8, thus improving the overall service life.

[0039] In this embodiment, preferably, please refer to [reference needed]. Figure 7-9 and Figure 13 The bottom of the side baffle 7 is provided with multiple insertion holes 16, and the side wall of the side baffle 7 is provided with multiple limiting holes 17 that communicate with each insertion hole 16. The top of the side connecting plate 13 is provided with an insertion post 18 that is adapted to the insertion hole 16, and the insertion post 18 is provided with a retractable limiting block 19 that is adapted to the limiting hole 17.

[0040] Specifically, when the side connecting plate 13 is installed onto the side baffle 7, the various pins 18 on the side connecting plate 13 are first inserted into the corresponding holes 16 on the side baffle 7. During insertion, the limiting block 19 will be compressed and retracted. After insertion, the limiting block 19 will be in the position of the limiting hole 17. When the limiting block 19 is no longer compressed, it will return to its original position and extend to engage with the limiting hole 17, thus completing the quick positioning and locking of the side connecting plate 13. When disassembling, simply squeeze the limiting block 19 to retract it and disengage it from the limiting hole 17, and then the side connecting plate 13 can be removed.

[0041] The plug-and-play installation allows for tool-free quick installation and disassembly, resulting in high maintenance efficiency and significantly reducing maintenance time and downtime costs.

[0042] For preferred options, please refer to [link / reference]. Figure 8-9 The insert 18 has an inner cavity 20 that is slidably connected to the limiting block 19. A third elastic element 21 is provided between the inner wall of the inner cavity 20 and the limiting block 19. The third elastic element 21 in this application can be a spring or a damper.

[0043] With this design, when the insert 18 is inserted into the corresponding insertion hole 16 of the side baffle 7, the limiting block 19 will be squeezed and move toward the recessed cavity 20, and the third elastic element 21 will be compressed and deformed; when the limiting block 19 is at the limiting hole 17, the third elastic element 21 will reset and drive the limiting block 19 to move and lock into the limiting hole 17.

[0044] For preferred options, please refer to [link / reference]. Figure 1-3 and Figure 10 The outer end of the frame 2 is detachably equipped with a collection trough 22. One end of the corresponding collection trough 22 of the frame 2 is also provided with a through-hole for the slide valve 5 to pass through. The bottom of the collection trough 22 is provided with a drain outlet 33. A filter screen is installed in the drain outlet 33. A flushing pipe 36 is installed on the outer wall of the collection trough 8.

[0045] Specifically, when the slide gate valve 5 extends to close the bottom outlet of the ash bin 1, the end of the slide gate valve 5 also passes through the opening at the end of the frame 2. During the closing process, some of the slag and water on the surface of the slide gate valve 5 flows towards the collection tank 22 and eventually falls into the collection tank 22 for collection. The slag and water in the collection tank 22 can flow back to the slag pool of the production system through the drain outlet 33 and the pipeline, realizing the recycling and reprocessing of the slag and water. The filter screen can intercept ash and slag, preventing large particles of ash and slag from clogging the pipeline over a long period of time.

[0046] In addition, the flushing water source can be turned on, and flushing water can be injected into the collection tank 22 through the flushing pipe 36 to flush the inside of the tank, prevent ash and slag from accumulating and clogging the collection tank 22, and clean the collection tank 22 more quickly.

[0047] For preferred options, please refer to [link / reference]. Figure 10-12 The outer wall of the frame 2 is also provided with two support plates 23, and a rotating shaft 24 is rotatably connected between the two support plates 23. A blocking plate 25 for blocking the opening is provided on the rotating shaft 24. A torsion spring 26 is provided on the support plate 23, and the other end of the torsion spring 26 is connected to the rotating shaft 24.

[0048] With this design, when the slide gate valve 5 extends through the through-hole at the end of the frame 2, it will push open the baffle plate 25. The baffle plate 25 and the rotating shaft 24 will rotate, and eventually the baffle plate 25 will abut against the bottom of the slide gate valve 5. Figure 10-11 As shown, when the slag and water flow along the bottom surface of the slide valve 5 to the baffle plate 25, it can prevent the slag and water from flowing back towards the ash and slag bin 1. The baffle plate 25 thus plays a role in reversing the flow of water and preventing backflow.

[0049] Furthermore, when the slide gate valve 5 retracts and moves away, the torsion spring 26 can drive the baffle plate 25 to rotate and reset. At this time, the baffle plate 25 will block the end opening, which can prevent ash and slag from overflowing from the end opening.

[0050] In this embodiment, preferably, please refer to [reference needed]. Figure 3 , Figure 7 and Figure 10 The inner wall of the port 3 is provided with a track bar 27, and the bottom of the slide valve 5 slides in contact with the track bar 27.

[0051] With this design, the track bar 27 can bear part of the weight of the slide valve 5, reduce the telescopic pressure of the telescopic component 34, and reduce the friction during the sliding process of the slide valve 5, making the sliding of the slide valve 5 smoother and reducing the wear of the slide valve 5 and the port 3.

[0052] In this embodiment, preferably, please refer to [reference needed]. Figure 6 and Figure 9-10 A side cavity 28 is formed between the side baffle 7 and the side wall of the opening 3. A support plate 29 is detachably installed on the inner wall of the side cavity 28. A lead screw 30 is threaded onto the support plate 29. A bracket 31 is rotatably connected to the bottom of the lead screw 30. A roller brush 32 is rotatably mounted on the bracket 31. A slide rod 35 is provided on the bracket 31. The other end of the slide rod 35 slides through the support plate 29. The bottom outlet of the ash bin 1 is located between the two side connecting plates 13, which can prevent ash from falling into the side cavity 28.

[0053] When the slide gate valve 5 is in the extended closed state, some ash and slag are squeezed through the baffle 8 and enter the side cavity 28. Then, when the slide gate valve 5 opens and retracts, the roller brush 32 rolls. At this time, the ash and slag in the side cavity 28 will be cleaned by the roller brush 32, further reducing the gap slag entry.

[0054] Additionally, the height of the roller brush 32 can be adjusted by rotating the lead screw 30 to accommodate different slide gate valves 5, allowing for height adjustment according to specific circumstances.

[0055] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

[0056] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0057] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

Claims

1. A bottom opening and closing device for an ash silo, detachably installed at the bottom outlet of the ash silo (1), characterized in that, include: The frame (2) has two through openings (3) that run vertically through each other. The two through openings (3) are separated by a partition column (4). One of the through openings (3) is connected to the outlet of the ash bin (1). The slide valve (5) is telescopically disposed in the port (3), and the partition (4) has a through-hole for the slide valve (5) to pass through; A groove (9) is provided on one side of the partition column (4). A scraping mechanism (6) is detachably installed in the groove (9) for scraping and cleaning the ash and slag on the upper surface of the slide valve (5). Two side baffles (7) are respectively provided on both sides of one of the openings (3), and the lower end of the side baffles (7) is provided with a removable elastically telescopic stop (8).

2. The opening and closing device for the bottom of an ash silo according to claim 1, characterized in that, One end of the frame (2) is equipped with a telescopic component (34), the telescopic end of which extends into the port (3) and is connected to one end of the slide valve (5).

3. The opening and closing device for the bottom of an ash silo according to claim 1, characterized in that, The scraping mechanism (6) includes: Mounting bracket (61) is connected to the inner wall of the groove (9). A screw (62) is threaded onto the mounting bracket (61). A transition plate (63) is rotatably connected to the bottom of the screw (62). A telescopic rod (65) is provided between the mounting bracket (61) and the transition plate (63). The scraper (64) is elastically telescopically disposed below the adapter plate (63), and the scraper (64) has an inclined surface on the side facing the inner wall of the groove (9).

4. The opening and closing device for the bottom of an ash silo according to claim 3, characterized in that, The adapter plate (63) has multiple inner cavities (10) inside. The inner wall of the inner cavity (10) is slidably connected to a connecting column (11) connected to the scraper (64). A first elastic element (12) is provided between the top wall of the inner cavity (10) and the connecting column (11).

5. The opening and closing device for the bottom of an ash silo according to claim 1, characterized in that, It also includes a side connecting plate (13) that can be detachably installed at the bottom of the side baffle (7). The side connecting plate (13) has multiple hidden cavities (14) inside. The stop block (8) is slidably connected in the hidden cavity (14), and a second elastic element (15) is provided between the upper end of the stop block (8) and the top wall of the hidden cavity (14).

6. The opening and closing device for the bottom of an ash silo according to claim 5, characterized in that, The bottom of the side baffle (7) is provided with a plurality of insertion holes (16), and the side wall of the side baffle (7) is provided with a plurality of limiting holes (17) that communicate with each of the insertion holes (16). The top of the side connecting plate (13) is provided with a plug (18) that is adapted to the insertion hole (16), and the plug (18) is provided with a retractable limiting block (19) that is adapted to the limiting hole (17).

7. The opening and closing device for the bottom of an ash silo according to claim 6, characterized in that, The insert (18) has an inner cavity (20) that is slidably connected to the limiting block (19), and a third elastic element (21) is provided between the inner wall of the inner cavity (20) and the limiting block (19).

8. The opening and closing device for the bottom of an ash silo according to claim 1, characterized in that, The outer end of the frame (2) is detachably equipped with a collection trough (22). The frame (2) is also provided with an opening at one end of the collection trough (22) for the insertion valve (5) to pass through. The bottom of the collection trough (22) is provided with a drain outlet (33), and a filter screen is installed in the drain outlet (33).

9. The opening and closing device for the bottom of an ash silo according to claim 8, characterized in that, The outer wall of the frame (2) is also provided with two support plates (23), and a rotating shaft (24) is rotatably connected between the two support plates (23). A blocking plate (25) for blocking the opening is provided on the rotating shaft (24). The support plate (23) is provided with a torsion spring (26), and the other end of the torsion spring (26) is connected to the rotating shaft (24).

10. The opening and closing device for the bottom of an ash silo according to claim 1, characterized in that, The inner wall of the opening (3) is provided with a track bar (27), and the bottom of the slide valve (5) slides in contact with the track bar (27).

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