Ash silo lime jamming dredging device

Abstract

This utility model relates to the field of ash storage silo technology, specifically a lime jamming and unblocking device for an ash storage silo. It includes a silo and an air storage tank. An ash hopper is fixedly connected to the lower end of the silo. A buffer plate is detachably connected to the outer surface of the ash hopper. An air hammer is installed on the other side of the buffer plate. A lifting ring is installed on the outer surface of the ash hopper, near the silo and away from the buffer plate. This lime jamming and unblocking device, through the coordinated arrangement of the ash hopper, buffer plate, and air hammer, allows the air hammer to apply force multiple times in a short period during material discharge, generating a strong and concentrated impact force. This powerful impact instantly breaks down the large-particle lime accumulation structure, restoring smooth material discharge. It can quickly respond to and handle both minor blockages and sudden severe blockages, ensuring efficient operation of the production line. Furthermore, by installing the air hammer on the outer surface of the ash hopper, it can precisely target high-incidence areas of blockage, achieving targeted resolution of the blockage.

Description

Technical Field

[0001] This utility model relates to the field of ash storage silo technology, specifically to a device for clearing lime jams in ash storage silos. Background Technology

[0002] Limestone's main component is calcium carbonate. Lime and limestone are raw materials widely used in building materials and industry. Limestone can be directly processed into stone and burned into quicklime. Quicklime absorbs moisture or is hydrated to become slaked lime. The main component of slaked lime is calcium hydroxide. Slaked lime is mixed into lime slurry, lime paste, etc., and used as coating materials and brick and tile adhesives. The most important chemical property of limestone is that it decomposes into calcium oxide and carbon dioxide at high temperatures. In addition, it has some other chemical properties. Lime storage silos are special equipment used to store lime materials. Lime storage silos can temporarily store lime or hydrated lime to provide a continuous and stable material supply for subsequent production processes. Lime materials have a specific angle of repose. When piled up in the silo, large lime particles continue to settle due to gravity. Due to the friction between particles, they restrain each other. In addition, the mutual compression caused by multiple layers of stacking gradually accumulates and shifts near the discharge port, eventually forming a blockage state of aggregation and bridging, blocking the normal flow of materials. Therefore, it is necessary to clear the blockage.

[0003] However, existing technologies have the following problems in practical use;

[0004] When lime gets stuck, existing equipment generally uses manual unblocking or mechanical vibration of the silo. Manual unblocking requires workers to use tools to knock on the silo to generate vibration and clear the blockage. This method is extremely inefficient, labor-intensive, and carries the risk of limestone falling and injuring people, as well as the hazard of lime splashing. Mechanical vibration of the silo, on the other hand, results in energy dispersion and significant loss during use, and cannot focus on the blockage at the discharge port. It can only handle minor blockages and is ineffective for blockages that are concentrated or bridging, which can easily lead to frequent production interruptions. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To overcome the aforementioned deficiencies of the prior art, this utility model provides a lime silo blockage clearing device, which solves the problem mentioned in the background art that existing equipment generally uses manual clearing or mechanical vibration of the silo body when lime is blocked. When clearing manually, workers need to use tools to knock on the silo body to generate vibration and clear the blocked lime. This method is extremely inefficient, labor-intensive, and carries the risk of lime falling and injuring people, as well as the hazard of lime splashing. As for mechanical vibration of the silo body, during use, energy is dispersed and severely lost, and it cannot focus on the blockage position of the discharge port. It can only deal with minor blockages and is ineffective for blockages that are agglomerated or bridged, which can easily lead to frequent production interruptions.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a lime storage bin clearing device, comprising a bin and an air storage tank. A hopper is fixedly connected to the lower end of the bin. A buffer plate is detachably connected to the outer surface of the hopper. An air hammer is installed on the other side of the buffer plate. A lifting ring is installed on the outer surface of the hopper, near the bin and away from the buffer plate. A connecting rod is clamped to the inner wall of the lifting ring. The other end of the connecting rod is detachably connected to the outer surface of the air hammer. An air source pipe is detachably connected to the other end of the air hammer. The other end of the air source pipe is connected to a flange on one side of the air storage tank.

[0009] Preferably, a feed inlet is provided in the middle of the upper end of the hopper, and a sealing cover is detachably connected to the upper end of the feed inlet. A sealing gasket is provided on the end face of the feed inlet and the sealing cover that are in contact with each other.

[0010] Preferably, a support frame is fixedly connected to the lower end of the hopper, and a stress plate is provided at each of the four corners of the lower end of the support frame.

[0011] Preferably, an air outlet valve is provided on the side of the air source pipe closest to the air storage tank and furthest from the air hammer.

[0012] Preferably, a ladder is provided on one side of the hopper, an exhaust pipe is provided on the upper end of the hopper near the feed inlet, and a control valve is provided on the outer surface of the other end of the exhaust pipe.

[0013] Preferably, an air inlet pipe is provided on the other side of the air storage tank, an air inlet valve is provided on the outer surface of the air inlet pipe, and a pressure gauge is provided on the outer surface of the air storage tank near the air inlet pipe.

[0014] Preferably, the lower end of the ash hopper is provided with a discharge port, and the lower end of the discharge port is detachably connected to a gate assembly.

[0015] Preferably, the gate assembly includes a limiting plate and a drive motor. The upper end of the limiting plate has a limiting groove, and a gate is slidably connected to the inner wall of the limiting groove. A drive shaft is provided inside the limiting groove. A connecting block is fixedly connected to the upper end of the gate. The outer surface of the drive shaft is threadedly connected to the inner wall of the connecting block. A fixing plate is detachably connected to the side of the limiting plate near the limiting groove. The other side of the fixing plate is detachably connected to one end of the drive motor. The output end of the drive motor passes through one side of the fixing plate and is engaged inside the drive shaft.

[0016] (III) Beneficial Effects

[0017] This utility model provides a device for clearing lime jams in an ash storage silo, which has the following beneficial effects:

[0018] This lime silo unblocking device, through the coordinated arrangement of a hopper, buffer plate, and air hammer, utilizes the high-frequency impact capability of the air hammer to apply force multiple times in a short period during material discharge. The resulting powerful and concentrated impact instantly breaks down the large-particle lime accumulation structure, restoring smooth material flow. It can quickly respond to and handle both minor and sudden severe blockages, ensuring efficient production line operation. Furthermore, by installing the air hammer on the outer surface of the hopper, it can precisely target high-risk areas for blockages, achieving targeted dissolution of the blockage point. The shockwave also propagates radially within the hopper, simultaneously breaking down the lime accumulation structure in surrounding areas and rapidly restoring fluidity. This avoids the inefficiency and time-consuming nature of manual unblocking, which is unsuitable for continuous production. This design addresses the issue of significant damage to the lime silo body. It also avoids the problems associated with mechanical vibration of the silo, such as high energy loss due to dispersion, and the difficulty in effectively removing stubborn blockages caused by the dense accumulation and bridging of large lime particles at the discharge port. The buffer plate absorbs some of the impact force generated by the air hammer, preventing the high-frequency, powerful impact from directly affecting the silo and causing wear, deformation, or other damage, thus extending the silo's service life. It also optimizes the direction of impact force transmission, concentrating the air hammer's impact force on the lime-blocking areas inside the silo. The combination of the lifting ring and connecting rod allows for precise installation and positioning of the air hammer outside the silo, ensuring the impact point is aligned with the easily blocked areas inside the silo. Furthermore, it provides stable support for the air hammer during operation, guaranteeing stability during the impact process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the silo structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the air storage tank structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the pneumatic hammer structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the gate structure of this utility model.

[0024] In the diagram: 1. Silo; 2. Air tank; 3. Ash hopper; 4. Buffer plate; 5. Air hammer; 6. Lifting ring; 7. Connecting rod; 8. Air source pipe; 9. Feed inlet; 10. Sealing cover; 11. Sealing gasket; 12. Support frame; 13. Stress plate; 14. Air outlet valve; 15. Ladder; 16. Exhaust pipe; 17. Control valve; 18. Air inlet pipe; 19. Air inlet valve; 20. Pressure gauge; 21. Discharge port; 22. Gate assembly; 2201. Limit plate; 2202. Limit groove; 2203. Gate; 2204. Drive shaft; 2205. Connecting block; 2206. Fixing plate; 2207. Drive motor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Example 1;

[0027] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a technical solution: a lime jamming and unblocking device for ash storage silos. This device is mainly used for precise unblocking of lime jamming points in ash storage silos. It includes a silo 1 and an air storage tank 2. A hopper 3 is fixedly connected to the lower end of the silo 1. A buffer plate 4 is detachably connected to the outer surface of the hopper 3. An air hammer 5 is provided on the other side of the buffer plate 4. A lifting ring 6 is provided on the outer surface of the hopper 3 near the silo 1 and away from the buffer plate 4. A connecting rod is engaged with the inner wall of the lifting ring 6. 7. The other end of the connecting rod 7 is detachably connected to the outer surface of the air hammer 5. The other end of the air hammer 5 is detachably connected to the air source pipe 8. The other end of the air source pipe 8 is connected to a flange on one side of the air storage tank 2. An air outlet valve 14 is provided on the side of the air source pipe 8 near the air storage tank 2 and away from the air hammer 5. An air inlet pipe 18 is provided on the other side of the air storage tank 2. An air inlet valve 19 is provided on the outer surface of the air inlet pipe 18. A pressure gauge 20 is provided on the side of the outer surface of the air storage tank 2 near the air inlet pipe 18.

[0028] Through the above technical solution, during use, the air storage tank 2 can provide a stable and continuous air source power to the air hammer 5. At the same time, the air source pipe 8, as a compressed gas flow channel, can transport the gas inside the air storage tank 2 to the air hammer 5. The air outlet valve 14 set on one side of the air source pipe 8 can control the flow of compressed air from the air storage tank 2 to the air hammer 5 and the flow rate, so as to flexibly adjust the air supply according to the actual lime blockage and the working needs of the air hammer 5. Meanwhile, the air inlet pipe 18 on the side of the air storage tank 2 can transport the compressed gas generated by the external compressor to the air storage tank 2. The air inlet valve 19 on the outer surface of the air inlet pipe 18 can control the flow rate and opening and closing of the compressed air entering the air storage tank 2. The air intake can be adjusted according to the pressure inside the air storage tank 2 and the needs of the gas-using equipment. The pressure gauge 20 set on the outer surface of the air storage tank 2 can intuitively display the real-time pressure value inside the air storage tank 2, so as to facilitate the operator to monitor pressure changes, ensure the safe operation of the air storage tank 2, and avoid the air hammer 5 from being affected by excessively high or low pressure.

[0029] Please see Figure 1 , Figure 2 and Figure 3 A feed inlet 9 is provided in the middle of the upper end of the silo 1. A sealing cover 10 is detachably connected to the upper end of the feed inlet 9. A sealing gasket 11 is provided on the end face of the feed inlet 9 and the sealing cover 10 that are in contact with each other. A support frame 12 is fixedly connected to the lower end of the silo 1. A stress plate 13 is provided at each of the four corners of the lower end of the support frame 12. A ladder 15 is provided on one side of the silo 1. An exhaust pipe 16 is provided on the upper end of the silo 1 near the feed inlet 9. A control valve 17 is provided on the outer surface of the other end of the exhaust pipe 16.

[0030] Through the above technical solution, in use, the feed inlet 9 serves as the entrance for lime to enter the silo 1. After the lime is fed, the sealing cover 10 is closed. At the same time, the sealing gasket 11 is set on the end face where the feed inlet 9 and the sealing cover 10 contact each other. The elastic deformation of the sealing gasket 11 can effectively prevent external air, moisture and impurities from entering the silo 1, avoiding the lime from getting damp and clumping, affecting subsequent use and smooth feeding. In addition, with the help of the ladder 15 on the side of the silo 1, a passage to the top of the silo 1 can be provided for the staff, making it convenient for the staff to inspect, maintain and operate the feed inlet 9, exhaust pipe 16 and related equipment at the top of the silo 1, ensuring the safety and convenience of the staff when working at height. At the same time, the exhaust pipe 16 can discharge other gases generated during the storage of the silo 1 due to chemical reactions or external temperature changes. The control valve 17 can control the opening and closing of the exhaust pipe 16, and flexibly adjust the timing and volume of exhaust according to the gas conditions in the silo 1 and the working environment requirements.

[0031] Example 2;

[0032] Please see Figure 2 and Figure 5 This utility model provides a technical solution based on Embodiment 1. The lower end of the ash hopper 3 is provided with a discharge port 21. The lower end of the discharge port 21 is detachably connected to a gate assembly 22. The gate assembly 22 includes a limiting plate 2201 and a drive motor 2207. The upper end of the limiting plate 2201 is provided with a limiting groove 2202. The inner wall of the limiting groove 2202 is slidably connected to a gate 2203. The inside of the limiting groove 2202 is provided with a transmission shaft 2204. The upper end of the gate 2203 is fixedly connected to a connecting block 2205. The outer surface of the transmission shaft 2204 is threadedly connected to the inner wall of the connecting block 2205. The side of the limiting plate 2201 near the limiting groove 2202 is detachably connected to a fixing plate 2206. The other side of the fixing plate 2206 is detachably connected to one end of the drive motor 2207. The output end of the drive motor 2207 passes through one side of the fixing plate 2206 and is engaged inside the transmission shaft 2204.

[0033] Through the above technical solution, the discharge port 21 can serve as the final outlet of the lime discharge silo 1. When material needs to be discharged, the drive force generated by the drive motor 2207 drives the transmission shaft 2204 to rotate. When the transmission shaft 2204 rotates, it can drive the connecting block 2205 with the threaded connection on the outer surface to make linear displacement. When the connecting block 2205 moves, it drives the gate 2203 rigidly connected to it to slide inside the limiting groove 2202. The limiting groove 2202 can provide the gate 2203 with the activity space and installation space. The shape of the gate 2203 matches the cross section of the discharge port 21, and its edge can be set as serrated. When closed, it can break up slight lumps. When the gate 2203 slides inside the limiting groove 2202, it can block or open the material channel of the discharge port 21, thereby controlling the discharge of lime.

[0034] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power via standard interfaces. The main controller can be any commercially available known device. There are no special restrictions on the specific models of the electrical components; any commercially available ordinary products can be selected, as long as they meet the usage requirements of this utility model.

[0035] In this invention, the working steps of the device are as follows:

[0036] First, start the drive motor 2207 and adjust the opening degree of the gate 2203 according to the material feeding requirements, so that the lime enters the subsequent conveying equipment through the discharge port 21. When the flow rate of the discharge port 21 is significantly reduced, it indicates that lime blockage has occurred. At this time, open the air outlet valve 14, and compressed air enters the air hammer 5 through the air source pipe 8, so that it generates a pulse impact force. This impact force is transmitted to the wall of the ash hopper 3 through the buffer plate 4, precisely focusing on the blockage area near the ash hopper 3, instantly destroying the lime bridging structure. During the impact of the air hammer 5, the buffer plate 4 absorbs excess energy simultaneously to prevent damage to the ash hopper 3. After the flow rate of the discharge port 21 is observed to recover and the blockage is confirmed to be cleared, close the air outlet valve 14 and stop the air hammer 5 from working. If the blockage is not cleared, the air supply pressure can be increased by adjusting the air outlet valve 14 or the impact frequency of the air hammer 5 can be increased. After the material feeding operation is completed, turn off the drive motor 2207, so that the gate 2203 completely closes the discharge port 21, and close the air outlet valve 14 to stop the air supply to the air hammer 5.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for unblocking a clogged ash silo lime, comprising a silo (1) and an air tank (2), characterized in that: The lower end of the silo (1) is fixedly connected to a hopper (3). A buffer plate (4) is detachably connected to the outer surface of the hopper (3). An air hammer (5) is provided on the other side of the buffer plate (4). A lifting ring (6) is provided on the side of the outer surface of the hopper (3) that is close to the silo (1) and away from the buffer plate (4). A connecting rod (7) is snapped into the inner wall of the lifting ring (6). The other end of the connecting rod (7) is detachably connected to the outer surface of the air hammer (5). An air source pipe (8) is detachably connected to the other end of the air hammer (5). The other end of the air source pipe (8) is connected to a flange on one side of the air storage tank (2).

2. The ash silo lime jam unblocking device according to claim 1, characterized in that: The feed inlet (9) is provided in the middle of the upper end of the hopper (1). A sealing cover (10) is detachably connected to the upper end of the feed inlet (9). A sealing gasket (11) is provided on the end face of the feed inlet (9) and the sealing cover (10) that are in contact with each other.

3. The ash silo lime jam unblocking device of claim 1, wherein: The lower end of the hopper (1) is fixedly connected to a support frame (12), and each of the four corners of the lower end of the support frame (12) is provided with a force-bearing plate (13).

4. The ash silo lime jam unblocking device of claim 1, wherein: An air outlet valve (14) is provided on the side of the air source pipe (8) that is close to the air storage tank (2) and away from the air hammer (5).

5. The ash silo lime jam unblocking device of claim 1, wherein: A ladder (15) is provided on one side of the silo (1), and an exhaust pipe (16) is provided on the upper end of the silo (1) near the feed inlet (9). A control valve (17) is provided on the outer surface of the other end of the exhaust pipe (16).

6. The ash silo lime jam unblocking device of claim 1, wherein: An air inlet pipe (18) is provided on the other side of the air storage tank (2). An air inlet valve (19) is provided on the outer surface of the air inlet pipe (18). A pressure gauge (20) is provided on the outer surface of the air storage tank (2) near the air inlet pipe (18).

7. The ash silo lime jam unblocking device of claim 1, wherein: The lower end of the ash hopper (3) is provided with a discharge port (21), and the lower end of the discharge port (21) is detachably connected to a gate assembly (22).

8. The ash silo lime jam unblocking device of claim 7, wherein: The gate assembly (22) includes a limiting plate (2201) and a drive motor (2207). A limiting groove (2202) is formed at the upper end of the limiting plate (2201). A gate (2203) is slidably connected to the inner wall of the limiting groove (2202). A drive shaft (2204) is disposed inside the limiting groove (2202). A connecting block (2205) is fixedly connected to the upper end of the gate (2203). The drive shaft (2207)... 4) The outer surface is threaded to the inner wall of the connecting block (2205). The limiting plate (2201) is detachably connected to a fixing plate (2206) on one side near the limiting groove (2202). The other side of the fixing plate (2206) is detachably connected to one end of the drive motor (2207). The output end of the drive motor (2207) passes through one side of the fixing plate (2206) and is snapped into the inside of the transmission shaft (2204).

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