A coal bunker unloading and blockage clearing device

Abstract

The utility model relates to coal feeder clearing equipment technical field discloses a coal bunker unloading clearing device, including upper cone, the outer wall of upper cone is connected with lower cylinder through the support column, is provided with the connecting seat between lower cylinder and upper cone, the connecting seat is connected with the gear ring through the drive group, the inner wall both sides of gear ring are provided with the mount pad, the mount pad inner wall is connected with the scraper through the installation group, to be used for rotating through the drive group and is driven gear ring and scraper and realizes clearing and blocking, the inner wall fixed connection of gear ring has the fixed link, and the middle end of fixed link is provided with the plug-in seat. In the utility model, through the scraper detachable design simplifies maintenance process, flexible adaptation different working conditions to reduce the use cost, and simultaneously with the synergies of accurate arch breaking and peripheral wall clearing and blocking, realize dead angle free efficient clearing and blocking, avoid secondary jam, guarantee coal bunker unloading continuous stability, significantly improve the practicality and operating efficiency of device.

Description

Technical Field

[0001] This utility model relates to the technical field of coal feeder unblocking equipment, and in particular to a coal bunker unblocking device. Background Technology

[0002] Coal bunker unloading and unblocking devices are specialized equipment used in coal mines, power plants, and other coal-related industries. Their core function is to solve material blockage problems such as caking, sticking to walls, and arching that occur during coal storage or unloading due to factors like moisture, compression, and stickiness. Through targeted operation, they break down the material blockage structure, remove material stuck to the bunker walls, and open up a smooth unloading channel. This prevents production interruptions caused by blockages, reduces the safety risks and labor intensity of manual unblocking, ensures the continuous and stable operation of the coal bunker unloading system, and provides reliable material supply support for subsequent production stages.

[0003] Existing coal bunker unblocking devices have many prominent problems in practical applications. In terms of maintenance, the scrapers of most devices wear out quickly due to direct contact with the wall surface, and replacing or disassembling existing scrapers is inconvenient. Regarding unblocking effectiveness, pneumatic devices such as air cannons have a single point of action, only able to open local channels to form "rat holes," while surrounding materials are prone to caking due to impact stress, and are almost ineffective against moist, sticky materials. Vibration-type devices are energy-intensive and noisy, and long-term use can cause fatigue damage to the bunker body; uneven distribution of vibration energy also leads to incomplete unblocking. Rotary unblocking machines only break and scrape the material on the inner wall, but in severely clumped areas of coal mines, clumping often occurs in the central part, preventing material from being discharged. Utility Model Content

[0004] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide a coal bunker unblocking device that effectively solves the problems of inconvenient scraper replacement and disassembly, rapid wear, and poor overall unblocking effect due to the difficulty of removing central clumps by rotary unblocking devices, thus achieving a better unblocking effect.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a coal bunker unloading and unblocking device, comprising an upper cone, a lower cylinder connected to the outer wall of the upper cone via a supporting column, a connecting seat between the lower cylinder and the upper cone, a toothed ring connected to the connecting seat via a drive assembly, mounting seats on both sides of the inner wall of the toothed ring, and a scraper connected to the inner wall of the mounting seat via a mounting assembly, for driving the toothed ring and scraper to rotate via the drive assembly to achieve unblocking; a fixing rod fixedly connected to the inner wall of the toothed ring, a plug-in seat provided at the middle end of the fixing rod, a top cone connected to the inner wall of the plug-in seat via a limiting assembly, and multiple arch-breaking plates provided on the outer wall of the top cone.

[0006] Furthermore, the drive assembly includes a motor mounted on the bottom side of the outer end of the connector. The motor drive end is connected to the gear ring through a main gear set inside the connector, so as to provide power through the motor and drive the gear ring to rotate via the main gear.

[0007] The inner diameter of the toothed ring is the same as the inner diameter of the bottom end of the upper cone, so that the material in the upper cone can pass through the toothed ring and enter the lower cylinder without obstruction.

[0008] The mounting assembly includes a slot at the bottom of the scraper. When the scraper is inserted into the inner wall of the mounting base, it is secured to the inner wall by a retaining plate. The retaining plate is fixed to the bottom of the mounting base by bolts, so as to limit and fix the scraper in the Y-axis direction through the cooperation of the slot and the retaining plate.

[0009] The limiting assembly includes a cross-shaped insert block disposed on the bottom side of the top cone. A limiting rod is fixedly connected to the bottom of the cross-shaped insert block. The limiting rod is fixed to the bottom side of the insertion seat through a positioning ring, so as to limit the top cone in the Y-axis direction through the cooperation of the cross-shaped insert block, the limiting rod and the positioning ring.

[0010] The top side of the connector has a cross slot that matches the cross plug, so as to achieve precise positioning and connection between the top cone and the connector through the insertion and engagement of the cross slot and the cross plug.

[0011] A sealing sleeve is fixedly connected to the bottom end of the scraper. When the scraper is inserted into the inside of the mounting base, the inner wall of the sealing sleeve is fitted onto the top of the mounting base to seal the connection gap between the scraper and the mounting base and prevent coal dust from entering.

[0012] Multiple arch-breaking plates are evenly distributed circumferentially along the outer wall of the top cone to break up the arches in the center of the clumped material in the coal bunker as the top cone rotates with the toothed ring.

[0013] The beneficial effects of this utility model are: it simplifies the equipment maintenance process, allowing for scraper replacement or repair without complex disassembly and assembly of the entire device, effectively shortening downtime for maintenance and ensuring the continuity of coal bunker feeding. Simultaneously, it allows for flexible replacement of appropriate scraper types based on the actual working conditions such as the hardness and moisture content of the material in the coal bunker, avoiding the problem of insufficient adaptability of a single scraper, reducing unnecessary component wear, lowering long-term operating costs, and improving the adaptability and practicality of the device.

[0014] It achieves a more efficient unblocking effect, precisely targeting key areas of clumped materials to quickly break up the material's arch structure and loosen it. This avoids secondary blockages caused by localized residual materials in traditional unblocking methods. At the same time, the arch-breaking action works in synergy with the surrounding wall unblocking, achieving all-round, no-dead-angle unblocking. This significantly improves material discharge efficiency, reduces the wear and tear on equipment caused by material accumulation, and ensures the stable operation of the coal bunker unloading system. It is especially suitable for coal mine unloading scenarios with severe clumping. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the upper cone structure in this utility model.

[0017] Figure 3 This is a schematic diagram of the connector structure in this utility model.

[0018] Figure 4 This is a schematic diagram of the mounting base in this utility model.

[0019] Appendix Figure 1-4 In the middle, 1. Upper cone; 2. Lower cylinder; 3. Support column; 4. Connecting seat; 5. Motor; 6. Gear ring; 7. Mounting seat; 8. Scraper; 9. Sealing sleeve; 10. Slot; 11. Clamping plate; 12. Fixing rod; 13. Insertion seat; 14. Cross insert; 15. Limiting rod; 16. Positioning ring; 17. Top cone; 18. Arch breaking plate. Detailed Implementation

[0020] 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.

[0021] See attached document Figure 1-4 This utility model provides an embodiment of a coal bunker unloading and unblocking device, including an upper cone 1. The outer wall of the upper cone 1 is connected to a lower cylinder 2 via a support column 3, which is used to securely assemble the upper cone 1 and the lower cylinder 2 and form a continuous material unloading channel, ensuring a smooth basic path for material conveying. A connecting seat 4 is provided between the lower cylinder 2 and the upper cone 1. The connecting seat 4 is connected to a toothed ring 6 via a drive assembly. Mounting seats 7 are provided on both sides of the inner wall of the toothed ring 6. A scraper 8 is connected to the inner wall of the mounting seat 7 via a mounting assembly, which is used to drive the toothed ring 6 and the scraper 8 to rotate synchronously through the rotational power provided by the drive assembly. During the rotation process, the scraper 8 scrapes the inner walls of the upper cone 1 and the lower cylinder 2, breaking up the material adhering to the bin wall and breaking up material arches, thus achieving efficient unblocking. At the same time, the scraper 8's close rotation with the bin wall ensures that there are no dead angles in the unblocking process. The inner wall of the toothed ring 6 is fixedly connected to a fixing rod 12, and a plug-in seat 13 is provided at the middle end of the fixing rod 12. The inner wall of the plug-in seat 13 is connected to a top cone 17 through a limit assembly. The outer wall of the top cone 17 is provided with multiple arch-breaking plates 18, which are used to achieve synchronous linkage between the plug-in seat 13 and the toothed ring 6 through the fixing rod 12. When the top cone 17 rotates with the toothed ring 6, it drives the arch-breaking plates 18 to rotate synchronously, forming an internal and external collaborative unblocking structure with the scraper 8, thereby improving the overall unblocking efficiency. The drive unit includes a motor 5 installed on the bottom side of the outer end of the connecting seat 4. The drive end of the motor 5 is connected to the gear ring 6 through the main gear set inside the connecting seat 4 to provide stable power. The power is accurately transmitted to the gear ring 6 through the meshing transmission of the main gear and the gear ring 6, ensuring sufficient torque and stable speed during the rotation of the gear ring 6. This is suitable for lumpy materials of different hardness in the coal bunker. At the same time, the gear transmission structure has high transmission efficiency and low wear, extending the service life of the drive unit. The inner diameter of the gear ring 6 is consistent with the inner diameter of the bottom end of the upper cone 1, so that the material in the upper cone 1 can pass through the gear ring 6 and enter the lower cylinder 2 without obstruction. This avoids the formation of material stagnation steps due to inconsistent inner diameters, reduces the risk of material accumulation and blockage, and ensures the material feeding speed, improving the continuity of coal bunker feeding. The mounting assembly includes a slot 10 at the bottom of the scraper 8. When the scraper 8 is inserted into the inner wall of the mounting base 7, it is secured to the inner wall by a retaining plate 11. The retaining plate 11 is fixed to the bottom of the mounting base 7 by bolts, which is used to limit and fix the scraper 8 in the Y-axis direction through the cooperation of the slot 10 and the retaining plate 11, ensuring that the scraper 8 does not have axial displacement when it rotates with the toothed ring 6, thus ensuring scraping stability. At the same time, the bolted retaining plate 11 is easy to disassemble and assemble, and can be quickly replaced when the scraper 8 is worn, reducing maintenance difficulty and cost. The limiting assembly includes a cross-shaped insert 14 set on the bottom side of the top cone 17. The bottom of the insert block 14 is fixedly connected to a limiting rod 15. The limiting rod 15 is fixed to the bottom side of the insert seat 13 through a positioning ring 16. It is used to limit the top cone 17 in the Y-axis direction through the cooperation of the cross insert block 14, the limiting rod 15 and the positioning ring 16. At the same time, the cooperation between the cross insert block 14 and the cross slot can limit the circumferential rotation of the top cone 17, ensuring that the top cone 17 and the toothed ring 6 rotate synchronously, avoiding the failure of the arch-breaking plate 18 to clear blockage due to the relative rotation of the top cone 17. The cooperation between the positioning ring 16 and the limiting rod 15 further improves the coaxiality of the top cone 17 after installation and reduces rotational shaking. Reference Figures 2-4The top side of the connector 13 has a cross slot that matches the cross-shaped insert 14. This slot allows for precise positioning and connection between the top cone 17 and the connector 13, ensuring that the central axis of the top cone 17 coincides with the central axis of the toothed ring 6 after installation. This prevents eccentric swaying during rotation. The cross-shaped structure also provides a large contact area and a strong connection, enabling it to withstand the impact force generated when the arch-breaking plate 18 breaks up agglomerated materials, thus improving structural stability. A sealing sleeve 9 is fixedly connected to the bottom of the scraper 8. When the scraper 8 is inserted into the mounting base 7, the inner wall of the sealing sleeve 9 is fitted over the top of the mounting base 7, sealing the scraper 8 and the mounting base 7. The connection gap prevents coal dust from entering and causing component jamming or accelerated wear, extending the service life of the installation assembly. At the same time, the sealing structure is simple and reliable, and does not affect the disassembly and maintenance of the scraper 8. Multiple arch-breaking plates 18 are evenly distributed around the outer wall of the top cone 17. When the top cone 17 rotates with the toothed ring 6, the arch-breaking plates 18 are used to precisely break the arches in the center of the lumpy material in the coal bunker. The evenly distributed arch-breaking plates 18 form a multi-point synchronous crushing effect, which quickly destroys the internal structure of the lumpy material and loosens it. Combined with the scraper 8 scraping and removing the material on the bunker wall, a dual synergistic effect of "center arch breaking + peripheral wall clearing" is formed to ensure thorough clearing and prevent residual material from lumping and blocking again.

[0022] In this embodiment, when the coal bunker unloading and unblocking device is started, the motor 5 outputs power, which is transmitted through the main gear inside the connecting seat 4 to the gear ring 6, causing the gear ring 6 to rotate stably. The gear ring 6 is fixedly connected to the plug seat 13 through the fixing rod 12, so that the top cone 17 rotates synchronously with the gear ring 6. At the same time, the mounting seat 7 on the inner wall of the gear ring 6 drives the scraper 8 to rotate together. When the top cone 17 rotates, the arch-breaking plates 18 evenly distributed on its outer wall precisely break the arches in the center of the lumpy material in the coal bunker, quickly destroying the internal structure of the lumps and making them loose. The synchronously rotating scraper 8 closely adheres to the inner wall of the upper cone 1 and the lower cylinder 2 to scrape, thoroughly removing the material adhering to the bunker wall and breaking the surrounding arched material, forming a synergistic unblocking effect of "center arch breaking + peripheral wall unblocking". During this process, the inner diameter of the toothed ring 6 is consistent with the inner diameter of the bottom end of the upper cone 1, ensuring that the loosened material passes through the toothed ring 6 and enters the lower cylinder 2 without obstruction; the installation group restricts the axial displacement of the scraper 8 through the cooperation of the slot 10 and the plate 11; the limiting group ensures the stable coaxial rotation of the top cone 17 with the help of the cross-shaped insert 14, the limiting rod 15 and the positioning ring 16; and the sealing sleeve 9 seals the gap between the scraper 8 and the mounting seat 7 to prevent coal powder from entering. All the structures cooperate with each other to achieve efficient, stable and dead-angle-free coal bunker unloading and unblocking.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A coal bunker unblocking device, characterized in that, The upper cone (1) is connected to the lower cylinder (2) via a support column (3) on its outer wall. A connecting seat (4) is provided between the lower cylinder (2) and the upper cone (1). A toothed ring (6) is connected to the connecting seat (4) via a drive group. Mounting seats (7) are provided on both sides of the inner wall of the toothed ring (6). A scraper (8) is connected to the inner wall of the mounting seat (7) via a mounting group, so as to drive the toothed ring (6) and the scraper (8) to rotate via the drive group to clear the blockage. A fixing rod (12) is fixedly connected to the inner wall of the toothed ring (6). A plug-in seat (13) is provided at the middle end of the fixing rod (12). A top cone (17) is connected to the inner wall of the plug-in seat (13) via a limiting group. Multiple arch-breaking plates (18) are provided on the outer wall of the top cone (17).

2. The coal bunker unblocking device according to claim 1, characterized in that: The drive unit includes a motor (5) installed on the bottom side of the outer end of the connecting seat (4). The drive end of the motor (5) is connected to the gear ring (6) through the main gear set inside the connecting seat (4) so ​​as to provide power through the motor (5) and drive the gear ring (6) to rotate through the main gear.

3. The coal bunker unloading and unblocking device according to claim 1, characterized in that: The inner diameter of the toothed ring (6) is the same as the inner diameter of the bottom end of the upper cone (1) so that the material in the upper cone (1) can pass through the toothed ring (6) and enter the lower cylinder (2) without obstruction.

4. The coal bunker unblocking device according to claim 1, characterized in that: The mounting assembly includes a slot (10) at the bottom of the scraper (8). When the scraper (8) is inserted into the inner wall of the mounting base (7), it is secured to the inner wall by a clamping plate (11). The clamping plate (11) is fixed to the bottom of the mounting base (7) by bolts, so as to limit and fix the scraper (8) in the Y-axis direction by the cooperation of the slot (10) and the clamping plate (11).

5. The coal bunker unloading and unblocking device according to claim 1, characterized in that: The limiting assembly includes a cross-shaped insert (14) disposed on the bottom side of the top cone (17). A limiting rod (15) is fixedly connected to the bottom of the cross-shaped insert (14). The limiting rod (15) is fixed to the bottom side of the plug seat (13) through a positioning ring (16) to limit the top cone (17) in the Y-axis direction through the cooperation of the cross-shaped insert (14), the limiting rod (15) and the positioning ring (16).

6. The coal bunker unblocking device according to claim 1, characterized in that: The top side of the connector (13) is provided with a cross slot that is compatible with the cross plug (14) so ​​as to achieve precise positioning and connection between the top cone (17) and the connector (13) through the insertion and engagement of the cross slot and the cross plug (14).

7. The coal bunker unblocking device according to claim 1, characterized in that: A sealing sleeve (9) is fixedly connected to the bottom end of the scraper (8). When the scraper (8) is inserted into the inside of the mounting base (7), the inner wall of the sealing sleeve (9) is fitted onto the top of the mounting base (7) to seal the connection gap between the scraper (8) and the mounting base (7) through the sealing sleeve (9) to prevent coal dust from entering.

8. A coal bunker unblocking device according to claim 1, characterized in that: Multiple arch-breaking plates (18) are evenly distributed along the outer circumference of the top cone (17) to break the arches of the lumpy material in the coal bunker as the top cone (17) rotates with the toothed ring (6).

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