Online heat fluidizing air bridge breaking device for fly ash bin

Abstract

The utility model discloses a fly ash bin on-line heat fluidizing air bridge breaking device which comprises a fly ash bin body, one end and the other end of the fly ash bin body are fixedly connected with hot-air blowers, one end of each hot-air blower is fixedly connected with a first pipe body, and the two first pipe bodies are fixedly connected with the same second pipe body. After being heated by the air heater, airflow is conveyed to the bottom of the fly ash bin through the first pipe body, the second pipe body, the corrugated pipe and the air tap. The hot air flow not only can loosen fly ash through disturbance, but also can soften the hard bridge which is affected with damp and caked through heat, the bridge breaking effect is improved from the two aspects of physical and thermal effects, and the problem that normal-temperature air is poor in hard caking breaking capacity is solved. The universal structure of the sleeve body and the cavity can flexibly adjust the angle of the air tap, is matched with a bolt for fixation, can adapt to bridging conditions of different areas, avoids local fluidization blind areas, realizes comprehensive coverage, achieves combination of heating and fluidization, and meets the requirement of online efficient bridge breaking.

Description

Technical Field

[0001] This utility model relates to the technical field of fly ash silos, and in particular to an online thermal fluidization air bridging device for fly ash silos. Background Technology

[0002] Fly ash silos are critical equipment for storing fly ash in industries such as coal-fired power plants and waste incineration plants. Due to their fine particles and strong adsorption properties, fly ash is prone to agglomeration during storage due to factors such as humidity and pressure, leading to material adhesion to the silo walls and bridging blockage at the discharge port, affecting normal unloading. Existing methods for breaking bridging mainly include mechanical vibration methods such as silo wall vibrators and manual unblocking methods. However, mechanical vibration is prone to fatigue damage to the silo body and has limited effectiveness in breaking bridging of hard agglomerates; manual unblocking requires machine shutdown, affecting production continuity and resulting in low efficiency.

[0003] Some existing technologies use fluidized air to break bridges, but these are mostly ambient temperature air, which can only loosen fly ash through airflow disturbance and is ineffective at breaking "hard bridges" formed by moisture-induced agglomeration. Furthermore, the nozzle layout is often unreasonable, easily creating localized fluidization blind zones, making comprehensive online bridge breaking impossible. Therefore, there is an urgent need for a device that combines heating and fluidization for efficient online bridge breaking. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an online thermal fluidization air bridging device for fly ash silos.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An online thermal fluidization air bridging device for a fly ash silo includes a fly ash silo body. A hot air blower is fixedly connected to one end and the other end of the fly ash silo body. Two first pipes are fixedly connected to one end of each of the two hot air blowers. The two first pipes are fixedly connected to the same second pipe. The second pipe is annular. Multiple corrugated pipes are fixedly connected to the second pipe. Air nozzles are fixedly connected to the multiple corrugated pipes. The fly ash silo body has multiple cavities. Sleeves are movably connected to each of the multiple cavities. The multiple sleeves are fixedly connected to corresponding air nozzles. The multiple sleeves are spherical and adapt to the corresponding cavities. Bolts are provided below each of the multiple sleeves.

[0007] Preferably, the fly ash silo body is fixedly connected to multiple rods, and the multiple rods are threadedly connected to the corresponding bolts.

[0008] Preferably, each of the plurality of bolts is fixedly connected to a rubber block, and the plurality of rubber blocks are in contact with the corresponding sleeve body.

[0009] Preferably, each of the bolts has a handle fixedly connected to its bottom.

[0010] Preferably, rubber sleeves are fixedly connected to the contact points between the plurality of cavities and the corresponding sleeves.

[0011] Preferably, the plurality of said cavities are distributed in a ring at equal intervals in the fly ash bin body.

[0012] Preferably, the plurality of cavities and the corresponding sleeves constitute a universal assembly.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Through the coordination of the fly ash bin main body, hot air blower, first pipe body, second pipe body, corrugated pipe, air nozzle, cavity, sleeve body, and bolts, the hot air blower heats the airflow, which is then delivered to the bottom of the fly ash bin through the first pipe body, second pipe body, corrugated pipe, and air nozzle. The hot airflow not only loosens the fly ash by disturbing it, but also softens the hard bridges formed by moisture-induced agglomeration with the help of heat. This improves the bridge-breaking effect from both physical loosening and thermal softening aspects, solving the problem that room temperature air has a weak ability to break hard agglomerates. At the same time, the universal structure formed by the sleeve body and the cavity body can flexibly adjust the air nozzle angle. Combined with the design of the bolts rotating and fixing at the rod body, the spray direction can be adjusted according to the bridging situation in different areas of the fly ash bin, avoiding local fluidization blind spots caused by fixed nozzle angles, achieving full coverage of the bin, and truly achieving a combination of heating and fluidization effects to meet the needs of online high-efficiency bridge breaking.

[0015] 2. Through the coordination between the set hot air blower, the first pipe body and the second pipe body, the two ends of the second pipe body are respectively connected to the first pipe body, and each of the two first pipe bodies is connected to a hot air blower. The two hot air blowers can provide hot airflow simultaneously, which flows into the second pipe body through the first pipe body. This can greatly increase the supply and delivery pressure of hot airflow, ensuring a more sufficient airflow intensity, and enhancing the disturbance and thermal softening effect on fly ash. At the same time, the dual heat source design has redundancy capability. If one of the hot air blowers temporarily fails, the other can still maintain a portion of the hot airflow output, avoiding bridge breakage due to equipment shutdown and ensuring the continuity of online operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an online thermal fluidization air bridging device for fly ash silos proposed in this utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the main body, second pipe, and bellows of the Zhongfei ash silo;

[0018] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure of the second tube, bellows, and air nozzle;

[0020] Figure 5 for Figure 3 A schematic diagram of the structure of the central air nozzle, cavity, and sleeve.

[0021] In the diagram: 1. Fly ash hopper main body; 2. Hot air blower; 3. First pipe body; 4. Second pipe body; 5. Corrugated pipe; 6. Air nozzle; 7. Cavity; 8. Sleeve body; 9. Rod body; 10. Bolt; 11. Rubber block; 12. Rubber sleeve; 13. Handle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1, referring to Figures 1 to 5 A fly ash silo online thermal fluidization air bridging device includes a fly ash silo body 1. A hot air blower 2 is fixedly connected to one end and the other end of the fly ash silo body 1. The model of the hot air blower 2 is selected according to actual working requirements. The hot air blower 2 can generate hot airflow. A first pipe body 3 is fixedly connected to one end of each of the two hot air blowers 2. The two first pipe bodies 3 are fixedly connected to the same second pipe body 4. The second pipe body 4 is annular, allowing the hot airflow to be collected and evenly distributed. Multiple corrugated pipes 5 are fixedly connected to the second pipe body 4. Air nozzles 6 are fixedly connected to each of the multiple corrugated pipes 5. The hot airflow is injected into the fly ash silo body 1 through the air nozzles 6 via the corrugated pipes 5. The fly ash silo body 1 has multiple cavities 7. Each of the multiple cavities 7 is movably connected to a sleeve 8. The multiple sleeves 8 are fixedly connected to corresponding air nozzles 6. The multiple sleeves 8 are spherical and adaptable to the corresponding cavities 7, allowing flexible adjustment of the air nozzle angle. Bolts 10 are provided below each of the multiple sleeves 8.

[0024] In this embodiment, the fly ash bin body 1 is fixedly connected with multiple rods 9, which are threadedly connected to corresponding bolts 10. Rotating the bolts 10 allows for lifting and lowering. When the bolts 10 contact the corresponding sleeves 8, the sleeves 8 can be fixed. Each bolt 10 is fixedly connected with a rubber block 11, which contacts the corresponding sleeves 8. The rubber blocks 11 increase the contact friction between the bolts 10 and the sleeves 8, further improving the fixing stability. Each bolt 10 has a handle 13 fixedly connected to its bottom, which drives the corresponding bolt 10 to rotate. Each cavity 7 has a rubber sleeve 12 fixedly connected at its contact with the corresponding sleeve 8, which reduces friction and enhances sealing. The cavities 7 are equidistantly distributed in a ring around the fly ash bin body 1, ensuring that the air nozzles 6 are fully covered and achieving efficient bridge breaking. The cavities 7 and the corresponding sleeves 8 form a universal assembly, which can adjust the direction of the air nozzles 6 accordingly.

[0025] The working principle of this embodiment is as follows: During use, both hot air blowers 2 are connected to an external power supply and control device. The airflow heated by the hot air blowers 2 is delivered through the corresponding first pipe 3. Since the two ends of the second pipe 4 are connected to the two first pipes 3 respectively, the two hot airflows converge into the second pipe 4, forming a mixed hot airflow with a more sufficient supply and more stable pressure. Then the hot airflow is guided by the corrugated pipe 5 and delivered to the bottom of the fly ash silo body 1 by the air nozzle 6. While the airflow disturbs and loosens the fly ash, the heat softens the hard bridges formed by the moisture-induced agglomeration, thus breaking the bridge blockage from both physical loosening and thermal softening aspects. During the process, the angle of the air nozzle 6 can be adjusted by the universal structure formed by the sleeve 8 and the cavity 7. After adjustment, the bolt 10 on the rotating rod 9 is rotated to make it contact and fix with the sleeve 8, ensuring that the air nozzle 6 is aligned with the area prone to bridging, avoiding local fluidization blind spots, and achieving full coverage in the silo. If one of the hot air blowers 2 temporarily fails, the other can still continuously output a portion of the hot airflow to ensure that the bridge breaking operation is not interrupted, and finally achieve the online high-efficiency bridge breaking effect of heating and fluidization.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An online thermal fluidization air bridging device for a fly ash silo, comprising a fly ash silo body (1), characterized in that, The fly ash silo body (1) is fixedly connected to a hot air blower (2) at one end and the other end. One end of each of the two hot air blowers (2) is fixedly connected to a first pipe (3). The two first pipes (3) are fixedly connected to the same second pipe (4). The second pipe (4) is annular. Multiple corrugated pipes (5) are fixedly connected to the second pipe (4). Air nozzles (6) are fixedly connected to the multiple corrugated pipes (5). The fly ash silo body (1) has multiple cavities (7). Each of the multiple cavities (7) is movably connected to a sleeve (8). Each of the multiple sleeves (8) is fixedly connected to the corresponding air nozzle (6). Each of the multiple sleeves (8) is spherical. Each of the multiple sleeves (8) is adapted to the corresponding cavity (7). Bolts (10) are provided below each of the multiple sleeves (8).

2. The online thermal fluidization air bridging device for fly ash silos according to claim 1, characterized in that, The fly ash hopper body (1) is fixedly connected to multiple rods (9), and the multiple rods (9) are threadedly connected to the corresponding bolts (10).

3. The online thermal fluidization air bridging device for fly ash silos according to claim 1, characterized in that, Each of the bolts (10) is fixedly connected to a rubber block (11), and each of the rubber blocks (11) is in contact with the corresponding sleeve (8).

4. The online thermal fluidization air bridging device for fly ash silos according to claim 1, characterized in that, Each of the bolts (10) has a handle (13) fixedly connected to its bottom.

5. The online thermal fluidization air bridging device for fly ash silos according to claim 1, characterized in that, Each of the multiple cavities (7) is fixedly connected to a rubber sleeve (12) at the contact point with the corresponding sleeve (8).

6. The online thermal fluidization air bridging device for fly ash silos according to claim 1, characterized in that, Multiple cavities (7) are distributed in a ring at equal intervals in the fly ash bin body (1).

7. The online thermal fluidization air bridging device for fly ash silos according to claim 1, characterized in that, The multiple cavities (7) and the corresponding sleeves (8) constitute a universal assembly.

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