Novel bin pump fluidizing device

Abstract

The utility model relates to the technical field of bin pump feeding, and discloses a novel bin pump fluidizing device which is characterized in that the inlet end of a communicating pipe is connected with a material stopper, the inlet end of the top of the material stopper is connected with an external compressed air conveying pipeline through a compressed air connecting pipe, and a fluidizing disc is arranged on the edge of the discharge end of the communicating pipe; the uniform distribution umbrella is arranged on one side of the fluidization disc, compressed air is introduced into the uniform fluidization distributor through the compressed air connecting pipe and the communicating pipe, compressed air is introduced into materials accumulated in the tee joint, and the compressed air is fluidized and uniformly distributed in the fluidization disc and the uniform distribution umbrella, so that the compressed air is scattered by the uniform distribution umbrella and rebounds to the fluidization disc before entering equipment; and the compressed air is distributed to the accumulated materials in the equipment through the fluidization disc, so that the larger kinetic energy is weakened, the action area of the compressed air on the materials is greatly increased, the gathered compressed air is dispersed to act on the accumulated materials, the large-area materials in the equipment are boiled and activated, and the stable conveying effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of silo pump feeding technology, specifically a novel silo pump fluidization device. Background Technology

[0002] Silo pumps, also known as silo pumps, are relatively reliable dense-phase dynamic pressure pneumatic conveying devices for conveying powdery materials under high pressure. When the material enters the pump body and fills the silo, it is vaporized to form a fluidized state, allowing the material to be fully mixed with the gas and run along the conveying pipeline. Currently, in the pneumatic conveying systems of coal-fired power plants in China, silo pumps deliver ash to the pipeline relatively slowly. Some silo pumps use straight pipe fluidization or head fluidization at the bottom. That is, a steel pipe is installed at the bottom of the pump casing for air circulation or a head cap with one-way ventilation that is about the same size as the flange is installed. The steel pipe air circulation method and the one-way ventilation head cap method are suitable for working conditions with small material volume, small particle size, and low bulk density.

[0003] However, the current feeding method is poorly adaptable to working conditions with large changes and fluctuations in materials. The capping method is even more inefficient and energy-intensive, and it requires high requirements for operation and maintenance personnel. It requires frequent adjustments to the operation mode, and maintenance personnel must also conduct on-site inspections at any time, making it difficult to achieve fully automatic operation. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a novel fluidized bed pump device that solves the problems of poor adaptability of current feeding methods to working conditions with large material variations and fluctuations, low efficiency and high energy consumption of the cap-type feeding method, high requirements for operation and maintenance personnel, frequent adjustment of operating mode, and constant on-site inspection by maintenance personnel, making it difficult to achieve fully automatic operation.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel fluidized bed pump device, comprising a pump housing, with connecting pipes connected to both sides of the pump housing, a material blocker connected to the inlet end of the connecting pipe, and the top inlet end of the material blocker connected to an external compressed air delivery pipeline via a compressed air pipe, a fluidizing plate provided at the outlet end of the connecting pipe, and a uniform distribution umbrella provided on one side of the fluidizing plate, and multiple air guide grooves equally spaced at the outlet end of the connecting pipe between the fluidizing plate and the uniform distribution umbrella;

[0008] The end of the connecting pipe is connected to a limiting plate by a thread at the edge of the fluidizing plate, and the edge of the limiting plate is connected to multiple pressure bars at equal angles. The outer horizontal section of the connecting pipe is provided with an external thread, and the connecting pipe is connected to the limiting plate and the locking nut seat respectively through its external thread.

[0009] As a preferred technical solution of the novel fluidization device for a silo pump according to this utility model, the material blocker prevents material backflow, and the edges of the fluidization disc and the uniform distribution umbrella are provided with gaps. The airflow discharged from the air guide groove is discharged through the gaps, and the fluidization disc is fixed to the edge of the silo pump housing by the limiting disc and the locking nut seat.

[0010] As a preferred technical solution of the novel fluidized bed pump device of this utility model, the inner side of the locking nut seat is provided with an annular extrusion groove, and a deformable rubber ring is embedded and connected to the inner side of the extrusion groove.

[0011] The fluidizing disc has a limiting groove on the side away from the uniformly distributed umbrella, and a rubber pad is tightly fitted to the inner side of the limiting groove.

[0012] As a preferred technical solution of the novel fluidized bed pump device of this utility model, the deformation rubber ring on the inner side of the extrusion groove is in close contact with the outer side of the pump housing through the extrusion action of the locking nut seat, and the rubber pad is in close contact with the inner side of the pump housing.

[0013] As a preferred technical solution of the novel fluidized bed pump device of this utility model, the end of the connecting pipe is connected to a connecting seat, and the inner middle of the uniformly distributed umbrella is connected to a threaded sleeve. The threaded sleeve is threadedly connected to the outside of the connecting seat, and the connecting seat and the threaded sleeve are detachably connected to a limit nut inside.

[0014] As a preferred technical solution of the novel fluidized bed pump device of this utility model, the connecting seat has a threaded hole inside, the threaded sleeve has a through hole in the middle, and the limiting nut passes through the through hole and is connected to the threaded hole.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a novel fluidization device for a silo pump, which has the following beneficial effects:

[0017] 1. Compressed air is supplied to the fluidizing distributor through the compressed air pipe and connecting pipe. Compressed air is introduced into the material accumulated in the tee, and the compressed air is fluidized and evenly distributed by the fluidizing disc and the distribution umbrella. Before entering the equipment, the compressed air is dispersed by the distribution umbrella and rebounded to the fluidizing disc, and then distributed to the material accumulated in the equipment by the fluidizing disc. This reduces the large kinetic energy and greatly increases the area of ​​action of the compressed air on the material. The concentrated compressed air acts on the accumulated material, making the material in a large area of ​​the equipment boil and active, and playing a role in stable conveying.

[0018] This keeps the material in a boiling fluidized state, preventing accumulation and clumping. It also reduces the negative effects of gravity on conveying and decreases frictional resistance between materials, thereby reducing the required conveying power and significantly reducing power consumption. It also stabilizes the conveying process, solving the problem of insufficient driving power caused by material accumulation and clumping, which leads to conveying difficulties. It maintains the stability of the conveying process and, by dispersing the compressed air into the tee, avoids concentrated air intake from disturbing the material or causing erosion and wear on the equipment.

[0019] 2. The limiting plate and locking nut seat connected to the outside of the connecting pipe facilitate the installation of the fluidizing tray inside the equipment. The pressure strip at the edge of the limiting plate ensures that the edges of the fluidizing tray experience uniform clamping force during installation, thus guaranteeing its stability. Combined with the rubber gasket at the edge of the fluidizing tray, this ensures tight contact between the edge of the tray and the inner wall of the equipment, guaranteeing a tight and stable installation. Furthermore, the deformation rubber ring at the edge of the locking nut seat further ensures tight contact between the locking nut seat and the edge of the pump housing, further guaranteeing the stability of the fluidizing tray after installation. This method facilitates convenient, quick, and stable installation of the fluidizing tray, ensuring its effective practical application.

[0020] 3. The threaded sleeve facilitates quick alignment and connection between the uniform distribution umbrella and the connecting seat at the end of the connecting pipe, making installation of the uniform distribution umbrella convenient. The limiting nut inside the connecting seat and threaded sleeve further reinforces the position of the threaded sleeve, ensuring stability and facilitating the installation and disassembly of the uniform distribution umbrella. Rotating the threaded sleeve rotates the uniform distribution umbrella, and adjusting the position between the threaded sleeve and the connecting seat allows for easy adjustment of the umbrella's position. This facilitates changing the gap between the umbrella's edge and the fluidizing disc, enabling adjustment and control of the fluidizing ventilation rate during air output, allowing for adaptive adjustments based on actual needs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0023] Figure 3 This is a cross-sectional view of the present invention.

[0024] Figure 4 This is a schematic diagram of the structure of the fluidizing disc of this utility model.

[0025] Figure 5 This is a structural schematic diagram of the locking nut seat of this utility model.

[0026] In the diagram: 1. Pump housing; 2. Connecting pipe; 3. Material stopper; 4. Compressed air connection pipe; 5. Fluidizing disc; 6. Distributor umbrella; 7. Air guide groove; 8. Limiting disc; 9. Locking nut seat; 10. Extrusion groove; 11. Deformation rubber ring; 12. Limiting fitting groove; 13. Rubber pad; 14. Pressure strip; 15. Connecting seat; 16. Threaded sleeve; 17. Limiting nut; 18. External thread. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0028] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0029] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Example

[0031] Please see Figure 1-5 The present invention provides the following technical solution: a novel fluidized bed pump device, comprising a pump housing 1, with connecting pipes 2 connected to both sides of the pump housing 1, and a material blocker 3 connected to the inlet end of the connecting pipe 2. The material blocker 3 prevents material backflow. The material blocker 3 is designed to allow material to remain at the rear end of the material blocker 3 after breaking through the fluidizing distributor, thus preventing backflow. The top inlet end of the material blocker 3 is connected to an external compressed air conveying pipeline through a compressed air pipe 4. A fluidizing plate 5 is provided at the outlet end of the connecting pipe 2, and a distribution umbrella 6 is provided on one side of the fluidizing plate 5. Multiple air guide grooves 7 are provided at equal angles at the outlet end of the connecting pipe 2 between the fluidizing plate 5 and the distribution umbrella 6.

[0032] The end of the connecting pipe 2 is connected to the limiting plate 8 by a thread at the edge of the fluidizing plate 5. The edge of the limiting plate 8 is connected to multiple pressure bars 14 at equal angles. The outer horizontal section of the connecting pipe 2 is provided with an external thread 18. The connecting pipe 2 is connected to the limiting plate 8 and the locking nut seat 9 through the external thread 18. There is a gap between the edges of the fluidizing plate 5 and the uniform distribution umbrella 6. The airflow discharged from the air guide groove 7 is discharged through the gap. The fluidizing plate 5 is fixed to the edge of the silo pump housing 1 by the limiting plate 8 and the locking nut seat 9. This will cause the compressed air to be dispersed by the uniform distribution umbrella 6 and rebound to the fluidizing plate 5 before entering the equipment. Then, the fluidizing plate 5 will distribute it to the material accumulated in the equipment. This will reduce the large kinetic energy and greatly increase the area of ​​action of the compressed air on the material. This will disperse the accumulated compressed air on the accumulated material, making the material in a large area of ​​the equipment boil and active, and playing a role in stable conveying.

[0033] The inner side of the locking nut seat 9 is provided with an annular extrusion groove 10, and a deformable rubber ring 11 is embedded and connected to the inner side of the extrusion groove 10.

[0034] A limiting groove 12 is provided on the side of the fluidizing plate 5 away from the uniform distribution umbrella 6, and a rubber pad 13 is tightly connected to the inner side of the limiting groove 12. The deformation rubber ring 11 on the inner side of the extrusion groove 10 is in close contact with the outer side of the silo pump housing 1 through the extrusion action of the locking nut seat 9. The rubber pad 13 is in close contact with the inner side of the silo pump housing 1, so that the edge of the fluidizing plate 5 is in close contact with the inner wall of the equipment, thereby ensuring the tightness and stability of the fluidizing plate 5 installation. At the same time, the deformation rubber ring 11 on the edge of the locking nut seat 9 is used to further ensure the tightness of the contact between the locking nut seat 9 and the edge of the silo pump housing 1.

[0035] A connecting seat 15 is connected to the end of the connecting pipe 2. A threaded sleeve 16 is connected to the inner middle of the uniformly distributed umbrella 6. The threaded sleeve 16 is threaded to the outside of the connecting seat 15. A limiting nut 17 is detachably connected inside the connecting seat 15 and the threaded sleeve 16. A threaded hole is opened inside the connecting seat 15. A through hole is opened in the middle of the threaded sleeve 16. The limiting nut 17 passes through the through hole and connects to the threaded hole, which facilitates quick alignment and connection between the uniformly distributed umbrella 6 and the connecting seat 15 at the end of the connecting pipe 2. It can further reinforce the position of the threaded sleeve 16, thereby ensuring the stability of the uniformly distributed umbrella 6 after installation, facilitating the installation and disassembly of the uniformly distributed umbrella 6, and making its assembly convenient.

[0036] The working principle and usage process of this utility model are as follows: During the installation of the fluidizing plate 5 and the uniform distribution umbrella 6, the fluidizing plate 5 is limited and installed inside the equipment by the limiting plate 8 and the locking nut seat 9 connected to the outside of the connecting pipe 2. At the same time, the pressure strip 14 at the edge of the limiting plate 8 ensures that the edge of the fluidizing plate 5 is subjected to the same clamping force during installation, thus ensuring the installation stability of the fluidizing plate 5.

[0037] Combined with the rubber pad 13 at the edge of the fluidizing plate 5, the edge of the fluidizing plate 5 is in close contact with the inner wall of the equipment, ensuring the tightness and stability of the fluidizing plate 5 installation. In conjunction with the deformation rubber ring 11 on the edge of the locking nut seat 9, the tightness of the contact between the locking nut seat 9 and the edge of the silo pump housing 1 is further ensured. This method facilitates the convenient, fast and stable installation of the fluidizing plate 5, ensuring its practical application effect.

[0038] After the fluidizing plate 5 is fixedly installed, the threaded sleeve 16 is used to quickly align and connect the uniform distribution umbrella 6 with the connecting seat 15 at the end of the connecting pipe 2, making the uniform distribution umbrella 6 easy to install. The limiting nut 17 connected inside the connecting seat 15 and the threaded sleeve 16 is used to further reinforce the position of the threaded sleeve 16, ensuring the stability of the uniform distribution umbrella 6 after installation. The installation and disassembly of the uniform distribution umbrella 6 make its assembly convenient.

[0039] In practical applications, the traditional method results in a columnar shape when the air enters the equipment and the tee through the air channel. This results in high kinetic energy concentration but a small effective area. Meanwhile, the space where the material is piled up is relatively small, and the energy is too concentrated. The compressed air will only make a hole in the material, which cannot make a large amount of material boil and active, thus failing to optimize the conveying function. The compressed air will also carry the material and impact the wall plate opposite the equipment. At this time, the compressed air carrying the material is like a bunch of bullets, which may erode and wear down the wall plate opposite the equipment in a short time, damaging the equipment.

[0040] At present, compressed air is supplied to the fluidizing distributor through the compressed air pipe 4 and the connecting pipe 2. Compressed air is introduced into the material accumulated in the tee, and the compressed air is fluidized and evenly distributed by the fluidizing plate 5 and the distribution umbrella 6. Before entering the equipment, the compressed air is dispersed by the distribution umbrella 6 and rebounded to the fluidizing plate 5. Then, the fluidizing plate 5 distributes it to the material accumulated in the equipment, which reduces the large kinetic energy and greatly increases the area of ​​action of the compressed air on the material. This disperses the concentrated compressed air and acts on the accumulated material, making the material in a large area of ​​the equipment boil and active, thus playing a role in stable conveying.

[0041] This keeps the material in a boiling fluidized state, preventing accumulation and clumping. It also reduces the negative effects of gravity on the conveying process and reduces frictional resistance between materials, thereby reducing the required conveying power and significantly reducing power consumption. It also stabilizes the conveying process and solves the problem of insufficient driving power caused by material accumulation and clumping, which leads to conveying difficulties. It maintains the stability of the conveying process and avoids the disturbance of materials or the scouring and wear of equipment caused by concentrated air intake by dispersing the compressed air into the tee.

[0042] Furthermore, when it is necessary to adjust the gap between the uniform distribution umbrella 6 and the edge of the fluidizing plate 5, the uniform distribution umbrella 6 can be rotated by rotating the threaded sleeve 16. By adjusting the position between the threaded sleeve 16 and the connecting seat 15, the position of the uniform distribution umbrella 6 can be adjusted, thereby facilitating the change of the gap distance between the edge of the uniform distribution umbrella 6 and the fluidizing plate 5. This makes it convenient to adjust and control the fluidizing ventilation volume during air outlet, and to make adaptive adjustments according to actual needs.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A novel bin pump fluidization device comprising a bin pump housing (1) characterized by: Both side edges of the bin pump shell (1) are connected with the communicating pipe (2), the entering end of the communicating pipe (2) is connected with the material blocking device (3), the top entering end of the material blocking device (3) is connected with the external compressed air conveying pipeline through the compressed air connecting pipe (4), the discharging end edge of the communicating pipe (2) is provided with the fluidization disc (5), one side of the fluidization disc (5) is provided with the uniform distribution umbrella (6), a plurality of air guide grooves (7) are arranged at equal angles between the fluidization disc (5) and the uniform distribution umbrella (6) at the position of the air discharging end edge of the communicating pipe (2). The edge end of the communicating pipe (2) is connected with the limiting disc (8) at the position of the edge of the fluidization disc (5) through screw connection, a plurality of pressure strips (14) are arranged at equal angles at the edge end of the limiting disc (8), the outer side horizontal section edge end of the communicating pipe (2) is provided with the external thread (18), and the communicating pipe (2) is connected with the limiting disc (8) and the locking nut base (9) through the external thread (18) outside the communicating pipe (2).

2. A novel bin pump fluidization apparatus as claimed in claim 1, wherein: The material blocking device (3) prevents the material from returning, the edge of the fluidization disc (5) and the uniform distribution umbrella (6) is provided with a gap, the air flow discharged from the air guide groove (7) is discharged through the gap, and the fluidization disc (5) is fixed at the edge of the bin pump shell (1) through the limiting disc (8) and the locking nut base (9).

3. A novel bin pump fluidization apparatus as claimed in claim 1, wherein: The locking nut base (9) is provided with the annular extrusion groove (10) inside, and the deformed rubber ring (11) is embedded and connected in close fit with the inside of the extrusion groove (10). The limiting and fitting groove (12) is arranged at the side edge end of the fluidization disc (5) away from the uniform distribution umbrella (6), and the rubber pad disc (13) is connected in close fit with the inside of the limiting and fitting groove (12).

4. A novel bin pump fluidization apparatus as claimed in claim 3, wherein: The deformed rubber ring (11) inside the extrusion groove (10) is in close contact with the outside edge of the bin pump shell (1) through the extrusion of the locking nut base (9), and the rubber pad disc (13) is in close contact with the inside edge of the bin pump shell (1).

5. A novel bin pump fluidization apparatus as claimed in claim 1, wherein: The connecting base (15) is connected with the end of the communicating pipe (2), the threaded sleeve (16) is connected with the inside middle part of the uniform distribution umbrella (6), the threaded sleeve (16) is connected with the outside of the connecting base (15) through screw connection, and the inside of the connecting base (15) and the threaded sleeve (16) is detachably connected with the limiting nut (17).

6. A novel bin pump fluidization apparatus as claimed in claim 5, wherein: The inside of the connecting base (15) is provided with the threaded hole, the middle part of the threaded sleeve (16) is provided with the perforation, and the limiting nut (17) is connected into the threaded hole through the perforation.

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