Rotary type stock bin fluidizing device

Abstract

The utility model provides a rotary stock bin fluidizing device, which belongs to the technical field of material fluidization and comprises a connecting pipe, a mounting seat and a jet flow component, one end of the connecting pipe is used for being connected with an air source, and a delivery pump is arranged on the connecting pipe; the mounting base is connected to the other end of the connecting pipe, a flow guide cavity is formed in the mounting base and communicates with the connecting pipe, and an open hole communicating with the flow guide cavity is further formed in the peripheral surface of the mounting base; the jet flow assembly comprises a bearing arranged outside the mounting base, a connecting base arranged outside the bearing in a sleeving mode and a plurality of rotating fan blades distributed in the circumferential direction of the connecting base, the rotating fan blades are provided with air injection cavities, the connecting base is provided with a drainage channel communicating with the open hole and the air injection cavities, and the rotating fan blades are further provided with air injection holes communicating with the air injection cavities. The utility model provides a rotary type stock bin fluidization device, and aims to solve the problems that in the prior art, fluidization is not thorough and energy consumption is large during material flow fluidization.

Description

Technical Field

[0001] This utility model belongs to the field of material fluidization technology, and more specifically, it relates to a rotary silo fluidization device. Background Technology

[0002] When materials accumulate in storage silos, especially wet or fine powder materials, blockages can easily form due to adhesion and internal friction. To reduce interparticle friction and adhesion, gas is injected into the material, creating an air film between the particles. This loosens the material, making it easier to flow, and the solid particles are fluidized. After fluidization, the material exhibits fluid-like properties, facilitating operations such as conveying, mixing, drying, and cooling.

[0003] Existing technologies typically use nozzles to inject gas into materials. However, because the nozzle's airflow direction is fixed, it's impossible to fully fluidize the material within the storage silo. Even with nozzles placed at various locations within the silo, dead air zones can still occur, preventing some material from being completely fluidized. Using a motor to drive the nozzle rotation not only increases energy consumption but also poses a safety hazard due to the excessive circuitry. Utility Model Content

[0004] The purpose of this invention is to provide a rotary silo fluidization device, which aims to solve the problems of incomplete fluidization and high energy consumption in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, a rotary silo fluidization device is provided, comprising:

[0007] A connecting pipe, one end of which is used to connect to a gas source, is equipped with a delivery pump;

[0008] A mounting base is connected to the other end of the connecting pipe. The mounting base has a flow guide cavity along its axial direction, which communicates with the connecting pipe. The outer circumferential surface of the mounting base also has an opening communicating with the flow guide cavity.

[0009] The jet assembly includes a bearing disposed outside the mounting base, a connecting base sleeved outside the bearing, and a plurality of rotating fan blades distributed circumferentially along the connecting base. The rotating fan blades have jet chambers, the connecting base has flow channels respectively communicating with the opening and the jet chambers, and the rotating fan blades also have jet holes communicating with the jet chambers.

[0010] The airflow flows along the connecting pipe, the guide cavity, the drainage channel, and the jet cavity, and is finally ejected outward from the jet hole. The rotating fan blades rotate around the axis of the mounting base under the action of the airflow.

[0011] In one possible implementation, the jet assembly further includes a nozzle inserted into the jet orifice, the nozzle having a plurality of pressure holes arranged in a ring.

[0012] In one possible implementation, the nozzle includes:

[0013] A mounting base is inserted into the jet hole. The mounting base has an installation groove and an air inlet groove that communicates with the jet hole. The installation groove is a spherical groove and communicates with the air inlet groove.

[0014] A hinged ball is rotatably disposed within the mounting groove, and an air passage communicating with the air inlet groove is provided within the hinged ball; and

[0015] The nozzle is connected to the hinge ball, and the nozzle has a chamber that communicates with the air passage. The pressurization port is opened in the nozzle and communicates with the chamber.

[0016] In one possible implementation, the longitudinal section of the pressurizing orifice is tapered, and the diameter of the pressurizing orifice gradually decreases along the outlet direction of the airflow.

[0017] In one possible implementation, multiple pressurizing holes are located in the same ring and form a pressurizing module, which is provided in multiple groups from the inside out.

[0018] In one possible implementation, the inner circumferential surface of the connecting seat is provided with a receiving groove for accommodating the bearing, the bearing is embedded in the receiving groove, and the axial height of the receiving groove is less than the axial height of the connecting seat.

[0019] In one possible implementation, the outer peripheral surface of the connecting seat is provided with multiple buckles, and the rotating fan blades are configured to correspond one-to-one with the buckles and are engaged with the buckles.

[0020] In one possible implementation, the blade surface of the rotating fan is set at an acute angle to the axis of the mounting base.

[0021] In one possible implementation, multiple sets of the jet assembly are arranged sequentially along the axial direction of the mounting base.

[0022] In one possible implementation, the jet orifice is located on one side of the rotating fan blade, and the jet orifice of the adjacent jet assembly is located on the other side of the rotating fan blade, with the rotating fan blades of the two adjacent sets of jet assemblies rotating in opposite directions.

[0023] The advantages of the rotary silo fluidization device provided by this utility model are as follows: Compared with the prior art, the rotary silo fluidization device of this utility model, through the combination of bearings, connecting seats, and rotating fan blades, allows airflow to smoothly enter the jet chamber through the guide channel and finally be ejected outward from the jet hole. The rotating fan blades rotate around the axis of the mounting seat under the action of the airflow, forming a dynamic jetting effect. No external drive device is required, reducing energy consumption and circuit layout. The rotary jetting method in this utility model not only evenly covers the material and improves the uniformity of fluidization, but also enhances the impact force of the airflow through the centrifugal force generated by rotation, further improving the fluidization effect. Furthermore, by connecting to the air source through a connecting pipe and equipped with a delivery pump, the airflow can be effectively delivered to the guide chamber, controlling the airflow pressure. The design of the mounting seat allows the airflow to be evenly distributed into the jet assembly through the guide chamber and openings, ensuring the stability and continuity of the airflow. This device design not only simplifies the airflow transmission path but also improves the utilization efficiency of the airflow and reduces energy loss. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the rotary silo fluidization device provided in an embodiment of the present utility model;

[0026] Figure 2 A cross-sectional view of the rotary silo fluidization device provided in an embodiment of this utility model;

[0027] Figure 3 This is a cross-sectional view of the nozzle used in an embodiment of this utility model.

[0028] In the diagram: 1. Connecting pipe; 2. Mounting base; 201. Flow guide cavity; 3. Jet assembly; 301. Connecting base; 3011. Flow channel; 302. Bearing; 303. Rotating fan blade; 3031. Jet nozzle; 4. Nozzle; 401. Fixing base; 4011. Air inlet groove; 402. Hinge ball; 4021. Air passage; 403. Nozzle head; 4031. Chamber; 4032. Pressurization hole. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "first," "second," or "third," etc., are used to distinguish different objects, not to describe a specific order. Unless otherwise stated, other directional terms, such as "vertical," "clockwise," and "counterclockwise," indicate orientation or positional relationships based on the orientation and positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, not to indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this utility model. In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" should be interpreted broadly, that is, any connection method in which there is no displacement relationship or relative rotation relationship between the two, that is, including non-removable fixed connection, detachable fixed connection, integral connection, and fixed connection through other devices or elements. In the claims, description, and accompanying drawings of this utility model, the terms "comprising," "having," and their variations are intended to mean "including but not limited to."

[0031] Please refer to the following: Figures 1 to 3 The rotary silo fluidizing device provided by this utility model will now be described. The rotary silo fluidizing device includes a connecting pipe 1, a mounting base 2, and a jet assembly 3. One end of the connecting pipe 1 is connected to an air source, and a delivery pump is installed on the connecting pipe 1. The mounting base 2 is connected to the other end of the connecting pipe 1, and a guide cavity 201 is formed along its own axial direction on the mounting base 2. The guide cavity 201 communicates with the connecting pipe 1, and an opening communicating with the guide cavity 201 is also formed on the outer circumferential surface of the mounting base 2. The jet assembly 3 includes a bearing 302 disposed outside the mounting base 2 and a connecting base 30 sleeved outside the bearing 302. 1 and multiple rotating fan blades 303 distributed circumferentially along the connecting seat 301. The rotating fan blades 303 are provided with jet chambers. The connecting seat 301 is provided with a flow channel 3011 connecting the opening and the jet chamber. The rotating fan blades 303 are also provided with jet holes 3031 connecting the jet chambers. The airflow flows along the connecting pipe 1, the flow channel 201, the flow channel 3011 and the jet chamber, and finally is ejected outward from the jet holes 3031. The rotating fan blades 303 rotate about the axis of the mounting seat 2 under the action of the airflow.

[0032] Compared with the prior art, the rotary silo fluidization device provided by this utility model, through the combination of bearing 302, connecting seat 301, and rotating fan blade 303, allows airflow to smoothly enter the jet chamber through the guide channel 3011 and finally be ejected outward from the jet hole 3031. The rotating fan blade 303 rotates around the axis of the mounting base 2 under the action of the airflow, forming a dynamic jetting effect, eliminating the need for an external drive device, thus reducing energy consumption and circuit layout. The rotary jetting method in this utility model not only evenly covers the material and improves the uniformity of fluidization, but also enhances the impact force of the airflow through the centrifugal force generated by rotation, further improving the fluidization effect. Furthermore, by connecting to the air source through the connecting pipe 1 and equipped with a delivery pump, the airflow can be effectively delivered to the guide chamber 201, controlling the airflow pressure. The design of the mounting base 2 allows the airflow to be evenly distributed into the jet assembly 3 through the guide chamber 201 and the opening, ensuring the stability and continuity of the airflow. This device design not only simplifies the airflow transmission path but also improves the airflow utilization efficiency and reduces energy loss.

[0033] Optionally, the air source can be an air tank or an air compressor.

[0034] It should be noted that the rotating fan blade 303 has a certain thickness, which facilitates the opening of an air jet chamber inside.

[0035] In some embodiments, please refer to Figures 1 to 2 The jet assembly 3 also includes a nozzle 4 inserted into the jet hole 3031, and the nozzle 4 has a plurality of pressurizing holes 4032 arranged in a ring.

[0036] Multiple annularly distributed pressurizing orifices 4032 on the nozzle 4 allow the airflow to be ejected more uniformly, avoiding the problems of airflow concentration or unevenness that may occur with a single jet orifice 3031, thus improving the uniformity and coverage of the airflow. The design of the pressurizing orifices 4032 also further pressurizes the airflow as it passes through the nozzle 4, creating a higher-velocity airflow jet. This high-pressure airflow not only penetrates the fluidized material more effectively but also enhances the impact force on the hopper surface, thereby improving the efficiency and depth of fluidization. It effectively reduces energy loss during the jetting process, ensuring that the airflow maintains high kinetic energy when leaving the jet orifice 3031 to drive the rotating fan blade 303.

[0037] In some embodiments, please refer to Figure 3The nozzle 4 includes a fixed base 401, a hinged ball 402, and a nozzle head 403. The fixed base 401 is inserted into the jet hole 3031. The fixed base 401 has an installation groove and an air inlet groove 4011 connected to the jet hole 3031. The installation groove is a spherical groove and is connected to the air inlet groove 4011. The hinged ball 402 is rotatably disposed in the installation groove, and an air passage 4021 connected to the air inlet groove 4011 is opened in the hinged ball 402. The nozzle head 403 is connected to the hinged ball 402. The nozzle head 403 has a chamber 4031 connected to the air passage 4021. A pressurization hole 4032 is opened in the nozzle head 403 and is connected to the chamber 4031.

[0038] The articulated ball 402 has multiple degrees of freedom within the mounting slot, allowing the nozzle 403 to rotate freely. This enables the airflow injection direction to be adjusted according to actual needs. This flexibility allows the fluidizing gas to more precisely cover different areas of the hopper, making it particularly suitable for complex shapes or scenarios requiring localized focused fluidization, thereby improving the uniformity and effectiveness of fluidization.

[0039] Specifically, the articulated ball 402 can have a structure similar to a ball valve.

[0040] In some embodiments, please refer to Figure 3 The longitudinal section of the pressurization hole 4032 is tapered, and the diameter of the pressurization hole 4032 gradually decreases along the outlet direction of the airflow.

[0041] The tapered pressurizing orifice 4032 constrains the airflow through a gradually narrowing channel. According to fluid mechanics principles, the airflow velocity increases as the channel cross-sectional area decreases. This acceleration effect results in higher airflow velocity and stronger impact force upon ejection, enabling more effective penetration of the fluidized material and improving drying efficiency and depth. The tapered structure of the tapered pressurizing orifice 4032 further concentrates the airflow upon ejection, reducing airflow diffusion and energy loss. This concentrated injection not only more precisely covers the target area but also ensures uniform distribution of the fluidizing gas, further enhancing fluidization quality.

[0042] In some embodiments, please refer to Figure 3 Multiple pressure holes 4032 are located in the same ring and form a pressure module, and the pressure module has multiple sets from the inside to the outside.

[0043] The scheme in this embodiment further increases the number of pressurization holes 4032, thereby increasing the airflow distribution area.

[0044] In some embodiments, please refer to Figure 2 The inner circumferential surface of the connecting seat 301 is provided with a receiving groove for accommodating the bearing 302. The bearing 302 is embedded in the receiving groove, and the axial height of the receiving groove is less than the axial height of the connecting seat 301.

[0045] The design of the receiving groove allows the bearing 302 to be precisely fitted into the connecting seat 301, ensuring a tighter fit between the bearing 302 and the connecting seat 301 and reducing shaking or misalignment of the bearing 302 during operation. This stable installation method helps improve the smooth operation of the rotating fan blade 303, reduces vibration and noise, and extends the service life of the equipment. The structure of the receiving groove allows the bearing 302 to be installed into the connecting seat 301 quickly and accurately, reducing adjustment and calibration work during assembly. At the same time, because the axial height of the receiving groove is less than the axial height of the connecting seat 301, the bearing 302 still has some space after installation, facilitating subsequent disassembly and maintenance operations, reducing equipment maintenance costs and time.

[0046] In some embodiments, please refer to Figure 1 The outer circumferential surface of the connecting seat 301 is provided with multiple buckles, and the rotating fan blade 303 is set with a corresponding buckle and is engaged with the buckle.

[0047] The snap-fit ​​design allows the rotating fan blade 303 to be quickly and accurately installed onto the connector 301 without the need for complicated tools or adjustment steps, significantly simplifying the assembly process and improving the convenience and stability of the rotating fan blade 303 installation. If any component ages or becomes damaged, it can be replaced individually, reducing maintenance costs.

[0048] In some embodiments, please refer to Figure 1 The blade surface of the rotating fan blade 303 is set at an acute angle to the axis of the mounting base 2.

[0049] The acute-angled blade design allows for better utilization of the airflow's kinetic energy, making the rotating fan blade 303 rotate more easily under the influence of the airflow and reducing energy loss. This design improves the response speed and rotational stability of the rotating fan blade 303, ensuring the high efficiency and reliability of the jet assembly 3 during operation.

[0050] In some embodiments, please refer to Figure 1 Multiple sets of jet assembly 3 are arranged sequentially along the axial direction of mounting base 2.

[0051] The design of multiple jet components 3 can increase the jet volume of airflow and accelerate the fluidization efficiency of materials.

[0052] In some embodiments, please refer to Figure 1 The jet nozzle 3031 is opened on one side of the rotating fan blade 303, and the jet nozzle 3031 of the adjacent jet assembly 3 is opened on the other side of the rotating fan blade 303. The rotating fan blades 303 of the two adjacent sets of jet assemblies 3 turn in opposite directions.

[0053] Because the jet nozzles 3031 are located on the side of the rotating fan blades 303, and the adjacent jet assembly 3 rotate in opposite directions, the airflow forms an interlaced airflow pattern during jetting, improving the uniformity of airflow coverage. Interlaced jetting also effectively avoids mutual interference between airflows, ensuring that the fluidizing gas covers the hopper surface more evenly, reducing fluidization dead zones, and improving the overall quality and uniformity of fluidization. Furthermore, since the rotating fan blades 303 of adjacent jet assembly 3 rotate in opposite directions, the torque and vibration generated during rotation can cancel each other out, reducing overall equipment vibration and noise, and improving operational stability. This embodiment also enables more efficient utilization of the airflow's kinetic energy, reducing energy loss and improving the equipment's energy efficiency.

[0054] It should be noted that the rotating fan blade 303 includes a top surface and a bottom surface opposite to the top surface, as well as an end surface and a side surface. The side surface refers to two surfaces opposite each other in the direction of rotation, and is adjacent to the top surface and the bottom surface. The end surface refers to the side connected to the mounting base 2 and the side facing away from the mounting base 2.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 rotary silo fluidization device, characterized in that, include: A connecting pipe, one end of which is used to connect to a gas source, is equipped with a delivery pump; A mounting base is connected to the other end of the connecting pipe. The mounting base has a flow guide cavity along its axial direction, which communicates with the connecting pipe. The outer circumferential surface of the mounting base also has an opening communicating with the flow guide cavity. The jet assembly includes a bearing disposed outside the mounting base, a connecting base sleeved outside the bearing, and a plurality of rotating fan blades distributed circumferentially along the connecting base. The rotating fan blades have jet chambers, the connecting base has flow channels respectively communicating with the opening and the jet chambers, and the rotating fan blades also have jet holes communicating with the jet chambers. The airflow flows along the connecting pipe, the guide cavity, the drainage channel, and the jet cavity, and is finally ejected outward from the jet hole. The rotating fan blades rotate around the axis of the mounting base under the action of the airflow.

2. The rotary silo fluidization device as described in claim 1, characterized in that, The jet assembly also includes a nozzle inserted into the jet hole, and the nozzle has a plurality of pressure holes arranged in a ring.

3. The rotary silo fluidization device as described in claim 2, characterized in that, The nozzle includes: A mounting base is inserted into the jet hole. The mounting base has an installation groove and an air inlet groove that communicates with the jet hole. The installation groove is a spherical groove and communicates with the air inlet groove. A hinged ball is rotatably disposed within the mounting groove, and an air passage communicating with the air inlet groove is provided within the hinged ball; and The nozzle is connected to the hinge ball, and the nozzle has a chamber that communicates with the air passage. The pressurization port is opened in the nozzle and communicates with the chamber.

4. The rotary silo fluidization device as described in claim 2, characterized in that, The longitudinal section of the pressurizing orifice is tapered, and the diameter of the pressurizing orifice gradually decreases along the airflow outlet direction.

5. The rotary silo fluidization device as described in claim 2, characterized in that, Multiple pressurizing holes are located in the same ring and form a pressurizing module, and the pressurizing module is provided in multiple groups from the inside to the outside.

6. The rotary silo fluidization device as described in claim 1, characterized in that, The inner circumferential surface of the connecting seat is provided with a receiving groove for accommodating the bearing. The bearing is embedded in the receiving groove, and the axial height of the receiving groove is less than the axial height of the connecting seat.

7. The rotary silo fluidization device as described in claim 1, characterized in that, The outer circumferential surface of the connector is provided with multiple buckles, and the rotating fan blades are configured to correspond one-to-one with the buckles and are engaged with the buckles.

8. The rotary silo fluidization device as described in claim 1, characterized in that, The blade surface of the rotating fan is set at an acute angle to the axis of the mounting base.

9. The rotary silo fluidization device as described in claim 1, characterized in that, The jet assembly is provided in multiple sets along the axial direction of the mounting base.

10. The rotary silo fluidization device as described in claim 9, characterized in that, The jet orifice is located on one side of the rotating fan blade, and the jet orifice of the adjacent jet assembly is located on the other side of the rotating fan blade. The rotating fan blades of the two adjacent sets of jet assemblies rotate in opposite directions.

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