Tower bottom built-in fluidized bed

Abstract

The utility model discloses a fluidized bed with a built-in tower bottom, which particularly relates to the technical field of fluidized beds and comprises a fluidized bed body, a detachable pore plate is arranged on the inner wall of the fluidized bed body, granular solid materials are placed at the top end of the pore plate, a plurality of air holes are formed in the pore plate, and an air inlet channel is arranged at the bottom end of the fluidized bed body. A sight glass through which the internal condition of the fluidized bed body can be observed is arranged on the outer wall of the fluidized bed body, refraction assemblies are arranged on the two sides of the sight glass, and each refraction assembly comprises a mounting block fixedly arranged on the outer wall of the fluidized bed body. According to the fluidized bed, the pore plate is arranged in the fluidized bed body, after airflow passes through the pore plate, solid particles suspend and move violently, and are continuously mixed and collided in the movement process, so that the contact among the particles is more frequent, the heat transfer and mass transfer processes are facilitated, and the material drying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of fluidized bed technology, specifically to a fluidized bed built into the bottom of a tower. Background Technology

[0002] Fluidized beds, also known as fluidized bed reactors, are reaction equipment widely used in petrochemical, pharmaceutical, and food industries. Their working principle is to use gas or liquid to impact particulate solids, causing the solids to be in a suspended state.

[0003] Fluidized beds are generally used for drying, sterilizing, or deodorizing granular solids, such as the fluidized bed with built-in bottom of a tower disclosed in the prior art, CN218443016U.

[0004] In order to facilitate observation of the internal conditions of the fluidized bed during the process, observation windows can be set on the outer wall of the fluidized bed. However, the size of the observation windows is limited, and there are bound to be blind spots that cannot be observed. Therefore, the observation range of the fluidized bed observation windows in the prior art needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a fluidized bed built into the bottom of a tower. By setting refractive components on both sides of the viewing mirror, the metal refractive mirror can reflect the scene in the original blind spot, thus expanding the observation range of the viewing mirror.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fluidized bed built into the bottom of a tower, comprising a fluidized bed body, wherein a detachable perforated plate is provided on the inner wall of the fluidized bed body, granular solid material is placed on the top of the perforated plate, and the perforated plate is provided with a plurality of vent holes, the size of which is smaller than the size of the solid material particles and has the function of venting. The vent holes are inclined, and after the air is discharged through the vent holes, the airflow direction is also inclined, thereby enabling the material to rotate inside the fluidized bed body. An air inlet channel is provided at the bottom of the fluidized bed body, and the air driving the material is introduced into the fluidized bed body through the air inlet channel.

[0007] The outer wall of the fluidized bed body is provided with a sight glass that allows observation of the internal conditions of the fluidized bed body. Refraction components are provided on both sides of the sight glass. The refraction components include mounting blocks fixed on the outer wall of the fluidized bed body. The mounting blocks penetrate the outer wall of the fluidized bed body. An adjusting roller that can rotate horizontally is embedded in the mounting blocks. A metal refraction mirror that penetrates the adjusting roller is provided on the adjusting roller. Rotating the adjusting roller can adjust the direction of the metal refraction mirror. The metal refraction mirror can be made of metals such as aluminum or iron after polishing. It can play the role of a traditional mirror in terms of reflection, and at the same time, it is stronger than a mirror made of glass.

[0008] Furthermore, the outer end of the adjusting roller is wrapped with a rubber pad, which contacts the mounting block, increasing the sealing between the adjusting roller and the mounting block. Both sides of the metal refractor are provided with sealing gaskets embedded inside the adjusting roller, which play a sealing role between the adjusting roller and the metal refractor.

[0009] Furthermore, both ends of the metal refractor are fixedly provided with limiting strips for restricting the sliding range of the metal refractor, and a handle is fixedly provided on the limiting strip located outside the fluidized bed body.

[0010] Furthermore, an indicator component is provided at the center of the top of the orifice plate. The indicator component includes a ball head, and a ball shell is fitted at the bottom of the ball head. The ball shell is detachably connected to the top of the orifice plate.

[0011] Furthermore, a connecting rope is fixedly provided at the top of the ball head. The connecting rope can rotate flexibly relative to the orifice plate. An indicator block is fixedly provided at one end of the connecting rope. The indicator block is small in mass, has a certain strength, and has a bright and eye-catching appearance.

[0012] Furthermore, an external pipe is provided on one side of the fluidized bed body, and multiple baffles are provided inside the external pipe, and multiple valves are provided on the front side of the external pipe;

[0013] The fluidized bed body is provided with a powder return pipe and two manholes at its outer end. The manholes facilitate the inspection and maintenance of the internal structure of the fluidized bed body. The fluidized bed body is provided with multiple cleaning balls inside.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. By setting perforated plates inside the fluidized bed body, the airflow passes through the perforated plates, causing the solid particles to be suspended and move violently. During the movement, they are constantly mixed and collided. This movement makes the contact between particles more frequent, which is conducive to the heat transfer and mass transfer process and improves the drying efficiency of the material.

[0016] 2. By setting refractive components on both sides of the viewing mirror, the metal refractive mirror can reflect the scene in the original blind spot, and the scene can be observed by looking at the metal refractive mirror through the viewing mirror. Therefore, this method can expand the observation range of the viewing mirror. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1This is a top view of the structure of this utility model;

[0019] Figure 2 This is a bottom view of the structure of this utility model;

[0020] Figure 3 This is a top view of the present invention;

[0021] Figure 4 This is a side view of the present invention;

[0022] Figure 5 This is a diagram showing the internal structure of the fluidized bed body of this utility model;

[0023] Figure 6 This is a diagram showing the internal structure of the outer pipe of this utility model;

[0024] Figure 7 This is a cross-sectional view of the perforated plate of this utility model;

[0025] Figure 8 This is a structural diagram of the refractive component of this utility model;

[0026] Figure 9 This is a top sectional view of the adjusting roller of this utility model;

[0027] Figure 10 This is a structural diagram of the indicator component of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Fluidized bed body; 2. Orifice plate; 201. Ventilation hole; 3. Manhole; 4. Powder return pipe; 5. Sight glass; 6. Valve; 7. Cleaning ball; 8. Baffle; 9. Air inlet channel; 10. Refraction component; 1001. Mounting block; 1002. Adjusting roller; 1003. Metal refraction mirror; 1004. Limiting strip; 1005. Handle; 11. Indicator component; 1101. Spherical shell; 1102. Spherical head; 1103. Connecting rope; 1104. Indicator block. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0031] This utility model provides, for example Figure 1-10The diagram shows a fluidized bed with a built-in bottom, comprising a fluidized bed body 1. The inner wall of the fluidized bed body 1 is provided with a detachable perforated plate 2. Particulate solid material is placed on the top of the perforated plate 2. The perforated plate 2 has multiple vent holes 201. The size of the vent holes 201 is smaller than the size of the solid material particles and has the function of air permeation. The vent holes 201 are in an inclined state. After the air is discharged through the vent holes 201, the airflow direction is also inclined, so that the material can rotate inside the fluidized bed body 1. The bottom end of the fluidized bed body 1 is provided with an air inlet channel 9, and the air driving the material is introduced into the fluidized bed body 1 through the air inlet channel 9.

[0032] The fluidized bed body 1 is provided with an external pipe on one side, and multiple baffles 8 are provided inside the external pipe. Multiple valves 6 are provided on the front side of the external pipe.

[0033] The fluidized bed body 1 is provided with a powder return pipe 4 and two manholes 3 at its outer end. The manholes 3 facilitate the inspection and maintenance of the internal structure of the fluidized bed body 1. The fluidized bed body 1 is provided with multiple cleaning balls 7 inside.

[0034] Air enters the fluidized bed body 1 through the air inlet channel 9, while granular material is placed at the top of the perforated plate 2. The airflow passes through the perforated plate 2 from bottom to top through the air vents 201, forming a certain airflow direction and fluidization. The gas flows upward at a certain speed, exerting an upward force on the solid particles at the top of the perforated plate 2. When the gas velocity reaches a certain value, the solid particles begin to suspend in the gas, forming a fluidized state. At this time, the solid particles exhibit properties similar to fluids, and can flow and mix freely. Guided by the airflow through the perforated plate 2, the solid particles can converge and be discharged towards the fluidized bed outlet.

[0035] In the fluidized state, solid particles move violently within the fluidized bed body 1, constantly mixing and colliding. This movement makes the contact between particles more frequent, which is beneficial to the heat and mass transfer process. The heat transfer within the fluidized bed body 1 is mainly achieved through convective heat transfer between particles and gas and thermal conduction between particles. Due to the movement of particles, the heat transfer coefficient is high, enabling rapid heat transfer. During the drying process, the moisture in the wet material evaporates through contact with hot air, thus achieving material drying.

[0036] To broaden the field of view when observing the interior of 1, such as Figure 1 , 2As shown in Figures 8 and 9, a sight glass 5 is provided on the outer wall of the fluidized bed body 1, which allows observation of the interior of the fluidized bed body 1. A refraction component 10 is provided on both sides of the sight glass 5. The refraction component 10 includes a mounting block 1001 fixed on the outer wall of the fluidized bed body 1. The mounting block 1001 penetrates the outer wall of the fluidized bed body 1. An adjusting roller 1002 that can rotate horizontally is embedded in the mounting block 1001. A metal refraction mirror 1003 that penetrates the adjusting roller 1002 is provided on the adjusting roller 1002. Rotating the adjusting roller 1002 can adjust the direction of the metal refraction mirror 1003. The metal refraction mirror 1003 can be made of metals such as aluminum or iron after polishing. It can play the reflective role of a traditional mirror and is stronger than a mirror made of glass.

[0037] The outer end of the adjusting roller 1002 is wrapped with a rubber pad, which contacts the mounting block 1001, increasing the sealing between the adjusting roller 1002 and the mounting block 1001. Both sides of the metal refractor 1003 are provided with sealing gaskets embedded inside the adjusting roller 1002, which play a sealing role between the adjusting roller 1002 and the metal refractor 1003.

[0038] Both ends of the metal refractor 1003 are fixedly provided with limiting strips 1004 for limiting the sliding range of the metal refractor 1003, and a handle 1005 is fixedly provided on the limiting strips 1004 located outside the fluidized bed body 1.

[0039] During the fluidization process, the fluidization process inside the fluidized bed body 1 can be observed through the sight glass 5. However, the size of the sight glass 5 is limited, and the viewing angle is restricted. At this time, the metal refraction mirror 1003 can be operated through the handle 1005. One end of the metal refraction mirror 1003 is pushed into the fluidized bed body 1. During the pushing process, the metal refraction mirror 1003 slides relative to the adjusting roller 1002. After one end of the metal refraction mirror 1003 enters the fluidized bed body 1, it can play a refracting role, displaying the situation in the blind spot of the sight glass 5 on the metal refraction mirror 1003. By observing the metal refraction mirror 1003, the observer can see the scene that was originally not visible in the blind spot. At the same time, the adjusting roller 1002 can be rotated to drive the metal refraction mirror 1003, adjust the angle of the metal refraction mirror 1003, and thus adjust the viewing angle, further reducing the blind spot. Therefore, this method can expand the observation range of the sight glass 5.

[0040] To intuitively understand the movement trajectory of materials within the fluidized bed body 1, such as... Figure 5 , 10 As shown, an indicator component 11 is provided at the center of the top of the perforated plate 2. The indicator component 11 includes a ball head 1102. A ball shell 1101 is sleeved on the bottom of the ball head 1102. The ball shell 1101 is detachably connected to the top of the perforated plate 2.

[0041] A connecting rope 1103 is fixedly provided at the top of the ball head 1102. The connecting rope 1103 can rotate flexibly relative to the perforated plate 2. An indicator block 1104 is fixedly provided at one end of the connecting rope 1103. The indicator block 1104 is small in mass, has a certain strength, and has a bright and eye-catching appearance.

[0042] The indicator block 1104 is connected to the center of the top of the orifice plate 2. During the operation of the fluidized bed, the indicator block 1104 is affected by the airflow and, like other solids, is suspended inside the fluidized bed body 1 and moves in the fluidized bed body 1 under the drive of the airflow. The indicator block 1104 has a bright and eye-catching appearance and can be more easily and clearly observed during the fluidization process. By observing the indicator block 1104, the movement trajectory of the material during the fluidization process can be understood more clearly and intuitively, thereby judging whether the fluidization movement of the material is normal.

[0043] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fluidized bed in a tower bottom comprising a fluidized bed body (1), characterized in that: The fluidized bed body (1) is provided with a detachable orifice plate (2) on the inner wall, a plurality of air holes (201) are formed on the orifice plate (2), the air holes (201) are in an inclined state, and the fluidized bed body (1) is provided with an air inlet channel (9) at the bottom end; The fluidized bed body (1) is provided with a sight glass (5) on the outer wall, the inside of the fluidized bed body (1) can be observed, the sight glass (5) is provided with a refraction assembly (10) on both sides, the refraction assembly (10) comprises a mounting block (1001) fixedly arranged on the outer wall of the fluidized bed body (1), the mounting block (1001) penetrates the outer wall of the fluidized bed body (1), the mounting block (1001) is inlaid with an adjusting roller (1002) capable of rotating horizontally, and the adjusting roller (1002) is provided with a metal reflecting mirror (1003) penetrating the adjusting roller (1002).

2. A fluid bed in the column bottom according to claim 1, characterized in that: The outer end of the adjusting roller (1002) is wrapped with a rubber pad in contact with the mounting block (1001), and the metal reflecting mirror (1003) is provided with a sealing pad inlaid in the adjusting roller (1002) on both sides.

3. The in-tank fluidized bed according to claim 1, wherein: The metal reflecting mirror (1003) is provided with a limiting strip (1004) for limiting the sliding range of the metal reflecting mirror (1003) at both ends, and a handle (1005) is fixedly arranged on the limiting strip (1004) outside the fluidized bed body (1).

4. The in-tank fluidized bed according to claim 1, wherein: The center position of the top end of the orifice plate (2) is provided with an indicating assembly (11), the indicating assembly (11) comprises a ball head (1102), the bottom end of the ball head (1102) is provided with a spherical shell (1101), and the spherical shell (1101) is detachably connected to the top end of the orifice plate (2).

5. A fluid bed in the column bottom according to claim 4, characterized in that: The top end of the ball head (1102) is fixedly provided with a connecting rope (1103), one end of the connecting rope (1103) is fixedly provided with an indicating block (1104).

6. The in-tank fluidized bed according to claim 1, wherein: One side of the fluidized bed body (1) is provided with an external pipe, a plurality of baffles (8) are arranged in the external pipe, and a plurality of valves (6) are arranged on the front side of the external pipe; The fluidized bed body (1) is provided with a powder return pipe (4) and two manholes (3), and a plurality of cleaning balls (7) are arranged in the fluidized bed body (1).

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