A photocuring fluidized bed for preparing encapsulated acid

Abstract

The invention provides a photocuring fluidized bed for preparing capsule acid, which comprises an upper barrel body, a middle barrel body, a hopper, a chassis, and a bottom barrel which are arranged in sequence from top to bottom, and further comprises a first side column; the hopper is used to hold mother seed powder, a filter assembly is arranged between the hopper and the chassis, a spray gun assembly is arranged on the chassis, a nozzle of the spray gun assembly passes through the filter assembly and extends into the hopper, the spray gun assembly is used to supply liquid material to the hopper, a lifting seat is arranged on the first side column, a lifting rod driven by an electric cylinder is arranged on the lifting seat, a connecting rod extending toward the hopper is arranged on the lifting rod, a C-shaped air duct for connecting the connecting rod is arranged on the hopper, a lower rotating seat is also arranged on the first side column, a lower rotating rod is rotatably connected to the lower rotating seat, a free end of the lower rotating rod is connected to the bottom of the middle barrel body, a plurality of atomizing nozzles distributed in an annular shape are arranged at the bottom of the middle barrel body, the atomizing nozzles are used to supply liquid photosensitive resin to the bottom of the middle barrel body, and a supply pipe connected to the plurality of atomizing nozzles is embedded on the lower rotating rod.

Description

Technical Field

[0001] The invention relates to the technical field of fluidized bed granulation, in particular to a photocuring fluidized bed for preparing encapsulated acid. Background Art

[0002] Fluidized bed is a multi-purpose process equipment that combines drying, granulation and powder coating, which makes the material suspended in a fluidized state under the action of clean hot air flow, so that its surface contacts the hot air and is heated evenly, achieving the best heat exchange state.

[0003] The working principle of the fluidized bed is to continuously add the water-soluble parent seed powder into the granulation fluidized bed from the feeder. Under the action of the air as liquefied gas and the hot air as the rotating airflow, it is in a suspended and rotating motion state. The parent seed powder and the binder are transported to the granulation fluidized bed through the nozzle and evenly sprayed on the parent seed powder liquefied in the bed, forming a "liquid bridge" between the carrier particles to adhere to form tiny core particles, and then adhere to and grow layer by layer on the surface of the core to form particles. Under the action of the hot air flow, the solvent is evaporated and the particles are continuously dried. For example, the Chinese patent document with application number CN901068551 discloses such a fluidized bed granulation equipment.

[0004] However, the seed powder does not grow uniformly to form particles under fluidization, so that the formed particles have different sizes. In addition, the use of hot air flow cannot quickly form particles. Summary of the invention

[0005] The present invention aims to solve the above technical problems and provides a photocuring fluidized bed for preparing encapsulated acid.

[0006] The technical solution of the present invention is a photocuring fluidized bed for preparing capsule acid, which comprises an upper barrel, a middle barrel, a hopper, a bottom plate, and a bottom barrel arranged in sequence from top to bottom, and also comprises a first side column arranged on one side of the upper barrel, the middle barrel, the hopper, and the bottom plate;

[0007] The middle barrel body and the hopper are both in a round hopper shape, the hopper is used to hold the mother seed powder, a filter assembly is provided between the hopper and the chassis, a spray gun assembly is provided on the chassis, the nozzle of the spray gun assembly passes through the filter assembly and extends into the hopper, the spray gun assembly is used to supply liquid material to the hopper, a lifting seat is provided on the first side column, a lifting rod driven by an electric cylinder is provided on the lifting seat, a connecting rod extending in the direction of the hopper is provided on the lifting rod, a C-shaped air duct for connection with the connecting rod is provided on the hopper, a lower rotating seat is also provided on the first side column, a lower rotating rod is rotatably connected to the lower rotating seat, the free end of the lower rotating rod is connected to the bottom of the middle barrel body, a plurality of atomizing nozzles distributed in an annular manner are provided at the bottom of the middle barrel body, the atomizing nozzle is used to supply liquid photosensitive resin to the bottom of the middle barrel body, and a supply pipe connected to a plurality of the atomizing nozzles is embedded in the lower rotating rod;

[0008] The bottom of the hopper is provided with a corrugated cover connected to the filter assembly, and the top of the hopper is provided with an S-shaped folding bag connected to the bottom of the middle barrel body. When the folding bag is in a folded state, a closed bag cavity is formed on the outer side of the middle barrel body and the inner wall slope of the hopper, and the folding bag is provided with an ultraviolet lamp located in the bag cavity. The upper port of the air duct is close to the top of the hopper, and the lower port of the air duct is close to the bottom of the hopper. The air duct is connected to a collecting barrel, and the air duct is also provided with a filter plate and a fan located on one side of the collecting barrel.

[0009] As an embodiment, the filter assembly includes an upper connecting plate and a lower connecting plate, the upper connecting plate is connected to the corrugated cover, the lower connecting plate is connected to the chassis, a sink groove is provided on the lower connecting plate, a porous plate and a steel wire mesh are provided in sequence in the sink groove, and holes are provided on the porous plate and the steel wire mesh, and the nozzle of the spray gun assembly passes through the hole.

[0010] As an embodiment, a plurality of upper connecting ears are evenly distributed around the upper connecting plate, and a plurality of lower connecting ears are evenly distributed around the lower connecting plate. The upper connecting ears and the lower connecting ears are opposite to each other and are connected by rivets.

[0011] As an embodiment, an upper rotating seat is also provided on the first side column, and an upper rotating rod is rotatably connected to the upper rotating seat. The upper rotating rod is parallel to the lower rotating rod, and the free end of the upper rotating rod is connected to the top of the middle barrel body. The middle barrel body and the upper barrel body are detachably connected, and the middle barrel body and the hopper are detachably connected.

[0012] As an implementation mode, upper mirrors are provided on both the front and rear sides of the middle barrel.

[0013] As an embodiment, a downward-view mirror is provided on the front side of the hopper.

[0014] As an embodiment, the upper port of the air duct is an air inlet, the lower port of the air duct is an air outlet, the collecting barrel is connected to the lower section of the air duct, the filter plate is arranged between the connection between the air duct and the collecting barrel and the lower port of the air duct, and is located close to the connection between the air duct and the collecting barrel, and the fan is arranged between the filter plate and the lower port of the air duct, and is located close to the filter plate.

[0015] As an embodiment, the lifting seat includes a seat body, an upper end of the seat body is provided with an upper positioning hole, a lower end of the seat body is provided with a lower positioning hole, and the lifting rod passes through the upper positioning hole and the lower positioning hole.

[0016] As an embodiment, it also includes a second side column arranged on the upper barrel body, the middle barrel body, the hopper, and the other side of the chassis, the second side column is opposite to the first side column, and the first side column and the second side column are used to connect the upper barrel body.

[0017] As an implementation manner, the bottom barrel is communicated with the bottom chassis, and an air inlet elbow is provided on one side of the bottom barrel.

[0018] Compared with the prior art, the present invention has the beneficial effect that in order to enable the mother seed powder to form particles of uniform size in a fluidized state and to enable the particles to be quickly formed, the principle of photocuring granulation is introduced. That is, after the binder is supplied for a period of time, it has gradually differentiated into large and small particles. Relatively speaking, the low point of the large particles is lower each time they fall, and the large particles should not continue to contact the binder in the fluidized bed. Therefore, the lifting rod driven by the electric cylinder of the photocuring fluidized bed for preparing capsule acid is downward, thereby pulling the hopper downward as a whole. The downward pull of the hopper compresses the corrugated cover downward, and also opens the originally closed capsule cavity, and the ultraviolet lamp originally in the closed space is also exposed. Under the action of the airflow, the folded capsule is also propped outward. Synchronously, the atomizing nozzle and the fan are started. Due to the change of the hopper, the low point of the large particles is lower each time they fall, and the liquid photosensitive resin is coated when they fall through the atomizing nozzle, and then they are quickly cured by the ultraviolet lamp of the ultraviolet lamp. After that, they are sucked into the air duct by the fan and finally collected in the aggregate barrel. The original small particles remain in the upper part of the middle barrel and continue to grow until the lowest point of the falling position reaches the position of the atomizing nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A front view of a photocuring fluidized bed for preparing encapsulated acid provided in an embodiment of the present invention;

[0020] Figure 2An exploded view of a photocurable fluidized bed for preparing encapsulated acid provided in an embodiment of the present invention;

[0021] Figure 3 A partial cross-sectional view of a photocuring fluidized bed for preparing encapsulated acid provided in an embodiment of the present invention;

[0022] Figure 4 Reason Figure 2 A magnified view of part A of the photocurable fluidized bed for preparing encapsulated acid provided in;

[0023] Figure 5 Reason Figure 3 An enlarged view of part B of the photocured fluidized bed extract for preparing encapsulated acid is provided.

[0024] In the figure: 1, upper barrel; 2, middle barrel; 3, hopper; 4, chassis; 5, bottom barrel; 6, first side column; 7, filter assembly; 8, spray gun assembly; 9, lifting seat; 10, electric cylinder; 11, lifting rod; 12, connecting rod; 13, air duct; 14, lower rotating seat; 15, lower rotating rod; 16, atomizing nozzle; 17, supply pipe; 18, corrugated cover; 19, folding capsule; 20, capsule cavity; 21, ultraviolet lamp; 22, upper port; 23, lower port 24. Aggregate barrel; 25. Filter plate; 26. Fan; 27. Upper connecting plate; 28. Lower connecting plate; 29. ​​Sink; 30. Perforated plate; 31. Wire mesh; 32. Through hole; 33. Upper connecting ear; 34. Lower connecting ear; 35. Rivet; 36. Upper rotating seat; 37. Upper rotating rod; 38. Upper mirror; 39. Lower mirror; 40. Seat; 41. Upper positioning hole; 42. Lower positioning hole; 43. Second side column; 44. Air inlet elbow. DETAILED DESCRIPTION

[0025] The above and other embodiments and advantages of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0026] In one embodiment, if Figures 1 to 5 shown.

[0027] The photocuring fluidized bed for preparing capsule acid provided in the present embodiment comprises an upper barrel body 1, a middle barrel body 2, a hopper 3, a chassis 4, and a bottom barrel 5 which are arranged in sequence from top to bottom, and also comprises a first side column 6 which is arranged on one side of the upper barrel body 1, the middle barrel body 2, the hopper 3, and the chassis 4; the middle barrel body 2 and the hopper 3 are both in a round bucket shape, the hopper 3 is used to hold the mother seed powder, a filter assembly 7 is arranged between the hopper 3 and the chassis 4, a spray gun assembly 8 is arranged on the chassis 4, the nozzle of the spray gun assembly 8 passes through the filter assembly 7 and extends into the hopper 3, the spray gun assembly 8 is used to supply liquid material to the hopper 3, a lifting seat 9 is arranged on the first side column 6, a lifting rod 11 driven by an electric cylinder 10 is arranged on the lifting seat 9, a connecting rod 12 extending toward the hopper 3 is arranged on the lifting rod 11, a C-shaped air duct 13 for connecting the connecting rod 12 is arranged on the hopper 3, a lower rotating seat 14 is rotatably connected to the lower rotating seat 14 A lower rotating rod 15, the free end of which is connected to the bottom of the middle barrel 2, a plurality of atomizing nozzles 16 distributed in an annular pattern are provided at the bottom of the middle barrel 2, the atomizing nozzles 16 are used to supply liquid photosensitive resin to the bottom of the middle barrel 2, and a supply pipe 17 connected to the plurality of atomizing nozzles 16 is embedded on the lower rotating rod 15; a corrugated cover 18 connected to the filter assembly 7 is provided at the bottom of the hopper 3, and an S-shaped folding bag connected to the bottom of the middle barrel 2 is provided on the top of the hopper 3 19. When the folding bag 19 is in the folded state, a closed bag cavity 20 is formed on the outer side of the inner wall slope of the middle barrel body 2 and the hopper 3. The folding bag 19 is provided with an ultraviolet lamp tube 21 located in the bag cavity 20. The upper end 22 of the air duct 13 is close to the top of the hopper 3, and the lower end 23 of the air duct 13 is close to the bottom of the hopper 3. The air duct 13 is connected to a collecting barrel 24. The air duct 13 is also provided with a filter plate 25 and a fan 26 located on one side of the collecting barrel 24.

[0028] In this embodiment, the photocuring fluidized bed for preparing encapsulated acid has the same principle as the traditional fluidized bed in that the mother seed powder is in a fluidized state, which is ventilated at the bottom of the bottom barrel 5, and the air agitates and boils the mother seed powder after passing through the filter assembly 7, so that the mother seed powder is in a fluidized state in the space of the middle barrel body 2. This means that the mother seed powder that was originally accumulated in the hopper 3 due to gravity is lifted up after being affected by the bottom airflow. Because the airflow circulates from bottom to top, the cross-sectional opening of the middle barrel body 2 expands from bottom to top, so the mother seed powder particles rise to a certain height and begin to fall until the bottom airflow lifts it again, thus forming a cycle in the space of the middle barrel body 2. Then, the atomized binder is transported to the granulation fluidized bed through a nozzle and evenly sprayed on the mother seed powder liquefied in the bed, thereby gradually forming particles.

[0029] The above is the basic principle of granulation. In this embodiment, in order to enable the mother seed powder to form particles of uniform size in a fluidized state and to make the particles quickly form, the principle of photocuring granulation is introduced. That is, after supplying the binder for a period of time, it has gradually differentiated into large and small particles. Relatively speaking, the low point of the large particles is lower each time they fall, and the large particles should not continue to contact the binder in the fluidized bed. Therefore, the lifting rod 11 driven by the electric cylinder 10 of the photocuring fluidized bed for preparing capsule acid is downward, thereby pulling the hopper 3 downward as a whole. The downward pull of the hopper 3 compresses the corrugated cover 18 downward, and also opens the originally closed capsule cavity 20, and the ultraviolet lamp 21 originally in the closed space is also exposed. Under the action of the airflow, the folding capsule 19 is also supported outward. It should be noted that due to the downward movement of the hopper 3 and the external support of the folding capsule 19, the space inside the hopper 3 is expanded compared to the original, and the gas flow rate in the hopper 3 is slowed down. Synchronously, the atomizing nozzle 16 and the fan 26 are started. Due to the change of the hopper 3, the large particles are positioned lower each time they fall, and are coated with liquid photosensitive resin when falling through the atomizing nozzle 16, and then quickly solidified by the ultraviolet light of the ultraviolet lamp tube 21. Afterwards, they are sucked into the air duct 13 under the action of the fan 26, and finally collected in the collection barrel 24. The original small particles remain in the upper position of the middle barrel 2 and continue to grow until the lowest point of the position when falling reaches the position of the atomizing nozzle 16. Therefore, in this embodiment, it is possible to achieve the production of particles of uniform size and to make the particles quickly formed.

[0030] In this embodiment, when the hopper 3 is not pulled downward, that is, when the folding bag 19 is in a folded state, the folding bag 19 is S-shaped. One end of the folding bag 19 abuts against the bottom of the middle barrel 2 to form a closed bag cavity 20, and at the same time, its inner wall smoothly transitions the inner wall of the middle barrel 2 and the inner wall of the hopper 3, so that the airflow from the bottom agitates the mother seed powder to boil, and finally makes the mother seed powder in the space of the middle barrel 2 in a fluidized state.

[0031] In one embodiment, if Figures 1 to 5 shown.

[0032] The light-curing fluidized bed for preparing encapsulated acid provided in this embodiment has a filter assembly 7 including an upper connecting plate 27 and a lower connecting plate 28. The upper connecting plate 27 is connected to the corrugated cover 18, and the lower connecting plate 28 is connected to the chassis 4. A sink 29 is provided on the lower connecting plate 28, and a porous plate 30 and a steel mesh 31 are sequentially provided in the sink 29. A through hole 32 is provided on the porous plate 30 and the steel mesh 31, and the nozzle of the spray gun assembly 8 passes through the through hole 32. A plurality of upper connecting ears 33 are evenly distributed around the upper connecting plate 27, and a plurality of lower connecting ears 34 are evenly distributed around the lower connecting plate 28. The plurality of upper connecting ears 33 and the plurality of lower connecting ears 34 are opposite to each other, and the two are connected by rivets 35.

[0033] In the present embodiment, the filter assembly 7 is detachably connected, and is composed of an upper connecting plate 27 and a lower connecting plate 28. In the trough 29 of the lower connecting plate 28, a porous plate 30 and a steel mesh 31 are embedded. The porous plate 30 and the steel mesh 31 allow the passing gas to form a special airflow for agitating and boiling the mother seed powder. This principle is commonly used in fluidized beds. In the present embodiment, the through holes 32 opened on the porous plate 30 and the steel mesh 31 are for the nozzle of the spray gun assembly 8 to pass through, which plays a role in fixing the nozzle to a certain extent. In the present embodiment, an upper connecting ear 33 is arranged around the upper connecting plate 27, and a lower connecting ear 34 is arranged around the lower connecting plate 28, so that the upper connecting plate 27 and the lower connecting plate 28 are detachably connected by rivets 35.

[0034] In one embodiment, if Figure 3 shown.

[0035] The photocuring fluidized bed for preparing encapsulated acid provided in this embodiment is further provided with an upper rotating seat 36 on the first side column 6, and an upper rotating rod 37 is rotatably connected to the upper rotating seat 36, and the upper rotating rod 37 is parallel to the lower rotating rod 15, and the free end of the upper rotating rod 37 is connected to the top of the middle barrel body 2, and the middle barrel body 2 and the upper barrel body 1 are detachably connected, and the middle barrel body 2 and the hopper 3 are detachably connected. Upper mirrors 38 are provided on both the front and rear sides of the middle barrel body 2. A lower mirror 39 is provided on the front side of the hopper 3.

[0036] In this embodiment, the middle barrel body 2 is rotatably connected to the first side column 6 through the upper rotating rod 37 and the lower rotating rod 15, and the middle barrel body 2 and the upper barrel body 1 are detachably connected, and the middle barrel body 2 and the hopper 3 are detachably connected, so after removing the sealing ring between the middle barrel body 2 and the upper barrel body 1 and the sealing ring between the middle barrel body 2 and the hopper 3, the middle barrel body 2 can be rotated out. Specifically, it is rotated out around the axis where the upper rotating seat 36 and the lower rotating seat 14 are located. The upper mirror 38 provided on the middle barrel body 2 and the lower mirror 39 provided on the hopper 3 are used to observe the internal conditions of the middle barrel body 2 and the hopper 3.

[0037] In one embodiment, if Figure 5 shown.

[0038] The photocuring fluidized bed for preparing capsule acid provided in this embodiment has an upper port 22 of the air duct 13 as an air inlet, a lower port 23 of the air duct 13 as an air outlet, a collecting barrel 24 is connected to the lower section of the air duct 13, a filter plate 25 is arranged between the connection between the air duct 13 and the collecting barrel 24 and the lower port 23 of the air duct 13, and is located near the connection between the air duct 13 and the collecting barrel 24, and a fan 26 is arranged between the filter plate 25 and the lower port 23 of the air duct 13, and is located near the filter plate 25.

[0039] In this embodiment, when the fan 26 is started, another airflow is formed in the hopper 3, that is, a circulating airflow that takes in air from the upper port 22 of the air duct 13 and exhausts air from the lower port 23 of the air duct 13. The effect range of this circulating airflow is small, limited to the hopper 3, and does not affect the fluidization of the middle barrel 2. However, the particles falling into the hopper 3 will be sucked into the air duct 13 under the action of the fan 26, and finally collected in the collection barrel 24. Because they fall into the collection barrel 24 due to being blocked by the filter plate 25 in the air duct 13.

[0040] In one embodiment, if Figure 3 shown.

[0041] The photocuring fluidized bed for preparing encapsulated acid provided in this embodiment has a lifting seat 9 including a seat body 40 , an upper positioning hole 41 is provided at the upper end of the seat body 40 , a lower positioning hole 42 is provided at the lower end of the seat body 40 , and a lifting rod 11 passes through the upper positioning hole 41 and the lower positioning hole 42 .

[0042] In this embodiment, by providing the seat body 40 and the upper positioning hole 41 and the lower positioning hole 42 on the seat body 40, the lifting rod 11 is positioned to guide the direction of the hopper 3 when it moves up and down.

[0043] In one embodiment, if Figure 3 shown.

[0044] The photocuring fluidized bed for preparing capsule acid provided in this embodiment also includes a second side column 43 arranged on the other side of the upper barrel body 1, the middle barrel body 2, the hopper 3, and the bottom plate 4. The second side column 43 is opposite to the first side column 6, and the first side column 6 and the second side column 43 are connected to the upper barrel body 1.

[0045] In this embodiment, the upper barrel body 1 is fixed by disposing the first side column 6 and the second side column 43 so that the first side column 6 and the second side column 43 are opposite to each other on both sides.

[0046] In one embodiment, if Figure 3 shown.

[0047] The photocuring fluidized bed for preparing capsule acid provided in this embodiment has a bottom barrel 5 and a bottom plate 4 that are connected, and an air inlet elbow 44 is provided on one side of the bottom barrel 5 .

[0048] In this embodiment, the air inlet elbow 44 of the photocuring fluidized bed for preparing encapsulated acid is actually a channel for air to enter the fluidized bed from the bottom.

[0049] The specific implementation methods described above further describe the invention purpose, technical solutions, and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A photocuring fluidized bed for preparing encapsulated acid, characterized in that: The invention comprises an upper barrel (1), a middle barrel (2), a hopper (3), a bottom plate (4), and a bottom barrel (5) which are arranged in sequence from top to bottom, and also comprises a first side column (6) which is arranged on one side of the upper barrel (1), the middle barrel (2), the hopper (3), and the bottom plate (4); The middle barrel (2) and the hopper (3) are both in a round bucket shape. The hopper (3) is used to contain mother seed powder. A filter assembly (7) is provided between the hopper (3) and the chassis (4). A spray gun assembly (8) is provided on the chassis (4). The nozzle of the spray gun assembly (8) passes through the filter assembly (7) and extends into the hopper (3). The spray gun assembly (8) is used to supply liquid material to the hopper (3). A lifting seat (9) is provided on the first side column (6). A lifting rod (11) driven by an electric cylinder (10) is provided on the lifting seat (9). The lifting rod (11) is provided with a nozzle for supplying liquid material to the hopper (3). A connecting rod (12) extending in a direction of rotation, a C-shaped air duct (13) for connecting the connecting rod (12) is provided on the hopper (3), a lower rotating seat (14) is also provided on the first side column (6), a lower rotating rod (15) is rotatably connected to the lower rotating seat (14), a free end of the lower rotating rod (15) is connected to the bottom of the middle barrel (2), a plurality of atomizing nozzles (16) distributed in an annular shape are provided at the bottom of the middle barrel (2), the atomizing nozzles (16) are used to supply liquid photosensitive resin to the bottom of the middle barrel (2), and a supply pipe (17) connected to the plurality of atomizing nozzles (16) is embedded on the lower rotating rod (15); The bottom of the hopper (3) is provided with a corrugated cover (18) connected to the filter assembly (7), and the top of the hopper (3) is provided with an S-shaped folding bag (19) connected to the bottom of the middle barrel (2). When the folding bag (19) is in a folded state, a closed bag cavity (20) is formed on the outer side of the inner wall slope of the middle barrel (2) and the hopper (3). The folding bag (19) is provided with an ultraviolet lamp (21) located in the bag cavity (20). The upper port (22) of the air duct (13) is close to the top of the hopper (3), and the lower port (23) of the air duct (13) is close to the bottom of the hopper (3). The air duct (13) is connected to a collecting barrel (24), and the air duct (13) is also provided with a filter plate (25) and a fan (26) located on one side of the collecting barrel (24).

2. The photocuring fluidized bed for preparing encapsulated acid according to claim 1, characterized in that: The filter assembly (7) comprises an upper connecting plate (27) and a lower connecting plate (28), wherein the upper connecting plate (27) is connected to the corrugated cover (18), and the lower connecting plate (28) is connected to the chassis (4), and a sinking groove (29) is provided on the lower connecting plate (28), and a porous plate (30) and a steel wire mesh (31) are sequentially arranged in the sinking groove (29), and a through hole (32) is provided on the porous plate (30) and the steel wire mesh (31), and a nozzle of the spray gun assembly (8) passes through the through hole (32).

3. The photocuring fluidized bed for preparing encapsulated acid according to claim 2, characterized in that: A plurality of upper connecting ears (33) are evenly distributed around the upper connecting plate (27), and a plurality of lower connecting ears (34) are evenly distributed around the lower connecting plate (28). The plurality of upper connecting ears (33) and the plurality of lower connecting ears (34) are opposite to each other and are connected by rivets (35).

4. The photocuring fluidized bed for preparing encapsulated acid according to claim 1, characterized in that: The first side column (6) is also provided with an upper rotating seat (36), and an upper rotating rod (37) is rotatably connected to the upper rotating seat (36). The upper rotating rod (37) is parallel to the lower rotating rod (15), and the free end of the upper rotating rod (37) is connected to the top of the middle barrel body (2). The middle barrel body (2) and the upper barrel body (1) are detachably connected, and the middle barrel body (2) and the hopper (3) are detachably connected.

5. The photocuring fluidized bed for preparing encapsulated acid according to claim 1, characterized in that: Upper mirrors (38) are provided on both the front and rear sides of the middle barrel (2).

6. The photocuring fluidized bed for preparing encapsulated acid according to claim 1, characterized in that: A downward-viewing mirror (39) is provided on the front side of the hopper (3).

7. The photocuring fluidized bed for preparing encapsulated acid according to claim 1, characterized in that: The upper port (22) of the air duct (13) is an air inlet, the lower port (23) of the air duct (13) is an air outlet, the collecting barrel (24) is connected to the lower section of the air duct (13), the filter plate (25) is arranged between the connection between the air duct (13) and the collecting barrel (24) and the lower port (23) of the air duct (13), and is located close to the connection between the air duct (13) and the collecting barrel (24), and the fan (26) is arranged between the filter plate (25) and the lower port (23) of the air duct (13), and is located close to the filter plate (25).

8. The photocuring fluidized bed for preparing encapsulated acid according to claim 1, characterized in that: The lifting seat (9) comprises a seat body (40), an upper end of the seat body (40) is provided with an upper positioning hole (41), a lower end of the seat body (40) is provided with a lower positioning hole (42), and the lifting rod (11) passes through the upper positioning hole (41) and the lower positioning hole (42).

9. The photocuring fluidized bed for preparing encapsulated acid according to claim 1, characterized in that: It also includes a second side column (43) arranged on the other side of the upper barrel body (1), the middle barrel body (2), the hopper (3), and the bottom plate (4), the second side column (43) being opposite to the first side column (6), and the first side column (6) and the second side column (43) being connected to the upper barrel body (1).

10. The photocuring fluidized bed for preparing encapsulated acid according to claim 1, characterized in that: The bottom barrel (5) is in communication with the bottom plate (4), and an air inlet elbow (44) is provided on one side of the bottom barrel (5).

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