Boiling dryer for medicine production
By designing symmetrical and rotating hopper supports in the fluidized bed dryer for pharmaceutical production, rapid unloading and reloading were achieved, solving the problem of idle fluidized bed, improving drying efficiency and temperature control, and shortening drying time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG SANSHUN PHARM CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-12
AI Technical Summary
In existing fluidized bed dryers used in pharmaceutical production, the fluidized bed is idle during unloading and reloading, which leads to prolonged drying time and affects efficiency.
The design incorporates symmetrical and rotating hopper supports, enabling rapid unloading and reloading. A new hopper support is connected via a central lifting electric cylinder and a rotating connecting plate, facilitating rapid unloading and reloading, reducing time intervals, and minimizing temperature drops.
缩短了干燥时间，提高了干燥效率，减少了物料取放时间，降低了温度下降幅度。
Smart Images
Figure CN224230492U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the field of drug drying technology, and more specifically to a fluidized bed dryer for drug production. Background Technology
[0002] A fluidized bed dryer is a drying equipment commonly used in the pharmaceutical, food, and chemical industries. The fluidized bed dryer uses hot air flow to make the material to be dried fluidized in the drying chamber, just like "boiling". The hot air comes into full contact with the material, and heat and mass are transferred, so that the moisture in the material evaporates rapidly, thereby achieving the purpose of drying.
[0003] The fluidized bed is an important drying component in a fluidized bed dryer. It is the place where materials are dried. It is usually cylindrical or rectangular. The material enters the fluidized bed from the feed inlet and is in a fluidized state under the action of hot air to achieve uniform drying.
[0004] During use, the medicine needs to be placed on the moving frame, and then the moving frame moves the hopper containing the medicine between the fluidized bed and the sealing cover. Then, the lifting mechanism moves the sealing cover upward, thereby fixing the hopper below the fluidized bed. The fan sends hot air into the sealing cover, and the sealing cover blows the medicine in the hopper from bottom to top into the fluidized bed for drying.
[0005] However, in practice, it has been noted that during unloading, a moving frame is needed to move the hopper, and the medicine in the hopper must be removed and poured out before new medicine can be added. Then the hopper is pushed back into the fluidized bed for drying. During this unloading and reloading process, the fluidized bed is completely idle, and the internal temperature drops rapidly. When drying again, the internal temperature of the fluidized bed needs to be raised again, which leads to a longer drying time and affects the drying efficiency. Utility Model Content
[0006] The purpose of this invention is to provide a fluidized bed dryer for pharmaceutical production. It features two symmetrical hopper supports that are movable and rotatable, allowing for rapid unloading and reloading. During fluidized bed operation, the dried hoppers are unloaded, and the reloading interval is short, resulting in a slower internal temperature drop. This shortens the re-drying time and reduces the time spent loading and unloading materials, thus improving the efficiency of the fluidized bed dryer. This addresses the technical problems mentioned in the background section.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A fluidized bed dryer for pharmaceutical production includes a fluidized bed body symmetrically and fixedly connected to a frame body on both sides. A conical bin frame is provided below the fluidized bed body, and an air inlet hood is provided at the bottom of the conical bin frame. The air inlet hood is fixedly connected to the frame body via a lifting electric cylinder.
[0009] The storage hopper is equipped with a quick material change rack on its side. The quick material change rack includes a movable base frame, and a central support column is fixedly connected to the top of the movable base frame. Both ends of the central support column are movably connected to connecting plates.
[0010] The connecting plate is symmetrically fixedly connected to U-shaped hopper frames on both sides, and U-shaped hopper frames are opened at both ends of the U-shaped hopper frames. The upper and lower parallel U-shaped hopper frames are fixedly connected to the two sides of the reinforcing bend pipe.
[0011] As a further technical solution of this utility model, the two ends of the central support column are rotatably connected to the connecting plate through bearings, and the connecting plate has interlocking positioning holes, and L-shaped inserts are inserted into the positioning holes.
[0012] As a further technical solution of this utility model, the movable base frame is provided with positioning holes corresponding to the positioning holes on the connecting plate, and the end of the L-shaped plug rod passes through the positioning hole in the connecting plate and is inserted into the positioning hole on the movable base frame.
[0013] As a further technical solution of this utility model, the bottom of the mobile base frame is fixedly connected with universal casters in a rectangular array, and the storage bin is located in the upper U-shaped bin frame, while the lower U-shaped bin frame is located below the air intake hood.
[0014] As a further technical solution of this utility model, the storage silo includes a conical silo frame located between the boiling bed and the air inlet hood, an air inlet plate is fixedly connected in the conical silo frame, and both sides of the conical silo frame are integrally provided with grooved ear plates.
[0015] As a further technical solution of this utility model, the conical bin frame is provided with an arc-shaped groove at the bottom corresponding to the annular slot, and the arc-shaped groove and the annular slot are engaged in a locking fit.
[0016] As a further technical solution of this utility model, the lifting electric cylinders are arranged in a ring array on the side of the air intake hood, and two lifting electric cylinders are fixedly connected to the arc-shaped bracket on the side of the frame body, while the output rod end of the lifting electric cylinder is fixedly connected to the conical frame.
[0017] As a further technical solution of this utility model, a gas filter is fixedly connected to the side of the air intake hood away from the quick material change rack through a pipe, while the other side of the gas filter is connected to the drying chamber through a pipe.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. In this utility model, the storage hopper is placed in the U-shaped hopper rack on either side, and the dried storage hopper is taken out using the U-shaped hopper rack on the other side. Then, through the rotational cooperation between the central support column and the connecting plate, the storage hoppers on both sides can be quickly changed positions, shortening the time consumed when changing materials. Furthermore, since the opening time under the fluidized bed is short, the temperature drop inside the fluidized bed is small. During the second drying, the temperature inside the fluidized bed can quickly reach the required temperature, thereby shortening the drying time and improving the drying efficiency of the dryer.
[0020] 2. In this utility model, the L-shaped insert is pulled upwards, and the end of the L-shaped insert separates from the positioning hole on the movable base frame. Then, the U-shaped hopper frames on both sides are rotated. After the rotation is completed, the L-shaped insert is slid downwards in the positioning hole on the connecting plate until the end of the L-shaped insert is inserted into the positioning hole on the movable base frame, thereby fixing the position of the U-shaped hopper frame and preventing the vibration caused by the quick material change frame during movement from causing the U-shaped hopper frame to rotate, thus achieving the positioning effect.
[0021] 3. In this utility model, both ends of the conical silo frame are integrally provided with supporting grooved ear plates, and both ends of the U-shaped silo frame are provided with annular slots corresponding to the grooved ear plates to position the grooved ear plates and prevent the conical silo frame from slipping off the U-shaped silo frame due to inertia during the movement of the quick material change frame. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model in use.
[0023] Figure 2 This utility model Figure 1 Another perspective view.
[0024] Figure 3 This utility model Figure 2 Another perspective view.
[0025] Figure 4 This utility model Figure 3 A magnified view of a portion of the image.
[0026] Figure 5 This is a schematic diagram showing the location and structure of the storage bin and quick-change rack in this utility model.
[0027] Figure 6 This is a three-dimensional structural diagram of the quick-change rack in this utility model.
[0028] Figure 7 This utility model Figure 6A magnified view of a portion of the image.
[0029] In the picture:
[0030] Negative pressure suction pipe-1, boiling bed body-2, storage hopper-3, conical hopper frame-31, air inlet plate-32, grooved ear plate-33, air inlet hood-4, frame body-5, arc-shaped support-6, lifting electric cylinder-7, quick material change rack-8, moving base frame-81, universal moving casters-82, central support column-83, connecting plate-84, U-shaped hopper frame-85, annular groove-86, reinforced bend-pipe-87, positioning hole-88, L-shaped insertion rod-89, drying box-9, gas filter-10. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Please see Figure 1-7 This utility model provides a fluidized bed dryer for pharmaceutical production, including a fluidized bed 2 with a frame body 5 fixedly connected on both sides symmetrically. A conical bin frame 31 is provided below the fluidized bed 2, and an air inlet hood 4 is provided at the bottom of the conical bin frame 31. The air inlet hood 4 is fixedly connected to the frame body 5 through a lifting electric cylinder 7.
[0033] The storage bin 3 is provided with a quick material change rack 8 on its side. The quick material change rack 8 includes a movable base frame 81. A central support column 83 is fixedly connected to the top of the movable base frame 81. Both ends of the central support column 83 are movably connected to connecting plates 84.
[0034] U-shaped silo frames 85 are symmetrically fixedly connected to both sides of the connecting plate 84, and U-shaped silo frames 85 are provided at both ends of the U-shaped silo frames 85. Reinforcing bends 87 are fixedly connected to both sides of the two parallel U-shaped silo frames 85.
[0035] By adopting the above technical solution, the storage hopper 3 is placed in the U-shaped hopper rack 85 on either side, and the dried storage hopper 3 is taken out using the U-shaped hopper rack 85 on the other side. Then, through the rotational cooperation between the central support column 83 and the connecting plate 84, the storage hoppers 3 on both sides are quickly changed positions, shortening the time consumed when changing materials. Furthermore, since the opening time below the fluidized bed 2 is short, the temperature drop inside the fluidized bed 2 is small. During the second drying, the temperature inside the fluidized bed 2 can quickly reach the required temperature, thereby shortening the drying time and improving the drying efficiency of the dryer.
[0036] Furthermore, the two ends of the central support column 83 are rotatably connected to the connecting plate 84 via bearings, and the connecting plate 84 has interlocking positioning holes 88, and L-shaped insert rods 89 are inserted into the positioning holes 88.
[0037] Furthermore, the movable base frame 81 is provided with positioning holes 88 corresponding to the positioning holes 88 on the connecting plate 84, and the end of the L-shaped insert rod 89 passes through the positioning holes 88 in the connecting plate 84 and is inserted into the positioning holes 88 on the movable base frame 81.
[0038] By adopting the above technical solution, the L-shaped insert rod 89 is pulled upward, and the end of the L-shaped insert rod 89 separates from the positioning hole 88 on the movable base frame 81. Then, the U-shaped hopper frames 85 on both sides are rotated. After the rotation is completed, the L-shaped insert rod 89 is slid downward in the positioning hole 88 on the connecting plate 84 until the end of the L-shaped insert rod 89 is inserted into the positioning hole 88 on the movable base frame 81, thereby fixing the position of the U-shaped hopper frame 85 and preventing the vibration caused by the quick material change frame 8 from rotating, thus achieving the positioning effect.
[0039] Furthermore, the bottom of the movable base frame 81 is fixedly connected with omnidirectional casters 82 in a rectangular array, and the storage bin 3 is located in the upper U-shaped bin frame 85, while the lower U-shaped bin frame 85 is located below the air intake hood 4.
[0040] Furthermore, the storage silo 3 includes a conical silo frame 31 located between the boiling bed 2 and the air inlet hood 4. An air inlet plate 32 is fixedly connected in the conical silo frame 31, and both sides of the conical silo frame 31 are integrally provided with grooved ear plates 33.
[0041] More specifically, the conical frame 31 has an arc-shaped groove at the bottom corresponding to the annular slot 86, and the arc-shaped groove engages with the annular slot 86.
[0042] By adopting the above technical solution, both ends of the conical silo frame 31 are integrally provided with supporting grooved ear plates 33, and both ends of the U-shaped silo frame 85 are provided with annular slots 86 corresponding to the grooved ear plates 33 to position the grooved ear plates 33 and prevent the conical silo frame 31 from slipping off the U-shaped silo frame 85 due to the inertia of the quick material changing frame 8 moving the conical silo frame 31.
[0043] Furthermore, the lifting electric cylinders 7 are arranged in a ring array on the side of the air intake hood 4, and two lifting electric cylinders 7 are fixedly connected to the arc-shaped bracket 6 on the side of the frame body 5, while the output rod end of the lifting electric cylinder 7 is fixedly connected to the conical frame 31.
[0044] Furthermore, the side of the air intake hood 4 away from the quick material change rack 8 is fixedly connected to a gas filter 10 via a pipe, and the other side of the gas filter 10 is connected to the drying chamber 9 via a pipe.
[0045] More specifically, an electric heating tube is installed inside the drying chamber 9. The electric heating tube can heat the airflow inside the drying chamber 9. The hot airflow inside the drying chamber 9 enters the air inlet hood 4 through the pipe, so that the airflow blows the material above the air inlet plate 32 into fluid and towards the boiling bed 2 from top to bottom.
[0046] Furthermore, an air intake fan is fixedly connected to the other end of the drying chamber 9, which introduces external airflow into the inside of the drying chamber 9.
[0047] Furthermore, a negative pressure suction pipe 1 is fixedly connected to the end of the fluidized bed 2, and the hot air flow for drying the material moves from bottom to top to the inner top of the fluidized bed 2, and is finally discharged through the negative pressure suction pipe 1.
[0048] The working principle of this utility model is as follows: In use, first, the storage hopper 3 containing the medicine to be dried is placed in the U-shaped hopper frame 85 on either side. Then, the quick-change frame 8 is moved, aligning the other side of the U-shaped hopper frame 85 with the storage hopper 3 and pushing it in. Then, the lifting cylinder 7 moves the air intake hood 4 downwards. At this time, the storage hopper 3 above the air intake hood 4 falls into the U-shaped hopper frame 85, and the grooved ear plate 33 engages in the annular groove 86 to position the storage hopper 3. Then, the quick-change frame 8 is moved backwards to remove the storage hopper 3 below the boiling bed 2 from between the boiling bed 2 and the air intake hood 4. The L-shaped insert rod 89 is then pulled upwards, and the end of the L-shaped insert rod 89 moves from the moving... The material is separated from the positioning hole 88 on the base frame 81, and then the U-shaped hopper frames 85 on both sides are rotated to exchange the positions of the material to be dried and the dried material. After the rotation is completed, the L-shaped insert 89 is slid down through the positioning hole 88 on the connecting plate 84 until the end of the L-shaped insert 89 is inserted into the positioning hole 88 on the movable base frame 81 to fix the position of the U-shaped hopper frame 85. Then the storage hopper 3 is fixed below the fluidized bed body 2 for continuous drying. When the fluidized bed dryer is working, the storage hopper 3 that has just been removed can be moved to the required position for quick replacement. The structure is simple, the operation is very convenient, and the labor intensity is effectively reduced.
[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A fluidized bed dryer for pharmaceutical production, characterized in that: The fluidized bed (2) includes a frame body (5) that is symmetrically fixedly connected on both sides. A conical bin frame (31) is provided below the fluidized bed (2), and an air inlet hood (4) is provided at the bottom of the conical bin frame (31). The air inlet hood (4) is fixedly connected to the frame body (5) by a lifting electric cylinder (7). The storage bin (3) is provided with a quick material change rack (8) on the side. The quick material change rack (8) includes a movable base frame (81). A central support column (83) is fixedly connected above the movable base frame (81). Both ends of the central support column (83) are movably connected with connecting plates (84). The connecting plate (84) is symmetrically fixedly connected to the two sides of the U-shaped hopper frame (85), and the two ends of the U-shaped hopper frame (85) are both provided with U-shaped hopper frames (85). The two parallel U-shaped hopper frames (85) are fixedly connected to the two sides of the upper and lower sides with reinforcing bends (87).
2. The fluidized bed dryer for pharmaceutical production according to claim 1, characterized in that: The two ends of the central support column (83) are rotatably connected to the connecting plate (84) through bearings, and the connecting plate (84) has interlocking positioning holes (88), and L-shaped inserts (89) are inserted into the positioning holes (88).
3. The fluidized bed dryer for pharmaceutical production according to claim 2, characterized in that: The movable base (81) is provided with a positioning hole (88) corresponding to the positioning hole (88) on the connecting plate (84), and the end of the L-shaped insert (89) passes through the positioning hole (88) in the connecting plate (84) and is inserted into the positioning hole (88) on the movable base (81).
4. The fluidized bed dryer for pharmaceutical production according to claim 3, characterized in that: The bottom of the mobile base frame (81) is fixedly connected with omnidirectional casters (82) in a rectangular array. The storage bin (3) is located in the upper U-shaped bin frame (85), while the lower U-shaped bin frame (85) is located below the air intake hood (4).
5. The fluidized bed dryer for pharmaceutical production according to claim 4, characterized in that: The storage silo (3) includes a conical silo frame (31) located between the boiling bed (2) and the air inlet hood (4). An air inlet plate (32) is fixedly connected in the conical silo frame (31), and both sides of the conical silo frame (31) are integrally provided with grooved ear plates (33).
6. The fluidized bed dryer for pharmaceutical production according to claim 5, characterized in that: The conical rack (31) has an arc-shaped groove at the bottom corresponding to the annular slot (86), and the arc-shaped groove engages with the annular slot (86).
7. The fluidized bed dryer for pharmaceutical production according to claim 6, characterized in that: The lifting electric cylinders (7) are arranged in a ring array on the side of the air intake hood (4), and the two lifting electric cylinders (7) are fixedly connected to the arc-shaped bracket (6) on the side of the frame body (5), while the output rod end of the lifting electric cylinder (7) is fixedly connected to the conical frame (31).
8. The fluidized bed dryer for pharmaceutical production according to claim 7, characterized in that: The air intake hood (4) is fixedly connected to a gas filter (10) on the side away from the quick material change rack (8) via a pipe, while the other side of the gas filter (10) is connected to the drying box (9) via a pipe.