A powder-accumulation-preventing wall-sweeping device for a spray drying tower

Abstract

The utility model relates to pharmaceutical equipment technical field especially relates to a kind of powder accumulation prevention wall cleaning device of spray drying tower.It is a kind of powder accumulation prevention wall cleaning device of spray drying tower, including main part, limiting screw rod, locking knob, sliding sleeve, first pivot, folding rod, brush and hinged rod, main part bottom fixed connection has limiting screw rod, limiting screw rod is threadedly connected with locking knob, locking knob bottom periphery fixed connection sliding sleeve, limiting screw rod lower end rotationally connects first pivot, first pivot periphery is cross-distributed rotationally connected with folding rod, folding rod outer end is all fixedly connected with brush, and each folding rod outer side top and sliding sleeve lower periphery between rotationally connected with hinged rod.The utility model is moved up and down along limiting screw rod by rotating locking knob and driving sliding sleeve, realizes the unfolding and folding of folding rod, improves the operation convenience and maintenance efficiency of equipment, reaches the effect that it is easy to operate and efficiently to complete drying tower inner wall cleaning.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical equipment technology, and in particular to a spray drying tower anti-powder-accumulation wall-sweeping device. Background Technology

[0002] In the pharmaceutical, chemical, and food industries, spray drying towers are widely used in the continuous production of powdered products as crucial equipment for the rapid drying of liquid materials. Their working principle involves dispersing liquid materials into fine droplets through a high-pressure atomizing device, allowing them to come into full contact with high-temperature hot air within the tower, thus rapidly evaporating moisture and ultimately forming a dried powder product. However, during this process, due to uneven airflow distribution, material adhesion to the walls, and improper temperature control, the dried powder easily adheres to the inner walls of the tower, resulting in powder accumulation.

[0003] If these accumulated powders are not removed in time, they will not only affect the quality stability of subsequent products, but may also coke and deteriorate due to prolonged retention, leading to problems such as equipment blockage and poor material discharge. Especially in pharmaceutical production, residual materials may cause cross-contamination between different batches, and in severe cases, may even lead to the entire batch of products being substandard, resulting in significant economic losses and quality risks. Traditional cleaning methods mostly rely on manual entry into the tower for wiping or rinsing, which is not only labor-intensive and inefficient, but also has drawbacks such as inconvenience in operation and incomplete cleaning, seriously affecting production efficiency and equipment safety.

[0004] Therefore, it is necessary to design a spray drying tower anti-powder-accumulation wall-sweeping device to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of traditional cleaning methods that rely on manual entry into the tower for wiping or rinsing, which are not only labor-intensive and inefficient, but also inconvenient to operate and incomplete in cleaning, this utility model provides a spray drying tower anti-powder-accumulation wall-sweeping device.

[0006] The technical solution is as follows: A spray drying tower anti-powder-accumulation wall-sweeping device includes a main body, a limiting screw, a locking knob, a sliding sleeve, a first rotating shaft, folding rods, a brush, and a hinge rod. The limiting screw is fixedly connected to the bottom of the main body. A locking knob is threaded onto the limiting screw. A sliding sleeve is fixedly connected to the bottom periphery of the locking knob. The lower end of the limiting screw is rotatably connected to the first rotating shaft. Folding rods are rotatably connected in a cross shape around the first rotating shaft. A brush is fixedly connected to the outer end of each folding rod. A hinge rod is rotatably connected between the top of the outer side of each folding rod and the lower periphery of the sliding sleeve.

[0007] Preferably, a spring is also included, with a spring provided between the bottom of the sliding sleeve and the first rotating shaft.

[0008] Preferably, the device also includes an adjusting sleeve, a second rotating shaft, a support frame, and locking screws. Multiple vertically arranged fixing holes are provided on both sides of the upper part of the main body. An adjusting sleeve is slidably connected to the upper part of the main body. The lower part of the adjusting sleeve is rotatably connected to the second rotating shaft. The second rotating shaft is rotatably connected to the support frame in a cross shape around its periphery. Locking screws that pass through the front and rear sides of the adjusting sleeve are slidably connected to the adjusting sleeve. The locking screws are all adapted to the fixing holes.

[0009] Preferably, a torsion spring is also included, with torsion springs provided on both sides of the support frame and between the second pivot.

[0010] Preferably, it also includes a rotating disk, which is fixedly connected to the top of the main body.

[0011] Preferably, the brush is made of food-grade or medical-grade plastic.

[0012] The present invention has the following advantages: 1. The present invention uses a rotating locking knob to drive the sliding sleeve to move up and down along the limiting screw, thereby realizing the unfolding and retraction of the folding rod, improving the ease of operation and maintenance efficiency of the equipment, and achieving the effect of cleaning the inner wall of the drying tower in a simple and efficient manner.

[0013] 2. This utility model allows the device to flexibly adjust its height vertically on the main body by setting an adjusting sleeve and a locking screw. It is connected to a cross-shaped support frame through a second rotating shaft. Under the action of a torsion spring, it can automatically unfold and stably support, meeting the usage requirements under different working conditions and achieving the effect of adapting to various specifications of drying towers and ensuring comprehensive cleaning coverage.

[0014] 3. This utility model uses a brush made of food-grade or pharmaceutical-grade materials, combined with the flexible support provided by a spring, to ensure that the brush can stably adhere to the inner wall of the drying tower without damaging the surface. This achieves the effect of efficiently removing residual powder from the wall surface and meeting GMP clean production requirements. This not only ensures the cleaning effect but also avoids the risk of contaminating the medicine, thus improving product quality and safety. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the brush, folding rod, and first rotating shaft of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the locking knob, spring, and folding rod components of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the support rod, main body, and rotating disk of this utility model.

[0019] Reference numerals: 1_Brush, 2_Folding rod, 3_Hinge rod, 4_First rotating shaft, 5_Spring, 6_Sliding sleeve, 7_Locking knob, 8_Limit screw, 9_Main body, 10_Fixing hole, 11_Adjusting sleeve, 111_Second rotating shaft, 12_Support frame, 13_Torsion spring, 14_Locking screw, 15_Rotating disk. Detailed Implementation

[0020] Example: A spray drying tower anti-powder accumulation wall sweeping device, such as... Figures 1-4 As shown, the device includes a main body 9, a limiting screw 8, a locking knob 7, a sliding sleeve 6, a first rotating shaft 4, a spring 5, a folding rod 2, a brush 1, and a hinge rod 3. The limiting screw 8 is fixedly connected to the bottom of the main body 9. The locking knob 7 is threaded onto the limiting screw 8. The sliding sleeve 6 is fixedly connected to the bottom periphery of the locking knob 7. The first rotating shaft 4 is rotatably connected to the lower end of the limiting screw 8. A spring 5 is provided between the bottom of the sliding sleeve 6 and the first rotating shaft 4 to provide a restoring force and achieve flexible support. The folding rods 2 are rotatably connected in a cross shape around the periphery of the first rotating shaft 4. The brush 1 is fixedly connected to the outer end of each folding rod 2 for cleaning the inner wall of the drying tower. The brush 1 is made of food-grade or pharmaceutical-grade plastic, which meets GMP cleanliness requirements and avoids contamination of the medicine. A hinge rod 3 is rotatably connected between the top outer side of each folding rod 2 and the lower periphery of the sliding sleeve 6.

[0021] In its initial state, the anti-powder-accumulation wall-sweeping device for a spray drying tower is in a retracted position. The folding rod 2 is connected to the sliding sleeve 6 via a hinged rod 3, and remains concentrically contracted under the action of the spring 5, facilitating entry and exit from the drying tower. When cleaning is required, the user rotates the locking knob 7, which causes the sliding sleeve 6 to move downwards along the limiting screw 8. As the sliding sleeve 6 descends, it pushes the hinged rod 3, causing the folding rod 2 to unfold outwards, thereby causing the brush 1 to adhere to the inner wall of the drying tower. The spring 5 provides flexible support during this process, ensuring that the brush 1 can stably adhere to the tower wall without damaging the surface.

[0022] like Figure 1 and Figure 4 As shown, it also includes an adjusting sleeve 11, a second rotating shaft 111, a support frame 12, a locking screw 14, a torsion spring 13, and a rotating disk 15. Multiple vertically arranged fixing holes 10 are provided on both sides of the upper part of the main body 9. The adjusting sleeve 11 is slidably connected to the upper part of the main body 9. The second rotating shaft 111 is rotatably connected to the lower part of the adjusting sleeve 11. The support frame 12 is rotatably connected to the outer periphery of the second rotating shaft 111 in a cross shape. The locking screw 14 is slidably connected to the adjusting sleeve 11, passing through its front and rear sides. The locking screw 14 is adapted to the fixing holes 10. Torsion springs 13 are provided on both sides of the support frame 12 and between the second rotating shaft 111, which are used to drive the support frame 12 to automatically return to the initial unfolded state. The rotating disk 15 is fixedly connected to the top of the main body 9, which is used to drive the entire device to rotate around the center.

[0023] When the brush 1 is ready to use after being installed, first hang the support frame 12 on the top edge of the drying tower. The support frame 12 automatically unfolds and remains open under the action of the torsion spring 13, allowing it to securely attach to the opening of the drying tower. To accommodate different height requirements, the user can adjust its position on the main body 9 using the sliding adjustment sleeve 11 according to the height of the drying tower. First, remove the locking screw 14, adjust the adjustment sleeve 11 to the appropriate position, and then insert the locking screw 14 into the corresponding fixing hole 10 to achieve positioning. This design allows the device to be adapted to various specifications of drying tower equipment, improving its versatility and applicability, thus providing a stable foundation for subsequent cleaning operations.

[0024] After the height adjustment is complete, cleaning can begin. The user can rotate the rotating disk 15 to rotate the entire sweeping structure around the center, thereby changing the cleaning area of ​​the brush 1 and achieving a comprehensive cleaning effect on the horizontal points of the drying tower's inner wall. Specifically, when the rotating disk 15 is rotated, the entire sweeping structure rotates accordingly, allowing the brush 1 to clean different horizontal positions on the drying tower's inner wall. Simultaneously, sliding the rotating disk 15 up and down allows the brush 1 to clean different vertical points on the drying tower's inner wall. During the up and down sliding process, the torsion spring 13 provides a reaction force, allowing the rotating disk 15 to automatically return to its original position after being released, thus achieving a labor-saving effect and ensuring that the device can quickly return to its initial state after the cleaning task is completed, facilitating removal or subsequent maintenance.

[0025] After completing the cleaning task, the user simply needs to rotate the locking knob 7 in the opposite direction to raise the sliding sleeve 6. The hinge rod 3 then drives the folding rod 2 to retract inward, thereby detaching the brush 1 from the tower wall. During this process, the torsion spring 13 and spring 5 work together to ensure a smooth reset of the structure, facilitating the removal of the equipment or subsequent maintenance. This reset mechanism not only enhances operational safety but also reduces manual intervention, improving the reusability and ease of maintenance of the equipment.

[0026] Through the above design, this utility model provides a compact, easy-to-operate, and highly effective anti-powder-accumulation wall-sweeping device for spray drying towers. It not only effectively removes residual powder from the inner wall of the drying tower but also possesses good adaptability and a high degree of automation, greatly improving production efficiency and product quality in the pharmaceutical industry.

Claims

1. A powder build-up preventing wall-sweeping device for a spray drying tower, characterized in that It includes a main body (9), a limiting screw (8), a locking knob (7), a sliding sleeve (6), a first rotating shaft (4), a folding rod (2), a brush (1), and a hinge rod (3). The bottom of the main body (9) is fixedly connected to the limiting screw (8). The locking knob (7) is threaded on the limiting screw (8). The sliding sleeve (6) is fixedly connected to the bottom periphery of the locking knob (7). The lower end of the limiting screw (8) is rotatably connected to the first rotating shaft (4). The periphery of the first rotating shaft (4) is rotatably connected to the folding rod (2) in a cross shape. The outer ends of the folding rod (2) are all fixedly connected to the brush (1). The top of the outer side of each folding rod (2) is rotatably connected to the lower periphery of the sliding sleeve (6). A hinge rod (3) is rotatably connected between the top of the outer side of each folding rod (2) and the lower periphery of the sliding sleeve (6).

2. A device for preventing powder build-up and walling in a spray drying tower according to claim 1, characterized in that It also includes a spring (5), with a spring (5) provided between the bottom of the sliding sleeve (6) and the first rotating shaft (4).

3. A device for preventing powder build-up on the walls of a spray drying tower according to claim 2, wherein It also includes an adjusting sleeve (11), a second rotating shaft (111), a support frame (12), and a locking screw (14). Multiple vertically arranged fixing holes (10) are provided on both sides of the upper part of the main body (9). The adjusting sleeve (11) is slidably connected to the upper part of the main body (9). The second rotating shaft (111) is rotatably connected to the lower part of the adjusting sleeve (11). The support frame (12) is rotatably connected to the outer periphery of the second rotating shaft (111) in a cross shape. The locking screw (14) is slidably connected to the adjusting sleeve (11) through its front and rear sides. The locking screw (14) is adapted to the fixing holes (10).

4. A device for preventing powder build-up on the walls of a spray drying tower according to claim 3, wherein It also includes a torsion spring (13), which is provided on both sides of the support frame (12) and between the second rotating shaft (111).

5. A device for preventing powder build-up on the walls of a spray drying tower according to claim 4, wherein It also includes a rotating disk (15), and the rotating disk (15) is fixedly connected to the top of the main body (9).

6. A device for preventing powder build-up on the walls of a spray drying tower according to claim 5, wherein The brush (1) is made of food-grade or pharmaceutical-grade plastic.

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