Cleaning mechanism of spray drying tower
By combining the cleaning and spraying components driven by servo motors, the problems of high temperature from hard friction and cleaning dead corners during the cleaning process of the spray drying tower are solved, achieving effective internal wall cleaning and product quality improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUZHONG WANGQI BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-19
AI Technical Summary
Existing spray drying towers generate high temperatures during the cleaning process due to hard friction, leading to equipment damage and safety hazards. Furthermore, traditional cleaning devices cannot adapt to variable diameter structures, resulting in cleaning dead zones.
The cleaning component, driven by a servo motor, is combined with a spray component to spray water onto the inner wall of the spray drying tower. The dirt is removed by rotating brushes, and the L-shaped plate is used to adapt to the changing diameter of the inner cavity of the spray drying tower for cleaning.
It effectively protects the service life of the spray drying tower's inner wall and cleaning components, avoids high-temperature damage, improves cleaning effect, ensures thorough cleaning, and enhances product quality.
Smart Images
Figure CN224252109U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spray drying tower cleaning technology, and in particular to a spray drying tower cleaning mechanism. Background Technology
[0002] Spray drying towers are commonly used drying equipment in industries such as chemical, food, and pharmaceutical. Their working principle involves dispersing liquid materials into fine droplets through an atomizer. These droplets rapidly evaporate moisture under the action of hot air, ultimately forming dried granular products. During long-term production, residual material particles and dirt inevitably accumulate on the inner walls, bottom, and cyclone separators of the drying tower. These deposits not only affect product quality and purity but can also lead to uneven airflow distribution within the drying tower, reducing drying efficiency and even causing equipment malfunctions.
[0003] Chinese patent CN219335254U discloses a cleaning mechanism for a spray drying tower, comprising a spray drying tower body. A cylinder is fixedly connected to the top outer wall of the spray drying tower body. One end of the cylinder's pneumatic rod passes through the spray drying tower body and is fixedly connected to a fixing ring. A rotating frame is rotatably connected to the bottom of the fixing ring. Multiple sliding grooves are formed on the outer side of the rotating frame, and sliding tubes are slidably connected within each of the multiple sliding grooves. A scraper is fixedly connected to the outer side of each sliding tube, and a tension spring is fixedly connected inside each sliding tube. This device can not only thoroughly clean the spray drying tower without requiring manual re-cleaning, improving the convenience of the cleaning mechanism, but also prevent dust from entering the motor during cleaning and affecting the normal operation of the cleaning mechanism, thus improving its effectiveness. Furthermore, it can seal the gap between the maintenance cover and the spray drying tower, improving the sealing effect of the spray drying tower.
[0004] During the cleaning process inside the spray drying tower, if there is no liquid intervention, the scraper will generate high temperatures due to hard friction between the scraper and the inner wall of the spray drying tower, which will damage both the scraper and the inner wall, shorten the service life of the equipment, and have a more serious impact on the quality of the products produced later. In addition, hard friction may also generate static electricity or sparks. In drying towers that process flammable and explosive materials, this problem may even pose a safety hazard. Utility Model Content
[0005] The main objective of this invention is to provide a spray drying tower cleaning mechanism that can effectively solve the problems mentioned above.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A spray drying tower cleaning mechanism includes a spray drying tower body, a connecting component installed at the upper port of the spray drying tower body, a cleaning component adapted to the inner cavity of the spray drying tower body and coaxially rotatably disposed on the lower middle part of the connecting component, and a spraying component suspended above the cleaning component on the lower outer side of the connecting component.
[0008] Preferably, the connecting assembly includes a connecting seat, and four connecting arms are symmetrically fixedly installed at the four ends of the outer side of the connecting seat. Two sliding frames are slidably connected to the outer surfaces of the four connecting arms. Two connecting rods are fixedly connected to the top of the two sliding frames on the same side. Two clamping plates are fixedly connected to the bottom of the two sliding frames on the same side.
[0009] Preferably, the outer surfaces of the two connecting rods on the same side are respectively fitted with limiting sleeves, and the two clamping plates on the same side are respectively clamped on the inner and outer walls of the spray drying tower body.
[0010] Preferably, the spray assembly includes an annular water base, and four ropes are bound to the top of the annular water base in a rectangular array. The ends of the four ropes away from the annular water base are respectively bound to the four connecting arms.
[0011] Preferably, the top of the annular water seat is connected to a liquid supply port, and multiple nozzles are installed in an annular array at equal intervals on the outer surface of the annular water seat.
[0012] Preferably, the cleaning component includes a servo motor, which is fixedly installed in the inner cavity of the connecting seat. The output shaft of the servo motor extends through into the inner cavity of the spray drying tower body. The output shaft of the servo motor is fixedly connected to a lead screw via a coupling. A connecting plate is coaxially fixedly connected to the outer surface of the output shaft of the servo motor. Multiple sleeve rods are fixedly installed in a ring array at the bottom end of the connecting plate away from the axis. Multiple sliding rods are slidably connected to the lower ends of the multiple sleeve rods. The bottom ends of the multiple sliding rods are jointly fixedly connected to an outer ring seat.
[0013] Preferably, an inner ring seat is concentrically rotatably connected to the inner surface of the outer ring seat, and the inner surface of the inner ring seat is threadedly connected to the outer surface of the lead screw. A plurality of hinge seats one are installed in a ring array at the top of the outer ring seat away from the middle. A plurality of hinge rods are respectively hinged in the inner cavity of the plurality of hinge seats one. A plurality of hinge seats two are respectively hinged at the ends of the plurality of hinge rods away from the plurality of hinge seats one. A plurality of L-shaped plates are respectively fixedly connected to the end faces of the plurality of hinge seats two away from the plurality of hinge rods.
[0014] Preferably, two brushes are glued together on the bottom end of the plurality of L-shaped plates and on the end face near the inner cavity surface of the spray drying tower body.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. This utility model uses a cleaning component to rotate and wipe away residual material particles and dirt adhering to the inner wall of the spray drying tower body. During this process, a spray component sprays water onto the inner wall of the spray drying tower body and the brush, avoiding high temperatures generated by hard friction during high-speed rotation cleaning. This effectively protects the service life of the inner wall of the spray drying tower body and the cleaning component, and improves the cleaning effect and product quality.
[0017] 2. This utility model uses a servo motor to drive the brushes on multiple L-shaped plates to rotate and clean, while also driving multiple L-shaped plates to slide vertically according to the variable diameter shape of the inner cavity of the spray drying tower. This effectively removes stubborn dirt at different heights and avoids the cleaning dead angle problem caused by the inability of traditional fixed-position cleaning devices to adapt to the variable diameter structure, thus further improving the cleaning effect. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a partial cross-sectional structural diagram of the present invention.
[0020] Figure 3 This is a schematic diagram of the connection structure between the connecting component and the spraying component in this utility model;
[0021] Figure 4 This is a schematic diagram of the disassembled structure of the upper part of the cleaning component in this utility model;
[0022] Figure 5 This is a schematic diagram of the disassembled structure of the lower part of the cleaning component in this utility model.
[0023] Figure 6 This is a schematic diagram of the connection structure between the hinge rod and the L-shaped plate in this utility model.
[0024] In the diagram: 1. Spray drying tower body; 2. Connecting assembly; 21. Connecting seat; 22. Connecting arm; 23. Sliding frame; 231. Connecting rod; 232. Limiting sleeve; 24. Clamping plate; 3. Spray assembly; 31. Annular water seat; 32. Rope; 33. Liquid supply port; 34. Nozzle; 4. Cleaning assembly; 41. Servo motor; 42. Connecting plate; 43. Lead screw; 431. Sleeve rod; 44. Outer ring seat; 441. Sliding rod; 45. Inner ring seat; 46. Hinge seat one; 47. Hinge rod; 48. Hinge seat two; 49. L-shaped plate; 491. Brush. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] like Figures 1-6 As shown, a spray drying tower cleaning mechanism includes a spray drying tower body 1, a connecting component 2 installed at the upper port of the spray drying tower body 1, a cleaning component 4 adapted to the inner cavity of the spray drying tower body 1 and coaxially rotatably disposed at the lower middle part of the connecting component 2, and a spraying component 3 suspended above the cleaning component 4 on the lower outer side of the connecting component 2.
[0027] In practical use, this solution involves installing the device at the upper port of the spray drying tower body 1 via the connecting component 2. The cleaning component 4 located at the lower part of the connecting component 2 rotates and wipes away residual material particles and dirt adhering to the inner wall of the spray drying tower body 1. During this process, the spraying component 3 sprays water onto the inner wall of the spray drying tower body 1 and the brush 491, avoiding high temperatures generated by hard friction during high-speed rotation cleaning. This effectively protects the service life of the inner wall of the spray drying tower body 1 and the cleaning component 4, improving the cleaning effect and product quality.
[0028] Specifically, the connecting component 2 includes a connecting seat 21. Four connecting arms 22 are symmetrically fixedly installed at the four ends of the outer side of the connecting seat 21. Two sliding frames 23 are slidably connected to the outer surfaces of the four connecting arms 22. Two connecting rods 231 are fixedly connected to the top of the two sliding frames 23 on the same side. Two clamping plates 24 are fixedly connected to the bottom of the two sliding frames 23 on the same side.
[0029] Two connecting rods 231 on the same side are respectively fitted with limiting sleeves 232 on their outer surfaces, and two clamping plates 24 on the same side are respectively clamped on the inner and outer walls of the spray drying tower body 1.
[0030] Slide the two sliding frames 23 on each connecting arm 22 so that they come into contact with each other. During this process, the two nozzles 34 at their bottom ends clamp the upper port side wall of the spray drying tower body 1. The connecting rods 231 on the two sliding frames 23 are clamped by the limiting rubber sleeves 232, thus preventing the two sliding frames 23 from driving the two clamping plates 24 to move unnecessarily.
[0031] After the connecting seat 21 is installed on the upper port of the spray drying tower body 1, the inner wall of the spray drying tower body 1 is sprayed with liquid by the spray assembly 3 to avoid damage caused by the high temperature generated by hard friction when the cleaning assembly 4 under the connecting assembly 2 rotates to clean the inner wall of the spray drying tower body 1.
[0032] Specifically, the cleaning component 4 includes a servo motor 41, which is fixedly installed in the inner cavity of the connecting seat 21. The output shaft of the servo motor 41 extends through into the inner cavity of the spray drying tower body 1. The output shaft of the servo motor 41 is fixedly connected to a lead screw 43 via a coupling. A connecting plate 42 is coaxially fixedly connected to the outer surface of the output shaft of the servo motor 41. Multiple sleeve rods 431 are fixedly installed in a ring array at the bottom end of the connecting plate 42 away from the axis. Multiple sliding rods 441 are slidably connected to the lower ends of the multiple sleeve rods 431 respectively. The bottom ends of the multiple sliding rods 441 are all fixedly connected to an outer ring seat 44.
[0033] An inner ring seat 45 is concentrically rotatably connected to the inner surface of the outer ring seat 44. The inner surface of the inner ring seat 45 is threadedly connected to the outer surface of the lead screw 43. Multiple hinge seats 46 are installed in a ring array at the top of the outer ring seat 44 away from the middle. Multiple hinge rods 47 are hingedly installed in the inner cavities of the multiple hinge seats 46. Multiple hinge seats 48 are hingedly installed at the ends of the multiple hinge rods 47 away from the multiple hinge seats 46. Multiple L-shaped plates 49 are fixedly connected to the end faces of the multiple hinge seats 48 away from the multiple hinge rods 47.
[0034] When the servo motor 41 is started, the connecting disk 42, which is fixedly connected to the outer surface of the output shaft driver of the servo motor 41, rotates. The rotation of the connecting disk 42 drives the outer ring seat 44, which is rotatably connected to the outer surface of the inner ring seat 45, to rotate together through the sleeve rod 431 and the sliding rod 441. When the outer ring seat 44 rotates, multiple L-shaped plates 49, which are rotatably hinged at the top of the outer ring seat 44, rotate together. A brush 491 is glued to the end face of the L-shaped plate 49 near the inner surface of the spray drying tower body 1. Thus, under the drive of the servo motor 41, the brush 491 rotates at high speed to wipe away the dirt on the inner surface of the spray drying tower body 1.
[0035] The output shaft of the servo motor 41 is fixedly connected to the lead screw 43 via a coupling. The inner ring seat 45, which is coaxially threaded to the outer surface of the lead screw 43, is rotatably connected to the inner ring seat 44. Thus, when the servo motor 41 drives the lead screw 43 to rotate forward, the inner ring seat 45, which is threaded on its outer surface, drives multiple L-shaped plates 49 to slide downward along the vertical direction of the lead screw 43 through the outer ring seat 44. This allows the brush 491 to clean the lower side of the inner cavity of the spray drying tower body 1 vertically downward when rotating.
[0036] The L-shaped plate 49 and the outer ring seat 44 are hinged and rotatably connected by a hinge rod 47. When the variable diameter part on the lower side of the inner cavity of the spray drying tower body 1 is wiped, the L-shaped plate 49 descends with the displacement of the outer ring seat 44 and rotates vertically with the outer ring seat 44. In this way, the centrifugal force generated by the rotation of the L-shaped plate 49 always keeps it in contact with the inner cavity of the spray drying tower body 1, and when the lower outer ring seat 44 descends and slides, it creates a space that matches the variable diameter size of the inner cavity of the spray drying tower body 1.
[0037] Furthermore, specifically, the spray assembly 3 includes an annular water seat 31, and four ropes 32 are bound to the top of the annular water seat 31 in a rectangular array. The ends of the four ropes 32 away from the annular water seat 31 are respectively bound to four connecting arms 22.
[0038] A liquid supply port 33 is connected to the top of the annular water seat 31, and multiple nozzles 34 are installed in an annular array at equal intervals on the outer surface of the annular water seat 31.
[0039] An external water source is connected via a water pump. The pump draws water from the external source and delivers it to the annular water seat 31 through the liquid supply port 33. As the annular water seat 31 becomes increasingly larger, the water in the annular water seat 31 is sprayed onto the inner wall of the spray drying tower body 1 through nozzles 34 due to high pressure. After being sprayed onto the inner wall of the spray drying tower body 1, the water flows downward along the inner wall of the spray drying tower body 1. Thus, the brush 491, which is in contact with the inner wall of the spray drying tower body 1, absorbs the flowing water through capillary action, thereby wetting both the brush 491 and the inner wall of the spray drying tower body 1.
[0040] It should be noted that the specific installation method, circuit connection method and control method of the servo motor 41 used in this utility model are all conventional designs, and will not be described in detail in this utility model.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A spray drying tower cleaning mechanism, comprising a spray drying tower body (1), characterized in that: A connecting component (2) is installed at the upper port of the spray drying tower body (1). A cleaning component (4) adapted to the inner cavity of the spray drying tower body (1) is coaxially rotatably arranged on the lower middle part of the connecting component (2). A spraying component (3) is suspended on the upper part of the cleaning component (4) on the lower outer side of the connecting component (2).
2. The spray drying tower cleaning mechanism according to claim 1, characterized in that: The connecting assembly (2) includes a connecting seat (21). Four connecting arms (22) are symmetrically fixedly installed at the four ends of the outer side of the connecting seat (21). Two sliding frames (23) are slidably connected to the outer surfaces of the four connecting arms (22). Two connecting rods (231) are fixedly connected to the top of the two sliding frames (23) on the same side. Two clamping plates (24) are fixedly connected to the bottom of the two sliding frames (23) on the same side.
3. The spray drying tower cleaning mechanism according to claim 2, characterized in that: The outer surfaces of the two connecting rods (231) on the same side are respectively fitted with limiting sleeves (232), and the two clamping plates (24) on the same side are respectively clamped on the inner and outer walls of the spray drying tower body (1).
4. The spray drying tower cleaning mechanism according to claim 2, characterized in that: The spray assembly (3) includes an annular water seat (31), and four ropes (32) are bound to the top of the annular water seat (31) in a rectangular array. The ends of the four ropes (32) away from the annular water seat (31) are respectively bound to the four connecting arms (22).
5. A spray drying tower cleaning mechanism according to claim 4, characterized in that: The top of the annular water seat (31) is connected to a liquid supply port (33), and multiple nozzles (34) are installed in an annular array at equal intervals on the outer surface of the annular water seat (31).
6. The spray drying tower cleaning mechanism according to claim 2, characterized in that: The cleaning component (4) includes a servo motor (41), which is fixedly installed in the inner cavity of the connecting seat (21). The output shaft of the servo motor (41) extends through into the inner cavity of the spray drying tower body (1). The output shaft of the servo motor (41) is fixedly connected to a lead screw (43) via a coupling. A connecting plate (42) is coaxially fixedly connected to the outer surface of the output shaft of the servo motor (41). Multiple sleeve rods (431) are fixedly installed in a ring array at the bottom end of the connecting plate (42) away from the axis. Multiple sliding rods (441) are slidably connected to the lower ends of the multiple sleeve rods (431). The bottom ends of the multiple sliding rods (441) are fixedly connected to an outer ring seat (44).
7. A spray drying tower cleaning mechanism according to claim 6, characterized in that: The inner surface of the outer ring seat (44) is concentrically rotatably connected to the inner ring seat (45). The inner surface of the inner ring seat (45) is threadedly connected to the outer surface of the lead screw (43). Multiple hinge seats one (46) are installed in a ring array at the top of the outer ring seat (44) away from the middle. Multiple hinge rods (47) are hingedly installed in the inner cavities of the multiple hinge seats one (46). Multiple hinge seats two (48) are hingedly installed at the ends of the multiple hinge rods (47) away from the multiple hinge seats one (46). Multiple L-shaped plates (49) are fixedly connected to the end faces of the multiple hinge seats two (48) away from the multiple hinge rods (47).
8. A spray drying tower cleaning mechanism according to claim 7, characterized in that: Two brushes (491) are glued together on the bottom end of the multiple L-shaped plates (49) and the end face near the inner cavity surface of the spray drying tower body (1).