Easy-to-clean spray calcination device
By introducing a servo motor-driven cleaning component and a detachable structure into the spray dryer, the problem of particulate material adhesion and blockage on the inner wall of the spray dryer is solved, achieving automated cleaning and convenient equipment maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI LISHENG POWDER TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-30
AI Technical Summary
During the use of spray dryers, particulate materials tend to adhere to the inner wall, causing blockages and making cleaning difficult, especially for sugar-containing particles and high-moisture materials, which affects material feeding and equipment maintenance.
A spray calcination device that is easy to clean is designed. It adopts a cleaning component driven by a servo motor, including a rotating rod, a cleaning plate, and a scraper ring. It cleans particulate materials on the inner wall of the dryer by mechanical means. Combined with the detachable main structure of the dryer, it realizes automated cleaning.
It effectively prevents particulate materials from adhering to the inner wall for extended periods, keeps the inside of the dryer clean, avoids blockages, and simplifies the disassembly and cleaning process of the equipment.
Smart Images

Figure CN224422797U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of spray dryer technology, and in particular to a spray calcination apparatus that is easy to clean. Background Technology
[0002] The atomizer of the spray dryer disperses the material into fine water droplets, which are like a mist. The droplets enter the drying tower and come into contact with hot air. The hot air quickly evaporates the moisture in the dispersed material. The dried material then follows the hot air into the cyclone separator, where it is separated from the air. The separated material then flows downwards into the material collection bottle.
[0003] Chinese patent CN215611415U discloses a spray calcination device that is easy to disassemble and clean. By separating the tower body and the tower base, it is easy for staff to disassemble, clean and maintain the spray calcination device, thus improving its practicality.
[0004] However, during the use of spray dryers, there is a problem where particles adhere to the inner wall of the dryer as they fall from the atomized material to the lower discharge port. This is especially true for particles containing sugar or with high moisture content. If not cleaned in time, the particles will accumulate and block the discharge port, affecting the material flow. Furthermore, the internal temperature will soften the sugar-containing particles and cause them to stick to the side wall, making it difficult to clean the dryer after disassembly. Therefore, a spray calcination device that is easy to clean has been designed to solve the above-mentioned problems. Utility Model Content
[0005] To address this problem, this application provides a spray calcination apparatus that is easy to clean.
[0006] The spray calcination device for easy cleaning provided in this application adopts the following technical solution:
[0007] An easy-to-clean spray calcination device includes a dryer body, a feeding frame fixedly installed at the lower end of the dryer body, a servo motor installed inside the feeding frame, and a cleaning component installed on the servo motor;
[0008] The cleaning assembly includes a rotating rod fixedly installed at the output end of a servo motor. A mounting rod is fixedly connected to one side of the rotating rod, and a cleaning plate is fixedly connected to one side of the mounting rod. The cleaning plate is inclined and fits against the lower side wall of the dryer body.
[0009] Preferably, the cleaning assembly further includes a reciprocating lead screw, the lower end of which is fixedly connected to a rotating rod, and the upper end of which is fixedly connected to a limiting block.
[0010] Preferably, a movable frame is threaded onto the reciprocating lead screw, and a scraper ring is fixedly connected to the end of the movable frame away from the reciprocating lead screw, with the scraper ring having a blade-like edge.
[0011] Preferably, the movable frame has a limiting groove, the limiting groove is slidably connected to a support rod, the lower end of the support rod is fixedly connected to a protective net, and the protective net is fixedly installed inside the dryer body.
[0012] Preferably, the dryer body is composed of a top frame and a bottom frame, and a number of insert rods are fixedly installed on the side of the bottom frame. A slot is opened on one side of each insert rod, and a corresponding insert frame is fixedly installed on the side of the top frame.
[0013] Preferably, a limiting rod is threadedly connected to one side of the insertion frame, and the limiting rod is inserted into the slot of the insertion rod.
[0014] Preferably, a protective frame is fixedly connected to the lower end of the servo motor, and support rods are fixedly installed on both sides of the protective frame, with the support rods fixedly connected to the side wall of the unloading frame.
[0015] In summary, this application includes the following beneficial technical effects:
[0016] In this invention, the cleaning components installed inside the dryer body can clean both the upper and lower side walls of the dryer body. This prevents particles from adhering to the side walls for too long during use, thus avoiding contamination of the side walls and blockage of the discharge channel near the discharge frame at the lower end. This keeps the inside of the dryer body clean and facilitates subsequent disassembly and cleaning of the dryer. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the main body of the embodiment of the application;
[0018] Figure 2 This is a partial cross-sectional view of the main body of the embodiment of the application;
[0019] Figure 3 This is a schematic diagram of the structure of the cleaning component in the embodiment of the application;
[0020] Figure 4 This is an example of the application. Figure 1 Enlarged view of structure A.
[0021] Explanation of reference numerals in the attached drawings: 1. Dryer body; 2. Feeding frame; 3. Protective frame; 4. Servo motor; 5. Rotating rod; 6. Mounting rod; 7. Cleaning plate; 8. Reciprocating screw; 9. Moving frame; 91. Limiting groove; 10. Scraper ring; 11. Support rod; 12. Protective net; 13. Inserting rod; 14. Inserting frame; 15. Limiting rod. Detailed Implementation
[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0023] This application discloses a spray calcination device that is easy to clean. (Refer to...) Figure 1-4 The easy-to-clean spray calcination device includes a dryer body 1, a feeding frame 2 fixedly installed at the lower end of the dryer body 1, a servo motor 4 installed inside the feeding frame 2, a protective frame 3 fixedly connected to the lower end of the servo motor 4, support rods fixedly installed on both sides of the protective frame 3, and the support rods fixedly connected to the side wall of the feeding frame 2, which serve to fix and support the servo motor 4, and a cleaning component is installed on the servo motor 4.
[0024] The cleaning assembly includes a rotating rod 5 fixedly installed at the output end of the servo motor 4, a mounting rod 6 fixedly connected to one side of the rotating rod 5, and a cleaning plate 7 fixedly connected to one side of the mounting rod 6. The cleaning plate 7 is inclined and fits against the lower side wall of the dryer body 1.
[0025] Servo motor 4 drives rotating rod 5 to rotate, rotating rod 5 drives mounting rod 6 to rotate, so that mounting rod 6 drives cleaning plate 7 to move continuously and slowly. When cleaning plate 7 moves, it continuously wipes away particles that fall and stay on the inclined side wall inside the dryer body 1 or adhere to particles.
[0026] The cleaning assembly also includes a reciprocating screw 8, with a rotating rod 5 fixedly connected to its lower end and a limiting block fixedly connected to its upper end. A movable frame 9 is threaded onto the reciprocating screw 8, and a scraper ring 10 is fixedly connected to the end of the movable frame 9 furthest from the reciprocating screw 8. The scraper ring 10 has blade-like edges. Figure 3 As shown, this facilitates the removal of adhering particles after contact with the side wall of the dryer body 1.
[0027] The rotating rod 5 also drives the reciprocating screw 8 to rotate, the reciprocating screw 8 drives the moving frame 9 to descend, and the moving frame 9 drives the scraper ring 10 to descend. When the scraper ring 10 descends, it cleans away the dried particles adhering to the upper side wall inside the dryer body 1, so as to facilitate the drying and feeding of the particles and keep the inside of the dryer body 1 clean.
[0028] By adopting the above technical solution, in order to ensure the stable lifting and lowering movement of the scraper ring 10, a limiting groove 91 is opened on the moving frame 9. The limiting groove 91 is slidably connected to the support rod 11. The lower end of the support rod 11 is fixedly connected to the protective net 12. The protective net 12 is fixedly installed inside the dryer body 1, so that the support rod 11 limits the moving frame 9 and ensures the stable lifting and lowering movement of the scraper ring 10.
[0029] By adopting the above technical solution, the dryer body 1 consists of a top frame and a bottom frame. The assembled dryer body 1 facilitates disassembly for internal cleaning. Several insert rods 13 are fixedly installed on the side of the bottom frame, with slots on one side of each insert rod 13. Corresponding insert frames 14 are fixedly installed on the side of the top frame. A limiting rod 15 is threadedly connected to one side of each insert frame 14, and the limiting rod 15 inserts into the slot of the insert rod 13. When disassembly is required, the limiting rod 15 can be rotated to separate it from the slot. Then, the top frame can be pulled to separate it from the bottom frame, thus separating the insert rods 13 from the insert frames 14.
[0030] The implementation principle of the spray calcination device for easy cleaning in this application embodiment is as follows: Hot air is introduced into the dryer body 1 from one side, and the upper atomizer is activated to spray out the liquid-material mixture to be dried. The hot air is used for continuous drying, so that the dried particles fall into the lower feeding frame 2 and are collected in the collection trough connected to the feeding frame 2. At the same time, the servo motor 4 is activated, which drives the rotating rod 5 to rotate. The rotating rod 5 drives the mounting rod 6 to rotate, which drives the cleaning plate 7 to move continuously and slowly. When the cleaning plate 7 moves, it continuously wipes away the particles that fall and stay on the inclined side wall inside the dryer body 1 or the particles that adhere to it. At the same time, the rotating rod 5 also drives the reciprocating screw 8 to rotate. The reciprocating screw 8 drives the moving frame 9 to descend. The moving frame 9 drives the scraper ring 10 to descend. When the scraper ring 10 descends, it cleans away the dried particles that adhere to the upper side wall inside the dryer body 1, so as to facilitate the drying and feeding of particles and keep the inside of the dryer body 1 clean.
[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0032] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A spray calcination device that is easy to clean, comprising a dryer body (1), characterized in that: A feeding frame (2) is fixedly installed at the lower end of the dryer body (1), a servo motor (4) is installed inside the feeding frame (2), and a cleaning component is installed on the servo motor (4); The cleaning assembly includes a rotating rod (5) fixedly installed at the output end of the servo motor (4), a mounting rod (6) fixedly connected to one side of the rotating rod (5), and a cleaning plate (7) fixedly connected to one side of the mounting rod (6). The cleaning plate (7) is inclined and fits against the lower side wall of the dryer body (1). The cleaning assembly also includes a reciprocating screw (8), with a rotating rod (5) fixedly connected to the lower end of the reciprocating screw (8) and a limiting block fixedly connected to the upper end of the reciprocating screw (8); a moving frame (9) is threadedly connected to the reciprocating screw (8), and a scraper ring (10) is fixedly connected to one end of the moving frame (9) away from the reciprocating screw (8). The scraper ring (10) has a blade-shaped side, and a limiting groove (91) is opened on the moving frame (9). The limiting groove (91) is slidably connected to a support rod (11), and a protective net (12) is fixedly connected to the lower end of the support rod (11). The protective net (12) is fixedly installed inside the dryer body (1).
2. The spray calcination device for easy cleaning according to claim 1, characterized in that: The dryer body (1) is composed of a top frame and a bottom frame, and a number of insert rods (13) are fixedly installed on the side of the bottom frame. A slot is opened on one side of the insert rod (13), and a corresponding insert frame (14) is fixedly installed on the side of the top frame.
3. The spray calcination device for easy cleaning according to claim 2, characterized in that: The insertion frame (14) is threadedly connected to a limiting rod (15) on one side, and the limiting rod (15) is inserted into the slot of the insertion rod (13).
4. The spray calcination device for easy cleaning according to claim 1, characterized in that: The lower end of the servo motor (4) is fixedly connected to the protective frame (3), and the protective frame (3) is fixedly installed on both sides, and the support rods are fixedly connected to the side wall of the feeding frame (2).