Anti-stockpiling spray dryer

Abstract

The utility model relates to the technical field of spray drying equipment, in particular to an anti-stockpiling spray dryer which comprises a spray dryer body, a discharging assembly is arranged on the lower portion of the spray dryer body, the discharging assembly comprises a receiving hopper connected with the spray dryer body, a discharging channel is arranged on the lower portion of the receiving hopper, and the discharging channel is communicated with the discharging assembly. The anti-blocking device used for assisting in discharging is arranged in the discharging channel, materials in the discharging channel can be scattered through the anti-blocking device, the phenomenon that the materials are excessively stacked is avoided, and the operation stability and the production efficiency of the device are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of spray drying equipment, specifically to a spray dryer that can avoid material accumulation at the bottom. Background Technology

[0002] Spray dryers, as highly efficient drying equipment, are widely used in various industries such as chemical, pharmaceutical, and food. Their working principle mainly involves converting liquid materials into fine mist particles, which then rapidly exchange heat with hot air, thus achieving rapid drying. However, in practical applications, traditional spray dryers often suffer from material accumulation at the discharge point. This not only affects drying efficiency but may also lead to prolonged material retention and deterioration, ultimately impacting product quality.

[0003] Specifically, in traditional spray dryers, the material is sprayed into a mist and enters the drying chamber, where it comes into contact with hot air and is dried. However, due to improper design of the discharge channel or improper operation, the dried material often accumulates at the discharge point. This accumulation not only hinders the smooth flow of the material, leading to a decrease in drying efficiency, but may also cause deterioration due to the material remaining in a high-temperature environment for an extended period, and may even pose safety hazards.

[0004] In addition, material accumulation can also have an adverse effect on the normal operation of the spray dryer. Long-term accumulation can also cause the material to caking, completely blocking the discharge channel, requiring shutdown for maintenance, and seriously affecting the operating efficiency of the equipment. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a spray dryer that can avoid material piling up.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a spray dryer for preventing material buildup, comprising a spray dryer body, a discharge assembly at the lower part of the spray dryer body, the discharge assembly including a receiving hopper connected to the spray dryer body, a discharge channel at the lower part of the receiving hopper, an anti-clogging device for assisting material discharge in the discharge channel, and a negative pressure suction pipe at the lower part of the discharge channel.

[0007] As a further improvement to the above technical solution:

[0008] The anti-clogging device includes a positioning ring plate disposed on the upper part of the discharge channel, a drive shaft disposed in the middle of the positioning ring plate, and the lower end of the drive shaft extending to the outside of the receiving hopper and connected to the drive source.

[0009] A crossbar is provided between the positioning ring plate and the drive shaft, and a sealed bearing for connecting the crossbar is provided in the middle of the drive shaft.

[0010] The lower outer wall of the drive shaft is provided with a plurality of dispersing blades, which are distributed along the height direction of the drive shaft.

[0011] The upper part of the drive shaft is provided with a cleaning scraper that fits against the side wall of the receiving hopper, and the cleaning scraper is provided with a drive arm connected to the drive shaft.

[0012] The lower part of the drive arm is connected to the transmission shaft, and the upper part is provided with a slider that is slidably connected to the receiving hopper. The side wall of the receiving hopper is provided with an annular slide rail that works in conjunction with the slider.

[0013] The upper part of the annular slide rail is provided with a positioning plate that is connected to the side wall of the receiving hopper, and the annular slide rail is located on the lower surface of the positioning plate.

[0014] The beneficial effects of this utility model embodiment are as follows: 1. The anti-stacking spray dryer includes a spray dryer body, and a discharge component is provided at the lower part of the spray dryer body. The discharge component includes a receiving hopper connected to the spray dryer body. A discharge channel is provided at the lower part of the receiving hopper. An anti-clogging device for assisting material discharge is provided in the discharge channel. The anti-clogging device can disperse the material in the discharge channel, avoid excessive accumulation of material, and improve the operating stability and production efficiency of the equipment.

[0015] 2. The cleaning scraper design can clean the receiving hopper and prevent material residue from remaining on the side wall of the receiving hopper. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the anti-clogging device in this utility model;

[0019] Figure 4 This is a top view of the positioning ring plate in this utility model.

[0020] In the diagram: 1. Spray dryer body; 2. hopper; 3. discharge channel; 4. negative pressure suction pipe; 5. positioning ring plate; 6. drive shaft; 7. drive source; 8. crossbar; 9. sealed bearing; 10. dispersing blade; 11. cleaning scraper; 12. drive arm; 13. slider; 14. annular slide rail; 15. positioning plate. Detailed Implementation

[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] like Figure 1-4 As shown, the anti-stacking spray dryer of this embodiment includes a spray dryer body 1. The lower part of the spray dryer body 1 is provided with a discharge assembly. The discharge assembly includes a receiving hopper 2 connected to the spray dryer body 1. The receiving hopper 2 is frustoconical and its diameter gradually decreases from top to bottom. The lower part of the receiving hopper 2 is provided with a discharge channel 3. An anti-clogging device for assisting material discharge is installed in the discharge channel 3. A negative pressure suction pipe 4 is installed on one side of the lower part of the discharge channel 3. When the material slides from the spray dryer body 1 into the receiving hopper 2, due to the decrease in diameter, the material will accumulate in the discharge channel. In severe cases, it may even cause the material to clump. Through the design of the anti-clogging device, the material is dispersed in the discharge channel 3 to prevent accumulation, ensuring that the material can be discharged in time without accumulation or blockage.

[0023] The anti-clogging device includes a positioning ring plate 5 installed on the upper part of the discharge channel 3. A drive shaft 6 is provided in the middle of the positioning ring plate 5. The lower end of the drive shaft 6 extends to the outside of the receiving hopper 2 and is connected to the drive source 7. The drive source 7 adopts a motor and a reducer, and drives the drive shaft 6 to rotate through the drive source 7.

[0024] A crossbar 8 is provided between the positioning ring plate 5 and the drive shaft 6. A sealed bearing 9 for connecting the crossbar 8 is provided in the middle of the drive shaft 6. One end of the crossbar 8 is connected to the positioning ring plate 5, and the other end is connected to the sealed bearing 9. There are multiple crossbars 8, and a material feeding gap is reserved between two adjacent crossbars 8.

[0025] Dispersing blades 10 are provided on the outer side wall of the lower part of the drive shaft 6. There are multiple dispersing blades 10 and they are distributed along the height direction of the drive shaft 6. The dispersing blades 10 disperse the material in the lower part of the feeding channel to facilitate the falling of the material.

[0026] The upper part of the drive shaft 6 is provided with a cleaning scraper 11 that fits against the side wall of the receiving hopper 2. One side of the cleaning scraper 11 fits against the inner side wall of the receiving hopper 2. The cleaning scraper 11 is provided with a drive arm 12 connected to the drive shaft 6. The cleaning scraper 11 rotates with the drive shaft 6 to clean the side wall of the receiving hopper 2 and prevent the material from sticking. There are multiple cleaning scrapers 11 and they are evenly distributed along the circumference of the drive shaft 6.

[0027] The lower part of the drive arm 12 is connected to the drive shaft 6, and the upper part is provided with a slider 13 that is slidably connected to the receiving hopper 2. The side wall of the receiving hopper 2 is provided with an annular slide rail 14 that works with the slider 13. The cooperation between the annular slide rail 14 and the slider 13 can guide the cleaning scraper 11 during rotation, and at the same time, it can fix the upper end of the cleaning hanging plate 11 to ensure its rotational stability.

[0028] The upper part of the annular slide rail 14 is provided with a positioning plate 15 connected to the side wall of the receiving hopper 2. The annular slide rail 14 is located on the lower surface of the positioning plate 15. The outer side of the positioning plate 15 is connected to the inner side wall of the receiving hopper 2. The inner side is provided with a downwardly inclined extension plate. The extension plate can be made of silicone or other flexible materials to seal and protect the annular slide rail 14 and the slider 13, so as to prevent dust from entering and increasing the friction between the slider 13 and the annular guide rail 14.

[0029] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0032] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A spray dryer for preventing material stacking, comprising a spray dryer body (1), wherein a discharge assembly is provided at the lower part of the spray dryer body (1), characterized in that: The discharge assembly includes a receiving hopper (2) connected to the spray dryer body (1), and a discharge channel (3) is provided at the lower part of the receiving hopper (2). An anti-clogging device for assisting material discharge is provided in the discharge channel (3), and a negative pressure suction pipe (4) is provided at the lower part of the discharge channel (3).

2. The anti-piling spray dryer according to claim 1, characterized in that: The anti-clogging device includes a positioning ring plate (5) set on the upper part of the discharge channel (3), and a drive shaft (6) is set in the middle of the positioning ring plate (5). The lower end of the drive shaft (6) extends to the outside of the receiving hopper (2) and is connected to the drive source (7).

3. The anti-piling spray dryer according to claim 2, characterized in that: A crossbar (8) is provided between the positioning ring plate (5) and the transmission shaft (6), and a sealed bearing (9) for connecting the crossbar (8) is provided in the middle of the transmission shaft (6).

4. The anti-piling spray dryer according to claim 2, characterized in that: The lower outer wall of the drive shaft (6) is provided with a dispersing blade (10), and the number of the dispersing blades (10) is multiple and distributed along the height direction of the drive shaft (6).

5. The anti-piling spray dryer according to claim 2, characterized in that: The upper part of the drive shaft (6) is provided with a cleaning scraper (11) that fits against the side wall of the receiving hopper (2), and the cleaning scraper (11) is provided with a drive arm (12) connected to the drive shaft (6).

6. The anti-piling spray dryer according to claim 5, characterized in that: The lower part of the drive arm (12) is connected to the transmission shaft (6), and the upper part is provided with a slider (13) that is slidably connected to the receiving hopper (2). The side wall of the receiving hopper (2) is provided with an annular slide rail (14) that cooperates with the slider (13).

7. The anti-piling spray dryer according to claim 6, characterized in that: The upper part of the annular slide rail (14) is provided with a positioning plate (15) connected to the side wall of the receiving hopper (2), and the annular slide rail (14) is located on the lower surface of the positioning plate (15).

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