Sea cucumber collagen protein spray drying tower

Abstract

The utility model relates to spray drying equipment technical field, concretely is sea cucumber collagen protein spray drying tower, including spray drying tower main part, the top of spray drying tower main part is equipped with hot -blast distributor and delivery pump, and the delivery pump is connected with atomizing disc, and the top of atomizing disc is equipped with air supply disc, is provided with circulating mechanism in the spray drying tower main part, and the circulating mechanism includes cone bucket, spacer and fan blade. This sea cucumber collagen protein spray drying tower, through the cooperation of circulating mechanism and spiral channel, makes the big fog drop that is not completely dried after atomizing can enter spiral channel, prolongs the contact path with low temperature hot -blast, and realizes the circulating drying under the drive of fan blade, and the intercommunication structure of air supply disc and cavity can accurately deliver hot -blast to the vicinity of atomizing disc, and the cooperation circulating mechanism makes hot -blast participate in heat exchange with material circulation multiple times, reduces the heat loss of low temperature hot -blast, improves hot -blast utilization efficiency, further assists big fog drop to dry completely under low temperature.

Description

Technical Field

[0001] This utility model relates to the technical field of spray drying equipment, specifically a spray drying tower for sea cucumber collagen. Background Technology

[0002] Sea cucumber collagen is a natural active ingredient extracted from sea cucumbers. It possesses excellent biocompatibility and nutritional value, and is widely used in food, health products, and other fields. Spray drying technology has become a crucial process in sea cucumber collagen processing because it can rapidly convert liquid materials into powdered products and easily preserves the active ingredients. This technology uses a specific device to atomize the collagen stock solution, which then comes into contact with hot air to evaporate the moisture, ultimately yielding collagen powder that is easy to store, transport, and use. This provides effective support for the industrial application of sea cucumber collagen.

[0003] Utility model patent CN219579886U discloses a spray drying tower. The tower includes a tower body with a scraper assembly inside. The scraper assembly includes a ring, a gear ring, a mounting plate, and scraper blades. The ring is rotatably mounted on the inner wall of the tower body and has multiple sets of mounting holes. The mounting plate has two sets of fixing bolts on its top, which pass through the mounting holes. By tightening nuts on the fixing bolts, the mounting plate can be fixed to the bottom of the ring. In this spray drying tower, the scraper assembly, when activated by a motor, drives the gears to rotate, which in turn drives the gear ring, which in turn drives the ring, which in turn drives the scraper blades. The scraper blades can scrape off material adhering to the inner wall of the tower body. When the scraper blades need to be replaced, the cover is opened, the nuts are removed, and the scraper blades can be pulled out from inside the tower body for replacement.

[0004] In this spray drying tower, a low drying temperature needs to be controlled to prevent the destruction of nutrients when spray drying sea cucumber collagen. However, the comparative document only introduces hot air through the air inlet pipe for a single contact with the atomized material, without an extended contact path or a structure design for circulating drying. As a result, the larger droplets after atomization are difficult to fully exchange heat with the hot air in a low-temperature environment, and are discharged before being completely dried. In view of this, we propose a spray drying tower for sea cucumber collagen. Utility Model Content

[0005] The purpose of this invention is to provide a spray drying tower for sea cucumber collagen to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] Sea cucumber collagen spray drying tower includes a spray drying tower body. A hot air distributor and a delivery pump are installed at the top of the spray drying tower body. The output end of the delivery pump is connected to an atomizing disc, which is located inside the spray drying tower body. The atomizing disc is connected to the output end of the delivery pump. Several transparent cavities are opened on the atomizing disc. Several atomizing nozzles are installed at the bottom of the atomizing disc. An air supply disc is provided above the atomizing disc. The output end of the hot air distributor is connected to the air supply disc, and the air supply disc is connected to the cavities.

[0008] The spray drying tower body is equipped with a circulation mechanism, which includes a conical hopper fixed inside the spray drying tower body, a spacer fixed to the top of the conical hopper, and a fan blade located below the conical hopper. The bottom end of the conical hopper is connected to a sleeve, and the fan blade is fitted inside the sleeve and coaxial with the sleeve. The outer edge of the top of the conical hopper is fixedly connected to the inner wall of the spray drying tower body. An annular cavity for material circulation is formed between the spacer and the inner wall of the spray drying tower body. The gap between the conical hopper and the inner wall of the spray drying tower body is in communication with this cavity. When the material falls, it falls into the conical hopper and enters the sleeve, where it is blown by the fan blade. The material then sequentially enters the annular cavity between the spacer and the inner wall of the spray drying tower body through the gap between the conical hopper and the inner wall of the spray drying tower body, and then re-enters the spray drying tower body from the top of the spacer.

[0009] Preferably, a conical baffle is fixed on the top wall inside the spray drying tower body. The conical baffle is sleeved on the outside of the atomizing disc and is used to prevent material from falling onto the top of the atomizing disc.

[0010] In this setting, the conical baffle guides the material to avoid accumulating on the top of the atomizing disc, ensuring the normal atomization function of the atomizing disc and reducing material contamination of the atomizing disc.

[0011] Preferably, the atomizing disc has a hollow disc-shaped structure, and a connecting pipe is connected to the top of the atomizing disc, which is connected to the output end of the delivery pump.

[0012] In this setup, the hollow disc-shaped structure facilitates the distribution of the concentrate by the atomizing disc, and the connecting pipe ensures a stable connection between the delivery pump and the atomizing disc, guaranteeing smooth delivery of the concentrate.

[0013] Preferably, the air supply plate has a hollow annular disc structure, the connecting pipe passes through the middle of the air supply plate, the outer end of the air supply plate is provided with an air duct, the air duct is connected to the output end of the hot air distributor, the bottom end of the air supply plate is provided with several connecting channels, the number of connecting channels is equal to the number of cavities and the positions correspond one-to-one, the bottom end of the connecting channel is connected to the top end of the cavity and is fixedly connected to the atomizing plate.

[0014] In this setup, the hollow annular structure avoids the connecting pipe and distributes the hot air evenly. The duct stably delivers the hot air, and the connecting channel precisely guides the hot air into the cavity, ensuring that the hot air and the mist droplets come into uniform contact.

[0015] Preferably, the cone has a hollow cone-shaped structure with its cone tip located at the bottom, and the bottom of the cone does not contact the bottom wall inside the spray drying tower body;

[0016] In this design, the conical structure guides the material to flow towards the bottom of the cone, reducing material accumulation, and the design that the bottom does not contact the bottom wall provides a channel for material circulation.

[0017] Preferably, several partitions are fixed in a circular array on the outer circumferential surface of the cone bucket with the cone bucket axis as the center. The outer ends of the partitions abut against the inner wall of the spray drying tower body. A direct current channel is formed between two adjacent partitions and the inner wall of the spray drying tower body. An opening connected to the direct current channel is opened on the inner wall of the top of the cone bucket. The opening is located on the outside of the partition sleeve.

[0018] In this setup, a partition separates the outer space of the cone hopper, a direct current channel guides the orderly flow of materials, and an opening allows materials inside the cone hopper to enter the circulation path, thus improving the circulation structure.

[0019] Preferably, the spacer is a hollow cylindrical structure, the top of the spacer does not contact the top wall of the spray drying tower body, a number of spiral plates are fixed on the outer peripheral surface of the spacer, the outer ends of the spiral plates abut against the inner wall of the spray drying tower body, and a spiral channel is formed between two adjacent spiral plates and the inner wall of the spray drying tower body.

[0020] In this design, the hollow cylindrical structure facilitates airflow between the top and bottom of the spray drying tower, the top not contacting the top wall facilitates material return, and the spiral channel formed by the spiral plate extends the material flow path and improves the drying effect.

[0021] Preferably, a rotating motor is coaxially connected below the fan blades, and the rotating motor is installed at the bottom of the spray drying tower body;

[0022] In this setup, the rotating motor provides stable power to the fan blades, and the coaxial connection ensures stable airflow to the fan blades, driving the material to flow along the circulation path.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. This sea cucumber collagen spray drying tower, through the cooperation of the circulation mechanism and the spiral channel, allows larger droplets that are not completely dried after atomization to enter the spiral channel along the annular cavity, extending the contact path with the low-temperature hot air. At the same time, under the drive of the fan blades, circulation drying is achieved until the droplets are completely dried before participating in the subsequent process.

[0025] 2. This sea cucumber collagen spray drying tower, through the connection structure between the air supply plate and the cavity, can accurately deliver hot air to the vicinity of the atomizing plate. With the help of the circulation mechanism, the hot air circulates with the material and participates in heat exchange multiple times, reducing heat loss of low-temperature hot air, improving the utilization efficiency of hot air, and further assisting larger droplets to be completely dried at low temperatures. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the installation of the circulation mechanism in this utility model;

[0028] Figure 3 This is a schematic diagram showing the connection between the atomizing disc and the air supply disc in this utility model;

[0029] Figure 4 This is an exploded view of the circulation mechanism in this utility model;

[0030] Figure 5 This is a cross-sectional schematic diagram of the cone bucket during installation in this utility model;

[0031] Figure 6 This is a cross-sectional schematic diagram of the spacer sleeve during installation of this utility model;

[0032] The meanings of the labels in the diagram are as follows:

[0033] 100. Main body of spray drying tower; 110. Hot air distributor; 120. Delivery pump; 130. Conical baffle; 140. Atomizing disc; 141. Connecting pipe; 142. Cavity; 143. Atomizing nozzle; 150. Air supply disc; 151. Air duct; 152. Connecting channel;

[0034] 200. Circulation mechanism; 210. Conical hopper; 211. Sleeve; 212. Partition plate; 213. Direct current channel; 214. Through port; 220. Spacer sleeve; 221. Spiral plate; 222. Spiral channel; 230. Fan blade; 231. Rotating motor. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0036] Example 1

[0037] Please see Figures 1-3A sea cucumber collagen spray drying tower includes a spray drying tower body 100. A hot air distributor 110 and a delivery pump 120 are installed at the top of the spray drying tower body 100. The hot air distributor 110 can evenly distribute the input hot air, avoiding localized hot air concentration that could cause temperature fluctuations. The delivery pump 120 can stably deliver the sea cucumber collagen stock solution, preventing the stock solution from affecting subsequent atomization effects due to unstable delivery pressure. An atomizing disc 140 is connected to the output end of the delivery pump 120. The atomizing disc 140 is located inside the spray drying tower body 100. The atomizing disc 140 is connected to the delivery pump... The output end of the pump 120 is connected to the atomizing disk 140, and several atomizing nozzles 143 are installed at the bottom of the atomizing disk 140. The atomizing disk 140 can evenly distribute the raw liquid to each atomizing nozzle 143. The atomizing nozzles 143 can atomize the raw liquid into fine droplets, laying the foundation for subsequent drying with hot air. An air supply disk 150 is provided above the atomizing disk 140. The output end of the hot air distributor 110 is connected to the air supply disk 150. The air supply disk 150 can receive the hot air delivered by the hot air distributor 110 and guide the hot air to the area of ​​the atomizing disk 140 to ensure precise contact between the hot air and the atomized droplets.

[0038] like Figure 2 As shown in the present invention, a conical baffle 130 is fixed on the top wall inside the spray drying tower body 100. The conical baffle 130 is sleeved on the outside of the atomizing disc 140. The conical baffle 130 is used to prevent material from falling onto the top of the atomizing disc 140. The conical structure of the conical baffle 130 can guide the falling material to deflect towards the side wall of the spray drying tower body 100, so as to avoid the material accumulating on the top of the atomizing disc 140 and affecting its normal atomization function, while reducing the contamination of the atomizing disc 140 by the material.

[0039] like Figure 3 As shown, specifically, the atomizing disk 140 has a hollow disc-shaped structure. Several permeable cavities 142 are opened on the atomizing disk 140. The cavities 142 are not connected to the interior of the atomizing disk 140. The cavities 142 can serve as channels for hot air to flow from the top to the bottom of the atomizing disk 140, and make full contact with the droplets sprayed from the atomizing nozzle 143. A connecting pipe 141 is connected to the top of the atomizing disk 140. The connecting pipe 141 is connected to the output end of the delivery pump 120. The connecting pipe 141 can realize a stable connection between the delivery pump 120 and the atomizing disk 140, ensuring that the raw liquid is smoothly delivered to the interior of the atomizing disk 140.

[0040] like Figure 3As shown, the air supply plate 150 has a hollow annular disc structure. The connecting pipe 141 passes through the middle of the air supply plate 150. The hollow annular structure allows the air supply plate 150 to evenly distribute hot air while avoiding the connecting pipe 141. The outer end of the air supply plate 150 is provided with an air duct 151, which is connected to the output end of the hot air distributor 110. The air duct 151 can serve as a hot air delivery channel, stably delivering the hot air distributed by the hot air distributor 110 to the air supply plate 150. The bottom end of the air supply plate 150... A number of connecting channels 152 are provided, and the number of connecting channels 152 is equal to that of cavities 142 and their positions correspond one-to-one. The bottom end of the connecting channel 152 is connected to the top end of the cavity 142 and is fixedly connected to the atomizing disk 140, so that the air supply disk 150 and the cavity 142 are connected through the connecting channel 152. The connecting channel 152 can accurately introduce the hot air in the air supply disk 150 into the cavity 142 of the atomizing disk 140, ensuring that each cavity 142 can obtain a stable supply of hot air, thereby making the contact between the hot air and the mist droplets more uniform.

[0041] In this embodiment, when the sea cucumber collagen spray drying tower is in use, firstly, the delivery pump 120 delivers the sea cucumber collagen stock solution to the atomizing plate 140 through the connecting pipe 141. After being distributed by the atomizing plate 140, the stock solution is atomized into droplets from the atomizing nozzle 143. Then, the hot air distributor 110 delivers hot air to the air supply plate 150 through the air duct 151. The hot air in the air supply plate 150 enters the cavity 142 of the atomizing plate 140 through the connecting channel 152. Next, the hot air in the cavity 142 flows downward and contacts the droplets sprayed from the atomizing nozzle 143, performing preliminary drying on the droplets. Finally, the conical baffle 130 guides the material not attached to the atomizing plate 140 to move towards the side wall of the spray drying tower body 100, avoiding interference from the material with the atomization and drying process. The preliminarily dried droplets continue to flow downward into the lower part of the spray drying tower body 100.

[0042] Example 2

[0043] To prevent the nutritional value of sea cucumber collagen from being destroyed, the drying temperature must not be too high. Otherwise, the large droplets formed after atomization will be difficult to dry. Therefore, to ensure that the atomized sea cucumber collagen is thoroughly dried, such as... Figure 1 , Figure 2 and Figures 4-6As shown, a circulation mechanism 200 is provided in the spray drying tower body 100. The circulation mechanism 200 includes a cone 210 fixed inside the spray drying tower body 100, a partition 220 fixed to the top of the cone 210, and a fan blade 230 disposed below the cone 210. The structure formed by the cone 210 and the partition 220 separates the internal space of the spray drying tower body 100. This separation structure can guide the material to form a specific circulation path, avoiding disordered flow of the material and insufficient drying. The fan blade 230 is used to circulate the material inside the spray drying tower body 100, so that the sea cucumber collagen material can be fully dried. The fan blade 230 generates airflow power to drive the incompletely dried material to move along the circulation path, prolonging the contact time between the material and the hot air.

[0044] like Figure 2 and Figure 4 As shown, in this embodiment, the bottom end of the cone hopper 210 is connected to a sleeve 211. The sleeve 211 can serve as a channel for material to flow out from the bottom of the cone hopper 210, and at the same time provide installation and positioning space for the fan blade 230. The cone hopper 210 has a hollow cone structure with its cone tip located at the bottom. The cone structure facilitates the flow of material to the bottom of the cone hopper 210 under the action of gravity, reducing the accumulation of material on the inner wall of the cone hopper 210. The bottom end of the cone hopper 210 does not contact the bottom wall inside the spray drying tower body 100. A gap is formed between the cone hopper 210 and the inner wall of the spray drying tower body 100. This gap can serve as a channel for material circulation, allowing material to flow from the outside of the cone hopper 210 to the area of ​​the sleeve 220. An annular cavity for material circulation is formed between the spacer 220 and the inner wall of the spray drying tower body 100. The annular cavity can accommodate the circulating material and provide a stable flow space for the material. The gap between the cone hopper 210 and the inner wall of the spray drying tower body 100 is in communication with this cavity. The communication structure ensures that the material can smoothly enter the annular cavity from the gap outside the cone hopper 210 to form a complete circulation path.

[0045] like Figure 2 and Figure 4As shown, specifically, the fan blade 230 is sleeved inside the sleeve 211 and coaxial with the sleeve 211. The coaxial installation ensures stable airflow when the fan blade 230 rotates, avoiding turbulent airflow due to eccentricity that could affect material circulation. A rotating motor 231 is coaxially connected below the fan blade 230. The rotating motor 231 provides stable rotational power to the fan blade 230, ensuring that the fan blade 230 can continuously drive material circulation. The rotating motor 231 is installed at the bottom of the spray drying tower body 100. When the fan blade 230 rotates, it blows air downwards. The downward airflow can push the material inside the sleeve 211 downwards, thereby driving the material to flow along the circulation path. As the material falls, it enters the cone hopper 210 and then the sleeve 211. It is then blown by the fan blades 230, causing the material to sequentially enter the annular cavity between the partition sleeve 220 and the inner wall of the spray drying tower body 100 through the gap between the cone hopper 210 and the inner wall of the spray drying tower body 100. After that, the material enters the spray drying tower body 100 again from the top of the partition sleeve 220. This circulation path can extend the residence time of the material in the spray drying tower body 100, allowing larger droplets that are not completely dried to come into contact with hot air multiple times, and gradually complete the drying process.

[0046] like Figure 2 , Figure 4 and Figure 5 As shown, furthermore, the outer edge of the top of the cone 210 is fixedly connected to the inner wall of the spray drying tower body 100. This fixed connection ensures the stability of the cone 210 within the spray drying tower body 100 and prevents displacement of the cone 210 during material flow. Several baffles 212 are fixedly arranged in a circular array around the axis of the cone 210 on the outer circumferential surface of the cone 210. The circular array of baffles 212 evenly divides the gaps on the outer side of the cone 210, allowing the material to flow evenly in each area. The outer ends of the baffles 212 abut against the inner wall of the spray drying tower body 100, and adjacent baffles 212 are fixed to the inner wall of the spray drying tower body 100. A direct current channel 213 is formed between the inner walls of the cone 210. The direct current channel 213 can guide the material to flow in a specific direction and prevent the material from accumulating randomly on the outside of the cone 210. An opening 214 connected to the direct current channel 213 is provided on the top inner wall of the cone 210. The opening 214 allows the material inside the cone 210 that is not completely dried to enter the direct current channel 213 and participate in the external circulation. The opening 214 is located on the outside of the partition sleeve 220. The gap outside the cone 210 and the annular cavity outside the partition sleeve 220 are connected through the opening 214. The connecting structure ensures that the material in the direct current channel 213 can smoothly enter the annular cavity and improve the circulation path.

[0047] like Figure 2 , Figure 4 and Figure 6As shown, the partition sleeve 220 has a hollow cylindrical structure. The hollow cylindrical structure can form a channel inside the partition sleeve 220, which facilitates air circulation between the upper and lower parts of the spray drying tower body 100. The top of the partition sleeve 220 does not contact the top wall of the spray drying tower body 100. This non-contact design allows the material in the annular cavity to overflow from the top of the partition sleeve 220 and re-enter the upper part of the spray drying tower body 100 to participate in drying. Several spiral plates 221 are fixed on the outer circumferential surface of the partition sleeve 220. The spiral plates 221 can guide the material in the annular cavity to flow along the spiral trajectory, prolonging the residence time of the material in the annular cavity. The outer end of the spiral plate 221 abuts against the inner wall of the spray drying tower body 100. A spiral channel 222 is formed between two adjacent spiral plates 221 and the inner wall of the spray drying tower body 100. The spiral channel 222 can further extend the flow path of the material, allowing the material to come into more full contact with the hot air during the flow process, thereby improving the drying effect.

[0048] It is worth noting that the hot air distributor 110, the delivery pump 120 and the rotating motor 231 involved in this utility model are all existing conventional technologies, and will not be described in detail in this utility model.

[0049] In this embodiment of the sea cucumber collagen spray drying tower, the material initially dried in Example 1 falls into the conical hopper 210. Some of the material directly enters the sleeve 211, while the other part enters the direct current channel 213 through the outlet 214. Then, the rotating motor 231 drives the fan blades 230 to rotate, and the fan blades 230 blow air downwards, pushing the material in the sleeve 211 to flow along the gap between the conical hopper 210 and the inner wall of the spray drying tower body 100. The material in the direct current channel 213 also moves synchronously towards the annular cavity. Next, after the material enters the annular cavity formed by the partition sleeve 220 and the inner wall of the spray drying tower body 100, it flows along the spiral channel 222 formed by the spiral plate 221, continuously contacting and drying with hot air during the flow. Finally, the dried material overflows from the top of the partition sleeve 220 and re-enters the upper part of the spray drying tower body 100. If it is still not completely dried, the above cycle process is repeated until the material is completely dried and falls to the bottom of the spray drying tower body 100 for discharge.

[0050] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A spray drying tower for sea cucumber collagen, comprising a spray drying tower body (100), wherein a hot air distributor (110) and a delivery pump (120) are installed at the top of the spray drying tower body (100), and an atomizing disc (140) is connected to the output end of the delivery pump (120), the atomizing disc (140) being located inside the spray drying tower body (100), characterized in that: The atomizing disc (140) is connected to the output end of the delivery pump (120). The atomizing disc (140) has several transparent cavities (142). Several atomizing nozzles (143) are installed at the bottom of the atomizing disc (140). An air supply disc (150) is provided above the atomizing disc (140). The output end of the hot air distributor (110) is connected to the air supply disc (150). The air supply disc (150) is connected to the cavity (142). The spray drying tower body (100) is provided with a circulation mechanism (200). The circulation mechanism (200) includes a cone (210) fixed inside the spray drying tower body (100), a spacer (220) fixed to the top of the cone (210), and a fan blade (230) disposed below the cone (210). The bottom end of the cone (210) is connected to a sleeve (211). The fan blade (230) is fitted inside the sleeve (211) and is coaxial with the sleeve (211). The outer edge of the top end of the cone (210) is fixedly connected to the inner wall of the spray drying tower body (100). The spacer (220) is connected to the spray drying tower body (100). An annular cavity for material circulation is formed between the inner walls of the drying tower body (100). The gap between the cone hopper (210) and the inner wall of the spray drying tower body (100) is connected to this cavity. When the material falls, it falls into the cone hopper (210) and enters the sleeve (211). It is then blown by the fan blade (230), so that the material enters the annular cavity between the partition sleeve (220) and the inner wall of the spray drying tower body (100) through the gap between the cone hopper (210) and the inner wall of the spray drying tower body (100) in sequence, and then enters the spray drying tower body (100) again from the top of the partition sleeve (220).

2. The sea cucumber collagen spray drying tower according to claim 1, characterized in that: A conical baffle (130) is fixed on the top wall inside the spray drying tower body (100). The conical baffle (130) is sleeved on the outside of the atomizing disc (140) and is used to prevent material from falling onto the top of the atomizing disc (140).

3. The sea cucumber collagen spray drying tower according to claim 1, characterized in that: The atomizing disc (140) has a hollow disc-shaped structure. A connecting pipe (141) is connected to the top of the atomizing disc (140), and the connecting pipe (141) is connected to the output end of the delivery pump (120).

4. The sea cucumber collagen spray drying tower according to claim 3, characterized in that: The air supply plate (150) has a hollow annular disc structure. The connecting pipe (141) passes through the middle of the air supply plate (150). The outer end of the air supply plate (150) is provided with an air duct (151). The air duct (151) is connected to the output end of the hot air distributor (110). The bottom end of the air supply plate (150) is provided with several connecting channels (152). The number of connecting channels (152) is equal to that of the cavity (142) and their positions correspond one-to-one. The bottom end of the connecting channel (152) is connected to the top end of the cavity (142) and is fixedly connected to the atomizing plate (140).

5. The sea cucumber collagen spray drying tower according to claim 1, characterized in that: The cone (210) has a hollow cone-shaped structure with its cone tip located at the bottom. The bottom end of the cone (210) does not contact the bottom wall inside the spray drying tower body (100).

6. The sea cucumber collagen spray drying tower according to claim 1, characterized in that: Several partitions (212) are fixed in a ring array on the outer circumferential surface of the cone (210) with the cone (210) axis as the center. The outer ends of the partitions (212) abut against the inner wall of the spray drying tower body (100). A direct current channel (213) is formed between two adjacent partitions (212) and the inner wall of the spray drying tower body (100). An opening (214) connected to the direct current channel (213) is opened on the top inner wall of the cone (210). The opening (214) is located on the outside of the partition sleeve (220).

7. The sea cucumber collagen spray drying tower according to claim 1, characterized in that: The spacer (220) has a hollow cylindrical structure. The top of the spacer (220) does not contact the top wall of the spray drying tower body (100). Several spiral plates (221) are fixed on the outer peripheral surface of the spacer (220). The outer ends of the spiral plates (221) abut against the inner wall of the spray drying tower body (100). A spiral channel (222) is formed between two adjacent spiral plates (221) and the inner wall of the spray drying tower body (100).

8. The sea cucumber collagen spray drying tower according to claim 1, characterized in that: A rotating motor (231) is coaxially connected below the fan blade (230), and the rotating motor (231) is installed at the bottom of the spray drying tower body (100).

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