A flow mixing device for spirulina cultivation

By designing an adjustable shaft height stirring mechanism and stirring plate, the problems of stirring dead corners and algae adhesion in the spirulina cultivation system were solved, achieving complex water flow patterns and simplified cleaning.

CN224325326UActive Publication Date: 2026-06-05YANCHI YI JIAN BIOLOGICAL PROJECT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANCHI YI JIAN BIOLOGICAL PROJECT CO LTD
Filing Date
2025-07-03
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing spirulina cultivation systems, the paddle wheel agitates the water at a fixed depth, making it difficult to generate complex water flow patterns. This results in unsatisfactory mixing effects, and algae easily adhere to the paddle wheel, making cleaning difficult.

Method used

Design a flow mixing device for spirulina cultivation, which adopts an adjustable shaft height stirring mechanism, combined with stirring plate and tapping rod. The stirring depth and frequency are adjusted by electric push rod and drive motor. Rubber membrane is used to prevent algae from adhering, and rebound spring and tapping rod are used to detach the adhering algae.

Benefits of technology

It enables the generation of complex water flow patterns, improves the mixing effect of spirulina, reduces algae adhesion to the stirring plate, and simplifies the cleaning process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224325326U_ABST
    Figure CN224325326U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of spirulina cultivation, specifically a flow mixing device for spirulina cultivation, including two vertical boards one side all are set up with the sliding slot, the pivot is located between two vertical boards, two adjusting mechanisms are respectively slidably connected in two sliding slot interiors, the adjusting mechanism includes the sliding block, and the sliding block one side is set up with the sleeve hole, the pivot outside wall rotation sleeve is connected in the sleeve hole interior. In the utility model, through starting drive motor can drive the pivot rotation, make the pivot drive multiple agitator plate rotation agitates the water flow, and start electric push rod drives the pivot reciprocating movement along the sliding slot, make each time agitator plate agitates the water flow depth is not one, thereby produces more complex water flow mode, improves the mixing effect of culture solution, and the agitator plate can produce the collision when passing through the knocking rod and relies on the spring to produce the shake, and the adhered algal body is shaken together with the water flow and separates from the agitator plate, thereby reduces the algal body that agitator plate sticks.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of spirulina cultivation technology, specifically a flow mixing device for spirulina cultivation. Background Technology

[0002] Spirulina is typically cultivated using a horizontal pond system, a widely adopted method. This system features a brick main structure with a concrete or polyethylene lining. The pond depth is generally 40 cm, and the culture medium depth is typically 20-25 cm. The area ranges from hundreds to thousands of square meters. The ponds are usually divided into racetrack-like sections, and paddle wheels are used to agitate the water, enhancing the flow and mixing of the culture medium and ensuring the algae are evenly distributed within the water. However, conventional paddle wheels, due to their mostly fixed installation, result in uneven agitation of the water flow. The depth is difficult to change, and stirring at a fixed depth may not generate sufficiently complex water flow patterns. Furthermore, the speed of the paddle wheel should not be too fast when stirring the water, as this can easily lead to unsatisfactory mixing results and make it difficult to distribute spirulina evenly throughout the water. In addition, when traditional paddle wheels stir the water, some algae and water may remain on the paddle. When the paddle wheel stops stirring, algae and water may adhere to the paddle that has detached from the water. After the water dries, the algae adheres even more tightly to the paddle, making it difficult to clean. This adhesion phenomenon may also have an adverse effect on the stirring effect, which is quite inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a flow mixing device for spirulina cultivation to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A flow mixing device for spirulina cultivation, comprising:

[0006] The system comprises two upright plates, a rotating shaft, two adjusting mechanisms for adjusting the height of the rotating shaft, and multiple agitating mechanisms for stirring the water flow. Each of the two upright plates has a groove on one side. The rotating shaft is located between the two upright plates. The two adjusting mechanisms are slidably engaged within the two grooves. Each adjusting mechanism includes a slider with a sleeve hole on one side. The outer wall of the rotating shaft is rotatably fitted into the sleeve hole. An electric push rod is provided on one side of the slider and is fixedly connected to an adjacent upright plate. A collar is fixedly connected to the movable end of the electric push rod, and the collar is rotatably fitted into the outer wall of the rotating shaft. Multiple agitating mechanisms are fixedly fitted into the rotating shaft, and each agitating mechanism is located between two upright plates.

[0007] Furthermore, a slide rail is fixedly connected to one side of a vertical plate via a connecting plate, and a motor box is slidably engaged inside the slide rail. The motor box contains a drive motor and a reducer, and the motor shaft of the drive motor is fixedly connected to the input end of the reducer, while the output end of the reducer is fixedly connected to one end of a rotating shaft.

[0008] Furthermore, the stirring mechanism includes:

[0009] The device comprises a sleeve, multiple support plates, and multiple agitator plates that come into contact with the water flow. The inner wall of the sleeve is fixedly connected to the outer wall of the rotating shaft. The multiple support plates are arranged around the circumference of the sleeve, and one side of each support plate is fixedly connected to the outer wall of the sleeve. The multiple agitator plates correspond one-to-one with the multiple support plates. Each agitator plate has a cavity on one side, and each support plate is located inside the cavity of the corresponding agitator plate. Multiple rebound springs are fixedly connected to the opposite sides of each support plate, and one end of each rebound spring is fixedly connected to the inner wall of the adjacent cavity.

[0010] Furthermore, a rubber membrane is fixedly fitted onto the outer wall of each of the two slides, and each rubber membrane is fixedly fitted into the cavity opening of the adjacent agitator plate. A U-shaped striking rod is fixedly connected between the two slides.

[0011] Furthermore, a guide frame is fixedly fitted onto the outer wall of each agitator plate.

[0012] Furthermore, all four outer walls of any guide frame are sloped.

[0013] Furthermore, each inner wall of any ring and each hole is fixedly fitted with a ball bearing, and the inner ring of each ball bearing is fixedly fitted with the outer wall of the shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The drive motor can be started to rotate the shaft, which in turn drives multiple agitator plates through the sleeve and support plate to rotate. The agitator plates stir the water flow. The shaft can be moved back and forth along the chute by the electric push rod, thereby adjusting the depth of the agitator plates into the water flow. This results in different depths of water flow stirred by each agitator plate, creating a more complex water flow pattern, reducing dead zones, and improving the mixing effect of the culture medium. When the agitator plates pass by the tapping rod, they collide and shake due to the rebound spring, shaking the adhering algae along with the water flow off the agitator plates, thus reducing the amount of algae adhering to the agitator plates. Attached Figure Description

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

[0017] Figure 2 This is the top view of the shape used in this utility model;

[0018] Figure 3 This is an exploded view of the adjusting mechanism structure in this utility model;

[0019] Figure 4 This is an exploded view of the stirring mechanism in this utility model.

[0020] In the diagram: 100, vertical plate; 200, rotating shaft; 300, adjusting mechanism; 301, ball bearing; 310, slider; 320, slide rail; 330, motor box; 340, electric push rod; 341, collar; 400, stirring mechanism; 410, sleeve; 420, support plate; 421, rebound spring; 422, rubber diaphragm; 430, stirring plate; 440, guide frame; 450, striking rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0022] Please see Figure 1-4 In this embodiment of the invention, a flow mixing device for spirulina cultivation includes:

[0023] The system comprises two upright plates 100, a rotating shaft 200, two adjusting mechanisms 300 for adjusting the height of the rotating shaft 200, and multiple agitating mechanisms 400 for stirring water flow. Each of the two upright plates 100 has a groove on one side. The rotating shaft 200 is located between the two upright plates 100. The two adjusting mechanisms 300 are slidably engaged within the two grooves. Each adjusting mechanism 300 includes a slider 310, with a sleeve hole on one side. The outer wall of the rotating shaft 200 is rotatably fitted into the sleeve hole. An electric push rod 340 is provided on one side of the slider 310 and is fixedly connected to the adjacent upright plate 100. A collar 341 is fixedly connected to the movable end of the electric push rod 340, and the collar 341 is rotatably fitted into the outer wall of the rotating shaft 200. Multiple agitating mechanisms 400 are fixedly fitted into the rotating shaft 200, and each agitating mechanism 400 is located between the two upright plates 100.

[0024] Specifically, by fixing two upright plates 100 to the bank via connectors, and then rotating the shaft 200 to drive multiple agitators 400 to agitate the water flow, the nutrients in the culture medium are mixed evenly. When the agitator 400 agitates the water flow, the shaft 200 can be driven to move back and forth along the chute by two sliders 310 by activating two electric push rods 340. The depth of agitation by the agitator 400 can be adjusted by adjusting the height of the shaft 200. By continuously changing the agitation depth, the depth of agitation is made different each time, resulting in different fluctuations in the water flow during each agitation, creating a more complex water flow pattern, reducing dead zones in the agitation, and thus improving the mixing effect of the culture medium.

[0025] Example 1

[0026] like Figure 1 and Figure 3 As shown, in this embodiment, a slide rail 320 is fixedly connected to one side of a vertical plate 100 via a connecting plate, and a motor box 330 is slidably engaged inside the slide rail 320. A drive motor and a reducer are provided inside the motor box 330, and the motor shaft of the drive motor is fixedly connected to the input end of the reducer, and the output end of the reducer is fixedly connected to one end of the rotating shaft 200.

[0027] In this embodiment, the drive motor can be started to drive the rotating shaft 200 to rotate using the reducer, and when the electric push rod 340 drives the rotating shaft 200 to move, the rotating shaft 200 can synchronously drive the motor box 330 to slide inside the slide rail 320.

[0028] like Figure 1 and Figure 4 As shown, in this embodiment, the stirring mechanism 400 includes:

[0029] The system comprises a sleeve 410, multiple support plates 420, and multiple agitator plates 430 that come into contact with the water flow. The inner wall of the sleeve 410 is fixedly sleeved to the outer wall of the rotating shaft 200. The multiple support plates 420 are arranged circumferentially around the sleeve 410, and one side of each support plate 420 is fixedly connected to the outer wall of the sleeve 410. The multiple agitator plates 430 correspond one-to-one with the multiple support plates 420. Each agitator plate 430 has a cavity on one side, and each support plate 420 is located inside the cavity of the corresponding agitator plate 430. Multiple rebound springs 421 are fixedly connected to both sides. One end of any rebound spring 421 is fixedly connected to the inner wall of the adjacent cavity. A rubber membrane 422 is fixedly sleeved on the outer wall of any support plate 420. Any rubber membrane 422 is fixedly sleeved inside the cavity opening of the adjacent stirring plate 430. A U-shaped striking rod 450 is fixedly connected between the two sliders 310. A guide frame 440 is fixedly sleeved on the outer wall of any stirring plate 430. All four outer walls of any guide frame 440 are inclined surfaces.

[0030] In practice, the rotating shaft 200 drives the sleeves 410 of multiple agitation mechanisms 400 to rotate, causing the sleeves 410 to drive the support plates 420 and adjacent agitation plates 430 to rotate, thereby agitating the water flow with the agitation plates 430. The height of the rotating shaft 200 is adjusted by the adjusting mechanism 300, thereby adjusting the depth of the agitation plates 430 into the water flow. When the agitation plates 430 are rotated and lifted off the water surface by the sleeves 410, algae and water may be attached to the agitation plates 430. Then, the agitation plates 430 collide with the striking rod 450, causing the agitation plates 430 to shake due to the rebound springs 421 between their cavities and the adjacent support plates 420. This causes the algae adhering to the agitator plate 430 to fall off along with the water flow, thereby reducing the amount of algae adhering to the agitator plate 430. The inclined surface of the guide frame 440 facilitates the removal of dripping algae and water from the agitator plate 430. The rubber membrane 422 is made of elastic rubber material, which can be stretched and deformed when the agitator plate 430 is shaken. The rubber membrane 422 prevents water and algae from entering the cavity of the agitator plate 430. The height of the support plate 420 is smaller than the height of the cavity, so that the agitator plate 430 can be squeezed towards the sleeve 410 by the striking rod 450 when it passes the striking rod 450, thus facilitating the passage of the agitator plate 430 by the striking rod 450.

[0031] Example 2

[0032] Based on Embodiment 1, the ball bearing 301 is provided to facilitate the rotation of the shaft 200.

[0033] like Figure 3 As shown, in this embodiment, a ball bearing 301 is fixedly sleeved on the inner side wall of any sleeve ring 341 and inside any sleeve hole, and the inner ring of any ball bearing 301 is fixedly sleeved on the outer side wall of the rotating shaft 200.

[0034] In practice, ball bearings 301 are installed inside the sleeve hole of the slider 310 and in the collar 341 to make the shaft 200 rotate more smoothly.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flow mixing device for spirulina cultivation, characterized in that, include: Both upright plates (100) have a sliding groove on one side; A pivot (200) is located between the two upright plates (100); Two adjustment mechanisms (300) are respectively slidably engaged in the two grooves. Each adjustment mechanism (300) includes a slider (310) and a sleeve hole is provided on one side of the slider (310). The outer wall of the rotating shaft (200) is rotatably sleeved in the sleeve hole. An electric push rod (340) is provided on one side of the slider (310) and is fixedly connected to the adjacent upright plate (100). A collar (341) is fixedly connected to the movable end of the electric push rod (340), and the inside of the collar (341) is rotatably sleeved with the outer wall of the rotating shaft (200). Multiple agitation mechanisms (400) are fixedly connected to the rotating shaft (200), and each agitation mechanism (400) is located between two vertical plates (100).

2. The spirulina cultivation flow mixing device according to claim 1, characterized in that, A ball bearing (301) is fixedly sleeved on the inner wall of any ring (341) and inside any hole, and the inner ring of any ball bearing (301) is fixedly sleeved on the outer wall of the shaft (200).

3. The spirulina cultivation flow mixing device according to claim 1, characterized in that, A slide rail (320) is fixedly connected to one side of a vertical plate (100) via a connecting plate, and a motor box (330) is slidably engaged inside the slide rail (320). The motor box (330) is equipped with a drive motor and a reducer, and the motor shaft of the drive motor is fixedly connected to the input end of the reducer. The output end of the reducer is fixedly connected to one end of a rotating shaft (200).

4. The flow mixing device for spirulina cultivation according to any one of claims 1-3, characterized in that, The agitation mechanism (400) includes: The inner wall of the sleeve (410) is fixedly connected to the outer wall of the rotating shaft (200); Multiple support plates (420) are arranged around the circumference of the sleeve (410), and one side of any support plate (420) is fixedly connected to the outer wall of the sleeve (410); Multiple stirring plates (430) correspond one-to-one with multiple support plates (420). Each stirring plate (430) has a cavity on one side. Each support plate (420) is located inside the cavity of the corresponding stirring plate (430). Multiple rebound springs (421) are fixedly connected to the opposite sides of each support plate (420). One end of each rebound spring (421) is fixedly connected to the inner wall of the adjacent cavity.

5. The spirulina cultivation flow mixing device according to claim 4, characterized in that, A rubber membrane (422) is fixedly fitted onto the outer wall of each of the plates (420), and each rubber membrane (422) is fixedly fitted into the cavity opening of the adjacent stirring plate (430). A U-shaped striking rod (450) is fixedly connected between the two sliders (310).

6. The spirulina cultivation flow mixing device according to claim 5, characterized in that, A guide frame (440) is fixedly sleeved on the outer wall of any agitator (430).

7. The spirulina cultivation flow mixing device according to claim 6, characterized in that, All four outer walls of any guide frame (440) are inclined surfaces.