Fresh spirulina cultivation device

Abstract

The utility model provides a fresh spirulina cultivation device. The fresh spirulina cultivation device comprises a shed frame, a supporting frame, a cultivation tank and a fertilizer adding assembly. The shed frame is mounted above the supporting frame; a film is arranged outside the shed frame; film reelers are arranged on the two sides of the shed frame and connected with the film. The breeding tank is arranged in the shed frame; the bottom of the culture tank is connected with an algae collecting pipe; a vibration filter is arranged at the outlet of the algae collecting pipe; the fertilizer adding assembly is communicated with the breeding tank. The device is suitable for urban community roofs, all-weather spirulina cultivation can be achieved on the urban community roofs, and therefore fresh, safe and sanitary fresh spirulina can be provided for urban residents, and the difficulty of obtaining the fresh spirulina is reduced.

Description

Technical Field

[0001] This application relates to the field of spirulina cultivation technology, and more specifically, to a device for cultivating fresh spirulina. Background Technology

[0002] Fresh spirulina refers to a green, semi-solid substance obtained by filtering and rinsing a culture solution that has been cultivated to a certain concentration. Commonly known as "spirulina mud," its texture is similar to soft tofu. With the addition of purified water, this spirulina mud transforms into a dark green nutrient emulsion.

[0003] Fresh spirulina is rich in various nutrients, with the content of its main nutrients comparable to that of natural dairy products. Its high-quality protein content is six times that of breast milk, twice that of cow's milk, and even exceeds that of goat's milk, known as the "king of milk," by 14%. Furthermore, its content of biocompatible iron is significantly higher than that of natural milk, reaching 24 times that of breast milk, 128 times that of cow's milk, and 76 times that of goat's milk. Fresh spirulina is not only rich in protein and low in fat, but also contains abundant minerals, trace elements, and various vitamins, making it an ideal food that meets the health needs of modern people.

[0004] In terms of protein quality, the essential amino acid content provided by fresh spirulina is almost entirely consistent with the human nutritional composition pattern recommended by the Food and Agriculture Organization of the United Nations (FAO) and the World Health Organization (WHO). Its digestibility coefficient (DC) is as high as 95% or more. Fresh spirulina also performs exceptionally well in terms of vitamin content, especially carotenoids (precursors to vitamin A with strong antioxidant properties), which are hundreds of times higher than those in natural milk. The content of vitamin B12 and folic acid is also dozens of times higher than that in natural milk.

[0005] In addition, fresh spirulina is rich in unsaturated fatty acids, including gamma-linolenic acid, which is more than 20 times higher than that in natural milk. It has significant biological activity, can effectively regulate blood lipid and cholesterol metabolism, and prevent prostate diseases.

[0006] Currently, fresh spirulina is gaining acceptance and wider adoption. However, as a live food, fresh spirulina is susceptible to microbial contamination, loss of active ingredients, and oxidation of chemical components at room temperature, resulting in a shelf life of only a few hours. Therefore, obtaining fresh spirulina is relatively difficult. Consequently, fresh spirulina currently relies mainly on frozen spirulina sludge transported via cold chain, but the freezing process leads to the loss of active ingredients and makes it impossible to achieve "freshly harvested and consumed immediately."

[0007] In view of the above, this application is hereby submitted. Utility Model Content

[0008] The purpose of this invention is to provide a fresh spirulina cultivation device. This device employs a shed-style structure to provide comprehensive protection for the cultivation tanks, effectively achieving rain and wind protection. By elevating the cultivation tanks with support frames, it not only effectively prevents damage from pests such as rodents and ants but also improves the cleanliness of the cultivation environment. This device is suitable for rooftop cultivation in urban communities, enabling all-weather spirulina cultivation and providing urban residents with fresh, safe, and hygienic spirulina, thus reducing the difficulty of obtaining fresh spirulina.

[0009] To achieve the above-mentioned objectives of this utility model, the following technical solution is adopted:

[0010] This utility model provides a fresh spirulina cultivation device, including: a frame, a support frame, a cultivation trough, and a fertilizer addition component;

[0011] The scaffold is installed above the support frame;

[0012] A film is installed on the outside of the shed; film rollers are provided on both sides of the shed, and the film rollers are connected to the film.

[0013] The aquaculture tank is set inside the shed; an algae collection pipe is connected to the bottom of the aquaculture tank; a vibration filter is installed at the outlet of the algae collection pipe; and the fertilizer addition component is connected to the aquaculture tank.

[0014] Preferably, the support frame includes an upper stop bar, a lower stop bar, and a column; both the upper stop bar and the lower stop bar are horizontally arranged, and the upper stop bar is located above the lower stop bar; the canopy is installed on the upper stop bar;

[0015] The columns are set vertically; there are two columns, with the upper stop bar connecting to the tops of the two columns at both ends, and the lower stop bar connecting to the middle of the two columns at both ends; the bottom of the columns is provided with foot posts.

[0016] Preferably, an adjusting screw is connected to the top of the column, and the upper stop bar is connected to the column via the adjusting screw.

[0017] Preferably, the fertilization assembly includes a liquid storage container, a fertilization pump, and a fertilization pipe; the liquid storage container is connected to the aquaculture tank via the fertilization pipe; and the fertilization pump is mounted on the fertilization pipe.

[0018] Preferably, the device further includes a stirring motor and a stirring paddle; the stirring paddle is located inside the liquid storage container; the output end of the stirring motor is connected to the stirring paddle.

[0019] Preferably, a heating element is laid at the bottom of the breeding tank, and an insulation board is installed below the heating element.

[0020] Preferably, the device further includes a solar power supply component connected to the heating element.

[0021] Preferably, the device further includes a blower, the outlet of which is connected to an aeration pipe, the aeration pipe extending into the aquaculture tank, and the portion of the aeration pipe located inside the aquaculture tank having aeration holes.

[0022] Preferably, the aquaculture tank is equipped with aeration stones.

[0023] Preferably, the device further includes an insect-proof net, which is disposed on the inside of the shed.

[0024] Compared with existing technologies, the above technical solution has the following technical effects:

[0025] (1) By setting up a shed and placing a film on the shed, a closed environment can be provided for the cultivation of spirulina, avoiding pollution and achieving the effect of rain and wind protection;

[0026] (2) By setting up a film winding machine, heat preservation and cooling functions can be flexibly realized;

[0027] (3) By setting up a support frame, the breeding tank can be raised, which not only effectively prevents pests such as rats and ants from infesting the tank, but also improves the cleanliness of the breeding environment.

[0028] (4) By setting up algae collection pipes and vibration filters, rapid harvesting and freezing of spirulina can be achieved, ensuring the safety of spirulina for direct consumption;

[0029] (5) The device can be directly installed on the roof of urban communities to enable all-weather spirulina cultivation. This method is easy to promote and is not restricted by urban management departments. It can provide urban residents with fresh, safe and hygienic fresh spirulina and reduce the difficulty of obtaining fresh spirulina.

[0030] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0032] Figure 1This is a schematic diagram of the overall structure of the fresh spirulina cultivation device according to an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of the structure of the shed according to an embodiment of this application;

[0034] Figure 3 This is a schematic diagram of the support frame according to an embodiment of this application;

[0035] Figure 4 This is a schematic block diagram of a solar power supply component according to an embodiment of this application.

[0036] In the diagram: 1. Film; 2. Shelf; 201. Arch; 202. Tie rod; 203. Trench fixing frame; 3. Insect net; 4. Fertilizer pipe; 5. Aquaculture trough; 6. Aeration stone; 7. Aeration pipe; 8. Film roller; 9. Support frame; 901. Upper stop bar; 902. Adjusting screw; 903. Column; 904. Lower stop bar; 905. Foot stake; 10. Blower; 11. Algae collection pipe; 12. Vibrating filter; 13. Fertilizer pump; 14. Liquid storage container; 15. Agitator; 16. Agitator motor; 17. Insulation board; 18. Heating element; 19. Solar power supply component; 1901. Solar panel; 1902. Controller; 1903. Battery pack; 1904. Inverter; 1905. Distribution box. Detailed Implementation

[0037] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description pertains only to preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described.

[0038] As described above, current fresh spirulina relies mainly on cold chain transportation, but the freezing process leads to the loss of active ingredients and makes "freshly harvested and consumed" impossible. Furthermore, existing fresh spirulina technologies also face hygiene issues, heavy metal contamination, and short shelf life. Specifically, current spirulina cultivation mostly uses open-air or greenhouse ground-level cultivation ponds, making it susceptible to contamination by insects and rodents, and compromising the quality of the algae sludge. The use of industrial-grade fertilizers and cement floors results in excessive heavy metal content in the algae sludge (spirulina is in sludge form), leading to poor product safety. Moreover, spirulina is prone to spoilage at high temperatures, requiring 3-4 hours of cold chain processing after harvesting, making it difficult to meet the immediate consumption needs of urban residents. To at least address some of these technical problems, this application provides a fresh spirulina cultivation device. This device has a simple overall structure and can achieve all-weather spirulina cultivation on the rooftops of urban communities, thus providing urban residents with fresh, safe, and hygienic fresh spirulina. The specific structure of this device is described in detail below.

[0039] To more clearly illustrate the technical solution in this application, the following will combine... Figure 1-4 A specific embodiment of this application will be described.

[0040] See also Figure 1-2 This embodiment provides a fresh spirulina cultivation device. The device includes a frame 2, a support frame 9, a cultivation trough 5, and a fertilizer feeding component; the frame 2 is installed above the support frame 9; a film 1 is installed on the outside of the frame 2; film rollers 8 are provided on both sides of the frame 2, and the film rollers 8 are connected to the film 1; the cultivation trough 5 is set inside the frame 2; an algae collection pipe 11 is connected to the bottom of the cultivation trough 5; a vibration filter 12 is provided at the outlet of the algae collection pipe 11; the fertilizer feeding component is connected to the cultivation trough 5.

[0041] The number of support frames 9 can be determined based on factors such as the size and weight of the shed 2 and the weight of the breeding trough 5. In such cases... Figure 2 In the embodiment shown, there are 6 support frames 9.

[0042] The shape and size of the scaffold 2 can be selected according to actual needs. For example... Figure 2 In the illustrated embodiment, the frame 2 consists of arch rods 201, tie rods 202, and a trough fixing frame 203. The arch rods 201 are fixed above the trough fixing frame 203, and the tie rods 202 connect multiple arch rods 201 to improve structural stability. The aquaculture trough 5 is placed on the trough fixing frame 203.

[0043] The material of scaffold 2 can be selected according to needs. (For example...) Figure 1 , 2 In the embodiment shown, the arch rod 201, tie rod 202 and groove fixing bracket 203 are all made of hot-dip galvanized steel pipe.

[0044] As described above, a film 1 is installed on the outside of the frame 2, and film rollers 8 are installed on both sides of the frame 2, with the film rollers 8 connected to the film 1. Thus, the film rollers 8 can be used to open and close the film 1 on the left and right sides of the frame 2, flexibly achieving heat preservation and cooling functions. Those skilled in the art will understand the working principle and installation method of the film rollers 8, and will not elaborate further.

[0045] In such Figure 1 In the illustrated embodiment, the device further includes an insect-proof net 3, which is disposed inside the frame 2. When the film 1 is opened, the insect-proof net 3 can provide protection for the aquaculture tank 5, preventing flying insects and other pests from entering the aquaculture tank 5 and contaminating the aquaculture water.

[0046] It is understandable that the number of aquaculture tanks 5 can be selected based on actual production needs and the capacity of a single tank. In such cases... Figure 1 In the embodiment shown, the capacity of a single culture tank 5 is 500L, and there are two culture tanks 5, with a total capacity of 1000L.

[0047] The material of the aquaculture tank 5 can be selected according to needs, such as food-grade materials like stainless steel, PP, PE, and PVC, to ensure the safety of the aquaculture environment. In this embodiment, food-grade PP sheets are used to make the aquaculture tank 5, and the tank body is spliced ​​by hot welding to ensure that the aquaculture tank 5 is leak-proof.

[0048] In this embodiment, the culture tank 5 contains spirulina culture water. The pH value of the culture water is within the range of [8.5, 10.5], and the temperature is within the range of [25℃, 35℃]. Zarrouk nutrient solution is used for nutrient supply. Natural light is used for illumination.

[0049] In this embodiment, an algae collection pipe 11 is connected to the bottom of the aquaculture tank 5; a vibrating filter 12 is installed at the outlet of the algae collection pipe 11, and a fertilization component is connected to the aquaculture tank 5. The fertilization component can deliver nutrient solution into the aquaculture tank 5. When the aquaculture water in the aquaculture tank 5 reaches a certain concentration, the water in the aquaculture tank 5 can be transported to the vibrating filter 12 through the algae collection pipe 11. A valve can be installed on the algae collection pipe 11 for easy opening and closing. Under the action of gravity, the algae sludge in the aquaculture water remains on the screen of the vibrating filter 12, while the filtrate is discharged and collected for re-culture. The screen of the vibrating filter 12 should preferably be 300-500 mesh. The algae sludge remaining on the screen can be packaged after being rinsed 2-3 times with pure water and delivered to users in a timely manner to achieve fresh harvesting and consumption. Of course, excess algae sludge can also be frozen after packaging to avoid spoilage. Even with direct freezing, due to the short transportation distance, the frozen algae sludge of this application has better nutritional components and taste compared to the prior art.

[0050] In the above technical solution, by setting up a shed 2 and placing a film 1 on the shed 2, a closed environment can be provided for spirulina cultivation, avoiding pollution and providing rain and wind protection. The film roller 8 allows for flexible heat preservation and cooling functions. The support frame 9 elevates the cultivation tank 5, effectively preventing pests such as rodents and ants and improving the cleanliness of the cultivation environment. The algae collection pipe 11 and vibrating filter 12 enable rapid harvesting and freezing of spirulina, ensuring its safety for direct consumption. This device can be directly installed on the rooftops of urban communities, enabling all-weather spirulina cultivation. This method is easy to promote, not restricted by urban management departments, and provides urban residents with fresh, safe, and hygienic spirulina, reducing the difficulty of obtaining fresh spirulina.

[0051] like Figure 3 As shown, according to the scheme of this embodiment, the support frame 9 includes an upper stop bar 901, a lower stop bar 904, and a column 903; both the upper stop bar 901 and the lower stop bar 904 are horizontally arranged, and the upper stop bar 901 is located above the lower stop bar 904; the canopy 2 is installed on the upper stop bar 901; the column 903 is vertically arranged; there are two columns 903, and the two ends of the upper stop bar 901 are respectively connected to the tops of the two columns 903, and the two ends of the lower stop bar 904 are respectively connected to the middle of the two columns 903; foot posts 905 are provided at the bottom of the column 903.

[0052] The materials of the upper stop bar 901, lower stop bar 904, column 903, and foot stake 905 can be selected as needed. In this embodiment, the upper stop bar 901, lower stop bar 904, and column 903 are all made of hot-dip galvanized steel pipe, and the foot stake 905 is made of thick plastic to prevent damage to the roof waterproofing layer when installed on the roof. In a scheme not shown in this embodiment, a rubber cushioning pad can be installed at the bottom of the foot stake 905.

[0053] The above solution combines the upper stop bar 901, the lower stop bar 904 and the column 903 to form the support frame 9, which can ensure the strength and support stability of the support frame 9. By setting the foot pile 905 at the bottom of the column 903, the contact area between the bottom of the column 903 and the roof can be increased, further improving the stability, and the bottom of the column 903 can be prevented from damaging the roof waterproof layer.

[0054] Continue reading Figure 3 According to the scheme of this embodiment, an adjusting screw 902 is connected to the top of the column 903, and the upper stop 901 is connected to the column 903 via the adjusting screw 902. In this scheme, the installation height of the upper stop 901 can be adjusted by adjusting the adjusting screw 902, thereby facilitating the adjustment of the ground distance of the breeding tank 5 as needed to meet the usage needs in different scenarios.

[0055] like Figure 1 As shown, according to the scheme of this embodiment, the fertilization component includes a storage container 14, a fertilization pump 13, and a fertilization pipe 4; the storage container 14 is connected to the cultivation tank 5 via the fertilization pipe 4; the fertilization pump 13 is installed on the fertilization pipe 4. In this embodiment, the storage container 14 stores nutrient solution (e.g., Zarrouk nutrient solution) for cultivating spirulina. The nutrient solution can be pumped into the cultivation tank 5 via the fertilization pump 13. In the above-described implementation scheme where the cultivation tank 5 is located on the roof, the fertilization component can be located downstairs to facilitate the user to replenish the nutrient solution in the storage container 14.

[0056] The above scheme facilitates the replenishment of nutrient solution in the culture tank 5, thereby ensuring that spirulina is cultured in a nutrient-rich environment and guaranteeing the cultivation efficiency of spirulina.

[0057] Continue reading Figure 1 In this embodiment, the device further includes a stirring motor 16 and a stirring paddle 15; the stirring paddle 15 is located inside the storage container 14; the output end of the stirring motor 16 is connected to the stirring paddle 15. The stirring motor 16 can drive the stirring paddle 15 to stir the nutrient solution in the storage container 14, thereby ensuring that the various components in the nutrient solution are evenly distributed, avoiding sedimentation and stratification, and making the nutrition more balanced. At the same time, this stirring method can increase the dissolved oxygen content in the nutrient solution, which is beneficial to the growth of spirulina when using this nutrient solution for cultivation.

[0058] Continue reading Figure 1 In this embodiment, a heating element 18 is laid at the bottom of the breeding tank 5, and an insulation board 17 is provided below the heating element 18.

[0059] The number of heating elements 18 can be one or more. When there are multiple heating elements 18, the multiple heating elements 18 are evenly laid on the bottom of the breeding tank 5.

[0060] The heating element 18 can be made of any existing or future-developed material. In this embodiment, a graphene heating element is used to heat the aquaculture tank 5. This graphene heating element can consist of three parts: a heating film, a temperature sensor, and a controller, enabling real-time (remote) monitoring and control of the spirulina aquaculture water temperature. In a specific implementation, the heating element 18 can be used to maintain the aquaculture water temperature within the range of [25℃, 35℃].

[0061] The above solution, by setting up heating elements 18 and insulation plates 17, can heat the aquaculture water through the heating elements 18 when the ambient temperature is low, and improve the heating effect by utilizing the insulation effect of the insulation plates 17, reducing heat loss. Therefore, the yield of fresh spirulina can be guaranteed even when the temperature is low, thus ensuring an uninterrupted supply of fresh spirulina.

[0062] like Figure 1 As shown, according to the scheme of this embodiment, the device also includes a blower 10, the outlet of the blower 10 is connected to an aeration pipe 7, the aeration pipe 7 extends into the aquaculture tank 5, and the portion of the aeration pipe 7 located in the aquaculture tank 5 is provided with aeration holes.

[0063] In this embodiment, the blower 10 is a high-pressure vortex blower 10, and its selection parameters are determined by air volume, air pressure, power and noise. The air compressed by the blower 10 is delivered to the bottom of the aquaculture tank 5 through the aeration pipe 7.

[0064] In embodiments not shown herein, a silencer and a dust filter screen may be installed at the inlet of the blower 10, and the outlet pipe of the blower 10 may be cooled by water.

[0065] The above scheme, by setting up blower 10 and aeration pipe 7, can input sufficient oxygen into the culture water in culture tank 5, which helps to ensure the cultivation efficiency of spirulina.

[0066] like Figure 1 As shown, according to the scheme of this embodiment, an aeration stone 6 is installed in the aquaculture tank 5. In such a way... Figure 1 In the illustrated scheme, aeration stone 6 can be located near the aeration holes. Aeration stone 6 can provide uniform dissolved oxygen, thereby further ensuring the cultivation efficiency of spirulina.

[0067] like Figure 4 As shown, according to the scheme of this embodiment, the device further includes a solar power supply component 19, which is connected to the heating element 18. In the scheme of this embodiment, the solar power supply component 19 can also be connected to a blower 10, a film winding machine 8, etc.

[0068] Continue reading Figure 4 The solar power supply assembly 19 includes a solar panel 1901, a controller 1902, a battery pack 1903, an inverter 1904, and a distribution box 1905. The solar panel 1901 is connected to the inverter 1904 and the battery pack 1903 via the controller 1902. The battery pack 1903 is connected to the inverter 1904, and the inverter 1904 is connected to the distribution box 1905. The output of the distribution box 1905 is connected to the components to be powered (e.g., heating element 18, blower 10, fertilizer pump 13, etc.).

[0069] In this embodiment, the solar panel 1901 can be a monocrystalline silicon or polycrystalline silicon solar panel 1901, with a conversion efficiency ≥20% and a single panel power of 300W. The number of panels is determined based on the roof area and the energy consumption requirements of the device. The battery pack 1903 uses lithium iron phosphate batteries with a capacity ≥10kWh, supporting ≥5000 charge-discharge cycles to ensure power supply at night and on cloudy days. The controller 1902 uses an MPPT (maximum power point tracking) controller with an efficiency ≥95% to adjust the output power of the solar panel 1901 in real time. The inverter 1904 is used to convert DC power to 220V AC power with a power ≥2kW and an efficiency ≥90%. The distribution box 1905 can integrate a circuit breaker, a leakage current protector, and a power monitoring module to ensure the safe operation of the system.

[0070] In one specific implementation, the number of solar panels 1901 can be multiple, connected in series and parallel. Each group consists of four solar panels 1901 connected in series (total voltage approximately 120V), and two groups are connected in parallel (total power 2.4kW). The output terminals of the solar panels 1901 are connected to a controller 1902, and the output terminal of the controller 1902 is connected to a battery pack 1903. The positive and negative terminals of the battery pack 1903 are connected to the output terminals of the controller 1902, and the power is converted to 220V AC by an inverter 1904. The output terminal of the inverter 1904 is connected to a distribution box 1905, which supplies power to the heating element 18, the blower 10, and the fertilizer pump 13. The distribution box 1905 has a built-in power monitoring module that displays the system's power generation, power consumption, and remaining battery power in real time. The distribution box 1905 is equipped with overvoltage, undervoltage, overcurrent, and short-circuit protection functions to ensure power supply safety. When used in a sunny environment, the solar panel 1901 generates electricity, which is preferentially supplied to the device's unsupplied parts via the controller 1902 and inverter 1904. Remaining electricity is stored in the battery bank 1903. When the solar panel 1901's power generation is insufficient, the battery bank 1903 can supplement the power supply. When used in a non-sunny environment (e.g., at night), the battery bank 1903 supplies power to the device's unsupplied parts. When the battery bank 1903's charge drops below 20%, it automatically switches to mains power. Testing (under the following conditions: 10 units installed on a community rooftop, solar power module 19 with a power of 5kW, operating continuously for 6 months) showed that the solar power module 19 generates an average daily power output ≥20kWh, the unsupplied parts of the device consume an average daily power of ≤15kWh, and the remaining electricity is stored in the battery bank 1903. The overall system efficiency is ≥85%, saving approximately 5000 yuan in electricity costs annually, and the annual power consumption of a single unit is ≤500kWh.

[0071] The above-mentioned technical solution, by combining solar power, can reduce energy consumption, which helps to reduce production costs.

[0072] In one implementation of this embodiment, the device installation steps are as follows: First, lay anti-slip mats on the roof and fix the support frame 9, ensuring that the contact area between the foot posts 905 of the support frame 9 and the floor surface is ≥80cm². Then, assemble the aquaculture tank 5. Next, install the shed body on the support frame 9. Place the aquaculture tank 5 inside the shed body and connect the aeration pipe 7, fertilizer pipe 4, and algae collection pipe 11. Lay heating elements 18 at the bottom of the aquaculture tank 5 and place insulation boards 17. Finally, install the film 1 and insect-proof net 3 on the shed body, and install and adjust the film rolling device 8.

[0073] In one implementation of this embodiment, the steps for cultivating spirulina using the device are as follows: A nutrient solution is prepared according to the Zarrouk formula, with the pH adjusted to 9.5±0.5, and injected into the cultivation tank 5 via the fertilization pump 13. In winter, the heating element 18 is activated to maintain the water temperature. In summer, the film 1 is opened using the film reel 8, and the water is cooled by the blower 10. When the concentration of algae sludge in the cultivation water reaches 3.6 g / L, the valve on the algae collection pipe 11 is opened, and the algae solution flows by gravity to the vibrating filter 12. The algae sludge remains on the screen of the vibrating filter 12 and can be packaged after being rinsed three times with purified water. After packaging, it can be directly delivered to users or frozen at -18℃. Testing (under the condition of installing 10 sets of devices on the roof of a community building and running continuously for 6 months) showed that the average monthly production of fresh algae sludge per set was 100 kg, with a total bacterial count ≤50 CFU / g. A user satisfaction survey showed that 95% of respondents believed that fresh algae tasted better than frozen algae. Furthermore, testing has shown that the retention rate of active ingredients such as β-carotene and gamma-linolenic acid in freshly harvested algae mud is ≥95% (compared to only 60% in frozen algae mud). The total bacterial count is ≤100 CFU / g (national standard ≤1000 CFU / g). Each unit can produce up to 1.2 tons of fresh algae mud annually, enough to meet the daily needs of 100 households.

[0074] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "horizontal", "top", and "bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0075] For ease of description, relative terms such as "above," "over," "on the upper surface of," and "above" are used here to describe the regional positional relationship of one or more components or features shown in the figures to other components or features. It should be understood that relative terms include not only the orientation of the component as depicted in the figure but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0076] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, components, parts, and / or combinations thereof.

[0077] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0078] This application has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the scope of the described embodiments. Furthermore, those skilled in the art will understand that this application is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this application, all of which fall within the scope of protection claimed in this application. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A device for cultivating fresh spirulina, characterized in that, include: Frames, support frames, breeding troughs, and fertilizer feeding components; The scaffold is installed above the support frame; A film is installed on the outside of the shed; film rollers are provided on both sides of the shed, and the film rollers are connected to the film. The aquaculture tank is set inside the shed; an algae collection pipe is connected to the bottom of the aquaculture tank; a vibration filter is installed at the outlet of the algae collection pipe; and the fertilizer addition component is connected to the aquaculture tank.

2. The fresh spirulina cultivation device according to claim 1, characterized in that, The support frame includes an upper stop bar, a lower stop bar, and a column; both the upper stop bar and the lower stop bar are horizontally arranged, with the upper stop bar located above the lower stop bar; the canopy is installed on the upper stop bar; The columns are set vertically; there are two columns, with the upper stop bar connecting to the tops of the two columns at both ends, and the lower stop bar connecting to the middle of the two columns at both ends; the bottom of the columns is provided with foot posts.

3. The fresh spirulina cultivation device according to claim 2, characterized in that, An adjusting screw is connected to the top of the column, and the upper stop bar is connected to the column via the adjusting screw.

4. The fresh spirulina cultivation device according to claim 1, characterized in that, The fertilization assembly includes a liquid storage container, a fertilization pump, and a fertilization pipe; the liquid storage container is connected to the aquaculture tank via the fertilization pipe; and the fertilization pump is mounted on the fertilization pipe.

5. The fresh spirulina cultivation device according to claim 4, characterized in that, It also includes a stirring motor and a stirring paddle; the stirring paddle is located inside the liquid storage container; the output end of the stirring motor is connected to the stirring paddle.

6. The fresh spirulina cultivation device according to claim 1, characterized in that, Heating pads are laid at the bottom of the breeding tank, and an insulation board is installed below the heating pads.

7. The fresh spirulina cultivation device according to claim 6, characterized in that, It also includes a solar power supply component, which is connected to the heating element.

8. The fresh spirulina cultivation device according to claim 1, characterized in that, It also includes a blower, the outlet of which is connected to an aeration pipe, the aeration pipe extending into the aquaculture tank, and the portion of the aeration pipe located inside the aquaculture tank having aeration holes.

9. The fresh spirulina cultivation device according to claim 8, characterized in that, The aquaculture tank is equipped with aeration stones.

10. The fresh spirulina cultivation device according to any one of claims 1-9, characterized in that, It also includes an insect-proof net, which is installed on the inside of the shed.

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