Solar energy blue-green algae drying equipment

Abstract

The utility model discloses a solar energy blue algae drying equipment, including drying box, be provided with drying department on the drying box, the drying department includes the heat preservation chamber of being located the outside of drying box, is provided with the heat dissipation coil pipe that surrounds the outer wall of drying box in the heat preservation chamber, the heat dissipation coil pipe outside is connected with hot oil solar energy heating assembly, the heat preservation chamber is the sealed cavity, the upper end of heat preservation chamber is connected with the fan, the air outlet of fan is communicated with heat preservation chamber through fan air pipe, the lower portion communication of heat preservation chamber has hot -blast pipeline, the lower portion of hot -blast pipeline passes through the bottom plate of drying box and is communicated with drying box in, the utility model discloses through the heat conduction oil heat transfer, and directly used for hot processing area, reduces the loss of heat transmission multistage, and the present application provides heating and hot -blast drying through the utilization solar energy, thereby reduced the dependence on existing power, improved the adaptive performance of the drying equipment of the present application.

Description

Technical Field

[0001] This utility model relates to the field of cyanobacteria treatment technology, specifically a solar-powered cyanobacteria drying device. Background Technology

[0002] Frequent cyanobacterial blooms and increased algal bloom areas cause massive pollution to water bodies due to the decomposition of large amounts of dead algae, affecting drinking water quality and threatening human health. Currently, some fixed cyanobacterial flocculation treatment facilities have been built in the lake area. After being sucked in and treated with flocculants, the algae are dehydrated and then composted for agricultural use. However, due to the high cost of cyanobacterial treatment and unstable yield, the utilization rate of cyanobacterial fertilizer is extremely low. Secondly, cyanobacterial algae are pumped from the water intake of waterworks and transported day and night by multiple large engineering vehicles to various low-lying areas to decompose, producing foul odors that affect air quality. Shallow-surface pumps handle cyanobacterial algae with a water content of up to 99%, resulting in particularly high transportation costs. Furthermore, during periods of continuous rainfall and concentrated precipitation, the algae flow into rivers, causing secondary pollution.

[0003] Large areas of water are scattered in rural areas, and the power transmission facilities are mainly for agricultural production. Reservoirs and lakes cannot be fully covered. Blue-green algae accumulate in many depressions along the shore, making it difficult to access electricity. In addition, the power consumption is particularly large and the cost is high, making it impossible to efficiently dry and recycle the blue-green algae. Utility Model Content

[0004] The purpose of this invention is to provide a solar-powered cyanobacteria drying device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A solar-powered cyanobacteria drying device includes a drying box, on which a drying section is provided; The drying section includes an insulated cavity located outside the drying chamber. A heat dissipation coil is installed inside the insulated cavity, surrounding the outer wall of the drying chamber. A hot oil solar heating component is connected to the outside of the heat dissipation coil. The insulated cavity is a sealed cavity. A fan is connected to the upper end of the insulated cavity. The air outlet of the fan is connected to the insulated cavity through a fan duct. A hot air duct is connected to the lower part of the insulated cavity. The lower part of the hot air duct passes through the bottom plate of the drying chamber and is connected to the inside of the drying chamber.

[0006] As a further embodiment of this utility model: the hot oil solar heating component includes an oil storage chamber and multiple vacuum solar collector tubes connected to the oil storage chamber.

[0007] As a further embodiment of this utility model: the oil storage chamber is connected to the heat dissipation coil through a hot oil pipe to form a hot oil circulation pipe, and an oil pump and an oil circuit valve are provided on the hot oil pipe.

[0008] As a further embodiment of this utility model: heat-conducting oil is provided in the oil storage chamber, and a vent pipe and a temperature controller are connected to the oil storage chamber.

[0009] As a further embodiment of this utility model: heat sinks are connected to the heat dissipation coil.

[0010] As a further embodiment of this utility model: an exhaust pipe is connected to the hot air duct, and a safety valve is installed on the exhaust pipe.

[0011] As a further embodiment of this utility model: the lower part of the drying oven is a conical structure, and a drain filter is provided at the bottom of the conical structure, and a filter screen is detachably connected inside the drain filter.

[0012] As a further embodiment of this invention, a stirring device is provided inside the drying oven.

[0013] As a further embodiment of this utility model, a material suction machine is provided on the drying box.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This utility model transfers heat through heat transfer oil and directly applies it to the heat processing area, reducing the loss in multiple stages of heat transfer. Since the large lake and drinking water source areas are far from the city, covering tens or hundreds of kilometers, most of the electricity cannot reach the areas where blue-green algae gather. However, this application uses solar energy to provide heating and hot air drying, thus reducing the dependence on existing electricity and improving the adaptability of the drying equipment of this application. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure in this embodiment; In the diagram: 1-Feeder, 2-Vacuum solar collector tube, 3-Oil storage chamber, 4-Heat transfer oil, 5-Hot oil pipe, 6-Cooling coil, 7-Heat fin, 8-Fan, 9-Fan duct, 10-Insulation chamber, 11-Hot air pipe, 12-Drying oven, 13-Plant pellets, 14-Ventilation pipe, 15-Thermostat, 16-Oil pump, 17-Safety valve, 18-Drain filter, 19-Oil circuit valve. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1In this embodiment of the present invention, a solar-powered cyanobacteria drying device includes a drying chamber 12, on which a drying section is provided. The drying section includes an insulation cavity 10 located outside the drying chamber 12 to avoid heat loss and reduce energy consumption. A heat dissipation coil 6 is provided inside the insulation cavity 10, surrounding the outer wall of the drying chamber 12. Heat dissipation fins 7 are connected to the heat dissipation coil 6. A hot oil solar heating component is connected to the outside of the heat dissipation coil 6. The insulation cavity 10 is a sealed cavity. A fan 8 is connected to the upper end of the insulation cavity 10. The air outlet of the fan 8 is connected to the insulation cavity 10 through a fan duct 9. A hot air duct 11 is connected to the lower part of the insulation cavity 10. The lower part of the hot air duct 11 passes through the bottom plate of the drying chamber 12 and is connected to the inside of the drying chamber 12. An exhaust pipe is connected to the hot air duct 11. A safety valve 17 is provided on the exhaust pipe. When the pressure inside the insulation cavity is too high, the exhaust pipe can be opened by the safety valve 17 to release air and reduce pressure, ensuring safety.

[0018] The hot oil solar heating component includes an oil storage chamber 3 and multiple vacuum solar collector tubes 2 connected to the oil storage chamber 3. The oil storage chamber 3 is connected to the heat dissipation coil 6 through a hot oil pipe 5 to form a hot oil circulation pipe. The oil storage chamber 3 is filled with heat transfer oil 4. A vent pipe 14 and a thermostat 15 are connected to the oil storage chamber 3. An oil pump 16 and an oil circuit valve 20 are installed on the hot oil pipe 5. The oil circuit valve 20 and the oil pump are arranged in parallel. When the heat transfer is smooth, the heat transfer oil flows automatically. When the flow of the heat transfer oil 4 is not smooth, the bypass oil circuit valve 20 is closed and the oil pump 16 is turned on to increase the flow of oil and the heat transfer efficiency.

[0019] The lower part of the drying chamber 12 is a conical structure, and a drain filter 18 is provided at the bottom of the conical structure. A filter screen is detachably connected inside the drain filter 18. A stirring device is provided inside the drying chamber 12, and a suction machine 1 is provided on the drying chamber 12. The suction machine 1 is an electric suction machine.

[0020] When using this invention, the cyanobacteria to be dried and the plant filter material 13 are first put into the drying box 12. Since the water content in the cyanobacteria is very high at this time, the drain filter 18 is opened first. Under the action of gravity, some of the water in the cyanobacteria will be drained through the filter screen from the drain filter 18. When the water content of the cyanobacteria decreases, it is impossible to reduce the water content in the cyanobacteria through filtration. At this time, a lot of material accumulates on the filter screen and is thick. The hot air pressure from the fan blows the material upward. During the self-draining process through the drain filter 18, hot oil enters the heat dissipation coil 6 through the hot oil pipe 5. The heat dissipation coil 6 heats the insulation cavity 10 and the drying box 12 which is in close contact with the heat dissipation coil 6. First, the heating of the drying box 12 by the heat dissipation coil 6 raises the temperature inside the drying box 12. The increased temperature is conducive to the evaporation of moisture in the cyanobacteria. After the drain filter 18 is closed, the fan 18 is started. The fan 18 sends hot air into the insulation cavity 10 through the fan duct 9. The air in the insulation cavity 10 contacts the heat dissipation fins 7 and exchanges heat to become hot air. The hot air enters the drying box 12 from the bottom through the hot air duct 11 and flows upward inside the drying box 12. At the same time, the material in the drying box 12 is stirred by the stirring device. Then, while stirring, the moisture in the cyanobacteria is carried away by the hot air flow, thus completing the drying of the cyanobacteria. The dried cyanobacteria feed can be discharged from the drying box 12 through the suction feeder 1.

[0021] Submersible pumps draw water with high algae density from rivers and lakes. This water is then filtered through plant particles such as bran, rice husks, and bone meal to remove most of the moisture. Once the amount of attached cyanobacteria reaches the required protein content for the feed, the collected solar heat is transported to the drying chamber via heat transfer oil. The temperature inside the drying chamber rises, and rotating stirring rods thoroughly mix the cyanobacteria feed. Hot air disperses the cyanobacteria feed, resulting in a significant drying effect. This process also ensures that the cyanobacteria contain 60-70% protein, a crucial component of the feed, turning pollution into a valuable resource. From a biological perspective, cyanobacteria existed before other life forms; fish have coexisted with cyanobacteria since ancient times, and the practice of fish consuming algae has a long history, contributing to the restoration of aquatic ecosystems.

[0022] 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. 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 solar-powered cyanobacteria drying device, comprising a drying chamber (12), characterized in that, The drying box (12) is equipped with a drying section; The drying section includes an insulation cavity (10) located outside the drying box (12). A heat dissipation coil (6) is provided inside the insulation cavity (10) surrounding the outer wall of the drying box (12). A hot oil solar heating component is connected to the outside of the heat dissipation coil (6). The insulation cavity (10) is a sealed cavity. A fan (8) is connected to the upper end of the insulation cavity (10). The air outlet of the fan (8) is connected to the insulation cavity (10) through a fan duct (9). A hot air duct (11) is connected to the lower part of the insulation cavity (10). The lower part of the hot air duct (11) passes through the bottom plate of the drying box (12) and is connected to the inside of the drying box (12).

2. The solar-powered cyanobacteria drying equipment according to claim 1, characterized in that, The hot oil solar heating component includes an oil storage chamber (3) and multiple vacuum solar collector tubes (2) connected to the oil storage chamber (3).

3. The solar-powered cyanobacteria drying equipment according to claim 2, characterized in that, The oil storage chamber (3) is connected to the heat dissipation coil (6) through the hot oil pipe (5) to form a hot oil circulation pipe. The hot oil pipe (5) is equipped with an oil pump (16) and an oil circuit valve (19).

4. The solar-powered cyanobacteria drying equipment according to claim 2, characterized in that, The oil storage chamber (3) is filled with heat-conducting oil (4), and the oil storage chamber (3) is connected to a vent pipe (14) and a temperature controller (15).

5. The solar-powered cyanobacteria drying equipment according to claim 1, characterized in that, The heat dissipation coil (6) is connected to a heat sink (7).

6. The solar-powered cyanobacteria drying equipment according to claim 1, characterized in that, An exhaust pipe is connected to the hot air duct (11), and a safety valve (17) is installed on the exhaust pipe.

7. The solar-powered cyanobacteria drying equipment according to claim 1, characterized in that, The lower part of the drying box (12) is a conical structure, and a drain filter (18) is provided at the bottom of the conical structure. A filter screen is detachably connected inside the drain filter (18).

8. The solar-powered cyanobacteria drying equipment according to claim 1, characterized in that, The drying oven (12) is equipped with a stirring device.

9. The solar-powered cyanobacteria drying equipment according to claim 1, characterized in that, The drying box (12) is equipped with a suction machine (1).

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