Reservoir enrichment algae extraction device

Abstract

The utility model discloses a reservoir enrichment algae extraction device which comprises an extraction mechanism and a water filtering mechanism, the extraction mechanism comprises an algae extraction pump, the algae extraction pump is communicated with a conveying pipe, and the conveying pipe is communicated with the water filtering mechanism; the water filtering mechanism comprises a spiral extrusion part, the end part of the spiral extrusion part is rotationally connected with a disc body part, and the disc body part is provided with a discharging hole; a filter cloth part is arranged on the outer side of the spiral extrusion part, a supporting pipe part is connected to the outer side of the filter cloth part in a sleeving mode, and water outlet holes are evenly distributed in the supporting pipe part. According to the description of the scheme, the algae extraction device has the beneficial effects that the structure is simple, the design is reasonable, and the moisture proportion of an extracted mixture can be continuously and uninterruptedly reduced in the algae extraction operation; and moreover, a filtering piece is not required to be arranged at the discharge hole for finally discharging the algae solid-liquid mixture, so that the resistance of the discharge hole is not very large, and the device is beneficial to the power burden of equipment and the load burden of parts.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection technology, and in particular to a reservoir algae enrichment and extraction device. Background Technology

[0002] Eutrophic algal blooms, especially cyanobacterial blooms, remain one of the major environmental problems facing my country. During spring and summer, cyanobacteria proliferate and accumulate on the water surface. Under certain meteorological conditions, they migrate towards the windward shoreline, causing localized algal accumulation. High concentrations of accumulated algae easily decompose at high temperatures, producing numerous toxic and harmful substances, further exacerbating water pollution. The treatment of accumulated cyanobacteria in reservoirs and lakeshores, as well as emergency control of cyanobacteria in drinking water sources, have become priority issues in addressing cyanobacterial disasters. Currently, methods for removing cyanobacteria from reservoirs mainly include mechanical harvesting, chemical algaecide treatment, and biological disinfection. Compared to chemical and biological methods, mechanical harvesting is the most direct and pollution-free method for removing cyanobacteria from water bodies.

[0003] A common method for removing cyanobacteria from water bodies such as reservoirs and rivers is to construct diversion barriers along the banks or use nets to first concentrate the cyanobacteria to a certain extent, and then use water pumps to lift the algae-rich water to an algae collection pond for subsequent concentration and dehydration treatment. This method has certain limitations, such as the water pump drawing in a large amount of water while pumping in the cyanobacteria, resulting in low cyanobacteria collection efficiency and increasing the workload of separating the cyanobacteria from the water later. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a reservoir algae enrichment and extraction device with a simple structure and reasonable design. During algae extraction, it can continuously reduce the water content of the extracted mixture. Furthermore, no filter is needed at the discharge port where the algae solid-liquid mixture is finally discharged, thus reducing the resistance at the discharge port. This is beneficial for both the power load and the load on the components of the equipment.

[0005] To achieve the above objectives, this utility model provides a reservoir algae enrichment and extraction device, including an extraction mechanism and a filtration mechanism. The extraction mechanism includes an algae extraction pump, which is connected to a delivery pipe, and the delivery pipe is connected to the filtration mechanism.

[0006] The water filtration mechanism includes a spiral extruder, and a disc is rotatably connected to the end of the spiral extruder. The disc is provided with a discharge hole.

[0007] The pitch of the spiral extruder gradually decreases from the end furthest from the discharge port to the end closest to the discharge port;

[0008] A filter cloth is provided on the outside of the spiral extruder, and a support tube is sleeved on the outside of the filter cloth. The support tube is provided with evenly distributed water outlet holes.

[0009] Furthermore, the water filtration mechanism also includes an inner tube, which surrounds the spiral extrusion member, and the filter cloth is wrapped around the outside of the inner tube. The end of the inner tube is connected to the disc member, and the tube wall of the inner tube that wraps the filter cloth is provided with water-permeable holes.

[0010] The permeable holes and the outlet holes are offset from each other.

[0011] Furthermore, the inner tube is provided with a feed hole on the side wall of the end away from the disc body, and the feed hole is connected to the conveying pipe;

[0012] The inner tube is provided with a buffer cavity at the location of the feed hole.

[0013] Furthermore, the inner diameters at both ends of the supporting pipe are equal to the outer diameter of the inner pipe, and the inner diameter between the two ends of the supporting pipe is greater than the outer diameter of the inner pipe.

[0014] Furthermore, a water receiving trough is installed below the supporting pipe, and both ends of the water receiving trough are sealed to the inner pipe, with a water outlet pipe connected to the bottom of the water receiving trough.

[0015] Furthermore, the disc body is connected to a pressure self-adjusting mechanism. Specifically, the center of the disc body is provided with a groove along its axial direction, and the disc body is provided with a spiral extrusion component connecting seat at the center of the groove. The discharge hole is provided in the groove, and the discharge hole is evenly distributed around the spiral extrusion component connecting seat.

[0016] The disc component has a mounting groove along its radial direction, and a guide hole is provided between the mounting groove and the groove. The guide hole is slidably connected to an orifice adjustment block. The movement trajectory of the end of the orifice adjustment block facing the center line of the disc component is located at the end of the discharge hole.

[0017] The end of the orifice adjusting block is provided with a limit block, and the limit block is slidably connected to the mounting groove;

[0018] A sealing block is fixedly connected to the mounting slot, and a spring is provided between the sealing block and the limiting block.

[0019] Furthermore, the end of the orifice adjusting block facing the centerline of the disc body is provided with an inclined surface.

[0020] The beneficial effects of this solution can be understood from the description of the above solution. Compared with the prior art, it has the following beneficial effects:

[0021] (1) In the algae extraction operation, the solid-liquid mixture of the algae to be extracted can be subjected to pressure filtration before the algae are collected, thereby reducing the water content of the solid-liquid mixture of algae.

[0022] (2) The combination of spiral extrusion and filter cloth is used for water filtration because the spiral extrusion can continuously provide pressure, thereby enabling the algae removal work to continue.

[0023] (3) Since algae are often extremely small, it is difficult to achieve continuous discharge of water and algae from different outlets. Therefore, this solution selects to discharge water around the filter cloth in the middle section of the spiral extrusion part. As the algae solid-liquid mixture moves forward, it will be continuously squeezed. After continuous drainage, it can provide an algae solid-liquid mixture with enough water.

[0024] Furthermore, there is no need to install a filter at the discharge port where the algae solid-liquid mixture is discharged at the end, so the resistance at the discharge port will not be too high, which is beneficial to the power load of the equipment and the load on the components.

[0025] (4) The purpose of setting up a pressure self-regulating mechanism is not to adjust the discharge speed, but to make the pressure inside the inner pipe fitting moderate, so that the inner cavity of the inner pipe fitting can be smoothly transported, and as much water as possible can be squeezed out.

[0026] (5) The inner tube can also prevent the filter cloth from coming into contact with the spiral extrusion part, which would cause the filter cloth to be damaged. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a schematic diagram of the water filtration mechanism of this utility model.

[0029] Figure 3 for Figure 2 A schematic diagram of the A-A cross section.

[0030] In the diagram, 1. Extraction mechanism; 2. Filtration mechanism; 3. Algae pump; 4. Delivery pipe; 5. Water receiving tank; 6. Screw extruder; 7. Disc body; 8. Discharge hole; 9. Inner tube; 10. Filter cloth; 11. Water permeable hole; 12. Support tube; 13. Water outlet; 14. Feed inlet; 15. Buffer chamber; 16. Water outlet pipe; 17. Pressure self-regulating mechanism; 18. Groove; 19. Screw extruder connecting seat; 20. Mounting groove; 21. Guide hole; 22. Orifice adjusting block; 23. Limiting block; 24. Sealing block; 25. Spring. Detailed Implementation

[0031] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0032] like Figure 1 As shown, this embodiment is a reservoir algae enrichment and extraction device, including an extraction mechanism 1 and a filtration mechanism 2. The extraction mechanism 1 includes an algae extraction pump 3, which is connected to a delivery pipe 4. The delivery pipe 4 is connected to the filtration mechanism 2, and the filtration mechanism 2 is connected to a water receiving tank 5.

[0033] like Figure 2 As shown, the water filtration mechanism 2 includes a spiral extruder 6, with a disc 7 rotatably connected to the end of the spiral extruder 6. The disc 7 has a discharge hole 8. The pitch of the spiral extruder 6 gradually decreases from the end furthest from the discharge hole 8 to the end closest to the discharge hole 8. An inner tube 9 and a filter cloth 10 are arranged on the outside of the spiral extruder 6. The inner tube 9 surrounds the spiral extruder 6, and the filter cloth 10 wraps around the outside of the inner tube 9. The end of the inner tube 9 is connected to the disc 7. The tube wall of the inner tube 9 wrapping the filter cloth 10 has water permeable holes 11. A support tube 12 is sleeved on the outside of the filter cloth 10. The support tube 12 has evenly distributed water outlet holes 13, and the water permeable holes 11 and water outlet holes 13 are staggered. The inner diameter of both ends of the support tube 12 is equal to the outer diameter of the inner tube 9, and the inner diameter of the part between the two ends of the support tube 12 is greater than the outer diameter of the inner tube 9.

[0034] The inner tube 9 has a feed hole 14 on the side wall away from the disc 7, and the feed hole 14 is connected to the conveying pipe 4; a buffer cavity 15 is provided at the position where the feed hole 14 is located in the inner tube 9.

[0035] A water receiving trough 5 is installed below the support pipe 12. Both ends of the water receiving trough 5 are sealed to the inner pipe 9. A water outlet pipe 16 is connected to the bottom of the water receiving trough 5.

[0036] When the algae solid-liquid mixture enters the inner cavity of the inner tube 9, it is pushed forward by the spiral extruder 6 and subjected to pressure during the process, causing water to seep out through the permeable holes of the inner tube 9. After being filtered by the filter cloth 10, the water will be discharged from the outlet hole 13 of the support tube 12, fall into the water collection tank 5, and then be discharged through the outlet pipe 16.

[0037] like Figure 3As shown, the disc component 7 is connected to a pressure self-adjusting mechanism 17. Specifically, a groove 18 is provided along the axial direction of the center of the disc component 7, and a spiral extrusion component connecting seat 19 is provided at the center of the groove 18. Discharge holes 8 are provided in the groove 18 and are evenly distributed around the spiral extrusion component connecting seat 19. An installation groove 20 is provided radially along the disc component 7. A guide hole 21 is provided between the installation groove 20 and the groove 18, and an orifice adjusting block 22 is slidably connected to the guide hole 21. The movement trajectory of the end of the orifice adjusting block 22 facing the axis of the disc component 7 is located at the end of the discharge hole 8. A limit block 23 is provided at the tail end of the orifice adjusting block 22, and the limit block 23 is slidably connected to the installation groove 20. A sealing block 24 is fixedly connected to the installation groove 20, and a spring 25 is provided between the sealing block 24 and the limit block 23. An inclined surface is provided at the end of the orifice adjusting block 22 facing the axis of the disc component 7.

[0038] Because the water needs to be squeezed out of the algae solid-liquid mixture, the inner cavity of the inner tube 9 needs to have sufficient pressure; however, if the pressure is too high, it will increase the power load on the spiral extruder 6, and the strength load on the related components will also increase. Therefore, the pressure cannot be too high.

[0039] At the contact point between the inner tube 9 and the disc 7, the pressure of the algae solid-liquid mixture will be transmitted to the orifice adjusting block 22, forcing the orifice adjusting block 22 to compress the spring 25.

[0040] When the pressure at the contact point between the inner tube 9 and the disc 7 is too high, the spring 25 contracts, the orifice adjusting block 22 reduces the obstruction of the discharge hole 8, the discharge speed of the algae solid-liquid mixture increases, and the pressure begins to decrease.

[0041] When the pressure at the contact point between the inner tube 9 and the disc 7 is too low, the spring 25 extends, the orifice adjusting block 22 increases to block the discharge hole 8, the discharge speed of the algae solid-liquid mixture decreases, and the pressure begins to increase.

[0042] In operation, this device can be hung on the outside of the hull, and the specific mounting method is not limited, as long as it serves a fixing function. It can be used to collect concentrated algae solution by moving the hull in the reservoir; or the device can be directly fixed on the bank of the reservoir, and the water body can be naturally moved closer to the algae pump 3 by suction.

[0043] The algae pump 3 extracts an algae solid-liquid mixture containing a large amount of water, and then transports it to the inner pipe 9 through the conveying pipe 4. Inside the inner pipe 9, the spiral extruder 6 rotates continuously, constantly conveying the algae solid-liquid mixture forward while gradually increasing the pressure to squeeze it. As the pressure gradually increases, the water in the algae solid-liquid mixture is gradually discharged through the water permeable hole 11, the filter cloth 10, and the water outlet 13. Since the algae cannot pass through the filter cloth 10, it can only be pushed forward by the spiral extruder 6 until it is discharged through the discharge hole 8. The water discharged through the water permeable hole 11 falls into the water receiving tank and is then drained away. The algae solid-liquid mixture that has passed through the discharge hole 8 is then sent to the collection position.

[0044] For example, the storage device can be a storage tube that is closed at one end and connected to the outside of the disc body 7, and a suction pump connected to the other end of the storage tube; or a storage box can be fixed directly to the outside of the disc body 7, and the concentrated algae can be directly put into the storage box for temporary storage, which will not be described in detail here.

[0045] The technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A reservoir algae enrichment and extraction device, characterized in that, It includes an extraction mechanism (1) and a filtration mechanism (2). The extraction mechanism (1) includes an algae pump (3), which is connected to a delivery pipe (4). The delivery pipe (4) is connected to the filtration mechanism (2). The water filtration mechanism (2) includes a spiral extrusion component (6), and a disc component (7) is rotatably connected to the end of the spiral extrusion component (6). The disc component (7) is provided with a discharge hole (8). The pitch of the spiral extruder (6) gradually decreases from the end away from the discharge hole (8) to the end close to the discharge hole (8); A filter cloth (10) is provided on the outside of the spiral extrusion member (6), and a support tube (12) is sleeved on the outside of the filter cloth (10). The support tube (12) is provided with evenly distributed water outlet holes (13).

2. The reservoir algae enrichment and extraction device according to claim 1, characterized in that, The water filtration mechanism (2) also includes an inner tube (9), which surrounds the spiral extrusion member (6). The filter cloth member (10) is wrapped around the outside of the inner tube (9). The end of the inner tube (9) is connected to the disc member (7). The inner tube (9) is provided with water-permeable holes (11) on the tube wall of the filter cloth member (10). The permeable hole (11) is offset from the outlet hole (13).

3. The reservoir algae enrichment and extraction device according to claim 2, characterized in that, The inner tube (9) has a feed hole (14) on one side wall away from the disc (7), and the feed hole (14) is connected to the conveying pipe (4); The inner tube (9) has a buffer cavity (15) at the position of the feed hole (14).

4. The reservoir algae enrichment and extraction device according to claim 2, characterized in that, The inner diameter of both ends of the support pipe (12) is equal to the outer diameter of the inner pipe (9), and the inner diameter of the part between the two ends of the support pipe (12) is greater than the outer diameter of the inner pipe (9).

5. The reservoir algae enrichment and extraction device according to claim 2, characterized in that, A water receiving trough (5) is installed below the supporting pipe (12). The two ends of the water receiving trough (5) are sealed to the inner pipe (9). A water outlet pipe (16) is connected to the bottom of the water receiving trough (5).

6. The reservoir algae enrichment and extraction device according to claim 1, characterized in that, The disc body (7) is connected to a pressure self-adjusting mechanism (17). Specifically, the disc body (7) has a groove (18) along its axial direction at its center. The disc body (7) has a spiral extrusion connector (19) at the center of the groove (18). The discharge hole (8) is located in the groove (18) and is evenly distributed around the spiral extrusion connector (19). The disc body (7) is provided with a mounting groove (20) along its radial direction. A guide hole (21) is provided between the mounting groove (20) and the groove (18). The guide hole (21) is slidably connected to an orifice adjustment block (22). The movement trajectory of the end of the orifice adjustment block (22) facing the axis of the disc body (7) is located at the end of the discharge hole (8). The end of the orifice adjusting block (22) is provided with a limiting block (23), and the limiting block (23) is slidably connected to the mounting groove (20). The mounting slot (20) is fixedly connected to a sealing block (24), and a spring (25) is provided between the sealing block (24) and the limiting block (23).

7. The reservoir algae enrichment and extraction device according to claim 6, characterized in that, The orifice adjusting block (22) has an inclined surface at one end facing the center line of the disk body (7).

Images