Preparation device of algae for treating wastewater containing heavy metals

Abstract

The invention belongs to the technical field of algae wastewater treatment devices, and particularly relates to an algae preparation device for treating wastewater containing heavy metals, the algae preparation device comprises an open-type raceway pond, and a PH meter is mounted in the open-type raceway pond; an adjusting mechanism is arranged on the open-type raceway pond and comprises a connecting seat fixedly mounted at the top of the open-type raceway pond; according to the invention, the two fixed cylinders are designed to pre-store the required acidic solution and alkaline solution, so that the required dosage can be accurately put according to actual needs; meanwhile, the fixing cylinder has good sealing performance and safety, and leakage of the acid solution and the alkaline solution in the storage process can be effectively prevented. And meanwhile, a PH meter is matched for monitoring and putting a required solution in real time, so that the pH value in the open-type raceway pond can be more efficiently improved, the heavy metals in the wastewater can be more efficiently purified by the algae, and the purification effect and efficiency are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of algae wastewater treatment devices, in particular to an algae preparation device for treating wastewater containing heavy metals. Background Art

[0002] Open raceway pools are often used when preparing algae. Open raceway pools are shaped like a raceway, with a circular water flow channel, an inlet at one end or side of the pool, and an outlet at the other end. Open raceway pools allow algae to be evenly distributed in the water body and fully exposed to light and nutrients. Many heavy metals in wastewater have high economic value, such as copper, zinc, and nickel. Algae can adsorb and enrich these heavy metals. Through subsequent treatment, these heavy metals can be recovered from the algae, realizing resource reuse, reducing the cost of heavy metal treatment, and also reducing the exploitation of natural resources.

[0003] Algae purifies heavy metals in wastewater mainly through biosorption, bioaccumulation and biotransformation. Biosorption: There are many functional groups on the surface of algae cells, such as hydroxyl, carboxyl, amino, etc. These groups can exchange ions, complex, electrostatically adsorb, etc. with heavy metal ions, and adsorb heavy metal ions on the cell surface. Bioaccumulation: Algae cells can transport heavy metal ions adsorbed on the cell surface to the inside of the cell through active transport and other methods for bioaccumulation. In cells, heavy metal ions can combine with biological macromolecules such as proteins and polysaccharides in cells to form stable complexes, thereby reducing the toxicity of heavy metal ions. Biotransformation: Algae can convert heavy metal ions into less toxic or easier to precipitate forms through their own metabolic activities. For example, algae can reduce hexavalent chromium to trivalent chromium, which is less toxic and easier to precipitate in water, thereby achieving the removal of heavy metals.

[0004] When using algae in open raceway pools to purify heavy metals in wastewater, most open raceway pools do not have equipment to monitor and adjust the pH value in the pool, resulting in the inability to monitor and adjust in real time. Various enzymatic reactions in algae cells can only proceed normally under a suitable pH environment. When the pH value is too high or too low, it will change the structure of the active center of the enzyme, reduce the activity of the enzyme or even inactivate it, thereby affecting the photosynthesis, respiration and other physiological metabolic processes of the algae, affecting the growth and reproduction of the algae, and ultimately affecting the algae's purification effect on heavy metals in wastewater.

[0005] To this end, the present invention provides an algae preparation device for treating heavy metal-containing wastewater. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the algae preparation device for treating heavy metal-containing wastewater described in the present invention includes an open runway pool, in which a pH meter is installed; an adjustment mechanism is arranged on the open runway pool, and the adjustment mechanism includes a connecting seat fixedly installed on the top of the open runway pool, an electric push rod is fixedly installed in the connecting seat, and a fixed disk is fixedly installed on the output end of the electric push rod. Two symmetrically arranged fixed cylinders are fixedly installed on the connecting seat, and the two fixed cylinders are respectively filled with an acidic solution and an alkaline solution. A sliding cylinder is arranged in the fixed cylinder, and a connecting rod is slidably connected in the sliding cylinder. A connecting disk is fixedly sleeved on the surface of the connecting rod, and the fixed disk and the connecting disk are fixedly connected. A positioning assembly is arranged in the sliding cylinder, and a liquid outlet pipe connected to the interior is fixedly installed at the bottom of the fixed cylinder, and a liquid inlet pipe connected to the interior and provided with a one-way valve is fixedly installed on one side of the fixed cylinder. A rectangular frame is fixedly installed in the open runway pool, and a plurality of liquid outlets are provided at the bottom of the rectangular frame, and one end of the liquid outlet pipe away from the fixed cylinder is connected to the interior of the rectangular frame; the positioning assembly comprises a first electromagnet fixedly installed at the bottom of the connecting rod and in the sliding cylinder, and a second electromagnet is fixedly installed in the sliding cylinder.

[0008] Furthermore, a sealing ring is fixedly installed inside the slide cylinder, and filter screens are fixedly installed inside the plurality of liquid outlets of the rectangular frame.

[0009] Furthermore, a swing mechanism is provided in the fixed cylinder, and the swing mechanism includes two fixed rods fixedly connected to the connecting rod, the fixed rods pass through the sliding cylinder and are located in the fixed cylinder, and the bottoms of the fixed rods are rotatably connected to the fan blades.

[0010] Furthermore, a connecting rope is fixedly installed at the bottom of the fan blade, and a connecting ball is fixedly installed at the bottom of the connecting rope.

[0011] Furthermore, a material control mechanism is provided on the fixed cylinder, and the material control mechanism includes a plurality of hollow elastic columns fixedly installed on the top of the fixed cylinder, and an air guide tube connected to the interior is fixedly installed on one side of the elastic column;

[0012] A plurality of first cavities and a plurality of second cavities are provided in the rectangular frame, the first cavities and the second cavities are symmetrically distributed about the central axis of the liquid outlet, a single first cavity and a single second cavity form a group, a sealing stirring assembly is provided in each of the first cavity and the second cavity, a baffle is sealingly and slidably connected in the first cavity and the second cavity, a through groove penetrating the baffle is provided on the top of the baffle, a spring is fixedly installed in the second cavity, one end of the spring is fixedly connected to the baffle, and an end of the air guide tube away from the elastic column is connected to the interior of the first cavity.

[0013] Furthermore, the sealing and stirring assembly includes two bellows, and rubber rings are installed in the first cavity and the second cavity to assist the bellows in sealing.

[0014] Furthermore, the sealing stirring assembly also includes two connecting columns fixedly mounted on the bottom of the baffle, the bottom of the connecting column is fixedly mounted with a bottom column, the surface of the bottom column is fixedly mounted with a plurality of stirring plates, and the surface of the stirring plate is fixedly mounted with an auxiliary plate. One end of the bellows is fixedly connected to the rectangular frame, and the other end of the bellows is fixedly connected to the connecting column.

[0015] Furthermore, the stirring plate and the auxiliary plate are both arc-shaped, and one side of the stirring plate and the auxiliary plate is provided with a plurality of through holes penetrating through the stirring plate and the auxiliary plate.

[0016] Furthermore, a limiting component is provided on the baffle, and the limiting component includes an arc-shaped positioning groove opened on the top of the baffle, and a protrusion made of rubber material is fixedly installed in the first cavity.

[0017] Furthermore, the bottom of the baffle is rotatably connected to a plurality of impact blocks via a torsion spring, and the impact blocks are arc-shaped and the bottoms thereof are in contact with the filter screen.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The algae preparation device for treating heavy metal-containing wastewater described in the present invention starts the electric push rod in the connecting seat, so that the output end of the electric push rod moves downward with the fixed disk, the connecting disk and the connecting rod. The connecting rod in the fixed cylinder filled with the acidic solution slides downward with the sliding cylinder, and squeezes the acidic solution in the fixed cylinder into the rectangular frame through the liquid outlet pipe, and the acidic solution is sprayed into the open runway pool through the liquid outlet and the filter screen of the rectangular frame. Through the two designed fixed cylinders, the required acidic solution and alkaline solution can be stored in advance, and then the required dosage can be accurately delivered according to actual needs; at the same time, the fixed cylinder has good sealing and safety, and can effectively prevent the leakage of acid and alkaline solutions during storage. Compared with the direct delivery of acid and alkaline solutions using pipelines, the pipelines will leak due to corrosion, aging, loose joints, etc., while the fixed cylinders are relatively easier to inspect and maintain, reducing the risk of acid and alkali leakage causing harm to the surrounding environment and personnel. At the same time, using a pH meter to monitor in real time and add the required solution can more efficiently improve the pH value in the open runway pool, allowing algae to purify heavy metals in the wastewater more efficiently, improving purification effects and efficiency.

[0020] 2. The algae preparation device for treating heavy metal-containing wastewater described in the present invention needs to be stirred before use when the acid and alkaline solutions in the fixed cylinder have been left unused for a long time. At this time, the first electromagnet and the second electromagnet in the two fixed cylinders are not energized, and the connecting rod moves toward the fixed cylinder containing the solution together with the fan blades through the fixed rod. The fan blades will rotate when they come into contact with the liquid and continue to move downward, and then rotate with the connecting rope and the connecting ball, and the solution in the fixed cylinder is stirred by the rotation of the fan blades, while the connecting rope and the connecting ball assist in stirring the solution. The designed swing mechanism can realize rapid stirring of solutions that have been standing for a long time, effectively preventing solution precipitation and solution stratification, thereby ensuring that the acidity, alkalinity and component ratios of each part of the solution are consistent, and ensuring the accuracy and stability of the pH value adjustment.

[0021] 3. In the algae preparation device for treating heavy metal-containing wastewater described in the present invention, after most of the solution in the fixed cylinder is squeezed into the rectangular frame, the connecting rod continues to move and drives the connecting plate to squeeze the elastic column on the fixed cylinder, so that the gas in several elastic columns enters the corresponding second cavity through several air ducts. After entering the second cavity, the gas will push the baffle to move toward the liquid outlet, and the through groove of the baffle and the liquid outlet overlap, so that the acidic solution in the rectangular frame can flow into the rectangular frame through the through groove and the liquid outlet. Through the designed structure of the baffle and the elastic column, the acidic solution will first flow into the rectangular frame and will not be discharged directly. This design allows the open runway pool to quickly replenish the required acidic solution away from the liquid outlet, achieving uniform and rapid discharge of the acidic solution, while also improving the accuracy of subsequent pH meter detection.

[0022] When the cover moves, it will bring the impact block to continuously impact the surface of the filter, causing the filter to vibrate, thereby effectively preventing impurities from clogging the filter mesh when not in use. When the baffle moves, it will move with the bellows, connecting column, bottom column, stirring plate and auxiliary plate. The bellows assists in closing the first cavity and the second cavity, making it easier for the gas in the elastic column to fill the second cavity and push the baffle to move. The movement of the stirring plate and the auxiliary plate stirs the wastewater in the open runway pool and the inflowing acidic solution, so that the acidic solution can quickly mix with the water in the open runway pool and adjust the pH value in the open runway pool. The stirring plate and the auxiliary plate are designed to be arc-shaped for better stirring, and a number of through holes are provided to facilitate the flow and mixing of liquids. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the open runway pool in the present invention;

[0025] Figure 2It is a structural schematic diagram of the connecting seat in the present invention;

[0026] Figure 3 It is a structural schematic diagram of the electric push rod in the present invention;

[0027] Figure 4 It is a front cross-sectional structural schematic diagram of the fixing cylinder in the present invention;

[0028] Figure 5 The present invention Figure 4 A schematic diagram of the structure at A;

[0029] Figure 6 It is a schematic diagram of the structure of the fan blade in the present invention;

[0030] Figure 7 It is a schematic diagram of a partial cross-sectional structure of the front side of the rectangular frame in the present invention;

[0031] Figure 8 The present invention Figure 7 Schematic diagram of the structure at B;

[0032] Fig. 9 It is a schematic diagram of the top view of the bottom column of the present invention.

[0033] In the figure: 1. Open runway pool;

[0034] 10. Adjustment mechanism; 11. Connecting seat; 12. Electric push rod; 13. Fixed plate; 14. Connecting plate; 15. Fixed cylinder; 16. Sliding cylinder; 17. Connecting rod; 18. Liquid outlet; 19. Rectangular frame; 20. Liquid outlet;

[0035] 30. Positioning assembly; 31. First electromagnet; 32. Second electromagnet;

[0036] 40. Sealing ring;

[0037] 50. Filter;

[0038] 60. Swinging mechanism; 61. Fixing rod; 62. Fan blade; 63. Connecting rope; 64. Connecting ball;

[0039] 70. material control mechanism; 71. elastic column; 72. air guide tube; 73. first cavity; 74. second cavity; 75. baffle; 76. through groove; 77. spring;

[0040] 78, sealing stirring assembly; 781, bellows; 782, connecting column; 783, bottom column; 784, stirring plate; 785, auxiliary plate; 786, through hole;

[0041] 79, limit assembly; 791, positioning groove; 792, protrusion;

[0042] 80. Impact block. DETAILED DESCRIPTION

[0043] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0044] like Figures 1 to 9 As shown, an algae preparation device for treating heavy metal-containing wastewater according to an embodiment of the present invention comprises an open runway pool 1, in which a pH meter is installed; an adjusting mechanism 10 is arranged on the open runway pool 1, and the adjusting mechanism 10 comprises a connecting seat 11 fixedly installed on the top of the open runway pool 1, in which an electric push rod 12 is fixedly installed, and a fixing plate 13 is fixedly installed on the output end of the electric push rod 12. Two symmetrically arranged fixed cylinders 15 are fixedly installed on the connecting seat 11, and the two fixed cylinders 15 are respectively filled with an acidic solution and an alkaline solution. A sliding cylinder 16 is arranged in the fixed cylinder 15, and a connecting rod 17 is slidably connected in the sliding cylinder 16. A connecting disk 14 is fixedly sleeved on the surface of the connecting rod 17, and the fixed disk 13 and the connecting disk 14 are fixedly connected. A positioning component 30 is arranged in the sliding cylinder 16, and a liquid outlet pipe 18 connected to the interior is fixedly installed at the bottom of the fixed cylinder 15, and a liquid inlet pipe connected to the interior and having a one-way valve is fixedly installed on one side of the fixed cylinder 15. A rectangular frame 19 is fixedly installed in the open runway pool 1, and a plurality of liquid outlets 20 are provided at the bottom of the rectangular frame 19. The end of the liquid outlet pipe 18 away from the fixed cylinder 15 is connected to the interior of the rectangular frame 19.

[0045] Specifically, the positioning assembly 30 includes a first electromagnet 31 fixedly mounted at the bottom of the connecting rod 17 and in the slide 16, and a second electromagnet 32 ​​fixedly mounted in the slide 16. A sealing ring 40 is fixedly mounted in the slide 16, and a filter screen 50 is fixedly mounted in each of the plurality of liquid outlets 20 of the rectangular frame 19.

[0046] During operation, when the open runway pool 1 is preparing algae and purifying heavy metals in wastewater, a pH meter (not shown in the figure) is used to monitor the pH value in the open runway pool 1. When the pH value in the open runway pool 1 is too high or too low, the corresponding acidic solution or alkaline solution in the two fixed cylinders 15 is released as needed. Since the operation of the two fixed cylinders 15 is the same, only one operation method is specifically introduced.

[0047] When it is necessary to add an acidic solution to the open track pool 1, the electric push rod 12 in the connecting seat 11 is started, and the output end of the electric push rod 12 moves downward with the fixed disk 13, the connecting disk 14 and the connecting rod 17. It should be noted that at this time, the first electromagnet 31 and the second electromagnet 32 ​​in the fixed cylinder 15 (i.e., the fixed cylinder 15 containing the acidic solution) are both energized, and like charges repel each other. At this time, the first electromagnet 31 and the second electromagnet 32 ​​in the other fixed cylinder 15 (i.e., the fixed cylinder 15 containing the alkaline solution) are not energized, so the connecting rod 17 in the fixed cylinder 15 containing the alkaline solution slides in the slide cylinder 16, while the connecting rod 17 in the fixed cylinder 15 containing the acidic solution slides downward with the slide cylinder 16. Since the surface of the slide cylinder 16 is provided with a sealing ring 40, the slide cylinder 16 is sealed and slidably connected in the fixed cylinder 15, and the acidic solution in the fixed cylinder 15 is squeezed into the rectangular frame 19 through the liquid outlet pipe 18, and the acidic solution is sprayed into the open runway pool 1 through the liquid outlet 20 and the filter screen 50 of the rectangular frame 19. The filter screen 50 can play the role of dispersing the solution. The surface of the slide cylinder 16 in the other fixed cylinder 15 (i.e., the one equipped with the alkaline solution) is also provided with a sealing ring 40, and there is a certain friction force between the sealing ring 40 and the fixed cylinder 15. In the absence of external interference, the slide cylinder 16 in the fixed cylinder 15 will not move, so the alkaline solution in the fixed cylinder 15 will not be squeezed into the rectangular frame 19. After squeezing the acidic solution in the fixed cylinder 15, the electric push rod 12 moves up, and moves up and resets with the connecting disk 14, the connecting rod 17 and the slide cylinder 16 through the fixed disk 13, and the acidic solution is replenished through the liquid inlet pipe after the reset is completed. On the contrary, when alkaline solution is needed, the first electromagnet 31 and the second electromagnet 32 ​​in the fixed cylinder 15 containing alkaline solution are energized, while the first electromagnet 31 and the second electromagnet 32 ​​in the fixed cylinder 15 containing acidic solution are not energized.

[0048] Through the two fixed cylinders 15 designed as above, the required acidic solution and alkaline solution can be stored in advance, and then the required dosage can be accurately delivered according to actual needs; at the same time, the fixed cylinder 15 has good sealing and safety, and can effectively prevent the leakage of acid and alkaline solutions during storage. Compared with the direct delivery of acid and alkaline solutions through pipelines, pipelines may leak due to corrosion, aging, loose joints, etc., while the fixed cylinder 15 (which can be a storage tank) is relatively easier to inspect and maintain, reducing the risk of acid and alkali leakage causing harm to the surrounding environment and personnel. At the same time, with the help of a pH meter to monitor the delivery of the required solution in real time, the pH value in the open runway pool 1 can be improved more efficiently, so that algae can purify heavy metals in wastewater more efficiently, improving the purification effect and efficiency.

[0049] A swing mechanism 60 is provided in the fixed cylinder 15, and the swing mechanism 60 includes two fixed rods 61 fixedly connected to the connecting rod 17, the fixed rods 61 pass through the slide cylinder 16 and are in the fixed cylinder 15, and the bottom of the fixed rods 61 is rotatably connected to the fan blade 62. A connecting rope 63 is fixedly installed at the bottom of the fan blade 62, and a connecting ball 64 is fixedly installed at the bottom of the connecting rope 63.

[0050] During operation, when the acid and alkaline solutions in the fixed cylinder 15 have been left unused for a long time, the acid and alkaline solutions need to be stirred before use. At this time, the first electromagnet 31 and the second electromagnet 32 ​​in the two fixed cylinders 15 are not energized, and the connecting rod 17 moves toward the fixed cylinder 15 where the solution is contained with the fan blade 62 through the fixed rod 61. The fan blade 62 rotates when it contacts the liquid and continues to move downward, and then rotates with the connecting rope 63 and the connecting ball 64, and the solution in the fixed cylinder 15 is stirred by the rotation of the fan blade 62, while the connecting rope 63 and the connecting ball 64 assist in stirring the solution.

[0051] The swing mechanism 60 designed as above can quickly stir the solution that has been standing for a long time, effectively preventing solution precipitation and solution stratification, thereby ensuring that the acidity, alkalinity and component ratio of each part of the solution are consistent, and ensuring the accuracy and stability of pH adjustment.

[0052] The fixed cylinder 15 is provided with a material control mechanism 70, which includes a plurality of hollow elastic columns 71 fixedly mounted on the top of the fixed cylinder 15, and a gas guide tube 72 connected to the inside is fixedly mounted on one side of the elastic column 71. A plurality of first cavities 73 and a plurality of second cavities 74 are provided in the rectangular frame 19, and the first cavities 73 and the second cavities 74 are symmetrically distributed about the central axis of the liquid outlet 20, and a single first cavity 73 and a single second cavity 74 form a group, and a sealing stirring assembly 78 is provided in each of the first cavity 73 and the second cavity 74, and a baffle 75 is sealingly and slidably connected in the first cavity 73 and the second cavity 74, and a through groove 76 is provided on the top of the baffle 75, and a spring 77 is fixedly mounted in the second cavity 74, and one end of the spring 77 is fixedly connected to the baffle 75, and one end of the gas guide tube 72 away from the elastic column 71 is connected to the inside of the first cavity 73. The sealing stirring assembly 78 includes two bellows 781 , and rubber rings are installed in the first cavity 73 and the second cavity 74 to assist the bellows 781 in sealing.

[0053] Specifically, the sealing stirring assembly 78 also includes two connecting columns 782 fixedly installed at the bottom of the baffle 75, a bottom column 783 is fixedly installed at the bottom of the connecting column 782, a plurality of stirring plates 784 are fixedly installed on the surface of the bottom column 783, and an auxiliary plate 785 is fixedly installed on the surface of the stirring plate 784. One end of the bellows 781 is fixedly connected to the rectangular frame 19, and the other end of the bellows 781 is fixedly connected to the connecting column 782. The stirring plate 784 and the auxiliary plate 785 are both arc-shaped, and a plurality of through holes 786 are provided on one side of the stirring plate 784 and the auxiliary plate 785. A limiting assembly 79 is provided on the baffle 75, and the limiting assembly 79 includes an arc-shaped positioning groove 791 provided on the top of the baffle 75, and a rubber protrusion 792 is fixedly installed in the first cavity 73. The bottom of the baffle 75 is rotatably connected to a plurality of impact blocks 80 through a torsion spring, and the impact block 80 is arc-shaped and the bottom is in contact with the filter screen 50.

[0054] During operation, when the acid solution in the fixed cylinder 15 is squeezed into the rectangular frame 19, the baffle 75 will block the liquid outlet 20, thereby preventing the acid solution from flowing directly to the open runway pool 1 through the liquid outlet 20. When most of the solution in the fixed cylinder 15 is squeezed into the rectangular frame 19, there is also acid solution at the liquid outlet 20 at one end of the rectangular frame 19 away from the liquid outlet pipe 18, and the connecting rod 17 continues to move, and drives the connecting plate 14 to squeeze the elastic column 71 on the fixed cylinder 15, so that the gas in the plurality of elastic columns 71 enters the corresponding second cavity 74 through the plurality of air guide tubes 72. After entering the second cavity 74, the gas will push the baffle 75 to move toward the liquid outlet 20, and the spring 77 will move with the baffle 75, so that the through groove 76 of the baffle 75 overlaps with the liquid outlet 20, thereby allowing the acid solution in the rectangular frame 19 to flow into the rectangular frame 19 through the through groove 76 and the liquid outlet 20. Through the designed structure of the baffle 75 and the elastic column 71, the acidic solution will first flow into the rectangular frame 19 and will not be directly discharged. This design allows the open runway pool 1 to be quickly replenished with the required acidic solution away from the liquid outlet pipe 18, thereby achieving uniform and rapid discharge of the acidic solution, and also improving the accuracy of subsequent pH meter testing.

[0055] When the cover plate moves, it will bring the impact block 80 to continuously impact the surface of the filter 50, causing the filter 50 to vibrate, thereby effectively preventing the filter 50 from being blocked by impurities when not in use. When the baffle 75 moves, it will bring the bellows 781, the connecting column 782, the bottom column 783, the stirring plate 784 and the auxiliary plate 785 to move together. The bellows 781 plays a role in assisting the closure of the first cavity 73 and the second cavity 74, so that the gas in the elastic column 71 can be filled into the second cavity 74 to push the baffle 75 to move. The movement of the stirring plate 784 and the auxiliary plate 785 is to stir the wastewater in the open runway pool 1 and the inflowing acidic solution, so that the acidic solution can quickly mix with the water in the open runway pool 1 and adjust the pH value in the open runway pool 1. The stirring plate 784 and the auxiliary plate 785 are designed to be arc-shaped for better stirring, and the opening of a number of through holes 786 is to facilitate the flow and mixing of liquids.

[0056] When the baffle 75 moves into the first cavity 73, it will be fixed with the protrusion 792 in the first cavity 73 by using the positioning groove 791 on the surface. When the connecting rod 17, the connecting plate 14 and the slide cylinder 16 slide upward to reset, the elastic column 71 will slowly restore its shape and absorb the gas without being squeezed. However, the baffle 75 will not reset immediately due to the restriction of the protrusion 792, so that it is convenient for the gas to enter the fixed cylinder 15 through the liquid outlet 20 and the liquid outlet pipe 18, and it is convenient for the subsequent acidic solution to enter the fixed cylinder 15. It should be noted that the protrusion 792 only delays the reset of the baffle 75. The baffle 75 will eventually slide and reset under the action of the spring 77 and the elastic column 71, thereby closing the liquid outlet 20.

[0057] Working principle: When the open runway pool 1 is preparing algae and purifying heavy metals in wastewater, the pH value in the open runway pool 1 is monitored by a pH meter. When the pH value in the open runway pool 1 is too high or too low, the corresponding acidic solution or alkaline solution in the two fixed cylinders 15 is released as needed.

[0058] When it is necessary to add an acidic solution to the open - type runway pool 1, by starting the electric push rod 12 in the connecting seat 11, the output end of the electric push rod 12 drives the fixed disk 13, the connecting disk 14 and the connecting rod 17 to move downward together. It should be noted that at this time, the first electromagnet 31 and the second electromagnet 32 in the fixed cylinder 15 are both energized, and like - poles repel each other. At this time, the first electromagnet 31 and the second electromagnet 32 in the other fixed cylinder 15 are not energized. Therefore, the connecting rod 17 in the fixed cylinder 15 containing the alkaline solution slides in the sliding cylinder 16, while the connecting rod 17 in the fixed cylinder 15 containing the acidic solution drives the sliding cylinder 16 to slide downward together. Since the sealing ring 40 is installed on the surface of the sliding cylinder 16, the sliding cylinder 16 is in sealed sliding connection in the fixed cylinder 15, and squeezes the acidic solution in the fixed cylinder 15 to enter the rectangular frame 19 through the liquid outlet pipe 18. The acidic solution is sprayed into the open - type runway pool 1 through the liquid outlet 20 of the rectangular frame 19 and the filter screen 50. The filter screen 50 can play a role in dispersing the solution. The sealing ring 40 is also installed on the surface of the sliding cylinder 16 in the other fixed cylinder 15. There is a certain frictional force between the sealing ring 40 and the fixed cylinder 15. Without external interference, the sliding cylinder 16 in this fixed cylinder 15 will not move. Therefore, the alkaline solution in this fixed cylinder 15 will not be squeezed into the rectangular frame 19. After the extrusion of the acidic solution in the fixed cylinder 15 is completed, the electric push rod 12 moves upward, and drives the connecting disk 14, the connecting rod 17 and the sliding cylinder 16 to move upward and reset together. After the reset is completed, the acidic solution is replenished through the liquid inlet pipe. Conversely, when it is necessary to use the alkaline solution, the first electromagnet 31 and the second electromagnet 32 in the fixed cylinder 15 containing the alkaline solution are energized, while the first electromagnet 31 and the second electromagnet 32 in the fixed cylinder 15 containing the acidic solution are not energized.

[0059] When the acidic and alkaline solutions in the fixed cylinder 15 have not been used for a long time and need to be stirred before use. At this time, the first electromagnet 31 and the second electromagnet 32 in both fixed cylinders 15 are not energized. The connecting rod 17 drives the fan blade 62 to move together towards the part of the fixed cylinder 15 where the solution is located through the fixed rod 61. When the fan blade 62 contacts the liquid and continues to move downward, it will rotate, and then drive the connecting rope 63 and the connecting ball 64 to rotate together, using the rotation of the fan blade 62 to stir the solution in the fixed cylinder 15, and at the same time cooperating with the connecting rope 63 and the connecting ball 64 to assist in stirring the solution.

[0060] When the acid solution in the fixed cylinder 15 is squeezed into the rectangular frame 19, the baffle 75 will block the liquid outlet 20, thereby preventing the acid solution from flowing directly to the open runway pool 1 through the liquid outlet 20. When most of the solution in the fixed cylinder 15 is squeezed into the rectangular frame 19, there is also acid solution at the liquid outlet 20 at one end of the rectangular frame 19 away from the liquid outlet pipe 18, and the connecting rod 17 continues to move, and drives the connecting plate 14 to squeeze the elastic column 71 on the fixed cylinder 15, so that the gas in the plurality of elastic columns 71 enters the corresponding second cavity 74 through the plurality of air guide tubes 72. After entering the second cavity 74, the gas will push the baffle 75 to move toward the liquid outlet 20, and the spring 77 will move with the baffle 75, so that the through groove 76 of the baffle 75 overlaps with the liquid outlet 20, thereby allowing the acid solution in the rectangular frame 19 to flow into the rectangular frame 19 through the through groove 76 and the liquid outlet 20. When the cover plate moves, it will bring the impact block 80 to continuously impact the surface of the filter screen 50, causing the filter screen 50 to vibrate. When the baffle plate 75 moves, it will bring the bellows 781, the connecting column 782, the bottom column 783, the stirring plate 784 and the auxiliary plate 785 to move together. The movement of the stirring plate 784 and the auxiliary plate 785 stirs the wastewater in the open runway pool 1 and the inflowing acidic solution, so that the acidic solution can quickly mix with the water in the open runway pool 1 to adjust the pH value in the open runway pool 1. When the baffle plate 75 moves into the first cavity 73, it will use the positioning groove 791 on the surface to clamp and fix with the protrusion 792 in the first cavity 73. When the connecting rod 17, the connecting plate 14 and the slide 16 slide upward to reset, the elastic column 71 is no longer squeezed and will slowly restore its shape and absorb the gas back.

[0061] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0063] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An algae preparation device for treating heavy metal-containing wastewater, comprising an open raceway pool (1), wherein a pH meter is installed in the open raceway pool (1); characterized in that: The open track pool (1) is provided with an adjustment mechanism (10), the adjustment mechanism (10) comprising a connection seat (11) fixedly mounted on the top of the open track pool (1), an electric push rod (12) fixedly mounted in the connection seat (11), and a fixed plate (13) fixedly mounted on the output end of the electric push rod (12); Two symmetrically arranged fixed cylinders (15) are fixedly mounted on the connecting seat (11), and the two fixed cylinders (15) are respectively filled with an acid solution and an alkaline solution. A sliding cylinder (16) is arranged in the fixed cylinder (15), and a connecting rod (17) is slidably connected in the sliding cylinder (16). A connecting disk (14) is fixedly sleeved on the surface of the connecting rod (17). The fixed disk (13) and the connecting disk (14) are fixedly connected. A fixed cylinder (16) is arranged in the sliding cylinder (16). The fixed cylinder (15) is provided with a liquid outlet pipe (18) connected to the interior, and a liquid inlet pipe connected to the interior and provided with a one-way valve is fixedly installed on one side of the fixed cylinder (15). A rectangular frame (19) is fixedly installed in the open runway pool (1). A plurality of liquid outlets (20) are provided at the bottom of the rectangular frame (19). One end of the liquid outlet pipe (18) away from the fixed cylinder (15) is connected to the interior of the rectangular frame (19). The positioning assembly (30) comprises a first electromagnet (31) fixedly mounted on the bottom of the connecting rod (17) and located in the slide cylinder (16), and a second electromagnet (32) is fixedly mounted in the slide cylinder (16).

2. The algae preparation device for treating heavy metal-containing wastewater according to claim 1, characterized in that: A sealing ring (40) is fixedly installed inside the slide cylinder (16), and filter screens (50) are fixedly installed inside the plurality of liquid outlets (20) of the rectangular frame (19).

3. The algae preparation device for treating heavy metal-containing wastewater according to claim 1, characterized in that: A swing mechanism (60) is arranged in the fixed cylinder (15), and the swing mechanism (60) comprises two fixed rods (61) fixedly connected to the connecting rod (17). The fixed rods (61) pass through the sliding cylinder (16) and are located in the fixed cylinder (15). The bottom of the fixed rods (61) is rotatably connected to the fan blades (62).

4. The algae preparation device for treating heavy metal-containing wastewater according to claim 3, characterized in that: A connecting rope (63) is fixedly mounted on the bottom of the fan blade (62), and a connecting ball (64) is fixedly mounted on the bottom of the connecting rope (63).

5. The algae preparation device for treating heavy metal-containing wastewater according to claim 1, characterized in that: The fixed cylinder (15) is provided with a material control mechanism (70), the material control mechanism (70) comprising a plurality of hollow elastic columns (71) fixedly mounted on the top of the fixed cylinder (15), and an air guide tube (72) connected to the inside is fixedly mounted on one side of the elastic column (71); A plurality of first cavities (73) and a plurality of second cavities (74) are provided in the rectangular frame (19); the first cavities (73) and the second cavities (74) are symmetrically distributed about the central axis of the liquid outlet (20); a single first cavity (73) and a single second cavity (74) form a group; a sealing stirring assembly (78) is provided in each of the first cavity (73) and the second cavity (74); a baffle (75) is sealingly and slidably connected in the first cavity (73) and the second cavity (74); a through groove (76) penetrating the baffle (75) is provided at the top of the baffle; a spring (77) is fixedly installed in the second cavity (74); one end of the spring (77) is fixedly connected to the baffle (75); and one end of the air guide tube (72) away from the elastic column (71) is connected to the interior of the first cavity (73).

6. The algae preparation device for treating heavy metal-containing wastewater according to claim 5, characterized in that: The sealing stirring assembly (78) comprises two bellows (781), and rubber rings are installed in the first cavity (73) and the second cavity (74) to assist the bellows (781) in sealing.

7. The algae preparation device for treating heavy metal-containing wastewater according to claim 6, characterized in that: The sealing stirring assembly (78) further comprises two connecting columns (782) fixedly mounted on the bottom of the baffle (75), a bottom column (783) fixedly mounted on the bottom of the connecting column (782), a plurality of stirring plates (784) fixedly mounted on the surface of the bottom column (783), and an auxiliary plate (785) fixedly mounted on the surface of the stirring plate (784); One end of the bellows (781) is fixedly connected to the rectangular frame (19), and the other end of the bellows (781) is fixedly connected to the connecting column (782).

8. The algae preparation device for treating heavy metal-containing wastewater according to claim 7, characterized in that: The stirring plate (784) and the auxiliary plate (785) are both arc-shaped, and one side of the stirring plate (784) and the auxiliary plate (785) is provided with a plurality of through holes (786) penetrating through the stirring plate (784) and the auxiliary plate (785).

9. The algae preparation device for treating heavy metal-containing wastewater according to claim 5, characterized in that: A limit assembly (79) is provided on the baffle (75), and the limit assembly (79) comprises an arc-shaped positioning groove (791) opened on the top of the baffle (75), and a protrusion (792) made of rubber material is fixedly installed in the first cavity (73).

10. The algae preparation device for treating heavy metal-containing wastewater according to claim 5, characterized in that: The bottom of the baffle (75) is rotatably connected to a plurality of impact blocks (80) via a torsion spring. The impact blocks (80) are arc-shaped and the bottoms thereof are in contact with the filter screen (50).

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