Heavy metal industrial wastewater treatment system

Abstract

The present application provides a heavy metal industrial wastewater treatment system, in which multiple aeration mechanisms are installed on the tank body and are arranged at intervals; the aeration mechanism includes two lifting assemblies, a crossbeam, an air inlet pipe and multiple air inlet parts, the two lifting assemblies are installed on the tank body and are respectively located on both sides of the tank body, the crossbeam is installed between the output ends of the two lifting assemblies, and moves along the first direction under the drive of the two lifting assemblies and is located in the tank body, the air inlet pipe is arranged in the tank body and is located between the two ends of the crossbeam, and multiple air inlet parts are installed on the air inlet pipe and are evenly arranged along the extension direction of the air inlet pipe. Among them, the air inlet parts include multiple aerators. The reaction tank is connected to the tank body. The regulating tank is connected to the reaction tank. The sedimentation tank is connected to the regulating tank. The filtration tank is connected to the sedimentation tank. The heavy metal industrial wastewater treatment system provided by the present application can evenly aerate the heavy metal industrial wastewater from different directions during treatment, so that grease and wastewater are fully separated.

Description

Technical Field

[0001] The present application relates to the technical field of wastewater treatment, and in particular to a heavy metal industrial wastewater treatment system. Background Art

[0002] Heavy metal industrial wastewater refers to wastewater generated during industrial production processes that contains high concentrations of heavy metal ions (such as lead, mercury, cadmium, chromium, copper, and zinc). In particular, heavy metal industrial wastewater generated in industries such as electroplating, metal processing, and food processing often contains large amounts of grease and grease scum. The presence of grease and grease scum can hinder subsequent treatment of heavy metal industrial wastewater. Therefore, aeration is often used to treat heavy metal industrial wastewater to float the grease and grease scum to the surface of the water. However, existing aeration equipment often fails to completely separate grease from heavy metal industrial wastewater. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide a heavy metal industrial wastewater treatment system to solve the technical problem of incomplete separation of grease and heavy metal industrial wastewater in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is to provide a heavy metal industrial wastewater treatment system, comprising:

[0005] Pool body;

[0006] a plurality of aeration mechanisms, each of which is mounted on the tank body and spaced apart; the aeration mechanism comprises two lifting assemblies, a crossbeam, an air intake pipe, a plurality of air intake members, two hinged air intake assemblies and a first drive assembly; the two lifting assemblies are each mounted on the tank body and are respectively located on both sides of the tank body; the crossbeam is mounted between the output ends of the two lifting assemblies and moves in a first direction driven by the two lifting assemblies and is located within the tank body; the air intake pipe is disposed within the tank body and is located between the two ends of the crossbeam; a plurality of air intake members are each mounted on the air intake pipe and are evenly arranged along the extension direction of the air intake pipe; the two hinged air intake assemblies are respectively located at the two ends of the air intake pipe and are mounted between the air intake pipe and the crossbeam; the first drive assembly is mounted on the crossbeam and is configured to drive the air intake pipe to swing about a second direction;

[0007] Wherein, the air inlet member includes a plurality of aerators;

[0008] a reaction tank, connected to the tank body and configured to react with heavy metal ions by adding a reagent;

[0009] a regulating tank, connected to the reaction tank and configured to adjust the pH value of heavy metal industrial wastewater;

[0010] a sedimentation tank, connected to the regulating tank and configured to form sedimentation by adding a flocculant;

[0011] The filtering tank is connected to the sedimentation tank and is configured to filter the sediment in the heavy metal industrial wastewater.

[0012] Optionally, the aeration mechanism further includes a second drive assembly, which is mounted on the crossbeam and configured to drive the air inlet pipe to swing in a second direction.

[0013] Optionally, the articulated air intake assembly includes a connecting pipe, a telescopic hose and a hinge, the connecting pipe is installed on the crossbeam, the telescopic hose is installed between the air intake pipe and the connecting pipe, and the hinge is installed between the connecting pipe and the air intake pipe and is used to suspend the air intake pipe on the connecting pipe.

[0014] Optionally, the air intake pipe includes an air intake channel and two air intake flanges, and the two air intake flanges are respectively connected to both ends of the air intake channel;

[0015] The connecting pipe includes a connecting channel and two connecting flanges, and the two connecting flanges are respectively connected to the two ends of the connecting channel;

[0016] The telescopic hose includes a telescopic channel and two telescopic flanges, wherein the two telescopic flanges are respectively connected to both ends of the telescopic channel;

[0017] The hinged member includes two first hinged structures and two second hinged structures. The two first hinged structures are installed at one end of the connecting flange facing away from the telescopic hose. The two second hinged structures are installed at one end of the air inlet flange facing away from the telescopic hose and are respectively hinged to the two first hinged structures.

[0018] Optionally, the first hinge structure includes a first semicircular flange and a first hinge plate, wherein the first semicircular flange is mounted on an end of the connecting flange facing away from the telescopic hose, and the first hinge plate is connected to the first semicircular flange and bent relative to the first semicircular flange;

[0019] The second hinge structure includes a second semicircular flange and a second hinge plate. The second semicircular flange is installed on the end of the air inlet flange facing away from the telescopic hose. The second hinge plate is connected to the second semicircular flange, bent relative to the second semicircular flange, and hinged to the second hinge plate.

[0020] Optionally, the first driving assembly includes a first mounting frame, a first driver, a first fixing ring, and a first rope, wherein the first mounting frame is mounted on the crossbeam, the first driver is mounted on the first mounting frame, the first fixing ring is sleeved on the air intake pipe, and the first rope is mounted between the first driver and the first fixing ring, and is configured to drive the air intake pipe to swing clockwise around the second direction through the first driver;

[0021] The second drive assembly includes a second mounting frame, a second driver, a second fixing ring and a second rope. The second mounting frame is mounted on the crossbeam, the second driver is mounted on the second mounting frame, the second fixing ring is sleeved on the air intake pipe, and the second rope is installed between the second driver and the second fixing ring, and is configured to drive the air intake pipe to swing counterclockwise in the second direction through the second driver.

[0022] Optionally, the first driving assembly further comprises a first tensioning frame, the first tensioning frame being mounted on the crossbeam and being used to tension the first rope;

[0023] The second driving assembly further includes a second tensioning frame, which is mounted on the crossbeam and is used to tension the second rope.

[0024] Optionally, the lifting assembly includes a lifting frame, a lifting drive, a lifting plate and a lifting rope, the lifting frame is installed on the pool body, the lifting drive is installed on the lifting frame, the lifting plate is installed on one end of the beam, the lifting rope is installed between the lifting drive and the lifting plate, and is configured to drive the beam to move along the first direction through the lifting drive.

[0025] Optionally, the lifting assembly further comprises a lifting tensioning frame, which is mounted on the lifting frame and is used to tension the lifting rope.

[0026] Optionally, the lifting assembly further includes two guide steel columns, both of which are installed on the pool body and respectively pass through the two ends of the beam.

[0027] The beneficial effects of the heavy metal industrial wastewater treatment system provided by this application are:

[0028] The heavy metal industrial wastewater treatment system provided herein utilizes multiple aerators evenly arranged around the periphery of the inlet pipe during treatment. These aerators can evenly aerate the heavy metal industrial wastewater from different directions, effectively separating grease from the wastewater. Furthermore, the aeration process can intensify the collision of impurities in the wastewater, facilitating the shedding of grease from the impurity surfaces, thus facilitating effective grease separation.

[0029] During use, the two lifting assemblies can drive the aeration mechanism to move in a first direction based on the liquid level of heavy metal industrial wastewater within the tank, thereby adjusting the aeration mechanism's position within the tank. This allows the aeration mechanism to adapt to different liquid level conditions, broadening its applicability. Furthermore, when performing maintenance on the aeration mechanism, the two lifting assemblies can be used to locate the corresponding aeration mechanism. Compared to related technologies, this eliminates the need to drain the wastewater from the tank, enabling maintenance without downtime, significantly improving ease of use.

[0030] With the cooperation of reaction tank, regulating tank, sedimentation tank and filtration tank, heavy metal ions in heavy metal industrial wastewater can be effectively removed with good treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] Figure 1 A schematic diagram of a heavy metal industrial wastewater treatment system provided in an embodiment of the present application;

[0033] Figure 2 A three-dimensional diagram of a heavy metal industrial wastewater treatment system provided in an embodiment of the present application;

[0034] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0035] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0036] Figure 5 for Figure 2 A partial enlarged view of point C in the middle.

[0037] Among them, the reference numerals in the figures are:

[0038] 1. Pool body;

[0039] 2. Aeration mechanism; 21. Lifting assembly; 211. Lifting frame; 212. Lifting drive; 213. Lifting plate; 214. Lifting rope; 215. Lifting tensioning frame; 216. Guide steel column; 22. Crossbeam; 23. Inlet pipe; 231. Inlet channel; 232. Inlet flange; 24. Aerator; 25. Articulated inlet assembly; 251. Connecting pipe; 2511. Connecting channel; 2512. Connecting flange; 252. Telescopic hose; 2521. Telescopic channel; 2522. Telescopic flange; 253. Hinge; 2531. A hinge structure; 25311, a first semicircular flange; 25312, a first hinge plate; 2532, a second hinge structure; 25321, a second semicircular flange; 25322, a second hinge plate; 26, a first drive assembly; 261, a first mounting bracket; 262, a first driver; 263, a first fixing ring; 264, a first rope; 265, a first tensioning frame; 27, a second drive assembly; 271, a second mounting bracket; 272, a second driver; 273, a second fixing ring; 274, a second rope; 275, a second tensioning frame;

[0040] 3. Reaction pool;

[0041] 4. Regulating tank;

[0042] 5. Sedimentation tank;

[0043] 6. Filter pool. DETAILED DESCRIPTION

[0044] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0045] It should be noted that when an element is referred to as being “mounted on,” “fixed on,” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0046] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0048] In this application, the term "and / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0049] like Figures 1 to 5 As shown, the present application provides a heavy metal industrial wastewater treatment system, comprising a tank body 1, multiple aeration mechanisms 2, a reaction tank 3, a regulating tank 4, a sedimentation tank 5 and a filtration tank 6. The multiple aeration mechanisms 2 are all installed in the tank body 1 and are arranged at intervals. The aeration mechanism 2 includes two lifting assemblies 21, a crossbeam 22, an air inlet pipe 23, multiple air inlet components, two hinged air inlet assemblies 25, and a first drive assembly 26. The two lifting assemblies 21 are mounted on the tank body 1 and are located on either side of the tank body 1. The crossbeam 22 is mounted between the output ends of the two lifting assemblies 21 and is driven by the two lifting assemblies 21 to move in a first direction and is located within the tank body 1. The air inlet pipe 23 is disposed within the tank body 1 and is located between the two ends of the crossbeam 22. Multiple air inlet components are mounted on the air inlet pipe 23 and are evenly arranged along the extension direction of the air inlet pipe 23. The two hinged air inlet assemblies 25 are located at the two ends of the air inlet pipe 23 and are mounted between the air inlet pipe 23 and the crossbeam 22. The first drive assembly 26 is mounted on the crossbeam 22 and is configured to drive the air inlet pipe 23 to swing in a second direction. The air inlet components include multiple aerators 24. Reaction tank 3 is connected to tank body 1 and is configured to react with heavy metal ions by adding a reagent. Regulating tank 4 is connected to reaction tank 3 and is configured to adjust the pH value of heavy metal industrial wastewater. Sedimentation tank 5 is connected to regulating tank 4 and is configured to form a precipitate by adding a flocculant. Filter tank 6 is connected to sedimentation tank 5 and is configured to filter the precipitate from heavy metal industrial wastewater.

[0050] It should be noted that the first direction above and below refers to the depth direction of the pool body 1. Figure 2 The second direction above and below refers to the bidirectional direction of the shortest line between the two sides of the cell body 1, specifically as Figure 2 The Y-axis shown in .

[0051] It should be noted that in this embodiment, the number of aeration mechanisms 2 is set to three as an example. Of course, in other embodiments, the number of aeration mechanisms 2 can also be set to two, four, five, etc. according to actual application requirements, and this is not limited here.

[0052] It should also be noted that in this embodiment, the number of air inlet members is set to three for illustration. Of course, in other embodiments, the aeration mechanism 2 can be set to two, four, five, or other numbers, depending on actual application requirements, and this is not a single limitation here. In this embodiment, the number of aerators 24 is set to four for illustration. Of course, in other embodiments, the number of aerators 24 can be set to two, three, five, or other numbers, depending on actual application requirements, and this is not a single limitation here.

[0053] The heavy metal industrial wastewater treatment system provided herein utilizes multiple aerators 24 evenly arranged around the periphery of an air inlet pipe 23 to treat the heavy metal industrial wastewater. These aerators 24 provide uniform aeration of the heavy metal industrial wastewater from different directions, effectively separating grease from the wastewater. Furthermore, the aeration process intensifies the collision of impurities in the wastewater, facilitating the shedding of grease from the impurity surfaces and thus facilitating effective grease separation.

[0054] During use, the two lifting assemblies 21 can be used to drive the aeration mechanism 2 to move in a first direction according to the liquid level of the heavy metal industrial wastewater in the tank body 1, thereby changing the position of the aeration mechanism 2 within the tank body 1. This allows the aeration mechanism 2 to adapt to different liquid level conditions and has a wide range of applications. Furthermore, when performing maintenance on the aeration mechanism 2, the two lifting assemblies 21 can be used to maintain the corresponding aeration mechanism 2. Compared to related technologies, this eliminates the need to drain the wastewater in the tank body 1, allowing maintenance to be performed without stopping the tank body 1, greatly improving ease of use.

[0055] Two hinged air intake assemblies 25 ensure normal air intake in the air intake pipe 23 while allowing it to swing relative to the crossbeam 22. As the air intake pipe 23 swings, the multiple air intake components, or aerators 24, can follow the swing of the air intake pipe 23. Compared to related technologies, this helps increase the aeration range of the aerators 24, thereby achieving a more thorough and effective separation of grease and wastewater. The first drive assembly 26 drives the air intake pipe 23 to swing clockwise in the second direction, which helps increase the aeration range of the aerators 24 and facilitates use.

[0056] With the cooperation of the reaction tank 3, the regulating tank 4, the sedimentation tank 5 and the filtration tank 6, the heavy metal ions in the heavy metal industrial wastewater can be effectively removed with good treatment effect. Optionally, both ends of the air inlet pipe 23 are connected to an external air compressor.

[0057] Optionally, a partition (not shown in the figures) is installed in the air intake pipe 23.

[0058] With such an arrangement, the partition can avoid turbulence in the air intake of the two external air compressors, thereby preventing damage to the external air compressors.

[0059] In one embodiment of the present application, see Figures 1 to 5 The aeration mechanism 2 further includes a second driving assembly 27 , which is mounted on the crossbeam 22 and configured to drive the air inlet pipe 23 to swing in a second direction.

[0060] This arrangement, through the two hinged air intake assemblies 25, ensures that the air intake pipe 23 can swing relative to the crossbeam 22 while ensuring normal air intake. Under the swinging action of the air intake pipe 23, the multiple air intake components, that is, the multiple aerators 24, can swing with the air intake pipe 23. Compared with the related art, this helps to increase the aeration range of the aerators 24, thereby achieving more thorough separation of grease and wastewater and better separation effect.

[0061] The first drive assembly 26 drives the air intake pipe 23 to swing clockwise in the second direction. The second drive assembly 27 drives the air intake pipe 23 to swing counterclockwise in the second direction. The cooperation between the first and second drive assemblies 26, 27 allows the air intake pipe 23 to swing bidirectionally in the second direction, with a wide swing range. This helps increase the aeration range of the aerator 24 and provides ease of use.

[0062] In one embodiment of this application, please refer to Figures 1 to 5 The articulated air intake assembly 25 includes a connecting pipe 251, a telescopic hose 252 and a hinge 253. The connecting pipe 251 is installed on the crossbeam 22, the telescopic hose 252 is installed between the air intake pipe 23 and the connecting pipe 251, and the hinge 253 is installed between the connecting pipe 251 and the air intake pipe 23, and is used to suspend the air intake pipe 23 on the connecting pipe 251.

[0063] This arrangement allows the telescopic hose 252 and the air inlet pipe 23 to be connected to the external air compressor via the connecting pipe 251 , and facilitates the installation of the hinge 253 .

[0064] When the intake pipe 23 swings relative to the crossbeam 22, the telescopic hose 252 prevents interference between the connecting pipe 251 and the intake pipe 23, preventing the intake pipe 23 from swinging, and ensures normal delivery of compressed gas into the intake pipe 23. Furthermore, when the intake pipe 23 swings relative to the crossbeam 22, the hinge 253 ensures normal swinging of the intake pipe 23 while also suspending the intake pipe 23 from the connecting pipe 251, preventing damage to the telescopic hose 252 caused by the intake pipe 23 being directly suspended from the telescopic hose 252. Furthermore, the hinge 253 helps improve the structural stability of the connection between the connecting pipe 251 and the intake pipe 23 when the intake pipe 23 swings relative to the crossbeam 22.

[0065] In one embodiment of the present application, see Figures 1 to 5 The air intake pipe 23 includes an air intake channel 231 and two air intake flanges 232 . The two air intake flanges 232 are respectively connected to the two ends of the air intake channel 231 .

[0066] The connecting pipe 251 includes a connecting channel 2511 and two connecting flanges 2512 . The two connecting flanges 2512 are respectively connected to both ends of the connecting channel 2511 .

[0067] The telescopic hose 252 includes a telescopic channel 2521 and two telescopic flanges 2522 . The two telescopic flanges 2522 are respectively connected to two ends of the telescopic channel 2521 .

[0068] The hinged member 253 includes two first hinged structures 2531 and two second hinged structures 2532. The two first hinged structures 2531 are both installed on the end of the connecting flange 2512 facing away from the telescopic hose 252. The two second hinged structures 2532 are both installed on the end of the air inlet flange 232 facing away from the telescopic hose 252, and are respectively hinged to the two first hinged structures 2531.

[0069] With this arrangement, the air intake flange 232 and the telescopic flange 2522 enable the air intake channel 231 and the telescopic channel 2521 to be detachably connected via external bolts, making disassembly and assembly easy and enhancing ease of use. Furthermore, the air intake flange 232 and the telescopic flange 2522 enhance the structural stability between the air intake channel 231 and the telescopic channel 2521, preventing them from becoming loose and providing a good seal to prevent gas leakage.

[0070] Connecting flange 2512 and telescopic flange 2522 enable a detachable connection between connecting channel 2511 and telescopic channel 2521 via external bolts, making disassembly and assembly easy and enhancing ease of use. Furthermore, connecting flange 2512 and telescopic flange 2522 enhance the structural stability between connecting channel 2511 and telescopic channel 2521, preventing them from becoming loose and providing a good seal to prevent gas leakage.

[0071] Compared with the two first hinge structures 2531 and the two second hinge structures 2532 being integrally formed, the two first hinge structures 2531 and the two second hinge structures 2532 are integrally formed, so the installation difficulty is reduced, the disassembly and installation are convenient, and the connection is stable.

[0072] In one embodiment of the present application, see Figures 1 to 5 The first hinge structure 2531 includes a first semicircular flange 25311 and a first hinge plate 25312. The first semicircular flange 25311 is installed on the end of the connecting flange 2512 facing away from the telescopic hose 252. The first hinge plate 25312 is connected to the first semicircular flange 25311 and is bent relative to the first semicircular flange 25311.

[0073] The second hinged structure 2532 includes a second semicircular flange 25321 and a second hinged plate 25322. The second semicircular flange 25321 is installed on the end of the air inlet flange 232 facing away from the telescopic hose 252. The second hinged plate 25322 is connected to the second semicircular flange 25321, and is bent relative to the second semicircular flange 25321 and hinged to the second hinged plate 25322.

[0074] With this arrangement, when installing hinge 253, the two first semicircular flanges 25311 are attached to the side of connecting flange 2512 facing away from telescopic hose 252. The two first semicircular flanges 25311 can be combined to form a complete circular flange. The two second semicircular flanges 25321 are attached to the side of inlet flange 232 facing away from telescopic hose 252. These two second semicircular flanges 25321 can be combined to form a complete circular flange, significantly reducing installation difficulty and ensuring a stable connection.

[0075] Under the action of the two first hinge plates 25312 and the two second hinge plates 25322 , the air intake pipe 23 can swing relative to the connecting pipe 251 .

[0076] Under the action of the two first semicircular flanges 25311 and the two second semicircular flanges 25321, a limit can be formed with the connecting flange 2512 and the air intake flange 232, so that the air intake pipe 23 can be suspended on the connecting pipe 251, which helps to improve the structural stability between the air intake pipe 23 and the connecting pipe 251.

[0077] In one embodiment of this application, please refer to Figures 1 to 5 The first driving assembly 26 includes a first mounting frame 261, a first driver 262, a first fixing ring 263 and a first rope 264. The first mounting frame 261 is installed on the crossbeam 22, the first driver 262 is installed on the first mounting frame 261, the first fixing ring 263 is sleeved on the air intake pipe 23, and the first rope 264 is installed between the first driver 262 and the first fixing ring 263, and is configured to drive the air intake pipe 23 to swing clockwise around the second direction through the first driver 262.

[0078] With such a configuration, compared with the first driver 262 being directly installed on the beam 22, the first mounting bracket 261 can increase the distance between the first driver 262 and the wastewater, thereby preventing wastewater from splashing onto the first driver 262 and causing damage to the first driver 262, thereby effectively protecting the first driver 262.

[0079] Under the action of the first driver 262 , the first rope 264 can pull the first fixing ring 263 , so that the air inlet pipe 23 swings clockwise around the second direction, thereby helping to increase the aeration range of the aerator 24 .

[0080] The second drive assembly 27 includes a second mounting frame 271, a second driver 272, a second fixing ring 273 and a second rope 274. The second mounting frame 271 is installed on the crossbeam 22, the second driver 272 is installed on the second mounting frame 271, the second fixing ring 273 is sleeved on the air intake pipe 23, and the second rope 274 is installed between the second driver 272 and the second fixing ring 273, and is configured to drive the air intake pipe 23 to swing counterclockwise in the second direction through the second driver 272.

[0081] With such a configuration, the second mounting bracket 271 can increase the distance between the second driver 272 and the wastewater compared to directly installing the second driver 272 on the beam 22, thereby preventing wastewater from splashing onto the second driver 272 and causing damage to the second driver 272, thereby effectively protecting the second driver 272.

[0082] Under the action of the second driver 272 , the second rope 274 can pull the second fixing ring 273 , so that the air inlet pipe 23 swings counterclockwise around the second direction, thereby helping to further improve the aeration range of the aerator 24 .

[0083] Optionally, the first driver 262 and the second driver 272 are both configured as winches.

[0084] In one embodiment of the present application, see Figures 1 to 5 The first driving assembly 26 further includes a first tensioning frame 265 , which is mounted on the beam 22 and is used to tension the first rope 264 .

[0085] The second driving assembly 27 further includes a second tensioning frame 275 , which is mounted on the crossbeam 22 and is used to tension the second rope 274 .

[0086] With this arrangement, the first tensioning frame 265 can be used to tension the first rope 264, preventing damage to the first rope 264 caused by direct contact between the first rope 264 and the crossbeam 22, effectively protecting the first rope 264 and helping to extend the service life of the first rope 264. The second tensioning frame 275 can be used to tension the second rope 274, preventing damage to the second rope 274 caused by direct contact between the second rope 274 and the crossbeam 22, effectively protecting the second rope 274 and helping to extend the service life of the second rope 274.

[0087] In one embodiment of the present application, see Figures 1 to 5 The lifting assembly 21 includes a lifting frame 211, a lifting driver 212, a lifting plate 213 and a lifting rope 214. The lifting frame 211 is installed on the pool body 1, the lifting driver 212 is installed on the lifting frame 211, the lifting plate 213 is installed at one end of the beam 22, and the lifting rope 214 is installed between the lifting driver 212 and the lifting plate 213, and is configured to drive the beam 22 to move along the first direction through the lifting driver 212.

[0088] With such an arrangement, the height of the lifting driver 212 can be increased under the action of the lifting frame 211, so that the aeration mechanism 2 can be lifted to the target height during maintenance, which is convenient for maintenance and helps to improve the convenience of use.

[0089] Under the action of the lifting driver 212, the lifting rope 214 can pull the lifting plate 213, so that the crossbeam 22 moves along the first direction, thereby adjusting the position of the aeration mechanism 2 in the first direction, which helps to improve the applicability of the device.

[0090] Optionally, the lifting drive 212 is configured as a winch.

[0091] In one embodiment of this application, please refer to Figures 1 to 5 The lifting assembly 21 also includes a lifting tensioning frame 215 , which is installed on the lifting frame 211 and is used to tension the lifting rope 214 .

[0092] With such an arrangement, the lifting tensioning frame 215 can be used to tension the lifting rope 214, avoiding direct contact between the lifting rope 214 and the lifting frame 211, which may cause damage to the lifting rope 214. This can effectively protect the lifting rope 214 and help extend the service life of the lifting rope 214.

[0093] In one embodiment of the present application, see Figures 1 to 5 The lifting assembly 21 also includes two guide steel columns 216. The two guide steel columns 216 are both installed on the pool body 1 and are respectively arranged at both ends of the beam 22.

[0094] With such arrangement, when adjusting the position of the aeration mechanism 2 in the first direction, the two guide steel columns 216 can guide the crossbeam 22, which helps to improve the movement stability of the crossbeam 22 in the first direction, and further helps to improve the movement stability of the aeration mechanism 2 in the first direction.

[0095] The working principle of the heavy metal industrial wastewater treatment system provided in this application is as follows: when treating heavy metal industrial wastewater, the heavy metal industrial wastewater is first injected into the tank body 1. According to the liquid level of the wastewater in the tank body 1, the lifting rope 214 is retracted and released by the lifting driver 212, so that the crossbeam 22 and the aeration mechanism 2 can be moved in the first direction until the aeration mechanism 2 is completely immersed in the wastewater. The external air compressor transports gas or oxygen to the aerator 24 through the crossbeam 22, the connecting pipe 251, the telescopic hose 252 and the air inlet pipe 23 in sequence, and finally aerates the wastewater through the aerator 24. During the aeration process, the first driver 262 reels the first rope 264, and the second driver 272 releases the second rope 274. Under the action of the first rope 264 and the first fixing ring 263, the air inlet pipe 23 can swing clockwise around the second direction, thereby causing the aerator 24 to swing clockwise around the second direction. During aeration, the first actuator 262 releases the first rope 264, while the second actuator 272 reels the second rope 274. Driven by the second rope 274 and the second fixing ring 273, the air inlet pipe 23 swings counterclockwise in the second direction. During aeration, oil and fat continuously float to the surface of the wastewater. The reaction tank 3 extracts the lower layer of liquid from the tank body 1 and simultaneously introduces a reagent (ferrous sulfate, sodium bisulfite, sodium hypochlorite, etc.) into the reaction tank 3 to react chemically with the heavy metal ions in the wastewater. The regulating tank 4 extracts wastewater from the reaction tank 3 and simultaneously introduces a reagent (sodium hydroxide or sulfuric acid) into the reaction tank 3 to adjust the pH of the wastewater to a predetermined range, converting some dissolved metal ions into insoluble hydroxide precipitates. The sedimentation tank 5 extracts wastewater from the regulating tank 4 and simultaneously introduces a flocculant to flocculate impurities and precipitates into large flocs. The filter tank 6 extracts wastewater from the sedimentation tank 5 and filters it.

[0096] The one or more embodiments of this application are intended to encompass all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this application should be included in the scope of protection of this application.

Claims

1. A heavy metal industrial wastewater treatment system, characterized in that: include: pool(1); A plurality of aeration mechanisms (2) are installed on the tank body (1) and are arranged at intervals; the aeration mechanism (2) comprises two lifting assemblies (21), a crossbeam (22), an air inlet pipe (23), a plurality of air inlet members, two hinged air inlet assemblies (25) and a first drive assembly (26); the two lifting assemblies (21) are installed on the tank body (1) and are respectively located on both sides of the tank body (1); the crossbeam (22) is installed between the output ends of the two lifting assemblies (21) and moves along a first direction under the drive of the two lifting assemblies (21) and is located at the first direction. The air intake pipe (23) is provided in the pool body (1) and is located between the two ends of the crossbeam (22). A plurality of the air intake members are installed on the air intake pipe (23) and are evenly arranged along the extension direction of the air intake pipe (23). The two hinged air intake assemblies (25) are respectively located at the two ends of the air intake pipe (23) and are installed between the air intake pipe (23) and the crossbeam (22). The first driving assembly (26) is installed on the crossbeam (22) and is configured to drive the air intake pipe (23) to swing clockwise around the second direction. Wherein, the air inlet member includes a plurality of aerators (24); The hinged air intake assembly (25) comprises a connecting pipe (251), a telescopic hose (252) and a hinge (253); the connecting pipe (251) is mounted on the crossbeam (22); the telescopic hose (252) is mounted between the air intake pipe (23) and the connecting pipe (251); the hinge (253) is mounted between the connecting pipe (251) and the air intake pipe (23) and is used to suspend the air intake pipe (23) on the connecting pipe (251); A reaction tank (3) is connected to the tank body (1) and is configured to react with heavy metal ions by adding a reagent; A regulating tank (4), which is in communication with the reaction tank (3) and is configured to regulate the pH value of heavy metal industrial wastewater; a sedimentation tank (5), which is in communication with the regulating tank (4) and is configured to form sedimentation by adding a flocculant; The filter tank (6) is connected to the sedimentation tank (5) and is configured to filter the sediment in the heavy metal industrial wastewater.

2. The heavy metal industrial wastewater treatment system according to claim 1, characterized in that: The aeration mechanism (2) further comprises a second drive assembly (27), the second drive assembly (27) being mounted on the crossbeam (22) and configured to drive the air inlet pipe (23) to swing counterclockwise around a second direction.

3. The heavy metal industrial wastewater treatment system according to claim 2, characterized in that: The air intake pipe (23) comprises an air intake channel (231) and two air intake flanges (232), wherein the two air intake flanges (232) are respectively connected to two ends of the air intake channel (231); The connecting pipe (251) comprises a connecting channel (2511) and two connecting flanges (2512), wherein the two connecting flanges (2512) are respectively connected to two ends of the connecting channel (2511); The telescopic hose (252) comprises a telescopic channel (2521) and two telescopic flanges (2522), wherein the two telescopic flanges (2522) are respectively connected to two ends of the telescopic channel (2521); The hinged member (253) includes two first hinged structures (2531) and two second hinged structures (2532), wherein the two first hinged structures (2531) are both mounted on one end of the connecting flange (2512) facing away from the telescopic hose (252), and the two second hinged structures (2532) are both mounted on one end of the air inlet flange (232) facing away from the telescopic hose (252), and are respectively hinged to the two first hinged structures (2531).

4. The heavy metal industrial wastewater treatment system according to claim 3, characterized in that: The first hinge structure (2531) comprises a first semicircular flange (25311) and a first hinge plate (25312), wherein the first semicircular flange (25311) is mounted on an end of the connecting flange (2512) facing away from the telescopic hose (252), and the first hinge plate (25312) is connected to the first semicircular flange (25311) and is bent relative to the first semicircular flange (25311); The second hinged structure (2532) includes a second semicircular flange (25321) and a second hinged plate (25322), wherein the second semicircular flange (25321) is mounted on an end of the air inlet flange (232) facing away from the telescopic hose (252), and the second hinged plate (25322) is connected to the second semicircular flange (25321), bent relative to the second semicircular flange (25321), and hinged to the second hinged plate (25322).

5. The heavy metal industrial wastewater treatment system according to claim 2, characterized in that: The first driving assembly (26) comprises a first mounting frame (261), a first driver (262), a first fixing ring (263) and a first rope (264); the first mounting frame (261) is mounted on the crossbeam (22); the first driver (262) is mounted on the first mounting frame (261); the first fixing ring (263) is sleeved on the air intake pipe (23); the first rope (264) is mounted between the first driver (262) and the first fixing ring (263) and is configured to drive the air intake pipe (23) to swing clockwise around a second direction via the first driver (262); The second driving assembly (27) comprises a second mounting frame (271), a second driver (272), a second fixing ring (273) and a second rope (274); the second mounting frame (271) is mounted on the crossbeam (22); the second driver (272) is mounted on the second mounting frame (271); the second fixing ring (273) is sleeved on the air intake pipe (23); the second rope (274) is mounted between the second driver (272) and the second fixing ring (273) and is configured to drive the air intake pipe (23) to swing counterclockwise in a second direction through the second driver (272).

6. The heavy metal industrial wastewater treatment system according to claim 5, characterized in that: The first drive assembly (26) further includes a first tensioning frame (265), the first tensioning frame (265) being mounted on the crossbeam (22) and being used to tension the first rope (264); The second drive assembly (27) further includes a second tensioning frame (275), which is mounted on the crossbeam (22) and is used to tension the second rope (274).

7. The heavy metal industrial wastewater treatment system according to claim 1, characterized in that: The lifting assembly (21) comprises a lifting frame (211), a lifting drive (212), a lifting plate (213) and a lifting rope (214); the lifting frame (211) is mounted on the pool body (1); the lifting drive (212) is mounted on the lifting frame (211); the lifting plate (213) is mounted on one end of the beam (22); the lifting rope (214) is mounted between the lifting drive (212) and the lifting plate (213), and is configured to drive the beam (22) to move along a first direction through the lifting drive (212).

8. The heavy metal industrial wastewater treatment system according to claim 7, characterized in that: The lifting assembly (21) further comprises a lifting tensioning frame (215), wherein the lifting tensioning frame (215) is mounted on the lifting frame (211) and is used to tension the lifting rope (214).

9. The heavy metal industrial wastewater treatment system according to claim 7, characterized in that: The lifting assembly (21) further includes two guide steel columns (216), both of which are mounted on the tank body (1) and pass through the two ends of the crossbeam (22).

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