Heavy metal industrial wastewater treatment system

Abstract

The invention provides a heavy metal industrial wastewater treatment system. A plurality of aeration mechanisms are mounted in a tank body and are arranged at intervals; the aeration mechanism comprises two lifting assemblies, a cross beam, an air inlet pipe and a plurality of air inlet pieces, the two lifting assemblies are both installed in the pool body and located on the two sides of the pool body respectively, the cross beam is installed between the output ends of the two lifting assemblies, moves in the first direction under driving of the two lifting assemblies and is located in the pool body, the air inlet pipe is arranged in the pool body, and the air inlet pieces are located in the pool body. The multiple air inlet pieces are installed on the air inlet pipe and evenly arranged in the extending direction of the air inlet pipe. Wherein the air inlet piece comprises a plurality of aerators. The reaction tank is communicated with the tank body. The regulating tank is communicated with the reaction tank. The sedimentation tank is communicated with the regulating tank. The filter tank is communicated with the sedimentation tank. According to the heavy metal industrial wastewater treatment system provided by the invention, during treatment, aeration treatment can be uniformly performed on heavy metal industrial wastewater from different directions, so that grease and wastewater are sufficiently 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 containing high concentrations of heavy metal ions (such as lead, mercury, cadmium, chromium, copper, zinc, etc.) generated during industrial production. Among them, heavy metal industrial wastewater generated in electroplating, metal processing, food and other industries usually contains a large amount of grease and grease scum. The presence of grease and grease scum will affect the subsequent treatment of heavy metal industrial wastewater. Therefore, when treating heavy metal industrial wastewater, heavy metal industrial wastewater is usually aerated to allow grease and grease scum to float to the surface of heavy metal industrial wastewater. However, when using aeration equipment to treat heavy metal industrial wastewater, the existing aeration equipment has the problem of incomplete separation of grease and 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, including: Pool body; A plurality of aeration mechanisms, each of which is installed on the tank body and arranged at intervals; 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 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 a first direction under the drive of the two lifting assemblies, and is located in the tank body, the air intake pipe is arranged in the tank body and is located between the two ends of the crossbeam, a plurality of air intake members are installed 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 installed between the air intake pipe and the crossbeam, the first drive assembly is installed on the crossbeam, and is configured to drive the air intake pipe to swing around a second direction; Wherein, the air inlet member includes a plurality of aerators; A reaction cell, connected to the cell body and configured to react with heavy metal ions by adding a reagent; A regulating tank, connected to the reaction tank and configured to adjust the pH value of heavy metal industrial wastewater; A sedimentation tank, connected to the regulating tank and configured to form sedimentation by adding a flocculant; The filtering tank is connected to the sedimentation tank and is configured to filter the sediment in the heavy metal industrial wastewater.

[0005] Optionally, the aeration mechanism further includes a second driving assembly, which is mounted on the crossbeam and is configured to drive the air inlet pipe to swing around a second direction.

[0006] Optionally, the articulated air intake assembly includes a connecting pipe, a telescopic hose and a hinge, the connecting pipe is installed on the cross beam, 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 from the connecting pipe.

[0007] 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 two ends of the air intake channel; The connecting pipe comprises a connecting channel and two connecting flanges, and the two connecting flanges are respectively connected to two ends of the connecting channel; The telescopic hose comprises a telescopic channel and two telescopic flanges, wherein the two telescopic flanges are respectively connected to two ends of the telescopic channel; 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, and 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.

[0008] Optionally, the first hinge structure includes a first semicircular flange and a first hinge plate, 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; The second hinged structure includes a second semicircular flange and a second hinged plate. The second semicircular flange is installed on an end of the air inlet flange facing away from the telescopic hose. The second hinged plate is connected to the second semicircular flange, bent relative to the second semicircular flange, and hinged to the second hinged plate.

[0009] 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; 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 cross beam, 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 a second direction through the second driver.

[0010] Optionally, the first driving assembly further comprises a first tensioning frame, which is mounted on the crossbeam and is used to tension the first rope; The second driving assembly further includes a second tensioning frame, which is mounted on the crossbeam and is used for tensioning the second rope.

[0011] 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.

[0012] 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.

[0013] Optionally, the lifting assembly further includes two guide steel columns, both of which are installed on the pool body and are respectively passed through the two ends of the beam.

[0014] The beneficial effects of the heavy metal industrial wastewater treatment system provided by this application are: The heavy metal industrial wastewater treatment system provided by the present application, when treating heavy metal industrial wastewater, multiple aerators are evenly arranged on the periphery of the air inlet pipe, and the heavy metal industrial wastewater can be evenly aerated from different directions through multiple aerators, so that grease and wastewater are fully separated. In addition, during the aeration process, the impurities in the wastewater can collide more violently, which facilitates the grease to fall off the surface of the impurities, and also helps to separate the grease, with a good separation effect.

[0015] During use, according to the liquid level of heavy metal industrial wastewater in the tank body, the aeration mechanism can be driven to move along the first direction through the action of two lifting components, so that the position of the aeration mechanism in the tank body can be changed, so that the aeration mechanism can be applied to different liquid level conditions, and the application range is wide. In addition, when the aeration mechanism is maintained, the corresponding aeration mechanism can be maintained through the two lifting components. Compared with the related technology, there is no need to drain the wastewater in the tank body, and maintenance can be achieved without stopping the machine, which greatly improves the convenience of use.

[0016] 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, and the treatment effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying any creative labor.

[0018] Figure 1 A schematic diagram of a heavy metal industrial wastewater treatment system provided in an embodiment of the present application; Figure 2 A three-dimensional diagram of a heavy metal industrial wastewater treatment system provided in an embodiment of the present application; Figure 3 for Figure 2 A partial enlarged view of the middle A; Figure 4 for Figure 2 A partial enlarged view of point B in the middle; Figure 5 for Figure 2 A partial enlarged view of point C in the middle.

[0019] Among them, the reference numerals in the figure are: 1. Pool body; 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. Articulated member; 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 frame; 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 frame; 272, a second driver; 273, a second fixing ring; 274, a second rope; 275, a second tensioning frame; 3. Reaction pool; 4. Regulating tank; 5. Sedimentation tank; 6. Filter pool. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] It should be noted that when a component is referred to as being "mounted on", "fixed on" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] 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 drawings, and are only for the convenience of describing the present 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 should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In this application, the term "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0025] like Figures 1 to 5 As shown, the present application provides a heavy metal industrial wastewater treatment system, comprising a tank body 1, a plurality of aeration mechanisms 2, a reaction tank 3, a regulating tank 4, a sedimentation tank 5 and a filtration tank 6. The plurality of aeration mechanisms 2 are all installed on the tank body 1 and are arranged at intervals. The aeration mechanism 2 includes two lifting components 21, a crossbeam 22, an air inlet pipe 23, a plurality of air inlet components, two hinged air inlet components 25 and a first drive component 26. The two lifting components 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 components 21 and moves along the first direction under the drive of the two lifting components 21 and is located in the tank body 1. The air inlet pipe 23 is arranged in the tank body 1 and is located between the two ends of the crossbeam 22. The plurality of air inlet components are installed 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 components 25 are respectively located at the two ends of the air inlet pipe 23 and are installed between the air inlet pipe 23 and the crossbeam 22. The first drive component 26 is installed on the crossbeam 22 and is configured to drive the air inlet pipe 23 to swing around the second direction. The air inlet components include a plurality of aerators 24. The reaction tank 3 is connected to the tank body 1 and is configured to react with heavy metal ions by adding reagents. The regulating tank 4 is connected to the reaction tank 3 and is configured to adjust the pH value of heavy metal industrial wastewater. The sedimentation tank 5 is connected to the regulating tank 4 and is configured to form a precipitate by adding a flocculant. The filtering tank 6 is connected to the sedimentation tank 5 and is configured to filter the precipitate in the heavy metal industrial wastewater.

[0026] 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, as shown in FIG. Figure 2 The Y-axis shown in .

[0027] It should be noted that in this embodiment, the number of aeration mechanisms 2 is set to three for illustration. 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, which is not limited here.

[0028] 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, according to actual application requirements, the aeration mechanism 2 can also be set to two, four, five... other numbers, which are not limited here. In this embodiment, the number of aerators 24 is set to four for illustration. Of course, in other embodiments, according to actual application requirements, the aerators 24 can also be set to two, three, five... other numbers, which are not limited here.

[0029] The heavy metal industrial wastewater treatment system provided by the present application, when treating heavy metal industrial wastewater, multiple aerators 24 are evenly arranged on the periphery of the air inlet pipe 23. The heavy metal industrial wastewater can be evenly aerated from different directions by multiple aerators 24, so that grease and wastewater are fully separated. In addition, during the aeration process, the impurities in the wastewater can collide more violently, which facilitates the grease to fall off the surface of the impurities, and also helps to separate the grease, with a good separation effect.

[0030] During use, according to the liquid level of heavy metal industrial wastewater in the tank body 1, the aeration mechanism 2 can be driven to move along the first direction through the action of the two lifting components 21, so that the position of the aeration mechanism 2 in the tank body 1 can be changed, so that the aeration mechanism 2 can be applied to different liquid level conditions and has a wide range of applications. In addition, when the aeration mechanism 2 is maintained, the corresponding aeration mechanism 2 can be maintained through the two lifting components 21. Compared with the related art, there is no need to drain the wastewater in the tank body 1, and maintenance can be achieved without stopping the machine, which greatly improves the convenience of use.

[0031] Through the two hinged air intake components 25, the air intake pipe 23 can swing relative to the crossbeam 22 while ensuring the normal air intake of the air intake pipe 23. Under the swinging action of the air intake pipe 23, multiple air intake components, that is, multiple aerators 24, can swing along with the air intake pipe 23. Compared with the related art, it helps to increase the aeration range of the aerator 24, so that the separation of grease and wastewater is more thorough and the separation effect is good. Under the action of the first drive component 26, the air intake pipe 23 can be driven to swing clockwise around the second direction. It helps to increase the aeration range of the aerator 24 and is easy to use.

[0032] With the cooperation of the reaction tank 3, the regulating tank 4, the sedimentation tank 5 and the filtering tank 6, the heavy metal ions in the heavy metal industrial wastewater can be effectively removed, and the treatment effect is good. Optionally, both ends of the air inlet pipe 23 are connected to an external air compressor.

[0033] Optionally, a partition (not shown in the figure) is installed in the air intake pipe 23.

[0034] With such arrangement, the partition can prevent the air intake disturbance of the two external air compressors, thereby preventing damage to the external air compressors.

[0035] 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 around a second direction.

[0036] With such arrangement, the two hinged air intake components 25 ensure that the air intake pipe 23 can be normally inhaled while the air intake pipe 23 can swing relative to the crossbeam 22. Under the swinging action of the air intake pipe 23, multiple air intake components, i.e., multiple aerators 24, can swing along with the air intake pipe 23, which helps to increase the aeration range of the aerator 24 compared with the related art, thereby making the separation of grease and wastewater more thorough and having a good separation effect.

[0037] Under the action of the first driving assembly 26, the air inlet pipe 23 can be driven to swing clockwise around the second direction. Under the action of the second driving assembly 27, the air inlet pipe 23 can be driven to swing counterclockwise around the second direction. With the cooperation of the first driving assembly 26 and the second driving assembly 27, the air inlet pipe 23 can swing bidirectionally around the second direction, with a large swing range, which helps to increase the aeration range of the aerator 24 and is easy to use.

[0038] In one embodiment of the present 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 cross beam 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.

[0039] With such arrangement, the telescopic hose 252 and the air inlet pipe 23 can be connected to the external air compressor through the connecting pipe 251. In addition, the hinge 253 can be easily installed.

[0040] When the air intake pipe 23 swings relative to the cross beam 22, the telescopic hose 252 can prevent the connection pipe 251 and the air intake pipe 23 from interfering with each other, which may cause the air intake pipe 23 to be unable to swing, and can also ensure that the compressed gas is normally delivered to the air intake pipe 23. In addition, when the air intake pipe 23 swings relative to the cross beam 22, the hinge 253 can ensure that the air intake pipe 23 swings normally and can also suspend the air intake pipe 23 to the connection pipe 251, avoiding the air intake pipe 23 being directly suspended from the telescopic hose 252 and causing damage to the telescopic hose 252. In addition, when the air intake pipe 23 swings relative to the cross beam 22, the hinge 253 helps to improve the structural stability of the connection pipe 251 and the air intake pipe 23.

[0041] 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 , and the two air intake flanges 232 are respectively connected to the two ends of the air intake channel 231 .

[0042] The connecting pipe 251 includes a connecting channel 2511 and two connecting flanges 2512 . The two connecting flanges 2512 are respectively connected to two ends of the connecting channel 2511 .

[0043] 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 .

[0044] 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 one end of the connecting flange 2512 facing away from the telescopic hose 252. The two second hinged structures 2532 are both installed 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.

[0045] With such a configuration, under the action of the air intake flange 232 and the telescopic flange 2522, the air intake channel 231 and the telescopic channel 2521 can be detachably connected by external bolts, which is convenient for disassembly and installation, and helps to improve the convenience of use. In addition, under the action of the air intake flange 232 and the telescopic flange 2522, it helps to improve the structural stability between the air intake channel 231 and the telescopic channel 2521, which is not easy to loosen, and has a good sealing effect, and is not easy to cause gas leakage.

[0046] Under the action of the connecting flange 2512 and the telescopic flange 2522, the connecting channel 2511 and the telescopic channel 2521 can realize a detachable connection design through external bolts, which is convenient for disassembly and installation, and helps to improve the convenience of use. In addition, under the action of the connecting flange 2512 and the telescopic flange 2522, it helps to improve the structural stability between the connecting channel 2511 and the telescopic channel 2521, which is not easy to loosen, and has a good sealing effect, and it is not easy to cause gas leakage.

[0047] 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.

[0048] 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 one 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.

[0049] 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 one 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.

[0050] With such arrangement, when installing the hinge 253, the two first semicircular flanges 25311 are installed to the side of the connecting flange 2512 facing away from the telescopic hose 252, and the two first semicircular flanges 25311 can be enclosed to form a complete circular flange. The two second semicircular flanges 25321 are installed to the side of the air inlet flange 232 facing away from the telescopic hose 252, and the two second semicircular flanges 25321 can be enclosed to form a complete circular flange, which greatly reduces the difficulty of installation and provides a stable connection.

[0051] Under the action of the two first hinge plates 25312 and the two second hinge plates 25322 , the air inlet pipe 23 can swing relative to the connecting pipe 251 .

[0052] 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.

[0053] In one embodiment of the present 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 cross beam 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.

[0054] With such arrangement, compared with the first driver 262 being directly installed on the beam 22 , the first mounting frame 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 .

[0055] 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 .

[0056] The second driving 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 mounted on the cross beam 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 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.

[0057] With such arrangement, compared with the second driver 272 being directly installed on the beam 22 , the distance between the second driver 272 and the wastewater can be increased through the second mounting frame 271 , 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 .

[0058] 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 .

[0059] Optionally, the first driver 262 and the second driver 272 are both configured as winches.

[0060] In one embodiment of the present application, see Figures 1 to 5 The first driving assembly 26 also includes a first tensioning frame 265 , which is installed on the beam 22 and is used to tension the first rope 264 .

[0061] The second driving assembly 27 further includes a second tensioning frame 275 , which is mounted on the cross beam 22 and is used to tension the second rope 274 .

[0062] With such a configuration, the first tensioning frame 265 can be used to tension the first rope 264, thereby preventing the first rope 264 from being damaged due to direct contact with the cross beam 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, thereby preventing the second rope 274 from being damaged due to direct contact with the cross beam 22, effectively protecting the second rope 274, and helping to extend the service life of the second rope 274.

[0063] 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 on 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.

[0064] With such 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.

[0065] 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 application range of the device.

[0066] Optionally, the lifting drive 212 is configured as a winch.

[0067] In one embodiment of the present 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.

[0068] With such arrangement, the lifting tensioning frame 215 can be used to tension the lifting rope 214, thereby 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.

[0069] In one embodiment of the present application, see Figures 1 to 5 The lifting assembly 21 also includes two guide steel columns 216 , which are both installed on the pool body 1 and are respectively arranged at both ends of the beam 22 .

[0070] 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 cross beam 22, which helps to improve the movement stability of the cross beam 22 in the first direction, thereby helping to improve the movement stability of the aeration mechanism 2 in the first direction.

[0071] The working principle of the heavy metal industrial wastewater treatment system provided in the present 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 along the first direction until the aeration mechanism 2 is completely immersed in the wastewater. The external air compressor transports the 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, and then the aerator 24 can swing clockwise around the second direction. During the aeration process, the first driver 262 releases the first rope 264, and the second driver 272 reels the second rope 274. Under the action of the second rope 274 and the second fixing ring 273, the air inlet pipe 23 can swing counterclockwise around the second direction. During the aeration process, grease continuously floats to the surface of the wastewater. The reaction tank 3 extracts the lower layer liquid from the tank body 1, and at the same time, adds 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 at the same time, adds a reagent (sodium hydroxide or sulfuric acid) into the reaction tank 3 to adjust the pH value of the wastewater to a predetermined range, so that some dissolved metal ions therein are converted into insoluble hydroxide precipitation. The sedimentation tank 5 extracts wastewater from the regulating tank 4, and at the same time, adds a flocculant into the regulating tank 4 to flocculate the impurities and precipitation in the wastewater into large-volume flocs. The filter tank 6 extracts wastewater from the sedimentation tank 5 for filtration.

[0072] One or more embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present application should be included in the protection scope of the present application.

Claims

1. A heavy metal industrial wastewater treatment system, characterized in that: include: pool(1); A plurality of aeration mechanisms (2) are all mounted on the tank body (1) and are arranged at intervals; the aeration mechanism (2) comprises two lifting assemblies (21), a crossbeam (22), an air intake pipe (23), a plurality of air intake members, two hinged air intake assemblies (25) and a first drive assembly (26); the two lifting assemblies (21) are both mounted on the tank body (1) and are respectively located on two sides 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 along a first direction and is positioned at a first position. In the tank body (1), the air intake pipe (23) is arranged in the tank body (1) and is located between the two ends of the cross beam (22); a plurality of the air intake components are installed on the air intake pipe (23) and are evenly arranged along the extension direction of the air intake pipe (23); two hinged air intake components (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 cross beam (22); the first driving component (26) is installed on the cross beam (22) and is configured to drive the air intake pipe (23) to swing around a second direction; Wherein, the air inlet member comprises a plurality of aerators (24); A reaction pool (3), which is connected to the pool body (1) and is configured to react with heavy metal ions by adding a reagent; A regulating tank (4), which is connected to the reaction tank (3) and is configured to adjust the pH value of heavy metal industrial wastewater; A sedimentation tank (5) is connected to the regulating tank (4) and is configured to form sedimentation by adding a flocculant; The filtering 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 driving assembly (27), wherein the second driving assembly (27) is mounted on the crossbeam (22) and is configured to drive the air inlet pipe (23) to swing in a second direction.

3. The heavy metal industrial wastewater treatment system according to claim 2, characterized in that: 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).

4. The heavy metal industrial wastewater treatment system according to claim 3, 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), and 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), and the two telescopic flanges (2522) are respectively connected to two ends of the telescopic channel (2521); The hinged member (253) comprises two first hinged structures (2531) and two second hinged structures (2532), the two first hinged structures (2531) being mounted on one end of the connecting flange (2512) facing away from the telescopic hose (252), and the two second hinged structures (2532) being mounted on one end of the air inlet flange (232) facing away from the telescopic hose (252), and being hinged to the two first hinged structures (2531), respectively.

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

6. 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 through 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).

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

8. 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 cross beam (22); the lifting rope (214) is mounted between the lifting drive (212) and the lifting plate (213), and is configured to drive the cross beam (22) to move along a first direction through the lifting drive (212).

9. The heavy metal industrial wastewater treatment system according to claim 8, 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).

10. The heavy metal industrial wastewater treatment system according to claim 8, characterized in that: The lifting assembly (21) further comprises two guide steel columns (216), wherein the two guide steel columns (216) are both mounted on the tank body (1) and are respectively passed through the two ends of the crossbeam (22).

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