Chemical heavy metal ion sewage treatment equipment

Abstract

The utility model discloses chemical heavy metal ion sewage treatment equipment, which relates to the technical field of sewage treatment equipment design and comprises a sewage treatment barrel fixing frame, a heavy metal ion purifying and filtering unit and a stirring and mixing unit. A stirring and mixing unit is arranged in the sewage treatment barrel, a sewage inlet hole is formed in the sewage treatment barrel, a first circular pipeline is arranged at the position, located on the edge of the sewage inlet hole, of the outer side surface of the sewage treatment barrel, and a sewage outlet hole is formed in the side, away from the first circular pipeline, of the sewage treatment barrel; the position, located on the edge of the sewage outlet hole, of the outer side surface of the sewage treatment barrel is fixedly connected with one end of a second circular pipeline, when sewage is treated, heavy metal ion precipitates can be removed, a chemical agent and the sewage are mixed more uniformly, sewage treatment is not affected, and use is not affected.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment design technology, specifically a wastewater treatment equipment for chemical heavy metal ions. Background Technology

[0002] The chemical industry comprises two main categories: organic chemicals and inorganic chemicals. Chemical products are diverse and complex in composition, and the wastewater discharged from chemical plants is called chemical wastewater. Chemical wastewater is varied, most of it is highly toxic, difficult to purify, and tends to accumulate in organisms. It also exhibits significant oxygen-consuming properties in water bodies, easily deteriorating water quality. Furthermore, chemical wastewater contains many heavy metal ions. To facilitate wastewater purification, it is necessary to remove these heavy metal ions, thus requiring a chemical heavy metal ion wastewater treatment system.

[0003] Existing wastewater treatment equipment for heavy metal ions in chemical industries has the following drawbacks: it cannot remove heavy metal ion precipitates during wastewater treatment, and the chemical agents are not mixed evenly with the wastewater, which affects wastewater treatment and its use. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a chemical heavy metal ion wastewater treatment device. During wastewater treatment, heavy metal ion precipitates can be removed, and the chemical agents are mixed more evenly with the wastewater without affecting the wastewater treatment or the use of the equipment. This can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a chemical heavy metal ion wastewater treatment device, comprising a wastewater treatment tank fixing frame, a heavy metal ion purification and filtration unit, and a stirring and mixing unit;

[0006] Wastewater treatment tank fixing frame: A wastewater treatment tank is fixedly attached to the upper part. The wastewater treatment tank is equipped with a stirring and mixing unit. The wastewater treatment tank has a wastewater inlet hole. A circular pipe is provided on the outer surface of the wastewater treatment tank at the edge of the wastewater inlet hole. A wastewater outlet hole is provided on the side of the wastewater treatment tank away from the circular pipe. One end of a circular pipe is fixedly connected to the edge of the wastewater outlet hole on the outer surface of the wastewater treatment tank.

[0007] Heavy metal ion purification and filtration unit: includes a support plate, a fixed shell, an activated carbon filter block, a connecting plate, and a pull handle. A support plate is fixedly connected to the right surface of the right support rod of the wastewater treatment tank on the fixed frame of the wastewater treatment tank. A fixed shell is fixedly connected to the support plate. The other end of the second circular pipe extends into the corresponding fixed shell. A water outlet is opened on the right surface of the fixed shell. A rectangular hole is opened on the upper surface of the fixed shell. The rectangular hole extends into the fixed shell. A connecting plate is fixedly snapped into the rectangular hole. The upper surface of the connecting plate is movably connected to the pull handle through a movable pin. An activated carbon filter block is fixedly snapped into the fixed shell. The upper surface of the activated carbon filter block is fixedly connected to the lower surface of the corresponding connecting plate.

[0008] The wastewater treatment tank mounting bracket is used to fix the device. The wastewater treatment tank is used for sedimentation of wastewater to remove heavy metal ions. The support plate is used to fix the mounting shell, which in turn fixes the activated carbon filter blocks. The activated carbon filter blocks are used to filter impurities in the wastewater to remove heavy metal ions for ease of use. The connecting plate is used to fix the activated carbon filter blocks for easy replacement. The pull handle is used to easily move the connecting plate to facilitate the replacement of activated carbon, thereby removing heavy metal ions.

[0009] Furthermore, the heavy metal ion purification and filtration unit also includes a filter screen fixing cover, a filter screen, and a water outlet pipe. A filter screen fixing cover is fixedly connected to the right side surface of the fixing shell at the edge of the water outlet hole. A filter screen is fixedly snapped into the filter screen fixing cover. A circular hole is opened on the right side surface of the filter screen fixing cover, and the circular hole extends into the filter screen fixing cover. One end of the water outlet pipe is fixedly connected to the right side surface of the filter screen fixing cover at the edge of the circular hole.

[0010] The filter screen fixing cover is used to fix the filter screen. The filter screen is used to filter sewage and prevent impurities from flowing into the water pump and affecting its use. The outlet pipe is used to allow the filtered water to flow into the water pump for filtration.

[0011] Furthermore, the heavy metal ion purification and filtration unit also includes a water pump mounting base, a water pump, and an external connecting pipe. A water pump mounting base is fixedly connected to the rear surface of the mounting shell, and a water pump is fixedly connected to the water pump mounting base. The other end of the water outlet pipe is fixedly connected to the water inlet on the water pump, and the water outlet on the water pump is fixedly connected to the external connecting pipe. The input end of the water pump is electrically connected to the output end of an external power supply through an external control switch group.

[0012] The water pump mounting bracket is used to fix the water pump. When the water pump is started, it provides power for the flow of sewage, making it convenient to use. The external connection pipe is used to facilitate the flow of purified water to the outside, making it convenient to use.

[0013] Furthermore, the mixing unit includes a snap-fit ​​circular plate, a chemical addition pipe, a motor mounting bracket, a rotating motor, a rotating cylinder, and a stirring fan blade. A limiting circular hole is formed on the upper surface of the wastewater treatment tank, extending into the tank. A snap-fit ​​circular plate is fixedly snapped into the limiting circular hole. A chemical addition hole is formed on the upper surface of the snap-fit ​​circular plate, penetrating both the upper and lower sides of the snap-fit ​​circular plate. A chemical addition pipe is fixedly snapped into the upper surface of the snap-fit ​​circular plate at the edge of the chemical addition hole. The snap-fit ​​circular plate is rotatably connected to the rotating cylinder via bearings. The lower end of the rotating cylinder extends into the sewage treatment tank. A stirring fan blade is fixedly fitted onto the rotating cylinder at a position inside the sewage treatment tank. The upper end of the rotating cylinder extends to the upper surface of the snap-fit ​​circular plate and is fixedly connected to the output shaft of the rotating motor. A motor mounting bracket is fixedly connected to the upper surface of the snap-fit ​​circular plate at a position along the edge of the rotating cylinder. The motor mounting bracket is fixedly connected to the rotating motor. The input end of the rotating motor is electrically connected to the output end of an external power supply via an external control switch group.

[0014] The snap-fit ​​circular plate is used to fix the chemical addition pipe, which allows chemicals to be added into the wastewater treatment tank for easy sedimentation. The motor mounting bracket is used to fix the rotating motor. When the rotating motor is started, it drives the rotating cylinder to rotate, which in turn drives the stirring blades to rotate. The stirring blades are used to stir the wastewater, making the chemicals and wastewater mix more evenly, thus facilitating sedimentation.

[0015] Furthermore, the mixing unit also includes a circular sealing plate, and a sediment cleaning hole is provided on the lower surface of the sewage treatment tank. The sediment cleaning hole extends into the sewage treatment tank, and the sediment cleaning hole is fixedly connected to the circular sealing plate by bolts.

[0016] The circular sealing plate is used to seal and fix the sewage treatment tank, which facilitates the sedimentation of sewage. When sedimentation is not in progress, it also facilitates the collection of sediment for convenient use.

[0017] Furthermore, it also includes a sediment collection frame, wherein a sediment collection frame is fixedly connected to the upper surface of the sewage treatment tank fixing frame at the corresponding position of the circular sealing fixing plate.

[0018] The precipitate collection frame is used to collect the heavy metal ion precipitate after precipitation, so as to facilitate recycling.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This chemical heavy metal ion wastewater treatment equipment has the following advantages: It is equipped with a heavy metal ion purification and filtration unit. A support plate is used to fix the fixed shell, which is used to fix the activated carbon filter block. The activated carbon filter block is used to filter impurities in the wastewater to remove heavy metal ions, making it convenient to use. A connecting plate is used to fix the activated carbon filter block, making it convenient to replace the activated carbon filter block. A pull handle is used to move the connecting plate. A filter screen fixing cover is used to fix the filter screen. The filter screen is used to filter the wastewater and prevent impurities from flowing into the water pump and affecting its use. The outlet pipe is used to allow the filtered water to flow into the water pump. The water pump fixing seat is used to fix the water pump. The water pump provides power for the wastewater flow when it starts, making it convenient to use. An external connection pipe is used to allow the purified water to flow to the outside to remove impurities and facilitate the flow of wastewater.

[0021] 2. This chemical heavy metal ion wastewater treatment equipment has the following advantages: It is equipped with a stirring and mixing unit, which uses a snap-fit ​​circular plate to fix the chemical addition pipe. The chemical addition pipe allows chemicals to be added into the wastewater treatment tank for easy sedimentation. The motor mounting bracket is used to fix the rotating motor. When the rotating motor starts, it drives the rotating cylinder to rotate, which in turn drives the stirring blades to rotate. The stirring blades are used to stir the wastewater to make the chemicals and wastewater mix more evenly. The circular sealing plate is used to seal and fix the wastewater treatment tank to facilitate the sedimentation of the wastewater. When sedimentation is not in progress, it is also convenient to collect the sediment for sedimentation to facilitate the removal of heavy metal impurities.

[0022] 3. This chemical heavy metal ion wastewater treatment equipment has the following advantages: during wastewater treatment, heavy metal ion precipitates can be removed, and the chemical agents are mixed more evenly with the wastewater, without affecting wastewater treatment or use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the rear side of this utility model;

[0025] Figure 3 This is a front cross-sectional view of the present invention.

[0026] In the diagram: 1. Wastewater treatment tank mounting bracket; 2. Wastewater treatment tank; 3. Heavy metal ion purification and filtration unit; 31. Support plate; 32. Fixing shell; 33. Activated carbon filter block; 34. Connecting clamp plate; 35. Pull handle; 36. Filter screen plate fixing cover; 37. Filter screen plate; 38. Water outlet pipe; 39. Water pump mounting base; 310. Water pump; 311. External connection pipe; 4. Mixing unit; 41. Snap-fit ​​circular plate; 42. Chemical addition pipe; 43. Motor mounting bracket; 44. Rotating motor; 45. Rotating cylinder; 46. Mixing fan blade; 47. Circular sealing fixing plate; 5. Sediment collection frame. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-3 This embodiment provides a technical solution: a chemical heavy metal ion wastewater treatment device, including a wastewater treatment tank fixing frame 1, a heavy metal ion purification and filtration unit 3, and a stirring and mixing unit 4;

[0029] Wastewater treatment tank fixing frame 1: A wastewater treatment tank 2 is fixedly attached to the upper part. The wastewater treatment tank 2 is equipped with a stirring and mixing unit 4. A wastewater inlet hole is opened on the wastewater treatment tank 2. A circular pipe 1 is opened on the outer surface of the wastewater treatment tank 2 at the edge of the wastewater inlet hole. A wastewater outlet hole is opened on the side of the wastewater treatment tank 2 away from the circular pipe 1. One end of the circular pipe 2 is fixedly connected to the edge of the wastewater outlet hole on the outer surface of the wastewater treatment tank 2.

[0030] Heavy metal ion purification and filtration unit 3 includes a support plate 31, a fixed shell 32, an activated carbon filter block 33, a connecting plate 34, and a pull handle 35. A support plate 31 is fixedly connected to the right surface of the support rod on the right side of the sewage treatment tank 2 on the sewage treatment tank fixing frame 1. A fixed shell 32 is fixedly connected to the support plate 31. The other end of the circular pipe 2 extends into the corresponding fixed shell 32. A water outlet hole is opened on the right surface of the fixed shell 32. A rectangular hole is opened on the upper surface of the fixed shell 32. The rectangular hole extends into the fixed shell 32. A connecting plate 34 is fixedly snapped into the rectangular hole. The upper surface of the connecting plate 34 is movably connected to the pull handle 35 through a movable pin. An activated carbon filter block 33 is fixedly snapped into the fixed shell 32. The upper surface of the activated carbon filter block 33 is fixedly connected to the lower surface of the corresponding connecting plate 34.

[0031] The wastewater treatment tank mounting bracket 1 is used to fix the device. The wastewater treatment tank 2 is used to settle wastewater to remove heavy metal ions. The support plate 31 is used to fix the fixing shell 32. The fixing shell 32 is used to fix the activated carbon filter block 33. The activated carbon filter block 33 is used to filter impurities in the wastewater to remove heavy metal ions for easy use. The connecting plate 34 is used to fix the activated carbon filter block 33 for easy replacement of the activated carbon filter block 33 for easy use. The pull handle 35 is used to easily pull the connecting plate 34 to move and easily replace the activated carbon to remove heavy metal ions.

[0032] The heavy metal ion purification and filtration unit 3 also includes a filter screen fixing cover 36, a filter screen 37, and a water outlet pipe 38. A filter screen fixing cover 36 is fixedly connected to the right side surface of the fixing shell 32 at the edge of the water outlet hole. A filter screen 37 is fixedly snapped into the filter screen fixing cover 36. A round hole is opened on the right side surface of the filter screen fixing cover 36, and the round hole extends into the filter screen fixing cover 36. One end of the water outlet pipe 38 is fixedly connected to the right side surface of the filter screen fixing cover 36 at the edge of the round hole.

[0033] The filter screen plate fixing cover 36 is used to fix the filter screen plate 37. The filter screen plate 37 is used to filter sewage to prevent impurities from flowing into the water pump 310 and affecting its use. The outlet pipe 38 is used to allow the filtered water to flow into the water pump 310 for filtration.

[0034] The heavy metal ion purification and filtration unit 3 also includes a water pump mounting base 39, a water pump 310, and an external connecting pipe 311. A water pump mounting base 39 is fixedly connected to the rear surface of the mounting shell 32, and a water pump 310 is fixedly connected to the water pump mounting base 39. The other end of the water outlet pipe 38 is fixedly connected to the water inlet on the water pump 310, and the water outlet on the water pump 310 is fixedly connected to the external connecting pipe 311. The input end of the water pump 310 is electrically connected to the output end of the external power supply through an external control switch group.

[0035] The water pump mounting base 39 is used to fix the water pump 310. The water pump 310 is started to provide power for the flow of sewage, so as to facilitate its use. The external connection pipe 311 is used to facilitate the flow of purified water to the outside, so as to facilitate its use.

[0036] The mixing unit 4 includes a snap-fit ​​circular plate 41, a chemical addition pipe 42, a motor mounting bracket 43, a rotating motor 44, a rotating cylinder 45, and a stirring fan blade 46. A limiting circular hole is formed on the upper surface of the wastewater treatment tank 2, extending into the tank. A snap-fit ​​circular plate 41 is fixedly snapped into the limiting circular hole. A chemical addition hole is formed on the upper surface of the snap-fit ​​circular plate 41, penetrating both the upper and lower sides of the snap-fit ​​circular plate 41. A chemical addition pipe 42 is fixedly snapped into the upper surface of the snap-fit ​​circular plate 41 at the edge of the chemical addition hole. The rotating cylinder 45 is rotatably connected to the rotating cylinder 45 via a bearing. The lower end of the rotating cylinder 45 extends into the sewage treatment tank 2. A stirring fan blade 46 is fixedly sleeved on the rotating cylinder 45 at a position inside the sewage treatment tank 2. The upper end of the rotating cylinder 45 extends to the upper side of the snap-fit ​​circular plate 41 and is fixedly connected to the output shaft of the rotating motor 44. A motor mounting bracket 43 is fixedly connected to the upper surface of the snap-fit ​​circular plate 41 at a position on the edge of the rotating cylinder 45. The motor mounting bracket 43 is fixedly connected to the rotating motor 44. The input end of the rotating motor 44 is electrically connected to the output end of an external power supply through an external control switch group.

[0037] The snap-fit ​​circular plate 41 is used to fix the chemical addition pipe 42, which is used to add chemicals into the sewage treatment tank 2 to facilitate sedimentation. The motor fixing bracket 43 is used to fix the rotating motor 44. When the rotating motor 44 is started, it drives the rotating cylinder 45 to rotate. The rotation of the rotating cylinder 45 drives the stirring blade 46 to rotate. The stirring blade 46 is used to stir the sewage to make the chemicals and sewage mix more evenly, so as to facilitate sedimentation.

[0038] The mixing unit 4 also includes a circular sealing plate 47. A sediment cleaning hole is provided on the lower surface of the sewage treatment tank 2. The sediment cleaning hole extends into the sewage treatment tank 2 and is fixedly connected to the circular sealing plate 47 by bolts.

[0039] The circular sealing plate 47 is used to seal and fix the sewage treatment tank 2, so as to facilitate the sedimentation of sewage. When sedimentation is not in progress, it is also convenient to collect the sediment for easy use.

[0040] It also includes a sediment collection frame 5, and a sediment collection frame 5 is fixedly connected to the upper surface of the sewage treatment tank fixing frame 1 at the corresponding position of the circular sealing fixing plate 47.

[0041] The precipitate collection frame 5 is used to collect the heavy metal ion precipitate after precipitation, so as to facilitate recycling.

[0042] The working principle of the chemical heavy metal ion wastewater treatment equipment provided by this utility model is as follows: First, a circular plate 41 is used to fix a chemical addition pipe 42, which allows chemicals to be added into the wastewater treatment tank 2 for sedimentation. A motor mounting bracket 43 is used to fix a rotating motor 44. When the rotating motor 44 is started, it drives a rotating cylinder 45 to rotate, which in turn drives a stirring blade 46 to rotate. The stirring blade 46 stirs the wastewater to make the chemicals and wastewater mix more evenly. A circular sealing plate 47 is used to seal and fix the wastewater treatment tank 2 to facilitate sedimentation. When sedimentation is not in progress, it is also convenient to collect the sediment for sedimentation to remove heavy metal impurities. Then, a support plate 31 is used to fix a fixing shell 32, which in turn fixes an activated carbon filter block 33. The activated carbon filter block 33 is used to filter the wastewater. Impurities are filtered to remove heavy metal ions for ease of use. Connecting plate 34 is used to fix activated carbon filter block 33 for easy replacement. Pull handle 35 allows for easy movement of connecting plate 34. Filter screen fixing cover 36 fixes filter screen 37, which filters wastewater to prevent impurities from flowing into the water pump 310 and affecting its operation. Water outlet pipe 38 allows filtered water to flow into the water pump 310. Water pump fixing seat 39 fixes the water pump 310, which provides power for wastewater flow upon startup. External connecting pipe 311 allows purified water to flow externally for impurity removal and wastewater flow. Finally, sediment collection frame 5 collects the settled heavy metal ion precipitate for use.

[0043] It is worth noting that the core chip of the external control switch group disclosed in the above embodiments is a PLC microcontroller, the rotating motor 44 is a servo motor, and the external control switch group controls the operation of the water pump 310 and the rotating motor 44 using methods commonly used in the prior art.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A wastewater treatment device for heavy metal ions in chemical industries, characterized in that: Includes a wastewater treatment tank fixing frame (1), a heavy metal ion purification and filtration unit (3), and a stirring and mixing unit (4). Wastewater treatment tank fixing frame (1): A wastewater treatment tank (2) is fixedly attached to the upper part. The wastewater treatment tank (2) is equipped with a stirring and mixing unit (4). The wastewater treatment tank (2) is provided with a wastewater inlet hole. A circular pipe is provided on the outer surface of the wastewater treatment tank (2) at the edge of the wastewater inlet hole. A wastewater outlet hole is provided on the side of the wastewater treatment tank (2) away from the circular pipe. One end of a circular pipe is fixedly connected to the edge of the wastewater outlet hole on the outer surface of the wastewater treatment tank (2). Heavy metal ion purification and filtration unit (3): includes a support plate (31), a fixed shell (32), an activated carbon filter block (33), a connecting plate (34), and a pull handle (35). A support plate (31) is fixedly connected to the right surface of the support rod on the right side of the sewage treatment tank (2) on the sewage treatment tank fixing frame (1). A fixed shell (32) is fixedly connected to the support plate (31). The other end of the circular pipe II extends into the corresponding fixed shell (32). A water outlet is provided on the right side surface of the fixed shell (32), and a rectangular hole is provided on the upper surface of the fixed shell (32). The rectangular hole extends into the fixed shell (32), and a connecting plate (34) is fixedly attached inside the rectangular hole. The upper surface of the connecting plate (34) is movably connected to the pull handle (35) through a movable pin. A carbon filter block (33) is fixedly attached inside the fixed shell (32), and the upper surface of the carbon filter block (33) is fixedly connected to the lower surface of the corresponding connecting plate (34).

2. The chemical heavy metal ion wastewater treatment equipment according to claim 1, characterized in that: The heavy metal ion purification and filtration unit (3) also includes a filter screen fixing cover (36), a filter screen (37) and a water outlet pipe (38). A filter screen fixing cover (36) is fixedly connected to the right side surface of the fixing shell (32) at the edge of the water outlet hole. A filter screen (37) is fixedly snapped into the filter screen fixing cover (36). A round hole is opened on the right side surface of the filter screen fixing cover (36). The round hole extends into the filter screen fixing cover (36). One end of the water outlet pipe (38) is fixedly connected to the right side surface of the filter screen fixing cover (36) at the edge of the round hole.

3. The chemical heavy metal ion wastewater treatment equipment according to claim 2, characterized in that: The heavy metal ion purification and filtration unit (3) also includes a water pump mounting base (39), a water pump (310), and an external connecting pipe (311). A water pump mounting base (39) is fixedly connected to the rear surface of the fixed shell (32). A water pump (310) is fixedly connected to the water pump mounting base (39). The other end of the water outlet pipe (38) is fixedly connected to the water inlet on the water pump (310). The water outlet on the water pump (310) is fixedly connected to the external connecting pipe (311). The input end of the water pump (310) is electrically connected to the output end of the external power supply through an external control switch group.

4. The chemical heavy metal ion wastewater treatment equipment according to claim 1, characterized in that: The mixing unit (4) includes a snap-fit ​​circular plate (41), a chemical addition pipe (42), a motor mounting bracket (43), a rotating motor (44), a rotating cylinder (45), and a stirring fan blade (46). A limiting circular hole is formed on the upper surface of the wastewater treatment tank (2), extending into the wastewater treatment tank (2). A snap-fit ​​circular plate (41) is fixedly snapped into the limiting circular hole. A chemical addition hole is formed on the upper surface of the snap-fit ​​circular plate (41), penetrating both the upper and lower sides of the snap-fit ​​circular plate (41). A chemical addition pipe (42) is fixedly snapped into the upper surface of the snap-fit ​​circular plate (41) at the edge of the chemical addition hole. The rotating cylinder (45) is rotatably connected to the rotating cylinder (45) via a bearing. The lower end of the rotating cylinder (45) extends into the sewage treatment tank (2). A stirring fan blade (46) is fixedly sleeved on the rotating cylinder (45) at a position inside the sewage treatment tank (2). The upper end of the rotating cylinder (45) extends to the upper side of the snap-fit ​​circular plate (41) and is fixedly connected to the output shaft of the rotating motor (44). A motor fixing bracket (43) is fixedly connected to the upper surface of the snap-fit ​​circular plate (41) at a position on the edge of the rotating cylinder (45). The motor fixing bracket (43) is fixedly connected to the rotating motor (44). The input end of the rotating motor (44) is electrically connected to the output end of the external power supply through an external control switch group.

5. The chemical heavy metal ion wastewater treatment equipment according to claim 4, characterized in that: The mixing unit (4) also includes a circular sealing plate (47). The lower surface of the sewage treatment tank (2) is provided with a sediment cleaning hole. The sediment cleaning hole extends into the sewage treatment tank (2). The sediment cleaning hole is fixedly connected to the circular sealing plate (47) by bolts.

6. The chemical heavy metal ion wastewater treatment equipment according to claim 5, characterized in that: It also includes a sediment collection frame (5), and a sediment collection frame (5) is fixedly connected to the upper surface of the sewage treatment tank fixing frame (1) at the corresponding position of the circular sealing fixing plate (47).

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