Electric flocculation equipment for treating wastewater

Abstract

The invention discloses electric flocculation equipment for wastewater treatment, and particularly relates to the technical field of wastewater treatment equipment.The electric flocculation equipment comprises a shell, a supporting frame is fixedly connected to the left portion of the lower end of the shell, supporting legs are fixedly connected to the front side and the rear side of the right portion of the lower end of the shell, and an inner container is fixedly connected to the inner surface of the shell; a concave plate is fixedly connected to the upper side of the middle of the left end of the shell and the upper side of the middle of the right end of the shell jointly, an aeration pump is fixedly connected to the left side of the upper end of the concave plate, an aeration assembly is arranged in an inner cavity of the inner container, an adjusting assembly is slidably installed at the rear end of the shell, and a sludge receiving assembly is fixedly installed at the lower end of the inner container. And the lower part of the inner surface of the inner container is fixedly connected with a flocculator. According to the electric flocculation equipment for treating the wastewater, the aeration assembly is arranged and matched with the aeration pump, and an aeration effect can be generated in the process that the flocculator performs electric flocculation processing on sewage, so that the flocculation effect is improved, the pollutant removal efficiency is improved, and the water quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment equipment, and in particular to an electric flocculation device for treating wastewater. Background Art

[0002] The electrocoagulation equipment is a device that uses electrochemical principles to purify wastewater. Its core components include reactors, electrode systems, and power supply devices. The reactor provides sufficient space for wastewater treatment and is usually made of corrosion-resistant materials to ensure the service life of the equipment. The electrode system consists of an anode and a cathode. The anode is mostly made of metal materials such as iron and aluminum. After the power supply device provides direct current, the anode metal loses electrons and dissolves to produce metal cations, such as iron ions or aluminum ions. These cations will combine with hydroxide ions in the water to form flocs with strong adsorption.

[0003] Chinese patent announcement number CN208762208U discloses a device for treating wastewater by electro-flocculation, comprising a hollow tank body, wherein a first vertical baffle and a second vertical baffle are provided in the tank body, wherein the first vertical baffle and the second vertical baffle divide the inner cavity of the tank body into a water inlet cavity, a reaction cavity and a discharge cavity, wherein a gap is left between the bottom of the first vertical baffle and the bottom of the tank body, and the height of the top of the second vertical baffle is lower than the height of the top of the first vertical baffle, and a water inlet connected to the water inlet cavity and a water outlet connected to the discharge cavity are provided on the side wall of the tank body; a vertical anode plate and a vertical cathode plate are provided in the reaction cavity, and a gap is left between the vertical anode plate, the vertical cathode plate, the vertical induction electrode plate and the bottom surface of the reaction cavity; and a slag discharge port is provided on the bottom side of the discharge cavity. The above patent document has a simple structure, convenient operation, high degree of automation, low cost, small amount of sludge produced, good flocculation effect, and good removal effect for insoluble high molecular organic matter.

[0004] Although the equipment in the above patent document can perform electro-flocculation processing on wastewater during use, it cannot form larger flocs during actual use and cannot vibrate the reactor surface, thereby reducing the overall flocculation effect. Summary of the invention

[0005] The main purpose of the present invention is to provide an electric flocculation device for treating wastewater, which can effectively solve the problem that in actual use, larger flocs cannot be formed and the reactor surface cannot be vibrated, thereby reducing the overall flocculation effect.

[0006] To achieve the above object, the technical solution adopted by the present invention is: An electric flocculation device for treating wastewater comprises a shell, a support frame is fixedly connected to the left portion of the lower end of the shell, support legs are fixedly connected to the front and rear sides of the right portion of the lower end of the shell, an inner tank is fixedly connected to the inner surface of the shell, a concave plate is fixedly connected to the upper middle side of the left end and the upper middle side of the right end of the shell, an aeration pump is fixedly connected to the left side of the upper end of the concave plate, an aeration assembly is provided in the inner cavity of the inner tank, an adjustment assembly is slidably installed on the rear end of the shell, a sludge receiving assembly is fixedly installed at the lower end of the inner tank, and a flocculator is fixedly connected to the lower part of the inner surface of the inner tank.

[0007] Preferably, a storage groove is provided at the upper end of the shell, a mounting hole communicating with the inner cavity of the storage groove is provided at the right corner of the rear end of the shell, a discharge pipe is fixedly connected to the inner surface of the mounting hole, a threaded plug is threadedly connected to the inner surface of the discharge pipe, and a rectangular groove is provided in the middle of the rear end of the shell, which passes through the storage groove and extends to the inner surface of the shell.

[0008] Preferably, a fixing groove is provided on the right side of the bottom wall of the inner liner, and a rectangular groove 2 is provided in the middle of the rear end of the inner liner and penetrates the inner surface of the inner liner.

[0009] Preferably, the rectangular groove one and the rectangular groove two are aligned front to back.

[0010] Preferably, the aeration assembly includes an air injection pipe 1, the upper end of which passes through the concave plate and is fixedly connected to the output end of the aeration pump, the lower end of which is fixedly connected to a semicircular shell 1, the lower end of which is fixedly connected to an air injection pipe 2, the lower end of which is fixedly connected to a semicircular shell 2, the semicircular shell 1 and the semicircular shell 2 are symmetrically distributed up and down, and a plurality of aeration holes are provided on the side where the semicircular shell 2 and the semicircular shell 1 are close to each other.

[0011] Preferably, the linear array on one side where the semicircular shell 1 and the semicircular shell 2 are close to each other is commonly fixedly connected with four connecting ropes, and the middle parts of the outer surfaces of the four connecting ropes are fixedly connected with rubber balls.

[0012] Preferably, the inner cavity of the gas injection tube 1 is communicated with the inner cavity of the semicircular shell 1, and the inner cavity of the gas injection tube 2 is communicated with the inner cavity of the semicircular shell 1 and the inner cavity of the semicircular shell 2 respectively.

[0013] Preferably, the adjustment component includes a hollow slider, which is slidably connected to the inner cavities of the rectangular groove one and the rectangular groove two, the front and rear portions of the outer surface of the hollow slider are fixedly connected to rectangular plates, the inner cavity of the hollow slider is fixedly connected to a drain pipe, and the rear portion of the inner surface of the drain pipe is threadedly connected to a threaded plug two.

[0014] Preferably, the rear end of the rectangular plate at the front is in contact with the inner surface of the liner, and the front end of the rectangular plate at the rear is in contact with the rear end of the shell.

[0015] Preferably, the sludge receiving component includes a trapezoidal shell, which is fixedly connected to the inner cavity of the fixed groove, a trapezoidal groove is provided at the upper end of the trapezoidal shell, a silt outlet is provided on the lower side of the rear end of the trapezoidal shell, a silt outlet is fixedly connected to the inner surface of the silt outlet with a silt discharge pipe, a threaded plug is threadedly connected to the rear part of the inner surface of the silt discharge pipe, and the trapezoidal groove is arranged in an inclined shape.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention cooperates with an aeration pump by setting an aeration component, which can produce an aeration effect during the process of electro-flocculation of sewage in the flocculator, thereby improving the flocculation effect, increasing the pollutant removal efficiency, and improving the water quality. The aeration component can also vibrate the surface of the flocculator while producing the aeration effect, thereby causing particles in the wastewater to collide and aggregate to form larger floccules, thereby improving the efficiency of electro-flocculation. The present invention can manually adjust the position of the clean water layer through the adjustment component, and then discharge the clean water. In the adjustment process, leakage of clean water can be avoided. At the same time, the sludge receiving component can be used to receive the sludge generated during the electric flocculation process. After the electric flocculation process is completed, when the sewage is left to settle, the sludge can always gather at the bottom of the sludge receiving component to facilitate the subsequent discharge of the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation position of the aeration assembly of the present invention; Figure 3 It is a schematic diagram of the installation position of the sludge receiving assembly and the flocculator of the present invention; Figure 4 This is a schematic diagram of the installation position of the inner container of the present invention; Figure 5 It is a schematic diagram of the opening position of the storage slot and the rectangular slot of the present invention; Figure 6 It is a schematic diagram of the positions of the fixed groove and the second rectangular groove of the present invention; Figure 7 It is a schematic diagram of the structure of the regulating component of the present invention; Figure 8 It is a schematic diagram of the structure of the sludge receiving assembly of the present invention; Fig. 9 It is a schematic diagram of the structure of the aeration assembly of the present invention; Fig.10 For the present invention Figure 4 A schematic diagram of the enlarged structure in the middle.

[0018] In the figure: 1. outer shell; 100. storage tank; 101. mounting hole; 102. discharge pipe; 103. threaded plug one; 104. rectangular slot one; 2. support frame; 21. support leg; 3. liner; 31. fixing slot; 32. rectangular slot two; 4. concave plate; 5. aeration pump; 6. aeration assembly; 61. air injection pipe one; 62. semicircular shell one; 63. air injection pipe two; 64. semicircular shell two; 65. aeration hole; 66. connecting rope; 67. rubber ball; 7. adjustment assembly; 71. hollow slider; 72. rectangular plate; 73. drain pipe; 74. threaded plug two; 8. sludge receiving assembly; 81. trapezoidal shell; 82. trapezoidal slot; 83. silt outlet; 84. silt discharge pipe; 85. threaded plug three; 9. flocculator. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] Embodiment 1, as Figure 1 , Figure 2 and Figure 3 As shown, an electric flocculation device for treating wastewater comprises a shell 1, a support frame 2 is fixedly connected to the left portion of the lower end of the shell 1, a support leg 21 is fixedly connected to the front and rear sides of the right portion of the lower end of the shell 1, an inner tank 3 is fixedly connected to the inner surface of the shell 1, a concave plate 4 is fixedly connected to the upper side of the middle of the left end and the upper side of the middle of the right end of the shell 1, an aeration pump 5 is fixedly connected to the left side of the upper end of the concave plate 4, and an aeration component 6 is provided in the inner cavity of the inner tank 3. The aeration component 6 cooperates with the aeration pump 5 to produce an aeration effect during the process of the flocculator 9 performing electric flocculation on the sewage, thereby improving the flocculation effect, improving the pollutant removal efficiency, and improving the water quality. In addition, the aeration component 6 can also vibrate the surface of the flocculator 9 while producing the aeration effect, so as to cause the particles in the wastewater to collide and aggregate to form larger floccules, thereby improving the efficiency of the electric flocculation. An adjusting component 7 is slidably mounted at the rear end of the housing 1. Through the adjusting component 7, manual adjustment can be performed according to the position of the clean water layer, and then the clean water can be discharged. In the adjustment process, leakage of clean water can be avoided. A sludge receiving assembly 8 is fixedly installed at the lower end of the inner tank 3. The sludge receiving assembly 8 can receive the sludge generated during the electro-flocculation process. After the electro-flocculation process is completed, when the sewage is allowed to settle, the sludge can always gather at the bottom of the sludge receiving assembly 8, so that the sludge can be discharged later. A flocculator 9 is fixedly connected to the lower portion of the inner surface of the inner tank 3 .

[0021] The flocculator 9 mentioned above is a conventional device in the prior art, and its specific working principle is as follows: Electrode reaction: When the device is connected to direct current, an oxidation reaction occurs at the anode. Usually, aluminum, iron and other metals are used as anode materials. For example, aluminum anodes lose electrons and become aluminum ions that enter the solution. A reduction reaction occurs at the cathode, where the hydrogen ions in the water gain electrons and generate hydrogen gas. Flocculation precipitation: The metal ions produced by the anode will undergo a series of hydrolysis reactions in the water to form a variety of hydroxyl complexes. These complexes have strong adsorption capacity and can adsorb, bridge and capture pollutants such as colloids, suspended matter, organic matter and heavy metal ions in the wastewater, causing the pollutants to gradually aggregate and form larger flocs. As the flocs continue to grow, their gravity exceeds their buoyancy and they settle to the bottom of the equipment, thus achieving solid-liquid separation and removing pollutants from the wastewater. Flotation separation: The hydrogen produced by the cathode escapes in the form of tiny bubbles. These bubbles will attach to the flocs during the rising process, making the overall density of the flocs less than that of water, so that they float to the water surface and form scum; During the electrocoagulation process, the new ecological substances produced by the electrode reaction are highly oxidizing and can oxidize and decompose some organic pollutants. At the same time, the existence of the electric field can also change the properties and structure of some pollutants, improving their flocculation and separability.

[0022] Therefore, the flocculator 9 mentioned above is a conventional setting in the prior art, and its specific installation method, circuit connection method and control method are all conventional designs, which will not be elaborated in detail in this solution.

[0023] Embodiment 2: Based on Embodiment 1, this embodiment aims to increase the probability of collision between particles in wastewater during the electro-flocculation process, thereby promoting the formation of flocs.

[0024] For details, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 8 and Fig. 9 A storage slot 100 is provided at the upper end of the shell 1, a mounting hole 101 communicating with the inner cavity of the storage slot 100 is provided at the right corner of the rear end of the shell 1, a discharge pipe 102 is fixedly connected to the inner surface of the mounting hole 101, a threaded plug 103 is threadedly connected to the inner surface of the discharge pipe 102, and a rectangular slot 104 is provided in the middle of the rear end of the shell 1, which penetrates the storage slot 100 and extends to the inner surface of the shell 1.

[0025] Furthermore, a fixing groove 31 is provided on the right side of the bottom wall of the inner liner 3 , and a rectangular groove 32 penetrating through the inner surface of the inner liner 3 is provided in the middle of the rear end of the inner liner 3 .

[0026] Furthermore, the aeration assembly 6 includes an air injection pipe 61, the upper end of which passes through the concave plate 4 and is fixedly connected to the output end of the aeration pump 5, the lower end of the air injection pipe 61 is fixedly connected to a semicircular shell 62, the lower end of the semicircular shell 62 is fixedly connected to an air injection pipe 63, and the lower end of the air injection pipe 63 is fixedly connected to a semicircular shell 64. The semicircular shell 1 62 and the semicircular shell 2 64 are symmetrically distributed in the upper and lower parts, and a plurality of aeration holes 65 are provided on the side where the semicircular shell 2 64 and the semicircular shell 1 62 are close to each other.

[0027] Furthermore, the linear array on one side of the semicircular shell 1 62 and the semicircular shell 2 64 close to each other is fixedly connected with four connecting ropes 66 , and the middle of the outer surface of the four connecting ropes 66 is fixedly connected with a rubber ball 67 .

[0028] Furthermore, the inner cavity of the gas injection pipe 1 61 is communicated with the inner cavity of the semicircular shell 1 62 , and the inner cavity of the gas injection pipe 2 63 is communicated with the inner cavity of the semicircular shell 1 62 and the inner cavity of the semicircular shell 2 64 respectively.

[0029] Furthermore, the sludge receiving assembly 8 includes a trapezoidal shell 81, which is fixedly connected to the inner cavity of the fixed groove 31, a trapezoidal groove 82 is opened at the upper end of the trapezoidal shell 81, a silt outlet 83 is opened on the lower side of the rear end of the trapezoidal shell 81, a silt outlet 83 is fixedly connected to the inner surface of the silt outlet 83, a threaded plug 85 is threadedly connected to the rear part of the inner surface of the silt outlet 83, and the trapezoidal groove 82 is arranged in an inclined shape.

[0030] As can be seen from the above, the flocculator 9 can be used to perform the electro-flocculation process on the wastewater. When the electro-flocculation process is performed on the wastewater, the aeration pump 5 can be started so that the aeration pump 5 draws external gas into the gas injection pipe 61. As can be seen from the above, the inner cavity of the gas injection pipe 1 61 is connected with the inner cavity of the semicircular shell 1 62, and the inner cavity of the gas injection pipe 2 63 is connected with the inner cavities of the semicircular shell 1 62 and the semicircular shell 2 64 respectively. Therefore, after the gas enters the gas injection pipe 1 61, the gas can continuously enter the semicircular shell 1 62, and part of the gas can also enter the gas injection pipe 2 63 from the semicircular shell 1 62, and then enter the semicircular shell 2 64, and the gas in the semicircular shell 1 62 and the semicircular shell 2 64 will be ejected from the aeration holes 65 opened on their outer surfaces, and when the gas is ejected, an aeration effect will be generated. The bubbles and turbulence generated by aeration can increase the collision probability between particles in the wastewater, thereby promoting the formation of flocs, and the bubbles will carry fine particles in the process of rising, making it easier to combine with the flocs to form larger and denser flocs, thereby improving the sedimentation efficiency; Aeration can increase the dissolved oxygen concentration in wastewater and promote oxidation reactions, especially for the removal of organic matter, heavy metal ions (such as Fe2+, Mn2+) and reducing substances (such as sulfide). During the electro-flocculation process, aeration can not only prevent the formation of a passivation layer on the electrode surface and maintain the efficient reaction activity of the electrode, thereby improving the overall efficiency of electro-flocculation, but also make the distribution of pollutants and flocculants in the wastewater more uniform, further improving the reaction efficiency of electro-flocculation. In addition, aeration can remove volatile organic compounds from wastewater, reducing its pollution to water bodies, and effectively reduce the odor in wastewater by oxidizing and reducing substances such as hydrogen sulfide; More importantly, aeration can accelerate the formation and settling of flocs, thereby shortening the treatment time of electroflocculation and reducing energy consumption; Meanwhile, during the aeration process, the gas will blow the four rubber balls 67. Since the connecting ropes 66 on the inner surfaces of the four rubber balls 67 are fixedly connected to the semicircular shell 1 62 and the semicircular shell 2 64 respectively, and the four rubber balls 67 are respectively located between the anode and cathode of the flocculator 9, when the four rubber balls 67 are blown by the gas, they will hit the anode and cathode of the flocculator 9, thereby causing the flocculator 9 to vibrate. When the flocculator 9 vibrates, the vibration can increase the kinetic energy of the particles in the wastewater, increase the probability of collision between the particles, and accelerate the formation of flocs, and can also make the flocs more compact, thereby increasing their settling speed and separation efficiency; Vibration can not only prevent the deposition of pollutants or the formation of a passivation layer on the electrode surface, but also maintain the efficient reaction activity of the electrode. At the same time, vibration can reduce the deposition and corrosion on the electrode surface, and can significantly extend the service life of the electrode, thereby reducing maintenance costs. In addition, vibration also plays a positive role in improving the mass transfer process of pollutants in wastewater, which helps to improve the efficiency of the electrocoagulation reaction; Especially for certain pollutants, such as heavy metal ions or organic matter, vibration can accelerate their redox reactions on the electrode surface, thereby further improving the removal efficiency; In the process of treating sewage by electro-flocculation, flocs in the sewage will float to the top layer, and then, under the action of aeration, the flocs will always surge upward, and then fall from the top of the inner tank 3 into the storage tank 100 opened at the upper end of the outer shell 1 for storage. When clear water appears in the gushing part, the aeration pump 5 can be stopped, the aeration can be suspended, and then the sewage after electro-flocculation in the device can be left to stand. During the standing process, the sludge will settle downward. As can be seen from the above, the trapezoidal groove 82 is arranged in an inclined shape, so the settled sludge will always gather at the bottom of the trapezoidal groove 82. Therefore, by setting up the aeration component 6, aeration and vibration effects can be added during the process of electroflocculation of sewage, so that the particles in the sewage are more easily combined with the flocs to form larger and denser flocs, thereby improving the sedimentation efficiency. In addition, vibration can increase the kinetic energy of the particles in the wastewater and increase the probability of collision between particles, thereby accelerating the formation of flocs. It can also make the flocs denser and improve their sedimentation rate and separation efficiency.

[0031] Embodiment 3: This embodiment is based on Embodiment 2 and is for the purpose of cleaning the precipitated sludge and flocs.

[0032] For details, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 and Fig.10 The adjusting assembly 7 includes a hollow slider 71, which is slidably connected to the inner cavities of the rectangular groove 104 and the rectangular groove 2 32. The front and rear portions of the outer surface of the hollow slider 71 are fixedly connected to a rectangular plate 72. The inner cavity of the hollow slider 71 is fixedly connected to a drain pipe 73, and the rear portion of the inner surface of the drain pipe 73 is threadedly connected to a threaded plug 2 74.

[0033] Furthermore, the rear end of the front rectangular plate 72 fits with the inner surface of the liner 3 , and the front end of the rear rectangular plate 72 fits with the rear end of the shell 1 .

[0034] Furthermore, the first rectangular groove 104 and the second rectangular groove 32 are aligned front and back.

[0035] When aeration is stopped, the sewage treated by electro-flocculation is left to stand for a period of time. A small amount of floccules will appear on the top layer of the sewage, the middle layer is clear water, and the bottom layer is sludge after sedimentation. To drain the clean water separately, see Figure 4 , 5 , 6 and Fig.10 In this embodiment, since the rectangular groove 1 104 and the rectangular groove 2 32 are aligned front to back, and the hollow slider 71 is slidably connected to the inner cavities of the rectangular groove 1 104 and the rectangular groove 2 32, the hollow slider 71 can move downward in the rectangular groove 1 104 and the rectangular groove 2 32 until the hollow slider 71 drives the drain pipe 73 fixedly connected to its inner surface to move to the lowest layer of clean water. As can be seen from the above, the rear end of the front rectangular plate 72 fits with the inner surface of the liner 3, and the front end of the rear rectangular plate 72 fits with the rear end of the shell 1. Therefore, when the hollow slider 71 moves, the rectangular plates 72 on both sides can always keep the rectangular groove 2 32 and the rectangular groove 1 104 in a sealed state; In order to achieve good sealing, the present invention can also add rubber pads on the surfaces of the rectangular plates 72 on both sides, thereby further improving the overall sealing; When the drain pipe 73 is moved to the lower side of the clean water layer, the second threaded plug 74 can be rotated to open so that the clean water can be discharged from the drain pipe 73. When floccules appear during the discharge, the second threaded plug 74 needs to be rotated to close, and then a small amount of floccules on the surface of the clean water can be removed. When the clean water is completely discharged, the sludge and the remaining floccules can be discharged from the sludge discharge pipe 84 by simply opening the threaded plug 3 85. Therefore, the purpose of discharging the clean water, floccules and sludge produced after the electric flocculation in a zoned manner can be achieved by setting the regulating component 7 and the sludge receiving component 8.

[0036] The aeration pump 5 mentioned above is a conventional setting in the prior art, and its specific working principle is as follows: Power input: Usually, a power source is provided by an electric motor, an engine, etc., which provides energy support for the operation of the aeration pump 5, so that the impeller or other moving parts of the aeration pump 5 can move at a set speed and mode; Gas Inhalation: Under the power drive, the impeller of the aeration pump 5 rotates rapidly; When the impeller rotates, a low-pressure area is formed in the pump housing. Due to the atmospheric pressure, the outside air is pressed into the pump and enters the internal cavity of the aeration pump 5 through the air inlet; Gas pressurization and transmission: The air entering the pump gains energy under the action of the impeller. The blades of the impeller push the air, increasing the speed and pressure of the air. The pressurized air flows along the flow channel in the pump casing and is discharged from the outlet.

[0037] Therefore, the aeration pump 5 mentioned above is of conventional design in the prior art, and its specific installation method, circuit connection method and control method are all of conventional design, which will not be elaborated in detail in this solution.

[0038] The rubber pad mentioned above is a conventional setting in the prior art. In this solution, it is only necessary to increase the sealing between the two rectangular plates 72 and the rectangular groove 2 32 and the rectangular groove 1 104 respectively, so this solution will not elaborate on it in detail.

[0039] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An electrocoagulation device for treating wastewater, comprising a housing (1), characterized in that: The left portion of the lower end of the shell (1) is fixedly connected to a support frame (2), the front and rear sides of the right portion of the lower end of the shell (1) are fixedly connected to support legs (21), the inner surface of the shell (1) is fixedly connected to an inner liner (3), the upper middle side of the left end and the upper middle side of the right end of the shell (1) are fixedly connected to a concave plate (4), the upper left side of the concave plate (4) is fixedly connected to an aeration pump (5), the inner cavity of the inner liner (3) is provided with an aeration component (6), the rear end of the shell (1) is slidably mounted with an adjustment component (7), the lower end of the inner liner (3) is fixedly mounted with a sludge receiving component (8), and the lower portion of the inner surface of the inner liner (3) is fixedly connected to a flocculator (9); The aeration assembly (6) comprises an air injection pipe (61), the upper end of which passes through the concave plate (4) and is fixedly connected to the output end of the aeration pump (5); the lower end of the air injection pipe (61) is fixedly connected to a semicircular shell (62); the lower end of the semicircular shell (62) is fixedly connected to an air injection pipe (63); the lower end of the air injection pipe (63) is fixedly connected to a semicircular shell (64); the semicircular shell (62) and the semicircular shell (64) are symmetrically distributed in the upper and lower parts; and a plurality of aeration holes (65) are provided on the side of the semicircular shell (64) and the semicircular shell (62) that is close to each other. The semicircular shell 1 (62) and the semicircular shell 2 (64) are fixedly connected to a linear array on one side close to each other by four connecting ropes (66), and the middle parts of the outer surfaces of the four connecting ropes (66) are fixedly connected to rubber balls (67); The inner cavity of the gas injection pipe 1 (61) is in communication with the inner cavity of the semicircular shell 1 (62), and the inner cavity of the gas injection pipe 2 (63) is in communication with the inner cavities of the semicircular shell 1 (62) and the semicircular shell 2 (64), respectively.

2. The electrocoagulation device for treating wastewater according to claim 1, characterized in that: A storage groove (100) is provided at the upper end of the shell (1); a mounting hole (101) communicating with the inner cavity of the storage groove (100) is provided at the right corner of the rear end of the shell (1); a discharge pipe (102) is fixedly connected to the inner surface of the mounting hole (101); a threaded plug (103) is threadedly connected to the inner surface of the discharge pipe (102); and a rectangular groove (104) penetrating the storage groove (100) and extending to the inner surface of the shell (1) is provided in the middle of the rear end of the shell (1).

3. The electrocoagulation device for treating wastewater according to claim 2, characterized in that: A fixing groove (31) is provided on the right side of the bottom wall of the inner liner (3), and a second rectangular groove (32) penetrating the inner surface of the inner liner (3) is provided in the middle of the rear end of the inner liner (3).

4. The electrocoagulation device for treating wastewater according to claim 3, characterized in that: The rectangular groove one (104) and the rectangular groove two (32) are aligned front and back.

5. The electrocoagulation device for treating wastewater according to claim 4, characterized in that: The adjustment assembly (7) comprises a hollow slider (71), the hollow slider (71) being slidably connected to the inner cavities of the rectangular groove 1 (104) and the rectangular groove 2 (32), the front and rear portions of the outer surface of the hollow slider (71) being fixedly connected to a rectangular plate (72), the inner cavity of the hollow slider (71) being fixedly connected to a drain pipe (73), and the rear portion of the inner surface of the drain pipe (73) being threadedly connected to a threaded plug 2 (74).

6. The electrocoagulation device for treating wastewater according to claim 5, characterized in that: The rear end of the rectangular plate (72) located at the front is in contact with the inner surface of the inner container (3), and the front end of the rectangular plate (72) located at the rear is in contact with the rear end of the outer shell (1).

7. The electrocoagulation device for treating wastewater according to claim 3, characterized in that: The sludge receiving assembly (8) comprises a trapezoidal shell (81), the trapezoidal shell (81) being fixedly connected to the inner cavity of the fixed groove (31), the upper end of the trapezoidal shell (81) being provided with a trapezoidal groove (82), the lower side of the rear end of the trapezoidal shell (81) being provided with a sludge outlet (83), the inner surface of the sludge outlet (83) being fixedly connected with a sludge discharge pipe (84), the rear part of the inner surface of the sludge discharge pipe (84) being threadedly connected with a threaded plug (85), and the trapezoidal groove (82) being arranged in an inclined shape.

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