An electrocoagulation device for treating wastewater

Abstract

The present invention discloses an electrocoagulation device for treating wastewater, specifically relating to the technical field of wastewater treatment equipment. It includes a housing. The left part of the lower end of the housing is fixedly connected with a support frame. The front side and the rear side of the right part of the lower end of the housing are both fixedly connected with support legs. The inner surface of the housing is fixedly connected with an inner tank. The upper sides of the middle parts of the left end and the right end of the housing are jointly fixedly connected with a concave plate. The left side of the upper end of the concave plate is fixedly connected with an aeration pump. An aeration assembly is arranged in the inner cavity of the inner tank. An adjusting assembly is slidably installed at the rear end of the housing. A sludge receiving assembly is fixedly installed at the lower end of the inner tank. A flocculator is fixedly connected to the lower part of the inner surface of the inner tank. For the electrocoagulation device for treating wastewater of the present invention, through the arranged aeration assembly, in cooperation with the aeration pump, an aeration effect can be generated during the electrocoagulation process of the sewage by the flocculator, thereby improving the flocculation effect, increasing the pollutant removal efficiency, and improving the water quality.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment equipment, and particularly relates to an electrocoagulation equipment for treating wastewater. Background Art

[0002] An electrocoagulation equipment is a device that uses the electrochemical principle to purify wastewater. Its core components include a reactor, an electrode system, and a power supply device;

[0003] 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 mostly uses metal materials such as iron and aluminum. After the power supply device provides direct current, the anode metal loses electrons and dissolves, generating 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.

[0004] Chinese Patent Publication No. CN208762208U discloses a device for electrocoagulation treatment of wastewater, including a hollow tank body. A first vertical baffle and a second vertical baffle are arranged in the tank body. 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. There is a gap between the bottom of the first vertical baffle and the bottom of the tank body. The height of the top of the second vertical baffle is lower than the height of the top of the first vertical baffle. An inlet for communicating with the water inlet cavity and an outlet for communicating with the discharge cavity are arranged on the side wall of the tank body; Oppositely arranged vertical anode plates and vertical cathode plates are arranged in the reaction cavity. There are gaps between the vertical anode plates, the vertical cathode plates, and the vertical induction electrode plates and the bottom surface of the reaction cavity; A slag discharge port is arranged at the bottom side of the discharge cavity. The above patent literature has a simple structure, convenient operation, high automation degree, low cost, small amount of sludge generated, good flocculation effect, and good removal effect on non-dissolved macromolecular organic matter.

[0005] During the use of the equipment in the above patent literature, although it can achieve the effect of electrocoagulation processing of wastewater, in actual use, it is impossible to form larger flocs, and at the same time, it is impossible to vibrate the surface of the reactor, thereby reducing the overall flocculation effect. Summary of the Invention

[0006] The main purpose of the present invention is to provide an electrocoagulation equipment for treating wastewater, which can effectively solve the problem that in the actual use process, it is impossible to form larger flocs, and at the same time, it is impossible to vibrate the surface of the reactor, thereby reducing the overall flocculation effect.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is:

[0008] An electrocoagulation device for treating wastewater, comprising a housing. A support frame is fixedly connected to the left part of the lower end of the housing. Support legs are fixedly connected to the front side and the rear side of the right part of the lower end of the housing. An inner tank is fixedly connected to the inner surface of the housing. A concave plate is fixedly connected to the upper sides of the middle parts of the left end and the right end of the housing. An aeration pump is fixedly connected to the upper left side of the concave plate. An aeration assembly is arranged in the inner cavity of the inner tank. An adjusting assembly is slidably installed at the rear end of the housing. A sludge receiving assembly is fixedly installed at the lower end of the inner tank. A flocculator is fixedly connected to the lower part of the inner surface of the inner tank.

[0009] Preferably, a storage tank is opened at the upper end of the housing. An installation hole communicating with the inner cavity of the storage tank is opened at the right-angled corner of the rear end of the housing. A discharge pipe is fixedly connected to the inner surface of the installation hole. A first threaded plug is threadedly connected to the inner surface of the discharge pipe. A first rectangular groove penetrating through the storage tank and extending to the inner surface of the housing is opened in the middle of the rear end of the housing.

[0010] Preferably, a fixing groove is opened on the right side of the bottom wall of the inner tank. A second rectangular groove penetrating through the inner surface of the inner tank is opened in the middle of the rear end of the inner tank.

[0011] Preferably, the first rectangular groove and the second rectangular groove are distributed in front-back alignment.

[0012] Preferably, the aeration assembly includes a first injection pipe. The upper end of the first injection pipe penetrates through the concave plate and is fixedly connected to the output end of the aeration pump. The lower end of the first injection pipe is fixedly connected to a first semi-circular shell. The lower end of the first semi-circular shell is fixedly connected to a second injection pipe. The lower end of the second injection pipe is fixedly connected to a second semi-circular shell. The first semi-circular shell and the second semi-circular shell are symmetrically distributed up and down. A plurality of aeration holes are opened on the sides of the first semi-circular shell and the second semi-circular shell close to each other.

[0013] Preferably, four connecting ropes are fixedly connected to the sides of the first semi-circular shell and the second semi-circular shell close to each other in a linear array. Rubber balls are fixedly connected to the middle parts of the outer surfaces of the four connecting ropes.

[0014] Preferably, the inner cavity of the first injection pipe is communicated with the inner cavity of the first semi-circular shell. The inner cavity of the second injection pipe is communicated with the inner cavities of the first semi-circular shell and the second semi-circular shell respectively.

[0015] Preferably, the adjusting assembly includes a hollow slider. The hollow slider is slidably connected to the inner cavities of the first rectangular groove and the second rectangular groove. Rectangular plates are fixedly connected to the front part and the rear part of the outer surface of the hollow slider. A drain pipe is fixedly connected to the inner cavity of the hollow slider. A second threaded plug is threadedly connected to the rear part of the inner surface of the drain pipe.

[0016] Preferably, the rear end of the rectangular plate at the front part fits with the inner surface of the inner tank, and the front end of the rectangular plate at the rear part fits with the rear end of the outer shell.

[0017] Preferably, the sludge receiving assembly includes a trapezoidal shell fixedly connected to the inner cavity of the fixed groove. A trapezoidal groove is formed at the upper end of the trapezoidal shell, and a sludge outlet is formed at the lower side of the rear end of the trapezoidal shell. A sludge discharge pipe is fixedly connected to the inner surface of the sludge outlet, and a third threaded plug is threadedly connected to the rear part of the inner surface of the sludge discharge pipe. The trapezoidal groove is inclined.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] Through the cooperation of the aeration assembly and the aeration pump provided in the present invention, an aeration effect can be generated during the electrocoagulation process of the flocculator for sewage, thereby improving the flocculation effect, enhancing the pollutant removal efficiency, and improving the water quality. At the same time, the aeration assembly can vibrate the surface of the flocculator while generating the aeration effect, prompting the particles in the wastewater to collide and aggregate to form larger flocs, thus improving the efficiency of electrocoagulation.

[0020] Through the adjustment assembly provided in the present invention, manual adjustment can be performed according to the position of the clear water layer, and then the clear water can be discharged. During the adjustment process, the leakage of clear water can be avoided. At the same time, through the sludge receiving assembly provided, the sludge generated during the electrocoagulation process can be received. When the sewage is statically precipitated after the electrocoagulation process is completed, the sludge can always converge to the bottom of the sludge receiving assembly, facilitating the subsequent discharge of the sludge. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the installation position of the aeration assembly of the present invention;

[0023] Figure 3 is a schematic diagram of the installation positions of the sludge receiving assembly and the flocculator of the present invention;

[0024] Figure 4 is a schematic diagram of the installation position of the inner tank of the present invention;

[0025] Figure 5 is a schematic diagram of the opening positions of the storage tank and the first rectangular groove of the present invention;

[0026] Figure 6 is a schematic diagram of the opening positions of the fixed groove and the second rectangular groove of the present invention;

[0027] Figure 7 is a schematic diagram of the structure of the adjustment assembly of the present invention;

[0028] Figure 8 Schematic structural diagram of the sludge receiving component of the present invention;

[0029] Figure 9 Schematic structural diagram of the aeration component of the present invention;

[0030] Figure 10 of the present invention Figure 4 Enlarged schematic diagram of the structure at position A in

[0031] In the figure: 1. Outer shell; 100. Storage tank; 101. Mounting hole; 102. Drain pipe; 103. Threaded plug one; 104. Rectangular groove one; 2. Support frame; 21. Support leg; 3. Inner tank; 31. Fixed groove; 32. Rectangular groove two; 4. Concave plate; 5. Aeration pump; 6. Aeration component; 61. Air injection pipe one; 62. Semi-circular shell one; 63. Air injection pipe two; 64. Semi-circular shell two; 65. Aeration hole; 66. Connecting rope; 67. Rubber ball; 7. Adjusting component; 71. Hollow slider; 72. Rectangular plate; 73. Drain pipe; 74. Threaded plug two; 8. Sludge receiving component; 81. Trapezoidal shell; 82. Trapezoidal groove; 83. Sludge outlet; 84. Sludge discharge pipe; 85. Threaded plug three; 9. Flocculator. Specific embodiments

[0032] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0033] Example 1, as Figure 1 , Figure 2 and Figure 3 shown, an electrocoagulation device for treating wastewater includes an outer shell 1. The left part of the lower end of the outer shell 1 is fixedly connected with a support frame 2. The front side and the rear side of the right part of the lower end of the outer shell 1 are both fixedly connected with support legs 21. The inner surface of the outer shell 1 is fixedly connected with an inner tank 3. The upper sides of the middle parts of the left end and the right end of the outer shell 1 are jointly fixedly connected with a concave plate 4. The left side of the upper end of the concave plate 4 is fixedly connected with an aeration pump 5. An aeration component 6 is arranged in the inner cavity of the inner tank 3. By cooperating the arranged aeration component 6 with the aeration pump 5, during the electrocoagulation process of the sewage by the flocculator 9, an aeration effect can be generated, thereby improving the flocculation effect, increasing the pollutant removal efficiency, and improving the water quality. And the aeration component 6 can also generate vibration on the surface of the flocculator 9 while generating the aeration effect, prompting the particles in the wastewater to collide and aggregate to form larger flocs, thereby improving the electrocoagulation efficiency;

[0034] An adjusting component 7 is slidably installed at the rear end of the outer shell 1. By arranging the adjusting component 7, it can be manually adjusted according to the position of the clear water layer, and then the clear water is discharged, and during the adjustment process, the leakage of the clear water can be avoided;

[0035] 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.

[0036] A flocculator 9 is fixedly connected to the lower portion of the inner surface of the inner tank 3 .

[0037] The flocculator 9 mentioned above is a conventional device in the prior art, and its specific working principle is as follows:

[0038] 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.

[0039] A reduction reaction occurs at the cathode, where the hydrogen ions in the water gain electrons and generate hydrogen gas.

[0040] 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.

[0041] 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.

[0042] 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;

[0043] 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.

[0044] 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.

[0045] Embodiment 2: Based on Embodiment 1, this embodiment aims to increase the collision probability between particles in wastewater during the electro-flocculation process, thereby promoting the formation of floccules.

[0046] For details, see Figure 1 , Figure 2 , Figure 3 ,Figure 4 , Figure 6 , Figure 8 and Figure 9 , a storage groove 100 is formed at the upper end of the outer shell 1, and an installation hole 101 communicating with the inner cavity of the storage groove 100 is formed at the right rear corner of the rear end of the outer shell 1. A discharge pipe 102 is fixedly connected to the inner surface of the installation hole 101, a first threaded plug 103 is threadedly connected to the inner surface of the discharge pipe 102, and a first rectangular groove 104 penetrating through the storage groove 100 and extending to the inner surface of the outer shell 1 is formed in the middle of the rear end of the outer shell 1.

[0047] Furthermore, a fixing groove 31 is formed on the right side of the bottom wall of the inner tank 3, and a second rectangular groove 32 penetrating through the inner surface of the inner tank 3 is formed in the middle of the rear end of the inner tank 3.

[0048] Furthermore, the aeration assembly 6 includes an air injection pipe 61. The upper end of the air injection pipe 61 penetrates 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 first semi-circular shell 62. The lower end of the first semi-circular 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 second semi-circular shell 64. The first semi-circular shell 62 and the second semi-circular shell 64 are symmetrically distributed up and down. A plurality of aeration holes 65 are formed on the sides of the first semi-circular shell 62 and the second semi-circular shell 64 close to each other.

[0049] Furthermore, four connecting ropes 66 are fixedly connected together in a linear array on the sides of the first semi-circular shell 62 and the second semi-circular shell 64 close to each other, and rubber balls 67 are fixedly connected to the middle parts of the outer surfaces of the four connecting ropes 66.

[0050] Furthermore, the inner cavity of the air injection pipe 61 communicates with the inner cavity of the first semi-circular shell 62, and the inner cavity of the air injection pipe 63 communicates with the inner cavities of the first semi-circular shell 62 and the second semi-circular shell 64 respectively.

[0051] Furthermore, the sludge receiving assembly 8 includes a trapezoidal shell 81. The trapezoidal shell 81 is fixedly connected to the inner cavity of the fixing groove 31. A trapezoidal groove 82 is formed at the upper end of the trapezoidal shell 81. A sludge outlet 83 is formed at the lower side of the rear end of the trapezoidal shell 81. A sludge discharge pipe 84 is fixedly connected to the inner surface of the sludge outlet 83. A third threaded plug 85 is threadedly connected to the rear part of the inner surface of the sludge discharge pipe 84. The trapezoidal groove 82 is arranged in an inclined shape.

[0052] As can be seen from the above, the electrocoagulation treatment of wastewater can be realized by the flocculator 9. When the electrocoagulation treatment of wastewater is carried out, the aeration pump 5 can be started to enable the aeration pump 5 to pump external gas into the air injection pipe 61;

[0053] As described above, the inner cavity of the first injection pipe 61 communicates with the inner cavity of the first semi-circular shell 62, and the inner cavities of the second injection pipes 63 communicate with the inner cavities of the first semi-circular shell 62 and the second semi-circular shell 64 respectively. Therefore, after the gas enters the first injection pipe 61, the gas can continuously enter the first semi-circular shell 62, and part of the gas can also enter the second injection pipe 63 from the first semi-circular shell 62 and then enter the second semi-circular shell 64. The gas in the first semi-circular shell 62 and the second semi-circular shell 64 will be ejected from the aeration holes 65 opened on their outer surfaces. 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 during the rising process of the bubbles, small particles will be carried, making it easier for them to combine with the flocs to form larger and denser flocs, improving the sedimentation efficiency;

[0054] Aeration can increase the dissolved oxygen concentration in the wastewater, promote the oxidation reaction, and has a significant effect on the removal of organic matter, heavy metal ions (such as Fe2+, Mn2+), and reducing substances (such as sulfides);

[0055] During the electrocoagulation process, aeration can not only prevent the formation of a passivation layer on the electrode surface, maintain the high-efficiency reaction activity of the electrode, thereby improving the overall efficiency of electrocoagulation, but also make the pollutants and flocculants in the wastewater more evenly distributed, further enhancing the reaction efficiency of electrocoagulation;

[0056] In addition, aeration can blow off the volatile organic compounds in the wastewater, reduce its pollution to the water body, and at the same time, by oxidizing reducing substances such as hydrogen sulfide, effectively reduce the odor in the wastewater;

[0057] More importantly, aeration can accelerate the formation and sedimentation of flocs, thereby shortening the treatment time of electrocoagulation and reducing energy consumption;

[0058] At the same time, 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 first semi-circular shell 62 and the second semi-circular shell 64 respectively, and the four rubber balls 67 are respectively located between the anode and the cathode of the flocculator 9, when the four rubber balls 67 are blown by the gas, they will impact the anode and the cathode of the flocculator 9, thereby causing the flocculator 9 to vibrate;

[0059] When the flocculator 9 vibrates, the vibration can increase the movement energy of the particles in the wastewater, improve the collision probability between the particles, and accelerate the formation of flocs. It can also make the flocs more dense, improving their sedimentation speed and separation efficiency;

[0060] Vibration can not only prevent the deposition of pollutants on the electrode surface or the formation of a passivation layer, but also maintain the high-efficiency reaction activity of the electrode. At the same time, vibration can reduce the deposition and corrosion phenomena on the electrode surface, and can also significantly extend the service life of the electrode, thereby reducing the maintenance cost;

[0061] 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;

[0062] Especially for certain specific pollutants, such as heavy metal ions or organic substances, vibration can accelerate the redox reaction on the electrode surface, thereby further improving the removal efficiency;

[0063] During the process of electrocoagulating sewage, the flocs in the sewage will float to the top layer. Subsequently, under the action of aeration, the flocs will always surge upward and then fall into the storage tank 100 opened at the upper end of the outer shell 1 from the top of the inner tank 3 for storage. When clear water appears in the gushing part, the aeration pump 5 can be stopped and the aeration can be paused. Then, the electrocoagulated sewage in the device is allowed to stand. During the standing process, the sludge will settle downward. As known above, the trapezoidal groove 82 is inclined, so the settled sludge will always converge to the bottom of the trapezoidal groove 82;

[0064] Therefore, through the set aeration component 6, during the electrocoagulation of sewage, the effects of aeration and vibration can be added, making the particles in the sewage easier to combine with the flocs to form larger and denser flocs, improving the sedimentation efficiency. And vibration can increase the movement energy of the particles in the wastewater, increase the collision probability between the particles, thereby accelerating the formation of the flocs, and can also make the flocs more dense, improving their sedimentation speed and separation efficiency.

[0065] Example 3, on the basis of Example 2, for the purpose of cleaning the settled sludge and flocs.

[0066] Specifically, referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 and Figure 10 , the adjusting component 7 includes a hollow slider 71. The hollow slider 71 is slidably connected to the inner cavities of the first rectangular groove 104 and the second rectangular groove 32. Rectangular plates 72 are fixedly connected to both the front and rear outer surfaces of the hollow slider 71. A drain pipe 73 is fixedly connected to the inner cavity of the hollow slider 71. A second threaded plug 74 is threadedly connected to the rear inner surface of the drain pipe 73.

[0067] Further, the rear end of the front rectangular plate 72 is in mutual contact with the inner surface of the inner tank 3, and the front end of the rear rectangular plate 72 is in mutual contact with the rear end of the outer shell 1.

[0068] Further, the first rectangular groove 104 and the second rectangular groove 32 are distributed in front and rear alignment.

[0069] After stopping aeration, the sewage treated by electrocoagulation is allowed to stand for a period of time. A small amount of flocculants will appear on the uppermost layer of the sewage, the middle layer is clear water, and the lowermost layer is the sedimented sludge;

[0070] To drain the clear water separately, refer to Figure 4 、 5 、6 and Figure 10 , in this embodiment, since the first rectangular groove 104 and the second rectangular groove 32 are arranged in a front-back alignment, and the hollow slider 71 is slidably connected to the inner cavities of the first rectangular groove 104 and the second rectangular groove 32, the hollow slider 71 can be moved downward in the first rectangular groove 104 and the second rectangular groove 32 until the hollow slider 71 drives the drain pipe 73 fixedly connected to its inner surface to move to the lowermost layer of the clear water. As described above, the rear end of the front rectangular plate 72 fits against the inner surface of the inner tank 3, and the front end of the rear rectangular plate 72 fits against the rear end of the outer shell 1. Therefore, when the hollow slider 71 moves, the rectangular plates 72 on both sides can always keep the second rectangular groove 32 and the first rectangular groove 104 in a sealed state;

[0071] To achieve the purpose of good sealing, rubber pads can also be added to the surfaces of the rectangular plates 72 on both sides, thereby further improving the overall sealing performance;

[0072] When the drain pipe 73 is moved to the lower side of the clear water layer, the second threaded plug 74 can be rotated to open at this time, so that the clear water is discharged out of the drain pipe 73. When discharging, if flocculants appear, the second threaded plug 74 needs to be rotated and closed, and then a small amount of flocculants on the surface of the clear water can be removed;

[0073] After the clear water is completely discharged, only by opening the third threaded plug 85, the sludge and the remaining flocculants can be discharged out of the sludge discharge pipe 84. Therefore, by setting the adjustment component 7 and the sludge receiving component 8, the purpose of discharging the clear water, flocculants and sludge generated after electrocoagulation in a partitioned manner can be achieved.

[0074] The above-mentioned aeration pump 5 is a conventional setting in the prior art, and its specific working principle is as follows:

[0075] Power input:

[0076] Usually, a power source is provided by a motor, an engine, etc., to provide 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 in a set manner;

[0077] Gas inhalation:

[0078] Driven by power, the impeller of the aeration pump 5 rotates rapidly;

[0079] When the impeller rotates, a low-pressure area will be formed inside the pump casing. Due to the action of atmospheric pressure, the outside air is pressed into the pump and enters the internal cavity of the aeration pump 5 through the air inlet.

[0080] Gas pressurization and transmission:

[0081] The air entering the pump obtains 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 inside the pump casing and is discharged from the air outlet.

[0082] Therefore, the above-mentioned aeration pump 5 is a conventional design 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.

[0083] The above-mentioned rubber pad is a conventional setting in the prior art. In this solution, it only needs to meet the requirement of increasing the sealing performance between the two rectangular plates 72 and the rectangular groove two 32 and the rectangular groove one 104 respectively. Therefore, this solution will not elaborate on it in detail.

[0084] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended 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; A storage slot (100) is provided at the upper end of the shell (1), and a rectangular slot 1 (104) is provided at the middle of the rear end of the shell (1), penetrating the storage slot (100) and extending to the inner surface of the shell (1); 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); The rectangular groove 1 (104) and the rectangular groove 2 (32) are aligned front and back; The adjustment assembly (7) comprises a hollow slider (71), the hollow slider (71) being slidably connected to the inner cavities of the first rectangular groove (104) and the second rectangular groove (32), the front and rear outer surfaces of the hollow slider (71) being fixedly connected to rectangular plates (72), the inner cavity of the hollow slider (71) being fixedly connected to a drain pipe (73), and the rear inner surface of the drain pipe (73) being threadedly connected to a second threaded plug (74); 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).

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

3. The electrocoagulation device for treating wastewater according to claim 1, characterized in that: A fixing groove (31) is provided on the right side of the bottom wall of the inner container (3).

4. 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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