Electrochemical flocculation precipitation device and method

Abstract

The present invention discloses an electrochemical flocculation sedimentation device, which includes: a reaction tank body, a groove is formed on the upper side of the inner wall of the reaction tank body, an annular chute is formed on both sides of the inner wall of the groove, the inner walls of the two annular chutes are both slidably connected to a connecting ring through a slider, the lower ends of the two connecting rings are both connected to a guide tube, a driving motor is fixedly connected to the center of the upper surface of the reaction tank body, and the output end of the driving motor passes through the upper surface of the reaction tank body to the interior thereof. The present invention separates the sewage and impurities after electro-flocculation by using a guide tube. The water after electro-flocculation and the impurities are separated under the action of the guide tube, thereby intercepting the impurities outside the guide tube, and the water without impurities is inside the guide tube. The filtered water is pumped into the next device for treatment by a water pump, thereby reducing the content of impurities in the water and increasing work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of slow flocculation sedimentation devices, and in particular to an electrochemical flocculation sedimentation device and method. Background Art

[0002] Flocculation sedimentation is the process of flocculation and sedimentation of particulate matter in water. After adding coagulants to the water, the colloids and dispersed particles of the suspended matter form flocs under the interaction of molecular forces and they collide and condense with each other during the sedimentation process. Their size and mass continue to increase, and the sedimentation rate continues to increase. The flocs formed after adding coagulants to surface water, the organic suspended matter in domestic sewage, and the activated sludge will all show flocculation and sedimentation phenomena during the sedimentation process.

[0003] When using existing electrochemical flocculation, impurities contained in the flocculated water need to be precipitated to separate the water and impurities, and then the precipitated water is treated again. However, the precipitation method not only has a low separation efficiency between water and impurities, but also some impurities are still contained in the separated water.

[0004] Therefore, an electrochemical flocculation precipitation device and method are provided to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that, when using the existing electrochemical flocculation, impurities contained in the flocculated water need to be precipitated, so that the water and impurities are separated, and the precipitated water is treated again. However, the precipitation method not only has a low separation efficiency of water and impurities, but also some impurities are still contained in the separated water. Therefore, an electrochemical flocculation precipitation device is provided, which includes:

[0006] A groove is provided on the upper side of the inner wall of the reaction pool body, and annular grooves are provided on both sides of the inner wall of the groove. The inner walls of the two annular grooves are slidably connected to connecting rings through sliders, and the lower ends of the two connecting rings are interference-connected with guide tubes. A driving motor is fixedly connected to the center of the upper surface of the reaction pool body, and the output end of the driving motor passes through the upper surface of the reaction pool body to the interior thereof. The output end of the driving motor is fixedly connected to a connecting rod, and the lower end of the connecting rod is fixedly connected to the lower side of the inner wall of the guide tube, and the connecting rod is fixedly connected to a plurality of internal stirring blades.

[0007] Furthermore, a plurality of external stirring blades are fixedly connected around the guide tube, and scrapers are fixedly connected to the lower surface of the external stirring blades on the left side and the lower surface of the guide tube.

[0008] Furthermore, a water pump is fixedly connected to the upper surface of the reaction tank body on the side of the driving motor, and a water pump is fixedly connected to the output end of the water pump. The lower end of the water pump passes through the upper surface of the reaction tank body to the inside of the guide tube.

[0009] Furthermore, a plurality of cathode rods are fixedly connected to the upper and lower sides of the inner wall of the reaction cell body, and anode rods are fixedly connected to the upper and lower sides of the inner wall of the reaction cell body on one side of the cathode rod.

[0010] Furthermore, a sewage pipe is fixedly connected to the lower surface of the reaction tank body, and a first valve is fixedly connected to the pipe wall of the sewage pipe.

[0011] Furthermore, a water inlet pipe is fixedly connected to the upper side of the left side surface of the reaction tank body, and a second valve is fixedly connected to the pipe wall of the water inlet pipe.

[0012] Furthermore, the bottom of the guide tube is a fixed plate with evenly arranged holes.

[0013] On the other hand, the present invention also provides an electrochemical flocculation precipitation method, which is used in the above-mentioned electrochemical flocculation precipitation device, comprising:

[0014] Open the second valve on the water inlet pipe and inject the sewage into the reaction tank body through the water inlet pipe;

[0015] After the sewage enters the reaction tank body, the cathode rod and the anode rod in the reaction tank body are connected to the power supply to perform electrochemical flocculation on the sewage;

[0016] The drive motor is started, and the drive motor drives the guide tube to rotate through the connecting rod; the top of the guide tube is fixedly connected to the connecting ring, and the slider on the connecting ring slides in the annular groove opened on the top of the inner wall of the reaction tank body to stabilize the rotation of the guide tube;

[0017] The fixed plate at the bottom of the guide tube filters the impurities after electrochemical flocculation outside the guide tube, and the water without impurities in the guide tube is pumped out by a water pump;

[0018] After the electrochemical flocculation is completed, the first valve on the sewage pipe is opened, and the impurities are discharged through the sewage pipe driven by the scraper.

[0019] The implementation of the present invention has the following beneficial effects:

[0020] 1. The present invention is equipped with a reaction tank body, an annular chute, a connecting ring, a guide tube, a driving motor, a connecting rod, an internal stirring blade, and a groove. The present invention uses a guide tube to separate the sewage and impurities after electric flocculation. The water after electric flocculation and the impurities are separated under the action of the guide tube, thereby intercepting the impurities outside the guide tube, and the water without impurities is inside the guide tube. The filtered water is pumped into the next device for treatment by a water pump, thereby reducing the impurity content in the water and increasing work efficiency.

[0021] 2. By setting up external stirring blades, scrapers and guide tubes, the external sewage can flow quickly between the cathode pole and the anode pole under the action of the external stirring blades, thereby accelerating the reaction efficiency of sewage electrolysis.

[0022] 3. By setting up a water pump, a suction pipe, a reaction tank body, and a guide tube, under the action of the water pump, the water without impurities in the guide tube is pumped out through the suction pipe to the next treatment equipment, thereby reducing the impurity content in the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the overall front side section structure viewed from the left side of the present invention.

[0025] Figure 3 It is a schematic diagram of the overall front side section structure of the present invention from the right side.

[0026] Figure 4 For the present invention Figure 2 Schematic diagram of the enlarged structure of part A.

[0027] Figure 5 It is a flow chart of the present invention.

[0028] In the figure: 1. Reaction tank body; 2. Annular chute; 3. Connecting ring; 4. Guide tube; 5. Drive motor; 6. Connecting rod; 7. Internal stirring blade; 8. External stirring blade; 9. Scraper; 10. Water pump; 11. Suction pipe; 12. Cathode pole; 13. Anode pole; 14. Drain pipe; 15. First valve; 16. Water inlet pipe; 17. Second valve; 18. Groove. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0030] The technical problem to be solved by this embodiment is that, when using the existing electrochemical flocculation, impurities contained in the flocculated water need to be precipitated, so that the water and impurities are separated, and the precipitated water is treated again. However, the separation efficiency of water and impurities by precipitation is not high, and some impurities are still contained in the separated water. Therefore, an electrochemical flocculation precipitation device and method are provided, and the electrochemical flocculation precipitation device includes:

[0031] The reaction pool body 1 has a groove 18 on the upper side of the inner wall of the reaction pool body 1, and an annular chute 2 is provided on both sides of the inner wall of the groove 18. The inner walls of the two annular chute 2 are connected to the connecting ring 3 by sliding blocks. The lower ends of the two connecting rings 3 are interference-connected with the guide cylinder 4. The cooperation of the two connecting rings 3, the slider and the two annular grooves can make the guide cylinder more stable during the rotation process. A driving motor 5 is fixedly connected to the center of the upper surface of the reaction pool body 1. The output end of the driving motor 5 passes through the upper surface of the reaction pool body 1 to its interior, and the output end of the driving motor 5 is fixedly connected to a connecting rod 6. The lower end of the connecting rod 6 is fixedly connected to the lower side of the inner wall of the guide tube 4. The rod wall of the connecting rod 6 is fixedly connected with a plurality of internal stirring blades 7. The internal stirring blades increase the flow rate of the water flow and can effectively improve the efficiency of electrochemical flocculation. The present invention separates the sewage and impurities after electro-flocculation by using the guide tube 4. The water and impurities after electro-flocculation are separated under the action of the guide tube 4, thereby intercepting the impurities outside the guide tube 4, and the water without impurities is in the guide tube 4. The filtered water is pumped into the next device for treatment by the water pump 10, thereby reducing the content of impurities in the water and increasing work efficiency.

[0032] like Figure 1-3 As shown, a plurality of external stirring blades 8 are fixedly connected around the guide tube 4, and the lower surface of the external stirring blade 8 on the left and the lower surface of the guide tube 4 are fixedly connected with a scraper 9, and the lower end of the scraper is arranged in contact with the reaction tank body, and cooperates with the action of the external stirring blade 8 to make the external sewage flow quickly between the cathode pole 12 and the anode pole 13, thereby accelerating the reaction efficiency of sewage electrolysis, and a water pump 10 is fixedly connected to the right side of the upper surface of the reaction tank body 1, and the output end of the water pump 10 is fixedly connected to a pumping pipe 11, and the lower end of the pumping pipe 11 passes through the upper surface of the reaction tank body 1 to the interior of the guide tube 4. Under the action of the water pump 10, the water without impurities in the guide tube 4 is pumped out to the next treatment equipment through the pumping pipe 11, thereby reducing the impurity content in the water.

[0033] In a specific embodiment, multiple cathode rods 12 are fixedly connected to the upper and lower sides of the inner wall of the reaction tank body 1, and anode rods 13 are fixedly connected to the upper and lower sides of the inner wall of the reaction tank body 1 on one side of the cathode rod 12. Under the action of the cathode rod 12 and the anode rod 13, the sewage undergoes an electrochemical reaction.

[0034] like Figure 1-3 As shown, a sewage pipe 14 is fixedly connected to the lower surface of the reaction tank body 1, and a first valve 15 is fixedly connected to the wall of the sewage pipe 14. Under the action of the sewage pipe 14, impurities in the sewage are discharged. An inlet pipe 16 is fixedly connected to the upper side of the left surface of the reaction tank body 1, and a second valve 17 is fixedly connected to the wall of the water inlet pipe 16. Sewage is injected into the reaction tank body 1 through the water inlet pipe 16, and under the action of the second valve 17, the amount of sewage injected can be conveniently controlled.

[0035] On the other hand, this embodiment also provides an electrochemical flocculation precipitation method, which is used in the above-mentioned electrochemical flocculation precipitation device, comprising:

[0036] Open the second valve on the water inlet pipe and inject the sewage into the reaction tank body through the water inlet pipe;

[0037] After the sewage enters the reaction tank body, the cathode rod and the anode rod in the reaction tank body are connected to the power supply to perform electrochemical flocculation on the sewage;

[0038] The drive motor is started, and the drive motor drives the guide tube to rotate through the connecting rod; the top of the guide tube is fixedly connected to the connecting ring, and the slider on the connecting ring slides in the annular groove opened on the top of the inner wall of the reaction tank body to stabilize the rotation of the guide tube;

[0039] The fixed plate at the bottom of the guide tube filters the impurities after electrochemical flocculation outside the guide tube, and the water without impurities in the guide tube is pumped out by a water pump;

[0040] After the electrochemical flocculation is completed, the first valve on the sewage pipe is opened, and the impurities are discharged through the sewage pipe driven by the scraper.

[0041] The working principle of the present invention is as follows: when using the device, sewage is injected into the reaction tank body 1 through the water inlet pipe 16, and the valve on the water inlet pipe 16 is opened. After the sewage enters the reaction tank body 1, the cathode rod 12 and the anode rod 13 in the reaction tank body 1 and the drive motor 5 are connected to an external power supply, so that the cathode rod 12 and the anode rod 13 generate current. Under the action of the current, the sewage is electrochemically flocculated;

[0042] At the same time, the drive motor 5 is started, so that the drive motor 5 drives the guide tube 4 to rotate through the connecting rod 6, and under the action of the annular slide 2 in the groove 18, the guide tube 4 slides in the annular slide 2 through the slider on the connecting ring 3, maintaining the stability of the guide tube 4 and preventing external impurities from entering the guide tube 4. The external stirring blades 8 on the guide tube 4 and the internal stirring blades 7 on the connecting rod 6 rotate rapidly, so that the water undergoes an electrochemical reaction quickly, thereby increasing the efficiency of electrochemistry. The flocculated impurities accumulate at the bottom of the reaction tank body 1, and the water pump 10 is energized so that the water pump 10 extracts the water without impurities in the guide tube 4 and the impurities in the reaction tank body 1. After the sewage reaction is completed, the first valve 15 on the sewage pipe 14 is opened, and the impurities are discharged through the sewage pipe 14 under the drive of the scraper 9.

[0043] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for electrochemical flocculation precipitation, used in an electrochemical flocculation precipitation device, wherein the electrochemical flocculation precipitation device comprises a reaction tank body, characterized in that: A groove is provided on the upper side of the inner wall of the reaction pool body, and an annular slide groove is provided on both sides of the inner wall of the groove. The inner walls of the two annular slide grooves are slidably connected to a connecting ring through a slider, and the lower ends of the two connecting rings are interference-connected with a guide cylinder. A driving motor is fixedly connected to the center of the upper surface of the reaction pool body, and the output end of the driving motor passes through the upper surface of the reaction pool body to the interior thereof. The output end of the driving motor is fixedly connected to a connecting rod, and the lower end of the connecting rod is fixedly connected to the lower side of the inner wall of the guide cylinder, and the rod arm of the connecting rod is fixedly connected to a plurality of internal stirring blades; A plurality of external stirring blades are fixedly connected around the guide cylinder, and scrapers are fixedly connected to the lower surface of the external stirring blades on the left side and the lower surface of the guide cylinder; A water pump is fixedly connected to the upper surface of the reaction tank body on one side of the driving motor, and a water pump is fixedly connected to the input end of the water pump. The lower end of the water pump passes through the upper surface of the reaction tank body to the interior of the guide cylinder; A plurality of cathode rods are fixedly connected to the upper and lower sides of the inner wall of the reaction cell body, and anode rods are fixedly connected to the upper and lower sides of the inner wall of the reaction cell body on one side of the cathode rod; The lower surface of the reaction tank body is fixedly connected to a sewage pipe, and the wall of the sewage pipe is fixedly connected to a first valve; the upper side of the left surface of the reaction tank body is fixedly connected to a water inlet pipe, and the wall of the water inlet pipe is fixedly connected to a second valve; The bottom of the guide tube is a fixed plate with evenly arranged holes; The electrochemical flocculation precipitation method comprises: Open the second valve on the water inlet pipe and inject the sewage into the reaction tank body through the water inlet pipe; After the sewage enters the reaction tank body, the cathode rod and the anode rod in the reaction tank body are connected to the power supply to perform electrochemical flocculation on the sewage; The drive motor is started, and the drive motor drives the guide tube to rotate through the connecting rod; the top of the guide tube is fixedly connected to the connecting ring, and the slider on the connecting ring slides in the annular groove opened on the top of the inner wall of the reaction tank body to stabilize the rotation of the guide tube; The fixed plate at the bottom of the guide tube filters the impurities after electrochemical flocculation outside the guide tube, and the water without impurities in the guide tube is pumped out by a water pump; After the electrochemical flocculation is completed, the first valve on the sewage pipe is opened, and the impurities are discharged through the sewage pipe driven by the scraper.

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