Biological micro-electrolysis reactor with floating cathode structure

Abstract

The utility model discloses a biological micro-electrolysis reactor with a floating cathode structure, which comprises a biological micro-electrolysis reaction tank, an anode filler and a cathode filter device, the cathode filter device comprises a cuboid frame and a screen filter cover, the cuboid frame is formed by plastic pipes, the screen filter cover is wrapped outside the cuboid frame, and the anode filler is arranged in the cuboid frame. One of the six surfaces of the cuboid frame is not wrapped, and the water outlet pipe is communicated with the interior of the cuboid frame. A washing switcher is arranged at the top end of the section, located in the cuboid frame, of the third connecting pipe, the washing switcher is connected with a back washing pipe and a distribution transverse pipe, a plurality of back washing water outlet holes are formed in a plastic pipe, through the ingenious design of the internal structure (including a lifting disc, a plugging plate and the like) of the washing switcher, the washing state can be automatically switched, and the washing efficiency is improved. And when the screen filter casing needs to be cleaned, the screen filter casing can be efficiently washed from the inside, so that the filtering efficiency is guaranteed, and the continuous and stable operation of the whole device is maintained.

Description

Technical Field

[0001] This utility model relates to the field of hydrolysis acidification wastewater treatment technology, and in particular to a biological microelectrolysis reactor with a floating cathode structure. Background Technology

[0002] In recent years, hydrolysis acidification technology has been widely used as a pretreatment method for certain biological treatment processes (such as aerobic processes) to treat high-concentration, recalcitrant, and complex wastewater, such as pharmaceutical wastewater, dyeing and printing wastewater, papermaking wastewater, and petrochemical wastewater. Hydrolysis acidification technology utilizes the unique transformation and degradation capabilities of anaerobic microorganisms for certain recalcitrant substances and toxic organic matter to reduce the biotoxicity of wastewater. It also converts recalcitrant macromolecular organic matter into easily biodegradable small molecules, effectively improving the biodegradability of wastewater. Simultaneously, it removes some organic matter, creating stable and excellent influent conditions for subsequent biological treatment.

[0003] Utility model patent CN220012313U discloses a bioelectrochemical reactor for enhancing the hydrolysis and acidification of recalcitrant organic wastewater. The reactor includes: a tank body; an activated carbon fiber packed anode suspended in the tank water; a filter cathode with a built-in air-filled float, which floats on the surface of the tank water; and wires for connecting the activated carbon fiber packed anode in series and for connecting the activated carbon fiber packed anode and the filter cathode. The activated carbon fiber packed anode comprises several combined activated carbon fiber ropes or rope-type movable carbon fiber ropes, which are connected in series by the wires. A packing support is fixedly attached to the tank body, and the activated carbon fiber packed anode is fixed on the packing support. This utility model enables the anode to facilitate the adsorption of biofilm and organic pollutants in the tank water, while also allowing for easy adjustment and relatively precise control of the area of ​​the cathode exposed in the tank water.

[0004] Its filter cathode does not have an automatic cleaning function. After a period of use, a layer of filter material will be wrapped around the outside of the filter cathode, causing the filter cathode to become clogged and affecting the filtration efficiency. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a biological microelectrolysis reactor with a floating cathode structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A bio-microelectrolysis reactor with a floating cathode structure includes a bio-microelectrolysis reaction tank, an anode packing, and a cathode filtration device. The cathode filtration device includes a cuboid frame made of plastic tubes and a screen filter cover. The screen filter cover is wrapped around the outside of the cuboid frame, and one of the six sides of the cuboid frame is not wrapped. The water outlet pipe is connected to the inside of the cuboid frame. The bottom of the cathode filtration device is below the water surface, and the top of the cathode filtration device is above the water surface. The anode packing and the cathode filtration device are connected by a copper wire, which is connected to an electrochemical workstation.

[0008] The biological micro-electrolysis reactor is provided with an inlet pipe on one side near the bottom and an outlet pipe on the side away from the inlet pipe near the top. The biological micro-electrolysis reactor is provided with a sludge removal system inside.

[0009] The biological micro-electrolysis reactor is also equipped with a height adjustment mechanism, which is used to adjust the height of the cathode filter device and maintain its relative position with the water surface. The cathode filter device is equipped with a backwashing mechanism.

[0010] Preferably, the height adjustment mechanism includes a turntable installed on the side wall of the biological micro-electrolysis reactor, the top end of the water outlet pipe is bent to a horizontal state and faces the center of the turntable, and is connected to a first connecting pipe through a first rotary joint. The end of the first connecting pipe away from the first rotary joint passes through the edge of the turntable and extends horizontally into the interior of the biological micro-electrolysis reactor, and the first connecting pipe is rotatably connected to the turntable.

[0011] Preferably, the end of the first connecting pipe away from the first rotary joint is rotatably connected to a second connecting pipe, the second connecting pipe and the first connecting pipe are perpendicular to each other, a vertical slide rail is fixed on the inner wall of the biological micro-electrolysis reactor, a lifting bracket is slidably installed on the vertical slide rail, a third connecting pipe is fixed on the lifting bracket, one end of the second connecting pipe extends movably into the third connecting pipe, and the end of the third connecting pipe away from the second connecting pipe extends into the interior of the cuboid frame and has multiple water inlet holes at the bottom.

[0012] Preferably, a gear is fixed on the turntable, a push rod motor is fixed on the outer wall of the biological micro-electrolysis reaction cell, and a rack is fixed on the output shaft of the push rod motor, with the rack meshing with the gear.

[0013] Preferably, the backwashing mechanism includes a flushing switch fixed to the top of a section of the third connecting pipe located inside the cuboid frame. The flushing switch is connected to a backwashing pipe, and a distribution horizontal pipe is connected to the backwashing pipe. The distribution horizontal pipe communicates with a plastic pipe, and the plastic pipe is provided with multiple backwashing water outlet holes.

[0014] Preferably, a lifting plate is movably installed inside the flushing switch, a lifting rod is fixed to the top of the lifting plate, a second spring is fixed between the top of the lifting plate and the inner wall of the top of the flushing switch, a first sealing plate is fixed to the bottom of the lifting plate, and a second sealing plate is fixed to the side of the bottom of the lifting plate near the backwash pipe.

[0015] Preferably, the top end of the lifting rod extends movably to the outside of the flushing switch and the screen filter cover, and a trigger bar is fixed on the inner wall of the biological micro-electrolysis reaction tank, with the position of the trigger bar corresponding to the lifting rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By installing a turntable on the side wall of the biological micro-electrolysis reactor, and utilizing the cooperation of components such as the outlet pipe, first rotary joint, first connecting pipe, second connecting pipe, vertical slide rail, lifting support, and third connecting pipe, the height of the cathode filter can be actively adjusted to maintain a suitable relative position between it and the water surface. Compared to the traditional method of automatic adjustment relying on buoyancy, its height is easier to control, avoiding problems such as increased weight and insufficient buoyancy caused by filter material covering the surface of the cathode filter, thus reducing the frequency of cleaning and maintenance.

[0018] 2. The third connecting pipe is located inside the cuboid frame. At the top of one section, there is a flushing switch. The flushing switch is connected to the backwash pipe and the distribution horizontal pipe. The plastic pipe has multiple backwash water outlet holes. Through the ingenious design of the internal structure of the flushing switch (including the lifting plate, the sealing plate, etc.), the flushing state can be automatically switched. When it is necessary to clean the screen filter cover, it can be flushed from the inside in an efficient manner to ensure filtration efficiency and maintain the continuous and stable operation of the entire device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a first-view perspective perspective view of the present invention;

[0021] Figure 2 This is a front-view sectional view of the bio-microelectrolysis reactor of this utility model;

[0022] Figure 3 This is a second-view perspective perspective view of the present invention;

[0023] Figure 4This is a third-view perspective view of the present invention;

[0024] Figure 5 A schematic diagram showing the cathode filter device adjusted to its highest height using the height adjustment mechanism of this utility model.

[0025] Figure 6 This is a schematic diagram of the internal structure of the cathode filtration device of this utility model;

[0026] Figure 7 A schematic diagram showing the height adjustment mechanism of this utility model adjusting the cathode filter device to the intermediate height.

[0027] Figure 8 This is a schematic diagram of the internal structure of the flushing switch of this utility model;

[0028] Figure 9 This is a schematic diagram showing the connection relationship between the first sealing plate and the second sealing plate of this utility model;

[0029] In the diagram: 1. Biological micro-electrolysis reactor; 101. Inlet pipe; 2. Outlet pipe; 201. First rotary joint; 202. Turntable; 2021. Gear; 203. First connecting pipe; 2031. Second connecting pipe; 204. Push rod motor; 205. Rack; 3. Cathode filter device; 301. Plastic pipe; 3011. Backwash outlet; 302. Screen filter cover; 6. Vertical slide rail; 601. Lifting bracket; 602. Third connecting pipe; 603. Inlet; 604. Flushing switch; 6041. Lifting plate; 6042. Lifting rod; 6043. Trigger bar; 6044. Second spring; 6045. First sealing plate; 6046. Second sealing plate; 605. Backwash pipe; 606. Distribution horizontal pipe. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0031] Reference Figure 1-9A biological microelectrolysis reactor with a floating cathode structure includes a biological microelectrolysis reaction tank 1, an anode packing and a cathode filter device 3. The cathode filter device 3 includes a cuboid frame made of plastic tubes 301 and a screen filter cover 302. The screen filter cover 302 is wrapped around the outside of the cuboid frame, and one of the six sides of the cuboid frame is not wrapped. The water outlet pipe 2 is connected to the inside of the cuboid frame. The bottom of the cathode filter device 3 is below the water surface and the top of the cathode filter device 3 is above the water surface. The anode packing and the cathode filter device 3 are connected by a copper wire, which is connected to an electrochemical workstation.

[0032] The cathode filter device 3 includes a cuboid frame made of plastic tubes 301 and a screen filter cover 302. The screen filter cover 302 is wrapped around the outside of the cuboid frame, and one of the six sides of the cuboid frame is not covered to increase the water inflow and prevent clogging. The outlet pipe 2 is connected to the inside of the cuboid frame. The bottom of the cathode filter device 3 is below the water surface, and the top of the cathode filter device 3 is above the water surface. It can directly use molecular oxygen in the air as an electron acceptor. Its electron acceptance capacity is much greater than that of combined oxygen or other electron acceptors in traditional hydrolysis acidification anaerobic or hypoxic environments, thereby further accelerating the degradation rate of pollutants. The anode packing and the cathode filter device 3 are connected by copper wires, which are connected to the electrochemical workstation. The screen filter cover 302 is made of stainless steel with a mesh size of 20-100. Using this size of stainless steel screen can utilize the capillary action of water to keep the stainless steel screen in a moist state, which is conducive to the electron absorption of the cathode.

[0033] A water inlet pipe 101 is provided on one side near the bottom of the biological micro-electrolysis reactor 1, and a water outlet pipe 2 is provided on the side of the biological micro-electrolysis reactor 1 away from the water inlet pipe 101 near the top. A sludge discharge system 5 is provided inside the biological micro-electrolysis reactor 1.

[0034] The biological micro-electrolysis reactor 1 is also equipped with a height adjustment mechanism, which is used to adjust the height of the cathode filter device 3 and maintain its relative position with the water surface. The cathode filter device 3 is equipped with a backwashing mechanism.

[0035] The height adjustment mechanism includes a turntable 202 installed on the side wall of the biological micro-electrolysis reactor 1. The top end of the outlet pipe 2 is bent to a horizontal position and aligned with the center of the turntable 202. A first connecting pipe 203 is connected to the outlet pipe 202 via a first rotary joint 201. The end of the first connecting pipe 203 away from the first rotary joint 201 passes through the edge of the turntable 202 and extends horizontally into the interior of the biological micro-electrolysis reactor 1. The first connecting pipe 203 is rotatably connected to the turntable 202. When the turntable 202 rotates counterclockwise (refer to...), the height adjustment mechanism adjusts the height of the outlet pipe 202. Figure 5This can drive the first connecting pipe 203 to follow and move along the arc, thereby lowering the height of the first connecting pipe 203. When rotated 90 degrees counterclockwise, it will rotate to... Figure 7 The height.

[0036] The first connecting pipe 203 is rotatably connected to the second connecting pipe 2031 at the end away from the first rotary joint 201. The second connecting pipe 2031 and the first connecting pipe 203 are perpendicular to each other. A vertical slide rail 6 is fixed on the inner wall of the biological micro-electrolysis reaction tank 1. A lifting bracket 601 is slidably installed on the vertical slide rail 6. A third connecting pipe 602 is fixed on the lifting bracket 601. One end of the second connecting pipe 2031 extends movably into the third connecting pipe 602. The end of the third connecting pipe 602 away from the second connecting pipe 2031 extends into the interior of the cuboid frame and has multiple water inlet holes 603 at the bottom.

[0037] The first connecting pipe 203 is made of Figures 5 to 7 During the transition between the two states, due to the restriction of the second connecting pipe 2031 by the third connecting pipe 602, the second connecting pipe 2031 remains horizontal and moves downwards, and moves horizontally relative to the third connecting pipe 602. At this time, it will drive the third connecting pipe 602 to move vertically downwards, thereby driving the cathode filter device 3 to move vertically downwards. The turntable 202 can drive the cathode filter device 3 to move downwards by rotating counterclockwise, and can drive the cathode filter device 3 to move upwards by rotating clockwise. This achieves active adjustment of the height of the cathode filter device 3, which can easily maintain a suitable relative height between the cathode filter device 3 and the water surface. Compared with the transmission method that relies on the buoyancy of the cathode filter device 3 itself or external buoyancy objects, the height is easier to control. Traditional automatic buoyancy adjustment methods are prone to insufficient buoyancy after a period of use due to the increase in overall weight caused by the filter material covering the surface of the cathode filter device 3. This requires more frequent cleaning and maintenance, or the injection of air into the inflatable float.

[0038] Among them, a gear 2021 is fixed on the turntable 202, and a push rod motor 204 is fixed on the outer wall of the biological micro-electrolysis reaction tank 1. A rack 205 is fixed on the output shaft of the push rod motor 204. The rack 205 meshes with the gear 2021. By controlling the extension and retraction of the push rod motor 204, the rack 205 can be driven to move horizontally. In turn, the meshing of the rack 205 with the gear 2021 can drive the turntable 202 to rotate.

[0039] The backwashing mechanism includes a flushing switch 604 fixed at the top of a section of the third connecting pipe 602 located inside the cuboid frame. A backwashing pipe 605 is connected to the flushing switch 604, and a distribution horizontal pipe 606 is connected to the backwashing pipe 605. The distribution horizontal pipe 606 is connected to the plastic pipe 301, and the plastic pipe 301 is provided with multiple backwashing water outlet holes 3011. After a period of use, the screen filter cover 302 outside the cathode filter device 3 will become blocked, affecting the filtration efficiency. At this time, the screen filter cover 302 needs to be cleaned. It is only necessary to cut off the water inlet hole 603 passage through the flushing switch 604 to connect the third connecting pipe 602 with the backwashing pipe 605. At this time, backwashing liquid is introduced through the water outlet pipe 2. The backwashing liquid will be evenly distributed through the distribution horizontal pipe 606 and enter the plastic pipe 301, and spray out through each backwashing water outlet hole 3011, thereby flushing the screen filter cover 302 from the inside, which can efficiently clean the screen filter cover 302.

[0040] The flushing switch 604 includes a movably mounted lifting plate 6041. A lifting rod 6042 is fixed to the top of the lifting plate 6041. A second spring 6044 is fixed between the top of the lifting plate 6041 and the inner wall of the top of the flushing switch 604. A first sealing plate 6045 is fixed to the bottom of the lifting plate 6041. A second sealing plate 6046 is fixed to the side of the bottom of the lifting plate 6041 near the backwash pipe 605. The top of the lifting rod 6042 extends movably to the outside of the flushing switch 604 and the screen filter 302. A trigger bar 6043 is fixed to the inner wall of the biological micro-electrolysis reaction tank 1. The position of the trigger bar 6043 corresponds to the lifting rod 6042. When the second spring 6044 is in a relaxed state, it pulls the lifting plate 6041 to its highest position, at which point the second sealing plate 6046 is exactly... When the backwash pipe 605 is blocked, the inlet hole 603 and the third connecting pipe 602 are connected to each other, and the drainage state is activated. When the cathode filter device 3 needs to be cleaned, simply move the cathode filter device 3 upward to the highest position. At this time, the cathode filter device 3 is removed from the water surface, and the top of the lifting rod 6042 extends to the outside of the flushing switch 604 and the screen filter cover 302. A trigger bar 6043 is fixed on the inner wall of the biological micro-electrolysis reaction tank 1. The position of the trigger bar 6043 corresponds to the lifting rod 6042. The trigger bar 6043 will overcome the elastic force of the second spring 6044 and press down the lifting rod 6042, causing the first sealing plate 6045 to descend and block the inlet hole 603. At this time, the second sealing plate 6046 is offset from the backwash pipe 605, and the backwash state is activated, which can achieve the purpose of automatic switching.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bio-microelectrolysis reactor with a floating cathode structure, comprising a bio-microelectrolysis reaction tank (1), an anode packing material, and a cathode filter device (3), characterized in that: The cathode filter device (3) includes a cuboid frame made of plastic tube (301) and a screen filter cover (302). The screen filter cover (302) is wrapped around the outside of the cuboid frame, and one of the six sides of the cuboid frame is not wrapped. The water outlet pipe (2) is connected to the inside of the cuboid frame. The bottom of the cathode filter device (3) is below the water surface, and the top of the cathode filter device (3) is above the water surface. The anode packing and the cathode filter device (3) are connected by a copper wire, which is connected to the electrochemical workstation. The biological micro-electrolysis reactor (1) has an inlet pipe (101) located near the bottom on one side, and an outlet pipe (2) located near the top on the side away from the inlet pipe (101). The biological micro-electrolysis reactor (1) is equipped with a sludge discharge system (5). The biological micro-electrolysis reaction tank (1) is also equipped with a height adjustment mechanism, which is used to adjust the height of the cathode filter device (3) and maintain its relative position with the water surface. The cathode filter device (3) is equipped with a backwashing mechanism.

2. The biological micro-electrolysis reactor with floating cathode structure according to claim 1, characterized in that: The height adjustment mechanism includes a turntable (202) installed on the side wall of the biological micro-electrolysis reactor (1). The top of the water outlet pipe (2) is bent to a horizontal position and faces the center of the turntable (202). A first connecting pipe (203) is connected to it through a first rotary joint (201). The end of the first connecting pipe (203) away from the first rotary joint (201) passes through the edge of the turntable (202) and extends horizontally into the interior of the biological micro-electrolysis reactor (1). The first connecting pipe (203) is rotatably connected to the turntable (202).

3. The biological micro-electrolysis reactor with floating cathode structure according to claim 2, characterized in that: The first connecting pipe (203) is rotatably connected to the end away from the first rotary joint (201) by the second connecting pipe (2031). The second connecting pipe (2031) and the first connecting pipe (203) are perpendicular to each other. A vertical slide rail (6) is fixed on the inner wall of the biological micro-electrolysis reaction tank (1). A lifting bracket (601) is slidably installed on the vertical slide rail (6). A third connecting pipe (602) is fixed on the lifting bracket (601). One end of the second connecting pipe (2031) extends into the third connecting pipe (602). The end of the third connecting pipe (602) away from the second connecting pipe (2031) extends into the interior of the cuboid frame and has multiple water inlet holes (603) at the bottom.

4. The biological micro-electrolysis reactor with floating cathode structure according to claim 3, characterized in that: A gear (2021) is fixed on the turntable (202), and a push rod motor (204) is fixed on the outer wall of the bio-micro-electrolysis reaction cell (1). A rack (205) is fixed on the output shaft of the push rod motor (204), and the rack (205) meshes with the gear (2021).

5. A biological microelectrolysis reactor with a floating cathode structure according to claim 4, characterized in that: The backwashing mechanism includes a flushing switch (604) fixed at the top of a section of the third connecting pipe (602) located inside the cuboid frame. A backwashing pipe (605) is connected to the flushing switch (604), and a distribution horizontal pipe (606) is connected to the backwashing pipe (605). The distribution horizontal pipe (606) is connected to the plastic pipe (301), and the plastic pipe (301) is provided with multiple backwashing water outlet holes (3011).

6. The biological micro-electrolysis reactor with floating cathode structure according to claim 5, characterized in that: The flushing switch (604) is internally equipped with a lifting plate (6041), a lifting rod (6042) is fixed at the top of the lifting plate (6041), a second spring (6044) is fixed between the top of the lifting plate (6041) and the inner wall of the top of the flushing switch (604), a first sealing plate (6045) is fixed at the bottom of the lifting plate (6041), and a second sealing plate (6046) is fixed at the bottom of the lifting plate (6041) near the backwash pipe (605).

7. The biological micro-electrolysis reactor with floating cathode structure according to claim 6, characterized in that: The top of the lifting rod (6042) extends movably to the outside of the flushing switch (604) and the screen filter cover (302), and a trigger bar (6043) is fixed on the inner wall of the biological micro-electrolysis reaction tank (1), the position of the trigger bar (6043) corresponding to the lifting rod (6042).

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