MBR (Membrane Biological Reactor) dispersive sewage treatment device with electric flocculation function

Abstract

The invention discloses an MBR (Membrane Biological Reactor) dispersive sewage treatment device with an electric flocculation function. The MBR dispersive sewage treatment device comprises a filtering device; the purifying device is connected with the filtering device, and the purifying device is provided with an electronic flocculator, an electrode plate arranged in the electronic flocculator, a scraping plate abutting against the electrode plate and a driving device for driving the scraping plate to reciprocate relative to the electrode plate. Compared with the prior art, the MBR dispersive sewage treatment device with the electric flocculation function has the advantages that the electrode plate in the electronic flocculator is electrified, so that ions in sewage are subjected to reduction reaction on the electrode plate, the flocculation reaction is promoted, and the purpose of purifying water is achieved. When scale is generated on the electrode plate after long-time reaction, the driving device is started to enable the scraping plate to reciprocate up and down relative to the electrode plate, scale impurities on the electrode plate can be effectively removed, the cleaning efficiency is high, use is convenient, and the problems that manual cleaning is troublesome, cleaning is not thorough, and the electric flocculation electrolytic reaction efficiency is affected are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and more specifically, relates to an MBR decentralized sewage treatment device with an electric flocculation function. Background Art

[0002] Centralized sewage treatment relies heavily on sewage collection pipe networks, which require large investments and high operating costs, making it unsuitable for most towns and rural areas. For this reason, many scholars and industry insiders have reflected on the shortcomings of centralized sewage treatment, a terminal treatment, in terms of recycling resources and energy from sewage, and have shifted their research and application directions to on-site treatment, source control, and on-site recycling of wastewater, resulting in a variety of decentralized treatment technologies and small-scale equipment.

[0003] Decentralized small-scale sewage treatment devices mostly use MBR membrane treatment technology, which is a new water treatment technology that combines biological treatment and membrane separation. It uses membrane components to replace secondary sedimentation tanks, reduce the area of ​​treatment facilities, and reduce the amount of sludge by maintaining a low sludge load. MBR is usually used in conjunction with electrocoagulation sewage treatment technology to overcome the disadvantage of low nitrogen and phosphorus removal rate of independent MBR.

[0004] The electro-flocculation sewage treatment device of the related technology transports the sewage in the wastewater regulating tank to the PH adjustment tank by setting a first water pump, and evenly mixes the PH adjuster into the sewage in the PH adjustment tank, so as to achieve the purpose of adjusting the PH value of the sewage; then the sewage after the PH value is adjusted in the PH adjustment tank flows into the electro-flocculation water treatment device, and the electro-flocculation water treatment device is powered by a power supply. The electro-flocculation water treatment device performs electro-flocculation treatment on the sewage, and the fine particle pollutants in the sewage form floating pollutants. The sewage after the electro-flocculation treatment by the electro-flocculation water treatment device flows into the flotation tank, and the floating pollutants generated by the electro-flocculation are separated from the sewage in the flotation tank, and the sewage after the solid-liquid separation in the flotation tank is transported to the self-cleaning filter by the second water pump, and the impurities in the sewage are filtered out by the self-cleaning filter. The filtered sewage flows into the clean water tank for storage.

[0005] However, during the use of the above-mentioned electro-flocculation sewage treatment device, scale will be generated on the electrode plates during the electro-flocculation reaction, which is usually cleaned manually, which is inconvenient and unclean, and will reduce the electrolysis efficiency. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects of the prior art and provide an MBR decentralized sewage treatment device with an electrocoagulation function, which can remove scale impurities on the electrode plates to avoid affecting the electrocoagulation electrolysis reaction efficiency.

[0007] In order to achieve the above-mentioned object of the invention, the present invention provides an MBR decentralized sewage treatment device with an electric flocculation function, which comprises:

[0008] Filtration device;

[0009] The purification device is connected to the filtering device, and is provided with an electronic flocculator, an electrode plate fixedly arranged in the electronic flocculator, a scraper abutting against the electrode plate, and a driving device for driving the scraper to reciprocate relative to the electrode plate.

[0010] According to an embodiment of the MBR decentralized sewage treatment device with electric flocculation function of the present invention, the driving device includes: a dual-axis motor arranged on the top of the electronic flocculator, a rotating rod fixedly connected to the output end of the dual-axis motor, and a screw fixedly arranged in the electronic flocculator, wherein a driving bevel gear is provided at one end of the rotating rod away from the dual-axis motor, a driven bevel gear meshing with the driving bevel gear is provided at one end of the screw extending out of the top of the electronic flocculator, and the scraper is threadedly connected to the screw.

[0011] According to an embodiment of the MBR decentralized sewage treatment device with electric flocculation function of the present invention, the screw is rotatably connected to the electronic flocculator via a bearing.

[0012] According to an embodiment of the MBR decentralized sewage treatment device with electric flocculation function of the present invention, a support block is provided on the top of the electronic flocculator, a through hole is provided in the support block, and the rotating rod passes through the through hole and is supported on the support block.

[0013] According to one embodiment of the MBR decentralized sewage treatment device with electric flocculation function of the present invention, at least one set of installation grooves is opened on the inner wall of the sewage tank, and a mounting frame is detachably installed in the at least one set of mounting grooves, and a filter screen is clamped on the inner wall of the mounting frame.

[0014] According to an embodiment of the MBR decentralized sewage treatment device with electric flocculation function of the present invention, a lifting handle is provided on the top of the installation frame.

[0015] According to an embodiment of the MBR decentralized sewage treatment device with electric flocculation function of the present invention, fixing grooves are provided on the inner walls on both sides of the installation frame, a reset spring is fixedly connected to the inner wall of the fixing groove, a fixing block is fixedly connected to the top of the reset spring, and positioning grooves are provided on the outer walls on both sides of the filter screen, and the positioning grooves are at the same horizontal height as the fixing grooves and are matched in shape and size.

[0016] According to an embodiment of the MBR decentralized sewage treatment device with electric flocculation function of the present invention, the top of the fixed block is semicircular.

[0017] According to one embodiment of the MBR decentralized sewage treatment device with electric flocculation function of the present invention, a sewage inlet pipe is fixedly connected to the outer wall of one side of the sewage tank, and a sewage discharge pipe is fixedly connected to the outer wall of the other side, and the end of the sewage discharge pipe away from the sewage tank is fixedly connected to the sewage inlet end of the electronic flocculator.

[0018] Compared with the prior art, the MBR decentralized sewage treatment device with electric flocculation function of the present invention energizes the electrode plates in the electronic flocculator to cause ions in the sewage to undergo reduction reaction on the electrode plates, thereby promoting flocculation reaction and achieving the purpose of purifying water quality. When scale is generated on the electrode plates after a long reaction, the drive device is started to make the scraper move up and down relative to the electrode plates, which can effectively remove scale impurities on the electrode plates, has high cleaning efficiency, is easy to use, and avoids the trouble of manual cleaning, and the problem of incomplete cleaning affecting the efficiency of the electro-flocculation electrolysis reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a detailed description of the MBR decentralized sewage treatment device with electric flocculation function of the present invention in conjunction with the accompanying drawings and specific embodiments, wherein:

[0020] Figure 1 It is a structural schematic diagram of the MBR decentralized sewage treatment device with electric flocculation function of the present invention.

[0021] Figure 2 It is a schematic structural diagram of a filtering device in the MBR decentralized sewage treatment device with an electro-flocculation function of the present invention.

[0022] Figure 3 It is a cross-sectional schematic diagram of a filtering device in the MBR decentralized sewage treatment device with an electric flocculation function of the present invention.

[0023] Figure 4 for Figure 3 An enlarged schematic diagram of the circled portion A in the middle.

[0024] Figure 5 It is a schematic structural diagram of a purification device in the MBR decentralized sewage treatment device with electric flocculation function of the present invention.

[0025] in:

[0026] 1--Filter device; 101--Sewage tank; 102--Mounting slot; 103--Mounting frame; 104--Filter screen; 105--Lifting handle; 106--Fixed groove; 107--Reset spring; 108--Fixed block; 109--Positioning groove;

[0027] 2--Purification device; 201--Electronic flocculator; 202--Electrode plate; 203--Dual-axis motor; 204--Rotating rod; 205--Driving bevel gear; 206--Driven bevel gear; 207--Screw; 208--Scraper. DETAILED DESCRIPTION

[0028] In order to make the invention purpose, technical scheme and technical effect of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the present invention, not for limiting the present invention.

[0029] Please refer to Figures 1 to 5 As shown, the MBR decentralized sewage treatment device with electric flocculation function of the present invention comprises:

[0030] Filter device 1;

[0031] The purification device 2 is connected to the filtering device 1 and is provided with an electronic flocculator 201, an electrode plate 202 arranged in the electronic flocculator 201, a scraper 208 abutting against the electrode plate 202, and a driving device for driving the scraper 208 to reciprocate relative to the electrode plate 202.

[0032] Please refer to Figures 1 to 4 As shown, the filtering device 1 includes a sewage tank 101 and a filter screen 104 that can be detachably installed in the sewage tank 101. The inner wall of the sewage tank 101 is provided with at least one set of mounting grooves 102, and a mounting frame 103 is slidably connected inside the mounting grooves 102, and the filter screen 104 is clamped on the inner wall of the mounting frame 103. A lifting handle 105 is fixedly connected to the top of the mounting frame 103, and the mounting frame 103 can be pulled out of the sewage tank 101 by the lifting handle 105, so that the staff can replace and clean the filter screen 104.

[0033] In the illustrated embodiment, multiple groups of filter nets 104 are arranged at intervals in the sewage tank 101. The multiple groups of filter nets 104 can filter the sewage and effectively filter large particles in the sewage to prevent other pollutants or impurities such as dust and particles from entering the electronic flocculator 201 and causing blockage inside the electronic flocculator 201.

[0034] Please refer to Figure 4 As shown, the inner walls of both sides of the installation frame 103 are provided with fixing grooves 106, the inner walls of the fixing grooves 106 are fixedly connected with a return spring 107, and the top of the return spring 107 is fixedly connected with a fixing block 108. In the illustrated embodiment, the top of the fixing block 108 is semicircular. The outer walls of both sides of the filter screen 104 are provided with positioning grooves 109, which are at the same level as the fixing grooves 106 and have the same shape and size.

[0035] By installing the filter 104 into the installation frame 103, when the positioning groove 109 on the filter 104 is aligned with the fixing groove 106 on the installation frame 103, the return spring 107 in the fixing groove 106 exerts an outward force on the fixing block 108, so that the fixing block 108 is separated from the fixing groove 106 and inserted into the positioning groove 109, thereby completing the installation and fixing of the filter 104. By pulling the filter 104 outward, the fixing block 108 is squeezed and retracted into the fixing groove 106, thereby releasing the limit fixation of the filter 104, and facilitating the disassembly and assembly of the filter 104 by the staff.

[0036] Please refer to Figure 1 and Figure 5 As shown, the purification device 2 includes an electronic flocculator 201, an electrode plate 202 disposed in the electronic flocculator 201, a scraper 208 attached to and in contact with the reaction surface of the electrode plate 202, and a driving device for driving the scraper 208 to reciprocate up and down relative to the electrode plate 202.

[0037] exist Figure 5 In the illustrated embodiment, the driving device comprises a dual-axis motor 203 disposed at the top of the sub-flocculator 201, a rotating rod 204 fixedly connected to the output end of the dual-axis motor 203, and a screw 207 fixedly disposed in the electronic flocculator 201, wherein an active bevel gear 205 is disposed at one end of the rotating rod 204 away from the dual-axis motor 203, a driven bevel gear 206 meshing with the active bevel gear 205 is disposed at one end of the screw 207 extending out of the top of the electronic flocculator 201, and a scraper 208 is threadedly connected to the screw 207.

[0038] By electrifying the electrode plate 202 in the electronic flocculator 201, the ions in the sewage undergo a reduction reaction on the electrode plate 202, which can promote the flocculation reaction and achieve the purpose of purifying the water quality. After a long reaction, scale is generated on the electrode plate 202. By starting the dual-axis motor 203 to drive the rotating rod 204 to rotate, the rotating rotating rod 204 drives the active bevel gear 205 to rotate, the active bevel gear 205 drives the meshing driven bevel gear 206 to rotate, and the driven bevel gear 206 drives the screw 207 to rotate. The rotation of the screw 207 also causes the scraper 208 to move up and down. The scraper 208 can effectively remove the scale impurities generated on the electrode plate 202 through the up and down reciprocating motion. The cleaning efficiency is high and the use is convenient, avoiding the trouble of manual cleaning, the problem of not cleaning thoroughly, and affecting the efficiency of the electro-flocculation electrolysis reaction.

[0039] exist Figure 5In the embodiment shown, a support block (not marked) is provided on the rotating rod 204, and the support block is fixedly connected to the top of the electronic flocculator 201. A through hole (not marked) is provided in the support block, and the rotating rod 204 passes through the through hole and is supported on the support block. By providing the support block, the support block can support and limit the rotating rod 204, so that the driving bevel gear 205 will not be misaligned when the rotating rod 204 rotates, and the meshing of the driving bevel gear 205 and the driven bevel gear 206 is ensured.

[0040] According to a preferred embodiment of the present invention, one end of the screw 207 away from the driven bevel gear 206 passes through the top of the electronic flocculator 201 and extends into the inside of the electronic flocculator 201. The screw 207 is rotatably connected to the electronic flocculator 201 through a bearing. The lower end of the screw 207 extends into the inside of the electronic flocculator 201, so that the screw 207 drives the scraper 208 to move up and down inside the electronic flocculator 201.

[0041] Please continue to refer to Figure 1 As shown, according to a preferred embodiment of the present invention, a sewage inlet pipe (not marked) is fixedly connected to one side outer wall of the sewage tank 101, and a sewage discharge pipe (not marked) is fixedly connected to the other side outer wall, and one end of the sewage discharge pipe away from the sewage tank 101 is fixedly connected to the sewage inlet end (not marked) of the electronic flocculator 201. In this arrangement, sewage is input into the sewage tank 101 through the sewage inlet pipe, and large particles and other solids in the sewage are filtered through the filter 104. The filtered sewage is discharged into the electronic flocculator 201 through the sewage discharge pipe, and the flocculation reaction is performed to purify the water quality of the sewage.

[0042] Combined with the above detailed description of the embodiment of the present invention, it can be seen that, compared with the prior art, the MBR decentralized sewage treatment device with electric flocculation function of the present invention energizes the electrode plate 202 in the electronic flocculator 201, so that the ions in the sewage undergo a reduction reaction on the electrode plate 202 to promote the flocculation reaction, thereby achieving the purpose of purifying the water quality. When scale is generated on the electrode plate 202 after a long reaction, the scraper 208 can be effectively removed by starting the driving device to reciprocate up and down relative to the electrode plate 202. The cleaning efficiency is high and the use is convenient, avoiding the trouble of manual cleaning, the problem of incomplete cleaning, and the effect on the efficiency of the electrolysis reaction of the electric flocculation.

[0043] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. An MBR decentralized sewage treatment device with electric flocculation function, characterized in that: include: Filtration device; The purification device is connected to the filtering device, and is provided with an electronic flocculator, an electrode plate arranged in the electronic flocculator, a scraper abutting against the electrode plate, and a driving device for driving the scraper to reciprocate relative to the electrode plate.

2. The MBR decentralized sewage treatment device with electric flocculation function according to claim 1 is characterized in that: The driving device includes: a double-axis motor arranged on the top of the electronic flocculator, a rotating rod fixedly connected to the output end of the double-axis motor, and a screw fixedly arranged in the electronic flocculator, wherein a driving bevel gear is arranged at one end of the rotating rod away from the double-axis motor, a driven bevel gear meshing with the driving bevel gear is arranged at one end of the screw extending out of the top of the electronic flocculator, and the scraper is threadedly connected to the screw.

3. The MBR decentralized sewage treatment device with electric flocculation function according to claim 2 is characterized in that: The screw is rotatably connected to the electronic flocculator via a bearing.

4. The MBR decentralized sewage treatment device with electric flocculation function according to claim 1 is characterized in that: A support block is arranged on the top of the electronic flocculator, a through hole is arranged in the support block, and the rotating rod passes through the through hole and is supported on the support block.

5. The MBR decentralized sewage treatment device with electric flocculation function according to claim 1 is characterized in that: The inner wall of the sewage tank is provided with at least one group of mounting grooves, a mounting frame is detachably mounted in the at least one group of mounting grooves, and a filter screen is clamped on the inner wall of the mounting frame.

6. The MBR decentralized sewage treatment device with electric flocculation function according to claim 5 is characterized in that: A lifting handle is provided on the top of the installation frame.

7. The MBR decentralized sewage treatment device with electric flocculation function according to claim 5 is characterized in that: The inner walls on both sides of the installation frame are provided with fixing grooves, the inner walls of the fixing grooves are fixedly connected with reset springs, the tops of the reset springs are fixedly connected with fixing blocks, and the outer walls on both sides of the filter screen are provided with positioning grooves, the positioning grooves and the fixing grooves are at the same level and have matching shapes and sizes.

8. The MBR decentralized sewage treatment device with electric flocculation function according to claim 7 is characterized in that: The top of the fixing block is semicircular.

9. The MBR decentralized sewage treatment device with electric flocculation function according to any one of claims 1 to 8, characterized in that: One side outer wall of the sewage tank is fixedly connected with a sewage inlet pipe, and the other side outer wall is fixedly connected with a sewage discharge pipe. The electronic flocculator is provided with a sewage inlet end, and one end of the sewage discharge pipe away from the sewage tank is fixedly connected to the sewage inlet end of the electronic flocculator.

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