Efficient biochemical treatment method and equipment for sewage

Abstract

The invention relates to the technical field of sewage treatment, in particular to an efficient biochemical treatment method and equipment for sewage. According to the technical scheme, the aeration circulating pipe comprises an aeration pipe body, a branch pipe, a sliding barrel, a transmission part, a cleaning scraping brush and oxygen aerators, the branch pipe is fixedly installed on the pipe body of the aeration pipe body, the sliding barrel is slidably connected into the branch pipe, the oxygen aerators are arranged on the pipe body of the aeration pipe body and located in the branch pipe, and the transmission part is connected with the transmission part. And the cleaning scraping brush is slidably connected to the pipe body of the aeration pipe body and close to the oxygen aerator. According to the invention, the sliding cylinder is floated by utilizing bubbles, and when the aeration rate of the oxygen aerator is insufficient, the sliding cylinder moves downwards to enable the cleaning scraping brush to clean the aeration hole of the oxygen aerator, so that floc generated by microorganisms at the aeration hole is removed, the situation that the sewage treatment efficiency of the microorganisms becomes poor due to the fact that the aeration rate is reduced is avoided, and the device is suitable for sewage treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a high-efficiency sewage biochemical treatment method and equipment thereof. Background Art

[0002] Biochemical sewage treatment is a treatment method that uses the metabolism of microorganisms to decompose and transform organic pollutants in sewage. Its main principle is that microorganisms absorb and decompose organic matter (such as carbohydrates, proteins, fats, etc.) in sewage as nutrients under suitable environmental conditions. In this process, part of the organic matter is synthesized into new cell substances by microorganisms, while the other part is oxidized and decomposed into carbon dioxide, water and other simple inorganic substances.

[0003] The invention patent application with the announcement number CN115108631A proposes an aerobic reactor, which reduces the equipment footprint by arranging the aeration zone, the sedimentation zone and the anoxic zone in the vertical direction, making the structure more compact, and increases the dissolved oxygen efficiency by increasing the depth of the aeration zone, thereby reducing the number of aerators and reducing the equipment cost. By arranging the mixed liquid gas lift pipe and the sludge gas lift pipe to replace the sludge return pump and the mixed liquid return pump, the equipment noise and equipment manufacturing cost are reduced, and the gas lift pipe can also pre-aerate the mixed liquid and sludge to improve the reaction efficiency. The gas lift can also play a certain stirring role in the aeration zone, further improving the reaction efficiency.

[0004] Microorganisms in aerobic pools will form flocs during their growth and reproduction. If the flocs are too large or the circulating water flow rate is too slow, these flocs will easily tangle together and adhere. The flocs will be deposited in the circulation pipe. When the flocs block the aerator, the aeration effect will be affected, and the transmission of oxygen will be hindered, resulting in a decrease in the dissolved oxygen concentration in the local area, and the metabolic activity of the microorganisms will also change accordingly. Summary of the invention

[0005] The purpose of the present invention is to propose a highly efficient biochemical treatment method and equipment for sewage in view of the problem in the background technology that flocs produced by microorganisms secrete and block circulation pipes and aerators, resulting in obstruction of oxygen transmission.

[0006] On the one hand, the present application provides a high-efficiency biochemical treatment device for sewage, comprising an aerobic aeration tank, wherein a mixing agitator is rotatably connected inside the aerobic aeration tank, and a biochemical treatment material is fixedly installed inside the aerobic aeration tank and directly above the biochemical treatment material; An aeration circulation pipe comprises an aeration pipe body, a branch pipe, a slide cylinder, a transmission member, a cleaning scraper and an oxygen aerator. The branch pipe is fixedly installed at the pipe body of the aeration pipe body, the inside of the branch pipe is slidably connected to the slide cylinder, the oxygen aerator is arranged at the pipe body of the aeration pipe body and located inside the branch pipe, the cleaning scraper is slidably connected to the cleaning scraper at the pipe body of the aeration pipe body and close to the oxygen aerator, and the bottom of the slide cylinder is connected to the cleaning scraper through a transmission member arranged at the bottom thereof; The aeration pipe body is located below the biochemical treatment material. A plurality of the aeration pipe bodies are provided and are evenly distributed along the aerobic aeration tank. An oxygen supplement component is provided at the pipe body of the aeration pipe body.

[0007] Optionally, a truncated cone-shaped rubber block is fixedly installed on the bottom of the slide cylinder, symmetrically arranged overflow ports are opened on the sides of the slide cylinder, oxygen flows inside the aeration tube body, oxygen bubbles released by the oxygen aerator are attached to the bottom of the slide cylinder, the branch pipe is perpendicular to the horizontal plane, and initially, the overflow port of the slide cylinder extends from the top of the branch pipe.

[0008] Optionally, a plurality of oxygen aerators are provided and are equidistantly distributed in a straight line along the aeration pipe body. The oxygen aerators are evenly distributed below the biochemical treatment material. The biochemical treatment material includes a bottom pad and a top microbial layer. Pipes are fixedly installed on both sides of the aerobic aeration tank. The height of the top microbial layer is lower than the height of the pipes.

[0009] Optionally, the transmission member includes an anti-separation positioning block, a connecting bottom ring and a linkage rod, the connecting bottom ring is fixedly installed on the bottom of the slide cylinder, the two ends of the linkage rod are respectively hinged to the connecting bottom ring and the cleaning brush, and the anti-separation positioning block is fixedly installed on the top of the branch pipe, and the anti-separation positioning block is located on the moving path of the connecting bottom ring.

[0010] Optionally, a closing component is provided inside the branch pipe, and the closing component includes a discharge outlet, a floc shielding arc piece and a suction ring. The discharge outlet is opened at the bottom end of the branch pipe and is located at the extension line of the cleaning brush. The opening of the discharge outlet is larger than the cross-sectional area of ​​the floc shielding arc piece. The inner wall of the branch pipe is slidably connected to the floc shielding arc piece up and down. The bottom of the connecting bottom ring is fixedly installed with an suction ring embedded with a magnet. The suction ring is located directly above the floc shielding arc piece.

[0011] Optionally, a vertical limiting slide groove is provided inside the branch pipe, and when the flocculent shielding arc piece moves to the highest point of the limiting slide groove, there is a gap between the suction ring and the flocculent shielding arc piece.

[0012] Optionally, the oxygen replenishing assembly includes a docking push plate, an extension plate, adjustment teeth, a gear and a one-way control valve, the docking push plate slides on the body of the aeration pipe, the extension plate is fixedly installed on the side of the docking push plate away from the branch pipe, the side of the extension plate is fixedly installed with adjustment teeth, the inside of the aeration pipe body is rotatably connected to the one-way control valve, the top of the one-way control valve is fixedly installed with a gear, and the adjustment teeth are meshed with the gear.

[0013] Optionally, the one-way control valve is located near the oxygen aerator, there is a distance between the gear and the branch pipe, the extension plate is staggered with the branch pipe, a fixed support plate is fixedly installed on the top of the aeration pipe body, the extension plate is Z-shaped, and a guide telescopic rod with a spring installed inside is fixedly connected between the fixed support plate and the extension plate.

[0014] Optionally, a vertical plate is fixedly installed inside the aerobic aeration tank, and the vertical plate separates the aerobic aeration tank into an inlet tank and a biochemical treatment tank. The sewage in the inlet tank flows from under the vertical plate to the biochemical treatment tank. A guide plate is fixedly installed inside the aerobic aeration tank and below the vertical plate, and the top height of the guide plate is higher than the top height of the slide.

[0015] On the other hand, the present application provides a method for efficient biochemical treatment of sewage, which is applied to the above-mentioned efficient biochemical treatment equipment for sewage, and the steps are as follows: S1. When the oxygen aerator is operating normally and aeration produces bubbles, the bubbles adhere to the rubber at the bottom of the slide tube. Under the buoyancy of the bubbles, the slide tube floats up, and the overflow hole releases the bubbles that are not acting on the bottom of the slide tube into the water body; S2. When the aeration port of the oxygen aerator is blocked, there are no bubbles at the bottom of the slide tube. The slide tube moves downward under the action of gravity, so that the cleaning brush cleans the aeration port of the oxygen aerator to remove the flocs produced by microorganisms at the aeration holes, avoiding a reduction in aeration volume and causing the efficiency of microbial sewage treatment to deteriorate.

[0016] S3. When the oxygen aerator is aerating normally, the discharge port is closed by the floc shielding arc sheet to prevent the flocs in the water from entering the branch pipe; when the aeration hole of the oxygen aerator is blocked, the slide tube moves downward under the action of gravity, and the attraction ring at the bottom of the bottom ring attracts the floc shielding arc sheet through the magnet inside it, so that the discharge port is opened, and the cleaning scraper brush slides and extends from the branch pipe to push out the flocs inside the branch pipe; S4. When an oxygen aerator is blocked, increase the opening of the one-way control valve at the adjacent oxygen aerator to urgently increase the oxygen content of the oxygen aerator at the adjacent position to make up for the oxygen loss caused by the blockage and meet the consumption of microorganisms.

[0017] Compared with the prior art, the present invention has at least one of the following beneficial technical effects: When bubbles are generated by aeration during the normal operation of the oxygen aerator, the bubbles adhere to the rubber at the bottom of the slide tube, and the slide tube floats up under the buoyancy of the bubbles. When the aeration port of the oxygen aerator is blocked, no bubbles exist at the bottom of the slide tube, and the slide tube moves downward under the action of gravity, so that the cleaning scraper is used to clean the aeration port of the oxygen aerator to remove flocs generated by microorganisms at the aeration holes, thereby avoiding a reduction in aeration volume and causing the efficiency of microorganisms treating sewage to deteriorate.

[0018] Furthermore, when the oxygen aerator is aerating normally, the discharge port is closed by the floc shielding arc sheet to prevent flocs in the water from entering the branch pipe; when the aeration hole of the oxygen aerator is blocked, the slide tube moves downward under the action of gravity, and the attraction ring at the bottom of the bottom ring attracts the floc shielding arc sheet through the magnet inside it, thereby opening the discharge port, cooperating with the cleaning scraper to slide and extend from the branch pipe to push out the flocs inside the branch pipe.

[0019] Furthermore, after an oxygen aerator is clogged, a cleaning brush is used to clean the aeration holes of the oxygen aerator. The cleaning brush moves and pushes the docking push plate, so that the opening of the one-way control valve at the adjacent oxygen aerator is enlarged, and the oxygen content of aeration at the adjacent oxygen aerator is urgently increased to make up for the oxygen loss caused by the blockage and meet the consumption of microorganisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a highly efficient biochemical sewage treatment device according to an embodiment of the present invention; Figure 2 is a cross-sectional schematic diagram of an aerobic aeration tank in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the aeration pipe body in an embodiment of the present invention; Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the extension plate of part A; Figure 5 A schematic structural diagram of a slide barrel in an embodiment of the present invention is given; Figure 6 A cross-sectional schematic diagram of a branch pipe in an embodiment of the present invention is provided; Figure 7 for Figure 6 An enlarged schematic diagram of the floc-shielding arc structure in part B.

[0021] Figure numerals: 1. aerobic aeration tank; 2. mixing agitator; 3. water inlet tank; 4. biochemical treatment tank; 5. biochemical treatment material; 6. aeration circulation pipe; 61. aeration pipe body; 62. branch pipe; 63. slide cylinder; 64. anti-separation positioning block; 65. connecting bottom ring; 66. linkage rod; 67. cleaning brush; 68. oxygen aerator; 7. closing component; 71. discharge port; 72. limiting slide groove; 73. floc shielding arc plate; 74. suction ring; 8. oxygen replenishment component; 81. docking push plate; 82. extension plate; 83. adjustment teeth; 84. gear; 85. one-way control valve; 86. fixed support plate; 87. guide telescopic rod. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0024] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example 1 This embodiment provides a high-efficiency biochemical treatment device for sewage, such as Figure 1 and Figure 2 As shown, it includes an aerobic aeration tank 1, the interior of the aerobic aeration tank 1 is rotatably connected with a mixing agitator 2, the interior of the aerobic aeration tank 1 is fixedly installed with a biochemical treatment material 5, the biochemical treatment material 5 includes a bottom pad and a top microbial layer, and pipes are fixedly installed on the left and right sides of the aerobic aeration tank 1. The height of the top microbial layer is lower than the height of the pipe. Coarse filtration is performed through the bottom pad to prevent particles in the water from damaging the top microbial layer, and the top microbial layer is used to remove organic matter in the sewage.

[0028] A vertical plate is fixedly installed inside the aerobic aeration tank 1 , and the vertical plate divides the aerobic aeration tank 1 into an inlet tank 3 and a biochemical treatment tank 4 . The sewage in the inlet tank 3 flows into the biochemical treatment tank 4 from below the vertical plate.

[0029] like Figure 5 and Figure 6 The aerobic aeration tank 1 is shown as being internally provided with an aeration circulation pipe 6, which includes an aeration pipe body 61, a branch pipe 62, a slide 63, a transmission part, a cleaning brush 67 and an oxygen aerator 68. The aeration pipe body 61 is located below the biochemical treatment material 5. A plurality of aeration pipe bodies 61 are provided and are evenly distributed along the aerobic aeration tank 1. The branch pipe 62 is fixedly installed at the pipe body of the aeration pipe body 61. The oxygen aerator 68 is provided at the pipe body of the aeration pipe body 61 and inside the branch pipe 62. Oxygen flows inside the aeration pipe body 61. The branch pipe 62 is perpendicular to the horizontal plane, and the inside of the branch pipe 62 is slidably connected to the slide 63.

[0030] A guide plate is fixedly installed inside the aerobic aeration tank 1 and below the vertical plate. The top height of the guide plate is higher than the top height of the slide 63. The sewage entering the biochemical treatment tank 4 will be higher than the oxygen aerator 68, which is convenient for the oxygen aerator 68 to aerate the sewage.

[0031] A truncated cone-shaped rubber block is fixedly installed at the bottom of the slide cylinder 63, and a symmetrically arranged overflow port is opened on the side of the slide cylinder 63. The oxygen in the aeration tube body 61 is aerated through the oxygen aerator 68. After the oxygen is aerated, bubbles are formed in the water to be evenly distributed in the water. When the oxygen aerator 68 aerates normally, oxygen bubbles released by the oxygen aerator 68 are attached to the bottom of the slide cylinder 63. Under the action of the bubbles, the slide cylinder 63 is floated, and the overflow port of the slide cylinder 63 extends from the top of the branch pipe 62. The overflow port is used to discharge the oxygen bubbles.

[0032] A plurality of oxygen aerators 68 are provided and are evenly distributed in a straight line along the aeration pipe body 61. The oxygen aerators 68 are evenly distributed below the biochemical treatment material 5. The plurality of oxygen aerators 68 can evenly distribute oxygen in the sewage inside the aerobic aeration tank 1, so that microorganisms can evenly absorb oxygen to decompose organic matter.

[0033] A cleaning scraper 67 is slidably connected to the aeration tube body 61 and near the oxygen aerator 68. The slide tube 63 is connected to the cleaning scraper 67 through a transmission member arranged at the bottom thereof. The transmission member includes an anti-separation positioning block 64, a connecting bottom ring 65 and a linkage rod 66. The connecting bottom ring 65 is fixedly installed at the bottom of the slide tube 63. The connecting bottom ring 65 and the cleaning scraper 67 are hinged at both ends of the linkage rod 66. The anti-separation positioning block 64 is fixedly installed at the top of the branch pipe 62. The anti-separation positioning block 64 is located on the moving path of the connecting bottom ring 65. The anti-separation positioning block 64 prevents the connecting bottom ring 65 from separating from the branch pipe 62.

[0034] When the aeration port of the oxygen aerator 68 is blocked, there are no bubbles at the bottom of the slide 63, and the slide 63 moves downward under the action of gravity. The slide 63 uses the bottom ring 65 and the linkage rod 66 to push the cleaning brush 67, so that the cleaning brush 67 cleans the aeration port of the oxygen aerator 68.

[0035] In this embodiment, when the oxygen aerator 68 operates normally to generate bubbles, the slide 63 floats up under the buoyancy of the bubbles. When the aeration port of the oxygen aerator 68 is blocked, there are no bubbles at the bottom of the slide 63. The slide 63 moves downward under the action of gravity. The slide 63 uses the bottom ring 65 and the linkage rod 66 to push the cleaning brush 67, so that the cleaning brush 67 cleans the aeration port of the oxygen aerator 68 to remove the flocs produced by microorganisms at the aeration holes, thereby avoiding a reduction in aeration volume and causing the efficiency of microbial sewage treatment to deteriorate.

[0036] Example 2 Based on Example 1, this example proposes a high-efficiency biochemical treatment device for sewage, such as Figure 6 and Figure 7 The branch pipe 62 shown is internally provided with a closing component 7, which includes a discharge port 71, a floc shielding arc piece 73 and a suction ring 74. The discharge port 71 is provided at the bottom end of the branch pipe 62 and is located at the extension line of the cleaning brush 67. The opening of the discharge port 71 is larger than the cross-sectional area of ​​the floc shielding arc piece 73. The inner wall of the branch pipe 62 slides up and down to connect the floc shielding arc piece 73, and the bottom of the bottom ring 65 is fixedly installed with an suction ring 74 embedded with a magnet. The suction ring 74 is located directly above the floc shielding arc piece 73.

[0037] When the oxygen aerator 68 is aerating normally, the discharge port 71 is closed by the floc shielding arc piece 73 to prevent flocs in the water from entering the branch pipe 62. When the slide tube 63 and the connecting bottom ring 65 move downward, the attraction ring 74 at the bottom of the connecting bottom ring 65 attracts the floc shielding arc piece 73 through the magnet inside it, so that the discharge port 71 is opened, and the cleaning brush 67 slides and extends out from the branch pipe 62 to push out the flocs inside the branch pipe 62.

[0038] A vertical limiting chute 72 is provided inside the branch pipe 62. When the floc shielding arc piece 73 moves to the highest point of the limiting chute 72, there is a gap between the suction ring 74 and the floc shielding arc piece 73. The limiting chute 72 prevents the floc shielding arc piece 73 and the suction ring 74 from being adsorbed together. When the bubbles float the slide cylinder 63, the floc shielding arc piece 73 and the suction ring 74 are separated, and the bubbles float the slide cylinder 63.

[0039] In this embodiment, when the oxygen aerator 68 is aerating normally, the discharge port 71 is closed by the floc shielding arc piece 73 to prevent flocs in the water from entering the branch pipe 62; when the aeration hole of the oxygen aerator 68 is blocked, the slide cylinder 63 moves downward under the action of gravity, and the attraction ring 74 at the bottom of the bottom ring 65 attracts the floc shielding arc piece 73 through the magnet inside it, so that the discharge port 71 is opened, and the cleaning scraper 67 slides and extends out from the branch pipe 62 to push out the flocs inside the branch pipe 62. Subsequently, the oxygen aerator 68 resumes aeration and gradually lifts the slide cylinder 63. At this time, the attraction ring 74 is away from the floc shielding arc piece 73, and the floc shielding arc piece 73 closes the discharge port 71 again under the action of gravity.

[0040] Example 3 Based on the above-mentioned embodiment 1 or 2, this embodiment proposes a high-efficiency biochemical treatment device for sewage, such as Figure 3 and Figure 4 As shown, the oxygen supplement component 8 includes a docking push plate 81, an extension plate 82, an adjustment tooth 83, a gear 84 and a one-way control valve 85. The docking push plate 81 slides on the pipe body of the aeration pipe body 61. The extension plate 82 is fixedly installed on the side of the docking push plate 81 away from the branch pipe 62. The side of the extension plate 82 is fixedly installed with the adjustment tooth 83. The inside of the aeration pipe body 61 is rotatably connected to the one-way control valve 85. The top of the one-way control valve 85 is fixedly installed with a gear 84, and the adjustment tooth 83 is meshed with the gear 84.

[0041] After the cleaning scraper 67 is pushed out, the cleaning scraper 67 pushes the docking push plate 81 so that the extension plate 82 pushes the adjustment teeth 83. The adjustment teeth 83 drives the gear 84 to rotate so that the opening of the one-way control valve 85 increases, thereby increasing the amount of oxygen at that position. After one oxygen aerator 68 is blocked, the oxygen content of aeration at the oxygen aerator 68 at the adjacent position is urgently increased to meet the consumption of microorganisms.

[0042] The one-way control valve 85 is located near the oxygen aerator 68, there is a gap between the gear 84 and the branch pipe 62, the extension plate 82 is misaligned with the branch pipe 62, a fixed support plate 86 is fixedly installed on the top of the aeration pipe body 61, the extension plate 82 is in a Z shape, and a guide telescopic rod 87 with a spring installed inside is fixedly connected between the fixed support plate 86 and the extension plate 82. During the movement of the extension plate 82, the extension plate 82 and the fixed support plate 86 compress the guide telescopic rod 87, and the guide telescopic rod 87 resets the extension plate 82 when it is not subjected to force.

[0043] In this embodiment, after an oxygen aerator 68 is blocked, the aeration holes of the oxygen aerator 68 are cleaned by a cleaning brush 67, and the cleaning brush 67 moves and pushes the docking push plate 81, so that the opening of the one-way control valve 85 at the adjacent oxygen aerator 68 is increased, and the oxygen content of the aeration at the adjacent oxygen aerator 68 is urgently increased to make up for the oxygen loss caused by the blockage and meet the consumption of microorganisms.

[0044] This embodiment also proposes a method for efficient biochemical treatment of sewage, which is applied to the above-mentioned efficient biochemical treatment equipment for sewage, and the steps are as follows: S1. When the oxygen aerator 68 is operating normally and aeration produces bubbles, the bubbles adhere to the rubber at the bottom of the slide tube 63. Under the buoyancy of the bubbles, the slide tube 63 floats up, and the overflow hole releases the bubbles that are not acting on the bottom of the slide tube 63 into the water body; S2. When the aeration port of the oxygen aerator 68 is blocked, there are no bubbles at the bottom of the slide tube 63, and the slide tube 63 moves downward under the action of gravity, so that the cleaning brush 67 cleans the aeration port of the oxygen aerator 68 to remove the flocs produced by the microorganisms at the aeration holes, thereby avoiding a reduction in aeration volume and causing the efficiency of microbial sewage treatment to deteriorate.

[0045] S3. When the oxygen aerator 68 is aerating normally, the discharge port 71 is closed by the floc shielding arc piece 73 to prevent the flocs in the water from entering the branch pipe 62; when the aeration hole of the oxygen aerator 68 is blocked, the slide cylinder 63 moves downward under the action of gravity, and the attraction ring 74 at the bottom of the bottom ring 65 attracts the floc shielding arc piece 73 through the magnet inside it, so that the discharge port 71 is opened, and the cleaning scraper 67 slides and extends from the branch pipe 62 to push out the flocs inside the branch pipe 62; S4. After an oxygen aerator 68 is blocked, the aeration holes of the oxygen aerator 68 are cleaned by using the cleaning brush 67. The cleaning brush 67 moves and pushes the docking push plate 81, so that the opening of the one-way control valve 85 at the adjacent oxygen aerator 68 is increased, and the oxygen content of the aeration at the adjacent oxygen aerator 68 is urgently increased to make up for the oxygen loss caused by the blockage and meet the consumption of microorganisms.

[0046] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A highly efficient biochemical sewage treatment device, characterized in that: include: An aerobic aeration tank (1), wherein a mixing agitator (2) is rotatably connected inside the aerobic aeration tank (1), and a biochemical treatment material (5) is fixedly installed inside the aerobic aeration tank (1); An aeration circulation pipe (6), comprising an aeration pipe body (61), a branch pipe (62), a slide cylinder (63), a transmission member, a cleaning scraper (67) and an oxygen aerator (68), wherein the branch pipe (62) is fixedly mounted on the pipe body of the aeration pipe body (61), the interior of the branch pipe (62) is slidably connected to the slide cylinder (63), the oxygen aerator (68) is provided on the pipe body of the aeration pipe body (61) and located inside the branch pipe (62), the cleaning scraper (67) is slidably connected to the pipe body of the aeration pipe body (61) and close to the oxygen aerator (68), and the slide cylinder (63) is connected to the cleaning scraper (67) via a transmission member provided at the bottom thereof; The aeration pipe body (61) is located below the biochemical treatment material (5); a plurality of the aeration pipe bodies (61) are provided and are evenly distributed along the aerobic aeration tank (1); and an oxygen supplement component (8) is provided on the pipe body of the aeration pipe body (61).

2. The high-efficiency biochemical treatment equipment for sewage according to claim 1 is characterized by: A truncated cone-shaped rubber block is fixedly mounted on the bottom of the slide cylinder (63). A symmetrically arranged overflow port is provided on the side of the slide cylinder (63). Oxygen flows inside the aeration tube body (61). Oxygen bubbles released by an oxygen aerator (68) are attached to the bottom of the slide cylinder (63). The branch pipe (62) is perpendicular to the horizontal plane. Initially, the overflow port of the slide cylinder (63) extends from the top of the branch pipe (62).

3. The high-efficiency biochemical treatment equipment for sewage according to claim 2 is characterized in that: A plurality of oxygen aerators (68) are provided and are evenly distributed along the aeration pipe body (61) in a straight line. The oxygen aerators (68) are evenly distributed below the biochemical treatment material (5). The biochemical treatment material (5) comprises a bottom pad and a top microbial layer. Pipes are fixedly installed on both left and right sides of the aerobic aeration tank (1). The height of the top microbial layer is lower than the height of the pipes.

4. The high-efficiency biochemical treatment equipment for sewage according to claim 3 is characterized by: The transmission member comprises an anti-separation positioning block (64), a connecting bottom ring (65) and a linkage rod (66); the connecting bottom ring (65) is fixedly mounted on the bottom of the slide cylinder (63); the connecting bottom ring (65) and a cleaning scraper (67) are respectively hingedly connected at both ends of the linkage rod (66); the anti-separation positioning block (64) is fixedly mounted on the top of the branch pipe (62); and the anti-separation positioning block (64) is located on the moving path of the connecting bottom ring (65).

5. The high-efficiency biochemical treatment equipment for sewage according to claim 4 is characterized by: A sealing component (7) is arranged inside the branch pipe (62), and the sealing component (7) comprises a discharge port (71), a floc shielding arc piece (73) and an attraction ring (74). The discharge port (71) is arranged at the bottom end of the branch pipe (62) and is located at the extension line of the cleaning scraper (67). The opening of the discharge port (71) is larger than the cross-sectional area of ​​the floc shielding arc piece (73). The inner wall of the branch pipe (62) is connected to the floc shielding arc piece (73) by sliding up and down. The bottom of the connecting bottom ring (65) is fixedly installed with an attraction ring (74) embedded with a magnet inside. The attraction ring (74) is located directly above the floc shielding arc piece (73).

6. The high-efficiency biochemical treatment equipment for sewage according to claim 5 is characterized by: A vertically oriented limiting slide groove (72) is provided inside the branch pipe (62), and when the floc shielding arc piece (73) moves to the highest point of the limiting slide groove (72), a distance exists between the attraction ring (74) and the floc shielding arc piece (73).

7. The high-efficiency biochemical treatment equipment for sewage according to claim 6 is characterized by: The oxygen replenishing assembly (8) comprises a docking push plate (81), an extension plate (82), adjustment teeth (83), a gear (84) and a one-way control valve (85); the docking push plate (81) slides on the pipe body of the aeration pipe body (61); the extension plate (82) is fixedly mounted on a side of the docking push plate (81) away from the branch pipe (62); the adjustment teeth (83) are fixedly mounted on a side of the extension plate (82); the inside of the aeration pipe body (61) is rotatably connected to the one-way control valve (85); the gear (84) is fixedly mounted on the top of the one-way control valve (85); and the adjustment teeth (83) are meshingly connected with the gear (84).

8. The high-efficiency biochemical sewage treatment equipment according to claim 7 is characterized by: The one-way control valve (85) is located near the oxygen aerator (68), there is a distance between the gear (84) and the branch pipe (62), the extension plate (82) and the branch pipe (62) are offset, a fixed support plate (86) is fixedly installed on the top of the aeration pipe body (61), the extension plate (82) is in a Z shape, and a guide telescopic rod (87) with a spring installed inside is fixedly connected between the fixed support plate (86) and the extension plate (82).

9. The high-efficiency biochemical treatment equipment for sewage according to claim 8, characterized in that: A vertical plate is fixedly installed inside the aerobic aeration tank (1), and the vertical plate divides the aerobic aeration tank (1) into an inlet tank (3) and a biochemical treatment tank (4). Sewage in the inlet tank (3) flows from below the vertical plate into the biochemical treatment tank (4). A guide plate is fixedly installed inside the aerobic aeration tank (1) and below the vertical plate, and the top height of the guide plate is higher than the top height of the slide cylinder (63).

10. A method for efficient biochemical treatment of sewage, applied to the efficient biochemical treatment equipment for sewage according to claim 9, comprising the following steps: S1. When the oxygen aerator (68) is operating normally and aeration generates bubbles, the bubbles adhere to the rubber at the bottom of the slide tube (63). Under the buoyancy of the bubbles, the slide tube (63) floats up, and the overflow hole releases the bubbles that are not acting on the bottom of the slide tube (63) into the water body; S2. When the aeration port of the oxygen aerator (68) is blocked, there are no bubbles at the bottom of the slide tube (63), and the slide tube (63) moves downward under the action of gravity, so that the cleaning brush (67) cleans the aeration port of the oxygen aerator (68) to remove flocs produced by microorganisms at the aeration holes, thereby avoiding a reduction in aeration volume and causing a decrease in the efficiency of microbial sewage treatment; S3. When the oxygen aerator (68) is aerating normally, the discharge port (71) is closed by the floc shielding arc sheet (73) to prevent flocs in the water from entering the branch pipe (62); when the aeration hole of the oxygen aerator (68) is blocked, the slide cylinder (63) moves downward under the action of gravity, and the attraction ring (74) at the bottom of the bottom ring (65) attracts the floc shielding arc sheet (73) through the magnet inside the slide cylinder (63), thereby opening the discharge port (71), cooperating with the cleaning scraper (67) to slide and extend from the branch pipe (62), and push out the flocs inside the branch pipe (62); S4. After an oxygen aerator (68) is clogged, the aeration holes of the oxygen aerator (68) are cleaned by using a cleaning scraper (67). The cleaning scraper (67) moves and pushes the docking push plate (81), so that the opening of the one-way control valve (85) at the adjacent oxygen aerator (68) is increased, and the oxygen content of the aeration at the adjacent oxygen aerator (68) is urgently increased to compensate for the oxygen loss caused by the blockage and meet the consumption of microorganisms.

Images