A method and equipment for efficient biochemical treatment of sewage

Abstract

The present invention relates to the technical field of sewage treatment, and particularly relates to a method and equipment for efficient biochemical treatment of sewage. Its technical solution includes: an aeration circulation pipe, which comprises an aeration pipe body, a branch pipe, a sliding cylinder, a transmission member, a cleaning brush and an oxygen aerator. A branch pipe is fixedly installed at the pipe body of the aeration pipe body. The sliding cylinder is slidably connected inside the branch pipe. An oxygen aerator is arranged at the pipe body of the aeration pipe body and inside the branch pipe. The cleaning brush is slidably connected at the pipe body of the aeration pipe body and near the oxygen aerator. The present invention utilizes the buoyancy of bubbles to lift the sliding cylinder. When the aeration volume of the oxygen aerator is insufficient, the sliding cylinder moves downward to enable the cleaning brush to clean at the aeration port of the oxygen aerator, so as to remove the flocs generated by microorganisms at the aeration holes, and avoid the reduction of the aeration volume, resulting in the deterioration of the efficiency of microorganism in treating sewage, and is applicable to the treatment of sewage.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly to a method and equipment for efficient biochemical treatment of sewage. Background Art

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

[0003] The invention patent application with the publication number CN115108631A proposes an aerobic reactor. By arranging the aeration zone, sedimentation zone, and anoxic zone in the vertical direction, the floor area of the equipment is reduced, making the structure more compact. And by increasing the depth of the aeration zone, the dissolved oxygen efficiency is increased, thereby reducing the number of aerators and lowering the equipment cost. By setting up a mixed liquid air lift pipe and a sludge air lift pipe to replace the sludge return pump and the mixed liquid return pump, the equipment noise and the equipment manufacturing cost are reduced. Moreover, the air lift pipe can also pre-aerate the mixed liquid and sludge to improve the reaction efficiency, and the air lift can also play a certain stirring role in the aeration zone to further improve the reaction efficiency.

[0004] During the growth and reproduction process of microorganisms in the aerobic tank, flocs will be formed. If the flocs are too large or the circulating water flow rate is too slow, these flocs are very easy to entangle and adhere together. The flocs will deposit in the circulation pipe. When the flocs block the aerator, the aeration effect will be affected, the transmission of oxygen will be hindered, resulting in a decrease in the dissolved oxygen concentration in the local area, and the metabolic activities of microorganisms will also change accordingly. Summary of the Invention

[0005] The purpose of the present invention is to address the problem in the background art that the oxygen transmission is hindered due to the flocs secreted by microorganisms blocking the circulation pipe and the aerator, and to propose a method and equipment for efficient biochemical treatment of sewage.

[0006] On the one hand, the present application provides an equipment for efficient biochemical treatment of sewage, including an aerobic aeration tank. 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.

[0007] The aeration circulation pipe includes an aeration pipe body, a branch pipe, a sliding cylinder, a transmission member, a cleaning brush, and an oxygen aerator. A branch pipe is fixedly installed at the pipe body of the aeration pipe body. The sliding cylinder is slidably connected inside the branch pipe. An oxygen aerator is provided at the pipe body of the aeration pipe body and inside the branch pipe. The cleaning brush is slidably connected to the pipe body of the aeration pipe body near the oxygen aerator. The bottom of the sliding cylinder is connected to the cleaning brush through a transmission member provided at its bottom.

[0008] The aeration pipe body is located below the biochemical treatment material. A plurality of aeration pipe bodies are provided and are equidistantly distributed along the aerobic aeration tank. An oxygen replenishment component is provided at the pipe body of the aeration pipe body.

[0009] Optionally, a frustum-shaped rubber block is fixedly installed at the bottom of the sliding cylinder. Symmetrically arranged air overflow ports are provided on the side of the sliding cylinder. Oxygen flows inside the aeration pipe body. Oxygen bubbles released by the oxygen aerator adhere to the bottom of the sliding cylinder. The branch pipe is perpendicular to the horizontal plane. Initially, the air overflow ports of the sliding cylinder extend from the top of the branch pipe.

[0010] Optionally, a plurality of oxygen aerators are provided and are linearly equidistantly distributed along the aeration pipe body. The oxygen aerators are evenly distributed below the biochemical treatment material. The biochemical treatment material includes a bottom padding and a top microbial layer. Pipes are fixedly installed on both the left and right sides of the aerobic aeration tank. The height of the top microbial layer is lower than the height of the pipes.

[0011] Optionally, the transmission member includes an anti-disengagement positioning block, a linking bottom ring, and a linkage rod. The linking bottom ring is fixedly installed at the bottom of the sliding cylinder. The two ends of the linkage rod are respectively hinged to the linking bottom ring and the cleaning brush. The anti-disengagement positioning block is fixedly installed at the top of the branch pipe. The anti-disengagement positioning block is located on the moving path of the linking bottom ring.

[0012] Optionally, a closing component is provided inside the branch pipe. The closing component includes a discharge port, a floc blocking arc piece, and an attracting ring. A discharge port is opened at the bottom end of the branch pipe and at the extension line of the cleaning brush. The opening of the discharge port is larger than the cross-sectional area of the floc blocking arc piece. The floc blocking arc piece is slidably connected to the inner wall of the branch pipe up and down. An attracting ring with a magnet embedded inside is fixedly installed at the bottom of the linking bottom ring. The attracting ring is located directly above the floc blocking arc piece.

[0013] Optionally, a vertically oriented limiting sliding groove is opened inside the branch pipe. When the floc blocking arc piece moves to the highest position of the limiting sliding groove, there is a spacing between the attracting ring and the floc blocking arc piece.

[0014] Optionally, the oxygen supplement component 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 pipe body of the aeration pipe. An extension plate is fixedly installed on the side of the docking push plate away from the branch pipe. Adjustment teeth are fixedly installed on the side of the extension plate. The one-way control valve is rotatably connected inside the aeration pipe body. A gear is fixedly installed on the top of the one-way control valve. The adjustment teeth are meshed with the gear.

[0015] Optionally, the one-way control valve is located near the oxygen aerator. There is a spacing between the gear and the branch pipe. The extension plate is misaligned 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. A guiding telescopic rod with a spring installed inside is fixedly connected between the fixed support plate and the extension plate.

[0016] Optionally, a vertical plate is fixedly installed inside the aerobic aeration tank. The vertical plate divides the aerobic aeration tank into an inlet water tank and a biochemical treatment tank. The sewage in the inlet water tank flows from below the vertical plate into the biochemical treatment tank. A guide plate is fixedly installed inside the aerobic aeration tank and below the vertical plate. The top height of the guide plate is higher than the top height of the sliding cylinder.

[0017] On the other hand, the present application provides a method for efficient biochemical treatment of sewage, which is applied to the above-mentioned sewage efficient biochemical treatment equipment, and the steps are as follows:

[0018] S1. When the oxygen aerator is operating normally to generate bubbles, the bubbles adhere to the rubber at the bottom of the sliding cylinder. Under the buoyancy of the bubbles, the sliding cylinder floats up, and the overflow holes emit the bubbles that do not act on the bottom of the sliding cylinder into the water body.

[0019] S2. When the aeration port of the oxygen aerator is blocked, there are no bubbles at the bottom of the sliding cylinder. The sliding cylinder moves downward under the action of gravity, so that the cleaning brush scrapes at the aeration port of the oxygen aerator to remove the flocs generated by microorganisms at the aeration holes, avoiding a decrease in the aeration volume and resulting in a deterioration in the efficiency of microorganisms in treating sewage.

[0020] S3. When the oxygen aerator is aerating normally, the discharge port is closed by the floc blocking arc plate to prevent water flocs from entering the branch pipe; when the aeration holes of the oxygen aerator are blocked, the sliding cylinder moves downward under the action of gravity. The attracting ring at the bottom of the connecting bottom ring attracts the floc blocking arc plate through the magnet inside it, so that the discharge port is opened, and the cleaning brush slides and extends out from the branch pipe to push out the flocs inside the branch pipe.

[0021] S4. After one oxygen aerator is blocked, increase the opening of the one-way control valve at the adjacent oxygen aerator, and urgently increase the oxygen content of the aeration at the adjacent oxygen aerator to make up for the lack of oxygen caused by the blockage and meet the consumption of microorganisms.

[0022] Compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0023] When the oxygen aerator operates normally to generate bubbles during aeration, the bubbles adhere to the rubber at the bottom of the sliding cylinder. Under the buoyancy of the bubbles, the sliding cylinder floats. When the aeration port of the oxygen aerator is blocked, there are no bubbles at the bottom of the sliding cylinder, and the sliding cylinder moves downward under the action of gravity, so that the cleaning brush cleans at the aeration port of the oxygen aerator to remove the flocs generated by microorganisms at the aeration holes, avoiding the reduction of the aeration volume and the deterioration of the efficiency of microorganism sewage treatment.

[0024] Further, when the oxygen aerator is aerating normally, the discharge port is closed by the floc blocking arc plate to prevent the flocs in the water from entering the branch pipe; when the aeration holes of the oxygen aerator are blocked, the sliding cylinder moves downward under the action of gravity, and the attraction ring at the bottom of the connecting bottom ring attracts the floc blocking arc plate through the magnet inside it, so that the discharge port is opened, and the cleaning brush slides and extends out from the branch pipe to push out the flocs inside the branch pipe.

[0025] Furthermore, after one oxygen aerator is blocked, the 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 increases, and the oxygen content of the aeration at the adjacent oxygen aerator is increased emergently to make up for the lack of oxygen caused by the blockage and meet the consumption of microorganisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall structural schematic diagram of the sewage high-efficiency biochemical treatment equipment according to the embodiment of the present invention;

[0027] Figure 2 is the cross-sectional schematic diagram of the aerobic aeration tank in the embodiment of the present invention;

[0028] Figure 3 is the structural schematic diagram of the aeration pipe body in the embodiment of the present invention;

[0029] Figure 4 is Figure 3 the enlarged schematic diagram of the A part extension plate structure;

[0030] Figure 5 shows the structural schematic diagram of the sliding cylinder in the embodiment of the present invention;

[0031] Figure 6 shows the cross-sectional schematic diagram of the branch pipe in the embodiment of the present invention;

[0032] Figure 7 is Figure 6 the enlarged schematic diagram of the B part floc blocking arc plate structure.

[0033] Reference numerals: 1, aerobic aeration tank; 2, mixing agitator; 3, inlet tank; 4, biochemical treatment tank; 5, biochemical treatment material; 6, aeration circulation pipe; 61, aeration pipe body; 62, branch pipe; 63, sliding cylinder; 64, anti-separation positioning block; 65, connecting bottom ring; 66, linkage rod; 67, cleaning brush; 68, oxygen aerator; 7, sealing assembly; 71, discharge port; 72, limiting chute; 73, floc shielding arc plate; 74, suction ring; 8, oxygen supplement assembly; 81, docking push plate; 82, extension plate; 83, adjusting teeth; 84, gear; 85, one-way control valve; 86, fixed support plate; 87, guiding telescopic rod. Detailed implementation manners

[0034] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0035] Generally, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention.

[0036] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "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, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] Embodiment 1

[0040] This embodiment provides an efficient biochemical sewage treatment device, as Figure 1 and Figure 2 shown. It includes an aerobic aeration tank 1, inside which a mixing agitator 2 is rotatably connected. Inside the aerobic aeration tank 1, a biochemical treatment material 5 is fixedly installed. The biochemical treatment material 5 includes a bottom padding and a top microbial layer. Pipes are fixedly installed on both the left and right sides of the aerobic aeration tank 1. The height of the top microbial layer is lower than that of the pipes. Coarse filtration is carried out through the bottom padding 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.

[0041] A vertical plate is fixedly installed inside the aerobic aeration tank 1, which divides the aerobic aeration tank 1 into an inlet water tank 3 and a biochemical treatment tank 4. The sewage in the inlet water tank 3 flows from below the vertical plate into the biochemical treatment tank 4.

[0042] As Figure 5 and Figure 6 shown, an aeration circulation pipe 6 is arranged inside the aerobic aeration tank 1. The aeration circulation pipe 6 includes an aeration pipe body 61, a branch pipe 62, a sliding cylinder 63, a transmission member, 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 equidistantly distributed along the aerobic aeration tank 1. A branch pipe 62 is fixedly installed at the pipe body of the aeration pipe body 61. An oxygen aerator 68 is provided inside 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 a sliding cylinder 63 is slidably connected inside the branch pipe 62.

[0043] 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 sliding cylinder 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.

[0044] A frustum-shaped rubber block is fixedly installed at the bottom of the sliding cylinder 63. Symmetrically arranged air overflow ports are provided on the side of the sliding cylinder 63. The oxygen in the aeration pipe body 61 is aerated through the oxygen aerator 68, and oxygen bubbles will be formed in the water after aeration and are evenly distributed in the water. When the oxygen aerator 68 is aerating normally, oxygen bubbles released by the oxygen aerator 68 adhere to the bottom of the sliding cylinder 63. Under the action of the bubbles, the sliding cylinder 63 is floated up, and the air overflow ports of the sliding cylinder 63 extend out from the top of the branch pipe 62. The air overflow ports are used to discharge the oxygen bubbles.

[0045] A plurality of oxygen aerators 68 are provided and are evenly distributed at equal intervals 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 enable oxygen to be evenly distributed in the sewage inside the aerobic aeration tank 1, so that microorganisms can evenly absorb oxygen to decompose organic matter.

[0046] A cleaning brush 67 is slidably connected to the pipe body of the aeration pipe body 61 and near the oxygen aerator 68. The sliding cylinder 63 is connected to the cleaning brush 67 through a transmission member provided at its bottom. The transmission member includes an anti-disengagement 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 sliding cylinder 63. The two ends of the linkage rod 66 are respectively hinged to the connecting bottom ring 65 and the cleaning brush 67. The anti-disengagement positioning block 64 is fixedly installed at the top of the branch pipe 62. The anti-disengagement positioning block 64 is located on the moving path of the connecting bottom ring 65, and the anti-disengagement positioning block 64 prevents the connecting bottom ring 65 from disengaging from the branch pipe 62.

[0047] When the aeration port of the oxygen aerator 68 is blocked, there are no bubbles at the bottom of the sliding cylinder 63. The sliding cylinder 63 moves downward under the action of gravity. The sliding cylinder 63 uses the connecting bottom ring 65 and the linkage rod 66 to push the cleaning brush 67 to clean the aeration port of the oxygen aerator 68.

[0048] In this embodiment, when the oxygen aerator 68 operates normally and generates bubbles, the sliding cylinder 63 floats 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 sliding cylinder 63. The sliding cylinder 63 moves downward under the action of gravity. The sliding cylinder 63 uses the connecting bottom ring 65 and the linkage rod 66 to push the cleaning brush 67 to clean the aeration port of the oxygen aerator 68, so as to remove the flocs generated by microorganisms at the aeration holes and avoid the reduction of the aeration volume, resulting in a poor efficiency of the microorganisms in treating sewage.

[0049] Embodiment 2

[0050] Based on Embodiment 1, this embodiment proposes a sewage high-efficiency biochemical treatment device. As Figure 6 and Figure 7 shown, a closing component 7 is provided inside the branch pipe 62. The closing component 7 includes a discharge port 71, a floc blocking arc piece 73 and an attracting ring 74. A discharge port 71 is opened at the bottom end of the branch pipe 62 and 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 blocking arc piece 73. The floc blocking arc piece 73 is slidably connected to the inner wall of the branch pipe 62 up and down. An attracting ring 74 with a magnet embedded inside is fixedly installed at the bottom of the connecting bottom ring 65. The attracting ring 74 is located directly above the floc blocking arc piece 73.

[0051] When the oxygen aerator 68 is aerating normally, the discharge port 71 is closed by the floc-blocking arc plate 73 to prevent flocs in the water from entering the branch pipe 62. When the sliding cylinder 63 and the connecting bottom ring 65 move downward, the attracting ring 74 at the bottom of the connecting bottom ring 65 attracts the floc-blocking arc plate 73 through the magnet inside it, so that the discharge port 71 is opened, and the cleaning brush 67 slides and extends out of the branch pipe 62 to push out the flocs inside the branch pipe 62.

[0052] A vertically oriented limiting sliding groove 72 is provided inside the branch pipe 62. When the floc-blocking arc plate 73 moves to the highest point of the limiting sliding groove 72, there is a gap between the attracting ring 74 and the floc-blocking arc plate 73. The limiting sliding groove 72 prevents the floc-blocking arc plate 73 and the attracting ring 74 from being adsorbed together, and separates the floc-blocking arc plate 73 and the attracting ring 74 when the air bubbles float up the sliding cylinder 63, and the air bubbles float up the sliding cylinder 63.

[0053] In this embodiment, when the oxygen aerator 68 is aerating normally, the discharge port 71 is closed by the floc-blocking arc plate 73 to prevent flocs in the water from entering the branch pipe 62; when the air holes of the oxygen aerator 68 are blocked, the sliding cylinder 63 moves downward under the action of gravity, and the attracting ring 74 at the bottom of the connecting bottom ring 65 attracts the floc-blocking arc plate 73 through the magnet inside it, so that the discharge port 71 is opened, and the cleaning brush 67 slides and extends out of the branch pipe 62 to push out the flocs inside the branch pipe 62. Subsequently, when the oxygen aerator 68 resumes aeration and gradually lifts the sliding cylinder 63, at this time the attracting ring 74 moves away from the floc-blocking arc plate 73, and the floc-blocking arc plate 73 closes the discharge port 71 again under the action of gravity.

[0054] Embodiment 3

[0055] Based on the above Embodiment 1 or 2, this embodiment proposes a sewage high-efficiency biochemical treatment device, as Figure 3 and Figure 4 shown, the oxygen supply component 8 includes 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. An extension plate 82 is fixedly installed on the side of the docking push plate 81 away from the branch pipe 62. Adjustment teeth 83 are fixedly installed on the side of the extension plate 82. The one-way control valve 85 is rotatably connected inside the aeration pipe body 61, and a gear 84 is fixedly installed on the top of the one-way control valve 85. The adjustment teeth 83 are meshed with the gear 84.

[0056] After the cleaning brush 67 is pushed out, the cleaning brush 67 pushes the docking push plate 81, causing the extension plate 82 to push the adjustment teeth 83. The adjustment teeth 83 drive the gear 84 to rotate, thereby increasing the opening of the one-way control valve 85, increasing the amount of oxygen at this position. After an oxygen aerator 68 is blocked, the oxygen content of the aeration at the adjacent oxygen aerator 68 is increased emergently to meet the consumption of microorganisms.

[0057] The one-way control valve 85 is located near the oxygen aerator 68. There is a spacing 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 at the top of the aeration pipe body 61. The extension plate 82 is Z-shaped, and a guiding 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 guiding telescopic rod 87, and the guiding telescopic rod 87 resets the extension plate 82 when not under force.

[0058] In this embodiment, after an oxygen aerator 68 is blocked, the cleaning brush 67 is used to clean the air holes of the oxygen aerator 68. 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 increases, and the oxygen content of the aeration at the adjacent oxygen aerator 68 is increased emergently to make up for the missing oxygen caused by the blockage and meet the consumption of microorganisms.

[0059] This embodiment also proposes a method for efficient biochemical treatment of sewage, which is applied to the above-mentioned sewage efficient biochemical treatment equipment, and its steps are as follows:

[0060] S1. When the oxygen aerator 68 is operating normally and generating bubbles, the bubbles adhere to the rubber at the bottom of the sliding cylinder 63. Under the buoyancy of the bubbles, the sliding cylinder 63 floats up, and the overflow holes emit the bubbles that do not act on the bottom of the sliding cylinder 63 into the water body;

[0061] S2. When the air outlet of the oxygen aerator 68 is blocked, there are no bubbles at the bottom of the sliding cylinder 63. The sliding cylinder 63 moves downward under the action of gravity, so that the cleaning brush 67 cleans at the air outlet of the oxygen aerator 68 to remove the flocs generated by microorganisms at the air holes, avoiding a decrease in the aeration volume and resulting in a poor efficiency of microorganism sewage treatment.

[0062] S3. When the oxygen aerator 68 is aerating normally, the discharge port 71 is closed by the floc blocking arc piece 73 to prevent water flocs from entering the branch pipe 62; when the air holes of the oxygen aerator 68 are blocked, the sliding cylinder 63 moves downward under the action of gravity, and the attracting ring 74 at the bottom of the connecting bottom ring 65 attracts the floc blocking 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 of the branch pipe 62 to push out the flocs inside the branch pipe 62;

[0063] S4. After an oxygen aerator 68 is blocked, use the cleaning brush 67 to clean the air holes of the oxygen aerator 68. 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 oxygen aerator 68 at the adjacent position increases, and the oxygen content of the aeration at the oxygen aerator 68 at the adjacent position is increased emergently to make up for the oxygen missing due to the blockage and meet the consumption of microorganisms.

[0064] The above specific embodiments are only several alternative embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An efficient biochemical sewage treatment device, characterized in that, Including: An aerobic aeration tank (1), inside which a mixing agitator (2) is rotatably connected, and a biochemical treatment material (5) is fixedly installed inside the aerobic aeration tank (1); An aeration circulation pipe (6), including an air pipe body (61), a branch pipe (62), a sliding cylinder (63), a transmission member, a cleaning brush (67) and an oxygen aerator (68). A branch pipe (62) is fixedly installed at the pipe body of the air pipe body (61). A sliding cylinder (63) is slidably connected inside the branch pipe (62). An oxygen aerator (68) is provided at the pipe body of the air pipe body (61) and inside the branch pipe (62). A cleaning brush (67) is slidably connected at the pipe body of the air pipe body (61) and near the oxygen aerator (68). The sliding cylinder (63) is connected to the cleaning brush (67) through a transmission member provided at its bottom; The air pipe body (61) is located below the biochemical treatment material (5). A plurality of air pipe bodies (61) are provided and are equidistantly distributed along the aerobic aeration tank (1). An oxygen supply component (8) is provided at the pipe body of the air pipe body (61); A frustum-shaped rubber block is fixedly installed at the bottom of the sliding cylinder (63). Symmetrically arranged air overflow ports are provided on the side of the sliding cylinder (63). Oxygen flows inside the air pipe body (61). Oxygen bubbles released by the oxygen aerator (68) adhere to the bottom of the sliding cylinder (63). The branch pipe (62) is perpendicular to the horizontal plane. Initially, the air overflow ports of the sliding cylinder (63) extend out from the top of the branch pipe (62); A plurality of oxygen aerators (68) are provided and are linearly and equidistantly distributed along the air pipe body (61). The oxygen aerators (68) are evenly distributed below the biochemical treatment material (5). The biochemical treatment material (5) includes a bottom padding and a top microbial layer. Pipes are fixedly installed on both 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 pipes; The transmission member includes an anti-disengagement positioning block (64), a linking bottom ring (65) and a linkage rod (66). The linking bottom ring (65) is fixedly installed at the bottom of the sliding cylinder (63). The two ends of the linkage rod (66) are respectively hinged to the linking bottom ring (65) and the cleaning brush (67). The anti-disengagement positioning block (64) is fixedly installed at the top of the branch pipe (62). The anti-disengagement positioning block (64) is located on the moving path of the linking bottom ring (65); Inside the branch pipe (62), a closing component (7) is provided. The closing component (7) includes a discharge port (71), a floc blocking arc plate (73), and an attracting ring (74). At the bottom end of the branch pipe (62) and at the extension line of the cleaning brush (67), the discharge port (71) is opened. The opening of the discharge port (71) is larger than the cross-sectional area of the floc blocking arc plate (73). The floc blocking arc plate (73) is slidably connected to the inner wall of the branch pipe (62) up and down. At the bottom of the connecting bottom ring (65), an attracting ring (74) with a magnet embedded inside is fixedly installed. The attracting ring (74) is located directly above the floc blocking arc plate (73). A vertically oriented limiting chute (72) is provided inside the branch pipe (62). When the floc blocking arc plate (73) moves to the highest position of the limiting chute (72), there is a spacing between the attracting ring (74) and the floc blocking arc plate (73).

2. The high-efficiency biochemical sewage treatment equipment according to claim 1, characterized in that: The oxygen supply component (8) includes a docking push plate (81), an extension plate (82), adjusting 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). On the side of the docking push plate (81) away from the branch pipe (62), the extension plate (82) is fixedly installed. On the side part of the extension plate (82), the adjusting teeth (83) are fixedly installed. Inside the aeration pipe body (61), the one-way control valve (85) is rotatably connected. On the top of the one-way control valve (85), the gear (84) is fixedly installed. The adjusting teeth (83) are meshed with the gear (84).

3. The sewage high-efficiency biochemical treatment equipment according to claim 2, characterized in that: The one-way control valve (85) is located near the oxygen aerator (68). There is a spacing between the gear (84) and the branch pipe (62). The extension plate (82) is misaligned with the branch pipe (62). On the top of the aeration pipe body (61), a fixed support plate (86) is fixedly installed. The extension plate (82) is Z-shaped. Between the fixed support plate (86) and the extension plate (82), a guiding telescopic rod (87) with a spring installed inside is fixedly connected.

4. An efficient biochemical sewage treatment device according to claim 3, characterized in that: Inside the aerobic aeration tank (1), a vertical plate is fixedly installed. The vertical plate divides the aerobic aeration tank (1) into an inlet water tank (3) and a biochemical treatment tank (4). The sewage in the inlet water tank (3) flows from below the vertical plate into the biochemical treatment tank (4). Inside the aerobic aeration tank (1) and below the vertical plate, a guide plate is fixedly installed. The top height of the guide plate is higher than the top height of the sliding cylinder (63).

5. A method for efficient sewage biochemical treatment, applied to the sewage efficient biochemical treatment equipment described in claim 4 above, and the steps are as follows: S1. When the oxygen aerator (68) operates normally to generate bubbles, the bubbles adhere to the rubber at the bottom of the sliding cylinder (63). Under the buoyancy of the bubbles, the sliding cylinder (63) floats up, and the overflow holes emit the bubbles that do not act on the bottom of the sliding cylinder (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 sliding cylinder (63). The sliding cylinder (63) moves downward under the action of gravity, so that the cleaning brush (67) cleans at the aeration port of the oxygen aerator (68) to remove the flocs generated by microorganisms at the aeration holes, avoiding the reduction of the aeration volume and resulting in a poor efficiency of the microorganism in treating sewage. S3. When the oxygen aerator (68) is aerating normally, the discharge port (71) is closed by the floc blocking arc plate (73) to prevent the flocs in the water from entering the branch pipe (62). When the aeration holes of the oxygen aerator (68) are blocked, the sliding cylinder (63) moves downward under the action of gravity. The attracting ring (74) at the bottom of the connecting bottom ring (65) attracts the floc blocking arc plate (73) through the magnet inside it, so that the discharge port (71) is opened, cooperating with the cleaning brush (67) to slide and extend out from the branch pipe (62) to push out the flocs inside the branch pipe (62). S4. After one oxygen aerator (68) is blocked, the cleaning brush (67) is used to clean the aeration holes of the oxygen aerator (68). 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) increases, and the oxygen content of the aeration at the adjacent oxygen aerator (68) is increased emergently to make up for the missing oxygen caused by the blockage and meet the consumption of microorganisms.

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