Activated sludge sewage treatment device

Abstract

The invention belongs to the field of sewage treatment, particularly relates to an activated sludge sewage treatment device, and provides the following scheme aiming at the problems of poor treatment effect caused by inconvenience in uniformly filling air into wastewater and activated sludge and inconvenience in mixing the wastewater and the activated sludge in the prior art: the activated sludge sewage treatment device comprises a bottom plate; the aeration tank and the sedimentation tank are fixedly mounted at the top of the bottom plate; the side plate is fixedly mounted on one side of the aeration tank; the lifting seat is slidably mounted on one side of the side plate; the hollow plate is slidably mounted at the bottom of the lifting seat; the lifting mechanism is arranged on the side plate and used for lifting the lifting seat; the up-and-down reciprocating mechanism is arranged on the lifting seat and is used for carrying out up-and-down reciprocating motion on the hollow plate; one end of each air supply sleeve is fixedly communicated with the hollow plate, the other end of each air supply sleeve is closed, and a plurality of blowing holes are formed in the outer sides of the air supply sleeves, so that sewage, gas and activated sludge can be in full contact, and the treatment effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to an activated sludge sewage treatment device. Background Art

[0002] During the construction of water conservancy projects, sewage needs to be treated. The commonly used method is the activated sludge method. The principle is: wastewater and activated sludge are mixed in the aeration tank, and air is added through the aeration equipment to make microorganisms grow and multiply and decompose organic matter. Then, the mixed liquid flows into the secondary sedimentation tank for sedimentation, and the sedimentation water is discharged. Part of the sludge flows back to the aeration tank to be mixed with new sewage again, and the remaining sludge is discharged from the sedimentation tank;

[0003] The patent document with the publication (announcement) number: CN220182944U discloses a water conservancy project activated sludge sewage treatment device, which relates to the technical field of sewage treatment. It includes a base, a filter tank fixedly arranged on the top of the base, an aeration tank and a sedimentation tank, a filter mechanism is arranged inside the filter tank, a reaction mechanism is arranged inside the aeration tank, a circulation mechanism is arranged between the aeration tank and the sedimentation tank, the filter mechanism includes a fixed frame fixedly arranged inside the filter tank, a slot arranged on the inner wall of the fixed frame, the reaction mechanism includes a baffle inside the aeration tank, a first rotating rod and a second rotating rod movably arranged inside the baffle, and the circulation mechanism includes a circulation pipe fixedly arranged between the aeration tank and the sedimentation tank, and a circulation pump arranged on the circulation pipe.

[0004] In the prior art, it is not convenient to evenly fill air into wastewater and activated sludge, and wastewater and activated sludge are not convenient to mix, resulting in poor treatment effect. Therefore, we propose an activated sludge sewage treatment device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art that it is inconvenient to uniformly fill air into wastewater and activated sludge, and it is inconvenient to mix wastewater and activated sludge, resulting in poor treatment effect, and to propose an activated sludge sewage treatment device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An activated sludge sewage treatment device, comprising:

[0008] Base plate;

[0009] Aeration tank and sedimentation tank, fixedly installed on the top of the base plate;

[0010] Side plate, fixedly installed on one side of the aeration tank;

[0011] A lifting seat is slidably mounted on one side of the side panel;

[0012] A hollow plate is slidably mounted on the bottom of the lifting seat;

[0013] A lifting mechanism is provided on the side plate and is used to lift the lifting seat;

[0014] The up-and-down reciprocating mechanism is arranged on the lifting seat and is used to reciprocate the hollow plate up and down;

[0015] A plurality of air supply sleeves, one end of which is fixedly connected to the hollow plate and the other end is closed, and a plurality of blowing holes are provided on the outer sides of the plurality of air supply sleeves;

[0016] The return pipe is fixedly installed on the aeration tank and the sedimentation tank. The aeration tank and the sedimentation tank are connected through the return pipe, and a valve is provided on the return pipe;

[0017] A pumping mechanism is provided on the sedimentation tank, and is used to pump the aerated sewage in the aeration tank to the sedimentation tank for sedimentation. The pumping mechanism includes a first delivery pump fixedly installed on one side of the sedimentation tank, the water outlet of the first delivery pump is connected to the inside of the sedimentation tank, the water inlet of the first delivery pump is fixedly connected to a first pumping pipe, and the bottom end of the first pumping pipe is located in the aeration tank. A second delivery pump is fixedly installed on one side of the sedimentation tank, the water inlet of the second delivery pump is fixedly connected to a second pumping pipe, the second pumping pipe is located in the sedimentation tank, and the water outlet of the second delivery pump is fixedly connected to a transmission pipe. A sludge pump is fixedly installed on the bottom of one side of the sedimentation tank, and the sludge pump is used to discharge the refluxed residual sludge from the sedimentation tank;

[0018] A filtering mechanism is arranged at one side of the aeration tank and is used for filtering large impurities in sewage. The filtering mechanism comprises a mounting seat fixedly mounted on one side of the aeration tank, a supporting seat fixedly mounted on the top of the mounting seat, a filtering box fixedly mounted on the top of the supporting seat, a filtering plate movably mounted in the filtering box, and supporting plates fixedly mounted on both sides of the inner wall of the filtering box, the bottom of the filtering plate contacts the top of the supporting plate, two U-shaped plates are fixedly mounted on the top of the filtering plate, the top of the U-shaped plate and the top of the filtering box are on the same horizontal axis, a top cover is slidably mounted on the top of the filtering box, an observation window is arranged on the top cover, fixing bolts are threadedly mounted on the top cover, a threaded groove is provided on the top of the filtering box, the fixing bolts are adapted to the threaded groove, a water inlet pipe and a water outlet pipe are fixedly connected on both sides of the filtering box, and the water outlet pipe is fixedly connected to the aeration tank;

[0019] The mobile stirring mechanism is arranged in the aeration tank and is used to stir and mix the activated sludge and sewage;

[0020] The air supply mechanism is arranged on the lifting seat and is used for supplying air into the hollow plate. The air supply mechanism comprises an air supply machine fixedly installed on the top of the lifting seat. The air outlet of the air supply machine is fixedly connected with a hose, and one end of the hose is fixedly connected with the hollow plate.

[0021] The movable stirring mechanism comprises a movable plate, which is slidably mounted on the top of the bottom plate, a horizontal plate located above the aeration tank is fixedly mounted on one side of the movable plate, a plurality of stirring plates are rotatably mounted on the bottom of the horizontal plate, the stirring plates are located between two corresponding air supply sleeves, and the plurality of stirring plates are all located in the aeration tank, a plurality of rotating holes are opened on the horizontal plate, a plurality of rotating blocks are rotatably mounted in the plurality of rotating holes, the bottoms of the plurality of rotating blocks are respectively fixedly connected to the tops of the plurality of stirring plates, a transmission sprocket is fixedly mounted on the tops of the plurality of rotating blocks, the plurality of transmission sprockets are meshed with the same first chain, a plurality of mounting blocks are fixedly mounted on the other side of the movable plate, a plurality of mounting blocks are opened on the plurality of rotating holes, the same transmission rod is rotatably mounted in the plurality of rotating holes, and a gear is fixedly mounted on the bottom end of the transmission rod Wheel, a rack is fixedly installed on the top of the base plate, the rack is meshed with the gear, a rectangular groove is opened on the top of the base plate, the movable plate is slidably installed in the rectangular groove, a guide rod is fixedly installed in the rectangular groove, the movable plate is slidably connected to the guide rod, a small sprocket is fixedly installed on the top of the transmission rod, a large sprocket is fixedly sleeved on the outer side of a rotating block of the multiple rotating blocks, the small sprocket and the large sprocket are meshed with the same second chain, a first motor is fixedly installed on one side of the sedimentation tank, a first circular plate is fixedly installed on the output shaft of the first motor, the output shaft of the first motor is concentric with the first circular plate, a first cylindrical block is eccentrically rotatably installed on one end of the first circular plate, a first connecting rod is fixedly installed on the first cylindrical block, a first connecting block is rotatably installed on one end of the first connecting rod, and the first connecting block is fixedly connected to the movable plate.

[0022] The lifting mechanism includes a sliding groove arranged on one side of the side plate, a sliding seat is slidably installed in the sliding groove, one side of the sliding seat is fixedly connected to the lifting seat, limiting grooves are provided on the inner walls of both sides of the sliding groove, limiting blocks are fixedly installed on both sides of the sliding seat, the outer side of the limiting block is slidably connected to the inner wall of the limiting groove, a screw rod is rotatably installed in the sliding groove, the screw rod is threadedly connected to the sliding seat, a third motor is fixedly installed on the top of the side plate, and the output shaft of the third motor is fixedly connected to the top of the screw rod.

[0023] The up and down reciprocating mechanism includes a second motor fixedly installed on one side of the lifting seat, a second circular plate fixedly installed on the output shaft of the second motor, the output shaft of the second motor is concentric with the second circular plate, a second cylindrical block is eccentrically rotatably installed on one end of the second circular plate, a second connecting rod is fixedly installed on one end of the second cylindrical block, a second connecting block is rotatably installed on one end of the second connecting rod, the second connecting block is fixedly installed on the hollow plate, two cylindrical grooves are provided at the bottom end of the lifting seat, stabilizing bars are slidably installed in the two cylindrical grooves, and the bottom ends of the two stabilizing bars are fixedly connected to the top of the hollow plate.

[0024] In the present invention, the beneficial effects of the activated sludge sewage treatment device are:

[0025] Sewage enters the filter box from the water inlet pipe, and is filtered by the filter plate. The filtered sewage enters the aeration tank from the water outlet pipe, and contacts with the activated sludge in the aeration tank. The moving plate drives the horizontal plate to move back and forth horizontally, and the horizontal plate drives multiple stirring plates to move back and forth horizontally. The multiple stirring plates stir and mix the sewage and the activated sludge.

[0026] The moving plate drives multiple mounting blocks to move horizontally back and forth, and the mounting block drives the transmission rod to move, thereby causing the gear to move horizontally back and forth. Because the gear is meshed with the rack, the gear rotates while moving, thereby causing the transmission rod to rotate, and the transmission rod drives the small sprocket to rotate, and the small sprocket drives the large sprocket to rotate slowly through the second chain, and the large sprocket drives the rotating block to rotate, and the rotating block drives the transmission sprocket to rotate. Through the transmission of the first chain, multiple transmission sprockets drive multiple rotating blocks to rotate, thereby driving multiple stirring plates to rotate slowly, so that the stirring plates rotate while reciprocating, thereby improving the mixing effect of sewage and activated sludge;

[0027] The air delivery machine delivers air into the hollow plate through a hose, and then the air enters multiple air delivery sleeves and is finally blown out from multiple blowing holes. The third motor drives the screw to rotate, so that the sliding seat drives the lifting seat to move downward, and then the multiple air delivery sleeves enter the aeration tank and contact the sewage, so that the gas discharged from the blowing holes is mixed with the sewage to perform aeration;

[0028] The second motor drives the second circular plate to rotate, the second circular plate drives the second cylindrical block to move eccentrically, the second cylindrical block drives the second connecting rod to move, the second connecting rod drives the second connecting block to move vertically back and forth, the second connecting block drives the hollow plate to move vertically back and forth, and then drives multiple air delivery sleeves, so that the gas and sewage contact more evenly; after the treatment is completed, the third motor reverses to move the lifting seat upward, thereby raising the multiple air delivery sleeves, so that they do not need to be immersed in sewage all the time;

[0029] The present invention can make sewage, gas and activated sludge fully contact with each other, thus improving the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of an activated sludge sewage treatment device proposed by the present invention;

[0031] Figure 2 A schematic diagram of the three-dimensional structure of an activated sludge sewage treatment device proposed by the present invention from one perspective;

[0032] Figure 3 A schematic diagram of the three-dimensional structure of an activated sludge sewage treatment device proposed by the present invention from another perspective;

[0033] Figure 4A schematic diagram of the three-dimensional structure of an activated sludge sewage treatment device without an aeration tank proposed by the present invention;

[0034] Figure 5 An activated sludge sewage treatment device proposed by the present invention Figure 2 A schematic diagram of the enlarged structure of part A;

[0035] Figure 6 An activated sludge sewage treatment device proposed by the present invention Figure 1 A schematic diagram of the enlarged structure of part B;

[0036] Figure 7 An activated sludge sewage treatment device proposed by the present invention Figure 1 A schematic diagram of the enlarged structure of the middle C part;

[0037] Figure 8 An activated sludge sewage treatment device proposed by the present invention Figure 1 A schematic diagram of the enlarged structure of the D part;

[0038] Fig. 9 An activated sludge sewage treatment device proposed by the present invention Figure 3 A schematic diagram of the enlarged structure of part E in the middle;

[0039] Fig.10 An activated sludge sewage treatment device proposed by the present invention Figure 4 A schematic diagram of the enlarged structure of the F part;

[0040] Fig.11 This is a schematic diagram of the structure of a filtering mechanism of an activated sludge sewage treatment device proposed by the present invention;

[0041] Fig.12 This is a structural schematic diagram of the connecting part of the horizontal plate, rotating block and stirring plate of an activated sludge sewage treatment device proposed by the present invention;

[0042] Fig.13 This is a structural schematic diagram of the connection part of the filter box support plate of an activated sludge sewage treatment device proposed by the present invention;

[0043] Fig.14 This is a structural schematic diagram of a lifting mechanism of an activated sludge sewage treatment device proposed by the present invention;

[0044] Fig.15 It is a structural schematic diagram of a second circular plate, a second cylindrical block, a second connecting rod box and a second connecting block of an activated sludge sewage treatment device proposed by the present invention.

[0045] In the figure: 1, bottom plate; 2, aeration tank; 3, sedimentation tank; 4, mounting seat; 5, support seat; 6, filter box; 7, filter plate; 8, U-shaped plate; 9, top cover; 10, fixing bolt; 11, threaded groove; 12, observation window; 13, water inlet pipe; 14, water outlet pipe; 15, support plate; 16, side plate; 17, sliding groove; 18, sliding seat; 19, lifting seat; 20, cylindrical groove; 21, stabilizing rod; 22, hollow plate; 23, air supply sleeve; 24, air blowing hole; 25, air supply machine; 26, hose; 27, third motor; 28, screw; 29, limit groove; 30, limit block;

[0046] 31. second motor; 32. second circular plate; 33. second cylindrical block; 34. second connecting rod;

[0047] 35. second connecting block; 36. return pipe; 37. first delivery pump; 38. first extraction pipe;

[0048] 39. Second delivery pump; 40. Second suction pipe; 41. Delivery pipe; 42. Guide rod; 43. Moving plate; 44. Horizontal plate; 45. Rotating block; 46. Transmission sprocket; 47. First chain; 48. Mounting block; 49. Rotating hole; 50. Transmission rod; 51. Small sprocket; 52. Large sprocket; 53. Second chain; 54. Stirring plate; 55. Rotating hole; 56. Gear; 57. Rack; 58. First connecting block; 59. First connecting rod; 60. First motor; 61. First circular plate; 62. First cylindrical block; 63. Sludge pump. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0050] Embodiment 1

[0051] Reference Figure 1-Figure 15 , an activated sludge sewage treatment device, comprising:

[0052] Bottom plate 1;

[0053] The aeration tank 2 and the sedimentation tank 3 are fixedly installed on the top of the bottom plate 1;

[0054] A side plate 16 is fixedly mounted on one side of the aeration tank 2;

[0055] A lifting seat 19 is slidably mounted on one side of the side plate 16;

[0056] The hollow plate 22 is slidably mounted on the bottom of the lifting seat 19;

[0057] A lifting mechanism, provided on the side plate 16, for lifting and lowering the lifting seat 19;

[0058] The up-and-down reciprocating mechanism is provided on the lifting seat 19 and is used to reciprocate the hollow plate 22 up and down;

[0059] A plurality of air supply sleeves 23, one end of which is fixedly connected to the hollow plate 22 and the other end is closed, and a plurality of air blowing holes 24 are provided on the outer sides of the plurality of air supply sleeves 23;

[0060] The return pipe 36 is fixedly installed on the aeration tank 2 and the sedimentation tank 3. The aeration tank 2 and the sedimentation tank 3 are connected through the return pipe 36. A valve is provided on the return pipe 36.

[0061] The pumping mechanism is provided on the sedimentation tank 3 and is used to pump the sewage after aeration treatment in the aeration tank 2 to the sedimentation tank 3 for sedimentation;

[0062] The filtering mechanism is arranged on one side of the aeration tank 2 and is used to filter large impurities in the sewage;

[0063] A mobile stirring mechanism is provided in the aeration tank 2 and is used to stir and mix the activated sludge and sewage;

[0064] The air supply mechanism is disposed on the lifting seat 19 and is used for supplying air into the hollow plate 22 .

[0065] In this embodiment, the mobile stirring mechanism includes a mobile plate 43, which is slidably installed on the top of the bottom plate 1, and a horizontal plate 44 located above the aeration tank 2 is fixedly installed on one side of the mobile plate 43. A plurality of stirring plates 54 are rotatably installed at the bottom of the horizontal plate 44, and the stirring plates 54 are located between the corresponding two air supply sleeves 23. The plurality of stirring plates 54 are all located in the aeration tank 2, and a plurality of rotating holes 55 are opened on the horizontal plate 44. A plurality of rotating blocks 45 are rotatably installed in the plurality of rotating holes 55. The bottoms of the plurality of rotating blocks 45 are respectively fixedly connected to the tops of the plurality of stirring plates 54, and a transmission sprocket 46 is fixedly installed on the tops of the plurality of rotating blocks 45. The same first chain 47 is meshed on the plurality of transmission sprockets 46. A plurality of mounting blocks 48 are fixedly installed on the other side of the mobile plate 43, and a plurality of mounting blocks 48 are opened on the plurality of mounting blocks 48. The same transmission rod 50 is rotatably installed in the plurality of rotating holes 49, and a gear is fixedly installed at the bottom end of the transmission rod 50. 56, a rack 57 is fixedly installed on the top of the bottom plate 1, and the rack 57 is meshed with the gear 56. A rectangular groove is opened on the top of the bottom plate 1, and the movable plate 43 is slidably installed in the rectangular groove. A guide rod 42 is fixedly installed in the rectangular groove, and the movable plate 43 is slidably connected with the guide rod 42. A small sprocket 51 is fixedly installed on the top of the transmission rod 50, and a large sprocket 52 is fixedly sleeved on the outer side of a rotating block 45 among the multiple rotating blocks 45. The small sprocket 51 and the large sprocket 52 are meshed with the same second chain 53. A first motor 60 is fixedly installed on one side of the sedimentation tank 3, and a first circular plate 61 is fixedly installed on the output shaft of the first motor 60. The output shaft of the first motor 60 is concentric with the first circular plate 61. A first cylindrical block 62 is eccentrically rotatably installed at one end of the first circular plate 61, and a first connecting rod 59 is fixedly installed on the first cylindrical block 62. A first connecting rod 59 is rotatably installed at one end of the first connecting rod 59. The first connecting block 58 is fixedly connected to the movable plate 43;

[0066] Specifically, the first motor 60 drives the first circular plate 61 to rotate, the first circular plate 61 drives the first cylindrical block 62 to eccentrically move, the first cylindrical block 62 drives the first connecting rod 59 to move, the first connecting rod 59 drives the first connecting block 58 to move horizontally back and forth, the first connecting block 58 drives the moving plate 43 to move horizontally back and forth, the moving plate 43 drives the horizontal plate 44 to move horizontally back and forth, the horizontal plate 44 drives multiple stirring plates 54 to move horizontally back and forth, the multiple stirring plates 54 stir and mix the sewage and the activated sludge, and at the same time, the moving plate 43 drives multiple mounting blocks 48 to move reciprocatingly horizontally, the mounting blocks 48 drive the transmission rod 50 to move, so that the gear 5 6 reciprocates horizontally, and because the gear 56 is meshed with the rack 57, the gear 56 rotates while moving, thereby causing the transmission rod 50 to rotate, and the transmission rod 50 drives the small sprocket 51 to rotate, and the small sprocket 51 drives the large sprocket 52 to rotate slowly through the second chain 53, and the large sprocket 52 drives the rotating block 45 to rotate, and the rotating block 45 drives the transmission sprocket 46 to rotate, and through the transmission of the first chain 47, multiple transmission sprockets 46 drive multiple rotating blocks 45 to rotate, and then drive multiple stirring plates 54 to rotate slowly, so that the stirring plates 54 rotate while reciprocating, thereby improving the mixing effect of sewage and activated sludge.

[0067] In this embodiment, the lifting mechanism includes a sliding groove 17 provided on one side of the side plate 16, a sliding seat 18 is slidably installed in the sliding groove 17, one side of the sliding seat 18 is fixedly connected to the lifting seat 19, limiting grooves 29 are provided on the inner walls of both sides of the sliding groove 17, and limiting blocks 30 are fixedly installed on both sides of the sliding seat 18, and the outer side of the limiting block 30 is slidably connected to the inner wall of the limiting groove 29, a screw 28 is rotatably installed in the sliding groove 17, and the screw 28 is threadedly connected to the sliding seat 18, and a third motor 27 is fixedly installed on the top of the side plate 16, and the output shaft of the third motor 27 is fixedly connected to the top of the screw 28;

[0068] Specifically, the third motor 27 drives the screw rod 28 to rotate, so that the sliding seat 18 drives the lifting seat 19 to move downward, thereby allowing the multiple air delivery sleeves 23 to enter the aeration tank 2 and contact the sewage.

[0069] In this embodiment, the up and down reciprocating mechanism includes a second motor 31 fixedly installed on one side of the lifting seat 19, a second circular plate 32 is fixedly installed on the output shaft of the second motor 31, the output shaft of the second motor 31 is concentric with the second circular plate 32, a second cylindrical block 33 is eccentrically rotatably installed on one end of the second circular plate 32, a second connecting rod 34 is fixedly installed on one end of the second cylindrical block 33, a second connecting block 35 is rotatably installed on one end of the second connecting rod 34, and the second connecting block 35 is fixedly installed on the hollow plate 22. Two cylindrical grooves 20 are provided at the bottom end of the lifting seat 19, and stabilizing bars 21 are slidably installed in the two cylindrical grooves 20. The bottom ends of the two stabilizing bars 21 are fixedly connected to the top of the hollow plate 22, and the stabilizing bars 21 slide vertically in the cylindrical block 20, so that the hollow plate 22 can move vertically stably.

[0070] In this embodiment, the filtering mechanism includes a mounting seat 4 fixedly installed on one side of the aeration tank 2, a support seat 5 is fixedly installed on the top of the mounting seat 4, a filter box 6 is fixedly installed on the top of the support seat 5, a filter plate 7 is movably installed in the filter box 6, and support plates 15 are fixedly installed on the inner walls of both sides of the filter box 6, the bottom of the filter plate 7 is in contact with the top of the support plate 15, two U-shaped plates 8 are fixedly installed on the top of the filter plate 7, and the top of the U-shaped plate 8 is on the same horizontal axis as the top of the filter box 6, a top cover 9 is slidably installed on the top of the filter box 6, an observation window 12 is provided on the top cover 9, and a fixing bolt 10 is threadedly installed on the top cover 9, a threaded groove 11 is opened on the top of the filter box 6, and the fixing bolt 10 is adapted to the threaded groove 11, and a water inlet pipe 13 and a water outlet pipe 14 are fixedly connected to the two sides of the filter box 6, respectively, and the water outlet pipe 14 is fixedly connected to the aeration tank 2;

[0071] Specifically, through the setting of the observation window 12, the impurities on the filter plate 7 inside the filter box 6 can be observed. When cleaning is needed, loosen the fixing bolt 10 to separate the fixing bolt 10 from the threaded groove 11, slide the top cover 9 open, and the top cover 9 no longer restricts the tops of the two U-shaped plates 8. The impurities on the filter plate 7 can be cleaned. At the same time, the filter plate 7 can be easily pulled out through the two U-shaped plates 8 to clean the filter plate 7.

[0072] In this embodiment, the pumping mechanism includes a first delivery pump 37 fixedly installed on one side of the sedimentation tank 3, the water outlet of the first delivery pump 37 is connected to the inside of the sedimentation tank 3, the water inlet of the first delivery pump 37 is fixedly connected to a first pumping pipe 38, and the bottom end of the first pumping pipe 38 is located in the aeration tank 2, a second delivery pump 39 is fixedly installed on one side of the sedimentation tank 3, the water inlet of the second delivery pump 39 is fixedly connected to a second pumping pipe 40, the second pumping pipe 40 is located in the sedimentation tank 3, the water outlet of the second delivery pump 39 is fixedly connected to a conveying pipe 41, and a sludge pump 63 is fixedly installed at the bottom of one side of the sedimentation tank 3, and the sludge pump 63 is used to discharge the remaining sludge in the reflux from the sedimentation tank 3.

[0073] In this embodiment, the air supply mechanism includes an air supply machine 25 fixedly installed on the top of the lifting seat 19 , and the air outlet of the air supply machine 25 is fixedly connected to a hose 26 , and one end of the hose 26 is fixedly connected to the hollow plate 22 .

[0074] In this embodiment, when in use, sewage enters the filter box 6 from the water inlet pipe 13, and is filtered by the filter plate 7. The filtered sewage enters the aeration tank 2 from the water outlet pipe 14, and contacts with the activated sludge in the aeration tank 2. The first circular plate 61 is driven to rotate by the first motor 60, and the first circular plate 61 drives the first cylindrical block 62 to move eccentrically, and the first cylindrical block 62 drives the first connecting rod 59 to move, and the first connecting rod 59 drives the first connecting block 58 to move horizontally back and forth, and the first connecting block 58 drives the moving plate 43 to move horizontally back and forth, and the moving plate 43 drives the horizontal plate 44 to move horizontally back and forth, and the horizontal plate 44 drives multiple stirring plates 54 to move horizontally back and forth, and the multiple stirring plates 54 stir and mix the sewage and the activated sludge, and at the same time The movable plate 43 drives the plurality of mounting blocks 48 to move reciprocatingly horizontally, and the mounting block 48 drives the transmission rod 50 to move, thereby causing the gear 56 to move reciprocatingly horizontally. Because the gear 56 is meshed with the rack 57, the gear 56 rotates while moving, thereby causing the transmission rod 50 to rotate, and the transmission rod 50 drives the small sprocket 51 to rotate, and the small sprocket 51 drives the large sprocket 52 to rotate slowly through the second chain 53, and the large sprocket 52 drives the rotating block 45 to rotate, and the rotating block 45 drives the transmission sprocket 46 to rotate. Through the transmission of the first chain 47, the plurality of transmission sprockets 46 drive the plurality of rotating blocks 45 to rotate, thereby driving the plurality of stirring plates 54 to rotate slowly, so that the stirring plates 54 rotate while reciprocating. The air delivery machine 25 delivers air into the hollow plate 22 through the hose 26, and then the gas enters the multiple air delivery sleeves 23, and finally blows out from the multiple blowing holes 24. The third motor 27 drives the screw 28 to rotate, so that the sliding seat 18 drives the lifting seat 19 to move downward, and then the multiple air delivery sleeves 23 enter the aeration tank 2 and contact the sewage, so that the gas discharged from the blowing holes 24 is mixed with the sewage for aeration. The second motor 31 drives the second circular plate 32 to rotate, the second circular plate 32 drives the second cylindrical block 33 to move eccentrically, the second cylindrical block 33 drives the second connecting rod 34 to move, the second connecting rod 34 drives the second connecting block 35 to move vertically back and forth, and the second connecting block 35 drives The hollow plate 22 moves vertically back and forth, thereby driving multiple air delivery sleeves 23, so that the gas and sewage contact more evenly. After the treatment is completed, the third motor 27 reverses, so that the lifting seat 19 moves upward, and then the multiple air delivery sleeves 23 are lifted up, so that they do not need to be immersed in sewage all the time. Then the first delivery pump 37 is started, and the mixed liquid of sewage and activated sludge in the aeration tank 2 is pumped into the sedimentation tank 3 through the first suction pipe 38 for precipitation. After the precipitation is completed, the second delivery pump 39 is started, and the supernatant is pumped away through the second suction pipe 40 and transported away by the transmission pipe 41. Then the valve is opened, and a part of the activated sludge precipitated in the sedimentation tank 3 flows back to the aeration tank 2 from the reflux pipe 36, and the remaining activated sludge is pumped away by the sludge pump 63.

[0075] Embodiment 2

[0076] The difference between this embodiment and the first embodiment is that an electric push rod is fixedly installed on the top of the sedimentation tank 3, and a connecting plate is fixedly installed on the output shaft of the electric push rod. The second delivery pump 39 is fixed on the top of the connecting plate. The height of the second delivery pump 39 is adjusted by the electric push rod, and then the depth of the second suction pipe 40 inserted into the sedimentation tank 3 is adjusted to meet different extraction requirements.

[0077] The rest is the same as that of the first embodiment.

[0078] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An activated sludge sewage treatment device, characterized in that: include: Bottom plate (1); The aeration tank (2) and the sedimentation tank (3) are fixedly installed on the top of the base plate (1); A side plate (16) is fixedly mounted on one side of the aeration tank (2); A lifting seat (19) is slidably mounted on one side of the side plate (16); A hollow plate (22) is slidably mounted on the bottom of the lifting seat (19); A lifting mechanism is provided on the side plate (16) and is used for lifting and lowering the lifting seat (19); An up-and-down reciprocating mechanism is disposed on the lifting seat (19) and is used to make the hollow plate (22) reciprocate up and down; A plurality of air supply sleeves (23), one end of which is fixedly connected to the hollow plate (22) and the other end of which is closed, and a plurality of air blowing holes (24) are provided on the outer sides of the plurality of air supply sleeves (23); A return pipe (36) is fixedly installed on the aeration tank (2) and the sedimentation tank (3); the aeration tank (2) and the sedimentation tank (3) are connected via the return pipe (36); and a valve is provided on the return pipe (36); A pumping mechanism is provided on the sedimentation tank (3) and is used to pump the sewage after aeration treatment in the aeration tank (2) into the sedimentation tank (3) for sedimentation; A filtering mechanism is provided on one side of the aeration tank (2) and is used to filter large impurities in the sewage; A mobile stirring mechanism is arranged in the aeration tank (2) and is used to stir and mix the activated sludge and sewage; The air supply mechanism is arranged on the lifting seat (19) and is used for supplying air into the hollow plate (22).

2. An activated sludge sewage treatment device according to claim 1, characterized in that: The movable stirring mechanism comprises a movable plate (43), the movable plate (43) being slidably mounted on the top of the bottom plate (1), a horizontal plate 4 (4) located above the aeration tank (2) being fixedly mounted on one side of the movable plate (43), a plurality of stirring plates (54) being rotatably mounted on the bottom of the horizontal plate (44), the stirring plates (54) being located between two corresponding air supply sleeves (23), and the plurality of stirring plates (54) being located in the aeration tank (2).

3. An activated sludge sewage treatment device according to claim 2, characterized in that: The transverse plate (44) is provided with a plurality of rotating holes (55), and a plurality of rotating blocks (45) are rotatably mounted in the plurality of rotating holes (55). The bottoms of the plurality of rotating blocks (45) are respectively fixedly connected to the tops of the plurality of stirring plates (54). A transmission sprocket (46) is fixedly mounted on the tops of the plurality of rotating blocks (45), and the plurality of transmission sprockets (46) are meshed with a same first chain (47). A plurality of mounting blocks (48) are fixedly mounted on the other side of the movable plate (43), and a plurality of mounting blocks (48) are provided with rotating holes (49). The plurality of rotating holes (49) are rotatably mounted in the same transmission rod (50), and a gear (56) is fixedly mounted at the bottom end of the transmission rod (50). A rack (57) is fixedly mounted on the top of the bottom plate (1), and the rack (57) is meshed with the gear (56). A rectangular groove is provided on the top of the bottom plate (1), and the movable plate (43) is slidably mounted in the rectangular groove. A guide rod (42) is fixedly installed in the groove, the movable plate (43) is slidably connected to the guide rod (42), a small sprocket (51) is fixedly installed on the top of the transmission rod (50), a large sprocket (52) is fixedly sleeved on the outer side of a rotating block (45) among the plurality of rotating blocks (45), the small sprocket (51) and the large sprocket (52) are meshed with the same second chain (53), a first motor (60) is fixedly installed on one side of the sedimentation tank (3), a first circular plate (61) is fixedly installed on the output shaft of the first motor (60), the output shaft of the first motor (60) is concentric with the first circular plate (61), one end of the first circular plate (61) is eccentrically rotatably installed with a first columnar block (62), a first connecting rod (59) is fixedly installed on the first columnar block (62), one end of the first connecting rod (59) is rotatably installed with a first connecting block (58), and the first connecting block (58) is fixedly connected to the movable plate (43).

4. The activated sludge sewage treatment device according to claim 3, characterized in that: The lifting mechanism comprises a sliding groove (17) arranged on one side of the side plate (16), a sliding seat (18) is slidably installed in the sliding groove (17), one side of the sliding seat (18) is fixedly connected to the lifting seat (19), limiting grooves (29) are provided on the inner walls of both sides of the sliding groove (17), limiting blocks (30) are fixedly installed on both sides of the sliding seat (18), the outer side of the limiting block (30) is slidably connected to the inner wall of the limiting groove (29), a screw rod (28) is rotatably installed in the sliding groove (17), the screw rod (28) is threadedly connected to the sliding seat (18), a third motor (27) is fixedly installed on the top of the side plate (16), and the output shaft of the third motor (27) is fixedly connected to the top of the screw rod (28).

5. The activated sludge sewage treatment device according to claim 4, characterized in that: The up-and-down reciprocating mechanism comprises a second motor (31) fixedly mounted on one side of the lifting seat (19); a second circular plate (32) is fixedly mounted on the output shaft of the second motor (31); the output shaft of the second motor (31) is concentric with the second circular plate (32); a second columnar block (33) is eccentrically rotatably mounted on one end of the second circular plate (32); a second connecting rod (34) is fixedly mounted on one end of the second columnar block (33); a second connecting rod (34) is rotatably mounted on one end of the second connecting rod (34); the second connecting block (35) is fixedly mounted on the hollow plate (22); two columnar grooves (20) are provided at the bottom end of the lifting seat (19); stabilizing rods (21) are slidably mounted in the two columnar grooves (20); the bottom ends of the two stabilizing rods (21) are fixedly connected to the top of the hollow plate (22).

6. The activated sludge sewage treatment device according to claim 5, characterized in that: The filtering mechanism comprises a mounting seat (4) fixedly mounted on one side of the aeration tank (2); a support seat (5) is fixedly mounted on the top of the mounting seat (4); a filter box (6) is fixedly mounted on the top of the support seat (5); a filter plate (7) is movably mounted in the filter box (6); support plates (15) are fixedly mounted on both sides of the inner wall of the filter box (6); the bottom of the filter plate (7) contacts the top of the support plate (15); two U-shaped plates (8) are fixedly mounted on the top of the filter plate (7); the top of the U-shaped plate (8) is The top of the filter box (6) is on the same horizontal axis as the top of the filter box (6); a top cover (9) is slidably mounted on the top of the filter box (6); an observation window (12) is provided on the top cover (9); a fixing bolt (10) is threadedly mounted on the top cover (9); a thread groove (11) is provided on the top of the filter box (6); the fixing bolt (10) is matched with the thread groove (11); a water inlet pipe (13) and a water outlet pipe (14) are fixedly connected on both sides of the filter box (6); and the water outlet pipe (14) is fixedly connected to the aeration tank (2).

7. The activated sludge sewage treatment device according to claim 6, characterized in that: The pumping mechanism comprises a first delivery pump (37) fixedly mounted on one side of the sedimentation tank (3); a water outlet of the first delivery pump (37) is connected to the interior of the sedimentation tank (3); a water inlet of the first delivery pump (37) is fixedly connected to a first pumping pipe (38); and a bottom end of the first pumping pipe (38) is located in the aeration tank (2).

8. The activated sludge sewage treatment device according to claim 7, characterized in that: A second delivery pump (39) is fixedly installed on one side of the sedimentation tank (3); a water inlet of the second delivery pump (39) is fixedly connected to a second suction pipe (40); the second suction pipe (40) is located in the sedimentation tank (3); and a water outlet of the second delivery pump (39) is fixedly connected to a transmission pipe (41).

9. The activated sludge sewage treatment device according to claim 8, characterized in that: A sludge pump (63) is fixedly installed at the bottom of one side of the sedimentation tank (3), and the sludge pump (63) is used to discharge the refluxed excess sludge out of the sedimentation tank (3).

10. The activated sludge sewage treatment device according to claim 9, characterized in that: The air supply mechanism comprises an air supply machine (25) fixedly mounted on the top of the lifting seat (19); an air outlet of the air supply machine (25) is fixedly connected to a hose (26); one end of the hose (26) is fixedly connected to the hollow plate (22).

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