Domestic sewage multi-stage treatment device

Abstract

The invention relates to the field of sewage treatment, in particular to a multi-stage treatment device for domestic sewage. According to an existing device, sludge is easily driven together when sewage circulates, so that the treatment stability of different working procedures is influenced by the sludge, the sludge is inconvenient to clean after the sewage is treated, the cleaning is easy and incomplete, and the safety of operators is easily threatened when the sludge is cleaned due to the fact that biogas can be generated by anaerobic treatment. The invention discloses a multi-stage treatment device for domestic sewage. The multi-stage treatment device comprises two support frames and the like, one sides of the two supporting frames are fixedly connected with an aerobic reaction frame, the two supporting frames are fixedly connected with an anaerobic reaction frame and an anaerobic reaction frame, one side of the anaerobic reaction frame is provided with a sealing cover, and the aerobic reaction frame is fixedly connected with an air pump. The reacted sewage is filtered and then discharged, so that the sludge in the previous treatment process is not easy to flow into the next process along with the sewage, the mutual interference is not easy to occur, and the sewage treatment stability is ensured.

Description

Technical Field

[0001] The invention relates to the field of sewage treatment, and in particular to a multi-stage domestic sewage treatment device. Background Art

[0002] Domestic sewage refers to wastewater generated in residents' daily lives. In rural areas, if domestic sewage is discharged directly without treatment, it will cause serious harm to the environment, ecology and human health. The commonly used treatment method now is to treat sewage through three main processes: anaerobic treatment, anaerobic treatment and aerobic treatment.

[0003] However, the existing device is easy to bring sludge along when sewage circulates, so that the sludge affects the treatment stability of different processes. After the sewage is treated, it is inconvenient to clean the sludge, and it is easy to clean it incompletely. In addition, since anaerobic treatment will produce methane, it is easy to threaten the safety of operators when cleaning the sludge. Summary of the invention

[0004] In order to overcome the shortcomings of the background technology, the present invention provides a multi-stage domestic sewage treatment device that is more stable, has more thorough sludge cleaning, and is safer.

[0005] The technical solution of the present invention is: a multi-stage domestic sewage treatment device, comprising two support frames, one side of the two support frames is fixedly connected to an aerobic reaction frame, one side of the aerobic reaction frame is fixedly connected to a drain pipe, the two support frames are fixedly connected to an anaerobic reaction frame and an anaerobic reaction frame, one side of the anaerobic reaction frame is provided with a sealing cover, the aerobic reaction frame is fixedly connected to an air pump, the lower part of the air pump is fixedly connected to an aeration pipe, a connecting elbow 1 is fixedly connected between the aerobic reaction frame and the anaerobic reaction frame, the anaerobic reaction frame and the A connecting elbow 2 is fixedly connected between the anaerobic reaction frames, a water inlet short pipe is fixedly connected to the inner walls of the aerobic reaction frame, the anaerobic reaction frame and the anaerobic reaction frame, a flip door is rotatably connected to one side of the anaerobic reaction frame and the anaerobic reaction frame, an adding mechanism is provided on the aerobic reaction frame, the anaerobic reaction frame and the anaerobic reaction frame, and the adding mechanism is used to add a reactant to the sewage, and a drainage mechanism is provided in the anaerobic reaction frame and the anaerobic reaction frame, and the drainage mechanism is used to discharge the treated sewage into the next process.

[0006] Furthermore, the adding mechanism includes three feeding barrels, which are respectively fixedly connected to the aerobic reaction frame, the anaerobic reaction frame and the anaerobic reaction frame; the upper portion of each feeding barrel is rotatably connected with a flip cover; the lower portion of each feeding barrel is fixedly connected with a feeding straight pipe, the feeding straight pipe is communicated with the feeding barrel; each water inlet short pipe is rotatably connected with an impeller; each water inlet short pipe is fixedly connected with a guide hopper; each feeding straight pipe is rotatably connected with a spiral plate; a transmission assembly is connected between the spiral plate and the impeller; the upper portions of the anaerobic reaction frame and the anaerobic reaction frame are fixedly connected with isolation covers.

[0007] Furthermore, the transmission assembly includes pulley one, pulley two and a transmission belt, the impeller is connected to pulley one, the spiral plate is connected to pulley two, and a transmission belt is wound between pulley one and pulley two.

[0008] Further, the drainage mechanism includes two waterproof trough plates, which are fixedly connected to the inner walls of the anaerobic reaction frame and the anaerobic reaction frame respectively, each of the waterproof trough plates is slidably connected with a movable partition, and a square hole is opened on the movable partition, the anaerobic reaction frame and the anaerobic reaction frame are fixedly connected with an electric push rod, and the telescopic rod of the electric push rod is connected to the movable partition, and the inner bottom surfaces of the anaerobic reaction frame and the anaerobic reaction frame are fixedly connected with two guide frames, and the two guide frames of each group are slidably connected with a movable baffle, the two movable baffles form a group, and the two movable baffles of each group are in contact with each other, each of the movable baffles is fixedly connected with a guide groove rod, and the guide groove rod is opened with a guide groove, and one side of each movable partition is fixedly connected with two round rods, and the round rods are located in the guide groove of the guide groove rod, and one side of each movable partition is fixedly connected with a filter press plate, and the side of the anaerobic reaction frame is fixedly connected with a control panel, and the control panel is used to control the electric push rod.

[0009] Furthermore, it also includes a mud-removing mechanism, which is arranged in the anaerobic reaction frame and the anaerobic reaction frame, and is used to assist in cleaning the sludge after the reaction. The mud-removing mechanism includes two long guide rods, and the two long guide rods are respectively fixedly connected to the bottom surfaces of the anaerobic reaction frame and the anaerobic reaction frame. The two long guide rods are slidably connected with sliding scrapers, and one side of each sliding scraper is fixedly connected with two pull rods, and each pull rod is fixedly connected with a fixed block, and each pull rod is slidably connected with a sliding ring, and each filter press plate is slidably connected with a hanging rod, a connecting rod is connected between the hanging rod and the sliding ring, and a soft cloth is fixedly connected between the hanging rod and the sliding scraper.

[0010] Furthermore, it also includes a collecting mechanism, which is arranged on the anaerobic reaction frame and is used to collect biogas. The collecting mechanism includes a gas storage tank, which is fixedly connected to one side of the anaerobic reaction frame. A piston rod is slidably connected inside the gas storage tank, and the piston rod is connected to the lower part of one of the movable partitions. An air collection pipe is fixedly connected to the upper part of the gas storage tank, and the air collection pipe passes through one side of the anaerobic reaction frame. A limiting frame is fixedly connected to the side of one of the movable partitions, and a slide plate is slidably connected to the limiting frame, and a floating plate is fixedly connected to one side of the slide plate.

[0011] The beneficial effects are: 1. By filtering the wastewater after the reaction before discharging it, the sludge from the previous treatment process is not easy to flow into the next process along with the wastewater, and mutual interference is not easy to occur, thus ensuring the stability of wastewater treatment.

[0012] 2. When the filter press plate moves downward with the movable partition, the filter press plate will drive the hanging rod to move downward together. The downward movement of the hanging rod will squeeze the connecting rod downward. Since the connecting rod, the hanging rod and the sliding ring are all rotatably connected, the downward movement of the hanging rod will drive the sliding ring to move horizontally in the direction away from the sliding scraper through the connecting rod. When the filter press plate is reset upward and the operator opens the flip door to clean the sludge, the operator can pull the pull rod to drive the sliding scraper to move horizontally. The horizontal movement of the sliding scraper and the pull rod will drive the sliding ring to move horizontally together through the fixed block, and then the sliding ring will drive the hanging rod and the soft cloth to move horizontally together through the connecting rod, so that the sludge can be cleaned more conveniently.

[0013] 3. When sewage is passed into the anaerobic reaction frame for anaerobic reaction, a certain amount of biogas will be produced. At first, the slide block blocks the square hole of the movable baffle. Then, when the movable baffle moves downward, the movable baffle will also drive the limit frame to move downward. The limit frame will move downward and drive the slide and the floating plate to move downward. After the floating plate moves downward and contacts the water surface, the floating plate will float on the water surface due to buoyancy. Then the movable baffle continues to move downward, so that the slide moves upward relative to the movable baffle, thereby opening the square hole on the movable baffle. Then the sewage flows out through the square hole again. Then, the movable baffle moves downward and drives the piston rod to move downward. The piston rod moves downward and the air in the anaerobic reaction frame is sucked into the gas storage tank through the air collecting pipe, thereby sucking in the biogas. Then, the operator first discharges the gas in the gas storage tank and then resets the movable baffle. In this way, the biogas in the anaerobic reaction frame is isolated and discharged in time, making it safer for the operator to clean the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0015] Figure 2It is a schematic diagram of the three-dimensional structure of the aerobic reaction frame and the anaerobic reaction frame of the present invention.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the drainage mechanism of the present invention.

[0017] Figure 4 It is a partial three-dimensional structural schematic diagram of the drainage mechanism of the present invention.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the adding mechanism of the present invention.

[0019] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged three-dimensional structure at point A in the middle.

[0020] Figure 7 It is a schematic diagram of the separation three-dimensional structure of the spiral plate and the feeding straight tube of the present invention.

[0021] Figure 8 It is a three-dimensional structural schematic diagram of the mud-removing mechanism of the present invention.

[0022] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged three-dimensional structure at point B in the middle.

[0023] Fig.10 It is a schematic diagram of the separation three-dimensional structure of the hanging rod and the filter press plate of the present invention.

[0024] Fig.11 It is a schematic diagram of the three-dimensional structure of the collecting mechanism of the present invention.

[0025] Fig.12 It is a schematic diagram of the separated three-dimensional structure of the collecting mechanism of the present invention.

[0026] In the accompanying drawings: 1-support frame, 21-aerobic reaction frame, 211-drain pipe, 22-anaerobic reaction frame, 23-anaerobic reaction frame, 231-sealing cover, 24-air pump, 25-aeration pipe, 26-connecting elbow pipe 1, 27-connecting elbow pipe 2, 28-water inlet short pipe, 3-flip door, 41-feeding cylinder, 42-flip cover, 43-feeding straight pipe, 44-impeller, 45-guide hopper, 46-spiral plate, 47-transmission assembly, 48-isolation cover, 51- Waterproof trough plate, 52-movable partition, 53-electric push rod, 54-guide frame, 55-movable baffle, 56-guide trough rod, 57-round rod, 58-filter press plate, 59-control panel, 61-guide long rod, 62-sliding scraper, 63-pull rod, 64-fixed block, 65-sliding ring, 66-hanging rod, 67-connecting rod, 68-soft cloth, 71-gas storage tank, 72-piston rod, 73-air collection pipe, 74-limiting frame, 75-slide plate, 76-floating plate. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] A domestic sewage multi-stage treatment device, such as Figure 1-12 As shown, it includes two support frames 1, one side of the two support frames 1 is fixedly connected to an aerobic reaction frame 21, one side of the aerobic reaction frame 21 is fixedly connected to a drain pipe 211, the two support frames 1 are fixedly connected to an anaerobic reaction frame 22 and an anaerobic reaction frame 23, one side of the anaerobic reaction frame 23 is provided with a sealing cover 231, the aerobic reaction frame 21 is fixedly connected to an air pump 24, the lower part of the air pump 24 is fixedly connected to an aeration pipe 25, a connecting elbow 26 is fixedly connected between the aerobic reaction frame 21 and the anaerobic reaction frame 22, and the anaerobic reaction frame 22 is connected to the anaerobic reaction frame 23. 3 is fixedly connected with a connecting elbow 27, the inner walls of the aerobic reaction frame 21, the anaerobic reaction frame 22 and the anaerobic reaction frame 23 are fixedly connected with a water inlet short pipe 28, one side of the anaerobic reaction frame 22 and the anaerobic reaction frame 23 are rotatably connected with a flip door 3, the aerobic reaction frame 21, the anaerobic reaction frame 22 and the anaerobic reaction frame 23 are provided with an adding mechanism, the adding mechanism is used to add a reactant to the sewage, the anaerobic reaction frame 22 and the anaerobic reaction frame 23 are provided with a drainage mechanism, the drainage mechanism is used to discharge the treated sewage into the next process.

[0030] The adding mechanism includes three feeding barrels 41, which are fixedly connected to the aerobic reaction frame 21, the anaerobic reaction frame 22 and the anaerobic reaction frame 23 respectively. The upper part of each feeding barrel 41 is rotatably connected with a flip cover 42, and the lower part of each feeding barrel 41 is fixedly connected with a feeding straight pipe 43, and the feeding straight pipe 43 is communicated with the feeding barrel 41. Each water inlet short pipe 28 is rotatably connected with an impeller 44, and each water inlet short pipe 28 is fixedly connected with a guide hopper 45. A spiral plate 46 is rotatably connected in each feeding straight pipe 43, and a transmission assembly 47 is connected between the spiral plate 46 and the impeller 44. The upper parts of the anaerobic reaction frame 22 and the anaerobic reaction frame 23 are fixedly connected with an isolation cover 48.

[0031] The transmission assembly 47 includes a pulley 1, a pulley 2 and a transmission belt. The impeller 44 is connected to the pulley 1, the spiral plate 46 is connected to the pulley 2, and a transmission belt is wound between the pulley 1 and the pulley 2.

[0032] The drainage mechanism includes two waterproof trough plates 51, which are fixedly connected to the inner walls of the anaerobic reaction frame 22 and the anaerobic reaction frame 23, respectively. A movable partition plate 52 is slidably connected to each of the waterproof trough plates 51, and a square hole is opened on the movable partition plate 52. The anaerobic reaction frame 22 and the anaerobic reaction frame 23 are fixedly connected to an electric push rod 53, and the telescopic rod of the electric push rod 53 is connected to the movable partition plate 52. The inner bottom surfaces of the anaerobic reaction frame 22 and the anaerobic reaction frame 23 are fixedly connected to two guide frames 54, and each group of two guide frames 54 is fixedly connected to the inner bottom surfaces of the anaerobic reaction frame 22 and the anaerobic reaction frame 23. 4 are all slidably connected with a movable baffle 55, two of the movable baffles 55 form a group, and the two movable baffles 55 of each group are in contact with each other, each of the movable baffles 55 is fixedly connected with a guide groove rod 56, and the guide groove rod 56 has a guide groove, one side of each of the movable partitions 52 is fixedly connected with two round rods 57, and the round rods 57 are located in the guide grooves of the guide groove rods 56, one side of each of the movable partitions 52 is fixedly connected with a filter press plate 58, and the side of the anaerobic reaction frame 22 is fixedly connected with a control panel 59, and the control panel 59 is used to control the electric push rod 53.

[0033] In actual work, sewage treatment usually has three main treatment processes: anaerobic treatment, anaerobic treatment and aerobic treatment. First, the operator adds the corresponding reactant into each feeding cylinder 41, and then passes the sewage into the anaerobic reaction frame 23. The water level of the sewage in the anaerobic reaction frame 23 is lower than the height of the hole above the movable baffle 52. At first, the movable baffle 55 blocks the pipe openings of the connecting elbow 1 26 and the connecting elbow 2 27, so that the reaction frames are not connected to each other. Then, when the sewage passes into the anaerobic reaction frame 23 through the water inlet short pipe 28, the water flow will impact the impeller 44 and make the impeller 44 rotate. The impeller 4 The rotation of the spiral plate 46 will drive the spiral plate 46 to rotate together through the transmission component 47. The rotation of the spiral plate 46 will push the reactant in the feeding cylinder 41 into the guide hopper 45 through the feeding straight pipe 43, and then the reactant is added into the sewage through the guide hopper 45. In this way, the reactant is added synchronously with the introduction of the sewage, so that the reactant and the sewage can be mixed more fully. After the sewage reacts in the anaerobic reaction frame 23 for a period of time, sludge will be generated, and the sludge will sink to the bottom. Then the operator controls the electric push rod 53 located on the anaerobic reaction frame 22 to retract through the control panel 59. The retraction of the electric push rod 53 will drive the moving anaerobic reaction frame 22 to retract. The plate 52 moves downward, and the downward movement of the movable partition 52 will drive the filter press plate 58 and the round rod 57 to move downward together. The filter press plate 58 can separate the sewage and the sludge. After the movable partition 52 moves downward, the sewage separated by the filter press plate 58 will flow to the other side of the movable partition 52 through the square hole on the movable partition 52, and then the round rod 57 moves downward to squeeze the guide groove rod 56, so that the two movable baffles 55 move horizontally in a direction away from each other, so that the connecting elbow 27 is no longer blocked, and then the sewage flows into the anaerobic reaction frame 22 through the connecting elbow 27, and so on, the sewage flows to the aerobic reaction frame in the same way. The sewage is treated in the reaction frame 21. When the sewage flows into the aerobic reaction frame 21, the operator starts the air pump 24 to aerate the sewage. When all the sewage is treated, it is discharged through the drain pipe 211. Then the operator opens the flip door 3 to clean the sludge in the anaerobic reaction frame 22 and the anaerobic reaction frame 23 respectively. When the sewage is introduced, the reactant is added simultaneously to make the reactant and the sewage mix more fully. By filtering the reacted sewage first and then discharging it, the sludge in the previous treatment process is not easy to flow into the next process with the sewage, and it is not easy to interfere with each other, thereby ensuring the stability of sewage treatment.

[0034] Example 2

[0035] On the basis of Example 1, Figure 8-10As shown, it also includes a mud-removing mechanism, which is arranged in the anaerobic reaction frame 22 and the anaerobic reaction frame 23. The mud-removing mechanism is used to assist in cleaning the sludge after the reaction. The mud-removing mechanism includes two long guide rods 61, and the two long guide rods 61 are respectively fixedly connected to the inner bottom surfaces of the anaerobic reaction frame 22 and the anaerobic reaction frame 23. The two long guide rods 61 are slidably connected with a sliding scraper 62, and one side of each sliding scraper 62 is fixedly connected with two pull rods 63, and each pull rod 63 is fixedly connected with a fixed block 64, and each pull rod 63 is slidably connected with a sliding ring 65, and each filter press plate 58 is slidably connected with a hanging rod 66, and a connecting rod 67 is connected between the hanging rod 66 and the sliding ring 65, and a soft cloth 68 is fixedly connected between the hanging rod 66 and the sliding scraper 62.

[0036] When the filter press plate 58 moves downward with the movable partition 52, the filter press plate 58 will drive the hanging rod 66 to move downward together. The downward movement of the hanging rod 66 will squeeze the connecting rod 67 downward. Since the connecting rod 67, the hanging rod 66 and the sliding ring 65 are all rotatably connected, the downward movement of the hanging rod 66 will drive the sliding ring 65 to move horizontally in the direction away from the sliding scraper 62 through the connecting rod 67. When the filter press plate 58 is reset upward and the operator opens the flip door 3 to clean the sludge, the operator can pull the pull rod 63 to drive the sliding scraper 62 to move horizontally. The horizontal movement of the sliding scraper 62 and the pull rod 63 will drive the sliding ring 65 to move horizontally together through the fixed block 64, and then the sliding ring 65 will drive the hanging rod 66 and the soft cloth 68 to move horizontally synchronously through the connecting rod 67, so that the sludge can be cleaned more conveniently.

[0037] Example 3

[0038] On the basis of Example 2, Figure 11-12 As shown, a collecting mechanism is also included, which is arranged on the anaerobic reaction frame 23. The collecting mechanism is used to collect biogas. The collecting mechanism includes a gas storage tank 71, which is fixedly connected to one side of the anaerobic reaction frame 23. A piston rod 72 is slidably connected in the gas storage tank 71, and the piston rod 72 is connected to the lower part of one of the movable partitions 52. An air collection pipe 73 is fixedly connected to the upper part of the gas storage tank 71, and the air collection pipe 73 passes through one side of the anaerobic reaction frame 23. A limiting frame 74 is fixedly connected to the side of one of the movable partitions 52, and a slide plate 75 is slidably connected to the limiting frame 74. A floating plate 76 is fixedly connected to one side of the slide plate 75.

[0039] When sewage is passed into the anaerobic reaction frame 23 and undergoes anaerobic reaction, a certain amount of biogas will be generated. Initially, the slide plate 75 blocks the square hole of the movable partition 52. Then, when the movable partition 52 moves downward, the movable partition 52 will also drive the limit frame 74 to move downward together. The downward movement of the limit frame 74 will drive the slide plate 75 and the floating plate 76 to move downward together. After the floating plate 76 moves downward and contacts the water surface, the floating plate 76 will float on the water surface due to buoyancy. Then, the movable partition 52 continues to move downward, so that the slide plate 75 will move relative to the movable partition 52. The partition 52 moves upward, thereby opening the square hole on the movable partition 52, and then the sewage flows out through the square hole, and then the movable partition 52 moves downward to drive the piston rod 72 to move downward, and the piston rod 72 moves downward to suck the air in the anaerobic reaction frame 23 into the gas storage tank 71 through the air collection pipe 73, and then suck in the biogas, and then the operator first guides the gas storage tank 71, and then resets the movable partition 52, so that the biogas in the anaerobic reaction frame 23 is isolated and discharged in time, making it safer for the operator to clean the sludge.

[0040] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A multi-stage domestic sewage treatment device, characterized in that: The invention comprises two support frames (1), one side of the two support frames (1) is fixedly connected to an aerobic reaction frame (21), one side of the aerobic reaction frame (21) is fixedly connected to a drainage pipe (211), the two support frames (1) are fixedly connected to an anaerobic reaction frame (22) and an anaerobic reaction frame (23), one side of the anaerobic reaction frame (23) is provided with a sealing cover (231), the aerobic reaction frame (21) is fixedly connected to an air pump (24), the lower part of the air pump (24) is fixedly connected to an aeration pipe (25), a connecting elbow (26) is fixedly connected between the aerobic reaction frame (21) and the anaerobic reaction frame (22), and the anaerobic reaction frame (22) and the anaerobic reaction frame (23) are connected to each other. A second connecting elbow pipe (27) is fixedly connected between the frames (23); a water inlet short pipe (28) is fixedly connected to the inner walls of the aerobic reaction frame (21), the anaerobic reaction frame (22) and the anaerobic reaction frame (23); a flip door (3) is rotatably connected to one side of the anaerobic reaction frame (22) and the anaerobic reaction frame (23); an adding mechanism is arranged on the aerobic reaction frame (21), the anaerobic reaction frame (22) and the anaerobic reaction frame (23); the adding mechanism is used to add a reactant into the sewage; a drainage mechanism is arranged in the anaerobic reaction frame (22) and the anaerobic reaction frame (23); the drainage mechanism is used to discharge the treated sewage into the next process.

2. A domestic sewage multi-stage treatment device as claimed in claim 1, characterized in that: The adding mechanism comprises three feeding barrels (41), the three feeding barrels (41) are respectively fixedly connected to the aerobic reaction frame (21), the anaerobic reaction frame (22) and the anaerobic reaction frame (23), the upper part of each feeding barrel (41) is rotatably connected to a flip cover (42), the lower part of each feeding barrel (41) is fixedly connected to a feeding straight pipe (43), and the feeding straight pipe (43) is communicated with the feeding barrel (41). Each of the water inlet short pipes (28) is rotatably connected to an impeller (44), each of the water inlet short pipes (28) is fixedly connected to a guide hopper (45), each of the feeding straight pipes (43) is rotatably connected to a spiral plate (46), a transmission assembly (47) is connected between the spiral plate (46) and the impeller (44), and an isolation cover (48) is fixedly connected to the upper part of the anaerobic reaction frame (22) and the anaerobic reaction frame (23).

3. A domestic sewage multi-stage treatment device as claimed in claim 2, characterized in that: The transmission assembly (47) comprises a first pulley, a second pulley and a transmission belt, the impeller (44) is connected to the first pulley, the spiral plate (46) is connected to the second pulley, and a transmission belt is wound between the first pulley and the second pulley.

4. A domestic sewage multi-stage treatment device as claimed in claim 3, characterized in that: The drainage mechanism comprises two waterproof trough plates (51), the two waterproof trough plates (51) are respectively fixedly connected to the inner walls of the anaerobic reaction frame (22) and the anaerobic reaction frame (23), each of the waterproof trough plates (51) is slidably connected to a movable partition plate (52), the movable partition plate (52) is provided with a square hole, the anaerobic reaction frame (22) and the anaerobic reaction frame (23) are both fixedly connected to an electric push rod (53), the telescopic rod of the electric push rod (53) is connected to the movable partition plate (52), the inner bottom surfaces of the anaerobic reaction frame (22) and the anaerobic reaction frame (23) are both fixedly connected to two guide frames (54), and each group of the two guide frames (54) is provided with a plurality of guide frames (54) connected to the inner bottom surfaces of the anaerobic reaction frame (22) and the anaerobic reaction frame (23). ) are slidably connected with a movable baffle (55), two movable baffles (55) form a group, and the two movable baffles (55) in each group are in contact with each other. Each movable baffle (55) is fixedly connected with a guide groove rod (56), and the guide groove rod (56) is provided with a guide groove. One side of each movable partition (52) is fixedly connected with two round rods (57), and the round rods (57) are located in the guide grooves of the guide groove rods (56). One side of each movable partition (52) is fixedly connected with a filter press plate (58). A control panel (59) is fixedly connected to the side of the anaerobic reaction frame (22), and the control panel (59) is used to control the electric push rod (53).

5. A domestic sewage multi-stage treatment device as claimed in claim 4, characterized in that: The invention also comprises a mud-removing mechanism, which is arranged in the anaerobic reaction frame (22) and the anaerobic reaction frame (23), and is used to assist in cleaning the sludge after the reaction. The mud-removing mechanism comprises two long guide rods (61), and the two long guide rods (61) are respectively fixedly connected to the inner bottom surface of the anaerobic reaction frame (22) and the anaerobic reaction frame (23). The two long guide rods (61) are both slidably connected to a sliding scraper (62), and each sliding scraper (62) is provided with a sliding scraper (62). Two pull rods (63) are fixedly connected to one side of the scraper (62), each of the pull rods (63) is fixedly connected to a fixed block (64), each of the pull rods (63) is slidably connected to a sliding ring (65), each of the filter press plates (58) is slidably connected to a hanging rod (66), a connecting rod (67) is connected between the hanging rod (66) and the sliding ring (65), and a soft cloth (68) is fixedly connected between the hanging rod (66) and the sliding scraper (62).

6. A domestic sewage multi-stage treatment device as claimed in claim 5, characterized in that: The anaerobic reaction frame (23) further comprises a collecting mechanism, the collecting mechanism being arranged on the anaerobic reaction frame (23) and being used for collecting biogas. The collecting mechanism comprises a gas storage tank (71), the gas storage tank (71) being fixedly connected to one side of the anaerobic reaction frame (23), a piston rod (72) being slidably connected inside the gas storage tank (71), the piston rod (72) being connected to the lower part of one of the movable partitions (52), an air collecting pipe (73) being fixedly connected to the upper part of the gas storage tank (71), the air collecting pipe (73) passing through one side of the anaerobic reaction frame (23), a limiting frame (74) being fixedly connected to the side of one of the movable partitions (52), a slide plate (75) being slidably connected to the limiting frame (74), and a floating plate (76) being fixedly connected to one side of the slide plate (75).

Images