A multi-stage wastewater purification treatment device

Abstract

This utility model relates to the field of wastewater treatment technology and discloses a multi-stage wastewater purification device, including a housing. The inner wall of the housing has a preliminary filtration chamber, a secondary filtration chamber, and a mixing chamber arranged from top to bottom. A debris discharge pipe is fixedly connected to one side of the housing, and a through groove communicating with the secondary filtration chamber is opened on one side of the debris discharge pipe. Driven by a second motor, this utility model can clean impurities in the rotating filter cylinder of the preliminary filtration stage using an arc-shaped scraper and an auger, and can also clean the U-shaped filter plate of the secondary filtration stage using a U-shaped scraper. This achieves automatic cleaning of impurities on the rotating filter cylinder and U-shaped filter plate, preventing impurities from clogging the filter holes and affecting the preliminary filtration effect. Manual cleaning is unnecessary, reducing the labor intensity of manual operation. Simultaneously, a protective plate prevents wastewater from interfering with the operation of the reciprocating screw, ensuring stable operation of the cleaning mechanism and thus guaranteeing the stability of the overall filtration and purification effect of the device.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a multi-stage wastewater purification and treatment device. Background Technology

[0002] A multi-stage wastewater treatment device is a type of equipment that uses multiple treatment units connected in series or working in concert to purify wastewater in stages and progressively, gradually reducing the concentration of pollutants until the wastewater meets discharge standards or reuse requirements.

[0003] Patent CN220597081U discloses a water pollution treatment tank, including a main body and further comprising a stirring mechanism, a first mounting mechanism, and a second mounting mechanism. The bottom end of the main body is fixedly connected to the top end of the stirring mechanism, and the side of the first mounting mechanism is fixedly connected to the side of the main body. The structure of the first mounting mechanism is the same as that of the second mounting mechanism. This invention uses a rotating mounting shaft to cause the stirring frame to rotate, thus stirring the wastewater and chemicals in a horizontal plane. Simultaneously, a transmission rod drives a driving bevel gear to rotate. The sides of the driving and driven bevel gear mesh with each other, causing the stirring frame to rotate, thus stirring the wastewater and chemicals vertically in a vertical plane. This allows the wastewater and chemicals to move irregularly inside the tank, improving stirring efficiency and quality, and ensuring uniform mixing of the wastewater and chemicals.

[0004] In the process of using the above-mentioned patent, the coarse and fine filter screens directly intercept impurities in the sewage. After long-term use, impurities are easily accumulated on the surface of the filter screen, and the impurities will gradually clog the filter holes. Frequent manual disassembly and cleaning are required, which not only increases labor intensity, but may also lead to a decrease in filtration effect due to untimely cleaning. Even if the disassembly and assembly are convenient, frequent disassembly, cleaning or replacement will still increase labor costs and downtime. Based on this, a multi-stage sewage purification treatment device is proposed for improvement. Utility Model Content

[0005] In view of the problems of easy clogging of the filter screen and high maintenance frequency of the above-mentioned existing devices, this utility model is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a multi-stage sewage purification treatment device, including a box body, wherein a preliminary filtration chamber, a secondary filtration chamber and a mixing chamber are respectively opened from top to bottom on the inner wall of the box body, a debris discharge pipe is fixedly connected to one side of the box body, and a through groove communicating with the secondary filtration chamber is opened on one side of the debris discharge pipe; the preliminary filtration chamber includes a filtration mechanism for filtration and a cleaning mechanism for removing debris.

[0007] A hollow rotating shaft is rotatably connected to the side wall of the housing. A rotating filter cylinder is fixedly connected to one end of the hollow rotating shaft. Several rollers are fixedly connected to one side of the surface of the rotating filter cylinder. Several rollers are in contact with the inner wall of the primary filter chamber. A U-shaped filter plate is provided on the inner wall of the secondary filter chamber.

[0008] A second motor is provided on one side of the waste collection tube. A reciprocating lead screw is fixedly sleeved on the output shaft of the second motor. One end of the surface of the reciprocating lead screw is rotatably connected to an auger through a belt drive assembly. A fixed tube is fixedly sleeved on one side of the top of the waste collection tube. One end of the fixed tube passes through the side wall of the housing and extends into the interior of the rotating filter cylinder. The auger is rotatably connected to the inner wall of the fixed tube. An arc-shaped scraper is fixedly connected to the top slot of the fixed tube. The top of the arc-shaped scraper contacts the inner wall of the rotating filter cylinder.

[0009] As a preferred embodiment, one end of the reciprocating screw passes through the side wall of the debris discharge tube and is rotatably connected to the inner wall of the secondary filter chamber. A U-shaped scraper is threadedly connected to the surface of the reciprocating screw. The bottom surface of the U-shaped scraper contacts the inner wall of the U-shaped filter plate. A protective plate is fixedly connected to the inner wall of the secondary filter chamber. The protective plate is located above the reciprocating screw, and the U-shaped scraper is slidably connected to the surface of the protective plate.

[0010] As a preferred embodiment, a groove is provided on one side of the bottom of the box body, the bottom end of the waste discharge pipe is connected to the inside of the groove, and a waste storage box is slidably connected to the inner wall of the groove.

[0011] As a preferred embodiment, the U-shaped filter plate is fixedly connected to dovetail plates on both sides, the dovetail plates are slidably connected to the dovetail groove on the inner wall of the secondary filter chamber, one end of the U-shaped filter plate is fixedly connected to a limiting plate, the limiting plate is provided with bolts inside, and one end of the bolts is threaded to the side wall of the box.

[0012] As a preferred embodiment, a first motor is provided on one side of the housing, and the output shaft of the first motor is rotatably connected to a gear plate via gears. A hollow rotating shaft is fixedly sleeved inside the gear plate, and the other end of the hollow rotating shaft is connected to a water inlet pipe via a rotary joint.

[0013] As a preferred embodiment, a third motor is provided on one side of the bottom of the box, and a stirring rod is fixedly sleeved on the output shaft of the third motor, with the stirring rod located inside the mixing chamber.

[0014] As a preferred embodiment, a reagent pipe is provided on the upper part of one side of the mixing chamber, and a drain pipe is provided on the lower part of one side of the mixing chamber.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. Driven by the second motor, this utility model can clean impurities in the rotating filter cylinder during the initial filtration stage using an arc-shaped scraper and an auger, and also clean the U-shaped filter plate during the secondary filtration using a U-shaped scraper. This achieves automatic cleaning of impurities on the rotating filter cylinder and U-shaped filter plate, preventing impurities from clogging the filter holes and affecting the initial filtration effect. It eliminates the need for manual cleaning, reducing the labor intensity of manual operation. At the same time, the protective plate prevents sewage from interfering with the operation of the reciprocating screw, ensuring the stable operation of the cleaning mechanism and thus guaranteeing the stability of the filtration and purification effect of the entire device.

[0017] 2. By using dovetail plates, limiting plates, and bolts, this utility model can firmly lock the U-shaped filter plate in the working position, preventing it from shifting when impacted by sewage or scraped by the U-shaped scraper. On the other hand, by simply loosening the bolts, the U-shaped filter plate can be removed from the secondary filtration chamber for cleaning, maintenance, or replacement, which shortens maintenance time, reduces operating difficulty, and ensures the continuous and stable operation of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one side of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the other side of the structure of this utility model;

[0020] Figure 3 This is a front cross-sectional view of the present invention.

[0021] Figure 4 This is a partial structural breakdown diagram of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Housing; 11. Preliminary filtration chamber; 12. Secondary filtration chamber; 13. Mixing chamber; 14. Tank; 15. Storage tank; 2. Filtration mechanism; 21. First motor; 22. Gear; 23. Gear disc; 24. Hollow rotating shaft; 25. Rotary joint; 26. Inlet pipe; 27. Rotary filter cartridge; 28. Roller; 29. ​​U-shaped filter plate; 3. Dovetail plate; 31. Limiting plate; 32. Bolt; 4. Waste discharge pipe; 5. Cleaning mechanism; 51. Second motor; 52. Reciprocating screw; 53. U-shaped scraper; 54. Protective plate; 55. Belt drive assembly; 56. Screwdriver; 57. Fixing pipe; 58. Arc-shaped scraper; 6. Third motor; 61. Stirring rod; 7. Chemical pipe; 8. Drain pipe. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a multi-stage sewage purification treatment device, including a box 1. The inner wall of the box 1 is provided with a preliminary filtration chamber 11, a secondary filtration chamber 12 and a mixing chamber 13 from top to bottom. A debris discharge pipe 4 is fixedly connected to one side of the box 1. A through groove communicating with the secondary filtration chamber 12 is provided on one side of the debris discharge pipe 4. The preliminary filtration chamber 11 includes a filtration mechanism 2 for filtration and a cleaning mechanism 5 for removing debris.

[0026] A hollow rotating shaft 24 is rotatably connected to the side wall of the housing 1. A rotating filter cylinder 27 is fixedly connected to one end of the hollow rotating shaft 24. Several rollers 28 are fixedly connected to one side of the surface of the rotating filter cylinder 27. Several rollers 28 are in contact with the inner wall of the primary filtration chamber 11. A U-shaped filter plate 29 is provided on the inner wall of the secondary filtration chamber 12.

[0027] A second motor 51 is provided on one side of the waste collection pipe 4. A reciprocating screw 52 is fixedly sleeved on the output shaft of the second motor 51. One end of the surface of the reciprocating screw 52 is rotatably connected to an auger 56 through a belt drive assembly 55. A fixed pipe 57 is fixedly sleeved on one side of the top of the waste collection pipe 4. One end of the fixed pipe 57 passes through the side wall of the housing 1 and extends into the interior of the rotating filter cylinder 27. The auger 56 is rotatably connected to the inner wall of the fixed pipe 57. An arc-shaped scraper 58 is fixedly connected to the top slot of the fixed pipe 57. The top of the arc-shaped scraper 58 contacts the inner wall of the rotating filter cylinder 27.

[0028] One end of the reciprocating screw 52 passes through the side wall of the waste collection pipe 4 and is rotatably connected to the inner wall of the secondary filter chamber 12. A U-shaped scraper 53 is threadedly connected to the surface of the reciprocating screw 52. The bottom surface of the U-shaped scraper 53 contacts the inner wall of the U-shaped filter plate 29. A protective plate 54 is fixedly connected to the inner wall of the secondary filter chamber 12. The protective plate 54 is located above the reciprocating screw 52. The U-shaped scraper 53 is slidably connected to the surface of the protective plate 54.

[0029] A box groove 14 is also provided on one side of the bottom of the box body 1. The bottom end of the waste pipe 4 is connected to the inside of the box groove 14. A waste storage box 15 is slidably connected to the inner wall of the box groove 14.

[0030] A first motor 21 is provided on one side of the housing 1. The output shaft of the first motor 21 is rotatably connected to a gear 23 via a gear 22. A hollow rotating shaft 24 is fixedly sleeved inside the gear 23. The other end of the hollow rotating shaft 24 is connected to a water inlet pipe 26 via a rotary joint 25.

[0031] During use, wastewater is transported through the inlet pipe 26, enters the hollow rotating shaft 24 through the rotary joint 25, and finally flows into the rotating filter cartridge 27. The first motor 21 is started, and its output shaft drives the gear plate 23 to rotate through the gear 22, which in turn causes the hollow rotating shaft 24 to drive the rotating filter cartridge 27 to rotate synchronously. The roller 28 is used to assist the rotating filter cartridge 27 to rotate stably. Wastewater seeps out through the filter holes on the surface of the rotating filter cartridge 27 to the preliminary filtration chamber 11, achieving preliminary filtration of larger impurities in the wastewater. The wastewater after preliminary filtration flows from the preliminary filtration chamber 11 into the secondary filtration chamber 12, and undergoes secondary filtration through the U-shaped filter plate 29 to intercept smaller impurities and further purify the wastewater.

[0032] When cleaning and impurity removal are required, the second motor 51 is started, and its output shaft drives the reciprocating screw 52 to rotate. The reciprocating screw 52 drives the auger 56 to rotate in the fixed tube 57 through the belt drive assembly 55. When the rotating filter cylinder 27 rotates, the impurities on its inner wall are scraped off by the arc-shaped scraper 58 and fall into the slot of the fixed tube 57. Then, they are transported by the auger 56 to the impurity drop pipe 4 and finally enter the impurity storage box 15 in the box trough 14 through the impurity drop pipe 4.

[0033] When the reciprocating screw 52 rotates, the U-shaped scraper 53 on its surface slides back and forth along the surface of the protective plate 54. The protective plate 54 is used to prevent sewage from interfering with the operation of the reciprocating screw 52. The U-shaped scraper 53 scrapes off the impurities trapped on the U-shaped filter plate 29. The impurities enter the impurity drop pipe 4 through the groove of the impurity drop pipe 4 and finally fall into the impurity storage box 15. The impurity storage box 15 slides in the box groove 14 and can be periodically extracted to clean the collected impurities, ensuring the continuous operation of the device.

[0034] Driven by the second motor 51, this design can clean impurities in the rotating filter cylinder 27 of the preliminary filtration stage through the arc-shaped scraper 58 and the auger 56, and also clean the U-shaped filter plate 29 of the secondary filtration stage with the help of the U-shaped scraper 53. This achieves automatic cleaning of impurities on the rotating filter cylinder 27 and the U-shaped filter plate 29, preventing impurities from clogging the filter holes and affecting the preliminary filtration effect. It eliminates the need for manual cleaning, reducing the labor intensity of manual operation. At the same time, the protective plate 54 prevents sewage from interfering with the operation of the reciprocating screw 52, ​​ensuring the stable operation of the cleaning mechanism 5, thereby ensuring the stability of the filtration and purification effect of the entire device.

[0035] Reference Figures 1-4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: dovetail plates 3 are fixedly connected to both sides of the U-shaped filter plate 29, the dovetail plates 3 are slidably connected to the dovetail groove on the inner wall of the secondary filtration chamber 12, and a limiting plate 31 is fixedly connected to one end of the U-shaped filter plate 29. A bolt 32 is provided inside the limiting plate 31, and one end of the bolt 32 is threadedly connected to the side wall of the box 1.

[0036] During use, after the U-shaped filter plate 29 slides completely into the secondary filtration chamber 12 through the dovetail plate 3, the limiting plate 31 at one end of it is attached to the side wall of the box 1. By tightening the bolt 32 in the limiting plate 31, the bolt 32 is fixed to the side wall of the box 1, thereby firmly locking the U-shaped filter plate 29 in the working position and preventing it from shifting when the sewage impacts or the U-shaped scraper 53 scrapes.

[0037] This design, through the setting of dovetail plate 3, limiting plate 31 and bolt 32, can firmly lock the U-shaped filter plate 29 in the working position to prevent it from shifting when sewage impacts or the U-shaped scraper 53 scrapes. On the other hand, the U-shaped filter plate 29 can be removed from the secondary filtration chamber 12 for cleaning, maintenance or replacement simply by loosening the bolt 32, which shortens the maintenance time, reduces the difficulty of operation and ensures the continuous and stable operation of the device.

[0038] Reference Figures 1-4 This is the third embodiment of the present utility model. The difference between this embodiment and the second embodiment is that a third motor 6 is provided on one side of the bottom of the box 1, and a stirring rod 61 is fixedly sleeved on the output shaft of the third motor 6. The stirring rod 61 is located inside the mixing chamber 13.

[0039] A reagent pipe 7 is provided on the upper part of one side of the mixing chamber 13, and a drain pipe 8 is provided on the lower part of one side of the mixing chamber 13.

[0040] During use, the wastewater filtered by the secondary filtration chamber 12 flows into the mixing chamber 13. At this time, purification agents are added into the mixing chamber 13 through the agent pipe 7 to remove residual soluble pollutants, microorganisms, etc. in the wastewater. The third motor 6 is started, and its output shaft drives the stirring rod 61 to rotate at high speed, so that the wastewater and the added agents are mixed evenly to ensure that the agents play an efficient purification role. After the wastewater completes the agent reaction, the purified water can be discharged through the drain pipe 8.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-stage wastewater purification treatment device, comprising a housing (1), characterized in that: The inner wall of the box (1) is provided with a preliminary filtration chamber (11), a secondary filtration chamber (12) and a mixing chamber (13) from top to bottom. A waste pipe (4) is fixedly connected to one side of the box (1). A through groove connected to the secondary filtration chamber (12) is provided on one side of the waste pipe (4). The preliminary filtration chamber (11) includes a filtration mechanism (2) for filtration and a cleaning mechanism (5) for removing impurities. A hollow rotating shaft (24) is rotatably connected to the side wall of the box (1). A rotating filter cylinder (27) is fixedly connected to one end of the hollow rotating shaft (24). Several rollers (28) are fixedly connected to one side of the surface of the rotating filter cylinder (27). Several rollers (28) are in contact with the inner wall of the primary filtration chamber (11). The inner wall of the secondary filtration chamber (12) is provided with a U-shaped filter plate (29). A second motor (51) is provided on one side of the waste collection tube (4). A reciprocating screw (52) is fixedly sleeved on the output shaft of the second motor (51). One end of the surface of the reciprocating screw (52) is rotatably connected to an auger (56) through a belt drive assembly (55). A fixed tube (57) is fixedly sleeved on one side of the top of the waste collection tube (4). One end of the fixed tube (57) passes through the side wall of the box body (1) and extends into the interior of the rotating filter cylinder (27). The auger (56) is rotatably connected to the inner wall of the fixed tube (57). An arc-shaped scraper (58) is fixedly connected to the top slot of the fixed tube (57). The top end of the arc-shaped scraper (58) is in contact with the inner wall of the rotating filter cylinder (27).

2. The multi-stage wastewater purification treatment device according to claim 1, characterized in that: One end of the reciprocating screw (52) passes through the side wall of the waste collection pipe (4) and is rotatably connected to the inner wall of the secondary filter chamber (12). A U-shaped scraper (53) is threadedly connected to the surface of the reciprocating screw (52). The bottom surface of the U-shaped scraper (53) is in contact with the inner wall of the U-shaped filter plate (29). A protective plate (54) is fixedly connected to the inner wall of the secondary filter chamber (12). The protective plate (54) is located above the reciprocating screw (52). The U-shaped scraper (53) is slidably connected to the surface of the protective plate (54).

3. The multi-stage wastewater purification treatment device according to claim 1, characterized in that: The bottom side of the box body (1) is also provided with a box groove (14), the bottom end of the waste pipe (4) is connected to the inside of the box groove (14), and a waste storage box (15) is slidably connected to the inner wall of the box groove (14).

4. The multi-stage wastewater purification treatment device according to claim 1, characterized in that: The U-shaped filter plate (29) is fixedly connected to dovetail plates (3) on both sides. The dovetail plates (3) are slidably connected to the dovetail groove on the inner wall of the secondary filtration chamber (12). One end of the U-shaped filter plate (29) is fixedly connected to a limiting plate (31). The limiting plate (31) is provided with bolts (32) inside. One end of the bolts (32) is threaded to the side wall of the box body (1).

5. The multi-stage wastewater purification treatment device according to claim 1, characterized in that: The box (1) is provided with a first motor (21) on one side. The output shaft of the first motor (21) is rotatably connected to a gear disk (23) through a gear (22). A hollow rotating shaft (24) is fixedly sleeved inside the gear disk (23). The other end of the hollow rotating shaft (24) is connected to a water inlet pipe (26) through a rotary joint (25).

6. The multi-stage wastewater purification treatment device according to claim 1, characterized in that: A third motor (6) is provided on one side of the bottom of the box (1). The output shaft of the third motor (6) is fixedly sleeved with a stirring rod (61), which is located inside the mixing chamber (13).

7. The multi-stage wastewater purification treatment device according to claim 6, characterized in that: A medicine pipe (7) is provided on the upper part of one side of the mixing chamber (13), and a drain pipe (8) is provided on the lower part of one side of the mixing chamber (13).

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