A filtering and sedimentation device for wastewater treatment

Abstract

This utility model discloses a filtration and sedimentation device for wastewater treatment, including a housing, an inlet pipe, an outlet pipe, a filtration mechanism, a sedimentation mechanism, a guide pipe, and a partition plate. The inlet pipe is fixed to the side wall of the housing; the outlet pipe is fixed to the side wall at one end of the housing; the partition plate is fixed inside the housing, dividing the housing into a filtration zone and a sedimentation zone; the guide pipe is located between a pair of partition plates, with its two ends connected to the filtration zone and the sedimentation zone respectively; the filtration mechanism and the sedimentation mechanism are respectively installed inside the housing in the filtration zone and the sedimentation zone; a rotating frame is rotatably connected to the side wall of the housing via bearings, and a partition plate is fixed at the center of the rotating frame; the filter screen is semi-circular, and there is a pair of filter screens, which are respectively installed on the rotating frame on the upper and lower sides of the partition plate; a motor I is fixed to the outer side wall of the housing. When the filter screen rotates to the top, residue falls onto the upper surface of the partition plate, facilitating cleaning of the filter screen without stopping the machine and preventing filter screen clogging.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and specifically relates to a filtration and sedimentation device for wastewater treatment. Background Technology

[0002] When purifying industrial wastewater, existing purification devices use relatively simple methods. In the process of wastewater purification, most wastewater purification equipment only has the function of filtering impurities and does not have the function of efficient purification. In some wastewater purification equipment, the reagents cannot dissolve quickly with the wastewater, so the reagents cannot exert their maximum purification reaction effect, which may affect the purification effect of the wastewater.

[0003] A search revealed a multi-stage industrial wastewater purification device with existing technology announcement number CN221854263U, comprising a drive assembly, a filter assembly, a cleaning assembly, a liquid extraction assembly, a spraying assembly, a stirring assembly, a tank, and an inlet pipe. The inlet pipe is located above the tank, and the drive assembly is also located above the tank. A cleaning assembly with a cleaning function is mounted on the side wall of the drive assembly, as is a stirring assembly with a stirring function. The filter assembly with a filtration function is located inside the tank, and a liquid extraction assembly is located on one side of the tank, with a spraying assembly at one end of the liquid extraction assembly. However, this process has the following drawbacks: after the cleaning assembly cleans the filter assembly, the residue on the filter screen cannot be discharged, and long-term accumulation affects the filtration efficiency of the filter assembly.

[0004] A search revealed a multi-stage wastewater sedimentation and purification device with prior art announcement number CN219804332U, comprising a multi-stage sedimentation tank, a filter tank, and a flow guide channel. The multi-stage sedimentation tank includes a primary sedimentation tank, a secondary sedimentation tank, a tertiary sedimentation tank, and a disinfection tank, with the disinfection tank connected to the outlet of the tertiary sedimentation tank. The filter tank includes filter tank one and filter tank two. Filter tank one is located on the side wall of the secondary and tertiary sedimentation tanks near the previous stage, and filter tank two is located on the side wall of the primary sedimentation tank near the secondary sedimentation tank. The flow guide channel is located between filter tank one and filter tank two, connecting the adjacent side walls between them. The filter screens on the filter tanks are difficult to clean, leading to filter screen blockage, affecting water flow in the filter tanks, and thus impacting wastewater purification efficiency. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a filtration and sedimentation device for wastewater treatment. When the filter screen rotates to the top, the residue falls onto the upper surface of the partition plate. Then, the electric push rod provides power to drive the scraper to move, scraping the residue above the partition plate to the discharge port for easy cleaning of the filter screen and preventing filter screen blockage.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A filtration and sedimentation device for wastewater treatment includes a housing, an inlet pipe, an outlet pipe, a filtration mechanism, a sedimentation mechanism, a guide pipe, and a partition plate. The inlet pipe is fixed to the side wall of the housing. The outlet pipe is fixed to the side wall at one end of the housing. The partition plate is fixed inside the housing and divides the housing into a filtration zone and a sedimentation zone. The guide pipe is located between a pair of partition plates, and its two ends are connected to the filtration zone and the sedimentation zone, respectively. The filtration mechanism and the sedimentation mechanism are installed inside the housing of the filtration zone and the sedimentation zone, respectively.

[0008] The filtration mechanism includes a filter screen, a rotating frame, a motor I, a partition, a scraper, an electric push rod, and a collection box. The rotating frame is rotatably connected to the side wall of the box via bearings. The partition is fixed at the center of the rotating frame. The filter screen is semi-circular, and there is a pair of filter screens, which are respectively installed on the rotating frame on the upper and lower sides of the partition. The motor I is fixed on the outer side wall of the box, and the output end of the motor I is connected to one end of the rotating frame. The end of the rotating frame away from the motor I has a discharge port. There is a pair of scrapers, which are located on the upper and lower sides of the partition. The electric push rod is fixed on the rotating frame, and the output shaft of the electric push rod is connected to the scraper. The collection box is fixed on the outer side wall of the box, and the collection box corresponds to the discharge port.

[0009] The vibration mechanism includes a motor II, a cam, and a spring; the partition plate is provided with a mounting groove, and both ends of the filter screen are installed inside the mounting groove; the motor II is fixed to the top of the housing, and the output end of the motor II is provided with a cam, which is located above the filter screen; the side wall of the rotating frame is provided with a guide groove, the guide plate is fixed to the filter screen, and one end of the guide plate is movably connected in the guide groove; the spring is located inside the guide groove, and the spring is connected between the rotating frame and the guide plate, and a damping block is provided at the connection between the spring and the rotating frame.

[0010] The water guide pipe is equipped with a water pump and a baffle cylinder; the baffle cylinder is equipped with a baffle fan inside, which is rotatably connected to the side wall of the baffle cylinder, and a medicine inlet pipe is provided on the side wall of the baffle cylinder near the bottom.

[0011] The side wall of the housing is provided with a support plate, which is semi-circular and located below the rotating frame. The support plate is in contact with the filter screen below the partition.

[0012] The water inlet pipe is fixed to the bottom of the collection box, and one end passes through the rotating frame; the water inlet of the water inlet pipe is located below the partition.

[0013] The sedimentation mechanism includes sedimentation cylinder I, guide plates, a drain pipe, and sedimentation cylinder II. Sedimentation cylinder I is fixed near the top of the tank and connected to the water pipe. Several guide plates are provided and evenly fixed inside sedimentation cylinder I. Sedimentation cylinder II is located below sedimentation cylinder I and is fixed at the bottom of the tank. Sedimentation cylinder II is connected to the outlet pipe. Sedimentation hoppers are provided at the bottom of both sedimentation cylinder I and sedimentation cylinder II, and the drain pipe is connected to the bottom of the sedimentation hoppers.

[0014] Several guide plates are provided and arranged at an angle inside the sedimentation cylinder I; the guide plates are arranged in a stepped manner downwards along the direction from the water guide pipe to the drainage trough.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1) The filter screen filters the wastewater; when the filter screen is clogged, motor I provides power to drive the rotating frame to rotate, and the rotating frame drives the filter screen and the baffle to rotate, thereby swapping the filter screens on the upper and lower sides of the baffle; when the filter screen rotates to the upper side, the residue falls onto the upper surface of the baffle; then the electric push rod provides power to drive the scraper to move, scraping the residue above the baffle to the discharge port for discharge;

[0017] 2) The reagent enters the turbulence chamber through the inlet pipe and mixes with the wastewater; then the wastewater flows by the pump, and the wastewater drives the turbulence fan to rotate to mix the wastewater and reagent;

[0018] 3) The filtered wastewater enters sedimentation tank I through the water guide pipe, where it settles. The supernatant then flows into sedimentation tank II for secondary sedimentation. The bottom sediment is discharged through the drain pipe. After sedimentation, the supernatant in sedimentation tank II is discharged through the outlet pipe. The baffle plate directs the wastewater entering through the water guide pipe towards the bottom of sedimentation tank I, preventing wastewater from directly entering sedimentation tank II through the drain trough. It also prevents the water flow from stirring up the sediment at the bottom of sedimentation tank I, thus affecting the sedimentation effect. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the structure of a filtration and sedimentation device for wastewater treatment according to this utility model. Figure 1 ;

[0020] Appendix Figure 2 This is a schematic diagram of the structure of a filtration and sedimentation device for wastewater treatment according to this utility model. Figure 2 ;

[0021] Appendix Figure 3 This is a schematic diagram of the internal structure of a filtration and sedimentation device for wastewater treatment according to this utility model;

[0022] Appendix Figure 4 This is a schematic diagram of the filtration mechanism in a filtration and sedimentation device for wastewater treatment according to this utility model;

[0023] Appendix Figure 5 This is a schematic diagram of the internal structure of the filtration mechanism in a filtration and sedimentation device for wastewater treatment according to this utility model;

[0024] Appendix Figure 6 This is a schematic diagram of the sedimentation mechanism in a filtration and sedimentation device for wastewater treatment according to this utility model;

[0025] Appendix Figure 7 This is a schematic diagram of the water guide pipe in a filtration and sedimentation device for wastewater treatment according to this utility model;

[0026] In the diagram: 1. Box body; 2. Inlet pipe; 3. Outlet pipe; 4. Filtration mechanism; 401. Filter screen; 402. Rotating frame; 4021. Discharge port; 4022. Guide groove; 403. Motor I; 404. Partition plate; 4041. Inlet; 4042. Mounting groove; 405. Scraper; 406. Electric push rod; 407. Collection box; 408. Vibration mechanism; 4081. Motor II; 4082. Cam; 4083. Spring; 4084. Guide plate; 409. Support plate; 5. Sedimentation mechanism; 501. Sedimentation cylinder I; 502. Baffle plate; 503. Sewage pipe; 504. Sedimentation cylinder II; 6. Water guide pipe; 601. Water pump; 602. Baffle cylinder; 603. Chemical inlet pipe; 604. Baffle fan; 7. Partition plate. Detailed Implementation

[0027] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-7 The technical solution of this utility model will be further described in detail below.

[0028] A filtration and sedimentation device for wastewater treatment includes a housing 1, an inlet pipe 2, an outlet pipe 3, a filtration mechanism 4, a sedimentation mechanism 5, a guide pipe 6, and a partition plate 7. The inlet pipe 2 is fixed to the side wall of the housing 1. The outlet pipe 3 is fixed to the side wall at one end of the housing 1. The partition plate 7 is fixed inside the housing 1, dividing the housing 1 into a filtration zone and a sedimentation zone. The guide pipe 6 is located between a pair of partition plates 7, with its two ends connected to the filtration zone and the sedimentation zone, respectively. The filtration mechanism 4 and the sedimentation mechanism 5 are installed inside the housing 1 in the filtration zone and the sedimentation zone, respectively. Wastewater enters the filtration zone inside the housing 1 through the inlet pipe 2 for filtration, removing residues. The filtered wastewater then enters the sedimentation zone through the guide pipe 6 for sedimentation, thereby achieving multi-stage treatment of wastewater and improving wastewater purification efficiency.

[0029] The filtration mechanism 4 includes a filter screen 401, a rotating frame 402, a motor I 403, a partition 404, a scraper 405, an electric push rod 406, and a collection box 407. The rotating frame 402 is rotatably connected to the side wall of the box 1 via bearings. The partition 404 is fixed at the center of the rotating frame 402. The filter screen 401 is semi-circular, and the residue filtered in the wastewater accumulates along the bottom of the filter screen 401, which can reduce the clogging of the filter screen 401. There is a pair of filter screens 401, which are respectively installed on the rotating frame 402 on the upper and lower sides of the partition 404. The motor I 403 is fixed on the outer side wall of the box 1, and the output end of the motor I 403 is connected to one end of the rotating frame 402. The end of the rotating frame 402 away from the motor I 403 is provided with a discharge port 4021. There is a pair of scrapers 405, and the scrapers 405 are located on the partition. The upper and lower sides of plate 404; electric push rod 406 is fixed on rotating frame 402, and the output shaft of electric push rod 406 is connected to scraper 405; collection box 407 is fixed on the outer wall of box 1, and collection box 407 corresponds to discharge port 4021; filter screen 401 filters wastewater and filters the residue in the middle of the wastewater to facilitate subsequent wastewater treatment. When filter screen 401 is blocked, motor I 403 provides power to drive rotating frame 402 to rotate. Rotating frame 402 drives filter screen 401 and partition plate 404 to rotate, thereby swapping the filter screen 401 on the upper and lower sides of partition plate 404. When filter screen 401 rotates to the upper side, the residue falls onto the upper surface of partition plate 404; then electric push rod 406 provides power to drive scraper 405 to move, scraping the residue above partition plate 404 to discharge port.

[0030] The filter screen 401 is equipped with a vibration mechanism 408; the vibration mechanism 408 includes a motor II 4081, a cam 4082, a spring 4083, and a guide plate 4084; the partition plate 404 is provided with a mounting groove 4042, and both ends of the filter screen 401 are installed inside the mounting groove 4042; the motor II 4081 is fixed to the top of the housing 1, and the output end of the motor II 4081 is provided with a cam 4082, which is located above the filter screen 401; the side wall of the rotating frame 402 is provided with a guide groove 4022, and the guide plate 4084 is fixed to the filter screen 401, with one end of the guide plate 4084 movably connected to the guide groove 402. 2. Inside; spring 4083 is located inside the guide groove and is connected between the rotating frame and the guide plate. A damping block is provided at the connection between spring 4083 and rotating frame 402. Motor II 4081 provides power to drive cam 4082 to rotate. Cam 4082 squeezes filter screen 401. Filter screen 401 moves along mounting groove 4042, thereby compressing spring 4083. When cam 4082 moves away from filter screen 401, spring 4083 resumes driving filter screen 401 to move, causing filter screen 401 to vibrate, thereby causing residue on filter screen 401 to fall onto partition 404 and be discharged by scraper.

[0031] The water guide pipe 6 is equipped with a water pump 601 and a baffle cylinder 602; the baffle cylinder 602 is equipped with a baffle fan 604 inside, which is rotatably connected to the side wall of the baffle cylinder; a drug inlet pipe 603 is provided on the side wall of the baffle cylinder 602 near the bottom; the drug enters the baffle cylinder 602 through the drug inlet pipe 603 and mixes with the wastewater; then the wastewater flows by the pump 601, and the wastewater drives the baffle fan 604 to rotate to mix the wastewater and the drug.

[0032] The side wall of the housing 1 is provided with a support plate 409, which is semi-circular and located below the rotating frame 402. The support plate 409 is in contact with the filter screen 401 below the partition 404; this can prevent wastewater from causing the filter screen to move downwards, thereby damaging the spring.

[0033] The inlet pipe 2 is fixed to the bottom of the collection box 407, and one end passes through the rotating frame 402; the inlet of the inlet pipe 2 is located below the partition 404; the rotating frame 402 rotates around the inlet pipe 2 to facilitate the wastewater to enter the filter screen 401 for filtration.

[0034] The sedimentation mechanism 5 includes sedimentation cylinder I 501, guide plate 502, drain pipe 503, and sedimentation cylinder II 504. Sedimentation cylinder I 501 is fixed near the top of the tank 1 and is connected to the water guide pipe 6. Several guide plates 502 are provided and evenly fixed inside sedimentation cylinder I 501. Sedimentation cylinder II 504 is located below sedimentation cylinder I 501 and is fixed at the bottom of the tank 1. Sedimentation cylinder II 504 is connected to the outlet pipe 3. Sedimentation hoppers are provided at the bottom of both sedimentation cylinder I 501 and sedimentation cylinder II 504, and the drain pipe 503 is connected to the bottom of the sedimentation hoppers. Filtered wastewater enters sedimentation cylinder I 501 through the water guide pipe, settles, and then the supernatant flows into sedimentation cylinder II 504 for secondary sedimentation. The bottom sediment is discharged through the drain pipe 503. The supernatant of the wastewater in sedimentation cylinder II 504 after sedimentation is discharged through the outlet pipe 3.

[0035] The guide plates 502 are provided in several units and are arranged obliquely inside the sedimentation cylinder I 501. The guide plates 502 are arranged in a stepped manner downwards along the direction from the water guide pipe 6 to the drainage trough. The guide plates 502 can make the wastewater entering through the water guide pipe 6 flow to the bottom of the sedimentation cylinder I 501, preventing the wastewater from directly entering the sedimentation cylinder II 504 through the drainage trough. At the same time, it can prevent the water flow from rolling up the sediment at the bottom of the sedimentation cylinder I 501, which would affect the sedimentation effect.

[0036] A filtration and sedimentation device for wastewater treatment operates as follows: Wastewater enters the filtration zone inside the housing 1 through the inlet pipe 2. The filter screen 401 filters the wastewater, removing residues in the middle of the wastewater to facilitate subsequent wastewater treatment. When the filter screen 401 becomes clogged, the motor 1 403 provides power to drive the rotating frame 402 to rotate. The rotating frame 402 drives the filter screen 401 and the partition plate 404 to rotate, thereby swapping the filter screens 401 on the upper and lower sides of the partition plate 404. When the filter screen 401 rotates to the top, the residue falls onto the upper surface of the partition plate 404. Then, the electric push rod 406 provides power to drive the scraper 405 to move, scraping the residue above the partition plate 404 to the discharge port. The filtered wastewater is mixed with the reagent and enters the sedimentation zone through the water guide pipe 6 for sedimentation, thus achieving multi-stage treatment of wastewater and improving the purification efficiency of wastewater.

[0037] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] In the description of this utility model, the connection methods are divided into fixed connection and movable connection. Fixed connection methods include, but are not limited to, welding and bolting; movable connection methods include, but are not limited to, sliding connection, rotating connection, and threaded connection. The connection method to achieve the desired effect needs to be selected according to the application of the solution. The above-mentioned inlet pipe, guide pipe, outlet pipe, and medicine inlet pipe are all equipped with electromagnetic valves for controlling opening and closing. The outlet pipe is connected to an external water pump; the sewage pipe is connected to an external sewage pump. These are existing technologies and will not be described in detail.

[0039] In summary, the power systems including but not limited to Motor I, Motor II, electric actuator, water pump, and their respective transmission systems are equipped with protective covers according to the actual installation location to prevent wear or damage to the power systems and transmission systems caused by the external environment, thereby further ensuring the normal operation of the power systems and transmission systems.

[0040] In summary, the electronic or electrical components, including but not limited to motor I, motor II, electric actuator, and water pump, are existing components that were custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art and are not within the scope of protection of this utility model.

[0041] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A filtration and sedimentation device for wastewater treatment, comprising a housing, an inlet pipe, an outlet pipe, a filtration mechanism, a sedimentation mechanism, a water guide pipe, and a partition plate; characterized in that... The inlet pipe is fixed to the side wall of the tank; the outlet pipe is fixed to the side wall at one end of the tank; the partition plate is fixed inside the tank and divides the tank into two parts: the filtration zone and the sedimentation zone; the water guide pipe is located between a pair of partition plates, and the two ends of the water guide pipe are connected to the filtration zone and the sedimentation zone respectively; the filtration mechanism and the sedimentation mechanism are installed inside the tank of the filtration zone and the sedimentation zone respectively. The filtration mechanism includes a filter screen, a rotating frame, a motor I, a partition, a scraper, an electric push rod, and a collection box. The rotating frame is rotatably connected to the side wall of the housing via bearings. The partition is fixed at the center of the rotating frame. The filter screen is semi-circular, and there is a pair of filter screens, which are respectively installed on the rotating frame on the upper and lower sides of the partition. The motor I is fixed to the outer side wall of the housing, and the output end of the motor I is connected to one end of the rotating frame. The end of the rotating frame away from the motor I has a discharge port. There is a pair of scrapers, which are located on the upper and lower sides of the partition. The electric push rod is fixed to the rotating frame, and the output shaft of the electric push rod is connected to the scraper. The collection box is fixed to the outer side wall of the housing, and the collection box corresponds to the discharge port. The water pipe is equipped with a water pump and a baffle cylinder; the baffle cylinder is equipped with a baffle fan inside, which is rotatably connected to the side wall of the baffle cylinder, and a drug inlet pipe is provided on the side wall of the baffle cylinder near the bottom.

2. The filtration and sedimentation device for wastewater treatment according to claim 1, characterized in that... The vibration mechanism includes motor II, cam, and spring; the partition plate has mounting grooves, and both ends of the filter screen are installed inside the mounting grooves; motor II is fixed to the top of the housing, and the output end of motor II has a cam, which is located above the filter screen; the side wall of the rotating frame has a guide groove, the guide plate is fixed to the filter screen, and one end of the guide plate is movably connected in the guide groove; the spring is located inside the guide groove, and the spring is connected between the rotating frame and the guide plate, and a damping block is provided at the connection between the spring and the rotating frame.

3. A filtration and sedimentation device for wastewater treatment according to claim 1, characterized in that... The side wall of the housing is equipped with a support plate, which is semi-circular and located below the rotating frame. The support plate is in contact with the filter screen below the partition.

4. A filtration and sedimentation device for wastewater treatment according to claim 1, characterized in that... The water inlet pipe is fixed to the bottom of the collection box, with one end passing through the rotating frame; the water inlet of the water inlet pipe is located below the partition.

5. A filtration and sedimentation device for wastewater treatment according to claim 1, characterized in that... The sedimentation mechanism includes sedimentation cylinder I, guide plates, a drain pipe, and sedimentation cylinder II. Sedimentation cylinder I is fixed near the top of the tank and is connected to the water pipe. Several guide plates are provided and evenly fixed inside sedimentation cylinder I. Sedimentation cylinder II is located below sedimentation cylinder I and is fixed at the bottom of the tank. Sedimentation cylinder II is connected to the outlet pipe. Sedimentation hoppers are provided at the bottom of both sedimentation cylinder I and sedimentation cylinder II, and the drain pipe is connected to the bottom of the sedimentation hoppers.

6. A filtration and sedimentation device for wastewater treatment according to claim 5, characterized in that... Several guide plates are provided and arranged at an angle inside the sedimentation cylinder I; the guide plates are arranged in a stepped manner downwards along the direction from the water guide pipe to the drainage trough.

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