Sewage multi-stage filtering equipment

Abstract

The utility model relates to the technical field of filtering equipment, in particular to sewage multi-stage filtering equipment which comprises a settling pond, a plurality of supporting frames are distributed and fixed at the position of a port of the settling pond, an annular plate is fixed at the central positions of the supporting frames, and a bearing is fixed at the central position of the annular plate in a penetrating manner. A central pipe is arranged on the inner ring wall of the bearing in an interference fit mode, a plurality of connecting rods are fixed to the lower end of the outer wall of the central pipe, and a stirring frame is fixed to the lower ends of the connecting rods. According to the scheme, the linkage gear is driven by the motor to drive the central pipe to rotate, so that the stirring frame in the sedimentation tank simultaneously realizes rapid mixing of a coagulant and sewage and scraping of sediments at the bottom of the tank, and the special bending design of the stirring frame not only can enhance the turbulent flow effect during stirring, but also can be attached to the tank wall and the tank bottom to scrape attachments; and in combination with intermittent gas disturbance of the aeration pipe, the water flow direction is further broken, so that the coagulant is dispersed more uniformly, and the precipitation time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter equipment technical field especially relates to a sewage multistage filter equipment. BACKGROUND

[0002] With the continuous growth of global population and the acceleration of industrialization process, water resource shortage and water pollution problems are becoming increasingly serious. Sewage discharge not only causes serious pollution to the environment, but also threatens human health and ecological balance. Therefore, sewage treatment and reuse have become one of the important means to solve the water resource crisis. As a key link in sewage treatment, the importance of sewage filtration is self-evident.

[0003] Sewage filtration refers to the removal of suspended particles, organic matter, pathogenic microorganisms and other harmful substances in sewage through physical, chemical or biological methods to achieve the purpose of purifying water quality. The filtration process can effectively reduce the turbidity, color and pollutant concentration of sewage, and improve the transparency and safety of water. For example, the prior art Chinese patent publication "CN217972852U" provides a multistage filter equipment for sewage treatment, which comprises a tank body, a top cover is arranged on the upper wall of the tank body, a water inlet pipe is arranged at the center of the top cover, a water outlet pipe is arranged at the bottom of the tank body, a connecting sleeve is arranged on the lower wall of the tank body, a garbage can is threadedly connected to the outer side of the connecting sleeve, and water outlet holes are arranged on the side wall and the lower wall of the garbage can. The utility model relates to the technical field of sewage treatment, and the device has compact structure. The garbage can is used to collect and coarsely filter the garbage in the sewage, and the fine filter assembly in the lower filter cartridge is used to perform secondary fine filtration on the sewage to improve the filtration effect. At the same time, the dosing assembly is arranged to deodorize the sewage, thereby improving the sewage treatment effect. The garbage can and the filter cartridge are detachably arranged in the tank body, which is convenient for cleaning and replacement, and brings convenience to the use of people.

[0004] At present, the sewage filtration link includes multiple treatment processes. Coagulation and sedimentation and layered filtration after sedimentation are one of the key steps. Coagulant is added to the sewage tank to make fine suspended particles aggregate into larger flocs, which is convenient for sedimentation. However, due to the large area of the sewage tank, if the coagulant is not dispersed after being added, local aggregation and coagulation may easily occur. The areas that are not dispersed are still in the original sewage state. Some sewage tanks use single vortex stirring structure for auxiliary dispersion. However, single-direction stirring can hardly make the coagulant completely contact with the sewage, which may still cause poor sedimentation effect after coagulation. SUMMARY

[0005] The utility model aims at solving the above-mentioned shortcomings in the prior art and provides a sewage multistage filter equipment.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model discloses a sewage multistage filtering equipment, including the sedimentation tank, the port position distribution fixed of sedimentation tank is with a plurality of support frame, the central position of a plurality of support frame is fixed with ring plate, the central position of ring plate is fixed with bearing and passes through, the inner ring wall of bearing is provided with the center tube of interference fit,

[0008] The outer wall lower end of center tube is fixed with a plurality of connecting rods, and the lower end of the plurality of connecting rods is fixed with a stirring frame.

[0009] The outer wall of the center tube is fixedly sleeved with a linkage gear, the upper end of the ring plate is fixed with a motor through a support, the motor is internally provided with a rotating shaft for driving, the end of the rotating shaft is fixedly installed with a driving gear, and the driving gear and the linkage gear are meshed with each other.

[0010] In detail, the inside of the center tube is provided with an aeration pipe, the aeration pipe is of L-shaped structure, a plurality of aeration holes penetrating the inside of the aeration pipe are formed in the lower end of the aeration pipe, and the lower end port position of the aeration pipe is a closed surface.

[0011] In detail, the upper end of the ring plate is fixedly installed with an air pump, and the air outlet end of the air pump is flange-fixed with the horizontal port position of the aeration pipe.

[0012] In detail, the lower end of one side of the sedimentation tank is fixedly penetrated with a waste discharge interface, a valve is installed on the surface of the waste discharge interface, and the valve core of the valve is embeddedly fixed in the inside of the waste discharge interface.

[0013] In detail, the end of the sedimentation tank away from the waste discharge interface is fixedly installed with a hydraulic cylinder through a support, the inside of the hydraulic cylinder is provided with a piston rod for telescopic extension, and the end of the piston rod is fixedly installed with a lifting plate.

[0014] In detail, the upper end of the lifting plate is fixedly installed with a water pump, the upper end of the water pump is provided with a drainage interface, and the side of the water pump is provided with a water inlet interface.

[0015] In detail, the end flange of the water inlet interface is installed with a water suction pipe, the lower end of the water suction pipe is installed with a filter cartridge, and a plurality of filter holes penetrating the inside of the filter cartridge are formed in the surface of the filter cartridge.

[0016] In detail, the end of the filter cartridge close to the water suction pipe is provided with external threads, the inner wall of the port of the water suction pipe is provided with internal threads, and the internal threads and the external threads are threadedly connected with each other.

[0017] The design scheme disclosed by the utility model has the beneficial effects that, in the application process,

[0018] 1、This scheme rotates the center tube by motor driving linkage gear, so that the mixing frame realizes the rapid mixing of coagulant and sewage and the cleaning and scraping of the sediment at the bottom of the sedimentation tank, the special bending design of the mixing frame can enhance the turbulent effect during mixing, and can scrape the adhering matters on the tank wall and the tank bottom, significantly improves the coagulation reaction efficiency and the convenience of later maintenance, in combination with the intermittent gas disturbance of the aeration pipe, further breaks the water flow direction, so that the coagulant is more evenly dispersed, and the sedimentation time is shortened;

[0019] 2、The pumping pipe can flexibly adjust the pumping height with the lifting of the hydraulic cylinder, always matches the upper clear water layer, and the hydraulic cylinder and the water pump work cooperatively to realize the accurate pumping of the layered water, and the degree of automation is high, and manual intervention is not needed for water level change. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure front view schematic of the utility model;

[0021] Figure 2 It is the overall structure side view schematic of the utility model;

[0022] Figure 3 It is the mixing frame overhead distribution schematic of the utility model;

[0023] Figure 4 It is the A place enlarged schematic of the utility model;

[0024] Figure 5 It is the filter cartridge and pumping pipe disassembly schematic of the utility model.

[0025] In the drawing: 1, sedimentation tank; 11, support frame; 12, annular plate; 13, bearing; 14, center tube; 15, connecting rod; 16, mixing frame; 17, linkage gear; 18, motor; 19, driving gear; 2, aeration pipe; 21, aeration hole; 22, air pump; 3, waste discharge interface; 31, valve; 4, hydraulic cylinder; 41, lifting plate; 42, water pump; 43, drainage interface; 44, water inlet interface; 45, pumping pipe; 46, filter cartridge; 47, filter hole; 4001, external thread; 4002, internal thread. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0027] Refer to Figures 1-5The utility model provides a sewage multistage filtering equipment, including sedimentation tank 1, the port position distribution of sedimentation tank 1 is fixed with a plurality of support frame 11, the number of support frame 11 is three, and one end of support frame 11 is fixed to the port position of sedimentation tank 1 through screw, the center position of a plurality of support frame 11 is fixed with annular plate 12, and annular plate 12 mainly plays the bearing effect of the object in the center position, annular plate 12 is welded and fixed with any one support frame 11 away from the end of the port of sedimentation tank 1, the center position of annular plate 12 is fixed with bearing 13, and the inner ring wall of bearing 13 is provided with center tube 14 with interference fit, and center tube 14 can rotate based on bearing 13, so that the stable linkage of stirring frame 16 can be guaranteed;

[0028] The lower end of the outer wall of center tube 14 is fixed with a plurality of connecting rods 15, the lower end of the plurality of connecting rods 15 is fixed with a stirring frame 16, the stirring frame 16 is a cross structure, the end of the stirring frame 16 away from the connecting rod 15 is bent upward at right angles, the lower end of the stirring frame 16 is arranged in close contact with the inner bottom end of the sedimentation tank 1, the right angle bending position of the stirring frame 16 is arranged in sliding contact with the inner wall of the sedimentation tank 1, the stirring frame 16 can be used as a stirring structure for improving the mixing effect of coagulant and sewage, and can also play a scraping effect when discharging waste and cleaning the attachments accumulated at the bottom of the sedimentation tank 1, realizing the dual function of the sewage sedimentation process;

[0029] The outer ring wall of the center tube 14 is fixedly sleeved with a linkage gear 17, the upper end of the annular plate 12 is fixed with a motor 18 through a support, the motor 18 is provided with a driving shaft in the inside, the end of the driving shaft is fixedly installed with a driving gear 19, the driving gear 19 and the linkage gear 17 are arranged in meshing with each other, when it is needed to mix the coagulant and the sewage, the power supply of the motor 18 is turned on, so that the driving shaft can be driven, thereby driving the driving gear 19 to rotate and mesh with the linkage gear 17 to rotate, so that the stable rotation of the center tube 14 based on the bearing 13 can be realized, and the stirring frame 16 can be rotated.

[0030] It is further explained that the inside of the center tube 14 is provided with an aeration pipe 2, the aeration pipe 2 is an L-shaped structure, a plurality of aeration holes 21 penetrating the inside of the aeration pipe 2 are formed in the lower end of the aeration pipe 2, the lower end of the aeration pipe 2 is a closed surface, the lower end of the aeration pipe 2 enters the lower position of the inside of the sedimentation tank 1, in order to improve the dispersion contact effect of the coagulant and the sewage, the gas is sprayed through the aeration holes 21 when stirring, so that the coagulant and the sewage can be stirred in the same direction, thereby playing an effect of disturbing the flow direction, and further improving the dispersion contact effect of the coagulant.

[0031] It is further explained that the upper end of the annular plate 12 is fixedly installed with a gas pump 22, the gas outlet end of the gas pump 22 is fixed with the horizontal port position flange of the aeration pipe 2, and the gas pump 22 can provide sufficient gas pressure flow capacity when aeration is carried out.

[0032] It should be further explained that a waste discharge port 3 is fixed through the lower end of one side of the sedimentation tank 1. A valve 31 is installed on the surface of the waste discharge port 3. The valve core of the valve 31 is embedded and fixed inside the waste discharge port 3. The waste discharge port 3 can discharge the remaining sediment after the coagulant and sewage have reacted and the sedimentation has been carried out in layers, and after the clear water in the upper layer has been extracted.

[0033] It should be further noted that a hydraulic cylinder 4 is fixedly installed on the end of the sedimentation tank 1 away from the waste discharge port 3 via a bracket. The hydraulic cylinder 4 has a piston rod for extension and retraction inside, and a lifting plate 41 is fixedly installed at the end of the piston rod. The height of the lifting plate 41 can be adjusted by extending and retracting the piston rod of the hydraulic cylinder 4.

[0034] It should be further explained that a water pump 42 is fixedly installed on the upper end of the lifting plate 41. A drain port 43 is provided on the upper end of the water pump 42, and a water inlet port 44 is provided on one side of the water pump 42. Through the pumping effect of the water pump 42, the upper layer of water can be extracted after stratification.

[0035] It should be further explained that a water inlet 44 is fitted with a water inlet pipe 45 at its end flange, and a filter cartridge 46 is fitted at the lower end of the water inlet pipe 45. The surface of the filter cartridge 46 is provided with several filter holes 47 that penetrate through it. The filter holes 47 can prevent large particles of impurities from being sucked into the water inlet pipe 45 when the upper layer of water after stratification is extracted. The water inlet pipe 45 can move up and down with the lifting plate 41 and can continuously adapt to the position of the upper layer of water. At the same time, it can prevent it from excessively contacting the sedimentation area.

[0036] It should be further noted that the filter cartridge 46 is provided with an external thread 4001 at the end near the water pumping pipe 45, and an internal thread 4002 is provided on the inner wall of the port of the water pumping pipe 45. The internal thread 4002 and the external thread 4001 are threadedly connected to each other. When the filter cartridge 46 needs to be cleaned or replaced regularly, the external thread 4001 and the internal thread 4002 can be separated by rotating the filter cartridge 46, which can realize the quick disassembly of the filter cartridge 46 and the water pumping pipe 45.

[0037] Working mode: the motor 18 drives the gear transmission assembly (the driving gear 19 meshes with the linkage gear 17) to rotate the central pipe 14 and the stirring frame 16, so that the sewage and the coagulant are forced to mix, the stirring frame 16 adopts a cross structure, the bent end thereof is in sliding contact with the inner wall of the sedimentation tank 1, so that the stirring range covers the whole tank bottom, and the deposition of the sediment is prevented, meanwhile, the aeration pipe 2 is supplied with air by the air pump 22, and the micro air bubbles are released from the aeration holes 21 to form a turbulent flow in the sewage, so that the fluid direction is changed and the dispersion effect of the coagulant is enhanced, the cooperation of the stirring and the aeration significantly improves the mixing efficiency, so that the coagulant is quickly combined with the suspended matter to form alum flowers, and conditions for subsequent sedimentation are created, in addition, the rotation of the stirring frame 16 can also scrape the adherents on the tank bottom in the waste discharge stage, so that the functions of mixing and cleaning are realized;

[0038] After the sewage is mixed and reacted, the flocculation with a larger specific gravity sinks to the tank bottom, and the clear water is located in the upper layer. The hydraulic cylinder 4 adjusts the height of the lifting plate 41 through the piston rod, drives the water suction pipe 45 and the filter cylinder 46 to move up and down, and ensures that the filter cylinder 46 is always in the clear water layer, when the water pump 42 sucks the clear water in the upper layer through the water inlet interface 44, the filter holes 47 on the surface of the filter cylinder 46 can block the residual particles from entering the water suction pipe 45, so as to avoid blockage or secondary pollution, and the valve 31 of the waste discharge interface 3 is opened after the sedimentation is completed, so that the bottom silt is discharged.

[0039] The filter cylinder 46 is connected with the inner thread 4002 of the water suction pipe 45 through the outer thread 4001, and can be disassembled by screwing, so as to facilitate cleaning of the blockage of the filter holes 47 or replacement of damaged parts.

[0040] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A multi-stage sewage filtering device comprising a sedimentation tank (1), characterized in that: The port position distribution of the sedimentation tank (1) is fixed with a plurality of support frames (11), the center positions of the plurality of support frames (11) are jointly fixed with an annular plate (12), the center position of the annular plate (12) is fixedly penetrated with a bearing (13), and the inner ring wall of the bearing (13) is provided with a center pipe (14) in interference fit; The outer wall lower end of the center pipe (14) is fixed with a plurality of connecting rods (15), the lower end of the plurality of connecting rods (15) is fixed with a stirring frame (16), the stirring frame (16) is a cross structure, the end of the stirring frame (16) away from the connecting rod (15) is vertically bent upward at right angles, the lower end of the stirring frame (16) is arranged in close contact with the inner bottom end of the sedimentation tank (1), and the right angle bending position of the stirring frame (16) is arranged in sliding contact with the inner wall of the sedimentation tank (1). The outer ring wall of the center pipe (14) is fixedly sleeved with a linkage gear (17), the upper end of the annular plate (12) is fixed with a motor (18) through a support, the inside of the motor (18) is provided with a driving shaft for driving, the end of the driving shaft is fixedly installed with a driving gear (19), and the driving gear (19) and the linkage gear (17) are arranged in meshing with each other.

2. The multi-stage sewage filtering device according to claim 1, characterized in that: The inside of the center pipe (14) is fixedly penetrated with an aeration pipe (2), the aeration pipe (2) is an L-shaped structure, a plurality of aeration holes (21) penetrating the inside of the aeration pipe (2) are formed in the lower end of the aeration pipe (2), and the lower end port position of the aeration pipe (2) is a closed surface.

3. A multi-stage sewage filtering device according to claim 2, characterized in that: The upper end of the annular plate (12) is fixedly installed with an air pump (22), and the air outlet end of the air pump (22) is fixedly flanked to the horizontal port position of the aeration pipe (2).

4. The multi-stage sewage filtering device according to claim 1, characterized in that: The lower end of one side of the sedimentation tank (1) is fixedly penetrated with a waste discharge interface (3), the surface of the waste discharge interface (3) is installed with a valve (31), and the valve core of the valve (31) is embeddedly fixed in the inside of the waste discharge interface (3).

5. The multi-stage sewage filtering device according to claim 1, characterized in that: The end of the sedimentation tank (1) away from the waste discharge interface (3) is fixedly installed with a hydraulic cylinder (4) through a support, the inside of the hydraulic cylinder (4) is provided with a piston rod for telescopic extension, and the end of the piston rod is fixedly installed with a lifting plate (41).

6. A multi-stage sewage filtering device according to claim 5, characterized in that: The upper end of the lifting plate (41) is fixedly installed with a water pump (42), the upper end of the water pump (42) is provided with a water discharge interface (43), and one side of the water pump (42) is provided with a water inlet interface (44).

7. A multi-stage sewage filtering device according to claim 6, characterized in that: The end flange of the water inlet interface (44) is installed with a water suction pipe (45), the lower end of the water suction pipe (45) is installed with a filter cylinder (46), and the surface of the filter cylinder (46) is provided with a plurality of filter holes (47) penetrating the inside thereof.

8. A multi-stage sewage filtering device according to claim 7, characterized in that: The end of the filter cylinder (46) close to the water suction pipe (45) is provided with an external thread (4001), the inner wall of the port of the water suction pipe (45) is provided with an internal thread (4002), and the internal thread (4002) and the external thread (4001) are threadedly connected with each other.

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