Rotary drum centrifugal microfilter for sewage filtration
By using a water-impact impeller to drive the drum to rotate and combining it with a water level sensor to automatically start the water pump for backwashing, the problem of power consumption and inconvenient cleaning of existing sewage filters is solved, achieving energy-saving and automated cleaning effects for sewage filtration.
Patent Information
- Application Number
- CN202520197292.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-08
AI Technical Summary
Existing wastewater filters are power-consuming and lack automated cleaning functions, resulting in low wastewater filtration efficiency and water pollution.
The system uses a water-impact impeller to drive the drum rotation, and a water level sensor automatically starts the water pump for backwashing. High-pressure water is used to clean impurities on the drum, achieving automatic cleaning without motor drive.
It achieves energy-saving operation and automated cleaning of wastewater filtration, improves filtration efficiency, and prevents water pollution.
Smart Images

Figure CN223846424U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to filter machine technical field, and specifically relates to a kind of drum centrifugal microfilter for sewage filtration. BACKGROUND
[0002] After long time fish culture in sewage, various garbage impurities are produced, if not cleaned in time, on one hand, the space in sewage is squeezed, on the other hand, water quality is polluted, affecting fish growth. The roller of sewage filter in prior art includes two kinds of rotating type and fixed type, rotating type needs motor to drive, consumes power, and is not energy-saving. SUMMARY
[0003] The utility model aims at overcoming above-mentioned shortcoming and providing a kind of water impact impeller rotation of inlet pipe, impeller drives roller rotation, energy-saving, automatic starting for sewage filtration drum centrifugal microfilter.
[0004] A kind of drum centrifugal microfilter for sewage filtration of the utility model, including rotating mechanism, spray head, water spray pipe, frame, wherein;Frame middle part is equipped with rotating mechanism, upper portion is equipped with water spray pipe, and spray head is installed on water spray pipe.
[0005] The rotating mechanism is composed of drum, impeller, bearing, inlet pipe, sewage collecting tank, sewage pipe and water level sensor, the impeller is installed at one end in the drum, the inlet pipe and the sewage pipe are connected by bearing at both ends of the drum, the inlet pipe is aligned with the impeller at one end, the sewage collecting tank is installed on the sewage pipe, and the water level sensor is installed at the lower end of the sewage pipe.
[0006] A plurality of spray heads are installed on the water spray pipe.
[0007] The drum and the impeller can rotate on the inlet pipe and the sewage pipe.
[0008] The circumference of the drum is meshed.
[0009] The water spray pipe is connected with the water pump, and the water pump is connected with the water level sensor by wire.
[0010] Compared with the prior art, this utility model has obvious beneficial effects. As can be seen from the above technical solution: a rotating mechanism is installed in the middle of the frame, a water spray pipe is installed at the top, a nozzle is installed on the water spray pipe, an impeller is installed at one end of the drum, and the two ends of the drum are connected to the water inlet pipe and the sewage discharge pipe respectively through bearings. One end of the water inlet pipe is aligned with the impeller, a sewage collection trough is installed on the sewage discharge pipe, and a water level sensor is installed at the lower end of the sewage discharge pipe. When debris and impurities clog the mesh openings of the drum, the water level rises, triggering a water level sensor. The sensor then signals the water pump to start, pumping high-pressure water that sprays through a spray pipe from several nozzles. This automatically starts and stops the backwashing of the mesh drum. When wastewater enters from the other end of the inlet pipe, it flows out from the other end, impacting the impeller and causing it to rotate. The impeller then drives the drum to rotate. The water sprayed from the nozzles cleans the mesh drum, washing away various debris and impurities that have accumulated on it into a collection trough. The debris and impurities then flow out from the bottom of the collection trough through a drain pipe, filtering the wastewater entering from the inlet pipe. This system eliminates the need for a motor, achieving energy savings. In summary, this invention uses water from the inlet pipe to impact the impeller, which in turn drives the drum, resulting in energy savings and automatic start and stop of the backwashing of the mesh drum. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the rotating mechanism of this utility model;
[0013] Figure 3 yes Figure 2 Sectional view of AA;
[0014] Figure 4 yes Figure 2 Sectional view of BB;
[0015] Figure 5 Diagram showing the usage status of this utility model.
[0016] Markings in the figure
[0017] 1. Rotating mechanism, 2. Nozzle, 3. Spray pipe, 4. Water pump, 5. Frame, 11. Roller, 12. Impeller, 13. Bearing, 14. Inlet pipe, 15. Sludge collection tank, 16. Sludge discharge pipe, 17. Water level sensor, 18. Wire, 19. Outlet. Detailed Implementation
[0018] The following detailed description, in conjunction with the accompanying drawings and preferred embodiments, describes the specific implementation methods, structure, features, and effects of this utility model.
[0019] The purpose of this utility model and the solution to its main technical problem are achieved by the following technical solution:
[0020] The utility model discloses a kind of rotary drum centrifugal microfilter for sewage filtration, including rotating mechanism 1, spray head 2, water spray pipe 3, water pump 4, frame 5, wherein;Frame 5 middle part is equipped with rotating mechanism 1, upper portion is equipped with water spray pipe 3, and spray head 2 is installed on water spray pipe 3, and rotating mechanism 1 is composed of drum 11, impeller 12, bearing 13, water inlet pipe 14, sewage collecting tank 15, sewage pipe 16, water level sensor 17, and impeller 12 is installed in one end of drum 11, and drum 11 both ends are connected water inlet pipe 14, sewage pipe 16 respectively by bearing 13, and water inlet pipe 14 one end head is aligned impeller 12, and sewage collecting tank 15 is installed on sewage pipe 16, and water level sensor 17 is installed on the lower end of sewage pipe 16, and a plurality of spray head 2 is installed on water spray pipe 3, and drum 11, impeller 12 can rotate on water inlet pipe 14, sewage pipe 16, and the circumference of drum 11 is meshed, and water spray pipe 3 is connected water pump 4, and water pump 4 is connected water level sensor 17 with wire 18.
[0021] When using;Referring to Figures 1-5 Sewage enters from the other end of water inlet pipe 14, and when flowing out from one end of water inlet pipe 14, it impacts impeller 12, so that impeller 12 rotates, and impeller 12 drives drum 11 to rotate, and clean water flows out of the drum from the meshed filter screen drum, when the garbage and impurities in drum 11 block the meshed filter screen holes of drum 11, the water level in drum 11 rises to trigger water level sensor 17, water level sensor 17 sends a signal to open the switch of water pump 4, and starts water pump 4, water pump 4 pumps water, high-pressure water is sprayed out from a plurality of spray head 2 through water spray pipe 3, the water sprayed out from a plurality of spray head 2 passes through meshed filter screen drum 11, and various garbage and impurities adhered to meshed filter screen drum 11 are washed away into sewage collecting tank 15, and the garbage and impurities flow out from the bottom of sewage collecting tank 15 along sewage pipe 16, sewage entering from water inlet pipe 14 is filtered, and clean water after filtration is discharged from water outlet 19.
[0022] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, any simple modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiment still belongs to the range of the technical scheme of the utility model.
Claims
1. A drum centrifugal microfilter for sewage filtration, comprising a rotating mechanism (1), a nozzle (2), a water spraying pipe (3), a frame (5), characterized in that; The frame (5) is provided with a rotating mechanism (1) in the middle and a water spraying pipe (3) in the upper part, and the water spraying pipe (3) is provided with a nozzle (2).
2. A rotary drum centrifugal microfilter for filtering sewage water as claimed in claim 1, wherein; The rotating mechanism (1) is composed of a roller (11), an impeller (12), a bearing (13), a water inlet pipe (14), a sewage collecting tank (15), a sewage discharge pipe (16) and a water level sensor (17), the roller (11) is provided with the impeller (12) at one end, the roller (11) is connected with the water inlet pipe (14) and the sewage discharge pipe (16) through the bearing (13) at both ends, the water inlet pipe (14) is aligned with the impeller (12) at one end, the sewage discharge pipe (16) is provided with the sewage collecting tank (15), and the sewage discharge pipe (16) is provided with the water level sensor (17) at the lower end.
3. A rotary drum centrifugal microfilter for filtering sewage water as claimed in claim 1 wherein; The water spraying pipe (3) is provided with a plurality of nozzles (2).
4. A rotary drum centrifugal microfilter for filtering sewage water as claimed in claim 2 wherein; The roller (11) and the impeller (12) can rotate on the water inlet pipe (14) and the sewage discharge pipe (16).
5. A rotary drum centrifugal microfilter for filtering sewage water as claimed in claim 2 wherein; The circumference of the roller (11) is meshed.
6. A rotary drum centrifugal microfilter for filtering sewage water as claimed in claim 1 wherein; The water spraying pipe (3) is connected with a water pump (4), and the water pump (4) is connected with the water level sensor (17) through a wire (18).