Multi-stage filtration and rotary separation pretreatment device for on-line sewage monitoring equipment

Abstract

The utility model discloses a multistage filtration and rotary separation pretreatment device for sewage on-line monitoring equipment, which comprises a support frame filtration device, one side of the support frame is fixedly connected with a rotary separation device, and the middle part of one side of the support frame is fixedly connected with a rapid sedimentation tank. According to the multi-stage filtration and rotary separation pretreatment device for the sewage online monitoring equipment, through the arrangement of the rapid sedimentation tank, the filtration device, the water flow detection tank and the rotary separator, sewage enters the rotary separation device, the separated sewage enters the rapid sedimentation tank, and the water flow detection tank is fixedly connected to one side of the support frame. The settled sewage enters the filtering device, the filtered sewage enters the water flow detection pool for water quality detection, rotary separation and settling are combined, rapid impurity separation can be realized, the sewage after rotary separation enters the rapid settling pool, and the rapid settling pool is specially designed, so that the water flow velocity is slow, and small particles are allowed to settle.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality online detection equipment, in particular to a multi-stage filtration and rotation separation pretreatment device for sewage online monitoring equipment. Background Art

[0002] Water is an essential resource for human survival. With the development of society, the global environment is deteriorating and water pollution is becoming increasingly serious. Therefore, humans are paying more and more attention to protecting water resources, thereby increasing the monitoring of water pollution.

[0003] The online water quality monitor is a device that monitors the contents of COD, ammonia nitrogen, total phosphorus, heavy metals, etc. in water bodies such as industrial wastewater and domestic wastewater. When the online water quality monitor is working, impurities such as sediment and flocs in the water body can easily enter the water quality sampling pipeline of the online water quality monitor, causing the water quality sampling pipeline to be blocked, resulting in the monitor not working properly and increasing the maintenance workload of the system. The traditional water quality pretreatment device is to add a filter at the water pump inlet and adopt a countercurrent sampling method. In actual work, it is found that fine sediment particles and flocs in the water quality will still be drawn into the water quality sampling pipeline, causing blockage and causing the equipment to not work properly. Utility Model Content

[0004] The main purpose of the utility model is to provide a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The filtration unit is connected with the filter screen, and the filtration unit is connected with the filter screen.

[0007] In order to serve as a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment of the utility model, the top of the inner wall of the rotary separation device is fixedly connected with a primary filter screen, and the bottom of the inner wall of the rotary separation device is fixedly connected with a secondary filter screen.

[0008] In order to serve as a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment of the utility model, a first garbage disposal door is provided on one side of the top of the outer surface of the rotary separation device, and a second garbage disposal door is provided on one side of the bottom of the outer surface of the rotary separation device.

[0009] In order to serve as a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment of the utility model, the inner wall of the filter device is fixedly connected with a fine filter mesh, one side of the middle part of the inner wall of the filter device is fixedly connected with a backwash nozzle, the inner wall of the filter device is fixedly connected with a membrane filter, and the bottom end of the automatic valve is fixedly connected with a drain pipe.

[0010] In order to serve as a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment of the utility model, one side of the membrane filter is rotatably connected to a vortexer, and the vortexer is fixedly connected to the fine filter mesh.

[0011] In order to serve as a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment of the utility model, a first sewage pipe is fixedly connected to one side of the outer surface of the filter device, and a second sewage pipe is fixedly connected to one side of the middle part of the outer surface of the filter device.

[0012] In order to serve as a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment of the utility model, the inner bottom wall of the water flow detection tank is fixedly connected with a water flow disturbance fan, and the inner side wall of the water flow detection tank is fixedly connected with a water flow detector.

[0013] In order to serve as a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment of the utility model, a support leg is fixedly connected to one side of the outer surface of the support frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment is provided with a water inlet pipe, a motor, a rotary separation device, a rapid sedimentation tank, an automatic valve, a filter device, a water flow detection tank, a rotary separator, a first transmission pipe, a first outlet pipe, a second transmission pipe and a second outlet pipe. Sewage enters the rotary separation device from the water inlet pipe, the rotary separator separates larger impurities from the sewage, the separated sewage enters the rapid sedimentation tank through the first transmission pipe, the settled sewage enters the filtration device through the first outlet pipe, and the filtered sewage passes through the second The transmission pipe enters the water flow detection pool to detect the water quality. After the detection is completed, the sewage is discharged from the second outlet pipe. The combination of rotary separation and sedimentation can achieve rapid separation of impurities and avoid the delay in monitoring timeliness caused by traditional static methods. The sewage after rotary separation enters the rapid sedimentation tank. The tank is specially designed with a slow water flow rate, allowing smaller particles to settle. An automatic valve is installed at the bottom of the tank, which can automatically remove sediments regularly. Since the rotary separation has processed larger impurities, the standing time can be shortened to less than a few minutes. The short-time standing device will not significantly delay the timeliness of monitoring.

[0016] 2. The multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment is equipped with a fine filter, a backwash nozzle, a membrane filter, a second transmission pipe, a vortexer, a first sewage pipe and a second sewage pipe. After the sewage has been settled in the rapid sedimentation tank, it enters the filtration device from the second transmission pipe. The larger particles are first filtered out by the fine filter, and then the membrane filter can effectively filter out the finer suspended particles, so that the chemical components in the water are not filtered out and the water quality data measured by the sensor is accurate. At the same time, a vortexer is provided between the two nets to accelerate the flow of water and ensure that impurities will not accumulate at one end of the net. The filtration device is provided with a backwash nozzle with an automatic backwashing function to prevent clogging after long-term use, and the membrane filter can adjust the pore size to ensure filtration efficiency.

[0017] 3. This multi-stage filtration and rotary separation pretreatment device for online sewage monitoring equipment can slightly disturb the water flow when the sewage enters the water flow detection tank through the setting of the water flow disturbance fan, ensuring that the water quality is as uniform as possible and avoiding monitoring errors caused by stagnant water flow or excessive stratification. The disturbance device will not destroy suspended matter and chemicals in the water, ensuring that the water quality detected by the sensor is representative. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural schematic diagram of a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment in Example 1 of the present utility model;

[0019] Figure 2This is a structural schematic diagram of a rotary separation device of a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment in Example 1 of the present utility model;

[0020] Figure 3 This is a schematic cross-sectional view of a rotary separation device of a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment in Example 1 of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of a rapid sedimentation tank of a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment in Example 1 of the present utility model;

[0022] Figure 5 This is a schematic cross-sectional view of a filtering device of a multi-stage filtering and rotary separation pretreatment device for sewage online monitoring equipment according to Example 1 of the present utility model;

[0023] Figure 6 This is a schematic diagram of the structure of a water flow disturbance fan of a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment in Example 1 of the present utility model;

[0024] Figure 7 This is a rear structural schematic diagram of a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment in Example 1 of the utility model.

[0025] In the figure: 1. Rotary separation device; 2. Rapid sedimentation tank; 3. Water flow detection tank; 4. Support frame; 5. Support legs; 6. Filter device; 7. Water inlet pipe; 8. First garbage disposal door; 9. Second garbage disposal door; 10. First transmission pipe; 11. Motor; 12. Primary filter screen; 13. Rotary separator; 14. Secondary filter screen; 15. Automatic valve; 16. Drain pipe; 17. First water outlet pipe; 18. First sewage pipe; 19. Second sewage pipe; 20. Second transmission pipe; 21. Fine filter screen; 22. Vortex device; 23. Membrane filter; 24. Backwash nozzle; 25. Water flow detector; 26. Water flow disturbance fan; 27. Second water outlet pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] like Figure 1-7As shown, a multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment includes a support frame 4 and a filtering device 6. A rotary separation device 1 is fixedly connected to one side of the support frame 4. A rapid sedimentation tank 2 is fixedly connected to the middle part of one side of the support frame 4. A water flow detection tank 3 is fixedly connected to the side of the support frame 4 away from the rotary separation device 1. A water inlet pipe 7 is fixedly connected to one side of the outer surface of the rotary separation device 1. A rotary separator 13 is rotatably connected to the inner wall of the rotary separation device 1. A motor 11 is fixedly connected to the top of the rotary separator 13. The bottom wall of the rotating separation device 1 is fixedly connected to a first transmission pipe 10, one end of the first transmission pipe 10 is fixedly connected to the rapid sedimentation tank 2, the bottom of the rapid sedimentation tank 2 is fixedly connected to an automatic valve 15, one side of the outer surface of the rapid sedimentation tank 2 is fixedly connected to a first water outlet pipe 17, the first water outlet pipe 17 is fixedly connected to the filter device 6, one side of the outer surface of the filter device 6 is fixedly connected to a second transmission pipe 20, the second transmission pipe 20 is fixedly connected to the water flow detection tank 3, and one side of the outer surface of the water flow detection tank 3 is fixedly connected to a second water outlet pipe 27.

[0029] During specific use, through the arrangement of the water inlet pipe 7, the motor 11, the rotary separation device 1, the rapid sedimentation tank 2, the automatic valve 15, the filtering device 6, the water flow detection tank 3, the rotary separator 13, the first transmission pipe 10, the first outlet pipe 17, the second transmission pipe 20 and the second outlet pipe 27, the sewage enters the rotary separation device 1 from the water inlet pipe 7, the rotary separator 13 will separate the larger impurities and sewage, the separated sewage enters the rapid sedimentation tank 2 through the first transmission pipe 10, the settled sewage enters the filtering device 6 through the first outlet pipe 17, the filtered sewage then enters the water flow detection tank 3 through the second transmission pipe 20 for water quality testing, and the sewage after testing is discharged from the second outlet pipe 27. The combination of rotary separation and sedimentation can achieve rapid impurity separation and avoid the delay in monitoring timeliness caused by the traditional static method. The sewage after rotary separation enters the rapid sedimentation tank 2. The tank is specially designed with a slow water flow rate, allowing smaller particles to settle. An automatic valve 15 is provided at the bottom of the tank, which can automatically and regularly remove sediment.

[0030] In this embodiment, a primary filter screen 12 is fixedly connected to the top of the inner wall of the rotary separation device 1 , and a secondary filter screen 14 is fixedly connected to the bottom of the inner wall of the rotary separation device 1 .

[0031] During specific use, through the arrangement of the primary filter 12 and the secondary filter 14 , the primary filter 12 can filter out large garbage in the sewage, and the secondary filter 14 can block larger particles, garbage and sediment.

[0032] In this embodiment, a first garbage disposal door 8 is provided on one side of the top of the outer surface of the rotary separation device 1 , and a second garbage disposal door 9 is provided on one side of the bottom of the outer surface of the rotary separation device 1 .

[0033] During specific use, the garbage and impurities separated by the rotary separation device 1 can be collected through the first garbage disposal door 8 and the second garbage disposal door 9 .

[0034] In this embodiment, a fine filter mesh 21 is fixedly connected to the inner wall of the filter device 6, a backwash nozzle 24 is fixedly connected to one side of the middle of the inner wall of the filter device 6, a membrane filter 23 is fixedly connected to the inner wall of the filter device 6, and a drain pipe 16 is fixedly connected to the bottom end of the automatic valve 15.

[0035] During specific use, through the arrangement of the fine filter mesh 21, the backwash nozzle 24 and the membrane filter 23, the sewage after sedimentation in the rapid sedimentation tank 2 enters the filter device 6 from the second transmission pipe 20, first filters out larger particles through the fine filter mesh 21, and then passes through the membrane filter 23 to effectively filter out finer suspended particles, keeping the chemical components in the water from being filtered out, ensuring that the water quality data measured by the sensor is accurate. The filter device 6 is provided with a backwash nozzle 24 with an automatic backwash function to prevent clogging after long-term use, and the membrane filter 23 can adjust the pore size to ensure filtration efficiency.

[0036] In this embodiment, a vortex generator 22 is rotatably connected to one side of the membrane filter 23 , and the vortex generator 22 is fixedly connected to the fine filter 21 .

[0037] During specific use, a vortexer 22 is provided between the fine filter 21 and the membrane filter 23 through the setting of a limiter, which can accelerate the flow of water and ensure that impurities will not accumulate at one end of the mesh.

[0038] In this embodiment, a first sewage pipe 18 is fixedly connected to one side of the outer surface of the filter device 6 , and a second sewage pipe 19 is fixedly connected to one side of the middle portion of the outer surface of the filter device 6 .

[0039] During specific use, the first sewage pipe 18 and the second sewage pipe 19 are provided to discharge impurities from the filter screen cleaned by the backwash nozzle 24 .

[0040] In this embodiment, a water flow disturbance fan 26 is fixedly connected to the inner bottom wall of the water flow detection pool 3 , and a water flow detector 25 is fixedly connected to the inner side wall of the water flow detection pool 3 .

[0041] During specific use, through the setting of the water flow disturbance fan 26, when the sewage enters the water flow detection tank 3, the water flow disturbance fan 26 can slightly disturb the water flow to ensure that the water quality is as uniform as possible and avoid monitoring errors caused by stagnant water flow or excessive stratification.

[0042] In this embodiment, a support leg 5 is fixedly connected to one side of the outer surface of the support frame 4 .

[0043] During specific use, the stability of the entire device can be ensured by arranging the support frame 4 and the legs 5.

[0044] Working principle: Sewage enters the rotary separation device 1 from the water inlet pipe 7, the first-level filter 12 can filter out large garbage in the sewage, the second-level filter 14 can block larger particles, garbage and sediment, and the rotary separator 13 will separate larger impurities from sewage. The separated sewage enters the rapid sedimentation tank 2 through the first transmission pipe 10, and the settled sewage enters the filter device 6 through the first outlet pipe 17. The combination of rotary separation and sedimentation can achieve rapid impurity separation. The sewage after rotary separation enters the rapid sedimentation tank 2. The tank is specially designed with a slow water flow rate to allow smaller particles to settle. An automatic valve 15 is provided at the bottom of the tank to automatically remove sediments regularly and quickly settle. After sedimentation in the settling tank 2 is completed, the sewage enters the filter device 6 from the second transmission pipe 20, first filters out larger particles through the fine filter mesh 21, and then passes through the membrane filter 23 to effectively filter out finer suspended particles. A vortexer 22 is provided between the fine filter mesh 21 and the membrane filter 23, which can accelerate the flow of water and ensure that impurities will not accumulate at one end of the mesh. The filter device 6 is provided with a backwash nozzle 24 with an automatic backwash function to prevent clogging after long-term use, and the membrane filter 23 can adjust the pore size to ensure filtration efficiency. After filtration, the sewage enters the water flow detection tank 3 through the second transmission pipe 20 for water quality detection, and the sewage after detection is discharged from the second outlet pipe 27.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment, comprising a support frame (4) and a filtering device (6), characterized in that: One side of the support frame (4) is fixedly connected to a rotary separation device (1), the middle part of one side of the support frame (4) is fixedly connected to a rapid sedimentation tank (2), the side of the support frame (4) away from the rotary separation device (1) is fixedly connected to a water flow detection tank (3), one side of the outer surface of the rotary separation device (1) is fixedly connected to a water inlet pipe (7), the inner wall of the rotary separation device (1) is rotatably connected to a rotary separator (13), the top end of the rotary separator (13) is fixedly connected to a motor (11), and the bottom wall of the rotary separation device (1) is fixedly connected to a first transmission pipe (10 ), one end of the first transmission pipe (10) is fixedly connected to the rapid sedimentation tank (2), the bottom of the rapid sedimentation tank (2) is fixedly connected to an automatic valve (15), one side of the outer surface of the rapid sedimentation tank (2) is fixedly connected to a first outlet pipe (17), the first outlet pipe (17) is fixedly connected to the filter device (6), one side of the outer surface of the filter device (6) is fixedly connected to a second transmission pipe (20), the second transmission pipe (20) is fixedly connected to the water flow detection tank (3), and one side of the outer surface of the water flow detection tank (3) is fixedly connected to a second outlet pipe (27).

2. The multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment according to claim 1 is characterized by: A primary filter screen (12) is fixedly connected to the top of the inner wall of the rotary separation device (1), and a secondary filter screen (14) is fixedly connected to the bottom of the inner wall of the rotary separation device (1).

3. The multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment according to claim 1 is characterized in that: A first garbage disposal door (8) is provided on one side of the top of the outer surface of the rotating separation device (1), and a second garbage disposal door (9) is provided on one side of the bottom of the outer surface of the rotating separation device (1).

4. The multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment according to claim 1 is characterized in that: A fine filter screen (21) is fixedly connected to the inner wall of the filter device (6), a backwash nozzle (24) is fixedly connected to one side of the middle portion of the inner wall of the filter device (6), a membrane filter (23) is fixedly connected to the inner wall of the filter device (6), and a drain pipe (16) is fixedly connected to the bottom end of the automatic valve (15).

5. The multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment according to claim 4, characterized in that: One side of the membrane filter (23) is rotatably connected to a vortexer (22), and the vortexer (22) is fixedly connected to the fine filter (21).

6. The multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment according to claim 1 is characterized in that: A first sewage pipe (18) is fixedly connected to one side of the outer surface of the filter device (6), and a second sewage pipe (19) is fixedly connected to one side of the middle portion of the outer surface of the filter device (6).

7. The multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment according to claim 1 is characterized in that: The inner bottom wall of the water flow detection pool (3) is fixedly connected to a water flow disturbance fan (26), and the inner side wall of the water flow detection pool (3) is fixedly connected to a water flow detector (25).

8. The multi-stage filtration and rotary separation pretreatment device for sewage online monitoring equipment according to claim 1, characterized in that: A support leg (5) is fixedly connected to one side of the outer surface of the support frame (4).

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