Device for monitoring settling performance of activated sludge in situ

Abstract

The utility model relates to the field of activated sludge settleability detection, in particular to a device for monitoring activated sludge settleability in situ, which comprises a mounting table, an ultrasonic time-domain reflectometer arranged on one side of the upper surface of the mounting table, a fixed table arranged on one side of the ultrasonic time-domain reflectometer, and a sampling barrel arranged on the fixed table. A lifting mechanism and a liquid inlet pipe are arranged on the sampling barrel, the lifting mechanism is installed on the fixing table through a fixing part, the end, far away from the end stretching into the sampling barrel, of the liquid inlet pipe is connected and installed to a water pump, the water pump is arranged on the upper surface of the installation table, and the arranged lifting mechanism drives the stirring disc to ascend and descend vertically, so that the stirring disc can stir sludge vertically; the bottom of the sampling barrel is provided with the liquid discharging pipeline instead of a stirring device arranged at the bottom, the activated sludge sample is stirred, and the activated sludge sample in the sampling barrel can be quickly discharged through the liquid discharging pipeline after the bottom of the sampling barrel is not provided with the stirring device, so that the discharging efficiency of the activated sludge sample is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of activated sludge settling performance detection, in particular to a device for in-situ monitoring of activated sludge settling performance. Background Art

[0002] The activated sludge method is a relatively traditional and important method for biological treatment of urban sewage. The production environment conditions of the sewage treatment process are changeable and harsh, and its treatment effect is easily disturbed and affected by the external environment, resulting in the sewage treatment not being carried out normally. For example, the sedimentation and concentration performance of activated sludge will be affected by the changes in sewage composition in the rainy season. This is mainly caused by the changes in the ionic strength of the sludge. Once the sedimentation and concentration performance of the sludge in the river water changes, it may lead to changes in the mud layer in the river water and changes in the concentration of the bottom return sludge. The final result will affect the SS value of the effluent and the changes in the biomass of the aeration tank. Therefore, the sedimentation and concentration performance of activated sludge is a very important comprehensive indicator of the physical state of the activated sludge.

[0003] Among them, the invention patent with authorization announcement number CN113189197A discloses a device and detection method for in-situ monitoring of activated sludge settling performance. Although it uses an ultrasonic time-domain reflectometer to monitor the density and thickness changes of the medium layer during the sludge settling process, it can accurately obtain the density and thickness information of the sludge settling process at different time points, and the activated sludge samples can be freely pumped in and out by a peristaltic pump to quickly measure different samples, but the peristaltic pump cannot quickly pump out a large amount of activated sludge samples due to its principle characteristics, so that its extraction efficiency is not high. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a device for in-situ monitoring of the settling performance of activated sludge.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An in-situ monitoring device for activated sludge settling performance comprises a mounting platform, an ultrasonic time domain reflectometer is arranged on one side of the upper surface of the mounting platform, a fixing platform is arranged on one side of the ultrasonic time domain reflectometer, and a sampling tube is placed on the fixing platform;

[0007] The sampling tube is provided with a lifting mechanism and a liquid inlet pipe. The lifting mechanism is installed on a fixed platform by a fixing component. The end of the liquid inlet pipe away from the sampling tube is connected and installed on a water pump. The water pump is arranged on the upper surface of the mounting platform.

[0008] In addition, a preferred structure is that the sampling tube includes an upper cover arranged on the top surface of the tube body, an ultrasonic probe is arranged in the middle of the upper cover, a drainage pipe is arranged at the bottom of the sampling tube body, and the sampling tube body is vertically installed on a fixed platform.

[0009] In addition, a preferred structure is that a plurality of bolt holes for installing a lifting mechanism are opened on one side of the upper end surface of the fixed platform, the fixing components are engaged with the bolt holes, and an opening is opened in the middle of the fixed platform body, and the opening diameter is larger than the diameter of the drainage pipe.

[0010] In addition, a preferred structure is that the lifting mechanism includes a connecting column, a fixing plate is provided at the bottom end of the connecting column, a fixing component can be rotatably installed in the mounting hole on the fixing plate, and an electric telescopic rod is provided at the upper end of the connecting column.

[0011] In addition, a preferred structure is that the telescopic rod portion at the bottom of the electric telescopic rod extends through the upper cover into the body of the sampling tube, and a flip plate is installed at the bottom end of the telescopic rod portion of the electric telescopic rod.

[0012] In addition, a preferred structure is that a first through hole is formed through the middle of the flip disk, and a plurality of second through holes are formed through the flip disk outside the first through hole.

[0013] The beneficial effects of the utility model are as follows: the lifting mechanism is provided to drive the flip plate to move up and down, so that the flip plate can flip the sludge up and down, replacing some stirring devices arranged at the bottom, and playing the role of stirring the activated sludge sample. After the stirring device is removed from the bottom of the sampling cylinder, the activated sludge sample in the sampling cylinder can be quickly discharged through the installed drainage pipe, thereby improving the discharge efficiency of the activated sludge sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the device for in-situ monitoring of activated sludge settling performance;

[0015] Figure 2 It is a structural schematic diagram of the separation of the sampling tube and the fixing platform;

[0016] Figure 3 It is a schematic diagram of the structure inside the sampling tube;

[0017] Figure 4 It is a structural schematic diagram of the lifting mechanism and the flip plate.

[0018] In the figure: 1 mounting platform, 2 ultrasonic time domain reflectometer, 3 fixing platform, 31 bolt hole, 32 opening, 4 sampling tube, 41 upper cover, 42 drainage pipe, 5 lifting mechanism, 51 connecting column, 52 fixing plate, 53 electric telescopic rod, 6 ultrasonic probe, 7 liquid inlet pipe, 8 water pump, 9 flip plate, 91 first through hole, 92 second through hole, 10 fixing component. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-4 , a device for in-situ monitoring of activated sludge settling performance, comprising a mounting platform 1, an ultrasonic time domain reflectometer 2 is arranged on one side of the upper surface of the mounting platform 1, a fixing platform 3 is arranged on one side of the ultrasonic time domain reflectometer 2, and a sampling tube 4 is placed on the fixing platform 3;

[0021] The sampling tube 4 is provided with a lifting mechanism 5 and a liquid inlet pipe 7. The lifting mechanism 5 is installed on the fixed platform 3 by a fixing component 10. The end of the liquid inlet pipe 7 away from the sampling tube 4 is connected and installed on a water pump 8. The water pump 8 is arranged on the upper surface of the mounting platform 1.

[0022] Among them, the sampling cylinder 4 includes an upper cover 41 covered on the top surface of the cylinder body, an ultrasonic probe 6 is arranged in the middle of the upper cover 41, a drainage pipe 42 is arranged at the bottom of the cylinder body of the sampling cylinder 4, and the cylinder body of the sampling cylinder 4 is vertically installed on the fixed platform 3. The drainage pipe 42 facilitates the rapid discharge of a large amount of activated sludge samples in the sampling cylinder 4.

[0023] In addition, a plurality of bolt holes 31 for installing the lifting mechanism 5 are provided on one side of the upper surface of the fixed platform 3, and the fixing component 10 is engaged with the bolt hole 31. An opening 32 is provided in the middle of the fixed platform 3, and the diameter of the opening 32 is larger than the diameter of the drainage pipe 42, so that the sampling tube 4 can be removed from the fixed platform 3, and the fixed platform 3 lifts up the sampling tube 4, which is convenient for setting a water receiving device at the bottom to collect the discharged activated sludge samples.

[0024] Moreover, the lifting mechanism 5 includes a connecting column 51, a fixing plate 52 is provided at the bottom end of the connecting column 51, and a fixing component 10 can be rotatably installed in the mounting hole on the fixing plate 52. An electric telescopic rod 53 is provided at the upper end of the connecting column 51. The bottom telescopic rod portion of the electric telescopic rod 53 extends through the upper cover 41 to the inside of the sampling tube 4, and a flipping plate 9 is installed at the bottom of the telescopic rod portion of the electric telescopic rod 53. The electric telescopic rod 53 is convenient for driving the flipping plate 9 at the bottom to repeatedly lift up and down, thereby flipping the activated sludge sample, replacing the stirring device set at the bottom in the comparative document.

[0025] At the same time, a first through hole 91 is opened through the middle of the flipping plate 9, and a plurality of second through holes 92 are opened through the flipping plate 9 outside the first through hole 91. The first through hole 91 facilitates the ultrasonic probe 6 to pass through the flipping plate 9 to detect the sedimentation performance of the activated sludge sample. At the same time, the first through hole 91 cooperates with the second through hole 92 to reduce the overall resistance of the flipping plate 9 when it is lifted or lowered.

[0026] In this embodiment, when the activated sludge sample is detected in situ, the device can be used. First, the activated sludge sample is pumped into the sampling tube 4 by the water pump 8. After the activated sludge sample is discharged into the sampling tube 4, the lifting mechanism 5 can be started to completely turn over the activated sludge sample.

[0027] First, the electric telescopic rod 53 is driven to extend and retract the telescopic rod part, thereby raising and lowering the turning plate 9. When the turning plate 9 is raised and lowered, the activated sludge sample in the sampling tube 4 will be completely turned over, so that some sludge sunk to the bottom can be turned over. After turning over for a period of time, the electric telescopic rod 53 can be stopped when the turning plate 9 rises to the top, and then the ultrasonic time domain reflectometer 2 can be started to control the ultrasonic probe 6 to generate an ultrasonic signal, and the ultrasonic signal of the sludge in the sample stagnation area is monitored for 30 minutes through the first through hole 91, and then the sedimentation performance of the activated sludge sample is analyzed based on the obtained data.

[0028] After the test is completed, the activated sludge sample in the sampling tube 4 is quickly discharged directly through the valve on the discharge pipe 42, and a collection object can be set at the bottom to collect the activated sludge sample. Then the upper cover 41 can be removed, so that the sampling tube 4 can be cleaned and the next test can be carried out. The sampling tube 4 is also easy to remove from the fixed platform 3. It is only necessary to remove the fixing component 10 on the fixing plate 52 of the lifting mechanism 5 and remove the liquid inlet pipe 7 from the water pump 8, so that the sampling tube 4 can be easily removed for further disinfection and cleaning.

[0029] In the utility model, the lifting mechanism 5 is provided to drive the turning plate 9 to move up and down, so that the turning plate 9 can turn the sludge up and down, replacing some stirring devices arranged at the bottom, and playing the role of stirring the activated sludge sample. After the stirring device is removed from the bottom of the sampling tube 4, the activated sludge sample in the sampling tube 4 can be quickly discharged through the installed drainage pipe 42, thereby improving the discharge efficiency of the activated sludge sample.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for in-situ monitoring of activated sludge settling performance, comprising a mounting platform (1), characterized in that: An ultrasonic time domain reflectometer (2) is arranged on one side of the upper surface of the mounting platform (1), a fixing platform (3) is arranged on one side of the ultrasonic time domain reflectometer (2), and a sampling tube (4) is placed on the fixing platform (3); The sampling tube (4) is provided with a lifting mechanism (5) and a liquid inlet pipe (7); the lifting mechanism (5) is mounted on a fixed platform (3) by a fixing component (10); an end of the liquid inlet pipe (7) away from the end extending into the sampling tube (4) is connected and mounted on a water pump (8); and the water pump (8) is arranged on the upper surface of the mounting platform (1).

2. The device for in-situ monitoring of activated sludge settling performance according to claim 1, characterized in that: The sampling cylinder (4) comprises an upper cover (41) which is arranged on the top surface of the cylinder body, an ultrasonic probe (6) is arranged in the middle of the upper cover (41), a liquid discharge pipe (42) is arranged at the bottom of the cylinder body of the sampling cylinder (4), and the cylinder body of the sampling cylinder (4) is vertically mounted on the fixed platform (3).

3. The device for in-situ monitoring of activated sludge settling performance according to claim 2, characterized in that: A plurality of bolt holes (31) for mounting the lifting mechanism (5) are provided on one side of the upper surface of the fixing platform (3), the fixing components (10) are engaged with the bolt holes (31), and an opening (32) is provided in the middle of the fixing platform (3), the diameter of the opening (32) being larger than the diameter of the drainage pipe (42).

4. The device for in-situ monitoring of activated sludge settling performance according to claim 3, characterized in that: The lifting mechanism (5) comprises a connecting column (51), a fixing plate (52) is arranged at the bottom end of the connecting column (51), a fixing component (10) can be rotatably arranged in a mounting hole on the fixing plate (52), and an electric telescopic rod (53) is arranged at the upper end of the connecting column (51).

5. The device for in-situ monitoring of activated sludge settling performance according to claim 4, characterized in that: The telescopic rod portion at the bottom of the electric telescopic rod (53) passes through the upper cover (41) and extends into the cylinder body of the sampling cylinder (4), and a flip plate (9) is installed at the bottom end of the telescopic rod portion of the electric telescopic rod (53).

6. The device for in-situ monitoring of activated sludge settling performance according to claim 5, characterized in that: A first through hole (91) is formed through the middle of the flip plate (9), and a plurality of second through holes (92) are formed through the flip plate (9) outside the first through hole (91).

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