Simple mud level measuring device for sedimentation tank of sewage treatment plant
By designing a simple measurement device including operating rods, adjustment components and samplers, the accuracy and maintenance cost of the sludge level measurement of the sewage treatment plant's second sedimentation tank are solved, and high accuracy and low cost mud level monitoring are achieved.
Patent Information
- Application Number
- CN202421130097.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-22
AI Technical Summary
It is difficult to accurately measure the mud position of the sedimentary tank of the sewage treatment plant in the prior art, and the existing online instruments are affected by the upper suspended substance, so the measurement accuracy is low and the maintenance cost is high.
A simple measuring device including an operating rod, an adjustment component and a sampler is designed. By moving the sampler up and down on the operating rod, combining transparent plastic material and solid metal operating rod, the precise measurement of the mud level of the second sedimentation tank is achieved.
The device is simple in structure and low in production cost. It does not require regular calibration and maintenance. It has high measurement accuracy, which reduces the cost of use and maintenance. It effectively monitors the mud level parameters of the second sedimentation tank and guides process regulation.
Smart Images
Figure CN222550208U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a simple mud level measuring device for a sedimentation tank of a sewage treatment plant, and belongs to the field of operation and management of sewage treatment plants. Background Art
[0002] Sedimentation tanks in sewage treatment plants can be divided into primary sedimentation tanks and secondary sedimentation tanks according to different process layouts. Primary sedimentation tanks are the main structures for primary sewage treatment, treating suspended solids and part of BOD5 in the influent. Secondary sedimentation tanks are located after biological treatment structures, mainly used to separate mud-water mixtures in aeration tanks and to concentrate return sludge, and are an important part of biological treatment. The mud level in the secondary sedimentation tank is also called the sludge layer height, which is defined as the vertical distance between the bottom of the secondary sedimentation tank and the mud-water interface. It is a very important parameter in the design, operation and control of the secondary sedimentation tank. The mud level is closely related to the mud running phenomenon in the secondary sedimentation tank. Due to the poor sedimentation of activated sludge, the mud-water mixture settles too slowly after entering the secondary sedimentation tank, so that the mud level in the secondary sedimentation tank continues to rise. When there is a water volume fluctuation impact, a large amount of activated sludge flows out from the effluent weir. The mud running phenomenon in the secondary sedimentation tank is common in urban sewage treatment plants and industrial wastewater treatment plants, resulting in an increase in effluent, and in severe cases, it will cause the effluent to exceed the standard.
[0003] At present, the secondary sedimentation tank ultrasonic mud-water interface meter is an online instrument for monitoring the sludge interface in the secondary sedimentation tank. However, the suspended solids in the upper layer of the secondary sedimentation tank will affect its measurement accuracy, and the instrument requires regular maintenance and servicing, which is costly. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a simple mud level measuring device for a sedimentation tank in a sewage treatment plant, which has a simple structure and realizes accurate measurement of the mud level in a secondary sedimentation tank.
[0005] The utility model discloses a simple mud level measuring device for a sedimentation tank of a sewage treatment plant, comprising an operating rod, an adjusting component and a plurality of samplers. An opening is arranged on the top of the sampler, a scale is arranged on the operating rod, and the sampler can be moved up and down on the operating rod through the adjusting component.
[0006] When in use, place the sampler at a certain scale on the operating rod, insert the operating rod into the sedimentation tank, and the sludge or water in the sedimentation tank enters the sampler. The sludge height range is estimated according to the load in the sampler, and then the position of the sampler on the operating rod is adjusted. The above operation is repeated to further determine the sludge height. The sludge height is obtained by setting the sampler and the scale on the operating rod, thereby avoiding the influence of suspended matter on the measuring instrument and achieving high measurement accuracy. At the same time, the device has a simple structure and low production cost. There is no need to calibrate and maintain the device regularly, thereby reducing the cost of use and maintenance.
[0007] The sampler is made of transparent plastic. After the sludge or sewage in the secondary sedimentation tank enters the sampler, by using transparent plastic, it is possible to visually see whether there is sludge in the sampler, which is convenient for observation.
[0008] The operating rod is made of solid metal. The operating rod is made of solid metal, which improves the strength of the operating rod and prevents the operating rod from bending due to frequent use; on the other hand, it increases the weight of the operating rod, making it easier for the operator to insert the operating rod into the sludge.
[0009] The adjustment assembly comprises an annular buckle, the side wall of the annular buckle is fixedly connected to the side wall of the sampler, and the sampler is sleeved on the outer periphery of the operating rod through the annular buckle. The sampler can move up and down on the operating rod through the annular buckle, which is convenient for adjusting the position of the sampler.
[0010] The adjustment assembly also includes a pin, and a through hole is provided on the circumferential side wall of the ring buckle, and the pin passes through the through hole and abuts against the operating rod. By setting the pin, the position of the ring buckle is fixed, that is, the position of the sampler is fixed to prevent the position of the sampler from moving when entering the sludge.
[0011] At least two through holes are provided on the circumferential side wall of the annular buckle, and the number of the pins is at least two.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] (1) The utility model improves the measurement accuracy by setting an operating rod and a sampler that can move up and down. At the same time, the device has a simple structure and low production cost. It does not need to be calibrated and maintained regularly, which reduces the cost of use and maintenance. By monitoring the mud level parameters of the secondary sedimentation tank, the process control is guided, providing convenience for the production and operation of the sewage treatment plant.
[0014] (2) The adjustment assembly also includes a pin, and a through hole is provided on the circumferential side wall of the ring buckle, and the pin passes through the through hole and abuts against the operating rod. By providing the pin, the position of the ring buckle is fixed, that is, the position of the sampler is fixed to prevent the position of the sampler from moving when entering the sludge.
[0015] (3) The operating rod is made of solid metal. The operating rod is made of solid metal. On the one hand, it improves the strength of the operating rod and prevents the operating rod from bending due to frequent use; on the other hand, it increases the weight of the operating rod, making it easier for the operator to insert the operating rod into the sludge. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of the present utility model;
[0017] Figure 2 It is a schematic diagram of the top view of the adjustment component and the sampler.
[0018] In the figure: 1. operating lever; 2. ring buckle; 3. pin; 4. scale; 5. sampler. DETAILED DESCRIPTION
[0019] The utility model is further described below in conjunction with embodiments:
[0020] Example 1
[0021] like Figure 1 and Figure 2 As shown, the utility model discloses a simple mud level measuring device for a sedimentation tank of a sewage treatment plant, comprising an operating rod 1, an adjusting assembly and a plurality of samplers 5. An opening is arranged on the top of the sampler 5, a scale 4 is arranged on the operating rod 1, and the sampler 5 can be moved up and down on the operating rod 1 through the adjusting assembly.
[0022] The material of the sampler 5 is transparent plastic. After the sludge or sewage in the secondary sedimentation tank enters the sampler 5, by using transparent plastic, it is possible to visually see whether there is sludge in the sampler 5, which is convenient for observation.
[0023] The operating rod 1 is made of solid metal. The operating rod 1 is made of solid metal, which, on the one hand, improves the strength of the operating rod 1 and prevents the operating rod 1 from bending due to frequent use; on the other hand, it increases the weight of the operating rod 1, making it easier for the operator to insert the operating rod 1 into the sludge.
[0024] The adjustment assembly includes a ring buckle 2, the side wall of the ring buckle 2 is fixedly connected to the side wall of the sampler 5, and the sampler 5 is sleeved on the outer periphery of the operating rod 1 through the ring buckle 2. The sampler 5 can move up and down on the operating rod 1 through the ring buckle 2, which is convenient for adjusting the position of the sampler 5.
[0025] The adjustment assembly also includes a pin 3. A through hole is provided on the circumferential side wall of the ring buckle 2. The pin 3 passes through the through hole and abuts against the operating rod 1. By providing the pin 3, the position of the ring buckle 2 is fixed, that is, the position of the sampler 5 is fixed to prevent the sampler 5 from moving when entering the sludge.
[0026] Two through holes are provided on the circumferential side wall of the annular buckle 2, and the number of the pins 3 is two.
[0027] Working process: When in use, place the sampler 5 at a certain scale 4 on the operating rod 1, insert the operating rod 1 into the sedimentation tank, and the sludge or water in the sedimentation tank enters the sampler 5. Estimate the sludge height range based on the load in the sampler 5, and then adjust the position of the sampler 5 on the operating rod 1. Repeat the above operation until the sludge height is determined.
[0028] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.
Claims
1. A simple mud level measuring device for a sedimentation tank in a sewage treatment plant, characterized in that: The sampler (5) comprises an operating rod (1), an adjustment component and a plurality of samplers (5); an opening is arranged at the top of the sampler (5); a scale (4) is arranged on the operating rod (1); and the sampler (5) can be moved up and down on the operating rod (1) through the adjustment component; The adjustment component comprises an annular buckle (2), the side wall of the annular buckle (2) is fixedly connected to the side wall of the sampler (5), and the sampler (5) is sleeved on the outer periphery of the operating rod (1) through the annular buckle (2).
2. The simple mud level measuring device for a sedimentation tank in a sewage treatment plant according to claim 1 is characterized in that: The material of the sampler (5) is transparent plastic.
3. The simple mud level measuring device for a sedimentation tank in a sewage treatment plant according to claim 1 is characterized in that: The operating rod (1) is made of solid metal.
4. The simple mud level measuring device for a sedimentation tank in a sewage treatment plant according to claim 1, characterized in that: The adjustment component also includes a pin (3). A through hole is provided on the circumferential side wall of the annular buckle (2). The pin (3) passes through the through hole and abuts against the operating rod (1).
5. The simple mud level measuring device for a sedimentation tank in a sewage treatment plant according to claim 4 is characterized in that: At least two through holes are provided on the circumferential side wall of the annular buckle (2), and the number of the pins (3) is at least two.