Laboratory efficient sedimentation tank capable of adjusting sedimentation time

Abstract

The utility model relates to a laboratory efficient sedimentation tank capable of adjusting sedimentation time, which comprises a sedimentation tank, a water storage tank is arranged on the outer side of the lower part of the sedimentation tank, and the top of the water storage tank is connected with a height-adjustable water outlet pipe; a water outlet communicated with the sedimentation tank and the water storage tank is formed in the side wall of the lower part of the sedimentation tank, a sludge storage tank is arranged at the bottom of the sedimentation tank, and a sludge discharge port is formed in the bottom of the sludge storage tank. The laboratory efficient sedimentation tank capable of adjusting the sedimentation time is novel in structure and reasonable in design, the water storage height of the sedimentation tank can be controlled according to the height of the water outlet pipe so as to change the sedimentation time, and adjustment is convenient; a waterproof filter plate with a replaceable filter screen is arranged, so that when more suspended matters exist, the filter screens with different mesh numbers can be used to improve the precipitation effect.

Description

Technical Field

[0001] This utility model relates to the field of water sedimentation experimental technology, and in particular to a laboratory high-efficiency sedimentation tank with adjustable sedimentation time. Background Technology

[0002] Sedimentation tanks are water purification devices that separate suspended particles with a density greater than water from wastewater by allowing them to settle to the bottom under the influence of gravity. They are used in the pretreatment process of wastewater and provide a basis for further water quality testing and treatment. However, current laboratory sedimentation tank experimental devices are not conducive to adjusting sedimentation time and adding filter screens to improve filtration effects, and they also differ somewhat from actual engineering applications. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a laboratory high-efficiency sedimentation tank with an adjustable sedimentation time that has a novel structure, is easy to operate, and is convenient to adjust.

[0004] This utility model is achieved by the following scheme: a laboratory high-efficiency sedimentation tank with adjustable sedimentation time, including a sedimentation tank, a water storage tank is provided on the lower outer side of the sedimentation tank, and a height-adjustable water outlet pipe is connected to the top of the water storage tank; a water outlet connecting the sedimentation tank and the water storage tank is provided on the lower side wall of the sedimentation tank, and a sludge storage trough is provided at the bottom of the sedimentation tank, with a sludge discharge port at the bottom of the sludge storage trough.

[0005] Furthermore, the sedimentation tank has an inlet on the upper part of the side wall opposite to the outlet.

[0006] Furthermore, the upper part of the sedimentation tank is provided with a baffle facing the water inlet, and there is a gap between the baffle and the side wall on the side where the water inlet is located.

[0007] Furthermore, the sedimentation tank is equipped with a splash guard located below the interval.

[0008] Furthermore, the sedimentation tank is equipped with a waterproof filter plate, and a filter screen is detachably connected to the waterproof filter plate.

[0009] Furthermore, the waterproof filter plate is inclined, with the upper end of the waterproof filter plate inclined towards the inlet side and against the baffle, and the lower end inclined towards the outlet side and against the bottom corner of the sedimentation tank.

[0010] Furthermore, a water inlet switch is provided at the water inlet.

[0011] Furthermore, a sludge discharge switch is provided at the sludge discharge port.

[0012] Furthermore, the mud storage tank is an inverted cone shape, wider at the top and narrower at the bottom.

[0013] Furthermore, the top of the water storage tank is sealed and has an insertion hole for inserting a water outlet pipe, and the water outlet pipe is slidably sealed with the insertion hole.

[0014] Compared with the prior art, the present invention has the following advantages: The laboratory high-efficiency sedimentation tank with adjustable sedimentation time of the present invention has a novel structure and reasonable design. The water storage height of the sedimentation tank can be controlled according to the height of the outlet pipe to change the sedimentation time. It is easy to operate and convenient to adjust. It is equipped with a waterproof filter plate with replaceable filter screen. When there are many suspended solids, different mesh sizes of filter screens can be used to improve the sedimentation effect.

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through specific embodiments and related drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] The numbers in the diagram are as follows: 1-Sedimentation tank, 2-Sludge storage tank, 3-Baffle, 4-Splash-proof guide plate, 5-Waterproof filter plate, 6-Water storage tank, 7-Height-adjustable outlet pipe, 8-Inlet, 9-Sludge discharge port, 10-Outlet. Detailed Implementation

[0018] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] like Figure 1As shown, a high-efficiency laboratory sedimentation tank with adjustable sedimentation time includes a sedimentation tank 1. A water storage tank 6 is located on the lower outer side of the sedimentation tank 1, serving to buffer the water and prevent overflow. The top of the water storage tank 6 is connected to a height-adjustable outlet pipe 7. An outlet 10 connecting the sedimentation tank and the water storage tank is located on the lower side wall of the sedimentation tank. A sludge storage trough is located at the bottom of the sedimentation tank, and a sludge discharge port 9 is located at the bottom of the sludge storage trough. Because the water storage tank and the sedimentation tank are connected, water will only flow out of the outlet pipe when the liquid level in the sedimentation tank is higher than the outlet pipe. The water storage height in the sedimentation tank can be controlled according to the height of the outlet pipe to change the sedimentation time. The adjustable sedimentation time range is 10-30 minutes, corresponding to a flow rate of 10 L / h and a water storage height of 7.5 cm-25 cm, making it suitable for use as a simulation device in practical engineering applications.

[0021] In this embodiment, the sedimentation tank has an inlet 8 on the upper part of the side wall opposite to the outlet.

[0022] In this embodiment, the upper part of the sedimentation tank is provided with a baffle facing the water inlet. The baffle is arc-shaped with its concave surface facing the water inlet, and there is a gap between the baffle and the side wall on the side where the water inlet is located.

[0023] In this embodiment, the sedimentation tank is provided with a splash-proof guide plate located below the interval.

[0024] In this embodiment, the sedimentation tank is equipped with a waterproof filter plate, on which a filter screen is detachably connected. The waterproof filter plate is rectangular, and the filter screen is installed in the middle of the waterproof filter plate, which can be connected by screws. Different mesh sizes of filter screens can be replaced according to the amount of suspended solids to improve the sedimentation effect.

[0025] In this embodiment, the waterproof filter plate is inclined, with its upper end angled towards the inlet and resting against the baffle, and its lower end angled towards the outlet and resting against the bottom corner of the sedimentation tank. The waterproof filter plate is easy to install and remove.

[0026] In this embodiment, a water inlet switch is provided at the water inlet.

[0027] In this embodiment, a sludge discharge switch is provided at the sludge discharge port.

[0028] In this embodiment, the mud storage tank is an inverted cone shape, wider at the top and narrower at the bottom.

[0029] In this embodiment, the water outlet pipe is a straight pipe arranged vertically, the top of the water storage tank is closed and has an insertion hole for inserting the water outlet pipe, and the water outlet pipe and the insertion hole are slidably sealed together.

[0030] The sedimentation tank, sludge storage tank, baffles, water storage tank, and outlet pipe are all made of acrylic, the splash guard is made of foam, and the switches are made of nylon, all with good corrosion resistance and adaptability to different water qualities. The sedimentation tank itself is 0.3m high, 0.12m wide, and 0.18m long.

[0031] After the sewage enters through the inlet, it is intercepted by the baffle and splash guard, and flows from top to bottom at a slow speed. Suspended solids will settle in the sludge storage tank at the bottom of the pool. The clear liquid flows through the waterproof filter plate with a filter screen and flows from the outlet to the water storage tank and out through the outlet pipe, completing the sedimentation.

[0032] Specific implementation case: The actual wastewater used was taken from a shrimp farm in Quanzhou City, Fujian Province. The original wastewater quality indicators were: suspended solids (SS) 73.83 mg / L, total phosphorus (TP) 2.04 mg / L, total nitrogen (TN) 34.90 mg / L, and chemical oxygen demand (COD) 32.04 mg / L.

[0033] During operation, a peristaltic pump draws water from top to bottom through the inlet. Wastewater is intercepted by a baffle and flows down with the splash guard. Due to the slow flow rate, suspended solids gradually settle to the bottom sludge tank. Suspended solids that are difficult to settle are also intercepted by the filter screen. The remaining wastewater passes through the filter screen on the waterproof filter plate and flows out of the storage tank through the outlet pipe, completing the sedimentation process. During cleaning, the bottom sludge discharge port is opened to discharge sludge. Sampling is performed after the water flow from the outlet pipe has stabilized for a period of time.

[0034] Sedimentation experiments were conducted using filters with different mesh sizes: 100 mesh, 160 mesh, and 200 mesh. The removal rates of the filters with different mesh sizes were as follows:

[0035] Suspended solids (SS): 34.94%, 35.85%, 48.04%

[0036] Total phosphorus (TP): 14.22%, 24.35%, 25.98%

[0037] Total nitrogen (TN): 9.60%, 15.57%, 16.19%

[0038] Chemical oxygen demand (COD): 17.17%, 20.77%, 23.29%

[0039] The testing standard is "Marine Monitoring Specifications Part 4: Seawater Analysis" (GB17378.4—2007).

[0040] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0041] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0042] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0043] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A laboratory high-efficiency sedimentation tank with adjustable sedimentation time, characterized in that: The system includes a sedimentation tank, a water storage tank located on the lower outer side of the sedimentation tank, and a height-adjustable outlet pipe connected to the top of the water storage tank. The lower side wall of the sedimentation tank has an outlet connecting the sedimentation tank and the water storage tank. A sludge storage trough is located at the bottom of the sedimentation tank, with a sludge discharge port at the bottom of the sludge storage trough. An inlet is located on the upper part of the side wall opposite the outlet of the sedimentation tank. A baffle is located in the upper part of the sedimentation tank facing the inlet, with a gap between the baffle and the side wall where the inlet is located. A splash-proof guide plate is located below the gap inside the sedimentation tank. The outlet pipe is a vertically aligned straight pipe. The top of the water storage tank is closed and has an insertion hole for inserting the outlet pipe, with the outlet pipe slidingly and sealingly fitted into the insertion hole.

2. The laboratory high-efficiency sedimentation tank with adjustable sedimentation time according to claim 1, characterized in that: The sedimentation tank is equipped with a waterproof filter plate, and a filter screen is detachably connected to the waterproof filter plate.

3. The laboratory high-efficiency sedimentation tank with adjustable sedimentation time according to claim 2, characterized in that: The waterproof filter plate is inclined, with the upper end of the filter plate inclined towards the inlet side and against the baffle, and the lower end inclined towards the outlet side and against the bottom corner of the sedimentation tank.

4. The laboratory high-efficiency sedimentation tank with adjustable sedimentation time according to claim 1, characterized in that: A water inlet switch is provided at the water inlet.

5. The laboratory high-efficiency sedimentation tank with adjustable sedimentation time according to claim 1, characterized in that: A mud discharge switch is provided at the mud discharge port.

6. The laboratory high-efficiency sedimentation tank with adjustable sedimentation time according to claim 1, characterized in that: The mud storage tank is an inverted cone shape, wider at the top and narrower at the bottom.

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