Aquaculture tail water pollutant settling device

Abstract

A rotating table is arranged in a first settling cylinder, a filter screen cover is fixed on the rotating table, an opening is formed in the top of the filter screen cover, a water inlet is formed in the upper portion, corresponding to the inner space of the filter screen cover, of the first settling cylinder, and a first drain outlet is formed in the bottom of the first settling cylinder; a valve is arranged on the first drain outlet, the first settling cylinder is communicated with a second settling cylinder through a pipeline, a valve is arranged on the pipeline, an additive inlet is formed in the second settling cylinder, a water pump is arranged on the second settling cylinder, a water pumping pipe of the water pump extends into the deep position in the second settling cylinder, and a water outlet pipe of the water pump is connected with a drain tank; the sedimentation and filtration device disclosed by the utility model has the advantages that the sedimentation and filtration effects are good, and the cleaning is convenient.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture equipment technology, specifically to a sedimentation device for pollutants in aquaculture wastewater. Background Technology

[0002] Aquaculture wastewater refers to the unused water discharged from aquaculture systems (including aquaculture ponds, nursery ponds, and factory workshops) into natural water bodies during or after the aquaculture process. Because this wastewater contains a significant amount of pollutants (such as uneaten feed and fish feces), direct discharge into natural water bodies without treatment can easily lead to eutrophication and environmental pollution. Therefore, aquaculture wastewater generally requires sedimentation treatment before discharge to prevent pollution of natural water bodies. Sedimentation devices are commonly used for this process.

[0003] Existing sedimentation devices have poor sedimentation and filtration efficiency, are complex to construct, have poor operational stability, and are inconvenient to maintain, making them difficult to meet the needs of aquaculture wastewater treatment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To overcome the shortcomings of existing technologies, a sedimentation device for pollutants in aquaculture wastewater is proposed to solve the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: This utility model proposes a sedimentation device for pollutants in aquaculture wastewater, including a first sedimentation cylinder and a second sedimentation cylinder. A rotating platform is provided inside the first sedimentation cylinder, and a filter screen is fixed on the rotating platform with an opening at the top. An inlet is provided on the first sedimentation cylinder above the space inside the filter screen, and a first discharge port is provided at the bottom of the first sedimentation cylinder with a valve. The first sedimentation cylinder is connected to the second sedimentation cylinder via a pipe with a valve. An additive inlet is provided on the second sedimentation cylinder, and a water pump is provided on the second sedimentation cylinder with its pump pipe extending deep into the second sedimentation cylinder. The water outlet pipe of the water pump is connected to a drainage tank. A second discharge port is provided at the bottom of the second sedimentation cylinder with a valve.

[0008] Furthermore, the rotary table is driven to rotate by a first motor, and the first motor is installed at the bottom outside the first settling cylinder.

[0009] Furthermore, a second motor is installed on the second settling cylinder, and the second motor drives a stirring rod connected to it, with the stirring rod extending into the second settling cylinder.

[0010] Furthermore, the stirring rod is provided with multiple stirring blades.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] The present invention relates to a sedimentation device for pollutants in aquaculture wastewater, which has good sedimentation and filtration effects and is easy to clean. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] 1-First settling tank; 11-Water inlet; 12-First drain outlet; 2-Rotating table; 21-Filter screen cover; 22-First motor; 3-Pipeline; 4-Second settling tank; 41-Additive inlet; 42-Water pump; 43-Second drain outlet; 5-Second motor; 51-Agitator rod; 52- Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] like Figure 1 The aquaculture wastewater pollutant settling device shown includes a first settling cylinder 1 and a second settling cylinder 4. A rotating platform 2 is installed inside the first settling cylinder 1, and a filter screen 21 is fixed on the rotating platform 2. The top of the filter screen 21 is open. An inlet 11 is provided on the first settling cylinder 1 above the space inside the filter screen 21. A first drain outlet 12 is provided at the bottom of the first settling cylinder 1, and a valve is provided on the first drain outlet 12. The first settling cylinder 1 is connected to the second settling cylinder 4 through a pipe 3, and a valve is provided on the pipe 3. An additive inlet 41 is provided on the second settling cylinder 4. A water pump 42 is provided on the second settling cylinder 4, and the water pump 42's suction pipe extends deep into the second settling cylinder 4. The water pump 42's outlet pipe is connected to a drainage tank. A second drain outlet 43 is provided at the bottom of the second settling cylinder 4, and a valve is provided on the second drain outlet 43.

[0018] In a preferred embodiment, the rotary table 2 is driven to rotate by a first motor 22, and the first motor 22 is installed at the bottom outside the first settling cylinder 1.

[0019] In a preferred embodiment, a second motor 5 is provided on the second settling cylinder 4, and the second motor 5 drives the connected stirring rod 51, with the stirring rod 51 extending into the second settling cylinder 4.

[0020] As a further improvement, multiple stirring blades 52 are provided on the stirring rod 51.

[0021] The present invention provides a sedimentation device for pollutants in aquaculture wastewater, which can effectively separate and filter impurities and pollutants in the wastewater before discharge.

[0022] Specifically, the wastewater is introduced into the first settling tank 1 through the inlet 11 and falls from above the filter screen 21. At this time, the first motor 22 drives the rotation of the rotary table 2, which in turn drives the rotation of the filter screen 21, achieving centrifugal separation of the wastewater in the first settling tank 1. Large debris is isolated within the filter screen 21, while the separated wastewater, after self-settling, can be discharged through the first drain outlet 12 to remove settled sludge. The water can then be guided into the second settling tank 4 through the pipe 3. The water entering the second settling tank 4 can have flocculant added through the additive inlet 41, and under the agitation of the stirring rod 51, it is thoroughly mixed, causing the impurities to chemically settle.

[0023] Next, the water that has settled and separated can be discharged by water pump 42. The impurities that settle in the second settling cylinder 4 can be discharged through the second drain outlet 43.

[0024] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A sedimentation device for pollutants in aquaculture wastewater, characterized in that: The settling cylinder includes a first settling cylinder (1) and a second settling cylinder (4). A rotating platform (2) is provided inside the first settling cylinder (1). A filter screen cover (21) is fixed on the rotating platform (2), and the top of the filter screen cover (21) is open. An inlet (11) is provided on the first settling cylinder (1) above the space inside the filter screen cover (21). A first drain outlet (12) is provided at the bottom of the first settling cylinder (1), and a valve is provided on the first drain outlet (12). The second settling cylinder (4) is connected through a pipe (3), and a valve is installed on the pipe (3). An additive inlet (41) is installed on the second settling cylinder (4). A water pump (42) is installed on the second settling cylinder (4), and the pumping pipe of the water pump (42) extends deep into the second settling cylinder (4). The outlet pipe of the water pump (42) is connected to a drainage pool. A second sewage outlet (43) is installed at the bottom of the second settling cylinder (4), and a valve is installed on the second sewage outlet (43).

2. The aquaculture wastewater pollutant settling device according to claim 1, characterized in that: The rotating platform (2) is driven to rotate by the first motor (22), and the first motor (22) is installed at the bottom outside the first settling cylinder (1).

3. The aquaculture wastewater pollutant settling device according to claim 1, characterized in that: A second motor (5) is installed on the second settling cylinder (4). The second motor (5) drives the connecting stirring rod (51), and the stirring rod (51) extends into the second settling cylinder (4).

4. The aquaculture wastewater pollutant settling device according to claim 3, characterized in that: Multiple stirring blades (52) are provided on the stirring rod (51).

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