Aquaculture effluent separator

Abstract

The utility model provides a kind of aquaculture tail water separator, belong to separating equipment technical field. Including separator body, inlet part and outlet part, the inside of separator body has separation cavity, the separator body includes the cylindrical section, first cone section and second cone section connected in proper order, the cone angle of first cone section is greater than the cone angle of second cone section;The inlet part is set on the cylindrical section, the inlet part is connected with the separation cavity;The outlet part is set at the bottom of second cone section, the outlet part is connected with the separation cavity. Tail water is separated by first cone section and second cone section, solid particles are deposited below, water is above, greatly facilitate subsequent recovery of solid particles organic treatment, effectively avoid tail water pollution environment.

Description

Technical Field

[0001] This utility model belongs to the field of separation equipment technology, specifically relating to an aquaculture tailwater separator. Background Technology

[0002] Aquaculture wastewater typically contains solid waste such as uneaten feed and feces, characterized by high viscosity and a wide particle size distribution. Wastewater treatment generally requires initial separation of solid particles using a separator to aggregate them for easier subsequent recycling. However, existing separators for this type of wastewater often suffer from insufficient separation precision, easy clogging of the underflow outlet, and significant escape of fine particles, resulting in low solid-liquid separation efficiency and failing to meet the requirements for subsequent resource recovery of the separated solid particles. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model provides an aquaculture tailwater separator. The technical problem to be solved by this utility model is: how to ensure that the fixed particles in the tailwater are completely separated, so as to facilitate the subsequent recycling and treatment of the fixed particles in the tailwater.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An aquaculture wastewater separator, comprising: The separator body has a separation chamber inside. The separator body includes a cylindrical section, a first conical section, and a second conical section connected in sequence. The cone angle of the first conical section is greater than that of the second conical section. An inlet section is provided on the cylindrical section and is connected to the separation chamber; An outlet is provided at the bottom of the second conical section and is connected to the separation chamber.

[0005] In the above-mentioned aquaculture tailwater separator, the cone angle of the first cone section is 15°-30°; the cone angle of the second cone section is 10°-20°.

[0006] In the aforementioned aquaculture wastewater separator, the upper surface of the inlet is flush with the upper surface of the cylindrical section.

[0007] In the above-mentioned aquaculture tailwater separator, the inlet includes a straight section connected to the inlet pipe and an arc section communicating with the separation chamber. The arc section has a first end and a second end. The first end of the arc section is connected to the straight section, and the second end of the arc section is connected to the separation chamber. The wall of the arc section is a converging curved surface, and the radius of curvature of the arc section gradually decreases from the first end to the second end.

[0008] In the above-mentioned aquaculture tailwater separator, the inlet section further includes a guide block, which is disposed within the straight section, and the flow-facing surface of the guide block is a streamlined curved surface.

[0009] In the above-mentioned aquaculture tailwater separator, the outlet section includes an outlet segment, which is located at the bottom of the second cone segment and is connected to the separation chamber.

[0010] In the above-mentioned aquaculture wastewater separator, the aquaculture wastewater separator further includes an overflow section, which is disposed on the upper end face of the cylindrical section and is connected to the separation chamber.

[0011] In the above-mentioned aquaculture tailwater separator, the overflow section includes an overflow segment, which is disposed on the upper end face of the cylindrical segment and is connected to the separation chamber.

[0012] In the aforementioned aquaculture tailwater separator, the overflow section further includes a screen disposed within the overflow section.

[0013] In the above-mentioned aquaculture tailwater separator, the centerlines of the overflow section, cylindrical section, first cone section, second cone section and outlet section are located on the same straight line.

[0014] The beneficial effects of this utility model are: The separator of this invention separates the effluent through a first cone section and a second cone section. Solid particles settle at the bottom while water remains at the top, which greatly facilitates the subsequent recycling and organic treatment of solid particles and effectively avoids environmental pollution from the effluent. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the separator. Figure 2 This is a longitudinal sectional view of the separator; Figure 3 This is a cross-sectional view of the separator inlet. Figure 4 for Figure 3 Enlarged view of section A.

[0016] In the figure, 100 is the separator body; 110 is the separation chamber; 120 is the cylindrical section; 130 is the first conical section; 140 is the second conical section; 200 is the inlet; 210 is the straight section; 220 is the arc section; 221 is the first end; 222 is the second end; 230 is the guide block; 300 is the outlet; 310 is the outlet section; 400 is the overflow section; 410 is the overflow section; and 420 is the screen. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of the embodiments, it should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0019] In the description of the embodiments, it should be noted that when a component / part is referred to as being "set on" another component / part, it can be directly set on the other component / part or there may be an intervening component / part. When a component / part is referred to as being "connected / joined" to another component / part, it can be directly connected / joined to the other component / part or there may be an intervening component / part. The term "connected / joined" as used herein can include mechanical physical connections / joinings. The term "comprising / including" as used herein refers to the presence of a feature, step, or component / part, but does not exclude the presence or addition of one or more other features, steps, or components / parts. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] Unless otherwise defined, 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 belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. Furthermore, in the description of this application, the terms "first," "second," etc., are used for descriptive purposes and to distinguish similar objects only; there is no order between them, nor should they be construed as indicating or implying relative importance. Additionally, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0021] like Figure 1 and 2As shown, this embodiment provides an aquaculture wastewater separator, including a separator body 100, an inlet 200, and an outlet 300. The separator body 100 has a separation chamber 110 inside. The separator body 100 includes a cylindrical section 120, a first conical section 130, and a second conical section 140 connected in sequence. The cone angle of the first conical section 130 is greater than that of the second conical section 140. The inlet 200 is disposed on the cylindrical section 120 and is connected to the separation chamber 110. The outlet 300 is disposed at the bottom of the second conical section 140 and is connected to the separation chamber 110.

[0022] In this embodiment, aquaculture wastewater enters the separation chamber 110 within the separator body 100 from the inlet 200 for separation, and then exits from the outlet 300 to the next process for organic treatment of the separated fixed particles. Specifically, a water pump pushes the wastewater to the inlet 200 to ensure a certain flow velocity upon entry. The wastewater flows into the separation chamber 110 along the inlet section, and then flows downward in a rotating manner along the cylindrical section 120, the first conical section 130, and the second conical section 140. The first conical section 130 has a relatively large cone angle (e.g., 15°). The second conical section 110 (10°-30°) has a relatively gentle inner wall, which serves a dual purpose: firstly, as a flow field stabilization zone, it effectively buffers turbulence from the cylindrical section 120, suppressing short-circuit flow; secondly, the gentle slope reduces the axial settling velocity of the particles, prolonging the residence time of medium and coarse particles (e.g., 50-200 micrometers) in the separation chamber 110, allowing them ample opportunity to settle and move downwards along the wall under the gradually increasing centrifugal force, completing the primary separation and concentration. Subsequently, the fluid enters the second conical section 140 (e.g., 10°-20°) with a smaller cone angle. The steep inner wall of this section causes the vortex radius to decrease rapidly, and according to the principle of conservation of angular momentum, the tangential velocity of the fluid increases sharply, thus forming a strong centrifugal force field in the region of the second conical section 140. Under the action of this strong centrifugal force, fine particles (e.g., 10-50 micrometers) that could not be effectively removed in the primary separation are efficiently captured and separated. Meanwhile, the steep cone walls exert a strong compression effect on the settled slurry, increasing the solid content of the underflow and effectively preventing blockage at the underflow outlet. Through the synergistic effect of this 'gentle cone primary separation and concentration' and 'steep cone fine separation and compression', this separator achieves efficient and complete separation of broad-sized solid particles in aquaculture effluent. The separated effluent is discharged from the outlet and further separated by the first cone section 130 and the second cone section 140, with solid particles settling at the bottom and water at the top. This greatly facilitates subsequent organic treatment and recycling of solid particles, effectively preventing effluent pollution of the environment.

[0023] like Figure 1 and 2As shown, the cone angle of the first cone segment 130 is 15°-30°; the cone angle of the second cone segment 140 is 10°-20°.

[0024] In this embodiment, the cone angle of the first cone segment 130 is in the range of 15°-30°, and the cone angle of the second cone segment 140 is in the range of 10°-20°. For example, the cone angle of the first cone segment 130 is 25°, and the cone angle of the second cone segment 140 is 15°. It is sufficient to ensure that the cone angle of the first cone segment 130 is greater than the cone angle of the second cone segment 140. In this way, when the tailwater flows in the separation chamber 110, the first cone segment 130 can achieve primary separation of the fixed particles in the tailwater, and the second cone segment 140 can achieve complete separation of the solid particles in the tailwater.

[0025] like Figure 1 and 2 As shown, the upper surface of the inlet 200 is flush with the upper surface of the cylindrical section 120.

[0026] In this embodiment, the upper end face of the inlet 200 is flush with the upper end face of the cylindrical section 120. That is to say, the tailwater enters the inlet 200 and flows through the inlet 200 and enters the separation chamber 110 along the tangent of the cylindrical section 120. This allows the tailwater to have a tangential velocity along the cylindrical section 120 after entering the separation chamber 110. In other words, the tailwater can spirally flow along the separation chamber 110 from the cylindrical section 120 to the second conical section 140, thereby achieving the separation of fixed particles in the tailwater.

[0027] like Figure 3 and 4 As shown, the inlet portion 200 includes a straight section 210 connected to the water inlet pipe and an arc section 220 communicating with the separation chamber 110. The arc section 220 has a first end 221 and a second end 222. The first end 221 of the arc section 220 is connected to the straight section 210, and the second end 222 of the arc section 220 is connected to the separation chamber 110. The wall surface of the arc section 220 is a converging curved surface, and the radius of curvature of the arc section 220 gradually decreases from the first end to the second end.

[0028] In this embodiment, the straight section 210 is connected to the inlet pipe, which is a pipeline that transports the tailwater into the straight section 210. The first end 221 of the arc section 220 is connected to the straight section 210, and the second end 222 of the arc section 220 is connected to the separation chamber 110. When tailwater separation is required, the tailwater enters from the straight section 210, flows to the first end 221 of the arc section 220, enters the arc section 220 from the first end 221, and then flows to the second end 222 of the arc section 220. The water flows into the separation chamber 110 from the second end 222. Since the wall of the arc segment 220 is a converging curved surface, the inner wall of the arc segment 220 converges to a point at the second end 222. The radius of curvature of the arc segment 222 gradually decreases from the first end 221 to the second end 222, so that the flow velocity of the tailwater gradually increases when it flows through the arc segment 220. This can significantly improve the initial tangential velocity of the tailwater when it enters the separation chamber 110, thereby improving the separation effect of solid particles in the separation chamber 110.

[0029] like Figure 3 and 4 As shown, the inlet portion 200 also includes a flow guide block 230, which is disposed within the straight section 210, and the flow-facing surface of the flow guide block 230 is a streamlined curved surface.

[0030] In this embodiment, the guide block 230 is disposed within the straight section 210. After the tailwater enters the straight section 210, it flows through the guide block 230, which can rectify the tailwater and effectively guide it to move close to the wall surface. This significantly increases the initial tangential velocity of the tailwater when it enters the separation chamber 110, reduces turbulent energy loss, and provides initial kinetic energy for the formation of a stable strong swirling flow field. The flow-facing surface of the guide block 230 is a streamlined curved surface, which is the surface through which the tailwater flows when it enters the straight section 210. The streamlined curved surface of the guide block 230 provides a better guiding effect for the tailwater.

[0031] like Figure 1 and 2 As shown, the outlet section 300 includes an outlet segment 310, which is disposed at the bottom of the second conical segment 140 and is connected to the separation chamber 110.

[0032] In this embodiment, the outlet section 310 is located at the bottom of the second cone section 140 and is connected to the separation chamber 110. The tailwater after separation by the first cone section 130 and the second cone section 140 flows out from the outlet section 310. The outlet section 310 can be connected to the next process, such as a compressor. After separation, the fixed particles in the tailwater settle at the bottom, while the water is at the top. This greatly facilitates the compression and recycling of the fixed particles by the compressor to form organic fertilizer.

[0033] like Figure 1 and 2As shown, the aquaculture wastewater separator also includes an overflow section 400, which is disposed on the upper end face of the cylindrical section 120 and is connected to the separation chamber 110.

[0034] In this embodiment, the overflow section 400 is disposed on the upper end face of the cylindrical section 120 and is connected to the separation chamber 110. Since the tailwater flows spirally after entering the separation chamber 110, the spirally flowing tailwater will overflow at the top of the cylindrical section 120. The tailwater overflowing from the overflow section 400 is often tailwater containing fine particles. The overflow section 400 guides part of the overflowing tailwater to the next process, such as a protein separator. The protein separator recovers the fine particles in the tailwater overflowing from the overflow section 400. In this way, the overflow section 400 effectively avoids the overflowing tailwater from polluting the environment.

[0035] like Figure 2 and 3 As shown, the overflow section 400 includes an overflow segment 410, which is disposed on the upper end face of the cylindrical segment 120 and is connected to the separation chamber 110. The overflow section 400 also includes a screen 420, which is disposed within the overflow segment 410.

[0036] In this embodiment, the overflow section 410 is located on the upper end face of the cylindrical section 120 and is connected to the separation chamber 110, facilitating the recovery of overflowing tailwater through the overflow section 410. The screen 420 is located within the overflow section 410. When tailwater overflows, the screen 420 effectively intercepts medium and coarse particles mixed into the overflow tailwater due to flow field disturbances. Under the influence of gravity and the external flow field, the intercepted coarse particles are "captured" by the screen 420 and re-enter the separation chamber 110 for secondary separation. This significantly improves the clarity of the overflow liquid and the overall separation accuracy. As one embodiment, the sieve holes on the screen 420 are circular, with a diameter smaller than the target particle size of the medium and coarse particles to be separated.

[0037] like Figure 2 As shown, the center lines of the overflow section 410, cylindrical section 120, first conical section 130, second conical section 140 and outlet section 310 are located on the same straight line.

[0038] In this embodiment, the center lines of the overflow section 410, cylindrical section 120, first conical section 130, second conical section 140, and outlet section 310 are located on the same straight line. When separating the tailwater, the tailwater enters the separation chamber 110 and can undergo spiral flow, flowing downwards sequentially from the cylindrical section 120, first conical section 130, second conical section 140, and outlet section 310. This avoids the loss of tangential velocity of the tailwater, effectively improves the separation of solid particles in the tailwater, and greatly improves the separation effect.

[0039] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A wastewater separator for aquaculture, characterized in that, include: The separator body (100) has a separation chamber (110) inside. The separator body (100) includes a cylindrical section (120), a first conical section (130) and a second conical section (140) connected in sequence. The cone angle of the first conical section (130) is greater than the cone angle of the second conical section (140). An inlet (200) is provided on the cylindrical section (120) and is connected to the separation chamber (110); The outlet (300) is located at the bottom of the second conical section (140) and is connected to the separation chamber (110).

2. The aquaculture wastewater separator according to claim 1, characterized in that, The cone angle of the first cone segment (130) is 15°-30°; the cone angle of the second cone segment (140) is 10°-20°.

3. The aquaculture wastewater separator according to claim 1, characterized in that, The upper surface of the inlet (200) is flush with the upper surface of the cylindrical section (120).

4. The aquaculture wastewater separator according to claim 1, 2, or 3, characterized in that, The inlet (200) includes a straight section (210) connected to the water inlet pipe and an arc section (220) connected to the separation chamber (110). The arc section (220) has a first end (221) and a second end (222). The first end (221) of the arc section (220) is connected to the straight section (210), and the second end (222) of the arc section (220) is connected to the separation chamber (110). The wall of the arc section (220) is a converging curved surface, and the radius of curvature of the arc section (220) gradually decreases from the first end (221) to the second end (222).

5. The aquaculture wastewater separator according to claim 4, characterized in that, The inlet (200) also includes a guide block (230), which is disposed within the straight section (210), and the flow-facing surface of the guide block (230) is a streamlined curved surface.

6. The aquaculture wastewater separator according to claim 4, characterized in that, The outlet section (300) includes an outlet segment (310) disposed at the bottom of the second conical segment (140) and connected to the separation chamber (110).

7. The aquaculture wastewater separator according to claim 6, characterized in that, The aquaculture tailwater separator also includes an overflow section (400), which is located on the upper end face of the cylindrical section (120) and is connected to the separation chamber (110).

8. The aquaculture wastewater separator according to claim 7, characterized in that, The overflow section (400) includes an overflow segment (410), which is disposed on the upper end face of the cylindrical segment (120) and is connected to the separation chamber (110).

9. The aquaculture wastewater separator according to claim 8, characterized in that, The overflow section (400) also includes a screen (420) disposed within the overflow section (410).

10. The aquaculture wastewater separator according to claim 8, characterized in that, The centerlines of the overflow section (410), cylindrical section (120), first conical section (130), second conical section (140) and outlet section (310) are on the same straight line.

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