Tailwater treatment device

Abstract

The invention discloses a tailwater treatment device. The tailwater treatment device is used to treat water in a pond, and includes a treatment tank, an air pump, a water return and drainage assembly, and a foam discharge assembly. The inlet of the treatment tank is used to communicate with the pond; the air outlet of the air pump is arranged in the treatment tank, and is used to pump gas into the water in the treatment tank; the water return and drainage assembly includes a drainage member, and the drainage member has a first collection chamber and a drainage port. The first collection chamber is connected to the outlet of the treatment tank, and is used to collect water and foam drawn from the treatment tank. The drainage port is connected to the first collection chamber to discharge the water in the first collection chamber to the pond; the foam discharge assembly includes a foam collection member, and the foam collection member is arranged above the drainage member and has a second collection chamber, and the second collection chamber is connected to the first collection chamber, and is used to collect foam. The foam collection member is provided with a foam discharge port connected to the second collection chamber. The tailwater treatment device can effectively separate and treat soluble organic matter in tailwater.

Description

Technical Field

[0001] The present application relates to the technical field of aquaculture wastewater treatment equipment, and in particular to a tailwater treatment device. Background Art

[0002] With the promotion of intensive aquaculture models, high density and high feeding have caused serious excess of organic matter in water bodies, leading to pollution of aquaculture water bodies and affecting the healthy development of aquaculture. Therefore, the treatment of aquaculture effluent has become an urgent problem to be solved in the aquaculture industry.

[0003] In the related art, the tailwater treatment device extracts tailwater from the bottom of the pond, separates solid pollutants such as leftover bait and feces from the extracted tailwater, and then discharges the tailwater from which solid pollutants such as leftover bait and feces are separated back into the pond. However, the tailwater discharged back into the pond still contains a large amount of soluble organic matter, such as debris and protein, which still has a certain impact on the pond environment and is not conducive to the healthy development of pond aquaculture. Summary of the invention

[0004] The present application discloses a tailwater treatment device, which can effectively separate and treat soluble organic matter in tailwater, thus facilitating the healthy development of pond aquaculture.

[0005] In order to achieve the above objectives, in a first aspect, the present application discloses a tailwater treatment device for treating water in a pond, characterized in that it comprises:

[0006] a treatment tank, wherein the inlet of the treatment tank is used to communicate with the pond;

[0007] an air pump, the air outlet of the air pump being arranged in the treatment tank, for pumping gas into the water in the treatment tank to form foam on the surface of the water;

[0008] A water return and drainage assembly, the water return and drainage assembly comprising a drainage member, the drainage member having a first collecting chamber, the first collecting chamber being communicated with the outlet of the treatment tank and used to collect water and foam drawn from the treatment tank, the drainage member comprising a drainage port, the drainage port being communicated with the first collecting chamber, so as to discharge the water in the first collecting chamber to the pond;

[0009] A foam discharge component, the foam discharge component includes a foam collecting piece, the foam collecting piece is arranged above the drainage piece, the foam collecting piece has a second collecting cavity, the second collecting cavity is connected with the first collecting cavity and is used for collecting the foam, and the foam collecting piece is provided with a foam discharge outlet connected with the second collecting cavity.

[0010] In a possible implementation, the water drain port includes a plurality of filter holes, and the filter holes are configured to allow the water to pass through and prevent the foam from passing through.

[0011] In a possible implementation, the drain outlet is disposed between the top and the bottom of the drain member, and an angle between a drainage direction of the drain outlet and a vertical direction is greater than 0° and less than or equal to 90°.

[0012] In one possible implementation, the water return drainage assembly also includes a drainage pump, which is used to pump water in the treatment tank into the first collection chamber, and the drainage pump is configured to make the liquid level in the first collection chamber higher than the drain port and lower than the second collection chamber.

[0013] In a possible implementation, the foam discharge outlet is lower than the connection point between the second collecting chamber and the first collecting chamber.

[0014] In one possible implementation, the drainage member and the foam collection member are both tubular structures extending in the horizontal direction, and both ends of the drainage member are closed, and both ends of the foam collection member are connected to the drainage member through connecting pipes.

[0015] In one possible implementation, the tail water treatment device includes a stratification component, which is arranged in the treatment tank and is used to stratify the water introduced into the treatment tank to form a solid-liquid mixed layer and a water layer. The air pump is used to pump gas into the water layer to form a foam layer on the surface of the water layer.

[0016] In one possible implementation, the outlet of the treatment tank includes a first outlet, which is communicated with the water layer and is located above the air outlet of the air pump.

[0017] In a possible implementation, the outlet of the processing tank further includes a second outlet, and the second outlet is connected to the foam layer.

[0018] In one possible implementation, the layered component includes a plurality of funnels, which are arranged in sequence along a vertical direction, the inlet of the treatment tank is connected to the interior of the topmost funnel, and the outlet direction of the water outlet of the upper funnel among the two adjacent funnels is arranged toward the inner wall of the lower funnel.

[0019] Compared with the prior art, the beneficial effects of this application are:

[0020] In the present application, the first collecting chamber of the drainage member in the drainage assembly is connected to the outlet of the treatment tank, and is used to collect water and foam drawn from the treatment tank, so that water separated from soluble organic matter such as debris and protein and foam carrying soluble organic matter such as debris and protein can be introduced into the first collecting chamber. The drainage member also includes a drainage port, which is connected to the first collecting chamber to drain the water separated from soluble organic matter such as debris and protein in the first collecting chamber back to the pond, so that the water in the pond used for aquaculture can be recycled, which can be beneficial to the healthy development of pond aquaculture.

[0021] By arranging the foam collecting piece in the foam discharge component above the drainage piece in the water return water component, and the second collecting chamber in the foam discharge component is connected with the first collecting chamber in the water return water component, not only can a small amount of bubbles in the water introduced from the treatment tank into the first collecting chamber gradually rise to the water surface during the flow, thereby lowering the content of debris, protein, etc. in the water, but also a small amount of water in the foam introduced from the treatment tank into the first collecting chamber can gradually drop into the water during the flow, thereby reducing the water content in the foam, so that as much water as possible can be discharged back into the pond after treatment. At the same time, the foam discharge component and the water return water component share a set of pipes connected to the treatment tank, thereby effectively reducing the space occupied by the foam discharge component and the water return water component, reducing the volume of the tail water treatment device, and reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a structural schematic diagram of a first tailwater treatment device provided in an embodiment of the present application;

[0024] Figure 2 is a three-dimensional diagram of a tailwater treatment device provided in an embodiment of the present application;

[0025] Figure 3 It is a structural schematic diagram of a combination of a first water return water component and a water discharge foam component provided in an embodiment of the present application;

[0026] Figure 4 It is a structural schematic diagram of a combination of a second water return water component and a water discharge foam component provided in an embodiment of the present application;

[0027] Figure 5 is a structural schematic diagram of a second tailwater treatment device provided in an embodiment of the present application;

[0028] Figure 6 It is a structural schematic diagram of the third tailwater treatment device provided in the embodiment of the present application.

[0029] Description of reference numerals:

[0030] 1-treatment tank; 11-first outlet; 12-second outlet; 2-air pump; 3-water return assembly; 31-drainage piece; 311-first collecting chamber; 312-drainage outlet; 32-drainage pump; 4-foam discharge assembly; 41-foam collecting piece; 411-second collecting chamber; 412-foam discharge outlet; 42-foam discharge pipe; 5-connecting pipe; 6-septic tank; 7-layered assembly; 8-aerator; 10-tailwater treatment device; 20-pond. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] In this application, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0034] The present application discloses a tailwater treatment device, which can effectively separate and treat soluble organic matter in tailwater, thus facilitating the healthy development of pond aquaculture.

[0035] The technical solution of the present application will be further described below in conjunction with specific embodiments and drawings.

[0036] This embodiment provides a tailwater treatment device for treating water in a pond, such as Figure 1 and Figure 2As shown, the tailwater treatment device 10 includes a treatment tank 1, an air pump 2, a water return assembly 3 and a foam discharge assembly 4. The inlet of the treatment tank 1 is used to communicate with the pond 20; the air outlet of the air pump 2 is arranged in the treatment tank 1, and is used to pump gas into the water in the treatment tank 1 to form foam on the surface of the water; the water return assembly 3 includes a drainage member 31, the drainage member 31 has a first collection chamber 311, the first collection chamber 311 is connected to the outlet of the treatment tank 1, and is used to collect water and foam drawn from the treatment tank 1, the drainage member 31 includes a drainage port 312, the drainage port 312 is connected to the first collection chamber 311, so as to discharge the water in the first collection chamber 311 to the pond 20; the foam discharge assembly 4 includes a foam collection member 41, the foam collection member 41 is arranged above the drainage member 31, the foam collection member 41 has a second collection chamber 411, the second collection chamber 411 is connected to the first collection chamber 311, and is used to collect foam, and the foam collection member 41 is provided with a foam discharge port 412 connected to the second collection chamber 411.

[0037] It should be explained that the water in the above-mentioned pond 20 refers to the water in the pond 20 used for breeding, such as the water in the open-air pond 20, the breeding pond, etc., for breeding fish, shrimp, etc., and the water contains rich nitrogen compounds, phosphates, carbohydrates, proteins, baits and feces of fish, shrimp, etc., that is, the water in the pond 20 contains rich nutrients and organic matter. Among them, the pond 20 not only includes a pool with a large water area, such as a naturally formed pond, an artificially constructed open-air large pond, etc., but also includes a breeding pond with a smaller water area, such as a fish tank, a hatching pond, a juvenile fish breeding pond, etc.

[0038] The inlet of the treatment tank 1 is used to communicate with the pond 20, so that the eutrophic water in the pond 20 can be introduced into the treatment tank 1, so as to treat the water in the treatment tank 1. The air outlet of the air pump 2 is arranged in the treatment tank 1, and is used to pump gas into the water in the treatment tank 1 to form foam on the surface of the water. After the air pump 2 pumps gas into the water, a plurality of bubbles will be formed in the water, so that the soluble organic matter such as debris and protein in the water can adhere to the bubbles. The bubbles are large in volume and light in weight, and are easy to carry debris, protein, etc. in the water and gradually rise to the water surface. A large number of bubbles rise to the water surface to form foam, so that the soluble organic matter such as debris and protein in the water can be gathered on the water surface.

[0039] The first collecting chamber 311 of the drainage member 31 in the drainage assembly 3 is connected to the outlet of the treatment tank 1, and is used to collect water and foam drawn from the treatment tank 1, so that the water separated from soluble organic matter such as debris and protein and the foam carrying soluble organic matter such as debris and protein can be introduced into the first collecting chamber 311. The drainage member 31 also includes a drainage port 312, which is connected to the first collecting chamber 311 to drain the water separated from soluble organic matter such as debris and protein in the first collecting chamber 311 back to the pond 20, so that the water in the pond 20 used for aquaculture can be recycled, which is beneficial to the healthy development of aquaculture in the pond 20.

[0040] The foam collecting piece 41 in the foam drainage component 4 is arranged above the drainage piece 31, and the second collecting chamber 411 of the foam collecting piece 41 is connected with the first collecting chamber 311, and is used to collect foam, so that the foam drawn out from the treatment tank 1 can be collected in the second collecting chamber 411 after being collected to a certain amount in the first collecting chamber 311, and can be discharged through the foam discharge port 412 connected with the second collecting chamber 411, such as discharged to a septic tank, a foam treatment tank or other equipment for convenient treatment of soluble organic matter such as debris and protein carried by the foam. Compared with separately setting a drainage outlet and a foam discharge outlet on the treatment tank 1, the drainage structure is directly connected to the drainage outlet, and the foam discharge structure is connected to the foam discharge outlet on the treatment tank 1, so that the water separated from the soluble organic matter such as debris and protein and the foam carrying the soluble organic matter such as debris and protein are discharged through different pipelines respectively. The foam collecting member 41 in the above-mentioned foam discharge component 4 is arranged above the drainage member 31 in the return water component 3, and the second collecting chamber 411 in the foam discharge component 4 is connected to the first collecting chamber 311 in the return water component 3, which can not only make the water discharged from the treatment tank 1 A small amount of bubbles in the water introduced into the first collecting chamber 311 by the tank 1 gradually rise to the water surface during the flow, so that the content of debris, protein, etc. in the water is lower. It can also make a small amount of water in the foam introduced into the first collecting chamber 311 by the treatment tank 1 gradually drop into the water during the flow, thereby reducing the water content in the foam, so that as much water as possible can be discharged back into the pond 20 after treatment. At the same time, the foam discharge component 4 and the water return component 3 share a set of pipes to be connected to the treatment tank 1, which effectively reduces the space occupied by the foam discharge component 4 and the water return component 3, reduces the volume of the tailwater treatment device 10, and reduces the cost.

[0041] The above-mentioned drain outlet 312 can have multiple implementation methods. In one possible implementation method, the drain outlet 312 can include a plurality of small holes arranged on the drain member 31. The plurality of small holes are arranged in an array on the drain member 31, so that the water in the first collecting chamber 311 can spray a plurality of thinner water columns into the pond 20 through the plurality of small holes, thereby increasing the contact area between water and air, and increasing the probability of dissolved oxygen in the water during the process of being discharged from the first collecting chamber 311 into the pond 20, thereby increasing the dissolved oxygen content in the pond 20 and facilitating the breeding of the pond 20.

[0042] Among them, when the drain outlet 312 includes a plurality of small holes, the aperture of the small holes can be greater than 0 mm and less than or equal to 10 mm. Thus, the small-aperture drainage holes can not only make the water spray distance farther, so that the water can be in contact with the air for a longer time during the process of being discharged from the first collecting chamber 311 to the pond 20, further increasing the probability of dissolved oxygen in the water, thereby increasing the dissolved oxygen content of the pond 20; it can also make it difficult for bubbles in the water to be discharged through the small holes, further reducing the content of debris, protein, etc. in the water discharged into the pond 20.

[0043] Exemplarily, the diameter of the small hole may be 3 mm, 5 mm, 8 mm, 10 mm, etc., which is not limited here.

[0044] In addition, the small hole can be any one of a circular hole, a square hole, a triangular hole, an elliptical hole, etc., which is not limited here.

[0045] In another possible implementation, the drain port 312 may include a long slot hole extending in a horizontal direction, so that water can be discharged from the first collecting chamber 311 to the pond 20 more quickly.

[0046] Optionally, the water drain 312 includes a plurality of filter holes configured to allow water to pass through and prevent foam from passing through.

[0047] It should be explained that the above-mentioned filter holes are configured to allow water to pass through and prevent foam from passing through, which means that water can be discharged into the pond 20 through the drain port 312 , but foam cannot be easily discharged into the pond 20 through the drain port 312 .

[0048] In this way, bubbles in the water can be effectively prevented from being discharged into the pond 20 through the drain port 312, further reducing the content of soluble organic matter such as debris and protein in the water discharged into the pond 20, so that the water discharged from the first collecting chamber 311 is more conducive to the aquaculture in the pond 20.

[0049] Among them, the filter hole can have a variety of implementation methods, for example, a filter plate can be set at the drain outlet 312, and a plurality of small holes can be arranged in an array on the filter plate, and the aperture of the small holes can be 3mm, 4mm, 5mm, 8mm, etc.; or, a plurality of small holes can be directly opened on the drain component 31, and the aperture of the small holes can be 3mm, 4mm, 5mm, 8mm, etc.; of course, the filter hole can also be implemented in other ways, which are not limited here.

[0050] The drain outlet 312 can have various positions on the drain member 31. In some embodiments, the drain outlet 312 can be set at the bottom of the drain member 31, that is, the drain outlet 312 can be connected to the bottom of the first collecting chamber 311, so that the water drawn out from the treatment tank 1 can flow into the first collecting chamber 311 and then be discharged into the pond 20 through the drain outlet 312, thereby improving the efficiency of discharging the water in the treatment tank 1 back into the pond 20.

[0051] In other embodiments, the drain port 312 is disposed between the top and the bottom of the drain member 31 , and the angle between the drain direction of the drain port 312 and the vertical direction is greater than 0° and less than or equal to 90°.

[0052] Thus, when the water in the first collecting chamber 311 is discharged into the pond 20 through the drain port 312, the water can be discharged into the pond 20 along a parabolic path in the air. On the one hand, the exposure time of the water discharged into the pond 20 in the air can be increased, the probability of oxygen dissolving in the water is increased, and the dissolved oxygen content of the water in the pond 20 is increased, which is beneficial to the aquaculture in the pond 20; on the other hand, when the water falls into the pond 20, an angle can be formed between the water and the liquid surface of the pond 20, so that when the water falls into the pond 20, it can push the original water in the pond 20 to flow in other directions, thereby enabling the water in the pond 20 to flow, and also increasing the probability of oxygen dissolving in the water in the pond 20, thereby improving the water environment in the pond 20 and facilitating the healthy development of the aquaculture in the pond 20.

[0053] Among them, the angle between the drainage direction of the drain outlet 312 and the vertical direction is greater than 0° and less than or equal to 90°. For example, the angle between the drainage direction of the drain outlet 312 and the vertical direction can be any angle of 10°, 45°, 60°, 90°, etc., and the drainage direction of the drain outlet 312 can be obliquely downward or in the horizontal direction, which is not limited here.

[0054] There are many ways to implement the water in the treatment tank 1 being introduced into the first collecting chamber 311 from the treatment tank 1. For example, in some embodiments, the position of the treatment tank 1 may be higher than the position of the water return and drainage assembly 3, so that the water in the treatment tank 1 can automatically flow into the first collecting chamber 311 under the action of gravity, so that the structure of the tailwater treatment device 10 can be relatively simple and easy to implement.

[0055] In other embodiments, Figure 1-Figure 4 As shown, the drainage assembly 3 may include a drainage pump 32, which is used to pump water in the treatment tank 1 into the first collecting chamber 311, and the drainage pump 32 is configured to make the liquid level in the first collecting chamber 311 higher than the drain port 312 and lower than the second collecting chamber 411.

[0056] Therefore, the flow rate and water pressure of water flowing from the treatment tank 1 to the first collecting chamber 311 can be controlled by a water pump to control the liquid level of water in the first collecting chamber 311, and there is no need to consider the height of the water level in the treatment tank 1 and the water level in the first collecting chamber 311, which facilitates the placement of the treatment tank 1.

[0057] In addition, the drain pump 32 is configured to make the liquid level in the first collection chamber 311 higher than the drain port 312 and lower than the second collection chamber 411, so that the water level in the first collection chamber 311 can be higher than the drain port 312, so that the water in the first collection chamber 311 can be discharged more promptly. At the same time, it can also prevent the water drawn out from the treatment tank 1 from flowing into the second collection chamber 411, thereby avoiding the water from being discharged from the foam discharge port 412 due to the water level being higher than the second collection chamber 411.

[0058] The drainage pump 32 may be any one of a centrifugal pump, a submersible pump, an axial flow pump, a screw pump, etc., which is not limited here.

[0059] Alternatively, if Figure 2-Figure 4 As shown, the foam discharge port 412 is lower than the connection point between the second collecting chamber 411 and the first collecting chamber 311 .

[0060] It should be explained that the connecting point between the second collecting chamber 411 and the first collecting chamber 311 is the inlet of the second collecting chamber 411 .

[0061] Therefore, the foam in the second collecting chamber 411 can automatically flow to the foam discharge port 412 under the action of gravity and be discharged from the foam discharge port 412, so that the structure of the foam discharge component 4 is relatively simple and easy to implement.

[0062] Among them, the foam outlet 412 is lower than the connection point between the second collection chamber 411 and the first collection chamber 311, and there are many ways to implement it. In one possible implementation, the second collection chamber 411 can be a cavity extending in the horizontal direction, and the second collection chamber 411 has a first end and a second end opposite to each other in the horizontal direction, and the first end is inclined toward the direction close to the first collection chamber 311, and the foam outlet 412 is arranged on the first end, and the second end is connected with the first collection chamber 311 through a connecting piece. Therefore, after the foam in the first collection chamber 311 is collected to the second end of the second collection chamber 411 through the connecting piece, it can automatically flow to the first end along the cavity wall of the second collection chamber 411, and be discharged through the foam outlet 412 arranged on the first end, and only one end of the foam collection piece 41 needs to be inclined, which is easy to manufacture and implement.

[0063] In another possible implementation, a connecting piece is provided on one side of the foam collecting piece 41, so that one side of the second collecting chamber 411 is connected to the first collecting chamber 311 through the connecting piece, and the foam discharge outlet 412 is provided at the bottom of the foam collecting piece 41, that is, the foam discharge outlet 412 is located at the bottom of the second collecting chamber 411, and the connection point between the second collecting chamber 411 and the connecting piece is higher than the foam discharge outlet 412, so that after the foam is collected from the first collecting chamber 311 to the second collecting chamber 411 through the connecting piece, it can be discharged through the foam discharge outlet 412 located at the bottom of the second collecting chamber 411, so that the foam can be discharged in time.

[0064] Among them, the foam outlet 412 is arranged at the lowest position at the bottom of the second collection chamber 411. For example, when the foam outlet 412 is arranged at the middle position of the bottom of the second collection chamber 411, the surface where the bottom of the second collection chamber 411 is located can be a conical surface, and the foam outlet 412 is arranged at the lowest point of the conical surface.

[0065] In some embodiments, Figure 2-Figure 4 As shown, the drainage component 31 and the foam collecting component 41 are both tubular structures extending in the horizontal direction, and both ends of the drainage component 31 are closed, and both ends of the foam collecting component 41 are connected to the drainage component 31 through the connecting pipe 5, that is, the tube cavity of the drainage component 31 can form a first collecting cavity 311, and the tube cavity of the foam collecting component 41 can form a second collecting cavity 411, and the second collecting cavity 411 can be connected to the first collecting cavity 311 through the connecting pipe 5.

[0066] Thus, the structures of the drain piece 31 and the foam collecting piece 41 can be made roughly the same, making the structures of the drain piece 31 and the foam collecting piece 41 simple and easy to implement; and the two ends of the foam collecting piece 41 are respectively connected to the drain piece 31 through the connecting pipe 5, which can make the connection between the foam collecting piece 41 and the drain piece 31 simple. At the same time, there is no need to additionally close the two ends of the foam collecting piece 41, thereby reducing the difficulty of manufacturing the drain piece 31 and the foam collecting piece 41.

[0067] The cross-sectional shape of the drainage member 31 can be circular, square, or trapezoidal, which is not limited here. The cross-sectional shape of the foam collecting member 41 can be circular, square, or trapezoidal, which is not limited here.

[0068] In addition, when the cross-sectional area of ​​the drainage member 31 is larger than the cross-sectional area of ​​the foam collecting member 41, and the length of the drainage member 31 is longer than the length of the foam collecting member 41, the volume of the first collecting chamber 311 is larger than the volume of the second collecting chamber 411, so that the first collecting chamber 311 can contain more water. When the drainage port 312 includes a plurality of small holes, the plurality of small holes can be arranged along the length direction of the drainage member 31, so that the water discharged from the drainage port 312 can be sprayed into a larger area of ​​the pond 20, so that the content of debris, protein, etc. in the water in a larger area of ​​the pond 20 can be lower, and the water in a larger area of ​​the pond 20 can have more dissolved oxygen.

[0069] Of course, the drainage member 31 may also be a can-shaped structure, and the foam collecting member 41 may also be a can-shaped structure, which is not limited here.

[0070] The above-mentioned second collecting chamber 411 is connected to the first collecting chamber 311 through the connecting tube 5. The number of connecting tubes 5 can be multiple, and the multiple connecting tubes 5 can be arranged in sequence along the length direction of the foam collecting piece 41 to increase the speed of foam collecting from the first collecting chamber 311 to the second collecting chamber 411.

[0071] like Figure 2 , Figure 5 and Figure 6 As shown, the foam discharge component 4 may also include a foam discharge pipe 42, which is connected to the foam discharge outlet 412. The outlet of the foam discharge pipe 42 may extend to the septic tank 6, the foam treatment tank and other equipment for collecting and treating foam, and the outlet of the foam discharge pipe 42 may be lower than the foam discharge outlet 412, that is, the foam discharge pipe 42 may be gradually lowered from the foam discharge outlet 412 toward the septic tank 6, the foam treatment tank and other equipment for collecting and treating foam, so that the foam automatically flows from the foam discharge outlet 412 along the foam discharge pipe 42 to the septic tank 6, the foam treatment tank and other equipment for collecting and treating foam under the action of gravity.

[0072] In some embodiments, Figure 5 and Figure 6 As shown, the tailwater treatment device 10 includes a stratification component 7, which is arranged in the treatment tank 1 and is used to stratify the water introduced into the treatment tank 1 to form a solid-liquid mixed layer and a water layer. The air pump 2 is used to pump gas into the water layer to form a foam layer on the surface of the water layer.

[0073] It needs to be explained that the above-mentioned stratification component 7 is used to stratify the water introduced into the treatment tank 1, which means that the stratification component 7 is used to stratify the aquaculture tail water to be treated introduced from the pond 20 into the treatment tank 1, so that solid pollutants such as bait and feces are relatively concentrated together to obtain a solid-liquid mixed layer containing solid pollutants such as bait and feces and a water layer from which most of the bait, feces, etc. are separated.

[0074] Thus, the water to be treated in the pond 20 can be treated by stratification in the treatment tank 1, so that solid pollutants such as bait and feces in the water are precipitated to form a solid-liquid mixed layer, and the water from which solid pollutants such as bait and feces are separated forms a water layer.

[0075] In addition, gas is pumped into the water layer by the air pump 2 to generate multiple bubbles in the water layer, so that the debris, protein and other soluble organic matter in the water from which the bait, feces, etc. are separated adhere to the bubbles, so as to form a foam layer carrying debris, protein and other soluble organic matter on the surface of the water layer, thereby separating the debris, protein and other soluble organic matter in the water, so that the water discharged from the treatment tank 1 to the drainage member 31 and finally to the pond 20 is more suitable for the breeding of the pond 20, and is further conducive to the healthy development of the pond 20.

[0076] At the same time, a layered component 7 and an air pump 2 are simultaneously arranged on the treatment tank 1, so that the water introduced into the treatment tank 1 from the pond 20 can collect the solid pollutants such as bait and feces and soluble organic matter such as debris and protein in the water in the treatment tank 1. This not only facilitates the separation of solid pollutants such as bait and feces and soluble organic matter such as debris and protein from the water, but also, compared with the structure that can collect solid pollutants such as bait and feces in the water, and the structure that can collect soluble organic matter such as debris and protein on the surface of the water, which are respectively arranged in two sets of treatment tanks 1, it can also effectively reduce the occupied space of the tailwater treatment device 10, simplify the structure of the tailwater treatment device 10, reduce the difficulty of manufacturing the tailwater treatment device 10, and save costs.

[0077] The treatment tank 1 can be a vertical tank or a horizontal tank, which is not limited here. The material of the treatment tank 1 can be any one of enamel, polypropylene, fiberglass, etc., which is not limited here.

[0078] In addition, the air pump 2 is used to pump gas into the water layer. The air outlet of the air pump 2 can be set in the water layer. The air pump 2 can be set on the outside of the treatment tank 1, or the air pump 2 can be set on the inner wall of the treatment tank 1. The air pump 2 can also be set in the area where the water layer is located in the treatment tank 1, such as, set on the upper side of the layered component 7, which is not limited here.

[0079] The above-mentioned layered component 7 has multiple implementation methods. In one possible implementation method, the layered component 7 may include a primary sedimentation tank and a secondary sedimentation tank arranged side by side in the treatment tank 1. The primary sedimentation tank and the secondary sedimentation tank both include a tank body and a cone arranged on the lower side of the tank body. A sewage outlet is arranged at the bottom of the cone. The tank bodies of the primary sedimentation tank and the secondary sedimentation tank are connected through a through-wall pipe. A bent pipe is fixedly connected to the end of the through-wall pipe in the primary sedimentation tank, and a movable plug-in pipe is arranged at the bent pipe. A water inlet is opened near the bottom of the tank body of the primary sedimentation tank, which can be connected to the pond 20 through the water inlet pipe. A water outlet is opened near the top of the tank body of the secondary sedimentation tank.

[0080] Thus, after the water in the pond 20 enters the primary sedimentation tank through the water inlet, since the bottom of the primary sedimentation tank is a cone, a rotating vortex will be formed at the bottom of the primary sedimentation tank to settle the bait, feces, etc. at the bottom of the cone, and can be discharged through the sewage outlet. When the water level in the primary sedimentation tank reaches the position where the water inlet hole is opened on the movable plug-in tube, the water of the separated part of the bait, feces, etc. in the primary sedimentation tank will flow into the movable plug-in tube from the water inlet hole and then flow into the secondary sedimentation tank through the wall-penetrating pipe, and form a rotating vortex at the bottom of the secondary sedimentation tank, fixing the bait, feces, etc. in the water and settling them at the bottom of the cone, and discharge them through the sewage outlet. When the water level reaches the height of the water outlet, the water of the separated bait and feces in the upper layer can be pumped into gas through the air pump 2 for aeration, and the water layer and the foam layer on the surface of the water layer are discharged to the first collecting chamber 311 in the water return and drainage component 3. The structure is simple and easy to manufacture and implement.

[0081] In another possible implementation of the layered component 7, as Figure 5 and Figure 6 As shown, the layered component 7 may include multiple funnels, which are arranged in sequence along the vertical direction. The inlet of the treatment tank 1 is connected to the interior of the uppermost funnel, and the water outlet direction of the funnel located on the upper side of the two adjacent funnels is set toward the inner wall of the funnel located on the lower side.

[0082] Thus, after the water in the pond 20 flows into the uppermost funnel through the inlet of the treatment tank 1, the water can rotate along the inner wall of the funnel to the lower end of the uppermost funnel, and can flow through the outlet of the uppermost funnel to the inner wall of the adjacent lower funnel, and can continue to rotate and flow downward along the inner wall of the adjacent lower funnel. In this way, the water rotates and flows downward along the inner walls of multiple funnels in turn, so that under the action of centrifugal force, heavier baits, feces, etc. rotate faster and faster, and fall from multiple funnels first, thereby forming a solid-liquid mixed layer containing more baits, feces, etc. in the bottom area of ​​the treatment tank 1, realizing stratified treatment of the water introduced into the treatment tank 1 from the pond 20, and multiple funnels are arranged in sequence along the vertical direction, which can effectively reduce the occupied space along the horizontal direction, reduce the size of the treatment tank 1 along the horizontal direction, and thus reduce the occupied area of ​​the tailwater treatment device 10 along the horizontal direction.

[0083] The number of the funnels may be two, three or more, which is not limited here.

[0084] The water outlet of the funnel located on the upper side of the two adjacent funnels is arranged in a direction toward the inner wall of the funnel located on the lower side. The water outlet of the upper funnel can be arranged at the lower end of the outer peripheral wall of the funnel; or, a water outlet pipe inclined toward the inner wall of the lower funnel is arranged at the bottom of the upper funnel, and the water outlet is arranged at the end of the water outlet pipe away from the upper funnel; of course, the water outlet direction of the water outlet of the funnel located on the upper side of the two adjacent funnels can be arranged toward the inner wall of the funnel located on the lower side in other ways, which are not limited here.

[0085] Alternatively, if Figure 5 and Figure 6 As shown, the outlet of the treatment tank 1 includes a first outlet 11 , which is communicated with the water layer and is located above the air outlet of the air pump 2 .

[0086] Thus, the bubbles in the water layer can flow more fully through the first outlet 11 to the first collecting chamber 311 in the water return and drainage assembly 3 .

[0087] Among them, the first outlet 11 can be connected to the drainage member 31 in the return drainage assembly 3 through a water pipe, and is connected to the first collecting chamber 311, and a drainage pump can be connected to the water pipe to facilitate the control of the water pressure and flow rate of the water pumped into the first collecting chamber 311 by the treatment tank 1.

[0088] In addition, the air outlet of the air pump 2 can be located near the top of the stratification component 7 and can be located in the middle or lower area of ​​the water layer, and the first outlet 11 can be located in the area near the top of the treatment tank 1 and can be close to the upper part of the water layer, so that most of the bubbles in the water can flow into the first collecting chamber 311 through the first outlet 11, and it is not easy to introduce water that has not been stratified into the first collecting chamber 311.

[0089] In addition, the air outlet of the air pump 2 can also be connected to an air outlet pipe, the end of the air outlet pipe is closed, and a plurality of small holes can be provided on the outer peripheral wall of the air outlet pipe so that a plurality of bubbles can be formed when the gas enters the water layer, thereby improving the efficiency of collecting soluble organic matter such as debris and protein to the surface of the water layer.

[0090] Alternatively, if Figure 5 and Figure 6 As shown, the outlet of the treatment tank 1 further includes a second outlet 12, and the second outlet 12 is communicated with the foam layer.

[0091] Thus, the foam layer on the surface of the water layer and the water in part of the water layer can flow into the first collecting chamber 311 through the second outlet 12 and then be collected into the second collecting chamber 411 and discharged, so that the water led from the pond 20 to the treatment tank 1 can be discharged after treatment, and the water in the pond 20 can be introduced into the treatment tank 1 in turn for treatment, which effectively promotes the healthy development of the aquaculture in the pond 20.

[0092] The second outlet 12 may be disposed at the top of the treatment tank 1 , and may be connected to the drainage member 31 in the drainage assembly 3 through a pipeline.

[0093] In some embodiments, Figure 5 and Figure 6 As shown, the tailwater treatment device 10 may also include a plurality of aerators 8, which are arranged in the pond 20. On the one hand, the oxygen content of the water in the pond 20 can be effectively increased, which is beneficial to the production of fish, shrimp, etc. cultured in the pond 20; on the other hand, the water in the pond 20 can be made to flow, so that the water in the pond 20 can be introduced into the treatment tank 1 for treatment, thereby realizing the treatment of the water in the entire pond 20, which is more beneficial to the healthy development of the aquaculture in the pond 20.

[0094] The number of the oxygenators 8 may be two, three or more, which is not limited here.

[0095] The aerator 8 can be at least one of an impeller aerator, a waterwheel aerator, an aerator disk, a surge machine, an inflatable aerator, a jet aerator, etc., and is not limited here.

[0096] Exemplarily, when the number of aerators 8 is two or four, and the aerators 8 are waterwheel-type aerators 8, the two or four aerators 8 can be arranged opposite to each other along the diagonal of the pond 20. On the one hand, the water in the pond 20 can be effectively made to flow in the pond 20. On the other hand, a vortex can be formed in the central area of ​​the pond 20 to collect bait, feces, etc. into the vortex. At this time, the water in the vortex can be introduced into the treatment tank 1 for treatment, which effectively improves the treatment efficiency of the water in the pond 20.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tailwater treatment device for treating water in a pond, characterized in that: include: a treatment tank, wherein the inlet of the treatment tank is used to communicate with the pond; an air pump, the air outlet of the air pump being arranged in the treatment tank, for pumping gas into the water in the treatment tank to form foam on the surface of the water; A water return and drainage assembly, the water return and drainage assembly comprising a drainage member, the drainage member having a first collecting chamber, the first collecting chamber being communicated with the outlet of the treatment tank and used to collect water and foam drawn from the treatment tank, the drainage member comprising a drainage port, the drainage port being communicated with the first collecting chamber, so as to discharge the water in the first collecting chamber to the pond; A foam discharge component, the foam discharge component comprising a foam collecting member, the foam collecting member being arranged above the water discharge member, the foam collecting member having a second collecting cavity, the second collecting cavity being communicated with the first collecting cavity and being used for collecting the foam, and the foam collecting member being provided with a foam discharge outlet communicated with the second collecting cavity; The foam discharge port is lower than the connecting point between the second collecting chamber and the first collecting chamber, and the connecting point between the second collecting chamber and the first collecting chamber refers to the inlet of the second collecting chamber; The drainage member and the foam collecting member are both tubular structures extending in the horizontal direction, and both ends of the drainage member are closed. At least one end of the foam collecting member is connected to the drainage member through a connecting pipe.

2. The tailwater treatment device according to claim 1, characterized in that: The water drain port includes a plurality of filter holes configured to allow the water to pass therethrough and prevent the bubbles from passing therethrough.

3. The tailwater treatment device according to claim 1, characterized in that: The drain outlet is arranged between the top and the bottom of the drain member, and the angle between the drain direction of the drain outlet and the vertical direction is greater than 0° and less than or equal to 90°.

4. The tailwater treatment device according to claim 1, characterized in that: The drainage assembly further includes a drainage pump, which is used to pump the water in the treatment tank into the first collecting chamber, and the drainage pump is configured to make the liquid level in the first collecting chamber higher than the drain port and lower than the second collecting chamber.

5. The tailwater treatment device according to any one of claims 1 to 4, characterized in that: The tail water treatment device includes a stratification component, which is arranged in the treatment tank and is used to stratify the water introduced into the treatment tank to form a solid-liquid mixed layer and a water layer. The air pump is used to pump gas into the water layer to form a foam layer on the surface of the water layer.

6. The tailwater treatment device according to claim 5, characterized in that: The outlet of the processing tank includes a first outlet, which is communicated with the water layer and is located above the air outlet of the air pump.

7. The tailwater treatment device according to claim 5, characterized in that: The outlet of the treatment tank further includes a second outlet, and the second outlet is in communication with the foam layer.

8. The tailwater treatment device according to claim 5, characterized in that: The layered component includes multiple funnels, which are arranged in sequence along the vertical direction. The inlet of the treatment tank is connected to the interior of the topmost funnel, and the water outlet of the funnel located on the upper side of the two adjacent funnels is arranged toward the inner wall of the funnel located on the lower side.

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