A device and method for assisting drainage of sediments at the bottom of a rectangular high-position aquaculture pond

Abstract

The present invention discloses a drainage aid device for sediments at the bottom of a rectangular high-position breeding pond, relates to aquatic product breeding technology, and solves the technical problem that the current rectangular high-position breeding pond is not convenient for removing sediments, resulting in sludge easily forming at the bottom of the pond. It includes a sludge extraction component, used to extract the mixture of sediment and water from the bottom of the breeding pond; a separation barrel, used to separate the mixture extracted from the bottom of the breeding pond by a rotary sedimentation separation method; a transfer component, used to transport the mixture to the separation barrel, and drive the mixture in the separation barrel to rotate; a discharge component, used to discharge water and sediments from the separation barrel, and re-discharge the discharged water into the breeding pond. The present invention also discloses a drainage aid method for sediments at the bottom of a rectangular high-position breeding pond. The present invention realizes the removal of the mixture in the breeding pond, and has a better separation effect, a faster separation speed, and a higher efficiency, thereby effectively helping the growth of fish and reducing the occurrence of diseases.

Description

Technical Field

[0001] The invention relates to aquatic product breeding technology, and more specifically, to a drainage aid device and method for sediments at the bottom of a rectangular high-position breeding pond. Background Art

[0002] Compared with circular high-position breeding ponds, rectangular high-position breeding ponds have the advantages of high ground area utilization rate and convenient planning, so they are widely used in contiguous breeding of aquaculture. During the breeding process, the stocking density of fish in rectangular high-position breeding ponds is large, so more feed is needed, which will cause the residual bait, feces and other sediments produced during the breeding process to sink to the bottom of the water. As time goes by, these sediments will accumulate more and more, and they will continue to decompose and rot, and eventually a thick layer of silt will form in the breeding pond. Moreover, these sediments will consume oxygen and produce toxic and harmful substances and pathogens during the decay process. Therefore, it is necessary to drain the water at the bottom of the breeding pond regularly, and take away some sediments to reduce the formation rate of silt.

[0003] However, unlike the circular high-position breeding pond, the rectangular high-position breeding pond can not make the bottom of the pond into a funnel shape, so that the centripetal force generated by the pool water circulation can be used to concentrate the sediments at the bottom of the funnel and effectively discharge them out of the pond. However, in order to achieve drainage and sewage discharge of the rectangular high-position breeding pond, the bottom of the rectangular high-position breeding pond is generally made into an inclined shape, and it is inclined from the water inlet to the water outlet. When there is no water in the breeding pond, it is more convenient to clean the bottom of the pond. However, under the conditions of breeding, it is impossible to achieve the effect of better removing the bottom sediments like the circular high-position pond. It is precisely because it is not convenient to clean the bottom of the rectangular high-position breeding pond during the breeding process that the rectangular high-position breeding pond is more likely to form silt during the breeding process. And as the breeding time goes by, the sediments at the bottom of the pond will increase, and the silt will also be more and thicker, which will seriously affect the yield of fry. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a drainage device and method for the bottom sediment of a rectangular high-level breeding pond in view of the shortcomings of the prior art, so as to realize the removal of the mixture in the breeding pond, and the operation is convenient and the removal effect is good, thereby effectively helping the growth of fish and reducing the occurrence of diseases.

[0005] The device for assisting the drainage of sediments at the bottom of a rectangular high-position aquaculture pond according to the present invention comprises:

[0006] A silt extraction component is used to extract a mixture of sediment and water from the bottom of the aquaculture pond;

[0007] A separation barrel, used for separating the mixture extracted from the bottom of the culture pond by a rotary sedimentation separation method;

[0008] A transfer assembly, used for transferring the mixture to a separation barrel and driving the mixture in the separation barrel to rotate through the mixture;

[0009] A discharge assembly, used to discharge the water and sediment in the separation barrel into the separation barrel, and to discharge the discharged water back into the breeding pond;

[0010] The oxygenation component is used to perform oxygenation treatment on the water in the separation barrel and make the water and the oxygen-rich gas form a water-gas mixture to increase the precipitation speed of the sediment.

[0011] As a further improvement, the transfer assembly includes an outer ring tube and multiple slit tubes; the outer ring tube is installed on the outer wall of the separation barrel, the outer ring tube is connected to the output end of the sludge extraction assembly, the multiple slit tubes are evenly installed in the separation barrel, and the multiple slit tubes are all connected to the outer ring tube; the slit tubes are opened on the side walls, and the slits on all the slit tubes are facing the same clockwise direction.

[0012] Furthermore, the pipe seam runs through both ends of the strip seam pipe.

[0013] Furthermore, the slit pipe is connected to the outer ring pipe through an elbow pipe that passes through the separation barrel and the outer ring pipe in sequence.

[0014] Furthermore, the oxygenation assembly includes an aerator and a plurality of microporous tubes; the plurality of microporous tubes are evenly installed at the bottom of the separation barrel, the microporous tubes are provided with a plurality of air holes, and the microporous tubes are connected to the output end of the aerator.

[0015] Furthermore, a sewage outlet is provided at the bottom of the separation barrel, a funnel is installed above the sewage outlet, a sedimentation chamber is provided between the funnel and the separation barrel, and an overflow port is provided above the sedimentation chamber; a water separation layer is provided above the overflow port, and a sediment separation layer is provided below the overflow port.

[0016] Furthermore, the discharge assembly includes a water outlet pipe and a sewage pipe; the water outlet pipe is installed above the separation barrel, and one end of the water outlet pipe extends into the separation barrel, and the other end of the water outlet pipe is connected to the breeding pond; the sewage pipe is installed below the separation barrel, and the sewage pipe is connected to the sewage outlet.

[0017] Furthermore, a bracket is installed below the separation barrel.

[0018] Furthermore, the sludge extraction assembly includes a submersible pump and a water inlet pipe; the submersible pump is arranged on the bottom of the breeding pond, the submersible pump is connected to one end of the water inlet pipe through a connecting pipe, and the other end of the water inlet pipe is connected to the outer ring pipe.

[0019] A method for assisting the drainage of sediments at the bottom of a rectangular high-level breeding pond comprises the following steps: extracting a mixture of water and sediments from the bottom of the breeding pond, and then separating the mixture by a rotary sedimentation separation method; and in the separation process, performing an oxygenation treatment on the mixture so that the water in the mixture and the oxygen-rich gas form a water-gas mixture to increase the sedimentation rate of the sediments; after the separation of the mixture is completed, the separated water is discharged back into the breeding pond.

[0020] Beneficial Effects

[0021] The advantages of the present invention are:

[0022] 1. Through the arrangement of the silt extraction component, separation barrel, transfer component, and discharge component, water circulation can be generated between the separation barrel and the breeding pond, which facilitates the discharge of sediments in the breeding pond, thereby achieving the purpose of cleaning the breeding pond. Moreover, when separating the mixture of water and sediment extracted from the breeding pond, rotary sedimentation separation is adopted, which makes the separation effect better, the separation speed faster, and the efficiency higher, thereby effectively helping the growth of fish and reducing the occurrence of diseases.

[0023] 2. The oxygenation component installed at the bottom of the separation barrel can effectively oxygenate the water in the separation barrel. At the same time, the combination of oxygen-rich gas and water can make the sediment settle more quickly, further improving the sedimentation effect.

[0024] 3. By opening a pipe slit at an appropriate position on the slit pipe, the mixture transported to the separation barrel through the pipe slit can impact the original mixture in the separation barrel, thereby realizing the rotation of the mixture in the separation barrel. There is no need to set up an additional power device to drive the mixture in the separation barrel to rotate, which greatly reduces the design cost of the separation barrel and facilitates the promotion of the drainage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the drainage aid device of the present invention;

[0026] Figure 2 It is a schematic diagram of the connection structure of the outer ring pipe, the slotted pipe and the water inlet pipe of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the slotted tube of the present invention;

[0028] Figure 4 It is a schematic diagram of the outer structure of the separation barrel of the present invention.

[0029] Among them: 1-separation barrel, 2-outer ring pipe, 3-slit pipe, 4-pipe seam, 5-elbow pipe, 6-microporous pipe, 7-funnel, 8-overflow port, 9-sedimentation chamber, 10-outlet pipe, 11-drain pipe, 12-bracket, 13-inlet pipe. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the embodiments, but it does not constitute any limitation to the present invention. Any limited number of modifications made by anyone within the scope of the claims of the present invention are still within the scope of the claims of the present invention.

[0031] A method for assisting the drainage of sediments at the bottom of a rectangular high-level aquaculture pond, the method comprising extracting a mixture of water and sediments from the bottom of the aquaculture pond, and then separating the mixture by a rotary sedimentation separation method. Specifically, the rotary sedimentation separation method is to keep the mixture rotating when separating the mixture. Since the density of water is smaller than that of sediments, the water will be separated from the sediments under the action of centrifugal force, and the water will be located above the sediments, thereby achieving separation of the mixture. This separation method has good effect, faster separation speed, and higher efficiency.

[0032] During the separation process, the mixture is oxygenated so that the water in the mixture forms a water-gas mixture with the oxygen-rich gas to increase the precipitation rate of the sediment.

[0033] After the mixture is separated, the separated water is discharged back into the breeding pond to achieve water reuse and reduce the waste of water resources.

[0034] See also Figure 1-Figure 4 The present invention proposes a drainage aid device for sediments at the bottom of a rectangular high-level aquaculture pond, which is used to implement the above-mentioned drainage aid method. The drainage aid device includes a silt extraction component, a separation barrel 1, a transfer component, a discharge component and an oxygenation component. The input end of the silt extraction component is arranged in the bottom of the aquaculture pond, the transfer component is installed on the separation barrel 1, and the input end of the transfer component is connected to the output end of the silt extraction component, and the output end of the transfer component is connected to the separation barrel 1. An oxygenation component is installed at the bottom of the separation barrel 1, and a discharge component is installed at the end of the separation barrel 1.

[0035] Among them, the silt extraction component is used to extract the mixture of sediment and water in the bottom of the breeding pond, so as to remove the sediment in the bottom of the breeding pond.

[0036] The sludge extraction assembly includes a submersible pump and a water inlet pipe 13. The submersible pump is arranged on the bottom of the culture pond, and the submersible pump is connected to one end of the water inlet pipe 13 through a connecting pipe, and the other end of the water inlet pipe 13 is connected to the outer ring pipe 2. When in use, the submersible pump is placed on the lower side of the culture pond, so that the mixture in the culture pond can be effectively extracted.

[0037] The separation barrel 1 is used to separate the mixture extracted from the bottom of the culture pond by a rotary sedimentation separation method.

[0038] A sewage outlet is provided at the bottom of the separation barrel 1, a funnel 7 is installed above the sewage outlet, and a sedimentation chamber is provided between the funnel 7 and the separation barrel 1 for collecting sediment. An overflow port 8 is provided above the sedimentation chamber 9 so that the sediment in the sedimentation chamber 9 overflows into the funnel 7 for discharge.

[0039] The maximum outer diameter of the funnel 7 in this embodiment is about four fifths of the inner diameter of the separation barrel 1, and its upper opening is at the same height as the outer ring tube 2. The interval between the separation barrels 1 where the maximum outer diameter of the funnel 7 is located is the overflow port 8.

[0040] In this embodiment, the rotary sedimentation separation method is specifically to keep the mixture in the separation barrel 1 rotating when separating the mixture in the separation barrel 1. Since the density of water is smaller than that of sediment, the water will always remain in the upper layer of the separation barrel 1, while the sediment will settle to the bottom of the separation barrel 1 and enter the sedimentation chamber 9 or the funnel 7, thereby achieving separation of the mixture. This separation method has good effect, faster separation speed and higher efficiency.

[0041] The transfer assembly is used to transfer the mixture into the separation barrel 1 and drive the mixture in the separation barrel 1 to rotate through the mixture.

[0042] In this embodiment, the transfer assembly includes an outer ring pipe 2 and four slotted pipes 3. The outer ring pipe 2 is installed on the outer wall of the separation barrel 1, the outer ring pipe 2 is connected to the output end of the sludge extraction assembly, and the four slotted pipes 3 are evenly installed in the separation barrel 1, and the four slotted pipes 3 are all connected to the outer ring pipe 2, and the slotted pipes 3 are located above the outer ring pipe 2.

[0043] Specifically, the slit pipe 3 is connected to the outer ring pipe 2 through the elbow pipe 5 that passes through the separation barrel 1 and the outer ring pipe 2 in sequence, so that the mixture in the outer ring pipe 2 is evenly transported to the separation barrel 1 through the slit pipe 3. More specifically, a circular opening is provided on the side of the outer ring pipe 2 facing the separation barrel 1, and a circular opening is also provided on the side wall of the separation barrel 1. The circular opening on the outer ring pipe 2 is opposite to the circular opening on the separation barrel 1, and the diameters thereof are the same and together constitute the insertion hole of the elbow pipe 5. The elbow pipe 5 inserts its elbow part into the insertion hole from the separation barrel 1, so that the pool water can enter the separation barrel 1 from the outer ring pipe 2 through the slit pipe 3.

[0044] A pipe slit 4 is provided on the side wall of the slotted pipe 3, and the pipe slits 4 on all the slotted pipes 3 face the same clockwise direction. That is, the pipe slit 4 is located on either side of the slotted pipe 3 close to the axis of the separation barrel 1, and the axis rotation direction of the separation barrel 1 is taken as the clock direction, and all the pipe slits 4 face the clockwise direction or the counterclockwise direction, thereby ensuring that the mixture sprayed from the pipe slit 3 can drive the mixture in the separation barrel 1 to rotate.

[0045] Through such an arrangement, it can be ensured that when the mixture rushes out from the pipe slits 4, it will have an impact on the water in the separation barrel 1. And because all the pipe slits 4 are in the same clockwise direction, the water can rotate in the separation barrel 1, so as to separate the mixture better. Moreover, such a design makes it unnecessary to set up an additional power device in the separation barrel 1 to drive the mixture in the separation barrel 1 to rotate, which greatly reduces the design cost of the separation barrel 1 and facilitates the promotion of the drainage device.

[0046] Preferably, the pipe seam 4 runs through the slit pipe 3 to improve the uniformity of the mixture entering the separation barrel 1 .

[0047] The oxygenation component is used to perform oxygenation treatment on the water in the separation barrel 1, and at the same time, the oxygen-rich gas is combined with water to form a water-gas mixture, which can make the sediment settle more quickly.

[0048] Specifically, the oxygenation assembly includes an aerator and a plurality of microporous tubes 6. The plurality of microporous tubes 6 are evenly installed at the bottom of the separation barrel 1, and a plurality of air holes are opened on the microporous tubes 6, which are connected to the output end of the aerator.

[0049] When the aerator is started, the oxygen-rich gas enters the separation barrel 1 in the form of microbubbles through the microporous tube 6, and the microbubbles rise along the inside of the separation barrel 1. When they encounter the mixture sprayed from the pipe slit 4, the water and gas in the mixture will form a water-gas mixture, and its density becomes smaller than that of water. However, the centripetal force on the sediment at this time remains unchanged, but the buoyancy on it becomes smaller, which accelerates it to concentrate and sink to the bottom of the separation barrel 1, which is beneficial to the discharge of the sediment and also realizes the oxygenation of the water body.

[0050] The discharge assembly is used to discharge the water and sediment in the separation barrel 1 out of the separation barrel 1, and to discharge the discharged water back into the breeding pond.

[0051] Specifically, the discharge assembly includes a water outlet pipe 10 and a sewage pipe 11. The water outlet pipe 10 is installed above the separation barrel 1, and one end of the water outlet pipe 10 extends into the separation barrel 1, and the other end of the water outlet pipe 10 is connected to the breeding pond. It should be noted that a closing cover is provided above the separation barrel 1 of the present embodiment. When the separation barrel 1 is filled with the mixture, as the mixture continues to be injected, the water located in the upper layer of the separation barrel 1 will overflow through the water outlet pipe 10, and finally be re-injected into the breeding pond, so as to realize the reuse of water and reduce the waste of water resources. The sewage pipe 11 is installed below the separation barrel 1, and the sewage pipe 11 is connected to the sewage outlet, and is used to discharge the sediment separated from the separation barrel 1.

[0052] Preferably, a bracket 12 is installed below the separation barrel 1 to support the separation barrel 1 .

[0053] The working principle of the present invention is: when in use, the separation barrel 1 is placed on the edge of the culture pond, and the submersible pump is placed at the position with the greatest depth in the culture pond. Then the submersible pump and the oxygen pump are started at the same time. The mixture in the bottom of the culture pond is extracted by the submersible pump, and enters the separation barrel 1 through the connecting pipe, the water inlet pipe 13, the outer ring pipe 2, and the slit pipe 3. Since the opening of the pipe slit 4 of the slit pipe 3 is not facing the axis of the separation barrel 1, and all the pipe slits 4 are oriented in the same clockwise direction. When the mixture is sprayed out from the slit pipe 3, it can form a single clockwise impact on the mixture in the separation barrel 1, so that the mixture is rotated and separated. The oxygen-rich gas enters the separation barrel 1 through the microporous tube 6 and rises along the inside of the separation barrel 1. And when it encounters water in the mixture during the rising process, it can form a water-gas mixture with it, which is conducive to the separation of the mixture and the sinking of the sediment. The sunken sediment will be discharged through the funnel 7 and the sewage pipe 11. The separated water is located above the separation barrel 1 , and is discharged from the water outlet pipe 10 after the separation barrel 1 is filled with the mixture and continues to be filled.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A device for assisting the drainage of sediments at the bottom of a rectangular high-position aquaculture pond, characterized in that: include: A silt extraction component is used to extract a mixture of sediment and water from the bottom of the aquaculture pond; A separation barrel (1) is used to separate the mixture extracted from the bottom of the culture pond by a rotary sedimentation separation method; A transfer assembly, used to transfer the mixture to the separation barrel (1), and to drive the mixture in the separation barrel (1) to rotate through the mixture; A discharge assembly, used to discharge the separated water and sediment in the separation barrel (1) out of the separation barrel (1), and to discharge the discharged water back into the breeding pond; An oxygenation component, used for oxygenating the water in the separation barrel (1) and causing the water to form a water-gas mixture with oxygen-rich gas to increase the sedimentation rate of the sediment; The bottom of the separation barrel (1) is provided with a sewage outlet, a funnel (7) is installed above the sewage outlet, a sedimentation chamber (9) is provided between the funnel (7) and the separation barrel (1), and an overflow port (8) is provided above the sedimentation chamber (9); above the overflow port (8) is a water separation layer, and below the overflow port (8) is a sediment separation layer; The discharge assembly comprises a water outlet pipe (10) and a sewage pipe (11); the water outlet pipe (10) is installed above the separation barrel (1), and one end of the water outlet pipe (10) extends into the separation barrel (1), and the other end of the water outlet pipe (10) is connected to the culture pond; the sewage pipe (11) is installed below the separation barrel (1), and the sewage pipe (11) is connected to the sewage outlet.

2. The device for assisting drainage of sediments at the bottom of a rectangular elevated aquaculture pond according to claim 1, characterized in that: The transfer assembly comprises an outer ring tube (2) and a plurality of slit tubes (3); the outer ring tube (2) is installed on the outer wall of the separation barrel (1), the outer ring tube (2) is connected to the output end of the silt extraction assembly, the plurality of slit tubes (3) are evenly installed in the separation barrel (1), and the plurality of slit tubes (3) are all connected to the outer ring tube (2); a tube slit (4) is opened on the side wall of the slit tube (3), and the tube slits (4) on all the slit tubes (3) are oriented in the same clockwise direction.

3. The device for assisting drainage of sediments at the bottom of a rectangular elevated aquaculture pond according to claim 2, characterized in that: The pipe seam (4) passes through both ends of the strip seam pipe (3).

4. The device for assisting the drainage of sediments from the bottom of a rectangular high-position aquaculture pond according to claim 3, characterized in that: The slit pipe (3) is connected to the outer ring pipe (2) via an elbow pipe (5) which passes through the separation barrel (1) and the outer ring pipe (2) in sequence.

5. The device for assisting drainage of sediments at the bottom of a rectangular elevated aquaculture pond according to claim 1, characterized in that: The oxygenation assembly comprises an aerator and a plurality of microporous tubes (6); the plurality of microporous tubes (6) are evenly installed at the bottom of the separation barrel (1), the microporous tubes (6) are provided with a plurality of air holes, and the microporous tubes (6) are connected to the output end of the aerator.

6. The device for assisting drainage of sediments at the bottom of a rectangular elevated aquaculture pond according to claim 1, characterized in that: A bracket (12) is installed below the separation barrel (1).

7. The device for assisting the drainage of sediments at the bottom of a rectangular elevated aquaculture pond according to claim 2, characterized in that: The silt extraction assembly comprises a submersible pump and a water inlet pipe (13); the submersible pump is arranged on the bottom of the culture pond, the submersible pump is connected to one end of the water inlet pipe (13) via a connecting pipe, and the other end of the water inlet pipe (13) is connected to the outer ring pipe (2).

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