Fish manure separation device of aquaculture circulating water system

Abstract

The utility model discloses a fish manure separating device of an aquaculture circulating water system, which is used for separating and collecting fish manure while discharging sewage of an aquaculture barrel, the fish manure separating device comprises a collecting barrel, a water inlet pipe and a water drainage pipe, the top end of the water inlet pipe upwards penetrates through a water inlet hole and extends into the collecting barrel, and the water drainage pipe is arranged in the collecting barrel. The bottom end of the water inlet pipe is downwards arranged on the bottom wall of the breeding barrel, the top end of the water drainage pipe upwards penetrates through the water drainage hole and extends into the collecting barrel, a plurality of evenly-distributed excrement suction holes are formed in the pipe peripheral wall of the end, arranged on the bottom wall of the breeding barrel, of the water inlet pipe, and the top end of a pipe body, extending into the collecting barrel, of the water drainage pipe is higher than the top end of a pipe body, extending into the collecting barrel, of the water inlet pipe. The drainage pipe is higher than the water inlet pipe, so that fish manure is deposited at the bottom of the collecting barrel when water in the breeding barrel enters the collecting barrel from the water inlet pipe and is discharged from the drainage pipe, and the fish manure is separated and collected while pollution discharge of the breeding barrel is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture, in particular to a fish manure separation device for an aquaculture circulating water system. Background Technique

[0002] The sewage collection and fish manure collection of an aquaculture circulating water aquaculture barrel are the key to ensuring the water quality of the aquaculture system. Through the collection of sewage (mainly including fish manure and residual bait), the sewage treatment load of the system can be greatly reduced. At the same time, the collection of fish manure in the aquaculture barrel can also solve the problem of fish manure sampling in the scientific research experiment of fish digestibility. At present, the sewage collection of the circulating water aquaculture barrel is mainly through centralized sewage discharge of the main pipeline, and the sewage directly enters the water treatment system for treatment. It is impossible to collect sewage for each aquaculture barrel separately, so it is impossible to separate and collect fish manure in time; and due to the too long distance of the current sewage discharge main pipeline, it is easy to cause the loss of fish manure dissolution, and it is also impossible to complete the separation and collection of fish manure. At the same time, the problem of fish manure recovery is not considered in the current sewage treatment process of the circulating water aquaculture barrel. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fish manure separation device for an aquaculture circulating water system, which realizes the separation and collection of fish manure while discharging sewage from the aquaculture barrel, so as to solve the problem that the sewage treatment of the circulating water aquaculture barrel fails to separate and collect fish manure in time as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A fish manure separation device for an aquaculture circulating water system is used to realize the separation and collection of fish manure while discharging sewage from the aquaculture barrel. This fish manure separation device includes a collection barrel, a water inlet pipe and a drain pipe. The bottom wall of the collection barrel is respectively provided with a water inlet hole and a drain hole. The top end of the water inlet pipe extends upward through the water inlet hole into the collection barrel, and the bottom end of the water inlet pipe is placed downward on the bottom wall of the aquaculture barrel. The top end of the drain pipe extends upward through the drain hole into the collection barrel, and the bottom end of the drain pipe is connected downward to a drain port arranged on the bottom wall of the aquaculture barrel. A plurality of uniformly distributed manure suction holes are arranged on the peripheral wall of the pipe at the end of the water inlet pipe placed on the bottom wall of the aquaculture barrel. The height of the top end of the pipe body of the drain pipe extending into the collection barrel is higher than the height of the top end of the pipe body of the water inlet pipe extending into the collection barrel.

[0006] Preferably, an inner barrel is movably embedded in the collection barrel, and a separation cavity is reserved between the outer wall of the inner barrel and the inner wall of the collection barrel.

[0007] Preferably, the top end of the inner barrel is higher than the top end of the collection barrel. Water outlet holes are arranged on the barrel wall of the upper part of the inner barrel, and handles are oppositely arranged on the side walls of the inner barrel higher than the collection barrel.

[0008] Preferably, the collection bucket is a bucket body structure with an open top. The height of the collection bucket is 17 cm, and the inner diameter of the collection bucket is 25 cm.

[0009] Preferably, the top height of the pipe body of the drain pipe extending into the collection bucket is 3 - 4 cm higher than the top height of the pipe body of the water inlet pipe extending into the collection bucket.

[0010] Preferably, the manure suction hole is a round hole with a diameter of 1 cm, and the number of manure suction holes is 10 - 20.

[0011] Preferably, the drain pipe includes a main drain pipe section, a pipe joint, and a reducing section. The bottom end of the main drain pipe section is connected to the drain port on the bottom wall of the breeding bucket. The top end of the main drain pipe section is connected to one end of the reducing section through the pipe joint, and the other end of the reducing section opposite to the main drain pipe section extends upward into the collection bucket.

[0012] Preferably, the diameters of the water inlet hole and the drain hole on the bottom wall of the collection bucket are both 5 cm. The outer diameter of the water inlet pipe is 5 cm, and the outer diameter of the reducing section is 5 cm.

[0013] Preferably, the inner diameter of the main drain pipe section is 7.5 cm.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The height of the drain pipe is higher than that of the water inlet pipe. During the process that the water body in the breeding bucket enters the collection bucket through the water inlet pipe and is discharged through the drain pipe, fish manure deposits at the bottom of the collection bucket. Thus, while discharging the sewage in the breeding bucket, the separation and collection of fish manure are realized, meeting the needs of fish manure collection for scientific research experiments. At the same time, since the breeding dirt in the breeding bucket can be discharged in time, the sewage treatment load of the circulating water system is reduced, and the water quality of the circulating water system is maintained within a reasonable range for breeding, thereby improving the breeding quality.

[0016] 2. The structures of the collection bucket, the water inlet pipe, and the drain pipe are simple, and the manufacturing and installation are more convenient. The separation and collection of fish manure can be realized with low manufacturing cost, and the application prospect is good.

[0017] 3. Since the inner diameter of the main drain pipe section of the drain pipe is larger than the outer diameter of the water inlet pipe and also larger than the inner diameter of the water inlet pipe, it is beneficial for dirt and fish manure to be quickly sucked into the collection bucket through the water inlet pipe, thereby improving the fish manure collection efficiency.

[0018] 4. An inner cylinder is movably embedded in the collection bucket. The top end of the inner cylinder is higher than the top end of the collection bucket. Oppositely arranged handles are provided on the side wall of the inner cylinder higher than the collection bucket. When enough fish manure is collected, the inner cylinder can be lifted through the handles, so as to recycle the fish manure in the inner cylinder and avoid the loss of fish manure caused by directly taking out the fish manure from the water in the inner cylinder. Description of the Drawings

[0019] Figure 1 This is a schematic structural diagram of the fish feces separation device of the aquaculture circulating water system in Embodiment 1 of the present utility model;

[0020] Figure 2 This is a schematic structural diagram of the fish feces separation device of the aquaculture circulating water system in Embodiment 2 of the present utility model.

[0021] In the figure: 1, breeding barrel; 2, collection barrel; 3, water inlet pipe; 31, feces suction hole; 4, drain pipe; 41, main drain pipe section; 42, pipe joint; 43, reducing section; 5, inner cylinder; 51, water outlet hole; 6, partition chamber; 7, handle. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1

[0024] Please refer to Figure 1 , a fish feces separation device for an aquaculture circulating water system, which is used to separate and collect fish feces while discharging sewage from the breeding barrel 1. This fish feces separation device includes a collection barrel 2, a water inlet pipe 3 and a drain pipe 4. The bottom wall of the collection barrel 2 is respectively provided with a water inlet hole and a drain hole. The top end of the water inlet pipe 3 extends upward through the water inlet hole into the collection barrel 2, and the bottom end of the water inlet pipe 3 is placed downward on the bottom wall of the breeding barrel 1. The top end of the drain pipe 4 extends upward through the drain hole into the collection barrel 2, and the bottom end of the drain pipe 4 is connected downward to a drain port provided on the bottom wall of the breeding barrel 1. A plurality of uniformly distributed feces suction holes 31 are provided on the circumferential wall of the water inlet pipe 3 at the end placed on the bottom wall of the breeding barrel 1. The height of the top end of the pipe body of the drain pipe 4 extending into the collection barrel 2 is higher than the height of the top end of the pipe body of the water inlet pipe 3 extending into the collection barrel 2. In this embodiment, the height of the top end of the pipe body of the drain pipe 4 extending into the collection barrel 2 is 3-4 cm higher than the height of the top end of the pipe body of the water inlet pipe 3 extending into the collection barrel 2.

[0025] In this embodiment, since the height of the drain pipe 4 is higher than that of the water inlet pipe 3, during the process that the water in the breeding barrel 1 enters the collection barrel 2 from the water inlet pipe 3 and is discharged from the drain pipe 4, fish feces and dirt are deposited at the bottom of the collection barrel 2. Thus, while discharging the sewage in the breeding barrel 1, the separation and collection of fish feces are realized, meeting the need for fish feces collection in scientific research experiments. At the same time, since the breeding dirt in the breeding barrel 1 can be discharged in time, the sewage treatment load of the circulating water system is reduced, the water quality of the circulating water system is maintained within a reasonable range for breeding, and the breeding quality is improved.

[0026] The collection barrel 2 is a barrel structure with an open top, that is, a round barrel. The height of the collection barrel 2 is 17 cm, and the inner diameter of the collection barrel 2 is 25 cm. The structures of the collection barrel 2, the water inlet pipe 3, and the drain pipe 4 are simple, and their manufacturing and installation are more convenient. The separation and collection of fish feces can be realized with low manufacturing costs, and the application prospect is good.

[0027] In this embodiment, the breeding barrel 1 is cylindrical, with a height of 120 cm, an inner diameter of 100 cm inside the barrel, a water depth of 100 cm inside the barrel, and an effective breeding water volume of 0.785 m 3 , the water in the breeding barrel 1 is exchanged 5 times within 1 hour, and the feed is fed twice at 8:00 and 16:00 every day. The daily feed intake is 2% of the fish body weight. Under the action of the water flow, after 0.5 - 1 h after feeding, the fish feces and residual bait can be successively absorbed into the collection barrel 2.

[0028] The feces suction hole 31 is a round hole with a diameter of 1 cm, and the number of the feces suction holes 31 is 10 - 20. However, the diameter size and the number of the feces suction holes 31 are not limited to this, and the diameter size and the number of the feces suction holes 31 can be adjusted accordingly according to actual needs.

[0029] Please refer to Figure 1 , the drain pipe 4 includes a drain main pipe section 41, a pipe joint 42, and a reducing section 43. The bottom end of the drain main pipe section 41 is connected to the drain port on the bottom wall of the breeding barrel 1, the top end of the drain main pipe section 41 is connected to one end of the reducing section 43 through the pipe joint 42, and the other end of the reducing section 43 opposite to the drain main pipe section 41 extends upward into the collection barrel 2. The diameters of the water inlet hole and the drain hole on the bottom wall of the collection barrel 2 are both 5 cm. At the same time, the outer diameter of the water inlet pipe 3 is set to 5 cm, and the outer diameter of the reducing section 43 is set to 5 cm, which is convenient for fitting and assembling. The connection parts of the drain pipe 4, the water inlet pipe 3, and the collection barrel 2 are adhered with glue.

[0030] In this embodiment, the length of the reduced-diameter section 43 is 10 cm, and the inner diameter of the main drainage pipe section 41 is 7.5 cm. As can be seen from the above, since the inner diameter of the main drainage pipe section 41 of the drainage pipe 4 is larger than the outer diameter of the water inlet pipe 3 and also larger than the inner diameter of the water inlet pipe 3, this is conducive to the rapid passage of dirt and fish feces through the water inlet pipe 3 and into the collection bucket 2, thereby improving the efficiency of fish feces collection.

[0031] Embodiment 2

[0032] The structure of this Embodiment 2 is generally the same as that of Embodiment 1, with the difference being: Please refer to Figure 2 , an inner cylinder 5 is movably embedded in the collection bucket 2. A separation cavity 6 is reserved between the outer wall of the inner cylinder 5 and the inner wall of the collection bucket 2. The inner cylinder 5 is used to collect fish feces. A through hole is opened on the bottom surface of the inner cylinder 5 for the water inlet pipe 3 to pass through, and a perforation is opened on the bottom surface of the inner cylinder 5 for the drainage pipe 4 to pass through.

[0033] In this Embodiment 2, the top end of the inner cylinder 5 is higher than the top end of the collection bucket 2. Water outlet holes 51 are opened on the barrel wall of the upper part of the inner cylinder 5. Handles 7 are oppositely arranged on the side wall of the inner cylinder 5 that is higher than the collection bucket 2. When enough fish feces are collected, the inner cylinder 5 can be lifted through the handles 7. During the process of lifting the inner cylinder 5, the water in the inner cylinder 5 continuously flows out from the water outlet holes 51, while the fish feces in the lower part of the inner cylinder 5 remain in the inner cylinder 5. When the inner cylinder 5 is separated from the collection bucket 2, the fish feces in the inner cylinder 5 can be recycled, avoiding the loss of fish feces caused by directly taking out the fish feces from the water in the inner cylinder 5.

[0034] The working principle of the fish feces separation device of the aquaculture circulating water system of the present utility model is as follows: During the aquaculture process in the aquaculture bucket 1, to ensure live water, water needs to continuously enter the aquaculture bucket 1. During the aquaculture process, it is also necessary to keep the water surface height of the aquaculture bucket 1 unchanged. Therefore, according to and using the principles of air pressure and pressure, the aquaculture water in the aquaculture bucket 1 can only continuously enter the collection bucket 2 or the inner cylinder 5 through the water inlet pipe 3 and further be discharged from the drainage pipe 4. At this time, the water surface submerges the top ends of both the water inlet pipe 3 and the drainage pipe 4; during the process of discharging the aquaculture water, under the action of the water flow, aquaculture dirt and fish feces are continuously sucked into the water inlet pipe 3 through the feces suction holes 31 of the water inlet pipe 3 and flow upward through the water inlet pipe 3 into the collection bucket 2 or the inner cylinder 5; because fish feces have a certain weight and the height of the top end of the pipe body of the drainage pipe 4 extending into the collection bucket 2 is higher than the height of the top end of the pipe body of the water inlet pipe 3 extending into the collection bucket 2, the fish feces settle at the bottom of the collection bucket 2 or the inner cylinder 5, while the aquaculture water and some aquaculture dirt are discharged out of the aquaculture bucket 1 through the water inlet pipe 3, thus completing the collection of fish feces. The collected fish feces can be recycled by lifting the inner cylinder 5; in this embodiment, the fish feces in the collection bucket 2 or the inner cylinder 5 can also be directly taken away with tweezers to complete the fish feces sampling, which is suitable for the situation of small-scale sampling, and the aquaculture dirt is siphoned out of the collection bucket 2 with a hose.

[0035] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fish manure separation device for an aquaculture recirculating water system, which is used to separate and collect fish manure while discharging sewage from a culture barrel (1), and is characterized in that: This fish feces separation device includes a collection bucket (2), a water inlet pipe (3), and a drain pipe (4). The bottom wall of the collection bucket (2) is respectively provided with a water inlet hole and a drain hole. The top end of the water inlet pipe (3) extends upward through the water inlet hole into the collection bucket (2), and the bottom end of the water inlet pipe (3) is placed downward on the bottom wall of the breeding bucket (1). The top end of the drain pipe (4) extends upward through the drain hole into the collection bucket (2), and the bottom end of the drain pipe (4) is connected downward to a drain port provided on the bottom wall of the breeding bucket (1). A plurality of uniformly distributed feces suction holes (31) are provided on the peripheral wall of the water inlet pipe (3) at the end placed on the bottom wall of the breeding bucket (1). The height of the top end of the pipe body of the drain pipe (4) extending into the collection bucket (2) is higher than the height of the top end of the pipe body of the water inlet pipe (3) extending into the collection bucket (2).

2. The fish manure separation device of the aquaculture recirculating water system according to claim 1, characterized in that: An inner cylinder (5) is movably embedded in the collection bucket (2), and a separation cavity (6) is reserved between the outer wall of the inner cylinder (5) and the inner wall of the collection bucket (2).

3. The fish manure separation device of the aquaculture circulating water system according to claim 2, characterized in that: The top end of the inner cylinder (5) is higher than the top end of the collection bucket (2). Water outlet holes (51) are provided on the cylinder wall of the upper part of the inner cylinder (5), and handles (7) are oppositely arranged on the side wall of the inner cylinder (5) higher than the collection bucket (2).

4. The fish manure separation device of the aquaculture circulating water system according to claim 1, characterized in that: The collection bucket (2) is a bucket body structure with an open top. The height of the collection bucket (2) is 17 cm, and the inner diameter of the collection bucket (2) is 25 cm.

5. The fish manure separation device of the aquaculture recirculating water system according to claim 1, characterized in that: The height of the top end of the pipe body of the drain pipe (4) extending into the collection bucket (2) is 3 - 4 cm higher than the height of the top end of the pipe body of the water inlet pipe (3) extending into the collection bucket (2).

6. The fish manure separation device of the aquaculture circulating water system according to claim 1, characterized in that: The feces suction holes (31) are round holes with a diameter of 1 cm, and the number of the feces suction holes (31) is 10 - 20.

7. The fish manure separation device of the aquaculture circulating water system according to claim 1, characterized in that: The drain pipe (4) includes a drain main pipe section (41), a pipe joint (42), and a reduced-diameter section (43). The bottom end of the drain main pipe section (41) is connected to the drain port on the bottom wall of the breeding bucket (1). The top end of the drain main pipe section (41) is connected to one end of the reduced-diameter section (43) through the pipe joint (42), and the reduced-diameter section (43) extends upward into the collection bucket (2) relative to one end of the drain main pipe section (41).

8. The fish manure separation device of the aquaculture circulating water system according to claim 7, characterized in that: The diameters of the water inlet hole and the drain hole on the bottom wall of the collection bucket (2) are both 5 cm. The outer diameter of the water inlet pipe (3) is 5 cm, and the outer diameter of the reduced-diameter section (43) is 5 cm.

9. The fish manure separation device of the aquaculture circulating water system according to claim 7 or 8, characterized in that: The inner diameter of the drain main pipe section (41) is 7.5 cm.

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