JP2018201489A - Fish and shellfish culture apparatus - Google Patents

Abstract

To provide a fish and shellfish culture apparatus capable of feeding a large amount of fish and shellfish at high density, by generating a water flow in feeding water by small power.SOLUTION: Concerning such pisciculture tanks that feeding water in the pisciculture tanks 2A, 2B is circulated, a flow generating apparatus 3 causing the minimum water level rise is disposed in the pisciculture tanks 2A, 2B, and a flat water flow is generated in the feeding water by the rising water level, and circulated.SELECTED DRAWING: Figure 1

Description

  The present invention increases the level of the breeding water at the starting point by using the raising power of the breeding water provided by the wake-up device provided in the circulation channel of the cultivation pond so as to generate a planar circulating water flow in the entire cultivation tank. The present invention relates to an aquaculture device.

  An aquaculture device that generates a circulating water flow in an aquaculture pond is described in Patent Document 1, for example.

JP 2013-255449 A

In the invention described in Patent Document 1, the water flow of circulating water is generated by supplying water with a pump. However, a large amount of power is required to pump water out of the pump.
The present invention provides a seafood aquaculture device that divides the water surface of a fish tank provided in a circulating manner back and forth, and raises the level of the breeding water at the front of the partition, thereby generating a circulating water flow throughout the fish tank. It is intended to provide.

  In order to solve the above problems, the present invention has taken the following measures.

  (1) A purification unit provided with a purification device is partitioned by a blocking net at the front of a long fish tank before and after providing the first fish tank and the second fish tank on the left and right via the partition wall, The breeding water can be circulated from the second fish tank to the first fish tank through the purification section, and the bottom of the tank at the rear end of the second fish tank is filled with a settling gill at the bottom, A drain hole equipped with a plug is connected to the sewer, and the front and back of the water flow is blocked by a groove provided at the bottom of the tank between a pair of shut-off nets installed at the front and back of the tank. A blocking wall is provided close to the bottom of the slot from the surface of the water, and an air supply port of an air supply pipe extending from an external air supply device is installed on the slot wall at the front of the blocking wall so as to prevent bubbles. The squirting water that swells up creates a flat water stream that faces the front of the second fish tank. Through the purifying device of purifying part, to the front from the first fish tank rear shed feeding water, fish farming apparatus comprising so as to circulate throughout flowed round it in a second fish tank.

  (2) At the front of the second fish tank, the bottom of the rear net of the shut-off net is provided with a plurality of settling basins with the full width of the tank, and a drain hole at the bottom provided with a stopper. The seafood aquaculture apparatus according to (1), wherein an opening / closing door that is openable and closable is provided in each of the water channels leading to the first fish tank and the second fish tank from the purification apparatus in the purification section partitioned into sections.

  (3) The seafood aquaculture apparatus according to (1) or (2), wherein an oxygen pipe extending from an oxygen tank is connected to an air supply pipe of the air supply apparatus so that oxygen can be injected and stopped.

  According to the present invention, the following effects can be obtained.

In the invention described in (1) above, a purification section in which a purification device is installed is provided in the front part of the fish tank divided into left and right by the partition wall, and the rear part of the partition wall in the second fish tank Since there are multiple sedimentation ridges at the bottom of the tank, large fish excrement and residual food mixed with the breeding water in the fish tank will settle in the sedimentation tank, resulting in a minimum rise in water level. Since a wake-up device is provided and a flat water flow is generated in the breeding water by the rising water level, the motive energy can be minimized.
In addition, when the compressed air released from the bottom of the slot formed in the bottom of the fish tank to the breeding water rises as bubbles at the front of the barrier, By raising the surface of the breeding water, the water level is raised and a flat water flow such as Tsunami is generated, so that the breeding water can be turned into circulating water around the entire fish tank with small power.
Oxygen in the air that has become bubbles in the feeding water can be dissolved in the feeding water to increase the oxygen concentration in the feeding water. Further, since carbon dioxide vaporized on the water surface can be removed, an apparatus for removing carbon dioxide can be omitted.

  In the invention described in (2) above, since a plurality of sedimentation ridges are disposed across the tank width on the tank bottom of the rear part of the blocking net in the front part of the second fish tank, the dust in the second fish tank is also reduced. It can collect | recover at an early stage with a settled soot, and can reduce the burden of the purification apparatus in a purification | cleaning part.

  In the invention described in (3) above, in the purification unit in which the purification device is disposed between the second fish tank and the first fish tank, the water channel is branched and provided long, and the purified water is purified. Since it is made to circulate to a fish tank via, a purification device can be arranged in a place distant from the site. Moreover, the water channel to the purification unit can be closed to facilitate cleaning of the purification device.

It is a top view which shows an example of the fishery culture apparatus of this invention. It is the II-II line enlarged vertical sectional view in FIG. FIG. 2 is a plan view of the settled soot shown in FIG. 1. It is a top view which shows another example of the fishery culture apparatus of this invention.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a seafood aquaculture apparatus 1 according to the present invention. A long and narrow first fish tank 2A and a second fish tank 2B aligned therewith are divided into left and right by a partition wall 5 disposed in the middle. However, the front part of the first fish tank 2 </ b> A and the rear part of the second fish tank 2 </ b> B are communicated with each other by the circulation channel 5 </ b> A of the partition wall 5.
In the rear part of the second fish tank 2B, a wake-up device 3 is arranged in the middle of the front and rear blocking nets 3E and 3D to blow out bubbles 8 from below and raise the water just above to generate a flow, with a full tank width. It is installed.

  A plurality of sedimentation basins 4A and 4A are arranged in parallel at the rear of the rear blocking net 3D to fill the tank width. A purification unit 4F is defined with the shielding nets 3E and 9 arranged in the same row at the rear of the first fish tank 2A and the front of the second fish tank 2B.

When the wake-up device 3 is operated, the breeding water has a flat water flow across the width of the second fish tank 2B, and the flowing breeding water flows from the second fish tank 2B through the purification device 4 of the purification unit 4F, It enters the first fish tank 2A, are adapted to circulate the entire further to a second fish tank 2B.
The breeding water has a depth of about 150 cm, for example, and is adjusted up or down depending on the size and quantity of fish.

The seafood aquaculture apparatus 1 shown in FIG. 1 has a length of 55 m and a width of 11 m, for example, and the first and second fish tanks 2 </ b> A and 2 </ b> B arranged side by side are partitioned by a partition wall 5. .
A part of the partition wall 5 protrudes from the purification unit 4F, is in contact with the wall surface of the purification device 4, and a part of the partition wall 5A is formed with a water channel 5A having an openable / closable door 5B. It is possible to circulate no breeding water 5B.
The purification device 4 in the purification unit 4F having a length of about 17 m, for example, is disposed so as to be sandwiched between the first fish tank 2A and the second fish tank 2B.

  As shown in FIG. 2 in the longitudinal section taken along line II-II in FIG. 1, the wake-up device 3 is long at the tip of the bottom of the first fish tank 2 in the tank width direction, for example, a deep groove exceeding 2 m. A hole 3A is formed, and a blocking wall 3B for blocking water before and after the groove 3A is disposed in the middle of the groove 3A from the water surface to near the bottom of the groove 3A, and is divided into a plurality in the tank width direction. The wall 3C is sectioned (five sections in FIG. 1), so that the water flow is efficiently generated. The partition wall 3C may not be formed if not necessary.

Accordingly, as shown in FIG. 2, the breeding water in the first fish tank 2A enters the slot 3A which is long in the tank width direction and dives under the blocking wall 3B and above the front part of the slot 3A. To enter the second fish tank 2B.
As shown in FIG. 2, a pair of front and rear blocking nets 3D and 3E for restricting fish traffic are provided on the tank bottom 2C, which is the upper surface of the front and rear edges of the slot 3A.

  As shown in FIGS. 1 and 2, an air supply pipe 7 extending from the air supply device 6 is disposed in front of the lower edge of the blocking wall 3B of the slot 3A, and an air outlet opening upward at the top. 7A is provided. The air outlet 7A may have any number and shape as long as bubbles 8 are generated.

When compressed air is sent from the air supply device 6, the bubbles 8 rise vigorously from the air outlet 7 </ b> A, and live up just above the breeding water.
The raised breeding water moves horizontally like a Tsunami to the front of the second fish tank 2B, generates a water flow, enters the first fish tank 2A through the purification device 4 in the purification unit 4F, and enters the second fish tank 2A. Is circulated throughout the fish tank 2B.

  In FIG. 2, the breeding water in the slot 3A is moved to the second fish tank 2B by the wake-up device 3, so that the breeding water in the first fish tank 2A is sucked into the bottom of the slot 3A and blocked. It moves to the front of 3B, a flow arises, and the whole breeding water will circulate.

  This makes it possible to efficiently circulate the entire breeding water in the fish tanks 2A and 2B without separately installing a circulation pump. The farmed fish will continue to exercise upstream and grow healthy. However, if the flow rate is too high, the fish and shellfish will be fatigued, so the flow rate will be appropriate for the farmed fish.

  In addition, the bubbles 8 ejected from the air outlet 7A in the wake device 3 can take oxygen in the air into the breeding water, and agitation of water by a water wheel or the like can be omitted.

As shown in FIG. 1, a plurality of rectangular sediments 4A, 4A in a plan view are formed in parallel with the width direction of the fish tank 2 in proximity to the upstream side of the blocking nets 3D, 3E.
As shown in FIG. 4, the sedimentation trough 4A is formed deeply in a funnel shape at the bottom of the fish tank 2, and a drain hole 4B leading to a sewer (not shown) is formed at the center of the bottom, and a stopper 4C is provided. .

When residual food, fish excrement, etc. flow into the settling basin 4A and a certain amount settles, the stopper 4C is pulled out and stored in a settling tank via a sewer (not shown).
Opening and closing doors 2F and 2F are provided in the water channel leading to the purification device 4 in the purification unit 4F. Some of them have a fine dust filter.

As a result, while the feed water flows through the upper part of the settling basin 4A, heavy items such as residual food and fish excrement are precipitated and removed by the settling basin 4A. In the next biofilm treatment apparatus 4D, ammonia, organic matter, Even if the fine particles that have passed through 4A are filtered and the circulation of the breeding water is, for example, 200 m ³ / hour, it can be filtered with high efficiency. By closing the open / close doors 2F and 2F, the purification device 4 can be easily cleaned.

  In the biofilm treatment apparatus 4D, a filtration net (not shown) is stretched at the bottom of the tank, and a large number of small brazing materials (not shown) are packed on the tank. Sew and rise. Bacteria grow on the bait, fish excrement, etc. that adheres to the straw material and decompose. The filtered breeding water is circulated from the tank bottom to the first fish tank 2A through an upward circuit.

  Fresh water is supplied from the fresh water supply pump 10 shown in FIG. 1 to the first fish tank 2A via the fresh water pipe 10A. As a result, the seafood can be fed at a maximum density of, for example, 100 kg per ton of water.

  Further, when the oxygen concentration sensor 12 detects that the oxygen content in the water is less than 90% of the oxygen saturation, the automatic controller 13 automatically operates the valve 11B of the oxygen tank 11 via the oxygen pipe 11A. Then, oxygen is supplied to the breeding water in the fish tank 2 so as to be saturated.

In this case, the oxygen pipe 11A can be connected to the air supply pipe 7 so as to be released into the breeding water together with the bubbles 8.
This oxygen supply is important for natural disasters and other emergencies.

The seafood cultivated by the seafood aquaculture apparatus 1 is for cultivating seafood suitable for the place in addition to rainbow trout, salmon, etc., but is not limited thereto.
As breeding water, in addition to fresh water, seawater or water containing a salt content close to seawater may be used.

An illumination lamp capable of irradiating the water surface is provided in the vicinity of the fish tank 2 to assist in extending the sunshine hours in the fall / winter season or to be sterilized with a germicidal lamp.
In snowy areas, a snow-proof roof will be provided. In places where there is no roof, a bird net or a shading curtain that avoids the summer sun is stretched on the fish tank 2.

FIG. 5 is a plan view showing another embodiment of the seafood aquaculture apparatus 1. The same members as those of the previous example are denoted by the same reference numerals and description thereof is omitted.
In this embodiment, the purification device 4 is provided at a location away from the fish tank 2 for the convenience of the site area.

That is, the water channel 2D is extended from the second fish tank 2B, the purification unit 4F is provided at the tip thereof, the purification device 4 is disposed, and the water channel 2E connected from the purification device 4 is connected to the first fish tank 2A. I'm allowed. Opening and closing doors 2F and 2F are disposed in the water channels 2D and 2E.
Thereby, the opening / closing door 2F of the water channels 2D and 2E can be closed to facilitate the cleaning of the purification device 4.

  A device similar to the wake device 3 may be disposed in the water channel 2D on the front side or the water channel 2E on the rear side of the purification device 4. A plurality of the seafood aquaculture devices 1 are installed in parallel in the state shown in FIG.

  Since the entire breeding water in the fish tank can be circulated and filtered with a simple wake-up device, a large amount of fish and shellfish can be cultivated without running water from rivers or other water sources.

1. Seafood farming equipment2. Fish tank 2A. First fish tank 2B. Second fish tank 2C. Tank bottom 2D, 2E. Channel 2F. Open / close door 3. Current generator 3A. Slot 3B. Blocking wall 3C. Partition wall 3D. 3E. Blocking network 4. Purification device 4A. Precipitated cake 4B. Drain hole 4C. Plug 4D. Biofilm treatment apparatus 4E. Saddle 4F. Purification unit 5. Partition wall 5A. Circulation channel 5B. Open / close door 6. Air supply device 7. Air pipe 7A. Air vent 8 Bubble 9 Barrier net
10. Fresh water supply pump 10A. Fresh water pipe 11. Oxygen tank 11A. Oxygen tube 11B. Valve 12. Oxygen concentration sensor 13. Automatic controller W. Rearing water

The present invention increases the level of the breeding water at the starting point by using the raising power of the breeding water provided by the wake-up device provided in the circulation channel of the cultivation pond so as to generate a planar circulating water flow in the entire cultivation tank. When both, on fish and shellfish aquaculture device adapted to farming, such as rainbow trout that inhabit the large amounts of fish feces and Chiri挨efficiently eliminated to the Qing cold water.

For example, Patent Literature 1 and Patent Literature 2 describe an aquaculture device that generates a circulating water flow in an aquaculture pond.

JP 2013-255449 A JP 62-68591 A

In the invention described in Patent Document 1, the water flow of circulating water is generated by supplying water with a pump. However, a large amount of power is required to pump water out of the pump.
Further, for example, the invention described in Patent Document 2 is such that several tons of fish excrement generated in the same manner as the amount of the fed food is left as it is, and the aquaculture water is simply stirred together with the fish excrement. It becomes a tank that cannot fish.
The present invention provides a seafood aquaculture device that divides the water surface of a fish tank provided in a circulating manner back and forth, and raises the level of the breeding water at the front of the partition, thereby generating a circulating water flow throughout the fish tank. It is intended to provide.

  In order to solve the above problems, the present invention has taken the following measures.

(1) Inside a fish tank that is long in the front-rear direction, a purification part provided with a purification device is defined in the front part of the rear part of the rearing part via a shut-off net, and the rearing part is placed in the center in the left-right direction. A first fish tank and a second fish tank are formed on the left and right sides through a partition wall provided in the section, and the partition wall projects the front end from the blocking net to the front purification section, and the rear end A water channel is formed without contacting the facing tank wall, and the breeding water can be circulated from the first fish tank to the first fish tank through the second fish tank and the purification section , and the partition. the funnel-shaped sedimentation chambers to the bath full width in a bath bottom surface of the rear end portion of the second fish tank that starts from the rear end of the wall, arranged to drain hole with a plug of the bottom leading to the sewer, the precipitate squares the front, the tank bottom between the pair of blocking network that is installed to the front and rear, is provided on the full width groove of In addition, a blocking wall for blocking the front and back water flow is provided close to the bottom surface of the slot from the water, and the air supply of the air supply pipe extending from the external air supply device to the slot wall at the front of the blocking wall and臨設mouth, by feeding water rises by jetting bubbles, by occurrence of planar water flow towards the front of the second fish tank and circulating flow, bubble in the portion after the second fish tank gushes From the slot portion to be passed through the purification device of the purification section in the front part of the second fish tank, and then circulated from the rear part of the first fish tank to the second fish tank to circulate this flow throughout. Aquaculture equipment.

(2) to the tank bottom in the immediately following blocking network in front of the second fish tank, a plurality of precipitation squares full width, provided plug is disposed in the drain hole of the bottom of the cut-off network The seafood according to (1) above, wherein the water channel leading to the first fish tank and the second fish tank is provided with an opening / closing door capable of opening and closing the water channel, respectively, from the purification device in the purification unit partitioned in the front part. Aquaculture equipment.

  (3) The seafood aquaculture apparatus according to (1) or (2), wherein an oxygen pipe extending from an oxygen tank is connected to an air supply pipe of the air supply apparatus so that oxygen can be injected and stopped.

  According to the present invention, the following effects can be obtained.

In the invention described in (1) above, a purification section in which a purification device is installed is provided in the front part of the fish tank divided into left and right by the partition wall, and the rear part of the partition wall in the second fish tank Since there are a number of sediments across the bottom of the tank, large fish excrement and residual food that mix and flow in the breeding water in the fish tank will settle in the sediments and be drained early. Water is less turbid. Since the wake-up device that causes the minimum rise in the water level is disposed, a planar water flow is generated in the breeding water by the raised water level, so that the motive energy can be minimized.
In addition, when the compressed air released from the bottom of the slot formed in the bottom of the fish tank to the breeding water rises as bubbles at the front of the barrier, By raising the surface of the breeding water, the water level is raised and a flat water flow such as Tsunami is generated, so that the breeding water can be turned into circulating water around the entire fish tank with small power.
Oxygen in the air that has become bubbles in the feeding water can be dissolved in the feeding water to increase the oxygen concentration in the feeding water. Further, since carbon dioxide vaporized on the water surface can be removed, an apparatus for removing carbon dioxide can be omitted.

  In the invention described in (2) above, since a plurality of settling tubs are disposed across the width of the tank bottom of the rear part of the blocking net in the front part of the second fish tank, dust in the second fish tank also settles. It can be recovered at an early stage by boiling, and the burden on the purification device in the purification unit can be reduced.

  In the invention described in (3) above, in the purification unit in which the purification device is disposed between the second fish tank and the first fish tank, the water channel is branched and provided long, and the purified water is purified. Since it is made to circulate to a fish tank via, a purification device can be arranged in a place distant from the site. Moreover, the water channel to the purification unit can be closed to facilitate cleaning of the purification device.

It is a top view which shows an example of the fishery culture apparatus of this invention. It is the II-II line enlarged vertical sectional view in FIG. FIG. 2 is a plan view of the settled soot shown in FIG. 1. It is a top view which shows another example of the fishery culture apparatus of this invention.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a seafood aquaculture apparatus 1 according to the present invention. A long and narrow first fish tank 2A and a second fish tank 2B aligned therewith are divided into left and right by a partition wall 5 disposed in the middle. However, the front part of the first fish tank 2 </ b> A and the rear part of the second fish tank 2 </ b> B are communicated with each other by the circulation channel 5 </ b> A of the partition wall 5.
In the rear part of the second fish tank 2B, a wake-up device 3 is arranged in the middle of the front and rear blocking nets 3E and 3D to blow out bubbles 8 from below and raise the water just above to generate a flow, with a full tank width. It is installed.

  A plurality of sedimentation basins 4A and 4A are arranged in parallel at the rear of the rear blocking net 3D to fill the tank width. A purification unit 4F is defined with the shielding nets 3E and 9 arranged in the same row at the rear of the first fish tank 2A and the front of the second fish tank 2B.

When the wake-up device 3 is operated, the breeding water has a flat water flow across the width of the second fish tank 2B, and the flowing breeding water flows from the second fish tank 2B through the purification device 4 of the purification unit 4F, It enters the first fish tank 2A, are adapted to circulate the entire further to a second fish tank 2B.
The breeding water has a depth of about 150 cm, for example, and is adjusted up or down depending on the size and quantity of fish.

The seafood aquaculture apparatus 1 shown in FIG. 1 has a length of 55 m and a width of 11 m, for example, and the first and second fish tanks 2 </ b> A and 2 </ b> B arranged side by side are partitioned by a partition wall 5. .
A part of the partition wall 5 protrudes from the purification unit 4F, is in contact with the wall surface of the purification device 4, and a part of the partition wall 5A is formed with a water channel 5A having an openable / closable door 5B. It is possible to circulate no breeding water.
The purification device 4 in the purification unit 4F having a length of about 17 m, for example, is disposed so as to be sandwiched between the first fish tank 2A and the second fish tank 2B.

  As shown in FIG. 2 in the longitudinal section taken along line II-II in FIG. 1, the wake-up device 3 is long at the tip of the bottom of the first fish tank 2 in the tank width direction, for example, a deep groove exceeding 2 m. A hole 3A is formed, and a blocking wall 3B for blocking water before and after the groove 3A is disposed in the middle of the groove 3A from the water surface to near the bottom of the groove 3A, and is divided into a plurality in the tank width direction. The wall 3C is sectioned (five sections in FIG. 1), so that the water flow is efficiently generated. The partition wall 3C may not be formed if not necessary.

Accordingly, as shown in FIG. 2, the breeding water in the first fish tank 2A enters the slot 3A which is long in the tank width direction and dives under the blocking wall 3B and above the front part of the slot 3A. To enter the second fish tank 2B.
As shown in FIG. 2, a pair of front and rear blocking nets 3D and 3E for restricting fish traffic are provided on the tank bottom 2C, which is the upper surface of the front and rear edges of the slot 3A.

  As shown in FIGS. 1 and 2, an air supply pipe 7 extending from the air supply device 6 is disposed in front of the lower edge of the blocking wall 3B of the slot 3A, and an air outlet opening upward at the top. 7A is provided. The air outlet 7A may have any number and shape as long as bubbles 8 are generated.

When compressed air is sent from the air supply device 6, the bubbles 8 rise vigorously from the air outlet 7 </ b> A, and live up just above the breeding water.
The raised breeding water moves horizontally like a Tsunami to the front of the second fish tank 2B, generates a water flow, enters the first fish tank 2A through the purification device 4 in the purification unit 4F, and enters the second fish tank 2A. Is circulated throughout the fish tank 2B.

  In FIG. 2, the breeding water in the slot 3A is moved to the second fish tank 2B by the wake-up device 3, so that the breeding water in the first fish tank 2A is sucked into the bottom of the slot 3A and blocked. It moves to the front of 3B, a flow arises, and the whole breeding water will circulate.

  This makes it possible to efficiently circulate the entire breeding water in the fish tanks 2A and 2B without separately installing a circulation pump. The farmed fish will continue to exercise upstream and grow healthy. However, if the flow rate is too high, the fish and shellfish will be fatigued, so the flow rate will be appropriate for the farmed fish.

  In addition, the bubbles 8 ejected from the air outlet 7A in the wake device 3 can take oxygen in the air into the breeding water, and agitation of water by a water wheel or the like can be omitted.

As shown in FIG. 1, a plurality of rectangular sediments 4A, 4A in a plan view are formed in parallel with the width direction of the fish tank 2 in proximity to the upstream side of the blocking nets 3D, 3E.
As shown in FIG. 4, the sedimentation trough 4A is formed deeply in a funnel shape at the bottom of the fish tank 2, and a drain hole 4B leading to a sewer (not shown) is formed at the center of the bottom, and a stopper 4C is provided. .

In the settling basin 4A, the remaining amount of feed , fish excrement, etc., equivalent to the fed bait flows, and when a certain amount settles, the stopper 4C is pulled out and stored in a settling tank through a sewer (not shown). As a result, the fish excrement can be treated at an early stage, and a large amount of fish excrement is agitated in the water and is prevented from decaying.
Opening and closing doors 2F and 2F are provided in the water channel leading to the purification device 4 in the purification unit 4F. Some of them have a fine dust filter.

As a result, while the feed water flows through the upper part of the settling basin 4A, heavy items such as residual food and fish excrement are precipitated and removed by the settling basin 4A. In the next biofilm treatment apparatus 4D, ammonia, organic matter, Even if the fine particles that have passed through 4A are filtered and the circulation of the breeding water is, for example, 200 m ³ / hour, it can be filtered with high efficiency.
By closing the open / close doors 2F and 2F, the purification device 4 can be easily cleaned.

  In the biofilm treatment apparatus 4D, a filtration net (not shown) is stretched at the bottom of the tank, and a large number of small brazing materials (not shown) are packed on the tank. Sew and rise. Bacteria grow on the bait, fish excrement, etc. that adheres to the straw material and decompose. The filtered breeding water is circulated from the tank bottom to the first fish tank 2A through an upward circuit.

  Fresh water is supplied from the fresh water supply pump 10 shown in FIG. 1 to the first fish tank 2A via the fresh water pipe 10A. As a result, the seafood can be fed at a maximum density of, for example, 100 kg per ton of water.

  Further, when the oxygen concentration sensor 12 detects that the oxygen content in the water is less than 90% of the oxygen saturation, the automatic controller 13 automatically operates the valve 11B of the oxygen tank 11 via the oxygen pipe 11A. Then, oxygen is supplied to the breeding water in the fish tank 2 so as to be saturated.

In this case, the oxygen pipe 11A can be connected to the air supply pipe 7 so as to be released into the breeding water together with the bubbles 8.
This oxygen supply is important for natural disasters and other emergencies.

The seafood cultivated by the seafood aquaculture apparatus 1 is for cultivating seafood suitable for the place in addition to rainbow trout, salmon, etc., but is not limited thereto.
As breeding water, in addition to fresh water, seawater or water containing a salt content close to seawater may be used.

An illumination lamp capable of irradiating the water surface is provided in the vicinity of the fish tank 2 to assist in extending the sunshine hours in the fall / winter season or to be sterilized with a germicidal lamp.
In snowy areas, a snow-proof roof will be provided. In places where there is no roof, a bird net or a shading curtain that avoids the summer sun is stretched on the fish tank 2.

FIG. 5 is a plan view showing another embodiment of the seafood aquaculture apparatus 1. The same members as those of the previous example are denoted by the same reference numerals and description thereof is omitted.
In this embodiment, the purification device 4 is provided at a location away from the fish tank 2 for the convenience of the site area.

That is, the water channel 2D is extended from the second fish tank 2B, the purification unit 4F is provided at the tip thereof, the purification device 4 is disposed, and the water channel 2E connected from the purification device 4 is connected to the first fish tank 2A. I'm allowed. Opening and closing doors 2F and 2F are disposed in the water channels 2D and 2E.
Thereby, the opening / closing door 2F of the water channels 2D and 2E can be closed to facilitate the cleaning of the purification device 4.

  A device similar to the wake device 3 may be disposed in the water channel 2D on the front side or the water channel 2E on the rear side of the purification device 4. A plurality of the seafood aquaculture devices 1 are installed in parallel in the state shown in FIG.

  Since the entire breeding water in the fish tank can be circulated and filtered with a simple wake-up device, a large amount of fish and shellfish can be cultivated without running water from rivers or other water sources.

1. Seafood farming equipment2. Fish tank 2A. First fish tank 2B. Second fish tank 2C. Tank bottom 2D, 2E. Channel 2F. Open / close door 3. Current generator 3A. Slot 3B. Blocking wall 3C. Partition walls 3D, 3E. Blocking network 4. Purification device 4A. Precipitated cake 4B. Drain hole 4C. Plug 4D. Biofilm treatment apparatus 4E. Saddle 4F. Purification unit 5. Partition wall 5A. Circulation channel 5B. Open / close door 6. Air supply device 7. Air pipe 7A. Air vent 8 Bubble 9 Barrier net
10. Fresh water supply pump 10A. Fresh water pipe 11. Oxygen tank 11A. Oxygen tube 11B. Valve 12. Oxygen concentration sensor 13. Automatic controller W. Rearing water

The present invention increases the level of the breeding water at the starting point by using the raising power of the breeding water provided by the wake-up device provided in the circulation channel of the cultivation pond so as to generate a planar circulating water flow in the entire cultivation tank. The present invention relates to an aquaculture device.

  An aquaculture device that generates a circulating water flow in an aquaculture pond is described in Patent Document 1, for example.

JP 2013-255449 A

In the invention described in Patent Document 1, the water flow of circulating water is generated by supplying water with a pump. However, a large amount of power is required to pump water out of the pump .
The present invention divides the water surface of a fish tank provided so as to be able to circulate back and forth, and raises the level of the breeding water at the front of the partition, thereby producing a fish culture device that generates a circulating water flow throughout the fish tank. It is intended to provide.

  In order to solve the above problems, the present invention has taken the following measures.

  (1) Inside a fish tank that is long in the front-rear direction, a purification unit equipped with a purification device is formed in the front part of the rear of the rearing unit via a blocking net, and the rearing unit is arranged in the center in the left-right direction. A first fish tank and a second fish tank are formed on the left and right sides through a partition wall provided in the section, and the partition wall projects the front end from the blocking net to the front purification section, and the rear end A water channel is formed without contacting the facing tank wall, and the breeding water can be circulated from the first fish tank to the first fish tank through the second fish tank and the purification section, and the partition. In the second fish tank starting from the rear end of the wall, a funnel-shaped settling basin is provided on the bottom of the rear end of the tank so that the drainage hole with the bottom plug is connected to the sewer. A slot provided across the width on the bottom of the tank between a pair of barrier nets installed in the front and back. The air supply port of the air supply pipe that extends from the external air supply device to the front groove wall of the blocking wall is provided with a blocking wall that blocks the front and back water flow close to the bottom surface of the slot A groove in which the bubbles in the rear part of the second fish tank are ejected by causing a planar water flow to the front of the second fish tank by the breeding water that rises by blowing up the bubbles and creating a planar water flow toward the front of the second fish tank. From the hole part, through the purification device of the purification unit in the front part of the second fish tank, it is circulated from the rear part of the first fish tank to the second fish tank, and this flow is circulated throughout. apparatus.

(2) to the tank bottom in the immediately following blocking network in front of the second fish tank, a plurality of precipitation chambers filled tank width, provided plug is disposed in the drain hole of the bottom portion, the cut-off network The seafood according to (1) above, wherein the water channel leading to the first fish tank and the second fish tank is provided with an opening / closing door capable of opening and closing the water channel, respectively, from the purification device in the purification unit partitioned in the front part of Aquaculture equipment.

  (3) The seafood aquaculture apparatus according to (1) or (2), wherein an oxygen pipe extending from an oxygen tank is connected to an air supply pipe of the air supply apparatus so that oxygen can be injected and stopped.

  According to the present invention, the following effects can be obtained.

In the invention described in (1) above, a purification section in which a purification device is installed is provided in the front part of the fish tank divided into left and right by the partition wall, and the rear part of the partition wall in the second fish tank Since there are multiple sedimentation ridges at the bottom of the tank, large fish excrement and residual food mixed with the breeding water in the fish tank will settle in the sedimentation tank, resulting in a minimum rise in water level. Since the wake-up device is provided, a planar water flow is generated in the breeding water by the rising water level, so that the motive energy can be minimized.
In addition, when the compressed air released from the bottom of the slot formed in the bottom of the fish tank to the breeding water rises as bubbles at the front of the barrier, By raising the surface of the breeding water, the water level is raised and a flat water flow such as Tsunami is generated, so that the breeding water can be turned into circulating water around the entire fish tank with small power.
Oxygen in the air that has become bubbles in the feeding water can be dissolved in the feeding water to increase the oxygen concentration in the feeding water. Further, since carbon dioxide vaporized on the water surface can be removed, an apparatus for removing carbon dioxide can be omitted.

  In the invention described in (2) above, since a plurality of sedimentation ridges are disposed across the tank width on the tank bottom of the rear part of the blocking net in the front part of the second fish tank, the dust in the second fish tank is also reduced. It can collect | recover at an early stage with a settled soot, and can reduce the burden of the purification apparatus in a purification | cleaning part.

  In the invention described in (3) above, in the purification unit in which the purification device is disposed between the second fish tank and the first fish tank, the water channel is branched and provided long, and the purified water is purified. Since it is made to circulate to a fish tank via, a purification device can be arranged in a place distant from the site. Moreover, the water channel to the purification unit can be closed to facilitate cleaning of the purification device.

It is a top view which shows an example of the fishery culture apparatus of this invention. It is the II-II line enlarged vertical sectional view in FIG. FIG. 2 is a plan view of the settled soot shown in FIG. 1. It is a top view which shows another example of the fishery culture apparatus of this invention.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a seafood aquaculture apparatus 1 according to the present invention. A long and narrow first fish tank 2A and a second fish tank 2B aligned therewith are divided into left and right by a partition wall 5 disposed in the middle. However, the front part of the first fish tank 2 </ b> A and the rear part of the second fish tank 2 </ b> B are communicated with each other by the circulation channel 5 </ b> A of the partition wall 5.
At the rear of the second fish tank 2B, there is a wake-up device 3 that blows out bubbles 8 from below in the middle of the front and rear blocking nets 3E and 3D and swells the water directly above to create a flow, filling the tank width. It is arranged.

  A plurality of sedimentation basins 4A and 4A are arranged in parallel at the rear of the rear blocking net 3D to fill the tank width. A purification unit 4F is defined between the rear part of the first fish tank 2A and the front part of the second fish tank 2B, with the shielding nets 3E and 9 arranged in the same row as a boundary.

When the wake-up device 3 is operated, the breeding water has a flat water flow across the width of the second fish tank 2B, and the flowing breeding water flows from the second fish tank 2B through the purification device 4 of the purification unit 4F, It enters the first fish tank 2A and further circulates entirely to the second fish tank 2B.
The breeding water has a depth of about 150 cm, for example, and is adjusted up or down depending on the size and quantity of fish.

The seafood aquaculture apparatus 1 shown in FIG. 1 has a length of 55 m and a width of 11 m, for example, and the first fish tank 2 A and the second fish tank 2 B arranged side by side are partitioned by a partition wall 5. .
A part of the partition wall 5 protrudes from the purification unit 4F, is in contact with the wall surface of the purification device 4, and a part of the partition wall 5A is formed with a water channel 5A having an openable / closable door 5B. It is possible to circulate no breeding water.
The purification device 4 in the purification unit 4F having a length of about 17 m, for example, is disposed so as to be sandwiched between the first fish tank 2A and the second fish tank 2B.

  As shown in FIG. 2 in the longitudinal section taken along line II-II in FIG. 1, the wake-up device 3 is long at the tip of the bottom of the first fish tank 2 in the tank width direction, for example, a deep groove exceeding 2 m. A hole 3A is formed, and a blocking wall 3B for blocking water before and after the groove 3A is disposed in the middle of the groove 3A from the water surface to near the bottom of the groove 3A, and is divided into a plurality in the tank width direction. The wall 3C is sectioned (five sections in FIG. 1), so that the water flow is efficiently generated. The partition wall 3C may not be formed if not necessary.

Accordingly, as shown in FIG. 2, the breeding water in the first fish tank 2A enters the slot 3A which is long in the tank width direction and dives under the blocking wall 3B and above the front part of the slot 3A. To enter the second fish tank 2B.
As shown in FIG. 2, a pair of front and rear blocking nets 3D and 3E for restricting fish traffic are provided on the tank bottom 2C, which is the upper surface of the front and rear edges of the slot 3A.

  As shown in FIGS. 1 and 2, an air supply pipe 7 extending from the air supply device 6 is disposed in front of the lower edge of the blocking wall 3B of the slot 3A, and an air outlet opening upward at the top. 7A is provided. The air outlet 7A may have any number and shape as long as bubbles 8 are generated.

When compressed air is sent from the air supply device 6, the bubbles 8 rise vigorously from the air outlet 7 </ b> A, and live up just above the breeding water.
The raised breeding water moves horizontally like a Tsunami to the front of the second fish tank 2B, generates a water flow, enters the first fish tank 2A through the purification device 4 in the purification unit 4F, and enters the second fish tank 2A. Is circulated throughout the fish tank 2B.

  In FIG. 2, the breeding water in the slot 3A is moved to the second fish tank 2B by the wake-up device 3, so that the breeding water in the first fish tank 2A is sucked into the bottom of the slot 3A and blocked. It moves to the front of 3B, a flow arises, and the whole breeding water will circulate.

  This makes it possible to efficiently circulate the entire breeding water in the fish tanks 2A and 2B without separately installing a circulation pump. The farmed fish will continue to exercise upstream and grow healthy. However, if the flow rate is too high, the fish and shellfish will be fatigued, so the flow rate will be appropriate for the farmed fish.

  In addition, the bubbles 8 ejected from the air outlet 7A in the wake device 3 can take oxygen in the air into the breeding water, and agitation of water by a water wheel or the like can be omitted.

As shown in FIG. 1, a plurality of rectangular sediments 4A, 4A in a plan view are formed in parallel with the width direction of the fish tank 2 in proximity to the upstream side of the blocking nets 3D, 3E.
As shown in FIG. 4, the sedimentation trough 4A is formed deeply in a funnel shape at the bottom of the fish tank 2, and at the center of the bottom is formed a drain hole 4B leading to a sewer (not shown) below, with a stopper 4C. is there.

Some precipitation squares 4A, Zan'esa, fish feces flows and certain amount precipitates, remove the stopper 4C, is processed accumulated in the settling tank through a sewer (not shown). Opening and closing doors 2F and 2F are provided in the water channel leading to the purification device 4 in the purification unit 4F. Some of them have a fine dust filter.

As a result, while the feed water flows through the upper part of the settling basin 4A, heavy items such as residual food and fish excrement are precipitated and removed by the settling basin 4A. In the next biofilm treatment apparatus 4D, ammonia, organic matter, Even if the fine particles that have passed through 4A are filtered and the circulation of the breeding water is, for example, 200 m ³ / hour, it can be filtered with high efficiency.
By closing the open / close doors 2F and 2F, the purification device 4 can be easily cleaned.

  In the biofilm treatment apparatus 4D, a filtration net (not shown) is stretched at the bottom of the tank, and a large number of small brazing materials (not shown) are packed on the tank. Sew and rise. Bacteria grow on the bait, fish excrement, etc. that adheres to the straw material and decompose. The filtered breeding water is circulated from the tank bottom to the first fish tank 2A through an upward circuit.

  Fresh water is supplied from the fresh water supply pump 10 shown in FIG. 1 to the first fish tank 2A via the fresh water pipe 10A. As a result, the seafood can be fed at a maximum density of, for example, 100 kg per ton of water.

  Further, when the oxygen concentration sensor 12 detects that the oxygen content in the water is less than 90% of the oxygen saturation, the automatic controller 13 automatically operates the valve 11B of the oxygen tank 11 via the oxygen pipe 11A. Then, oxygen is supplied to the breeding water in the fish tank 2 so as to be saturated.

In this case, the oxygen pipe 11A can be connected to the air supply pipe 7 so as to be released into the breeding water together with the bubbles 8.
This oxygen supply is important for natural disasters and other emergencies.

The seafood cultivated by the seafood aquaculture apparatus 1 is for cultivating seafood suitable for the place in addition to rainbow trout, salmon, etc., but is not limited thereto.
As breeding water, in addition to fresh water, seawater or water containing salt close to seawater may be used.

An illumination lamp capable of irradiating the water surface is provided in the vicinity of the fish tank 2 to assist in extending the sunshine hours in the fall / winter season or to be sterilized with a germicidal lamp.
In snowy areas, a snow-proof roof will be provided. In places where there is no roof, a bird net or a shading curtain that avoids the summer sun is stretched on the fish tank 2.

FIG. 5 is a plan view showing another embodiment of the seafood aquaculture apparatus 1. The same members as those of the previous example are denoted by the same reference numerals and description thereof is omitted.
In this embodiment, the purification device 4 is provided at a location away from the fish tank 2 for the convenience of the site area.

That is, the water channel 2D is extended from the second fish tank 2B, the purification unit 4F is provided at the tip thereof, the purification device 4 is disposed, and the water channel 2E connected from the purification device 4 is connected to the first fish tank 2A. I'm allowed. Opening and closing doors 2F and 2F are disposed in the water channels 2D and 2E.
Thereby, the opening / closing door 2F of the water channels 2D and 2E can be closed to facilitate the cleaning of the purification device 4.

  A device similar to the wake device 3 may be disposed in the water channel 2D on the front side or the water channel 2E on the rear side of the purification device 4. A plurality of the seafood aquaculture devices 1 are installed in parallel in the state shown in FIG.

  Since the entire breeding water in the fish tank can be circulated and filtered with a simple wake-up device, a large amount of fish and shellfish can be cultivated without running water from rivers or other water sources.

1. Seafood farming equipment2. Fish tank 2A. First fish tank 2B. Second fish tank 2C. Tank bottom 2D, 2E. Channel 2F. Open / close door 3. Current generator 3A. Slot 3B. Blocking wall 3C. Partition walls 3D, 3E. Blocking network 4. Purification device 4A. Precipitated cake 4B. Drain hole 4C. Plug 4D. Biofilm treatment apparatus 4E. Saddle 4F. Purification unit 5. Partition wall 5A. Circulation channel 5B. Open / close door 6. Air supply device 7. Air pipe 7A. Air vent 8 Bubble 9 Barrier net
10. Fresh water supply pump 10A. Fresh water pipe 11. Oxygen tank 11A. Oxygen tube 11B. Valve 12. Oxygen concentration sensor 13. Automatic controller W. Rearing water

Claims (3)

  A purification unit provided with a purification device is partitioned by a blocking net at the front of the long fish tank before and after the first and second fish tanks are provided on the left and right sides through the partition wall, and the drinking water is supplied. It was possible to circulate from the second fish tank to the first fish tank through the purification section, and the bottom of the tank at the rear end of the second fish tank was equipped with a settling basin with a full tank width and a stopper at the bottom. A drainage hole is provided so as to connect to the sewer, and a barrier wall that blocks the front and back water flows is formed in the front of the tank at the bottom of the tank between a pair of barrier nets installed at the front and back, and in a groove hole provided at the full width of the tank. The air supply port of the air supply pipe that extends from the external air supply device is installed in the groove wall at the front of the blocking wall and is provided close to the bottom surface of the groove hole from the water, and bubbles are ejected to rise. By the breeding water, a planar water flow directed to the front of the second fish tank is generated, and from the front of the second fish tank, Apparatus through the first flowing feeding water from fish tanks rear to the front, which flowed round the second fish tank, fish farming apparatus characterized by comprising as to circulate throughout.   At the bottom of the rear tank of the shut-off net in the front part of the second fish tank, a plurality of sediments are arranged in the drain hole at the bottom of the tank so as to fill the tank width, and the front part of the shut-off net is partitioned. The aquaculture according to claim 1, wherein an opening / closing door capable of opening and closing the water channel is provided in each of the water channels leading from the purification device in the purification unit to the first fish tank and the second fish tank. apparatus.   The fish and shellfish aquaculture apparatus according to claim 1 or 2, wherein an oxygen pipe extending from an oxygen tank is connected to an air supply pipe of the air supply apparatus so that oxygen can be injected and stopped.

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