Recovery system

Abstract

To provide a recovery system capable of suitably recovering farm-raised marine products possessing the property of crawling into sand.SOLUTION: A recovery system recovers farm-raised marine products. The recovery system comprises a farming part for farming the marine products. The farming part includes a housing part for housing an object-to-be-conveyed including the marine products, water and sand, and a jet twister pump which is arranged within the housing part and which conveys the object-to-be-conveyed to a recovery part while swirling it.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a recovery device. [Background technology]

[0002] Patent Document 1 discloses a recovery device for recovering farmed oysters as an example of marine products. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-59766 Summary of the Invention [Problem to be solved by the invention]

[0004] Another example of marine products is farmed shrimp, which burrow into sand and are therefore collected together with water and sand. This means that the farmed shrimp may come into contact with the sand during collection, and may be injured. The above-mentioned collection device does not take into consideration the appropriate collection of marine products that have the tendency to burrow into sand.

[0005] An object of the present invention is to provide a recovery device that can suitably recover cultured marine products that have the tendency to burrow into sand. [Means for solving the problem]

[0006] A recovery device according to a first aspect of the present invention is a recovery device for recovering cultured aquatic products, and includes a cultivation section for cultivating the aquatic products, the cultivation section including a storage section for storing a transported object including the aquatic products, water, and sand, and a jet twister pump that is disposed inside the storage section and transports the transported object to the recovery section while rotating.

[0007] According to the recovery device of the first aspect, the object to be transported is transported while rotating by the jet twister pump. Because centrifugal force acts on the object to be transported, for example, in a tube connected to the jet twister pump, the marine products flow through the center, while sand, which is heavier than the marine products, flows near the inner circumferential surface of the tube. Because the marine products and sand are transported in a separated state, contact between the marine products and sand is suppressed during the transport process of the object to be transported. This allows the marine products to be recovered in an optimal manner.

[0008] A recovery device according to a second aspect of the present invention is the recovery device according to the first aspect, wherein the culture section is provided with a first tube connected to the jet twister pump and sucking up the transported object, and the first tube has an operating section positioned at a position higher than the water surface of the transported object in the storage section.

[0009] According to the recovery device of the second aspect, an operator can easily move the first tube by operating the operation part, and therefore the operation of sucking up the transported object can be efficiently performed.

[0010] A recovery device according to a third aspect of the present invention is a recovery device according to the first or second aspect, wherein the culture section is connected to the jet twister pump and comprises a second tube for transporting the transported object to the recovery section, and the second tube is arranged to straddle the storage section.

[0011] According to the recovery device of the third aspect, since there is no need to form a through hole in the storage section for the second tube to pass through, leakage of the transported object from the storage section can be suppressed.

[0012] A recovery device according to a fourth aspect of the present invention is a recovery device for recovering cultured aquatic products, and includes a recovery section for recovering the transported object sent from a storage section that accommodates the transported object including the aquatic products, water, and sand, the recovery section including a first recovery section for recovering the aquatic products and a release section that releases the transported object toward the first collection section, and the release section is configured to slow down the transport speed of the transported object.

[0013] According to the recovery device of the fourth aspect, the transported object sent from the storage section is decelerated in transport speed by the releasing section and released into the first recovery section, so that the released marine products are prevented from being subjected to strong impacts, and therefore the marine products can be recovered in an optimal manner.

[0014] A recovery device according to a fifth aspect of the present invention is the recovery device according to the fourth aspect, wherein the discharge section includes an inlet for the transported object and an outlet for the transported object, and the opening area of ​​the outlet is larger than the opening area of ​​the inlet.

[0015] According to the recovery device according to the fifth aspect, it is possible to reduce the transport speed of the transported objects passing through the release section with a simple configuration.

[0016] A recovery device according to a sixth aspect of the present invention is the recovery device according to the fourth or fifth aspect, wherein the release section is configured to release the transported body into the water in the first recovery section.

[0017] According to the recovery device according to the sixth aspect, strong impacts on the marine products released into the first recovery section are further prevented.

[0018] A recovery device according to a seventh aspect of the present invention is the recovery device according to any one of the fourth to sixth aspects, and includes a second recovery section that houses the first recovery section and recovers the sand.

[0019] According to the recovery device of the seventh aspect, the marine products and sand contained in the transport object recovered in the recovery section can be easily separated.

[0020] A recovery device according to an eighth aspect of the present invention is a recovery device for recovering cultured aquatic products, and includes an acceleration unit disposed between a storage unit that stores a transported object including the aquatic products, water, and sand, and a recovery unit that recovers the transported object transported from the storage unit, and the acceleration unit is configured to accelerate the transported object transported from the storage unit.

[0021] When the distance between the storage unit and the recovery unit is long, the transport speed of the transported object may decrease. According to the recovery device of the eighth aspect, since the recovery device includes the acceleration unit, the transported object can be transported suitably even when the distance between the storage unit and the recovery unit is long.

[0022] A recovery device according to a ninth aspect of the present invention is a recovery device according to the eighth aspect, wherein the acceleration section includes an intermediate recovery section that recovers a portion of the water and sand contained in the transported object, and an injection section that injects the water recovered by the intermediate recovery section toward the transported object that has passed through the intermediate recovery section.

[0023] According to the recovery device of the ninth aspect, since the ejection section ejects water contained in the transport object, there is no need to add water from outside, and therefore the structure of the recovery device can be simplified.

[0024] A recovery device according to a tenth aspect of the present invention is the recovery device according to the ninth aspect, wherein the transported object is transported to the recovery section while rotating by a jet twister pump arranged inside the storage section, and the spraying section sprays the water recovered by the intermediate recovery section at a predetermined angle inclined with respect to the transport direction of the transported object when viewed from above or below.

[0025] According to the recovery device according to the tenth aspect, the transport object is likely to be maintained in a rotated state. Effect of the Invention

[0026] According to the present invention, a recovery device can be provided that can suitably recover cultured marine products that have the tendency to burrow into sand. [Brief description of the drawings]

[0027] [Figure 1] FIG. 2 is a schematic diagram of a recovery device according to an embodiment. [Diagram 2] Cross-sectional view of the acceleration section of Figure 1. [Diagram 3] FIG. 3 is a bottom view of the acceleration section of FIG. 2 with some components omitted. [Figure 4]FIG. 2 is a plan view of the emission section of FIG. 1; [Diagram 5] FIG. 2 is a bottom view of the emission section of FIG. 1 . DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, an embodiment of a recovery device according to the present invention will be described with reference to the drawings.

[0029] <1. Configuration of recovery device> Fig. 1 is a schematic diagram of a recovery device 10. Fig. 2 is a cross-sectional view of an acceleration section 30 in Fig. 1. Fig. 3 is a bottom view of the acceleration section 30 in Fig. 2 with some components omitted.

[0030] The recovery device 10 is configured to suitably recover cultured marine products. Cultured marine products have the property of burrowing into sand. The marine products are, for example, shrimp (particularly kuruma prawns). The recovery device 10 includes a culture unit 20, an acceleration unit 30, and a recovery unit 90.

[0031] The culture section 20 has a storage section 21, a jet twister pump 22 (hereinafter referred to as “pump 22”), a first tube 23, and a second tube 24.

[0032] The storage unit 21 stores the transport object 100 including marine products. The transport object 100 includes water and sand in addition to the marine products. The water is fresh water or seawater. The seawater may be artificial seawater. The specific configuration of the storage unit 21 can be selected arbitrarily as long as it is a configuration capable of storing the transport object 100. In this embodiment, the storage unit 21 is a water tank. The storage unit 21 may also be a hole dug in the ground.

[0033] The pump 22 transports the object 100 toward the recovery section 90 while rotating it. The pump 22 sucks up the object 100 by an ejector effect. High-pressure water is supplied to the pump 22 from an external engine-equipped pressure generator (not shown). The pump 22 injects high-pressure water onto the object 100, thereby accelerating the object 100 that has been sucked up and twisting it, thereby rotating the object 100. As the jet twister pump 22, for example, a pump described in Japanese Patent No. 6789556 can be used.

[0034] The location of the pump 22 can be selected arbitrarily as long as it is a location where the transported object 100 can be transported. From the viewpoint of preventing air from accumulating in the first tube 23 and the second tube 24 and reducing the transport efficiency, the pump 22 is preferably arranged inside the accommodation unit 21, more specifically, underwater. When the pump 22 is arranged underwater, the pump 22 is prevented from sucking in air, and therefore, air can be prevented from accumulating in the first tube 23 and the second tube 24.

[0035] The first tube 23 is connected to the pump 22. The first tube 23 sucks up the transported object 100 from the suction port 23A. The first tube 23 preferably has an operation unit 23X that is placed at a position higher than the water surface 100A of the transported object 100. An operator can easily move the first tube 23 by operating the operation unit 23X. The material constituting the first tube 23 may be resin or metal. Note that the specifications related to the material constituting the first tube 23 in this embodiment can be similarly applied to other tubes.

[0036] The second tube 24 is connected to the pump 22 and transports the transported object 100 to the recovery section 90. The second tube 24 is preferably arranged so as to straddle the storage section 21. When the second tube 24 is arranged so as to straddle the storage section 21, it is not necessary to form a through hole in the storage section 21 for the second tube 24 to pass through, so that leakage of the transported object 100 from the storage section 21 can be suppressed.

[0037] The acceleration section 30 shown in Fig. 2 is disposed between the culture section 20 and the recovery section 90. When the distance between the storage section 21 and the recovery section 90 is long (for example, when the distance is 10 m or more), the transport speed of the transport object 100 may decrease. The acceleration section 30 is configured to accelerate the transport object 100.

[0038] The acceleration section 30 includes an intermediate recovery section 40 and an injection section 80. The intermediate recovery section 40 has a passing section 50, a storage section 60, and a connecting section 70.

[0039] The passing portion 50 is connected to an end 24A of the second tube 24 opposite to the end connected to the pump 22, and to one end 93A of a third tube 93 described later. The passing portion 50 has a housing 51 and a tube 52.

[0040] The housing 51 is, for example, a hollow box. The housing 51 is made of, for example, metal. The tube 52 is disposed inside the housing 51. One end 52A of the tube 52 is connected to an end 24A of the second tube 24. The other end 52B of the tube 52 is connected to an end 93A of the third tube 93.

[0041] One or more through holes 52X are formed in the tube 52. A mesh filter 52Y is joined to the inner peripheral surface of the tube 52 so as to cover the through holes 52X. The openings of the mesh filter 52Y can be arbitrarily selected as long as they are large enough to prevent the marine products contained in the transported body 100 from passing through and allow sand to pass through.

[0042] The storage unit 60 stores the water and sand that have passed through the mesh filter 52Y and the through-holes 52X of the transport target 100. The sand accumulates at the bottom of the storage unit 60. The specific configuration of the storage unit 60 can be selected arbitrarily as long as it is capable of storing water and sand. In this embodiment, the storage unit 60 is a water tank. The storage unit 60 may also be a hole dug in the ground.

[0043] The connecting portion 70 connects the housing 51 and the storage portion 60. The water and sand that have passed through the mesh filter 52Y and the through-holes 52X pass through the connecting portion 70 and are stored in the storage portion 60. The connecting portion 70 may be configured integrally with at least one of the housing 51 and the storage portion 60, or may be configured separately from the housing 51 and the storage portion 60.

[0044] The ejection unit 80 has a water pressure pump 81, a connection tube 82, and an ejection tube 83. The water pressure pump 81 ejects the water stored in the storage unit 60 into the third tube 93. The water pressure pump 81 does not require a supply of water from an outside source.

[0045] The connecting tube 82 connects the water pressure pump 81 and the storage unit 60. Water stored in the storage unit 60 is supplied to the water pressure pump 81 via the connecting tube 82. One end of the jet tube 83 is connected to the water pressure pump 81. The other end of the jet tube 83 is connected to the third tube 93.

[0046] In a side view of the acceleration unit 30, the angle θA between the central axis of the ejection tube 83 and the central axis of the third tube 93 can be selected arbitrarily. From the viewpoint of suppressing the hindrance of the rotation of the transported object 100 passing through the third tube 93, the angle θA is preferably within the range of 1° to 70°. In this embodiment, the angle θA is 15°.

[0047] In a plan view or bottom view of the acceleration section 30, the angle θB between the central axis of the third tube 93 and the central axis of the injection tube 83 can be selected arbitrarily. From the viewpoint of maintaining favorable rotation of the transported object 100 passing through the third tube 93, the angle θB is preferably within the range of -70° or more and +70° or less. In this embodiment, the angle θB is +5°.

[0048] The recovery section 90 recovers the transport target object 100. The recovery section 90 has a first recovery section 91, a second recovery section 92, a third tube 93, and a discharge section 94.

[0049] The first collection section 91 collects marine products from the transported object 100. It is preferable that the first collection section 91 is formed with one or more holes 91A so that only the marine products from the transported object 100 can be easily collected. The size of the hole is such that the marine products cannot pass through but sand can pass through. The specific configuration of the first collection section 91 can be selected arbitrarily as long as it is a configuration that can accommodate marine products. In this embodiment, the first collection section 91 is a container made of punching metal. The first collection section 91 may be a net.

[0050] The second collection section 92 collects water and sand from the transported object 100. The second collection section 92 accommodates at least a portion of the first collection section 91. The specific configuration of the second collection section 92 can be selected arbitrarily as long as it is a configuration capable of collecting water and sand. In this embodiment, the second collection section 92 is a water tank. The second collection section 92 may also be a hole dug in the ground.

[0051] The third tube 93 transports the transported object 100 that has passed through the acceleration unit 30 to the recovery unit 90. The other end 93B of the third tube 93 is located within the first recovery unit 91.

[0052] The release section 94 is connected to the other end 93B of the third tube 93. The release section 94 releases the transported object 100 that has passed through the third tube 93 toward the first collection section 91. From the viewpoint of preventing the marine product released into the first collection section 91 from being subjected to a strong impact, the release section 94 is configured to reduce the transport speed of the transported object 100. In this embodiment, the release section 94 has a shape of a hollow cone with the upper end cut off.

[0053] FIG. 4 is a plan view of the discharge section 94. FIG. 5 is a bottom view of the discharge section 94. The discharge section 94 has an inlet 94A and an outlet 94B. The inlet 94A is connected to the end 93B of the third tube 93. The outlet 94B faces the first recovery section 91. The opening area of ​​the outlet 94B is larger than the opening area of ​​the inlet 94A. In this embodiment, the inner diameter of the inlet 94A is substantially the same as the inner diameter of the third tube 93. From the viewpoint of suitably reducing the conveying speed of the conveyed object 100 passing through the discharge section 94, it is preferable that the inner diameter of the outlet 94B is in the range of 1.5 times to 20 times the inner diameter of the inlet 94A. In this embodiment, the inner diameter of the outlet 94B is three times the inner diameter of the inlet 94A. That is, the conveying speed of the conveyed object 100 that has passed through the inlet 94A is reduced to 1 / 9 when passing through the outlet 94B.

[0054] From the viewpoint of suitably preventing strong impact from being applied to the marine products released into the first collection section 91, the release section 94 is preferably configured to release the transported object 100 into the water of the first collection section 91. In other words, the release section 94 is preferably arranged so that at least the outlet 94B is present in the water of the first collection section 91. In the present embodiment, the release section 94 is arranged so that the entirety thereof is present in the water of the first collection section 91.

[0055] <2. Operation of the recovery device> When the cultivated marine products are harvested, the pump 22 is placed in the storage section 21, and each element constituting the recovery device 10 is connected. The operator operates the operation section 23X of the first tube 23 to move the suction port 23A in the storage section 21. The transported object 100 sucked up from the first tube 23 is transported to the second tube 24 by the pump 22. The transported object 100 that has passed through the second tube 24 passes through the tube 52. Some of the water and sand of the transported object 100 that passes through the tube 52 is stored in the storage section 60. The transported object 100 that has passed through the tube 52 passes through the third tube 93 and is decelerated and released to the first recovery section 91 by the release section 94. The operator raises the first recovery section 91 relative to the second recovery section 92, so that the water and sand of the transported object 100 move from the hole 91A of the first recovery section 91 to the second recovery section 92. As a result, the marine products remaining in the first collection section 91 are collected.

[0056] <3. Effect of recovery device> According to the recovery device 10 of this embodiment, the following effects can be obtained.

[0057] <3-1> The pump 22 rotates the transported object 100 while transporting it. Because centrifugal force acts on the transported object 100, in the second tube 24, the tube 52, and the third tube 93, the marine products flow near the center of each of the tubes 24, 52, and 93, while the sand, which is heavier than the marine products, flows near the inner circumferential surfaces of each of the tubes 24, 52, and 93. Since the marine products and the sand are transported separately, contact between the marine products and the sand is suppressed during the transport of the transported object 100. This allows the marine products to be collected favorably.

[0058] <3-2> An operator can easily move the first tube 23 by operating the operation part 23X. Therefore, the operation of sucking up the transported object 100 can be efficiently performed.

[0059] <3-3> Since the second tube 24 is disposed so as to straddle the accommodation portion 21, it is not necessary to form a through hole in the accommodation portion 21 for the second tube 24 to pass through. Therefore, leakage of the transported object 100 from the accommodation portion 21 can be suppressed.

[0060] <3-4> The transported object 100 sent from the storage section 21 is decelerated in transport speed by the releasing section 94 and released into the first collecting section 91, so that the released marine products are prevented from being subjected to strong impacts. Therefore, the marine products can be favorably collected.

[0061] <3-5> Since the opening area of ​​the outlet 94B of the discharge section 94 is larger than the opening area of ​​the inlet 94A, the conveying speed of the conveyed object 100 passing through the discharge section 94 can be reduced with a simple configuration.

[0062] <3-6> Since the releasing section 94 is configured to release the transported object 100 into the water of the first collecting section 91, the marine products released into the first collecting section 91 are further prevented from being subjected to strong impacts.

[0063] <3-7> Since the recovery device 10 includes the second recovery section 92, the marine products and sand contained in the transport object 100 recovered in the recovery section 90 can be easily separated from each other.

[0064] <3-8> Since the recovery device 10 includes the acceleration unit 30, the object 100 can be transported suitably even if the distance between the storage unit 21 and the recovery unit 90 is long.

[0065] <3-9> Since the ejection unit 80 ejects the water stored in the storage unit 60, in other words, the water contained in the transport target body 100, it is not necessary to add water from the outside. Therefore, the configuration of the recovery device 10 can be simplified.

[0066] <3-10> The ejection unit 80 ejects the water collected by the intermediate collection unit 40 at a predetermined angle θB with respect to the transport direction of the transported object 100 in a plan view or bottom view of the acceleration unit 30. This makes it easier to maintain the rotated state of the transported object 100 passing through the third tube 93.

[0067] <4. Modifications> The above-mentioned embodiment is an example of a form that the recovery device according to the present invention can take, and is not intended to limit the form. The recovery device according to the present invention can take a form different from the form exemplified in the embodiment. One example is a form in which a part of the configuration of the embodiment is replaced, changed, or omitted, or a form in which a new configuration is added to the embodiment. Some examples of modified embodiments are shown below. Note that the following modified embodiments can be combined with each other as long as there is no technical contradiction.

[0068] <4-1. First modified example> In the above embodiment, the recovery device 10 is required to include at least the storage unit 21 and the pump 22. Other configurations can be changed as desired.

[0069] <4-2. Second modified example> In the above embodiment, the recovery device 10 needs to include at least the first recovery section 91 and the release section 94. Other configurations can be changed arbitrarily.

[0070] <4-3.Third modified example> In the above embodiment, the recovery device 10 is required to include at least the acceleration unit 30. Other configurations can be changed arbitrarily.

[0071] <4-4. Fourth modified example> In the above embodiment, the marine products can be changed arbitrarily as long as they have the property of burrowing into sand. [Explanation of symbols]

[0072] 10: Recovery device 20: Aquaculture Department 21: Storage unit 22: Jet Twister Pump 23: 1st tube 23X:Operation unit 24: 2nd tube 30: Acceleration section 40: Intermediate recovery section 80: Injection part 81: Water pressure pump 90: Recovery Department 91: First Recovery Section 92: 2nd Recovery Section 94: Emission part 94A: Entrance 94B:Exit 100: Object to be transported 100A: Water surface

Claims

1. A recovery device for recovering cultured aquatic products, comprising: A farming section for farming the marine products, The aquaculture department comprises: a container for containing the marine product, water, and sand; a jet twister pump that is disposed inside the storage unit and transports the object to a recovery unit while rotating the object. Recovery device.

2. The aquaculture unit includes a first tube connected to the jet twister pump and configured to suck up the object to be transported, The first tube has an operating portion that is disposed at a position higher than the water surface of the transported object in the storage portion. The recovery device according to claim 1 .

3. The aquaculture unit includes a second tube connected to the jet twister pump and configured to transport the object to the recovery unit, The second tube is disposed so as to straddle the storage portion. The recovery device according to claim 1 or 2.

4. A recovery device for recovering cultured aquatic products, comprising: a recovery unit that recovers the transported object sent from a storage unit that stores the transported object including the marine product, water, and sand; The recovery section includes: A first collection section for collecting the marine products; a release section that releases the transported object toward the first collection section, The discharge section is configured to decelerate the transport speed of the transport object. Recovery device.

5. the discharge section includes an inlet for the object to be transported and an outlet for the object to be transported, The opening area of ​​the outlet is larger than the opening area of ​​the inlet. The recovery device according to claim 4.

6. The discharge section is configured to discharge the transported object into the water in the first collection section. The recovery device according to claim 4 or 5.

7. A second collection section is provided to accommodate the first collection section and collect the sand. The recovery device according to claim 4 or 5.

8. A recovery device for recovering cultured aquatic products, comprising: an acceleration unit disposed between a storage unit that stores the transported object including the marine product, water, and sand, and a recovery unit that recovers the transported object transported from the storage unit; The acceleration unit is configured to accelerate the object to be transported from the storage unit. Recovery device.

9. The acceleration unit includes: an intermediate recovery section that recovers a portion of the water and sand contained in the transported object; an ejection unit that ejects the water recovered by the intermediate recovery unit toward the object that has passed through the intermediate recovery unit. The recovery device according to claim 8.

10. the object is transported to the collection section while rotating by a jet twister pump disposed inside the storage section, The ejection unit ejects the water collected by the intermediate collection unit at a predetermined angle inclined with respect to the transport direction of the transported object in a plan view or a bottom view. The recovery device according to claim 9.

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