JP2016047013A - Apparatus and method for washing aquaculture basket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus and method for washing an aquaculture basket of scallops having high effect of removing foreign materials of the aquaculture basket without having an adverse effect on shellfish, since the installation to a small craft is easy because of small and light configuration, and the pressurized water may not directly hit the scallops in the aquaculture basket.SOLUTION: The present invention provides an apparatus for washing an aquaculture basket for use in the aquaculture of shellfish. The apparatus is characterized by including: a body; a flow path of the pressurized water; and a head connected to the body by a rotating shaft, rotated around the rotating shaft by power from a power source, and having a nozzle for injecting the pressurized water from the flow path and forming the pressurized water flow. The head rotates around the rotating shaft at a predetermined angle range so that the pressurized water flow injected from the nozzle may hit each of the aquaculture basket holding a three-dimensional shape, while crossing between width direction end of the aquaculture basket.SELECTED DRAWING: Figure 3

Description

  TECHNICAL FIELD The present invention relates to an apparatus and method for cleaning a culture rod used for shellfish culture, and more specifically, a pressurized water stream sprayed from a nozzle onto a pyramid-shaped or cone-shaped culture rod used for scallop culture. The present invention relates to an apparatus and a method for cleaning seaweed and other living organisms attached to a cultured trough.

  In aquaculture of scallops, various types of aquaculture such as round trout, pocket trout, and Zabton trout are used. A variety of sizes, shapes, and mesh sizes are used for the cultured trout depending on the growth stage of the scallops. In the aquaculture used in the ocean, the shark itself becomes a good breeding place for marine organisms, and foreign organisms such as seaweed, oysters, barnacles, etc. adhere to the cultivated cocoon. If foreign matter adheres to the cultured trout, water permeability is hindered, which may adversely affect the supply of oxygen and bait to the scallops. Therefore, it is necessary to periodically remove the foreign matter adhering to the culture trough, and for this purpose, operations such as exchanging or cleaning the farm trough are performed as necessary.

  The exchanging of the aquaculture salmon is a method in which the aquaculture salmon is lifted onto the ship, the scallops are transferred to another well-cleaned aquaculture salmon, and the aquaculture salmon is dropped into the sea. The cultured culm with foreign objects attached is taken home, washed, and reused. On the other hand, the cleaning of the cultured trough is a method of cleaning the cultured trough by sprinkling high-pressure seawater with the scallops on the ship with the cultured trough pulled up. In this method, scallops are washed at the same time as the cultured trout and returned to the sea after washing. Techniques relating to such a method are disclosed in, for example, Patent Document 1 and Patent Document 2.

  In general, the cleaning of farm ridges is often used on large ships. This is because in washing, the cultured sea bream is washed by sprinkling high-pressure seawater made by pressurizing the assembled sea water from above or below with a special washing machine. It is large and heavy and can only be loaded on large ships. For example, the device described in Patent Document 1 or Patent Document 2 is such a large and heavy device. However, the cleaning of the cultured trough is a method with better workability compared to the replacement, so that it is desirable that it can be used even on a small boat, and a compact cleaning device that can be used on such a small boat is also required.

  In particular, there is a large demand for cleaning in an area called a semi-shell (also called a mid-shell) that mass-produces small scallops with a shell size of around 6 cm. When producing large-sized scallops, when they grow to around 5 cm, it is common to replace the cultured culm with another type of cultivated culm and cultivate for another year. However, when mass-producing small scallops, even if they are replaced, the subsequent culture period is as short as 2 months. Is common. Therefore, in these areas, the same cultured salmon is often washed and used without replacing it with another cultured salmon until it becomes a semi-shell, and the aquaculture salmon used is usually Zabuton salmon.

  As shown in FIG. 1, the Zabuton ridge 1 includes a bottom surface 2 typically formed of a quadrangular frame and a bottom mesh, and a side surface 3 formed by covering an upper outer periphery with four triangular side meshes. The plurality of quadrangular pyramids 4 are formed by connecting the top and bottom center of each of the troughs 4 with a suspension rope 8. The Zabuton kite 1 is typically used as one set in which ten to twenty kites 4 having a side of the bottom surface 2 of 35 cm are connected vertically by a hanging rope 5 with a spacing of 50 cm.

  The conventional method for cleaning such Zabuton's dredger on a ship is as follows. First, underwater dredging is lifted on a ship by a lifting device. A cleaning device is installed on the ship, and the lifted salmon is lined up on a conveyor provided at the entrance of the cleaning device with the shells left inside and foreign matter attached to it. It is sent. In the cleaning apparatus, as shown in FIG. 2, high-pressure seawater is ejected from nozzles provided in the upper part or upper and lower parts of the apparatus, and foreign matter adhering to the surface of the straw is removed by the ejected high-pressure seawater. The dredger that has been washed and carried out from the outlet of the washing apparatus is returned to the sea.

  In such a conventional method, a table for placing a kite lifted from the sea, a conveyor for moving the kite into and out of the cleaning device, a washing device having a size that can accommodate a kite, a conveyor, a nozzle and the like inside There is a need for a cleaning system having various devices and parts, such as a main body, a drainage mechanism for collecting and draining cleaning wastewater, and a discharging mechanism for discharging foreign matter removed from the dredger in the cleaning device. It was difficult to reduce the size and weight of the entire system.

  Further, in the conventional method, as shown in FIG. 2, in the cleaning device, seawater is jetted from the rotary nozzle to the flattened ridges as if the mesh and scallops were crushed. . When the seawater has a high pressure, the seawater directly hits the scallops inside and enters the shells, and the scallops may die due to the influence. In order to prevent such a situation, the pressure of seawater must be kept low (about 2 MPa to about 3 MPa), but at such a pressure, the removal efficiency of the foreign matter adhering to the soot is poor. In order to improve the removal efficiency, it is necessary to use a large amount of seawater such as at least about 200 to 300 liters / minute, and a pump and an engine for boosting such a large amount of seawater to about 2 MPa to about 3 MPa. Must be large, and using such large pumps and engines also leads to poor fuel consumption.

  Furthermore, the conventional cleaning system requires at least two workers, one who pulls the kite from the sea and sends it into the cleaning device, and the other who bundles the kite that came out of the cleaning device and returns it to the ocean. Also, labor costs are large.

JP 52-67992 A JP-A-2004-24058

  In view of the above problems, the present invention is small and light, so that it can be easily mounted on a small boat, and scallops in the aquaculture cage are not directly exposed to pressurized water, so the shells are not adversely affected. It is an object of the present invention to provide an apparatus and a method for cleaning cultured scallop shells that have a high foreign matter removal effect.

  An object of the present invention is to allow a jet of pressurized water to strike against a cultured trough that retains a pyramidal or conical three-dimensional shape while crossing between end portions in the width direction. Solved.

  In one aspect of the present invention, the present invention provides an apparatus for cleaning a cultured trough used for shellfish cultivation. This device is connected to the body part, the flow path of pressurized water and the body part by a rotating shaft, rotates around the rotating shaft by the power from the power source, and injects pressurized water from the flow path to form a pressurized water flow And a head having a nozzle for the purpose. The head rotates in a predetermined angle range so that the pressurized water flow ejected from the nozzle strikes each of the cultured troughs in a three-dimensional shape while crossing between the widthwise ends of the cultured troughs. Rotate around an axis.

  The aquaculture rod has a pyramid or conical shape in which a bottom surface is formed by a substantially polygonal or circular frame and a bottom net, and a side surface is formed by covering the upper outer periphery with a side net in a pyramid or conical shape. A plurality of reeds and a suspension rope for connecting the top and bottom center of each of the reeds may be provided. Further, the head hits each of the cultured troughs in a state where the pressurized water flow ejected from the nozzles retains a pyramid shape or a conical shape while crossing between the widthwise ends of the cultured troughs. It can be rotated around a rotation axis within a predetermined angular range so that each of the culture rods is rotated around the suspension rope by the force of the pressurized water flow. In this specification, “the state in which a three-dimensional shape is maintained” means that when the cultured shark is lifted from the water while being suspended by the hanging rope, the cultured shark has a unique shape, such as a pyramid shape or a conical shape. The state when it has a shape such as.

  The head may have a plurality of nozzles. The plurality of nozzles can be provided on the head in such a positional relationship that the pressurized water flow ejected from each of the plurality of nozzles hits the culture trough in the width direction of the farm trough, or is ejected from each of the plurality of nozzles. The pressurized water flow can be provided on the head in a positional relationship such that the pressurized water flow is aligned with the height direction of the culture rod and hits the culture rod.

  The pressurized water flow from the nozzle is preferably jetted obliquely downward from the horizontal direction. At least one of the plurality of nozzles may be provided on the head so that the sprayed pressurized water flow directly hits the bottom surface of the culture rod. The device is preferably arranged so as to protrude outwardly from the vessel that pulls the underwater culture trough.

  In another aspect of the present invention, the present invention provides a method for cleaning a cultured trough used for shellfish cultivation. In this method, a pressurized water stream is applied across each of the steps of lifting the cultured trout from the water and each of the cultured trough having a three-dimensional shape in the middle of being lifted so as to cross between the widthwise ends of the cultured trough. And a step of removing foreign matter adhering to the culture culm.

  The culture trough washed by the culture trough cleaning apparatus and method according to the present invention has a bottom surface formed by a substantially polygonal or substantially circular frame and a bottom net, and the upper outer periphery is covered with a side net in a pyramid shape or a conical shape. Thus, a plurality of pyramid-shaped or conical-shaped ridges whose side surfaces are formed, and a suspension rope for connecting the top and bottom center of each of the plurality of ridges to each other can be provided. The step of lifting the cultured trough includes lifting the cultured trough while maintaining its pyramidal or conical shape, and the step of removing foreign matter is a widthwise direction with respect to each of the cultured trough being lifted. By applying a pressurized water flow across the ends, the foreign water adhering to the cultured rice cake is removed by the pressurized water flow while rotating the cultured rice cake around the suspension rope by the force of the pressurized water flow that hits the cultured rice cake. To include.

  The pressurized water stream is composed of a plurality of strips, and a plurality of strips of the pressurized water stream can be applied to each of the cultured troughs in the width direction of the cultured trough, or the plurality of pressurized water streams can be applied to the height of the cultured trough. It can be placed in the direction and applied to each of the cultured troughs.

  It is preferable that the pressurized water flow is applied to each of the cultured troughs from obliquely above each of the cultured troughs. At least one of the plurality of pressurized water streams can be directly applied to the bottom surface of the culture rod.

  According to the present invention, even in a small ship that cannot be equipped with a conventional cleaning device, foreign matter adhering to the scallop cultivating slag can be easily and easily removed on the ship without adopting the culturing scab replacement method. It can be effectively removed.

It is a figure which shows the Zabuton moth which is 1 type of the cultured scallop. It is a figure which shows the state of the cultivation trough when high pressure seawater hits inside the conventional washing | cleaning apparatus. It is the schematic which shows the whole culture culm washing device concerning one embodiment of the present invention. It is a schematic top view (a), a front view (b), and a bottom view (c) of the main body of the culture paddle washing apparatus according to one embodiment of the present invention. It is a figure which shows the motion of the culture tank by the pressurized water flow injected from the head of the culture tank cleaning apparatus which concerns on one Embodiment of this invention. It is a figure which shows the use condition of the culture tub washing | cleaning apparatus which concerns on one Embodiment of this invention. It is a figure which shows the usage example of the culture tub washing | cleaning apparatus which concerns on one Embodiment of this invention. It is the figure which shows the schematic of the main body of the culture tub washing | cleaning apparatus which concerns on another embodiment of this invention, and its use condition.

Hereinafter, a culture culm cleaning apparatus and a cleaning method of the present invention will be described in detail with reference to the drawings.
Initially, the structure of the culture tub washing | cleaning apparatus 10 concerning one Embodiment of this invention is demonstrated. FIG. 3 shows a schematic configuration of the culture paddle cleaning apparatus 10. 3 is a view of the disc 58, the connecting plate 56, and the transmission member 52 as seen from a direction parallel to the rotation axis of the disc 58, and the movement of these members will be described. Is for. 4A and 4B are diagrams schematically showing the main body 20 of the culture tub cleaning apparatus 10, in which FIG. 4A is a top view, FIG. 4B is a front view, and FIG. 4C is a bottom view.

  The culture culm washing device 10 generates a main body 20 provided with a head 24 that rotates around a rotation axis, a seawater pressure feeding pipe 30 that sends pressurized seawater to the main body 20, and power for rotating the head 24. And a power transmission unit 50 for transmitting the power generated by the power generation unit 40 to the main body 20. The culture tub cleaning apparatus 10 further includes an attachment portion 60, and can be attached to a ship that pulls up the underwater culture ridge 1 by the attachment portion 60.

  As shown in FIG. 4, the main body 20 includes a body portion 21, a rotation shaft 23 that passes through the body portion 21, and a head 24 that is connected to the rotation shaft 23 and has a neck portion 29 that can rotate with respect to the body portion 21. And a head drive unit 28 that is connected to the rotation shaft 23 on the opposite side of the body 21 from the head 24 and is rotatable with respect to the body 21. The rotating shaft 23 is accommodated in a space provided inside the trunk portion 21. The rotary shaft 23 is provided with a flow path 22 therein, and is provided with a plurality of openings 23a at a substantially central portion of the side surface (four openings 23a in FIG. 4B). ). A space 21c is provided around the opening 23a. Pressurized seawater pumped from the seawater pumping pipe 30 enters the flow path 22 from the space 21 c through the opening 23 a and is supplied to the head 24. It is preferable that ring-shaped water sealing members 21 a and 21 b are provided above and below the space 21 c around the opening 23 a so that pressurized seawater does not leak from the space 21. The head 24 is connected to the rotary shaft 23, and has a neck portion 29 having a flow path 22 through which pressurized seawater passes, two jet pipes 25a and 25b provided on the sides of the neck section 29, and jet pipes 25a and 25b. Nozzles 26a and 26b provided in each of the first and second nozzles. The pressurized seawater supplied to the head 24 passes through the flow path 22 inside the neck portion 29 and the injection pipes 25a and 25b, and is injected from the nozzles 26a and 26b to become a pressurized water flow.

  The number and shape of the ejection pipes and the number of nozzles are not limited to the number of the present embodiment. For example, the injection pipes 25a and 25b illustrated in FIG. 4C may be linear injection pipes, and nozzles may be provided on the side surfaces of the injection pipes. Alternatively, the jet pipes 25a and 25b may be longer jet pipes, and a plurality of nozzles may be provided in the middle of each. Alternatively, the neck portion 29 of the head 24 may be lengthened, and a plurality of injection pipes each having a nozzle may be provided on the side of the neck portion 29.

  When a pressurized water stream is ejected from a plurality of nozzles, each of the pressurized water streams is preferably ejected in parallel with a plane perpendicular to the rotation shaft 23 as the head 24 rotates. For example, in the case of the embodiment shown in FIG. 4, when the head 24 rotates, the two pressurized water flows are parallel to the plane perpendicular to the rotation axis 23 from the respective nozzles 26a and 26b in the width direction of the culture rod 1. It will be injected in a line. By jetting the pressurized water flow in this way, the pressurized water flow hits each of the ridges 4 lifted from the sea surface and moving upward while maintaining its three-dimensional shape as will be described later. Therefore, the soot can be efficiently washed. The direction in which the pressurized water flow is ejected is not limited to the direction of all the water flows being parallel to a plane perpendicular to the rotation axis 23, and a plurality of directions as in another embodiment to be described later. Some directions of the strip pressurized water flow may be different from other pressurized water flows.

  The head drive unit 28 has two arm portions 28 a and 28 b that protrude in opposite directions to the outside of the body portion 21, and is connected to the neck portion 29 of the head 24 via the rotation shaft 23. One arm 28 a is connected to the transmission member 52 of the power transmission unit 50, and the other arm 28 b is connected to the pullback member 54 of the power transmission unit 50. As the transmission member 52, for example, a chain can be used, and as the pulling-back member 54, for example, a spring can be used. In the present embodiment, the head driving unit 28 is provided on the opposite side of the body 21 with respect to the head 24, but may be directly attached to the head 24.

  As shown in FIG. 3, the power generation unit 40 includes a motor 42 that is a power source and a shaft 44, and the shaft 44 is connected to a disk 58 of the power transmission unit 50. The disc 58 is further connected to the connecting plate 56. The power of the motor 42 rotates the disk 58 via the shaft 44. The disc 58 and the connecting plate 56 form a crank mechanism, and the disc 58 is connected to one end of the connecting plate 56 at any position away from the center in the outer peripheral direction. The other end of the connecting plate 56 is connected to the transmission member 52.

  The aquaculture rod cleaning apparatus 10 can also have an attachment portion 60 having attachment arms 62 and 63, one end of which is fixed at any position of the ship, and by fixing the attachment portion 60 to the ship. The main body 20 can be attached so as to protrude outward from the ship. The aquaculture rod cleaning apparatus 10 may be provided with angle adjustment flanges 64 a and 64 b, one of which is fixed to the end of the mounting arm 62 of the mounting portion 60 and the other is fixed to the seawater pressure feeding pipe 30. preferable. The angle adjustment flanges 64a and 64b are circular flanges provided with a plurality of bolt holes in the circumferential direction, and the position of the corresponding bolt holes of the angle adjustment flanges 64a and 64b is changed to attach the main body 20 to the attachment arm 60. The angle can be adjusted.

  For example, the height of the main body 20 is about 90 cm, the length from the main body 20 to the mounting portion 60 is about 90 cm, and the weight is about 40 kg. On the other hand, a conventional dedicated washing machine installed on a ship has, for example, a height of 160 cm, a width of 100 cm, a depth of 150 cm, and a weight of about 320 kg. Therefore, it can be seen that the culture tub cleaning apparatus 10 according to the present invention is significantly reduced in size and weight as compared with the conventional dedicated cleaning machine.

The culture culm washing apparatus 10 is configured as described above, and the operation thereof is as follows.
The disk 58 attached to the shaft 44 is rotated in the direction of the arrow D1 by the power of the motor 42 as shown in the frame in FIG. The connecting plate 56 moves in the direction D2 as the disc 58 rotates, and pulls the transmission member 52 in the direction D3. When the transmission member 52 is pulled, the head drive unit 28 of the main body 20 connected to the transmission member 52 rotates in the direction of the arrow D4. As a result, the head 24 also rotates in the direction of the arrow D4. At this time, the pull-back member 54 extends and exerts a contracting force in the direction of the arrow D6 on the head driving unit 28.

  When the disk 58 further rotates in the direction D1, the connecting plate 56 moves in the direction of the arrow D5 as shown in the frame in FIG. If it does so, the tension | tensile_strength of the transmission member 52 will fall and the head drive part 28 will rotate in the direction of arrow D7 with the contraction force of the withdrawing member 54. FIG. Along with the rotation of the head driving unit 28, the head 24 also rotates in the direction of the arrow D7. The head 24 rotates in the direction of the arrow D7 until the pullback member 54 has a natural length. When the disc 58 further rotates in the direction D1, the connecting plate 56 moves again in the direction of the arrow D2, and then the above-described series of operations is repeated. As a result, the head 24 rotates alternately in the directions of arrows D4 and D7 shown in FIG. 3, and from the nozzles 26a and 26b, the moving plane of the nozzles 26a and 26b (that is, a plane perpendicular to the rotating shaft 23). ) In parallel to the width direction of the culture rod 1, the pressurized water flow is jetted.

  Referring now to FIG. 5, FIG. 5 is a diagram illustrating the movement of the ridge 4 when the pressurized water flow F sprayed from the head 24 of the cultured culvert washing apparatus 10 is hit. The angular range of rotation of the head 24 can be appropriately determined according to the size of the culture tub 1 to be cleaned and the distance between the nozzle 26 and the culture tub 1. The angular range of rotation of the head 24 maximizes an angle such that the pressurized water flow Fb ejected from at least the right nozzle 26b is still hitting the culture rod 1 when rotated counterclockwise as shown in FIG. As shown in FIG. 5 (b), it is preferably adjusted so as to maximize the angle at which the pressurized water flow Fa injected from at least the left nozzle 26a is still hitting the culture rod 1 when rotated clockwise. . In this way, the pressurized water flow F hits the cultured tub 1 while crossing between the end portions in the width direction of the cultivated tub 1. The length of the transmission member 52 and the natural length of the pull-back member 54 are determined so that the range of the rotation angle of the head 24 is adjusted to such a preferable range.

  Referring now to FIG. 6, FIG. 6 is a diagram illustrating a usage state of the culture culm cleaning apparatus 10. As described above, the aquaculture rod cleaning apparatus 10 is attached to the ship by fixing one end of the attachment part 60, which is not shown in the figure, to any position of the ship for the sake of clarity. It is done. As shown in FIG. 6, when the culture culm washing device 10 is attached to a ship, the pressurized water flow F strikes each side surface 3 of the cocoon 4 holding a three-dimensional shape in the middle of being pulled up from the sea obliquely from above. Are preferably attached. Alternatively, the injection pipes 25a and 25b may be attached at an angle with respect to the neck portion 29 so that the pressurized water flow F strikes each side surface 3 of the flange 4 from obliquely above, and the nozzles 26a and 26b are attached to the injection pipe 25a. , 25b may be attached with an angle. In any case, the pressurized water flow F from the nozzles 26a and 26b is jetted obliquely downward from the horizontal direction.

  In FIG. 6, the culture rod cleaning apparatus 10 is arranged at a position where at least the main body 20 protrudes outward from the ship and the pressurized water flow F is jetted toward the ship, but is not limited thereto. It is not something. For example, the main body 20 can be arranged at a position where the pressurized water stream F is sprayed along the side surface of the ship and hits the culture tub 1, or the pressurized water stream F is sprayed in a direction away from the side surface of the ship and the cultivating basket 1. It can also be arranged at a position corresponding to.

Next, a method for cleaning the cultured culm cleaning device 10 according to an embodiment of the present invention will be described along with the operations of the cultured culm 1 and the cultured culm cleaning device 10.
First, the culture rod cleaning apparatus 10 is arranged so that the main body 20 is located outside the ship, and preferably the pressurized water flow F is jetted toward the ship. The orientation of the main body 20 is adjusted so that the pressurized water flow from the nozzles 26a, 26b is jetted obliquely downward, more preferably about 45 ° downward from the horizontal direction.

  The engine and pump mounted on the ship are operated to pressurize the seawater, and the pressurized seawater is supplied to the seawater pressure feed pipe 30 of the culture culvert washing apparatus 10. In the present invention, as shown in FIG. 6, the aquaculture rod 1 having a three-dimensional shape of a pyramid or a cone from being pulled up from the sea by the hanging rope 5 to being wound up by the lifting machine. On the other hand, since the pressurized water flow F is applied, the pressurized seawater does not directly hit the scallops on the bottom surface 2 away from each side surface 3 of the trough 4. Therefore, the risk of seawater entering the shell is greatly reduced compared to conventional cleaning devices. Therefore, in the culture tub cleaning apparatus according to the present invention, the pressure of seawater can be increased, and the cleaning effect of the culture tub 1 can be enhanced even with a small amount of water. In the present invention, the pressure of seawater can be about 4 MPa to about 6 MPa, and the amount of water used during washing can be about 60 liters / minute to about 100 liters / minute. The pump for using the pressurized seawater having such pressure and water amount and the engine for driving the pump can be reduced in size and weight. In the case of the conventional cleaning device, for example, an engine having an output of about 35 kW, a length of 1.3 m, a width of 1.1 m, a height of 1.2 m, and a weight of about 700 kg is required. In the case of the soot washing device, for example, an engine having an output of about 6 kW, a length of 1.1 m, a width of 0.6 m, a height of 0.6 m, and a weight of about 125 kg may be used.

  The power generation part 40 of the culture culm washing apparatus 10 is operated. The power generated by the power generation unit 40 rotates the head 24 via the power transmission unit 50, the head drive unit 28 of the main body 20, and the rotation shaft 23. As shown in FIGS. 3 and 4, the seawater pressurized by the pump is supplied to the main body 20 of the culture tub cleaning apparatus 10 through the seawater pressure feeding pipe 30. The pressurized seawater passes through the flow path 22 in the main body 20 and the flow path 22 in the neck portion 29 of the head 24, and is injected as a pressurized water flow F from nozzles 26a and 26b provided in the injection pipes 25a and 25b. . The pressurized water flow F is ejected from the nozzles 26a and 26b of the rotating head 24 in parallel with the moving plane of the nozzles 26a and 26b.

  Next, the raising machine is operated and the culture rope 1 is drawn up from the sea by winding the suspension rope 5 with the lifting machine. As shown in FIG. 6, the plurality of reeds 4 of the aquaculture reed 1 connected by the hanging rope 5 are in a state where the bottom surface 2 is substantially horizontal in the middle of being lifted from the sea surface by a lifting machine. The original three-dimensional shape is maintained, and the horizontal shape can be freely rotated around the apex of the cone shape and the hanging rope 5.

  As shown in FIG. 6, the pressurized water flow F sprayed from the nozzles 25 a and 25 b is applied to each of the baskets 4 being pulled up. As shown in FIG. 5, the two pressurized water flows F ejected from the nozzles 25 a and 25 b of the rotating head 24 are aligned in a row so as to cross between the widthwise ends of the plurality of ridges 4. It hits each side 3 of a plurality of ridges 4 from diagonally above. At this time, for example, when the pressurized water flow F hits the left side as shown in FIG. 5A, the rod 4 rotates clockwise around the apex of the cone shape and the suspension rope 5 by the force of the pressurized water flow F. When the pressurized water flow F hits the right side as shown in FIG. 5 (b), it rotates counterclockwise around the apex of the cone and the suspension rope 5 by the force of the pressurized water flow F. As a result, the pressurized water flow F that always crosses between the widthwise ends of each of the plurality of scissors 4 hits the side surface 3 of the scissors 4 that rotates to the left and right, and foreign matter adhering to the scissors 4 can be removed.

  Each of the plurality of anchors 4 from which foreign matter has been removed by the pressurized water flow F during the deep-sealing is pulled up on the ship by the lifter, and each of the lifted anchors 4 can be returned to the sea as it is. it can. For example, as shown in FIG. 7, a slide arranged continuously from the lifter can be provided on the ship, and each of the plurality of anchors 4 lifted by the lifter can be returned to the sea by the slide. . In the conventional cleaning apparatus and method in which a dedicated cleaning machine for cleaning the cultured tub 1 by sprinkling pressurized water is installed on the ship, the person who lifts the slag from the sea and sends it to the scourer, the sprouting from the outlet of the scourer At least two workers are necessary for the person who bundles and returns them to the sea, but in the culture paddy cleaning apparatus and the culture paddle cleaning method according to the present invention, only one worker is required.

  In the above-described embodiment, the head 24 is provided with the two nozzles 26 a and 26 b, and the pressurized water flow F is transmitted from the nozzles 26 a and 26 b to the rotating shaft 23 as the head 24 rotates around the rotating shaft 23. Jetted in parallel to a plane perpendicular to The two pressurized water streams F ejected from the two nozzles 26 a and 26 b hit each of the plurality of scissors 4 in a line in the width direction of the scissors 4. In this embodiment, as shown in FIG. 6, the pressurized water flow F strikes the ridge 4 from obliquely above.

  On the other hand, the head 24 can be configured as shown in FIG. In this embodiment, as shown in FIG. 8 (a), three injection pipes 25′a, 25′c and 25′e, 25′b, 25'd and 25'f are provided. Nozzles 26'a to 26'f are provided at the tips of the ejection tubes 25'a to 25'f. The pressurized seawater that has been pumped through the seawater pumping pipe 30 is supplied to the head 24 ′ through the flow path 22. A flow path 22 ′ communicating with the injection pipes 25′a to 25′f is provided at the neck portion 29 ′ of the head 24 ′, and the pressurized seawater is supplied to the flow path 22 ′ and the injection pipes 25′a to 25 ′. f is ejected from the nozzles 26 ′ a to 26 ′ f to become a pressurized water flow F.

  In this embodiment, as shown in FIG. 8 (b), the direction of the pressurized water flow F injected from some of the nozzles 26 ′ a to 26 ′ f is an angle with respect to a plane perpendicular to the rotation axis 23. Can also be provided. For example, the nozzles 26 ′ a and 26 ′ b are attached to the injection pipes 25 ′ a and 25 ′ b so that the pressurized water flow F is injected downward from a plane perpendicular to the rotation shaft 23, and the nozzles 26 ′ e and 26 ′ are attached. f can be attached to the injection pipes 25 ′ e and 25 ′ f so that the pressurized water flow F is injected upward from a plane perpendicular to the rotation axis 23. In addition, the direction of the pressurized water flow F is not limited to adjusting by the direction of nozzle 26'a-26'f provided in injection tube 25'a-25'f, but injection tube 25'a-25 Adjustment may be made by attaching 'f to the neck 29' at an angle.

  In this embodiment, the three strips of pressurized water flow F sprayed from the nozzles 26 ′ a, 26 ′ c and 26 ′ e are arranged in a line in the height direction of the cultivating rod 1 and hit the culturing rod 1, and the nozzle 26 The three strips of pressurized water flow F sprayed from 'b, 26'd and 26'f can also hit the culture rod 1 in a line in the height direction of the culture rod 1. Further, the pressurized water flow F sprayed from the nozzles 26'a to 26'd is made to hit the side surfaces of the plurality of ridges 4 in a state of retaining the three-dimensional shape in the middle of being drawn, and from the nozzles 26'e and 26'f The jetted pressurized water flow F can directly hit the bottom surface of the ridge 4. Therefore, the foreign material adhering to each bottom face of the ridge 4 can also be effectively removed.

1: Culture rod 2: Bottom surface 3: Side surface 4: Individual rod 5: Hanging rope 10: Culture rod cleaning device 20: Main body 21: Body portion 21a, 21b: Sealing member 22, 22 'for water stop 23: Rotating shaft 23a: Opening 24, 24 ': Head 25, 25': Injection pipe 26, 26 ': Nozzle 28: Head drive part 28a, 28b: Arm part 29, 29': Neck part 30: Seawater pressure feed pipe 40: Power generation unit 42: motor 44: shaft 50: power transmission unit 52: transmission member 54: pullback member 56: connecting plate 58: disc 60: mounting portion 62, 63: mounting arm 64: angle adjustment flange 66: pulling spring mounting Part F: High-pressure water flow

Claims (13)

An apparatus for cleaning a cultured trough used for shellfish cultivation,
The torso,
A flow path of pressurized water;
A head connected to the body portion by a rotary shaft, rotated around the rotary shaft by power from a power source, and having a nozzle for injecting pressurized water from the flow path to form a pressurized water flow;
With
The head is arranged around the rotation axis so that the pressurized water flow ejected from the nozzle hits each of the cultured troughs in a three-dimensional shape while crossing between the widthwise ends of the cultured troughs. Rotate,
apparatus. The aquaculture rod has a pyramid or conical shape in which a bottom surface is formed by a substantially polygonal or circular frame and a bottom net, and a side surface is formed by covering the upper outer periphery with a side net in a pyramid or conical shape. A plurality of reeds and a suspension rope that connects the top and bottom center of each of the reeds;
In the head, the pressurized water sprayed from the nozzle hits each of the cultured troughs in a state of holding a pyramidal or conical shape while crossing between the widthwise ends of the cultured troughs, Rotating around the axis of rotation so that each of the aquaculture rods rotates around the hanging rope by the force of the flow;
The apparatus of claim 1.   The head includes a plurality of nozzles, and the plurality of nozzles are provided in the head in a positional relationship such that the pressurized water flow ejected from each of the plurality of nozzles hits the culture tub aligned in the width direction of the culture tub. The apparatus according to claim 1 or 2.   The apparatus according to claim 1 or 2, wherein the pressurized water flow from the nozzle is jetted obliquely downward from the horizontal direction.   The head includes a plurality of nozzles, and the plurality of nozzles are provided in the head in a positional relationship such that the pressurized water flow ejected from each of the plurality of nozzles hits the culture tub along the height direction of the culture tub. The device according to claim 1 or claim 2.   The apparatus according to claim 5, wherein at least one of the plurality of nozzles is provided on the head such that the jetted pressurized water stream directly hits a bottom surface of the culture tub.   The apparatus of Claim 1 or Claim 2 arrange | positioned so that it may protrude outward from the ship which pulls up the culture tank in the sea. A method for cleaning a cultured trough used for shellfish cultivation,
The process of lifting the cultured trout from the water;
Foreign matter adhering to the cultured trough is removed by applying a pressurized water flow across each end of the cultured trough in the width direction with respect to each of the cultured trough having a three-dimensional shape in the middle of being pulled up And a process of
Including methods. The aquaculture rod has a pyramid shape or a conical shape in which a bottom surface is formed by a substantially polygonal or substantially circular frame and a bottom net, and a side surface is formed by covering the upper outer periphery with a side net in a pyramid shape or a conical shape. And a suspension rope that connects the top and bottom center of each of the plurality of scissors,
The step of lifting the cultured trough includes lifting the cultured trough while maintaining its pyramidal or conical shape;
The step of removing the foreign matter includes applying a pressurized water flow so as to cross between the end portions in the width direction with respect to each of the cultured troughs that are being lifted, by the force of the pressurized water flow that hits the cultured troughs. Removing the foreign matter adhering to the culture trough by a pressurized water flow while rotating the culture trough around the hanging rope,
The method of claim 8.   The method according to claim 8 or 9, wherein the pressurized water stream is composed of a plurality of strips, and the plurality of strips of the pressurized water stream is applied to each of the cultured troughs along the width direction of the cultured troughs.   The method according to claim 8 or 9, wherein a pressurized water stream is applied to each of the cultured ridges from obliquely above each of the cultivated ridges.   The method according to claim 8 or 9, wherein the pressurized water stream is composed of a plurality of strips, and the plurality of strips of the pressurized water stream is applied to each of the cultured troughs along the height direction of the cultured troughs. The method according to claim 12, wherein at least one of the plurality of pressurized water streams is directly applied to a bottom surface of the culture trough.

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