JP4130966B2 - Automated culture and feeding system for fish-feeding organisms - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present inventionRotifer, a feed organism for fish farmingA system for culturing and feeding a fishOf the rotiferThe present invention relates to an automatic culture / feeding system for fish-feeding organisms configured to automatically and continuously execute culture / feeding.
[0002]
[Prior art]
  Conventionally, fish-feeding organisms such as rotifers and floating diatoms are generally used as initial feeds for fish and shellfish in the production of seedlings in the fishery industry. In order to carry out such seedling production, it is indispensable to stably obtain fish feed organisms, and techniques for culturing in large quantities have been devised in order to stably obtain these fish feed organisms. For example, it is as shown in Japanese Patent Publication No. 4-75735. Then, the culture system for the fish-feeding organism includes feeding the culture-biological feed to the culture tank, culturing the culture organism, harvesting the culture organism from the culture tank, transferring and concentrating the culture organism, washing the culture tank, and the culture tank. It consists of a number of work processes such as feeding water and feeding the cultured organisms to the fish tank.
[0003]
[Problems to be solved by the invention]
  As mentioned above, the culture and feeding system for fish-feeding organisms is composed of many work processes, but most of the work was done manually, so the cultivation work requires a lot of labor and personnel. This was the cause of increased seed production costs. In addition, since the culture work is performed manually, individual differences occur in the work content or erroneous operations occur, and the culture state varies and is not stable. In addition, some of the steps of the culture work are automated automatically, but they can only be controlled under certain conditions, or they are only controlled semi-automatically. There were few.
[0004]
  In particular, since the culture tank is very dirty, if the washing operation is performed manually, it takes heavy labor and requires an excessive work time. Further, even when washing is performed using a high-pressure washing machine, a lot of washing time is required, the washing power is insufficient, and the washing water is ejected at a high pressure, so that the equipment may be damaged. In addition, the operation of the culture tank heating / cooling device, water supply / drain valve, etc., was manually performed according to the level of the culture tank confirmed by the operator's visual observation, and therefore it took a lot of time to operate. Or misoperation occurred. In addition, since the harvest of cultured organisms has been performed with a harvesting port provided at the bottom of the culture tank, it is necessary to install the culture tank at a high position from the floor, and the culture tank has a mezzanine structure. As the construction cost increased, it was difficult for the operator to move between the floor and the culture tank when working in the culture tank.
[0005]
  In addition, in the concentration step, the culture organisms do not pass through, and the culture solution containing the culture organisms is continuously supplied into the concentration net through which moisture can pass to increase the density of the culture organisms in the concentration net. Concentrated, but when the culture organisms become denser, the concentration net becomes deficient in oxygen, and the soil attached to the culture organisms is not sufficiently washed by simply supplying the culture solution to the next aquarium. There is a risk of being transferred and contaminating the next process. Furthermore, the cultured organisms are often transferred to the next process together with the concentrated net. In this case, the density of the cultured organisms is very high because water in the concentrated net is removed to such an extent that the concentrated net can be carried manually. It becomes higher and the viscosity of the culture becomes higher. Thereby, the oxygen concentration in a culture solution falls or a physical damage is added to a culture organism, and it interferes with the survival of this culture organism. Moreover, if the cultured organisms in the concentrated net are directly sucked with a pump or the like and harvested, the cultured organisms adhere to the inner wall of the concentrated net as the water level in the concentrated net decreases, and this will hinder the survival of the cultured organisms. .
[0006]
[Means for Solving the Problems]
  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.
[0007]
  In claim 1, it is at least a fish feed organismRotiferCulturing process, cultured fish feed organismThe rotifer is darkConcentrating process to shrink, washing process to wash each aquarium constituting each process, and feed organism for fish farming to fish tankRotiferIn an automatic culture / feeding system for fish-feeding organisms configured to automatically perform a series of feeding processes for feedingBased on the calculation data of the amount of rotifer in the culture water tank in the culture step, the rotifer in the culture water tank is post-processed A control system for determining a transfer amount of a culture solution when transferred to a concentration washing water tank in a concentration step, wherein a water level detection means for detecting a water pressure at a bottom portion by a pressure gauge, a microscope, etc. A density measuring device for measuring the density of the culture solution measured by the measuring device is disposed, and the water level of the culture tank detected by the water level detecting means and the density of the feed organism for fish farming formed in the density measuring device, Detecting a control condition that is the number of solid rotifers that are prey organisms for fish farming stored in the culture tank, and calculating the amount of the culture solution to be transferred according to the detected control condition, System to calculate the water level of the culture water tank, start the transfer by operating the pump, stop the operation of the pump and end the transfer work when the water level of the culture water tank reaches the calculated water level after transfer To automatically controlIs.
[0008]
  In Claim 2, In the automatic culture and feeding system of the feed organism for fish farming of Claim 1, the washing | cleaning apparatus which wash | cleans each water tank which comprises each process of an automatic culture and a feeding system by the said washing | cleaning processThe cleaning device isA cleaning nozzle that rotates at least by the water pressure of the cleaning water that is jetted, and a cleaning brush that is attached to the rotating shaft of the cleaning nozzle and rotates together with the cleaning nozzle. It is configured so as not to contact the wall surface of each water tank but to contact the wall surface of each water tank at the start of rotation, and to maintain the contact state with the wall surface of each water tank during rotation.
[0009]
  In Claim 3, In the automatic culture | cultivation and feeding system of the feed organism for fish farms of Claim 1, in order to transfer the feed organism for fish farms from the culture tank which comprises the said culture | cultivation process to the concentration tank which comprises a concentration process The transfer means is configured by a reversible pump, and by the reversible pump, the direction of transferring the fish feed organism from the culture tank to the concentrated water tank, and each process of the automatic culture / feeding system of the fish feed organism from the concentrated water tank are configured. It can be transported in both directions of transporting to other water tanks.
[0010]
  In claim 4, in the automatic culture and feeding system for fish feed organisms according to claim 1, in the concentration step, the fish feed organisms do not pass through and the filth and water can pass through the concentration net. The cultured fish feed organism and the biological cleaning water are continuously supplied, and when the cultured fish feed organism and the biological cleaning water are supplied into the concentration net, the shaking attached to the upper end of the concentration net is supplied. The moving arm starts to move up and down, and along with this, the concentration net is swung around the support shaft, thereby concentrating the fish feed organism, cleaning the fish feed organism, and feeding the fish feed organism. The oxygen supply to the water is performed at the same time.
[0011]
  In claim 5, in the automatic culture / feeding system for fish-feeding organisms according to claim 1, corresponding means for handling troubles occurring in the automatic culture / feeding system and restoring to a normal automatic control state When a trouble occurs, a plurality of countermeasures are sequentially implemented until a normal automatic control state is restored.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
  Next, an embodiment of the present invention will be described. FIG. 1 is a diagram showing a system flow of an automatic culture / feeding system for fish feed organisms according to the present invention, FIG. 2 is an overall plan view showing an automatic culture / feeding system for fish feed organisms, and FIG. 3 is also a feed for fish farming. FIG. 4 is a side view showing a culture water tank, FIG. 5 is a side view showing a rotifer nutrient enhancement tank, FIG. 6 is a side view showing a cleaning device, and FIG. 7 is a cleaning. FIG. 8 is an enlarged view showing an end cleaning nozzle of the apparatus, FIG. 8 is a plan view showing an ejection direction from the end cleaning nozzle for cleaning water, and FIG. 9 is a side view showing a culture water tank and various pipes for performing culture work 10 is a side view showing the concentration washing tank, FIG. 11 is a view showing the state of rotifer transfer by the rotifer transfer pump, and FIG. 12 is a view showing a system recovery flow by the means for handling trouble.
[0013]
  First, a description will be given of a schematic configuration of an automatic culture / feeding system for a fish-feeding organism of the present invention configured to culture and feed a rotifer as a fish-feeding organism, for example. 1 to 3, chlorella serving as a rotifer feed is concentrated and stored in the concentrated chlorella tank 1. Rotifers are cultivated in a plurality of culture tanks 2, 2..., And chlorella in the concentrated chlorella tank 1 is contained in each culture tank 2, 2. Being fed to. The rotifer cultured at a high density in the culture tank 2 is a concentrated washing tank 3 having both functions of a concentration tank for concentrating rotifers and a washing tank for washing rotifers by the rotifer transfer pumps 3a and 3a. -It is transferred to 3 and concentrated and washed in the concentrated washing water tank 3. The rotifer which has been concentrated and washed in the concentrated washing water tank 3 is transferred to the rotifer nutrient-enhanced water tanks 4 and 4 by the rotifer transfer pumps 3a and 3a, and concentrated chlorella and nutrition are given in the rotifer nutrient-enhanced water tank 4, It is further cultured with enhanced nutrition. In addition, a part of the rotifer that has been concentrated and washed in the concentrated washing water tank 3 is planted into the culture water tank 2 by the rotifer transfer pump 3 a and is cultured again in the culture water tank 2. The rotifer fortified in the rotifer nutrition enhanced water tank 4 is again transferred to the concentrated washing water tank 3 by the rotifer transfer pumps 3a and 3a, and concentrated and washed. Then, the rotifer which has been concentrated and washed is transferred to the rotifer feeding tank 5 by the rotifer transfer pumps 3a and 3a, and then from the rotifer feeding tank 5 to the feeding tanks 6 and 5a by the feed transfer pumps 5a and 5a. Feeded 6 ...
[0014]
  In addition, since flocs composed of dirt and dirt such as carcasses and excrement of rotifers float in the culture medium of the culture water tank 2 where the rotifers are cultured, fiber such as cotton is cultivated in the culture water tank 2. The floc removal mat 11 made of an elastic material and made of an elastic material is immersed, and the floc is adsorbed to the floc removal mat 11 to be removed. Then, the flock removal mat 11 that has been adsorbed by the flock in the culture water tank 2 and cleaned is washed by the flock removal mat washing machine 7. Further, a washing device 12 is attached to the culture water tank 2 and the rotifer nutrition enhanced water tank 4 so that the culture water tank 2 and the rotifer nutrition enhanced water tank 4 are washed after the cultivation of the rotifer. These operation processes, in particular, the rotifer culture process, the concentration process, and the culture water tank cleaning process are automatically controlled by the control panel 10 so as to be automatically executed in series, and operations such as input of control conditions are performed. This is done with the control panel 10. In this automatic culture / feeding system, not only rotifers but also other fish-feeding organisms such as floating diatoms can be automatically cultured and fed in the same manner.
[0015]
  As shown in FIG. 4, the culture water tank 2 for cultivating rotifers can be supplied with warm seawater through a seawater supply pipe 23, and with warm water through a clean water supply pipe 24, and washed with a washing water supply pipe 25. Washing water is supplied to the apparatus 12, and chlorella is fed through the chlorella feeding pipe 20 by the chlorella feeding pump 1a. Concentrated oxygen is supplied from the oxygen supply pipe 21 and compressed air is supplied from the compressed air supply pipe 22 so that oxygen deficiency does not occur even when the density of the rotifer to be cultured is increased. Furthermore, a temperature sensor 14 and a heater 13 are provided in the culture water tank 2 so that the temperature of the culture solution in the culture water tank 2 is kept constant at a temperature suitable for culture.
[0016]
  In addition, as shown in FIG. 5, the rotifer fortified water tank 4 for strengthening rotifer nutrition can be supplied with warm seawater through a seawater supply pipe 23 and warm water through a water supply pipe 24, and washed. Cleaning water is supplied to the cleaning device 12 through the water supply pipe 25, chlorella is fed through the chlorella feeding pipe 20, and nutrients are supplied through the nutrient enhancement pipe 28. Concentrated oxygen is supplied from the oxygen supply pipe 21 and compressed air is supplied from the compressed air supply pipe 22 to prevent oxygen deficiency even when the density of the rotifer cultured while enhancing nutrition is increased. Further, a temperature sensor 14 and a heat exchange pipe 26 in which hot water circulates are provided in the culture water tank 2 to keep the temperature of the culture solution in the culture water tank 2 at a temperature suitable for culture. It is configured as follows.
[0017]
  Next, the washing | cleaning apparatus 12 for wash | cleaning each water tanks, such as the culture water tank 2 and the rotifer nutrient enhancement water tank 4, is demonstrated. 6 and 7 show a cleaning device 12 attached to the culture water tank 2, for example. A washing water pipe 25 for supplying washing water is fixed above the culture water tank 2, and a rotating nozzle base 32 is rotatably supported at the lower end of the washing water pipe 25. A plurality of bottom surface cleaning nozzles 39 project substantially downward from the lower surface of the rotating nozzle base 32, and the cleaning water is ejected from the bottom surface cleaning nozzle 39 toward the bottom surface 2 b of the culture water tank 2. . Further, horizontal pipes 31 and 31 extend outward from the rotary nozzle base 32, and an end nozzle base 33 is fixed to the outer end of the horizontal pipe 31, from the end nozzle base 33. The end washing nozzle 34 protrudes outward and downward, and the washing water is ejected from the end washing nozzle 34 toward the side wall 2a of the culture water tank 2. The washing water pipe 25, the nozzle base 32, the horizontal pipes 31 and 31, the end nozzle base 33, and a brush receiving base 35 described later are configured to be integrally rotatable. Further, as shown in FIG. 8, the cleaning water ejected from the end cleaning nozzle 34 is ejected to one direction side of a circular rotation locus 30 drawn when the end nozzle base 33 rotates in a plan view. The end nozzle base 33 is configured to rotate by the reaction force of the cleaning water that is ejected.
[0018]
  Further, a brush receiving base 35 is extended from the rotary nozzle base 32 to both outer sides along the horizontal pipes 31 and 31, and hooks 38 and 38 are respectively fixed to both ends of the brush receiving base 35. Yes. An upper end portion of the brush shaft 36 is rotatably engaged with the hooks 38 and 38, and a cleaning brush 37 is pivotally supported on the lower end portion of the brush shaft 36. The cleaning brush 37 rotates integrally with the rotation of the cleaning water pipe 25 and is configured to be rotatable in the radial direction of the rotation locus 30 around the upper end portion of the brush shaft 36. In addition, the cleaning brush 37 is not in contact with the wall surface 2a of the culture water tank 2 in a non-rotating state. When the cleaning brush 37 starts rotating, the cleaning brush 37 is rotated radially outward by centrifugal force, and the wall surface 2a. It is configured to touch. With the cleaning device 12 configured in this manner, dirt adhering to the culture water tank 2 during the culture is washed.
[0019]
  Next, the washing | cleaning process which wash | cleans the culture tank 2 with the washing | cleaning apparatus 12 comprised as mentioned above is demonstrated. The washing process of the culture water tank 2 is configured to be automatically executed. When the automatic culture / feeding system enters the washing mode of the culture water tank 2, the washing water flows out of the washing water pipe 25 and the bottom washing nozzle 39. And it ejects from the edge part cleaning nozzle 34. FIG. The washing water from the bottom surface washing nozzle 39 is ejected toward the bottom surface 2b of the culture water tank 2, and the washing water from the end portion washing nozzle 34 is ejected toward the wall surface 2a of the culture water tank 2, respectively. The bottom surface 2b and the wall surface 2a are cleaned. The direction in which the cleaning water is ejected from the end cleaning nozzle 34 is inclined in the counter-rotating direction of the end cleaning nozzle 34, and thus the reaction of the cleaning water ejected from the end cleaning nozzle 34 causes the end cleaning nozzle 34. The bottom surface cleaning nozzle 39, the cleaning brush 37, and the like start to rotate integrally. Since the cleaning brush 37 is not in contact with the wall surface 2a of the culture water tank 2 before the rotation starts, the resistance from the wall surface 2a is not applied to the cleaning brush 37 when the rotation starts, and the rotation starts smoothly.
[0020]
  When the end cleaning nozzle 34, the cleaning brush 37, and the like start rotating, the cleaning brush 37 moves outward due to the centrifugal force generated by the rotation and contacts the wall surface 2a of the culture tank 2. The dirt adhering to the wall surface 2 a is softened by the jetted cleaning water, and the softened dirt is scraped off by the cleaning brush 37 to perform cleaning. In this case, the particularly dirty wall surface 2 a cannot be sufficiently cleaned only with the cleaning water ejected from the end cleaning nozzle 34, and the operator manually applies the scraping action by the cleaning brush 37. It is possible to achieve a cleaning effect equivalent to that obtained by cleaning with Further, the rotation speeds of the end cleaning nozzle 34 and the cleaning brush 37 can be adjusted by changing the inclination angle of the end cleaning nozzle 34, for example, the rotation speed is 20 to 30 rotations per minute. By adjusting, a sufficient cleaning effect can be obtained and the rotation can be stably performed. When the cleaning is completed, the ejection of cleaning water from the bottom surface cleaning nozzle 39 and the end cleaning nozzle 34 is stopped, and the end cleaning nozzle 34 and the cleaning brush 37 are stopped from rotating. It leaves | separates from the wall surface 2a of the culture water tank 2. FIG.
[0021]
  The cleaning process configured as described above is controlled so as to be automatically executed, and the labor of the operator can be greatly reduced. For example, if the operator manually cleans the culture tank 2, it takes about 1 hour per tank, but if it is automatically executed by the automatic culture / feeding system, it takes about 15 minutes. It is possible to perform the cleaning operation in the operation time. Further, since the cleaning device 12 rotates the end cleaning nozzle 34, the cleaning brush 37, and the like by utilizing the reaction force when the cleaning water is ejected, a rotational power source is unnecessary and a small amount of cleaning is performed. Washing with water becomes possible, so that the washing cost can be reduced and the washing device 12 can be configured in a simple structure. Further, since the cleaning brush 37 is not in contact with the wall surface 2a of the culture water tank 2 before rotation, the initial activation force is small, and the cleaning brush 37 is separated from the wall surface 2a even after the rotation is completed. 37 is properly dried. In addition, the washing | cleaning process of this culture tank 2 is the same also in the washing | cleaning process in the case of washing | cleaning the rotifer nutrient enhancement water tank 4, It is also possible to apply to washing | cleaning water tanks, such as the said water tank 5 for a rotifer feeding.
[0022]
  Next, automatic control of work in each water tank, such as the culture water tank 2 that performs the culture work, the rotifer nutrient-strengthened water tank 4 that performs the nutrient enhancement work, and the concentrated washing water tank 3 that performs the concentration / cleaning work, will be described. First, the structure for detecting the water level of the culture solution in the culture water tank 2 will be described. As shown in FIG. 9, in the culture water tank 2, the culture solution is stored and the rotifer is cultured. A pressure gauge attachment pipe 41 penetrates from the outside of the side wall 2a into the bottom surface 2b portion in the culture water tank 2, and a pressure gauge 42 is attached to the outer end of the pressure gauge attachment pipe 41. Thus, the water pressure of the culture solution in the bottom surface 2b portion of the culture water tank 2 is detected. The culture tank 2 is provided with a density measuring device that measures the density of the cultured feed organism. The control panel 10 for controlling the automatic culture / feeding system is provided with a calculation device, and by the calculation device, the volume is calculated from the water pressure detected by the pressure gauge 42, and the density measurement device, By multiplying by the density of the culture solution measured with the microscope, it is configured to calculate the number of cultured feed organisms stored in the culture tank 2.
[0023]
  In this case, the pressure gauge attachment pipe 41 to which the pressure gauge 42 is attached is disposed horizontally, and air accumulates in the pressure sensing portion of the pressure gauge 42 and water pressure cannot be detected normally. This prevents the culture fluid from remaining on the pressure gauge 42 mounting portion side and preventing sufficient washing. In consideration of the case where the culture solution is seawater, the pressure gauge 42 is formed of a member having corrosion resistance to seawater. Further, a pressure gauge 42 can be attached in the transfer pipe 43 connected to the lower end of the culture water tank 2, but the transfer pipe 43 communicates with the transfer pipe 43 of the other culture water tank 2 and the like. Therefore, if a flow of a culture solution or the like occurs in another transfer pipe 43, the detected water pressure may become unstable. In this example, the pressure gauge is placed on the bottom surface 2b of the culture water tank 2. 42 is arranged.
[0024]
  Further, when the density of a rotifer which is a currently cultured organism is input to the control panel 10, the density of the culture solution measured by a measuring device such as a microscope, and the amount of the culture solution water calculated as described above, In addition, the calculation device calculates the amount of rotifer in the culture solution. Then, based on the calculated amount of rotifer, the supply amount of chlorella serving as rotifer feed into the culture water tank 2 is determined, or the culture when transferring the rotifer in the culture water tank 2 to the concentrated washing water tank 3 These operations are automatically executed by determining the transfer amount of the liquid.
[0025]
  For example, when the rotifer is transferred to the concentrated washing water tank 3 after culturing, the water level is calculated from the water pressure detected by the pressure gauge 42. Then, when the density of the rotifer, the amount of rotifer transferred, and the transfer start time are input to the control panel 10, the amount of the culture solution to be transferred is calculated based on this input data, and the culture tank 2 after the transfer is calculated. The water level is calculated. Thereafter, the rotifer transfer pump 3a is operated to transfer the culture solution from the culture water tank 2 to the concentrated washing water tank 3 through the transfer pipe 43, and when the water level of the culture water tank 2 reaches the post-transfer water level calculated as described above. The rotifer transfer pump 3a stops and the transfer operation is completed. Further, when feeding the culture water tank 2 from the concentrated chlorella tank 1, the water level is calculated from the water pressure detected by the pressure gauge 42. When the density of the rotifer, the amount of rotifer transferred, and the transfer start time are input to the control panel 10, the total number of rotifers in the culture tank 2 is calculated based on this input data, and is necessary for this amount of rotifer. The amount of chlorella to be calculated is calculated, and the operating time of the chlorella feeding pump 1a is determined. Thereafter, the chlorella feeding pump 1a is operated to feed the chlorella from the chlorella feeding pipe 20 into the culture water tank 2, and when the operating time has elapsed as determined above, the chlorella feeding pump 1a is stopped and the feeding operation is completed. . A series of these transfer operations and feeding operations are automatically executed under the control of the control panel 10.
[0026]
  Thus, by detecting the water level of the culture solution in the culture water tank 2, it is configured to be able to calculate and detect the condition of rotifer culture and feeding conditions of chlorella to the culture water tank 2, Depending on the culture conditions, feeding conditions, etc., the supply valve 22a of the compressed air supply pipe 22 for supplying the compressed air into the culture water tank 2, the heater 13 for adjusting the liquid temperature of the culture solution, and the warming seawater to the culture water tank 2 Supply valve 23a of the seawater supply pipe 23 to be supplied, supply valve 24a of the water supply pipe 24 for supplying warm water to the culture water tank 2, and supply valve 25a of the cleaning water supply pipe 25 for supplying cleaning water to the cleaning device 12 And the drain valve 43a which drains the water etc. which were stored in the culture tank 2 is automatically controlled by the control panel 10 so that it may operate | move suitably. That is, the control conditions for the work in the culture water tank 2 are detected based on the detected water level of the culture solution, and the work is automatically controlled according to the detected control conditions. In addition, the automatic control of the culture process in the culture tank 2 can be similarly applied to each water tank such as the rotifer nutrition enhanced water tank 4 and the rotifer feeding water tank 5.
[0027]
  Here, in the conventional culturing process, the operator himself / herself visually confirms the water level of the culture tank to calculate the volume of the culture solution, and the amount of rotifer in the culture tank is calculated based on the measurement result of the culture solution density. Since the calculations were made, it took a long time for these calculations and calculations, and errors in the calculated data often occurred. Therefore, it has been difficult to appropriately determine the supply amount of chlorella into the culture water tank and the transfer amount of rotifer to the concentrated washing water tank. In addition, based on the culture conditions calculated and determined in this way, the operator himself has been performing operations such as adjusting the temperature of the culture solution, supplying water to the culture tank 2, and washing the culture tank 2. There was a risk of operating the device incorrectly.
[0028]
  However, since this automatic culture / feeding system is configured as described above, the amount of chlorella supplied into the culture tank and the amount of rotifer transferred to the concentrated washing water tank can be appropriately determined. In addition, it is possible to greatly reduce the work waiting time that occurs when calculating the amount of rotifer in the culture water tank and determining the supply amount of chlorella and the transfer amount of rotifer. In addition, operations such as adjusting the temperature of the culture solution, supplying water to the culture tank 2 and washing the culture tank 2 are automatically controlled by the control panel 10 based on the culture conditions, etc. Therefore, it can be accurately executed with little variation and no erroneous operation. For example, the waiting time and work time required when the conventional worker himself calculated and decided and operated peripheral devices were about 5 hours excluding counting work, In the case of automation as in this example, the waiting time and work time can be made almost zero.
[0029]
  Next, a configuration for detecting the water level of the culture solution in the concentrated washing water tank 3 and a concentration / washing operation process in the concentrated washing water tank 3 will be described. As shown in FIG. 10, a concentrated net 45 is provided inside the concentrated washing water tank 3 so that a rotifer that is a feed organism for fish farming does not pass through and a culture solution or filth can pass therethrough. When the rotifer cultured in the culture water tank 2 is supplied into the concentration net 45 through the rotifer supply pipe 47 together with the culture solution, it is subjected to microfiltration for washing the rotifer in the concentration net 45 at the same time. Warm seawater is supplied from the seawater supply pipe 23. When the rotifer and the heated seawater are supplied into the concentration net 45, the swing arm 46 attached to the upper end of the concentration net 45 starts to move up and down, and the concentration net 45 moves the support shaft 45a along with this. It is swung around the center. The culture solution and warmed seawater supplied into the concentration net 45 pass through the concentration net 45 and flow out to the outside from the overflow pipe 44 of the concentration washing water tank 3. On the other hand, since the rotifer does not pass through the concentration net 45, it stays in the concentration net 45 and is stored, and the density in the concentration net 45 increases and is concentrated. And the rotifer currently stored in the concentration net | network 45 is wash | cleaned in the process in which the warming seawater supplied in the concentration net | network 45 flows out outside. Moreover, the cleaning effect of the rotifer is improved by swinging the concentration net 45. Further, by supplying warm seawater into the concentration net 45 during the concentration / cleaning operation, oxygen dissolved in the seawater and air in the atmosphere will be supplied to the culture solution. Even if the rotifers in the concentration net 45 are concentrated and become high density, the culture solution does not fall short of oxygen.
[0030]
  In this way, the concentrated washing water tank 3 concentrates and cleans the rotifer. The rotifer in the concentration net 45 clogs the eyes of the concentration net 45 and the culture solution or warm seawater passes through the concentration net 45. It may not pass. In this case, the culture solution and the heated seawater that are continuously supplied overflow from the upper end of the concentration net 45 together with the rotifer in the concentration net 45, so that the concentration net 45 is clogged.didIn some cases, it is necessary to temporarily stop the supply of the culture solution and the heated seawater. Therefore, a water level gauge 48 is arranged above the concentration net 45 to detect the water level in the concentration net 45, and when the water level rises, it is determined that the concentration net 45 is clogged and the culture is performed. The supply of liquid and heated seawater is stopped. Then, when the water level is lowered, the supply of rotifer from the rotifer supply pipe 47 and the supply of warm seawater from the seawater supply pipe 23 are resumed, and the concentration / cleaning operation is continued. In this case, since the water level gauge 48 is configured as an ultrasonic water level gauge that detects the water level by emitting ultrasonic waves to the water surface and measuring the distance to the water surface, it is not in contact with the water surface. Since it is installed above the concentration net 45, it is possible to detect an accurate water level by adjusting the sensitivity even when bubbles are generated on the water surface. Thus, when the water level is detected using a float-type water level gauge or a rod-shaped water level gauge, bubbles are attached to the water level gauge and the water level is erroneously detected, or when the concentrated washing water tank 3 is washed. It can be prevented from getting in the way.
[0031]
  When the concentration / cleaning operation in the concentrated cleaning water tank 3 is completed, heated seawater is supplied from the seawater supply pipe 23 into the concentration net 45, and the high density rotifer in the concentration net 45 is diluted to increase fluidity. While the rotifer transfer pump 3a is operated, the rotifer in the concentration net 45 is sucked by the feed harvesting tube 49 and transferred to another aquarium such as the rotifer nutrition enhanced aquarium 4 or the culture aquarium 2 to perform the next process. It is configured as follows.
[0032]
  As described above, when the concentration operation is performed in the concentrated washing water tank 3, by supplying the finely filtered seawater into the concentrated washing water tank 3, the rotifer can be sufficiently washed simultaneously with the concentration work. Contamination and lack of nutrient enhancement in the rotifer nutrition enhanced water tank 4 can be solved. In addition, the continuous supply of seawater ensures that fresh oxygen is always supplied to the culture broth that is being concentrated, and it is possible to prevent the concentrated and densified rotifer from deficient in oxygen. It becomes. Furthermore, since the concentrated and washed rotifer is transferred to the next process while supplying seawater while diluting the concentration, the oxygen deficiency of the rotifer during the transfer is resolved, and the physical damage that the rotifer is subjected to during the transfer is also eliminated. Can be reduced. As a result, the number of rotifers that die during the transfer is greatly reduced, so that the harvesting efficiency can be improved.
[0033]
  Next, the rotifer transfer pump 3a will be described. The rotifer transfer pump 3a is constituted by a positive displacement pump such as a hose pump, for example, and enables the transfer direction in both forward and reverse directions. As shown in FIG. 11, the rotifer transfer pump 3a is interposed between the culture water tank 2 and the concentrated washing water tank 3, and the rotifer transfer pump 3a and the culture water tank 2 are connected by a transfer pipe 43 to transfer the rotifer. A feed harvesting tube 49 connected to the pump 3 a is inserted into the concentration net 45 of the concentrated washing water tank 3. A transfer pipe 50 is branched from a middle portion of the transfer pipe 43 connecting the rotifer transfer pump 3a and the culture water tank 2, and extends to another water tank, for example, the rotifer nutrition enhanced water tank 4. In addition, an electric valve 43b for opening and closing the transfer pipe 43 is interposed between a connection part of the transfer pipe 43 with the culture water tank 2 and a branch part to the transfer pipe 50, and the transfer pipe 50 is provided. An electric valve 50a for opening and closing the transfer pipe 50 is interposed between the branch portion from the transfer pipe 43 and the tip of the rotifer nutrient-enriched water tank 4 side.
[0034]
  When the rotifer is transferred from the culture water tank 2 to the concentrated washing water tank 3, the electric valve 50a of the transfer pipe 50 is closed and the electric valve 43b of the transfer pipe 43 is opened to concentrate and wash the rotifer transfer pump 3a. It is driven to discharge in the direction of the water tank 3. After all the rotifers in the culture water tank 2 have been transferred, warmed water is supplied from the upper water supply pipe 24 of the culture water tank 2 to the culture water tank 2, and the wall surface 2 a and the bottom surface 2 b of the culture water tank 2 and the transfer pipe 43. The rotifer adhering to the inner wall and the rotifer transfer pump 3a is discharged.
[0035]
  When the rotifer is transferred from the concentrated washing water tank 3 to the rotifer nutrient-enriched water tank 4, the electric valve 43b of the transfer pipe 43 is closed, the electric valve 50a of the transfer pipe 50 is opened, and the rotifer transfer pump 3a is set as described above. It is driven so as to discharge in the direction opposite to that of the above, that is, in the direction of the rotifer nutrition enhanced water tank 4. After all the rotifers in the concentrated washing water tank 3 are transferred through the feed harvesting pipe 49 and the transfer pipe 50, heated water is supplied from the upper water supply pipe 24 of the concentrated washing water tank 3 to the concentrated washing water tank 3. The rotifer attached to the concentrated washing water tank 3, the feed harvesting pipe 49, the transfer pipe 50, and the rotifer transfer pump 3a is washed away, and then the rotifer transfer pump 3a is stopped. Thereby, it is possible to transfer the rotifer in the culture water tank 2 to the rotifer nutrition enhanced water tank 4 without waste. The transfer operation and the switching operation of the driving direction of the rotifer transfer pump 3a are all automatically controlled by the control panel 10.
[0036]
  Thus, the transfer process of the rotifer from the culture water tank 2 to the concentrated washing water tank 3, and the transfer of the rotifer from the concentrated washing water tank 3 to the rotifer nutrition enhanced water tank 4, which is another water tank constituting the automatic culture / feeding system. In the process, the driving direction of the rotifer transfer pump 3a is reversed to perform the transfer. As a result, the rotifer transfer pump 3a used in both transfer processes and the feed harvesting pipe 49, which is a part of the piping, can be used in common, reducing the capital investment in the automatic culture / feeding system, It becomes possible to reduce the installation space, to effectively use it, and to improve the maintainability of the equipment. Moreover, since the rotifer transfer pump 3a is comprised by the positive displacement pump, it does not give a physical and biological damage to a rotifer in the middle of a transfer, and can transfer a rotifer efficiently. In addition, the water tank of the transfer destination from the concentrated washing water tank 3 may be not only the rotifer nutrient enhanced water tank 4 but also the rotifer feeding water tank 5 and the culture water tank 2.
[0037]
  As described above, in the present automatic culture / feeding system, various work processes from the culture process in the culture tank 2 to the feeding process of feeding the cultured rotifer to the fish culture tank 6, in particular, the culture process in the culture tank 2, the culture tank Since the washing process for washing 2 and the concentration / washing process in the concentrated washing water tank 3 are controlled so as to be automatically executed in series, the work time required for the manual work performed by the operator is greatly reduced. Can do. For example, the conventional work time of 14 hours can be reduced to 2.5 hours instead of 14 hours. Further, by automating the manual work, it is possible to reduce and equalize the dispersion of each work, and it is possible to stably culture and feed the rotifer.
[0038]
  However, if a trouble occurs in the system during the automatic control of the culture and feeding system for fish-feeding organisms such as rotifers, it will affect the survival of the cultured organisms if the trouble continues for a long time. It is necessary to handle the trouble and restore the system to normal automatic control. Therefore, in this automatic culture / feeding system, multiple countermeasures for handling the troubles that occurred and restoring to the normal automatic control operation state are incorporated, and when trouble occurs, the normal automatic control state is restored. Until then, a plurality of countermeasures are sequentially implemented to deal with the trouble quickly and reliably. The response means is means for automatically recovering the automatic culture / feeding system while maintaining the automatic control operation state of the trouble occurrence process, and automatically controlling operation after the automatic culture / feeding system is recovered by switching the trouble occurrence process to manual operation. To restart the automatic control operation after switching the trouble occurrence process to manual operation and recovering by a forced recovery command from the outside, and to cancel the automatic control operation of the entire line where the trouble occurrence process exists, It is comprised by the means to culture continuously by a line.
[0039]
  With reference to FIG. 12, the flow in the case of sequentially implementing these countermeasures will be described. First, when a hardware problem occurs in the system (S11), a notification is given to the control panel 10 and an alarm is issued (S12), and the location where the problem has occurred and instructions on how to deal with it are displayed (S13). ). After that, the system handles the trouble itself and recovers it while maintaining the automatic control state of the trouble occurrence process (S14). When the trouble is resolved, the system returns to normal automatic control operation. However, if the trouble is not resolved, the process in which the trouble has occurred is switched from the automatic control operation state to the manual operation state (S21). Handles the trouble and recovers itself (S22). When the trouble is resolved, the system returns to normal automatic control operation.If the trouble is not resolved, the system is switched by communication means such as a telephone line while keeping the trouble occurrence process switched to manual operation. A request is made to connect to the outside and perform maintenance from the outside (S31). Thereafter, maintenance is performed by remote operation from the outside, a forced recovery command is issued to deal with the trouble, and after the recovery, automatic execution is resumed (S32). When the trouble is resolved, the system returns to normal automatic control operation. However, if the trouble is not resolved, the automatic control operation of the entire line where the trouble occurrence process exists is stopped (S41). The culture is continued manually using the equipment (S42). Then, after the culture is completed (S43), the system is restored (S44). When the trouble is resolved, the system returns to normal automatic control operation. However, if the trouble is not resolved, the line where the trouble occurrence process exists is stopped and production is performed on another line (S51). Next, the system is restored (S44). Thereafter, the system recovery is continued while production is being performed on another line until the system recovers and returns to normal automatic control operation.
[0040]
  In this way, by preparing a plurality of response means for handling the trouble that occurred and restoring to the normal automatic control operation state, by sequentially implementing these response means until the normal automatic control operation state is restored Since the probability of recovery increases as the implementation of the countermeasures proceeds, it is possible to quickly resolve the trouble and recover to the normal operation state. Therefore, even when a hardware problem occurs in the system, it is possible to minimize the damage to cultured organisms such as rotifers. In addition, since the display of the trouble location and the instruction of the coping method is displayed on the control panel 10 by a touch panel type, the subsequent operation is an interactive operation, and the operation is simple and easy to understand.
[0041]
【The invention's effect】
  Since the present invention is configured as described above, the following effects can be obtained.
  As claimed in claim 1,at leastIt is a feed organism for fish farmingRotiferCulturing process, cultured fish feed organismThe rotifer is darkConcentrating process to shrink, washing process to wash each aquarium constituting each process, and feed organism for fish farming to fish tankRotiferIn an automatic culture / feeding system for fish-feeding organisms configured to automatically perform a series of feeding processes for feedingA control system for determining a transfer amount of a culture solution when transferring a rotifer in the culture water tank to a concentrated washing water tank in a concentration process, which is a subsequent process, based on calculation data of the amount of rotifer in the culture water tank in the culture process A water level detecting means for detecting the water pressure in the bottom portion with a pressure gauge in the culture water tank; A density measuring device for measuring the density of the culture solution measured by a measuring device such as a microscope is arranged, and the water level of the culture tank detected by the water level detecting means and the density of the feed organism for fish farming formed in the density measuring device And detecting a control condition that is the number of solid rotifers that are fish feed organisms stored in the culture tank, and calculating the amount of the culture solution to be transferred according to the detected control condition , Calculate the water level of the culture tank after the transfer, start the transfer by operating the pump, stop the operation of the pump and end the transfer work when the water level of the culture tank reaches the calculated water level after the transfer Control the system automaticallyTherefore, at least a culturing step for culturing the fish feed organism, a concentration step for concentrating the cultured fish feed organism, a washing step for washing each tank constituting each step, and feeding the fish feed organism to the fish tank By automatically executing the feeding process in a series, the work time required for manual work performed by the worker could be greatly reduced. For example, the conventional work time of 14 hours can be reduced to 2.5 hours instead of 14 hours.
  In addition, by automating the manual work, it was possible to reduce the variation of each work and make it uniform, and it was possible to stably culture and feed rotifers.
[0043]
  Furthermore, a water level detection means and a density measuring device for measuring the density of the feed organism for fish farming are arranged in each tank constituting each step of the automatic culture / feeding system, and the water level of each tank detected by the water level detection means And the density of the fish feed organisms formed in the density measuring device, the control condition that is the number of solids of the fish feed organisms stored in each tank is detected, and the system is detected according to the detected control conditions. Automatically control the amount of feed for culture organisms into the culture tank, the amount of culture organisms transferred to the concentrated washing tank, etc. It is possible to greatly reduce the waiting time of work that occurs when calculating and determining the supply amount of feed for cultured organisms and the transfer amount of cultured organisms.
  Further, various operations in the water tank such as water temperature adjustment, water supply to the water tank, and washing of the water tank do not require manual operation, and can be performed accurately without erroneous operation.
  For example, the waiting time and work time required when a conventional worker himself calculated and decided and operated peripheral devices were about 5 hours excluding counting work, In the case of automatic control, the waiting time and work time can be made almost zero.
[0042]
  The cleaning apparatus for cleaning each water tank constituting each process of the automatic culture / feeding system in the cleaning process according to claim 2 includes at least a cleaning nozzle that self-rotates by a water pressure of the sprayed cleaning water, and the cleaning A cleaning brush attached to the rotation shaft of the nozzle and rotating together with the cleaning nozzle is provided, and the cleaning brush does not contact the wall surface of each water tank when stopped, but contacts the wall surface of each water tank when rotation starts. And since it comprised so that the contact state with the wall surface of each water tank could be maintained during rotation, the washing process of the water tank could be automated and the labor of an operator could be reduced significantly. For example, when an operator manually cleans the culture tank, a place that requires about 1 hour of work time per tank should be cleaned in about 15 minutes if automated. Is possible.
  In addition, since the cleaning device rotates the cleaning nozzle and brush by utilizing the reaction force when the cleaning water is jetted, it does not require a rotational power source and can be cleaned with a small amount of cleaning water. The cleaning cost can be reduced, and the cleaning device can be configured in a simple structure.
  In addition, since the cleaning brush is not in contact with the wall of the culture water tank before rotation, the initial starting force is small, and the cleaning brush is separated from the wall even after the rotation is completed. Will be done.
[0044]
  In the automatic culture / feeding system for a fish-feeding organism according to claim 3, reversing means for transferring the fish-feeding organism from the culture water tank constituting the culture process to the concentration water tank constituting the concentration process is reversible. It is constituted by a pump, and the reversible pump is used to transfer the feed organism for fish farming from the culture water tank to the concentrated water tank, and from the concentrated water tank to the other water tanks constituting each process of the automatic culture / feeding system. Because it is possible to transfer in both directions of transfer, it is possible to control the switching of the transfer direction and to use a part of the reversible pump and piping in common when transferring fish feed organisms in multiple directions. It becomes possible.
  As a result, it has become possible to reduce the capital investment, reduce and effectively use the installation space, and improve the maintainability of the equipment.
[0045]
  As described in claim 4, in the concentration step, the cultured fish feed organism and the water for biological cleaning are continuously supplied into a concentration net configured to allow the passage of fish and feed organisms but not waste and water. At the same time, when the fish feed organism cultured in the concentration net and the water for cleaning the organism are supplied, the swinging arm attached to the upper end of the concentration net starts to move up and down. By oscillating around the support shaft, the fish feed organism is concentrated, the fish feed organism is washed, and the oxygen is supplied to the fish feed organism at the same time. It can wash | clean enough and can eliminate the contamination in the nutrient enhancement water tank which is the next process, and lack of nutrient enhancement.
  In addition, the continuous supply of seawater ensures that fresh oxygen is always supplied to the culture broth that is being concentrated, and it is possible to prevent the concentrated and densified rotifer from deficient in oxygen. It becomes.
  In addition, the oxygen deficiency of the rotifer during the transfer is resolved, and the physical damage that the rotifer undergoes during the transfer can be reduced, and the number of rotifers that die during the transfer is greatly reduced, thus improving the harvesting efficiency. Can be achieved.
[0046]
  As described in claim 5, the automatic culture / feeding system for fish-feeding organisms incorporates a plurality of response means for handling troubles occurring in the automatic culture / feeding system and restoring them to a normal automatic control state. In the event that a problem occurs, the configuration is such that a plurality of countermeasures are sequentially performed until the normal automatic control state is restored, so that the probability of recovery increases as the implementation of the countermeasures progresses sequentially. The trouble can be solved and the normal operation can be restored.
  Therefore, even when a hardware problem occurs in the system, it is possible to minimize the damage to cultured organisms such as rotifers.
  In addition, the operation at the time of trouble occurrence becomes easy to understand, and the trouble can be dealt with by a simple operation.
[Brief description of the drawings]
FIG. 1 is a diagram showing a system flow of an automatic culture / feeding system for fish-feeding organisms of the present invention.
FIG. 2 is an overall plan view showing an automatic culture / feeding system for fish-feeding organisms.
FIG. 3 is a view showing a process flow of an automatic culture / feeding system for fish-feeding organisms.
FIG. 4 is a side view showing a culture water tank.
FIG. 5 is a side view showing a rotifer fortification tank.
FIG. 6 is a side view showing a cleaning device.
FIG. 7 is an enlarged view showing an end cleaning nozzle of the cleaning apparatus.
FIG. 8 is a plan view showing the ejection direction from the edge cleaning nozzle for cleaning water.
FIG. 9 is a side view showing a culture water tank and various pipes for performing a culture operation.
FIG. 10 is a side view showing a concentrated cleaning tank.
FIG. 11 is a view showing a state of transfer of a rotifer by a rotifer transfer pump.
FIG. 12 is a diagram showing a system recovery flow by means for handling when a trouble occurs.
[Explanation of symbols]
  1 Concentrated chlorella tank
  1a Chlorella feeding pump
  2 Culture tank
  2a Wall surface
  2b Bottom
  3 Concentrated washing water tank
  3a Rotifer transfer pump (reversible pump)
  4 Rotifer fortified water tank
  5 Feeding tank
  6 Fish tank
  10 Control panel
  11 Flock removal mat
  12 Cleaning equipment
  23 Seawater supply pipe
  25 Water supply pipe for cleaning
  34 End cleaning nozzle
  37 Cleaning brush
  42 Pressure gauge (water level detection means)
  45 Concentrated net
  48 Water level gauge (Water level detection means)
  49 Feed Harvest Tube

Claims (5)

Culturing step of culturing rotifers at least for fish culture bait organism concentration step enrichment of rotifers are cultured for fish culture bait organism cleaning step of cleaning the respective water tank constituting the respective steps, and, for fish to fish aquarium In an automatic culture / feeding system for fish-feeding organisms configured to automatically execute a series of feeding steps for feeding rotifers as feed organisms , based on the calculation data of the amount of rotifers in the culture tank of the culturing step, A control system for determining a transfer amount of a culture solution when transferring a rotifer in a culture tank to a concentration washing water tank in a concentrating process, which is a subsequent process, and detecting a water pressure at a bottom portion by a pressure gauge in the culture tank A water level detecting means and a density measuring device for measuring the density of the culture solution measured by a measuring device such as a microscope are arranged, and the water level and density of the culture water tank detected by the water level detecting means According to the density of the fish feed organisms formed in the measuring device, a control condition that is the number of rotifers that are fish feed organisms stored in the culture tank is detected, and according to the detected control conditions , Calculating the amount of the culture solution to be transferred, calculating the level of the culture tank after the transfer, starting the transfer by operating the pump, and when the water level of the culture tank reaches the calculated post-transfer level A system for automatically culturing and feeding fish feed organisms, characterized in that the system is automatically controlled to stop the pump operation and finish the transfer operation . The automatic culture / feeding system for fish feed organisms according to claim 1, wherein a cleaning device is provided for cleaning each water tank constituting each step of the automatic culture / feeding system in the cleaning step , and the cleaning device is ejected at least. A cleaning nozzle that rotates by the water pressure of the cleaning water, and a cleaning brush that is attached to the rotating shaft of the cleaning nozzle and rotates together with the cleaning nozzle. A system for automatically cultivating and feeding fish food for fish farming, which is configured to contact the wall surface of each aquarium at the start of rotation without being in contact with the water and to maintain the contact state with the wall surface of each tank during rotation .   2. The automatic culture / feeding system for fish-feeding organisms according to claim 1, wherein a transfer means for transferring the fish-feeding organisms from the culture water tank constituting the culture process to the concentration water tank constituting the concentration process is a reversible pump. The reversible pump is used to transfer fish feed organisms from the culture tank to the concentrated water tank, and the fish feed organisms are transferred from the concentrated water tank to other tanks constituting each process of the automatic culture / feeding system. A system for automatically culturing and feeding fish feed organisms, characterized in that it can be transferred in both directions.   The automated culture / feeding system for fish feed organisms according to claim 1, wherein, in the concentration step, the fish feed organisms are cultured in a concentration net configured such that the fish feed organisms do not pass through and filth and water can pass through. And the biological cleaning water is continuously supplied, and when the cultured fish feed organism and the biological cleaning water are supplied into the concentration net, the swing arm attached to the upper end of the concentration net moves up and down. The concentrating net is swung around the support shaft in association with this, thereby concentrating the fish feed organism, cleaning the fish feed organism, and supplying oxygen to the fish feed organism. An automatic culture and feeding system for fish feed organisms, characterized by being performed simultaneously.   The automatic culture / feeding system for fish-feeding organisms according to claim 1, wherein a plurality of corresponding means for handling troubles occurring in the automatic culture / feeding system and restoring to a normal automatic control state are incorporated. A system for automatically cultivating and feeding fish-fed food organisms, characterized in that, when it occurs, a plurality of response means are sequentially implemented until the normal automatic control state is restored.

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