JP2005287388A - Transporting container for fish and shellfish - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small-sized apparatus capable of being used as a portable container for taking caught fish home by leaving the fish alive as they are or a water tank for living fish used in transporting the living fish, etc., and capable of being used for long-time transportation. <P>SOLUTION: In the portable container for transporting fish and shellfish or the small-sized water tank for the living fish, fresh water or seawater is circulated through the container or the tank, subjected to physical filtration with a filter, and further subjected to biological filtration with a microorganism culturing chamber. Further, the container or the water tank is formed into a pleated structure capable of being folded, so that volume thereof is freely changed according to an amount of contents thereof. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a container for transporting seafood, and more particularly to a portable container for carrying fish caught home or a fish tank for transporting live fish.

  When seafood is transported from a catching land or landing site for a long period of time, high technology and large-scale equipment are required to transport it in an alive state. In a small container, metabolites of fish and shellfish are decomposed into water and ammonia is generated, and the concentration gradually increases. In order for fish to survive for a long time, it is necessary to remove ammonia that is highly toxic to seafood and to preserve the water quality in the container.

  Conventionally, as means for removing ammonia, there are physical filtration that is adsorbed and removed by zeolite or activated carbon, and biological filtration that is decomposed by bacteria or the like. Physical filtration requires cleaning and replacement when the adsorbent is used repeatedly. Biological filtration is a large-sized facility, and when the water in the water tank is drained, the function of the bacteria in the filter tank at the time of rising is weakened.

  Ammonia is converted to nitric acid via nitrite by aerobic bacteria in the aquarium. However, if the above action by aerobic bacteria is insufficient, ammonia and nitrous acid may increase, causing fish and shellfish to die. For this reason, it is necessary to pass the aquarium water through a filter medium on which aerobic bacteria are implanted, and to quickly change the generated ammonia to nitric acid which is relatively less toxic to fish and shellfish.

  Conventionally, as a simple method of transporting seafood, the seafood is sealed in a plastic bag or the like, oxygen is injected into the plastic bag, and then transported by an automobile or the like. However, when oxygen is injected into a plastic bag for transportation, once the plastic bag is opened, oxygen almost leaks and must be reinjected. In addition, many of the conventional water purification devices for fish and shellfish have a large container and are inconvenient to carry, and oxygen cannot be sufficiently supplied to the filter medium. Therefore, the survival rate of fish is not high and the yield of raw fish is not good.

  Then, the water purification apparatus which solved the above technical problems is developed (refer patent document 1, patent document 2, patent document 3), but these equip a submersible pump in a water tank and pump up water. As a result, the inside of the tank becomes narrow and unsuitable as a simple transporter, and the water temperature rises, causing the seafood to weaken. Therefore, it has been desired to develop a device that can pump water without using a motor pump and can withstand long-time high-density transfer using a small container.

Japanese Patent Laid-Open No. 11-127724 JP-A-11-262344 JP 2002-335810 PR

  The present invention has been made to solve the above-described problems, and provides a small portable container for transporting fish and shellfish while utilizing seafood for a long time, or a live fish tank for transporting raw fish and the like.

  In the present invention, a biological water purification apparatus is provided in a seafood container containing fresh water or seawater, and fresh water or seawater is circulated in the water purification apparatus and the container, respectively. The water purification apparatus is filled with a filter medium on which aerobic microorganisms are deposited, and oxygen and air (hereinafter referred to as air) are supplied to form an aerobic microorganism culture chamber. An air reservoir for storing air is created under the ceiling of the aerobic microorganism culture chamber, and dissolved oxygen is supplied to circulating water to culture aerobic microorganisms.

  The portable transport container for seafood according to the present invention sends an air generator 2 for sending out air, an air stone 10 for generating fine bubbles, and water in the container to the lower microorganism culture chamber 3. A water inlet with a filter 24 and a drain port 7 for sending purified water from the microorganism culture chamber 3 upward are provided. The microorganism culture chamber 3 is partitioned by partition plates 11A to 11D, and each partition plate is provided with a small hole 8 and cuts 12A to 12D.

  The air generated from the air generator 2 is sent to the microorganism culture chamber 3 through the air tube 9B. The air sent to the microorganism culture chamber 3 is introduced into each chamber to form an air reservoir above the notch 12 of the partition plate, and aerobic microorganisms that have been deposited on the filter medium with water in which oxygen is sufficiently dissolved by the air reservoir. Promote breeding. By nitrifying bacteria, one of the aerobic microorganisms, ammonia can be reduced to nitric acid through nitrite, and organic waste products generated from seafood metabolites can be biologically removed.

  On the other hand, the air sent out from the air generator 2 passes through another air tube 9A and is released as fine bubbles from the air stone 10. Water is lifted up by the rising force of the bubbles. Therefore, the water purified in the microorganism culture chamber 3 rises and reaches the drain port 7 and returns to the container 1 from the outlet. In this way, the water in the container circulates and the dust is physically filtered by the filter 24, enters the microorganism culture chamber 3 from the water intake 4 and passes through the small holes or cuts 12 to the next chamber and sent to the next chamber. (Arrow 50) It is biofiltered and can form an environment in which fish can live easily.

  Since it is bulky to carry the container as it is to the fishing ground or fishing pond site during transportation, the drain tube and the water intake are made detachable, and the container has a foldable bellows structure. Therefore, when storing or bringing, the drain tube and the water intake are removed from the upper plate of the microorganism culture chamber, and the container 1 is folded to make the whole small. When in use, stretch the bellows of the container and attach the drain and water intake. Change the size of the container according to the amount of fish caught, adjust the amount of water, put a waterproof lid, and take it home. This device can be used not only as a portable container that can withstand long-time transfer of telescopic and compact seafood, but also can be reared as a small aquarium.

  Since the portable container of the present invention has a bellows structure, it can be folded and carried, the capacity can be changed according to the amount of fish caught, and it is not bulky during storage. Organic waste products generated from metabolites such as fallen scales and excrement of fish and shellfish, or residual feed can be removed biologically, and the fish and shellfish can be transported and bred for a long time without weakening.

  No power source is placed in the container, and air is injected from the air compressor outside the container, so no need for a motor pump is required, and damage to fish and shellfish is caused by an increase in water temperature due to the heat generated by the motor pump. There is no fear. High-density long-time transportation with a small portable container can be realized, and it can be used as a small breeding aquarium as it is.

  Below, the fishery container according to the present invention will be described mainly with respect to a portable container for raw fish based on the drawings. A biological water purification apparatus was provided in a foldable bellows-structured container, and fresh water or seawater was circulated in the container and the water purification apparatus, respectively. The water purification apparatus is filled with a filter medium on which aerobic microorganisms are implanted, and dissolved oxygen is supplied to the aerobic microorganisms by an air reservoir in the culture chamber.

  FIG. 1 shows an example of a simple portable small container for the raw fish of the present invention. An air generator 2 for sending air to the outside of the container 1 is attached, and the drainage attached to the air stone 10 for generating fine bubbles and the drain port connection part 31 of the upper plate 29 of the microorganism culture chamber are detachably attached. A water inlet 4 having a small hole detachably attached to the upper plate 29 of the microorganism culture chamber and a cylindrical filter 24 fitted to the water inlet are provided.

  First, air generated from the air generator 2 is sent to the microorganism culture chamber 3 through the air tube 9B. The air sent to the microorganism culture chamber 3 is introduced into each chamber and forms an air reservoir above the notch 12 of the partition plate 11. In the microorganism culture chamber 3, the growth of aerobic microorganisms that have been deposited on the filter medium is promoted by water in which oxygen is sufficiently dissolved in an air reservoir. Ammonia bacteria, one of the aerobic microorganisms, reduce ammonia to nitrate through nitrite. In this way, organic waste products generated from seafood metabolites and the like can be biologically removed.

  As shown in FIG. 3, the inside of the microorganism culture chamber 3 is partitioned by partition plates 11A, 11B, 11C, and 11D. Each partition plate is provided with a small hole 8 and cuts 12A, 12B, 12C, and 12D. Has been. Air from the air generator 2 is introduced into the microorganism culture chambers 3A, 3B, 3C, 3D, and 3E through the air tube 9B through the air tube 9B, and the air is above the cuts 12A, 12B, 12C, and 12 As it accumulates, the water is sent to the next chamber through a small hole or cut. Multiple divider plates prevent water from staying, prevent unnecessary movement of filter media (not shown) on which microorganisms are deposited, and stabilize the water surface. It is not limited and can be increased or decreased as necessary. If the filter medium is a filter medium on which microorganisms have already been deposited, a rising state having a sufficient purification treatment capacity can be formed earlier when the container is installed. The filter medium is inserted from the filter medium insertion port 23 provided on the upper plate 29 of the microorganism culture chamber.

  On the other hand, the air sent out from the air generator 2 is released as fine bubbles from the air stone 10 through another air tube 9A, and water is lifted up by the rising force of the bubbles. Therefore, the water purified in the microorganism culture chamber 3 ascends the drain tube and reaches the drain port 7, flows out from the outlet into the container 1, and is refluxed. In this way, the water in the container circulates, and first the dust is physically filtered by the filter 24, enters the microorganism culture chamber 3 through the suction port, passes through the small hole 8 or the cut 12 and is sent to the next chamber to the next chamber. (Arrow 51) Biofiltered. Moreover, a better habitat environment can be created for fish by forcibly circulating the water in the container with a motor pump.

  Since it is bulky to carry the container as it is to the fishing ground or fishing pond site during transportation, the drain tube and the water intake are made detachable, and the container has a foldable bellows structure. Therefore, the drain tube and the water intake are removed from the upper plate of the microorganism culture chamber when stored or brought, and the container 1 is folded to make the whole small. When in use, stretch the bellows of the container and attach the drain and water intake. Change the size of the container according to the amount of fish caught, etc., adjust the amount of water so that air does not enter as much as possible, and bring it back with a waterproof lid. The lid 5 is provided with a vent hole 6, but the vent hole may be formed of a breathable waterproof material that hardly leaks water. In this way, the container that can be stretched and is convenient to carry can withstand even when the seafood is transported for a long time and can be reared as a water tank as it is.

  When oxygen is directly injected into the filtration tank where bacteria live, the filtration capacity is dramatically improved, so it is possible to rear with slightly more seafood than the conventional standard for the tank capacity, and give a little excess of food. But the water will not rot. Although it was difficult to breed in a small aquarium with the conventional apparatus, the apparatus itself according to the present invention is compact and has a high processing capacity, so that it can be applied as a portable small aquarium.

  The small portable transport container of FIG. 1 in the present invention is folded and brought to the sea fishing ground, the container bellows is stretched locally, and the container is assembled by fitting the drain tube and the water intake to the upper plate of the microorganism culture chamber. It was. Seawater was poured into the container and air was injected from an air compressor outside the container. Eventually, small fish, crustaceans and shellfish were captured, placed in a container, covered and taken home.

  Continue to use the container you brought back as a small aquarium, replenish seawater a little, switch from a battery-powered air pump to an AC air pump, put air in, and keep the collected fish, crustaceans and shellfish as they are for 3 months Rearing. During this time, seawater and filters have not been changed or cleaned, but it has been confirmed that seafood is growing vigorously. In saltwater fish breeding, the smaller the tank, the more difficult it is, and it must be said that it is a good result considering that the amount of fish and shellfish raised is several times the standard amount so far.

  Although the seafood transport container of the present invention has been described as a transportable portable container, it can be used as it is as a small aquarium for breeding. Therefore, the present invention can also be applied to a live fish tank for transportation and breeding for small shops and restaurants that require downsizing.

  In addition, the present invention is not limited to the above-described embodiments, examples, and water purification devices in industrial applicability, and various modifications can be made within the scope of the contents described in the claims. Variations are possible and the present invention includes all of these.

It is a perspective view which shows the whole structure of the Example to which the water purification apparatus concerning this invention is applied. It is an enlarged view of the microorganism culture room in the said Example. An example of the bellows structure of the container of the Example concerning this invention is shown. It is a side view which shows the conventional water purification apparatus installed in the conventional ornamental water tank.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seafood container 2 Air generator 3, 3A, 3B, 3C, 3D, 3E Microorganism culture room 4 Water intake 5 Lid 6 Vent hole 7 Drain tube 8 Small hole 9A, 9B Air tube 10 Air stone 11A, 11B, 11C, 11D Partition plate 12, 12A, 12B, 12C, 12D Cut 21 Hole 22 Bottom sand 23 Filter medium insertion port 24 Cylindrical filter 26 Water intake inlet cut 27 Water intake inlet connection 28 Filter medium insertion port lid 29 Upper plate 32 Air insertion port 31 Drain tube connection 51 Indoor water flow 60 Container side movement 70 Bellows structure 90 Fish

Claims (4)

  A microorganism culture chamber containing a filter medium is installed in the lower part of the container, and a filter for physical filtration and a drain port for circulating biological filtration purified water are attached to the upper plate of the microorganism culture chamber, and an air is provided below the drain port. A transport container for seafood, wherein a stone is faced and oxygen or air from an air generator is introduced into the microorganism culture chamber and the air stone.   The transport container for seafood according to claim 1, wherein the container has a foldable bellows structure, and the drain tube and the water inlet can be freely detached.   The transport container for fish and shellfish according to any one of claims 1 to 2, wherein a partition plate is provided in the microorganism culture chamber, and the small holes and the cuts of the partition plate are alternately arranged.   The container for transporting fish and shellfish according to any one of claims 1 to 3, wherein the container is provided with an airtight sealing lid.

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