JP3793846B2 - Self-extinguishing fish reef apparatus and method for manufacturing the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an artificial reef apparatus that collects various fishes by sinking a structure to the seabed, and in particular, a self-disappearance type reef apparatus that takes into consideration preservation of the seafloor environment and nature protection in the long term and a method for manufacturing the same. About.
[0002]
[Prior art]
By installing fish reefs on the seabed or riverbed, it is possible to gather fish around the area and increase the catch, thereby contributing to the promotion of fishery and fish processing industries. Conventionally, fish reefs are made by embedding wood in concrete vertically by combining wood, stone, or concrete, or by building wood in a well girder and fixing it with anchor bolts, and storing the stone inside the well built in the girder, etc. It is built. FIG. 11 shows an example of a conventional fish reef. In the figure, for example, the bases of a plurality of log-like timbers 100 are embedded and fixed in a concrete base 102 so as to be spaced apart from each other and perpendicular to the base. It is constructed by planting. This is a fish reef that sinks to the required seabed, etc., and algae settles on the surface of the wood 100, and plankton and microorganisms inhabit therewith, and various fish gather for this purpose. ing. On the other hand, as an effort to artificially create fishing grounds, large concrete blocks, metals, various types of stone strings, and various plastics are dropped into the sea etc. to form algae vegetation base material, and the seaweed basin of the population is formed to create fish. Efforts to collect are made.
[0003]
[Problems to be solved by the invention]
The fish reef constructed by incorporating wood on the basis of the conventional concrete described above is durable because the wood part is eaten up by aquatic organisms such as beaked beetle and bark beetle over time, and it can not function as a fish reef in a relatively short period of time There was a problem of short. In addition, these aquatic organisms damage not only the wood body, but also the joints between the wood and the concrete foundation, which damages the bolt connection of the foundation and causes the wood to float, for example, on the surface of seawater. This was a problem in that it was a hindrance to navigation of vehicles, causing hull damage and personal injury. Furthermore, since the wood part, which is the main part of the fish collection effect as a fish reef, is likely to be detached early, even if an attempt is made to construct the fish reef on the seabed again, as shown in FIG. In addition to hindering the establishment of new fish reefs, concrete foundations remain on the seabed for a long time, changing the natural environment of the seabed or sea, and thus changing the tidal currents in the sea area for the natural conservation of fishing grounds and tidal flats. It was a problem that would have an impact. Furthermore, the fish reef including a large concrete base is heavy, and requires a large crane for the installation work, and there is a problem in that it involves a danger when the auxiliary worker works.
[0004]
Further, recently, in JP-A-8-196165, a synthetic resin layer to which a graphite meteorite having a far-infrared radiation function is added is formed on the surface of wood, and a bottomed frame assembled with the synthetic resin layer-formed wood is used. Fish reefs that contain stones have been proposed, but even if the wood part decomposes over time, the synthetic resin layer on the surface remains permanently in a state where it does not decompose, and is scattered and causes seabed contamination At the same time, there is a concern about the adverse effects on the aquatic plants by the action of environmental hormones.
[0005]
Also, with algae bases made of large concrete blocks and plastics, the surface is relatively smooth or smooth, so the roots of the algae can not catch the base material, and they have washed away in the water, There was a risk of destroying useful seaweeds remaining in the water without decomposing. Furthermore, it was difficult to re-install, and there was a possibility of causing an adverse effect on the environment.
[0006]
The present invention has been made in view of the above-described conventional problems, and one object of the present invention is that it can be easily installed when a fish reef is reconstructed over time, is lightweight, has good installation workability, and is low in cost. Another object of the present invention is to provide a self-disappearing fish reef apparatus and a method for manufacturing the same, which do not cause adverse effects on the natural environment in the water such as the seabed and riverbed without generating residual waste on the seabed. In addition, another object of the present invention is to provide a method for natural growth of algae that can reliably grow useful seaweeds in natural waters that are always desired to prosper, and that does not adversely affect the environment, and a substrate for the growth. Is to provide.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention uses, as a main material, wood hair 20 obtained by cutting a wood material into sliced pieces, and kneads this with cement and water, and press-molds them. Then, the upper structure 12 is formed by the obtained wood wool board 16 itself or a structure based on the wood wool board, and the wood hair foundation 14 is formed. It is comprised from the self-disappearance type fish reef apparatus 10 comprised by fixing to a standing shape.
[0008]
Moreover, the upper structure 12 and the wood wool base 14 are good also as being adjusted to specific gravity of the grade which can sink in water.
[0009]
The upper structure 12 is a mixture of aggregate and cement mixed with wood wool 20, kneaded, processed into a plate shape from the wood wool board 16 obtained by press molding, and a plurality of processed wood hair lengths. It is good also as a structure which consists of the columnar body 28 formed by superimposing the board | plate 26, and this was made to stand on the wood wool base 14. FIG.
[0010]
Further, at least the wood wool base 14 may be set so that the specific gravity increases from the upper part to the lower part.
[0011]
Further, the present invention is a wood wool board adjusted to a specific gravity so that it can be submerged by press molding a fluid mixture containing wood wool, cement and water obtained by cutting a woody material into slices. 16 and a wooden base 14 larger than the wooden board, and the wooden board 16 or a structure (12) formed from the wooden board is erected and fixed on the wooden base 14 to form an arbitrary rigid structure. (10) is formed, and this is comprised from the manufacturing method of the self-disappearance type fish reef apparatus used as a fish reef for water bottom installation.
[0012]
Moreover, in the manufacturing method of the self-disappearance type fish reef apparatus, at least the wood wool base (14) may be pressure-molded so that the specific gravity increases from the upper part to the lower part.
[0013]
In addition, the present invention is based on wood hair obtained by cutting a wood material into slice pieces, blending this with cement and water, kneading, and press-molding the resulting fluid mixture to form wood. A compressed solid body with hair is formed, spores of desired algae are sprinkled on this compressed solid body, germinated in a water tank installed on the ground side, and this is put into natural water where it is desired to grow and algae is grown. It consists of natural algae growing methods.
[0014]
Moreover, it is good also as adjusting a specific gravity by adjusting the compounding quantity of cement, and adjusting the decomposition | disassembly rate of the compression solid body after throwing into natural water.
[0015]
In addition, the present invention is based on wood hair obtained by cutting a wood material into slice pieces, blending this with cement and water, kneading, and press-molding the resulting fluid mixture to form wood. A compressed solid body with hair is formed, spores of desired algae are sprinkled on this compressed solid body, germinated in a water tank installed on the ground side, and this is put into natural water where it is desired to grow and algae is grown. It consists of natural algae growth base.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 1-8 show one embodiment of a self-disappearing fish reef apparatus 10 of the present invention. This self-disappearing fish reef apparatus 10 basically forms an upper structure with a wooden board, and forms a wooden foundation as a support base, and fixes them to form a rigid structure as a fish reef. In FIG. 1, the processing steps of the wood wool board 16 that is the basis of the upper structure 12 and the wood wool base 14 are described.
[0017]
In the figure, a raw wood 18 is cut to a required length, and this is cut into slices by a cutting device, and a large number of wood hairs 20 made of wood fibers are cut out. As the log, for example, cedar, hinoki, pine or any other wood may be used. Moreover, it is preferable to use thinned wood or forest land residual material. The wood wool is formed to have a width of about 0.5 mm to 50 mm, a thickness of 0.4 mm to 0.6 mm, and a length of about 20 mm to 400 mm, for example, and an appropriate amount of cement and water are mixed and kneaded to adjust the moisture. A muddy fluid mixture 21 is produced while performing. On the other hand, the lower plate frame 22 for molding is supplied to, for example, a conveyor line (not shown), and cement powder is sprayed on the entire surface of the lower plate frame 22 in the middle of the line. The body agitated by the mixer is thrown evenly over the entire surface of the lower plate frame 22 from the hopper. The upper plate frame 24 is placed from above, and a plurality of layers are stacked and pressed from the upper surface side by a press device to pressurize, and after tight curing, drying is applied to form the wood wool board 16. This wooden board 16 is pressed and compacted by a pressing device.
[0018]
The fluid mixture 21 in which cement and water are added to the wood wool may be mixed with, for example, wood ends, charcoal, sand, and the like as necessary.
[0019]
The amount of cement is related to the decomposition rate in water corresponding to the binding force when solidified to include wood wool and made into a wood board, and therefore by adjusting this, the reef equipment in the water can be adjusted by adjusting this. It is only necessary to design the amount of cement by carrying out reef installation and restructuring plans such as the disappearance rate, that is, whether or not the fish reefs should disappear in a period of about five years or longer.
[0020]
In addition, the cement bonded body including wood wool (for example, wood wool board 16) is basically a porous structure as shown in FIG. 2, and since the wood hair itself has buoyancy, it is assembled as a structure. It is also lightweight. Therefore, workability is good when installing in the sea, and it is possible to work even with a small crane, but it is necessary to sink to the bottom of the water, so it can sink in the sea or in water such as fresh water. It is necessary to adjust to the specific gravity of the degree. In the embodiment, for example, the wood wool plate 16 after compression press molding is set to have a specific gravity of 0.8. In this case, too, a number of gaps are formed on the inside and outside by the wood wool 20 and the like. It has been confirmed that the area is filled with seawater and sinks to the seabed. The specific gravity may be larger than this, but from the viewpoint of workability, the specific gravity is 0.8 or more, preferably in the range of about 0.8 to 1.2. The specific gravity of the wood wool plate can be adjusted by adjusting the press pressure to the fluid mixture, adjusting the amount of cement to be mixed, or adjusting the amount of charcoal when mixed.
[0021]
This press-compressed and dried wood board 16 is cut into an appropriate size and processed as necessary. As shown in FIG. 6 and FIG. The upper structure 12 is formed. In addition, the upper and lower plate frames 22 and 24 are relatively large when the fluid mixture 21 is pressed and compressed, so that the upper structure 12 can be supported in the lower portion, for example, at least a wooden board 16. A larger wood wool base is formed. The wood wool board 16 has extremely good cutting and workability. For example, in the case where it is installed in advance by connecting with a reef part at the time of installation in water, a hole or a shape is desired if necessary. It can be easily formed in the shape of.
[0022]
As for the wood wool base, for example, the compressed residue of the fluid generated during the press compression molding of the wood wool board 16, the end material produced during the cutting process of the wood wool board, etc. are crushed and mixed with cement, sand, etc. Then, this is poured into a mold of a base-like, for example, thick rectangular flat plate, and press-compressed while being vibrated. This wooden base 14 supports the lower side of the upper structure 12, and is therefore set so that the specific gravity increases from the upper part to the lower part. The That is, it can be obtained by molding so that the density of the material is increased in the direction of thickness from the front surface to the back surface side. For example, in the state of the fluid mixture 21, the water content is set to about 40%, for example, and the fluid mixture 21 is put on the lower plate frame from the hopper and cemented while being conveyed by a conveyor line or the like in the next process. It is formed so that the material, wood wool and other materials settle on the back surface side, and the density gradient increases from the upper surface side to the lower surface side. Further, in this case, the amount of cement and water added and the conveyance time until the next pressing step are set in consideration of the balance with the setting time of the cement.
[0023]
In addition, at least the wooden base is configured so that the density of the mixture components increases from the top to the bottom. Yes. In this case, the fish reef function can be reliably maintained without causing decomposition at least before the upper structure. Therefore, from this point, it is more preferable that the specific gravity and the density of the mixture components such as wood wool and charcoal increase from the surface (upper surface) side to the back surface (lower surface) side of the base.
[0024]
In this embodiment, the press-molded wood board 16 is processed into a long plate shape as shown in FIG. 4, for example, to form a plurality of long single plates 26 as shown in FIG. A laminated body-like column 28 is formed by means such as tightening or bolt fixing so as to overlap in the direction, and an anchor member 30 protruding in four directions in a cross shape made of wood or metal is fixed to this lower end side. . Then, as shown in FIG. 5, together with the compressed residue discharged in other processes and the pulverized material such as mill ends generated during the cutting process of the wood board, the fluid confusion 21 is put into the base mold 32, The assembled column body 28 is installed in the base mold frame 32 with the anchor member 30 attached to the lower side, and in this state, it is compacted by vibration and solidified. After solidification, the upper structure 12 is formed by removing the mold from the base mold 32 to fix the plurality of pillars 28 projecting upward with a required gap on the wood wool base 14 shown in FIGS. A fish reef apparatus 10 is formed as a rigid-shaped fish reef structure, which is set on the sea floor or the water bottom. Thereby, in particular, the upper structure 12 part functions as a fish reef body, and algae and microorganisms are collected, and further, various fish seeking these are collected in the vicinity.
[0025]
In the upper structure, the wooden board 16 simply formed by compression-molding the fluid mixture 21 may be erected on the wooden base alone, or as shown in FIGS. 9 and 10. Metal pillars 34 may be fixed upright at the four corners of the wood wool base 14, and the wood wool board 16 may be processed into a long plate shape and assembled into a fence shape. In short, the structure of the upper structure 12 may be any structure as long as it is solidified with cement based on wood wool and has self-extinguishing properties. It ’s fine. Furthermore, the wood base 14 and the upper structure 12 may not be fixed as in the embodiment, but may be fixed by bolts, fitting, caulking, tightening with a rope, or other various fixing means. .
[0026]
When such a self-disappearing fish reef apparatus 10 is installed on the seabed, for example, the apparatus can be easily transported and moved, and can be easily installed on a desired seabed using a small crane or the like. If the total load is light, the risk to workers during work is reduced, and work accidents can be prevented. After the installation of the device 10, for example, the woody portion of the wood is decomposed in about 5 years, and the upper structure 12 and the wood base 14 disappear naturally. In addition, about the growth base material as a wooden board formed in the same process mentioned later, it is a ratio of 5% per 2 months by volume ratio, and 20% in 8 months. Depletion It has been confirmed experimentally. The materials of the fish reef apparatus of the present invention are all naturally present. Therefore, even if they are scattered in the sea, they do not affect the environment of basic marine aquatic organisms such as the influence of environmental hormones. Moreover, since an upper structure may be arbitrary structures, it can be comprised at low cost using the timber which cannot be marketed as a thinning material, the end material discharged | emitted at the time of lumbering, and a product. In particular, when a reef device is disassembled and a new reef is installed in a period of about five years, it may be installed in the same manner as when a new reef is installed using the fish reef device according to the embodiment. The installation is not hindered by the presence of the fish reef, and smooth re-installation work can be performed. The self-disappearing fish reef apparatus of the present invention can be applied not only to the seabed but also to freshwater environments such as rivers, lakes, and ponds.
[0027]
Next, an embodiment of the method for natural growth of algae and its growth base material of the present invention will be described. This natural algae growth method is based on wood hair obtained by cutting a wood material into slices, blending it with cement and water, kneading, and press-molding the resulting fluid mixture. The point which forms the compressed solid body containing wood wool is the same as that of said self-disappearance type fish reef apparatus. The shape of the compressed solid body containing wood wool may be any three-dimensional shape such as a three-dimensional quadrangular shape, a cylindrical shape, a columnar shape, a three-dimensional polygonal shape, and an irregular shape. The structure may be formed by cutting into an appropriate dimension after compression molding. Preferably, it is better to perforate the holes so that they can be easily fixed when installed underwater. The fluid mixture obtained by adding cement and water to wood wool may be mixed, for example, with wood ends, charcoal, sand, and the like as necessary.
[0028]
In this natural algae growth method, this compressed solid body is used as a vegetation base for algae, and the desired algae spores are sprayed on the compressed solid body and germinated in a water tank installed on the ground side to propagate. It is put into natural water to grow algae. The algae are preferably algae, kurome, akamoku and other seafood foods and algae that can easily propagate microorganisms preferred by fish. For example, it may be used for food by people such as Tosakanori and Hijiki and directly generate economic value.
[0029]
After spores germinate in an aquarium, the time when they should be dropped or placed in natural water to grow depends on the type of algae. If it is. Moreover, it will be performed by selecting a seasonal time of installation in the water. Since the compressed solid body containing wood wool can be cut easily, the size and shape as a vegetation base material can be arbitrarily designed depending on the type of algae and the installation location.
[0030]
Thus, for example, seaweed spores are implanted and germinated on the surface of the compressed solid body, and then placed in still water to grow algae. When the algae grows and releases spores, the base material itself is naturally decomposed by the composition design of the raw materials. Since the compressed solid body is made by compacting wood fiber with cement paste, it has voids on the surface and inside, so the roots of the grown algae can catch the compressed solid body that is the base material. Therefore, it will not be washed away immediately after being dropped into natural water. With the passage of time, the roots of algae are settled from the compressed solid body to the surrounding rocks and the like, and the roots grow naturally on the rocks in the sea. When renewing the base material, this compressed solid body has a self-decomposing function and basically self-decomposes and disappears over time according to the blending ratio of cement and wood wool. As for securing, there is no need to remove what was installed before, and it can be installed in the same place. Unlike the concrete, metal, stone, etc., the growing base material according to the method of the present invention is lightweight and easy to transport, transfer from the water tank, drop in the water, and other operations and has good workability. Moreover, unlike the case of resins such as FRP, there is no influence of environmental hormones and the environmental load is small. Furthermore, not only thinned wood and remaining forest land, but also general timber can be used, contributing to the promotion of forestry.
[0031]
In addition, the compression solid body in this embodiment is the structure similar to the wooden board 16 of the said embodiment, and detailed description is abbreviate | omitted. For example, it is better to set the specific gravity to be 0.8 or more so that it can sink in the sea or underwater. In particular, compressed solid bodies with wood wool are excellent in machinability and processability, and are not found in conventional base materials in that they can be freely processed and set to the optimal solid body size and shape according to each algae. Has great advantages.
[0032]
Further, by adjusting the blending amount of the cement, the specific gravity can be adjusted, and the decomposition rate of the compressed solid body after being put into natural water can be adjusted. The specific gravity can be adjusted by adjusting the press pressure of the fluid mixture, adjusting the amount of cement, adjusting the amount of charcoal to reduce weight. As a result, it is possible to make a long-term plan such as the breeding type of the vegetation substrate and the renewal time, and to set the artificial seaweed formation in the water area to an optimum state.
[0033]
[Example 1]
(1) A mature akamoku (a kind of seaweed that forms a seaweed field called a garamo field) was collected and seeded in the following steps.
(1) Fill a 500 liter circular panlite aquarium with filtered seawater.
(2) Place a substrate (wood wool board, charcoal-treated wood wool board) side by side on the bottom of the water tank.
(3) Put the mother algae in the aquarium and leave it for a week with weak running water.
The water temperature was set to 23 ° C., and liquid fertilizer was applied at a rate of once every two weeks.
In addition, a wood wool board uses a cedar wood hair slice piece by the same manufacturing process as the wood wool board used as the foundation of the fish reef apparatus of the previous embodiment, and is 20 centimeters wide, 15 centimeters long, and thickness. A mixture of pulverized coal in a kneading process of cement and water was used.
(2) After one week, only the mother algae were removed, and indoor culture was performed under weak running water and weak aeration.
(3) Two weeks later, red sprouting buds adhering to the substrate were confirmed. The adhesion amount was 4.9 individuals / square centimeter for the wood wool board, and 1.6 individuals / square centimeter for the charcoal-treated wood wool board.
(4) Further, after 4 months of (3), the wood leaf board grew to 0.39 centimeters and the charcoal-treated wood wool board grew to 0.24 centimeters in average leaf length.
(5) Further, after about 3 months of (4), the wood leaf board is 1.46 centimeters in average leaf length (3 individuals were confirmed on the board), and 1.80 centimeters in the charcoal treated wood board ( More than 10 individuals were confirmed on the plate).
(6) Two days after (5), the substrate carrying the grown algae seedlings was offshore and submerged in a natural gravel water with a depth of about 6 m.
(7) It was confirmed that the juveniles were healthy on each substrate by underwater photography.
[Example 2]
In Example 1, the base material introduced into the sea was observed every two months, and it was confirmed that the substrate was worn out at a rate of 5% by volume during that period. About 8% of the volume was reduced 8 months after the injection. Although it is difficult to measure the rate of depletion in detail, it is estimated that the decomposition rate is accelerated and the volume is reduced at an accelerated rate. Although the specific gravity was adjusted to 0.8 in this example, the specific gravity is related to the porosity of the wood wool board, and the larger the specific gravity, the smaller the depletion rate over time and the smaller the specific gravity. A greater depletion rate is obtained.
[0034]
As described above, the self-disappearing fish reef apparatus according to the present invention, the manufacturing method thereof, the natural algae growing method and the growing base material thereof have been described, but the present invention is not limited to the above-described embodiment, and claims Modifications within the scope not departing from the essence of the invention described in the scope of the present invention are included in the present invention.
[0035]
【The invention's effect】
As described above, according to the self-disappearance type fish reef apparatus of the present invention, the main material is wood hair obtained by cutting a wood material into slice pieces, and this is mixed with cement and water, and this is kneaded. The upper structure is formed from the obtained wooden wool board itself or a structure based on the wooden wool board, and a wooden foundation is formed to stand the upper structure against the wooden foundation. Because it is a fixed structure, i) the device is lightweight, ii) it is easy to transport and manage, and iii) it is easy to cut and process the base and superstructure to any shape and size Iv) The reef installation work is easy, v) The work can be done in a short time, and vi) The whole reef is decomposed and lost in units of several years, for example, and there is no hindrance to the installation work again. Can be performed smoothly, and vii) It can prevent ship damage and personal injury, viii) can effectively use thinned wood and wood scraps, viv) can increase the catch without adversely affecting the environment of the sea and water, and xi) As a result, it is possible to achieve fishery promotion.
[0036]
In addition, the upper structure and the wood wool base are configured to be adjusted to a specific gravity so as to be submerged in water, for example, without connecting an anchor for fixing support to the seabed etc. Therefore, it is not necessary to install anchors and wires for fixing the seabed separately from the device, improving the installation workability of the device and keeping the operation cost low.
[0037]
In addition, the upper structure is made by mixing aggregate and cement with wood wool, kneading, processing the wood wool board obtained by press molding into a long board, and processing multiple wood wool long boards It is possible to manufacture at a low cost with a simple manufacturing process because it is a structure in which the column body is formed by superimposing and is erected on a wooden base.
[0038]
In addition, at least the wooden base is configured to increase in specific gravity from the upper part to the lower part, so a wooden base with a stable bearing capacity can be configured, and the density of the components should be increased from the lower part. Thus, the reef function can be reliably maintained without causing decomposition at least before the upper structure.
[0039]
Further, according to the method for manufacturing a self-disappearing fish reef apparatus of the present invention, a fluid mixture containing wood wool, cement and water obtained by cutting a wooden material into slice pieces is press-molded and submerged in water. A wooden board that is adjusted to the specific gravity to obtain and a wooden base larger than the wooden board is formed, and a wooden board or a structure formed from the wooden board is fixed upright on the wooden base. The structure is formed as a fish reef for water bottom installation, so it is lightweight, easy to transport and manage, and easy to install the fish reef in a short time. There are no obstacles to the installation work, and the installation work can be carried out smoothly, and it is possible to prevent ship damage and personal injury due to floating wood loss, and to effectively use thinned wood and wood scraps. It is possible.
[0040]
In addition, since at least the wooden base is pressure-molded so that the specific gravity increases from the upper part to the lower part, it is possible to configure a wooden base with a stable supporting force.
[0041]
Further, in the method for naturally growing algae of the present invention, a wood mixture obtained by cutting a wood material into slice pieces is used as a main material, and this is mixed with cement and water and kneaded, and the resulting fluid mixture Press to form a compressed solid body containing wood wool, sprinkle the desired algal spores on this compressed solid body, let it germinate in a water tank installed on the ground side, and put it in the natural water you want to propagate As a result, the algae is cultivated, so that the algae can be reliably settled on natural rocks in natural waters to ensure a stable harvest of algae. It is possible to artificially grow certain useful seaweeds. In addition, the self-decomposing function reduces the environmental burden, and when the algae substrate is renewed, it is simple and short by simply installing and installing a compressed solid body as a vegetation substrate in which new shoots are entrapped. Update installation can be done in time.
[0042]
Also, by adjusting the blending amount of the cement, the specific gravity is adjusted, and the decomposition rate of the compressed solid body after being put into natural water is adjusted, so that the breeding type of the vegetation base material, the renewal time, etc. It is possible to set up an artificial seaweed bed formation in the water area in an optimal state.
[0043]
In addition, according to the algae natural growth base material of the present invention, the main material is a wood hair obtained by cutting a wood material into slice pieces, and this is obtained by mixing and kneading cement and water. Pressing the fluid mixture to form a compressed solid body with wood wool, sprinkling the desired algae spores on the compressed solid body, allowing them to germinate in a water tank installed on the ground, and propagate them in the natural world Since it is configured to grow algae by injecting it into water, it can ensure that algae are steadily settled in natural rocks in natural waters, ensuring a stable harvest of algae, as well as food for seafood and microbial propagation. It is possible to artificially grow useful specific seaweeds that are substrates. In addition, the self-decomposing function reduces the environmental burden, and when the algae substrate is renewed, it is simple and short by simply installing and installing a compressed solid body as a vegetation substrate in which new shoots are entrapped. Update installation can be done in time.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram illustrating a manufacturing process of a wood board according to an embodiment of the present invention.
FIG. 2 is a perspective explanatory view of a wooden board.
FIG. 3 is a perspective explanatory view of a column body of the embodiment.
FIG. 4 is a perspective explanatory view of a long single plate.
FIG. 5 is an explanatory diagram for explaining a method of fixing a wooden base and an upper structure.
FIG. 6 is a partially cutaway front view of the self-disappearing fish reef apparatus according to the embodiment.
FIG. 7 is a perspective explanatory view thereof.
FIG. 8 is an explanatory diagram of the planar configuration.
FIG. 9 is an operation explanation and configuration explanatory view showing another example of the upper structure.
FIG. 10 is an explanatory perspective view of the assembled state.
FIG. 11 is a perspective explanatory view of a conventional artificial fish reef.
FIG. 12 is a perspective explanatory view of the concrete base portion.
[Explanation of symbols]
10 Self-extinguishing fish reef equipment
12 Superstructure
14 Kimono foundation
16 Wood board
20 Wood wool
21 Fluid confusion

Claims (6)

The wood wool obtained by cutting the wood material into slices shaped as a main material, the fluidized mixture obtained by blending cement and water to the press molded to the obtained wood wool foundation thereto, the wood wool and The wood wool upper structure obtained by press-molding a fluid mixture containing cement and water is fixed upright to form a fish reef, and the wood wool base and the wood hair upper structure are By adjusting the blending amount of the cement, the specific gravity is adjusted, the decomposition speed of the molded body after being poured into natural water is adjusted, and the wood base is set so that the specific gravity increases from the upper part to the lower part. to, self-disappearing reef device which is characterized in that a self-disappearing reef. On the wood base obtained by press-molding a fluid mixture containing cement and water as a main material, obtained by cutting the wood material into slice pieces, the wood hair, A fish reef is constructed by fixing a woody upper structure obtained by press molding a fluid mixture containing cement and water to stand upright, and the woody base and the woody upper structure are: By adjusting the blending amount of the cement, the specific gravity is adjusted, the decomposition rate of the molded body after being put into natural water is adjusted, and the density of the mixture components increases from the upper part to the lower part of the wood wool base. A self-extinguishing type fish reef apparatus characterized in that the fish reef function is maintained without causing decomposition prior to at least the upper structure. Superstructure is kneaded by blending the aggregate and cement and water to wood wool, which is processed press molded wood wool plate obtained in long plate, processed more trees bristle length The self-disappearance type fish reef apparatus according to claim 1 or 2 , wherein the self-disappearance type fish reef apparatus is composed of pillars formed by overlapping plates , or the wooden long plate is fixed in a fence shape . The structure of the upper structure is a structure having a self-extinguishing property obtained by pressing and molding a fluid mixture containing wood wool, cement and water, and the upper structure functions as a fish reef body, algae, 3. The self-disappearing fish reef apparatus according to claim 1, wherein microorganisms are collected and fish are collected in the vicinity. The wood wool foundation the fluidized mixture obtained by blending the excelsior cement and water obtained is adjusted to a specific gravity of a degree that can sink in water was press-molded by cutting the wood material into slices like, the wood wool water bottom and the fluidized mixture obtained by blending cement and water by press molding, the wood wool upper structure consisting Ri by wood wool plate is adjusted to the specific gravity of the degree capable of sinking into the water to stand fixed rigid shaped A manufacturing method of a self-disappearance type fish reef apparatus , comprising a fish reef for installation , wherein the specific gravity is set so that the specific gravity increases from the upper part to the lower part by adjusting the specific gravity . The above-mentioned wood wool is adjusted to a specific gravity so that it can be submerged by press-molding a fluid mixture containing wood wool, cement and water obtained by cutting woody material into slices. A fluidized mixture of water, cement, and water is press-molded, and a woody superstructure consisting of wood wool boards adjusted to a specific gravity that can sink into water is erected and fixed to install a rigid water bottom A self-extinguishing type characterized in that, by adjusting the specific gravity, the specific gravity of the wooden base and the density of the fluid mixture are formed so as to increase from the upper side to the lower side of the wooden base. Manufacturing method of fish reef apparatus

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