WO2008120805A1

WO2008120805A1 - Device for aquatic organism attachment and growth, process for manufacturing the same, and method of laying the device

Info

Publication number: WO2008120805A1
Application number: PCT/JP2008/056614
Authority: WO
Inventors: Kumi Oyamada; Tatsuhito Takahashi; Itaru Iwata; Jyunro Ito
Original assignee: Jfe Steel Corporation
Priority date: 2007-03-30
Filing date: 2008-03-27
Publication date: 2008-10-09
Also published as: JP4949304B2; JP2008271960A

Abstract

A device for aquatic organism attachment and growth that has an excellent strength and inhibits dropping of its fixation leg part from the mount hole on the base disk side, and that can be manufactured at low cost. The device consists of a fired body obtained by subjecting a raw material mixture composed mainly of steel making slag and a metallic-Al-containing material, optionally blended with metallic iron and/or iron-oxide-containing powder, clay, etc., to molding and firing. Iron contents are melted and solidified by high-temperature firing realized by a thermite reaction between the metallic Al and the iron oxide, and low-melting-point compounds are formed depending on the raw material components, thereby attaining exhibition of strength leading to excellent strength. Further, pores are formed at the production of the fired body, so that the surface is provided with an appropriate roughness. This surface roughness inhibits dropping of the fixation leg part from the mount hole on the base disk side.

Description

TECHNICAL FIELD Field of the invention

TECHNICAL FIELD The present invention relates to an aquatic organism deposition device for causing coral and seaweeds to grow in water, a manufacturing method thereof, and an installation method thereof. Background art

In recent years, the decline and disappearance of coral reefs and seaweed beds, which are thought to be caused by rising seawater temperature and environmental destruction in coastal waters, has become a major problem. Attempts have been made.

Among them, a method for growing coral seaweed using a specially shaped epiphytic appliance is disclosed in Japanese Patent No. 3 5 3 0 8 3 8 as disclosed in JP 2 0 0 4 — 1 2 1 1 9 5. Proposed in the Gazette. FIG. 1A and FIG. 1B show the basic shape of the dressing device used in the method of Japanese Patent No. 3 5 3 0 8 3 8 and Japanese Patent Laid-Open No. 2 0 0 4 — 1 2 1 1 9 5. FIG. 1A is a side view, and FIG. 1B is a plan view. This setting device A includes a plate-like portion X and fixing leg portions y (spacer portion y and insertion portion y ₂ ) protruding from the lower surface of the plate-like portion. A hole z for inserting a fixing leg y (insertion portion y ₂ ) of another dressing device A is formed on the upper surface side of the. The growing device A is about several centimeters in diameter, and is usually made of unglazed pottery.

Fig. 4 A and Fig. 4 3 show a method of growing corals using this setting device A. First, in the setting process shown in Fig. 4A, a plurality of setting devices A are used. Insert the fixing leg y (insertion part y ₂ ) of the other setting device A into the hole z on the upper surface side of each plate-like part X, and place it between the plate-like parts X of the upper and lower setting devices A. Coral larvae settled-Place in a suitable place for coral larvae settlement in a multi-layered state so that a gap D (gap due to spacer part yi) that can grow is formed. The coral larvae that grow on the basement in the sea are particularly likely to grow near the edge of the bottom surface of the basement, and the coral that has grown on the bottom surface of the basement grows gradually toward the side of the basement. Therefore, as shown in Fig. 4A, the coral is placed on the lower surface of the plate-like portion X of each epiphytic device A against the group of epiphytic devices placed in a suitable area for coral larvae in a stacked state as shown in Fig. 4A. Larva s. Will be born. And the coral larva s that has grown on the lower surface of the plate-like part X in this way. Since it grows in the gap D (space) between the upper and lower plate parts X, it is protected appropriately from predators.

Coral larva s. The device A is collected from the suitable larval settlement site, and if necessary, the coral larvae are grown on the suitable coral growth site. Etc.). In this transplantation, as shown in FIG. 4B, the fixing leg y (insertion portion y ₂ ) of each setting device A is inserted into the mounting hole p formed on the surface of the base B and bonded with an adhesive or the like. Then, the setting tool A is fixed to the base B so that a gap C in which coral can grow is formed between the plate-like portion X and the base plate B. As a result, the coral s gradually grows while being protected from predators, and gradually grows on the side surface / upper surface of the plate-like portion X and the base B. As described above, Japanese Patent No. 3 5 3 0 8 3 8 is an epiphytic device A disclosed in Japanese Patent Application Laid-Open No. 2 0 0 4-1 2 1 1 9 5, and is characterized by larvae of aquatic organisms. It aims to grow while protecting from predators by using the shape of the. However, the conventional dressing devices as described above are made of earthenware and have the following drawbacks.

(i) The strength of the fixing leg (the part that is inserted into the mounting hole on the base side) and the base part of the fixing leg are weak, and on the seabed where the settling equipment is installed, Easy to break.

(i i) Even if the fixing legs are inserted into the mounting holes on the base side and fixed with an adhesive, the surface is smooth and the adhesiveness is weak, so it easily falls off.

For this reason, it grows well before or even when organisms such as corals settle. There are not a few cases in which the dressing device and its body part fall off the base before it is done. Another problem is that the material cost is high due to the burning of the material cost, because the conventional settling equipment is made of earthenware.

In addition, for porcelain appliances other than the shapes shown in Fig. 1A and Fig. 1B (for example, plate-like appliances), although not as much as the appliances in Fig. 1A and Fig. 1B, they collide with rocks caused by waves. May cause damage or problems with adhesion to the substrate. Accordingly, an object of the present invention is to provide a device for aquatic organism settlement that has excellent strength, is difficult to drop off from a bonded base, and can be manufactured at a low cost. -Another object of the present invention is an apparatus for taking a shape as shown in Japanese Patent No. 3 5 3 0 8 3 8 and Japanese Patent Application Laid-Open No. 2 0 4-1 2 1 1 9 5. It is an object of the present invention to provide a device for aquatic organisms that has excellent strength and that makes it difficult for the fixing legs to fall out of the mounting holes on the base, and that can be manufactured at low cost.

Another object of the present invention is to provide a method capable of appropriately and efficiently producing such an aquatic organism settlement device.

Another object of the present invention is to provide a method capable of stably installing such a device for aquatic organism settlement in water. DISCLOSURE OF THE INVENTION In order to solve the above-mentioned problems, the present inventors have studied the raw materials and production conditions of an epiphytic appliance, and as a result, mainly made of steelmaking slag and metal A1-containing material. According to this, a raw material mixture containing metallic iron and / or iron oxide-containing powder, clay, etc. is formed and fired to produce a device for epiphysis with excellent performance that can solve the above problems at a low cost. I found out that I can do it.

The present invention has been made based on such findings, and the gist thereof is as follows. It is a cage.

[I] An aquatic bioaccumulation device comprising a sintered body of a raw material mixture mainly composed of steelmaking slag and a metal A1-containing material.

[2] In the apparatus for aquatic organism settlement according to [1] above, the raw material mixture further contains metal iron and / or iron oxide-containing powder (including the case where the powder is composed of only metal iron and / or iron oxide) An instrument for underwater organisms characterized by that.

[3] The aquatic organism settlement apparatus according to [1] or [2] above, wherein the raw material mixture further contains clay.

[4] In the above-mentioned [1] or aquatic epiphytic instrument to [3], the raw material mixture further, for underwater organisms epiphytic which comprises a S i 0 ₂ source other than clay Instruments.

[5] In the aquatic organism settlement apparatus according to any one of the above [1] to [4], the metal A 1-containing material is aluminum loss and / or aluminum polishing dust. Instruments.

[6] The aquatic organism settlement device according to any one of [1] to [5] above, comprising a plate-like portion and one or more fixing legs protruding from the lower surface side of the plate-like portion. An instrument for underwater organisms characterized by this.

[7] Manufacture of an aquatic organism growth device characterized by adding liquid oil to a raw material mainly composed of steelmaking slag and metal A1 and kneading, then molding and firing the molded body Method. -

[8] In the production method of [7] above, the raw material further contains metal iron and / or iron oxide-containing powder (including the case where the powder is composed of only metal iron and iron or iron oxide). The manufacturing method of the apparatus for underwater organism settlement.

[9] The method for producing an aquatic organism settlement device according to [7] or [8], wherein the raw material further contains clay. '

[10] In any of the production method of the above-mentioned [7] to [9], the raw material is further method for producing aquatic organisms epiphytic instrument, which comprises a S i 0 ₂ source other than clay.

[II] In the production method of any one of [7] to [10] above, the metal A1-containing material A method for producing an apparatus for underwater living organisms, characterized in that is an aluminum dross and an aluminum or aluminum polishing dust.

[12] In the production method according to any one of [7] to [11] above, there is provided an apparatus for aquatic organism growth, characterized in that the molded body is fired at an ambient temperature of 600 to 120 ° C. Production method.

[13] In the manufacturing method according to any one of [7] to [12] above, the manufactured underwater organism setting device protrudes from the plate-like portion and the lower surface side of the plate-like portion 1 or 2 A method for producing an apparatus for aquatic organism settlement, comprising the above fixing legs.

[14] A method for installing the aquatic organism settlement apparatus according to any one of [1] to [5] above on an underwater base, wherein a carbonized raw material containing powdery uncarbonated Ca is obtained by a carbonation reaction. The carbonated solid block obtained by consolidation is used as a base for mounting an instrument to be installed in water, and the aquatic organism settlement instrument is adhered to the carbonated solid block so that aquatic organisms are adhered. An installation method for an aquatic organism epiphytic device, characterized by installing the epiphytic device on an underwater base.

[15] A method for installing the aquatic organism settlement apparatus according to [6] above on an underwater base, which is obtained by solidifying a powdery uncarbonated Ca-containing raw material by a carbonation reaction. The carbonate solid block is used as a base for mounting an instrument to be installed in water, and the fixing leg of the underwater organism settlement instrument is inserted into a mounting hole formed in the carbonate solid block. An installation method for an aquatic organism settlement apparatus, characterized in that the aquatic organism settlement apparatus is installed on an underwater base by bonding. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A and FIG. 1B are explanatory diagrams showing an example of the shape of a conventional technique and an apparatus for aquatic organism settlement according to the present invention.

FIG. 2 is an explanatory view showing an embodiment in which the instrument for aquatic organism settlement of the present invention is installed on a base made of a carbonate solidified block.

FIG. 3A and FIG. 3B are explanatory views showing an embodiment when the aquatic organism settlement apparatus of the present invention is used for coral growth. FIG. 4A and FIG. 4B are explanatory diagrams showing an example of a usage pattern of a conventional aquatic organism settlement apparatus.

FIG. 5 is an explanatory view showing another example of the shape of the aquatic organism settlement apparatus of the present invention. FIG. 6 is an explanatory view showing another example of the shape of the aquatic organism settlement apparatus of the present invention. FIG. 7 is an explanatory view showing another example of the shape of the aquatic organism settlement apparatus of the present invention. FIG. 8 is an explanatory view showing another example of the shape of the aquatic organism settlement apparatus of the present invention. FIG. 9 is an explanatory view showing another example of the shape of the aquatic organism settlement apparatus of the present invention. FIG. 10 is an explanatory diagram showing an installation example of the aquatic organism settlement apparatus shown in FIG. FIG. 11 is an explanatory diagram showing an installation example of the aquatic organism settlement apparatus shown in FIG. FIG. 12 is an explanatory view showing an example of use of the aquatic organism settlement apparatus shown in FIG.

(Explanation of symbols)

a, A Settling device, B, B m base, x plate, y fixing leg y! Spacer part, y ₂ insertion part, z hole, e connector. MODE FOR CARRYING OUT THE INVENTION The present invention is effective for the growth and growth of coral seaweeds. In the following description, the same method can be applied to the power seaweed and the like described with coral as an example of the method for the growth and propagation of coral and seaweed using the device for setting.

One embodiment of the apparatus for aquatic organism settlement of the present invention has the same shape as that disclosed in Japanese Patent No. 3 5 3 0 8 3 8 and Japanese Patent Application Laid-Open No. 2 0 4-1 2 1 1 9 5. Therefore, FIG. 1A and FIG. 1B also show an example of the shape of the aquatic organism settlement apparatus of the present invention. That is, the growing device A is composed of a plate-like portion X and a fixing leg y protruding from the lower surface of the plate-like portion. Further, in this example, a hole z for inserting the fixing leg y (insertion portion y ₂ ) of the other setting device A is formed on the upper surface side of the plate-like portion X. In the present embodiment, the fixing leg y includes an insertion portion y ₂ inserted into the hole z of the other setting device A, and upper and lower setting devices by not being inserted into the hole z. It consists of a spacer part that forms a gap (gap D shown in FIG. 3A described later) between the plate-like parts x of A. 'Note that the fixing leg y may be composed of, for example, a truncated cone, a cone, a column, a pyramid, a pyramid, a prism, etc. depending on the depth 'diameter y of the thickness and pore z, becomes substantially be classified as spacer portions yi the insertion portion y _2. Also, two or more fixing legs y may be provided. In addition, holes, grooves, slits, irregularities, and the like that allow living larvae and eggs to enter and grow can be formed on the lower and side surfaces of the upper portion X of the plate. Further, the hole z on the upper surface of the plate-like portion X is not necessarily provided. There is no particular limitation on the size of the setting device A of the present embodiment, but when used for coral setting, the plate-like portion X where the organism is set up needs to be exposed to light. If the diameter of the X-shaped part X is made large, light will not strike the back of the lower surface of the plate-shaped part X, and organisms will not grow. Therefore, in general, the plate-like part X is 2 0 mn! A diameter of ~ 100 mm is appropriate, and from the viewpoint of the growth of organisms and protection from predators, the length of the spacer part yi is several mn! About 20 mm is appropriate. The dressing device of the present invention is not limited to the embodiment shown in FIGS. 1A and 1B, and can have any shape. Several embodiments are shown in FIGS.

Fig. 5 shows a plate-shaped set-up device, Fig. 6 shows a dome-type set-up device, and Fig. 7 shows a roof-type set-up device.

Further, FIG. 8 shows a box-shaped epidermis with the upper part opened or a cylindrical type with the upper and lower parts opened. In the case of the box type, it may have an upper lid. In addition, Fig. 9 shows an example of a box-shaped epiphysis device with a net-like wall surface. These box-type or tube-type settling devices have functions of protecting juvenile corals and trapping island-forming substances such as coral fragments, foraminifera, and shells, for example, by installing them in coral reefs. The settling device of the present invention is mainly composed of steelmaking slag and metal A1 containing material. Depending on, firing of raw material mixture containing metal iron and powder containing iron or iron oxide (including powder consisting only of metal iron and / or iron oxide), clay, sio ₂ source other than clay, etc. Consists of the body. That is, such a raw material mixture is molded into the shape of an appliance, and this molded body is fired. Here, all of the raw materials of the fired body are powder particles.

The copper slag is slag generated in the copper making process of the steel manufacturing process. Examples of such copper slag include desiliconized slag, dephosphorized slag, desulfurized slag, decarburized slag, forged slag, ore reduction slag, and electric furnace slag. One or more of these can be used.

Steelmaking slag contains a considerable amount of iron oxide, and this iron oxide generates a thermite reaction with the metal A 1 during firing. High temperature firing at about 1 200 ° C) is realized. High temperature firing realized by such a thermite reaction densifies the sintered body, contributing to the strength of the fired body. In addition, it helps to provide an appropriate surface roughness to the appliance surface by forming pores when the fired body is produced. Furthermore, steelmaking slag contains a considerable amount of Ca, and a low-melting-point compound containing that Ca is generated during firing, and this low-melting-point compound serves as a binder and contributes to the strength development of the fired body. To do. Moreover, many steel slag also contains A 1 ₂ 0 _3, the A 1 ₂ 0 ₃ becomes a component of the low-melting compounds, contribute to the strength development of the sintered body as part of the binder To do. The metal A 1-containing material is not particularly limited as long as it is a powdery material containing the metal A 1, but it contains 30% by mass or more, preferably 40% by mass or more of the metal A 1. preferable. Examples of such a metal A 1-containing material include aluminum dross and aluminum polishing dust, and one or more of these can be used. Among these, aluminum loss is particularly preferable because it is a by-product containing metal A 1 generated in the aluminum production process and is inexpensive and available in large quantities.

The metal A 1 contained in the metal A 1-containing material undergoes a thermite reaction with iron oxide in the copper slag during firing, and with metal iron and iron oxide-containing powder added as necessary. This is because of the exothermic reaction at this time, High temperature firing at a degree). Also, AI ₂ 0 ₃ produced from metal A 1 during firing, furthermore the A 1 ₂ 0 ₃ contained originally in the metal A 1 containing material becomes a component of the low melting point compound as described above, part of the binder It contributes to the strength development of the fired body. The powder containing metallic iron and iron or iron oxide may be composed only of metallic iron and Z or iron oxide. Examples of powders containing metallic iron and / or iron oxide include, for example, sintered ore powder (sintered ore such as returned ore generated in the iron ore sintering process), iron ore powder, mill scale, and steel pickling line recovery Examples include powders (so-called Rusna iron monoxide, etc.), refined dust produced in the iron-copper manufacturing process, blast furnace dust, etc. One or more of these can be used. The refined dust generated in the steel manufacturing process includes refined dust produced in the hot metal pretreatment process and refined dust produced in the converter decarburization process (converter OG dust). These refined dusts were collected by collecting dust from the exhaust gas generated in the refinement process.

The metallic iron and / or iron oxide-containing powder may be blended as necessary when the amount of iron oxide is insufficient with only iron oxide contained in steelmaking slag. As described above, iron oxide undergoes a thermite reaction with metal A 1 during firing, and high-temperature firing at a low fire degree (approximately 600 to 120 ° C.) is caused by the exothermic reaction at this time. Realize. In addition, metallic iron generates heat when it is oxidized by oxygen in the firing atmosphere, which also contributes to high-temperature firing. The clay is blended as necessary as a shape-retaining agent for molding the raw material mixture (for example, press molding using a mold). Further, S io ₂ contained in the clay, also becomes S i 〇 ₂ source of the low melting point compound generated during firing.

A source of S i 0 ₂ other than the clay is also blended as necessary. Examples of the Sio ₂ source include silica fume and fly ash, and one or more of these can be used. This S i 0 ₂ source is a constituent component of the low-melting-point compound produced during firing. In addition, this S i 0 ₂ source also has the effect of improving the formability when forming the raw material mixture. When the molded body of the above raw material mixture is fired, (a) a metal reaction occurs between the metal A 1 containing the metal A 1 material and the iron oxide in the steelmaking slag, the metal iron and / or iron oxide containing powder Therefore, due to the exothermic reaction at this time, high-temperature firing is realized even at a low fire degree (about 600 to 120), and a fired body that is properly solidified as a whole can be obtained. (B) Thermite Since the high-temperature firing is realized by the reaction, the sintered body is densified, contributing to the strength development of the fired body. (C) The C a content contained in the steelmaking slag, and the metal A 1 containing metal A 1 A low melting point compound is formed by the reaction of A 1 ₂ 0 ₃ produced from A 1 ₂ 0 ₃ and A 1 ₂ 0 ₃ contained in steelmaking slag and S i 0 ₂ contained in steelmaking slag and clay. And (d) by high-temperature firing by a thermite reaction. Since pores are generated on the surface due to the discharge of air in the raw material and the evaporation of low boiling point compounds at high temperatures, the effect of imparting an appropriate roughness to the instrument surface can be obtained. Due to these functions and effects, the resulting dressing device of the present invention has excellent overall strength and moderate roughness on the surface. For this reason, it is hard to break, and it has an appropriate surface roughness, so it has high adhesion to the base and is difficult to drop off from the base. In particular, in the case of the setting device A shown in FIGS. 1A and 1B, the fixing leg and its base are not easily damaged, and the fixing leg is on the base side. It is hard to fall off from the mounting hole. Therefore, it is possible to appropriately prevent the device itself and its main body from falling off the base. In addition, since the raw materials are inexpensive and can be fired at a low temperature, the fuel cost can be reduced and the production can be made at a low cost. Furthermore, it has excellent surface adhesion and excellent biological adhesion and growth due to the minute amount of minerals eluted from the slag component. Each material constituting the raw material mixture needs to be in a granular form in order to obtain a dense fired structure having excellent strength. In addition, their particle size is preferably not more than 120 mesh from the viewpoint of formability. Therefore, each material mentioned above is powdered as needed and adjusted to the required particle size.

In addition, as a mixing ratio of the raw material mixture, the function of each material as described above is suitable. Usually, it is preferable to mix about 5 to 20 parts by mass of the metal A 1 -containing material in terms of metal A 1 with respect to 100 parts by mass of the steelmaking slag. For other materials, if necessary, 5 to 20 parts by mass of metal iron and / or iron oxide-containing powder with respect to 100 parts by mass of steelmaking slag, in terms of metal Fe, S other than clay or clay The iO ₂ source is preferably blended at a ratio of about 10 to 60 parts by mass. Next, the manufacturing method of the aquatic organism settlement apparatus of the present invention as described above will be described.

In this manufacturing method, the raw materials as described above, that is, steelmaking slag and metal A1-containing material are mainly used, and if necessary, powder containing metal iron and / or iron oxide (provided that the powder is metal iron and / or oxide) Liquid oil is added to and kneaded into a raw material containing clay, Sio ₂ source other than clay, etc., and then molded and fired.

Each material constituting the raw material is as described above. The reason why liquid oil is added to the raw material instead of water is that when water is added, metal A 1 of the metal A 1-containing material is hydroxylated and generates heat. In addition, the use of liquid oil improves the demoldability when the molded body is demolded. There are no particular restrictions on the liquid oils that can be used, and vegetable oils, mineral oils, etc. can be used. For example, if used oils such as used cooking oil (boiled oil) and engine oil are used, it is advantageous in terms of manufacturing costs. is there.

The amount of liquid oil added is suitably about 8 to 15 parts by mass with respect to 100 parts by mass of the raw material from the viewpoint of shape retention of the molded product. The raw material to which the liquid oil is added is kneaded by a kneading means such as a mortar mixer, and then formed into a tool shape. Normally, this molding is easy to remove from the mold because of the force S performed by press molding using a mold and the liquid oil contained in the raw material.

Next, the molded body is fired in a moderately oxidizing atmosphere at 6 00 to 1 2 00 ¾, preferably 8 00 to 100 0 0. Therefore, ordinary pottery firing kiln (equipment) But it can be fired. In this calcination, high temperature calcination of 2700 ° C. or higher is partially achieved by a metal reaction between the metal A 1 contained in the raw material and iron oxide, and the compact is calcined and solidified. At that time, a fired body having excellent strength and moderate roughness on the surface can be obtained by the effects (a) to (d) described above. There is no particular limitation on the form in which the device for aquatic organisms of the present invention is installed on an underwater base as a device for causing corals and seaweeds to settle. For example, in a device having the configuration shown in FIGS. 1A and 1B, as shown in FIG. 4B, the fixture fixing leg y is inserted into the mounting hole P formed in the underwater base B. Glue with adhesive. In addition, in the apparatus of the form shown in FIGS. 5 to 9, it may be directly bonded to the surface of the underwater base B with an adhesive or the like. Or you may fix with a volt | bolt etc. In either case, for example, by installing it on a base such as a coral reef, it can be used as a coral settlement device. FIG. 10 shows an example of installation of the epidermis apparatus a of FIG. 5 by such a method, and FIG. 11 shows an example of installation of the epidermis instrument a of FIG. In these cases, the coral reef reinforcement effect may be expected, and in the case of an epiphytic device having a shape as shown in FIGS. 5 to 7, the attachment shown in FIGS. 1A and 1B is possible. It can also be used as a planting base for raw equipment A. In particular, the dome type roof type shown in Fig. 6 and Fig. 7 can be installed to cover the leaf. FIG. 12 shows a state in which a plurality of plate-like devices a shown in FIG. 5 are connected by a connecting device e and may be installed on the base B in this state, or in this state the coral After the larvae are allowed to grow, the connector e may be removed to separate the plate-like instruments a, and they may be installed on the base B in a form as shown in FIG. Next, a preferred method for installing the aquatic organism settlement apparatus of the present invention on an underwater base will be described.

In this installation method, a carbonated solid block obtained by solidifying a powdery uncarbonated Ca-containing raw material by a carbonation reaction is used as a base for mounting an appliance to be installed in water. By attaching the dressing device of the present invention to the carbonate solid block, the dressing device is installed on the underwater base. Also, as shown in Figure 1A and Figure 1B In the case of a device of the form (hereinafter referred to as “growth device A” for convenience of description), the fixing device A fixing leg is inserted into the attachment hole formed in the carbonized solid block and bonded. Therefore, the device A for setting the epidermis is installed on the underwater base. In the following, this installation method will be described with reference to the case of the setting tool A. The attachment device A may be attached to the carbonated solid block before the carbonated solid block is submerged in water or after it is submerged in water.

Carbonated solid block is contained in the raw material by filling the formwork with moisture-added granular uncarbonated Ca-containing raw material (for example, steel slag) and blowing carbon dioxide into this raw material packed bed It is obtained by causing a carbonation reaction to occur in uncarbonated C a (C a O), and solidifying the raw material packed layer using calcium carbonate generated by this carbonation reaction as a main binder. Such carbonized solid block can be used as raw material for iron and copper slag and other waste materials containing CaO, so it is not only very useful from the viewpoint of resource recycling, but also used in water. If this is the case, it can be said that it is an environmentally friendly material without the risk of raising the pH of water unlike a concrete product. Such a carbonate solidified block was found to be very suitable as an underwater base for installing the apparatus A for setting. That is, since the carbonate solid body block is a porous body, the inner surface of the mounting hole formed therein also has an appropriate surface roughness. In the mounting hole having such an appropriate surface roughness, Similarly, by attaching and fixing the fixing leg of the device A, which has an appropriate surface roughness, a high bonding strength can be obtained between the two, so that the device itself may fall off the base. It can be prevented appropriately. In addition, the solid carbonate block, which is the base, does not raise the pH of water like a concrete product, and it elutes a very small amount of minerals from the slag component, which is a raw material. And a particularly good environment for growth. The installation method of the above-mentioned epiphytic appliance A is suitable for the method of growing corals. ing. Fig. 2 shows an example of installation when coral breeding is performed using an epidermis device A having the shape shown in Figs. 1A and 1B. The epidermis device A is fixed to its fixing leg. Insert y into the mounting hole p formed on the surface of the base B m (carbonized solid block) and fix it with an adhesive, and coral is deposited between the plate X and the base B m surface. Secure to the basement B m in such a way that a viable gap C is formed.

In addition, in order to proliferate the coral particularly efficiently using such an installation method of the setting device A, it is necessary to install the device through the following steps (i) to (iii). preferable.

(i) Settling process: By placing the setting device A on a suitable place for coral larvae, coral larvae are allowed to grow on at least the lower surface of the plate-like part X. Preferably, as shown in FIG. 3A, a plurality of setting devices A are attached to the holes z on the upper surface side of each plate-like portion X, and the fixing leg portion y (insertion portion y ₂ of the other setting devices A). ), And pile up in multiple stages so that a gap D (gap due to the spacer part y!) Is formed between the plate-like parts X of the upper and lower setting devices A. Place the coral in a suitable place for larvae. Coral larvae that grow on the basement in the sea tend to grow especially near the edge of the bottom surface of the basement, and the coral that has grown on the bottom surface of the basement grows gradually toward the side of the basement. Therefore, as shown in Fig. 3A, a set of coral larvae that are stacked in multiple stages as shown in Fig. Larva s. Is born. And the coral larva s that has grown on the lower surface of the plate-like portion X in this way. Since it grows in the gap D (space) between the upper and lower plate parts X, it is protected appropriately from predators.

(ii) Collection step: The settling device A on which the coral larvae have settled in the above-mentioned settlement step is collected from a suitable place for the larval settlement.

(iii) Transplanting process: The collected planting equipment A is transplanted to the base of the coral transplantation area (carbonized solid block) after passing through the process of growing coral larvae in a suitable coral growth area if necessary. . In this transplant, each epiphytic device is shown in Figure 3B. A fixing leg y (insertion portion y ₂ ) of A is inserted into a mounting hole p formed on the surface of the base plate B m and fixed with an adhesive, and between the plate-like portion X and the base plate B m. Fix the growing device A to the base B m so that a gap C where coral can grow is formed. As a result, the coral s grows gradually while being protected from predators, and gradually grows on the side surface-upper surface of the plate-like portion X and the base B m. If it is difficult to carry out the above steps (i) to (iii) due to space constraints or cost, the larvae will be attached to the carbonated solid block with the equipment A. It may be installed (sunk) directly on a suitable site for growth or on a breeding site to allow coral larvae to grow. In this case as well, the attachment device A may be attached to the carbonated solid block before the carbonized solid block is submerged in the water or after it is submerged in water. Next, in the case where the installation method of the present invention is applied to coral growth, the shape of the carbonate solid block, the attachment form of the establishment apparatus (establishment apparatus A or other establishment apparatus), the base and Preferred conditions regarding the arrangement form of the carbonate solid block will be described.

Use as a base from the standpoints of easy installation (planting) of epiphytic equipment, ease of drilling when replacing epiphytic equipment A, and stability of carbonated solid block in water. The shape of the carbonate solidified block is preferably a rectangular parallelepiped (for example, a flat shape of 100 mm x 100 mm x 500 mm).

When attaching an epiphytic appliance to a carbonated solid block, the desired coral group density (for example, 10 group Zm ² ) can be obtained, and the surface can be easily cleaned during maintenance. The installation interval of the instrument is 2 0 O mn! It is preferable to be about ~ 25 O mm. In particular, when attaching a settling device to the side of the carbonated solid block, coral is difficult to grow on the lower side of the side due to the influence of drifting sand and sedimentary mud. If there is a possibility of being buried due to the influence, it is preferable to install the epiphytic device on the upper side of the base. When attaching the settling device A to the carbonated solid block, drill a mounting hole corresponding to the fixing leg of the settling device A in the carbonated solid block, and fill this mounting hole with underwater adhesive. Insert and attach the fixing leg of the device A.

The arrangement of the carbonate solid block on the sea floor is set to 2.5 for the workability when installing the settling device and the prevention of damage to the settable setting device A by the operator himself. It is preferable to set it to m or more.

The work of attaching the settling device to the carbonated block is performed in the sea to protect the coral larvae that have grown on the settling device. In the case of a non-installed carbonate solid block, the formation of the mounting hole of the carbonate solid block can be performed on land, but in the case of an existing carbonate solid block, it is performed in water. The basic production conditions for the solid carbonate block used as a base are described below.

Carbonated solid block is obtained by bringing a powdery uncarbonated Ca-containing raw material into contact with carbonic acid gas in the presence of water, and reacting the uncarbonated Ca with carbon dioxide via water (carbonation reaction). It is manufactured by producing calcium carbonate and solidifying (solidifying) the raw material with this calcium carbonate as a binder.

Non-carbonated Ca, ie, CaO and Z or Ca (OH) ₂ contained in the uncarbonated Ca-containing raw material, provided that it is at least part of the composition of the solid particles Therefore, in addition to C a O, C a (OH) ₂ as minerals, 2 C a O · S i 0 ₂ , 3 C a O · S i 0 ₂ , yarns such as glass Also included as part of the composition are solid particles.

There are no particular restrictions on the type of granular uncarbonated Ca-containing raw material used. For example, slag generated in the steel manufacturing process (for example, decarburized slag, dephosphorized slag, desulfurized slag, desiliconized slag, etc.) Copper slag), concrete (for example, concrete waste), mortar, glass, alumina cement, CaO-containing refractory, etc., and one or more of these may be used alone or in combination be able to. These materials are crushed into powder as needed and used as raw materials. The uncarbonated Ca-containing raw material does not need to be solid particles containing the entire uncarbonated Ca. That is, if the by carbonation of non carbonation C a contained in the non-carbonated C a containing feedstock as a binder one carbonated solid a sufficient amount of C a CO ₃ Ru generated, non-carbonated C The a-containing raw material may contain solid particles not containing uncarbonated Ca. Examples of such solid particles include natural stone, sand, soluble silica, metal (for example, metallic iron, iron oxide) and the like.

Among these, metallic iron, iron oxide, soluble silica, and the like effectively act as nutrients for seawater sulfur and phosphorus fixing agents and aquatic plants. In addition to these, an optional component (particle) can be contained in an appropriate amount, that is, as long as the strength of the carbonated solid is not reduced.

In addition, there is no particular limitation on the particle size of the powdery uncarbonated Ca-containing raw material, but in order to increase the reactivity by securing the contact area with Co ₂ , it is preferable that the particle size is somewhat small. In addition, if the particle size of the uncarbonated Ca-containing raw material is too large, the carbon particles that cannot be carbonated remain inside the raw material particles, so that the raw material particles in the produced carbonated solid body expand and collapse, causing cracks, etc. It may become.

Carbonated solid block is generally produced using a mold. That is, a raw material filling layer is formed by filling a mold with an uncarbonated Ca-containing raw material appropriately containing water, and blowing carbon dioxide or a carbon dioxide containing gas into the raw material filling layer. The whole is consolidated.

Examples of carbon dioxide or carbon dioxide-containing gas used to cause the carbonation reaction include exhaust gas from a lime calcining factory (usually around C0 ₂ : 25% by volume) discharged from an integrated steelworks. Heating furnace exhaust gas (usually around C0 ₂ : 6.5% by volume) is suitable, but is not limited thereto. CO in the gas

_{(2) If the} concentration is too low, there will be a problem that the processing efficiency will decrease, but other problems will not be exceptional. Therefore, the co ₂ concentration is not particularly limited, but it is preferable to set the CO ₂ concentration to 3% by volume or more for efficient treatment.

Although there is no particular limitation on the supply amount of carbon dioxide, is as a general guideline ^{0. 0 0 4~0. 5 m 3} min. T ( raw ton) about the gas supply amount is ensured I can do it. In addition, there is no special restriction on the gas supply time (carbonation treatment time), but as a guideline, the point at which the supply amount of carbon dioxide gas is 3% by mass or more of the mass of the uncarbonated Ca-containing raw material, that is, , in terms of gas amount material 1 t per 1 5 m ³ or more, preferably it is preferred that 2 0 0 m ³ or more carbon dioxide performs the gas supply until fed. Examples The raw materials used were those having a particle size of 12.5 mesh or less. Steelmaking slag (dephosphorization slag) 100 parts by mass of aluminum dross (metal A 1 content: 40% by mass) 40 parts by mass, iron oxide powder 10 parts by mass, clay 50 parts by mass Thus, a raw material mixture was obtained. 8 to 15 parts by mass of liquid oil was added to 100 parts by mass of this raw material mixture and kneaded with a mortar mixer, followed by press molding to obtain a molded product having a shape as shown in FIG. By firing this molded body in an oxidizing atmosphere at 900 ° C. for 8 hours, an epidermis device having high strength and appropriate surface roughness could be produced.

As a result of component analysis of this epidermis device, T ′ F e: 5.5 mass%, F e 0: 0.4 mass%, M n O: 0.1 mass%, C a O: 1.2 _{mass%, S i O 2: 2} 6. 5 wt%, M g O: 0. 5 _{wt%, A 1 2 O 3:} 5 4. 5 _{_{wt%, P 2 O 5: 0.}} 3 wt% met It was.

INDUSTRIAL APPLICABILITY The device for aquatic organisms according to the present invention has excellent strength and is not easily damaged, and has an appropriate surface roughness and thus has high adhesion to the substrate. It is hard to fall off. In addition, since the raw materials are inexpensive and can be fired at a low temperature, there is an advantage that they can be manufactured at a low cost. In addition, it has excellent surface adhesion and is excellent in the adhesion and growth of organisms due to the minute amount of minerals eluted from the raw slag components.

Further, in the case of an aquatic organism settlement device having a plate-like portion and one or more fixing legs protruding from the lower surface side of the plate-like portion, the fixing leg portion has excellent strength. In addition, it is difficult to cause damage to the base part of the base plate, and has an appropriate surface roughness, so that the adhesiveness is enhanced and the fixing leg portion is not easily dropped from the mounting hole on the base side. For this reason, it is possible to appropriately prevent the device itself and its main body from falling off the base.

Further, according to the method for producing an aquatic organism settlement apparatus according to the present invention, such an aquatic organism settlement instrument can be produced appropriately and efficiently.

Furthermore, according to the installation method of the aquatic organism settlement apparatus according to the present invention, high adhesion between the deposition apparatus and the substrate can be obtained by using a carbonate solid block that is a porous body as the substrate. It is possible to more appropriately prevent the device itself from falling off the base. In addition, the solid carbonate block, which is the base, does not raise the pH of water like a concrete product, and it elutes a minute amount of minerals from the slag component, etc. Can provide a particularly good environment.

Claims

The scope of the claims

1. An aquatic bioaccumulation device comprising a sintered body of a raw material mixture mainly composed of steelmaking slag and a metal A1-containing material.

2. The raw material mixture further includes metallic iron and Z or iron oxide-containing powder (including the case where the powder is composed only of metallic iron and iron or iron oxide). Biological equipment.

3. The device for aquatic organism settlement according to claim 1 or 2, wherein the raw material mixture further contains clay.

4. Raw material mixture further aquatic organisms epiphytic instrument according to any one of claims 1 to 3, characterized in that it comprises an S i 0 ₂ sources other than clay.

5. The apparatus for aquatic organism settlement according to any one of claims 1 to 4, wherein the metal A 1-containing material is aluminum loss and / or aluminum polishing dust.

6. The underwater organism attachment according to any one of claims 1 to 5, further comprising a plate-like portion and one or more fixing legs protruding from the lower surface side of the plate-like portion. Raw instrument.

7. A method for producing an aquatic life-setting device characterized by adding liquid oil to a raw material mainly comprising steel-making slag and metal A 1 and kneading, followed by molding and firing the molded body .

8. The raw material further contains metallic iron and / or iron oxide-containing powder (including the case where the powder is composed of metallic iron and Z or iron oxide only).

8. A method for producing an apparatus for aquatic organism settlement according to 7.

9. The method for producing an aquatic organism settlement apparatus according to claim 7 or 8, wherein the raw material further contains clay.

1 0. Feedstock further method aquatic epiphytic instrument according to any one of claims 7-9, characterized in that it comprises an S i 0 ₂ sources other than clay.

11. The underwater organism settlement according to any one of claims 7 to 10, characterized in that the metal A1 containing material is aluminum loss and / or aluminum polishing dust. A method for manufacturing appliances.

1 2. The method for producing an aquatic organism settlement device according to any one of claims 7 to 11, characterized in that the molded body is fired at an atmospheric temperature of 600 to 120 Ot. .

1 3. The produced aquatic organism settlement apparatus has a plate-like portion and one or more fixing legs protruding from the lower surface side of the plate-like portion. 1. A method for producing an aquatic organism settlement device according to any one of 1 to 2.

1 4. A method for installing the aquatic organism settlement apparatus according to any one of claims 1 to 5 on an underwater base,

A carbonate solid block obtained by solidifying a powdery uncarbonated Ca-containing raw material by a carbonation reaction is used as a base for mounting an appliance to be installed in water. A method for installing an aquatic organism settlement instrument, wherein the aquatic organism settlement instrument is installed on an underwater base by bonding the aquatic organism settlement instrument.

1 5. A method for installing the aquatic organism settlement apparatus according to claim 6 on an underwater base,

A carbonated solid block obtained by solidifying a powdery uncarbonated Ca-containing raw material by a carbonation reaction is used as a base for mounting an appliance to be installed in water. An aquatic organism setting device is installed on an underwater base by inserting and bonding a fixing leg portion of the underwater organism setting device into the formed mounting hole. How to install the equipment for epiphysis.