JP2010144331A5 - - Google Patents

Description

Waste detoxified concrete hermetic block and its manufacturing method

The present invention relates to a block-type concrete block formed by detoxifying a residue remaining after incineration of waste and the like, solidifying with concrete, and further sealed with concrete, and a method for manufacturing the same.

There are three types of final disposal sites for waste: “stable”, “managed” and “barrier”. Of these, the final disposal site for general waste is landfilled with a mixture of perishable organic materials (such as garbage) and inorganic materials (such as incineration residues) that contain environmental pollutants such as heavy metals. “Management type” with processing facility is adopted. However, this "management type" has various problems such as the risk of groundwater contamination due to breakage of the water shielding sheet and the long-term management of the site after landfill completion. It is counted as one of the 'nuisance facilities' most hated by citizens as “NIMBY” (not in my backyard).
On the other hand, block-type block (block-type final disposal) avoids landfill, incineration residue, gypsum and various wastes are treated with incineration residue chemicals for the purpose of final disposal, and mixed with cement to solidify Solidifying concrete is known.
The present invention further improves the concrete solidification technology to realize a recycled product that can be effectively used for various purposes.

With regard to this conventional concrete solidification, as described in Patent Document 1, it is easy to manufacture and construct a concrete block in which a waste compression molding is embedded, and to improve the bond strength between the blocks. Therefore, by making improvements such as providing protrusions and recesses that fit complementarily to each pair of symmetrical surfaces of a cubic concrete block, construction is easy and various ways of stacking are possible. And the technique which remarkably improves a joint strength is disclosed since the end of a reinforcing bar can be welded in a state where blocks are combined.
Japanese Utility Model 5-10535

Thus, in the structure of patent document 1, since it is a structure which coat | covers the surroundings of the waste molding obtained by compressing incineration ash etc. of industrial waste with concrete, it compresses waste. It is difficult to produce a molded product by processing, and there are problems in terms of workability such as compression workability and generation of dust in terms of compression processing equipment. Also, when covering the periphery with concrete, it is necessary to inject primary concrete into the bottom and place a compression molded body thereon, and then inject and form the concrete around it, resulting in poor workability.
The technical problem of the present invention is to realize such a block by paying attention to such a problem and not compressing the waste, but mixing with cement and solidifying the concrete, and then sealing with secondary concrete. . This sealed concrete block is also a concrete block because the embedded internal waste incineration residue is solid, so the strength of the entire block is robust, and it can be used for various purposes such as retaining walls, emergency disasters or earth and sand disasters, closed roads, Widely used as a recycled product, demand can be expected.

The technical problem of the present invention is solved by the following means. Claim 1 is that the incineration residue of the waste and at least cement and water are mixed and molded to solidify the concrete, and used fishing nets such as fishing nets and mozuku, fishing lines discarded on the beach, etc. as they are or 10-20 cm The concrete solidified hermetically sealed block is characterized by strengthening the tensile strength by cutting and mixing into a concrete block, and sealing the concrete solidified body with another concrete to form a concrete body both inside and outside. Is the method.
In this way, since the incineration residue of waste, at least cement and water are mixed and molded and concrete solidified, this concrete solidified body is covered and sealed with another concrete, so both inside and outside the finished product It becomes possible to use a concrete body. As a result, unlike the conventional method of embedding waste incineration ash and the like in a state of being compressed, the manufacturing method is simple and the manufacturing equipment cost is low. There is no fear of dust generation as in the compression work of waste incineration ash, and there is no problem in the work environment.
In addition, as described at the end of paragraph “0018”, by pulling a used fishing net or aquaculture net such as a mozuku, a fishing line discarded on the beach as it is or by cutting to 10 to 20 cm and mixing, Can be strengthened.

A second aspect of the present invention is the method for producing a concrete solidified hermetic block according to claim 1, wherein the incineration residue is detoxified in advance before mixing with cement.
Thus, since the incineration residue is detoxified in advance before mixing with cement, there is no problem that harmful substances are eluted during use as a recycled product and cause environmental pollution.

Claim 3 is a product manufactured by the manufacturing method according to claim 1, and is used when incineration residue of waste, at least cement and water and aquaculture net such as used fishing net and mozuku, It is composed of concrete bodies both inside and outside by sealing and sealing concrete with enhanced tensile strength by cutting the fishing line discarded on the beach as it is or by cutting it into 10-20cm and mixing it. It is a concrete solidification hermetic block type block characterized by having.
In this way, since the concrete solidified body formed by mixing waste incineration residue and at least cement and water is a product covered and sealed with another concrete, both inside and outside are composed of concrete body, Because it is strong in strength, it can be used for various purposes as a recycled product, contributing to the effective use of resources.
Further, the tensile strength can be enhanced by mixing a used fishing net or aquaculture net such as a mozuku, a fishing line discarded on the beach or the like as it is or cut into 10 to 20 cm.

A fourth aspect of the present invention is the concrete solidified hermetic block according to the third aspect, wherein the incineration residue is previously detoxified before being mixed with cement.
In this way, since the incineration residue is detoxified before mixing with cement, there is no danger of toxic substances eluting during use as a recycled product and causing environmental pollution. .

Since the incineration residue of waste, cement and water are mixed, molded and solidified, and then covered and sealed with another concrete as in claim 1, both the inside and outside of the finished product It becomes possible to do. As a result, unlike the conventional method in which waste incineration ash is compressed and embedded in concrete, the manufacturing method is simple and the manufacturing equipment costs are low. There is no fear of dust generation as in the compression work of waste incineration ash, and there is no problem in the work environment.
Further, the tensile strength can be enhanced by mixing a used fishing net or aquaculture net such as a mozuku, a fishing line discarded on the beach or the like as it is or cut into 10 to 20 cm.

As described in claim 2, since the incineration residue is detoxified in advance before mixing with cement, there is a problem in that harmful substances are eluted during use as a recycled product, resulting in environmental pollution. do not do.

Since the concrete solidified body formed by mixing waste incineration residue, cement and water is a product sealed and sealed with another concrete, it is composed of a concrete body both inside and outside. In addition, since it is strong in strength, it can be used as a recycled product for various purposes and contribute to the effective use of resources.
Further, the tensile strength can be enhanced by mixing a used fishing net or aquaculture net such as a mozuku, a fishing line discarded on the beach or the like as it is or cut into 10 to 20 cm.

As described in claim 4, since the incineration residue is detoxified in advance before mixing with cement, there is a danger that harmful substances may be eluted during use as a recycled product, resulting in environmental pollution. Does not occur.

Next, an embodiment of how the concrete solidified hermetic block and the manufacturing method thereof according to the present invention are practically described will be described. The concrete solidified hermetic block according to the present invention is sequentially manufactured in the steps of FIG. 1 → FIG. 2 → FIG.
Fig. 1 shows the incineration residue solidified, after mixing incineration residue such as waste tires and plastics, cement and water, then left in the molded state for 4-5 days to cure and dry Manufactured by.
Since incineration residue may contain harmful substances, it should be detoxified using treatment chemicals and then solidified.

The concrete solidified material 1 in FIG. 1 has an outer shape and an outer size according to the form of the final product. Therefore, when the final product is a rectangular block, the rectangular concrete solidified material 1 as shown in FIG. 1 is preferable.
Although it may be molded using a mold as in the case of molding a concrete block, it may be cast by casting into a wooden formwork, and the molding technique is not particularly limited.
There are various chemicals to be detoxified before mixing with cement, and there are also liquids and powders, which are selected and used according to the contents of the incineration residue.

The concrete solidified material 1 obtained by solidifying the incineration residue is shielded from the outside air by being embedded in the concrete and covering as shown in FIG.
Reference numeral 2 denotes a mold, which has an internal shape corresponding to the outer shape of the final product. In the illustrated example, a rectangular cavity is formed.
The concrete solidified material 1 shown in FIG. 1 is accommodated in the mold 2, and the concrete solidified material 1 is placed in the mold 2 with the spacer means interposed at the lower portion thereof, so that the covering concrete is covered. Concrete is filled into the mold 2 and molded in a state where the gap G1 corresponding to the thickness is left.

The gap G2 between the solidified concrete 1 and the side surface of the formwork is also dimensioned so as to have a preset covering thickness.
Moreover, the upper side of the concrete solidified material 1 is filled with concrete until the upper covering thickness G3 is reached, and then the filling is completed. After that, it is left for about 4 to 5 days to be cured and dried. It is complete.
Next, when the mold 2 is disassembled or released, the concrete solidified hermetic block B in a state where the outer surface of the concrete solidified material 1 is covered with the hermetic concrete 3 as shown in FIG. 3 is completed.
The covering thickness G1 to G3 is preferably about 10 cm, but can be about 5 to 15 cm. If it is less than 5 cm, it is too thin and the strength is insufficient, and if it exceeds 15 cm, the consumption of the incineration residue concrete solidified material 1 is relatively small.

Depending on the application of the concrete solidification hermetic block B, when reinforcing bars are embedded in the concrete 3 and solidified, the strength can be increased.
For example, as shown in FIG. 2, if the reinforcing bars 4 are arranged in the spaces G1, G2, and G3 between the solidified material 1 inside the mold 2 as shown in FIG. 2, a robust recycled product can be realized.
If the concrete is filled in a state in which the inverted U-shaped hanging metal fitting 5 formed of a reinforcing bar is connected to the reinforcing bar 4, the handling of the product becomes convenient.

FIG. 4 is a flowchart showing the above manufacturing method as a process diagram. After detoxifying the incineration residue in step S1, cement and water are mixed in step S2 to obtain a muddy state capable of being cast.
Next, in step S3, the incineration residue is solidified by pouring into molding means such as a mold or a mold, and molding and curing. As described above, when it is necessary to prevent the product obtained by solidifying the incineration residue from being damaged, it can be reinforced by inserting a reinforcing bar, a wire, a wire mesh, or the like inside the reinforced concrete. It is also possible to enhance the tensile strength by mixing farmed nets such as used fishing nets and mozuku, fishing lines discarded on the beach as they are or by cutting them into 10-20 cm.

Next, in step S4, the concrete solidified product of the incineration residue thus molded is wrapped with ordinary concrete, sealed, and covered. In this case, as shown in FIG. 2, it is a simple manufacturing method that uses a mold 2 or a mold, accommodates the concrete solidified material 1 in the mold 2, and fills and molds the concrete around it.
In step S5, after removing the mold and mold after curing, the process is completed in step S6.
FIG. 5 shows an example of a finished product, which is called a ton block having a weight of about 1 ton, and has an inverted U-shaped metal fitting 5 for lifting at the center of the upper part. Has an uneven surface like a normal concrete block. Concave grooves 8 and 9 are formed on both the left and right end surfaces to prevent movement and fix functions during use.

Such large and heavy blocks can be used to prevent scattering and movement of light objects during a typhoon, or to use retaining walls, wave-dissipating blocks, prevention of sediment runoff, substituting sandbags in case of floods, and various temporary installations during disasters. There are endless uses for recycled products, such as for roads, closed roads, and various compartments.
Since the inside is also solidified and solid, it can be used for such applications that require strength. In addition, since it can be easily molded into various shapes, it is easy to manufacture and versatile. Unlike compression moldings such as incineration ash, there is no risk of dust scattering and no deterioration of the work environment. .

As described above, according to the present invention, after incineration residue is solidified, the surface is thickly sealed with concrete so as to be shielded from the outside air, so that it is easy and robust to manufacture, and is practically used as a recycled product for various applications. It can be spread and contribute to the effective use of resources.

It is a longitudinal cross-sectional view of the state which solidified the incineration residue. It is a longitudinal cross-sectional view of the state which accommodated the concrete solidified material of FIG. 1 in the mold. It is a longitudinal cross-sectional view of the completed concrete solidification sealing block type block. It is a flowchart which shows the manufacturing method of a concrete solidification sealing block type block with a process drawing. It is a perspective view of the ton block implement | achieved by the concrete solidification sealing block type block.

(1) Concrete solidified material from incineration residue (2) Formwork (3) Sealed concrete (B) Solidified concrete blockade block (4) Reinforcing bar (5) Hanging bracket

Claims (2)

Waste incineration residue and at least cement and water are mixed and molded to solidify the concrete , then used fishing nets, mozuku and other farming nets, fishing lines discarded on the beach, etc., or cut to 10-20 cm and mixed The concrete solidified hermetically sealed block manufacturing method is characterized in that the tensile strength is increased and the concrete solidified body is covered and sealed with another concrete to form a concrete body both inside and outside.
By mixing waste incineration residue, at least cement and water, and forming used fishing nets, aquaculture nets such as mozuku, fishing lines discarded on the beach as they are or by cutting to 10-20 cm and mixing The concrete solidified hermetic block is characterized in that the concrete solidified body with enhanced tensile strength is covered and sealed with another concrete so that both the inside and outside are composed of concrete.