JPH10182206A - Production of water permeable molding material by utilizing waste material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a process for producing water permeable molding materils by utilizing waste materials as recycling materials. SOLUTION: This process consists of a grain forming stage for obtaining grains of suitable grain sizes by either treatment of crushing the waste materials or solidifying these materials by dehydration, an intimate mixing method for obtaining the compds. to be molded by intimately mixing adhesives consisting of an epoxy resin as a chief material with the grains of the waste materials obtd. by this grain forming stage and a molding stage for pouring the compds. to be molded which are obtd. by this intimate mixing stage into forms and obtaining the water permeable molding materials by subjecting these compds. to pressurizing, molding and bonding, then to releasing from the molds. The treatments are easy without having any restriction on scales and the operation is possible on any scales. The resulted products have relatively high strength, internally have open cells, have excellent water permeability and air permeability, are usable for, for example, blocks, road pavement materials, gratings, etc., and are extremely useful as one means for the effective utilization of the waste materials.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a water-permeable molded material using waste materials such as asphalt, concrete, gravel, and wood generated when sludge or roads are renovated or buildings are demolished.

[0002]

2. Description of the Related Art Conventionally, a large amount of waste materials and sludge such as asphalt, concrete, gravel, wood, etc. have been generated during road remodeling, building demolition, etc., but there is no value other than landfill, and it is almost effectively used. Instead, he digs a hole in the mountains and fills it. However, there is a problem that it is gradually becoming difficult to secure a land to fill the land due to environmental problems and other reasons. Sludge is granulated to a size of 5 to 15 mm after the removal of harmful components contained therein, and is used for landfill. However, it has the same problems as described above.

[0003]

The problem to be solved is that waste materials such as asphalt, concrete, gravel, wood, etc. and sludge are almost effectively used at the time of remodeling roads and dismantling buildings, which have been generated in large quantities in the past. Instead, they dug holes in the mountains and buried them.However, due to environmental issues and other reasons, it has become increasingly difficult to secure land to fill the holes. The present invention provides a method for producing a water-permeable molded material by mixing an adhesive with waste material and bonding and molding the same.

[0004]

Means for Solving the Problems As shown in FIG. 1, the method for producing a waste material-using water-permeable molded material according to the first invention is performed by either crushing the waste material or solidifying it by dehydration. A granulation step of obtaining granules having an appropriate particle diameter, a mixing step of mixing an adhesive with the waste material granules obtained in the granulation step to obtain a compound to be molded, and a mixing step obtained by the mixing step. It comprises a molding step of injecting the compound to be molded into a mold, pressing, molding, bonding, releasing, and obtaining a water-permeable molded material.

[0005] Waste materials are a general term for waste materials such as asphalt, concrete, gravel, wood, etc. and sludge generated when roads are renovated or buildings are demolished mainly in cities.

In the method for producing a water-permeable molded material using waste material according to the second invention, the compound to be molded obtained in the mixing step of the first invention is poured into a metal frame as shown in FIG. It is formed by pressing, molding, not releasing, and integrally joining with the frame. The frame is used as a reinforcing member of the obtained water-permeable molded material.

A third invention is characterized in that, in addition to the structure of the first or second invention, an adhesive mainly composed of an epoxy resin is used as an adhesive.

According to the first aspect of the present invention, the treatment is easy, there is no limitation on the scale, it can be operated on any scale from the cottage handicraft industry to the large-scale industry, and the obtained molded product is obtained from waste material. The granules are bonded by adhesive at the contact points of the granules, and have relatively high strength, continuous pores inside, excellent water permeability and air permeability, and can be used for block grating, etc. Therefore, it is extremely useful as a means for effectively utilizing waste materials.

According to the second invention, in addition to the operation and effect of the first invention, when a relatively thin and large load is applied, a metal frame is used as a reinforcing member of the water-permeable molded material obtained. Since it functions, it is effective for manufacturing, for example, grating.

According to the third aspect, in addition to the effects of the first or second aspect, the adhesive containing an epoxy resin as a main component is easily cured by mixing with an appropriate curing agent, and is inexpensive. Yes, good adhesion, no adhesion to some plastics such as PVC, but it can be said to be a universal adhesive that adheres almost everything, chemical resistance, weather resistance, mechanical properties Also, since it has excellent electrical properties, it is most suitable for manufacturing the water-permeable molded material by combining granules obtained from miscellaneous waste materials.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a method of manufacturing a water-permeable molded material according to the present invention will be described with reference to FIG. 1. A granulating step of turning waste material into granules having an appropriate particle size range, and a granulating step thereof And a molding step of molding and combining the compound to be molded obtained in the mixing step.

[0012] Explaining each of them, the waste materials of the raw materials handled in the present invention are a general term for waste materials such as asphalt, concrete, gravel, wood, etc. and sludge generated when renovating roads or dismantling buildings. -Although the shape, dimensions and properties are various, the present invention does not cover garbage, plastics and papers, which are so-called municipal waste from homes.

First, the granulating step will be described. The shape and size of the waste material to be sent to the mixing process is as close to a sphere as possible, and it is not preferable that the particle size range is too wide.
Desirably, it is 5 mm. However, it is difficult to obtain a material close to a spherical shape from the waste material. The best shape is the same as ordinary gravel or crushed stone, and a slightly flat or complicated shape can also be used. .

When roughly classified, waste materials are classified into those having a diameter larger than the preferred particle size range and those having a small particle size. The former is selected in advance, homogenized as much as possible, crushed by a crusher or the like, and sieved to obtain granules having a desired particle size range. Although there is the latter, for example, sludge, since sludge as it generally contains a harmful component, the harmful component is previously removed in another place. The sludge from which the harmful components have been removed is dehydrated by a sludge treatment machine, granulated, and solidified to obtain granules having a desired particle size range. In addition, it is preferable that the particles smaller than the desired particle size range generated by the former crushing are mixed with the latter and granulated.

Next, the mixing step will be described. The particles of the waste material obtained in the granulation step are put into a mixer, and an adhesive mainly composed of an epoxy resin is mixed. Harmless if necessary
A non-polluting colorant may be mixed. As the adhesive, for example, an adhesive for building civil engineering including an epoxy resin paste is preferable. This is an adhesive containing an epoxy resin as a main component. The adhesive is hardened even at a low temperature by a polyamine such as diethylenetriamine, and becomes a tough resin. When the resin is interposed between objects, the objects are strongly bonded.

This adhesive is inexpensive, has good adhesiveness,
It has no adhesiveness to some plastics such as PVC, but it can be said to be a universal adhesive that bonds almost all things such as metal, glass, ceramics, stone, concrete, wood, and hard plastics. Because of its excellent properties, weather resistance, mechanical properties, and electrical properties, it is most suitable for bonding granules obtained from miscellaneous waste materials.

Finally, the molding step will be described. The compound to be molded obtained in the mixing step is molded in the following two types. One is poured into a mold, pressed by a press, molded, and then released to obtain a water-permeable molded material. Also in this case, since the mold is reused repeatedly, sufficient strength and durability against pressurization are required. In the other one, in order to use the frame as a reinforcing member of the obtained water-permeable molded material, the compound to be molded obtained in the mixing step is injected into a metal frame, pressed, molded and then molded. Instead of releasing, it is commercialized integrally with a frame such as grating.

In terms of the function and effect, the treatment is easy, there is no limitation on the scale, and it can be operated on any scale from the cottage handicraft industry to the large-scale industry, and the obtained molded product is obtained from waste material. Granules are bonded to each other by an adhesive at the contact points of the granules, and have relatively high strength, continuous pores inside, excellent water permeability, excellent air permeability, as shown below It is extremely useful as a means of effectively utilizing waste materials. Some of the products that can be manufactured include grating on sidewalks and roads, lids on pits, gates, veranda handrails, and various interior supplies.

FIG. 2 shows a grating made according to the invention. The grating is filled in a grid-shaped frame 10 partitioned by an integrated grid wall 11 formed by mixing an adhesive with granules of waste material granulated in an appropriate particle size range and then casting molten iron. And pressurizing, bonding the granules with an adhesive, and forming the molded article 20 having a large number of pores.
Are integrated with the frame body 10 without releasing, and 11 is a grid wall that divides the grid-shaped frame body 10 into a plurality of rows and a plurality of steps.

In general, the grating has slits or holes, and high heels may be formed, so that it may not fall or fall out. Since the bodies are connected to each other, have continuous pores inside, and have water permeability, it is not necessary to make many slits and holes, and if light rain or the like, it will pass. In addition, dust and sand do not fall into the grooves, and the grooves are kept clean. Therefore, the number of cleaning operations is reduced, which is useful for environmental beautification.

In general, since the water-permeable molded material according to the present invention has an action of filtering water, if it is provided at the outlet of a water-drainage ditch to a river or the sea, small dirt or sand is filtered and the river or the sea is filtered. Stain can be prevented. By taking advantage of its excellent air permeability, gates, veranda handrails, and various interior products can also be manufactured.

[0022]

EFFECT OF THE INVENTION Since the present invention is constituted as described above, the treatment is easy, there is no limitation on the scale, it can be operated at any scale, the strength is relatively high, and continuous pores are formed inside. It has excellent water permeability and air permeability, and can be used for, for example, block grating and the like, and is extremely useful as one means for effectively utilizing waste materials that have been difficult to treat.

When a relatively thin material is subjected to a large load, a metal frame integrated with a metal frame functions as a reinforcing member for a water-permeable molded material. It is effective and has a wide range of applications.

[Brief description of the drawings]

FIG. 1 is a block process diagram showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a product example according to the embodiment of the present invention.

[Description of Signs] 10 Frame 11 Grid wall 20 Water-permeable molded material

Claims (3)

[Claims] 1. A granulation step of obtaining granules of an appropriate particle size by either crushing waste material or dehydrating and solidifying, and bonding the granules of the waste material obtained in the granulation process The compounding agent is mixed, a mixing step of obtaining a compound to be molded, and the compound to be molded obtained in the compounding step are poured into a mold, pressurized,
A method for producing a water-permeable molded material using waste materials, comprising a molding step of molding, bonding, releasing, and obtaining a water-permeable molded material. 2. A granulation step of obtaining granules having an appropriate particle size by either crushing the waste material or dehydrating and solidifying the waste material, and bonding the granules of the waste material obtained in the granulation step to the granules. The compounding agent is mixed, a mixing step of obtaining a compound to be molded, and the compound to be molded obtained in the compounding step are injected into a frame, pressurized,
A waste material-utilized water-permeable molding material characterized by being molded, joined, not released, and integrally joined with the frame body, and utilizing the frame body as a reinforcing member of the obtained water-permeable molding material Manufacturing method. 3. The method for producing a water-permeable molded material using waste materials according to claim 1, wherein an adhesive mainly composed of an epoxy resin is used as the adhesive.