JP2000140816A - Treatment of scrap pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a treating method by which scrap pachinko machines can be effectively used. SOLUTION: In this treating method, scrap pachinko machines are crushed as they are, for example, they are roughly crushed into chips of about several cm size. After large wood pieces are removed from the roughly crushing treated material, it is subjected to secondary crushing to, for example, about several mm size. And after irons are removed from the secondary crushing treated material, it is subjected to tertiary crushing to, for example, 1 mm of less size. Next, a solidifying agent is added the tertiary crushing treated material, and they are mixed and agitated in the presence of water to obtain flowing treated material, and this flowing treated material is filled into a corrosion resistant vessel. After that, the flowing treated material in the vessel is dried and solidified and a filling port of the vessel is sealed to lay the vessel underground in a final disposal site.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating a waste pachinko machine.

[0002]

2. Description of the Related Art A waste pachinko machine is a mixed waste comprising synthetic resin material, wood and iron, and non-ferrous metals contained in a circuit board. Therefore, conventionally, in order to dispose of the waste pachinko machine, after removing specific parts such as the reusable surface glass sheet and the circuit board as necessary, this is crushed as it is or by a crusher into a large chip, It is common practice to dispose of the waste at an appropriate disposal site.

[0003]

However, as described above, most of the pachinko machines are made of materials that do not naturally decompose, and the life of the products is relatively short. The stand is disposed of. For this reason, the disposal site fills up in a short time. In addition, since harmful heavy metals are contained in the circuit board, it causes environmental pollution.

[0004] An object of the present invention is to provide a processing method that can effectively use a waste pachinko machine.

[0005]

The present invention has the following configuration to achieve the above object. That is, in the method of the present invention, first, the waste pachinko machine is crushed as it is and roughly crushed into chips of, for example, several cm. After removing large pieces of wood from the roughly crushed material, secondary crushing is performed, for example, to about several mm. Then, after irons are removed from the secondary crushed material, tertiary crushing is performed again, for example, to 1 mm or less. Next, a solidifying agent is added to the tertiary crushed product and mixed and stirred in the presence of water to obtain a fluidized product, and the fluidized product is filled in a corrosion-resistant container. Thereafter, the fluidized product in the container is dried and solidified, the filling port of the container is sealed, and the container is buried in the final disposal site. Iron removed before the secondary crushing may be re-introduced into the tertiary crushed product, and the solidifying agent may be added thereto. A variety of containers can be selected, but a container made of a synthetic resin and provided with uneven portions that can be fitted to each other on the surface is desirable.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. FIG. 1 is a block diagram showing the steps of the method of the present invention. First, remove the reusable front glass from the waste pachinko machine. Those that are damaged or have many scratches on the surface are left as they are. Also,
If the circuit board is to be reused, remove it. Such preparations are made as needed. If preparation is not required, the process directly enters the crushing process.

In the crushing treatment step, first, the waste pachinko machine is put into a rough crushing machine as it is without being separated for each material, and roughly crushed into chips of about several cm. Irons such as nails, woods such as machine frames, plastics and non-ferrous metals used for handles, circuit boards, etc. are mixed to form chips. Large pieces of wood are separated from the chip-shaped rough crushed material. This not only prevents weight reduction of the processed material filled in the container in the container filling step described later, but also reduces the capacity and increases the number of processed slingshots. Separated wood pieces are disposed of by incineration.

The roughly crushed material from which the wood pieces have been separated is subjected to a secondary crusher and recrushed to about 1 cm. The secondary crushed material is
Thereafter, irons are separated and removed using a magnet. This is so as not to hinder the crushing in the next step. The secondary crushed material from which irons have been removed is further processed by a tertiary crusher for about 1 hour.
Crushed to about mm.

[0009] A solidifying agent is added to the processed product after the crushing process, and the mixture is stirred and fluidized in the presence of moisture.
As the solidifying agent, portland cement or a mixture of portland cement and a water-soluble cellulose resin is used. When adding Portland cement alone, about 30 parts by weight of Portland cement is mixed with 100 parts by weight of the crushed material. Also,
When adding a water-soluble cellulose resin together, about 20 parts by weight of Portland cement and about 0.05 part by weight of a water-soluble cellulose resin are added to 100 parts by weight of the crushed product.

The water-soluble cellulosic resin is, for example, methyl cellulose, hydroxypropylmethyl cellulose, or hydroxyethyl obtained by treating cellulose with caustic soda and reacting with an etherifying agent such as propylene oxide or ethylene oxide. Methyl cellulose as a main component. Therefore, this solidifying agent
It is a nonionic water-soluble cellulose ether having a methoxyl group and a hydroxypropoxyl group, which are relatively lipophilic, and has relatively stable properties to acids and alkalis. The water-soluble cellulosic resin is immediately dissolved in the cement and dispersed in water to increase the viscosity. Then, the crushed material is cement-solidified by the surface tension due to the liquefaction bridge and the interparticle adhesion and bonding force resulting from the capillary phenomenon. When a water-soluble cellulosic resin is added, the components are strongly bonded to each other and are stably solidified so that they are hardly eluted with water, as compared with the case of simply solidifying with cement. The irons removed from the secondary crushed product before the tertiary crushing may be re-input to the crushed product.

The fluid obtained by mixing the tertiary crushed product with the additive and stirring is filled in a predetermined container. The container is formed of a synthetic resin material into, for example, a substantially regular hexahedron having a side of about 1 m, and an inlet is provided on one side. Further, a leg or a convex portion is formed on the bottom surface, and a concave portion capable of receiving the leg or the convex portion is formed on the upper surface. In filling the above-mentioned fluid, it is preferable to divide it into several times at a required time. In the case of a container having a side of about 1 m, 70 to 80 pachinko machines crushed and processed as described above could be filled. After filling, wait for the contents to dry and solidify, close and seal the inlet and landfill at the disposal site. If necessary, pile up using the front and rear, left and right, and the legs and recesses described above.

[0012]

As described above, according to the present invention, the crushed material of the waste pachinko machine is filled into the container and solidified and treated, so that the crushed material of the waste pachinko machine can be surely dispersed without being dispersed. Can be disposed of. Even if the crushed material contains heavy metals, it does not pollute the environment. Further, according to the present invention, since the waste pachinko machine is crushed into fine particles by tertiary crushing, it is possible to fill a single container with the processed material of a large number of waste pachinko machines, and to fill the crushed material. Since the used container itself can be used for landfill processing, etc., the pachinko machine can be economically processed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a processing method according to an embodiment of the present invention.

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) C04B 18/30 B09B 3/00 301Z

Claims (3)

[Claims] 1. A rough crushing step of crushing a waste pachinko machine as it is to form chips, a secondary crushing step of removing a large piece of wood from the rough crushed material and re-crushing it, Tertiary crushing step of re-crushing after removing the class, adding a solidifying agent to the tertiary crushed product, mixing and stirring in the presence of water to obtain a fluidized processed product, A step of filling in a corrosion-resistant container, a step of drying and solidifying a fluidized material in the container, a step of sealing a filling port of the container, and a step of burying the sealed container in a final disposal site. Waste pachinko machine treatment method. 2. The processing method according to claim 1, wherein the irons removed before the secondary crushing are added again to the tertiary crushed product, and a solidifying agent is added thereto. 3. The processing method according to claim 1, wherein the container is a container made of a synthetic resin, and is provided with concave and convex portions which can be fitted to each other on an outer surface.