KR102477706B1 - Construction aggregate manufacturing method using waste - Google Patents

Abstract

The present invention relates to a method for manufacturing aggregate for construction using waste, the composition of which is to mix various waste materials, cement, and water, but with respect to 100 kg of waste material, 15 to 25 kg of cement and 9 to 11 liters of water are added A mixing step (S10) of mixing; And, a solidification step (S20) of putting the mixture mixed in the mixing step (S10) into a mold having a predetermined shape and curing it to solidify it into a solidified product (S20); And, by cutting the solidified product A cutting step (S30) of manufacturing an aggregate substitute having a size of 50 to 200 mm and recycling it as an aggregate resource at the construction site; characterized in that it consists of,
After mixing waste materials such as aluminum slag or deoxidized dust with cement and water, pouring the mixture into a mold and solidifying it into a solidified product having a predetermined shape, the solidified product is used as an aggregate substitute with a size of 50 to 200 mm. By cutting it and recycling it as an aggregate resource at the construction site, it prevents the problem of wasting resources due to the conventional aluminum slag or deoxidation dust ash being buried in the ground, and at the same time, it has the effect of inducing economical production and supply of aggregate for construction there is.
Furthermore, by solidifying waste materials such as aluminum slag or deoxidized dust ash and recycling them as aggregate resources at the construction site, it is possible to block the problems of leachate and land pollution caused by landfilling of waste materials in advance, thereby protecting the natural environment. there is

Description

Construction aggregate manufacturing method using waste}

The present invention relates to a method for manufacturing aggregate for construction using waste, and more particularly, to mix waste materials such as aluminum slag or deoxidized dust ash with cement and water, pour the mixture into a mold, and solidify it into a predetermined shape. After being solidified into a product, the solidified product is cut into aggregate substitutes with a size of 50 to 200 mm to be recycled as an aggregate resource at the construction site, preventing the problem of wasting resources due to aluminum slag or deoxidized dust being buried in the ground in the past At the same time, it relates to a method for manufacturing aggregate for construction using waste that can induce economical production and supply of aggregate for construction.

In general, aluminum is a non-metallic material and is extracted by processing minerals containing aluminum several times. Usually, aluminum is extracted through an extraction process of about three times, and from the fourth time, the amount or quality of aluminum extraction through the mineral material of aluminum is increased. Considering this, it is inefficient, so the minerals that have gone through the extraction process three times are discarded as aluminum waste.

The aluminum waste as described above is formed in the form of fine powder, and the aluminum waste of this powder is called aluminum slag. It is used for re-extracting a small amount of aluminum. At this time, aluminum deoxidation dust (soot) is generated when the aluminum slag is dissolved.

The aluminum slag or deoxidation dust ash is usually disposed of by landfilling in the ground. A small amount of aluminum powder included in the aluminum slag or deoxidation dust ash may rub against each other to generate sparks, and when in contact with water (moisture) Due to the characteristics of being easily ignited due to heat and methane gas generated during oxidation, when the aluminum slag is buried in the ground, there is a problem in that fire frequently occurs due to contact with rainwater in the rainy season.

In addition, the aluminum slag or deoxidized dust ash is strongly alkaline (pH 10 to 13) and has problems such as disturbing the ecosystem and deteriorating plant vegetation due to alkalinization of the land to be buried.

Accordingly, the applicant of the present invention has developed and proposed a "pretreatment method for aluminum slag (Registration No. 10-1994808)" to solve the above problems, thereby inducing safe landfilling of the waste.

However, aluminum slag or deoxidation dust ash safely treated as described above can be disposed of by landfilling, but since these wastes are difficult to mix with soil, there is a disadvantage in eventually contaminating the soil, and at the same time safe aluminum slag or deoxidation dust ash There is a problem in that resources that can be recycled are wasted due to being buried in the ground without being recycled, so a method for recycling the aluminum slag or deoxidized dust is urgently needed.

The present invention has been proposed to solve the various problems described above, and its purpose is to mix waste materials such as aluminum slag or deoxidized dust ash with cement and water, and pour the mixture into a mold to have a predetermined shape. After being solidified into a solidified product, the solidified product is cut into aggregate substitutes with a size of 50 to 200 mm to be recycled as an aggregate resource at the construction site, so that aluminum slag or deoxidized dust is buried in the ground and waste of resources is eliminated. It is an object of the present invention to provide a method for manufacturing aggregate for construction using waste, which can induce economical production and supply of aggregate for construction while preventing it.

Furthermore, by solidifying waste materials such as aluminum slag or deoxidized dust ash and recycling them as aggregate resources at the construction site, it is possible to block the problems of leachate and land pollution caused by landfilling of waste materials in advance, thereby protecting the natural environment. It is to provide a method for manufacturing aggregate for construction using.

In order to achieve the above object, the method for manufacturing aggregate for construction using waste according to the present invention mixes various waste materials, cement, and water, but for 100 kg of waste material, 15 to 25 kg of cement and 9 to 11 l of water A mixing step (S10) of adding and mixing; And, a solidification step (S20) of putting the mixture mixed in the mixing step (S10) into a mold having a predetermined shape and curing it to solidify it into a solidified product; and, the solidified product A cutting step (S30) of cutting to make an aggregate substitute with a size of 50 to 200 mm to be recycled as an aggregate resource at the construction site;
The mold has a mold inside which a plurality of molding grooves are formed in which the mixture stirred and mixed in the mixing step (S10) is filled and cured, and both ends of the mold are coupled to fix the mold, and the mold rotates. A fixing frame capable of being fixed, a binding groove formed long in the longitudinal direction of the molding die at both ends of the upper portion of the molding die, and sliding inward into the binding groove to be bound to the binding groove and bound to the upper portion of the molding die. It is laminated and closely adhered to, but inside, a blade formed sharply toward the molding die is formed in a lattice shape to cut the mixture discharged from the molding groove of the molding die, and a cutting piece extending vertically from the blade of the cutting piece to form the A plurality of guides for vertically guiding the mixture to be cut through the blade to prevent the plurality of falling mixtures from colliding with each other, and a plurality of guides located at the bottom of the mold to pass through the cutting piece to receive the plurality of mixtures that are cut and fall. It is characterized in that it is configured to include a supporting plate to be placed.

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As described above, according to the method for manufacturing aggregate for construction using waste according to the present invention, waste materials such as aluminum slag or deoxidized dust ash are mixed with cement and water, and the mixture is poured into a mold to solidify into a predetermined shape. After being solidified into a product, the solidified product is cut into aggregate substitutes with a size of 50 to 200 mm to be recycled as an aggregate resource at the construction site, preventing the problem of wasting resources due to aluminum slag or deoxidized dust being buried in the ground in the past At the same time, there is an effect of inducing economical production and supply of aggregate for construction.

Furthermore, by solidifying waste materials such as aluminum slag or deoxidized dust ash and recycling them as aggregate resources at the construction site, it is possible to block the problems of leachate and land pollution caused by landfilling of waste materials in advance, thereby protecting the natural environment. there is

1 is a block diagram of a method for manufacturing aggregate for construction using waste according to an embodiment of the present invention
Figure 2 is a view for explaining a method for manufacturing aggregate for construction using the waste shown in Figure 1
Figure 3 is a view showing a mold used in the method of manufacturing aggregate for construction using the waste shown in Figure 1
Figure 4 is a state diagram of the use of the mold used in the method of manufacturing aggregate for construction using the waste shown in Figure 3

A method for manufacturing aggregate for construction using waste according to a preferred embodiment of the present invention will be described in detail based on the accompanying drawings. Detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 to 4 show a method for manufacturing aggregate for construction using waste according to an embodiment of the present invention, and FIG. 1 is a block diagram of a method for manufacturing aggregate for construction using waste according to an embodiment of the present invention. 2 is a view for explaining a method for manufacturing aggregate for construction using waste shown in FIG. 1, FIG. 3 is a view showing a mold used in the method for manufacturing aggregate for construction using waste shown in FIG. 1, FIG. Shows the use state diagram of the formwork used in the construction aggregate manufacturing method using the waste shown in FIG. 3, respectively.

As shown in the drawing, the method 100 for manufacturing aggregate for construction using waste according to an embodiment of the present invention includes a mixing step (S10), a solidifying step (S20), and a cutting step (S30) .

As shown in FIG. 1, the mixing step (S10) mixes various waste materials, cement, and water, but stirs and mixes by adding 15 to 25 kg of cement and 9 to 11 L of water to 100 kg of waste material. do.

That is, in the mixing step (S10), in order to make the discarded waste into a material having excellent strength such as aggregate so that it can be recycled as an aggregate resource at the construction site, the waste material, cement and water are put into a container and stirred and mixed. It is a process.

Here, if less than 15 kg of the cement is added to 100 kg of the waste material, it is difficult to secure a stable strength sufficient for a solidified product cured through cement curing to be used as an aggregate. When added, the strength of the solidified product can be improved, but as the capacity of expensive cement increases, the input amount of waste is relatively reduced, making it difficult to expect smooth (economical) recycling of waste. Cement is preferably added in an amount of 15 to 25 kg.

In addition, when the water is added in less than 9 L with respect to 100 kg of the waste material, the mixture is too stiff and it is difficult to smoothly stir, and the mixture in which the water is added in an amount of 11 L or more is too muddy, so in the solidification step (S20) Since smooth curing is difficult, it is preferable to add 9 to 11 liters of water per 100 kg of waste material as described above.

As shown in FIG. 1, in the solidifying step (S20), the mixture mixed in the mixing step (S10) is put into a mold 200 having a predetermined shape and cured to be solidified into a solidified product 10.

That is, as shown in FIG. 2A, the solidifying step (S20) is a process in which the evenly stirred mixture is introduced into the mold 200 and cured for a predetermined time (approximately 4 to 5 days) to solidify.

Here, a plurality of molding grooves 211 having a predetermined shape are provided inside the mold 200, and the mixture is put into the molding grooves 211 and cured. At this time, the size of the molding grooves 211 is too small. If it is, the size of the molding groove 211 is formed to be large because it may take a lot of time and difficulties to inject the mixture.

Therefore, the solidified product 10 produced in the solidification step (S20) requires a process of cutting into an appropriate size that can be used as an aggregate in the cutting step (S30) to be described later.

As shown in FIG. 1, the cutting step (S30) is a process of cutting the solidified product 10 to produce an aggregate substitute 20 having a size of 50 to 200 mm and recycling it as an aggregate resource at a construction site.

That is, as shown in FIG. 2B, since the solidified product 10 recovered from the mold 200 has a rather large size (size), it can be effectively recycled as an aggregate resource by cutting it into an appropriate size that can be used as an aggregate. To be manufactured as an aggregate substitute (20).

Therefore, by recycling waste materials disposed of in landfills as aggregates for construction, it is possible to prevent environmental pollution caused by landfilling of waste materials, and at the same time, to induce economical production and supply of aggregates.

In addition, the waste material may be used in combination with any one or two of aluminum slag or aluminum deoxidation dust in the form of a fine powder.

Here, aluminum slag or deoxidation dust (soot) is the final waste after aluminum is extracted from minerals containing aluminum. The aluminum slag or deoxidized dust material used in the used construction aggregate manufacturing method 100 is oxidized and stabilized aluminum slag or deoxidized dust material.

The oxidation treatment method of the aluminum slag or deoxidation dust ash may be performed through the "pre-treatment method of aluminum slag (Registration No. 10-1994808)" previously developed by the present applicant.

In addition, it goes without saying that general general waste as well as aluminum slag or deoxidation dust in the form of fine powder can be selected and used as the waste material.

On the other hand, as shown in FIG. 3, the mold 200 includes a molding mold 210 in which a plurality of molding grooves 211 are formed in which the mixture stirred and mixed in the mixing step (S10) is filled and cured. Both ends of the mold 210 are coupled to fix the mold 210, and the fixing frame 220 rotatably fixes the mold 210, and both ends of the upper portion of the mold 210. A binding groove 230 formed elongated in the longitudinal direction of the mold 210 and sliding into the binding groove 230 to be bound to the binding groove 230 and stacked on top of the mold 210 The cutting piece 240 for cutting the mixture discharged from the mold groove 211 of the mold 210 by being in close contact with each other, but inside, the blade 241 formed sharply towards the mold 210 is formed in a lattice shape And, a plurality of guides extending vertically from the blade 241 of the cutting piece 240 and vertically guiding the mixture to be cut through the blade 241 so that the falling mixture does not collide with each other ( 250), and a support plate 260 positioned below the mold 210 to receive and place a plurality of mixtures cut and dropped through the cutting piece 240.

That is, as shown in FIG. 4A, in the solidifying step (S20), the mixture mixed in the mixing step (S10) is filled (injected) into the molding groove 211 formed inside the mold 210 to form the mixture. It is performed while curing. At this time, the cutting piece 240 is separated and recovered from the top of the mold 210 so that the mixture is easily introduced into the mold 210.

Then, before the mixture filled in the mold 210 is completely cured, the cutting piece 240 is slid into the binding groove 230 so that the cutting piece 240 is formed of the mold 210. to be stacked on top.

Here, the reason for not completely curing the mixture is to induce the mixture cured in the mold 210 to be easily cut through the cutting piece 240 in the process of discharging and separating through the process to be described later, It is good to cure the mixture for about 1 to 2 days.

Then, as shown in FIG. 4B, the mold 210 is turned over with respect to the fixing frame 220, and the mixture cured in the mold 210 is dropped. At this time, the falling mixture is the cutting piece ( 240) while passing through the blade 241 to be cut to a size suitable for use as an aggregate, so that the cutting step (S30) is performed together in the process of curing the mixture.

At this time, the plurality of mixtures cut through the blade 241 of the cutting piece 240 fall vertically under the guidance of the guide 250 formed on the blade 241, preventing collision with other mixtures and stably. fall down to

Thereafter, the mixture of a suitable size falling through the cutting piece 240 is dropped and placed on the support plate 260 and then cured for a predetermined time so as to be manufactured into an aggregate substitute 20 having excellent strength.

That is, the mixture in a slightly brittle state before being completely cured (solidified) through the mold 200 is cut into a size suitable for use as an aggregate through the cutting piece 240, so that the completely cured solidified product (10) It is possible to prevent or drastically reduce scattering dust and a large amount of manpower and time that may occur in the process of cutting, leading to efficient mass production of products.

In the construction aggregate manufacturing method 100 using waste of the present invention, which is composed of the above process, waste materials such as aluminum slag or deoxidized dust ash are mixed with cement and water, and the mixture is poured into the mold 200 to form a predetermined After solidifying into a solidified product 10 having a shape of, the solidified product 10 is cut into an aggregate substitute 20 having a size of 50 to 200 mm to be recycled as an aggregate resource at a construction site, so that aluminum slag or There is an effect of preventing the problem of waste of resources due to the deoxidation dust being buried in the ground, and at the same time inducing economical production and supply of construction aggregate.

Furthermore, by solidifying waste materials such as aluminum slag or deoxidized dust ash and recycling them as aggregate resources at the construction site, it is possible to block the problems of leachate and land pollution caused by landfilling of waste materials in advance, thereby protecting the natural environment. there is

In the construction aggregate manufacturing method 100 using waste according to an embodiment of the present invention having the configuration described above, an aggregate substitute is manufactured and recycled as an aggregate resource.

First, 1000 kg of powdered aluminum slag, 200 kg of cement, and 100 L of water were put into a stirrer (not shown), respectively, and then stirred and mixed. (S10)

Then, as shown in FIG. 2A, the mixture is filled into a mold 200 having a plurality of forming grooves 211 therein, cured for a certain period of time, and solidified into a solidified product. (S20)

Then, as shown in FIG. 2C, after separating and recovering the cured solidified product 10 from the mold 200, it is cut into an appropriate size that can be easily recycled as an aggregate resource at the construction site to obtain an aggregate substitute 20 production is completed with (S30)

The aggregate substitute 20 manufactured and produced as described above is recycled as an aggregate resource at a construction site.

The present invention has been described with reference to the embodiments shown in the accompanying drawings, but these are illustrative and not limited to the above-described embodiments, and those skilled in the art can make various modifications and equivalent embodiments therefrom. you will understand the point. In addition, of course, modifications by those skilled in the art are possible within a range that does not impair the spirit of the present invention. Therefore, the scope claimed in the present invention will not be determined within the scope of the detailed description, but will be limited by the claims described later and their technical spirit.

S10. mixing stage
S20. solidification step
S30. cutting step
10. Solidification products 20. Aggregate substitutes
100. Method for manufacturing aggregate for construction using waste
210. Forming mold 211. Forming groove
220. Fixed frame 230. Binding groove
240. Cutting piece 241. Blade
250. guide part 260. support plate
200. mold

Claims (3)

A mixing step (S10) of mixing various waste materials with cement and water by adding 15 to 25 kg of cement and 9 to 11 liters of water to 100 kg of waste material;
A solidification step (S20) of solidifying the mixture mixed in the mixing step (S10) into a mold 200 having a predetermined shape and curing it into a solidified product 10; and
A cutting step (S30) of cutting the solidified product 10 to produce an aggregate substitute 20 having a size of 50 to 200 mm and recycling it as an aggregate resource at a construction site;
The mold 200 is coupled with a molding mold 210 in which a plurality of molding grooves 211 are formed in which the mixture stirred and mixed in the mixing step (S10) is filled and cured, and both ends of the mold 210 are combined A fixing frame 220 for fixing the mold 210 and rotatably fixing the mold 210, and at both ends of the upper portion of the mold 210 in the longitudinal direction of the mold 210. A binding groove 230 formed long and slides inward into the binding groove 230 and is bound to the binding groove 230 so as to be stacked and closely adhered to the upper part of the mold 210, but inside the mold ( 210), the blade part 241 formed sharply toward the side is formed in a lattice shape to cut the mixture discharged from the molding groove 211 of the mold 210, and the cutting piece 240 A plurality of guide parts 250 extending vertically from the blade part 241 and vertically guiding the mixture to be cut through the blade part 241 so that the falling mixtures do not collide with each other; and the mold 210 ) A method for manufacturing aggregate for construction using waste, characterized in that it comprises a support plate 260 positioned at the bottom of the cutting piece 240 to receive and place a plurality of mixtures cut and dropped through the cutting piece 240. delete delete

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