KR101642385B1 - Method for manufacturing eco-friendly non-toxic water permeable block - Google Patents

Abstract

The present invention relates to a method for manufacturing an eco-friendly non-toxic water permeable block, allowing easy manufacture of the eco-friendly non-toxic water permeable block which is excellent in water permeability, lacks decoloration or discoloration so that semi-permanent use is possible, thereby reducing repairing costs, contributes to underground water depletion prevention and tree growth stimulation, lacks a pollution problem due to cement usage, and has an air purification function. The present invention as described above includes the steps of: manufacturing color aggregate by coloring aggregate, prepared by pulverizing natural stone, with pigment; mixing and agitating the color aggregate, two-component polyurethane resin, and a hardening accelerator; inserting the agitated admixture of the color aggregate, the two-component polyurethane resin, and the hardening accelerator into a molding press to compression-mold the admixture into a water permeable block; form-removing the water permeable block molded at the molding press from the molding press; and curing the water permeable block removed from the molding press.

Description

[0001] METHOD FOR MANUFACTURING ECO-FRIENDLY NON-TOXIC WATER PERMEABLE BLOCK [0002]

The present invention relates to a water-permeable block, and particularly relates to a water-permeable block, which is excellent in permeability and can be used semi-permanently since it is free from discoloration or discoloration and can reduce maintenance costs. To a method of manufacturing an environmentally friendly non-toxic pitcher block having no pollution problem and air purifying function.

In general, parks and roads are equipped with various types of guards for people to walk safely. Such guidance is made in various forms for pedestrians to walk more comfortably and safely, for example, by directly pouring cement, asphalt, urethane or the like on the ground to form a sidewalk, or by using concrete or synthetic resin Shaped walkway blocks are formed and the walkway blocks are flatly installed on the ground on which the walkway is to be formed.

However, when the cement concrete, asphalt, urethane, etc. are laid directly on the ground to form the guide, the surface is formed integrally and structurally stable, but its shape and color are monotonous, Not only does it degrade, but also water can not be pumped at all, resulting in a large amount of sewage.

Therefore, in recent years, most of India is manufactured to have various patterns and colors, and at the same time, the production using the pavement blocks is gradually increasing to secure permeability. However, this also causes a problem that the pigment added to display the color in the sidewalk block is visually inferior due to the rapid bleaching phenomenon of the color due to sunlight or friction.

The larger problem is that most of the sidewalk blocks use cement concrete products, clay products, and waste tires. These products use pigments produced by chemical methods in the upper layer and do not undergo a sufficient curing process. And is causing pollution of river and river water quality by discharge.

In addition, the rubber chip block made of an elastic material using waste tires can not secure the strength. Therefore, when the time elapses, overflow phenomenon occurs in the upper layer, and the function as a block is lowered and the replacement life is short. .

In addition, products utilizing eco-friendly resin are not produced directly by using a molding machine, and a lot of molds must be used for a long period of curing, and a mold is cured for at least 2 to 24 hours in a mold. Therefore, it is difficult to apply to the actual field because the production process is large and the production cost is excessive.

Korean Patent Registration No. 0497567 (Jun. 17, 2005)

Accordingly, the present invention has been made in order to solve the problems of the related art as described above, and an object of the present invention is to provide a method of manufacturing a water- The present invention also provides a method for manufacturing an environmentally friendly non-toxic pitcher block which is free from the problem of contamination due to the use of cement and has an air purification function while contributing to prevention of depletion and promoting the growth of trees.

According to an aspect of the present invention, there is provided a method for manufacturing a waterproof block, comprising the steps of: preparing a colored aggregate by coloring a pigment on an aggregate obtained by crushing natural stone; Mixing and agitating the color aggregate, the two-component polyurethane resin, and the curing accelerator; Injecting a mixture of the agitated color aggregate, the polyurethane resin and the curing accelerator into a molding machine and press-molding the mixture into a water permeable block; Demolding the permeable block formed in the molding machine in a molding machine; And curing the permeable block demolded in the molding machine.

Here, 70 to 95% by weight of the colored aggregate, 4 to 30% by weight of the polyurethane resin, and 0.001 to 3% by weight of the curing accelerator may be mixed.

The method may further include injecting a water-soluble mold release agent into the molding machine before the mixture of the color aggregate, the polyurethane resin, and the curing accelerator is charged into the molding machine so as to facilitate demoulding the water-permeable block from the molding machine.

The step of preparing the colored aggregate may include the steps of: pulverizing the aggregate made of natural stone to an average particle size of 0.5 to 50 mm; Separating the pulverized aggregate by particle size; Mixing and agitating the aggregate separated by the particle size with the pigment; Heating the agitated aggregate and the pigment to color the aggregate; Mixing and aging the colored aggregate with an epoxy resin, a UV stabilizer, and a curing accelerator to form a surface coating; Heat-impregnating an aggregate surface-coated with an epoxy resin, a UV stabilizer and a curing accelerator; And cooling and drying the heat-impregnated aggregate.

The step of preparing the colored aggregate may further include the step of applying 20 to 100 L / m ² of the photocatalyst to the cooled and dried aggregate.

Further, in order to increase the coloring efficiency of the pigment with respect to the aggregate, the aggregate is washed before mixing the aggregate and the pigment, and the surface of the aggregate is subjected to plasma treatment.

Also, the material of the aggregate may be at least one selected from the group consisting of basalt, granite, dolomite, silica sand, zircon, and germanium.

The composition may be mixed at a ratio of 50 to 90% by weight of the aggregate, 1 to 10% by weight of a pigment, 1 to 30% of an epoxy resin, 0.1 to 5% of a UV stabilizer and 0.1 to 5% by weight of a curing accelerator.

In addition, in the step of injecting the aggregate surface-coated with the epoxy resin, the UV stabilizer and the curing accelerator into the furnace and then heating and impregnating the furnace, the mixture is firstly heated at a temperature of 300 to 780 캜, And heating the mixture.

Also, before the crushed aggregate is separated by particle size, the operation of removing foreign matter from the crushed aggregate proceeds. In the operation of removing the foreign matter, the crushed aggregate is vibrated by the diaphragm, while the wind pressure is applied on one side And the other side sucks and removes the foreign matter blown by the wind pressure, and on the upper side, the metallic foreign matter is sucked and removed by the electromagnet.

The method of manufacturing an environmentally friendly non-toxic permeable block according to the present invention is excellent in water permeability and can be used semi-permanently since it has no discoloration or discoloration, thus it can reduce maintenance cost and can be used semi-permanently without discoloration or discoloration, And can contribute to prevention of depletion of groundwater and promoting the growth of trees, and it is possible to smoothly produce an environmentally friendly non-toxic permeable block having no pollution due to the use of cement and air purifying function.

1 is a conceptual diagram of a method for manufacturing an environmentally friendly non-toxic permeable block according to an embodiment of the present invention
2 is a flowchart for explaining a method of manufacturing a water-permeable block according to an embodiment of the present invention.
FIG. 3 is a flow chart for explaining the steps of manufacturing a color aggregate in the method of manufacturing a water permeable block according to an embodiment of the present invention.
4 is a block diagram of a permeable block manufacturing apparatus for implementing a method for manufacturing a permeable block according to an embodiment of the present invention
FIG. 5 is a layout diagram showing the arrangement state of a permeable block manufacturing apparatus for implementing a method of manufacturing a permeable block according to an embodiment of the present invention. FIG.
6 is a front view for explaining a structure of a foreign matter remover in a permeable block manufacturing apparatus for implementing a method of manufacturing a permeable block according to an embodiment of the present invention
7 and 8 are photographs showing permeability of an environmentally friendly non-toxic water-permeable block manufactured by the method of manufacturing a water-permeable block according to an embodiment of the present invention
9 to 11 are photographs of an environmentally friendly non-toxic water-permeable block manufactured by the method of manufacturing a water-permeable block according to an embodiment of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method of manufacturing an environmentally friendly non-toxic permeable block according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention, and are actually shown in a smaller scale than the actual dimensions in order to understand the schematic structure.

Also, the terms first and second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1 is a conceptual diagram of a method for manufacturing an environmentally friendly non-toxic water-pervious block according to an embodiment of the present invention.

As shown in the drawings, the method of manufacturing an environmentally friendly non-toxic permeable block according to an embodiment of the present invention includes the steps of using environmentally friendly aggregates having a semi-permanent lifetime, plasma treatment using no binder to increase the coloring effect of the pigments, The environmentally friendly color aggregate is manufactured in a unique way by applying the photocatalyst which removes NO _x from the gas and purifies the air. The green colored aggregate thus produced is cemented to cause various pollution problems. By using a two-component polyurethane resin and a curing accelerator, which are eco-friendly materials, they can be press-formed into a water-permeable block, thereby being excellent in water permeability and can be used semi-permanently without discoloration or discoloration, While contributing to preventing depletion and promoting the growth of trees, air purifiers The pitcher has a non-toxic environmentally friendly block would have to be prepared to make.

Hereinafter, a method for manufacturing an environmentally friendly non-toxic permeable block according to an embodiment of the present invention will be described in detail.

FIG. 2 is a flow chart for explaining a method of manufacturing a water permeable block according to an embodiment of the present invention, FIG. 3 is a flowchart for explaining a step of manufacturing a colored aggregate in the method of manufacturing a water permeable block according to an embodiment of the present invention, FIG. 5 is a view showing the arrangement state of a permeable block manufacturing apparatus for implementing a method of manufacturing a permeable block according to an embodiment of the present invention. FIG. 6 is a front view for explaining a structure of a foreign matter remover in a permeable block manufacturing apparatus for implementing a method of manufacturing a permeable block according to an embodiment of the present invention.

As shown in FIG. 2, the method of providing a color aggregate according to an embodiment of the present invention includes the steps of producing a color aggregate S11, a color aggregate and a polyurethane resin mixing and stirring step S12, a release agent injection step S13, Step S14, demolding step S15, and curing step S16.

In the color aggregate production step (S11), the pigment is colored on the aggregate material obtained by crushing the natural stone to produce the environmentally-friendly colored aggregate. In the case of the color aggregate manufactured at this stage, the semi-permanent natural stones are produced by the mother body with almost no discoloration or discoloration and beautiful colors, but there is no contamination due to whitening phenomenon or hydration reaction of the cement product, The first crusher 110a and the second crusher 110b, the foreign material removing unit 120, the particle size separator 140, the plasma processing unit 140, The first stirrer 150a and the second stirrer 150b, the coloring furnace 160a, the heating furnace 160b, the cooler dryer 170, and the photocatalyst applying device 180, as shown in FIG. The color aggregate production step will be described later in detail.

In the step of mixing the color aggregate and the polyurethane resin (S12), the color aggregate prepared in the previous step, the two-pack type polyurethane resin and the curing accelerator are mixed and stirred in the third stirrer 210. [ In this case, 70 to 95% by weight of the colored aggregate, 4 to 30% by weight of the polyurethane resin, and 0.001 to 3% by weight of the curing accelerator are mixed. Here, the polyurethane resin mixed with the color aggregate completely replaces the cement, thereby binding the colored aggregate to a high strength. The curing accelerator promotes curing of the polyurethane resin, thereby shortening the curing time.

In the step of injecting the releasing agent S12, a water-soluble mold release agent is injected into the press molding machine 220 before the mixture of the agglomerated aggregate, the polyurethane resin and the curing accelerator is injected into the press molding machine 220. Here, the water-soluble mold release agent is intensively injected into the upper mold and the lower mold of the press molding machine 220. This process facilitates demoulding of the water permeable block formed from the press molding machine 220 by preventing adhesion of the polyurethane resin and the color aggregate to the press molding machine 220, which helps to reduce the entire process time.

In the press molding step S14, the mixture of the agitated color aggregate, the polyurethane resin and the curing accelerator is put into a press molding machine 220, and then pressurized to form a water permeable block.

In the de-molding step S15, the water-permeable block formed in the press-molding machine 220 is demolded from the press-molding machine 220. [ This demoulding of the permeable block is facilitated without the problem of adhesion of the polyurethane resin or the color aggregate due to the water-based mold release agent sprayed in the previous step.

In the curing step S16, the water permeable block demagnetized in the press-forming machine 220 is cured while gradually passing the biogas 230 installed along the conveyor, which is the transfer device 190, or storing it for a sufficient time. The permeable block thus cured is measured and packaged through the packing machine 240. Here, the plurality of cooling fans may be provided so that the cooling fan can be selectively used for controlling the curing time.

As a result, it is possible to use the semi-permanent use because it is excellent in permeability and does not discolor or discolor, and it is possible to reduce the maintenance cost, contribute to prevention of groundwater depletion and growth of trees, It is possible to obtain an environmentally friendly non-toxic pitcher block.

Hereinafter, the color aggregate production step (S11) will be described in more detail.

As shown in FIG. 3, the aggregate aggregate manufacturing step S11 includes the steps of crushing the aggregate (S101), removing the foreign matter (S102), separating granularity (S103), cleaning (S104), plasma processing (S105), a pigment mixing and stirring step (S106), a heating coloring step (S107), a protective agent mixing and stirring step (S108), a protective agent heating impregnation step (S109), a cooling drying step (S110) and a photocatalyst applying step .

In the aggregate crushing step (S101), aggregate composed of at least one of natural stone selected from basalt, granite, dolomite, silica sand, zircon and germanium is crushed to an average particle size of 0.5 to 50 mm. For this purpose, it is possible to crush one crusher until the required aggregate size is reached, but if the environment permits, the first crusher 110a and the second crusher 110b may be connected in series It is preferable that the aggregate is pulverized stepwise in terms of pulverization quality.

In the step of removing foreign matters (S102), unnecessary fine powders and various foreign substances contained together with the crushed aggregate are removed. 5 and 6, the foreign matter remover 120 vibrates and agitates the aggregate S crushed by the diaphragm 121, while the blower 123 applies the air pressure to the air in one side, The electromagnet 125 sucks and removes the metallic foreign matter E2 from the upper side by sucking and removing the foreign matter E1 which is blown by the wind pressure. Such a foreign matter removal process is carried out by adjusting the time depending on the amount of the aggregate (S) to be crushed. It is possible to prevent the aggregate S from being separated from the diaphragm 121 by installing a fence 121a made of a mesh net around the upper surface of the diaphragm 121, Thereby permitting the magnetic force by the magnet 125.

In the particle size separation step (S103), the crushed aggregate is separated by particle size. For this purpose, the separator 130 has a plurality of meshes or pores having different sizes of pores, and separates the pulverized aggregate by the particle size.

In the cleaning step (S104), high-pressure steam or washing water is sprayed to clean the aggregate separated by the particle size. As a result, fine powder remaining on the surface of the aggregate can be removed without being removed in the preceding foreign material removing step (S102). This process is followed in order to increase the efficiency of the plasma processing operation to be carried out later.

In the plasma treatment step (S105), the surface of the washed aggregate is subjected to plasma treatment before mixing the aggregate and the pigment to increase the coloring efficiency of the pigment on the aggregate. For this, the atmospheric pressure plasma processing apparatus 140 can be simply installed on the line without being carried out in a vacuum apparatus or a very large mechanical apparatus having a large size. At this time, the flow rate of nitrogen and oxygen gas is controlled to about 60: 1 to generate plasma at a room temperature of 3 kw, and the conveying speed of the aggregate is about 1 to 2 m per minute while the plasma treatment time is 1 to 5 minutes . By such plasma treatment, an etching phenomenon appears at the surface of the aggregate initially smooth and coarse micro-craters are formed to increase the root mean square (RMS) roughness value. As a result, conditions for easily bonding the pigment components to the surface of the aggregate are established. If the aggregate and pigment are mixed and agitated without performing the above-described plasma treatment step (S105) and the operation of heating and coloring is performed immediately, the amount of the pigment should be increased and the time required for mixing and stirring and heating and coloring must be greatly increased There is a difficulty. However, through such plasma treatment, the amount of pigment and the time required for coloring can be greatly reduced, and the coloring quality is also improved overall.

In the pigment mixing and stirring step (S106), the plasma-treated aggregate and pigment are mixed and sufficiently stirred by a dedicated first agitator (150a). Whereby the pigment is uniformly dispersed and applied to the aggregate surface in a sufficient amount.

In the heating and coloring step S107, the aggregate and the pigment stirred in the first stirrer 150a are heated in the coloring furnace 160a to stably color the pigment on the aggregate. In this case, the heating temperature is suitably from 200 ° C to 1000 ° C.

In the protective agent mixing and stirring step (S108), an epoxy resin, a UV stabilizer, and a curing accelerator are mixed and agitated to the surface of the colored aggregate. The use of the epoxy resin, UV stabilizer and curing accelerator is to protect the aggregated pigment from flying off and to make it glossy, where they are applied stepwise, not together with the pigment in the coloring step . Thus, when coloring the pigment, the coloring operation can be carried out by setting the heating temperature more freely without limiting the heating due to the epoxy resin, and since the surface is wrapped and protected after the coloring of the pigment is completely completed, But also in terms of protecting the surface of the colored aggregate. The mixture is mixed in a ratio of 50 to 90% by weight of the aggregate, 1 to 10% by weight of pigment, 1 to 30% of an epoxy resin, 0.1 to 5% of a UV stabilizer and 0.1 to 5% by weight of a curing accelerator.

In the protective agent heating impregnation step (S109), an aggregate on which an epoxy resin, a UV stabilizer, and a curing accelerator are coated is put into a heating furnace 160b to be impregnated. At this time, the mixture is firstly heated to a temperature of 300 to 780 ° C, and then is secondarily heated to a temperature of 300 to 780 ° C.

In the cooling and drying step (S110), the aggregate material impregnated with the protective agent is cooled and dried in the heating furnace (160b). 5, the aggregate heated in the heating furnace 160b is passed through a cooling dryer 170 installed along a conveyor, which is a conveying device 190, as shown in FIG. The cooling and drying machine 170 includes a box-shaped main body 171 for providing a passage through which the conveyor for conveying the aggregate can pass, and a plurality of blowing fans 172 disposed along the conveyor in the box- Thereby effectively cooling and drying the aggregate.

In the photocatalyst applying step S111, the photocatalyst is applied to the cooled dried aggregate in an amount of 20 to 100 L per m ² by using a photocatalyst coating device 180 containing a high-pressure sprayer. As the photocatalyst, titanium oxide (TiO ₂ ) is taken into consideration, but in order to increase the efficiency in visible light, a composite of titanium oxide and tin oxide to which a metal ion is added or a composite of a titanium oxide and a metal tungsten oxide bonding structure . For reference, the production of the colored aggregate is completed by passing through the photocatalyst applying device 180.

This is a photocatalytic coating step (S111) is completed, a nitrogen oxide according to the vehicle exhaust in permeability block using a color aggregate decontaminate (NO _X) and give the ability to purify the air.

7 and FIG. 11 illustrate an eco-friendly non-toxic permeable block photograph actually manufactured by the method of manufacturing a permeable block according to an embodiment of the present invention, It shows permeability.

Hereinafter, the results of testing the flexural strength using the specimen of the environment-friendly non-toxic permeable block actually manufactured by the method of manufacturing the permeable block according to the embodiment of the present invention will be described below.

<Bending strength test result>

First, specimens of cement concrete blocks and environmentally friendly non-toxic blocks were prepared for the bending strength test as follows

division Cement concrete block (g) Environment friendly non-toxic permeable block (g) aggregate 240 200 cement 70 none Pigment / color aggregate 7 40 Water / cure accelerator 19.5 0.05 Polyurethane resin none 12

The test specimen has a crosshead speed (1 mm / min), bending strength (Pa) = maximum strength (N) /0.001274 m ² , and a specimen area of 0.001274 m ² .

As a result, the following results were obtained as the curing time elapsed.

- After 3 days measurement result -

Specimen Number (KN) (MPa) Cement concrete blocks Eco-friendly non-toxic pitcher block Cement concrete blocks Eco-friendly non-toxic pitcher block NO. 01 1.84629 5.16907 14.49 40.57 NO. 02 4.17866 5.28399 32.79 41.47 NO. 03 3.25775 5.42588 25.57 42.58 NO. 04 1.98458 5.61233 15.57 44.05 NO. 05 1.88955 4.90845 14.83 38.52 NO. 06 2.56449 5.86375 20.12 46.02 NO. 07 1.75586 5.60123 13.78 43.96 NO. 08 1.82433 5.18272 14.31 40.68 NO. 09 2.01254 5.53333 15.79 43.43 NO. 10 1.97333 6.18256 15.48 48.52

- Measurement results after 7 days -

Specimen Number
(KN) (MPa) Cement concrete blocks Eco-friendly non-toxic pitcher block Cement concrete blocks Eco-friendly non-toxic pitcher block NO. 01 7.5956 6.60594 59.62 51.85 NO. 02 3.94319 6.46084 30.95 50.71 NO. 03 3.4142 5.56914 26.79 43.71 NO. 04 5.22351 6.24589 41 49.02 NO. 05 3.68493 6.87951 28.92 53.99 NO. 06 4.25333 5.68974 33.38 44.66 NO. 07 3.85431 5.98253 30.25 46.95 NO. 08 3.53333 5.60553 27.73 57.84 NO. 09 5.0152 6.12547 39.36 48.08 NO. 10 4.12522 5.89315 32.38 46.25

- Measurement results after 28 days -

Specimen Number (KN) (MPa) Cement concrete blocks Eco-friendly non-toxic pitcher block Cement concrete blocks Eco-friendly non-toxic pitcher block NO. 01 6.89646 6.42369 54.13 50.45 NO. 02 4.46593 6.11668 35.05 48.01 NO. 03 5.60593 6.25455 44 49.09 NO. 04 6.20553 6.25478 48.7 49.10 NO. 05 5.13244 5.57852 40.28 43.79 NO. 06 4.57486 6.56983 38.26 51.57 NO. 07 4.6243 6.85333 36.29 53.79 NO. 08 4.33333 6.25783 34.01 49.12 NO. 09 5.12333 6.95646 40.21 54.60 NO. 10 4.15248 6.55893 32.59 51.48

The measurement results shown in the above Tables 2 to 4 show that the environmentally friendly non-toxic permeable block manufactured according to the embodiment of the present invention was cured quickly in a shorter time than the cement concrete block and excellent in overall strength. Thus, it can be confirmed that the environmentally friendly non-toxic water-borne block manufactured according to the embodiment of the present invention has high quality in terms of mechanical strength as well as environment friendliness.

A permeable block manufacturing apparatus for implementing a method of manufacturing a permeable block according to an embodiment of the present invention will now be described in detail.

4 to 6, the permeable block manufacturing apparatus includes a first crusher 110a and a second crusher 110b, a foreign matter removing unit 120, a particle size separator 140, a plasma processing unit 140 The first agitator 150a and the second agitator 150b, the coloring furnace 160a, the heating furnace 160b, the cooling and drying device 170, the photocatalyst applying device 180, the transfer device 190, A non-toxic waterproofing block, which is basically composed of a waterproofing unit 210, a press molding machine 220, a bilayer 230, a packing machine 240, and a controller.

Hereinafter, each component will be described in more detail.

The first crusher 110a and the second crusher 110b crush aggregate composed of at least one of natural stone selected from basalt, granite, dolomite, silica sand, zircon and germanium to an average particle size of 0.5 to 50 mm. If the first crusher 110a and the second crusher 110b are installed in series to crush the aggregate in a stepwise manner, the load on the crusher can be reduced and the crushing quality of the aggregate is preferable.

The foreign material removing unit 120 removes unnecessary fine powder and various foreign substances contained together with the crushed aggregate. 6, the foreign material remover 120 includes a diaphragm 121 for vibrating and agitating the pulverized aggregate while being supported by the actuator 122, and a blower for applying a wind pressure to one side of the diaphragm 121, A duct 124 which sucks and removes foreign substances blown by the wind pressure from the other side of the diaphragm 121 and a metallic foreign matter mixed with the crushed aggregate provided on the upper side of the diaphragm 121, And an electromagnet 125 to be adsorbed and removed. According to such a configuration, the foreign material remover 120 vibrates and agitates the pulverized aggregate S by the diaphragm 121, while the blower 123 applies the wind pressure to one side and the duct 124 to the wind pressure The electromagnet 125 absorbs and removes the metallic foreign matter E2 from the upper side. This makes it possible to quickly remove various foreign substances mixed with the aggregate. On the other hand, along the periphery of the upper surface of the diaphragm 121, a fence 121a constituted by a mesh net is installed. This prevents the aggregate S from escaping from the diaphragm 121 while allowing the magnetic force of the electromagnet 125 to be allowed because it is the wind pressure by the blower 123.

The separator 130 for each particle size separates the pulverized aggregate by particle size. For this purpose, the granular separator 130 includes a plurality of meshes or granules having different sizes of pores, and separates the granulated aggregates by granularity.

The plasma processing apparatus 140 performs a plasma treatment on the surface of the aggregate washed before mixing the aggregate and the pigment in order to increase the coloring efficiency of the pigment on the aggregate. For this, the atmospheric pressure plasma processing apparatus 140 can be simply installed on the line without being carried out in a vacuum apparatus or a very large mechanical apparatus having a large size. When such a plasma processing apparatus 140 is provided, micro-craters may be formed on the aggregate surface to increase the root mean square (RMS) roughness value. As a result, conditions for easily bonding the pigment components to the surface of the aggregate are established.

The first agitator 150a mixes the plasma-treated aggregate with the pigment and stirs the agitated material sufficiently. Whereby the pigment can be uniformly dispersed and applied to the aggregate surface in a sufficient amount.

The coloring furnace 160a heats the aggregate and the pigment stirred in the first stirrer 150a in the coloring furnace 160a to stably color the pigment on the aggregate. The heating temperature in the coloring furnace 160a is suitably from 200 ° C to 1000 ° C.

The second stirrer 150b mixes and agitates the epoxy resin, the UV stabilizer, and the curing accelerator with the colored aggregate to perform surface coating.

The heating furnace 160b functions to impregnate an aggregate having an epoxy resin, a UV stabilizer, and a curing accelerator coated on the heating furnace 160b. Since the heating furnace 160b is provided with the same kind of the coloring furnace 160a as the coloring furnace 160a, it is preferable that the heating furnace 160b is provided separately.

The cooling and drying unit 170 serves to cool and dry the aggregate impregnated with the protective agent in the heating furnace 160b. To this end, the cooling and drying device 170 passes the aggregate heated in the heating furnace 160b to a cooling dryer 170 installed along a conveyor, which is a conveying device, as shown in FIG. The cooling and drying machine 170 includes a box-shaped main body 171 for providing a passage through which a conveyor for conveying the aggregate can pass and a plurality of blowing fans 172 disposed along the conveyor in the box-shaped main body 171. According to the structure of the cooling and drying machine 170, the heated aggregate can be rapidly cooled and dried.

The photocatalyst applying device 180 has a plurality of high-pressure sprayers capable of spraying the photocatalyst at a high pressure, and the photocatalyst is applied in an amount of 20 to 100 L per m ² . As the photocatalyst, titanium oxide (TiO ₂ ) is taken into consideration, but in order to increase the efficiency in visible light, a composite of titanium oxide and tin oxide to which a metal ion is added or a composite of a titanium oxide and a metal tungsten oxide bonding structure It is possible. It can be said that the production of the colored aggregate is completed when the photocatalyst applying device 180 is disposed.

The third agitator 210 mixes and agitates the color aggregate prepared through the preceding facilities with the two-component polyurethane resin and the curing accelerator. In this case, 70 to 95% by weight of the colored aggregate, 4 to 30% by weight of the polyurethane resin, and 0.001 to 3% by weight of the curing accelerator are mixed. Here, the polyurethane resin mixed with the color aggregate completely replaces the cement, thereby binding the colored aggregate to a high strength. The curing accelerator promotes curing of the polyurethane resin, thereby shortening the curing time.

The press molding machine 220 presses the mixture of the color aggregate, the polyurethane resin and the curing accelerator stirred in the third stirrer 210 into a water permeable block. The pressure molding machine 220 is sprayed with a water-soluble mold release agent before press molding to prevent the adhesion of the polyurethane resin and the color aggregate.

The bilayer 230 serves to cure the permeable block demolded in the press-molding machine 220 by gradually passing the bilayer 230 installed along the conveyor, which is the transfer device 190, or storing the brick 230 for a sufficient length of time. The bilayer 230 is provided with a plurality of cooling fans to control the curing speed for the formed waterproof block.

The packing machine 240 functions to measure and pack the cured water permeable block.

The controller, in conjunction with the various devices mentioned above, including the feeder 190, is responsible for overall control of the processing and transport of the aggregate.

The thus constructed permeable block manufacturing apparatus smoothly performs an original series of processes for manufacturing and constructing an environmentally friendly non-toxic permeable block by suitably arranging the various devices mentioned above.

As a result, it is possible to use the semi-permanent use because it is excellent in permeability and does not discolor or discolor, and it is possible to reduce the maintenance cost, contribute to prevention of groundwater depletion and growth of trees, It is possible to obtain an environmentally friendly non-toxic pitcher block.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

110a: first crusher 110b: second crusher
120: foreign matter removing device 121: diaphragm
121a: Mesh mesh fence 122: Actuator
123: blower 124: duct
125: electromagnet 130: particle size separator
140: plasma processing apparatus 150a: first stirrer
150b: second stirrer 160a: coloring furnace
160b: Heating furnace 170: Cooling dryer
180: Photocatalyst applying device 190: Feeding device
210: third stirrer 220: pressure molding machine
230: Yang Generation 240: Packing machine

Claims (12)

A method for producing a color aggregate comprising the steps of: Mixing and agitating the color aggregate, the two-component polyurethane resin, and the curing accelerator; Injecting a mixture of the agitated color aggregate, the polyurethane resin and the curing accelerator into a molding machine and press-molding the mixture into a water permeable block; Demolding the permeable block formed in the molding machine in a molding machine; And curing the permeable block desorbed in the forming machine,
The step of preparing the colored aggregate may include the steps of: pulverizing the aggregate composed of natural stone to an average particle size of 0.5 to 50 mm; Separating the pulverized aggregate by particle size; Mixing and agitating the aggregate separated by the particle size with the pigment; Heating the agitated aggregate and the pigment to color the aggregate; Mixing and aging the colored aggregate with an epoxy resin, a UV stabilizer, and a curing accelerator to form a surface coating; Heat-impregnating an aggregate surface-coated with an epoxy resin, a UV stabilizer and a curing accelerator; And cooling and drying the heat-impregnated aggregate. The method according to claim 1,
Wherein 70 to 95% by weight of the colored aggregate, 4 to 30% by weight of the polyurethane resin, and 0.001 to 3% by weight of the curing accelerator are mixed. The method according to claim 1,
Wherein a water-soluble mold releasing agent is injected into the molding machine before the mixture of agitated aggregate, polyurethane resin and curing accelerator is injected into the molding machine so as to facilitate demoulding of the waterproof block from the molding machine. delete The method according to claim 1,
Wherein the step of preparing the colored aggregate further comprises applying 20 to 100 L / m ^{2 of a} photocatalyst to the cooled and dried aggregate. The method according to claim 1,
Wherein the aggregate is washed before mixing the aggregate and the pigment to increase the coloring efficiency of the pigment with respect to the aggregate, and the surface of the aggregate is subjected to plasma treatment. The method according to claim 1,
Wherein the material of the aggregate is at least one selected from the group consisting of basalt, granite, dolomite, silica sand, zircon, and germanium. 8. The method of claim 7,
Wherein the mixture is mixed at a ratio of 50 to 90% by weight of the aggregate, 1 to 10% by weight of a pigment, 1 to 30% of an epoxy resin, 0.1 to 5% of a UV stabilizer and 0.1 to 5% by weight of a curing accelerator. 8. The method of claim 7,
In the step of injecting the aggregate surface-coated with the epoxy resin, the UV stabilizer and the curing accelerator into the furnace and then heating and impregnating the furnace, the furnace is firstly heated at a temperature of 300 to 780 캜, Wherein said method comprises the steps of: The method according to claim 1,
The work of removing the foreign matter from the crushed aggregate proceeds before the crushed aggregate is separated by the grain size. In the operation of removing the foreign matter, the crushed aggregate is vibrated by the vibration plate, Wherein a foreign matter blown by wind pressure is sucked and removed, and on the upper side, a metallic foreign matter is adsorbed and removed by an electromagnet. A permeable block, characterized in that it is manufactured by the method for manufacturing a permeable block according to any one of claims 1 to 3 and 5 to 10. 12. The method of claim 11,
Wherein the permeable block is any one selected from a sidewalk block, a tree protection block, a boundary stone, a reinforcing soil block, a landscaping block, and a non-slip block.

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