WO2018186568A1

WO2018186568A1 - Water-permeable block production system using recycled synthetic resin

Info

Publication number: WO2018186568A1
Application number: PCT/KR2018/000817
Authority: WO
Inventors: 김태현
Original assignee: 김태현
Priority date: 2017-04-03
Filing date: 2018-01-17
Publication date: 2018-10-11
Also published as: CN110049852A; CN110049852B; KR101814332B1

Abstract

Disclosed is a water-permeable block production system using recycled synthetic resin. The disclosed water-permeable block production system using recycled synthetic resin comprises: a primary heating furnace (200) for heating fine aggregate, transported on a moving conveyor (100), to a set temperature; a secondary heating furnace (300), structured so as to be in communication with an outlet of the primary heating furnace (200), for keeping the heated fine aggregate provided by the primary heating furnace (200) at the constant heated temperature; a melting furnace (400) into which heated fine aggregate, provided from the secondary heating furnace (300), and recycled synthetic resin, pulverized to 0.5-2.0 cm in diameter, are inserted together, and which melts the recycled synthetic resin by the heated state of the fine aggregate; a mixer (500) for agitating and mixing the molten resin and fine aggregate provided by the melting furnace (400), the interior temperature of the mixer being 220-290 ℃ and rotational speed for same being 10-30 rpm; a compression molding press (600) for compression-molding, at 30-40 MPa, the mixture of molten resin and fine aggregate provided by the mixer (500); and a cooler (700) for double-cooling, via water and air for 15-20 seconds, the water-permeable block (1) molded by the compression molding press (600) while transporting the former.

Description

Permeable Block Manufacturing System Using Recycled Synthetic Resin

The present invention relates to a permeation block manufacturing system using a waste container used as a recycled synthetic resin, for example, a food and beverage container, and more particularly, to produce a permeation block having a high porosity and a high porosity, and to prevent pore clogging and harmful gases. The present invention relates to a permeable block manufacturing system using recycled synthetic resin that provides an environment-friendly working environment due to a low generation amount.

In modern cities, due to the rapid urbanization, the natural drainage area is markedly reduced.

This causes the surface water to be continuously discharged due to rainwater.

In particular, 95% of the stormwater has already been converted to surface water in close-populated areas, and the drainage system has reached its limit.

In addition, due to the effects of abnormal climate, including global warming, the shape of precipitation has also changed considerably, and the direction is also increasing in the form of heavy rains, and precipitation is concentrated in a certain period of time. And long-term economic and social costs are expected to increase due to water shortages.

Due to this situation, developed countries have been continuously improving the infrastructure of roads since the early 1990s, saving rainwater drained to surface water in temporary storage spaces and allowing natural drainage to the ground to reduce drainage load, which is desirable from an environmental point of view. The construction method which could be introduced was put into practical use.

However, in spite of the social necessity and domestic reality, the construction method suitable for domestic situation has not been developed in Korea.

In addition, due to the increased risk of flooding due to the increased incidence of sudden torrential rains, developed countries continue to expand the installation of storm water storage facilities.

In Korea, it is time to expand the development of permeable pavement in order to increase the ecological area ratio of roads. Therefore, research and various construction methods are devised and applied.

However, the conventionally developed permeation method is mainly a method using a permeation block, and forms a permeation block using natural aggregate or recycled aggregate and cement mixture.

This is because the air gap in the permeation block is small, there is a problem that the function of discharging the rain on the surface of the road down the surface as time passes.

In addition, there is a risk that the strength and elasticity of the permeable block is lowered, there is a problem such as increase of road surface contaminants, deterioration of walking environment, frostbite generation of structures surrounding the permeable block.

In addition, due to the natural aggregate or recycled aggregate used to manufacture the conventional permeable block is not preferable in terms of environment.

If you do not solve this problem fundamentally and replace only the surface sidewalk block with a pitcher, it will lose its function in the long run due to the continuous decrease in the index.

The present invention has been made to solve the above-mentioned problems, the main object of the present invention is to mix the waste synthetic resin used as an edible container to prepare a water permeable block, but to enhance the strength by increasing the resin compounding ratio, Permeability block by reducing pressing force to increase porosity and increase cooling time of permeation block to prevent burning or melting of resin to prevent pore blockage and to prevent harmful gas generation To provide a manufacturing system.

According to the present invention for achieving the above object, a transfer conveyor for transporting the fine aggregate discharged from the hopper is stored fine aggregate; A primary heating furnace for heating the fine aggregate transferred through the transfer conveyor to a predetermined temperature; A secondary heating furnace configured to be in communication with an outlet of the primary heating furnace to insulate the residual aggregate in a heating state provided from the primary heating furnace to maintain a constant temperature thereof; A molten furnace in which the heated aggregate provided from the secondary heating and the recycled synthetic resin pulverized to a diameter of 0.5 to 2.0 cm are added together to melt the recycled synthetic resin by the heated aggregate; Mixing by mixing the molten resin and the fine aggregate provided from the melting furnace, the internal temperature is 220 ~ 290 ℃, the rotation speed is 10 ~ 30rpm mixer; A pressure molding machine for press-molding the mixture of the molten resin and the fine aggregate provided from the mixer at a pressure of 30 to 40 MPa; There is provided a permeable block manufacturing system using a recycled synthetic resin comprising a; and a cooler for dual cooling by water cooling and air cooling for 15 to 20 seconds while transferring the permeable block formed by the pressure molding machine.

Preferably, the mixer comprises a cylindrical mixer barrel; It includes a plurality of stirring blades arranged in a step shape along the longitudinal direction on the inner circumferential surface of the mixer barrel, each of the stirring blades may be disposed so that a portion thereof overlaps with the adjacent stirring blades.

Preferably, the cooler, the cooling tray for receiving each water permeation block discharged from the pressure molding machine; A horizontal cooling water tank configured to immerse the cooling tray in the cooling water and to cool the water while being installed under the cooling tray containing the water permeable block; A transport conveyor for transporting the cooling tray along the longitudinal direction of the cooling water tank; An air supply pipe installed above the cooling tray along a moving direction of the cooling tray; And an air nozzle disposed at predetermined intervals on the air supply pipe to inject air in the air supply pipe toward the permeation block to cool the permeation block.

According to the solution of the present invention, it is environmentally friendly by using a mixture of waste synthetic resin used as an edible container to prepare a water permeable block.

In addition, by increasing the resin compounding ratio compared to the existing can provide a permeable block of enhanced strength.

In addition, the porosity can be increased by lowering the pressing force in the press molding as compared with the existing, thereby increasing the permeability efficiency.

In addition, by increasing the cooling time of the permeation block to prevent burning or melting of the resin to prevent the clogging of the pore and also to prevent the generation of harmful gases can improve the working environment.

1 is a block diagram of a pitcher block manufacturing system using a recycled synthetic resin according to the present invention

2 is a block diagram of a mixer which is one configuration of a system according to the present invention;

3 is a configuration diagram of a cooler that is one configuration of another system according to the present invention;

4 is a flow chart for explaining a method of manufacturing a pitcher block using a pitcher block manufacturing system using a recycled synthetic resin according to the present invention.

5 is a shape diagram of a pitcher block manufactured according to the system of the present invention;

Figure 6 is a schematic cross-sectional view showing an embodiment of an air nozzle according to the present invention

The invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosure may be made thorough and complete, and to fully convey the spirit of the present invention to those skilled in the art. Like reference numerals refer to like elements throughout. Meanwhile, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular forms also include the plural unless specifically stated otherwise in the text. As used herein, "comprises" and / or "comprising" refers to the presence of one or more other components, steps, operations and / or elements in which the stated components, steps, operations and / or elements are known. Or does not exclude additions.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a pitcher block manufacturing system using a recycled synthetic resin according to the present invention.

According to Figure 1, the permeation block manufacturing system using the recycled synthetic resin according to the present invention, the transfer conveyor 100, the primary heating furnace 200, the secondary heating furnace 300, the melting furnace 400, the mixer 500 , A press molding machine 600 and a cooler 700.

The transfer conveyor 100 serves to transfer the fine aggregate discharged from the hopper 10 in which the fine aggregate is stored to the primary heating furnace 200.

The primary furnace 200 is rotatably supported by the frame, and serves to heat the aggregate aggregate transported through the transfer conveyor 100 to a predetermined temperature, the primary furnace 200 is a recycled synthetic resin When the fine aggregate is mixed with the fine aggregate, the fine aggregate is preheated in order to melt the regenerated synthetic resin by the heating temperature of the fine aggregate.

The secondary heating furnace 300 is insulated in communication with the outlet of the primary heating furnace 200 to keep the heated aggregate provided from the primary heating furnace 200 to maintain its temperature constant. Role. At this time, the secondary heating furnace 300 has an installation structure in which the outlet is installed obliquely downwardly inclined from the inlet so that the fine aggregate in the secondary heating furnace can be naturally discharged toward the outlet.

The melting furnace 400 is installed at the outlet side of the secondary heating furnace 300, and the heated aggregate provided from the secondary heating furnace 300 and the pulverized recycled synthetic resin are introduced together to be heated by the heated aggregate. It plays a role to make recycled synthetic resin melt. Here, the diameter of the recycled synthetic resin introduced into the melting furnace 400 is suitable for 0.5 ~ 2.0cm.

On the other hand, the recycled synthetic resin is introduced into the melting furnace 400 through the process of sorting, pulverizing, washing and drying.

For reference, the sorting is a process for sorting the PET bottles (PET) used as food and beverage containers by colorless, colored, and materials, and the grinding is to grind the recycled synthetic resin selected from the above to be 0.5 to 2.0cm in diameter. Washing and drying are operations for washing, dehydrating and drying the pulverized recycled synthetic resin.

Here, using colorless of the selected recycled synthetic resin can produce a transparent color permeable block, if using a color can be prepared a permeable block of the color corresponding to it so that the desired color can be obtained without using a dye Therefore, it is possible to manufacture environmentally friendly pitching block, and contribute to cost reduction.

The mixer 500 serves to stir and mix the molten resin and the fine aggregate provided from the melting furnace 400, as shown in FIG. 2, and a cylindrical mixer cylinder 510 having an inlet 511 and an outlet 512. ), And a plurality of plate-shaped or streamlined stir blades 520 disposed on the inner circumferential surface of the mixer barrel 510 along the longitudinal direction.

Here, each of the stirring blades 520 is preferably disposed so that a portion thereof, for example, an end portion in the longitudinal direction overlaps with another adjacent stirring blade (o). In the case of a screw-type stirring blade in general, the aggregate aggregate and the melted resin are caused to lean to one side, so that it is difficult to obtain a smooth stirring effect, while the stirring blade 520 of the present invention is disposed in a stepped shape, so that the aggregate and the melted resin are The smooth flow along the stairs can double the flow efficiency, thereby doubling the stirring efficiency.

And, the recycled synthetic resin and the aggregate aggregate is added to the mixer 500 at a ratio of 3: 7, the temperature inside the mixer is heated to 220 ~ 290 ℃, the speed of the mixer at a speed of 10 ~ 30rpm It is preferable to rotate.

When the internal temperature of the mixer 500 is lower than 220 ° C., the internal temperature of the mixer 500 may not solidify, and if the internal temperature of the mixer 500 is higher than 290 ° C., the internal temperature of the mixer 500 may be burned due to high heat.

In addition, the mixing ratio of the recycled synthetic resin and fine aggregates is an important factor for improving the strength, and as the mixing ratio of the recycled synthetic resins increases with respect to the fine aggregates, the cohesive strength of the fine aggregates increases, but the mixing ratio of the recycled synthetic resins is more than necessary If it is increased, the ductility is increased to increase the possibility of deformation is preferably determined in the above compounding range.

In addition, in the case of the rotational speed of the mixer 500, the rotational speed in the above range is good mixing efficiency. When the rotation is slower than this range, the stirring efficiency is significantly lowered. However, even if it is rotated faster than the above range, the stirring efficiency is lowered.

The mixer 500 is provided with first and

second burners

530 and 540 for heating the inside of the mixer at both end portions thereof, and a heating wire 550 is provided on the wall surface of the mixer barrel 510 so that the mixer 500 is provided with first and second burners. The burner will heat up the inside of the mixer. The reason why the burner and the heating wire are combined is that it is difficult to evenly heat the burner alone, so even heating is possible by reinforcing the heating wire, and supplementing the heating wire can save electric energy rather than installing several burners. to be.

The pressure molding machine 600 is a pressure molding of the mixture of the molten resin and the fine aggregate provided from the mixer 500 at a pressure of 30 ~ 40MPa by the plunger 610.

Here, the important factor is the pressurization pressure, the larger the pressing force, the porosity is lowered because the pores between the molten resin and the fine aggregate becomes dense, while the smaller the pressing force increases the porosity between the molten resin and the fine aggregate, thereby increasing the porosity. In particular, the permeation block may be better because the larger the porosity, the larger the porosity, so the larger the porosity, the greater the porosity. Can be guaranteed. Porosity when pressurized to the above pressure is 20 to 30%.

The cooler 700 is dual cooling for 15 to 20 sec by water and air cooling while conveying the water permeable block 1 formed by the pressure molding machine 600, as shown in FIG. 3, in the pressure molding machine 600 Cooling tray 710 for accommodating each of the discharged water permeation block (1), and horizontal cooling water for cooling the water by immersing the cooling tray in the cooling water while being installed in the lower portion of the cooling tray 710 containing the water permeable block (1) A tank 720, a transfer conveyor 730 for transferring the cooling tray 710 along the longitudinal direction of the cooling water tank 720, and installed along the moving direction of the cooling tray on the cooling tray 710. The air supply pipe 740 and a plurality of air nozzles 750 which are arranged at regular intervals on the air supply pipe to inject air in the air supply pipe toward the permeation block to cool the permeation block.

Accordingly, the external cooling of the permeation block 1 is performed by water cooling, and the internal cooling of the permeation block 1 is simultaneously performed by air cooling, thereby allowing the inside and outside of the permeation block 1 to be cooled down evenly. .

The improvement in cooling efficiency contributes to productivity improvement since the curing time can be significantly reduced compared to the existing curing time of 28 days. In this regard, as described above, the water permeability block 1 of the present invention can increase the cooling efficiency and shorten the cooling time since the porosity is improved compared to the conventional one.

For reference, a brief description of a method for manufacturing a permeable block using recycled synthetic resin according to the above system is as follows (see FIG. 4).

Residual aggregate heating step (S10), which is a first step, is a step of inputting the residual aggregate transferred by the transfer conveyor 100 to the primary heating furnace 200 and heating it to a predetermined temperature.

Residual aggregate warming step (S20) is a step of keeping the heated temperature of the aggregate remains constant by inputting the residual aggregate heated in the first step into the secondary heating furnace (300).

Melting step (S30) of the third step is a step of melting the regenerated synthetic resin by the heated temperature of the residual aggregate by inputting the fine aggregate discharged from the secondary heating furnace 300 and the recycled synthetic resin crushed to a predetermined size into the melting furnace 400 to be.

Here, as described above, the recycled synthetic resin introduced into the melting furnace 400 is subjected to the sorting step (S100), the crushing step (S200) and the washing and drying step (S300).

Mixing step (S40), which is the fourth step, is added to the mixer in the ratio of the recycled synthetic resin and the fine aggregate 3: 7, the temperature inside the mixer 500 is heated to 220 ~ 290 ℃, the mixer 500 Rotational speed is a step of mixing the molten recycled synthetic resin serving as a coagulant and the aggregate by rotating at a speed of 10 ~ 30rpm.

Step 5, forming step (S50) is a step of forming a permeable block by putting a predetermined amount of the mixed molten resin and fine aggregate into the pressure molding machine 600, by pressing the pressure of 30 ~ 40MPa by the plunger 610. .

The cooling step (S60), which is a sixth step, is a step of evenly cooling the surface and the inside of the permeation block 1 on which the molding is completed for 15 to 20 seconds.

That is, in the cooling step, as shown in FIG. 3, the cooling tray 710 containing each of the permeation blocks 1 passes through the cooling water tank 720 while being transported by the conveyor 730, and thus water cooling is performed. Air is injected by the nozzle 750 through the open upper portion of the cooling tray 710 to take two cooling methods in parallel to air-cool the water permeable block 1.

Accordingly, since the external cooling of the permeation block 1 is performed by water cooling, and the internal cooling of the permeation block 1 is simultaneously performed by air cooling, the inside and outside of the permeation block 1 can be cooled overall.

On the other hand, the air nozzle 750 may be made of a swirl nozzle as shown in FIG. The vortex nozzle is a means for rotating the injected air while increasing the blowing force of the air. At the upper end thereof, a thread forming part 64 having a thread is formed to be fastened to the air supply pipe 740, and the thread forming part 64 is formed. From the bottom thereof, a hollow and conical body portion 65 is formed integrally extending. The body portion 65 has a plurality of air holes 66 which are holes for final injection of air along the spiral direction. It is formed through.

In addition, the outer surface of the body portion 65 is formed with a spiral air groove inner groove 68 coinciding with the air holes 66 arranged in a spiral direction, the air groove inner groove 68 is an air hole ( 66 to guide the jet direction of the air jetted from the spiral direction to form a vortex.

Accordingly, the air injected through the air hole 66 of the vortex nozzle and the spiral air while the inner groove 68 rotates and simultaneously sprays air while forming a vortex, thereby evenly spraying the permeable block 1 while the permeable block (1) The whole is cooled evenly.

In addition, the anti-fouling coating layer coated with the anti-fouling coating composition may be formed around the stirring vane 120 to effectively achieve the prevention and removal of contaminants. The antifouling coating composition includes hydrogen peroxide and sodium metasilicate in a 1: 0.01 to 1: 2 molar ratio, and the total content of hydrogen peroxide and sodium metasilicate is 1 to 10% by weight based on the total aqueous solution. In addition, sodium metasilicate or calcium carbonate may be used as a material for improving the coatability of the antifouling coating layer, but preferably sodium metasilicate may be used. The hydrogen peroxide and sodium metasilicate are preferably 1: 0.01 to 1: 2 as the molar ratio. If the molar ratio is out of the above range, the coating property of the substrate may be reduced or the moisture absorption of the surface may be increased after application, thereby removing the coating film. have.

The hydrogen peroxide and sodium metasilicate are preferably 1 to 10% by weight of the total composition aqueous solution, if less than 1% by weight has a problem that the applicability of the substrate is lowered, if it exceeds 10% by weight crystal due to the increase in the coating film thickness Precipitation is likely to occur.

It is preferable to apply | coat by the spray method as a method of apply | coating the said antifouling coating composition on a base material. In addition, the final coating film thickness on the stirring blade 120 is preferably 500 to 2000 kPa, more preferably 1000 to 2000 kPa. If the thickness of the coating film is less than 500 kPa, there is a problem of deterioration in the case of high temperature heat treatment, and if the thickness of the coating film exceeds 2000 kPa, crystal precipitation of the coated surface is liable to occur.

In addition, the antifouling coating composition may be prepared by adding 0.1 mol of hydrogen peroxide and 0.05 mol of sodium metasilicate to 1000 ml of distilled water, followed by stirring.

In addition, the cooling water tank 720 may be formed of a surface protective coating layer of a surface coating material of a metal material to prevent corrosion of the surface from dust, contaminants, and the like. The surface protective coating layer is composed of 2.5% by weight zirconium powder, 60% by weight alumina powder, 30% by weight NH ₄ Cl, 2.5% by weight zinc, 2.5% by weight magnesium and 2.5% by weight titanium.

The zirconium powder is excellent in corrosion resistance and heat resistance. This zirconium powder is mixed at 2.5% by weight. If the mixing ratio of the zirconium powder is less than 2.5% by weight, the corrosion resistance and the heat resistance are not greatly improved. On the other hand, if the mixing ratio of the zirconium powder exceeds 2.5% by weight, the above-mentioned effect is not improved further while the material cost is greatly increased. Therefore, the titanium is preferably mixed 2.5% by weight.

The alumina powder is added for the purpose of sintering, tangling, fusion prevention, etc. when heated to a high temperature. When the alumina powder is added in less than 60% by weight, the effect of sintering, tangling and fusion prevention is inferior, and when the alumina powder exceeds 60% by weight, the above-mentioned effect is not further improved, while the material cost is greatly increased. Therefore, it is preferable to add 60 weight% of alumina powders.

The NH ₄ Cl reacts with zinc and magnesium in a vapor state to serve to activate diffusion and penetration. This NH ₄ Cl is added 30% by weight. If NH ₄ Cl is added at less than 30% by weight, it does not react properly with the vaporized zinc and magnesium and thus does not activate diffusion and penetration. On the other hand, when NH ₄ Cl exceeds 30% by weight, the above-mentioned effect is not improved further, while the material cost is greatly increased. Therefore, it is preferable to add 30% by weight of NH ₄ Cl.

The zinc is formulated to prevent corrosion of metals in water and to be used for electrical applications. This zinc is mixed 2.5% by weight. If the mixing ratio of zinc exceeds 2.5% by weight, it will not properly prevent corrosion of the metal on water. On the other hand, when the mixing ratio of zinc exceeds 2.5% by weight, the above-mentioned effect is not improved further, while the material cost is greatly increased. Therefore, the zinc is preferably mixed 2.5% by weight.

Since the pure metal of magnesium has a low structural strength, the magnesium is combined with zinc to increase the hardness, tensile strength and corrosion resistance of the metal. This magnesium is mixed 2.5% by weight. If the mixing ratio of magnesium is less than 2.5% by weight, the hardness, tensile strength and corrosion resistance to salt water of the metal when combined with zinc and the like are not significantly improved. On the other hand, when the mixing ratio of magnesium exceeds 2.5% by weight, the above-mentioned effect is not improved further, while the material cost is greatly increased. Therefore, magnesium is preferably mixed at 2.5% by weight.

The titanium is a light, hard and corrosion-resistant transition metal element has a silver-white metallic luster, and because of its excellent corrosion resistance and low specific gravity, the weight of the titanium is only 60% compared to steel, so that the weight of the coating material applied to the metal base material is reduced but the gloss is increased. It is formulated to have excellent waterproof and corrosion resistance.

This titanium is mixed 2.5% by weight. When the mixing ratio of titanium is less than 2.5% by weight, the weight of the coating material applied to the metal base material is not so much reduced, and the glossiness, waterproofness, and corrosion resistance are not greatly improved. On the other hand, if the mixing ratio of titanium exceeds 2.5% by weight, the above-mentioned effect is not further improved while the material cost is greatly increased. Therefore, the titanium is preferably mixed 2.5% by weight.

The surface coating method of the cooling water tank 720 according to the present invention is as follows.

In order to prevent the oxidation of the cooling water tank 720, the cooling water tank 720 and the coating material blended in the above-mentioned structure to be formed with the surface protective coating layer are put together in the closing furnace. Argon gas is injected, and maintained at a temperature of 700 ° C to 800 ° C for 4 to 5 hours while argon gas is injected.

By performing the above steps, zirconium powder, alumina powder, zinc, magnesium, and titanium in a vapor state are formed inside of a closed state, and zirconium powder, alumina powder, zinc, magnesium, and titanium blend penetrate the surface of the base material to provide a surface protective coating layer. Is formed.

After the surface protective coating layer is formed, the internal temperature is closed to maintain the temperature of the coating material / substrate composite at 800 ° C. to 900 ° C. for 30 to 40 hours. A surface protection coating layer for preventing corrosion is formed on the surface of the cooling water tank 720. The surface of the cooling water tank 720 and the outside air is isolated. At this time, the sudden temperature change in performing the above process causes the surface protective coating layer on the surface of the cooling water tank 720 to be peeled off, thereby changing the temperature at a rate of 60 ° C / hr.

The surface protective coating layer of the present invention has the following advantages.

Since the surface protective coating layer of the present invention has a very wide range of uses, it can be applied by various methods such as curtain coating, spray painting, dip coating, flooding, and the like.

The surface protective coating layer of the present invention can be applied with a very thin layer thickness in addition to the principle protection against corrosion and / or scale, thereby improving the electrical conductivity as well as material and cost savings. Even after hot forming, a thin electroconductive primer may be applied on top of the application layer if high electrical conductivity is desired.

After the forming process or the hot forming process, the coating material may be retained on the surface of the substrate, for example, to increase scratch resistance, to improve corrosion protection, to meet aesthetic appearance, to prevent discoloration, and to be electrically conductive. And can be provided as a primer for conventional downstream processes (eg, dip and electrophoretic dip coating).

Since a surface protective coating layer made of zirconium powder, alumina powder, NH ₄ Cl, zinc, magnesium, and titanium is applied to the cooling water tank 720 of the present invention, corrosion of the surface of the cooling water tank 720 from dust, contaminants, etc. Can be prevented.

Although the present invention has been described in detail through specific examples, this is for explaining the present invention in detail, and the present invention is not limited thereto, and a person having ordinary skill in the art within the technical idea of the present invention. It is obvious that modifications and improvements are possible.

Simple modifications and variations of the present invention are all within the scope of the present invention, and the specific scope of protection of the present invention will be apparent from the appended claims.

Claims

A transfer conveyor 100 for transferring the fine aggregate discharged from the hopper in which the fine aggregate is stored;

A primary heating furnace (200) for heating the fine aggregate conveyed through the transfer conveyor (100) to a predetermined temperature;

A secondary heating furnace 300 configured to communicate with an outlet of the primary heating furnace 200 to insulate the residual aggregate in a heating state provided from the primary heating furnace 200 to maintain a constant temperature thereof;

A melting furnace 400 for melting the regenerated synthetic resin by adding the regenerated synthetic resin pulverized to a diameter of 0.5 to 2.0 cm and the heated aggregate provided from the secondary heating furnace 300 by heating;

Mixing by mixing the molten resin and the fine aggregate provided from the melting furnace 400, the internal temperature is 220 ~ 290 ℃, the rotation speed is 10 ~ 30rpm mixer 500;

A pressure molding machine 600 for press-molding the mixture of the molten resin and the fine aggregate provided from the mixer 500 at a pressure of 30 to 40 MPa; And

And a cooler (700) for dual cooling by water and air cooling for 15 to 20 sec while transferring the permeable block (1) formed by the pressure molding machine (600).
The method according to claim 1,

The mixer 500,

Cylindrical mixer barrel 510;

Including a plurality of stirring blades 120 which are arranged in the longitudinal direction on the inner circumferential surface of the mixer barrel 510, each of the stirring blades 120 is a portion of which is disposed to overlap with the adjacent stirring blades A system for producing a permeable block using recycled synthetic resin.
The method according to claim 1,

The cooler 700,

A cooling tray 710 for receiving each water permeation block 1 discharged from the pressure molding machine 600;

A horizontal cooling water tank 720 installed in the lower portion of the cooling tray 710 in which the water permeation block 1 is accommodated so as to immerse the cooling tray in the cooling water to cool the water;

A transfer conveyor 730 for transferring the cooling tray 710 along the longitudinal direction of the cooling water tank 720;

An air supply pipe 740 installed on the cooling tray 710 along the moving direction of the cooling tray; And

Regenerated synthetic resin comprising a; air nozzle 750 for air cooling the permeation block by injecting the air in the air supply pipe toward the permeation block (1) while being arranged at a predetermined interval on the air supply pipe (740) Pitching block manufacturing system using.