KR20230007910A - Apparatus and method continuous coating of cork chips and porous base-layer block paving cork chips using therof - Google Patents

Abstract

The present invention relates to an apparatus and a method for continuously coating cork chips, and a water-permeable base layer block, in which the cork chips are packaged, manufactured using the same. According to the present invention, the water-permeable base layer block in which the cork chips are packaged comprises: a block body installed on a ground, having pores to be absorbed and permeable, formed by mixing bottom ash, recycled aggregate, cement, fly ash, and water, stirring the mixture, and accommodating a concrete composition having a water permeable property with a porosity of 30 % or greater and an absorption rate of 5 % or greater; a polymer package layer including an aggregate and a hardening material applied to the aggregate, and stacked on the block body; and a cork layer disposed on the polymer packaging layer, wherein the polymer packaging layer includes: a water-permeable silica-based polymer base layer stacked on the block body and having a predetermined size of porosity; and a water-permeable silica-based polymer surface layer laminated on the water-permeable silica-based polymer base layer and formed of particles smaller than those of the water-permeable silica-based polymer base layer. Accordingly, production per unit time can be significantly increased by simplifying processes, and mass production can be facilitated by remarkably reducing production costs. In addition, the water-permeable base block manufactured as such does not contain heavy metals and endocrine disruptors, is environmentally friendly and harmless to the human body, facilitates water permeability and water drainage, is capable of partially repairing infiltrated rainwater, is capable of improving groundwater quality and preserving groundwater by water permeability, water drainage, and water repair, is capable of reducing urban heat island phenomenon, and is capable of reducing fine dust.

Description

Apparatus and method for continuous coating of cork chips and permeable base block in which cork chips are packaged using the same

The present invention relates to an apparatus and method for continuous coating of cork chips, and a water permeable substrate block packed with cork chips manufactured using the same.

In general, walking trails and bicycle roads are created to improve the convenience and health of residents, and the roads are created by installing boundary stones with a predetermined width on both sides between landscaping and trees and exposing natural soil. Most of them are installed on the ground surface using sidewalk blocks made of cement, or poured and formed on the ground surface using concrete and asphalt concrete.

Trails and bicycle roads made by exposing conventional natural soil have the drawback of frequent maintenance because the soil is washed away by rainwater during rain and the trails are easily lost. And bicycle roads have the advantages of excellent durability and easy construction, but there is a problem that a user falls by mistake or a serious injury occurs to the body even in a light collision of users.

In addition, in order to solve the above problems, a pavement having a predetermined length and width is formed by mixing rubber chips obtained by crushing waste tires to a predetermined size, silica sand and an adhesive in a predetermined ratio, and then asphalt or concrete is paved. Adhesive is applied to the formed surface, and the molded packaging material is double wrapped to promote the safety of users. Since it provides elasticity, dust or smell is generated severely, and there is a problem in that harmful substances are emitted from the waste tire.

In addition, in the case of recycled products such as waste tires and waste polyurethane, some products contain heavy metals, which not only causes environmental pollution, but also damages the packaging material after construction, resulting in poor aesthetics.

In addition, the paving materials, impermeable sidewalk blocks, concrete, etc. are not all nature-friendly, so there are various problems such as not satisfying the desire to be more familiar with nature that people who visit parks have in common.

In order to solve these problems, in recent years, eco-friendly road pavement materials using cork shreds, which have excellent elasticity, water permeability or drainage induction performance, and can be eco-friendly road pavement, have been widely used.

At this time, if pure cork chips are crushed and used for road pavement directly, durability is deteriorated due to various problems such as deterioration in bonding strength between cork chips and binders, color change, and deterioration of antibacterial properties due to ultraviolet rays and seasonal changes. Cork chip elastic pavement processed through the processing step is used for road pavement.

Republic of Korea Patent Registration No. 10-1707772 (hereinafter referred to as Patent Document 1) is a method for manufacturing cork chips with improved antibacterial activity and tensile strength. Drying step of drying to % by weight, b) mixing step of injecting and mixing urethane resin into the cork chips dried by the drying step, c) preventing discoloration before curing of the mixture mixed by the mixing step and antibacterial properties Injecting step of injecting pigment, antioxidant, and antibacterial agent to secure, d) Steam injection step of injecting high-temperature steam so that the mixture does not stick to each other in the process of curing after the resin is completely coated on the surface of the cork chip in the mixer, e) a first cooling step of cooling the mixture by injecting cool air when the mixture is cured by the steam injection step, f) discharging the mixture cooled by the first cooling step from the coater and discharging the discharged mixture through a blower It is configured to include; a secondary cooling step of cooling using.

However, since Patent Document 1 is a method of manufacturing by injecting cork chips and binders into the main body of a fixed coating machine, there is a limit to the amount of production per unit time due to the limited capacity of the equipment, so the product processing cost increases, and the coating process takes a long time when applied to large construction sites. has a downside. In addition, since the cork chips are stagnant inside the coating machine, the binder is applied thereto, and the binder is stirred until it is completely cured, and the injection of water vapor and the use of a hardening accelerator are required to speed up the curing speed, so the process is complicated. The downside is that it takes a long time to process. In addition, due to the nature of the binder, there is a disadvantage that recycling is not possible when the paved cork chip pavement is dismantled. In addition, since the ratio of cork chips and binder is determined at the construction site during the laying of cork chips, there is a disadvantage that the tensile strength, elongation, and hardness of a certain ratio are not constant, so defects such as lifting and bending after road pavement construction may occur. There is a problem with being able to.

In addition, in the case of Republic of Korea Patent Registration No. 10-1983826 (hereinafter referred to as Patent Document 2), a continuous wind power transfer sorting unit for controlling the moisture content while continuously transporting the crushed cork chips by wind power and sorting them into particles of a predetermined size in multiple stages; a mixing and conveying unit for conveying a cork chip mixture in which additives are mixed with cork chips of which particle size is selected; Continuous spray coating unit for spraying and coating the liquefied thermoplastic binder while transporting the cork chip mixture in a suspended state using wind power; and a continuous cold and hot drying unit in which the thermoplastic binder-coated cork chip mixture is cooled and cured and dried in warm air in multiple stages while being air-transferred to produce elastic cork chips continuously, wherein the continuous spray coating unit is configured to continuously produce elastic cork chips. It consists of a transfer pipe for transferring the cork chip mixture supplied from the discharge port, a blower installed at one end of the transfer pipe, and a spray nozzle for spraying and coating the liquid thermoplastic binder discharged from the binder heating hopper on the floating cork chip mixture. Disclosed is an eco-friendly elastic cork chip continuous manufacturing apparatus.

However, in Patent Document 2, since too many conveying devices or conveying pipes are installed for continuous production, cork chips that are not completely hardened frequently block the conveying device or conveying pipe, thereby solving the clogging problem. In order to do this, the device must be frequently stopped and operated again after cleaning, so that the advantages of the continuous production device cannot be utilized at all.

In addition, when a permeable base block formed of cork chips is newly installed in a park, playground, or playground, impervious cement concrete is placed below the ground, so rainwater passing through the cork chips does not penetrate into the ground and is stagnant inside the permeable base block or There is a problem that the pitcher cannot be flowed back to the outside.

Registered Patent Publication No. 10-1707772 Registered Patent Publication No. 10-1983826

The present invention is to solve the conventional problems as described above, and an object of the present invention is an apparatus and method for continuous coating of cork chips using a single agitator that minimizes clogging and a permeable base layer block in which cork chips are packed using the same is to provide

In order to achieve the object of the present invention as described above, a cork chip continuous coating apparatus according to an embodiment of the present invention, a drying unit for drying the cork chips; a hopper for guiding the dried cork chips from the drying unit; A stirrer in the shape of a hollow column, having an inlet with one side selectively opened and an outlet with the other side selectively opened, into which dried cork chips are input from the hopper; a thermoplastic resin supply unit supplying a liquid thermoplastic resin heated to 150° C. or higher into the agitator; a cold air supply unit for cooling the thermoplastic resin-coated cork chips by providing cold air of -5°C or less into the agitator; a particle size sorting unit for sorting the cork chips discharged from the outlet of the stirrer by particle size; and one or more storage units respectively storing the sorted cork chips by particle size.

The drying unit may dry the input cork chips to a moisture content of 8 to 15%.

A lid disposed at each of the inlet and the outlet, and opening and closing of the inlet and the outlet may be opposite to each other.

The drying unit may be positioned to be spaced apart from the agitator in a vertical direction, and cork chips supplied from the drying unit may fall into the hopper by gravity.

a first connection unit connecting the stirrer and the thermoplastic resin supply unit; A second connection portion connecting the stirrer and the cold air supply unit and disposed below the first connection portion may be included.

The thermoplastic resin may be a polyvinyl acetate resin series.

In order to achieve the object of the present invention as described above, a continuous coating method for cork chips according to an embodiment of the present invention includes: (a) preparing cork chips by cutting and drying the endothelium of cork to a predetermined size; (b) preparing a liquid thermoplastic resin by heating the thermoplastic resin; (c) putting the cork chips into a stirrer; (d) coating the cork chips by supplying and spraying the thermoplastic resin prepared in step (b) into the stirrer; (e) cooling and curing the coated thermoplastic resin by supplying cold air to the coated cork chips after step (d); (f) discharging cork chips from the stirrer after step (e); (g) sorting the cork chips discharged after step (f) by particle size; and (h) storing the cork chips by particle size after step (g).

In step (a), the moisture content of the cork chips may be 8 to 15%.

In step (b), the thermoplastic resin may be heated to 150° C. or higher.

In the step (e), the cold air may be -5°C or less.

In order to achieve the object of the present invention as described above, the permeable base layer block coated with cork chips manufactured using the continuous coating method of cork chips according to an embodiment of the present invention is installed on top of the ground and absorbs and permeates A block body in which pores are formed to enable bottom ash, recycled aggregate, cement, fly ash, and water to be mixed and stirred, and a concrete composition having a water permeability having a porosity of 30% or more and an absorption rate of 5% or more is accommodated; a polymer pavement layer including aggregate and a hardening material applied to the aggregate and stacked on top of the block body; and a cork layer disposed on the polymer pavement layer, wherein the polymer pavement layer comprises: a permeable silica sand polymer base layer laminated on the block body and having porosity of a predetermined size; and a surface layer of the permeable silica sand polymer layer laminated on the upper part of the permeable silica sand polymer base layer and formed of particles smaller than the permeable silica sand polymer base layer.

The polymer pavement layer may include: a first urethane polymer coating layer laminated between the base layer of the permeable silica sand polymer and the surface layer of the permeable silica sand polymer; and a second urethane polymer coating layer laminated between the surface layer of the permeable silica sand polymer and the cork layer.

The concrete composition may have a compressive strength of 5 MPa or more.

It may further include a planarization layer positioned between the block body and the surface layer in order to constantly adjust the surface height of the polymer pavement layer.

The block body may include a synthetic resin structure having a network structure including a plurality of pores.

The synthetic resin structure includes a side wall having one or more concave fastening grooves formed on an outer surface; and a fastening member inserted into the fastening groove to connect one synthetic resin structure to another synthetic resin structure.

The fastening groove, the width of the fastening groove increases as it goes into the side wall from the outer surface of the side wall, and the width of the fastening groove decreases from the upper side of the side wall to the lower side, and the fastening member is in contact with each other The width of the fastening member is inserted into the pair of fastening grooves, and the width of the fastening member increases toward both ends of the fastening member in the arrangement direction of the pair of synthetic resin structures abutting each other, and the width of the fastening member goes downward of the fastening member. this may decrease

The synthetic resin structure includes a plurality of support pillars spaced apart from each other by predetermined intervals in a space surrounded by the side walls; and a cover coupled to upper portions of the plurality of support pillars and partitioning upper ends of the plurality of unit structures.

Cork chip continuous coating device and method according to the present invention can increase the productivity of the product by preventing clogging of the transfer device or pipe by simplifying the device and method.

In addition, the cork chip continuous coating apparatus and method according to the present invention can greatly improve the production rate per unit time by simplifying the process, and can significantly lower the product production cost, making it easy for mass production.

In addition, the permeable base block manufactured using the cork chip continuous coating apparatus and method according to the present invention uses natural cork chips, so it is environmentally friendly and harmless to the human body because it does not contain heavy metals and endocrine disruptors. And it is easy to drain, and the cork chips can partially repair the infiltrated rainwater.

In addition, the permeable base layer block manufactured using the cork chip continuous coating apparatus and method according to the present invention can improve groundwater quality and preserve groundwater due to water permeability, drainage and water retention, can reduce the urban heat island effect, and reduce fine dust. can reduce

In addition, the present invention is easy to install the permeable base block, so the construction period of the permeable base block can be greatly reduced, and thus, the eco-friendliness is increased in the section where the permeable base block is newly installed, and the inconvenience of citizens during the curing period can be minimized. In the case of new construction in narrow trails such as forests or parks, cork? packaging can be created.

In addition, the permeable base block manufactured using the cork chip continuous coating apparatus and method according to the present invention is used for road pavement due to the physical properties and adhesive strength of the cork chip itself, and has excellent durability such as tensile strength, elongation and hardness, , It is easy to flatten, can prevent lifting and bending of the packaging material, and has excellent friction resistance and water permeability, so that the surface pores are not clogged, preventing water impermeability, so that it can be used without deformation for a long time.

1 is a schematic conceptual diagram of a continuous coating device for cork chips according to an embodiment of the present invention.
Figure 2 is a flow chart showing a continuous coating method for cork chips according to an embodiment of the present invention.
3 is a cross-sectional view conceptually showing a water permeable substrate block in which cork chips are packaged using the continuous coating method for cork chips according to an embodiment of the present invention.
4 is a perspective view conceptually showing a water permeable substrate block in which cork chips are packaged using the continuous coating method for cork chips according to an embodiment of the present invention.
5 is a perspective view conceptually showing a block body in a water permeable base layer block coated with cork chips manufactured using the continuous coating method for cork chips according to an embodiment of the present invention.
Figure 6 is a bottom perspective view of Figure 5;
7 is a perspective view conceptually showing a combination of a plurality of block bodies in a permeable base layer block coated with cork chips manufactured using the continuous coating method for cork chips according to an embodiment of the present invention.
8 is a perspective view showing another embodiment of FIG. 7 .
9 to 11 are views showing an example of a permeable base layer block in which cork chips are packaged using the continuous coating method for cork chips according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, in describing an embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function hinders understanding of the embodiment of the present invention, the detailed description will be omitted.

Also, terms such as first, second, A, B, (a), and (b) may be used to describe components of an embodiment of the present invention. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term. When an element is described as being “connected,” “coupled to,” or “connected” to another element, that element may be directly connected or connected to the other element, but there may be another element between the elements. It should be understood that may be "connected", "coupled" or "connected".

Hereinafter, a cork chip continuous coating device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a schematic conceptual diagram of a continuous coating device for cork chips according to an embodiment of the present invention.

Referring to FIG. 1, the cork chip continuous coating apparatus according to an embodiment of the present invention includes a drying unit 10, a hopper 20, an agitator 30, a thermoplastic resin supply unit 40, a cold air supply unit 50, a particle size A selection unit 60 and a storage unit 70 may be included.

The drying unit 10 accommodates cork chips cut according to the user's intention, and the cork chips can be dried. At this time, it is preferable that the drying unit 10 dries the input cork chips to a moisture content of 8 to 15%. The drying unit 10 may be spaced apart in the vertical direction of the agitator 30 to be described later, that is, upward. Cork chips supplied from the drying unit 10 may fall by gravity into a hopper 20 described later.

The hopper 20 may receive the dried cork chips from the drying unit 10 and guide the received cork chips to an agitator to be described later. Hopper 20 may be a truncated conical shape of the upper and lower narrow (上廣下狹) such as a funnel.

The agitator 30 may have a hollow columnar shape. One side of the agitator may be formed with an inlet 31 that is selectively opened, and the other side of the agitator may be formed with an outlet 33 that is selectively opened. In the agitator 30 , the dried cork chips may be inputted from the hopper 20 .

A first lid 32 may be disposed at the inlet 31 of the agitator 30, and a second lid 34 may be disposed at the outlet 33 of the agitator 30. For reference, the "enclosed stirrer" may be attached to an opening and closing device and may be fluidly connected to other components, so that solid or liquid substances may be moved, but it may be controlled according to the user's intention, It means an agitator that can be sealed by closing the inlet 31 and the outlet 33 with the first lid 32 and the second lid 34 in case of sealing.

The first lid 32 and the second lid 34 are attached to the top and bottom of the agitator 30, respectively, and when the inlet 31 is opened, the outlet 33 is closed and the inlet 31 is closed. When the discharge port 33 can be opened. That is, the first cover 32 and the second cover 34 may be operated so that the opening and closing of the inlet 31 and the outlet 33 are opposite to each other.

When the inlet 31 of the agitator 30 is opened, dried cork chips stored and stored in the drying unit 10 are introduced. The shape of the drying unit 10 is not particularly limited, but an openable opening (not shown) is formed on one side, and when the closed opening is opened, the cork chips pass through the hopper 20 below by gravity. It may fall into the inlet of the agitator 30 and enter into the agitator 30 .

The thermoplastic resin supply unit 40 may accommodate the thermoplastic resin and supply the thermoplastic resin accommodated in the agitator 30 . At this time, it is preferable that the thermoplastic resin is heated to 150° C. or higher. For reference, the thermoplastic resin supply unit 40 is connected to the agitator through the first connection unit 41, and the thermoplastic resin injected into the agitator 30 is sprayed or sprayed to coat the cork chips inside the agitator 30. there is.

The cold air supply unit 50 may provide cold air to the inside of the agitator 30 . At this time, the cold air is preferably at a temperature of -5 ° C or less. The cold air supply unit 50 and the agitator 30 are connected through the second connection unit 51, and the cold air supplied to the agitator 30 may cool the cork chips coated with the thermoplastic resin. That is, the thermoplastic resin coated on the cork chip can be easily cured through low-temperature wind.

For reference, in one embodiment of the present invention, a refrigeration circuit for circulating a cold air refrigerant may be built in, and the temperature may be cooled by exchanging heat between the low-temperature refrigerant gas generated in the refrigeration circuit and the circulating liquid. In addition, when heating the temperature while handling a large amount of exchanged heat compared to the thermoelectric element method, a method of exchanging heat with a high-temperature refrigerant gas generated in the refrigeration circuit may be allowed or an electric heater may be used in combination. Here, according to the cooling method of the condenser, it can be divided into an air-cooled type and a water-cooled type.

The particle size sorting unit 60 may sort the cork chips discharged from the outlet 33 of the agitator 30 by particle size. The particle size selection unit 60 may be a filter member of a mesh type or may be a device capable of selecting a particle size of a predetermined size.

Cork chips having a cooled and cured coating layer are finished in the final step of sorting, and sorting can begin while being transferred to the particle size sorting unit disposed below the agitator 30. The particle size sorting unit 60 typically generates vibrations and can be divided into three categories: “required particle size”, “smaller particle size than the required particle size”, and “larger particle size than the required particle size”.

The storage unit 70 may store the cork chips selected by the particle size selection unit 60 for each particle size. The storage unit 70 may have a plurality of spaces, and when the cork chips are divided by particle size, they may be stored in a corresponding space among the plurality of spaces according to the user's intention.

As such, in the continuous coating device for cork chips, the drying unit 10, the hopper 20, the agitator 30, the particle size selection unit 60, and the storage unit 70 are arranged in a vertical direction at intervals according to the user's intention. , After coating the surface of the cork chips falling from the drying unit 10 using one stirrer 30 and then curing, it can be immediately classified by particle size and stored.

Through this manufacturing device, it is possible to minimize the clogging phenomenon that occurs in the conventional complex conveying device (piping), and through components arranged in the vertical direction, it is possible to provide a fast and continuous cork chip manufacturing device. .

Figure 2 is a flow chart showing a continuous coating method for cork chips according to an embodiment of the present invention.

Referring to FIG. 2, the continuous coating method for cork chips according to an embodiment of the present invention includes (a) cork chip manufacturing step (S10), (b) thermoplastic resin manufacturing step (S20), (c) cork chip inputting step ( (S30), (d) cork chip coating step (S40), (e) coating cooling step (S50), (f) cork chip discharging step (S60), (g) cork chip particle size selection step (S70), and (h) ) may include a cork chip storage step (S80).

(a) In the cork chip manufacturing step, the cork endothelium is cut into a predetermined size according to the user's intention and dried to manufacture cork chips (S10).

First of all, cork is a natural material that is familiar with nature and has many pores in itself, so it can be presented as a way to solve various current problems. Cork expands due to moisture, so if it is used without going through a processing process, it swells due to volume expansion and separates from the floor when it rains. Cork expands with moisture and is used as a lid for an airtight container, or as a raw material for products that require airtightness such as waterproofing or gaskets by using the airtightness of the cell itself. It can be used as a material beneficial to the human body by emitting negative ions and far-infrared rays.

In step (a), the drying unit 10 dries the cork chips. At this time, the moisture content of the cork chips may be 8 to 15%.

In general, the relationship between moisture content occurs when a thermosetting resin (moisture curing type resin) is used, unlike the case of using a thermoplastic resin described later, and curing time is shortened in the presence of moisture, so there may be problems in producing the required processed product.

In the present invention, when the moisture content is too low and is less than 8%, the above-mentioned effect of cork chips cannot be exhibited properly, so the lower limit is preferably 8%.

In step (b), a thermoplastic resin is prepared (S20). The manufactured thermoplastic resin may be stored in the thermoplastic resin supply unit 40 . In this case, the thermoplastic resin may be in a liquid state heated to 150° C. or higher. The heat of 150 ℃ is required to obtain liquid resin, and when the liquid resin is cured again and laid as a paving type flooring material, it is the lower limit of the temperature considering the deformation at high temperature in consideration of the summer temperature.

In one embodiment of the present invention, a vinyl polymerization-based (general purpose resin) resin is used as a thermoplastic resin, and a polyvinyl acetate resin-based resin may be used. Vinyl resins can be used for paints and adhesives.

In step (c), cork chips are put into the agitator 30 (S30). Cork chips dried in the drying unit 10 may fall due to gravity as an opening (not shown) formed to be opened and closed at one side of the drying unit 10 is selectively opened and closed. A hopper 20 may be disposed below the drying unit 10 and spaced apart from the drying unit 10 , and a stirrer 30 may be disposed below the hopper 20 and spaced apart from the hopper 20 . Accordingly, the cork chips falling from the drying unit 10 are temporarily accommodated in the hopper 20, and may be guided by the hopper 20 to be put into the agitator 30. At this time, the first lid 32 disposed at the inlet 31 of the agitator 30 is opened, the internal space of the agitator 30 communicates with the outside, and the second lid disposed at the outlet 33 of the agitator 30 (34) can be closed and serve as a bottom to support the cork chips falling to the agitator (30).

In step (d), the cork chips are coated (S40). The liquid thermoplastic resin prepared in step (b) is sprayed and coated on the cork chips introduced into the agitator 30. At this time, the thermoplastic resin may be moved from the thermoplastic resin supply unit 40 to the agitator 30 through the first connection unit 41 and sprayed. That is, the liquid thermoplastic resin is sprayed so as to be coated on the surface of the cork chip, and the stirrer 30 is operated to apply an agitating force to the cork chip so that the surface of the cork chip can be coated within a predetermined thickness range.

In step (e), the coating layer coated on the cork chip after step (d) is cooled by supplying cold air (S50). That is, the cork chip is supplied with cold air of -5° C. or less while the thermoplastic resin is coated on the surface, and the thermoplastic resin coated on the cork chip can be cooled and cured. Cool air may be moved from the cool air supply unit 50 to the agitator 30 through the second connection unit 51 .

The cold air supply unit 50 is preferably disposed at a lower position than the thermoplastic resin supply unit 40 so that the cork chips falling into the agitator 30 are cooled and cured after the thermoplastic resin is coated. For reference, one embodiment of the present invention has a built-in refrigeration circuit for circulating the cold air refrigerant, and can cool the temperature by exchanging heat between the low-temperature refrigerant gas generated in the refrigeration circuit and the circulating liquid. In addition, when heating the temperature while handling a large amount of exchanged heat compared to the thermoelectric element method, a method of exchanging heat with a high-temperature refrigerant gas generated in the refrigeration circuit may be allowed or an electric heater may be used in combination. Here, according to the cooling method of the condenser, it can be divided into an air-cooled type and a water-cooled type.

In step (f), cork chips are discharged from the agitator 30 after step (e) (S60). That is, by opening the outlet 33 by opening the second lid 34 disposed on the lower side of the agitator 30, cork chips cooled and hardened on the surface of the thermoplastic resin can be discharged.

In step (g), the cork chips discharged after step (f) are sorted by particle size (S70). A particle size sorting unit 60 may be disposed below the agitator 30 at a distance, and when the discharge port 33 is opened, the cork chips in the agitator 30 fall and move to the particle size sorting unit 60 .

The particle size sorting unit 60 sorts the discharged cork chips by particle size. The particle size selection unit 60 is not particularly limited, but may be a mesh-type filter member or a device capable of selecting particle sizes having a predetermined size. Cork chips having a desired particle size can be sorted using this device.

Cork chips in which the thermoplastic resin on the surface is cooled and hardened are finished in the sorting process, which is the last step. The sorting begins as it is moved to the sorting part in the lower step through the outlet 33 of the agitator 30, and the sorting part usually vibrates. It can be divided into three types: "Particle size required", "Particle size smaller than the required size", and "Particle size larger than the required size".

In one embodiment of the present invention, classification by particle size of cork chips can be largely classified into two types. It is divided into 2~3mm for the upper part used for laid-type flooring and 8~12mm for the lower part, but it can be used for injection and extrusion due to the characteristics of thermoplastic resin, so sorting by particle size used is a sorter It can be done in various ways depending on the screen.

In step (h), cork chips are stored for each particle size after step (g) (S80). That is, the cork chips selected for each particle size may be stored in the storage unit 70 in which a plurality of spaces are formed for each particle size. In other words, the cork chips classified by particle size may be respectively stored in a partitioned space (not shown) of the storage unit 70 located below the particle size sorting unit 60 .

The drying unit 10, the hopper 20, the agitator 30, the particle size sorting unit 60, and the storage unit 70 are arranged in a vertical direction at predetermined intervals, and drying is performed using one agitator 30. After coating the surface of the cork chips falling from the unit 10 and then cooling and hardening, they can be immediately classified by particle size and stored.

Through this manufacturing device, it is possible to minimize the clogging phenomenon that occurs in the conventional complex conveying device (piping), and through components arranged in the vertical direction, it is possible to provide a fast and continuous cork chip manufacturing device. .

Hereinafter, with reference to the accompanying drawings, a permeable substrate block coated with cork chips manufactured using the continuous coating method for cork chips according to an embodiment of the present invention will be described.

3 is a cross-sectional view conceptually showing a water permeable base block in which cork chips are packaged using the continuous cork chip coating method according to an embodiment of the present invention, and FIG. 4 is a continuous cork chip according to an embodiment of the present invention. It is a perspective view conceptually showing a water permeable base block in which cork chips manufactured using the coating method are paved.

Referring to FIGS. 3 and 4 , the permeable base block with cork chips manufactured using the continuous coating method of cork chips according to an embodiment of the present invention is installed on the ground 100, and the block body 200 and the polymer A packaging layer 300 may be included.

The block body 200 may be formed by mixing bottom ash, recycled aggregate, cement, fly ash, and water, followed by stirring, and preferably has a porosity of 30% or more and a water absorption of 5% or more. In other words, the concrete composition 220, which is lightweight, porous, and has water absorption and water permeability, is accommodated in the block body 200. The concrete composition 220 may be a material including bottom ash or recycled aggregate-based main material, cement-based binder, fly ash, water and other admixtures, pigments, and the like.

Meanwhile, in one embodiment of the present invention, the material accommodated in the block body 200 may further include a layer (not shown) of soil and/or grass. At this time, in the block body 200, soil and/or grass is poured to a thickness of about 5 to 10 cm from the surface of the block body 200, and the concrete composition 220 may be accommodated thereunder.

In describing one embodiment of the present invention, the block body 200 may include the synthetic resin structure 210, and a description thereof will be described later.

The polymer pavement layer 300 may be stacked on top of the block body 200 . The polymer pavement layer 300 may include an aggregate (not shown) and a hardening material (not shown) applied to the aggregate.

The polymer pavement layer 300 is manufactured by applying a curing material to the aggregate and then stirring it, and by providing the polymer pavement layer 300, if the aggregate of the porous concrete composition is not properly managed (eg, not washed), the adhesive strength is weakened or It can prevent problems such as detachment and discoloration, improve water permeability, improve flame resistance when calcium chloride is sprayed in winter, reduce noise and fine dust, and improve bearing capacity and bending strength. It has advantages in reducing the heat island effect and preventing flooding. In order to increase bearing capacity and water retention, the polymer pavement layer 300 may include a plurality of types of aggregate pieces having different sizes from each other.

In one embodiment of the present invention, the polymer paving layer 300 may include a permeable silica sand polymer base layer 310 and a permeable silica sand polymer surface layer 320 . The polymer pavement layer 300 includes an aggregate and a hardening material applied to the aggregate and may be stacked on top of the block body 200 . That is, the permeable silica sand polymer base layer 310 may be stacked on top of the block body 200 and may have porosity of a predetermined size.

The permeable silica sand polymer base layer 310 may be formed of pieces having a relatively large average size compared to the permeable silica sand polymer surface layer 320, and the permeable silica sand polymer surface layer 320 is located on top of the permeable silica sand polymer base layer 310 and is water permeable. It may be made of pieces having a relatively small average size compared to the pieces of the silica sand polymer base layer 310 . At this time, the average size (eg, diameter or length of one side) of the aggregate pieces constituting the permeable silica sand polymer base layer 310 may be about 10 mm, and the average size of the aggregate pieces constituting the permeable silica sand polymer surface layer 320 is It may be about 3 mm, but is not limited thereto, and can be variously changed according to the manufacturer's choice.

In addition, in one embodiment of the present invention, it is preferable that the thickness of the permeable silica sand polymer base layer 310 is larger than the thickness of the permeable silica sand polymer surface layer 320. That is, the thickness of the permeable silica sand polymer base layer 310 located at the bottom and including relatively large-sized pieces is greater than the thickness of the permeable silica sand polymer surface layer 320 located at the top and including relatively small-sized pieces can be big For example, the thickness of the permeable silica sand polymer base layer 310 may be about 20 mm, and the thickness of the permeable silica sand polymer surface layer 320 may be about 10 mm, but is not limited thereto.

A set material is positioned at least partially between the aggregate pieces constituting the permeable silica sand polymer base layer 310 and the permeable silica sand polymer surface layer 320 . For example, the hardener may be included in the form of a coating surrounding each aggregate piece of the permeable silica sand polymer base layer 310 and the permeable silica sand polymer surface layer 320 . In order to form the aggregate layer containing the hardening material, first, the aggregate pieces of a predetermined weight are dispersed in a container, the hardening material in a liquid state is applied thereon, mixed with the aggregate pieces by stirring, etc., and then left for a predetermined time. can harden. At this time, it is preferable to use the aggregate pieces after washing and drying.

In one embodiment of the present invention, the aggregate pieces may be compacted by applying vibration and/or pressure to the aggregate pieces prior to curing so that the aggregate pieces and the settable material are well mixed. In addition, during the compaction process, the aggregate pieces may be compressed in the thickness direction of the permeable silica sand polymer base layer 310 and the permeable silica sand polymer surface layer 320.

The aggregate pieces constituting the permeable silica sand polymer base layer 310 and the permeable silica sand polymer surface layer 320 may be colored natural aggregates. In addition, the amount of hardener mixed with the aggregate pieces may be adjusted according to the size of the aggregate pieces. For example, the amount of the settling material mixed with the pervious silica sand polymer base layer 310 having relatively large pieces may be reduced, and the amount of the setting material mixed with the pervious silica sand polymer surface layer 320 having relatively small pieces may be increased.

The set material surrounding the pieces of aggregate is a binding material that binds the pieces of aggregate to each other, and at the same time has a porous structure that does not fill between the pieces of aggregate, thereby facilitating pitching. For example, in one embodiment, the hardening material is vegetable polyurethane, which is a non-toxic binding material, and the hardening material may be coated on the surface of each aggregate piece as shown in the drawing by applying and stirring the vegetable polyurethane on the aggregate piece. .

In another embodiment, the curing material may include an elastomeric composition. For example, the elastomeric composition can be the reaction product of an isocyanate and an isocyanate-reactive component. Here, the isocyanate component may include polymeric isocyanates and/or isocyanate prepolymers. In addition, isocyanate-reactive components may include polyols and chain extenders.

The isocyanate prepolymer may be the reaction product of an isocyanate, a polyol and/or a polyamine, and typically may be a reaction product of an isocyanate and a polyol. Isocyanate prepolymers are formed by a variety of methods understood by those skilled in the art or can be obtained commercially from manufacturers, suppliers, and the like.

The polyol may be a hydrophobic polyol comprising one or more OH functional groups, typically two or more OH functional groups. For example, hydrophobic polyols may include natural oil polyols (NOPs) derived from any natural oil known to those skilled in the art, typically derived from vegetable or nut oils, such as castor oil, soybean oil, and seed oil. NOP derived from oil, coconut oil, peanut oil, canola oil, and the like.

Furthermore, in addition to hydrophobic polyols, it is also possible to use additional polyols, for example petroleum-based polyols. For example, the addition polyol may include ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, butane diol, glycerol, trimethylolpropane, triethanolamine, pentaerythritol, sorbitol, and combinations thereof, but is not limited thereto. not.

Chain extenders are those with two or more OH functional groups, such as alkylene glycol, dipropylene glycol (DPG), diethylene glycol (DEG), NIAX®, DP-1022, 1,3-propanediol, 1 ,4-butanediol, 1,5-pentanediol, 1,6-hexanediol and 2-butene-l,4-diol, dipropylene glycol, and the like.

In one embodiment of the present invention, an accelerator may be further applied to the aggregate pieces constituting the permeable silica sand polymer base layer 310 and the permeable silica sand polymer surface layer 320 together with the hardener. The accelerator is a material for accelerating the curing of the curing material, and may include, for example, cobalt metal soap, manganese metal soap, amino alcohol, etc., but is not limited thereto.

In the permeable base layer block in which cork chips are paved using the cork chip continuous coating method according to an embodiment of the present invention, the cork layer 400 is a polymer pavement layer 300, that is, a permeable silica sand polymer surface layer 320 can be stacked on top of

On the other hand, in one embodiment of the present invention, the first urethane polymer coating layer 311 installed on the upper part of the permeable silica sand polymer base layer 310 and the second urethane polymer coating layer 321 installed on the upper part of the pervious silica sand polymer surface layer 320 are further formed. can include

The cork layer 400 is produced by the continuous cork chip coating method through the above-mentioned cork chip continuous coating device, and the produced cork chips are gathered to form a layer. It will be replaced with the contents mentioned in the coating method.

However, since the cork layer 400 is a bar in which a plurality of cork chips are bonded by a binder, the binder can be hardened when exposed to moisture, so it is preferable to use it without moisture. In addition, in the winter season, it is preferable to form the cork layer 400 by heating to lower the viscosity of the binder to 2000 cps or less.

Referring to FIGS. 3 and 4 , one embodiment of the present invention may further include a planarization layer 500 for planarization of the permeable silica sand polymer surface layer 320 of the polymer pavement layer 300 . In the drawings, the flattening layer 500 is shown as being disposed between the block body 200 and the polymer base layer 310 of the polymer pavement layer 300, but this is only one embodiment, and the base layer 310 of the polymer paving layer 310 and the It is also possible to be disposed between the silica sand polymer surface layer 320, and if the planarization of the permeable silica sand polymer surface layer 320 disposed on the uppermost side is possible, the position may be variously changed according to the manufacturer's intention.

As described above, the block body 200 will be described in more detail below.

5 is a perspective view conceptually showing a block body in a water permeable base layer block packed with cork chips manufactured using the continuous coating method for cork chips according to an embodiment of the present invention, and FIG. 6 is a bottom perspective view of FIG. 5 7 is a perspective view conceptually showing a combination of a plurality of block bodies in a permeable base layer block coated with cork chips manufactured using the continuous coating method for cork chips according to an embodiment of the present invention, and FIG. It is a perspective view showing another embodiment of 7.

5 to 8, the block body 200 according to an embodiment of the present invention is a synthetic resin having a shape in which a plurality of unit structures 230 have a network structure and are three-dimensionally connected at the same time. structure 210 . Each unit structure 230 has a plurality of pores capable of storing rainwater while passing rainwater, and the unit structures 230 may be arranged in a one-dimensional or two-dimensional array form to constitute the synthetic resin structure 210.

Each unit structure 230 of the synthetic resin structure 210 has a side wall 214 defining an outer surface of the synthetic resin structure 210, and a plurality of supports spaced apart from each other by a predetermined interval in a space surrounded by the side wall 214. It may include a pillar 212 and a cover 213 coupled to the upper portion of the plurality of support pillars 212 to partition the top of each unit structure 230 . In addition, an opening 211 may be formed in the sidewall 214 to allow rainwater to penetrate into the pores of the synthetic resin structure 210 . The opening 211 may have a slit shape extending in one direction, but is not limited thereto.

In the pores of the synthetic resin structure 210, a lightweight, porous concrete composition 220 having water absorption and water permeability is accommodated. The support pillar 212, the cover 213, and the side wall 214 of the synthetic resin structure 210 are made of a material that is easy to deform while having a low weight, and may be made of, for example, polyethylene (PolyEthylene; PE). , but is not limited thereto. By using this type of synthetic resin structure 210, the block body 200 can be formed in any shape suitable for the place where the present invention is to be installed.

For example, the synthetic resin structure 210 may be configured such that the unit structure 230 forms an array of 150 to 200 units horizontally and 400 to 500 units vertically on a plane. In addition, the synthetic resin structure 210 may be formed by stacking the unit structures 230 in the vertical direction so that the aforementioned planar array forms 5 to 15 layers vertically. However, this is just an example, and the shape of the array formed by the unit structures 230 in the synthetic resin structure 210 may vary according to the manufacturer's choice.

The sidewall 214 of the synthetic resin structure 210 includes one or more concave fastening grooves 216 on an outer surface, and the fastening member 250 or the outer wall support 260 may be coupled to the fastening groove 216. The fastening member 250 includes a body 251 to be inserted into the fastening groove 216 and a cover 252 covering the top of the body 251, and is inserted into the fastening groove 216 to form a synthetic resin structure 210 It plays a role in bonding and connecting other synthetic resin structures. Meanwhile, the outer wall support 160 serves to block the fastening groove 116 that is not coupled with other synthetic resin structures in the synthetic resin structure 110 .

The bottom plate 215 of the synthetic resin structure 210 forms the bottom surface of the air gap of the synthetic resin structure 210 . In one embodiment, the bottom plate 215 is composed of a plurality of divided plates corresponding to each unit structure 230 of the synthetic resin structure 210, and may define the bottom surface of each unit structure 230. Like the support pillar 212, cover 213, and sidewall 214, the bottom plate 215 may also be made of PE, but is not limited thereto. One or more holes 240 are formed in each bottom plate 215 to allow moisture to penetrate into the pores of the unit structure 230 from below the block body 200 .

Referring to FIG. 7 , a synthetic resin structure composed of unit structures 230 in a block body 200 in a water permeable base layer block packed with cork chips manufactured by using the continuous coating method for cork chips according to an embodiment of the present invention. 210 may be combined with another synthetic resin structure 210 using a fastening member 250 . For fastening with the fastening member 250, the sidewall 214 of the synthetic resin structure 210 includes one or more fastening grooves 216. In order to prevent the fastening member 250 from being easily separated after being fastened to the fastening groove 216, the fastening groove 216 may have a shape in which the width of the groove increases while going inside compared to the outer surface of the side wall 214. there is. In addition, the fastening groove 216 may have a shape in which a width decreases from the top to the bottom while extending in a vertical direction from the bottom to the top of the side wall 214 .

A pair of synthetic resin structures 210 having fastening grooves 216 having such a shape are disposed adjacent to each other, and each synthetic resin structure 210 is in contact with the fastening grooves 216 formed on the side walls 214 of each synthetic resin structure 210. The fastening member 250 may be commonly inserted into the fastening groove 216 of the structure 210 . That is, the fastening member 250 has a cross-sectional shape corresponding to the pair of fastening grooves 216 facing each other. Since each fastening groove 216 has a small width on the outer surface of the synthetic resin structure 210 and a large width on the inner side, the fastening member 250 has a shape in which the width is small in the middle and the width increases at both ends correspondingly. have In addition, since the width of the fastening groove 216 decreases downward, the fastening member 250 has a wedge shape in which the width narrows downward so as to be inserted into the fastening groove 216 .

By using the fastening groove 216 and the fastening member 250 having such a shape, it is possible to strengthen the bonding force between the synthetic resin structures 210 and firmly couple the synthetic resin structures 210 to each other. However, this is just an example, and the shape of the fastening member or fastening groove for use in the water permeable base layer block according to one embodiment of the present invention is not limited thereto.

Meanwhile, FIG. 8 is another embodiment of FIG. 7 , in which a plurality of fastening grooves 216 exist, and the above-mentioned content will be applied mutatis mutandis.

Referring to FIG. 8 , the concrete composition 220 accommodated in the pores of the block body 200 includes a large number of pores therein to allow penetration and retention of rainwater. The concrete composition 220 of this type may be formed by mixing bottom ash, recycled aggregate, cement, and fly ash and then stirring. More specifically, bottom ash, recycled aggregate, cement, fly ash, pigment, admixture, etc. may be further supplied to the cement mixing tank. Bottom ash, recycled aggregate, cement, fly ash, and water are stirred in a cement mixing tank to obtain a porous concrete composition 120, which may be collected in a stirring tank at the bottom of the cement mixing tank.

Since the method for producing the porous concrete composition 220 is disclosed in detail in Patent Registration No. 10-1272626, which has been applied for and registered by the present applicant and inventor, detailed description thereof will be omitted herein.

In one embodiment of the present invention, the porous concrete composition 220 accommodated in the pores of the block body 200 has a compressive strength of 5 MPa or more to obtain excellent water permeability and water retention performance. And in one embodiment of the present invention, the porous concrete composition 220 has a water absorption rate of 20% or more. In addition, in one embodiment of the present invention, the porous concrete composition 220 has a porosity of 30% or more. Furthermore, in one embodiment of the present invention, the porous concrete composition 220 has a water permeability coefficient of 1.0×10 ^-1 cm/s or more. In order for the porous concrete composition 220 to have these properties, the ratio of bottom ash, recycled aggregate, fly ash, water and cement, and their stirring speed, etc., which are introduced during stirring to create the porous concrete composition 220, are appropriately adjusted. can

Meanwhile, rainwater may permeate into the block body 200 in the permeable base layer block in which the cork chips manufactured using the continuous coating method for cork chips according to the embodiment of the present invention are paved. In addition, rainwater may penetrate the synthetic resin structure 210 of the mesh structure 210 through the synthetic resin structure 210 of the block body 200 or through the hole 240 formed in the cover of the synthetic resin structure 210 . Since the porous concrete composition 220 is accommodated in the mesh structure synthetic resin structure 210, the concrete composition 220 can provide a storage space for rainwater.

Due to the network structure of the synthetic resin structure 210 and the porous concrete composition 220, the block body 200 can purify rainwater. Rainwater penetrating into the block body 200 flows into the ground 100 under the block body 200 after a purification action, and may flow into soil and rivers through the ground 100. Therefore, the water circulation function can be secured by the block body 200.

The block body 200 may retain rainwater in the storage space provided by the porous concrete composition 220 . Then, when it is dry or/or the temperature is high, the rainwater retained in the block body 200 may be naturally evaporated to the outside, and as a result, the effect of reducing the temperature of the road surface can be obtained. In addition, moisture penetration from the lower ground 100 to the block body 200 may occur, and the moisture penetrated in this way may also be evaporated naturally by the above-described process.

The permeable base block coated with cork chips manufactured using the cork chip continuous coating method according to the present invention described above has been described with an emphasis on the part corresponding to the border of the sidewalk, but is not limited thereto, and is not limited thereto, but is not limited to bridges, median strips of roads, speeding It can be applied to all facilities of pedestrian roads such as barriers.

9 to 11 are photographs showing an embodiment of a permeable base layer block coated with cork chips manufactured using the continuous coating method for cork chips according to an embodiment of the present invention.

What has been described above is only an embodiment for carrying out the cork chip continuous coating apparatus and method according to the present invention and the water permeable base block in which the cork chips manufactured using the same are packed, and the present invention is not limited to the above embodiment. , Without departing from the gist of the present invention claimed in the following claims, anyone with ordinary knowledge in the technical field to which the present invention belongs will say that there is a technical spirit of the present invention to the extent that it can be practiced by making various changes.

10: drying unit 20: hopper
30: agitator 31: inlet
32: first lid 33: outlet
34: second lid 40: thermoplastic resin supply unit
41: first connection part 50: cold air supply part
51: second connection unit 60: particle size selection unit
70: storage unit
100: ground 200: block body
210: synthetic resin structure 211: opening
212: support pillar 213: cover
214: side wall 215: bottom plate
216: fastening groove 220: concrete composition
230: unit structure 240: hole
250: fastening member 251: body
252: cover 260: outer wall support
300: polymer pavement layer 310: permeable silica sand polymer base layer
311: first urethane polymer coating layer 320: permeable silica sand polymer surface layer
321: second urethane polymer coating layer 400: cork layer
500: planarization layer

Claims (8)

It is installed on the top of the ground, and pores are formed to enable absorption and permeability. It is formed by mixing bottom ash, recycled aggregate, cement, fly ash, and water and then stirring, and has a porosity of 30% or more and an absorption rate of 5% or more. A block body in which a concrete composition having is accommodated;
a polymer pavement layer including aggregate and a hardening material applied to the aggregate and stacked on top of the block body; and
a cork layer disposed on top of the polymer pavement layer;
including,
The polymer packaging layer,
a permeable silica sand polymer base layer laminated on the block body and having porosity of a predetermined size; and
a surface layer of a permeable silica sand polymer layer laminated on an upper portion of the permeable silica sand polymer base layer and formed of particles smaller than the permeable silica sand polymer base layer;
A permeable substrate block packed with cork chips comprising:
According to claim 1,
The polymer packaging layer,
a first urethane polymer coating layer laminated between the base layer of the permeable silica sand polymer and the surface layer of the permeable silica sand polymer; and
a second urethane polymer coating layer laminated between the permeable silica sand polymer surface layer and the cork layer;
A permeable substrate block packed with cork chips further comprising:
According to claim 1,
The concrete composition is a permeable base block packed with cork chips having a compressive strength of 5 MPa or more.
According to claim 1,
a flattening layer positioned between the block body and the surface layer to constantly adjust the surface height of the polymer pavement layer;
A permeable substrate block packed with cork chips further comprising:
According to claim 1,
The block body,
A synthetic resin structure having a network structure including a plurality of pores;
A permeable base block in which cork chips are packed, comprising:
According to claim 5,
The synthetic resin structure,
A side wall having one or more concave fastening grooves formed on an outer surface; and
a fastening member inserted into the fastening groove to connect one synthetic resin structure to another synthetic resin structure;
A permeable substrate block packed with cork chips further comprising.
According to claim 6,
The fastening groove,
The width of the fastening groove increases from the outer surface of the side wall to the inside of the side wall, and the width of the fastening groove decreases from the upper side to the lower side of the side wall,
The fastening member,
It is inserted into the pair of fastening grooves that are in contact with each other, and the width of the fastening member increases toward both ends of the fastening member in the arrangement direction of the pair of synthetic resin structures that are in contact with each other. Permeable substrate blocks packed with cork chips of decreasing width.
According to claim 6,
The synthetic resin structure,
a plurality of support pillars spaced apart from each other by predetermined intervals in the space surrounded by the side walls; and
a cover coupled to upper portions of the plurality of support pillars and partitioning upper ends of the plurality of unit structures;
A permeable base block in which cork chips are packed, comprising:

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