KR20150063653A - Method of Light Charcoal-embedded Loess Board Production - Google Patents

Abstract

The present invention relates to light weight type loess interior and exterior materials wherein charcoal is embedded and a method for manufacturing the same and, more specifically, provides new light weight type loess interior and exterior materials wherein charcoal is embedded, which are light weight, have more improved strength, and have more beautiful appearance as a micro-crack generated in a dry process or a plastic process is not generated.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a method for producing lightweight yellow clay interior and exterior materials having charcoal,

The present invention relates to a clay interior / exterior material in which charcoal is embedded by carbonizing the mixed wood in the course of firing, and a method for producing the same.

Particularly, the present invention relates to a method for producing a coarse aggregate of yellow coal having a charcoal in a plate form, which is free of cracks due to surface cracks occurring in the production step, in particular during drying and calcination, And to provide a method for manufacturing the same.

According to the present invention, there is provided a clay interior / exterior material having a new charcoal, which is excellent in dimensional stability because the surface is smooth and the strength is sufficiently strong so that even when it is produced in the form of a thin plate, can do.

In addition, the present invention improves product strength even when using Ilite or kaolin, and significantly reduces the thickness and weight of the product, while enhancing the flatness and smoothness of the product. As a result, The present invention relates to a manufacturing method of an environmentally friendly interior and exterior material and a product thereof.

Typically, the walls or ceilings of a building are finished using cement, paint, wallpaper, wood, gypsum board, and the like. However, cement, paint, wallpaper and the like contain various toxicities, which cause respiratory and dermatological diseases, and have no humidity control ability. In the case of wood, there is a problem that it is weak in moisture and easily deformed and is highly inflammable. The gypsum board is also limited in heat insulation and ventilation, and has many problems due to harmful components to the human body.

In order to solve such a problem, in recent years, interior and exterior materials using yellow earth as a main material have been widely used for finishing walls and the like. For example, the method using ocher mortar is a method of drying oval-shaped loess on a floor, a ceiling or a wall surface of an ocher, a loess cabin, or the like, or by extrusion molding a predetermined shape, And the like are used.

However, these techniques are liable to cause cracking due to water expansion and shrinkage in the loess and have a weak strength, which is a limitation in construction interior and exterior materials. Korean Patent Publication No. 2007-0101649 discloses a method for producing an ocher board by impregnating an ocher with impurities and impregnating the impurities with a pressurized pressure to form a standardized square shape and compression molding to a thickness of 10 to 20 mm, Has been proposed to improve strength.

Korean Patent Registration No. 0774087 by the present applicant has disclosed a yellow coal charcoal board in which wood powder is carbonized into charcoal by mixing wood powder with yellow powder, pressing it, and then firing at 650 to 900 degrees.

In particular, the yellow coal charcoal board according to the Korean Patent No. 0774087 is characterized in that: i) a dry-type charcoal board having a moisture content of 5 to 12% is minimized, unlike the wet-extrusion molding method using ocher mortar having a moisture content of 20 to 40% - As a press molding method, the drying time is greatly reduced, ii) the water content is reduced, and the press molding is easy, and mass production is possible. In addition, iii) the method of making the ocher board by mixing and drying only, the ocher board is manufactured through the firing process, iv) the external char is completely burned, and there is no fear of the charcoal being buried from the surface of the ocher board, (V) good effect of the loess and charcoal (far-infrared ray emission, air purification, deodorization, humidity control, etc.) are satisfied at the same time due to the core shell structure charcoal formed inside.

However, the above-mentioned conventional yellow board containing charcoal is ordinarily used at a size of about 300x300x30 mm. This is because, when a board having a large area or a thin plate having a thin thickness is manufactured according to the properties of the material such as the blend or specific gravity of the raw material, various problems may be caused.

That is, when a board having a relatively small area of about 300 mm x 300 mm according to the conventional manufacturing method is molded to a thickness of 8 mm or less, the strength is lowered, and cracks or cracks are likely to occur during press molding, drying and firing.

FIG. 8 is a reference view showing that a bumpy pattern has occurred in a yellow earth board according to a conventional technique. FIG. 8 (a) is a schematic representation of a board being warped in a long-term storage process, and FIG. 8 (b) is a schematic view showing a state in which a board is warped as moisture flows in and out, FIG. Normally, the loess board is applied after applying an eco-friendly adhesive on the wall.

In particular, referring to FIG. 8, it can be seen that the deterioration of the flatness or smoothness of the surface of the loess board is a serious problem. When the flatness of the interior and exterior materials for finishing is lowered to cause warping, bending, or the surface is uneven and the smoothness is lowered, it is impossible to properly adhere and the appearance is considerably reduced. Even if there is no warping at the time of construction, if warping occurs in the process of humidity outflow of the inner and outer clay materials over time after the construction, adhesion detachment phenomenon occurs, Element.

Furthermore, in order to improve the indoor air quality, ceiling construction is required. When a large number of small area boards are installed on a ceiling, construction time and manpower consumption are large. When a board having a relatively large area of about 300x600 mm is manufactured for convenience of installation, the thickness of the board is increased as compared with the case of the small area board, and bending and cracking occur more frequently as the time elapses.

That is, the conventional products are too thick and heavy to be difficult to transport and construct when stacking a large number of boards, and they are used only for a wall, and there is a limit to use for ceiling construction. In addition, even if the thickness becomes thin, flatness such as occurrence of warpage and surface smoothness are lowered, and there are limitations in construction and after-care, and there are scattered problems that are not excellent in aesthetic satisfaction and strength, and micro cracks occur.

In order to solve the above-described problems, the present applicant has added a wire mesh or the like to the inside as disclosed in Korean Patent No. 0774087. However, this is not only an unnecessary process in the process, but also a beneficial effect This is nothing but an arrangement that does not matter.

Therefore, in order to solve such a problem, it has been intensively studied, as a result of intensive researches, that even in the case of using lignite, kaolin and wood flour together with yellow loess at the same time to produce a thin plate shape while maintaining weight and strength, The present invention has been accomplished on the basis of the findings that it is possible to produce a core shell-structured clay interior / exterior material having charcoal, which is remarkably superior to conventional products, by maintaining the flatness and smoothness even after the firing step and after the firing step.

The present invention aims at providing a method and a product for producing a clay interior and exterior material having i1) a weight and a thickness significantly reduced and ii) a flatness and a smoothness which are excellent in a conventional loess interior material containing charcoal. Iii) to improve the compressive strength of the clay interior and exterior materials with charcoal, iv) to have outstanding ease of ceiling construction as well as for floor and wall, and v) It is intended to provide environmentally friendly products.

      The present invention also relates to a method for producing a charcoal of the present invention, comprising the steps of: preparing a charcoal containing a charcoal of a plate shape, the charcoal containing a charcoal having no cracks generated in the production step, And to provide a method for producing the same.

 Further, the present invention provides a clay interior / exterior material having a new charcoal which is excellent in dimensional stability since the surface is beautiful and the strength is sufficiently strong so that even when it is produced in the form of a thin plate, the surface is curved and not twisted. .

In addition, the present invention improves the product strength even when using Ilite, kaolin, wood powder, etc., and significantly reduces the thickness and weight, while enhancing the flatness and smoothness, Board and the like, and a product thereof.

  In order to solve the above problems, the present invention provides a method for producing a green sheet, comprising drying and firing a composition comprising 20 to 100 parts by weight of ilite, 5 to 20 parts by weight of kaolin and 10 to 45 parts by weight of wood powder, , It was possible to provide the clay interior and exterior material having the charcoal having improved strength.

   In another embodiment of the present invention, when the composition further comprises 0.0001 to 1 part by weight of a lactate-based binder relative to 100 parts by weight of the loess, the mixture of the loess internal and external materials with charcoal . ≪ / RTI >

   Further, in the present invention, when the above-mentioned embodiment of the invention further contains 0.001 to 2 parts by weight of aluminum hydroxide per 100 parts by weight of the loess, especially when the above-mentioned lactite-based binder and aluminum hydroxide are used together, It was found that warpage and twisting were prevented during firing, and thus it was possible to provide a clay interior and exterior material having excellent charcoal.

   The present invention also provides a method for producing the clay interior / exterior material with the charcoal of the present invention.

   That is, a composition mixing step (S10) of mixing a composition containing loess, ilite, kaolin and wood and water; A forming step (S40) of forming the composition into a molded body; Drying the molded body (S50); And a sintering step (S60) of heating the dried formed body to a temperature of 650 to 890 DEG C, wherein the external wood powder is completely burned by the above step, and the wood powder therein is charcoal- . In the present invention, the external wood is completely burnt and the internal wood is made of char, can be easily manufactured by appropriately adjusting the temperature, thickness and time.

   In the present invention, the composition mixing step (S10) comprises mixing charcoal mixed with water at a blending ratio of 20 to 100 parts by weight of daily light, 5 to 20 parts by weight of kaolin and 10 to 45 parts by weight of wood powder, The present invention also provides a method for producing a clayey interior / exterior material, which comprises adding 0.0001 to 1 part by weight of a lactate-based binder to 100 parts by weight of the clayeye in the composition mixing step, or simultaneously or separately from 0.001 to 2 The present invention also provides a method for manufacturing a clay interior / exterior material containing aluminum hydroxide.

  Further, the present invention further includes a pre-forming drying step (S30) of drying the composition until the moisture content reaches 5 to 12 wt% before the press forming step (S40) And the composition mixing step (S10) may provide a method for manufacturing the clay interior / exterior material having charcoal which is stirred and pulverized by using a ball mill if necessary. Further, the present invention may further comprise a pressure filtration step (S20) after the composition mixing step (S10), wherein the pressure filtration step (S20) includes a filtration cake formation step of forming a filtration cake by pressurizing the pulverized composition with a filter press Step S21; Aging step (S22) before crushing to dry the filter cake; And a pulverizing step (S23) of pulverizing the filter cake to form a powder.

In the present invention, various molded articles can be produced. For example, the molded articles can be produced in the form of a block, a disc, a plate, or the like. Particularly, in the case of producing a plate in the present invention, it can be manufactured to have a thickness of 3 to 10 mm, more preferably, a plate having a thickness of 5 to 8 mm by using a press mold machine. Even in such a thin plate, cracks or cracks It is possible to produce a plate-shaped molded article of excellent quality which does not cause warping or bending even after firing.

The preferred embodiment of the present invention is characterized in that 20 to 100 parts by weight of sunlight, 5 to 20 parts by weight of kaolin, 10 to 45 parts by weight of wood powder, 0.001 to 2 parts by weight of aluminum hydroxide and 0.001 to 2 parts by weight of aluminum hydroxide, And 1 part by weight of water, and water, and drying and firing the composition.

  More particularly, the present invention relates to a process for preparing a composition comprising: mixing a composition comprising yellow loess, ilite, kaolin and wood flour together with water; A molding step of producing the composition as a molded body; Drying the molded body; And a firing step of heating the dried formed body to a temperature of 650 to 890 캜, wherein the external wood powder is completely burned by the firing step, and the wood powder inside is made of charcoal. A manufacturing method is disclosed.

Preferably, the composition is mixed with water at a blending ratio of 20 to 100 parts by weight of the daily light, 5 to 20 parts by weight of kaolin, and 10 to 45 parts by weight of wood powder, based on 100 parts by weight of the loess.

The present invention may further comprise a lactate-based binder in an amount of 0.0001 to 1 part by weight based on 100 parts by weight of the yellow clay in the composition mixing step, or simultaneously or separately from 0.001 to 2 parts by weight of aluminum hydroxide per 100 parts by weight of the loess And a method for manufacturing a built-in clay interior and exterior material. Particularly, the reason is not known as a bonding agent. However, when a lactite type binder is used, surface cracking is more remarkably improved at the time of drying or firing, and the effect is further improved when used with aluminum oxide, It was possible to obtain a very excellent effect that no phenomenon such as cracks and the like occurred and it was different from the case of using a usual binder other than the lactite system. The lactate-based binder is not limited as long as it is a lactite-based binder, but lactate-based binder is not limited as long as it is lactate-based, for example, lactate produced by a lactic acid esterification reaction of any one of amine compounds selected from lactic acid and C 2 to C 5 mono-, di- or trialkanolamines A compound having a hydroxyl group, which is prepared by the reaction of a compound having a unit of the formula: ## STR2 ## or an isomer thereof, or a mixture thereof, or an amine compound selected from lactic acid, an alkylene oxide and a C2 to C5 mono-, di- or trialkanolamine , An isomer thereof, or a mixture thereof, or a compound prepared by the esterification reaction of a polylactate or a polylactate and any one of amine compounds selected from a C2 to C5 mono-, di- or trialkanolamine, an isomer thereof, Or a mixture thereof.

As described above, in the case of the conventional clay charcoal-embedded clay interior and exterior materials, the amount of generated negative ions is relatively small and the strength is weak. Furthermore, since the flatness or smoothness of the product is lowered after the manufacturing process or after the construction, defects such as warping and micro cracks have been pointed out, and the thickness and weight of the product have been limited to floor and wall.

According to the present invention, firstly, by using the ilite as a constituent material, the negative ion generation amount is increased, but the strength can be improved while reducing the thickness of the board in the case of forming a board.

Second, as a result of the mixing, drying, molding and firing steps at a predetermined blending ratio of the present invention, the flatness and smoothness of the present invention are remarkably superior to those of conventional products. As a result, not only in the drying and firing stages, Respectively. In addition, by maintaining the flatness and smoothness continuously after the construction, it is possible to eliminate the problems that the clay interior and exterior materials are peeled off after being bonded or micro cracks are formed.

Third, since it is possible to manufacture the clay interior and exterior materials having improved durability, flatness and smoothness while reducing the weight and specific gravity, it has become possible to utilize a thin plate board not only as a wall but also as a ceiling construction application. There is an advantage that the occurrence of warpage is remarkably reduced even when the applicable board is manufactured.

Fourth, since the wood is carbonized and remains as charcoal (charcoal), it has an advantage that the core functions of yellow loess, ilite and char can be satisfied at the same time. In addition, there is an advantage of being able to provide an environmentally friendly method of manufacturing a clay interior and exterior material having excellent surface smoothness, glossiness, and feel, and a product thereof.

In addition, by producing the clay interior and exterior material with charcoal-free surface cracking, a remarkable effect of increasing the productivity and reducing the defect rate was obtained.

1 is a flow chart of a manufacturing method according to a first embodiment of the present invention;
2 is a flow chart of a manufacturing method according to a second embodiment of the present invention;
3 is a flowchart of a manufacturing method according to a third embodiment of the present invention.
4 is a detailed flowchart of a manufacturing method according to a third embodiment of the present invention.
5 is a reference view of the clay interior and exterior materials showing the formed body by the molding step.
6 is a reference view of the clay interior and exterior materials showing the state after the firing step.
Fig. 7 is an illustration of an oblong interior or exterior material of a rectangular shape manufactured according to the present invention. Fig.
BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a brick,

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

1 is a flow chart of a manufacturing method according to a first embodiment of the present invention. Referring to FIG. 1, a method for producing a clay-containing clay interior / exterior material according to the present invention comprises: a composition mixing step (S10) for mixing together with water including loess, ilite, kaolin and wood powder; A forming step (S40) of forming the composition into a molded body; Drying the molded body (S50); And a firing step (S60) of heating the dried formed body in an oxygen-free atmosphere at 650 to 890 ° C, wherein the external wood powder is completely burned by the firing step, and the wood powder inside is charcoal.

In the composition mixing step (S10), yellow ocher, sunlight, kaolin and wood powder are mixed with water. The loess is composed of minerals such as silica, alumina, iron powder, calcium carbonate, magnesium, and sodium, and the iron has a color such as yellow or red in the oxidation process. Hwangto contains enzymes such as catalase, diphenol oxidase, saccharase and protease, and has the function of removing toxins, decomposing power and purifying action. In addition, it is known that the far infrared rays are emitted to activate the physiological action of the cells and have excellent heat effects.

In addition, it has excellent humidity control ability due to its wide surface area (double-layered structure of tetrahedron and octahedron formed 1: 1) and is a refractory material with inorganic incombustible material.

On the other hand, ocher has a property of being viscous due to the calcium carbonate contained in the loess, and has a property of reacting with water to change into clay. However, after drying, the compressive strength is lowered so that the surface is easily cracked and the surface finish is coarse. Have been widely used as flooring and compaction materials.

In addition, yellow clay (Ca) is adsorbed on the activated CaO in organic soil (R. COOH, R.OH), such as humic acid, in the loess soil during harvesting of raw materials, The effect of condensation between the particles is stopped or inhibited, so that shrinkage or expansion due to the inflow and outflow of water may occur when the inside / outside material is manufactured using mainly yellow clay.

Illite is a major component of weathered metamorphic rocks of rocks, and has a plate-like crystal form. It is an antimicrobial mineral with high pore size and numerous pores.

Kaolin is mainly composed of kaolinite and halloysite, and feldspars are formed by chemical weathering with carbonic acid and water. It is mainly used for ceramics raw materials which want clear white.

The wood flour is carbonized by charcoal in a firing step (S60), which is usually carbonized by using oak wood powder or the like. Charcoal releases anions and far-infrared rays, and is known to have effects such as dehumidification, air purification, deodorization, and filtration.

On the other hand, when yellow loess or the like contains a lot of fine particles, the water particles expand due to the surrounding hydration reaction, and when adjacent particles are separated, potential expansion may occur.

In the present invention, it is possible to provide a clay interior and exterior material having charcoal which exhibits a new effect of strengthening bonding between the other components to minimize shrinkage / swelling and improve strength. It is believed that the bonding between each component increases the binding force, and the cause of the binding is not known. However, it is considered that the organic bonding due to the light is affected by the reduction or disappearance of the surface cracking.

Preferably, the composition mixing step (S10) is performed such that the compounding ratio of the composition excluding water is 20 to 100 parts by weight of daily light, 5 to 20 parts by weight of kaolin and 10 to 45 parts by weight of wood powder, Mix well with water.

When sunlight is used in an amount of less than 20 parts by weight, cracks on the surface may appear partially in the drying step, and when the amount of sunlight is more than 100 parts by weight, it is relatively more expensive than yellow clay, It is better to avoid this.

In mixing the water in the composition mixing step (S10), the composition is impregnated considering the particle size of the composition. When the mixture is preliminarily pulverized and then mixed, the content of water may be about 5 to 15% by weight based on 85 to 95% by weight of the mixed composition. However, if it is not pulverized beforehand, It is preferable to feed it sufficiently and grind and stir it by a known grinding means such as a ball mill.

When using a ball mill, it is advisable to introduce yellow clay or wood flour, which is relatively difficult to crush, first, and then to put in the sunlight and kaolin. It is also preferred that the amount of the ball and the amount of the composition other than water be about 1: 1, the composition excluding water is about 65 to 75% by weight, and the balance is filled with 25 to 35% by weight of water . The molding may include a step of reducing the water content to a predetermined value by a pre-forming drying step (S30), which will be described later. The composition mixing step through the ball mill is pulverized, agitated for about 10 to 12 hours, sampled and passed through a sieve of 50 to 300 mesh.

After the composition mixing step (S10), the composition is formed into a molded body having a predetermined shape by a molding step (S40). When the content of water is about 5 to 15% by weight, the molding method can be performed by press molding with a press mold. If the content of water is about 15 to 35% by weight, the extrusion molding method can be carried out.

In one embodiment of the present invention, a press molding method using a mold frame is adopted so that the content of water is 5 to 15% by weight, more preferably 5 to 10%. In press molding, when the content of water is 15% by weight or more, there is a problem that the composition sticks to the mold or the shape is not maintained properly.

In the case of press molding, the composition mixed in the composition mixing step (S10) is applied to a press mold die, and then the molding is pressed by an appropriate pressure. At this time, it is of course possible to form a hole for facilitating the later construction or to form a pattern, a pattern or the like on the surface for improving the sense of beauty.

In the case of a floor board, the molded body may have a width of about 300 mm x 300 mm and a thickness of about 20 mm to about 30 mm, a width of about 300 mm x 300 mm for a wall board, a thickness of about 3 mm To 10 mm. Particularly, the clay interior / exterior material with charcoal according to the present invention is lighter in weight than the conventional product, and its utilization as a ceiling board is very high when the thickness is 3 to 8 mm, more preferably 5 to 6 mm.

Next, in the drying step (S50), the step of drying the molded body after the molding step (S40) is performed for a predetermined time, and the molded body is completely dried in the sintering step (S60) before the firing step (S60) .

In the case of natural drying, the molded body may be dried for about 2 to 3 days or artificial drying may be performed using a large-sized dryer at a temperature of 70 to 85 ° C to shorten the drying time. The drying time through the dryer may vary depending on the thickness of the molded article, but if it is a board, the drying time is about 12 to 24 hours.

The dried formed article is placed on a sintering furnace (or kiln) and then subjected to a sintering step (S60) in which the heated state is maintained at a temperature of 650 to 890 ° C. In this case, when the furnace is heated in an oxygen-free atmosphere in which oxygen is hardly supplied, the wood can be carbonized with charcoal. The heating rate is gradually heated to about 1.5 to 5.0 ° C / min and the optimum holding time is about 0.1 to 5 hours .

When the firing temperature is less than 650 ° C., firing is not performed to have a sufficient strength. If the firing temperature is higher than 890 ° C., the strength of the loess is improved, but the physical properties of the loess are lost. . After the sintering step (S60), the charcoal-embedded clay interior and exterior materials are slowly cooled down to the storage place.

Fig. 5 is a reference view of the clay interior and exterior materials showing the formed body by the molding step (S40), and Fig. 6 is a reference view of the clay interior and exterior materials showing the state after the firing step (S60).

5 (a) is a perspective view of a preform board-shaped molded article, and FIG. 5 (b) schematically shows a cross-sectional view taken along line A-A '. The components are mixed and compressed relatively uniformly by the composition mixing step and the press molding.

6 (b) is a cross-sectional view taken along the line B-B ', and FIG. 6 (b) is a schematic view showing that the core is carbonized by the firing step (S60) to form a core- to be.

That is, when the sintering step S60 is performed, the wood powder located on the outside (surface) of the dried molded article is completely burned to form an ocher layer having a thickness of 1 to 3 mm, and the wood powder located therein is not lost, It becomes graphitized and becomes charcoal.

The core shell structure in which the charcoal remains in the deep part of the clay interior and exterior material does not cause the charcoal to come on even if it touches the surface. It can realize the original color of the horticulture and the production of the clay interior and exterior material which simultaneously has the effect of charcoal, It becomes possible. In addition, due to the addition of Ilright, smoothness and flatness are excellent, and an excellent surface texture can be realized.

2 is a flow chart of a manufacturing method according to a second embodiment of the present invention. Referring to FIG. 2, the remaining manufacturing process except for the drying step (S30) before molding is the same as that of the first embodiment of the present invention described with reference to FIG. 1, so that only additional features will be described.

As described above, in the case of mixing preliminarily cleaned and ground yellow loam, ilite, kaolin and wood flour together with water, the content of water is 5 to 15% by weight in comparison with the composition excluding water, There is no problem in taking the method.

However, in the case of pulverizing each composition using a ball mill without preliminarily grinding and pulverizing, since the power performance of the ball mill and the water content required for water impregnation are in the range of 25 to 35% by weight, S40), a drying step (S30) before molding is necessary so that the content of water is within 5 to 15% by weight before pressurization in a press method.

Of course, when the extrusion method is adopted in the molding step (S40), extrusion molding can be performed even if the water content is somewhat high. However, in order to minimize the thickness of the clay interior and exterior materials and to compaction the soil through pressurization, It is necessary to reduce the water content.

The pre-molding drying step (S30) is a process of sufficiently penetrating and dispersing moisture in the particles and drying the material so as to have a proper moisture content for the molding step. Preferably, Dry for 12 to 24 hours at 70 ~ 85 ℃ in a large dryer. In the case of a dryer, the drying time is delayed when the temperature of the dryer is lower than 70 ° C, and cracks may occur when the temperature exceeds 85 ° C. It goes without saying that the drying time may be shorter than the time when the molded article is thin.

FIG. 3 is a flow chart of a manufacturing method according to a third embodiment of the present invention, and FIG. 4 is a flowchart of a more detailed manufacturing method thereof. Referring to FIG. 3, in the above-described manufacturing method, a pressure filtration step (S20) is included.

The pressure filtration step (S20) is a process of forcibly decreasing the water content to a proper ratio by using a known filter press to form the composition in the form of powder, wherein the content of the initial water introduced in the ball pusher Is additionally carried out when it is at least about 15% by weight based on the entire composition.

A filter press is a type of filter that is a known device for squeezing and dewatering a composition transferred from a ball mill to form a filter cake from the filter plate. In some cases, since the hot press dryer is provided in the filter press itself, the drying process can be performed to some extent in the pressure filtering step (S20), and the drying time of the subsequent drying step (S30) have.

Referring to FIG. 4, the composition mixing step S 10 may include a series of composition mixing step S 11, a composition pulverization step S 12, a composition stirring step S 13, and a composition transferring step S 14. Meanwhile, the pressure filtering step S20 may include a filtering cake forming step S21, a pre-crushing step S22, and a filtering cake crushing step S23.

The composition pulverization step (S12) and the composition stirring step (S13) may be carried out integrally with the ball mill. However, it is also possible to use a ball mill equipped with a plurality of ball mills, And may be designed to be integrated into a storage tank. In the composition stirring step (S13), the composition is kept stirred for a predetermined time so that the composition is evenly mixed. When sufficient agitation of the composition is achieved, a composition transfer step (S14) is performed in which the composition is pumped from the storage tank by a pump and transferred to the filter press.

In the filtering cake forming step S21, the filter press is squeezed to an appropriate pressure (approximately 60 to 80 psi), and the filter cake is removed from the filter. The separated filter cake is subjected to the aging step (S22) before pulverization for 1 to 2 days so that the water content is 8 to 15% by weight. This is for the purpose of improving the moldability by allowing water in the filter cake to be uniformly distributed inside. After the pulp aging step (S22), the filter cake is finely ground into a pulverizer and pulverized (S23), and sieved and stored. The pulverized powder of the composition may be produced as a clay interior / exterior material having charcoal by performing the molding step (S40), the drying step (S50) and the firing step (S60).

According to one experimental example of the present invention, a mixture of 50 wt% of yellow clay, 15 wt% of ilite, 15 wt% of kaolin, and 20 wt% of wood powder (about 30 parts by weight of sunlight, 30 parts by weight of kaolin And 40 parts by weight of wood powder), the light weight of 10 ~ 20% was observed due to the addition of sunlight compared to the weight of the conventional product composed of the same volume of yellow clay.

The mixture was blended with 40 wt% of yellow clay, 25 wt% of ilite, 10 wt% of kaolin and 25 wt% of wood powder (about 63 parts of sunlight, 63 parts of kaolin and 25 parts of kaolin) In the case of making a hallow charcoal board with a thickness of 300x300mm and a thickness of 5 ~ 6mm, the weight is reduced by about 20 ~ 30% due to the reduction in thickness compared with the case where the thickness is 7 ~ 8mm, %, And a remarkable weight reduction of 30 to 50% was observed.

In addition, when the conventional loess charcoal board has a size of 300x600x8 mm, it has been found that there is a problem that warping or cracking occurs during the storage process or after the installation. However, in the case of the loess internal and external materials with charcoal according to the present invention, Respectively.

      In another embodiment, a composition containing 70 parts by weight of ilite, 25 parts by weight of kaolin, 40 parts by weight of wood powder and 0.1 part by weight of aluminum hydroxide is mixed with 100 parts by weight of yellow clay to prepare a 5 mm thick loess charcoal board In the case of manufacturing, the weight reduction of about 20 ~ 30% due to the reduction in thickness compared with the case of 7mm thickness, and the addition of light to reduce the specific gravity of 10 ~ 20% , And it was found that the micro - cracking phenomenon of the surface was almost solved after drying and firing.

In another embodiment, a composition containing 70 parts by weight of ilite, 25 parts by weight of kaolin and 40 parts by weight of wood powder, and 0.1 part by weight of polylactate having a weight average molecular weight of 55,000 as a lactite binder, It was found that the fine cracking phenomenon of the surface was substantially eliminated after drying and firing in the case of using a 5 mm thick loess charcoal board having a width of 300x300 mm. When 0.5 weight part of aluminum hydroxide was further used in this example, fine cracking And 20 sheets were stacked as the surface smoothness, it was found that a product having numerical stability was obtained with very excellent strength with little difference in height and height.

FIG. 7 is a view showing an example of a rectangular oblong inner and outer material manufactured according to the present invention. FIG. Referring to FIG. 7, even if a board having a large area having an area of 300 x 600 mm is manufactured, no warping occurs, and only charcoal components are embedded in the deep portion.

Therefore, in the case of ceiling construction, a conventional board requires a plate having a size of about 300 x 300 x 10 mm due to a problem such as warpage, so that a construction time and labor are excessively caused, Even when the standard is larger, warpage, cracks, and the like do not occur, and the weight is remarkably reduced, so that convenience of construction can be increased.

Particularly, by adding smoothness and flatness of the surface by blending, molding, drying and baking of ilite with kaolin, kaolin, wood powder and water, it is possible to improve the smoothness and flatness of the surface, Even if it does not cause warpage, the construction is excellent. Further, even after long-term preservation or construction, the smoothness and flatness persistence is excellent, and the problem of occurrence of post-warpage and fine cracks is remarkably reduced. In addition, it prevents sticking and separation of board due to warpage, so it does not cause troubles on appearance and is excellent on the holding surface.

9 is an exemplary view of a brick-like clay interior and exterior material manufactured according to the present invention. Referring to FIG. 9, it is possible to use various types of boards as well as interior and exterior materials such as bricks. When the brick is manufactured, it is preferable to form the fastening hole in the forming step S40 as shown in Fig. 8 (a). 8 (b) schematically shows that charcoal is formed in the core shell structure in the interior of the loess charcoal brick.

In another aspect of the present invention, in the composition mixing step (S10), 0.1 to 3.0 parts by weight of alginic acid, which is a natural hardening agent, is added to 100 parts by weight of the loess, in addition to yellow loess, ilite, kaolin and wood flour. The alginic acid may be extracted from seaweed, kelp, mugwort, seaweed, and the like.

The addition of alginic acid which is a natural hardening agent makes it possible to maintain the shape of the formed body more easily without breaking in the molding step S40 to the firing step S60.

In addition, when alginic acid is added, fine cracks that may occur during the drying process can be reduced, and the surface of the inner and outer coverings of the clay is smoothly maintained, so that the surface texture, smoothness and gloss are excellent.

Particularly, in the case of a natural hardener, since it is mostly lost in the sintering step (S60), it is more environmentally friendly than a conventional cement hardener. In the case of the cement hardener, it remains after the sintering step (S60) at 650 to 890 ° C, which adversely affects the humidity control ability and air permeability, which are the original effects of the yellow loam, but the natural hardener has no such side effects.

Meanwhile, in order to produce more various effects in the composition mixing step (S10), quartz, zeolite, and tourmaline can be added. In addition, herbal extracts, herbal materials, yuuto And the like) can be added at an appropriate ratio.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

S10: composition mixing step
S11: composition mixing step S12: composition grinding step
S13: Composition stirring step S14: Composition transferring step
S20: Pressure filtration step
S21: Filtration cake forming step S22: Aging step before crushing
S23: Filtration cake crushing step
S30: Drying step before molding
S40: Molding step
S50: drying step
S60: Firing step

Claims (13)

Wherein the charcoal is built up by drying and firing a composition comprising 20 to 100 parts by weight of ilite, 5 to 25 parts by weight of kaolin and 10 to 45 parts by weight of wood powder, and water, based on 100 parts by weight of the loess.
[3] The composition according to claim 1, wherein the composition comprises 0.0001 to 1 part by weight of a lactate-based binder per 100 parts by weight of the loess,
The composition according to claim 1 or 2, wherein the composition comprises 0.001 to 2 parts by weight of aluminum hydroxide per 100 parts by weight of the loess,
A composition mixing step (S10) of mixing a composition containing loess, ilite, kaolin, wood flour and water; A forming step (S40) of forming the composition into a molded body;
Drying the molded body (S50); And a sintering step (S60) of heating the dried formed body to a temperature of 650 to 890 DEG C, wherein the external wood powder is completely burned by the above step, and the wood powder therein is charcoal- .
5. The method according to claim 4, wherein the composition mixing step (S10) comprises mixing charcoal mixed with water at a blending ratio of 20 to 100 parts by weight of ilite, 5 to 20 parts by weight of kaolin, and 10 to 45 parts by weight of wood powder, A method for manufacturing a built-in clay interior and exterior material.
5. The method according to claim 4, wherein the composition further comprises 0.0001 to 1 part by weight of a lactate-based binder per 100 parts by weight of the loess,
The method according to any one of claims 4 to 6, wherein the composition further comprises 0.001 to 2 parts by weight of aluminum hydroxide per 100 parts by weight of the loess,
The method according to claim 4, further comprising a pre-forming step (S30) for drying the composition until the moisture content reaches 5 to 12% by weight before the press forming step (S40) Way.
5. The method according to claim 4, wherein the composition mixing step (S10) comprises mixing charcoal with stirring using a ball mill.
The method according to claim 4, further comprising a pressure filtration step (S20) after the composition mixing step (S10), wherein the pressure filtration step (S20) comprises: filtration to pressurize the pulverized composition with a filter press to form a filtration cake A cake forming step (S21); Aging step (S22) before crushing to dry the filter cake; And a crushing step (S23) of crushing the filter cake to form a powder.
The method according to claim 4, wherein the molding step (S40) comprises a step of press-molding the steel sheet to form a board having a thickness of 5 to 8 mm using a press mold machine.
20 to 100 parts by weight of ilite, 5 to 20 parts by weight of kaolin, 10 to 45 parts by weight of wood powder, 0.001 to 2 parts by weight of aluminum hydroxide and 0.001 to 1 part by weight of lactite based binder and water are mixed with 100 parts by weight of yellow loess Wherein the composition is dried and fired.
[12] The method of claim 12, wherein the charcoal-embedded yellow clay inner and outer material is a plate-like type having a thickness of 3 to 10 mm.

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