KR101963211B1 - Clay tile and manufacturing method of the same that - Google Patents
Clay tile and manufacturing method of the same that Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/135—Combustion residues, e.g. fly ash, incineration waste
- C04B33/1355—Incineration residues
- C04B33/1357—Sewage sludge ash or slag
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/131—Inorganic additives
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass
- E04F13/142—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass with an outer layer of ceramics or clays
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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Abstract
Description
본 발명은 점토타일 및 그 제조방법에 관한 것으로서, 보다 상세하게는 강도가 향상되어 품질이 우수하며 환경친화적이고 자원재활용성도 우수한 새로운 구성의 점토타일 및 이러한 점토타일을 제조하는 방법에 관한 것이다. The present invention relates to a clay tile and a method of manufacturing the clay tile. More particularly, the present invention relates to a new clay tile having improved strength, excellent in quality, environment-friendly and resource recyclability, and a method for producing such a clay tile.
점토는 풍화, 분해과정에서 암석 내에 존재하는 규소, 알루미늄이 물과 결합하여 형성되는 것으로서, 열을 가하면 다시 암석처럼 단단하게 굳어지는 성질을 가지고 있다. 이와 같은 성질 때문에 점토는 도자기, 벽돌과 같은 건축자재, 내화물의 원료 등 다양한 분야에서 사용되고 있다. Clay is formed by the combination of water and silicon in rock during weathering and decomposition, and it hardens hard like rock again when heat is applied. Because of these properties, clay is used in various fields such as ceramics, building materials such as bricks, and raw materials for refractories.
특히, 점토타일은 독특한 질감과 분위기로 인해 실내 인테리어용 뿐만 아니라 실외 치장용으로도 많이 사용된다. 그런데 점토타일은 강도가 다소 약하여 쉽게 파손되는 단점을 가진다.In particular, clay tiles are used not only for interior decoration but also for outdoor decoration due to their unique texture and atmosphere. However, clay tiles have a disadvantage that they are easily broken due to weak strength.
한편, 정수장이나 하수종말처리장 등에서 발생되는 하수슬러지는 폐기물로 분류되어, 지정된 방법으로 폐기하고 있는데, 그 중 하나는 하수슬러지를 소각하는 방법이다, 하수슬러지의 소각시 발생되는 소각재는 매립되거나 재활용되기도 하는데, 재활용률이 낮기 때문에 대부분 매립되고 있는 실정이다. On the other hand, sewage sludge generated in a water treatment plant or sewage treatment plant is classified as waste and disposed of in accordance with a designated method. One of them is a method of incineration of sewage sludge. The incineration ash in sewage sludge is buried or recycled However, the recycling rate is low, so most of them are landfilled.
그러나 하수슬러지 소각시에 발생되는 소각재의 양이 상당히 많기 때문에 이를 매립하기 위해서는 상당히 넓은 면적의 매립용지가 확보되어야 하며, 또한, 하수슬러지 소각재, 특히, 바텀애쉬에는 미가연 성분을 비롯하여 유해성분들이 포함되어 있기 때문에 하수슬러지 소각재를 매립하는 경우에 환경오염이 유발되기도 한다.However, since the amount of incineration ash generated during the incineration of sewage sludge is considerably large, it is necessary to secure a large area of landfill to be buried. In addition, incineration ash of sewage sludge, especially bottom ash, It is possible to cause environmental pollution in the case of incineration of sewage sludge incineration ash.
본 발명은 상기와 같은 점에 착안하여 제안된 것으로서, 하수슬러지 소각재에 의해 강도가 향상되어 품질이 우수하며, 폐기되는 하수슬러지 소각재를 재활용하기 때문에 자원재활용성이 우수하고 환경친화적이며, 코스트도 저렴한 새로운 구성의 점토타일 및 이러한 점토타일을 제조하는 방법을 제공하는 것이다. The present invention has been made in view of the above points, and it is an object of the present invention to provide a sewage sludge incineration ash, To provide a new composition of clay tiles and methods of making such clay tiles.
본 발명의 특징에 따르면, 점토 50~65 중량부, 하수슬러지 소각재 45~50중량부, 금속발포칩이 5~10중량부를 포함하되,
상기 금속발포칩은 표면에 아파타이트가 결합된 이산화티탄이 부착된 세장한 형상을 가지는 구리발포칩인 것을 특징으로 하는 점토타일이 제공된다.According to an aspect of the present invention, there is provided a sludge ash composition comprising 50 to 65 parts by weight of clay, 45 to 50 parts by weight of a sewage sludge incineration ash, and 5 to 10 parts by weight of a metal foaming chip,
Wherein the metal foaming chip is a copper foaming chip having a slender shape with titanium dioxide bonded with apatite on its surface.
본 발명에 따르면, (1) 점토 50~65중량부, 하수슬러지 소각재 45~50중량부, 표면에 아파타이트가 결합된 이산화티탄이 부착된 세장한 형태의 구리발포칩 5~10중량부를 배합하는 과정; (2) 상기 (1)과정에서 배합된 원료를 타일형상으로 성형하는 과정; (3) 상기 (2)과정에서 성형된 타일을 건조시키는 과정; 및 (4) 상기 (3)과정에서 건조된 타일을 1000~1500℃로 가열하여 소성시키는 과정;을 포함하는 것을 특징으로 하는 점토타일 제조방법이 제공된다.According to the present invention, there are provided (1) a process of mixing 50 to 65 parts by weight of clay, 45 to 50 parts by weight of sewage sludge incineration ash, and 5 to 10 parts by weight of a copper foaming chip having a slender shape with apatite- ; (2) molding the raw material blended in the step (1) into a tile shape; (3) drying the molded tile in the step (2); And (4) heating the tile dried at the step (3) to a temperature of 1000 to 1500 ° C. and firing the dried tile.
이상과 같은 구성을 가지는 본 발명은 점토에 하수슬러지 소각재가 혼합되어 종래의 점토타일에 비해 강도가 향상된다. 따라서 강도가 우수한 고품질의 점토타일을 제조할 수 있다.According to the present invention having the above-described structure, the incineration ash of sewage sludge is mixed with the clay, so that the strength is improved as compared with the conventional clay tile. Therefore, it is possible to produce high quality clay tiles having excellent strength.
또한, 폐기처리되는 하수슬러지 소각재를 재활용함으로써 코스트가 저렴하며, 아울러 하수슬러지 소각재의 재활용율을 높여서 하수슬러지 소각재의 매립함에 따른 매립용지확보 및 환경오염 등의 문제가 해결에도 도움이 된다. In addition, by recycling the waste sewage sludge incineration ash, the cost is low, and the recycling rate of the sewage sludge incineration ash is increased, which also helps to solve problems such as securing landfill and environmental pollution due to incineration of sewage sludge incineration ash.
이하에서, 본 발명을 좀 더 구체적으로 설명한다.Hereinafter, the present invention will be described in more detail.
본 발명은 점토타일로서, 제1실시예에 따르면 점도 50~65 중량부, 하수슬러지 소각재 45~50중량부로 이루어진다. According to the first embodiment of the present invention, the clay tile has a viscosity of 50 to 65 parts by weight and a sewage sludge incineration ash of 45 to 50 parts by weight.
상기 하수슬러지 소각재는 하수 슬러지를 소각한 후에 발생되는 잔여물로서, 플라이애쉬와 바텀애쉬를 포함하는데, 바텀애쉬는 적절한 입도를 갖도록 분쇄하여 사용한다. The sewage sludge incinerator is a residue generated after incineration of the sewage sludge, which includes fly ash and bottom ash, and the bottom ash is crushed to have an appropriate particle size.
하수슬러지 소각재는 SiO2. Al2O3, Fe2O3, CaO 등의 금속산화물을 비롯한 다량의 무기질을 함유하고 있으며, 미세 기공을 포함하기 때문에 경량일 뿐만 아니라 강도도 우수한 장점을 가진다. Sewage sludge ash is SiO 2 . Al 2 O 3 , Fe 2 O 3 , CaO, and the like, and is advantageous not only in weight but also in strength because it contains micropores.
본 발명은 전술한 바와 같이, 점토 50~65중량부, 하수슬러지 소각재 45~50중량부로 이루어지는데, 점토가 50중량부 미만으로 포함되면 타일 성형시 배합된 원료들의 점결성이 저하되어 타일의 성형이 곤란해지며, 점토가 65중량부를 초과하여 포함되면 상대적으로 하수슬러지 소각재의 함량이 감소되어 하수슬러지 소각재에 의한 강도보강효과가 미미하다.As described above, the clay is composed of 50 to 65 parts by weight of clay and 45 to 50 parts by weight of a sewage sludge incineration material. If the amount of the clay is less than 50 parts by weight, the integrity of the raw materials mixed during the tile molding is lowered, When the amount of the clay is more than 65 parts by weight, the content of the sewage sludge incineration ash is relatively decreased, and the effect of reinforcing the incineration by the sewage sludge incineration is insignificant.
이러한 본 발명에 의한 타일은 다음과 같은 방법으로 제조된다. The tile according to the present invention is produced by the following method.
1) 점토와 하수슬러지 소각재를 전술한 바와 같은 비율로 배합한다. 1) Combine clay and sewage sludge incineration as described above.
2) 배합된 원료의 함수율을 조절하여 건식 및 반건식 성형, 또는 습식 성형 방법에 따라, 타일을 성형한다. 2) The tile is molded according to dry and semi-dry molding or wet molding by controlling the water content of the blended raw material.
건식 및 반건식 성형법은 배합원료의 함수율을 3∼10% 정도로 조절하여 프레스금형에 넣고 고압을 가해 성형하는 것으로, 표면에 입체무늬가 형성된 타일을 성형하는 경우에는 이러한 성형법을 사용한다. In the dry and semi-dry molding method, the moisture content of the blend material is adjusted to about 3 to 10%, and the mixture is put into a press mold and molded under high pressure. In the case of molding a tile having a three- dimensional pattern on its surface, such a molding method is used.
그리고 습식 성형법은 배합원료의 수분함량이 15~18% 정도 되도록 수분을 조절하여(물을 가하여) 진공토련기에 넣어 반죽한 다음, 오거머신(Auger Machine)에서 뽑아내어 성형하는 방법이다. In the wet molding method, water content is adjusted so that the water content of the raw material is 15 to 18% (water is added), kneaded in a vacuum puddle machine, and then pulled out from an Auger machine.
건식 및 반건식 성형법과 그리고 습식 성형법을 사용할 경우 침지 흡수율이 2.4~2.8%로 되게 하고 바람직하게는 2.6%가 되게 한다.The use of dry and semi-dry and wet forming methods allows the rate of water absorption to be 2.4-2.8%, preferably 2.6%.
3) 성형된 타일을 건조시킨다.3) Dry the molded tiles.
4) 건조된 타일을 1000~1500℃ 정도로 가열하여 소성시킨다. 4) The dried tiles are fired by heating at about 1000 to 1500 ° C.
이러한 소성과정에서, 점토 및 하수슬러지 소각재의 유리질 성분들이 용융되고, 후술하는 냉각과정에서 다시 고화됨에 따라 타일이 고결된다. In this firing process, the glassy components of the clay and sewage sludge incineration ash are melted and solidified again as the cooling process described later solidifies.
한편, 하수슬러지의 소각재 중에서 바텀애쉬에는 무기질과 가연성분을 가지는 유기물 및 중금속이 포함되어 있으며, 이러한 유기물의 가연성분 및 중금속에 의해 유해물질이 배출될 수도 있다. 그러나 본 가열과정에서 바텀애쉬에 함유된 가연성분이 완전히 연소되고, 아울러 하수슬러지 소각재에 함유된 수은, 카드뮴, 크롬 등의 유해한 중금속이 고정화되므로 중금속에 의한 유해성도 해소된다. Among bottom ashes of sewage sludge, bottom ash contains organic matter and heavy metals having inorganic and combustible components, and harmful substances may be discharged by combustible components and heavy metals of such organic matter. However, in this heating process, the combustible components contained in the bottom ash are completely burned, and harmful heavy metals such as mercury, cadmium, and chromium contained in the sewage sludge incineration ash are fixed, thereby eliminating harmful effects due to heavy metals.
타일의 종류에 따라 타일을 소성시키기 전에 유약을 바르는 시유공정을 행할 수도 있다. 이와 같이 유약을 시유하면 타일의 오염이 방지되고, 기계적 강도가 한층 더 향상되는 효과를 얻을 수 있으나, 타일에 유약을 바르면 후술하는 바와 같이, 본 발명에 의한 타일이 가지는 탈취성이 소실되므로 타일의 사용용도에 따라 시유공정을 선택적으로 행하는 것이 바람직하다. Depending on the type of the tile, a glazing process may be performed before the tile is fired. When the glaze is applied to the tile, the tile is prevented from being contaminated and the mechanical strength is further improved. However, if the glaze is applied to the tile, the deodorizing property of the tile according to the present invention is lost, It is preferable to selectively perform the refining process depending on the intended use.
5) 소성된 타일을 냉각시킨다.5) Cool the fired tile.
이와 같은 구성을 가지는 본 발명에 의한 타일은 점토에 하수슬러지 소각재를 혼합하여 제조됨으로써, 하수슬러지 소각재에 의해 점토타일의 강도가 보강된다. 또한, 폐기되는 하수슬러지 소각재를 활용하기 때문에 코스트가 저렴하며, 아울러 하수슬러지 소각재의 재활용률을 높이고, 따라서 하수슬러지 소각재의 매립함에 따른 문제점, 즉, 매립용지확보 및 환경오염 등의 문제가 해결에도 도움이 된다. 뿐만아니라, 타일을 소성시키는 과정에서 하수슬러지 소각재에 함유된 유해물질이 연소 및 고정화되어 하수슬러지 소각재에 의한 유해성도 해소된다. The tile according to the present invention having such a structure is produced by mixing sewage sludge incineration ash into clay, whereby the strength of the clay tile is reinforced by the sewage sludge incineration ash. In addition, since the sewage sludge incineration as waste is used, the cost is low, and the recycling rate of sewage sludge incineration ash is increased. Therefore, problems caused by incineration of sewage sludge incineration as well as securing of landfill and environmental pollution are solved . In addition, harmful substances contained in the sewage sludge incineration ash are burned and immobilized in the process of burning the tiles, thereby eliminating harmful effects caused by the sewage sludge incineration ash.
이와 같이 본 발명에 의해 제조되는 점토타일은 종래의 점토타일에 비해 강도가 보강되어 쉽게 파손되는 것이 방지되어 취급성이 좋으며, 하수슬러지 소각재의 미세 기공에 의해 탈취성도 우수한 장점을 가진다. As described above, the clay tile produced by the present invention has the advantages of being stronger than the conventional clay tiles and being prevented from being broken easily, and being easy to handle, and also having excellent deodorization property due to the micro pores of the sewage sludge incineration ash.
이하에서는 본 발명의 다른 실시예를 설명하되, 전술한 실시예와 동일한 구성 및 효과에 대해서는 설명을 생략한다.Hereinafter, other embodiments of the present invention will be described, and the same structures and effects as those of the above-described embodiments will not be described.
본 발명의 제2실시예에서는 금속발포칩이 더 포함된다. 금속발포칩은 금속을 발포시킨 금속발포체를 소정 크기로 파쇄시킨 것이다.In the second embodiment of the present invention, a metal foam chip is further included. A metal foaming chip is a metal foam obtained by foaming a metal to a predetermined size.
이러한 금속발포칩이 더 포함됨에 따라 제조되는 점토타일의 강도가 한층 더 향상되는데, 금속발포칩이 밀도가 낮아서 상당히 경량이기 때문에, 금속발포칩이 추가로 포함되어도 점토타일의 중량이 크게 증가되지 않고 금속발포칩의 첨가량에 따라 점토타일이 오히려 경량화될 수도 있다. As the metal foaming chip is further included, the strength of the clay tile to be produced is further improved. Since the metal foaming chip is low in density and considerably light in weight, the weight of the clay tile is not greatly increased Depending on the amount of metal foam chips added, clay tiles may be rather lightweight.
사용가능한 금속발포칩의 금속종류가 특별히 제한되지는 않으나, 바람직하게는 구리발포칩을 사용하다. 구리발포칩이 사용되면 구리의 항균, 전자파차폐성에 의해 점토타일에도 항균성, 전자파차폐성이 부여되므로 항균성, 전자파차폐성을 가지는 점토타일이 제조된다.The metal type of the metal foaming chip that can be used is not particularly limited, but a copper foaming chip is preferably used. When a copper foaming chip is used, clay tiles having antimicrobial property and electromagnetic shielding property are produced because antibacterial property and electromagnetic wave shielding property are imparted to clay tiles by copper antibacterial and electromagnetic wave shielding properties.
금속발포칩의 크기가 특별히 제한되지 않으나, 금속발포칩의 크기가 과도하게 작으면 금속발포칩에 의한 강도향상효과가 미미하며, 금속발포칩의 크기가 클수록 타일성형에 어려움이 발생할 수 있으므로 이러한 측면들을 고려하여 금속발포칩의 크기를 적절히 조절할 필요가 있다. 바람직하게는 금속발포칩은 가늘고 긴 형태 즉, 세장한 형태(shred)를 갖도록 파쇄된 것이 사용되는데, 이는 금속발포칩이 둥근 형태를 가지는 것에 비해 세장한 형태를 가지는 것이 점토파일의 강도 향상에 좀 더 효과적이기 때문이다.The size of the metal foaming chip is not particularly limited. However, if the size of the metal foaming chip is excessively small, the effect of improving the strength by the metal foaming chip is insignificant. As the size of the metal foaming chip is large, It is necessary to appropriately adjust the size of the metal foam chip. Preferably, the metal foaming chip is shredded so as to have a slender shape, that is, a shred. This is because the metal foaming chip has a rounded shape compared to a round shape, Because it is more effective.
한편, 금속발포칩이 많이 포함될수록 점토타일의 강도향상효과가 높아질 것이나, 금속발포칩이 상대적으로 많이 포함될수록 점토 및 하수슬러지 소각재의 함량이 감소되어 점토타일의 전체적인 물성이 저하되고 점토타일의 외관에서 점토타일 특유의 느낌이 상실될 수 있으므로 금속발포칩의 함량이 적절히 조절될 필요가 있는데, 이러한 여러 가지 측면들을 고려할 때 금속발포칩은 5~10중량부 포함되는 것이 바람직하다.On the other hand, the more the metal foaming chip is included, the higher the effect of improving the strength of the clay tile will be. However, the more the metal foaming chip is included, the lower the content of the clay and sewage sludge incineration as the whole property of the clay tile is lowered, The content of the metal foaming chip needs to be appropriately adjusted. In consideration of these various aspects, it is preferable that the metal foaming chip is included in an amount of 5 to 10 parts by weight.
이와 같이 본 실시예에서는 세장한 금속발포칩이 더 포함됨에 따라 점토타일의 중량에 큰 영향을 미치지 않으면서도 점토타일의 강도를 한층 더 향상시킬 수 있으며, 금속발포칩에 의해 점토타일의 기능성도 향상된다. As described above, in this embodiment, since the metal foaming chip is further included, the strength of the clay tile can be further improved without significantly affecting the weight of the clay tile, and the functionality of the clay tile can be improved do.
본 발명의 제3실시예에 따르면, 표면에 아파타이트가 결합된 이산화티탄이 더 포함된다. According to a third embodiment of the present invention, there is further included titanium dioxide to which apatite is bonded on its surface.
광촉매는 빛에 의해 하이드록시 라디컬(OH-)과 슈퍼 옥사이드 이온을 발생시키고, 이들에 의해 각종 유기물, 미생물 등을 분해하는 물질로서, 가장 대표적인 광촉매가 이산화티탄이다. 이러한 광촉매는 빛이 있어야만 광촉매작용을 하기 때문에 빛이 없는 경우에는 광촉매에 의한 효과를 얻을 수 없다. Photocatalyst is a substance that generates hydroxy radical (OH - ) and superoxide ion by light, and decomposes various organic matter, microorganism and the like by these, and titanium dioxide is the most typical photocatalyst. Such a photocatalyst has a function of photocatalyst only when there is light. Therefore, when there is no light, a photocatalytic effect can not be obtained.
한편, 아파타이트는 M10(ZO4)6X2의 분자식을 가지는 물질로서 유기물 및 세균을 흡착할 수 있는 능력을 가지고 있다. 따라서, 표면에 아파타이트가 결합된 이산화티탄은 빛이 있는 경우에는 아파타이트가 흡착한 미생물 및 오염물이 즉시 이산화티탄에 의해 즉각적으로 분해되고, 빛이 없는 경우에는 아파타이트가 미생물 및 오염물을 흡착하고 있다가 빛이 가해지면 이산화티탄에 의해 분해된다. On the other hand, apatite is a substance having a molecular formula of M 10 (ZO 4 ) 6 X 2 , and has an ability to adsorb organic substances and bacteria. Therefore, when titanium dioxide is attached to the surface, the microorganisms and contaminants adsorbed by the apatite are instantly decomposed immediately by titanium dioxide. If there is no light, the apatite adsorbs microorganisms and contaminants, Is decomposed by titanium dioxide.
이와 같이 아파타이트가 결합된 이산화티탄은 빛이 없는 경우에도 아파타이트에 의해 미생물 및 오염물이 흡착되기 때문에, 빛의 유무에 상관없이 항상 미생물 및 오염물의 광분해효과를 얻을 수 있다. In this way, even if there is no light, the photocatalytic activity of microorganisms and contaminants can be always obtained regardless of the presence or absence of light because the apatite-bound titanium dioxide adsorbs the microorganisms and contaminants by the apatite.
바람직하게는 표면에 아파타이트가 결합된 이산화티탄은 2~5중량부 포함되는데, 입도가 수십에서 수백 nm인 것이 사용된다. 표면에 아파타이트가 결합된 이산화티탄이 2중량부 미만으로 포함되면 이산화티탄에 의한 광촉매효과가 미미하다. 그리고 표면에 아파타이트가 결합된 이산화티탄이 5중량부를 초과하여 포함되더라도 이산화티탄에 의한 광촉매 효과의 상승정도가 미미하므로 5중량부를 초과하여 포함되는 것은 비용이나 효과면에서 바람직하지 않다. Preferably, 2 to 5 parts by weight of titanium dioxide to which apatite is bonded is used, and a particle size of from several tens to several hundreds of nm is used. When the surface contains less than 2 parts by weight of titanium dioxide bonded with apatite, the effect of titanium dioxide on the photocatalyst is insignificant. Even if titanium dioxide having an apatite-bonded surface is included in an amount exceeding 5 parts by weight, the degree of increase of the photocatalytic effect due to titanium dioxide is insignificant, so that it is not preferable from the viewpoint of cost and effectiveness to include more than 5 parts by weight.
특히, 바람직하기는 표면에 아파타이트가 결합된 이산화티탄을 점토 및 하수슬러지 소각재의 배합시 직접 투입하기 보다는 전술한 표면에 아파타이트가 결합된 이산화티탄을 전술한 금속발포칩에 부착시켜 투입하는 것이 바람직하다. 표면에 아파타이트가 결합된 이산화티탄의 나노크기를 가져서 분산성이 떨어지기 때문에, 점토 및 하수슬러지 소각재에 직접 투입하면 표면에 아파타이트가 결합된 이산화티탄이 점토 및 하수슬러지 소각재가 고르게 잘 교반되지 않을 수 있는데, 표면에 아파타이트가 결합된 이산화티탄을 금속발포칩에 코팅하고, 이산화티탄이 코팅된 금속발포칩을 배합하면 금속발포칩이 분산됨에 따라 이산화티탄이 고르게 잘 분산되는 장점을 가진다. 표면에 아파타이트가 결합된 이산화티탄을 금속발포칩에 부착시키는 방법은 표면에 아파타이트가 결합된 이산화티탄 분산액을 금속발포칩에 고압으로 분사한 후 건조시켜 이루어진다. Particularly, it is preferable that titanium dioxide to which apatite is bound is added to the above-mentioned metal foaming chip by attaching apatite-bound titanium dioxide to the above-mentioned surface, rather than directly introducing apatite-bound titanium dioxide onto the surface thereof when the clay and sewage sludge incineration ash are mixed . Because of the nano-size of the titanium dioxide with apatite bound to the surface, the dispersibility of the titanium dioxide is lowered. Therefore, when it is directly added to the clay and sewage sludge incineration ash, the clay and sewage sludge incineration ash may not be uniformly mixed However, when titanium dioxide coated with apatite on its surface is coated on a metal foaming chip and a metal foaming chip coated with titanium dioxide is blended, titanium dioxide is dispersed evenly as the metal foaming chip is dispersed. A method of attaching apatite-bound titanium dioxide to a surface of a metal foaming chip comprises spraying a dispersion of titanium dioxide with apatite on its surface onto a metal foaming chip at high pressure and drying.
이러한 본 실시예에서는 점토타일에 광촉매의 기능이 더해져서, 점토타일이 유해물질 흡착, 탈취, 항균성을 가지게 되며, 특히, 표면에 아파타이트가 결합된 이산화티탄이 사용되기 때문에 빛이 없는 경우에도 광촉매에 의한 효과를 얻을 수 있으며, 광촉매에 의해 점토타일이 방오성을 가지므로 점토타일이 먼지에 오염되는 것이 방지되어 청소 및 유지관리가 용이한 장점을 가진다. In this embodiment, the function of the photocatalyst is added to the clay tile, so that the clay tile has the harmful substance adsorption, deodorization and antibacterial properties. Particularly, since the surface of the titanium dioxide with the apatite is used, And the clay tile is prevented from being contaminated by the dust because the clay tile has the antifouling property by the photocatalyst, so that it is easy to clean and maintain.
Claims (6)
상기 금속발포칩은 표면에 아파타이트가 결합된 이산화티탄이 부착된 세장한 형상을 가지는 구리발포칩인 것을 특징으로 하는 점토타일.
50 to 65 parts by weight of clay, 45 to 50 parts by weight of a sewage sludge incineration ash, and 5 to 10 parts by weight of a metal foaming chip,
Wherein the metal foaming chip is a copper foaming chip having a slender shape with titanium dioxide bonded with apatite on its surface.
(2) 상기 (1)과정에서 배합된 원료를 타일형상으로 성형하는 과정;
(3) 상기 (2)과정에서 성형된 타일을 건조시키는 과정; 및
(4) 상기 (3)과정에서 건조된 타일을 1000~1500℃로 가열하여 소성시키는 과정;을 포함하는 것을 특징으로 하는 점토타일 제조방법.
(1) mixing 50 to 65 parts by weight of clay, 45 to 50 parts by weight of sewage sludge incineration ash, and 5 to 10 parts by weight of elongated copper foaming chips having apatite-bound titanium dioxide on its surface;
(2) molding the raw material blended in the step (1) into a tile shape;
(3) drying the molded tile in the step (2); And
(4) The method of manufacturing a clay tile according to the above (3), wherein the dried tile is heated to 1000 to 1500 ° C. and fired.
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|---|---|---|---|---|
| CN110372395A (en) * | 2019-08-07 | 2019-10-25 | 淄博金卡陶瓷有限公司 | Exterior wall high-strength light ceramic thermal insulation decorative integrated plate |
| KR102315058B1 (en) * | 2020-12-04 | 2021-10-21 | 재단법인 서울특별시 서울기술연구원 | Manufacturing method for pottery, ceramic clay used the same and manufacturing method for painted pottery using wastewater sludge incineration ash |
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