KR100208778B1 - Light weight aggregate and the method of producing thereof - Google Patents

Light weight aggregate and the method of producing thereof Download PDF

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Publication number
KR100208778B1
KR100208778B1 KR1019960020088A KR19960020088A KR100208778B1 KR 100208778 B1 KR100208778 B1 KR 100208778B1 KR 1019960020088 A KR1019960020088 A KR 1019960020088A KR 19960020088 A KR19960020088 A KR 19960020088A KR 100208778 B1 KR100208778 B1 KR 100208778B1
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South Korea
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oxide
iron
bunker
oil
aggregate
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KR1019960020088A
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Korean (ko)
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KR980001924A (en
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한갑수
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서영화
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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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/04—Heat treatment
    • C04B20/06—Expanding clay, perlite, vermiculite or like granular materials
    • C04B20/061—Expanding clay, perlite, vermiculite or like granular materials in rotary kilns
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/10—Clay
    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1055—Coating or impregnating with inorganic materials
    • C04B20/1066—Oxides, Hydroxides

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Civil Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Road Paving Structures (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

본 발명은 건축물 및 도로포장시 사용되는 경량골조 및 제조방법에 관한 것으로서, 전체중량을 90%로 기준하여 산화규소(SiO2)가 70, 산화 알루미늄(Al2O3) 15, 산화칼륨(CaO3) 2.4, 산화철(Fe2O3) 2, 산화 마그네슘(MgO3) 0.6의 조성비를 가지는 점토에 물9와 벙커C유를 1를 투입하여 내부온도가 1150∼1200℃의 온도를 가지는 로터리 키른(8)을 통과시켜 성형하여 선발명에서 발생되는 1·2차 소성공정을 1차의 소성공정으로 단축시키고 부재료의 종류를 절감하여 단시간내에 골재를 성형함으로써 생산성을 높일 수 있음은 물론 에너지 절감효과를 가져오고 양질의 경량골재를 생산할 수 있는 발명이다.The present invention relates to a light frame and the production method used in building and road paving, the total weight is based on the silicon oxide (SiO 2) 70 to 90% , Aluminum (Al 2 O 3) 15 oxide , Potassium oxide (CaO 3) 2.4 , Iron oxide (Fe 2 O 3 ) 2 , Magnesium (MgO 3) 0.6 Oxidation Lt; RTI ID = 0.0 > 9 < / RTI > And bunker C oil 1 Is passed through a rotary kiln (8) having an internal temperature of 1150 to 1200 ° C to shorten the primary and secondary firing processes generated in the name of the firing process to the primary firing process, It is possible to increase the productivity by molding the aggregate in a short time, and it is an invention that can produce energy saving effect and produce high quality lightweight aggregate.

Description

외피에 피막이 형성된 경량골재 및 제조방법Lightweight aggregate with coating on outer skin and manufacturing method

제1도는 본 발명의 제조공정을 나타낸 공정도.FIG. 1 is a process diagram showing a production process of the present invention. FIG.

* 도면의 주요부분에 대한 부호의 설명DESCRIPTION OF THE REFERENCE NUMERALS

1 : 공급기 2 : 믹서기1: Feeder 2: Mixer

3 : 물탱크 4 : 스크류 콘베이어3: Water tank 4: Screw conveyor

5 : 터브레이터 6 : 이송 콘베이어5: Turbler 6: Feed conveyor

7 : 연돌 8 : 로터리 키른7: stack 8: rotary kiln

9 : 에프론 콘베이어 10 : 냉각로9: Ephron conveyor 10: Cooling furnace

본 발명은 건축물 및 도로포장시 사용되는 경량골조 및 제조방법에 관한 것으로서, 특히 대량생산이 가능하고 방수성이 우수하며 내진성을 가지도록 한 외피에 피막이 형성된 경량골조 및 그 제조방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a lightweight frame and a method of manufacturing the same, and more particularly, to a lightweight frame and a method of manufacturing the same.

일반적으로 건축물이나 도로포장시 사용되는 골조는 화강암이나 현무암등의 자연석을 작은 입자로 파쇄하여 이를 시멘트등과 혼합하여 사용하여 왔던바, 골조를 자연석으로 사용하기 때문에 골조를 구입하기 위하여서는 환경 파괴가 필연적으로 발생되는 문제점이 있어 최근에는 탄광 폐석을 이용한 골조(특허공고 제80-1054호)나 구상 발포 플라스틱 표면에 토양을 코팅하거나 또는 토양과 유사한 무기질 세립이나 시멘트와 경화제를 첨가 교반하여서 된 점주액을 코팅하여 형성한 경량골재(특허공고 제76-466호)석면을 이용한 경량골조(특허 공고 제81-123호), 발포 플라스틱 구상체와 중질유를 혼합 교반하여 건식 모르타르를 피착시켜 양생한 경량골조(특허공고 제80-1056호)들이 개발되었으나, 상기의 경량골조들은 비중이 1.4∼0.7로 비교적 중량이고 발포플라스틱 구상체에 토양을 코팅한 경량골재를 골재로서 사용하게되면 모르타르내의 이물질인 토양이 혼입되므로서 강도가 약해지는 결합이 발생되었고 접착매개층인 점토질 부분 때문에 단열성과 경량성이 떨어지며, 발포플라스틱 구상체에 중질유를 코팅한 것등은 중질유드의 재료비가 고가로 인하여 생산원가가 높아질 뿐 아니라 구상체 표막에 불균형한 표막층이 도포되어 콘크리이트 강도가 불균일한 폐단이 발생되었으며,또한 석면을 이용한 경량 골재를 사용하게 되면 콘크리이트의 비중이 높아질 뿐만 아니라 콘크리이트 강도가 약해지고 생산원가가 높아지는 단점이 발생되었으며, 상기의 경량골재를 이용하여 기포 콘크리이트를 제조할 경우에는 강도가 더욱 떨어지게 됨으로써 실용적가치가 없어지게 되어 별도의 기포제를 첨가하여야 하는 등의 문제점이 발생되었다.Generally, the frame used for building or road pavement is made by crushing natural stone such as granite or basalt with small particles and mixing it with cement. Since the frame is used as a natural stone, environmental destruction In recent years, it has been proposed to coat soil on the surface of a plastic foamed plastic or a spherical foamed plastic surface (Japanese Patent Publication No. 80-1054) or to add a mineral filler such as soil or cement and a curing agent to the surface, (Patent Publication No. 76-466), a lightweight frame using asbestos (Patent Publication No. 81-123), a lightweight frame obtained by mixing and agitating foamed plastic spheres and heavy oil, and drying and curing the mortar (Patent Publication No. 80-1056) have been developed. However, the above-mentioned lightweight frames have a specific gravity of 1.4 to 0.7, When the lightweight aggregate coated with the spheroids of the plastic is used as the aggregate, the soil, which is a foreign material in the mortar, is mixed, and the weak bonding is generated. The clay part, which is the adhesive medium layer, deteriorates the insulation and lightweight. In addition to the high cost of raw materials due to the high cost of heavy oil coatings such as the coating of heavy oil on the upper body, the production cost is increased and the uneven coating layer is applied to the surface of the spherical body, When the aggregate is used, not only the weight of the concrete increases but also the strength of the concrete is weakened and the production cost is increased. In the case of producing the foamed concrete by using the lightweight aggregate, the strength is further decreased, It is necessary to add a separate foaming agent This issue was of such occurrence.

상기의 문제점 등을 해결하기 위하여 본 발명인은 특허공고 제90-5974호를 창출하였던 바, 상기의 선발명은 규소(SiO264.0∼72.96)를 갖는 점토에 산화 알루미늄(Al2O315.0∼16.95), 산화철(Fe2O35.0∼7.5), 산화칼슘(CaO30.4∼0.59), 산화 마그네슘(MgO30.41), Igloss 6.78, 중유 1.5를 혼합하여 1150∼1200℃에서 약 2분간 소성 시킨 다음 800∼900℃로 3∼5분간 로타리 키튼에서 2차 소성시켜서 된 것으로서 외피에 천이 피막되게하고 압축강도가 45kg/㎠ 이상되게 하며 열전도율이 0.06 이하와 흡음률 0.7dB 이하, 비중 0.28∼0.4 이내가 되는 방수와 내진성을 가지는 특성이 있도록 한 경량골재를 얻을 수 있도록 한 것인바, 상기의 선발명은 골재를 성형하기 위하여서는 1차 소성과 2차 소성의 공정을 필요로 하므로 단시간내에 골재의 성형이 어렵고 다수의 부재료가 투입되는 등의 단점을 가지고 있는 것이다.In order to solve the above problems, the inventor of the present invention created Patent Publication No. 90-5974, and the above-mentioned name was silicon (SiO 2 64.0 to 72.96 ) Was added to the clay having aluminum oxide (Al 2 O 3 15.0 to 16.95 ), Iron oxide (Fe 2 O 3, 5.0 to 7.5 ), Calcium oxide (CaO 3 0.4~0.59 ), Magnesium oxide (MgO 3 0.41 ), Igloss 6.78 , Heavy oil 1.5 And then fired at 1150 to 1200 ° C for about 2 minutes and then fired at 800 to 900 ° C for 3 to 5 minutes in a rotary kiln to give a sheath on the outer shell and a compressive strength of at least 45 kg / Or less and a sound absorption coefficient of 0.7 dB or less and a specific gravity of 0.28 to 0.4 or less. The above-mentioned designation can be applied to the first and second firing It is difficult to form an aggregate in a short time and a large number of sub-materials are added.

본 발명은 상기의 선발명을 개량한 것으로 산화규소와 산화칼슘 및 산화 알루미늄, 산화철을 가지는 점토에 물과 벙커C유로 반죽을 하여 1200℃에서 소성한 후 급냉시켜 압축강도와 열전도율 및 흡음율, 비중, 방수, 내진성이 개선된 경량골재를 제공하는데 본 발명의 목적이 있는 것이다.The present invention relates to an improvement of the above-mentioned name, wherein the clay having the silicon oxide, calcium oxide, aluminum oxide and iron oxide is kneaded with water and Bunker C, and the mixture is quenched at 1200 DEG C and then quenched to obtain the compression strength, thermal conductivity, The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a lightweight aggregate improved in waterproofing and earthquake resistance.

이하, 본 발명을 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

전체중량을 90로 기준하여 약 70가량의 산화규소(SiO2)와 산화 알루미늄(Al2O3) 15, 산화칼륨(CaO3) 2.4, 산화철(Fe2O3) 2, 산화 마그네슘(MgO3) 0.6의 성분을 가지는 점토를 공급기(1)로서 혼합기(2)에 공급한 후 혼합기(2)에서 혼합된 재료에 물탱크(3)를 통해서 물9와 벙커C유 1를 투입하여 스크류 콘베어(4)로서 반죽을 하고 반죽된 재료를 터브레이터(5)로서 1∼3mm 의 크기로 선별한 후 선별된 재료를 콘베어(6)로서 일측에 연돌(7)이 형성되고 내부온도가 1150∼1200℃의 온도를 가지는 로터리 키른(8)내로 투입 시켜 5분간에 걸쳐 통과되도록 하여 로터리 키른(8)을 통과시 성형된 중간재가 폭발되어 입자가 100∼200팽윤시키고 에프론 콘베어(9)로 투입하면 에프론 콘베어(9)가 냉각로(10)를 통과하면서 팽윤 조성된 입자들이 고열로 연화되는 것을 방지한 상태에서 야적장에 저장되거나 포장기로 보내어 포장된후 저장이 되는 것이다.The total weight is 90 About 70 (SiO 2 ) and aluminum oxide (Al 2 O 3 ) 15 , Potassium oxide (CaO 3) 2.4 , Iron oxide (Fe 2 O 3 ) 2 , Magnesium (MgO 3) 0.6 Oxidation Is supplied to the mixer 2 as the feeder 1 and then mixed with the mixed material in the mixer 2 through the water tank 3 to obtain water 9 And bunker C oil 1 Is kneaded as a screw conveyor (4), the kneaded material is selected as a turbator (5) to a size of 1 to 3 mm, a selected material is conveyed as a conveyor (6) (8) having a temperature of 1150 to 1200 占 폚 and passed through the rotary kiln (8) for 5 minutes so that the molded intermediate material is exploded when the particles are passed through the rotary kiln When the swollen particles are swelled and fed to the Efron conveyor 9, the Efron conveyor 9 is passed through the cooling furnace 10 to prevent the swollen particles from being softened by the high temperature. .

이때, 재료를 반죽하기 위하여 투입되는 벙커 C유는 상기 로터리 키른(8)을 중간재가 통과할 때 1150∼1200℃의 온도에 의하여 점토에 함유된 산화물로부터 유리되는 산소와 결합하여 이산화 탄소로 팽윤되어서 성형재 속에서 공동을 형성함과 동시에 점토에 함유된 철은 용융되어 고열에 의하여 산소를 빼앗긴상태로 분리 배출이 되고 산화칼슘이나 산화 마그네슘등은 성형물의 표면에 자동으로 형성되어 고체화 됨으로 골재의 외피에 피막이 형성되어 내부가 공동에 의하여 가벼우면서 피막층을 형성하는 피막에 의하여 압축강도를 높여주게 되는 것이다.At this time, the bunker C oil injected for kneading the material binds the rotary kiln 8 with oxygen liberated from the oxides contained in the clay by the temperature of 1150 to 1200 占 폚 when the intermediate material passes, The iron contained in the clay is melted and separated and discharged in a state in which oxygen is deprived by high temperature, and calcium oxide, magnesium oxide, etc. are automatically formed on the surface of the molding and solidified, And the inner portion is lightened by the cavity, and the compressive strength is increased by the coating forming the coating layer.

따라서, 상기와 같이 성형된 본 발명인 골재의 특성은 압축강도가 304kg/㎠ 이상이며 열전도율이 0.2 이하이고 흡음율이 60dB이상 (1250Hz 일 때 손실율)이며, 비중이 1.1∼1.3 이내의 특성을 지니게 되는 것이다.Therefore, the aggregate of the present invention is characterized in that the aggregate has a compressive strength of 304 kg / cm 2 or more, a thermal conductivity of 0.2 or less, a sound absorption rate of 60 dB or more (loss rate at 1250 Hz), and a specific gravity of 1.1 to 1.3 .

이와같이 본 발명은 선발명에서 발생되는 1·2차 소성공정을 1차의 소성공정으로 단축시키고 부재료의 종류를 절감하여 단시간내에 골재를 성형함으로써 생산성을 높일 수 있음은 물론 에너지 절감효과를 가져오고 양질의 경량골재를 생산할 수 있는 발명이다.As described above, the present invention can shorten the primary and secondary firing processes generated in the selection name to the first firing process, reduce the kinds of the sub materials, mold the aggregate in a short time, thereby improving the productivity, Of lightweight aggregate.

Claims (2)

산화규소(SiO2), 산화 알루미늄(Al2O3), 산화칼륨(CaO), 산화철(Fe2O3), 산화 마그네슘(MgO3)를 혼합기(2)에 의해 혼합시켜준 뒤 물탱크(3)로부터 공급되는 물과 벙커C유와 함께 콘베어(4)를 거치면서 반죽되고, 반죽된 반죽물을 터브레이터(5)를 거치면서 1-3mm 의 크기로 분리시켜 약 1150-1200℃의 온도를 가지는 로터리키른(8)내에서 약 5분간 가열시켜 산화철이 산소와 철로 분리되어 산소는 벙커C유와 결합되어 이산화탄소로 팽윤되고, 철은 분리 배출시켜 산화알루미늄과 산화칼슘이 유리되어 성형된 중간재를 폭발시켜 입자가 100-200로 팽윤시켜 준 뒤 상기 팽윤 조성된 입자들이 고열로 인해 연화되는 것을 방지하기 위해 냉각로(10)기에 의해 냉각되므로서 성형된 것을 특징으로 하는 외피에 피막이 형성된 경량골재 제조방법.The mixture is mixed with silicon oxide (SiO 2 ), aluminum oxide (Al 2 O 3 ), potassium oxide (CaO), iron oxide (Fe 2 O 3 ) and magnesium oxide (MgO 3 ) 3 and the bunker C oil, and the kneaded material is separated into a size of 1-3 mm while passing through the turbulator 5, and the kneaded material is cooled to a temperature of about 1150-1200 ° C , The iron oxide is separated into oxygen and iron so that the oxygen is combined with the bunker C oil to swell with carbon dioxide and the iron is separated and discharged so that aluminum oxide and calcium oxide are liberated to form an intermediate product Lt; RTI ID = 0.0 > 100-200 < , And then cooled by a cooling furnace (10) in order to prevent the swollen particles from being softened due to high heat after the swollen particles are swelled. 산화규소(SiO2) 70, 산화 알루미늄(Al2O3) 15, 산화칼륨(CaO) 2.4, 산화철(Fe2O3) 2, 산화 마그네슘(MgO3) 0.6의 점토에 물 9%, 벙커C유 1의 조성비로 혼합시켜 된 것을 특징으로 하는 외피에 피막이 형성된 경량골재.Silicon oxide (SiO 2) 70 , Aluminum (Al 2 O 3) 15 oxide , Potassium oxide (CaO) 2.4 , Iron oxide (Fe 2 O 3 ) 2 , Magnesium (MgO 3) 0.6 Oxidation Of clay, 9% water, bunker C oil 1 Wherein the lightweight aggregate has a coating on the outer skin.
KR1019960020088A 1996-06-05 1996-06-05 Light weight aggregate and the method of producing thereof KR100208778B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100884716B1 (en) * 2008-07-24 2009-02-20 (주)이진엔지니어링 Apparatus for transferring powder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100884716B1 (en) * 2008-07-24 2009-02-20 (주)이진엔지니어링 Apparatus for transferring powder

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