KR100928446B1 - Method for manufacturing non-combustible insulation using waste lime - Google Patents
Method for manufacturing non-combustible insulation using waste lime Download PDFInfo
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- KR100928446B1 KR100928446B1 KR1020080017685A KR20080017685A KR100928446B1 KR 100928446 B1 KR100928446 B1 KR 100928446B1 KR 1020080017685 A KR1020080017685 A KR 1020080017685A KR 20080017685 A KR20080017685 A KR 20080017685A KR 100928446 B1 KR100928446 B1 KR 100928446B1
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- waste lime
- waste
- combustible
- insulation
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- 239000002699 waste material Substances 0.000 title claims abstract description 40
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 38
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 38
- 239000004571 lime Substances 0.000 title claims abstract description 38
- 238000009413 insulation Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 22
- 239000011230 binding agent Substances 0.000 claims abstract description 18
- 229910001562 pearlite Inorganic materials 0.000 claims abstract description 14
- 238000010304 firing Methods 0.000 claims abstract description 11
- 238000010583 slow cooling Methods 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000005187 foaming Methods 0.000 claims abstract description 7
- 239000011810 insulating material Substances 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 13
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 229910001868 water Inorganic materials 0.000 claims description 10
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 3
- 239000004604 Blowing Agent Substances 0.000 claims description 2
- 239000004566 building material Substances 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000010451 perlite Substances 0.000 abstract description 2
- 235000019362 perlite Nutrition 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000003337 fertilizer Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 240000006891 Artemisia vulgaris Species 0.000 description 2
- 235000003261 Artemisia vulgaris Nutrition 0.000 description 2
- 241001474374 Blennius Species 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 235000009051 Ambrosia paniculata var. peruviana Nutrition 0.000 description 1
- 235000003097 Artemisia absinthium Nutrition 0.000 description 1
- 235000017731 Artemisia dracunculus ssp. dracunculus Nutrition 0.000 description 1
- 241001674044 Blattodea Species 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000001138 artemisia absinthium Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000010805 inorganic waste Substances 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000005332 obsidian Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000019351 sodium silicates Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- 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
-
- 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
- C04B14/14—Minerals of vulcanic origin
- C04B14/18—Perlite
-
- 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
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
Abstract
본 발명은 폐석회를 이용한 불연단열재 제조 방법에 관한 것으로, 화학 공장에서 폐기물로 생성되는 폐석회를 펄라이트와 바인더를 혼합하여 발포하고 소성함으로써, 흡음성과 단열성 및 무기성 원료에 의한 불연성과 내열성을 가지는 양질의 건축용 자재 등 다양한 산업분야에서 활용할 수 있는 폐석회를 이용한 불연단열재 제조 방법에 관한 것이다.The present invention relates to a method for producing a non-combustible insulating material using waste lime, and has a sound absorption, heat insulation, and non-combustible and heat-resistant properties by inorganic raw materials by foaming and baking waste lime produced as waste in a chemical plant by mixing a pearlite and a binder The present invention relates to a method for manufacturing non-combustible insulation using waste lime, which can be used in various industrial fields such as high quality building materials.
본 발명에 따르면, 폐석회 30~60중량％, 펄라이트 20~50중량％, 바인더 10~20중량％를 혼합하는 단계; 성형하는 단계; 건조로에서 발포 및 건조시키는 단계; 800~1,000℃의 소성로에서 소성시키는 단계; 서냉룸에서 서냉시키는 단계;를 포함하여 구성된 폐석회를 이용한 불연단열재 제조 방법이 제공된다.According to the invention, the step of mixing 30 to 60% by weight of waste lime, 20 to 50% by weight perlite, binder 10 to 20% by weight; Molding; Foaming and drying in a drying furnace; Firing in a kiln at 800 to 1,000 ° C; It is provided with a method for producing a non-combustible insulation using waste lime comprising a; slow cooling in a slow cooling room.
Description
본 발명은 폐석회를 이용한 불연단열재 제조 방법에 관한 것으로, 화학 공장에서 폐기물로 생성되는 폐석회를 펄라이트와 바인더를 혼합하여 발포하고 소성함으로써, 흡음성과 단열성 및 무기성 원료에 의한 불연성과 내열성을 가지는 양질의 건축용 자재 등 다양한 산업분야에서 활용할 수 있는 폐석회를 이용한 불연단열재 제조 방법에 관한 것이다.The present invention relates to a method for producing a non-combustible insulating material using waste lime, and has a sound absorption, heat insulation, and non-combustible and heat-resistant properties by inorganic raw materials by foaming and baking waste lime produced as waste in a chemical plant by mixing a pearlite and a binder The present invention relates to a method for manufacturing non-combustible insulation using waste lime, which can be used in various industrial fields such as high quality building materials.
폐석회는 화학 공장 등에서 발생하는 강알카리성 무기 폐기물로, 년간 발생량이 수십톤 이상 대량 발생되므로, 일부 시멘트나 비료 등으로 재활용되고 대부분이 복토재로 사용되거나 매립되어 환경 오염을 유발시키고 있다. 따라서 방치되는 폐석회를 재활용하는 방안이 절실하며, 이를 위한 것으로 아래와 같은 발명들이 있다.Waste lime is a strong alkaline inorganic waste produced in chemical plants, and is generated in a large amount of several tens of tons or more per year, and is recycled as some cement or fertilizer, and most of it is used as a cover material or landfill, causing environmental pollution. Therefore, there is an urgent need to recycle the waste lime that is left unattended.
[문헌 1] 한국 특허공개 제10-2007-0076162호, 2007.07.24[Document 1] Korean Patent Publication No. 10-2007-0076162, 2007.07.24
[문헌 2] 한국 특허공개 제10-2002-0078993호, 2002.10.19[Patent 2] Korean Patent Publication No. 10-2002-0078993, 2002.10.19
상기의 [문헌 1]은 폐석회를 입경 600㎛ 크기로 분쇄하고, 이를 200℃~300℃에서 1~2시간 건조시킨 후 분말화하여 석회비료로 제조하는 방법이다. 이는 폐석회내의 비료성분을 이용하는 것으로 토양의 산도를 조절하여 개량시키고 식물의 생육에도 기존의 석회비료보다도 효과가 뛰어나며, 동시에 환경오염문제를 해결할 수 있는 효과가 있는 발명이다.[Document 1] is a method of pulverizing the waste lime to a particle size of 600㎛ size, dried it at 200 ℃ ~ 300 ℃ for 1 to 2 hours and then powderized to produce a lime fertilizer. This is an invention that uses the fertilizer component in the waste lime to improve the acidity of the soil and improve the growth of the plant than the existing lime fertilizer, and at the same time solve the environmental pollution problem.
그리고 [문헌 2]는 폐석회에 폐종이, 짚가루, 해초액, 쑥가루, 밀가루, 진흙, 가루 접착제, 시멘트를 혼합하여 건축자재를 제조는 방법으로서, 종전의 동일한 제품보다 무게가 가벼워 취급과 시공이 용이하고, 해초액이 속과 표면에 코팅막을 형성하여 방수성이 뛰어나며, 주성분이 폐석회이므로 내화성이 우수하고, 염화칼슘이 함유되어 바퀴벌레 쥐, 개미 등 방충효과가 튀어나며, 종이와 짚단이 함유되어 방음효과가 뛰어나고, 쑥등 재료에 따라 색상과 다양한 향을 낼 수 있고, 천연 폐재료를 재활용하므로 환경문제를 해결할 수 있는 효과가 있다.[2] is a method for manufacturing construction materials by mixing waste paper, straw powder, seaweed solution, wormwood powder, flour, mud, powder adhesive, and cement with waste lime, which is lighter in weight than conventional products. It is easy to install, and seaweed solution forms coating film on the inside and the surface, and it is excellent in water resistance. Its main ingredient is waste lime, which is excellent in fire resistance, and it contains calcium chloride, and insect repellent effect such as cockroach rat, ant, and paper and hay bales. The soundproof effect is excellent, it can give color and various scents according to the materials such as mugwort, and it is effective to solve environmental problems by recycling natural waste materials.
상기에서 살펴본 바와 같이 산업 현장에서 폐출되는 폐석회의 양이 상당하고, 이는 대부분 방치되거나 매립 등으로 처리되고, 일부만 비료나 건자재 등으로 재활용되고 있는 실정이다. 이와 같이 그 활용도가 낮은 것은 재활용되는 용도가 극히 제한되거나 수요가 한정된 이유이다.As described above, the amount of waste lime discharged from industrial sites is considerable, and this is mostly left untreated or treated as landfill, and only a part of it is recycled as fertilizer or building materials. Such low utilization is the reason that the use for recycling is extremely limited or the demand is limited.
따라서 본 발명은 수요가 많은 건축자재로 활용할 수 있도록 함으로써 매립 등으로 폐기되어 환경오염의 문제점을 야기하는 폐석회를 효율적으로 재활용함에 목적이 있다. 이를 위해 본 발명은 폐석회에 포함된 무기질의 성분을 이용하여 불연단열재의 건축자재료로 활용함으로써, 폐석회의 활용도를 극대화할 수 있게 된다.Accordingly, an object of the present invention is to efficiently recycle waste lime that is disposed of as a landfill, thereby causing problems of environmental pollution by enabling use as a building material with high demand. To this end, the present invention by using the inorganic components contained in the waste lime as a building material of the non-combustible insulation, it is possible to maximize the utilization of the waste lime.
상기 목적을 달성하기 위하여, 폐석회와 펄라이트 및 바이더를 일정 중량비로 혼합하고, 건조로에서 바인더를 발포시킴과 동시에 순간 건조시키며, 소성로에서 소성시킨 후 서냉로에서 서냉시킴으로써 경량, 불연 및 단열의 효과가 있는 건축용 자재를 제조하게 된다.In order to achieve the above object, waste lime, perlite and binder are mixed in a certain weight ratio, the binder is foamed in a drying furnace and instantaneously dried, and then fired in a kiln and then slowly cooled in a slow cooling furnace, thereby reducing the effects of light weight, nonflammability and insulation. Manufacture building materials.
이와 같이 폐석회를 사용하여 불연단열재로 재활용함으로써, 대량으로 발생 되는 폐석회의 매립 등으로 발생되는 환경오염 문제 등을 해소할 수 있게 된다. 그리고 미세 공극이 많고 매우 경량인 펄라이트를 이용하고, 바인더로 결합 및 발포됨으로써 매우 강한 강도와 경량화를 가짐과 동시에, 재료 자체의 미세 기공과 바인더 자체의 발포에 의해 형성된 미세 기공에 의해 단열성, 방음성, 제습 및 가습의 효과가 뛰어난 건축용 자재로 활용될 수 있게 된다.As such, by using the waste lime as a non-combustible insulation, it is possible to solve environmental pollution problems caused by the landfill of waste lime generated in large quantities. In addition, the use of pearlite, which has a lot of fine pores and is very lightweight, is combined and foamed with a binder to have a very strong strength and light weight, and at the same time, the thermal insulation, sound insulation, Dehumidification and humidification effect can be used as an excellent building material.
본 발명의 폐석회를 이용한 불연단열재는 폐석회 30~60중량％, 펄라이트 20~50중량％, 바인더 10~20중량％가 혼합되어, 발포 및 소성되어 일정 형상을 가짐을 특징으로 한다.The non-combustible heat insulating material using waste lime of the present invention is characterized in that 30 to 60% by weight of waste lime, 20 to 50% by weight of pearlite, and 10 to 20% by weight of a binder are mixed, foamed and calcined to have a certain shape.
이와 같은 불연단열재는 폐석회를 이용함으로써 산업폐기물의 재활용하는 의미가 있다. 폐석회는 CaCo3, CaO, MgO, CaCl2, CaSO4, Fe2O3, Al2O3, NaCl, SiO2, 수분을 포함한다.Such non-combustible insulation has the meaning of recycling industrial waste by using waste lime. Waste lime includes CaCo 3 , CaO, MgO, CaCl 2 , CaSO 4 , Fe 2 O 3 , Al 2 O 3 , NaCl, SiO 2 , water.
폐석회는 복합비료를 생산하는 과정에서 부산물로 발생되는 폐기물로서, 년간 100만톤 이상 발생되고, 계속 증가되는 추세에 있다. 따라서 본 발명은 이를 재활용하는 기술로서 매우 큰 의미를 가진다.Waste lime is a waste produced as a by-product during the production of complex fertilizers. It is generated more than 1 million tons per year and continues to increase. Therefore, the present invention has a great meaning as a technology for recycling it.
그리고 펄라이트는 점성의 화산용암(흑요석, 진주암, 승지암 등)이 지표의 호수로 흘러들어 급냉된 것이다. 그러나 일반적으로는 상기 펄라이트를 870℃ 이상으로 가열하여 본래 부피의 4~20배까지 팽창시킨 것을 펄라이트라 하고, 본 발명에 서도 이와 같이 팽창된 것을 펄라이트라 칭하기로 한다.Pearlite is a quench of viscous volcanic lava (obsidian, pearlite, victory rock, etc.) flowing into the surface lakes. In general, however, the pearlite is heated to 870 ° C. or more and expanded to 4 to 20 times its original volume. The pearlite is referred to as pearlite in the present invention.
따라서 원석에 포함된 수분함량에 의해 팽창된 펄라이트는 미세 기공이 형성되어 단열, 보온, 흡음 등의 목적으로 경량골재, 단열재로 이용되고, 충진재, 몰탈, 플라스터 골재로 사용된다.Therefore, the pearlite expanded by the moisture content contained in the ore is used as a light weight aggregate, a heat insulating material for the purpose of thermal insulation, heat insulation, sound absorption, etc. are used as a filler, mortar, plaster aggregate.
이와 같은 펄라이트는 본 발명에서는 폐석회와 바인더와 함께 사용되어 그 효과가 더욱더 향상된다. 즉 폐석회의 경량성과, 바인더의 결합력 및 발포에 의한 경량화가 건축자재로서의 경량화를 촉진하고 더구나 무기 원료들에 의해 불연, 내열, 단열 등의 효과를 가져 오게 된다. 즉, 펄라이트는 무게가 가볍고, 낮은 열전도율에 의해 단열성이 뛰어나며, 화학적으로 중성이고, 불연성 무기질로 이루어져 화재시에도 독성이 발생하지 않으며, 극저온과 극고온에서도 사용이 가능하다.Such a pearlite is used together with waste lime and a binder in the present invention, the effect is further improved. That is, the light weight of waste lime and the binding force of the binder and the weight reduction by foaming promote the weight reduction as a building material, and furthermore, the inorganic raw materials have the effect of non-combustibility, heat resistance and heat insulation. That is, the pearlite is light in weight, has excellent thermal insulation by low thermal conductivity, is chemically neutral, and is composed of non-combustible minerals, and thus does not generate toxicity even in a fire, and can be used even at cryogenic temperatures and extremely high temperatures.
그리고 바인더는 무기 조성물로서, 강력한 접착제의 역할과 발포제의 역할을 하는 것으로, 탄산칼륨 10~30중량％, 물 20~40중량％, 물유리 40~60중량％가 혼합된 것이다.The binder is an inorganic composition, which serves as a strong adhesive and a blowing agent, in which 10 to 30% by weight of potassium carbonate, 20 to 40% by weight of water, and 40 to 60% by weight of water glass are mixed.
상기와 같은 폐석회를 이용한 불연단열재는 경량골재, 흡음단열재, 천정보드 등의 건축용으로 사용되고, 보온과 보냉을 위한 단열재, 필터, 흡유제 등의 산업용으로 사용된다.Non-combustible insulation using waste lime as described above is used for the construction of lightweight aggregates, sound-absorbing insulation materials, fabrics, etc., and is used in industrial applications such as insulation, filters, oil absorbents for insulation and cold insulation.
이와 같은 불연단열재는 아래와 같은 단계로 제조된다.Such incombustible insulation is manufactured in the following steps.
먼저, 재료를 혼합하는 제1단계로서, 폐석회 30~60중량％, 펄라이트 20~50중량％, 바인더 10~20중량％를 혼합하는 단계이다.First, as a first step of mixing the materials, 30 to 60% by weight of waste lime, 20 to 50% by weight of pearlite, and 10 to 20% by weight of the binder are mixed.
여기서 사용되는 바인더는 무기접착제 및 발포제로서, 탄산칼륨 10~30 중량％, 물 20~40중량％, 물유리 40~60중량％를 혼합하여 사용한다. 물유리에 포함된 물의 함량은 물유리 전체 중량에 대하여 10~30중량％를 가진다. 따라서 본 발명에서 물유리라 함은 물유리 자체가 가지는 함수량을 포함한다. 그리고 바인더의 제조시에 추가되는 물은 물유리에 포함된 물과는 별도의 것으로 한다.The binder used here mixes and uses 10-30 weight% of potassium carbonate, 20-40 weight% of water, and 40-60 weight% of water glass as an inorganic adhesive agent and a foaming agent. The water content in the water glass is 10 to 30% by weight based on the total weight of the water glass. Therefore, the water glass in the present invention includes the water content of the water glass itself. And water added during the manufacture of the binder is to be separate from the water contained in the water glass.
상기의 바인더는 무기물이 혼합된 것으로, 다른 물질을 접착시키는 역할과, 건조 및 소성시에 미세 기공을 형성시키는 역할을 하게 된다.The binder is a mixture of inorganic materials, serves to bond other materials, and serves to form fine pores during drying and firing.
혼합은 스크류 타입의 혼합기를 이용하여 연속 혼합함이 바람직하다. 그리고 폐석회는 혼합 전에 선별하는 과정을 거쳐, 건조 및 파쇄하여 사용한다. 폐석회 파쇄의 정도는 100~150 매쉬 정도가 적당하다.Mixing is preferably continuous mixing using a screw type mixer. Waste lime is used after being sorted before mixing, drying and crushed. Waste lime crushing is suitable for 100 ~ 150 mesh.
제2단계는 일정한 형상으로 성형하는 단계이다. 성형은 최종 제품의 형상으로 성형할 수도 있고, 판재의 경우 넓게 하여 후속 단계에서 절단할 수도 있다. 따라서 성형 단계에서는 후속 단계의 건조와 발포에 적합한 두께나 넓이 등을 고려하면 된다.The second step is a step of forming into a certain shape. The molding may be molded into the shape of the final product or, in the case of a sheet, may be widened and cut in subsequent steps. Therefore, in the forming step, it is necessary to consider the thickness or the width suitable for the drying and foaming of the subsequent step.
성형기의 구조 또한 성형하고자 하는 형상에 따라 다양할 수 있는데, 판재로 성형하는 경우 상하의 롤러로 연속 성형할 수 있고, 일정한 형상을 가진 경우는 형틀에서 성형할 수도 있다.The structure of the molding machine may also vary according to the shape to be molded. In the case of forming into a sheet, the mold may be continuously formed by upper and lower rollers.
제3단계는 건조로에서 발포 및 건조시키는 단계이다. 건조로는 마이크로웨이브를 발생시켜 바인더를 순간 발포 및 건조시키는 구조를 가진다. 즉 성형된 재료가 벨트 컨베이어에 의해 이동되면서 상부에 설치된 마그네트론에서 발생된 마이크로웨이브에 의해 건조되고, 이 때 바인더가 발포되어 미세 기공을 형성시키게 된다.The third step is foaming and drying in a drying furnace. The drying furnace has a structure in which microwaves are generated to instantaneously foam and dry the binder. That is, the molded material is moved by the belt conveyor and dried by the microwave generated from the magnetron installed at the top, and at this time, the binder is foamed to form fine pores.
이와 같이 마이크로웨이브로 건조시킴으로써 순간 건조가 가능하고, 이 때 최대의 기포가 발생되어 단열재로써의 품질을 높일 수 있게 된다. 그리고 순간 건조에 의하여 비틀림과 크랙 등의 발생을 방지하게 된다.In this way, by drying with a microwave, instant drying is possible, and at this time, the largest bubbles are generated to improve the quality as a heat insulating material. And instantaneous drying prevents the occurrence of torsion and cracks.
건조로의 온도는 재료의 함수율에 비례하여 높아질 수 있으나 통상 150℃ 이상을 유지시키고, 시간은 성형된 재료의 형상이나 두께 등에 따라 달라지므로 특정할 수는 없다. 따라서 성형된 재료의 상태에 따라 건조로를 지나는 시간을 조절하거나 건조로의 길이를 조절하여 건조의 정도를 정확히 조절하면 된다.The temperature of the drying furnace may be increased in proportion to the moisture content of the material, but is usually maintained at 150 ° C. or higher, and the time may not be specified because it depends on the shape or thickness of the molded material. Therefore, the degree of drying may be precisely controlled by adjusting the time passing through the drying furnace or adjusting the length of the drying furnace depending on the state of the molded material.
그리고 건조로를 거친 제품을 일정 크기로 절단하여 다음의 소성단계를 거칠 수도 있고, 그대로 소성 단계를 거칠 수 있는데, 이는 제품의 형상 등에 따라 달라지는 것이므로 부가적인 단계이다.And after cutting the product through the drying furnace to a certain size may be subjected to the next firing step, as it may be subjected to the firing step, which is an additional step because it depends on the shape of the product.
제4단계는 800~1,000℃의 소성로에서 소성시키는 단계이다. 소성로는 터널 타입일 수 있고, 벨트 컨베이어 또는 롤러 타입으로 구성할 수 있다. 따라서 건조된 제품이 벨트 컨베이어나 롤러에 의해 이동되면서 소성된다. 그리고 소성 시간은 소성로에서의 체류시간으로 조절하고, 이를 위하여 이동되는 시간을 조절하면 된다. 즉, 롤러 또는 벨트의 회전속도 또는 이동속도의 조절에 의하고, 이 또한 제품의 형상이나 두께 등의 상태에 따라 소성 시간이 달라질 수 있으므로 특정할 수는 없다.The fourth step is to bake in a kiln at 800 ~ 1,000 ℃. The kiln may be of tunnel type and may be of belt conveyor or roller type. Therefore, the dried product is fired while being moved by a belt conveyor or a roller. And the firing time is adjusted to the residence time in the kiln, for this purpose it is necessary to adjust the moving time. That is, by adjusting the rotational speed or the moving speed of the roller or the belt, this also can not be specified because the firing time may vary depending on the shape or thickness of the product.
소성단계를 마치면, 연마와 표면처리를 할 수 있다. 연마는 롤러타입의 연마기를 사용하고, 소성된 제품이 판재일 경우 적합니다. 그리고 제품의 표면에 코팅 액을 스프레이할 수 있는데, 이 경우는 규산나트륨 40~60중량％와, 물 40~60중량％의 비율로 혼합한 물유리를 스프레이한다. 물유리는 투명하기 때문에 제품의 원색을 살리고 표면을 깨끗하고 견고하게 하는 역할을 한다.After the firing step, polishing and surface treatment can be carried out. Grinding is done using roller type grinding machine, and it is suitable when the fired product is plate. And a coating liquid can be sprayed on the surface of a product, In this case, the water glass mixed at the ratio of 40-60 weight% of sodium silicates and 40-60 weight% of water is sprayed. Since water glass is transparent, it plays a role in making the product's primary color and surface clean and firm.
제5단계는 서냉룸에서 서냉시키는 단계이다. 서냉은 별도의 냉각 장치를 구비하지 않으며, 박스형의 공간이면 된다. 따라서 소성 후 소성 온도로부터 서서히 자연 냉각시킨다. 서냉 또한 건조로나 소성로와 같이 그 길이를 조절하여 서냉의 정도를 조절하게 된다.The fifth step is a slow cooling in the slow cooling room. Slow cooling does not have a separate cooling device, but may be a box-shaped space. Therefore, it naturally cools slowly from the firing temperature after firing. Slow cooling also controls the degree of slow cooling by adjusting the length, such as drying furnaces or firing furnaces.
그리고 서냉 단계에서 표면을 연마하거나, 물유리를 스프레이 하거나, 표면 연마와 물유리 스프레이를 함께 행함으로써, 연마와 코팅의 효과를 더욱 촉진할 수 있다. 이는 냉각 후보다 연마가 보다 용이하고, 물유리 코팅의 경우 별도의 건조를 거칠 필요가 없이 자체 열에 의해 건조되어 경화되는 특징을 이용한 것이다.In the slow cooling step, by polishing the surface, spraying water glass, or performing surface polishing and water glass spraying together, the effect of polishing and coating can be further promoted. This is easier to grind than after cooling, and in the case of the water glass coating, it is used without drying through the heat of its own, without having to go through a separate drying is used.
상기의 단계를 거쳐 제조된 불연단열재는 아래와 같은 시험에 의해 그 효과가 뛰어난 것으로 입증되었으며, 시험은 한국 건자재 시험 연구원에서 이루어졌다.The non-combustible insulation prepared through the above steps was proved to be excellent by the following test, and the test was conducted by the Korea Building Materials Testing Institute.
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| KR20050033352A (en) * | 2003-10-06 | 2005-04-12 | 노병대 | Noninflammable composition for adiabatic material, adiabatic material using thereit and the preparation method of the adiabatic material |
| KR20060012497A (en) * | 2004-08-03 | 2006-02-08 | 주식회사 태영이엠씨 | Foaming agent and method for preparing heat insulating materials by using the same |
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2008
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050033352A (en) * | 2003-10-06 | 2005-04-12 | 노병대 | Noninflammable composition for adiabatic material, adiabatic material using thereit and the preparation method of the adiabatic material |
| KR20060012497A (en) * | 2004-08-03 | 2006-02-08 | 주식회사 태영이엠씨 | Foaming agent and method for preparing heat insulating materials by using the same |
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