KR100862917B1 - Process of producing cement clinker and cement using lcd glass, and cement produced the process - Google Patents
Process of producing cement clinker and cement using lcd glass, and cement produced the process Download PDFInfo
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- KR100862917B1 KR100862917B1 KR1020080058344A KR20080058344A KR100862917B1 KR 100862917 B1 KR100862917 B1 KR 100862917B1 KR 1020080058344 A KR1020080058344 A KR 1020080058344A KR 20080058344 A KR20080058344 A KR 20080058344A KR 100862917 B1 KR100862917 B1 KR 100862917B1
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- lcd waste
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- 239000004568 cement Substances 0.000 title claims abstract description 141
- 239000011521 glass Substances 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000002699 waste material Substances 0.000 claims abstract description 108
- 239000002994 raw material Substances 0.000 claims abstract description 41
- 239000000203 mixture Substances 0.000 claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 claims abstract description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 230000015271 coagulation Effects 0.000 claims abstract description 7
- 238000005345 coagulation Methods 0.000 claims abstract description 7
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 6
- 238000001354 calcination Methods 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000010440 gypsum Substances 0.000 claims abstract description 3
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- 235000019738 Limestone Nutrition 0.000 claims description 7
- 239000006028 limestone Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract description 11
- 239000000377 silicon dioxide Substances 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 238000006114 decarboxylation reaction Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 16
- 238000013461 design Methods 0.000 description 15
- 238000004458 analytical method Methods 0.000 description 12
- 229910004298 SiO 2 Inorganic materials 0.000 description 10
- 229910001385 heavy metal Inorganic materials 0.000 description 9
- 239000004576 sand Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000010881 fly ash Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002734 clay mineral Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000010169 landfilling Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 239000010754 BS 2869 Class F Substances 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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- 230000007423 decrease Effects 0.000 description 1
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- 238000011156 evaluation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
-
- 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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/04—Alkali metal or ammonium silicate cements ; Alkyl silicate cements; Silica sol cements; Soluble silicate cements
-
- 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
-
- 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
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
Abstract
Description
본 발명은 LCD폐유리의 재활용 방법에 관한 것으로서, LCD폐유리를 시멘트의 원재료로 이용한 시멘트 관련 발명에 관한 것에 관한 것이다.The present invention relates to a method for recycling LCD waste glass, and to a cement-related invention using the LCD waste glass as a raw material of cement.
LCD(liquid crystal display)는 2개의 얇은 유리판 사이에 고체와 액체의 중간물질인 액정을 주입하여 상하 유리판위 전극의 전압차로 액정분자의 배열을 변화시킴으로써 명암을 발생시켜 숫자나 영상을 표시하는 일종의 광스위치 현상을 이용한 소자로서, 자기발광성이 없어 후광이 필요하지만 소비전력이 적고, 휴대용으로 편리해 널리 쓰이는 평판 디스플레이의 일종이다.LCD (liquid crystal display) is a kind of light that displays numbers or images by generating contrast by injecting a liquid crystal, which is an intermediate between solid and liquid, between two thin glass plates and changing the arrangement of liquid crystal molecules by the voltage difference between the electrodes on the upper and lower glass plates. It is a kind of flat panel display that is widely used because it uses a switch phenomenon.
최근에는 각종 디스플레이 기기들이 개발됨에 따라 LCD를 적용한 각종 제품들이 널리 보급되고 있으며, 이에 따라 LCD폐유리도 날로 증가하고 있는 상황이다. LCD폐유리는 LCD제품 생산공정 중 유리판을 절단하다 남은 자투리에서 파생되거나 버려지는 LCD제품에서 파생된다. 이러한 LCD폐유리는 매립하는 방법으로 폐기 처리하는 것이 일반적이다. 하지만, 폐기장소 부족문제와 폐기비용 증가문제를 해결하는 한편 매립에 따른 환경오염을 방지하기 위해서라도 이제는 LCD폐유리의 재활용 방안에 대한 연구가 필요한 실정이다.Recently, as various display devices have been developed, various products using LCD have been widely spread, and accordingly, LCD waste glass is also increasing day by day. LCD waste glass is derived from LCD products that are either discarded or discarded after cutting the glass plate during the LCD product production process. Such LCD waste glass is generally disposed of by landfilling. However, in order to solve the problem of shortage of disposal site and increase of disposal cost, and to prevent environmental pollution due to landfilling, it is now necessary to study the recycling method of LCD waste glass.
한편 일반 폐유리의 경우에는 재활용 방안이 많이 연구되었으며, 콘크리트나 모르타르에 혼합하는 재생골재로 재활용하는 방법이 가장 대표적이다. 따라서 종래의 일반 폐유리 재활용 방법에 따라 LCD폐유리를 재생골재로 이용한 재활용하는 방법을 고려해 볼 수 있다. 이에 LCD폐유리를 실제 재생골재로 재활용할 수 있는지 확인하기 위해 하기 표 1과 같은 배합설계로 시험하였으며, 시험결과 하기 표 2및 도 1과 같은 결과가 나타났다(시험에 이용된 LCD폐유리는 [발명의 실시를 위한 구체적인 내용]에서 설명하는 물성을 가지는 것과 동일함).On the other hand, in the case of general waste glass, a lot of recycling methods have been studied, and the most common method is to recycle recycled aggregate mixed with concrete or mortar. Therefore, according to the conventional waste glass recycling method can be considered a recycling method using the LCD waste glass as recycled aggregate. In order to determine whether the recycled LCD waste glass can be recycled into the actual recycled aggregate was tested by the compound design as shown in Table 1, the test results were shown in Table 2 and Figure 1 (the LCD waste glass used in the test [ It is the same as having the physical properties described in the following description.
상기 표 2에서와 같이 LCD폐유리를 재생골재로 사용한 경우가 일반 모래를 골재로 사용하는 경우보다 유동성 확보를 위한 혼화제(AD)의 사용량이 약간 증가하는 것으로 나타났고, 동시에 공기량이 다소 감소하는 것으로 나타났으며, 이러한 물성만으로는 LCD폐유리를 재생골재로 사용할 수 있을 것으로 보인다. 하지만, 재령별 압축강도를 측정한 결과 LCD폐유리가 치환된 콘크리트의 경우 일반 모래를 쓴 콘크리트에 비해 압축강도가 현저히 떨어지는 것으로 나타났으며, 나아가 도 1에서와 같이 상부가 팽창하면서 표면에 많은 기포가 발생하고 단위중량 약 6∼7% 정도 감소한 것으로 나타났는 바, LCD폐유리를 재생골재로 콘크리트에 혼입하여 사용한다는 것은 문제가 있다.As shown in Table 2, the use of LCD waste glass as recycled aggregates was found to slightly increase the amount of admixture (AD) used to secure fluidity than when sand was used as aggregate. It appears that these properties alone can be used to recycle the LCD waste glass. However, as a result of measuring the compressive strength of each age, in the case of the concrete replaced with LCD waste glass, the compressive strength was found to be significantly lower than the concrete using sand. Furthermore, as shown in FIG. Has occurred and the unit weight has been reduced by about 6-7%, there is a problem to use the LCD waste glass mixed with concrete as recycled aggregate.
상기와 같은 시험결과에 따라 LCD폐유리는 일반 폐유리의 재활용 방법을 그대로 적용할 수 없다고 할 수 있다. 이에 본 발명자들은 LCD폐유리를 재활용하기 위해 일반 폐유리 재활용 방법에서 전환한 새로운 방법을 모색하게 되었으며, 그 결과로서 LCD폐유리를 시멘트의 원재료로 이용하는 방안을 개발하기에 이르렀다.According to the test results as above, it can be said that LCD waste glass cannot be applied to the recycling method of general waste glass as it is. Accordingly, the present inventors have searched for a new method converted from the general waste glass recycling method to recycle the LCD waste glass, and as a result, the inventors have developed a method of using the LCD waste glass as a raw material of cement.
본 발명은 상기와 같은 종래의 문제를 개선하고자 개발된 것으로서, LCD폐유리의 재활용 방안으로 LCD 폐유리를 시멘트의 원재료로 이용한 시멘트 클링커 및 시멘트의 제조방법과, 그 제조방법으로 제조된 LCD폐유리 시멘트를 제공하는데 기술적 과제가 있다.The present invention was developed to improve the conventional problems as described above, a method of manufacturing cement clinker and cement using the LCD waste glass as a raw material of cement as a recycling method of LCD waste glass, and the LCD waste glass manufactured by the manufacturing method There are technical challenges in providing cement.
본 발명은 상기한 기술적 과제를 해결하기 위해 개발된 것으로서, (a)석회질(CaO), 실리카질(SiO2), 알루미나질(Al2O3), 산화철질(Fe2O3)의 공급원이 되는 시멘트 원재료를 준비하되 LCD폐유리를 시멘트 원재료로 포함하여 준비하는 단계; (b)LCD폐유리를 포함한 시멘트 원재료를 분쇄혼합하는 단계; (c)상기 분쇄혼합물을 600~1000℃로 예열한 후 탈탄산시키는 단계; (d)상기 탈탄산물을 1300~1500℃에서 소성시키는 단계; 그리고, (e)상기 소성물을 1100~1300℃에서 냉각시키는 단계;를 포함하여 구성되는 것을 특징으로 하는 LCD폐유리를 이용한 시멘트 클링커의 제조방법을 제공한다.The present invention was developed to solve the above technical problem, (a) the source of lime (CaO), silica (SiO 2 ), alumina (Al 2 O 3 ), iron oxide (Fe 2 O 3 ) Preparing a cement raw material to be prepared, including the LCD waste glass as a cement raw material; (b) grinding and mixing cement raw materials including LCD waste glass; (c) preheating the pulverized mixture to 600 to 1000 ° C. and then decarbonated it; (d) calcining the decarbonated product at 1300 to 1500 ° C; And, (e) provides a method for producing a cement clinker using the LCD waste glass, characterized in that it comprises a; cooling the calcined product at 1100 ~ 1300 ℃.
또한, 본 발명은 상기의 방법으로 제조된 시멘트 클링커와 응결조절제를 포함한 첨가제를 혼합 분쇄하여 제조되는 것을 특징으로 하는 LCD폐유리를 이용한 시 멘트 제조방법을 제공하며, 나아가 이 방법으로 제조된 LCD폐유리 시멘트를 제공한다. In addition, the present invention provides a cement manufacturing method using an LCD waste glass, characterized in that the cement clinker and the additive containing the coagulation control agent prepared by the above method is mixed and milled, furthermore LCD waste manufactured by this method Provide glass cement.
본 발명에 따르면 다음과 같은 효과가 기대된다.According to the present invention, the following effects are expected.
첫째, 매립 폐기되는 LCD폐유리를 재활용하기 때문에 시멘트 생산원가 절감을 꾀할 수 있으며, 아울러 폐기매립으로 인한 환경오염문제를 방지할 수 있다.First, it is possible to reduce the cost of cement production by recycling LCD waste glass that is disposed of landfill, and also to prevent environmental pollution problems caused by landfill.
둘째, 실리카질과 알루미나질 공급원으로 알칼리성분을 많이 함유한 점토질 광물 대신에 알칼리성분이 거의 없는 LCD폐유리를 이용하기 때문에 알카리-골재반응에 유리한 우수한 품질의 시멘트 클링커를 공급할 수 있다.Secondly, since the LCD waste glass containing almost no alkali is used as a silica and alumina source as an alkali-rich clay mineral, it is possible to supply a good quality cement clinker for the alkali-aggregate reaction.
셋째, 입형이 작으면서 소성열이 작은 LCD폐유리를 시멘트의 원재료로 이용하기 때문에 시멘트 클링커 제조과정에서 에너지 절감을 꾀할 수 있다.Third, the energy saving in the cement clinker manufacturing process can be achieved because LCD waste glass with small granularity and low calcining heat is used as a raw material for cement.
본 발명은 LCD폐유리를 시멘트 제조공정에 투입하여 LCD폐유리를 시멘트의 원재료로 이용한다는데 특징이 있다. 다만, 시멘트가 SiO2, Al2O3, CaO, Fe2O3를 주요성분으로 한다는 점을 감안하여 LCD폐유리가 시멘트의 원재료로 이용가능한지 확인하기 위해 먼저 LCD폐유리의 물성을 확인해 보았으며, 나아가 실제 LCD폐유리를 이용하여 시멘트를 제조해 본 후 그 시멘트가 일정 품질을 가지는지를 확인해 보았 다. 본 발명은 일련의 시험결과로부터 LCD폐유리의 구체적인 재활용 방안을 제시하고 있는 것이다. 다시 말하면, 본 발명은 LCD폐유리의 용도발명에 관한 것이라 할 수 있다. 본 발명에서 시멘트의 원재료로 이용되는 LCD폐유리는, LCD공정에 투입되는 원판 유리의 생산공정 중에서 발생되는 폐유리, LCD 생산공정에서 폐기되는 폐유리, 버려진 LCD제품에서 수집되는 폐유리를 포괄한다. The present invention is characterized by using LCD waste glass as a raw material of cement by injecting the LCD waste glass into the cement manufacturing process. However, considering that cement is composed of SiO 2 , Al 2 O 3 , CaO and Fe 2 O 3 as main ingredients, we first checked the properties of LCD waste glass to check whether it is usable as raw material for cement. Furthermore, after the cement was manufactured using the actual LCD waste glass, it was checked whether the cement had a certain quality. The present invention proposes a concrete recycling method of LCD waste glass from a series of test results. In other words, the present invention relates to the invention of the use of LCD waste glass. LCD waste glass used as a raw material of cement in the present invention encompasses waste glass generated in the production process of the original glass that is put into the LCD process, waste glass discarded in the LCD production process, waste glass collected from discarded LCD products .
1. LCD폐유리의 물성검토1. Property review of LCD waste glass
LCD폐유리를 시멘트의 원재료로 사용할 수 있는지 확인하기 위해 LCD폐유리의 주요성분, 중금속 함유 여부, X-선 회절분석을 실시하였다. In order to confirm whether LCD waste glass can be used as a raw material for cement, the main components of LCD waste glass, heavy metal content, and X-ray diffraction analysis were performed.
상기 표 3에서와 같이 LCD폐유리는 SiO2(60.05%)와 Al2O3(19.60%)를 주요성분으로 함유하고 동시에 중금속은 함유하지 않거나 매우 미량으로 함유하는 것으로 나타났는 바, 시멘트 제조에서 LCD폐유리를 실리카질과 알루미나질의 공급원으로 활용할 수 있는 것으로 추측된다. 특히, LCD폐유리가 종래 실리카질과 알루미나질의 공급원으로 이용되는 점토질 광물(경석 등)에 비해 알칼리 성분인 K2O를 매우 미량으로 함유하고 있는 것으로 확인되었는 바, LCD폐유리는 알칼리-골재반응을 억제할 수 있는 우수한 품질의 시멘트 제조에 이용할 수 있을 것으로 기대된다.As shown in Table 3 above, the LCD waste glass contains SiO 2 (60.05%) and Al 2 O 3 (19.60%) as main components, and at the same time, it does not contain heavy metals or very small amounts. It is speculated that LCD waste glass can be used as a source of silica and alumina. In particular, it has been found that LCD waste glass contains a very small amount of K 2 O, an alkali component, compared to clay minerals (such as pumice), which are conventionally used as silica and alumina sources. It is expected that the present invention can be used to manufacture cement of good quality that can suppress the
한편, 도 2는 LCD폐유리의 X-선 회절분석 결과를 보여주는데, 보는 바와 같이 LCD폐유리는 비정질상태의 유리질과 거의 동일한 상태로 존재함을 알 수 있다. 이 결과로부터 LCD폐유리가 작은 소성열로서 소성될 수 있음을 예상할 수 있다.On the other hand, Figure 2 shows the results of the X-ray diffraction analysis of the LCD waste glass, as can be seen that the LCD waste glass exists in almost the same state as the amorphous glass. It can be expected from this result that the LCD waste glass can be fired with a small amount of firing heat.
2. LCD폐유리를 이용한 시멘트 클링커 및 시멘트2. Cement Clinker and Cement Using LCD Waste Glass
도 3은 본 발명에 따른 시멘트 제조공정을 보여주는데, 보는 바와 같이 본 발명의 시멘트 제조공정은 종래의 시멘트 제조공정과 동일하다. 다만, 시멘트의 원재료로 LCD폐유리를 이용한다는 점에서만 차이가 있다.Figure 3 shows a cement manufacturing process according to the present invention, as shown the cement manufacturing process of the present invention is the same as the conventional cement manufacturing process. The only difference is that LCD waste glass is used as a raw material for cement.
구체적으로 본 발명에서 시멘트 클링커는 (a)석회질(CaO), 실리카질(SiO2), 알루미나질(Al2O3), 산화철질(Fe2O3)의 공급원이 되는 시멘트의 원재료를 준비하되 LCD폐유리를 시멘트의 원재료로 포함하여 준비하는 단계; (b)LCD폐유리를 포함한 시멘트의 원재료를 분쇄혼합하는 단계; (c)상기 분쇄혼합물을 600~1000℃로 예열한 후 탈탄산시키는 단계; (d)상기 탈탄산물을 1300~1500℃에서 소성시키는 단계; (e)상기 소성물을 1100~1300℃에서 냉각시키는 단계;를 수행함으로써 제조되며, 이렇게 제조된 시멘트 클링커를 응결조절제를 포함한 첨가제와 함께 혼합 분쇄하면 시멘트가 제조된다. 상기 응결조절제로는 통상적으로 사용되는 석고를 채택할 수 있으며, 나아가 시멘트의 우수한 물성을 확보하기 위해 슬래그미분말 또는 석회석을첨가제로 이용할 수 있다. Specifically, in the present invention, the cement clinker (a) prepares a raw material of cement which is a source of lime (CaO), silica (SiO 2 ), alumina (Al 2 O 3 ), and iron oxide (Fe 2 O 3 ). Preparing the LCD including waste glass as a raw material of cement; (b) grinding and mixing raw materials of cement including LCD waste glass; (c) preheating the pulverized mixture to 600 to 1000 ° C. and then decarbonated it; (d) calcining the decarbonated product at 1300 to 1500 ° C; (e) cooling the calcined product at 1100 to 1300 ° C .; is prepared by performing, and the cement clinker thus prepared is mixed and ground with an additive including a coagulation regulator to produce cement. As the coagulation regulator, gypsum that is commonly used may be adopted, and further, slag fine powder or limestone may be used as an additive to secure excellent physical properties of cement.
상기 (b)단계에서 시멘트 원재료의 혼합비는 조성설계된 시멘트 조성비로부터 역설계되어 조정되도록 이루어진다. 다시 말해, 제조할 시멘트의 주요성분(석회질(CaO), 실리카질(SiO2), 알루미나질(Al2O3), 산화철질(Fe2O3))에 대한 조성비를 먼저 설계한 다음, 시멘트의 원재료로 채택되는 각 재료별 성분분석 결과와 조성설계된 시멘트 조성비를 토대로 역설계하면 최종적으로 시멘트의 원재료로 채택되는 각 재료의 사용량이 결정되는 것이다. 가령, 조성설계된 시멘트 조성비를 행렬 'A(4×1)'라 하고 시멘트의 원재료로 채택되는 각 재료별 성분분석 결과를 행렬 'B(4×4)'라 하고 시멘트의 원재료로 채택되는 각 재료의 사용량을 행렬 'C(4×1)'라 한다면, A=B·C이므로 C는 B-1·A로서 구할 수 있는 것이다(행렬 'A'와 'B'는 이미 결정된 값이며, 설계변수가 있을 수 있음).In the step (b), the mixing ratio of the raw materials of cement is made to be reverse engineered from the designed cement composition ratio. In other words, the composition ratio for the main components of the cement to be manufactured (calcite (CaO), silica (SiO 2 ), alumina (Al 2 O 3 ), iron oxide (Fe 2 O 3 )) is first designed and then cement If the reverse design is based on the result of the component analysis and the designed cement composition ratio of each material to be used as raw material, the amount of each material used as the raw material of cement is finally determined. For example, the composition designed cement composition ratio is referred to as matrix 'A (4 × 1)' and the component analysis result for each material adopted as raw material of cement is referred to as matrix 'B (4 × 4)'. If the amount of is used as the matrix 'C (4 × 1)', then A can be obtained as B −1 · A since A = B · C (matrices 'A' and 'B' are already determined values and design variables May be present).
다만, 통상적으로 시멘트를 제조할 때 석회질 공급원으로 석회석을 90%이상 사용하는 것을 감안하면, 실리카질과 알루미나질 공급원으로 사용되는 LCD폐유리는 시멘트 원재료 총량에 대하여 0.01~7중량% 정도이면 적당하다.However, considering that limestone is used more than 90% as a lime source when manufacturing cement, LCD waste glass used as a silica and alumina source is preferably about 0.01 to 7% by weight based on the total amount of cement raw materials. .
이하부터는 구체적인 실시예를 통해 본 발명을 살펴본다.Hereinafter, the present invention will be described through specific examples.
[실시예 1] 시멘트 클링커 제조Example 1 Preparation of Cement Clinker
(1)원재료 준비(1) preparation of raw materials
시멘트 클링커 제조를 위해 하기 표 4와 같은 원재료를 준비하였다. 원재료는 LCD폐유리를 제외하고는 통상 시멘트 제조에 이용되는 재료들이다.Raw materials as shown in Table 4 below were prepared for the preparation of cement clinker. Raw materials are materials used in cement production except for LCD waste glass.
(2)조성설계(2) Design
하기 표 5와 같은 조성비로 조성설계를 하였으며, 조성설계는 앞서 살펴본 역설계방법을 따랐다. LCD폐유리 혼합량(0%, 2%, 4%)에 따라 3가지로 조성설계를 수행하였다.The composition design was carried out at the composition ratio as shown in Table 5 below, and the composition design followed the reverse design method described above. Three compositional designs were carried out according to the amount of mixed LCD waste glass (0%, 2%, 4%).
(3)시멘트 클링커 제조(3) cement clinker manufacturers
상기 표 4의 원재료를 상기 표 5와 같이 준비하고 도 3의 제조공정으로 시멘트 클링커를 제조하였다. 시멘트 클링커는 하기 표 6과 같은 온도변화공정(승온->탈산산->승온->소성->냉각)을 진행하여 제조하였으며, 표 6의 온도변화공정은 통상의 시멘트 클링커 제조에서 이루어지는 공정이라 할 수 있다.The raw material of Table 4 was prepared as shown in Table 5, and a cement clinker was prepared by the manufacturing process of FIG. 3. Cement clinker was prepared by the following temperature change process (heating-> deoxidation-> heating-> firing-> cooling) as shown in Table 6. Can be.
(4)시멘트 클링커 분석(4) Cement Clinker Analysis
제조된 시멘트 클링커는 하기 표 7과 같은 결과로 분석되었다. The prepared cement clinker was analyzed with the results as shown in Table 7 below.
상기 표 7에서 보는 바와 같이 LCD폐유리를 혼합하여 제조한 시멘트 클링커나 LCD폐유리를 혼합하지 않은 시멘트 클링커나 화학성분비에서는 큰 차이가 나타나지 않았으며, 이에 LCD폐유리를 혼합하여 시멘트 클링커를 제조하여도 시멘트 품질에는 영향을 미치지 않을 것으로 파악된다. 나아가 LCD폐유리를 혼합한 시멘트 클링커에서 오히려 F/CaO(유리 석회)가 감소하는 것으로 나타났는 바, 풍화현상을 억제할 수 있는 향상된 품질의 시멘트를 제조할 수 있을 것으로 기대된다.As shown in Table 7, the cement clinker produced by mixing LCD waste glass or the cement clinker or chemical composition ratio not mixed with LCD waste glass did not show a big difference.The cement clinker was prepared by mixing LCD waste glass. The cement quality will not be affected. Furthermore, the F / CaO (glass lime) decreases in the cement clinker mixed with LCD waste glass, and thus, it is expected to produce cement of improved quality that can suppress weathering.
[실시예 2] 시멘트 제조Example 2 Cement Preparation
(1)원재료 준비(1) preparation of raw materials
원재료를 하기 표 8과 같이 준비하였다. 본 실시예에서는 LCD폐유리를 0.05중량%로 혼합하였다.Raw materials were prepared as shown in Table 8. In this example, the LCD waste glass was mixed at 0.05% by weight.
(2)시멘트 클링커 제조(2) cement clinker manufacturers
상기 표 8의 원재료를 상기 표 6과 같은 온도변화공정(승온->탈산산->승온->소성->냉각)을 진행하여 시멘트 클링커를 제조하였으며, 제조된 시멘트 클링커는 하기 표 9와 같은 결과로 분석되었다.The raw material of Table 8 was subjected to the temperature change process (heating-> deoxidation-> heating-> firing-> cooling) as shown in Table 6 to prepare a cement clinker, and the resulting cement clinker was obtained as shown in Table 9 below. Was analyzed.
(3)시멘트 제조(3) cement manufacture
상기 표 9의 시멘트 클링커와 첨가제를 혼합분쇄하여 시멘트를 제조하였다. 첨가제의 종류와 첨가량은 하기 표 10과 같다. Cement was prepared by mixing and grinding the cement clinker and the additives of Table 9. Types and amounts of additives are shown in Table 10 below.
본 실시예에 따라 제조된 시멘트는 상기 표 10에서와 같은 성분분석결과가 나왔는데, 이러한 성분분석결과는 종래의 일반적인 시멘트와 비슷하므로 본 발명에 따라 제조된 시멘트 또한 일반 시멘트와 동일하게 이용할 수 있을 것으로 기대된다.The cement prepared according to the present embodiment showed the component analysis results as shown in Table 10. Since the component analysis results are similar to those of the conventional general cement, the cement manufactured according to the present invention may also be used in the same manner as the general cement. It is expected.
[실시예 3] LCD폐유리를 이용한 시멘트의 품질평가[Example 3] Quality Evaluation of Cement Using LCD Waste Glass
LCD폐유리를 이용한 시멘트(LCD폐유리 시멘트)를 일반 시멘트와 마찬가지로 이용가능한지 확인할 필요가 있기에, 본 발명에서는 LCD폐유리 시멘트의 중금속 함유 여부를 조사하고, 아울러 LCD폐유리 시멘트와 일반 시멘트에 대한 콘크리트 물성평가를 비교 수행하였다.It is necessary to check whether the LCD waste glass cement (LCD waste glass cement) is available as in general cement. In the present invention, the LCD waste glass cement is investigated for the presence of heavy metals, and the LCD waste glass cement and concrete for The physical property evaluation was compared and performed.
(1)LCD폐유리 시멘트의 중금속 함유 여부(1) Containing heavy metals in LCD waste glass cement
상기 실시예 2를 통해 제조된 LCD폐유리 시멘트에 대해 중금속 함유 여부를 조사한 결과 하기 표 11과 같이 나타났다.As a result of examining the heavy metals contained in the LCD waste glass cement prepared in Example 2, it was as shown in Table 11.
상기 표 11에서 보는 바와 같이 LCD폐유리 시멘트의 경우 중금속을 미량 함유하는 것으로 확인되었다. 상기와 같은 중금속 함량은 유해성 문제에서 벗어나게 해주는 범위에 해당하며, 이에 본 발명에 따른 LCD폐유리 시멘트는 안전하게 이용할 수 있을 것으로 기대된다.As shown in Table 11, the LCD waste glass cement was found to contain a trace amount of heavy metals. The heavy metal content as described above falls within a range that deviates from the hazard problem, and thus, it is expected that the LCD waste glass cement according to the present invention can be safely used.
(2)콘크리트 물성 비교평가(2) Comparative evaluation of concrete properties
하기 표 12와 같은 배합설계로 시멘트의 종류만을 달리하여 콘크리트를 배합하였다. 시멘트로는 상기 실시예 2에서 제조된 LCD폐유리 시멘트와 일반 시멘트(1종 보통 포틀랜트 시멘트(비중 3.15)) 2가지를 채택하였다. 다만, LCD폐유리를 이용한 시멘트나 일반 시멘트나 하기 표 13에서와 같이 화학적 성분 차이 없이 동일한 것을 채택하였다. In the mixing design as shown in Table 12, only the type of cement was mixed with concrete. As cement, two kinds of LCD waste glass cement and general cement (one type of ordinary portland cement (specific gravity 3.15)) prepared in Example 2 were used. However, cement or general cement using LCD waste glass or the same as in Table 13 below was adopted without any chemical composition difference.
상기와 같은 배합설계에 따라 배합된 콘크리트는 하기 표 14에서 같은 내용으로 콘크리트 물성을 시험하였으며, 그 결과 하기 표 15와 같이 나타났다.Concrete blended according to the blending design as described above was tested for concrete properties in the same manner in Table 14, the results were shown as Table 15 below.
상기 표 15에서 같이, LCD폐유리 시멘트와 일반 시멘트는 콘크리트 물성에서 유사한 경향을 나타냈으며, 특히 LCD폐유리 함유에 상관없이 압축강도에 큰 차이를 나타내지 않았다. 이로부터 본 발명에 따라 제조된 LCD폐유리 시멘트는 일반 시멘트와 동일하게 이용할 수 있을 것으로 기대된다.As shown in Table 15, LCD waste glass cement and general cement showed a similar tendency in the physical properties, in particular, did not show a significant difference in compressive strength regardless of the content of the LCD waste glass. From this it is expected that the LCD waste glass cement prepared according to the present invention can be used in the same way as general cement.
이상에서 본 발명은 실시예를 참조하여 상세히 설명되었으며, 다만 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 상기에서 설명된 기술적 사상을 벗어나지 않는 범위 내에서 여러가지 치환, 부가 및 변형이 가능할 것임은 당연하며, 이와 같은 변형된 실시 형태들 역시 특허청구범위에 의하여 정하여지는 본 발명의 보호 범위에 속하는 것으로 이해되어야 할 것이다.The present invention has been described in detail above with reference to the embodiments, but those skilled in the art to which the present invention pertains will be capable of various substitutions, additions and modifications within the scope without departing from the technical spirit described above. It is to be understood that such modified embodiments also fall within the protection scope of the invention as defined by the claims.
도 1은 LCD폐유리를 골재로 이용한 콘크리트 공시체 사진이다.1 is a photograph of a concrete specimen using the LCD waste glass as aggregate.
도 2는 LCD폐유리의 X-선 회절분석 결과를 보여주는 사진이다.Figure 2 is a photograph showing the X-ray diffraction analysis of the LCD waste glass.
도 3은 본 발명에 따른 시멘트 제조방법을 보여주는 공정도이다.Figure 3 is a process chart showing a cement manufacturing method according to the present invention.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101093105B1 (en) | 2009-04-06 | 2011-12-13 | 현대시멘트 주식회사 | Method for Minimization of hexavalent chromium in cement clinker and cement by the cement clinker |
| KR101755539B1 (en) * | 2014-02-21 | 2017-07-10 | 재단법인영월청정소재산업진흥원 | Method of using the by-product of purified silica |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1045450A (en) * | 1996-07-31 | 1998-02-17 | Meisei Kogyo Kk | Cement composition |
| JP2001342045A (en) * | 2000-05-29 | 2001-12-11 | Taiheiyo Cement Corp | Method of manufacturing cement clinker |
| JP2005047771A (en) * | 2003-07-31 | 2005-02-24 | Denki Kagaku Kogyo Kk | Cement composition |
| JP2006083039A (en) * | 2004-09-17 | 2006-03-30 | Nippon Sheet Glass Co Ltd | Cement composition |
-
2008
- 2008-06-20 KR KR1020080058344A patent/KR100862917B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1045450A (en) * | 1996-07-31 | 1998-02-17 | Meisei Kogyo Kk | Cement composition |
| JP2001342045A (en) * | 2000-05-29 | 2001-12-11 | Taiheiyo Cement Corp | Method of manufacturing cement clinker |
| JP2005047771A (en) * | 2003-07-31 | 2005-02-24 | Denki Kagaku Kogyo Kk | Cement composition |
| JP2006083039A (en) * | 2004-09-17 | 2006-03-30 | Nippon Sheet Glass Co Ltd | Cement composition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101093105B1 (en) | 2009-04-06 | 2011-12-13 | 현대시멘트 주식회사 | Method for Minimization of hexavalent chromium in cement clinker and cement by the cement clinker |
| KR101755539B1 (en) * | 2014-02-21 | 2017-07-10 | 재단법인영월청정소재산업진흥원 | Method of using the by-product of purified silica |
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