KR19980072301A - Basic Refractory Using Shellfish and Its Manufacturing Method - Google Patents
Basic Refractory Using Shellfish and Its Manufacturing Method Download PDFInfo
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- KR19980072301A KR19980072301A KR1019970007040A KR19970007040A KR19980072301A KR 19980072301 A KR19980072301 A KR 19980072301A KR 1019970007040 A KR1019970007040 A KR 1019970007040A KR 19970007040 A KR19970007040 A KR 19970007040A KR 19980072301 A KR19980072301 A KR 19980072301A
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- basic refractory
- calcium oxide
- shellfish
- oxide powder
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Abstract
본 발명은 굴껍질 등의 패각류를 이용하여 산화칼슘-산화마그네슘(CaO-MgO)계의 염기성 내화물과 합성 분말 및 그 제조방법에 관한 것이다. 본 발명의 염기성 내화물은 산화칼슘 및 산화 마그네슘 분말을 포함하는 혼합 분말로 제조된다. 본 발명의 제조공정에는 패각류의 수세 단계, 건조 단계, 분말화 단계, 하소 단계, CaO 및 산화마그네슘 분말과의 혼합 단계, 성형 및 열처리 단계가 포함된다. 본 발명에 따라 제조된 염기성 내화물은 세라믹 제품 등의 가공 생산에 있어서 열처리 공정에서 효과적으로 사용될 수 있다.The present invention relates to basic refractory and synthetic powder of calcium oxide-magnesium oxide (CaO-MgO) system using shells such as oyster shell, and a method for producing the same. The basic refractory of the present invention is made of a mixed powder comprising calcium oxide and magnesium oxide powder. The manufacturing process of the present invention includes a washing step, a drying step, a powdering step, a calcination step, a mixing step with CaO and magnesium oxide powder, a molding and a heat treatment step of shells. The basic refractory prepared according to the present invention can be effectively used in the heat treatment process in the processing production of ceramic products and the like.
Description
본 발명은 세라믹 제품을 가공 생산할 때 열처리 공정에서 사용하는 염기성 내화물 및 그 제조방법에 관한 것으로서, 보다 구체적으로는 수산 양식업 중의 하나인 굴 양식에서 폐기물로서 배출되는 폐각류를 원료로 이용한 염기성 내화물 및 그 제조방법에 관한 것이다.The present invention relates to a basic refractory used in the heat treatment process when producing a ceramic product and a method for manufacturing the same, and more particularly, a basic refractory using as a raw material the waste shellfish discharged as a waste from oyster culture, one of the fishery aquaculture industry, and its It relates to a manufacturing method.
종래의 염기성 내화물의 원료로 산화칼슘(CaO) 또는 산화마그네슘(MgO)이 널리 사용되고 있으나, 이들은 그 원료가 가지는 수화성을 인하여 그 사용범위가 좁고 응용이 어려워 상업화가 어려운 단점을 가지고 있다.Calcium oxide (CaO) or magnesium oxide (MgO) is widely used as a raw material of conventional basic refractory materials. However, these materials have a disadvantage in that their use range is narrow and application is difficult due to the hydration property of the raw materials.
또한, 수화성으로 인하여 사용수명이 짧고 제조원가가 높은 단점을 가지고 있다. 따라서, 본 발명은 Ca원이 풍부하고 또한 굴 양식의 생산량의 증가로 인하여 연안 해양 환경오염원으로 작용하는 굴 껍질과 같은 패각류를 산화마그네슘(MgO)분말과 혼합하고 이 혼합분말을 이용하여 제조된 염기성 내화물을 안출하고자 하는 데 있다.In addition, due to the hydration has a short service life and a high manufacturing cost. Therefore, the present invention is prepared by using a mixed powder of magnesium oxide (MgO) powder and shellfish, such as oyster shells, which are rich in Ca sources and act as a coastal marine environmental pollution source due to an increase in the production of oyster culture. It is to devise a basic refractory.
도 1은 본 발명에 따른 염기성 내화물의 제조 공정도.1 is a manufacturing process diagram of the basic refractory according to the present invention.
도 2는 본 발명에 있어서 산화칼슘 원료로 사용된 패각류의 열분석 결과를 나타내는 도표.Figure 2 is a chart showing the thermal analysis results of shells used as calcium oxide raw material in the present invention.
도 3은 본 발명에 있어서 산화칼슘 원료로 사용된 패각류를 하소한 다음 측정한 XRD 결과를 나타내는 도표.Figure 3 is a table showing the XRD results measured after calcining shellfish used as a calcium oxide raw material in the present invention.
도 4는 본 발명에 따른 산화칼슘-산화마그네슘 염기성 내화물을 전자 현미경으로 확대 촬영한 사진.Figure 4 is an enlarged photograph of the calcium oxide-magnesium oxide basic refractory according to the present invention with an electron microscope.
이하, 첨부 도면을 참조하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1에는 본 발명에 따른 산화칼슘-산화마그네슘(CaO-MgO) 염기성 내화물을 제조하는 공정이 나타나 있다.1 shows a process for preparing a calcium oxide-magnesium oxide (CaO-MgO) basic refractory according to the present invention.
우선, 패각류를 수세하여 염분을 제거하고 천연에서 또는 인공적으로 대략 100℃에서 건조한다. 건조된 패각류는 분쇄기를 이용하여 분쇄한 다음, 800∼100℃에서 4시간 정도 하소하여 산화칼슘 분말을 획득한다. 바람직하게는 하소된 패각류 분말 중에서 입자 크기가 대략 100μm이하의 것을 선별하고 산화마그네슘 분말과 적절한 중량 백분율로 혼합하여 건식 볼 밀링(Ball Milling)을 행한다. 이때, 산화칼슘 분말의 중량 백분율이 50∼70wt%인 것이 바람직하다. 이러한 혼합 분말을 가압성형 방법으로 성형하고 이것을 전기로 또는 가스로 등을 이용하여 1,400∼1,600℃에서 열처리함으로써 염기성 내화물을 제조한다.First, shellfish are washed with water to remove salt and dried at approximately 100 ° C. in nature or artificially. The dried shellfish are pulverized using a grinder and calcined at 800 to 100 ° C. for about 4 hours to obtain calcium oxide powder. Preferably, the calcined shellfish powder has a particle size of about 100 μm or less and is mixed with magnesium oxide powder at an appropriate weight percentage to perform dry ball milling. At this time, it is preferable that the weight percentage of calcium oxide powder is 50-70 wt%. A basic refractory is manufactured by shape | molding this mixed powder by the press molding method and heat-processing it at 1,400-1,600 degreeC using an electric furnace or a gas furnace.
상기와 같은 공정으로 제조된 염기성 내화물의 물성을 일반적인 KS법에 의거한 물성 조사법을 이용하여 조사한 결과가 표 1에 나타나 있다.Table 1 shows the results of investigating the physical properties of the basic refractory prepared by the above process using the physical property investigation method based on the general KS method.
도 2는 본 발명에 있어서의 산화칼슘 분말 원료로 사용된 패각류의 열분석 결과를 나타낸 것이다. 이러한 열분석 결과는 본 발명에 있어서 하소 온도를 결정하는데 유용하게 이용된다.Figure 2 shows the thermal analysis results of shells used as calcium oxide powder raw material in the present invention. These thermal analysis results are useful for determining the calcination temperature in the present invention.
도 3은 본 발명에 있어서의 산화칼슘 원료 분말로 사용된 패각류를 하소한 다음 측정한 XRD(X-선 회절분석) 결과를 나타낸 것이다. 이러한 XRD 결과는 산화칼슘의 결정상을 확인하기 위해서 이용된다.Figure 3 shows the results of XRD (X-ray diffraction analysis) measured after calcining the shells used as the calcium oxide raw material powder in the present invention. This XRD result is used to confirm the crystal phase of calcium oxide.
도 4는 본 발명에 있어서의 산화칼슘-산화마그네슘 염기성 내화물을 전자현미경을 이용해서 확대 촬영하여 측정한 결과를 나타낸 것이다. 이것은 염기성 내화물의 표면상태를 확인하기 위한 것이다.Fig. 4 shows the results obtained by enlarging and photographing the calcium oxide-magnesium oxide basic refractory according to the present invention using an electron microscope. This is to confirm the surface state of the basic refractory.
[표 1]. 본 발명에 따른 염기성 내화물의 물성을 KS 법을 이용하여 측정한 결과TABLE 1 Measurement results of the basic refractory material according to the present invention using the KS method
본 발명에 따라 제조된 염기성 내화물은 수화 저항이 크며, 사용수명이 길고, 경제성이 향상될 수 있으며, 또한 패각류를 원료로서 사용하므로 연안 해양 오염도 감소될 수 있다.The basic refractory prepared according to the present invention has a large hydration resistance, a long service life, economical efficiency can be improved, and the use of shellfish as a raw material can also reduce coastal marine pollution.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970007040A KR19980072301A (en) | 1997-03-04 | 1997-03-04 | Basic Refractory Using Shellfish and Its Manufacturing Method |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019970007040A KR19980072301A (en) | 1997-03-04 | 1997-03-04 | Basic Refractory Using Shellfish and Its Manufacturing Method |
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| KR19980072301A true KR19980072301A (en) | 1998-11-05 |
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| KR1019970007040A KR19980072301A (en) | 1997-03-04 | 1997-03-04 | Basic Refractory Using Shellfish and Its Manufacturing Method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100334654B1 (en) * | 1999-12-06 | 2002-04-27 | 박정수 | Admixure synthesizing method for construction materials by using oyster shell |
| KR100394604B1 (en) * | 2000-11-21 | 2003-08-27 | (주) 금영 | A filler manufacturing method for cement by using the shells of oysters and filler made thereby |
| KR100464666B1 (en) * | 2001-06-07 | 2005-01-03 | 한국해양연구원 | Solidificator Manufacturing Method with Waste Oyster Shell |
| KR100723129B1 (en) * | 2001-08-24 | 2007-05-30 | 주식회사 포스코 | Basic castables for tundish dam block |
| WO2020262726A1 (en) * | 2019-06-24 | 2020-12-30 | 한남대학교 산학협력단 | Composition for eco-friendly industrial materials using shells |
| KR102302131B1 (en) * | 2021-01-08 | 2021-09-14 | 비오엠코스메틱주식회사 | Composition for hair tonic or treating or preventing hair loss |
| KR102611681B1 (en) * | 2022-10-27 | 2023-12-11 | 남택규 | Composition of oister shell and interior panel of ship |
-
1997
- 1997-03-04 KR KR1019970007040A patent/KR19980072301A/en not_active Application Discontinuation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100334654B1 (en) * | 1999-12-06 | 2002-04-27 | 박정수 | Admixure synthesizing method for construction materials by using oyster shell |
| KR100394604B1 (en) * | 2000-11-21 | 2003-08-27 | (주) 금영 | A filler manufacturing method for cement by using the shells of oysters and filler made thereby |
| KR100464666B1 (en) * | 2001-06-07 | 2005-01-03 | 한국해양연구원 | Solidificator Manufacturing Method with Waste Oyster Shell |
| KR100723129B1 (en) * | 2001-08-24 | 2007-05-30 | 주식회사 포스코 | Basic castables for tundish dam block |
| WO2020262726A1 (en) * | 2019-06-24 | 2020-12-30 | 한남대학교 산학협력단 | Composition for eco-friendly industrial materials using shells |
| KR102302131B1 (en) * | 2021-01-08 | 2021-09-14 | 비오엠코스메틱주식회사 | Composition for hair tonic or treating or preventing hair loss |
| KR102611681B1 (en) * | 2022-10-27 | 2023-12-11 | 남택규 | Composition of oister shell and interior panel of ship |
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