KR100319532B1 - Construction materials using steel making slag and used cast-iron sand - Google Patents
Construction materials using steel making slag and used cast-iron sand Download PDFInfo
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- KR100319532B1 KR100319532B1 KR1019990020311A KR19990020311A KR100319532B1 KR 100319532 B1 KR100319532 B1 KR 100319532B1 KR 1019990020311 A KR1019990020311 A KR 1019990020311A KR 19990020311 A KR19990020311 A KR 19990020311A KR 100319532 B1 KR100319532 B1 KR 100319532B1
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- South Korea
- Prior art keywords
- iron
- millimeters
- sand
- slag
- waste
- Prior art date
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- 239000004576 sand Substances 0.000 title claims abstract description 32
- 239000002893 slag Substances 0.000 title claims abstract description 25
- 238000009628 steelmaking Methods 0.000 title claims abstract description 13
- 229910001018 Cast iron Inorganic materials 0.000 title 1
- 239000004035 construction material Substances 0.000 title 1
- 239000002699 waste material Substances 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 40
- 229910052742 iron Inorganic materials 0.000 abstract description 20
- 229910000831 Steel Inorganic materials 0.000 abstract description 12
- 239000010959 steel Substances 0.000 abstract description 12
- 239000006227 byproduct Substances 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000011396 hydraulic cement Substances 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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
- 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
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- 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
- C04B18/14—Waste materials; Refuse from metallurgical processes
-
- 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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
본 발명은 철의 원료가 되는 철광석에서 철을 분리하고 부산물로 남은 제강슬래그와 주물 공장에서 주형으로 사용한 후 페기 처분하는 폐주물사를 재활용 할수 있도록 한 것으로 좀더 상세하게는 제강 슬래그와 폐주물사를 이용해 토목용 혼합골재로 재활용 할수 있도록 하는데 그 목적이 있다.The present invention is to separate the iron from the iron ore that is the raw material of iron and to recycle the steel foundry slag remaining as a by-product and the waste foundry sand discarded after use as a mold in the foundry, more specifically, the steel mixing slag and waste foundry sand Its purpose is to allow it to be recycled into aggregate.
본 발명은 제강 슬래그와 폐주물사를 홉퍼와 피다를 경유해 전자석탈철기에 투입, 1차 철분을 제거하고 죠어크러셔에서 50밀리 이하로 분쇄한 다음 선별기에서 20밀리 이하, 50밀리이하로 선별해 20밀리 이하는 정사라인과 전자석탈철기, 영구자석을 경유시키고, 20밀리 이상 50밀리까지는 파쇄라인과 전자석탈철기, 시각선별기, 콘크러셔를 경유시켜 서로 혼합하여서 된 것이다.In the present invention, steelmaking slag and waste foundry sand are put into an electromagnetism decanter via a hopper and a feeder, and the primary iron is removed and pulverized to 50 millimeters or less in a jaw crusher, and then 20 millimeters or less in a sorter and 20 millimeters or less. The following is a mixture of ortho line, electromagnetite iron and permanent magnet via 20 millimeters to 50 millimeters of crushing line, electromagnetite iron, visual sorter, and crusher.
본 발명은 제강 슬래그와 폐주물사를 이용해 품질이 우수한 혼합골재를 생산, 공급함으로써 자원 재활용을 할수 있고, 환경보호 및 경제적인 이익을 얻을수있는 효과가 있다.The present invention by producing and supplying a good quality aggregate aggregate using steelmaking slag and waste casting sand can be recycled resources, has the effect of obtaining environmental protection and economic benefits.
Description
본 발명은 철의 원료가 되는 철광석에서 철을 분리하고 부산물로 남은 제강 슬래그와 주물공장에서 주형으로 사용한후 폐기처분하는 폐주물사를 재활용하여 혼합골재를 제조하는 것에 관한 것이다.The present invention relates to the production of mixed aggregates by separating iron from iron ore, which is a raw material of iron, and recycling waste foundry sand discarded after being used as a mold in steelmaking slag and a foundry as a byproduct.
철광석에서 철을 분리하고 남은 제강 슬래그는 중금속과 같은 환경오염 물질이 없으며, 알카리성 성분의 슬래그는 다공성 형태로 토양 중 오염물질을 흡착하는 작용이 있을뿐 아니라 천연 골재보다 견고성이 매우 우수하다.The steel slag left after iron separation from iron ore is free from environmental pollutants such as heavy metals. Alkaline slag has the function of adsorbing contaminants in the soil in a porous form and is much stronger than natural aggregates.
따라서, 종래에도 제강 슬래그는 파쇄시켜 철성분을 제거한 뒤 숙성, 발효과정을 거쳐 건설 및 토목 분야에서 단순재료로 사용하고 있으나 사용범위가 한정되는 주로 매립하는 방법을 사용하여 왔으나, 근래 환경오염 등에 따라 더 이상 매립에만 의존할 수 없게 됨으로써, 이의 효과적인 처리 및 재활용 기술의 개발은 경제적 측면보다는 환경보전의 측면에서 적극 해결하여야 할 시급한 현안 문제로 떠오르고 있다. 그러나 철강스래그 및 폐주물사의 부산물 발생량 및 유해 금속성분의 함량이 날로 증가 추세에 있으며 환경오염을 가중시키므로 철강슬래그와 폐주물사를 처리하는데 많은 문제점이 있었다.Therefore, steelmaking slag is conventionally used as a simple material in construction and civil engineering through aging, fermentation, crushing to remove iron components, but it has been mainly used for landfill, which has a limited use range. By no longer relying on landfills, the development of effective treatment and recycling technologies has emerged as an urgent issue to be addressed in terms of environmental conservation rather than economics. However, the amount of by-products generated by steel slag and waste foundry and the amount of harmful metal components are increasing day by day, increasing the environmental pollution, there were many problems in treating steel slag and waste foundry sand.
상기한 제반 문제점을 해결하기 위한 본 발명의 목적은 철강슬래그 및 폐주물사를 무해화 처리를 하여 도로포장공사용 및 보조기층재 용도로 사용할 수 있는 혼합골재의 제조방법을 제공하는데 있다.상기 목적을 달성하기 위하여 본 발명은 그 폐주물사를 적당한 비율로 섞고 제강슬래그를 적당한 크기로 분쇄하면서 철성분을 제거하는 동시에 폐주물사에 포함된 철성분과 유해성분을 제거하는 과정과 상기 분쇄과정에서 분쇄된 제강슬래그와 폐주물사를 혼합기에서 마사토, 모래를 혼합되는 혼합과정에 의해 도포포장공사용 및 콘크리트용 보조기층제를 제조하면 본 발명의 목적을 달성할 수 있게 된다.SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide a method for producing mixed aggregate that can be used for road paving work and auxiliary base material by harmless treatment of steel slag and waste casting sand. The present invention mixes the waste foundry sand in an appropriate ratio, and removes the iron component while crushing the steelmaking slag to an appropriate size, and at the same time to remove the iron and harmful components contained in the waste foundry sand and the steelmaking slag and waste foundry sand crushed in the grinding process Masato, in the manufacturing process of the auxiliary coating layer for the coating and packaging work and concrete by mixing the sand can achieve the object of the present invention.
도 1은 본 발명의 전체 공정도1 is an overall process diagram of the present invention
**도면의 주요부분에 대한 부호의 설명**** Description of the symbols for the main parts of the drawings **
1. 홉퍼 2. 피다 3. 전자석탈철기1. Hopper 2. Bloom 3. Electromagnetism
4. 죠오크러셔 5. 선별기4. Jaw crusher 5. Selector
본 발명의 제강 슬래그와 폐주물사를 이용한 혼합골재에 관한 바람직한 실시예를 이하 부수되는 도면과 관련하여 상세히 설명하면 다음과 같다.Preferred embodiments of the mixed aggregate using the steelmaking slag and waste casting sand of the present invention will be described below in detail with reference to the accompanying drawings.
제1공정1st process
철강석에서 철을 분리하고 부산물로 남은 제강 슬래그와 주물공장에서 폐기처분하는 폐주물사, 마사토와 모래를 야적장에 준비한다.The iron is separated from the steel, and the remaining steel sand slag as a by-product and waste foundry sand, masato and sand which are disposed of in the foundry are prepared in the yard.
제2공정2nd process
제강 슬래그 중량비 약50%와 폐주물사 중량비 약30%와 마사토 중량비 약10%,모래중량비 약10%를 홉퍼(1)에 투입한다.About 50% of the steel slag weight ratio, about 30% by weight of the waste foundry sand, about 10% by weight of the masato, and about 10% of the sand weight are added to the hopper (1).
제3공정3rd process
제2공정의 제강 슬래그와 폐주물사, 마사토와 모래를 피다(2)를 통해 전자석탈철기(3)와 죠오크러셔(4)에 공급해 철성분을 제거하고 50밀리 이하로 분쇄한다.The steelmaking slag, waste foundry sand, masato and sand of the second process are fed to the electromagnetism iron machine 3 and the jaw crusher 4 through the injecting of sand 2 to remove iron and pulverized to 50 mm or less.
제4공정4th process
선별기로 공급해 20밀리 이하는 정사라인, 전자석탈철기, 영구자석을 경유시키고, 30밀리이상 50밀리이하는 파쇄라인, 전자석탈철기, 시각선별기, 콘크러셔를 경유시켜 서로 혼합하고 검사 및 포장한다.제5공정(압축강도 시험)It is supplied to the sorter, and less than 20 millimeters are passed through ortho line, electromagnetism machine and permanent magnet, and 30 millimeters or more and 50 millimeters are mixed, inspected and packaged with each other via crushing line, electromagnetizer, visual sorter, and crusher. 5th process (compressive strength test)
기존 시멘트 몰탈 배합비를 기준으로 하여 철강슬래그, 폐주물사, 마사토 및 모래의 비율별 배합을 통하여 기준강도 발현 여부를 확인하기 위해 7일 압축강도를 비교 검토하였다.압축강도시험은 KSL5105의 수경성 시멘트 모르타르의 압축강도 시험 방법에 따라 실시하였고 압축강도 측정은 만능재료 시험기(UII-100A;SHIMADZA사)를 사용하여 7일 후 측정하였다.표 1에 나타난 바와 같이 철강슬래그 50중량%, 폐주물사 30중량%, 마사토 10중량%, 모래 10중량%로 배합하였을때 가장 적합한 도로포장공사용과 보조기록재로 판단된다.상기 공정에서와 같이 철광석에서 철을 분리하여 남은 제강 슬래그를 죠오크러셔와 콘크러셔를 이용해 1차·2차에 거쳐 골재용으로 적당한 크기로 분쇄하고 선별함으로서 골재의 크기를 고르게 할 수 있고, 전자석탈철기와 영구자석을 이용해 분쇄된 골재와 폐주물사에 포함된 철성분 및 유해물질을 완전히 제거할 수 있으며 마사토와 모래를 섞어줌으로써 유해물질이 없는 양질의 혼합골재를 제공할 수 있는 것이다.Based on the ratio of the existing cement mortar, the 7-day compressive strength was compared and compared to determine whether the standard strength was expressed through the ratio of steel slag, waste foundry sand, masato and sand.The compressive strength test was carried out to compress the hydraulic cement mortar of KSL5105. The strength test was carried out according to the test method, and the compressive strength was measured after 7 days using a universal testing machine (UII-100A; SHIMADZA). As shown in Table 1, 50% by weight of steel slag, 30% by weight of waste casting sand, and Masato 10 It is judged to be the most suitable road paving work and auxiliary recording material when it is mixed with 10% by weight and sand. As in the above process, the remaining steelmaking slag is separated from iron ore by using the jaw crusher and the cone crusher, and then crushed and screened to an appropriate size for aggregate through primary and secondary, and the size of the aggregate can be evenly removed. Iron and permanent magnets can be used to completely remove the iron and harmful substances contained in the pulverized aggregate and waste foundry sand, and by mixing masato and sand, it is possible to provide a high quality mixed aggregate free of harmful substances.
본 발명은 제강 슬래그와 폐주물사를 이용해 혼합골재를 재활용 함으로써 제철소와 주물공장에서는 제강 슬래그 및 폐주물사를 처리하는 비용을 절감하고, 불법매립과 불법투기를 예방하여 환경을 보호하는 한편, 견고성이 우수한 혼합골재를 얻을수 있는 경제적인 효과가 있다.The present invention reduces the cost of processing steelmaking slag and waste foundry sand at steel mills and foundry plants by recycling mixed aggregates using steelmaking slag and waste foundry sand, and protects the environment by preventing illegal landfilling and illegal dumping, while having good solidity of mixed aggregate. There is an economic effect to get.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990020311A KR100319532B1 (en) | 1999-05-29 | 1999-05-29 | Construction materials using steel making slag and used cast-iron sand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990020311A KR100319532B1 (en) | 1999-05-29 | 1999-05-29 | Construction materials using steel making slag and used cast-iron sand |
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| Publication Number | Publication Date |
|---|---|
| KR20000012188A KR20000012188A (en) | 2000-03-06 |
| KR100319532B1 true KR100319532B1 (en) | 2002-01-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101763777B1 (en) | 2015-12-18 | 2017-08-01 | 한국건설기술연구원 | pH stabilization treatment of waste rock, tailings and recycled aggregates and mixed aggregates manufactured by the treatment |
| CN112010579A (en) * | 2020-09-08 | 2020-12-01 | 山东埃尔派粉体科技有限公司 | Production method of superfine steel slag powder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100369432B1 (en) * | 2002-08-02 | 2003-01-24 | 주식회사 한국종합기술개발공사 | manufacture method of aggregate using steel slag and device thereof |
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| JPS6240326A (en) * | 1985-08-16 | 1987-02-21 | Nippon Jiryoku Senko Kk | Manufacture of binder |
| US4778523A (en) * | 1985-11-20 | 1988-10-18 | Nippon Magnetic Dressing Co., Ltd. | Process for using steelmaking slag |
| JPH02239138A (en) * | 1989-03-11 | 1990-09-21 | Nippon Jiryoku Senko Kk | Method for reforming steel making slag |
| KR950031978A (en) * | 1994-05-21 | 1995-12-20 | 방규원 | Concrete manufacturing method using steel slag as aggregate |
| JPH082949A (en) * | 1994-06-17 | 1996-01-09 | Joho Sogo Kenkyusho:Kk | Method for modifying steelmaking slag |
| KR19980027828A (en) * | 1996-10-18 | 1998-07-15 | 조성민 | Recycling method of waste foundry sand and its recycled aggregate |
| KR19990030470A (en) * | 1998-12-31 | 1999-04-26 | 김성호 | Manufacturing method of aggregate using waste foundry sand |
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- 1999-05-29 KR KR1019990020311A patent/KR100319532B1/en not_active IP Right Cessation
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6240326A (en) * | 1985-08-16 | 1987-02-21 | Nippon Jiryoku Senko Kk | Manufacture of binder |
| US4778523A (en) * | 1985-11-20 | 1988-10-18 | Nippon Magnetic Dressing Co., Ltd. | Process for using steelmaking slag |
| JPH02239138A (en) * | 1989-03-11 | 1990-09-21 | Nippon Jiryoku Senko Kk | Method for reforming steel making slag |
| KR950031978A (en) * | 1994-05-21 | 1995-12-20 | 방규원 | Concrete manufacturing method using steel slag as aggregate |
| JPH082949A (en) * | 1994-06-17 | 1996-01-09 | Joho Sogo Kenkyusho:Kk | Method for modifying steelmaking slag |
| KR19980027828A (en) * | 1996-10-18 | 1998-07-15 | 조성민 | Recycling method of waste foundry sand and its recycled aggregate |
| KR19990030470A (en) * | 1998-12-31 | 1999-04-26 | 김성호 | Manufacturing method of aggregate using waste foundry sand |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101763777B1 (en) | 2015-12-18 | 2017-08-01 | 한국건설기술연구원 | pH stabilization treatment of waste rock, tailings and recycled aggregates and mixed aggregates manufactured by the treatment |
| CN112010579A (en) * | 2020-09-08 | 2020-12-01 | 山东埃尔派粉体科技有限公司 | Production method of superfine steel slag powder |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000012188A (en) | 2000-03-06 |
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