KR940021452A - Manufacturing method of high strength aggregate using blast furnace slag - Google Patents

Manufacturing method of high strength aggregate using blast furnace slag Download PDF

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Publication number
KR940021452A
KR940021452A KR1019930004493A KR930004493A KR940021452A KR 940021452 A KR940021452 A KR 940021452A KR 1019930004493 A KR1019930004493 A KR 1019930004493A KR 930004493 A KR930004493 A KR 930004493A KR 940021452 A KR940021452 A KR 940021452A
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South Korea
Prior art keywords
particles
less
crushing
stage
yard
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KR1019930004493A
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Korean (ko)
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강대일
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박대성
주식회사 동림
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Priority to KR1019930004493A priority Critical patent/KR940021452A/en
Publication of KR940021452A publication Critical patent/KR940021452A/en

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Abstract

본 발명은 고로 슬래그를 이용하여 고강도의 토목 공사용 잔골재를 제조하는 방법에 관한 것이다.The present invention relates to a method for producing high strength civil aggregate fine aggregates using blast furnace slag.

본 발명은 고로 슬래그를 잔골재의 원료로 사용되게 함으로써 대량으로 처리할 수 있도록 하는 것을 목적으로 하며, 본 발명의 또 다른 목적은 현재 고갈 상태에 있는 자연산 잔골재인 모래의 대용품을 경제적으로 제공하는 것이다.An object of the present invention is to enable the blast furnace slag to be used as a raw material of the fine aggregate, so that it can be processed in large quantities, and another object of the present invention is to economically provide a substitute for sand, which is a natural fine aggregate that is currently depleted.

본 발명은 하기 4단계 파쇄 및 에이징 공정을 거쳐 제조되는 것을 특징으로 한다.The present invention is characterized by being manufactured through the following four steps of crushing and aging process.

1) 제1단계 파쇄공정 : 야적된 고로 서냉슬래그를 입경 100mm의 크기의 입자로 분쇄하고, 이 중 입경 5mm이하의 입자는 폐기하는 공정.1) First stage crushing process: The blast furnace slow cooling slag is crushed into particles having a particle size of 100 mm, and the particles having a particle size of 5 mm or less are discarded.

2) 제2단계 파쇄공정 : 제1단계 파쇄공정을 거쳐 이송된 입자를 입경 40mm이하의 입자로 분쇄하여 입경 5mm이하의 입자는 야적장 “가”로 이송하고 나머지는 3차 파쇄기로 이송하는 공정.2) 2nd stage shredding process: The process of grinding the particles transferred through the 1st stage shredding process into particles with a particle diameter of 40mm or less and transferring the particles with a particle size of 5mm or less to the yard “ga” and the rest to a tertiary shredder.

3) 제3단계 파쇄 및 에이징 공정 : 제2단계 파쇄공정을 거쳐 이송된 입자를 입경 15mm이하의 크기로 파쇄하여 이 중 입경 5mm이하의 입자는 야적장 “가”로 이송하고 나머지는 “나”로 이송하는 에이징 시키는 공정.3) 3rd stage crushing and aging process: The particles transferred through the 2nd stage of crushing process are shredded to the size of 15mm or less, and the particles of 5mm or less are transferred to the yard “ga” and the rest to “B”. Aging process to transfer.

4) 제4단계 파쇄공정 : 야적장 “가” 및 “나”에 야적된 입자 중 입경 2.5mm이하의 입자는 그대로 통과시키고, 나머지는 입경 2.5mm이하의 크기로 파쇄하는 공정.4) 4th stage crushing process: The process of crushing the particles having the particle size of 2.5mm or less as it is, and the rest of the particles deposited in the yard “A” and “B” as it is, and crushing the particles to the size of 2.5mm or less.

이와 같이 제조된 골재는 모래 대용으로 고강도 콘크리트용으로 사용된다.The aggregate thus produced is used for high strength concrete as a substitute for sand.

Description

고로 슬래그를 이용한 고강도 골재의 제조방법Manufacturing method of high strength aggregate using blast furnace slag

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 개략적인 공정도이다.1 is a schematic process diagram of the present invention.

Claims (4)

하기 4단계 파쇄 및 에이징 공정을 거쳐 제조되는 것을 특징으로 하는 고로 서냉 슬래그를 이용한 고강도 골재의 제조방법. 1) 제1단계 파쇄공정 : 야적된 고로 서냉슬래그를 입경 100mm의 크기의 입자로 분쇄하고, 이 중 입경 5mm이하의 입자는 폐기하는 공정. 2) 제2단계 파쇄공정 : 제1단계 파쇄공정을 거쳐 이송된 입자를 입경 40mm이하의 입자로 분쇄하여 입경 5mm이하의 입자는 야적장 “가”로 이송하고 나머지는 3차 파쇄기로 이송하는 공정. 3) 제3단계 파쇄 및 에이징 공정 : 제2단계 파쇄공정을 거쳐 이송된 입자를 입경 15mm이하의 크기로 파쇄하여 이 중 입경 5mm이하의 입자는 야적장 “가”로 이송하고 나머지는 “나”로 이송하는 에이징 시키는 공정. 4) 제4단계 파쇄공정 : 야적장 “가” 및 “나”에 야적된 입자 중 입경 2.5mm이하의 입자는 그대로 통과시키고, 나머지는 입경 2.5mm이하의 크기로 파쇄하는 공정.Method for producing a high strength aggregate using blast furnace slow cooling slag, characterized in that it is produced through the following four steps of crushing and aging process. 1) First stage crushing process: The blast furnace slow cooling slag is crushed into particles having a particle size of 100 mm, and the particles having a particle size of 5 mm or less are discarded. 2) 2nd stage shredding process: The process of grinding the particles transferred through the 1st stage shredding process into particles with a particle diameter of 40mm or less and transferring the particles with a particle size of 5mm or less to the yard “ga” and the rest to a tertiary shredder. 3) 3rd stage crushing and aging process: The particles transferred through the 2nd stage of crushing process are shredded to the size of 15mm or less, and the particles of 5mm or less are transferred to the yard “ga” and the rest to “B”. Aging process to transfer. 4) 4th stage crushing process: The process of crushing the particles having the particle size of 2.5mm or less as it is, and the rest of the particles deposited in the yard “A” and “B” as it is, and crushing the particles to the size of 2.5mm or less. 제1항에 있어서, 야적장 “가”로 이송된 입자의 에이징 기간은 4일 이내인 것을 특징으로 하는 고로 서냉슬래그를 이용한 고강도 골재의 제조방법.The method of manufacturing a high strength aggregate using blast furnace slow cooling slag according to claim 1, wherein the aging period of the particles transferred to the yard “A” is within 4 days. 제1항에 있어서, 야적장 “나”로 이송된 입자의 에이징 기간은 5일 이상인 것을 고로 서냉슬래그를 이용한 고강도 골재의 제조방법.The method of claim 1, wherein the aging period of the particles transferred to the yard “B” is 5 days or more. 제1항에 있어서, 제4단계 파쇄고정의 파쇄기는 지름 300mm이하의 롤형 파쇄기인 것을 특징으로 하는 고로 서냉슬래그를 이용한 고강도 골재의 제조방법.The method of claim 1, wherein the crusher of the fourth stage crushing fixing is a roll-type crusher having a diameter of 300 mm or less. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930004493A 1993-03-23 1993-03-23 Manufacturing method of high strength aggregate using blast furnace slag KR940021452A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100259468B1 (en) * 1998-03-26 2000-06-15 이태식 A manupacturing process and a device of the sand making use of the steel slag
KR100435444B1 (en) * 2002-02-08 2004-06-10 주식회사 포스코 A recycling method for refining furnace slag of stainless steel making plant
KR20150098087A (en) * 2014-02-19 2015-08-27 주식회사 포스코플랜텍 Slag treating apparatus and method of the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100259468B1 (en) * 1998-03-26 2000-06-15 이태식 A manupacturing process and a device of the sand making use of the steel slag
KR100435444B1 (en) * 2002-02-08 2004-06-10 주식회사 포스코 A recycling method for refining furnace slag of stainless steel making plant
KR20150098087A (en) * 2014-02-19 2015-08-27 주식회사 포스코플랜텍 Slag treating apparatus and method of the same

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