KR970042386A - Manufacturing method of lightweight aggregate using tunnel kiln - Google Patents

Manufacturing method of lightweight aggregate using tunnel kiln Download PDF

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Publication number
KR970042386A
KR970042386A KR1019950059475A KR19950059475A KR970042386A KR 970042386 A KR970042386 A KR 970042386A KR 1019950059475 A KR1019950059475 A KR 1019950059475A KR 19950059475 A KR19950059475 A KR 19950059475A KR 970042386 A KR970042386 A KR 970042386A
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KR
South Korea
Prior art keywords
weight
temperature
kiln
product
lightweight aggregate
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Application number
KR1019950059475A
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Korean (ko)
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KR0145123B1 (en
Inventor
장영운
김완중
하은수
정재익
심정록
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정종순
주식회사 금강
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Priority to KR1019950059475A priority Critical patent/KR0145123B1/en
Publication of KR970042386A publication Critical patent/KR970042386A/en
Application granted granted Critical
Publication of KR0145123B1 publication Critical patent/KR0145123B1/en

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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
    • 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
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/027—Lightweight materials
    • 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
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08—Flue dust, i.e. fly ash
    • 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
    • C04B18/12—Waste materials; Refuse from quarries, mining or the like
    • 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
    • C04B20/04—Heat treatment
    • C04B20/06—Expanding clay, perlite, vermiculite or like granular materials
    • C04B20/061—Expanding clay, perlite, vermiculite or like granular materials in rotary kilns
    • 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
    • C04B20/0016—Granular materials, e.g. microballoons
    • C04B20/002—Hollow or porous granular materials
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

본 발명은 일반유리원료 제조부산물인 규사/장석/석회석/백운석 미분을 주원료로, 화력발전소 부산물인 플라이애쉬(Fly ash) 등을 부원료로 사용하고, 여기에 무기첨가제 및 바인더를 혼합하여 터널 킬른을 이용하여 소성, 발포팽창시켜 제조한 인공경량골재의 제조 방법에 관한 것이다.In the present invention, the main raw material is silica sand, feldspar, limestone, dolomite fine powder, which is a by-product of general glass raw material production, and fly ash (Fly ash), which is a byproduct of a thermal power plant, as a secondary raw material, and an inorganic additive and a binder are mixed to form a tunnel kiln. The present invention relates to a method for producing artificial lightweight aggregate prepared by sintering and foaming.

경량골재는 비중 및 강도에 따른 단열용, 외벽재 및 방음용, 냉동용, 원예용 등의 분야에 주로 활용되는 비구조용(非構造用) 및 건축토목 구조물의 경량화에 사용되는 구조용(構造用)으로 나뉜다.Lightweight aggregates are structural materials used for lightening non-structural and construction civil engineering structures that are mainly used in insulation, exterior wall and sound insulation, refrigeration, horticulture, etc. according to specific gravity and strength. Divided.

종래에는 대량생산이 가능한 로타리 킬른(Rotary Kiln)으로 제조하였으나, 공정의 조절이 힘들고, 킬른내 골재의 융착(Sticking) 현상이 발생하며, 인공경량골재의 여러 가지의 다양하게 요구되는 물성의 균일성을 얻기 힘들며, 열효율이 낮다는 단점이 있었다.Conventionally, it is manufactured with rotary kiln, which can be mass-produced, but it is difficult to control the process, sticking of aggregates in the kiln occurs, and uniformity of various required properties of artificial lightweight aggregates. It is difficult to obtain, and has a disadvantage of low thermal efficiency.

본 발명은 기존 로타리 킬른이 갖는 문제점을 해결하기 위하여 터널 킬른(Pusher Typed Electric Tunnel Kiln)을 사용하여 용이한 공정조절, 소성공정중 골재의 Rim 발생 제거, 다양한 요구물성의 균일성 구현, 높은 열효율, 낮은 불량률 및 용이한 유지보수 등을 가능하게 하여 생산원가를 낮추며 고품질의 인공경량골재를 제조하는 것이다.In order to solve the problems of the existing rotary kiln, the present invention uses a tunnel type kiln (Pusher Typed Electric Tunnel Kiln) for easy process control, elimination of Rim of aggregates during the firing process, uniformity of various requirements, high thermal efficiency, It is possible to manufacture high quality artificial lightweight aggregate by lowering production cost by enabling low defect rate and easy maintenance.

Description

터널 킬른을 이용하는 경량골재의 제조방법Manufacturing method of lightweight aggregate using tunnel kiln

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

Claims (3)

규석광산 부산물인 규사미분 45∼55 중량%에 장석광산 부산물인 장석미분 15∼25 중량%, 화력발전소 부산물인 플라이 애쉬 10~20 중량%, 석회석광산 부산물인 석회석미분 또는 백운산광산 부산물인 백운산미분 7∼13 중량% 및 산화철 3∼7 중량%를 첨가 혼합하여 구상성형체를 성형하고, 상기 구상성형체 전체 중량의 1∼3 중량%의 플라이애쉬를 균일하게 도포하여 뮬라이트질 내화갑에 적재시켜 유기환원분위기 형성제와 함께 로타리형 건조로(1), 내화갑 구동부(2), 적재구역(3), 가열구역(4), 고온 냉각구역(5), 이송구역(6), 서냉구역(7)으로 구성된 터널 킬른에 투입하여 적절한 온도조건하에서 소성 발포시킨 후 냉각시켜 제조하는 것을 특징으로 하는 경량골재의 제조 방법.45 to 55% by weight of silica sand as a by-product of quartzite, 15 to 25% by weight of feldspar as a by-product of feldspar, 10 to 20% by weight of fly ash as a by-product of thermal power plants, limestone powder as a by-product of limestone or as a byproduct of Baiyun mine 7 Spherical shaped body is formed by adding and mixing ˜13% by weight and 3-7% by weight of iron oxide, and uniformly apply 1 to 3% by weight of fly ash to the total weight of the spherical shaped body, and load it on a mullite-quality sachet. With rotary forming agent (1), fireproof drive (2), loading zone (3), heating zone (4), high temperature cooling zone (5), transfer zone (6), slow cooling zone (7) Method of producing a lightweight aggregate, characterized in that the prepared by putting in a tunnel kiln made by firing and foaming under appropriate temperature conditions. 제 1항에 있어서, 유기환원분위기 형성제는 종이, 왕겨, 톱밥인 것을 특징으로 하는 경량골재의 제조 방법.The method of claim 1, wherein the organic reducing atmosphere forming agent is paper, rice hull, sawdust. 제 1항에 있어서, 터널 킬른내의 온도조건은 킬른내 인입온도 900∼1150℃, 최고온도 1150∼1200℃, 중간유지온도 1000∼1150℃, 고온냉각온도 1150∼900℃, 서냉온도 900∼500℃로 냉각하는 것을 특징으로 하는 경량골재의 제조 방법.The temperature condition in the tunnel kiln is the inlet temperature 900 ~ 1150 ℃, maximum temperature 1150 ~ 1200 ℃, intermediate holding temperature 1000 ~ 1150 ℃, high temperature cooling temperature 1150 ~ 900 ℃, slow cooling temperature 900 ~ 500 Method for producing a lightweight aggregate, characterized in that cooled to ℃.
KR1019950059475A 1995-12-27 1995-12-27 Manufacturing method of lightweight aggregate using tunnel kiln KR0145123B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950059475A KR0145123B1 (en) 1995-12-27 1995-12-27 Manufacturing method of lightweight aggregate using tunnel kiln

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Application Number Priority Date Filing Date Title
KR1019950059475A KR0145123B1 (en) 1995-12-27 1995-12-27 Manufacturing method of lightweight aggregate using tunnel kiln

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KR970042386A true KR970042386A (en) 1997-07-24
KR0145123B1 KR0145123B1 (en) 1998-07-15

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Publication number Priority date Publication date Assignee Title
KR100846821B1 (en) * 2007-01-22 2008-07-16 카운슬 오브 사이언티픽 앤드 인더스트리얼 리서치 An improved process for the production of geopolymeric material from fly ash
KR102376743B1 (en) * 2021-08-24 2022-03-23 지엠이코리아 (주) Manufacturing method of building aggregate using incineration ash

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