KR950017803A - Method for manufacturing powdered cement and apparatus therefor - Google Patents

Method for manufacturing powdered cement and apparatus therefor Download PDF

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Publication number
KR950017803A
KR950017803A KR1019930026004A KR930026004A KR950017803A KR 950017803 A KR950017803 A KR 950017803A KR 1019930026004 A KR1019930026004 A KR 1019930026004A KR 930026004 A KR930026004 A KR 930026004A KR 950017803 A KR950017803 A KR 950017803A
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KR
South Korea
Prior art keywords
powder
pulverized
pulverized product
granulated powder
grinding
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KR1019930026004A
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Korean (ko)
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KR960006220B1 (en
Inventor
노갑수
이봉한
길준호
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우덕창
쌍용양회공업 주식회사
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/36Manufacture of hydraulic cements in general
    • C04B7/48Clinker treatment
    • C04B7/52Grinding ; After-treatment of ground cement
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/36Manufacture of hydraulic cements in general
    • C04B7/38Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/36Manufacture of hydraulic cements in general
    • C04B7/361Condition or time responsive control in hydraulic cement manufacturing processes
    • C04B7/362Condition or time responsive control in hydraulic cement manufacturing processes for raw materials handling, e.g. during the grinding or mixing step
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Grinding (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

본 발명은 괴상의 시멘트 클링커와 첨가제, 예를 들면 슬래그 및/또는 석고의 혼합물을 분쇄하여 최종생성물인 시멘트를 제조하는 방법 및 장치를 제공하기 위한 것으로, 본 발명에 따른 방법 및 장치는 상기의 혼합분을 롤러프레스에서 1차 분쇄하고, 이 분쇄물을 공기식 해쇄분급기에서 미립분과 조립분으로 동시에 해쇄 및 1차 분급시킨 후 사이클론에서 포집된 미립분과 2차 분쇄기인 롤 밑에서의 조립분으로부터 분급기에서 최종 생성물을 2차 분급하고, 분급된 조립분은 상기 공기식 해쇄분쇄기에서의 일부 조립분과 함께 볼 밑에서 2차 분쇄하고, 이 분쇄물을 상기 2차 분급기로 순환시키게 된다.The present invention is to provide a method and apparatus for producing a final product cement by grinding a mixture of bulk cement clinker and additives, for example slag and / or gypsum, wherein the method and apparatus according to the present invention are a mixture of The powder is first pulverized in a roller press, and the pulverized powder is pulverized and firstly sorted into fine powder and granulated powder simultaneously in an air pulverizer, and then separated from the granulated powder collected in a cyclone and granulated powder under a roll which is a secondary pulverizer. In the air supply, the final product is classified secondly, and the sorted granulated powder is secondaryly crushed under the ball together with some of the granulated powder in the pneumatic pulverizer, and the pulverized product is circulated to the secondary classifier.

본 발명 시스템에 의한 해쇄, 분급 및 분쇄과정을 거친 최종 생성물은 시멘트 분말은 롤러 프레스 분쇄 생성물의 지나치게 경사진 입도분포특성을 개성하고, 종래의 공지된 분쇄 시스템에 비해 마모문제를 감소시킬 뿐 아니라 롤러 프레스 압착물질중 미립분의 불필요한 2차 분쇄과정을 배제함으로써 입도조정이 가능하고, 분쇄에너지가 종래의 공지된 시스템에 비해 7 내지 15% 증가되는 효과를 얻을 수 있다.The final product, which has been pulverized, classified and pulverized by the system of the present invention, has a cement powder that exhibits excessively inclined particle size distribution characteristics of the roller press pulverized product. The particle size can be adjusted by excluding unnecessary secondary grinding of the fine powder in the press compacted material, and the effect of increasing the grinding energy by 7 to 15% compared to a conventionally known system can be obtained.

Description

분말상 시멘트의 제조방법 및 그 장치Method for manufacturing powdered cement and apparatus therefor

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

제1도는 본 발명에 따른 시멘트 클링커 분쇄시스템의 계통도이다.1 is a schematic diagram of a cement clinker grinding system according to the present invention.

제2(a)도는 제1도의 공기식 해쇄분급기의 확대사시도이다.FIG. 2 (a) is an enlarged perspective view of the pneumatic crusher of FIG.

제2(b)도는 제(a)도의 A-A선 단면도이다.FIG. 2 (b) is a cross-sectional view taken along the line A-A in FIG.

제3도 내지 제6도는 종래의 공지된 시멘트 클링커 분쇄시스템의 계통도이다.3 through 6 are schematic diagrams of a conventionally known cement clinker grinding system.

Claims (8)

괴상의 시멘트 클링커와 슬래그 및/또는 석고와의 혼합분을 분쇄하여 분말상의 시멘트를 제조하는 방법에 있어서, 상기의 혼합분을 분쇄하는 1차 분쇄단계와; 상기 단계에서 얻어진 분쇄물을 미립분과 조립분으로 해쇄 및 1차 분급시키는 단계와; 상기 단계에서 얻어진 미립분을 포집하는 단계와; 상기 단계에서 포집된 미립분과 2차 분쇄단계에서 얻어진 분쇄물로부터 조립분과 미립분의 최종 생성물을 2차로 분급하는 단계와; 상기 단계에서 분급된 조립분과 상기 해쇄분급단계에서의 일부 조립분을 함께 분쇄하고, 이 분쇄물을 상기 2차 분급단계로 순환시키는 단계로 이루어진 것을 특징으로 하는 분말상 시멘트의 제조방법.CLAIMS 1. A method for producing powdered cement by grinding a mixed powder of a bulk cement clinker and slag and / or gypsum, comprising: a first grinding step of grinding the mixed powder; Pulverizing and first classifying the pulverized product obtained in the above step into fine powder and granulated powder; Collecting the fine powder obtained in the above step; Secondly classifying the final product of the granulated powder and the fine powder from the fine powder collected in the above step and the pulverized product obtained in the second grinding step; And pulverizing together the granulated powder classified in the step and some granulated powder in the disintegration classification step, and circulating the pulverized product in the secondary classification step. 제1항에 있어서, 상기의 해쇄 및 1차 분급단계는 1차 분쇄물을 2개의 흐름으로 분할시켜서 수행하고, 각각의 흐름을 고속의 공기기류에 의해 충돌부재에 충돌시켜서 실시하는 것을 특징으로 하는 분말상 시멘트의 제조방법.The method of claim 1, wherein the pulverization and primary classification step is carried out by dividing the primary pulverized product into two flows, each flow is carried out by impinging the collision member by a high-speed air stream Method for producing powdered cement. 제2항에 있어서, 상기 고속의 공기기류는 상기 분쇄물에 대해 접선방향으로 유입시켜서 실시하는 것을 특징으로 하는 분말상 시멘트의 제조방법.3. The method of claim 2, wherein the high speed air stream is introduced into the tangential direction with respect to the pulverized product. 제1항에 있어서, 상기 포집단계는 상기 고속의 공기기류에 의해 상승하는 미립분을 포집하여서 되는 겻을 특징으로 하는 분말상 시멘트의 제조방법.The method of claim 1, wherein the collecting step comprises collecting fine particles rising by the high speed air stream. 괴상의 시멘트 클링커와 슬래그 및/또는 석고와의 혼합분을 분쇄하여 분말상의 시멘트를 제조하는 장치에 있어서, 상기 혼합분을 분쇄하는 1차 분쇄수단(2); 상기 1차 분쇄수단(2)에서의 미립분과 조립분으로 해쇄 및 1차 분급시키는 공기식 해쇄 및 1차 분급수단(21); 상기 수단(21)에서 미립분을 포집하는 수단(5); 상기 수단(5)에 포집된 미립분과 2차 분쇄수단(3)에서의 분쇄물을 분급하여 미립분의 최종 생성물을 얻는 2차 분급수단(4); 및 상기 수단(4)에서 분급된 조립분과 상기 해쇄분급수단(21)의 일부 조립분을 함께 분쇄한 분쇄물을 상기 분급수단(4)으로 다시 순환시키는 2차 분쇄수단(3)으로 이루어진 것을 특징으로 하는 분말상 시멘트의 제조장치.An apparatus for producing powdered cement by pulverizing a mixed powder of a bulk cement clinker and slag and / or gypsum, comprising: primary grinding means (2) for pulverizing the mixed powder; Pneumatic crushing and primary classifying means (21) for pulverizing and primary classifying into fine powder and granulated powder in the primary crushing means (2); Means (5) for collecting fines from the means (21); Secondary classification means (4) for classifying the fine powder collected in the means (5) and the pulverized product in the secondary grinding means (3) to obtain a final product of the fine powder; And secondary crushing means (3) for circulating the pulverized product pulverized together with the granulated powder classified by the means (4) and some granulated powder of the pulverized classification means (21) back to the classifying means (4). An apparatus for producing powdered cement. 제5항에 있어서, 상기 해쇄 및 1차 분급수단(21)은 1차 분쇄물을 2개의 흐름으로 분할시키기 위한 수단(16, 16'), 상기 분쇄물을 해쇄시키기 위한 수단(11, 17), 상기 분쇄물을 미립분과 조립분으로 분급시키기 위한 고속의 공기흐름발생수단(10, 10') 및 상기 분급된 분쇄물을 이송시키기 위한 수단(13)이 일체로 연결되어 구성되어 있는 것을 특징으로 하는 분말상 시멘트의 제조장치.6. The method according to claim 5, wherein the pulverization and primary classification means (21) comprises means (16, 16 ') for dividing the primary pulverized product into two streams, and means (11, 17) for pulverizing the pulverized product. High speed air flow generating means (10, 10 ') for classifying the pulverized product into fine powder and granulated powder and means (13) for conveying the classified pulverized product are integrally connected. Apparatus for producing powdery cement. 제6항에 있어서, 상기 분급된 조립분을 일정비율로 분리하기 위한 분리수단(15)이 추가로 설치되어 있는 것을 특징으로 하는 분말상 시멘트의 제조방법.7. A method for producing powdered cement according to claim 6, further comprising separating means (15) for separating said sorted granulated powder at a predetermined ratio. 제6항에 있어서, 상기 해쇄수단(11)은 분쇄입자의 충돌에 의한 마모정도와 고속의 공기기류에 의한 분급정도를 조정할 수 있도록 된 것을 특징으로 하는 분말 시멘트의 제조장치.7. The apparatus for producing powder cement according to claim 6, wherein the disintegrating means (11) is capable of adjusting the degree of wear due to the impact of the pulverized particles and the degree of classification by the high speed air stream. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930026004A 1993-12-01 1993-12-01 Apparatus and method for cement of powder phase KR960006220B1 (en)

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KR1019930026004A KR960006220B1 (en) 1993-12-01 1993-12-01 Apparatus and method for cement of powder phase

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KR1019930026004A KR960006220B1 (en) 1993-12-01 1993-12-01 Apparatus and method for cement of powder phase

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KR950017803A true KR950017803A (en) 1995-07-20
KR960006220B1 KR960006220B1 (en) 1996-05-11

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100608444B1 (en) * 2004-08-05 2006-08-02 주식회사 효석 The method of granular a soil conditioner making from the by-product of slag and a gypsum
KR102140377B1 (en) * 2018-09-21 2020-07-31 주식회사 포스코건설 Manufacturing Method and Apparatus for Powder Activator Admixture including Ferro-nickel Slag Fine Powder

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