WO2013146186A1 - クリンカ中の遊離石灰量を制御する方法 - Google Patents

クリンカ中の遊離石灰量を制御する方法 Download PDF

Info

Publication number
WO2013146186A1
WO2013146186A1 PCT/JP2013/056452 JP2013056452W WO2013146186A1 WO 2013146186 A1 WO2013146186 A1 WO 2013146186A1 JP 2013056452 W JP2013056452 W JP 2013056452W WO 2013146186 A1 WO2013146186 A1 WO 2013146186A1
Authority
WO
WIPO (PCT)
Prior art keywords
amount
clinker
free lime
cao
fluorine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2013/056452
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
祐希 二宮
田中　久順
牧生 山下
陽一郎 中西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Materials Corp
Original Assignee
Mitsubishi Materials Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Priority to US14/388,513 priority Critical patent/US9598312B2/en
Priority to IN8072DEN2014 priority patent/IN2014DN08072A/en
Priority to KR1020147025912A priority patent/KR101687464B1/ko
Priority to AU2013238358A priority patent/AU2013238358B2/en
Priority to CN201380016612.3A priority patent/CN104203862A/zh
Publication of WO2013146186A1 publication Critical patent/WO2013146186A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
    • C04B7/42—Active ingredients added before, or during, the burning process
    • C04B7/421—Inorganic materials
    • C04B7/424—Oxides, Hydroxides
    • 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
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
    • C04B7/42—Active ingredients added before, or during, the burning process
    • C04B7/421—Inorganic 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
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/361—Condition or time responsive control in hydraulic cement manufacturing 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
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/44—Burning; Melting
    • C04B7/4407—Treatment or selection of the fuel therefor, e.g. use of hazardous waste as secondary fuel ; Use of particular energy sources, e.g. waste hot gases from other processes

Definitions

  • the present invention relates to a method for controlling the amount of free lime in a clinker and suppressing the variation in cement quality due to the variation in the amount of free lime in the method for producing cement.
  • Cement factories produce hydraulic clinker by high-temperature firing of mixed pulverized materials such as limestone, clay, silica and iron raw materials in an SP kiln or NSP kiln. Because the amount of free lime in the clinker affects the physical properties of the cement, the clinker is manufactured in the factory so that the amount of free lime is within a certain range.
  • Conventional methods for controlling the amount of free lime include the mixing ratio of each raw material (adjustment of the chemical composition of the raw material mixture), the amount of raw material input to the kiln, the rotational speed of the kiln, the length of the burner flame, the amount of induced kiln exhaust gas, etc.
  • the method of using a mineralizer is changed.
  • Patent Document 1 the amount of free lime contained in the clinker or the like is controlled to be 0.5% by mass or less. Moreover, in the method of patent document 2, it controls so that the amount of free lime in a cement and fluorine content may satisfy a fixed relational expression. Further, Patent Document 3 discloses that any one or more selected from the group consisting of fluorine, sulfur, chlorine and bromine and any one selected from the group consisting of Group 3 elements to Group 12 elements is used as the clinker fired product. There has been disclosed a production method capable of lowering the cement clinker firing temperature without increasing the amount of fluorine by containing one or more metal elements.
  • the present invention provides a method of keeping the amount of free lime in a clinker within a certain range in a cement manufacturing process, and suppressing variation in cement quality due to variation in the amount of free lime.
  • the control method of the amount of free lime which consists of the following structures is provided.
  • f.CaO is the amount of free lime
  • SO 3 is the amount of sulfur trioxide in the clinker (wt%)
  • a is a coefficient that satisfies formula (2)
  • b is a coefficient that satisfies formula (3)
  • t is a coefficient based on 1450 ° C.
  • t X / 1450 when the firing temperature is X ° C.
  • HM hydraulic modulus.
  • the amount of fuel or waste gypsum used as an SO 3 source in clinker is adjusted, and fluorite or fluorine-containing waste used as a mineralizer as a fluorine source in clinker
  • the amount of free lime (f.CaO) in the clinker can be controlled by adjusting the amount of addition according to the formula (1).
  • the graph which shows a response
  • the control method of the present invention is a method for controlling the amount of free lime in a cement clinker, wherein the amount of free lime (f.CaO) in the clinker is adjusted according to the equations (1) to (3).
  • a 0.0001 ⁇ F + 9.2 ⁇ t ⁇ 0.18 ⁇ HM ⁇ 9.2
  • b ⁇ 0.0005 ⁇ F ⁇ 32.8 ⁇ t ⁇ 2.9 ⁇ HM + 28.4 (3)
  • f CaO is the amount of free lime
  • SO 3 is the amount of sulfur trioxide (wt%) in the clinker
  • a is a coefficient satisfying equation (2)
  • b is a coefficient satisfying Equation (3)
  • F is the amount of fluorine in clinker (mg / kg)
  • t is a coefficient based on 1450 ° C.
  • t X / 1450
  • HM hydraulic modulus.
  • Most of the sulfur trioxide amount SO 3 in the clinker is derived from fuel.
  • waste gypsum board powder is mixed into the fuel or put into the kiln before the kiln to adjust the amount of SO 3 in the clinker.
  • the amount of SO 3 expressed by the equation (1) can be controlled by adjusting the amount of fuel used and the amount of waste gypsum input.
  • a mineralizer is added to the clinker raw material. Waste (sludge) containing fluorite or fluorine is used as a mineralizer. Since the fluorine contained in the clinker is mainly derived from the mineralizer, for example, by adjusting the addition amount of the mineralizer, the coefficient a of the formula (2) including the fluorine amount F and the coefficient of the formula (3) It is possible to adjust b and finally control the amount of SO 3 in the clinker represented by the equation (1).
  • HM CaO / (SiO 2 + Al 2 O 3 + Fe 2 O 3 ).
  • Formula (1) is well established when the fluorine content F in the clinker is 300 mg / kg or more. When the amount of fluorine F in the clinker is less than this, the correlation between fluorine and SO 3 decreases, and the amount of free lime (f.CaO) in the clinker tends to be larger than the value represented by the formula (1).
  • the amount of SO 3 in the clinker was measured according to JIS R 5202: 2010 “Chemical analysis method of cement”.
  • the amount of fluorine in the clinker was measured by fluorescent X-ray analysis (powder briquette method or bead method).
  • the amount of free lime in clinker (f.CaO) was measured according to JCAS I-01: 1997 “Quantification method of free calcium oxide”.
  • Example 1 The produced cement clinker was measured for SO 3 content, fluorine content, and free lime content (f.CaO) in the clinker. The results are shown in Table 1 together with the hydraulic modulus HM and the firing temperature coefficient t. In addition, the amount of free lime (expected f.CaO) calculated by substituting the raw material hydraulic modulus, firing temperature coefficient, measured SO 3 amount, and fluorine amount into Equation (1) is shown. Moreover, the relationship between the amount of free lime based on the formula (1) (expected f.CaO) and the actually measured amount of free lime (f.CaO) is shown in FIG.
  • Example 2 When clinker raw materials having a hydraulic modulus HM of 1.9, 2.1, 2.3 are fired at 1300 ° C., 1350 ° C., and 1450 ° C., respectively, the amount of free lime (f FIG. 2 to FIG. 3 show the relationship between the amount of SO 3 and the amount of fluorine in which .CaO) is in the range of 0.5 ⁇ f.CaO ⁇ 1.0.
  • the shaded area in the figure is in the range of 0.5 ⁇ f.CaO ⁇ 1.0, and the amount of free lime is within the range of 0.5 ⁇ f.CaO ⁇ 1.0 by adjusting the amount of SO 3 and fluorine.
  • the present invention adjusts the amount of fuel or waste gypsum used as the SO 3 source in the clinker, and expresses the addition amount of fluorite or fluorine-containing waste used as a mineralizer as the fluorine source in the clinker.
  • it can be applied to a method of controlling the amount of free lime (f.CaO) in the clinker.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
PCT/JP2013/056452 2012-03-29 2013-03-08 クリンカ中の遊離石灰量を制御する方法 Ceased WO2013146186A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US14/388,513 US9598312B2 (en) 2012-03-29 2013-03-08 Method for controlling free lime content of clinker
IN8072DEN2014 IN2014DN08072A (enExample) 2012-03-29 2013-03-08
KR1020147025912A KR101687464B1 (ko) 2012-03-29 2013-03-08 클링커 중의 유리 석회량의 예상 방법
AU2013238358A AU2013238358B2 (en) 2012-03-29 2013-03-08 Method for controlling free lime content of clinker
CN201380016612.3A CN104203862A (zh) 2012-03-29 2013-03-08 控制熟料中的游离石灰量的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012077525A JP5924484B2 (ja) 2012-03-29 2012-03-29 セメントクリンカ中の遊離石灰量の予想方法
JP2012-077525 2012-03-29

Publications (1)

Publication Number Publication Date
WO2013146186A1 true WO2013146186A1 (ja) 2013-10-03

Family

ID=49259454

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/056452 Ceased WO2013146186A1 (ja) 2012-03-29 2013-03-08 クリンカ中の遊離石灰量を制御する方法

Country Status (9)

Country Link
US (1) US9598312B2 (enExample)
JP (1) JP5924484B2 (enExample)
KR (1) KR101687464B1 (enExample)
CN (1) CN104203862A (enExample)
AU (1) AU2013238358B2 (enExample)
IN (1) IN2014DN08072A (enExample)
MY (1) MY171152A (enExample)
TW (1) TWI561497B (enExample)
WO (1) WO2013146186A1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6316576B2 (ja) * 2013-11-28 2018-04-25 太平洋セメント株式会社 セメント組成物
JP6206670B2 (ja) * 2013-12-27 2017-10-04 三菱マテリアル株式会社 石英結晶子径に基づいて遊離石灰量を制御したクリンカーの製造方法と製造設備
JP2017137216A (ja) * 2016-02-04 2017-08-10 太平洋セメント株式会社 セメントクリンカの焼成方法及び焼成装置
JP2017137217A (ja) * 2016-02-04 2017-08-10 太平洋セメント株式会社 セメントクリンカの焼成方法及び焼成装置
CN110749525A (zh) * 2019-11-20 2020-02-04 故城山水水泥有限公司 一种进厂脱硫石膏中三氧化硫的测定方法
KR200493736Y1 (ko) 2020-04-22 2021-05-27 이상민 용액 및 분말 분사 기구

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03197338A (ja) * 1989-12-27 1991-08-28 Mitsubishi Materials Corp セメントクリンカ品質管理方法
JPH10197518A (ja) * 1997-01-13 1998-07-31 Mitsui Chem Inc 粉状物中の遊離石灰含有量を測定する方法及び装置
JP2008285370A (ja) * 2007-05-18 2008-11-27 Tokyo Institute Of Technology セメント組成物の製造方法
JP2011063451A (ja) * 2009-09-15 2011-03-31 Mitsubishi Materials Corp セメントの製造方法
JP2011207752A (ja) * 2010-03-12 2011-10-20 Mitsubishi Materials Corp セメントクリンカー焼成物とその製造方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2578834B1 (fr) 1985-03-13 1992-01-03 Fives Cail Babcock Procede et dispositif de conduite d'une installation de fabrication de clinker de ciment
DK49592D0 (da) * 1992-04-13 1992-04-13 Aalborg Portland As Cementkomposition
CN1098076A (zh) 1993-07-29 1995-02-01 张宝吉 立窑生产熟料聚焦技术
JP4403441B2 (ja) 1999-11-02 2010-01-27 住友大阪セメント株式会社 セメントおよびその製造方法
MXPA01007229A (es) * 2001-07-13 2003-08-19 Cemex Trademarks Worldwide Ltd Metodo para producir clinker de cemento utilizando coque de alto contenido de azufre.
WO2004078670A1 (ja) 2003-03-03 2004-09-16 Taiheiyo Cement Corporation セメント混和材
JP4166178B2 (ja) 2004-03-11 2008-10-15 太平洋セメント株式会社 水硬性組成物
FR2873366B1 (fr) * 2004-07-20 2006-11-24 Lafarge Sa Clinker sulfoalumineux a haute teneur en belite, procede de fabrication d'un tel clinker et son utilisation pour la preparation de liants hydrauliques.
JP2006282455A (ja) * 2005-03-31 2006-10-19 Sumitomo Osaka Cement Co Ltd セメント及びその製造方法
FR2946978B1 (fr) * 2009-06-17 2011-08-05 Lafarge Sa Procede industriel de fabrication de clinker sulfoalumineux
JP5791927B2 (ja) 2011-03-22 2015-10-07 株式会社デイ・シイ 高活性セメントクリンカの製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03197338A (ja) * 1989-12-27 1991-08-28 Mitsubishi Materials Corp セメントクリンカ品質管理方法
JPH10197518A (ja) * 1997-01-13 1998-07-31 Mitsui Chem Inc 粉状物中の遊離石灰含有量を測定する方法及び装置
JP2008285370A (ja) * 2007-05-18 2008-11-27 Tokyo Institute Of Technology セメント組成物の製造方法
JP2011063451A (ja) * 2009-09-15 2011-03-31 Mitsubishi Materials Corp セメントの製造方法
JP2011207752A (ja) * 2010-03-12 2011-10-20 Mitsubishi Materials Corp セメントクリンカー焼成物とその製造方法

Also Published As

Publication number Publication date
AU2013238358B2 (en) 2015-09-17
TW201400439A (zh) 2014-01-01
KR101687464B1 (ko) 2016-12-19
US9598312B2 (en) 2017-03-21
AU2013238358A1 (en) 2014-10-16
KR20140122763A (ko) 2014-10-20
JP5924484B2 (ja) 2016-05-25
MY171152A (en) 2019-09-27
JP2013203645A (ja) 2013-10-07
TWI561497B (en) 2016-12-11
CN104203862A (zh) 2014-12-10
IN2014DN08072A (enExample) 2015-05-01
US20150321956A1 (en) 2015-11-12

Similar Documents

Publication Publication Date Title
JP5665638B2 (ja) セメントクリンカーの製造方法
WO2013146186A1 (ja) クリンカ中の遊離石灰量を制御する方法
JP5598674B2 (ja) セメントクリンカー焼成物の製造方法
JP2012197198A (ja) 高活性セメントクリンカ及び高活性セメント
JP6282408B2 (ja) 水硬性組成物
FR2961505A1 (fr) Clinker et procede de preparation d'un ciment hydraulique a basse emission de co2 et haute resistance
JP5705021B2 (ja) セメントクリンカーの製造方法
JP6579928B2 (ja) セメントクリンカーの製造方法
JP6206670B2 (ja) 石英結晶子径に基づいて遊離石灰量を制御したクリンカーの製造方法と製造設備
JP6676355B2 (ja) 水硬性組成物
JP6516658B2 (ja) セメントクリンカー
WO2015037594A1 (ja) ポルトランドセメントクリンカーの製造方法
JP2021143108A (ja) セメントクリンカー
JP6353264B2 (ja) 流動性改善型セメントクリンカー
JP6249160B2 (ja) 石英結晶子径に基づいて遊離石灰量を制御したクリンカーの製造方法
WO2012063782A1 (ja) β－２ＣａＯ・ＳｉＯ２の製造方法
JP5623329B2 (ja) 流動性改善型セメントクリンカー
JP5976069B2 (ja) セメントクリンカー
JP5903944B2 (ja) セメントクリンカーのｂ値の制御方法及びセメントクリンカーの製造方法
JP5907440B1 (ja) セメントクリンカ及びセメント組成物
JP2013203599A (ja) セメントクリンカーのｂ値の制御方法及びセメントクリンカーの製造方法
TH1401005681B (th) วิธีการสำหรับควบคุมปริมาณไลม์อิสระของคลิงเกอร์
JP2017114704A (ja) セメントクリンカーの製造方法
JP2002265242A (ja) セメントクリンカおよびセメント組成物
JP5907439B1 (ja) セメントクリンカ及びセメント組成物

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13768110

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20147025912

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 14388513

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2013238358

Country of ref document: AU

Date of ref document: 20130308

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 13768110

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE