WO2008069115A1 - セメント製造装置及び製造方法 - Google Patents
セメント製造装置及び製造方法 Download PDFInfo
- Publication number
- WO2008069115A1 WO2008069115A1 PCT/JP2007/073140 JP2007073140W WO2008069115A1 WO 2008069115 A1 WO2008069115 A1 WO 2008069115A1 JP 2007073140 W JP2007073140 W JP 2007073140W WO 2008069115 A1 WO2008069115 A1 WO 2008069115A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- unburned carbon
- cement
- fly ash
- gypsum
- contained
- Prior art date
Links
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/18—Devices for distributing road-metals mixed with binders, e.g. cement, bitumen, without consolidating or ironing effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/006—Hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation 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
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- 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
- C04B7/48—Clinker treatment
- C04B7/52—Grinding ; After-treatment of ground cement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
- B03D2203/08—Coal ores, fly ash or soot
-
- 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
- C04B2111/1087—Carbon free or very low carbon content fly ashes; Fly ashes treated to reduce their carbon content or the effect thereof
-
- 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
Definitions
- the present invention relates to a cement manufacturing apparatus and manufacturing method, and in particular, a cement manufacturing apparatus and manufacturing method capable of increasing the amount of fly ash used while keeping the unburned carbon content of cement within an allowable range. About.
- fly ash generated in coal-fired thermal power plants and the like has been used as a raw material for cement admixtures, concrete admixtures, artificial lightweight aggregates, and the like.
- various problems occur. Therefore, it is necessary to remove the unburned carbon, and many techniques have been proposed.
- fly ash is used as a cement admixture, the ability to add wet ash before cement mill after decarburization by wet flotation is a method that can minimize equipment costs and operating costs. It is thought! /
- fly ash when fly ash is used as a cement mixture, water is added to the fly ash to form a slurry, and then a foaming agent is added and bubbles are generated while stirring.
- the unburned carbon of fly ash was attached to the ash, the bubbles were removed, the unburned carbon in the fly ash was removed, and then pulverized by a cement mill together with the cleansing force (see, for example, Patent Document 1).
- Patent Document 1 Japanese Patent No. 3613347
- the present invention has been made in view of the above problems in the conventional technology, and increases the amount of fly ash used while keeping the unburned carbon content of cement within an allowable range. It is an object of the present invention to provide a cement manufacturing apparatus and a manufacturing method that can be used.
- unburned carbon contained in cement mixed with fly ash is not only unburned carbon in fly ash but also in gypsum. It is possible to greatly reduce the unburned carbon content of the cement by removing the unburned carbon in the gypsum before mixing the gypsum with the cleansing power. I found out.
- the present invention has been made on the basis of force and knowledge, and is a cement manufacturing apparatus, which includes a removing means for removing unburned carbon contained in gypsum, and an unburned carbon is removed by the removing means.
- a special feature is the provision of a crushing means for crushing the removed gypsum together with a cleansing force to produce cement.
- the unburned carbon content of the cement can be reduced by the amount by which the unburned carbon contained in the gypsum is removed by the removing means.
- the amount of fly ash used can be increased by the amount of removal of unburned carbon contained in gypsum by the removal means. It is possible to increase the amount of fly ash used while keeping the amount within an acceptable range.
- the removing means removes unburned carbon contained in the gypsum and unburned carbon contained in the fly ash. Removed fly ash from gypsum from which unburned carbon has been removed And it can also comprise so that it may grind
- the removing means may be configured to remove unburned carbon contained in gypsum at the same time as removing unburned power contained in fly ash.
- the time required for the removal process can be shortened and the operating cost can be further reduced.
- measuring means for measuring the unburned carbon content of the cement produced by the pulverizing means, and the mixing amount of the flyash to the cement based on the measurement value by the measuring means It is also possible to provide a calculating means for calculating. If the amount of fly ash mixed is set based on the value calculated by the calculation means, it is possible to reliably prevent the unburned carbon content of the cement from exceeding the allowable value due to excessive fly ash mixing. In addition, fly ash can be mixed to near the limit where the unburned carbon content of the cement falls within the allowable range, and the fly ash should be used efficiently while ensuring the prescribed cement quality. Will also be possible.
- the present invention is a method for producing cement, characterized in that unburned carbon contained in gypsum is removed, and gypsum from which unburned carbon has been removed is pulverized together with a cleansing force to produce cement. To do. This makes it possible to increase the amount of fly ash used while keeping the unburned carbon content of the cement within an allowable range, as in the above-described invention.
- the unburned carbon contained in the gypsum is removed, the unburned carbon contained in the fly ash is removed, and the fly ash from which the unburned carbon is removed is replaced with the gypsum from which the unburned carbon is removed. And it can also grind
- unburned carbon contained in gypsum can be removed simultaneously with removal of unburned carbon contained in fly ash.
- the unburned carbon content of the cement may be measured, and the amount of the fly ash mixed into the cement may be calculated based on the measured value.
- FIG. 1 shows a configuration example of a system to which the present invention, a cement manufacturing apparatus and a manufacturing method are applied.
- the system is roughly divided into a fly ash tank 1, a gypsum tank 2, a fly ash and A slurry tank 3 for adding water to gypsum to produce a slurry, and a surface reformer 5 for modifying the surface of unburned carbon by applying a shearing force after adding a collecting agent to the slurry.
- An adjustment tank 8 that generates foam by adding a foaming agent to the slurry; a flotation machine 12 that separates unburned carbon by attaching unburned carbon in fly ash and gypsum to the bubbles and floating; A solid-liquid separator 14 for solid-liquid separation of tailing from the flotation machine 12; a filter press 19 for solid-liquid separation of 12 flosses from the flotation machine 12 to obtain unburned carbon; Power silo 20 and ku Cement mill 21 that pulverizes the cement power, fly ash and gypsum to produce cement, and a part of the generated cement is sampled to measure the amount of unburned carbon in the cement and fly ash is measured based on the measured value. Consists of a supply amount controller 22 that controls the supply amount of fresh ash from tank 1.
- the fly ash tank 1 stores fly ash carried as waste from a coal-fired thermal power plant or the like, and supplies the amount of fly ash specified by the supply amount controller 22 to the slurry tank 3.
- the gypsum tank 2 stores gypsum generated by flue gas desulfurization equipment such as a thermal power plant and supplies an amount of gypsum corresponding to the amount of cleansing power supplied to the supply amount controller 22 to the slurry tank 3. Provided for.
- the slurry tank 3 is provided for generating a slurry with fly ash, gypsum and water, and internally provided with stirring blades for stirring the slurry.
- a fly ash tank 1, a gypsum tank 2, and a water supply device are provided in the previous stage of the slurry tank 3, and a pump 4 for sending the slurry to the surface reformer 5 is arranged in the subsequent stage of the slurry tank 3. .
- the surface reformer 5 is provided to modify the surface of the unburned carbon by applying a shearing force to the slurry and the collecting agent, or to pulverize particles contained in the slurry ultrafinely.
- the front stage of the surface reformer 5 includes a kerosene tank 7 for storing kerosene as a scavenger, and kerosene as a surface reformer.
- the adjustment tank 8 is for adding the foaming agent supplied from the foaming agent tank 10 via the pump 9 to the slurry and the collecting agent from the surface reformer 5 and mixing them. It has a stirring blade inside.
- a pump 11 for sending the slurry to the flotation machine 12 is disposed downstream of the adjustment tank 8.
- the flotation machine 12 is for separating unburned carbon from fly ash and gypsum by causing the unburned carbon in fly ash and gypsum to adhere to the air bubbles and floating.
- an air supply device for supplying air for generating bubbles is provided, and a pump 13 for sending tailing to the solid-liquid separator 14 is arranged downstream of the flotation machine 12. It is done.
- the solid-liquid separator 14 is provided for solid-liquid separation of the tailing containing fly ash and gypsum discharged from the flotation machine 12, and separates the tailing into cake and water.
- the separated cake that is, fly ash and gypsum (product) from which unburned carbon is removed, is supplied to the cake hot bar 16 and temporarily stored.
- the separated water is returned to the slurry tank 3.
- the filter press 19 is provided for solid-liquid separation of the floss containing unburned carbon from the flotation machine 12, and the unburned carbon contained in the separated cake can be used as fuel. . Further, the water discharged from the filter press 19 can be reused in the slurry tank 3 or the like via the pump 18.
- the cement mill 21 is provided to pulverize the cake supplied from the cake hopper 16 together with the cleaning force supplied from the cleaning force silo 20 to generate cement.
- Fly ash is supplied to the slurry tank 3 from the fly ash tank 1, and gypsum is supplied from the gypsum tank 2, and these are mixed with water to produce a slurry.
- gypsum is supplied from the gypsum tank 2 and these are mixed with water to produce a slurry.
- adjust the fly ashes concentration in the slurry to a range of 3 to 25% by mass and the concentration of gypsum to a range of 6 to 50% by mass, respectively.
- the slurry containing fly ash and gypsum in the slurry tank 3 is passed through the pump 4.
- kerosene as a scavenger is supplied from the kerosene tank 7 to the surface reformer 5 via the pump 6.
- common scavengers such as light oil and heavy oil.
- the amount of carbon added to this scavenger is adjusted to a range of 5 to 100% by mass of the total amount of unburned carbon in fly ash and unburned carbon in gypsum.
- a shearing force is applied to the slurry and the collecting agent, or particles contained in the slurry are crushed into fine particles.
- the slurry and the collecting agent to which shearing force is applied are discharged from the outlet of the surface reformer 5 and supplied to the adjustment tank 8.
- the foaming agent is supplied to the adjustment tank 8 via the pump 9, and the slurry, the scavenger and the foaming agent are mixed in the adjustment tank 8.
- the slurry and the scavenger are supplied to the flotation machine 12, and air is supplied to the flotation machine 12, and bubbles are generated in the flotation machine 12, and the bubbles are used as a scavenger. Adsorb the unburned carbon adsorbed, and remove air bubbles that have floated due to unburned carbon.
- the floss containing unburned carbon discharged from the flotation machine 12 is solid-liquid separated by the filter press 19 to recover the unburned carbon.
- the water dehydrated by the filter press 19 is supplied to the slurry tank 3 via the pump 18 to be newly added or reused in the flotation machine 12 for defoaming when attaching unburned carbon to bubbles. can do.
- the tailing containing fly ash and gypsum from the flotation machine 12 is solid-liquid separated by the solid-liquid separator 14. If the cake has a lot of moisture, the unburned carbon discharged from the filter press 19 is dried using hot air obtained by burning it in a hot air furnace to reduce the unburned carbon content to 1% by mass or less. The cake fly ash and gypsum reduced to 0.5% by mass or less are supplied to the cake hot tub 16.
- a cleansing force is supplied from the clean force silo 20 to the cement mill 21, and a cake is supplied from the cake hopper 16 to the cement mill 21.
- the unburned carbon is removed together with the clean force. Crush fly ash and gypsum to produce cement.
- a part of the cement produced by the cement mill 21 is sampled, the unburned carbon content is measured, and the mixable fly ash is added based on the measured value.
- Calculate the amount first, the difference between the target value of the permissible value of unburned carbon or the target value less than the permissible value and the measured value is calculated, and from the difference, the fly Back-calculate the added amount of chaff Thereafter, the calculated amount of fly ash added and the amount of fly ash added at the present time are added, and the value is set as the amount of fly ash supplied to the slurry tank 3.
- fly ash since fly ash is supplied to the cement mill 21 after removing unburned carbon, it is assumed that the fly ash has an unburned carbon content of about 1% by mass. calculate.
- a supply amount of fly ash to the slurry tank 3 is instructed from the supply amount controller 22 to the fly ash tank 1, and the supply amount of fly ash from the fly ash tank 1 is controlled.
- the addition amount greatly affects the setting time of the concrete, so it is determined to be a predetermined amount according to the desired cement properties.
- the unburned carbon removal device is shared by fly ash and gypsum, it is possible to reduce capital investment costs and prevent an increase in processing costs. become. Furthermore, since the unburned carbon in the fly ash is removed at the same time as the unburned carbon in the gypsum is removed, the time required for the removal treatment can be shortened and the treatment cost can be further reduced.
- a part of the cement generated by the cement mill 21 is sampled, the unburned carbon content is measured, and the supply amount of fly ash is determined based on the measured value. Therefore, it is possible to reliably prevent the unburned carbon content of the cement from exceeding the allowable value due to excessive supply of fly ash, and the unburned carbon content of the cement is within the allowable range. It is possible to supply fly ash to the limit amount that can be accommodated in the inside, and it is also possible to use fly ash efficiently while ensuring a predetermined cement quality.
- the fly ash and the gypsum from which the unburned carbon has been removed are simultaneously supplied to the cement mill 21 after the unburned carbon in the fly ash and the gypsum is removed at the same time.
- the process of removing unburned carbon in fly ash and the process of removing unburned carbon in plaster may be performed in separate steps! /.
- the wet ash method is used to remove unburned carbon in fly ash and unburned carbon in gypsum.
- fly ash and unburned carbon, Gypsum and unburned carbon can be removed using a dry separation method that separates each by electrostatic separation.
- a supply operator 22 is provided, and a force operator that automatically controls the supply amount of fly ash from the fly ash tank 1 is discharged from the cement mill 21 force. Measure the unburned carbon content of the cement, calculate the supply amount of fly ash based on the measured value, and set the supply amount of fly ash from fly ash tank 1 based on the calculated supply amount. Also good.
- FIG. 1 is a flow chart showing an example of a system in which the present invention is applied with a cement manufacturing apparatus and manufacturing method. Explanation of symbols
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07832837A EP2103576A4 (en) | 2006-12-05 | 2007-11-30 | CEMENT MANUFACTURING SYSTEM AND MANUFACTURING METHOD |
KR1020097012195A KR101441877B1 (ko) | 2006-12-05 | 2007-11-30 | 시멘트 제조장치 및 제조방법 |
US12/517,759 US20100011995A1 (en) | 2006-12-05 | 2007-11-30 | Cement manufacturing apparatus and method |
JP2008548252A JP5270370B2 (ja) | 2006-12-05 | 2007-11-30 | セメント製造装置及び製造方法 |
US13/368,222 US8636841B2 (en) | 2006-12-05 | 2012-02-07 | Cement manufacturing apparatus and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006327810 | 2006-12-05 | ||
JP2006-327810 | 2006-12-05 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/517,759 A-371-Of-International US20100011995A1 (en) | 2006-12-05 | 2007-11-30 | Cement manufacturing apparatus and method |
US13/368,222 Division US8636841B2 (en) | 2006-12-05 | 2012-02-07 | Cement manufacturing apparatus and method |
Publications (1)
Publication Number | Publication Date |
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WO2008069115A1 true WO2008069115A1 (ja) | 2008-06-12 |
Family
ID=39492012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/073140 WO2008069115A1 (ja) | 2006-12-05 | 2007-11-30 | セメント製造装置及び製造方法 |
Country Status (7)
Country | Link |
---|---|
US (2) | US20100011995A1 (ja) |
EP (1) | EP2103576A4 (ja) |
JP (1) | JP5270370B2 (ja) |
KR (1) | KR101441877B1 (ja) |
CN (2) | CN103951295A (ja) |
TW (1) | TWI488829B (ja) |
WO (1) | WO2008069115A1 (ja) |
Cited By (9)
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WO2011007837A1 (ja) * | 2009-07-17 | 2011-01-20 | 独立行政法人科学技術振興機構 | 浮遊分離装置及び方法並びにその利用製品の製造方法 |
JP2013536787A (ja) * | 2010-11-11 | 2013-09-26 | カイパー ゲーエムベーハー ウント コンパニー カーゲー | 車両シート特に自動車シート |
US9067824B1 (en) * | 2010-02-17 | 2015-06-30 | Roman Cement, Llc | Modification of pozzolanic chemistry through blending |
US9238591B2 (en) | 2011-10-20 | 2016-01-19 | Roman Cement, Llc | Particle packed cement-SCM blends |
US9272953B2 (en) | 2010-11-30 | 2016-03-01 | Roman Cement, Llc | High early strength cement-SCM blends |
US10131575B2 (en) | 2017-01-10 | 2018-11-20 | Roman Cement, Llc | Use of quarry fines and/or limestone powder to reduce clinker content of cementitious compositions |
US10730805B2 (en) | 2017-01-10 | 2020-08-04 | Roman Cement, Llc | Use of quarry fines and/or limestone powder to reduce clinker content of cementitious compositions |
US10737980B2 (en) | 2017-01-10 | 2020-08-11 | Roman Cement, Llc | Use of mineral fines to reduce clinker content of cementitious compositions |
US11168029B2 (en) | 2017-01-10 | 2021-11-09 | Roman Cement, Llc | Use of mineral fines to reduce clinker content of cementitious compositions |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1944278A4 (en) * | 2005-10-31 | 2013-12-25 | Taiheiyo Cement Corp | APPARATUS AND METHOD FOR ADDING MOISTURE AS WELL TO CEMENT |
KR101702191B1 (ko) * | 2011-02-10 | 2017-02-03 | 미쓰비시 가가꾸 가부시키가이샤 | 비수계 전해액 용액 및 그것을 적용한 비수계 전해액 이차 전지 |
CN106132896B (zh) * | 2013-09-25 | 2018-05-18 | 太平洋水泥株式会社 | 抽出冷却装置、氯旁通系统、水泥窑抽出气体的处理方法以及水泥烧成装置 |
KR20170031693A (ko) * | 2014-07-15 | 2017-03-21 | 우베 고산 가부시키가이샤 | 비수 전해액 및 그것을 이용한 축전 디바이스 |
CN108116892A (zh) * | 2016-11-29 | 2018-06-05 | 中冶京诚工程技术有限公司 | 高炉除尘灰输送装置及方法 |
KR102441204B1 (ko) * | 2017-03-30 | 2022-09-08 | 가부시끼가이샤 도꾸야마 | 개질 플라이 애시의 제조 방법 |
Citations (2)
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CN1630559A (zh) * | 1999-12-28 | 2005-06-22 | 匹兹堡矿物及环境技术公司 | 减少燃烧灰碳含量的方法和装置以及相关产品 |
JP2005104792A (ja) * | 2003-10-01 | 2005-04-21 | Tokuyama Corp | 石炭灰を使用したセメントの製造方法 |
KR20060123031A (ko) * | 2004-03-17 | 2006-12-01 | 덴끼 가가꾸 고교 가부시키가이샤 | 시멘트 혼화재, 시멘트 조성물, 모르타르 및 콘크리트 |
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2007
- 2007-11-30 KR KR1020097012195A patent/KR101441877B1/ko not_active IP Right Cessation
- 2007-11-30 TW TW096145632A patent/TWI488829B/zh not_active IP Right Cessation
- 2007-11-30 EP EP07832837A patent/EP2103576A4/en not_active Withdrawn
- 2007-11-30 US US12/517,759 patent/US20100011995A1/en not_active Abandoned
- 2007-11-30 WO PCT/JP2007/073140 patent/WO2008069115A1/ja active Application Filing
- 2007-11-30 JP JP2008548252A patent/JP5270370B2/ja not_active Expired - Fee Related
- 2007-11-30 CN CN201410135408.XA patent/CN103951295A/zh active Pending
- 2007-11-30 CN CNA2007800495163A patent/CN101578243A/zh active Pending
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Cited By (13)
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JP2011020070A (ja) * | 2009-07-17 | 2011-02-03 | Japan Science & Technology Agency | 浮遊分離装置及び方法並びにその利用製品の製造方法 |
AU2010271803B2 (en) * | 2009-07-17 | 2014-01-16 | Japan Science And Technology Agency | Method and device for flotation separation and method for producing products using same |
US9174856B2 (en) | 2009-07-17 | 2015-11-03 | Japan Science And Technology Agency | Floatation separation apparatus, method of floatation separation, and method of manufacturing products using the same |
WO2011007837A1 (ja) * | 2009-07-17 | 2011-01-20 | 独立行政法人科学技術振興機構 | 浮遊分離装置及び方法並びにその利用製品の製造方法 |
US9067824B1 (en) * | 2010-02-17 | 2015-06-30 | Roman Cement, Llc | Modification of pozzolanic chemistry through blending |
JP2013536787A (ja) * | 2010-11-11 | 2013-09-26 | カイパー ゲーエムベーハー ウント コンパニー カーゲー | 車両シート特に自動車シート |
US9272953B2 (en) | 2010-11-30 | 2016-03-01 | Roman Cement, Llc | High early strength cement-SCM blends |
US9238591B2 (en) | 2011-10-20 | 2016-01-19 | Roman Cement, Llc | Particle packed cement-SCM blends |
USRE49415E1 (en) | 2011-10-20 | 2023-02-14 | Roman Cement, Llc | Particle packed cement-SCM blends |
US10131575B2 (en) | 2017-01-10 | 2018-11-20 | Roman Cement, Llc | Use of quarry fines and/or limestone powder to reduce clinker content of cementitious compositions |
US10730805B2 (en) | 2017-01-10 | 2020-08-04 | Roman Cement, Llc | Use of quarry fines and/or limestone powder to reduce clinker content of cementitious compositions |
US10737980B2 (en) | 2017-01-10 | 2020-08-11 | Roman Cement, Llc | Use of mineral fines to reduce clinker content of cementitious compositions |
US11168029B2 (en) | 2017-01-10 | 2021-11-09 | Roman Cement, Llc | Use of mineral fines to reduce clinker content of cementitious compositions |
Also Published As
Publication number | Publication date |
---|---|
JPWO2008069115A1 (ja) | 2010-03-18 |
US8636841B2 (en) | 2014-01-28 |
TW200838831A (en) | 2008-10-01 |
US20120167806A1 (en) | 2012-07-05 |
EP2103576A1 (en) | 2009-09-23 |
CN101578243A (zh) | 2009-11-11 |
US20100011995A1 (en) | 2010-01-21 |
TWI488829B (zh) | 2015-06-21 |
JP5270370B2 (ja) | 2013-08-21 |
EP2103576A4 (en) | 2010-10-13 |
KR20090088903A (ko) | 2009-08-20 |
CN103951295A (zh) | 2014-07-30 |
KR101441877B1 (ko) | 2014-09-19 |
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