JPH03115144A - Production of highly pulverized blast-furnace cement - Google Patents
Production of highly pulverized blast-furnace cementInfo
- Publication number
- JPH03115144A JPH03115144A JP25197189A JP25197189A JPH03115144A JP H03115144 A JPH03115144 A JP H03115144A JP 25197189 A JP25197189 A JP 25197189A JP 25197189 A JP25197189 A JP 25197189A JP H03115144 A JPH03115144 A JP H03115144A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- blast furnace
- roller mill
- pulverized
- specific surface
- 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.)
- Granted
Links
- 239000011400 blast furnace cement Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000004568 cement Substances 0.000 claims abstract description 16
- 239000002893 slag Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 10
- 239000010440 gypsum Substances 0.000 claims abstract description 10
- 238000010298 pulverizing process Methods 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 31
- 239000000463 material Substances 0.000 abstract description 6
- 238000000227 grinding Methods 0.000 description 14
- 239000002245 particle Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- C04B7/48—Clinker treatment
- C04B7/52—Grinding ; After-treatment of ground cement
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は高微粉高炉セメントの製造方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing highly finely divided blast furnace cement.
［従来の技術］
ＪＩＳ５２１１ （高炉セメント）によれば、「高炉セ
メントは、クリンカーと高炉スラグに適量の石こうを加
え、混合粉砕するか、または適宜に組み合せて粉砕した
ものを十分に混合してつくる。」と規定されている０通
常、前者の製法を混合粉砕方式と呼び、後者の製法を分
離粉砕方式と呼んでいる。[Prior Art] According to JIS5211 (Blast Furnace Cement), ``Blast furnace cement is made by adding an appropriate amount of gypsum to clinker and blast furnace slag, and mixing and pulverizing the mixture, or by thoroughly mixing the pulverized mixture in an appropriate combination. Normally, the former method is called the mixed pulverization method, and the latter method is called the separate pulverization method.
従来、セメント工業では、高炉セメントの粉砕は、ボー
ルミルによる閉回路方式が主流であり、実用セメントの
粉末度もプレーン比表面積で３．０００〜４，０００ｃ
ｍ″／ｇ程度である。Conventionally, in the cement industry, blast furnace cement has been pulverized using a closed-circuit method using a ball mill, and the fineness of practical cement is 3.000 to 4,000 c in plain specific surface area.
It is about m″/g.
［発明が解決しようとする課題１
ボールミルでセメントをプレーン比表面積６．００００
ｍ″／ｇ以上に高微粉砕すると、粉砕の熱エネルギーに
より、石こうの形態変化を生じ、品質に悪影響をおよぼ
す、また、粒度分布が広くなり、用途が限定される。こ
のためプレーン比表面積８，０００ｃｒｎ”／ｇ以上の
セメントを得る場合には、ボールミルでプレーン比表面
積６．０００ｃｒｎ”／ｇ程度に粉砕したセメントを気
流分級機により、微粉部分のみを分離する方法で製造さ
れている。[Problem to be solved by the invention 1: Preparing cement using a ball mill with a plain specific surface area of 6.0000
If it is highly finely pulverized to more than m''/g, the thermal energy of the pulverization causes a change in the shape of the gypsum, which has an adverse effect on quality, and the particle size distribution becomes wider, limiting its uses.For this reason, plain specific surface area 8 ,000 crn"/g or more, cement is produced by pulverizing cement to a plain specific surface area of about 6.000 crn"/g using a ball mill and separating only the fine powder portion using an air classifier.
しかし、この方法では、ボールミルによる粉砕工程と気
流分級機による分級工程の２つの工程を具備することか
ら、分級工程の処理量が小さく、粉砕工程の処理量との
マスバランスが合わないために、輸送及び貯蔵設備を必
要とすることおよび分級前のセメントには粗粒も多く含
むため、収率が低く、分級後の粗粉の処理にも設備が必
要になるなど設備コストが高くなるうえ、製造工程の電
力原単位も高いという欠点がある。また、混合粉砕され
た高炉セメントは構成化合物の被粉砕性に差があるため
、これと分級した後の高炉セメントの組成は異なり、目
的とする組成のものを得るのがむつかしく、運転管理上
マスバランスの調整がしすらいという難点がある。However, since this method includes two steps: a crushing step using a ball mill and a classification step using an air classifier, the throughput of the classification step is small and the mass balance with the throughput of the crushing step is not matched. It requires transportation and storage equipment, and since the cement before classification contains many coarse particles, the yield is low, and equipment is required to process the coarse powder after classification, which increases equipment costs. The drawback is that the electricity consumption rate in the manufacturing process is also high. In addition, because the mixed and pulverized blast furnace cement has a difference in the pulverizability of its constituent compounds, the composition of the blast furnace cement after classification is different, making it difficult to obtain the desired composition, and making it difficult to manage operations. The problem is that it is difficult to adjust the balance.
したがって、本発明においては、従来の製造方法にない
分級も兼ね合せた直接粉砕工程のみで、所要の高微粉高
炉セメントを得ることを技術的課題とする。Therefore, the technical objective of the present invention is to obtain the required highly finely powdered blast furnace cement using only a direct pulverization process that also includes classification, which is not available in conventional production methods.
［課題を解決するための手段］
上記の技術的課題を解決するために、本発明は、セメン
トクリンカ−９高炉スラグ、石こうの混合物を第４図に
示すような堅型ローラミルで、乾燥、粉砕２分級、混合
を同時に行うことにより、プレーン比表面積６，０００
〜１２，０００ｃ ｍ” ／ ｇの高微粉末に粉砕する
。すなわち、本発明はボールミルによる粉砕工程と気流
分級機による粉砕工程の二つの工程を具備した製造方法
によって製造された高炉セメントと同質以上の高微粉高
炉セメントを、従来の製造方法とは全く異なる堅型ロー
ラミルで、粉砕して得る方法である。[Means for Solving the Problems] In order to solve the above-mentioned technical problems, the present invention involves drying and pulverizing a mixture of cement clinker-9 blast furnace slag and gypsum in a vertical roller mill as shown in FIG. By performing two classifications and mixing at the same time, the plane specific surface area is 6,000.
The cement is ground into a highly fine powder of ~12,000 cm"/g. In other words, the present invention has the same quality or higher quality as blast furnace cement manufactured by a manufacturing method comprising two steps: a grinding process using a ball mill and a grinding process using an air classifier. This method is obtained by pulverizing highly finely powdered blast furnace cement using a rigid roller mill, which is completely different from conventional manufacturing methods.
［作用］ 上記の技術的手段は次のように作用する。[Effect] The above technical means works as follows.
まず、堅型ローラミルの特徴として、■湿った材料でも
熱風により、乾燥同時粉砕ができる。First of all, the features of the rigid roller mill are: 1. Even wet materials can be simultaneously dried and pulverized using hot air.
■ローラの押し付は圧力、ミル内の通風量、内部分級機
の回転速度、テーブルの回転速度を適宜設定することに
より、プレーン比表面積３ 、０００〜１２，０００ｃ
ｒｎ”／ｇまでの広い範囲の微粉末製品を１台の粉砕機
で製造することができる。■The pressure of the roller can be adjusted to a plane specific surface area of 3,000 to 12,000c by appropriately setting the pressure, the amount of ventilation inside the mill, the rotational speed of the internal classifier, and the rotational speed of the table.
A wide range of fine powder products up to rn''/g can be produced in one mill.
■粉砕比が大きい、■ボールミル粉砕に比べて粉砕効率
が高く、電力消費量が小さい、■圧縮と剪断作用によっ
て粉砕が行なわれ、気流搬送方式であるため、粉砕温度
の上昇が小さい、■内部循環作用によって混合が行われ
るので異なった組成の材料の混合粉砕が可能である。■High grinding ratio, ■High grinding efficiency and low power consumption compared to ball mill grinding, ■Crushing is performed by compression and shearing action, and the air flow conveyance method reduces the rise in grinding temperature; ■Internal Since the mixing takes place through a circulation action, it is possible to mix and grind materials of different compositions.
以下、本発明の作用方法を示す。The method of operation of the present invention will be described below.
第４図に示す高炉セメントの混合粉砕では、貯蔵ホッパ
ー１６に貯蔵されたセメントクリンカ−９湿潤高炉スラ
グ、石こうをそれぞれ単独の定量供給機１５により、所
定の割合で計量して、堅型ローラミル１に供給コンベヤ
６および供給シュート７によって供給する。一方、堅型
ローラミルｌには、熱風発生炉１２より熱風を送って、
通風路１１より混入され、湿潤高炉スラグの乾燥と粉砕
、混合を粉砕テーブル３および粉砕ローラ４を使用して
同時に行う、堅型ローラミル１には分級機５が内蔵され
ており、所定の粉末度になった微粉のみが気流によって
ミル外にエギゾーストファン１４で吸引されて搬送され
、バッグフィルター１３の集じん装置で捕集され製品と
なる。In the mixed pulverization of blast furnace cement shown in FIG. is fed by a feed conveyor 6 and a feed chute 7. On the other hand, hot air is sent from the hot air generating furnace 12 to the rigid roller mill l,
A vertical roller mill 1 has a built-in classifier 5, which simultaneously dries, grinds, and mixes the wet blast furnace slag that is mixed in through the ventilation passage 11 using a grinding table 3 and grinding rollers 4. Only the resulting fine powder is sucked and conveyed by the exhaust fan 14 outside the mill by the air current, and is collected by the dust collecting device of the bag filter 13 to become a product.
一方、分級粗粉は粉砕テーブル３上に戻されて再度、粉
砕作用を受ける。かくして、ミル内部で乾燥、粉砕１分
級、混合が同時に行われ、容易に所定の粉末度の高炉セ
メントの製造ができる。On the other hand, the classified coarse powder is returned onto the crushing table 3 and subjected to the crushing action again. In this way, drying, pulverization, classification, and mixing are performed simultaneously inside the mill, making it easy to manufacture blast furnace cement with a predetermined powder degree.
製品の粉末度は、ミルへの給鉱量、ローラの押し付は圧
力、ミル通風量、セパレータの回転速度および粉砕テー
ブルの回転速度等の粉砕条件を変えることにより容易に
変更することができる。このように、本発明の製造方法
は堅型ローラミルにより、セメントクリンカ−９湿潤高
炉スラグ、石こうを同時に乾燥、粉砕９分級、混合して
高微粉高炉セメントを製造することができる。The fineness of the product can be easily changed by changing the grinding conditions such as the amount of ore fed to the mill, the pressure of the rollers, the amount of ventilation in the mill, the rotational speed of the separator, and the rotational speed of the grinding table. As described above, in the manufacturing method of the present invention, high-fine blast furnace cement can be manufactured by simultaneously drying, pulverizing, and mixing cement clinker-9 wet blast furnace slag and gypsum using a vertical roller mill.
［実施例］ 以下に実施例に基づき説明する。[Example] This will be explained below based on examples.
第１図は堅型ローラミルで、高微粉高炉セメントの分離
粉砕方式と本発明による同じく堅型ローラミルでの混合
粉砕方式で製造する場合のプレーン比表面積と粉砕能力
比との関係を示す、セメントクリンカ−と高炉スラグを
別々に粉砕した後、所定の割合に混合する分離粉砕方式
に比べて１本発明の混合粉砕方式の方が同一プレーン比
表面積に対して能力が大きいことが分る。これは湿潤ス
ラグの混入によってローラとテーブル間の材料の噛み込
み状態が向上したためである。Figure 1 shows the relationship between the plain specific surface area and the crushing capacity ratio of cement clinker produced using a rigid roller mill using a separate pulverization method for high-fine blast furnace cement and a mixed pulverization method using the same rigid roller mill according to the present invention. It can be seen that the mixed pulverization method of the present invention has a larger capacity for the same plane specific surface area than the separate pulverization method in which the slag and blast furnace slag are separately pulverized and then mixed in a predetermined ratio. This is because the mixing of wet slag improved the state of material interlocking between the roller and table.
第２図は、堅型ローラミルにおいて高微粉高炉セメント
を製造する場合のプレーン比表面積とミル電力原単位比
との関係を示す、同じプレーン比表面積の製品を得るの
に、本発明の混合粉砕方式によれば、ミル電力原単位は
、分離粉砕方式に比べて、約２５％小さくなることがわ
かる。Figure 2 shows the relationship between plain specific surface area and mill power consumption ratio when high-fine blast furnace cement is produced in a rigid roller mill. According to the above, it can be seen that the mill power consumption is approximately 25% smaller than that of the separate pulverization method.
第１表および第３図は、堅型ローラミルで高微粉高炉セ
メントを分離粉砕方式と本発明による方式すなわち混合
粉砕方式で製造した場合の粒度分布例を示す、第３図に
は参考のために市販されている高炉セメントの粒度分布
も示した（プレーン比表面積３７００ｃｒｎ’／ｇ）、
分離粉砕方式と本発明の方法により粉砕したプレーン比
表面積の等しい製品は、粒度分布も大略近似しているこ
とがわかる。Table 1 and Figure 3 show examples of particle size distribution when high-fine blast furnace cement is manufactured using a vertical roller mill using the separate pulverization method and the method according to the present invention, that is, the mixed pulverization method. The particle size distribution of commercially available blast furnace cement is also shown (plain specific surface area 3700 crn'/g).
It can be seen that the products having the same plain specific surface area crushed by the separate crushing method and the method of the present invention have approximately similar particle size distributions.
（以下、余白）
第２表は高微粉高炉セメントの化学成分を示し、第３表
は堅型ローラミルによる高微粉高炉セメントの品質試験
結果例を示す。(Hereinafter, blank spaces) Table 2 shows the chemical components of high-fine blast furnace cement, and Table 3 shows examples of quality test results of high-fine blast furnace cement using a rigid roller mill.
分離粉砕方式と本発明による混合粉砕方式とでは、製品
の品質に顕著な差は見られない０品質は同等であること
がわかる。It can be seen that there is no noticeable difference in product quality between the separate pulverization method and the mixed pulverization method according to the present invention, and that the product quality is the same.
（以下、余白）
本発明による方法で製造した高微粉高炉セメントは、無
機質、無公害の「超微粒子注入材」として強度、浸透性
にすぐれるため、ダム基礎の岩盤処理、トンネル、都市
土木等における遮水、地盤強化等の目的に使用される。(Hereinafter, blanks) Highly fine powder blast furnace cement produced by the method of the present invention has excellent strength and permeability as an inorganic and non-polluting "ultrafine particle injection material", so it can be used for rock treatment of dam foundations, tunnels, urban civil engineering, etc. It is used for purposes such as water shielding and ground reinforcement.
［発明の効果］ 本発明によれば、以下のような効果がある。[Effect of the invention] According to the present invention, there are the following effects.
（１）セメントクリンカ−１高炉スラグ、石こうを、そ
れぞれ、単独でもプレーン比表面積６．０００〜１２，
０００ｃｍ”７ｇの高微粉に仕上げることができる。(1) Cement clinker-1 Blast furnace slag and gypsum each have a plain specific surface area of 6.000 to 12.
000cm" can be finished into a highly fine powder of 7g.
（２）高炉スラグは通常ｌＯ〜１５％の水分を含有して
おり、ボールミルで粉砕する場合には、前工程として乾
燥機が必要であったが、本発明の方法によれば、湿潤高
炉スラグとセメントクリンカ−９石こうを同時に供給し
て乾燥、混合粉砕ができるため乾燥工程は不要である。(2) Blast furnace slag normally contains 10 to 15% moisture, and when grinding with a ball mill, a dryer was required as a pre-process, but according to the method of the present invention, wet blast furnace slag A drying step is not necessary since drying, mixing and pulverization can be performed by simultaneously supplying cement clinker and gypsum.
（３）粉砕温度が低いため、石こうの形態変化がない。(3) Because the grinding temperature is low, there is no change in the morphology of the gypsum.
（４）原料から一気に微粉砕製品をつくり出すため、原
料の組成と製品の組成は同じものが得られる。(4) Since a finely pulverized product is produced from raw materials at once, the composition of the raw materials and the composition of the product can be the same.
（５）混合粉砕方式であるから製品貯蔵庫も１基ですみ
、計量、混合装置が不要である。このため、運転費用、
設備費用とも分離粉砕方式に比べて大幅に小さくなる。(5) Since it is a mixed pulverization method, only one product storage is required, and measuring and mixing devices are not required. For this reason, operating costs,
The equipment cost is also significantly lower than that of the separate crushing method.
（６）粉末度の調整は、操作条件を変えるだけで対応で
き、各種の粒度の製品が製造できる。(6) Fineness can be adjusted by simply changing operating conditions, and products with various particle sizes can be manufactured.
第１図は、堅型ローラミルで高微粉高炉セメントを混合
粉砕した場合と分離粉砕した場合のプレーン比表面積と
粉砕能力比との関係を示す。
第２図は、堅型ローラミルにおいて高微粉高炉セメント
を製造する場合のプレーン比表面積とミル原単位比との
関係を示す。
第３図は、堅型ローラミルで高微粉高炉セメントを混合
粉砕した場合、分離粉砕した場合、および、市販されて
いる高炉セメントの、それぞれの粒径と残分重量の関係
を示す。
第４図は、堅型ローラミルにおいて粉砕と分級の混合粉
砕をする場合の概略の縦断面図を示す。
ｌ・・・堅型ローラミル、 ３・・・粉砕テーブル、
４・・・粉砕ローラ、 ５・・・分級機、６・・・
供給コンベヤ、 ７・・・供給シュート、１１・・・
通風路、 １２・・・熱風発生炉、１３・・・
バッグフィルター
１４・・・エキゾーストファン、FIG. 1 shows the relationship between the plain specific surface area and the grinding capacity ratio when high-fine blast furnace cement is mixed and ground in a vertical roller mill and when it is separately ground. FIG. 2 shows the relationship between the plain specific surface area and the mill basic unit ratio when high-fine blast furnace cement is produced in a rigid roller mill. FIG. 3 shows the relationship between particle size and residual weight of high-fine blast furnace cement mixed and pulverized in a vertical roller mill, separately pulverized, and commercially available blast furnace cement. FIG. 4 shows a schematic vertical cross-sectional view of the case where mixed pulverization of pulverization and classification is performed in a rigid roller mill. l...Rigid roller mill, 3...Crushing table,
4... Grinding roller, 5... Classifier, 6...
Supply conveyor, 7... Supply chute, 11...
Ventilation duct, 12...Hot air generating furnace, 13...
Bag filter 14...exhaust fan,
Claims (1)
型ローラミルで乾燥、粉砕、分級、混合を同時におこな
うことにより、プレーン比表面積６，０００〜１２，０
００ｃｍ＾２／ｇの微粉末に粉砕することを特徴とした
高微粉高炉セメントの製造方法。By simultaneously drying, pulverizing, classifying, and mixing a mixture of cement clinker, blast furnace slag, and gypsum using a rigid roller mill, a plain specific surface area of 6,000 to 12,0
A method for producing high-fine blast furnace cement, characterized by pulverizing it into a fine powder of 00 cm^2/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1251971A JP2626820B2 (en) | 1989-09-29 | 1989-09-29 | Manufacturing method of high fine powder blast furnace cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1251971A JP2626820B2 (en) | 1989-09-29 | 1989-09-29 | Manufacturing method of high fine powder blast furnace cement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03115144A true JPH03115144A (en) | 1991-05-16 |
| JP2626820B2 JP2626820B2 (en) | 1997-07-02 |
Family
ID=17230720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1251971A Expired - Lifetime JP2626820B2 (en) | 1989-09-29 | 1989-09-29 | Manufacturing method of high fine powder blast furnace cement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2626820B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0792848A1 (en) * | 1996-03-01 | 1997-09-03 | F.L. Smidth & Co. A/S | Method for manufacturing cement |
| KR20030018723A (en) * | 2001-08-31 | 2003-03-06 | 에이앤비콘크리트(주) | A Concrete-block for Crib Retaining Wall |
| KR100445076B1 (en) * | 2001-08-31 | 2004-09-01 | 주식회사 그린월 | A Concrete-block for Crib Retaining Wall |
| US7410537B2 (en) * | 2006-07-25 | 2008-08-12 | Council Of Scientific & Industrial Research | Process for the production of Portland slag cement using granulated blast furnace slag |
| JP2011207678A (en) * | 2010-03-30 | 2011-10-20 | Ube Industries Ltd | Apparatus and method for producing cement |
| JP2013500931A (en) * | 2010-04-23 | 2013-01-10 | ロエシェ ゲーエムベーハー | How to grind crushed material |
| JP2019172523A (en) * | 2018-03-29 | 2019-10-10 | 宇部興産株式会社 | Cement composition and manufacturing method therefor |
-
1989
- 1989-09-29 JP JP1251971A patent/JP2626820B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0792848A1 (en) * | 1996-03-01 | 1997-09-03 | F.L. Smidth & Co. A/S | Method for manufacturing cement |
| KR20030018723A (en) * | 2001-08-31 | 2003-03-06 | 에이앤비콘크리트(주) | A Concrete-block for Crib Retaining Wall |
| KR100445076B1 (en) * | 2001-08-31 | 2004-09-01 | 주식회사 그린월 | A Concrete-block for Crib Retaining Wall |
| US7410537B2 (en) * | 2006-07-25 | 2008-08-12 | Council Of Scientific & Industrial Research | Process for the production of Portland slag cement using granulated blast furnace slag |
| JP2011207678A (en) * | 2010-03-30 | 2011-10-20 | Ube Industries Ltd | Apparatus and method for producing cement |
| JP2013500931A (en) * | 2010-04-23 | 2013-01-10 | ロエシェ ゲーエムベーハー | How to grind crushed material |
| US8905336B2 (en) | 2010-04-23 | 2014-12-09 | Loesche Gmbh | Method for comminution of mill feed |
| JP2019172523A (en) * | 2018-03-29 | 2019-10-10 | 宇部興産株式会社 | Cement composition and manufacturing method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2626820B2 (en) | 1997-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4940134B2 (en) | Processing system for producing composite cementitious materials with low carbon dioxide emission | |
| CN101384518B (en) | Method and plant for drying and comminution of moist, mineral raw materials | |
| JP5644955B2 (en) | Granulation method of sintering raw material | |
| CN102795862A (en) | Device and method for preparing permanent magnet ferrite presintering material by dry process | |
| JP2003509191A (en) | Method for improving cement clinker milling in mills using rollers | |
| CN110951279A (en) | Preparation method of superfine acicular wollastonite modified spherical silicon dioxide composite powder | |
| CN112010579A (en) | Production method of superfine steel slag powder | |
| KR100650175B1 (en) | Grinding aid for minuteness shatter of mineral | |
| JPH03115144A (en) | Production of highly pulverized blast-furnace cement | |
| Genç et al. | Energy-Efficient technologies in cement grinding | |
| CN108178541A (en) | A kind of method for preparing raw material that sulphate aluminium cement is prepared for solid waste cooperative compensating | |
| JP2548558B2 (en) | Method for producing hydraulic fine powder | |
| JPH0764603B2 (en) | Method for crushing cement clinker etc. by vertical roller mill | |
| JP3518736B2 (en) | Method for producing granulated blast furnace slag sand | |
| JP3707356B2 (en) | Method for producing fly ash cement | |
| JP6912696B2 (en) | Hydraulic lime and its manufacturing method | |
| JPH0210787B2 (en) | ||
| JP2775486B2 (en) | Cement clinker grinding method | |
| JPH01104723A (en) | Production of sintering raw material from iron making dust | |
| JPH01119351A (en) | Method for manufacturing fine powder | |
| JPH0142905B2 (en) | ||
| KR960006220B1 (en) | Apparatus and method for cement of powder phase | |
| JPH10203852A (en) | Production of ultrafine power of blast furnace watergranulated slag | |
| Benzer et al. | Cement clinker grinding practice and technology | |
| CN108025314B (en) | Method and apparatus for preparing and activating green stock |