JP2506033B2 - Cement clinker firing equipment - Google Patents
Cement clinker firing equipmentInfo
- Publication number
- JP2506033B2 JP2506033B2 JP6313893A JP6313893A JP2506033B2 JP 2506033 B2 JP2506033 B2 JP 2506033B2 JP 6313893 A JP6313893 A JP 6313893A JP 6313893 A JP6313893 A JP 6313893A JP 2506033 B2 JP2506033 B2 JP 2506033B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- chute
- overflow
- granulated
- discharge
- 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.)
- Expired - Fee Related
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、噴流層、あるいは、流
動層型式の造粒炉の排出シュート構造を改善したセメン
トクリンカの焼成装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cement clinker burning apparatus having an improved discharge chute structure of a spouted bed or fluidized bed type granulating furnace.
【０００２】[0002]
【従来の技術】サスペンションプレヒータからなる予熱
手段により予熱されたセメント原料粉を、図５で示すよ
うに噴流層、あるいは、流動層型式の造粒炉に投入造粒
し、この造粒物を造粒炉の層内に接続させる排出シュー
トを介して流動層焼成炉に投入焼成するようにしたセメ
ントクリンカの焼成装置において、前記造粒炉で整粒さ
れた高温の造粒物を排出するシュート、または、シュー
トと炉排出口付近を、冷却媒体により直接的、または、
間接的に冷却し、造粒物による排出シュートの閉塞を防
止する手段が提案されている。（例えば、特開昭６２−
２３３６７７号公報参照）2. Description of the Related Art Cement raw material powder preheated by a preheating means consisting of a suspension preheater is put into a spouted bed or fluidized bed type granulating furnace as shown in FIG. In a cement clinker firing device for charging and firing in a fluidized bed firing furnace through a discharge chute connected in the layer of the granulating furnace, a chute for discharging a high temperature granulated product sized in the granulating furnace, Alternatively, the chute and the vicinity of the furnace outlet can be directly cooled by a cooling medium, or
It has been proposed to indirectly cool the discharge chute to prevent the discharge chute from being blocked. (For example, JP-A-62-1
(See Japanese Patent No. 233677)
【０００３】[0003]
【発明が解決しようとする課題】前述せる従来技術は、
図５で示すような造粒炉の層内に排出孔を設け、排出シ
ュート内に造粒物を充填して、マテリアルシールを維持
しながらＬバルブ（気密排出装置）を介し焼成炉に造粒
物を投入する従来の排出装置では、排出シュート内の造
粒物は造粒炉層内と同様な活発な動きがなく、移動層を
形成するために高温で一部溶融した造粒物は、排出孔付
近の排出シュート内で造粒物の相互付着、および、排出
シュート壁面への造粒物により排出シュートが閉塞し、
安定した造粒物の排出流れが確保できず操業が安定しな
いという問題が生じた。このように、造粒炉層内に排出
孔を設けた場合、排出孔付近の粒子を冷却するために冷
却空気などによる直接的、あるいは、排出シュート壁面
の間接冷却を行っても、冷却される造粒物は部分的に限
定されることに加え、造粒炉層内の粒子との混合により
排出シュート内の造粒物の冷却は不十分で、閉塞防止が
不完全であるという課題が残されている。The prior art described above is
A discharge hole is provided in the layer of the granulation furnace as shown in FIG. 5, the granulation material is filled in the discharge chute, and the granulation is performed in the firing furnace through the L valve (airtight discharge device) while maintaining the material seal. In the conventional discharging device for charging the material, the granulated material in the discharging chute does not have the same active movement as in the granulating furnace layer, and the granulated material partially melted at high temperature to form the moving bed is The discharge chute is blocked by mutual adhesion of the granulated material in the discharge chute near the discharge hole and the granulated material on the wall surface of the discharge chute.
There was a problem that the stable discharge flow of granules could not be secured and the operation was not stable. In this way, when the discharge holes are provided in the granulation furnace layer, the particles are cooled directly by cooling air or the like to cool the particles in the vicinity of the discharge holes, or even if the discharge chute wall surface is indirectly cooled. In addition to the partial limitation of the granulated product, there is a problem that the granulated product in the discharge chute is not sufficiently cooled due to the mixing with the particles in the granulating furnace layer and the clogging prevention is incomplete. Has been done.
【０００４】本発明の目的は、オーバーフローで排出し
た造粒物を吹き込みエアによって流動化して均一に冷却
し、造粒物の相互付着、および、排出シュート壁面への
造粒物の付着のないセメントクリンカの焼成装置を提供
することにある。The object of the present invention is to cement the granules discharged by overflow by blowing air to fluidize and uniformly cool the granules so that the granules do not adhere to each other and adhere to the wall surface of the discharge chute. It is to provide a clinker firing device.
【０００５】[0005]
【課題を解決するための手段】従来技術の課題を解決す
る本発明の構成は、サスペンションプレヒータなどの予
熱手段により予熱されたセメント原料粉を造粒炉に投入
造粒し、この造粒物を排出シュートを介して焼成炉に投
入焼成するようにしたセメントクリンカの焼成装置にお
いて、前記造粒炉に造粒物のオーバーフロー排出孔を設
けるとともに、このオーバーフロー排出孔に接続せる排
出シュートに、オーバーフロー造粒物の流動化冷却手段
をもつ流動層クーラ構造体を構成したものである。The constitution of the present invention which solves the problems of the prior art is to charge and granulate the cement raw material powder preheated by a preheating means such as a suspension preheater into a granulating furnace, and to granulate this granulated product. In a cement clinker calcination device that is put into a calcination furnace through a discharge chute and calcined, an overflow discharge hole for the granulated product is provided in the granulation furnace, and an overflow chute is connected to the overflow discharge hole. This is a fluidized bed cooler structure having fluidized cooling means for granules.
【０００６】[0006]
【作用】造粒炉で造粒されオーバーフローで排出した造
粒物は、流動層クーラ構造体の作用によって排出シュー
ト内で液相が生成しない温度（１２００℃以下）まで均
一に流動化冷却され、造粒物の相互付着、および、排出
シュート壁面への造粒物の付着を防止し、排出装置を介
して焼成炉に造粒物を円滑に供給する。The granulation product granulated in the granulation furnace and discharged by overflow is uniformly fluidized and cooled by the action of the fluidized bed cooler structure to a temperature (1200 ° C or less) at which no liquid phase is formed in the discharge chute, Mutual adhesion of the granulated material and adhesion of the granulated material to the wall surface of the discharge chute are prevented, and the granulated material is smoothly supplied to the firing furnace through the discharging device.
【０００７】[0007]
【実施例】次に、図面について本発明実施例の詳細を説
明する。図１は流動床セメント焼成設備を示す概略図、
図２は要部の断面図、図３は別実施例の要部の断面図、
図４は自動制御機構をもつ要部の断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, details of embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing a fluidized bed cement burning facility,
2 is a sectional view of a main part, FIG. 3 is a sectional view of a main part of another embodiment,
FIG. 4 is a sectional view of a main part having an automatic control mechanism.
【０００８】図１について装置の全体系統を説明する
と、１はサスペンションプレヒータで、該サスペンショ
ンプレヒータ１は、サイクロンＣ1，Ｃ2，Ｃ3によって
構成されている。原料投入シュート２から系内に投入さ
れたセメント原料粉は、サイクロンＣ3→Ｃ2→Ｃ1を経
て予熱されたのち流動層型式の造粒炉３内に投入され
る。造粒炉３内で流動整粒された造粒物は、オーバーフ
ロー排出孔から排出され排出シュート４からＬバルブ
（気密排出装置）５を経て流動層焼成炉６に投入せしめ
られ、焼成炉６において焼成せしめられたのち、流動床
クーラ７，移動床クーラ８を経てセメントクリンカとし
て回収される。図中９は微粉炭燃料供給ライン，１０は
重油バーナである。An overall system of the apparatus will be described with reference to FIG. 1. Reference numeral 1 is a suspension preheater, and the suspension preheater 1 is composed of cyclones C 1 , C 2 and C 3 . The cement raw material powder fed into the system from the raw material feeding chute 2 is preheated through a cyclone C 3 → C 2 → C 1 and then fed into a fluidized bed type granulating furnace 3. The granulated product that has been fluidized and granulated in the granulation furnace 3 is discharged from the overflow discharge hole, and is introduced into the fluidized bed firing furnace 6 from the discharge chute 4 through the L valve (airtight discharge device) 5, and in the firing furnace 6. After being fired, it is recovered as cement clinker through the fluidized bed cooler 7 and the moving bed cooler 8. In the figure, 9 is a pulverized coal fuel supply line, and 10 is a heavy oil burner.
【０００９】次に、図２について本発明の詳細を説明す
る。前記造粒炉３の一側に断面形状がＴ字形のオーバー
フロー排出孔１１を形成し、このオーバーフロー排出孔
１１の鉛直孔部１１ａに前記造粒物の排出シュート４の
上流端を接続する。該排出シュート４の上流端には、空
冷あるいは水冷ジャケット構造で、傾斜下端が炉体より
外側方に露出した冷却シュート部４ａが形成してあり、
この冷却シュート部４ａの傾斜下端部に続いて断面形状
がＬ字形で断熱構造のシュート部４ｂが連設されてい
る。そして、このシュート部４ｂの鉛直部底壁に多孔板
構造からなる分散板１２が設けてあり、分散板１２の外
部から矢印方向に冷却空気がシュート部４ｂ内に吹き込
まれ、造粒物の流動化と冷却が行われるようにしてあ
る。前記シュート部４ｂ，分散板１２により小型の流動
層クーラ構造体Ａが構成される。一方、前記オーバーフ
ロー排出孔１１と反対側の水平孔部１１ｂには、手動ま
たは制御手段により水平方向に往復移動するプラグ１３
が設けられており、このプラグ１３の移動によりオーバ
ーフロー排出孔１１の開度を調節し、造粒炉３の層内粒
子との混合度合を調整することができ、造粒炉３内の層
高が多少高くなっても、造粒物の順調な排出が損われる
ことがない。また、仮りにオーバーフロー排出孔１１に
造粒物の堆積，付着が生じても、前記プラグ１３の移動
により容易に除去できる。図中１４は造粒炉３の分散板
である。この実施例では、造粒炉３を流動層型式とした
が、噴流層型式にも適用しうるものであることから造粒
炉３の型式は図示のものに特定されることはない。Next, the details of the present invention will be described with reference to FIG. An overflow discharge hole 11 having a T-shaped cross section is formed on one side of the granulation furnace 3, and a vertical hole portion 11a of the overflow discharge hole 11 is connected to an upstream end of a discharge chute 4 of the granulated material. At the upstream end of the discharge chute 4, there is formed a cooling chute portion 4a having an air-cooled or water-cooled jacket structure, the lower end of which is inclined and exposed outside the furnace body.
A chute portion 4b having an L-shaped cross section and having a heat insulating structure is continuously provided following the inclined lower end portion of the cooling chute portion 4a. A dispersion plate 12 having a perforated plate structure is provided on the vertical bottom wall of the chute portion 4b, and cooling air is blown into the chute portion 4b from the outside of the dispersion plate 12 in the direction of the arrow to flow the granules. The cooling and cooling are performed. The chute portion 4b and the dispersion plate 12 constitute a small fluidized bed cooler structure A. On the other hand, in the horizontal hole portion 11b on the side opposite to the overflow discharge hole 11, a plug 13 that reciprocates in the horizontal direction manually or by a control means.
Is provided, the opening degree of the overflow discharge hole 11 can be adjusted by the movement of the plug 13, and the degree of mixing with the particles in the bed of the granulating furnace 3 can be adjusted, and the bed height in the granulating furnace 3 can be adjusted. Even if the value becomes slightly higher, the smooth discharge of the granulated product is not impaired. Further, even if the granulated material is accumulated or adhered to the overflow discharge hole 11, it can be easily removed by moving the plug 13. Reference numeral 14 in the drawing denotes a dispersion plate of the granulation furnace 3. In this embodiment, the granulating furnace 3 is of the fluidized bed type, but the type of the granulating furnace 3 is not limited to the one shown in the figure because it can be applied to the spouted bed type.
【００１０】図３は、図２に示した冷却シュート部４
ａ，流動層クーラ構造体Ａの別実施例を示している。前
記流動層クーラ構造体Ａを構成するシュート部４ｂの鉛
直部を前記オーバーフロー排出孔１１の鉛直孔部１１ａ
と一体化せしめるとともに、この鉛直孔部１１ａに冷却
ジャケット１４を配設したものである。図中１５は温度
計である。FIG. 3 shows the cooling chute section 4 shown in FIG.
a, another embodiment of the fluidized bed cooler structure A is shown. The vertical portion of the chute portion 4b constituting the fluidized bed cooler structure A is replaced with the vertical hole portion 11a of the overflow discharge hole 11.
In addition to being integrated with, the cooling jacket 14 is provided in the vertical hole portion 11a. In the figure, reference numeral 15 is a thermometer.
【００１１】図４は、前述せる図３の実施において、オ
ーバーフロー排出孔１１の鉛直孔部１１ａの上流端と、
前記分散板１２の近傍との間の圧力差△Ｐを計測し、こ
の圧力差△Ｐが設定差圧以上であり、かつ、流動層クー
ラ構造体Ａの層温度が基準温度より高くなれば、モータ
１６を作動してプラグ１３を閉の方向に移行させ、基準
温度域内になるようにプラグ１３の閉方向への移動調整
を行う。また、圧力差△Ｐが設定差圧以下になれば、プ
ラグ１３は開の方向に移動させ、圧力差△Ｐが設定差圧
内に入れば開動作を停止する。更に、圧力差△Ｐが設定
差圧で、前記温度計１５で計測された流動層クーラ構造
体Ａの層温度が１２００℃以下になるようバルブ１７の
開度を調節し、流動化冷却空気量を制御する。但し、こ
の流動化冷却空気量は流動層クーラ構造体Ａ内の造粒物
の最小流動化速度以下にしない。図中１８は差圧計，１
９は制御装置である。FIG. 4 shows the upstream end of the vertical hole portion 11a of the overflow discharge hole 11 in the embodiment shown in FIG.
If the pressure difference ΔP with the vicinity of the dispersion plate 12 is measured and the pressure difference ΔP is equal to or higher than the set pressure difference and the bed temperature of the fluidized bed cooler structure A becomes higher than the reference temperature, The motor 16 is operated to move the plug 13 in the closing direction, and the movement of the plug 13 in the closing direction is adjusted so as to be within the reference temperature range. When the pressure difference ΔP becomes less than or equal to the set pressure difference, the plug 13 is moved in the opening direction, and when the pressure difference ΔP falls within the set pressure difference, the opening operation is stopped. Further, the pressure difference ΔP is a set differential pressure, and the opening degree of the valve 17 is adjusted so that the bed temperature of the fluidized bed cooler structure A measured by the thermometer 15 becomes 1200 ° C. or less, and the fluidized cooling air amount is adjusted. To control. However, this fluidized cooling air amount is not set to be equal to or less than the minimum fluidized velocity of the granules in the fluidized bed cooler structure A. In the figure, 18 is a differential pressure gauge, 1
Reference numeral 9 is a control device.
【００１２】[0012]
【発明の効果】上述のように本発明の構成によれば、次
のような効果が得られる。 （ａ）造粒炉に供給されたセメント原料粉を造粒し、得
られた造粒物を排出シュートを介して焼成炉に投入焼成
してセメントクリンカが連続的に製造しうることは勿論
のこと、 （ｂ）造粒炉内に造粒された造粒物をオーバーフロー手
段で排出するとともに、排出シュートに造粒物の流動化
冷却手段をもつ流動層クーラ構造体を構成したことによ
り、オーバーフローで排出した造粒物を液相が生成しな
い温度（１２００℃以下）に均一に、而も、確実に冷却
することができる。従って従来技術のような造粒物の相
互付着、および、シュート壁面への付着を完全に防止
し、焼成炉への円滑な供給がなしうる。 （ｃ）オーバーフロー排出シュートの一部を鉛直方向と
しているので、流動層クーラ構造体内の冷却された造粒
物と、造粒炉内の高温の造粒物との混合が合理的に阻止
され、流動層クーラ構造体における造粒物の流動化冷却
が効率よく行える。その結果、造粒物の排出が順調に行
われ、流動層クーラ構造体の冷却媒体の顕熱は後流側の
原料予熱装置で回収でき、熱効率を損うことがない。As described above, according to the structure of the present invention, the following effects can be obtained. (A) Needless to say, the cement clinker can be continuously produced by granulating the cement raw material powder supplied to the granulating furnace and charging the obtained granulated product into the calcining furnace through the discharge chute. (B) By overflowing the granulated material granulated in the granulating furnace by the overflow means, and by configuring the fluidized bed cooler structure having the fluidized cooling means for the granulated material in the discharge chute, the overflow occurs. It is possible to uniformly and surely cool the granules discharged in step 1 to a temperature (1200 ° C. or lower) at which a liquid phase is not generated. Therefore, it is possible to completely prevent the mutual adhesion of the granules and the adhesion to the wall surface of the chute as in the prior art, and to smoothly supply the granules to the firing furnace. (C) Since a part of the overflow discharge chute is in the vertical direction, mixing of the cooled granules in the fluidized bed cooler structure and the high temperature granules in the granulation furnace is rationally blocked, Fluidized cooling of the granulated material in the fluidized bed cooler structure can be efficiently performed. As a result, the granules are smoothly discharged, and the sensible heat of the cooling medium of the fluidized bed cooler structure can be recovered by the raw material preheating device on the downstream side, and the thermal efficiency is not impaired.
【図１】流動床セメント焼成設備を示す概略図である。FIG. 1 is a schematic diagram showing a fluidized bed cement burning facility.
【図２】要部の断面図である。FIG. 2 is a sectional view of a main part.
【図３】別実施例の要部の断面図である。FIG. 3 is a sectional view of a main part of another embodiment.
【図４】自動制御機構をもつ要部の断面図である。FIG. 4 is a sectional view of a main part having an automatic control mechanism.
【図５】従来のセメントクリンカ焼成装置を示す概略図
である。FIG. 5 is a schematic view showing a conventional cement clinker burning device.
１ サスペンションプレヒータ ２ 投入シュート ３ 造粒炉 ４ 排出シュート ４ａ 冷却シュート部 ４ｂ シュート部 ５ Ｌバルブ（気密排出装置） ６ 焼成炉 １１ オーバーフロー排出孔 １１ａ 鉛直孔部 １１ｂ 水平孔部 １２ 分散板 Ａ 流動層クーラ構造体 DESCRIPTION OF SYMBOLS 1 Suspension preheater 2 Input chute 3 Granulation furnace 4 Discharge chute 4a Cooling chute part 4b Chute part 5 L valve (airtight discharge device) 6 Firing furnace 11 Overflow discharge hole 11a Vertical hole part 11b Horizontal hole part 12 Dispersion plate A Fluidized bed cooler Structure
───────────────────────────────────────────────────── フロントページの続き (72)発明者 石鉢 俊幸 東京都千代田区神田美土代町１番地 住 友セメント株式会社内 (72)発明者 橋本 勲 兵庫県明石市川崎町１番１号 川崎重工 業株式会社 明石工場内 (72)発明者 金森 省三 兵庫県神戸市中央区東川崎町３丁目１番 １号 川崎重工業株式会社 神戸工場内 (72)発明者 熊谷 親徳 兵庫県明石市川崎町１番１号 川崎重工 業株式会社 明石工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiyuki Ishibachi 1 Kanda Mitoshiro-cho, Chiyoda-ku, Tokyo Sumitomo Cement Co., Ltd. (72) Inventor Isao Hashimoto 1-1 Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries Co., Ltd., Akashi Plant (72) Inventor Shozo Kanamori 3-1-1, Higashikawasaki-cho, Chuo-ku, Kobe-shi, Hyogo Prefecture Kawasaki Heavy Industries, Ltd. Inside Kobe Plant (72) Inventor, Chisunori Kumagai 1 Kawasaki-cho, Akashi-shi, Hyogo Prefecture No. 1 Kawasaki Heavy Industries, Ltd. Akashi Factory
Claims (1)
段により予熱されたセメント原料粉を造粒炉に投入造粒
し、この造粒物を排出シュートを介して焼成炉に投入焼
成するようにしたセメントクリンカの焼成装置におい
て、前記造粒炉に造粒物のオーバーフロー排出孔を設け
るとともに、このオーバーフロー排出孔に接続せる排出
シュートに、オーバーフロー造粒物の流動化冷却手段を
もつ流動層クーラ構造体を構成したことを特徴とするセ
メントクリンカの焼成装置。1. A cement clinker in which a cement raw material powder preheated by a preheating means such as a suspension preheater is charged into a granulating furnace and granulated, and the granulated material is charged into a calcining furnace through a discharge chute and calcined. In the firing apparatus, the granulation furnace was provided with an overflow discharge hole for the granulated product, and a discharge chute connected to the overflow discharge hole was provided with a fluidized bed cooler structure having fluidized cooling means for the overflow granulated product. A cement clinker firing device characterized by the above.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6313893A JP2506033B2 (en) | 1993-02-26 | 1993-02-26 | Cement clinker firing equipment |
| TW083101189A TW332857B (en) | 1993-02-26 | 1994-02-15 | Cement clinker |
| KR94003045A KR970001240B1 (en) | 1993-02-26 | 1994-02-21 | Method and apparatus for sintering cement clinker |
| EP94102907A EP0622596B1 (en) | 1993-02-26 | 1994-02-25 | Method and apparatus for sintering cement clinker |
| DK94102907.6T DK0622596T3 (en) | 1993-02-26 | 1994-02-25 | Method and apparatus for sintering cement clinker |
| DE69404208T DE69404208T2 (en) | 1993-02-26 | 1994-02-25 | Method and device for sintering cement clinker |
| US08/202,154 US5536167A (en) | 1993-02-26 | 1994-02-25 | Method and apparatus for sintering cement clinker |
| CN94103282A CN1048233C (en) | 1993-02-26 | 1994-02-26 | Method and apparatus for sintering cement clinker |
| US08/476,256 US5595599A (en) | 1993-02-26 | 1995-06-07 | Method and apparatus for sintering cement clinker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6313893A JP2506033B2 (en) | 1993-02-26 | 1993-02-26 | Cement clinker firing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06256049A JPH06256049A (en) | 1994-09-13 |
| JP2506033B2 true JP2506033B2 (en) | 1996-06-12 |
Family
ID=13220614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6313893A Expired - Fee Related JP2506033B2 (en) | 1993-02-26 | 1993-02-26 | Cement clinker firing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2506033B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472581A (en) * | 2009-09-10 | 2012-05-23 | Khd洪保德韦达克有限公司 | With CO2Method for preparing cement in separation process |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2612532B2 (en) * | 1993-03-31 | 1997-05-21 | 住友大阪セメント株式会社 | Method and apparatus for firing cement clinker |
-
1993
- 1993-02-26 JP JP6313893A patent/JP2506033B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472581A (en) * | 2009-09-10 | 2012-05-23 | Khd洪保德韦达克有限公司 | With CO2Method for preparing cement in separation process |
| CN102472581B (en) * | 2009-09-10 | 2014-08-06 | Khd洪保德韦达克有限公司 | Method for producing cement with separation of CO2 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06256049A (en) | 1994-09-13 |
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