JPH0822768B2 - Cement baking equipment - Google Patents
Cement baking equipmentInfo
- Publication number
- JPH0822768B2 JPH0822768B2 JP62333158A JP33315887A JPH0822768B2 JP H0822768 B2 JPH0822768 B2 JP H0822768B2 JP 62333158 A JP62333158 A JP 62333158A JP 33315887 A JP33315887 A JP 33315887A JP H0822768 B2 JPH0822768 B2 JP H0822768B2
- Authority
- JP
- Japan
- Prior art keywords
- kiln
- calcination
- cement
- raw material
- cooling device
- 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
- 239000004568 cement Substances 0.000 title claims description 15
- 238000001354 calcination Methods 0.000 claims description 26
- 239000002994 raw material Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 description 6
- 238000010304 firing Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 238000009423 ventilation Methods 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
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/432—Preheating without addition of fuel
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は仮焼されたセメント原料の仮焼後の加熱に適
用されるセメントクリンカの焼成装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cement clinker calcination apparatus applied to heating after calcining of a calcined cement raw material.
従来のセメント焼成装置は第３図に示すようにサスペ
ンションプレヒータ３、流動式仮焼炉２、ロータリーキ
ルン４、冷却装置５の主要機器からなっており、サスペ
ンションプレヒータ３に投入されたセメント原料は、予
熱された後、流動式仮焼炉２に投入され、そこで仮焼反
応を約70〜90％起こし、約830〜850℃で焼成用のキルン
４に投入される。キルン４に入る原料の温度は900℃以
下である。原料はキルン４内で更に1450℃まで加熱され
て、セメントクリンカに焼成され、焼成されたセメント
クリンカは、冷却装置５で冷却され系外へ排出される。As shown in FIG. 3, the conventional cement calcination device is composed of a suspension preheater 3, a flow type calciner 2, a rotary kiln 4, and a cooling device 5. The cement raw material fed into the suspension preheater 3 is preheated. After that, it is put into the fluidized-type calcining furnace 2, where about 70 to 90% of the calcination reaction is caused, and it is put into the kiln 4 for firing at about 830 to 850 ° C. The temperature of the raw material entering the kiln 4 is 900 ° C or lower. The raw material is further heated to 1450 ° C. in the kiln 4 and fired into a cement clinker, and the fired cement clinker is cooled by the cooling device 5 and discharged to the outside of the system.
なお、サスペンションプレヒータ３は図示のようにサ
イクロンC1〜C5で構成され、それぞれには原料移送及び
通気用の配管が施されている。The suspension preheater 3 is composed of cyclones C 1 to C 5 as shown in the drawing, and each is provided with pipes for material transfer and ventilation.
上記従来のセメント焼成装置には次の問題があった。
即ち、仮焼炉において70〜90％程度まで仮焼された900
℃以下の原料は更にキルン内で残りの仮焼反応を起こ
し、1450℃まで加熱され、焼成される。ところが熱交換
効率の悪いキルン内で残りの仮焼を行い、更に加熱焼成
を行うためキルンが大型となって長くなり、燃料を多く
焚かねばならない。従って熱損失は大きく燃費が高くな
り、また設備が大きく建設費も高くなるという問題点が
ある。The above-mentioned conventional cement burning device has the following problems.
That is, 900-70% calcined in a calcination furnace
The raw material having a temperature of ℃ or less further causes the remaining calcination reaction in the kiln, and is heated to 1450 ℃ and calcined. However, since the remaining calcination is performed in a kiln with poor heat exchange efficiency and further heating and firing, the kiln becomes large and long, and a large amount of fuel must be burned. Therefore, there is a problem that the heat loss is large, the fuel consumption is high, the equipment is large, and the construction cost is high.
本発明は上記問題点の解決手段として、サスペンショ
ンプレヒータ、流動式仮焼炉、キルンおよび冷却装置を
備えたセメントの焼成装置において、流動式仮焼炉とキ
ルンとの間に上記冷却装置の排気を取込み可能に介装さ
れ上記流動式仮焼炉で仮焼された仮焼原料を焼成温度近
くまで昇温させる気流式加熱器を具備してなることを特
徴とするセメント焼成装置を提供しようとするものであ
る。As a means for solving the above-mentioned problems, the present invention provides a cement calcination device including a suspension preheater, a fluidized calcination furnace, a kiln, and a cooling device, and exhausts the cooling device between the fluidized calcination furnace and the kiln. An object of the present invention is to provide a cement calcination device characterized by comprising an air flow type heater for raising the temperature of a calcination raw material that is intercalable and calcined in the fluidized calcination furnace to a temperature close to the calcination temperature. It is a thing.
本発明は上記のように構成されるので次の作用を有す
る。即ち、流動式仮焼炉で仮焼きした仮焼原料をキルン
に入れる前に気流式加熱器によって冷却装置の排気を利
用し高温加熱するのでキルンでの燃焼負荷が下がりキル
ンの長さが大幅に短縮できるため、熱損失が減り、燃費
が低くなる。また焼成設備全体が小さくなる。Since the present invention is configured as described above, it has the following effects. That is, before the calcined raw material calcined in the fluidized calciner is put in the kiln, the airflow type heater uses the exhaust gas from the cooling device to heat it to a high temperature, which reduces the combustion load in the kiln and significantly increases the length of the kiln. Because it can be shortened, heat loss is reduced and fuel consumption is reduced. In addition, the entire firing equipment becomes smaller.
本発明の一実施例を第１図、第２図に基づいて説明す
る。なお、第３図と同様構成品は同符号とし、説明を省
略する。第１図においてセメント原料は流動式仮焼炉２
およびキルン４の排ガスによってサスペンションプレヒ
ータ３で予熱された後、流動式仮焼炉２に入って仮焼さ
れる。仮焼された原料はサイクロンC1で捕集されて気流
式加熱器１の下部に投入される。そこで抽気ダクト７を
通って該気流式加熱器１の下部に導かれた高温の冷却装
置排空気によって1000〜1200℃まで加熱される。その後
キルン４に供給されてセメントクリンカに焼成され、冷
却装置５で冷却されて系外へ排出される。また前述した
如く、気流式加熱器１に導入する加熱ガスとしては高温
の冷却装置排空気中で燃料を燃焼し、温度を制御したガ
スを使用することができる。An embodiment of the present invention will be described with reference to FIGS. 1 and 2. The same components as those in FIG. 3 are designated by the same reference numerals, and the description thereof will be omitted. In Figure 1, the cement raw material is a fluidized calciner 2
After being preheated by the suspension preheater 3 by the exhaust gas of the kiln 4, it enters the fluidized calcination furnace 2 and is calcinated. The calcined raw material is collected by the cyclone C 1 and put in the lower part of the airflow heater 1. Then, it is heated to 1000 to 1200 ° C. by the high temperature cooling device exhaust air guided to the lower part of the air flow type heater 1 through the extraction duct 7. After that, it is supplied to the kiln 4 and fired into a cement clinker, cooled by the cooling device 5 and discharged to the outside of the system. Further, as described above, as the heating gas to be introduced into the air flow type heater 1, a gas in which the temperature is controlled by burning the fuel in the high temperature cooling device exhaust air can be used.
第２図は本発明の気流式加熱器１の縦断面図で該気流
式加熱器１の最下部から入ってきた高温ガスによって、
下部側面から入ってきた仮焼原料01が加熱されて上部出
口より排出される。FIG. 2 is a vertical cross-sectional view of the airflow type heater 1 of the present invention, in which the high temperature gas coming from the lowermost part of the airflow type heater 1
The calcination raw material 01 that has entered from the lower side surface is heated and discharged from the upper outlet.
本実施例によれば以上説明したように気流式加熱器１
で仮焼原料01が予め1000〜1200℃に加熱された後キルン
４に入るのでキルン４に投与すべき熱量、時間共に小さ
くてすみ、キルン４は従来のキルンに比して短かくてよ
い。また、燃料費も低減され、建設コストの低減も可能
である。According to the present embodiment, as described above, the air flow type heater 1
Since the calcined raw material 01 is preheated to 1000 to 1200 ° C. and then enters the kiln 4, both the amount of heat and the time to be administered to the kiln 4 can be small, and the kiln 4 may be shorter than the conventional kiln. In addition, the fuel cost can be reduced and the construction cost can be reduced.
本発明は上記のように構成されるので次の効果を有す
る。即ち、高温の冷却装置排気を有効に利用する気流式
加熱器を設置し、キルンに入る仮焼原料を予め高温加熱
するためキルンの負担が減り、 （１） キルンの短縮化、 （２） 燃費の低減、 （３） 建設コストの低減、 が達成される。Since the present invention is configured as described above, it has the following effects. That is, the airflow type heater that effectively uses the exhaust of the high temperature cooling device is installed, and the calcining raw material that enters the kiln is preheated to a high temperature, so the burden on the kiln is reduced, and (1) the kiln is shortened, (2) fuel consumption (3) Reduction of construction cost is achieved.
第１図は本発明の一実施例であるセメントクリンカの焼
成装置を原料の流れに従って示した模式的構成図、第２
図は第１図における気流式加熱器１の模式的拡大縦断面
図、第３図は第１図に対応して示した従来の焼成装置の
図である。 １……気流式加熱器、２……流動式仮焼炉 ３……サスペンションプレヒータ ４……キルン、５……冷却装置 ６……抽気ダクト、７……抽気ダクト C1〜C6……サイクロンFIG. 1 is a schematic configuration diagram showing a cement clinker firing apparatus according to an embodiment of the present invention in accordance with the flow of raw materials, and FIG.
FIG. 1 is a schematic enlarged vertical sectional view of the air flow type heater 1 in FIG. 1, and FIG. 3 is a view of a conventional firing apparatus shown corresponding to FIG. 1 ... Air flow type heater, 2 ... Flow type calcining furnace 3 ... Suspension preheater 4 ... Kiln, 5 ... Cooling device 6 ... Bleed duct, 7 ... Bleed duct C 1 to C 6 Cyclone
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤原 邦久 広島県広島市西区観音新町４丁目６番22号 三菱重工業株式会社広島研究所内 (56)参考文献 特開 昭53−25630（ＪＰ，Ａ) 特開 昭60−137857（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kunihisa Fujiwara 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Mitsubishi Heavy Industries Ltd. Hiroshima Research Laboratory (56) Reference JP-A-53-25630 (JP, A) JP 60-137857 (JP, A)
Claims (1)
炉、キルンおよび冷却装置を備えたセメントの焼成装置
において、流動式仮焼炉とキルンとの間に上記冷却装置
の排気を取込み可能に介装され上記流動式仮焼炉で仮焼
された仮焼原料を焼成温度近くまで昇温させる気流式加
熱器を具備してなることを特徴とするセメント焼成装
置。1. A cement calcination device comprising a suspension preheater, a fluidized calcination furnace, a kiln and a cooling device, wherein the exhaust gas of the cooling device is interposed between the fluidized calcination furnace and the kiln. A cement calcination apparatus comprising an air flow type heater for heating the calcination raw material calcined in the fluidized calcination furnace to a temperature close to the calcination temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62333158A JPH0822768B2 (en) | 1987-12-29 | 1987-12-29 | Cement baking equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62333158A JPH0822768B2 (en) | 1987-12-29 | 1987-12-29 | Cement baking equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01176251A JPH01176251A (en) | 1989-07-12 |
| JPH0822768B2 true JPH0822768B2 (en) | 1996-03-06 |
Family
ID=18262936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62333158A Expired - Fee Related JPH0822768B2 (en) | 1987-12-29 | 1987-12-29 | Cement baking equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0822768B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11278888A (en) * | 1998-03-26 | 1999-10-12 | Taiheiyo Cement Corp | Manufacturing method of cement |
| CN105299625B (en) * | 2015-11-23 | 2017-10-13 | 北京凯盛建材工程有限公司 | A kind of energy-saving and emission-reduction remodeling method of reduction DDF dore furnace nitrogen oxide emissions |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5838374B2 (en) * | 1976-08-21 | 1983-08-23 | 石川島播磨重工業株式会社 | Calcination method and equipment for powder raw materials |
| JPS60137857A (en) * | 1983-12-23 | 1985-07-22 | 株式会社神戸製鋼所 | Multi-step calcination for cement raw material powder |
-
1987
- 1987-12-29 JP JP62333158A patent/JPH0822768B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01176251A (en) | 1989-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4381916A (en) | Method and apparatus for roasting fine grained ores | |
| US3975148A (en) | Apparatus for calcining cement | |
| CN203144295U (en) | Heat accumulating type dividing-wall heating rotary lime kiln | |
| AU2391301A (en) | Method and apparatus for manufacturing cement clinker from particulate cement raw material | |
| US4276020A (en) | Method for heating powder material and apparatus for carrying out said method | |
| GB2047392A (en) | Combustion control system for burning installation with calcining burner and drier | |
| JPH0822768B2 (en) | Cement baking equipment | |
| US4204835A (en) | Apparatus for treating solid particulate material | |
| CN1554609A (en) | Cement clinker calcining cycle pre-calcination process and device | |
| JPS6314649B2 (en) | ||
| JPS5838374B2 (en) | Calcination method and equipment for powder raw materials | |
| JPS5920623B2 (en) | How to use exhaust gas from suspension preheater | |
| SU139975A1 (en) | Combined kiln for burning firewood powder, expanded clay sand, etc. Materials | |
| SU699305A1 (en) | Cement clinker production method | |
| JPS5899150A (en) | Powdery substance calcining device | |
| JPS63162556A (en) | Cement clinker burning facilities | |
| SU909520A1 (en) | Furnace for endothermic calcining of loose materials | |
| SU1020737A1 (en) | Device for roasting raw material | |
| JPS5855217Y2 (en) | Denitrification furnace for cement kiln exhaust gas | |
| JPH0424394Y2 (en) | ||
| SU1735688A1 (en) | Cement clinker calcination plant | |
| JPS5815050A (en) | Apparatus for baking cement powder raw material or like | |
| SU773024A1 (en) | Method of construction material annealing | |
| JPS6039075Y2 (en) | Suspension preheater heat recovery device | |
| JPH0541579B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |