JPH01176251A - Calcination apparatus for cement - Google Patents
Calcination apparatus for cementInfo
- Publication number
- JPH01176251A JPH01176251A JP33315887A JP33315887A JPH01176251A JP H01176251 A JPH01176251 A JP H01176251A JP 33315887 A JP33315887 A JP 33315887A JP 33315887 A JP33315887 A JP 33315887A JP H01176251 A JPH01176251 A JP H01176251A
- Authority
- JP
- Japan
- Prior art keywords
- kiln
- calcined
- cement
- exhaust gas
- raw material
- 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
- 238000001354 calcination Methods 0.000 title claims abstract description 18
- 239000004568 cement Substances 0.000 title claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000000725 suspension Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 11
- 238000010304 firing Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 238000004904 shortening Methods 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)
Abstract
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 [Industrial Application Field] The present invention relates to a cement clinker firing apparatus that is applied to heating a calcined cement raw material after calcining.
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, a conventional cement firing device consists of the main equipment of a suspension preheater 3, a fluidized calciner 2, a rotary kiln 4, and a cooling device 5. After that, it is put into a fluidized calcination furnace 2, where about 70 to 90% of the calcination reaction occurs, and then it is put into a kiln 4 for firing at about 830 to 850°C. The temperature of the raw material entering kiln 4 is below 900°C. The raw material is further 1450 in kiln 4.
℃ and fired into cement clinker. The fired cement clinker is cooled by a cooling device 5 and discharged out 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０１〜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。As shown in the figure, the suspension preheater 3 is composed of cyclones 01 to C5, each of which is provided with piping for raw 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９
００℃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 conventional cement firing apparatus described above had the following problems. In other words, 9 that has been calcined to about 70 to 90% in a calcining furnace.
The raw material at 00°C or lower undergoes the remaining calcination reaction in the kiln, is heated to 1450°C, and is fired. However, the remaining calcination is performed in a kiln with poor heat exchange efficiency, and then heating and firing are performed, which means that the kiln becomes large and long, and a large amount of fuel must be burned. Therefore, there are problems in that heat loss is large, fuel consumption is high, and the equipment is large and construction costs are high.
本発明は上記問題点の解決手段として、サスベンジ１ン
ブレヒータ、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加熱する気流
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。The present invention provides a means for solving the above-mentioned problems in a cement sintering apparatus equipped with a suspension heater, a fluidized calciner, a kiln, and a cooling device. It is an object of the present invention to provide a cement firing apparatus characterized in that it is equipped with an airflow type heater which is inserted so that the cement can be taken in and heats the calcined raw material calcined in the fluidized type calcining furnace.
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なキル／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. In other words, the calcined raw material calcined in the fluidized calcining furnace is heated to a high temperature using the exhaust air from the cooling device in the airflow type heater before being put into the kil, which reduces the combustion load on the kiln and significantly increases the length of the kiln. This reduces heat loss and reduces fuel consumption. Additionally, 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ベンジ曹ンプレヒー
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１０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 based on FIGS. 1 and 2. Components similar to those in FIG. 3 are given the same reference numerals, and their explanations will be omitted. In FIG. 1, the cement raw material is preheated in a fluidized calcination furnace 2 and a suction carbon preheater 3 using exhaust gas from a kiln 4, and then enters the fluidized calcination furnace 2 and is calcined. The calcined raw material is collected by the cyclone C1 and introduced into the lower part of the airflow heater 10. There, it is heated to 1000-1200° C. by high-temperature cooling device exhaust air guided to the lower part of the airflow heater 1 through the air bleed duct 7. Thereafter, it is supplied to a kiln 4 and burned into cement clinker, cooled by a cooling device 5, and discharged outside the system. Further, as described above, the heating gas introduced into the airflow heater 1 can be a gas whose temperature is controlled by burning fuel in the high-temperature exhaust air of the cooling device.
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
部側面から入りてきた仮焼原料０１が加熱されて上部出
口より排出される。FIG. 2 is a longitudinal cross-sectional view of the airflow heater 1 of the present invention, and the calcined raw material 01 that enters from the lower side is heated by the high temperature gas that enters from the bottom of the airflow heater 1 and exits from the upper part. more excreted.
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 this embodiment, as explained above, the calcined raw material 01 is preheated to 1000 to 1200°C by the airflow heater 1 and then enters the kiln 4, so the amount of heat to be administered to the kiln 4 is
It takes less time and the kiln 4 can be shorter than conventional kilns. Furthermore, fuel costs are reduced, and construction costs can also 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、１１） 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. In other words, by installing an airflow heater that makes effective use of high-temperature cooling device exhaust air and preheating the calcined raw materials entering the kiln at high temperatures, the burden on the kiln is reduced, 11) shortening the length of the kiln, and (2) reducing fuel consumption. (3) Reduction in construction costs.
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
囚である。
１・・・気流式加熱器 ２・・・流動式仮焼炉３・・
・サスベンジ１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０１〜Ｃ６・・・
サイクロンFigure 1 is a schematic configuration diagram showing a cement clinker firing apparatus according to the flow of raw materials, which is an embodiment of the present invention.
The figure is a schematic enlarged vertical cross-sectional view of the airflow heater 1 shown in FIG. 1, and FIG. 3 is a diagram of a conventional firing apparatus shown corresponding to FIG. 1. 1... Air flow heater 2... Fluid calcination furnace 3...
・Suspension 1 Preheater 4...Kiln 5...Cooling device 6...Bleed air duct, 7...Bleed air duct 01 to C6...
Cyclone
Claims (1)
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
料を加熱す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。In a cement sintering device equipped with a suspension preheater, a fluidized calcination furnace, a kiln, and a cooling device, the fluidized calcination device is interposed between the fluidized calcination furnace and the kiln so as to take in the exhaust gas from the cooling device. A cement firing device characterized by being equipped with an airflow heater for heating calcined raw materials calcined in a furnace.
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 true JPH01176251A (en) | 1989-07-12 |
| JPH0822768B2 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11278888A (en) * | 1998-03-26 | 1999-10-12 | Taiheiyo Cement Corp | Manufacturing method of cement |
| CN105299625A (en) * | 2015-11-23 | 2016-02-03 | 北京凯盛建材工程有限公司 | Energy conservation and emission reduction modification method for reducing emission load of nitric oxide of DDF decomposing furnace |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5325630A (en) * | 1976-08-21 | 1978-03-09 | Ishikawajima Harima Heavy Ind | Method of baking powdery raw materials and apparatus for carrying out thereof |
| 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
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5325630A (en) * | 1976-08-21 | 1978-03-09 | Ishikawajima Harima Heavy Ind | Method of baking powdery raw materials and apparatus for carrying out thereof |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11278888A (en) * | 1998-03-26 | 1999-10-12 | Taiheiyo Cement Corp | Manufacturing method of cement |
| CN105299625A (en) * | 2015-11-23 | 2016-02-03 | 北京凯盛建材工程有限公司 | Energy conservation and emission reduction modification method for reducing emission load of nitric oxide of DDF decomposing furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0822768B2 (en) | 1996-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4381916A (en) | Method and apparatus for roasting fine grained ores | |
| US4289483A (en) | Apparatus for the mutli-step calcination of cement-clinker | |
| JP6180132B2 (en) | Quick lime calcining system with pre-calcining furnace and method using the same | |
| GEP20032952B (en) | Method and Apparatus for Producing Cement Clinker | |
| US4298393A (en) | Method and system for burning fine-grained material, particularly for the manufacture of cement clinkers | |
| WO2012126387A1 (en) | Process and apparatus for calcining cement clinker with pre-heating and pre-decomposition at high solid-to-gas ratio | |
| AU2391301A (en) | Method and apparatus for manufacturing cement clinker from particulate cement raw material | |
| US4425092A (en) | System for burning fine-grained material, particularly for the manufacture of cement clinkers | |
| JPS5988347A (en) | Process and device for heat treating preliminary heated and well calcined fine grain material | |
| US4392822A (en) | System for burning fine-grained material, particularly for the manufacture of cement clinkers | |
| JP2004231424A (en) | Indirect heating type lime kiln | |
| JPH01176251A (en) | Calcination apparatus for cement | |
| US4204835A (en) | Apparatus for treating solid particulate material | |
| CN1554609A (en) | Cement clinker calcining cycle pre-calcination process and device | |
| US4416697A (en) | Method for preheating cement clinker raw materials | |
| JPS5838374B2 (en) | Calcination method and equipment for powder raw materials | |
| CN114644472A (en) | Cement material processing device and cement material processing method | |
| US4416696A (en) | Method for heat treating cement clinker raw materials | |
| CN114646220B (en) | Cement material processing device and cement material processing method | |
| JPS5945624B2 (en) | Cement raw material firing method and device | |
| JPS5920623B2 (en) | How to use exhaust gas from suspension preheater | |
| JPH0424394Y2 (en) | ||
| JPS63162556A (en) | Cement clinker burning facilities | |
| WO2025035546A1 (en) | Efficient clay suspension calcining system capable of controlling color of product | |
| JPH0541579B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |