JP3261422B2 - Baking equipment for cement clinker - Google Patents
Baking equipment for cement clinkerInfo
- Publication number
- JP3261422B2 JP3261422B2 JP36049192A JP36049192A JP3261422B2 JP 3261422 B2 JP3261422 B2 JP 3261422B2 JP 36049192 A JP36049192 A JP 36049192A JP 36049192 A JP36049192 A JP 36049192A JP 3261422 B2 JP3261422 B2 JP 3261422B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- temperature
- fluidized bed
- cement clinker
- free board
- 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、セメントクリンカ焼成
装置の改善に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an apparatus for firing a cement clinker.
【０００２】[0002]
【従来の技術】少くとも、造粒炉と焼成炉とからなるセ
メントクリンカの焼成装置において、焼成炉のフリーボ
ード部にコーチングが発生するために、コーチング制
御，防止技術が必要となった。この手段の一例として、
焼成炉のフリーボード部に、多室流動層クーラでセメン
トクリンカの冷却に用いた中温空気を導入する手段が提
案されている。（例えば、特開昭６１−２７０２４４号
公報参照）2. Description of the Related Art In a cement clinker sintering apparatus comprising at least a granulating furnace and a sintering furnace, coaching occurs on a free board portion of the sintering furnace. As an example of this means,
Means for introducing medium-temperature air used for cooling a cement clinker by a multi-chamber fluidized bed cooler to a freeboard portion of a firing furnace has been proposed. (See, for example, JP-A-61-270244)
【０００３】[0003]
【発明が解決しようとする課題】前述した先行技術にお
いて、能力、詳しくは、原料投入量が定格負荷時より少
ない時には、クーラでの熱交換した冷却空気温度が低
く、焼成炉のフリーボード部の温度が、コーチングが発
生しやすい１０００〜１２００℃の温度域となり、コー
チングが発生するという課題が残されている。その結
果、通風抵抗の増加、コーチングの脱落などにより長期
連続安定運転に支障をきたすことがある。In the above-mentioned prior art, when the capacity, in particular, the raw material input amount is smaller than the rated load, the temperature of the cooling air exchanged with the cooler is low, and the free board portion of the firing furnace is The temperature is in a temperature range of 1000 to 1200 ° C. in which coaching is likely to occur, and the problem that coaching occurs remains. As a result, long-term continuous stable operation may be hindered due to an increase in ventilation resistance, a drop in coaching, and the like.
【０００４】本発明の目的は、焼成炉、および／また
は、流動層クーラのフリーボード部に設置した加熱手段
により焼成炉フリーボード部の温度をコーチングが発生
しにくい温度域に設定し、長期連続安定運転が可能な装
置を提供することにある。[0004] An object of the present invention is to set the temperature of the freeboard portion of the firing furnace to a temperature range in which coaching is unlikely to occur by a heating means installed on the freeboard portion of the firing furnace and / or the fluidized bed cooler, and to maintain the temperature range for a long time. It is to provide a device capable of stable operation.
【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、この造粒物を焼成炉に供給して焼成したセメン
トクリンカを流動層クーラなどにて冷却し回収するよう
にしたセメントクリンカの焼成装置において、前記焼成
炉、および／または、流動層クーラのフリーボード部に
バーナなどの加熱手段を設置し、焼成炉フリーボード部
の温度をコーチングが発生しにくい温度域に設定するも
のである。According to the constitution of the present invention which solves the problems of the prior art, a cement raw material powder preheated by a preheating means such as a suspension preheater is charged into a granulating furnace, and the granulated material is granulated. A cement clinker baking apparatus in which a cement clinker fed to a baking furnace is cooled and collected by a fluidized bed cooler or the like, wherein the baking furnace and / or a free board part of the fluidized bed cooler has a burner or the like. A heating means is provided to set the temperature of the freeboard portion of the firing furnace to a temperature range in which coaching does not easily occur.
【０００６】[0006]
【作用】焼成炉，流動層クーラの排ガス、あるいは、流
動層クーラの比較的高温の冷却空気を更に昇温すること
により、焼成炉フリーボード部の温度をコーチングが発
生しにくい温度域（例えば１３００℃）に設定する。By increasing the temperature of the exhaust gas from the baking furnace and the fluidized-bed cooler or the relatively high-temperature cooling air in the fluidized-bed cooler, the temperature of the baking furnace freeboard is reduced to a temperature range where coaching is difficult to occur (for example, 1300). ° C).
【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の概略図、図２
は第１実施例の縦断正面図、図３は第２実施例の縦断正
面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a schematic diagram of a fluidized bed cement firing facility, and FIG.
Is a vertical sectional front view of the first embodiment, and FIG. 3 is a vertical sectional front view of the second embodiment.
【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、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。このような焼成設備などにおいて本願発明は、長期
連続安定運転を図るため以下のように改善を加えたもの
である。Referring to FIG. 1, the overall system of the apparatus will be described. Reference numeral 1 denotes a suspension preheater, and the suspension preheater 1 is constituted by cyclones C 1 , C 2 and C 3 . The cement raw material powder charged into the system from the raw material charging chute 2 is preheated through a cyclone C 3 → C 2 → C 1 and then charged into a fluidized bed type granulating furnace 3. The granulated material subjected to flow sizing in the granulation furnace 3 is discharged from a discharge hole and discharged from a discharge chute 4 through an L valve (airtight discharge device).
5, the mixture is put into a fluidized bed sintering furnace 6, baked in the sintering furnace 6, and then collected as a cement clinker through a fluidized bed cooler 7 and a moving bed cooler 8. In the figure, 9 is a pulverized coal fuel supply line, and 10 is a heavy oil burner. The present invention in such a sintering facility or the like is improved as follows in order to achieve long-term continuous stable operation.
【０００９】図２について第１実施例の構成を説明する
と、前記焼成炉６のフリーボード部６ａ、および／また
は、前記流動層クーラ７のフリーボード部７ａの一側に
バーナ１１，１２を配設したものである。１３は焼成炉
６のフリーボード部６ａ上部の温度センサーで、この温
度センサー１３の検知信号が制御装置１４にインプット
され、設定温度値と比較した結果により前記バーナ１
１、および／または、１２をコントロールするよう構成
されている。尚、バーナ１１，１２は複数本設置しても
よいが、通常は１本で足りる。また、前記造粒炉３のフ
リーボード部３ａにもバーナ１５を設置し、このフリー
ボード部３ａの温度をコーチングが発生しにくい温度域
に設定することができる。Referring to FIG. 2, the structure of the first embodiment will be described. Burners 11 and 12 are arranged on one side of the free board section 6a of the baking furnace 6 and / or the free board section 7a of the fluidized bed cooler 7. It was established. Reference numeral 13 denotes a temperature sensor above the free board portion 6a of the firing furnace 6, and a detection signal of the temperature sensor 13 is input to a control device 14 and is compared with a set temperature value.
1 and / or 12 are configured to be controlled. Note that a plurality of burners 11 and 12 may be provided, but usually only one is sufficient. In addition, a burner 15 can also be installed in the freeboard section 3a of the granulation furnace 3 so that the temperature of the freeboard section 3a can be set to a temperature range in which coaching does not easily occur.
【００１０】次に、図３について第２実施例を説明する
と、この実施例は前記焼成炉６の少くともフリーボード
部６ａを上方に至るに従い拡径とし、フリーボード部６
ａへの微細クリンカ粒子の飛び出し量を低減させ、フリ
ーボード部６ａにおけるコーチング抑制，防止効果が更
に向上しうるようにしたものである。尚、このような構
成は前記造粒炉３にも適用させ、コーチングの発生を抑
制，防止することができる。Next, a second embodiment will be described with reference to FIG. 3. In this embodiment, the diameter of at least the free board portion 6a of the baking furnace 6 is increased as it goes upward,
Thus, the amount of the fine clinker particles protruding to a is reduced, and the effect of suppressing and preventing the coaching in the free board portion 6a can be further improved. In addition, such a configuration can be applied to the granulation furnace 3 to suppress and prevent the occurrence of coaching.
【００１１】[0011]
【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。焼成炉のフリーボード部、お
よび／または、流動層クーラのフリーボード部にバーナ
などの加熱手段を設置したので、各々の排ガス、あるい
は、流動層クーラの比較的高温の冷却空気を更に昇温す
ることにより、焼成炉のフリーボード部の温度をコーチ
ングが発生しにくい温度域に設定することができる。従
って、焼成炉フリーボード部におけるコーチングの抑
制，防止を図り、長期連続安定運転が合理的に可能とな
る。According to the configuration of the present invention as described above, the following effects can be obtained. Since a heating means such as a burner is installed in the freeboard portion of the firing furnace and / or the freeboard portion of the fluidized bed cooler, the temperature of each exhaust gas or the relatively high temperature cooling air of the fluidized bed cooler is further increased. This makes it possible to set the temperature of the free board portion of the firing furnace to a temperature range in which coaching does not easily occur. Therefore, the coaching in the firing furnace freeboard section is suppressed and prevented, and a long-term continuous stable operation can be rationally possible.
【図１】流動床セメント焼成設備の概略図である。FIG. 1 is a schematic view of a fluidized-bed cement firing facility.
【図２】第１実施例の縦断正面図である。FIG. 2 is a vertical sectional front view of the first embodiment.
【図３】第２実施例の縦断正面図である。FIG. 3 is a vertical sectional front view of the second embodiment.
Ｃ1 サイクロン Ｃ2 サイクロン Ｃ3 サイクロン １ サスペンションプレヒータ ２ 原料投入シュート ３ 造粒炉 ３ａ フリーボード部 ４ 排出シュート ５ Ｌバルブ ６ 流動層焼成炉 ６ａ フリーボード部 ７ 流動床クーラ ７ａ フリーボード部 １１ バーナ １２ バーナ １３ 温度センサー １４ 制御装置 １５ バーナC 1 cyclone C 2 cyclone C 3 cyclone 1 suspension preheater 2 material input chute 3 granulation furnace 3a free board section 4 discharge chute 5 L valve 6 fluidized bed firing furnace 6a free board section 7 fluidized bed cooler 7a free board section 11 burner 12 Burner 13 Temperature sensor 14 Control device 15 Burner
───────────────────────────────────────────────────── 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 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 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 明石市川崎町１番１号 川崎重工業株式 会社 明石工場内 (56)参考文献 特開 昭63−307211（ＪＰ，Ａ) 特開 平１−148737（ＪＰ，Ａ) 特開 平６−287041（ＪＰ，Ａ) 特開 平２−229745（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C04B 7/00 - 7/60 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshiyuki Ishibachi 1 Sumitomo Cement Co., Ltd., Kanda-Midshiro-cho, Chiyoda-ku, Tokyo (72) Inventor Isao Hashimoto 1-1-1, Kawasaki-cho, Akashi-shi Kawasaki Heavy Industries, Ltd. Inside the Akashi factory (72) Inventor Shozo Kanamori 3-1-1, Higashikawasaki-cho, Chuo-ku, Kobe Kawasaki Heavy Industries, Ltd. Inside the Kobe factory (72) Inventor Chitoku Kumagai 1-1, Kawasaki-cho, Akashi-shi Kawasaki Heavy Industries Co., Ltd. Inside the Akashi Factory (56) References JP-A-63-307211 (JP, A) JP-A-1-148737 (JP, A) JP-A-6-2877041 (JP, A) JP-A-2-229745 (JP, A A) (58) Fields surveyed (Int. Cl. 7 , DB name) C04B 7/ 00-7/60
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、この造粒物を焼成炉に供給して焼成したセメントク
リンカを流動層クーラなどにて冷却し回収するようにし
たセメントクリンカの焼成装置において、前記焼成炉、
および／または、流動層クーラのフリーボード部にバー
ナなどの加熱手段を設置し、焼成炉フリーボード部の温
度をコーチングが発生しにくい温度域に設定することを
特徴とするセメントクリンカの焼成装置。1. A cement raw material powder preheated by a preheating means such as a suspension preheater is charged into a granulating furnace, and the granulated material is supplied to a firing furnace, and the fired cement clinker is subjected to a fluidized bed cooler or the like. In a baking device for a cement clinker that is cooled and recovered, the baking furnace,
And / or a heating device such as a burner is installed in a free board portion of the fluidized bed cooler, and the temperature of the free board portion of the firing furnace is set to a temperature range where coaching is unlikely to occur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36049192A JP3261422B2 (en) | 1992-12-28 | 1992-12-28 | Baking equipment for cement clinker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36049192A JP3261422B2 (en) | 1992-12-28 | 1992-12-28 | Baking equipment for cement clinker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06199553A JPH06199553A (en) | 1994-07-19 |
| JP3261422B2 true JP3261422B2 (en) | 2002-03-04 |
Family
ID=18469631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36049192A Expired - Fee Related JP3261422B2 (en) | 1992-12-28 | 1992-12-28 | Baking equipment for cement clinker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3261422B2 (en) |
-
1992
- 1992-12-28 JP JP36049192A patent/JP3261422B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06199553A (en) | 1994-07-19 |
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