JPS6242205B2 - - Google Patents
Info
- Publication number
- JPS6242205B2 JPS6242205B2 JP12069979A JP12069979A JPS6242205B2 JP S6242205 B2 JPS6242205 B2 JP S6242205B2 JP 12069979 A JP12069979 A JP 12069979A JP 12069979 A JP12069979 A JP 12069979A JP S6242205 B2 JPS6242205 B2 JP S6242205B2
- Authority
- JP
- Japan
- Prior art keywords
- rotary kiln
- cooling air
- ash
- fixed wall
- incineration
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
Landscapes
- Air Supply (AREA)
- Gasification And Melting Of Waste (AREA)
- Incineration Of Waste (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Description
【発明の詳細な説明】
この発明はロータリーキルン式の焼却炉に係
り、特に集塵装置により捕集した重原油灰（以下
EP灰と略称する）等、微粉状の焼却物を焼却処
理するのに好適な焼却装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotary kiln type incinerator, in particular heavy crude oil ash (hereinafter referred to as
This invention relates to an incinerator suitable for incinerating fine powder incineration materials such as EP ash (abbreviated as EP ash).
油焚きボイラ等の各種燃焼装置から排出される
排ガス中から捕集されるEP灰は燃焼装置の大型
化に伴い膨大な量にのぼつており、その処理も各
種提案されているが、EP灰中の保有エネルギー
の有効利用が可能で、かつEP灰容積の減少が図
れる焼却処理が最近特に注目されている。この焼
却処理の一つとしてロータリーキルンを用いる方
法がある。第１図はロータリーキルンを用いて
EP灰を焼却処理する方法を示し、ロータリーキ
ルン端部に設けた固定壁１０を貫通した焼却物投
入シユート４からロータリーキルン本体７内に投
入されたEP灰１２はバーナ５の火炎により焼却
される。炉内の冷却および焼却物燃焼に利用する
空気（以下単に冷却空気と称する）は第２図に示
す如く、キルン本体７と固定壁５の間に環状に形
成されたスリツト１１を通つてキルン本体７の内
部円周方向に対して均一に噴射供給される。この
ため、キルン本体７の下部から噴射された空気に
より、EP灰等の粉体の焼却物は第１図のく炉内
に舞い上り、いわゆるダステイング現象を生じ、
炉内での燃焼が不安定となる。 EP ash, which is collected from exhaust gas emitted from various combustion devices such as oil-fired boilers, has increased in enormous amounts as combustion devices have become larger, and various treatment methods have been proposed. Recently, incineration has been attracting particular attention because it allows effective use of the energy contained in EP ash and reduces the volume of EP ash. One method of this incineration process is to use a rotary kiln. Figure 1 shows the process using a rotary kiln.
A method of incinerating EP ash is shown. EP ash 12 is charged into the rotary kiln main body 7 from the incineration material input chute 4 that penetrates the fixed wall 10 provided at the end of the rotary kiln, and is incinerated by the flame of the burner 5. As shown in FIG. 2, the air used for cooling the furnace and combustion of the incinerated materials (hereinafter simply referred to as cooling air) passes through a slit 11 formed in an annular shape between the kiln main body 7 and the fixed wall 5. It is uniformly sprayed and supplied to the inner circumferential direction of 7. For this reason, the air injected from the lower part of the kiln body 7 causes the incinerated powder such as EP ash to fly up into the furnace as shown in Figure 1, causing a so-called dusting phenomenon.
Combustion in the furnace becomes unstable.
この発明の目的は上述した従来技術の欠点をな
くし、EP灰等、粉状体の焼却物でも安定して燃
焼を行なわせることのできるロータリーキルン焼
却炉に関する。 The object of the present invention is to eliminate the drawbacks of the prior art described above and to relate to a rotary kiln incinerator that can stably burn even powdered incineration materials such as EP ash.
要するにこの発明は、キルン本体の全円周方向
に形成される冷却空気噴出用スリツトのうち、約
下半分を仕切板で覆い、焼却物の舞い上りを防止
し、不足分の空気導入量を補うために固定壁上部
に冷空気噴出口を形成したものである。 In short, this invention covers approximately the lower half of the cooling air jetting slits formed in the circumferential direction of the kiln body with a partition plate to prevent incinerated materials from flying up and compensate for the insufficient amount of air introduced. For this purpose, a cold air outlet is formed at the top of the fixed wall.
以下この発明の実施例を図面により説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第３図および第４図において、回転するロータ
リーキルン本体７と、キルン本体７の一端の開口
部を閉鎖するよう配置した固定壁１０の間には環
状のスリツト１１が形成されている。この環状の
スリツト１１に対しては、第４図の如く、その下
半分が仕切板３により覆われており、冷却空気の
流入を防止している。固定壁１０の上部には、冷
却空気噴出口１が形成され、前記仕切板３により
不足する冷却空気導入量を補うよう構成してあ
る。 In FIGS. 3 and 4, an annular slit 11 is formed between a rotating rotary kiln body 7 and a fixed wall 10 arranged to close an opening at one end of the kiln body 7. As shown in FIG. 4, the lower half of this annular slit 11 is covered with a partition plate 3 to prevent cooling air from flowing into it. A cooling air outlet 1 is formed in the upper part of the fixed wall 10, and is configured to compensate for the insufficient amount of cooling air introduced by the partition plate 3.
以上の構成の焼却炉において、焼却物投入シユ
ート４から投入されたEP灰等の焼却物１２はバ
ーナ５の火炎により焼却される。この際冷却空気
は上部スリツト１１ａおよび冷却空気噴出口１か
ら噴出するため、焼却物１２は舞い上ることなく
燃焼する。また、この冷却空気の流れにより、バ
ーナ５の火炎は下向き、つまり焼却物１２側に曲
げられ、焼却物１２を良好に焼却する。 In the incinerator having the above configuration, the incineration material 12 such as EP ash is charged from the incineration material inputting chute 4 and is incinerated by the flame of the burner 5. At this time, since the cooling air is ejected from the upper slit 11a and the cooling air outlet 1, the incinerated material 12 is burned without flying up. Further, due to the flow of this cooling air, the flame of the burner 5 is bent downward, that is, toward the incineration material 12 side, and the incineration material 12 is incinerated well.
この発明によれば、EP灰を始めとする粉状、
微粒状の焼却物の舞い上りを防止でき、炉内にお
ける燃焼を安定化させることができる。 According to this invention, powdered powder including EP ash,
It is possible to prevent particulate incineration materials from flying up, and to stabilize combustion in the furnace.
第１図は従来のロータリーキルン式焼却炉の側
断面部分図、第２図は第１図のＡ−Ａ断面図、第
３図はこの発明に係るロータリーキルン焼却炉の
側断面部分図、第４図は第３図のＢ−Ｂ断面図で
ある。
１……冷却空気噴出口、３……仕切板、７……
ロータリーキルン本体、１０……固定壁、１１…
…環状スリツト、１１ａ……上部スリツト。
FIG. 1 is a partial side cross-sectional view of a conventional rotary kiln incinerator, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, FIG. 3 is a partial side cross-sectional view of a rotary kiln incinerator according to the present invention, and FIG. is a sectional view taken along line B-B in FIG. 3. 1... Cooling air outlet, 3... Partition plate, 7...
Rotary kiln main body, 10...Fixed wall, 11...
...Annular slit, 11a... Upper slit.
Claims (1)
に対して配置した固定壁との間に形成した環状の
スリツトから冷却用空気を炉内に送入するものに
おいて、この環状のスリツトの約下半分を仕切板
で覆い、かつ固定壁上部に冷却用空気噴出口を形
成したことを特徴とするロータリーキルン式焼却
炉。1 In a rotary kiln that feeds cooling air into the furnace through an annular slit formed between a rotating rotary kiln body and a fixed wall placed relative to the main body, approximately the lower half of this annular slit is partitioned. A rotary kiln type incinerator characterized by being covered with a plate and having a cooling air outlet formed in the upper part of the fixed wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12069979A JPS5646920A (en) | 1979-09-21 | 1979-09-21 | Rotary kiln type incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12069979A JPS5646920A (en) | 1979-09-21 | 1979-09-21 | Rotary kiln type incinerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5646920A JPS5646920A (en) | 1981-04-28 |
| JPS6242205B2 true JPS6242205B2 (en) | 1987-09-07 |
Family
ID=14792785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12069979A Granted JPS5646920A (en) | 1979-09-21 | 1979-09-21 | Rotary kiln type incinerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5646920A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2622301B2 (en) * | 1990-06-05 | 1997-06-18 | 株式会社フジタ | Construction method of underwater structure by dredging sludge |
| JPH0798198B2 (en) * | 1992-07-17 | 1995-10-25 | 浦和土建工業株式会社 | Granulated sand produced from stonewashing sludge and its granulation method |
-
1979
- 1979-09-21 JP JP12069979A patent/JPS5646920A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5646920A (en) | 1981-04-28 |
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