JPS5824721A - Energy saving combustion method - Google Patents
Energy saving combustion methodInfo
- Publication number
- JPS5824721A JPS5824721A JP12350281A JP12350281A JPS5824721A JP S5824721 A JPS5824721 A JP S5824721A JP 12350281 A JP12350281 A JP 12350281A JP 12350281 A JP12350281 A JP 12350281A JP S5824721 A JPS5824721 A JP S5824721A
- Authority
- JP
- Japan
- Prior art keywords
- air
- furnace
- wall
- cooled
- combustion
- 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.)
- Pending
Links
- 238000009841 combustion method Methods 0.000 title claims description 5
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000011449 brick Substances 0.000 abstract description 2
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 abstract 1
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 2
- 239000002956 ash Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls
- F23M5/085—Cooling thereof; Tube walls using air or other gas as the cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、都市塵芥、産業廃棄物等の燃焼炉における
省エネルギー燃焼方法に関スる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an energy-saving combustion method for municipal garbage, industrial waste, etc. in a combustion furnace.
従来、焼却炉の炉壁は、耐火材、断熱材および保温材よ
りなる複合材で構成されており、燃焼用空気はガス式ま
たは蒸気式の空気予熱器で１００〜２５０℃に加熱され
て炉に供給されていた。そのため空気予熱器によるエネ
ルギー消費もかなりな量となった。またガス式予熱器は
飛灰により閉塞しやすいため、頻繁に清掃する必要があ
り、蒸気式のものは管の腐食の問題があり、これら問題
の対策が望まれていた。また定常運転時における炉内温
度は７００〜９５０℃であるが、被焼却物の低位発熱量
が２０００Ｋｃａ／ ／ Ｑを越える場合、炉内面の耐
火物表面温度を１０００℃以下に抑制することが困難で
あり、そのため耐火物が損傷をきたしたり、炉壁にタリ
ンカや溶融灰等が付着したりするおそれがある。したが
ってこのようなトラブルを避けるには、炉壁を冷却する
必要がある。冷却に用いた空気は、炉壁によって加熱せ
られている。Conventionally, the furnace wall of an incinerator is made of a composite material made of refractory material, heat insulating material, and heat insulating material, and the combustion air is heated to 100 to 250 degrees Celsius with a gas or steam type air preheater. was supplied to. Therefore, the energy consumption by the air preheater was also considerable. Additionally, gas type preheaters are easily clogged with fly ash and must be cleaned frequently, while steam type preheaters have the problem of pipe corrosion, and measures to address these problems have been desired. In addition, the temperature inside the furnace during steady operation is 700 to 950℃, but if the lower calorific value of the material to be incinerated exceeds 2000Kca//Q, it is difficult to suppress the surface temperature of the refractory inside the furnace to 1000℃ or less. Therefore, there is a risk that the refractory may be damaged or that tarinka, molten ash, etc. may adhere to the furnace wall. Therefore, to avoid such troubles, it is necessary to cool the furnace walls. The air used for cooling is heated by the furnace walls.
そこでこの空気を燃焼用空気として用いることが考えら
れる。Therefore, it is conceivable to use this air as combustion air.
この発明は、上記のような点からなされたもので、炉壁
を冷却して昇温した炉壁冷却空気を燃焼用空気として利
用することを特徴とする省エネルギー燃焼方法である。The present invention has been made in view of the above points, and is an energy-saving combustion method characterized by utilizing furnace wall cooling air whose temperature has been increased by cooling the furnace wall as combustion air.
以下、この発明を図示の実施例により具体的に説明する
。Hereinafter, the present invention will be specifically explained with reference to illustrated embodiments.
第１図において、炉壁冷却空気の導管（１）は、焼却炉
の貯留ピット（２）の頂部から送風機（３）を介して炉
の空冷構造壁（４）に配されている。空冷構造壁（４）
は、第２図に示すように、炉内側から耐火材（５）と断
熱材（６）と保温材（７）とからなる複合材炉壁（８）
が一部除去されて、除去部の炉内側に空冷材レンガより
なる空冷壁（９）が張設せられたものである。炉外側に
は炉のケーシングααが設けられ、これと空冷壁（９）
との間に空冷室αυが形成されている。空冷室α１）の
上部には導管（１）の先端が配され、また同室Ｏυの下
部にはここから炉の底部に燃焼用空気を送る導管αのが
配されてｐｚる。In FIG. 1, a furnace wall cooling air conduit (1) is arranged from the top of the storage pit (2) of the incinerator through a blower (3) to the air-cooling structural wall (4) of the furnace. Air-cooled structural wall (4)
As shown in Fig. 2, from the inside of the furnace, a composite furnace wall (8) consisting of a refractory material (5), a heat insulating material (6), and a heat insulating material (7) is constructed.
is partially removed, and an air-cooled wall (9) made of air-cooled material bricks is installed on the inside of the furnace in the removed part. A furnace casing αα is provided on the outside of the furnace, and this and an air cooling wall (9)
An air cooling chamber αυ is formed between the two. The tip of the conduit (1) is disposed in the upper part of the air-cooled chamber α1), and the conduit α for sending combustion air from there to the bottom of the furnace is disposed in the lower part of the same room Oυ.
また導管（１）から導管（１ｚには、空冷室０１）を通
らないバイパス管α３）が配されている。こうじで貯留
ピット（２）から空冷室ａ１１に導かれた炉壁冷却空気
は、ここで炉壁を冷却するとともに昇温せられる。この
昇温した炉壁冷却空気をバイパス管０□□□からの空気
と混合して、温度を通常燃焼空気温度である１００〜２
５０℃に調節して、炉底に供給し、燃焼用に用いる。Further, a bypass pipe α3) which does not pass through the air cooling chamber 01 is arranged from the pipe (1) to the pipe (1z). The furnace wall cooling air guided from the storage pit (2) to the air cooling chamber a11 by the koji cools the furnace wall and is heated. This heated furnace wall cooling air is mixed with air from bypass pipe 0□□□ to bring the temperature to 100-2
The temperature is adjusted to 50°C, and it is supplied to the bottom of the furnace and used for combustion.
この発明による燃焼方法は、以上のとおりで、炉壁冷却
に用いた空気を燃焼用に用いるので、エネルギーの有効
利用を果すことができ、その結果、空気予熱器を省略す
ることができる。したがって空気予熱器の使用に伴なう
トラブルを生じる余・地がなく、燃焼を支障なくな、し
得る。The combustion method according to the present invention is as described above, and since the air used for cooling the furnace wall is used for combustion, energy can be used effectively, and as a result, an air preheater can be omitted. Therefore, there is no room for troubles associated with the use of an air preheater, and combustion can be carried out without any problems.
第１図はこの発明の実施例を示す燃焼炉の縦断面図、第
２図は空冷構造壁の断面図である。
（１）・・ｅ導管、（４）・・・空冷構造壁、０２ ｍ
＠・導管。
以 上
特許出願人 日立造船株式会社
第２図FIG. 1 is a longitudinal sectional view of a combustion furnace showing an embodiment of the present invention, and FIG. 2 is a sectional view of an air-cooled structural wall. (1)...e conduit, (4)...air-cooled structure wall, 02 m
@·conduit. Patent applicant: Hitachi Zosen Corporation Figure 2
Claims (1)
て利用することを特徴とする省エネルギー燃焼方法。An energy-saving combustion method characterized by using furnace wall cooling air that has been heated by cooling the furnace wall as combustion air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12350281A JPS5824721A (en) | 1981-08-05 | 1981-08-05 | Energy saving combustion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12350281A JPS5824721A (en) | 1981-08-05 | 1981-08-05 | Energy saving combustion method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5824721A true JPS5824721A (en) | 1983-02-14 |
Family
ID=14862199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12350281A Pending JPS5824721A (en) | 1981-08-05 | 1981-08-05 | Energy saving combustion method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5824721A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5995307A (en) * | 1982-11-25 | 1984-06-01 | Ube Ind Ltd | Coal-fired hot air generator |
| JPS60162119A (en) * | 1984-02-01 | 1985-08-23 | Ishikawajima Harima Heavy Ind Co Ltd | Heat recovery device in heating furnace |
| JPS63113217A (en) * | 1986-10-29 | 1988-05-18 | Nkk Corp | How to prevent white smoke from garbage incinerators |
| JPH02105820U (en) * | 1989-02-13 | 1990-08-22 | ||
| US5798703A (en) * | 1995-06-29 | 1998-08-25 | The Nippon Signal Co., Ltd. | Mat sensor |
| CN103471089A (en) * | 2013-08-28 | 2013-12-25 | 中国科学院过程工程研究所 | Coal-fired decoupling combustion apparatus and combustion method |
-
1981
- 1981-08-05 JP JP12350281A patent/JPS5824721A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5995307A (en) * | 1982-11-25 | 1984-06-01 | Ube Ind Ltd | Coal-fired hot air generator |
| JPS60162119A (en) * | 1984-02-01 | 1985-08-23 | Ishikawajima Harima Heavy Ind Co Ltd | Heat recovery device in heating furnace |
| JPS63113217A (en) * | 1986-10-29 | 1988-05-18 | Nkk Corp | How to prevent white smoke from garbage incinerators |
| JPH02105820U (en) * | 1989-02-13 | 1990-08-22 | ||
| US5798703A (en) * | 1995-06-29 | 1998-08-25 | The Nippon Signal Co., Ltd. | Mat sensor |
| CN103471089A (en) * | 2013-08-28 | 2013-12-25 | 中国科学院过程工程研究所 | Coal-fired decoupling combustion apparatus and combustion method |
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