JPS6116891B2 - - Google Patents
Info
- Publication number
- JPS6116891B2 JPS6116891B2 JP16819481A JP16819481A JPS6116891B2 JP S6116891 B2 JPS6116891 B2 JP S6116891B2 JP 16819481 A JP16819481 A JP 16819481A JP 16819481 A JP16819481 A JP 16819481A JP S6116891 B2 JPS6116891 B2 JP S6116891B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- cooling air
- cooling
- air passage
- combustion chamber
- 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
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)
- Furnace Details (AREA)
Description
【発明の詳細な説明】
本発明は、炉の空冷装置の改良に関する。石炭
のスラグタツプ炉の１つにサイクロン・フアーネ
スがある。これは微粉炭を円筒形燃焼室に吹込
み、燃焼用空気をこの円筒形燃焼室の内面を擦過
するように吹込んで、内面にはりついた石炭を高
速空気によつて高負荷燃焼させることにより高温
の為石炭が溶け、溶融状態で取り出すことができ
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in air cooling equipment for furnaces. One type of coal slug tap furnace is the cyclone furnace. This is achieved by blowing pulverized coal into a cylindrical combustion chamber, blowing combustion air so as to scrape the inner surface of the cylindrical combustion chamber, and burning the coal stuck to the inner surface under high load using the high-speed air. Because of this, the coal melts and can be extracted in a molten state.
このサイクロン・フアーネスを外部から冷却す
る手段として空冷装置があり、それには種々の長
所があるが、最大の短所は冷却空気を燃焼用空気
として利用する場合、燃焼室に応じてこの冷却空
気量が変わることである。即ち、燃焼量に比例し
て冷却空気量が変わると、空気通路が同一であれ
ば、冷却量或いはサイクロン・フアーネスの冷却
によつて加熱される空気の温度が所定の値になら
ないことが起こる。この為、冷却空気量が燃焼量
に比例して変わつても、サイクロン・フアーネス
の冷却量或いは空気温度が所望の値になることが
求められている。 There is an air cooling system as a means of cooling this cyclone furnace from the outside, and it has various advantages, but the biggest disadvantage is that when cooling air is used as combustion air, the amount of cooling air depends on the combustion chamber. It's about change. That is, if the amount of cooling air changes in proportion to the amount of combustion, the amount of cooling or the temperature of the air heated by the cooling of the cyclone furnace may not reach a predetermined value even if the air passage is the same. For this reason, even if the amount of cooling air changes in proportion to the amount of combustion, it is required that the amount of cooling or air temperature of the cyclone furnace remains at a desired value.
以上のことはサイクロン・フアーネスに限ら
ず、燃焼，ガス化，溶融，加熱などの高温体を内
部に有し、外部から空気により冷却する炉につい
ても同様である。 The above applies not only to cyclone furnaces, but also to furnaces that have high-temperature bodies for combustion, gasification, melting, heating, etc. inside and are cooled by air from the outside.
本発明は前述の要望を満たすべくなされたもの
であり、炉の空冷装置の冷却用空気通路を通る冷
却用空気に適当な旋回力を与えて、炉の冷却量或
いは冷却用空気の加熱温度を所望の値に制御する
ようにした炉の空気装置を提供せんとするもので
ある。 The present invention has been made to meet the above-mentioned needs, and provides an appropriate swirling force to the cooling air passing through the cooling air passage of the air cooling device of the furnace, thereby increasing the amount of cooling of the furnace or the heating temperature of the cooling air. It is an object of the present invention to provide a furnace air system which is controlled to a desired value.
以下本発明による炉の冷却装置を、サイクロ
ン・フアーネスに適用した一実施例を図によつて
説明すると、１はサイクロン・フアーネスの円筒
形燃焼室で、一端の開口部２には図示せぬが微粉
炭を燃焼室１内に吹込むバーナが設けられ、他端
の開口部３は燃焼ガス出口となつている。燃焼室
１の接線方向には燃焼用空気を該燃焼室１内へ旋
回するように吹込む開口部４が設けられている。 An embodiment in which the furnace cooling device according to the present invention is applied to a cyclone furnace will be described below with reference to the drawings. Reference numeral 1 denotes a cylindrical combustion chamber of the cyclone furnace, and an opening 2 at one end has an opening (not shown). A burner is provided to blow pulverized coal into a combustion chamber 1, and an opening 3 at the other end serves as a combustion gas outlet. An opening 4 is provided in the tangential direction of the combustion chamber 1 for blowing combustion air into the combustion chamber 1 in a swirling manner.
前記円筒形燃焼室１は空冷であるから燃焼室１
の内面には耐火材５が内張され、外周には空冷装
置６が設けられ、該空冷装置６は筒状の冷却用空
気通路７，７′が折返しに２重に設けられて成る
もので、冷却用空気通路７，７′の導入口には角
度調整可能な旋回翼８，８′が設けられている。 Since the cylindrical combustion chamber 1 is air-cooled, the combustion chamber 1
The inner surface is lined with a refractory material 5, and the outer periphery is provided with an air cooling device 6. The air cooling device 6 is made up of double cylindrical cooling air passages 7, 7' that are folded back. , angle-adjustable swirl vanes 8, 8' are provided at the inlets of the cooling air passages 7, 7'.
このように空冷装置６を備えたサイクロン・フ
アーネスの円筒形燃焼室１に於いて、微粉炭が一
端の開口部２の図示せぬバーナから燃焼室１内に
吹込まれ、燃焼用空気は開口部２或いは燃焼室１
の接線方向に設けられた開口部４から燃焼室１内
に旋回するように吹込まれる。燃焼室１内での微
粉炭の燃焼による燃焼ガスは燃焼室１の他端の開
口部３から出て例えば図示省略のボイラ燃焼室に
入つてこれを加熱する。微粉炭の灰は溶融し、液
状で図示省略の開口部から流出する。 In the cylindrical combustion chamber 1 of the cyclone furnace equipped with the air cooling device 6 as described above, pulverized coal is blown into the combustion chamber 1 from a burner (not shown) in the opening 2 at one end, and combustion air is supplied through the opening. 2 or combustion chamber 1
It is blown into the combustion chamber 1 in a swirling manner through an opening 4 provided in the tangential direction of the combustion chamber 1. Combustion gas resulting from the combustion of pulverized coal within the combustion chamber 1 exits from an opening 3 at the other end of the combustion chamber 1 and enters, for example, a boiler combustion chamber (not shown) to heat it. The pulverized coal ash is melted and flows out in liquid form from an opening (not shown).
一方冷却用空気は空冷装置６の冷却用空気通路
７の一端から旋回翼８の回転により該通路７内に
入つて流れ、耐火材５ひいては円筒形燃焼室１が
冷却される。そして温度上昇した冷却用空気は冷
却用空気通路７′の他端から旋回翼８′の回転によ
り冷却用空気通路７′内に入つて流れ、冷却用通
路７内を流れる冷却用空気が耐火材５により加熱
されるのが抑制される。 On the other hand, the cooling air flows from one end of the cooling air passage 7 of the air cooling device 6 into the passage 7 by the rotation of the swirler blades 8, and the refractory material 5 and thus the cylindrical combustion chamber 1 are cooled. Then, the cooling air whose temperature has increased flows from the other end of the cooling air passage 7' into the cooling air passage 7' by the rotation of the swirler blade 8', and the cooling air flowing inside the cooling passage 7 is made of fireproof material. 5 suppresses heating.
即ち、熱力学上、熱交換量は（この場合熱媒体
の流量及び熱交換媒体間の温度差は一定）熱媒体
の流速に比例する。角度調整可能な旋回翼８，
８′によつて、冷却用空気流路７，７′を流れる空
気の流速がそれぞれ別々に調整される。 That is, thermodynamically, the amount of heat exchange is proportional to the flow rate of the heat medium (in this case, the flow rate of the heat medium and the temperature difference between the heat exchange mediums are constant). Angle-adjustable swirl wing 8,
8', the flow velocity of the air flowing through the cooling air passages 7, 7' is adjusted separately.
先ず、冷却用空気通路７より冷空気が供給され
た場合は、高温の耐火材５によつて空気は昇温さ
れ、その代りに耐火材５は冷却される。この空気
の昇温は、角度調整可能な旋回翼８の翼角度の調
整により空気流速を調整して行ない、炉壁（耐火
材５）の温度を所定温度に調節する。 First, when cold air is supplied from the cooling air passage 7, the temperature of the air is raised by the high-temperature refractory material 5, and the refractory material 5 is cooled instead. The temperature of the air is raised by adjusting the air flow velocity by adjusting the angle of the swing blades 8 whose angle is adjustable, and the temperature of the furnace wall (refractory material 5) is adjusted to a predetermined temperature.
このように任意の温度に昇温した空気は、冷却
用空気通路７′に流入する。冷却用空気通路７′の
外側は外気温度である。従つて、冷却用空気通路
７′を流れる空気は降温される。この降温の程度
は、角度調整可能な旋回翼８′の翼角度の調整に
より空気流速を調整して行なう。一方において、
冷却用空気通路７内を流れる低温の空気と、冷却
用空気通路７′内を流れる低温の空気（空気と空
気）との間でも熱交換される。 The air heated to a desired temperature in this manner flows into the cooling air passage 7'. The outside of the cooling air passage 7' is at outside temperature. Therefore, the temperature of the air flowing through the cooling air passage 7' is lowered. The degree of temperature reduction is determined by adjusting the air flow velocity by adjusting the blade angle of the swing blade 8' whose angle is adjustable. On the one hand,
Heat is also exchanged between the low temperature air flowing through the cooling air passage 7 and the low temperature air (air to air) flowing within the cooling air passage 7'.
このように、炉壁（耐火材５）と空気、空気と
空気及び空気と外壁の三つの熱交換が同時に行な
われ、これら三つの熱交換量は、角度調整可能な
旋回翼８，８′の翼角度により調整される。かく
して炉壁（耐火材５）の温度と空気出口温度が所
望の温度に調節される。 In this way, three types of heat exchange are performed simultaneously between the furnace wall (refractory material 5) and the air, between the air and the air, and between the air and the outer wall. Adjusted by blade angle. In this way, the temperature of the furnace wall (refractory material 5) and the air outlet temperature are adjusted to desired temperatures.
上記の説明は、冷却用空気通路７の一端より空
気を供給した場合について行なつたが、冷却用空
気通路７′の一端より空気を供給した場合も同様
である。 Although the above description has been made regarding the case where air is supplied from one end of the cooling air passage 7, the same applies to the case where air is supplied from one end of the cooling air passage 7'.
即ち、冷却用空気通路７′より空気を供給した
場合でも、炉壁（耐火材５）と空気，空気と空気
及び空気と外壁の三つの熱交換が同時に行なわ
れ、これら三つの熱交換量は、角度調整可能な旋
回翼の翼角度により調整され、炉壁と空気出口温
度とが所望の温度に調節される。 In other words, even when air is supplied from the cooling air passage 7', three types of heat exchange occur simultaneously: between the furnace wall (refractory material 5) and the air, between the air and the air, and between the air and the outer wall. The temperature of the furnace wall and the air outlet are adjusted to a desired temperature by adjusting the blade angle of the angle-adjustable swirler.
以上詳述した通り、本発明による炉の空冷装置
によれば、円筒形燃焼室の外周に冷却用空気通路
を同心状に設け、更にこの通路の外側に別の冷却
用空気通路を設け、この二つの通路を一方端で連
通し、それぞれの通路の空気入口部に角度調整可
能な旋回翼を設け、それぞれの通路内を流れる空
気速を別々に調整可能なようにしたので、炉壁と
空気，空気と空気及び空気と外壁の三つの熱交換
を同時に行なわせ、かつこの熱交換量は旋回翼の
翼角度の調節により行ない、炉壁の温度と空気出
口温度を同時に満足させた炉の冷却装置を提供し
得るので、その産業上果す効果は多大なものがあ
る。 As detailed above, according to the air cooling device for a furnace according to the present invention, a cooling air passage is provided concentrically around the outer periphery of a cylindrical combustion chamber, and another cooling air passage is provided outside this passage. The two passages are connected at one end, and an angle-adjustable swirl vane is provided at the air inlet of each passage, making it possible to adjust the speed of the air flowing through each passage separately. , the three types of heat exchange between air and air and between air and the outer wall are carried out simultaneously, and the amount of heat exchange is controlled by adjusting the blade angle of the swirling blades, thereby achieving furnace cooling that satisfies the temperature of the furnace wall and the air outlet temperature at the same time. Since the device can be provided, the industrial effects thereof are great.
図は本発明による炉の空冷装置の一例を示す概
略図である。
１……円筒形燃焼室、２，３，４……開口部、
５……耐火材、６……空冷装置、７，７′……冷
却用空気通路、８，８′……旋回翼。
The figure is a schematic diagram showing an example of an air cooling device for a furnace according to the present invention. 1... Cylindrical combustion chamber, 2, 3, 4... Opening,
5... Refractory material, 6... Air cooling device, 7, 7'... Cooling air passage, 8, 8'... Swivel blade.
Claims (1)
通路７を設け、該冷却用空気通路７の外側に更に
同心円状に冷却用空気通路７′を設け、冷却用空
気通路７又は７′の一端部より冷却用空気を供給
して他端より折り返して冷却用空気通路７又は
７′に導き、冷却用空気通路７又は７′の一方端よ
り流出するようになした冷却用空気流路を形成
し、前記冷却用空気通路７又は７′の空気流入部
に冷却用空気に旋回流を与える角度調整可能な旋
回翼を設けて成る炉の空冷装置。1. A cooling air passage 7 is provided concentrically around the outer periphery of the cylindrical combustion chamber, and a cooling air passage 7' is further provided concentrically outside the cooling air passage 7, and the cooling air passage 7 or 7' is A cooling air flow path is provided in which cooling air is supplied from one end, is folded back from the other end and guided to the cooling air passage 7 or 7', and flows out from one end of the cooling air passage 7 or 7'. An air cooling device for a furnace, which is provided with an angle-adjustable swirl vane for giving a swirling flow to the cooling air at the air inlet portion of the cooling air passage 7 or 7'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16819481A JPS5869319A (en) | 1981-10-21 | 1981-10-21 | Air-cooling device of furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16819481A JPS5869319A (en) | 1981-10-21 | 1981-10-21 | Air-cooling device of furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5869319A JPS5869319A (en) | 1983-04-25 |
| JPS6116891B2 true JPS6116891B2 (en) | 1986-05-02 |
Family
ID=15863524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16819481A Granted JPS5869319A (en) | 1981-10-21 | 1981-10-21 | Air-cooling device of furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5869319A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01107888U (en) * | 1988-01-12 | 1989-07-20 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59175824U (en) * | 1983-05-09 | 1984-11-24 | 日本フア−ネス工業株式会社 | Slag tap furnace |
| CN102322685B (en) * | 2011-08-03 | 2013-06-05 | 黄石市建材节能设备总厂 | Efficient oxygen control furnace |
| CN110793042A (en) * | 2019-10-14 | 2020-02-14 | 北京航化节能环保技术有限公司 | Dangerous waste incinerator easy to melt salt |
-
1981
- 1981-10-21 JP JP16819481A patent/JPS5869319A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01107888U (en) * | 1988-01-12 | 1989-07-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5869319A (en) | 1983-04-25 |
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