JPH0910731A - Production of fine spherical molten granular material from sludge incineration ash - Google Patents
Production of fine spherical molten granular material from sludge incineration ashInfo
- Publication number
- JPH0910731A JPH0910731A JP7186436A JP18643695A JPH0910731A JP H0910731 A JPH0910731 A JP H0910731A JP 7186436 A JP7186436 A JP 7186436A JP 18643695 A JP18643695 A JP 18643695A JP H0910731 A JPH0910731 A JP H0910731A
- Authority
- JP
- Japan
- Prior art keywords
- incineration ash
- burner nozzle
- flame
- granular material
- ash
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、汚泥焼却灰を溶融して
微細な球状溶融粒状物を製造する方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of melting sludge incineration ash to produce fine spherical molten particles.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】下水や
産業排水を処理して生じた汚泥は、一般にこれを焼却
し、その焼却灰を道路やコンクリ−ト等建設用の材料と
して有効利用することが図られている。焼却灰は、それ
自体では有効利用が難しいため、従来は、これをさらに
溶融処理して固形スラグとするか、焼成によりレンガと
して再生するようにしている。BACKGROUND OF THE INVENTION Sludge produced by treating sewage or industrial wastewater is generally incinerated, and the incinerated ash is effectively used as a material for construction of roads, concrete and the like. It is intended. Since it is difficult to effectively use incinerated ash by itself, conventionally, the ash is further melt-processed to form a solid slag, or it is regenerated as a brick by firing.
【０００３】焼却灰の溶融処理の場合、スラグは、その
処理方法により水砕スラグか空冷スラグとして得られる
が、いずれにしても強度的に高くなく、自然砕石に比べ
劣る。また、粒度も大であるため、有効利用を行うとす
ると、微細に粉砕することが必要であり、コスト高にな
る。In the case of melting treatment of incineration ash, slag can be obtained as water granulated slag or air cooled slag depending on the treatment method, but in any case, it is not high in strength and inferior to natural crushed stone. Further, since the particle size is also large, if it is to be effectively used, it is necessary to pulverize it finely, resulting in an increase in cost.
【０００４】本発明は、上記の事情にかんがみ、焼却灰
よりのスラグを低コストで有効利用できるようにするこ
とを目的とするもので、焼却炉より出る焼却灰は、それ
自体平均 40 μm 程度に微細であることから、これをガ
ス中で溶融、固化することができれば、物理的に用途の
広くなる球状の微粒子が得られ、しかも、粉砕という工
程が不要となりコストが安くなることに着目し、その新
規な方法を提供するものである。In view of the above circumstances, the present invention is intended to enable effective use of slag from incineration ash at low cost. The incinerator ash discharged from the incinerator itself has an average of about 40 μm. Since it is extremely fine, if it can be melted and solidified in a gas, spherical fine particles having a wide range of physical applications can be obtained, and further, the process of crushing is unnecessary and the cost will be reduced. , That novel method is provided.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
めの本発明の構成について、実施例に対応する図面を参
照して説明すると、本発明は、筒状に形成された炉体１
の基端部にバ−ナ−ノズル２を設け、バ−ナ−ノズル２
の火炎温度を1.300 〜2.000 ℃に保持した状態で、焼却
灰をバ−ナ−ノズル２の中心から噴出させて火炎11の中
を通すことにより、焼却灰の表面を溶融して球状化さ
せ、後、排ガス中で浮遊させながら冷却することを特徴
とするものである。The structure of the present invention for achieving the above object will be described with reference to the drawings corresponding to the embodiments. The present invention is based on a cylindrical furnace body 1
A burner nozzle 2 is provided at the base end of the burner nozzle 2
While maintaining the flame temperature of 1.300 to 2.000 ° C., the incinerated ash is ejected from the center of the burner nozzle 2 and passed through the flame 11, thereby melting and spheroidizing the surface of the incinerated ash. After that, it is characterized by cooling while floating in the exhaust gas.
【０００６】[0006]
【作用】本発明では、高温で燃焼するバ−ナ−ノズル２
の中心部から焼却灰を噴出させる。それによって、焼却
灰は火炎11の中を通過し、その際、瞬間的に溶融され
る。そして、溶融後の焼却灰はガス中で冷却空気の送入
で冷却され、球状の溶融粒状物となる。In the present invention, the burner nozzle 2 which burns at a high temperature is used.
Incinerate ash from the center of the. As a result, the incineration ash passes through the flame 11 and is instantaneously melted. Then, the incinerated ash after melting is cooled in the gas by feeding cooling air to form spherical molten granules.
【０００７】[0007]
【実施例】以下、本発明の実施例について図面を参照し
て説明する。図１は本発明を実施するために用いる装置
の一例を示す概略説明図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic explanatory view showing an example of an apparatus used for carrying out the present invention.
【０００８】図において、Ａは焼却灰を溶融処理する溶
融炉で、炉体１とバ−ナ−ノズル２とよりなる。炉体１
は、横長の円筒状に形成されており、基端が閉じられ、
開放された先端の少し内方部には、炉体１の先端部内に
冷却空気を送入する送気管３が設けられている。In the figure, A is a melting furnace for melting incineration ash, which comprises a furnace body 1 and a burner nozzle 2. Furnace body 1
Is formed in a horizontally long cylindrical shape, the proximal end is closed,
An air supply pipe 3 for supplying cooling air into the front end of the furnace body 1 is provided slightly inward of the open front end.
【０００９】バ−ナ−ノズル２は、先端部を狭めた外管
５内に、小径の内管６が、その基端より突入して設けら
れており、内管６の先端と外管５の先端とには所要の間
隔を存している。また、外管５の基端部には、ＬＰＧや
重油、微粉炭等の燃料を給送する燃料管７が接続されて
いる。In the burner nozzle 2, an inner pipe 6 having a small diameter is provided in an outer pipe 5 having a narrowed tip portion so as to protrude from the base end thereof. The tip of the inner pipe 6 and the outer pipe 5 are provided. There is a required distance from the tip of the. Further, a fuel pipe 7 for feeding a fuel such as LPG, heavy oil, pulverized coal or the like is connected to a base end portion of the outer pipe 5.
【００１０】上記の内管６の基端には、焼却灰を送入す
る供給管８と、酸素含有気体を送入する給気管９とが接
続されている。そして、バ−ナ−ノズル２は、炉体１の
基端部内に突入して設けられ、炉体１内には相当の長さ
にわたる溶融ガス室４が形成される。また、炉体１の開
放された先端にはサイクロン等の捕集装置Ｂに至る移送
管10が接続されている。A supply pipe 8 for feeding incinerated ash and an air supply pipe 9 for feeding an oxygen-containing gas are connected to the base end of the inner pipe 6 described above. The burner nozzle 2 is provided so as to project into the base end portion of the furnace body 1, and a molten gas chamber 4 having a considerable length is formed in the furnace body 1. A transfer pipe 10 leading to a collecting device B such as a cyclone is connected to the open end of the furnace body 1.
【００１１】上記の装置において、焼却炉より出た焼却
灰は供給管８より送られ、給気管９より送られた酸素含
有気体、例えば酸素を多く含んだ空気と合流、混合して
内管６に送入される。他方、外管５内には燃料が給送さ
れて、内管６より噴出する酸素含有気体と合流して燃焼
され、その火炎11はバ−ナ−ノズル２先端つまりは外管
５の先端より溶融ガス室４内に噴出される。それによ
り、内管６より噴出した焼却灰は、噴出した火炎11によ
って溶融される。In the above apparatus, the incineration ash discharged from the incinerator is sent from the supply pipe 8 and joined with the oxygen-containing gas sent from the air supply pipe 9, for example, air containing a large amount of oxygen, and mixed to mix the inner pipe 6 Sent to. On the other hand, the fuel is fed into the outer tube 5, merges with the oxygen-containing gas ejected from the inner tube 6 and is burned, and the flame 11 is emitted from the tip of the burner nozzle 2 or the tip of the outer tube 5. It is jetted into the molten gas chamber 4. As a result, the incineration ash ejected from the inner pipe 6 is melted by the ejected flame 11.
【００１２】この場合、火炎温度を 1.300〜2.000 ℃に
保持することが重要である。そのためには、酸素含有気
体の酸素含有量は30〜100 ％とするのがよく、燃料とし
てはＬＰＧや重油或は微粉炭を用いるのが適当である。
それら燃料と焼却灰との割合は、焼却灰５Kg／hvに対し
て、ＬＰＧの場合は0.5 〜1.0 Nm3 ／hv、重油の場合で
は１〜２kg／hv、また、微粉炭の場合では、75μm (200
mesh) のものを80％以上含む微粉炭において、0.4 〜0.
8kg ／hgとするのがよい。また、それに対する上記酸素
含有気体の供給量は2.5 〜５Nm3 ／hvとするのが好適で
ある。In this case, it is important to maintain the flame temperature at 1.300 to 2.000 ° C. For that purpose, the oxygen content of the oxygen-containing gas is preferably 30 to 100%, and it is suitable to use LPG, heavy oil or pulverized coal as the fuel.
The ratio of these fuels to incinerated ash is 0.5 to 1.0 Nm 3 / hv in the case of LPG, 1 to 2 kg / hv in the case of heavy oil, and 75 μm in the case of pulverized coal to 5 kg / hv of the incinerated ash. (200
0.4 to 0 for pulverized coal containing 80% or more of (mesh).
It should be 8kg / hg. Further, it is preferable that the supply amount of the oxygen-containing gas is 2.5 to 5 Nm 3 / hv.
【００１３】焼却灰は、バ−ナ−ノズル２の中心から噴
出して火炎11の中を通り、その熱により焼却灰の各微粉
粒子は表面が溶融されて球状化する。火炎を通過した焼
却灰は、送気管３より送入された冷却空気によって冷却
され、球状化した溶融スラグとなり、溶融炉１より出て
捕集装置Ｂに送られる。捕集装置Ｂは、焼却灰の溶融粒
状物が粒度に応じて分級できるように、サイクロンまた
はダストフィルタ−を用いるのがよい。The incinerated ash is ejected from the center of the burner nozzle 2 and passes through the flame 11. The heat of the incinerated ash causes the fine powder particles of the incinerated ash to be melted at the surface thereof to be spherical. The incinerated ash that has passed through the flame is cooled by the cooling air sent from the air supply pipe 3, becomes a spheroidized molten slag, and exits from the melting furnace 1 and is sent to the collector B. The collection device B is preferably a cyclone or a dust filter so that the molten particulate matter of the incineration ash can be classified according to the particle size.
【００１４】[0014]
【発明の効果】以上説明したように、本発明によれば、
焼却灰はバ−ナ−ノズルの火炎の中を通すことによっ
て、微細な球状の溶融粒状物に生成できることになる。
したがって、従来のような焼却灰を溶融処理して得られ
る塊状のスラグに比べて圧縮強度が強く、有効利用用途
の広いスラグが得られる。しかも、従来のような粉砕工
程が不要になるとともに、製造が簡便であるから、コス
トの安い溶融粒状物が提供できることになる。As described above, according to the present invention,
The incineration ash can be formed into fine spherical molten particles by passing through the flame of the burner nozzle.
Therefore, it is possible to obtain a slag having a higher compressive strength and a wider range of effective use than the conventional lump slag obtained by melting incineration ash. In addition, the conventional pulverization step is not required and the production is simple, so that it is possible to provide the molten granular material at low cost.
【図１】本発明の一実施例を示す概略説明図である。FIG. 1 is a schematic explanatory view showing one embodiment of the present invention.
【符号の説明】 Ａ 溶融炉 Ｂ 捕集装置 １ 炉体 ２ バ−ナ−ノズル ３ 送気管 ４ 溶融ガス室 ５ 外管 ６ 内管 ７ 燃料管 ８ 供給管 ９ 給気管 10 移送管 11 火炎[Explanation of symbols] A melting furnace B collecting device 1 furnace body 2 burner nozzle 3 air supply pipe 4 molten gas chamber 5 outer pipe 6 inner pipe 7 fuel pipe 8 supply pipe 9 air supply pipe 10 transfer pipe 11 flame
───────────────────────────────────────────────────── フロントページの続き (72)発明者 地田 靖 東京都中央区日本橋室町３−１−３ 株式 会社クボタ東京本社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasushi Jida 3-1-3 Nihombashi Muromachi, Chuo-ku, Tokyo Kubota Tokyo Head Office
Claims (1)
け、バ−ナ−ノズルの火炎温度を1.300 〜2.000 ℃に保
持した状態で、焼却灰をバ−ナ−ノズルの中心から噴出
させて火炎の中を通すことにより、焼却灰の表面を溶融
して球状化させ、後、排ガス中で浮遊させながら冷却す
ることを特徴とする、汚泥焼却灰より微細な球状溶融粒
状物を製造する方法。A burner nozzle was provided at the base end of the furnace body formed into a tubular shape, and the incineration ash was placed at the center of the burner nozzle while the flame temperature of the burner nozzle was maintained at 1.300 to 2.000 ° C. Spherical molten granules that are finer than sludge incineration ash, characterized in that the surface of the incineration ash is melted and spheroidized by being ejected from the flame and passed through a flame, and then cooled while floating in the exhaust gas. A method of manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18643695A JP3214301B2 (en) | 1995-06-29 | 1995-06-29 | Method for producing fine spherical molten granules from sludge incineration ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18643695A JP3214301B2 (en) | 1995-06-29 | 1995-06-29 | Method for producing fine spherical molten granules from sludge incineration ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0910731A true JPH0910731A (en) | 1997-01-14 |
| JP3214301B2 JP3214301B2 (en) | 2001-10-02 |
Family
ID=16188420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18643695A Expired - Fee Related JP3214301B2 (en) | 1995-06-29 | 1995-06-29 | Method for producing fine spherical molten granules from sludge incineration ash |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3214301B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006247446A (en) * | 2005-03-08 | 2006-09-21 | Nisshin Seifun Group Inc | Method and apparatus for manufacturing fine particles |
| KR100766137B1 (en) * | 2006-04-24 | 2007-10-11 | 한국에너지기술연구원 | Burner for pulverized fuel made from food waste |
| KR101131932B1 (en) * | 2011-06-30 | 2012-04-03 | 서울대학교산학협력단 | Facility and method for manufacturing granular filler using bottom ash of thermal power station |
| CN115069166A (en) * | 2022-06-15 | 2022-09-20 | 中国科学院过程工程研究所 | System device for preparing spherical particles from sludge and operation method and application thereof |
-
1995
- 1995-06-29 JP JP18643695A patent/JP3214301B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006247446A (en) * | 2005-03-08 | 2006-09-21 | Nisshin Seifun Group Inc | Method and apparatus for manufacturing fine particles |
| KR100766137B1 (en) * | 2006-04-24 | 2007-10-11 | 한국에너지기술연구원 | Burner for pulverized fuel made from food waste |
| KR101131932B1 (en) * | 2011-06-30 | 2012-04-03 | 서울대학교산학협력단 | Facility and method for manufacturing granular filler using bottom ash of thermal power station |
| CN115069166A (en) * | 2022-06-15 | 2022-09-20 | 中国科学院过程工程研究所 | System device for preparing spherical particles from sludge and operation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3214301B2 (en) | 2001-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4308806A (en) | Incinerator for burning waste and a method of utilizing same | |
| US4177742A (en) | Incinerator for burning waste and a method of utilizing same | |
| JP2005029836A (en) | Waste disposal method by rotary kiln | |
| JP2001064049A (en) | Combustion process applicable to production of cement | |
| JPH0910731A (en) | Production of fine spherical molten granular material from sludge incineration ash | |
| JPS6235004B2 (en) | ||
| JP2008057892A (en) | Coal combustion device and coal combustion method | |
| KR20030009467A (en) | A method and an apparatus for recovery of metals | |
| JP2007252992A (en) | Inflammable gas from sludge, recovery process of slag, and gasification melting furnace of sludge | |
| JPH10169951A (en) | Spheroidizing treatment method of sewerage sludge incineration ash | |
| JPS6170314A (en) | Whirling stream type fired melting furnace | |
| JPS6053805B2 (en) | Combustible sludge treatment method | |
| JP3659788B2 (en) | Equipment for producing molten spheroids from sludge incineration ash | |
| JPH11173523A (en) | Method and device for treating waste through combustion | |
| JP2004183005A (en) | Method for treating waste wood in blast furnace | |
| JPH10281438A (en) | Method and apparatus for manufacturing fly ash | |
| JPS6370014A (en) | Combustion-melting furnace of cyclone type for sewage sludge | |
| JP3049170B2 (en) | Swirling flow melting furnace | |
| JPH09269113A (en) | Method for treating industrial waste | |
| JP2721424B2 (en) | Waste melting furnace | |
| JP2519523B2 (en) | Method and apparatus for burning end-of-life dust of oil coke | |
| JP2001208325A (en) | Treatment method of dehydration sludge and manufacturing method of spherical powder slag | |
| JP3027330B2 (en) | Waste incineration / melting method | |
| JPH09210336A (en) | Air blow nozzle for melting furnace | |
| RU2068969C1 (en) | Method for afterburning combustible materials in ashes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080727 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090727 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100727 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100727 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110727 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |