JPH0258525B2 - - Google Patents
Info
- Publication number
- JPH0258525B2 JPH0258525B2 JP60201759A JP20175985A JPH0258525B2 JP H0258525 B2 JPH0258525 B2 JP H0258525B2 JP 60201759 A JP60201759 A JP 60201759A JP 20175985 A JP20175985 A JP 20175985A JP H0258525 B2 JPH0258525 B2 JP H0258525B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- center
- discharge port
- fluidized bed
- nozzles
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 description 12
- 239000004576 sand Substances 0.000 description 6
- 238000005273 aeration Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/38—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it
- B01J8/384—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it being subject to a circulatory movement only
- B01J8/386—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it being subject to a circulatory movement only internally, i.e. the particles rotate within the vessel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
- F23C10/12—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated exclusively within the combustion zone
- F23C10/14—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated exclusively within the combustion zone the circulating movement being promoted by inducing differing degrees of fluidisation in different parts of the bed
Description
【発明の詳細な説明】 〔発明の技術分野〕 この発明は流動層焼却炉に関するものである。[Detailed description of the invention] [Technical field of invention] This invention relates to a fluidized bed incinerator.
流動層ごみ焼却炉では、活発な流動状態の実現
と共に不燃物が容易に排出されることが必要であ
る。
In a fluidized bed waste incinerator, it is necessary to realize an active fluid state and to easily discharge incombustible materials.
従来、例えば第２図に示すものがある。これ
は、水平な分散板１の中央部に、不燃物４と流動
砂５の排出口３を設ける一方、上記分散板１に散
気ノズル２を突出させて設け、この散気ノズルの
頂部から水平方向に散気を噴出させて気泡６の上
昇によつて流動砂５を撹拌させるものである。し
かしこの方式では
流動砂５の撹拌は、均一な気泡６の上昇によ
つてのみなされるので活発ではない。 Conventionally, there is one shown in FIG. 2, for example. This is achieved by providing a discharge port 3 for incombustible materials 4 and fluidized sand 5 in the center of a horizontal dispersion plate 1, and at the same time providing an aeration nozzle 2 protruding from the dispersion plate 1, from the top of the aeration nozzle. The fluidized sand 5 is agitated by the rise of air bubbles 6 by blowing out air in the horizontal direction. However, in this method, the fluidized sand 5 is stirred only by the uniform rise of air bubbles 6, so it is not active.
分散板１は水平であり、また流動砂５の撹拌
も不充分であるので、不燃物４の排出口３へ向
つての移動がスムーズでないから、予め小粒度
に破砕したごみを投入する必要があり、破砕機
等の設備動力が大きくなる。 Since the dispersion plate 1 is horizontal and the fluidized sand 5 is not sufficiently stirred, the movement of the incombustible materials 4 toward the discharge port 3 is not smooth, so it is necessary to throw in the waste crushed into small particles in advance. Yes, the power required for equipment such as crushers increases.
散気ノズル２が分散板１から突出しているた
め、不燃物の移動を阻害すると共に、線材等が
からまりやすい。 Since the aeration nozzle 2 protrudes from the dispersion plate 1, it obstructs the movement of incombustible materials and tends to cause wire rods and the like to become tangled.
等の問題がある。There are other problems.
そこで、第３図に示す如く分散板１を排出口３
に向つて下向きに傾斜させたものがある。そして
炉中央に近い部分の散気流量を多くすることによ
り、流動砂５に旋回が起るとしている。これによ
り上記の問題点は解決されるが、この場合も
散気ノズル２は突出しているので、の問題は残
る。 Therefore, as shown in FIG.
There are some that are slanted downwards towards . It is also said that swirling occurs in the fluidized sand 5 by increasing the amount of air diffused in a portion near the center of the furnace. Although this solves the above problem, the problem remains because the diffuser nozzle 2 protrudes in this case as well.
又、第４図に示す如く、分散板１を山型とし、
両側傾斜下端部に排出口３，３を設けると共に、
分散板１の上方に反射板８，８を設け、流動化空
気の量を中央部を少なく両側を多くして旋回流７
を生じさせるようにしたものがある。この場合、
上記、の問題は解決されるが、反射板８，８
という大きな突起が流動部にあるため、その部分
が摩耗しやすく、炉形状が複雑となる問題があ
る。また、この場合も散気ノズルは突出している
ので、の問題は残る。 Moreover, as shown in FIG. 4, the dispersion plate 1 is made into a mountain shape,
In addition to providing discharge ports 3, 3 at the lower end portions of both sides of the slope,
Reflection plates 8, 8 are provided above the dispersion plate 1, and the amount of fluidized air is reduced in the center and increased on both sides to create a swirling flow 7.
There is something designed to cause this. in this case,
Although the above problem is solved, the reflection plates 8, 8
Since there is a large protrusion in the flow section, this part is prone to wear and there is a problem that the shape of the furnace becomes complicated. Further, in this case as well, the problem remains because the diffuser nozzle protrudes.
この発明は上記のような問題点を解消できるよ
うにした流動層焼却炉を提供することを目的とす
るものである。 The object of the present invention is to provide a fluidized bed incinerator that can solve the above-mentioned problems.
この発明の流動層焼却炉は、炉中心部に不燃物
排出口を設け、この排出口に向つて下向きに傾斜
する分散板を設けた流動層焼却炉において、上記
分散板に炉中心に向け略水平方向に散気を吹き出
すノズルを炉中心部から炉周壁に渡つて周方向に
多数設け、且つこれらノズルの開口を炉周壁から
炉中心に向つて順次大きくしてなることを特徴と
するものである。
The fluidized bed incinerator of the present invention is a fluidized bed incinerator that is provided with an incombustible material discharge port at the center of the furnace, and a distribution plate that slopes downward toward the discharge port, the distribution plate being directed approximately toward the center of the furnace. It is characterized by having a large number of nozzles that blow air diffused horizontally in the circumferential direction from the center of the furnace to the peripheral wall of the furnace, and the openings of these nozzles gradually becoming larger from the peripheral wall of the furnace toward the center of the furnace. be.
以下本発明の一実施例を図面により説明する。
炉中心部に不燃物排出口１３が設けられている。
この排出口１３に向つて下向きに傾斜する分散板
１１が設けられている。この分散板１１には、炉
中心に向け略水平方向に散気を吹き出すスリツト
状ノズル１２が、炉中心部から炉周壁１０に渡つ
て周方向に多数設けられている。そしてこれらス
リツト状ノズル１２の開口は、炉周壁１０から炉
中心に向つて順次大きくなつている。
An embodiment of the present invention will be described below with reference to the drawings.
A noncombustible material discharge port 13 is provided in the center of the furnace.
A dispersion plate 11 that slopes downward toward the discharge port 13 is provided. This dispersion plate 11 is provided with a large number of slit-shaped nozzles 12 in a circumferential direction extending from the furnace center to the furnace peripheral wall 10 for blowing out diffused air in a substantially horizontal direction toward the furnace center. The openings of these slit-like nozzles 12 gradually become larger from the furnace peripheral wall 10 toward the furnace center.
而して、本発明では、不燃物排出口１３に向き
下向きに傾斜する分散板１１に、不燃物排出口１
３方向に向く空気吐出ノズル１２を設け、分散板
１１上面に突起物が無いようにした。また不燃物
排出口１３に近づくにつれて空気吐出量を増加さ
せるようにした。これらにより流動砂１５に旋回
１７を伴なう強い撹拌を与え、粒度の大きなごみ
を完全燃焼させると共に、不燃物１４の移動・排
出を容易にすることができる。 Accordingly, in the present invention, the non-combustible material discharge port 1 is provided on the dispersion plate 11 which faces the non-combustible material discharge port 13 and is inclined downward.
Air discharge nozzles 12 facing three directions are provided so that there are no protrusions on the upper surface of the dispersion plate 11. Furthermore, the amount of air discharged is increased as the incombustible material discharge port 13 is approached. As a result, the fluidized sand 15 is given strong agitation accompanied by the swirl 17, allowing large-sized particles to be completely combusted, and the incombustible materials 14 to be easily moved and discharged.
そこで、第４図に示すものと、比較実験を行つ
たところ、反射板８の作用により旋回流７が生ず
るものの、散気ノズルが突出しているため不燃物
の移動・排出は悪く、不燃物が流動層内に滞留し
ていた。これに対し本発明によるものでは、反射
板なしでも旋回流１７が生じ、不燃物１４は突起
の無い傾斜した分散板１１上を、旋回流１７とノ
ズル１２からの吐出空気ジエツトにより迅速に移
動し、極めて良好に排出されることが確められ
た。 Therefore, we conducted a comparative experiment with the one shown in Fig. 4, and found that although a swirling flow 7 was generated due to the action of the reflector plate 8, the movement and discharge of non-combustibles was poor due to the protruding diffuser nozzle, and the non-combustibles were It remained in the fluidized bed. In contrast, in the present invention, the swirling flow 17 is generated even without a reflector, and the incombustible material 14 moves quickly on the inclined dispersion plate 11 without protrusions due to the swirling flow 17 and the air jet discharged from the nozzle 12. , it was confirmed that it was discharged very well.
この発明の流動層焼却炉は上記のようなもので
次の如き効果を奏する。
The fluidized bed incinerator of the present invention as described above has the following effects.
(1) 撹拌効果が大きいため粒度の大きなごみでも
完全燃焼でき、現状では非常に大きい破砕機の
動力を低減することができる。(1) Due to the large stirring effect, even large-sized garbage can be completely combusted, making it possible to reduce the power required for the currently extremely large crusher.
(2) 不燃物の移動・排出が良いため、炉内に不燃
物が畜積されず、常に良好な流動状態、燃焼状
態を実現することができる。(2) Since non-combustible materials can be easily moved and discharged, non-combustible materials do not accumulate in the furnace, and good flow and combustion conditions can always be achieved.
(3) 反射板を必要としないため、炉形状が簡素化
され、製作，保守が容易になる。(3) Since a reflector is not required, the furnace shape is simplified, making manufacturing and maintenance easier.
第１図は、本発明炉の要部の一実施例を使用状
態で示す説明図、第２図、第３図及び第４図はそ
れぞれ異なる従来の流動層焼却炉の説明図であ
る。
１０……炉周壁、１１……分散板、１２……ノ
ズル、１３……不燃物排出口。
FIG. 1 is an explanatory diagram showing an embodiment of the main part of the inventive furnace in a used state, and FIGS. 2, 3, and 4 are explanatory diagrams of different conventional fluidized bed incinerators. 10...Furnace peripheral wall, 11...Dispersion plate, 12...Nozzle, 13...Incombustible material discharge port.
Claims (1)
に向つて下向きに傾斜する分散板を設けた流動層
焼却炉において、上記分散板に炉中心に向けて略
水平方向に散気を吹き出すノズルを炉中心部から
炉周壁に渡つて周方向に多数設け、且つこれらノ
ズルの開口を炉周壁から炉中心に向つて順次大き
くしてなることを特徴とする流動層焼却炉。1. In a fluidized bed incinerator equipped with a non-combustible material discharge port in the center of the furnace and a distribution plate that slopes downward toward the discharge port, diffused air is blown onto the distribution plate in a substantially horizontal direction toward the center of the furnace. A fluidized bed incinerator characterized in that a large number of nozzles are provided in the circumferential direction from the furnace center to the furnace peripheral wall, and the openings of these nozzles are gradually enlarged from the furnace peripheral wall toward the furnace center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20175985A JPS6262120A (en) | 1985-09-13 | 1985-09-13 | Fluidized bed incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20175985A JPS6262120A (en) | 1985-09-13 | 1985-09-13 | Fluidized bed incinerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6262120A JPS6262120A (en) | 1987-03-18 |
| JPH0258525B2 true JPH0258525B2 (en) | 1990-12-10 |
Family
ID=16446465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20175985A Granted JPS6262120A (en) | 1985-09-13 | 1985-09-13 | Fluidized bed incinerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6262120A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03122411A (en) * | 1989-10-05 | 1991-05-24 | Kobe Steel Ltd | Fluidized bed type dust incinerator |
| GB2459508B (en) | 2008-04-25 | 2012-12-05 | Univ United Arab Emirates | Surfactant for use in the production of modified sulphur |
| US8043426B2 (en) * | 2008-05-13 | 2011-10-25 | Abdel-Mohsen Onsy Mohamed | Method for treating cement kiln dust |
| KR20130139556A (en) * | 2012-06-13 | 2013-12-23 | 주식회사 포스코 | Combustion furnace of fluidized bed |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5620456A (en) * | 1979-07-31 | 1981-02-26 | Matsushita Electric Works Ltd | Air massager |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5871526U (en) * | 1981-10-31 | 1983-05-14 | バブコツク日立株式会社 | fluidized bed equipment |
-
1985
- 1985-09-13 JP JP20175985A patent/JPS6262120A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5620456A (en) * | 1979-07-31 | 1981-02-26 | Matsushita Electric Works Ltd | Air massager |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6262120A (en) | 1987-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH07114954B2 (en) | Rapid fluidized bed reactor and its operating method | |
| JPH0258525B2 (en) | ||
| JP2714530B2 (en) | Incinerator and incineration method | |
| EP0836053B1 (en) | Fluidized bed incinerator | |
| KR100474205B1 (en) | Fluid Bottom Incinerator | |
| JP2006308226A (en) | Fluidized bed furnace and incineration method of fluidized bed furnace | |
| EP0699734B1 (en) | Coal firing device | |
| JP2955943B2 (en) | Arrangement structure of diffuser pipe in fluidized incinerator | |
| JPS6020018A (en) | Fluidizing method for waste incinerating fluidized-bed furnace and device thereof | |
| JP3550438B2 (en) | Fluidized bed incinerator | |
| JPS58182026A (en) | Fluidized bed incinerator with exhausting mechanism of massive body | |
| JPH11132427A (en) | Incinerator | |
| JPH04122926U (en) | Fluidized bed incinerator | |
| KR20000017461U (en) | Air distributor for the fluidized bed incinerato r | |
| JPH05196217A (en) | Turning sand layer type fluidized furnace | |
| JPH0351608Y2 (en) | ||
| JPH0445215A (en) | Structure of bottom part in circulating fluidized bed reduction furnace | |
| JPH0498009A (en) | Secondary air supply apparatus of fluidized bed incinerator | |
| JPH0599415A (en) | Fluidized bed type incinerator | |
| JPS60240911A (en) | Fluidized-bed furnace for waste | |
| JPH08269884A (en) | Boiler furnace for recovering soda | |
| JP2570651Y2 (en) | Waste incineration equipment | |
| JPS62280512A (en) | Fluidized bed incinerator | |
| CA2245294A1 (en) | Method and apparatus for further improving fluid flow and gas mixing in boilers | |
| JPH076620B2 (en) | Combustion method of swirl type melting furnace |