JP3035281B1 - Waste incinerator - Google Patents
Waste incineratorInfo
- Publication number
- JP3035281B1 JP3035281B1 JP10334115A JP33411598A JP3035281B1 JP 3035281 B1 JP3035281 B1 JP 3035281B1 JP 10334115 A JP10334115 A JP 10334115A JP 33411598 A JP33411598 A JP 33411598A JP 3035281 B1 JP3035281 B1 JP 3035281B1
- Authority
- JP
- Japan
- Prior art keywords
- grate
- combustion chamber
- hot gas
- waste
- secondary 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.)
- Expired - Fee Related
Links
Landscapes
- Incineration Of Waste (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
【要約】
【課題】 本発明は紙おむつ等の燃焼により火格子上の
熱ガス通路部に付着物が形成された場合においても、該
通路部に形成した付着物を除去することが出来る焼却炉
を提供することを目的とする。
【解決手段】 火格子を挟んで上側に一次燃焼室を、下
側に二次燃焼室を配置するとともに、該二次燃焼室の熱
ガスを前記火格子を介して一次燃焼室に送給するように
構成した焼却炉において、前記一次燃焼室内に、前記火
格子と対面してその平行な面内を移動する撹拌翼が火格
子中心より半径方向両側に延在する複数羽根構造である
とともに、該夫々の撹拌羽根の下面側に突設する、前記
熱ガス通路部の係合部が、異なる半径のピッチ円状に位
置していることを特徴とする。The present invention relates to an incinerator capable of removing deposits formed in a hot gas passage portion on a grate by burning a disposable diaper or the like even when the deposits are formed in the passage portion. The purpose is to provide. SOLUTION: A primary combustion chamber is arranged above a grate and a secondary combustion chamber is arranged below the grate, and hot gas in the secondary combustion chamber is supplied to the primary combustion chamber via the grate. In the incinerator configured as described above, in the primary combustion chamber, a stirring blade that faces the grate and moves in a plane parallel to the grate has a multi-blade structure extending radially on both sides from the center of the grate, The engagement portions of the hot gas passage portions projecting from the lower surfaces of the respective stirring blades are located at pitch circles having different radii.
Description
【0001】[0001]
【発明の属する技術分野】本発明は、家庭の一般ごみ及
び生ごみ、食堂の残飯、医療廃棄物、工業からの木材、
廃プラスチック等の焼却処理に適用される廃棄物焼却炉
に係り、特に病院や老人ホーム等の廃棄物のように、被
燃焼物中に紙おむつ等の排尿含水物を含む廃棄物の燃焼
に用いる小型の廃棄物焼却炉に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to household garbage and garbage, kitchen waste, medical waste, industrial wood,
The present invention relates to a waste incinerator applied to the incineration of waste plastics and the like, and particularly to small-sized incinerators used for burning waste containing urinary hydrates such as disposable diapers in the burnable materials, such as hospital and nursing home waste. Waste incinerator.
【0002】[0002]
【従来の技術】従来より小型の焼却炉において、設備コ
ストの低減化と小型化を図るために、火格子を挟んで上
側に一次燃焼室を、下側に二次燃焼室を配置するととも
に、該二次燃焼室の入口側にエジェクタバーナを設け、
廃棄物が投入される一次燃焼室で得られた熱分解ガスを
循環ダクトを介して二次燃焼室側に導き、前記エジェク
タバーナの燃料と熱分解ガスにより主燃焼を行なうよう
にした焼却炉が提案されている。(特願平9−4797
9号他)2. Description of the Related Art Conventionally, in a smaller incinerator, a primary combustion chamber is arranged above a grate and a secondary combustion chamber is arranged below a grate in order to reduce equipment costs and reduce size. An ejector burner is provided on the inlet side of the secondary combustion chamber,
An incinerator in which the pyrolysis gas obtained in the primary combustion chamber into which waste is introduced is led to the secondary combustion chamber through a circulation duct, and the main combustion is performed using the fuel of the ejector burner and the pyrolysis gas. Proposed. (Japanese Patent Application No. 9-4797
No. 9, etc.)
【0003】図7は、かかる従来の廃棄物焼却炉の構成
を示す断面図である。図において、炉内は火格子1を介
してその上方に一次燃焼室(ガス化燃焼室)2、下方に
二次燃焼室3と、上下の2つの室に分かれており、二次
燃焼室3入口側にエジェクタバーナ4を水平方向に設置
し火格子1下方の二次燃焼室3内に燃料ガス流Cが噴出
可能に配置されている。二次燃焼室3の出口側は均熱室
6を介して煙突10に連通している。一方、一次燃焼室
2の上方にはごみ投入口05が設けられ、該ごみ投入口
05から投入されたごみAは、火格子1により一次燃焼
室2に蓄えられる。FIG. 7 is a sectional view showing the structure of such a conventional waste incinerator. In the figure, the interior of the furnace is divided into a primary combustion chamber (gasification combustion chamber) 2 above it through a grate 1, a secondary combustion chamber 3 below it, and two upper and lower chambers. An ejector burner 4 is installed at the inlet side in a horizontal direction, and is arranged so that a fuel gas flow C can be jetted into the secondary combustion chamber 3 below the grate 1. The outlet side of the secondary combustion chamber 3 communicates with the chimney 10 via the soaking chamber 6. On the other hand, a refuse inlet 05 is provided above the primary combustion chamber 2, and refuse A introduced from the refuse input port 05 is stored in the primary combustion chamber 2 by the grate 1.
【0004】又一次燃焼室2上方側部と二次燃焼室3入
口側のエジェクタバーナ取り付け部(吸引室23)間に
は、ガス循環通路8が設けられ、エジェクタバーナ4の
噴射ガス流(燃料ガス流)Cの吸引力で、一次燃焼室2
でガス化した廃棄物(ごみ)Aの熱分解ガスBを二次燃
焼室3入口側に導くように構成されている。A gas circulation passage 8 is provided between the upper part of the primary combustion chamber 2 and the ejector burner mounting part (suction chamber 23) on the inlet side of the secondary combustion chamber 3 so that the injection gas flow of the ejector burner 4 (fuel Gas flow) by the suction force of C, the primary combustion chamber 2
The pyrolysis gas B of the waste (garbage) A gasified in the above is guided to the inlet side of the secondary combustion chamber 3.
【0005】エジェクタバーナ4は不図示の燃料11の
供給管、一次空気17の供給管、及び二次空気21の供
給管が同心状に囲繞されて構成され、これらの供給管に
はブロワ16により生成された、一次空気及び二次空気
が送給される。尚、22はディヒューザ、23は吸引室
である。The ejector burner 4 is constituted by a supply pipe for a fuel 11 (not shown), a supply pipe for a primary air 17 and a supply pipe for a secondary air 21 which are concentrically surrounded by a blower 16. The generated primary air and secondary air are supplied. Incidentally, 22 is a diffuser, and 23 is a suction chamber.
【0006】かかる構成において、ごみ投入口05から
火格子1上の一次燃焼室2に蓄えられた廃棄物Aは、バ
ーナ4の燃料ガスの一部(約30%)C’を火格子1下
から一次燃焼室2に供給することにより、部分燃焼し、
ガス化(熱分解ガスB)される。この部分燃焼により生
じた熱分解ガスBは、一次燃焼室2内を上昇し、循環通
路8を通ってバーナ4よりの燃料ガスCによって吸引混
合されて、二次燃焼室3に導入され、該二次燃焼室3で
前記熱分解ガスBと燃料ガスCの完全燃焼が行なわれ、
均熱室6を介して煙突10から大気へ放出される。In this configuration, the waste A stored in the primary combustion chamber 2 on the grate 1 from the refuse inlet 05 transfers a part (about 30%) of the fuel gas C ′ of the burner 4 under the grate 1. To the primary combustion chamber 2 to partially burn,
It is gasified (pyrolysis gas B). The pyrolysis gas B generated by the partial combustion rises in the primary combustion chamber 2, is sucked and mixed by the fuel gas C from the burner 4 through the circulation passage 8, and is introduced into the secondary combustion chamber 3. Complete combustion of the pyrolysis gas B and fuel gas C is performed in the secondary combustion chamber 3,
The air is released from the chimney 10 to the atmosphere via the soaking chamber 6.
【0007】[0007]
【発明が解決しようとする課題】かかる構成の廃棄物焼
却炉においては、火格子1上の一次燃焼室2に投入され
た廃棄物Aは種々雑多であり、そのいくつかの廃棄物中
には加熱により固化する低融点物質も多く含んでおり、
特に病院や老人ホーム等においては、食堂の残飯や医療
廃棄物に加えて多量の紙おむつが廃棄されるが、かかる
紙おむつは排尿等の水分中にNaClやKCl等の塩類
を多く含み、これらの塩類は紙おむつの一次燃焼室中で
の燃焼によりおむつ中灰(NaClを含む)として火格
子上に堆積し、時間経過とともに、灰中のNaやCl等
の塩類濃度が高くなり、火格子上でNa、ClやK(融
点650〜800℃)を核として、付着物を形成(灰溶
融固化焼結体)し、火格子のガス通気孔を閉塞させる。In the waste incinerator having such a structure, the waste A charged into the primary combustion chamber 2 on the grate 1 is various and various, and some of the wastes are contained in the waste A. It also contains many low-melting substances that solidify when heated,
Particularly in hospitals and nursing homes, a large amount of disposable diapers are discarded in addition to food leftovers and medical waste in the cafeteria. Such disposable diapers contain a large amount of salts such as NaCl and KCl in the water of urination and the like. Is deposited on the grate as ash (including NaCl) in the diaper by burning in the primary combustion chamber of the disposable diaper, and as time passes, the concentration of salts such as Na and Cl in the ash increases, and A deposit is formed (ash melt-solidified sintered body) using Cl, K (melting point 650 to 800 ° C.) as nuclei, and the gas vents of the grate are closed.
【0008】そしてガス通気孔が閉塞した場合、エジェ
クタバーナからの循環ガス量、より具体的には二次燃焼
室よりの熱ガス送給量が低下し、これに伴ないごみの焼
却処理量が低下するという不具合を有する。When the gas vent is closed, the amount of circulating gas from the ejector burner, more specifically, the amount of hot gas supplied from the secondary combustion chamber is reduced, and the amount of waste incineration is reduced accordingly. It has the disadvantage of lowering.
【0009】本発明はかかる課題を解決するために、前
記火格子のガス通気孔の閉塞を阻止するか、若しくは例
え閉塞した場合でも二次燃焼室よりの熱ガス送給量の低
下を極力阻止し得、これにより円滑な廃棄物の焼却処理
を行なうことの出来る小型焼却炉を提供することを目的
とする。In order to solve the above-mentioned problems, the present invention prevents the gas vents of the grate from being blocked, or minimizes the decrease in the amount of hot gas supplied from the secondary combustion chamber even if the holes are blocked. Accordingly, it is an object of the present invention to provide a small incinerator capable of performing a smooth waste incineration process.
【0010】[0010]
【課題を解決するための手段】請求項1記載の発明は、
火格子を挟んで上側に一次燃焼室を、下側に二次燃焼室
を配置するとともに、該二次燃焼室の熱ガスの一部を前
記火格子を介して一次燃焼室に送給するように構成した
焼却炉において、前記一次燃焼室外部に燃焼ガス遮断用
内蓋を介して廃棄物を収納するバケット及び該バケット
に廃棄物を投入する外蓋を具えたごみ投入部を設けると
ともに、前記内蓋を開口した後、前記バケットを介して
一次燃焼室内へ廃棄物を投入可能に構成した事を特徴と
する。かかる発明は、外蓋を開けた後、内蓋を開口した
時点にてバケットを回転させ、ごみの自由重力にて一次
燃焼室内へごみを落下させた後、遮断蓋、バケットを元
の位置に戻す。更にごみ投入口の内蓋より落下したごみ
を撹拌翼にて一次燃焼室内奥に移動させるため、遮断
蓋、バケットの回転を撹拌翼の相対位置とリンクさせた
機構とするのがよい。従って本発明によれば、一次燃焼
室上部からごみを投入するのに比し、ごみ収納バケット
位置を低くでき、また空間容積は密閉であり、外蓋開、
遮断蓋閉にてごみをバケットに投入し、外蓋を閉じて遮
断蓋を開とすることにより燃料ガスの外部への放出を完
全に遮断している。さらに撹拌翼位置と遮断蓋、バケッ
トの移動作動をリンクしており、ごみの自重落下に加え
て撹拌翼の回転力にて、容易に一次燃焼室内奥にごみを
投入することができる。According to the first aspect of the present invention,
A primary combustion chamber is arranged on the upper side of the grate and a secondary combustion chamber is arranged on the lower side, and a part of the hot gas in the secondary combustion chamber is supplied to the primary combustion chamber via the grate. In the incinerator configured in the above, while providing a bucket for storing waste through a combustion gas blocking inner lid outside the primary combustion chamber and a garbage input unit provided with an outer lid for charging waste into the bucket, After the inner lid is opened, waste can be put into the primary combustion chamber via the bucket. In this invention, after the outer lid is opened, the bucket is rotated at the time when the inner lid is opened, the refuse is dropped into the primary combustion chamber by the free gravity of the refuse, and the blocking lid and the bucket are returned to the original position. return. Further, in order to move the refuse falling from the inner lid of the refuse input port to the interior of the primary combustion chamber by the stirring blade, a mechanism in which the rotation of the blocking cover and the bucket is linked to the relative position of the stirring blade is preferable. Therefore, according to the present invention, it is possible to lower the position of the refuse storage bucket as compared with charging refuse from the upper part of the primary combustion chamber, the space volume is closed, the outer lid is opened,
Garbage is thrown into the bucket when the shut-off lid is closed, the outer lid is closed, and the shut-off lid is opened to completely shut off discharge of fuel gas to the outside. Further, the position of the stirring blade is linked to the movement of the shutoff lid and the bucket, so that the dust can be easily thrown into the interior of the primary combustion chamber by the rotating force of the stirring blade in addition to the falling of the waste by its own weight.
【0011】請求項2記載の発明は、前記発明に加え
て、前記一次燃焼室内に、前記火格子と対面してその平
行な面内を移動する撹拌翼を、又前記火格子に前記撹拌
翼移動方向に沿って延在する熱ガス通路部を夫々設ける
とともに、前記撹拌翼の下面側に前記熱ガス通路部に侵
入する係合部を設け、前記撹拌翼の移動に追従して前記
係合部が前記熱ガス通路部を移動し、該通路部の付着物
を除去可能に構成したことを特徴とする。尚、前記移動
には回転移動の他に往復移動も含む。従ってガス通路部
も円弧やリング円の他に往復方向に沿う平行スリットも
含み、更には平行スリットの延在方向が平行な面内で交
差するように開口した場合も含む。かかる発明によれ
ば、紙おむつ等の燃焼により火格子上でNaClやKC
l等(融点650〜800℃)を核として、前記火格子
の熱ガス通路部に付着物が形成された場合においても、
前記撹拌翼の移動に追従して前記係合部が前記熱ガス通
路部を移動し、該通路部に形成した付着物を除去するこ
とが出来るために火格子のガス通気孔を閉塞させること
がない。According to a second aspect of the present invention, in addition to the above invention, a stirring blade which faces the grate and moves in a plane parallel to the grate is provided in the primary combustion chamber. A hot gas passage portion extending along the moving direction is provided, and an engaging portion that penetrates into the hot gas passage portion is provided on a lower surface side of the stirring blade, and the engagement follows the movement of the stirring blade. The portion is configured to move in the hot gas passage portion so as to remove deposits on the passage portion. Note that the movement includes reciprocating movement in addition to rotational movement. Therefore, the gas passage portion also includes a parallel slit along the reciprocating direction in addition to the arc and the ring circle, and further includes a case where the parallel slits are opened such that the extending directions of the parallel slits intersect in a parallel plane. According to this invention, NaCl or KC is formed on a grate by burning paper diapers or the like.
1 and the like (melting point of 650 to 800 ° C.) as cores, even when deposits are formed in the hot gas passage portion of the grate,
Following the movement of the agitating blade, the engaging portion moves along the hot gas passage portion, and it is possible to remove the deposits formed in the passage portion, thereby closing the gas vent of the grate. Absent.
【0012】請求項3記載の発明は、前記火格子と対面
する回転翼の移動方向が回転方向であり、前記火格子に
形成した熱ガス通路部が円弧若しくはリング円である請
求項2記載の廃棄物焼却炉において、前記回転翼が火格
子中心より半径方向に延在する複数羽根構造であるとと
もに、該夫々の撹拌羽根の下面側に火格子側に突設する
複数の突設部を設けたことを特徴とする。[0012] According to a third aspect, the moving direction of the rotor blade facing the said grate is the rotational direction, according to claim 2, wherein the hot gas passage formed in the grate is an arc or ring yen In the waste incinerator, the rotating blades have a plurality of blade structures extending in the radial direction from the center of the grate, and a plurality of protrusions projecting toward the grate are provided on the lower surface side of each of the stirring blades. It is characterized by having.
【0013】本発明によれば、前記回転翼が火格子中心
より半径方向両側に延在する複数羽根構造である為に、
前記回転翼を回転させた際に左右対称になり、撹拌軸に
偏荷重が生じることがない。更に一次燃焼室内に蓄えら
れた廃棄物は、二次燃焼室よりの熱ガスにより一部燃焼
とガス化されるが、この廃棄物が例えば紙おむつ等の大
型の含水廃棄物にあっては、外側より順次乾燥→炭化→
灰化して行くが、この場合において前記廃棄物を撹拌せ
ずに置き火状態に置くと、外側の灰化部分が断熱層とな
って中心部が燃焼されずに焼け残りとなる(燃焼不足)
場合がある。According to the present invention, since the rotor has a multi-blade structure extending radially on both sides from the center of the grate,
When the rotary blade is rotated, it becomes symmetrical left and right, and there is no uneven load on the stirring shaft. Further, the waste stored in the primary combustion chamber is partially burned and gasified by the hot gas from the secondary combustion chamber, but when the waste is a large water-containing waste such as a disposable diaper, for example, More successive drying → carbonization →
Ashing proceeds, but in this case, if the waste is placed without agitation and placed in a fire state, the outer ashed portion becomes a heat insulating layer and the central portion is not burned and remains unburned (insufficient combustion).
There are cases.
【0014】このような場合に、前記両羽根構造の撹拌
翼を火格子と対面する位置で撹拌するとともに、撹拌羽
根の下面側に火格子側に突設する複数の突設部により、
火格子上面を強制的に撹拌して、紙おむつの外側の灰化
部分を強制的に取り去り、常に燃焼すべき炭化部分が露
出して撹拌され、効果的な燃焼が可能となる。In such a case, the agitating blades of the two-blade structure are agitated at a position facing the grate, and a plurality of projecting portions projecting toward the grate on the lower surface side of the agitating blades.
The grate upper surface is forcibly stirred to forcibly remove the incinerated portion outside the disposable diaper, and the carbonized portion to be burned is always exposed and stirred, thereby enabling effective combustion.
【0015】請求項4記載の発明は、前記火格子と対面
する回転翼の移動方向が回転方向であり、前記火格子に
形成した熱ガス通路部が円弧若しくはリング円である場
合において、前記回転翼が火格子中心より半径方向両側
に延在する複数羽根構造であるとともに、該夫々の撹拌
羽根の下面側に突設する、前記熱ガス通路部の係合部
が、異なる半径のピッチ円状に位置していることを特徴
とする。According to a fourth aspect of the present invention, when the moving direction of the rotor blade facing the grate is the rotation direction, and the hot gas passage portion formed in the grate is an arc or a ring circle, the rotating blade may be rotated. The blades have a multi-blade structure extending radially on both sides from the center of the grate, and the engagement portions of the hot gas passage portions projecting from the lower surface side of the respective stirring blades have pitch circular shapes having different radii. Is characterized by being located at
【0016】本発明によれば、前記熱ガス通路部の係合
部が前記請求項3記載の複数の突設部と同様な構成をえ
るために、請求項3記載の発明の効果とともに、前記熱
ガス通路部の係合部が、異なる半径のピッチ円状に形成
することにより、前記火格子上に多数の熱ガス通路部を
形成した場合においても、両撹拌羽根の係合部の配設ピ
ッチ円を交互に形成することにより全ての熱ガス通路部
の掻き取りが可能となる。According to the present invention, in order to engagement portion of the heat gas passage portion is obtain a structure similar to that of the plurality of projecting portions of the third aspect, together with the effect of the invention of claim 3, wherein Even when a large number of hot gas passages are formed on the grate, the engagement portions of the stirring blades are arranged by forming the engagement portions of the hot gas passages in a pitch circle shape having different radii. By alternately forming the pitch circles, all the hot gas passages can be scraped.
【0017】請求項5記載の発明は、火格子を挟んで上
側に一次燃焼室を、下側に二次燃焼室を配置するととも
に、該二次燃焼室の熱ガスを前記火格子を介して一次燃
焼室に送給するように構成した焼却炉において、前記火
格子に形成した熱ガス通路部が平行な複数のスリットで
あり、該スリット内に係合部を侵入させ、該係合部がス
リット移動方向に沿って往復移動する往復移動機構を設
けたことを特徴とする。かかる発明は前記係合部を回転
翼と一体に形成する必要はなく、別体に構成することが
出来、これにより回転翼の回転方向に制限を受けること
なく、ガス通路部を形成できる。According to a fifth aspect of the present invention, the primary combustion chamber is disposed above the grate and the secondary combustion chamber is disposed below the grate, and the hot gas in the secondary combustion chamber is passed through the grate. In the incinerator configured to be fed to the primary combustion chamber, the hot gas passage portion formed in the grate is a plurality of parallel slits, and an engaging portion is inserted into the slit, and the engaging portion is A reciprocating mechanism for reciprocating along the slit moving direction is provided. In this invention, the engaging portion does not need to be formed integrally with the rotor, but can be formed separately, whereby the gas passage can be formed without being restricted in the rotation direction of the rotor.
【0018】請求項6記載の発明は、火格子を挟んで上
側に一次燃焼室を、下側に二次燃焼室を配置するととも
に、該二次燃焼室の熱ガスを前記火格子を介して一次燃
焼室に送給するように構成した焼却炉において、前記火
格子の外側に熱ガス送給部を設けるとともに、該ガス送
給部を構成する通路壁を前記火格子面より一次燃焼室側
に向け上方に延在させ、前記火格子面上に廃棄物が堆積
した状態でも二次燃焼室の熱ガスが一次燃焼室側に常時
送給可能に構成したことを特徴とする。かかる発明によ
れば、燃焼初期において前記火格子の熱ガス通路を廃棄
物が塞いだ場合でも、又誤って前記火格子の熱ガス通路
を付着物が閉塞した場合でも、前記火格子の外方のガス
送給部により二次燃焼室の熱ガスを一次燃焼室に送給す
る通路が確保されているために、円滑な燃焼を保証でき
る。更に通常の燃焼状態であっても火格子下面とその外
側に位置するガス送給部で紙おむつ等の大型の廃棄物を
包み込むように燃焼することが出来、効率的な燃焼が可
能となる。According to a sixth aspect of the present invention, the primary combustion chamber is disposed above the grate and the secondary combustion chamber is disposed below the grate, and the hot gas in the secondary combustion chamber is passed through the grate. In the incinerator configured to feed the primary combustion chamber, a hot gas supply unit is provided outside the grate, and a passage wall forming the gas supply unit is located closer to the primary combustion chamber than the grate surface. , And the hot gas in the secondary combustion chamber can always be supplied to the primary combustion chamber side even when waste is deposited on the grate surface. According to this invention, even if the waste gas blocks the hot gas passage of the grate in the early stage of combustion, or even if the hot gas passage of the grate accidentally closes the deposit, Since a passage for supplying the hot gas in the secondary combustion chamber to the primary combustion chamber is secured by the gas supply section, smooth combustion can be guaranteed. Further, even in a normal combustion state, the gas can be burned so as to enclose large waste such as a disposable diaper by the gas supply unit located on the lower surface of the grate and the outside thereof, and efficient combustion becomes possible.
【0019】請求項7記載の発明は、前記請求項6記載
の発明に加えて、 前記第一の火格子の下方の二次燃焼
室底部に、第二の火格子を配設するとともに、夫々の火
格子に設けた熱ガス通路部が垂直投影方向において一致
しないように位置をずらして開口させたことを特徴とす
る。尚、熱ガス通路部が垂直投影方向において一致しな
いように位置をずらして開口させるとは、熱ガス通路部
のピッチ位置をずらして配設する場合と、リングスリッ
ト円と平行スリットの組合せで形成してもよい。According to a seventh aspect of the present invention, in addition to the sixth aspect, a second grate is provided at the bottom of the secondary combustion chamber below the first grate. The hot gas passages provided on the grate are shifted in position so that they do not coincide in the vertical projection direction. It should be noted that opening the hot gas passage portion so as to be displaced so as not to coincide in the vertical projection direction means that the hot gas passage portion is provided with a shifted pitch position, and is formed by a combination of a ring slit circle and a parallel slit. May be.
【0020】かかる発明によれば、前記第一の火格子に
設けた熱ガス通路部の掻き取りにより、未燃分も前記第
一の火格子下方に落下してしまう恐れがあるが、本発明
においては前記第一の火格子の下方に、第二の火格子が
配設され、夫々の火格子に設けた熱ガス通路部が垂直投
影方向において一致しないように位置をずらして開口さ
れている為に、前記第一の火格子下方に落下した未燃分
を容易に捕捉できる。According to this invention, unburned components may fall below the first grate by scraping the hot gas passage provided in the first grate. In, a second grate is disposed below the first grate, and the hot gas passages provided in the respective grate are opened so as to be displaced so that they do not coincide in the vertical projection direction. Therefore, it is possible to easily catch the unburned components falling below the first grate.
【0021】請求項8記載の発明は、請求項6記載の発
明に加えて、前記火格子の下方の二次燃焼室底部に、第
二の火格子を配設するとともに、該第二の火格子下方よ
り二次燃焼室内に冷却用空気が導入される風箱を設けた
ことを特徴とする。According to an eighth aspect of the present invention, in addition to the sixth aspect, a second grate is provided at the bottom of the secondary combustion chamber below the grate and the second grate is provided. A wind box for introducing cooling air into the secondary combustion chamber from below the grid is provided.
【0022】前記第二の火格子に付着物の核となる未燃
分が落下した場合においても、該火格子は下方よりの冷
却空気によりNa、ClやKの融点(650〜800
℃)以下に冷却されているために、該火格子の熱ガス通
路部に付着物が形成される恐れがない。Even in the case where unburned substances serving as nuclei of deposits fall on the second grate, the grate is cooled by the cooling air from below to melt the Na, Cl or K melting points (650 to 800).
° C) or less, there is no risk of deposits being formed in the hot gas passage of the grate.
【0023】[0023]
【0024】[0024]
【0025】請求項10記載の発明は、前記均熱室の煙
突が連設される出口側にセラミック板その他の耐熱材を
炉壁両側壁より交互に水平方向に取り付けて形成したこ
とを特徴とする。According to a tenth aspect of the present invention, a ceramic plate or other heat-resistant material is alternately and horizontally mounted on both sides of the furnace wall at an outlet of the soaking chamber where the chimney is continuously provided. I do.
【0026】このように二次燃焼室出口側の炉底を立上
げた下側堰により絞り通路24を形成することによりつ
ぎのような効果を有する。二次燃焼室は火格子1の下方
にあるために、灰と一緒に未燃分が落ちやすい。二次燃
焼室の炉底に落ちた未燃分は、前記下側堰がないと燃焼
バーナの噴出流等によってキャリオーバされて均熱室側
に流れてしまうが、下側堰を設けることによってこのよ
うな不具合を防げる。又下側堰を設けることにより温度
の高い二次燃焼室内での対流現象が生じ、一層の完全燃
焼が図られる。By forming the throttle passage 24 by the lower weir that raises the furnace bottom on the outlet side of the secondary combustion chamber, the following effects are obtained. Since the secondary combustion chamber is below the grate 1, unburned components easily fall off together with the ash. Unburned fuel that has fallen to the furnace bottom of the secondary combustion chamber is carried over by the combustion flow of the combustion burner and flows toward the soaking chamber without the lower weir. Such problems can be prevented. By providing the lower weir, a convection phenomenon occurs in the secondary combustion chamber where the temperature is high, and further complete combustion is achieved.
【0027】請求項9記載の発明は、前記均熱室の煙突
が連設される出口側にセラミック板その他の耐熱材を炉
壁両側壁より交互に水平方向に取り付けて形成したこと
を特徴とする。According to a ninth aspect of the present invention, a ceramic plate or other heat-resistant material is alternately mounted on both sides of the furnace wall in a horizontal direction at an outlet of the soaking chamber where a chimney is continuously provided. I do.
【0028】かかる発明によれば、均熱室内において燃
料ガスの温度、滞留時間を確保することにより、燃料ガ
スの無煙、無臭化を図ることが出来るとともに、前記セ
ラミック板は輻射変換体としても機能し、均熱室に流れ
た未燃煤塵の燃焼、消滅を図ることが出来る。According to this invention, by ensuring the temperature and residence time of the fuel gas in the soaking chamber, the fuel gas can be made smokeless and odorless, and the ceramic plate also functions as a radiation converter. In addition, it is possible to combust and extinguish the unburned dust flowing into the soaking chamber.
【0029】[0029]
【0030】[0030]
【0031】[0031]
【0032】[0032]
【発明の実施の形態】以下、図面を参照して本発明の好
適な実施例を例示的に詳しく説明する。但しこの実施例
に記載されている構成部品の寸法、材質、形状、その相
対的配置等は特に特定的な記載がないかぎりは、この発
明の範囲をそれに限定する趣旨ではなく、単なる説明例
にすぎない。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be illustratively described in detail below with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention unless otherwise specified, and are merely illustrative examples. Only.
【0033】図1及び図2は、本発明の実施形態に係る
廃棄物焼却炉の構成を示す断面図で、図1は正面断面
図、図2は側面断面図である。図1において、炉内は火
格子1を介してその上方に一次燃焼室(ガス化燃焼室)
2、下方に二次燃焼室3と、上下の2つの室に分かれて
おり、二次燃焼室3入口側にディヒューザ22、更にそ
の上流側に吸引室23を設け、該吸引室23内にエジェ
クタバーナ4を水平方向に設置し火格子1下方の二次燃
焼室3内に燃料ガス流が噴出可能に配置されている。二
次燃焼室3の出口側は絞り通路24を介して均熱室6及
び煙突10に連通している。1 and 2 are sectional views showing the configuration of a waste incinerator according to an embodiment of the present invention. FIG. 1 is a front sectional view, and FIG. 2 is a side sectional view. In FIG. 1, the inside of the furnace is placed above a primary combustion chamber (gasification combustion chamber) via a grate 1.
2, a lower part is divided into a secondary combustion chamber 3 and two upper and lower chambers. A diffuser 22 is provided on the inlet side of the secondary combustion chamber 3, and a suction chamber 23 is further provided on the upstream side thereof. The burner 4 is installed in a horizontal direction, and is arranged so that a fuel gas flow can be injected into the secondary combustion chamber 3 below the grate 1. The outlet side of the secondary combustion chamber 3 communicates with the soaking chamber 6 and the chimney 10 via the throttle passage 24.
【0034】絞り通路24は、二次燃焼室3出口側の炉
底を矩形状に立上げた下側堰24aと、その上方に位置
する均熱室6側との間を垂下して形成される区画壁24
bとによって狭域化して形成される。そしてこのように
二次燃焼室3出口側の炉底を立上げた下側堰24aによ
り絞り通路24を形成する理由は次の通りである。The throttle passage 24 is formed so as to hang down between a lower weir 24a in which the furnace bottom at the outlet side of the secondary combustion chamber 3 is raised in a rectangular shape and the heat equalizing chamber 6 located above the lower weir 24a. Partition wall 24
b to form a narrower region. The reason why the throttle passage 24 is formed by the lower weir 24a that rises the furnace bottom on the outlet side of the secondary combustion chamber 3 is as follows.
【0035】二次燃焼室3は火格子1の下方にあるため
に、灰と一緒に未燃分が落ちやすい。二次燃焼室3の炉
底に落ちた未燃分は、前記下側堰24aがないとエジェ
クタバーナ4の噴出流等によってキャリオーバされて均
熱室6側に流れてしまうが、堰24aを設けることによ
ってこのような不具合を防げる。又堰24aを設けるこ
とにより温度の高い二次燃焼室3内での対流現象が生
じ、一層の完全燃焼が図られる。Since the secondary combustion chamber 3 is located below the grate 1, unburned components easily fall off together with the ash. Unburned components that have fallen to the furnace bottom of the secondary combustion chamber 3 are carried over by the ejected flow of the ejector burner 4 and flow toward the soaking chamber 6 without the lower weir 24a, but the weir 24a is provided. This can prevent such a problem. Also, the provision of the weir 24a causes a convection phenomenon in the secondary combustion chamber 3 where the temperature is high, and further complete combustion is achieved.
【0036】一方、均熱室6は、煙突10が連設される
出口側を縮径し、該縮径部に多孔質セラミック板12を
左右両側壁より交互に水平方向に取り付け、均熱室6内
において燃料ガスの温度、滞留時間を確保することによ
り、燃料ガスの無煙、無臭化を図る。尚、前記多孔質セ
ラミック板12は輻射変換体としても機能し、均熱室6
に流れた未燃煤塵の燃焼、消滅を図る。煙突10は炉内
が負圧に保持されるように煙突高さを設定している。On the other hand, the soaking chamber 6 has a reduced diameter at the outlet side where the chimney 10 is continuously provided, and porous ceramic plates 12 are alternately attached to the reduced diameter portion from both left and right side walls in a horizontal direction. By ensuring the temperature and residence time of the fuel gas inside 6, smokeless and odorless fuel gas is achieved. Incidentally, the porous ceramic plate 12 also functions as a radiation converter,
To burn and extinguish unburned dust that has flowed into the area. The height of the chimney 10 is set so that the inside of the furnace is maintained at a negative pressure.
【0037】次に前記火格子1上方に位置する一次燃焼
室2の構造について説明する。一次燃焼室2上面側には
撹拌軸52を回転させる為の駆動モータ51が取り付け
られており、該駆動モータ51はモータ軸51aを介し
て撹拌軸52(中空軸)をボルト53結合にて連結さ
せ、該撹拌軸52を一次燃焼室2内に垂直に貫通させ、
その下端を火格子1中心位置に垂直に突設させた支持軸
54に回転自在に嵌合させる。前記撹拌軸52は中空軸
で形成され、その上下両端をモータ軸51aと支持軸5
4により上下動自在に嵌合されているために、モータ軸
51aとのボルト53結合位置を上下に調整することに
より前記撹拌軸52に取り付けた撹拌羽根55の取り付
け高さを任意に調整できる。Next, the structure of the primary combustion chamber 2 located above the grate 1 will be described. A drive motor 51 for rotating the stirring shaft 52 is mounted on the upper surface side of the primary combustion chamber 2. The driving motor 51 connects the stirring shaft 52 (hollow shaft) with a bolt 53 via a motor shaft 51 a. And the stirring shaft 52 is vertically penetrated into the primary combustion chamber 2,
The lower end is rotatably fitted to a support shaft 54 projecting vertically from the center of the grate 1. The stirring shaft 52 is formed as a hollow shaft, and the upper and lower ends thereof are connected to the motor shaft 51a and the support shaft 5a.
4, the mounting height of the stirring blade 55 attached to the stirring shaft 52 can be arbitrarily adjusted by adjusting the position of the bolt 53 connected to the motor shaft 51a up and down.
【0038】撹拌羽根55は撹拌軸52より燃焼室炉壁
方向に水平に延在する偏平三角形状をなし、後記する内
蓋56の開口57下端位置より火格子1取り付け位置ま
での間に左右交互に複数配設する。尚、火格子1は撹拌
羽根55の回転に沿う円形形状をしており、一方炉内は
断面方形状をしており、そして前記図2及び図3に示す
ように、炉内角隅部の火格子1との空隙部にガス通気孔
48を設けるとともに、該ガス通気孔48の上部にナイ
フエッジ状のガイドフィン49を設け、前記ガス通気孔
48を廃棄物が塞がないようにする。これにより燃焼初
期でも前記ガス通気孔48より二次燃焼室3側より一次
燃焼室2へ熱ガスが導入され、円滑な燃焼が可能とな
る。The stirring blade 55 has a flat triangular shape extending horizontally from the stirring shaft 52 toward the combustion chamber furnace wall. The stirring blade 55 alternates between the lower end position of the opening 57 of the inner lid 56 to be described later and the position where the grate 1 is attached. To be installed in multiple locations. The grate 1 has a circular shape along the rotation of the stirring blade 55, while the inside of the furnace has a rectangular cross section, and as shown in FIG. 2 and FIG. A gas vent 48 is provided in the gap with the lattice 1, and a knife-edge-shaped guide fin 49 is provided above the gas vent 48 so that the gas vent 48 is not blocked by waste. As a result, even in the initial stage of the combustion, the hot gas is introduced from the side of the secondary combustion chamber 3 into the primary combustion chamber 2 through the gas vent 48, and smooth combustion can be performed.
【0039】次にごみ投入部5の構造について図2に基
づいて説明する。ごみ投入部5は、一次燃焼室2の内蓋
56の開口部57に面接して取り付けられ、前記内蓋5
6と対面する投入部上部側壁には手動にて開放される外
蓋58が取り付けられている。外蓋58と内蓋56の間
にはバケット59及び内蓋56が周回可能な上部空間6
0を有し、該上部空間60下方にバケット59収納空間
を設ける。バケット59は、内蓋56下端の炉外壁に設
けたヒンジ64を中心として前記上部空間60内を周回
し、内蓋開口57より炉内に廃棄物を投入可能に構成し
ている。一方、内蓋56は上端に設けたヒンジ65を中
心として上部空間60内を回動し、該上部空間60天井
位置に停止するように構成されている。Next, the structure of the waste input section 5 will be described with reference to FIG. The refuse input section 5 is attached in contact with the opening 57 of the inner lid 56 of the primary combustion chamber 2, and is attached to the inner lid 5.
An outer lid 58, which is manually opened, is attached to the upper wall of the input section facing the inner wall 6. An upper space 6 around which the bucket 59 and the inner lid 56 can rotate between the outer lid 58 and the inner lid 56.
0, and a bucket 59 storage space is provided below the upper space 60. The bucket 59 orbits around the upper space 60 around a hinge 64 provided on the furnace outer wall at the lower end of the inner lid 56, and is configured so that waste can be put into the furnace through the inner lid opening 57. On the other hand, the inner lid 56 is configured to rotate in the upper space 60 around a hinge 65 provided at the upper end and stop at the ceiling position of the upper space 60.
【0040】図1に戻り、一次燃焼室2上方側部と二次
燃焼室3入口側のエジェクタバーナ4が取り付けられて
いる吸引室23間には、ガス循環ダクト8が設けられ、
エジェクタバーナ4の噴射ガスの吸引力で、一次燃焼室
2でガス化した廃棄物の熱分解ガスをデヒューザ22を
介して二次燃焼室3入口側に導くように構成されてい
る。エジェクタバーナ4は前記従来技術と同様に燃料供
給管、一次空気供給管、及び二次空気供給管が同心状に
囲繞されて構成され、これらの供給間にはブロワ16に
より生成された、一次空気及び二次空気が送給される。Returning to FIG. 1, a gas circulation duct 8 is provided between the upper side of the primary combustion chamber 2 and the suction chamber 23 to which the ejector burner 4 on the inlet side of the secondary combustion chamber 3 is attached.
The structure is such that the pyrolysis gas of the waste gasified in the primary combustion chamber 2 is guided to the inlet side of the secondary combustion chamber 3 via the diffuser 22 by the suction force of the injection gas from the ejector burner 4. The ejector burner 4 comprises a fuel supply pipe, a primary air supply pipe, and a secondary air supply pipe concentrically surrounded in the same manner as in the prior art, and a primary air generated by a blower 16 is provided between these supplies. And secondary air is delivered.
【0041】かかる構成において、本焼却炉の廃棄物投
入から燃焼終了までの手順を簡単に説明する。先ず前記
ごみ投入部5のバケット59と内蓋56の回動タイミン
グは連動しており、その動作手順を簡単に説明するに、
前記ごみ投入部5の外蓋58よりバケット59内に紙お
むつ等の廃棄物を投入した後、外蓋58を閉めることに
より、不図示の内蓋開放スイッチが働き、上部空間60
の天井位置まで内蓋56が回動し、内蓋開口57が開放
される。In this configuration, the procedure from the input of waste to the end of combustion in the incinerator will be briefly described. First, the rotation timing of the bucket 59 and the inner lid 56 of the refuse input unit 5 is linked, and the operation procedure will be briefly described.
After throwing waste such as disposable diapers into the bucket 59 from the outer lid 58 of the refuse input section 5, the outer lid 58 is closed.
The inner lid 56 rotates to the ceiling position of the inner lid, and the inner lid opening 57 is opened.
【0042】バケット59は不図示のスイッチにより、
内蓋56が上部空間60天井位置まで回動したのを確認
した後、周回を開始して内蓋開口57より炉内に外蓋5
8が閉じられた状態で廃棄物が炉内の一次燃焼室2に投
入される。この際、最上段の撹拌羽根550に直接廃棄
物が乗らないように、該最上段の撹拌羽根550が内蓋
開口57の反対側に位置するように撹拌羽根550の回
転タイミングを設定している。前記廃棄物の投入が完了
した後、直ちに内蓋56が元の位置に復帰して内蓋開口
57を閉塞する。The bucket 59 is operated by a switch (not shown)
After confirming that the inner lid 56 has been rotated to the ceiling position of the upper space 60, the circulation starts and the outer lid 5 is inserted into the furnace through the inner lid opening 57.
The waste is charged into the primary combustion chamber 2 in the furnace in a state where 8 is closed. At this time, the rotation timing of the stirring blade 550 is set such that the uppermost stirring blade 550 is positioned on the opposite side of the inner lid opening 57 so that the waste does not directly get on the uppermost stirring blade 550. . Immediately after the completion of the introduction of the waste, the inner lid 56 returns to the original position and closes the inner lid opening 57.
【0043】前記内蓋開口57より適宜タイミングで、
火格子1上の一次燃焼室2に投入蓄えられた紙おむつ等
の廃棄物は撹拌羽根55により回転撹拌されながら、後
記する燃焼が行なわれる。即ち、内蓋開口57より火格
子1上の一次燃焼室2に蓄えられた廃棄物6は、バーナ
4の燃料ガスの一部(約30%)を火格子1下及びガス
通気孔48から一次燃焼室2に供給することにより、部
分燃焼し、ガス化(熱分解ガス)される。この部分燃焼
により生じた熱分解ガスは、一次燃焼室2内を上昇し、
循環ダクト8を通って吸引室23に導かれ、エジェクタ
バーナ4よりの燃料ガスの噴出によって吸引混合され
て、二次燃焼室3に導入され、該二次燃焼室3で前記熱
分解ガスと燃料ガスの完全燃焼が行なわれ、該燃料ガス
は均熱室6内で温度と滞留時間を確保しながら無煙無臭
にクリーン化した後、煙突10から大気へ放出される。From the inner lid opening 57 at appropriate timing,
Waste, such as disposable diapers, charged and stored in the primary combustion chamber 2 on the grate 1 is subjected to combustion described later while being rotationally stirred by the stirring blades 55. That is, the waste 6 stored in the primary combustion chamber 2 on the grate 1 through the inner lid opening 57 partially disposes a part (about 30%) of the fuel gas of the burner 4 under the grate 1 and from the gas vent 48. By supplying the fuel to the combustion chamber 2, the fuel is partially burned and gasified (pyrolyzed gas). The pyrolysis gas generated by this partial combustion rises in the primary combustion chamber 2,
The fuel gas is guided to the suction chamber 23 through the circulation duct 8, is suction-mixed by the ejection of the fuel gas from the ejector burner 4, and is introduced into the secondary combustion chamber 3. The gas is completely burnt, and the fuel gas is smokelessly and odorlessly cleaned while maintaining the temperature and the residence time in the soaking chamber 6, and then discharged from the chimney 10 to the atmosphere.
【0044】さて前記廃棄物が紙おむつを主とする病院
廃棄物の場合、前記火格子1とこれに対面する撹拌羽根
55は次のように構成するのがよい。図4はその火格子
とこれに対面する最下段の撹拌羽根の構成を示す第1の
実施形態で、(A)は要部正面図、(B)は火格子の熱
ガス通路部と係合部としての丸棒の位置関係を示す
(A)のA−A線断面図である。同図において円形状に
形成した火格子1には、熱ガス通路部31を同心状に多
数のリング円で形成するとともに、該リング円間を保持
するために、火格子1の下面に半径方向に延設する保持
部材32を固設する。When the waste is hospital waste mainly composed of disposable diapers, the grate 1 and the stirring blade 55 facing the grate 1 are preferably constructed as follows. 4A and 4B show the first embodiment showing the structure of the grate and the lowermost stirring blade facing the grate. FIG. 4A is a front view of a main part, and FIG. FIG. 4A is a cross-sectional view taken along the line AA of FIG. In the grate 1 formed in a circular shape in FIG. 1, a hot gas passage portion 31 is formed concentrically with a large number of ring circles, and a radial direction is formed on the lower surface of the grate 1 in order to maintain a space between the ring circles. Is fixedly provided.
【0045】一方、前記火格子1と対面する最下段の撹
拌羽根55A、55Bは火格子1中心に位置する撹拌軸
52の半径方向両側に対称に延在する2枚以上の偶数枚
の複数羽根構造(本実施例では2枚)で形成するととも
に、該夫々の撹拌羽根55A、55Bの下面側に火格子
1側に突設する複数の掻き取り板33(突設部)と、該
掻き取り板33の間に前記熱ガス通路部31に侵入する
丸棒34(係合部)を設け、前記撹拌羽根55A、55
Bの回転にしたがって追従して前記丸棒34が前記熱ガ
ス通路部31を移動し、該通路部31に形成した付着物
を除去可能に構成している。On the other hand, the lowermost stirring blades 55A and 55B facing the grate 1 are two or more even-numbered plurality of blades symmetrically extending on both radial sides of the stirring shaft 52 located at the center of the grate 1. A plurality of scraping plates 33 (projecting portions) projecting from the lower surface side of each of the stirring blades 55A and 55B to the grate 1 side, and A round bar 34 (engaging portion) is provided between the plates 33 to enter the hot gas passage 31 and the stirring blades 55A, 55
The round bar 34 moves in the hot gas passage 31 following the rotation of B, so that the deposits formed in the passage 31 can be removed.
【0046】そして更に前記夫々の撹拌羽根55A、5
5Bの下面側に突設する掻き取り板33と丸棒34は、
左側の撹拌羽根55Aと右側の撹拌羽根55Bで、異な
る半径のピッチ円状に突設させている。即ち左側の撹拌
羽根55A下面より突設する丸棒34は、中心より1、
3、5番目のピッチ円に対応する熱ガス通路部31に侵
入する位置に、又掻き取り板33は前記1、3、5のピ
ッチ円の間と外側に夫々設けている。一方、右側の撹拌
羽根55Bより突設する丸棒34は、中心より2、4番
目のピッチ円に対応する熱ガス通路部31に侵入する位
置に、又掻き取り板33は前記2、4のピッチ円の間と
その外側に設けている。Further, the respective stirring blades 55A, 55A,
The scraping plate 33 and the round bar 34 projecting from the lower surface side of 5B
The left stirring blade 55A and the right stirring blade 55B protrude in a pitch circle shape having different radii. That is, the round bar 34 projecting from the lower surface of the left stirring blade 55A is 1 from the center,
The scraping plates 33 are provided at positions where they enter the hot gas passage portions 31 corresponding to the third and fifth pitch circles, and between and outside the pitch circles of the first, third and fifth pitch circles. On the other hand, the round bar 34 protruding from the right stirring blade 55B is located at a position where it enters the hot gas passage 31 corresponding to the second and fourth pitch circles from the center. It is provided between and outside the pitch circle.
【0047】かかる実施形態によれば、一次燃焼室2内
に蓄えられた廃棄物は、二次燃焼室3よりの熱ガスによ
り一部燃焼とガス化されるが、この廃棄物が、例えば紙
おむつ等の大型の含水廃棄物にあっては、外側より順次
乾燥→炭化→灰化して行くが、この場合において前記廃
棄物を撹拌せずに置き火状態に置くと、外側の灰化部分
が断熱層となって中心部が燃焼されずに焼け残りとなる
(燃焼不足)場合がある。According to this embodiment, the waste stored in the primary combustion chamber 2 is partially burned and gasified by the hot gas from the secondary combustion chamber 3, and this waste is, for example, disposable diapers. In the case of large-sized water-containing wastes, such as drying → carbonization → incineration sequentially from the outside, in this case, if the waste is placed without agitation and put on fire, the outer ashing part is insulated There is a case where the layer becomes a layer and the central portion is not burned and remains unburned (insufficient combustion).
【0048】このような場合に、前記両羽根構造の撹拌
羽根55A、55Bを火格子1と対面する位置で撹拌す
るとともに、撹拌羽根55A、55Bの下面側に火格子
1側に突設する複数の掻き取り板33により、火格子1
上面を強制的に撹拌して、紙おむつの外側の灰化部分を
強制的に取り去り、常に燃焼すべき炭化部分が露出して
撹拌され、効果的な燃焼が可能となる。In such a case, the stirring blades 55A, 55B of the double-blade structure are stirred at a position facing the grate 1 and a plurality of stirring blades 55A, 55B are provided on the lower surface side of the stirring blades 55 so as to protrude toward the grate 1 side. Grate 1 by the scraping plate 33
The upper surface is forcibly agitated to forcibly remove the incinerated portion outside the disposable diaper, and the carbonized portion to be burned is always exposed and agitated, thereby enabling effective combustion.
【0049】又、紙おむつ等の燃焼により火格子1上で
Na、Cl、K等(融点650〜800℃)を核とし
て、前記火格子1の熱ガス通路部31に付着物が形成さ
れた場合においても、前記撹拌羽根55A、55Bの回
転に追従して前記丸棒34が前記熱ガス通路部31を移
動し、該通路部31に形成した付着物を除去することが
出来るために火格子1のガス通気孔を閉塞させることが
ない。Also, when deposits are formed in the hot gas passage portion 31 of the grate 1 with Na, Cl, K, etc. (melting point 650-800 ° C.) as nuclei on the grate 1 by burning a disposable diaper or the like. Also, the round bar 34 moves in the hot gas passage portion 31 following the rotation of the stirring blades 55A and 55B, and can remove the deposits formed in the passage portion 31. The gas vent hole is not blocked.
【0050】更に、前記火格子1上に多数のリング熱ガ
ス通路部31を形成した場合においても、両撹拌羽根5
5A、55Bの係合部の配設ピッチ円を交互に形成する
ことにより全ての熱ガス通路部31の掻き取りが可能と
なる。Furthermore, even when a large number of ring hot gas passages 31 are formed on the grate 1, both stirring blades 5
By alternately forming the pitch circles of the engaging portions 5A and 55B, all the hot gas passage portions 31 can be scraped.
【0051】図5は火格子の配置形状とこれに対面する
最下段の撹拌羽根の構成を示す第2の実施形態で、
(A)は要部正面図、(B)は火格子の熱ガス通路部と
係合部としての丸棒の位置関係を示す(A)のB−B線
断面図である。本実施形態は、最下段の撹拌羽根55
A、55Bと対面する第一の火格子1Aの下方に、第二
の火格子1Bを、上下に複数段状に配設するとともに、
夫々の火格子1A、1Bに設けた熱ガス通路部31A、
31Bが垂直投影方向において一致しないように位置を
ずらして開口させたものである。FIG. 5 is a second embodiment showing the arrangement of the grate and the configuration of the lowermost stirring blade facing the grate.
(A) is a front view of a main part, and (B) is a cross-sectional view taken along the line BB of (A), showing a positional relationship between a hot gas passage portion of the grate and a round bar as an engagement portion. In this embodiment, the lowermost stirring blade 55
A, below the first grate 1A facing 55B, the second grate 1B is arranged in a plurality of stages up and down,
Hot gas passage portions 31A provided in the respective grate 1A, 1B,
The opening 31B is shifted in position so that 31B does not coincide in the vertical projection direction.
【0052】尚、熱ガス通路部31が垂直投影方向にお
いて一致しないように位置をずらして開口させるとは、
熱ガス通路部31のピッチ位置をずらして配設する場合
と、リングスリット円と平行スリットの組合せで形成し
てもよく、更には平行スリットの延在方向が平行な面内
で交差するように開口してもよい。It is to be noted that the opening of the hot gas passage portion 31 with the position shifted so that the hot gas passage portion 31 does not coincide in the vertical projection direction means that
The hot gas passage portion 31 may be formed by shifting the pitch position, and may be formed by a combination of a ring slit circle and a parallel slit. Further, the extending directions of the parallel slits may intersect in a parallel plane. It may be open.
【0053】本実施形態は、第一の火格子1A及び第二
の火格子1Bのいずれも熱ガス通路部31A、31Bを
平行スリットで形成し、そのスリット位置を左右に位置
をずらして開口させている。尚、本実施形態は前記火格
子1Aに形成した熱ガス通路部31Aが平行な複数のス
リットであり、一方撹拌羽根55A、55Bは回転方向
である為に、該スリット内に係合させる丸棒34を撹拌
羽根55A、55B側に設けることが出来ない。そこで
該第一の火格子1Aの下面側に前記スリット移動方向に
沿って往復移動する往復移動部材37を前記スリット3
1と直交する方向に延在させて設け、該往復移動部材3
7上に前記夫々のスリット31に侵入する丸棒34を設
けている。In this embodiment, both the first grate 1A and the second grate 1B have the hot gas passage portions 31A, 31B formed by parallel slits, and the slit positions are opened by shifting the positions to the left and right. ing. In this embodiment, since the hot gas passage 31A formed in the grate 1A is a plurality of parallel slits, while the stirring blades 55A and 55B are in the rotation direction, a round bar engaged in the slit is used. 34 cannot be provided on the stirring blades 55A, 55B side. Therefore, a reciprocating member 37 reciprocating along the slit moving direction is provided on the lower surface side of the first grate 1A.
The reciprocating member 3 is provided so as to extend in a direction orthogonal to
A round bar 34 that penetrates each slit 31 is provided on 7.
【0054】かかる丸棒34を撹拌羽根55A、55B
と一体に形成する必要はなく、別体に構成することが出
来、これにより撹拌羽根55A、55Bの回転方向に制
限を受けることなく、ガス通路部31を任意の形状に形
成できる。又、本実施形態においては前記第一の火格子
1Aの下方に、第二の火格子1Bが配設され、夫々の火
格子1A、1Bに設けた熱ガス通路部31A、31Bが
垂直投影方向において一致しないように位置をずらして
開口されている為に、前記第一の火格子1A下方に落下
した未燃分を容易に捕捉できる。The round bar 34 is connected to the stirring blades 55A and 55B.
It is not necessary to form the gas passage portion 31 integrally with the gas passage portion 31. Thus, the gas passage portion 31 can be formed in an arbitrary shape without being restricted in the rotation direction of the stirring blades 55A and 55B. Further, in the present embodiment, a second grate 1B is provided below the first grate 1A, and the hot gas passage portions 31A, 31B provided in the respective grate 1A, 1B are directed in the vertical projection direction. Since the openings are shifted so that they do not coincide with each other, unburned components falling below the first grate 1A can be easily captured.
【0055】図6は本発明の他の実施形態に係る焼却炉
で、前記第一の火格子1Aの下方の、二次燃焼室3底部
に第二の火格子1Bを配設するとともに、該第二の火格
子1B下方より二次燃焼室3内に冷却用空気38が導入
される風箱39を設けた構成とする。FIG. 6 shows an incinerator according to another embodiment of the present invention, in which a second grate 1B is provided at the bottom of the secondary combustion chamber 3 below the first grate 1A. A wind box 39 into which the cooling air 38 is introduced into the secondary combustion chamber 3 from below the second grate 1B is provided.
【0056】かかる実施形態によれば、前記第二の火格
子1Bに付着物の核となる未燃分が落下した場合におい
ても、該火格子1Bは下方よりの冷却空気38によりN
a、ClやKの融点(650〜800℃)以下に冷却さ
れているために、該火格子1Bの熱ガス通路部31Bに
付着物が形成される恐れがない。According to this embodiment, even when the unburned material serving as the nucleus of the deposit falls on the second grate 1B, the grate 1B is cooled by the cooling air 38 from below.
Since it is cooled to the melting point of a, Cl or K (650 to 800 ° C.) or less, there is no possibility that deposits are formed on the hot gas passage portion 31B of the grate 1B.
【0057】[0057]
【発明の効果】以上記載した如く本発明によれば、一次
燃焼室に廃棄物を蓄えるとともに、紙おむつ等の燃焼に
より火格子上でNa、ClやK等(融点650〜800
℃)を核として付着物が形成され、二次燃焼室より熱ガ
スを送給する火格子のガス通気部が閉塞される恐れを円
滑に阻止するとともに、又例え閉塞した場合でも二次燃
焼室よりの熱ガス送給量の低下を極力阻止し得、これに
より円滑な廃棄物の焼却処理を行なうことの出来る。As described above, according to the present invention, wastes are stored in the primary combustion chamber, and Na, Cl, K, etc. (melting point 650 to 800) are placed on the grate by burning paper diapers and the like.
℃) as a nucleus, and smoothly prevents the gas ventilation part of the grate which supplies the hot gas from the secondary combustion chamber from being blocked, and even if it is blocked, the secondary combustion chamber A further reduction in the supply of hot gas can be prevented as much as possible, whereby a smooth waste incineration process can be performed.
【図1】 図1及び図2は、本発明の実施形態に係る廃
棄物焼却炉の構成を示す断面図で、図1はその正面断面
図である。FIG. 1 and FIG. 2 are sectional views showing the configuration of a waste incinerator according to an embodiment of the present invention, and FIG. 1 is a front sectional view thereof.
【図2】 図1の側面断面図である。FIG. 2 is a side sectional view of FIG.
【図3】 図1のA−A線断面図で、炉内角隅部の火格
子との空隙部にガス通気孔を設けている構成を示す。FIG. 3 is a cross-sectional view taken along line AA of FIG. 1, showing a configuration in which a gas vent hole is provided in a gap between a furnace grate at a corner inside the furnace.
【図4】 火格子とこれに対面する最下段の撹拌羽根の
構成を示す第1の実施形態で、(A)は要部正面図、
(B)は火格子の熱通路部と係合部としての丸棒の位置
関係を示す(A)のA−A線断面図である。4A is a first embodiment showing a configuration of a grate and a lowermost stirring blade facing the grate, FIG.
(B) is a sectional view taken along line AA of (A), showing a positional relationship between a heat passage portion of the grate and a round bar as an engaging portion.
【図5】 火格子の配置形状とこれに対面する最下段の
撹拌羽根の構成を示す第2の実施形態で、(A)は要部
正面図、(B)は火格子の熱通路部と係合部としての丸
棒の位置関係を示す(A)のB−B線断面図である。FIG. 5 is a second embodiment showing the arrangement of the grate and the configuration of the lowermost stirring blade facing the grate. FIG. 5 (A) is a front view of a main part, FIG. It is BB sectional drawing of (A) which shows the positional relationship of the round bar as an engaging part.
【図6】 本発明の他の実施形態に係る焼却炉を示す概
略図である。FIG. 6 is a schematic view showing an incinerator according to another embodiment of the present invention.
【図7】 従来の廃棄物焼却炉の構成を示す断面図であ
る。FIG. 7 is a cross-sectional view showing a configuration of a conventional waste incinerator.
1、1A、1B 火格子 2 一次燃焼室(ガス化燃焼室) 3 二次燃焼室 4 エジェクタバーナ 5 ごみ投入部 6 均熱室 10 煙突 12 セラミック板 23 吸引室 24 絞り通路 24a 下側堰 33 掻き取り板(突設部) 31、31A、31B 熱ガス通路部 34 丸棒 48 ガス通気孔 49 ガイドフィン 52 撹拌軸 55、55A、55B、550 撹拌羽根 56 内蓋 57 開口部 58 外蓋 59 バケット DESCRIPTION OF SYMBOLS 1, 1A, 1B Grate 2 Primary combustion chamber (gasification combustion chamber) 3 Secondary combustion chamber 4 Ejector burner 5 Garbage charging part 6 Equalizing chamber 10 Chimney 12 Ceramic plate 23 Suction chamber 24 Restrictor passage 24a Lower dam 33 Scratching Stripping plate (projecting portion) 31, 31A, 31B Hot gas passage 34 Round bar 48 Gas vent 49 Guide fin 52 Stirring shaft 55, 55A, 55B, 550 Stirring blade 56 Inner lid 57 Opening 58 Outer lid 59 Bucket
フロントページの続き (51)Int.Cl.7 識別記号 FI F23G 5/44 ZAB F23G 5/44 ZABC (72)発明者 日野 裕一 長崎市深堀町五丁目717番地1 長菱エ ンジニアリング株式会社内 (56)参考文献 特開 平10−246412(JP,A) 特開 昭55−53615(JP,A) 特開 平1−263411(JP,A) 実開 昭49−30937(JP,U) (58)調査した分野(Int.Cl.7,DB名) F23H 15/00 F23G 5/00 119 F23G 5/027 ZAB F23G 5/14 ZAB F23G 5/44 ZAB Continued on the front page (51) Int.Cl. 7 Identification code FI F23G 5/44 ZAB F23G 5/44 ZABC (72) Inventor Yuichi Hino 5-717-1 Fukahori-cho, Nagasaki-shi, Nagasaki Engineering Co., Ltd. 56) References JP-A-10-246412 (JP, A) JP-A-55-53615 (JP, A) JP-A-1-263411 (JP, A) Japanese Utility Model Laid-Open No. 49-30937 (JP, U) (58) ) Field surveyed (Int.Cl. 7 , DB name) F23H 15/00 F23G 5/00 119 F23G 5/027 ZAB F23G 5/14 ZAB F23G 5/44 ZAB
Claims (10)
側に二次燃焼室を配置するとともに、該二次燃焼室の熱
ガスの一部を前記火格子を介して一次燃焼室に送給する
ように構成した焼却炉において、前記一次燃焼室外部に燃焼ガス遮断用内蓋を介して廃棄
物を収納するバケット及び該バケットに廃棄物を投入す
る外蓋を具えたごみ投入部を設けるとともに、前記内蓋
を開口した後、前記バケットを介して一次燃焼室内へ廃
棄物を投入可能に構成した 事を特徴とする廃棄物焼却
炉。1. A primary combustion chamber is arranged on the upper side of a grate and a secondary combustion chamber is arranged on a lower side, and a part of hot gas in the secondary combustion chamber is transferred to the primary combustion chamber via the grate. In the incinerator configured to be supplied to the primary combustion chamber, and disposed of via the combustion gas blocking inner lid.
Bucket for storing objects and throwing waste into the bucket
A waste input unit having an outer lid,
After opening, the waste is discharged into the primary combustion chamber through the bucket.
Waste incinerator, characterized in that was introduced configured to be able to wastes.
てその平行な面内を移動する撹拌翼を、又前記火格子に
前記撹拌翼移動方向に沿って延在する熱ガス通路部を夫
々設けるとともに、前記撹拌翼の下面側に前記熱ガス通
路部に侵入する係合部を設け、前記撹拌翼の移動に追従
して前記係合部が前記熱ガス通路部を移動し、該通路部
の付着物を除去可能に構成したことを特徴とする請求項
1記載の廃棄物焼却炉。2. A stirring blade which moves in a plane parallel to the grate in the primary combustion chamber, and a hot gas passage extending to the grate along the moving direction of the stirring blade. Are provided, and an engagement portion is provided on the lower surface side of the stirring blade to enter the hot gas passage portion, and the engagement portion moves in the hot gas passage portion following the movement of the stirring blade, 2. The method according to claim 1 , further comprising the step of removing deposits on the passage.
2. The waste incinerator according to 1 .
が回転方向であり、前記火格子に形成した熱ガス通路部
が円弧若しくはリング円である請求項2記載の廃棄物焼
却炉において、 前記回転翼が火格子中心より半径方向両側に延在する複
数羽根構造であるとともに、該夫々の撹拌羽根の下面側
に火格子側に突設する複数の突設部を設けたことを特徴
とする廃棄物焼却炉。3. The waste incinerator according to claim 2, wherein a moving direction of the rotor blade facing the grate is a rotation direction, and a hot gas passage formed in the grate is an arc or a ring circle. The rotating blades have a multiple blade structure extending radially on both sides from the center of the grate, and a plurality of protrusions projecting toward the grate are provided on the lower surface side of each stirring blade. Waste incinerator.
が回転方向であり、前記火格子に形成した熱ガス通路部
が円弧若しくはリング円である請求項2記載の廃棄物焼
却炉において、 前記回転翼が火格子中心より前記回転翼が火格子中心よ
り半径方向両側に延在する複数羽根構造であるととも
に、該夫々の撹拌羽根の下面側に突設する、前記熱ガス
通路部の係合部が、異なる半径のピッチ円状に位置して
いることを特徴とする請求項2記載の廃棄物焼却炉。4. The waste incinerator according to claim 2, wherein a moving direction of the rotor blade facing the grate is a rotation direction, and a hot gas passage formed in the grate is an arc or a ring. The rotating blade has a multi-blade structure in which the rotating blade extends radially on both sides of the grate center from the center of the grate, and is provided on the lower surface side of each of the stirring blades. The waste incinerator according to claim 2 , wherein the joining portions are located in a pitch circle having different radii.
行な複数のスリットであり、該スリット内に係合部を侵
入させ、該係合部がスリット移動方向に沿って往復移動
する往復移動機構を設けたことを特徴とする請求項2記
載の廃棄物焼却炉。5. A reciprocating device in which a hot gas passage portion formed in the grate is a plurality of parallel slits, an engaging portion is inserted into the slit, and the engaging portion reciprocates along the slit moving direction. The waste incinerator according to claim 2, further comprising a moving mechanism.
側に二次燃焼室を配置するとともに、該二次燃焼室の熱
ガスを前記火格子を介して一次燃焼室に送給するように
構成した焼却炉において、 前記火格子の外側に熱ガス送給部を設けるとともに、該
ガス送給部を構成する通路壁を前記火格子面より一次燃
焼室側に向け上方に延在させ、前記火格子面上に廃棄物
が堆積した状態でも二次燃焼室の熱ガスが一次燃焼室側
に常時送給可能に構成したことを特徴とする廃棄物焼却
炉。6. A primary combustion chamber is disposed on the upper side of the grate and a secondary combustion chamber is disposed on the lower side, and hot gas in the secondary combustion chamber is supplied to the primary combustion chamber via the grate. In the incinerator, a hot gas supply unit is provided outside the grate ,
The primary wall of the passage wall constituting the gas supply section is
The waste is extended upward toward the firing chamber and the waste
The hot gas in the secondary combustion chamber is in the primary combustion chamber even when
A waste incinerator characterized in that it can always be supplied to the incinerator.
第二の火格子を配設するとともに、夫々の火格子に設け
た熱ガス通路部が垂直投影方向において一致しないよう
に位置をずらして開口させたことを特徴とする請求項6
記載の廃棄物焼却炉。7. At the bottom of the secondary combustion chamber below the grate,
7. A method according to claim 6, wherein the second grate is provided and the hot gas passages provided in the respective grate are opened so as to be displaced from each other so that they do not coincide in the vertical projection direction.
The waste incinerator as described.
第二の火格子を配設するとともに、該第二の火格子下方
より二次燃焼室内に冷却用空気が導入される風箱を設け
たことを特徴とする請求項6記載の廃棄物焼却炉。8. At the bottom of the secondary combustion chamber below the grate,
7. A waste incinerator according to claim 6, further comprising a second grate, and a wind box for introducing cooling air into the secondary combustion chamber from below the second grate. .
側に二次燃焼室を配置するとともに、該二次燃焼室の熱
ガスを前記火格子を介して一次燃焼室に送給するように
構成した焼却炉において、 二次燃焼室出口側の炉底を立上げた下側堰を介して均熱
室を設け、該二次燃焼室と均熱室との間を狭域化した絞
り通路を介して連通させたことを特徴とする廃棄物焼却
炉。9. A primary combustion chamber is disposed above the grate and a secondary combustion chamber is disposed below the grate, and hot gas in the secondary combustion chamber is supplied to the primary combustion chamber via the grate. In the incinerator, a soaking chamber is provided via a lower weir that raises the bottom of the secondary combustion chamber at the outlet side, and the area between the secondary combustion chamber and the soaking chamber is narrowed. A waste incinerator characterized in that the waste incinerator is communicated through a narrowed passage.
にセラミック板その他の耐熱材を炉壁両側壁より交互に
水平方向に取り付けて形成した請求項9記載の廃棄物焼
却炉。10. The waste incinerator according to claim 9, wherein a ceramic plate or another heat-resistant material is alternately and horizontally attached to both sides of the furnace wall at an outlet side of the soaking chamber where the chimney is continuously provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10334115A JP3035281B1 (en) | 1998-11-25 | 1998-11-25 | Waste incinerator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10334115A JP3035281B1 (en) | 1998-11-25 | 1998-11-25 | Waste incinerator |
Publications (2)
Publication Number | Publication Date |
---|---|
JP3035281B1 true JP3035281B1 (en) | 2000-04-24 |
JP2000161643A JP2000161643A (en) | 2000-06-16 |
Family
ID=18273700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10334115A Expired - Fee Related JP3035281B1 (en) | 1998-11-25 | 1998-11-25 | Waste incinerator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3035281B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109882868A (en) * | 2019-04-11 | 2019-06-14 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Incinerator is used in a kind of burning of high molecular material |
CN113551233A (en) * | 2021-07-30 | 2021-10-26 | 深圳市绿世纪环境技术有限公司 | Hazardous waste pyrolysis incinerator |
-
1998
- 1998-11-25 JP JP10334115A patent/JP3035281B1/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109882868A (en) * | 2019-04-11 | 2019-06-14 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Incinerator is used in a kind of burning of high molecular material |
CN113551233A (en) * | 2021-07-30 | 2021-10-26 | 深圳市绿世纪环境技术有限公司 | Hazardous waste pyrolysis incinerator |
Also Published As
Publication number | Publication date |
---|---|
JP2000161643A (en) | 2000-06-16 |
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