JP2017166726A - Incinerator - Google Patents

Incinerator Download PDF

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JP2017166726A
JP2017166726A JP2016050628A JP2016050628A JP2017166726A JP 2017166726 A JP2017166726 A JP 2017166726A JP 2016050628 A JP2016050628 A JP 2016050628A JP 2016050628 A JP2016050628 A JP 2016050628A JP 2017166726 A JP2017166726 A JP 2017166726A
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combustion chamber
flue
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incinerator
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JP6694299B2 (en
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幾三郎 太田
Ikusaburo Ota
幾三郎 太田
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佐々木 匡子
Sasaki Kyoko
佐々木 匡子
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Abstract

PROBLEM TO BE SOLVED: To provide a small-sized and simply configured incinerator capable of completely igniting incomplete combustion gas (unburnt gas) when an object to be ignited is ignited in which a less amount of incineration residue is left.SOLUTION: An incinerator comprises a primary combustion chamber; a storing chamber; a secondary combustion chamber; a chimney part; a flue part communicating a lower part of the primary combustion chamber with a lower part of the secondary combustion chamber; a heating part for heating an inside part of the secondary combustion chamber; an air supplying part for supplying air to the secondary combustion chamber; a fire spread blocking part for preventing flowing-in of the object to be ignited fed from the storing chamber into the primary combustion chamber to the flue part; and an incomplete combustion gas recirculation passage where an incomplete combustion gas inlet port is positioned near the upper part in the primary combustion chamber, a ventilation passage is formed from the incomplete combustion gas inlet port along an inner wall of the primary combustion chamber and communicated with the flue part.SELECTED DRAWING: Figure 2

Description

本発明は、焼却炉に関する。   The present invention relates to an incinerator.
一次燃焼室と二次燃焼室を備えた焼却炉が知られている(例えば、特許文献1参照)。
また、ロストル(火格子)を備えた焼却炉が知られている(例えば、特許文献2参照)。
An incinerator having a primary combustion chamber and a secondary combustion chamber is known (see, for example, Patent Document 1).
An incinerator equipped with a rooster (grate) is known (see, for example, Patent Document 2).
特開平11―51367号公報Japanese Patent Laid-Open No. 11-51367 特開昭53−48370号公報JP-A-53-48370
しかしながら、一般的な小型の焼却炉では、例えば、草木や紙質系の有機物などの被燃焼物を燃焼させた場合、比較的大量の焼却残滓が燃焼室の下部に堆積する。この焼却により生じた残滓を、関係官庁等に報告の上、認可施設に運搬して処理することを要する。   However, in a general small incinerator, for example, when a combusted material such as vegetation or paper-based organic matter is burned, a relatively large amount of incineration residue accumulates in the lower part of the combustion chamber. Residues generated by this incineration need to be reported to the relevant government offices and transported to an authorized facility for processing.
また、不完全燃焼を原因とする発煙や有害ガスなどが焼却炉の外へ流出することを防ぐために、例えば、特許文献1に示したように、不完全燃焼ガスを完全に燃焼させる二次燃焼室を設けた焼却炉が知られているが、複雑な構成であり、焼却炉が高価である。   Further, in order to prevent fuming or harmful gas caused by incomplete combustion from flowing out of the incinerator, for example, as shown in Patent Document 1, secondary combustion that completely burns incomplete combustion gas is performed. Although an incinerator with a chamber is known, it has a complicated configuration and is expensive.
本発明の焼却炉は、少なくとも以下の構成を具備するものである。
室内下部にロストル(火格子)が配置され、耐火材で形成された筒形状の炉壁を備える一次燃焼室と、
前記一次燃焼室の上部に設けられ、被燃焼物を前記一次燃焼室へ投入可能な収納室と、
前記一次燃焼室に対して並設され、耐火材で形成された筒形状の炉壁を備える二次燃焼室と、
前記二次燃焼室の上部に設けられた煙突部と、
前記一次燃焼室の下部と前記二次燃焼室の下部を連通する煙道部と、
前記二次燃焼室の室内を加熱し、前記一次燃焼室から前記煙道部を介して前記二次燃焼室に導入される不完全燃焼ガスを完全燃焼させる加熱部と、
前記二次燃焼室に空気を供給する空気供給部と、を有する焼却炉であって、
前記煙道部の一次燃焼室側吸気口から前記一次燃焼室の室内側に向かって突出した突出部を備え、当該突出部により前記収納室から前記一次燃焼室内へ投入された被燃焼物の前記煙道部への流入を防ぐ延焼遮断部と、
不完全燃焼ガス用吸気口が前記一次燃焼室内の上部付近に位置し、当該不完全燃焼ガス用吸気口から前記一次燃焼室の内壁に沿って通気路が形成され、前記煙道部に連通する不完全燃焼ガス還流路と、を有することを特徴とする。
The incinerator of the present invention has at least the following configuration.
A primary combustion chamber provided with a cylindrical furnace wall formed with a rooster (grate) at the lower part of the room and formed of a refractory material;
A storage chamber provided in an upper portion of the primary combustion chamber and capable of charging a combustible into the primary combustion chamber;
A secondary combustion chamber provided in parallel with the primary combustion chamber and provided with a cylindrical furnace wall formed of a refractory material;
A chimney provided in the upper part of the secondary combustion chamber;
A flue section communicating with a lower portion of the primary combustion chamber and a lower portion of the secondary combustion chamber;
A heating unit that heats the interior of the secondary combustion chamber and completely burns incomplete combustion gas introduced from the primary combustion chamber into the secondary combustion chamber through the flue portion;
An incinerator having an air supply unit for supplying air to the secondary combustion chamber,
A projecting portion projecting from the primary combustion chamber side intake port of the flue portion toward the indoor side of the primary combustion chamber, and the combusted material introduced into the primary combustion chamber from the storage chamber by the projecting portion; A fire spread block to prevent inflow into the flue,
An incomplete combustion gas intake port is located near the upper portion of the primary combustion chamber, and a ventilation path is formed along the inner wall of the primary combustion chamber from the incomplete combustion gas intake port, and communicates with the flue portion. And an incomplete combustion gas recirculation path.
本発明によれば、被燃焼物を焼却する際に、不完全燃焼ガス(未燃焼ガス)を完全に燃焼可能で、残滓の少ない、小型で簡単な構成の焼却炉を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, when incinerating a to-be-combusted material, the incinerator of a small and simple structure which can burn incomplete combustion gas (unburned gas) completely, has few residues, can be provided.
本発明の実施形態に係る焼却炉の概念図。The conceptual diagram of the incinerator which concerns on embodiment of this invention. 本発明の実施形態に係る焼却炉の一例を示す断面図。Sectional drawing which shows an example of the incinerator which concerns on embodiment of this invention. 本発明の実施形態に係る焼却炉の一例を説明するための部分断面斜視図。The partial cross section perspective view for demonstrating an example of the incinerator which concerns on embodiment of this invention. 本発明の実施形態に係る焼却炉の一例を説明するための上面図。The top view for demonstrating an example of the incinerator concerning the embodiment of the present invention. 図4に示した焼却炉のA−A線に沿った断面図。Sectional drawing along the AA line of the incinerator shown in FIG. 本発明の実施形態に係る焼却炉の一次燃焼室と収納室の間の仕切り部分を説明するための概念図。The conceptual diagram for demonstrating the partition part between the primary combustion chamber of the incinerator which concerns on embodiment of this invention, and a storage chamber. 本発明の実施形態に係る焼却炉の二次燃焼室の一例を説明するための図、(a)は二次燃焼室の断面図、(b)は図7(a)のB−B線に沿った断面図。The figure for demonstrating an example of the secondary combustion chamber of the incinerator which concerns on embodiment of this invention, (a) is sectional drawing of a secondary combustion chamber, (b) is the BB line of Fig.7 (a). FIG. 焼却炉の温度調整部(温度調整板)の一例を説明するための図、(a)は二次燃焼室付近の上面図、(b)は温度調整板が開状態の場合を示す概念図、(c)は温度調整板が閉状態の場合を示す概念図。The figure for demonstrating an example of the temperature adjustment part (temperature adjustment board) of an incinerator, (a) is a top view near a secondary combustion chamber, (b) is a conceptual diagram which shows the case where a temperature adjustment board is an open state, (C) is a conceptual diagram which shows the case where a temperature control board is a closed state.
本発明の実施形態に係る焼却炉は、室内下部にロストル(火格子)が配置され、耐火材で形成された筒形状の炉壁を備える一次燃焼室と、一次燃焼室の上部に設けられ、被燃焼物を一次燃焼室へ投入可能な収納室と、一次燃焼室に対して並設され、耐火材で形成された筒形状の炉壁を備える二次燃焼室と、二次燃焼室の上部に設けられた煙突部と、一次燃焼室の下部と二次燃焼室の下部を連通する煙道部と、二次燃焼室の室内を加熱し、一次燃焼室から煙道部を介して二次燃焼室に導入される不完全燃焼ガスを完全燃焼させる加熱部と、二次燃焼室に空気を供給する空気供給部と、を有する。また、この焼却炉は、煙道部の一次燃焼室側吸気口から一次燃焼室の室内側に向かって突出した突出部を備え、当該突出部により収納室から一次燃焼室内へ投入された被燃焼物の煙道部への流入を防ぐ延焼遮断部と、不完全燃焼ガス用吸気口が一次燃焼室内の上部付近に位置し、当該不完全燃焼ガス用吸気口から一次燃焼室の内壁に沿って通気路が形成され、煙道部に連通する不完全燃焼ガス還流路と、を有する。   The incinerator according to the embodiment of the present invention is provided with a roastol (grate) in the lower part of the room, a primary combustion chamber provided with a cylindrical furnace wall formed of a refractory material, and an upper part of the primary combustion chamber, A storage chamber in which combustibles can be introduced into the primary combustion chamber, a secondary combustion chamber provided in parallel with the primary combustion chamber and having a cylindrical furnace wall formed of a refractory material, and an upper portion of the secondary combustion chamber The chimney provided in the main combustion chamber, the flue portion communicating with the lower portion of the primary combustion chamber and the lower portion of the secondary combustion chamber, and the interior of the secondary combustion chamber are heated, and the secondary passage from the primary combustion chamber through the flue portion A heating unit that completely burns incomplete combustion gas introduced into the combustion chamber; and an air supply unit that supplies air to the secondary combustion chamber. Further, the incinerator includes a protruding portion that protrudes from the primary combustion chamber side intake port of the flue portion toward the indoor side of the primary combustion chamber, and is combusted by the protruding portion that is introduced from the storage chamber into the primary combustion chamber. A fire spread block that prevents inflow of objects into the flue and an inlet for incomplete combustion gas are located near the upper part of the primary combustion chamber and extend along the inner wall of the primary combustion chamber from the incomplete combustion gas inlet A ventilation path is formed, and an incomplete combustion gas recirculation path communicating with the flue portion is included.
以下、本発明の実施形態に係る焼却炉の一例を、図面を参照しながら説明する。本発明の実施形態は図示の内容を含むが、これのみに限定されるものではない。尚、以後の各図の説明で、既に説明した部位と共通する部分は同一符号を付して重複説明を一部省略する。   Hereinafter, an example of an incinerator according to an embodiment of the present invention will be described with reference to the drawings. The embodiment of the present invention includes the contents shown in the drawings, but is not limited to this. In the following description of each drawing, the same parts as those already described are denoted by the same reference numerals, and a part of the overlapping description is omitted.
図1、図2、図3、図4に示したように、本発明の実施形態に係る焼却炉10は、一次燃焼室1(一号炉)、二次燃焼室2(二号炉)、収納室3(収納庫)、一次燃焼室1と二次燃焼室2を連通する煙道部4、煙突部21、などを有する。焼却炉10では、パイプなどの部材で架台枠101が形成され、耐熱コンクリートなどの耐熱材から成る基礎部102が形成されている。基礎部102上に、筒状の一次燃焼室1と筒状の二次燃焼室が並設されている。   As shown in FIGS. 1, 2, 3, and 4, the incinerator 10 according to the embodiment of the present invention includes a primary combustion chamber 1 (No. 1 furnace), a secondary combustion chamber 2 (No. 2 furnace), It has a storage chamber 3 (storage), a flue portion 4 that communicates the primary combustion chamber 1 and the secondary combustion chamber 2, a chimney portion 21, and the like. In the incinerator 10, a frame 101 is formed of a member such as a pipe, and a base portion 102 made of a heat resistant material such as heat resistant concrete is formed. A cylindrical primary combustion chamber 1 and a cylindrical secondary combustion chamber are arranged side by side on the base portion 102.
一次燃焼室1は、耐火材で形成された筒形状の炉壁1aを有する。一次燃焼室1の室内下部にはロストル11(火格子)が配置されている。一次燃焼室1の正面側には管理口19や灰出口18が形成され、それぞれ扉191,181が形成されている。管理口19や灰出口18は、外部から一次燃焼室1への吸気口として機能し、扉191,181の開閉や開口量により、吸気量を調整可能に構成されている。一次燃焼室1の上部には収納室3(収納庫)が設けられている。   The primary combustion chamber 1 has a cylindrical furnace wall 1a formed of a refractory material. A rooster 11 (grate) is disposed in the lower part of the primary combustion chamber 1. A management port 19 and an ash outlet 18 are formed on the front side of the primary combustion chamber 1, and doors 191 and 181 are formed, respectively. The management port 19 and the ash outlet 18 function as an intake port to the primary combustion chamber 1 from the outside, and are configured such that the intake air amount can be adjusted by opening / closing and opening amounts of the doors 191 and 181. A storage chamber 3 (storage) is provided above the primary combustion chamber 1.
収納室3は、正面側に開閉自在な扉301が設けられている。収納室3と一次燃焼室1との間には、必要に応じて開閉自在な底板30が設けられている。収納室3は一時的に被燃焼物Bを収納可能に構成されている。扉301を閉めた状態で底板30を開状態とした場合、外気と遮断した状態で、収納室3から一次燃焼室1へ被燃焼物Bを投入することができる。   The storage chamber 3 is provided with a door 301 that can be opened and closed on the front side. Between the storage chamber 3 and the primary combustion chamber 1, a bottom plate 30 that can be opened and closed as necessary is provided. The storage chamber 3 is configured to temporarily store the combustible B. When the bottom plate 30 is opened with the door 301 closed, the combustible B can be introduced from the storage chamber 3 into the primary combustion chamber 1 while being shut off from outside air.
二次燃焼室2は、一次燃焼室1に対して並設され、耐火材で形成された筒形状の炉壁2aを有する。本実施形態では、二次燃焼は円筒形状に形成されている。二次燃焼室2の上部には、煙突部21が設けられている。二次燃焼室2の背面側には、管理口29と扉291が設けられている。また、二次燃焼室2と一次燃焼室1は、それぞれの下部に設けられた煙道部4により連通するように構成されている。
また、二次燃焼室2は、その室内に空気を供給する空気供給部6としての空気供給管23が設けられている。空気供給管23は、筒形状に形成され、二次燃焼室2の底部から煙突部21へ向けて立設している。二次燃焼室2の底部の基礎部102には通気路61が形成され、二次燃焼室2の外部に設けられた空気供給源としての送風機6A(ブロワー)と空気供給管23とが連通した構造となっている。詳細には、この通気路61は、縦孔61aと横孔61bで構成され、縦孔61a上に空気供給管23が配置されている。
空気供給管23の下部付近に複数の孔部23aが形成され、中央部付近に複数の孔部23bが形成され、上部付近に複数の孔部23cが形成されている。送風機6Aの送風により、孔部23a、23b、23cから空気が二次燃焼室2内に噴出して供給される。
The secondary combustion chamber 2 has a cylindrical furnace wall 2a that is juxtaposed to the primary combustion chamber 1 and formed of a refractory material. In the present embodiment, the secondary combustion is formed in a cylindrical shape. A chimney 21 is provided in the upper part of the secondary combustion chamber 2. A management port 29 and a door 291 are provided on the back side of the secondary combustion chamber 2. Moreover, the secondary combustion chamber 2 and the primary combustion chamber 1 are comprised so that it may communicate with the flue part 4 provided in each lower part.
The secondary combustion chamber 2 is provided with an air supply pipe 23 as an air supply unit 6 for supplying air into the chamber. The air supply pipe 23 is formed in a cylindrical shape, and stands up from the bottom of the secondary combustion chamber 2 toward the chimney 21. An air passage 61 is formed in the base portion 102 at the bottom of the secondary combustion chamber 2, and a blower 6 </ b> A (blower) provided as an air supply source provided outside the secondary combustion chamber 2 communicates with the air supply pipe 23. It has a structure. Specifically, the ventilation path 61 is constituted by a vertical hole 61a and a horizontal hole 61b, and the air supply pipe 23 is disposed on the vertical hole 61a.
A plurality of holes 23a are formed near the lower portion of the air supply pipe 23, a plurality of holes 23b are formed near the center, and a plurality of holes 23c are formed near the upper portion. Air is blown into the secondary combustion chamber 2 from the holes 23a, 23b, and 23c by the blower 6A.
二次燃焼室2内には、温度センサなどの温度検出部51が設けられ、二次燃焼室2内の温度が検出される。
バーナーなどの加熱部5は、二次燃焼室2に設けられ、二次燃焼室2内を加熱する。
制御部52は、温度検出部51から入力された、二次燃焼室2の室内温度(炉内温度)を示す信号に基づいて加熱部5を駆動制御する。本実施形態では、焼却炉稼働時に、二次燃焼室2内の温度を800℃〜850℃程度とするように、制御部52が設定されている。燃焼状態や被燃焼物の種類などに応じて、二次燃焼室の炉内温度を適宜設定可能に構成されている。
つまり、加熱部5により二次燃焼室2の室内を高温状態(例えば、800℃〜850℃程度)とした場合、一次燃焼室1から煙道部4を介して二次燃焼室2に導入される不完全燃焼ガスを完全燃焼させることができる。
A temperature detection unit 51 such as a temperature sensor is provided in the secondary combustion chamber 2 to detect the temperature in the secondary combustion chamber 2.
A heating unit 5 such as a burner is provided in the secondary combustion chamber 2 and heats the inside of the secondary combustion chamber 2.
The control unit 52 drives and controls the heating unit 5 based on a signal that is input from the temperature detection unit 51 and indicates the indoor temperature (furnace temperature) of the secondary combustion chamber 2. In the present embodiment, the control unit 52 is set so that the temperature in the secondary combustion chamber 2 is about 800 ° C. to 850 ° C. during operation of the incinerator. The furnace temperature in the secondary combustion chamber can be appropriately set according to the combustion state, the type of the combusted material, and the like.
That is, when the interior of the secondary combustion chamber 2 is brought into a high temperature state (for example, about 800 ° C. to 850 ° C.) by the heating unit 5, the secondary combustion chamber 2 is introduced from the primary combustion chamber 1 into the secondary combustion chamber 2 through the flue portion 4. Incomplete combustion gas can be burned completely.
また、二次燃焼室2には、炉壁2aの周囲を取り囲むように断熱材27が設けられており、二次燃焼室2と外部との間を断熱状態としている。また、二次燃焼室2と一次燃焼室1との間には、中間仕切板105が設けられ、一次燃焼室1と二次燃焼室2とを断熱状態としている。   In addition, a heat insulating material 27 is provided in the secondary combustion chamber 2 so as to surround the furnace wall 2a, and the space between the secondary combustion chamber 2 and the outside is in a heat insulating state. Further, an intermediate partition plate 105 is provided between the secondary combustion chamber 2 and the primary combustion chamber 1, and the primary combustion chamber 1 and the secondary combustion chamber 2 are insulative.
二次燃焼室2の上部の煙突部21に温度調整部25が設けられている。温度調整部25の具体的な構成については後述する。   A temperature adjustment unit 25 is provided in the chimney 21 at the top of the secondary combustion chamber 2. A specific configuration of the temperature adjustment unit 25 will be described later.
一次燃焼室1と二次燃焼室2の下部は煙道部4により連通された構造を有する。煙道部4の一次燃焼室側吸気口4aには、延焼遮断部7が設けられている。延焼遮断部7は、煙道部4の一次燃焼室側吸気口4aから一次燃焼室1の室内側に向かって突出した突出部7aを備える。延焼遮断部7は、この突出部7aにより収納室3から一次燃焼室1内へ投入された被燃焼物Bの煙道部4への流入を防ぐことができる。
また、本実施形態では、煙道部4から一次燃焼室1の室内側へ突出した突出部7aは、筒形状に形成されており、その側面に開口部7cを有する。この開口部7cは煙道部4の吸気口として機能するように構成されており、煙道部4の吸気量が多い構造となっている。
また、基礎部102に傾斜部102kが形成され、一次燃焼室側吸気口4a,4b,4cよりも二次燃焼室側排出口4eの流路断面積が小さくなるように形成されている
The lower portions of the primary combustion chamber 1 and the secondary combustion chamber 2 have a structure in which they are communicated by a flue portion 4. In the primary combustion chamber side intake port 4a of the flue section 4, a fire spread blocking section 7 is provided. The fire spread blocking unit 7 includes a protruding portion 7 a that protrudes from the primary combustion chamber side intake port 4 a of the flue portion 4 toward the indoor side of the primary combustion chamber 1. The fire spread blocking unit 7 can prevent the inflow of the combustible B introduced into the primary combustion chamber 1 from the storage chamber 3 into the flue portion 4 by the protrusion 7a.
Moreover, in this embodiment, the protrusion part 7a which protruded from the flue part 4 to the indoor side of the primary combustion chamber 1 is formed in the cylinder shape, and has the opening part 7c in the side surface. The opening 7c is configured to function as an intake port of the flue section 4, and has a structure in which the intake amount of the flue section 4 is large.
In addition, an inclined portion 102k is formed in the base portion 102 so that the flow passage cross-sectional area of the secondary combustion chamber side exhaust port 4e is smaller than that of the primary combustion chamber side intake ports 4a, 4b, 4c.
不完全燃焼ガス還流路8(未燃焼ガス還流路)は、不完全燃焼ガス用吸気口8aが一次燃焼室1の室内の上部付近に位置し、当該不完全燃焼ガス用吸気口8aから一次燃焼室1の内壁(二次燃焼室側)に沿って通気路8tが形成され、煙道部4に連通する構造を有する。詳細には、煙道部4の筒状部の上部4tに不完全燃焼ガス還流路8の出力口8eが形成されている。本実施形態では、延焼遮断部7の突出部7aの上部に、不完全燃焼ガス還流路8の出力口8eが形成されている。
焼却炉稼働時、一次燃焼室1の上部の不完全燃焼ガスは、不完全燃焼ガス用吸気口8a、通気路8t、出力口8eを介して煙道部4に流れる。
In the incomplete combustion gas recirculation path 8 (uncombusted gas recirculation path), the incomplete combustion gas intake port 8a is located near the upper portion of the primary combustion chamber 1, and the primary combustion is performed from the incomplete combustion gas intake port 8a. An air passage 8t is formed along the inner wall (secondary combustion chamber side) of the chamber 1, and has a structure communicating with the flue section 4. Specifically, an output port 8 e of the incomplete combustion gas recirculation path 8 is formed in the upper portion 4 t of the cylindrical portion of the flue portion 4. In the present embodiment, an output port 8 e of the incomplete combustion gas recirculation path 8 is formed on the upper portion of the protruding portion 7 a of the fire spread blocking portion 7.
During operation of the incinerator, the incomplete combustion gas in the upper part of the primary combustion chamber 1 flows to the flue section 4 via the incomplete combustion gas intake port 8a, the air passage 8t, and the output port 8e.
不完全燃焼ガス用還流管9(ダクト還流管)は、収納室3から一次燃焼室1の外部を通って煙道部4に連通する通気路を有する。本実施形態では、不完全燃焼ガス用還流管9は、収納室3の背面側に吸気口9aが形成され、煙道部4の筒状部の上部4tに出力口9eが形成されている。焼却炉稼働時、収納室3内の不完全燃焼ガスは、不完全燃焼ガス用還流管9の吸気口9a、連通路、出力口9eを介して煙道部4に流れる。   The incomplete combustion gas recirculation pipe 9 (duct recirculation pipe) has an air passage that communicates with the flue portion 4 from the storage chamber 3 through the outside of the primary combustion chamber 1. In the present embodiment, the incomplete combustion gas recirculation pipe 9 has an intake port 9 a formed on the back side of the storage chamber 3, and an output port 9 e formed on the upper portion 4 t of the cylindrical portion of the flue section 4. During operation of the incinerator, the incomplete combustion gas in the storage chamber 3 flows to the flue section 4 through the intake port 9a, the communication path, and the output port 9e of the incomplete combustion gas recirculation pipe 9.
<ロストル11>
図5に示したように、一次燃焼室1の下部にロストル11が設けられている。詳細には、筒状の一次燃焼室1内、基礎部102には、凹部102Uが形成されており、凹部102Uに上部ロストル11A(11)と下部ロストル11B(11)が配置されている。この凹部102Uは、煙道部4としても機能する。また、図2に示したように、上部ロストル11A(11)と、下部ロストル11B(11)との間は、煙道部4に連通した構造となっており、上部ロストル11A(11)と下部ロストル11B(11)に煙道部4の吸気口4bが設けられている。また、本実施形態では、下部ロストル11B(11)の下方には、煙道部4に連通する空間が形成されており、下部ロストル11B(11)の下方に煙道部4の吸気口4cが設けられている。
<Lostre 11>
As shown in FIG. 5, a rooster 11 is provided in the lower part of the primary combustion chamber 1. Specifically, a concave portion 102U is formed in the base portion 102 in the cylindrical primary combustion chamber 1, and an upper rooster 11A (11) and a lower rooster 11B (11) are disposed in the concave portion 102U. The concave portion 102U also functions as the flue portion 4. In addition, as shown in FIG. 2, the upper rooster 11A (11) and the lower rooster 11B (11) are connected to the flue section 4, and the upper rooster 11A (11) and the lower rooster 11B (11) The air inlet 4b of the flue section 4 is provided in the rooster 11B (11). In the present embodiment, a space communicating with the flue section 4 is formed below the lower rooster 11B (11), and the air inlet 4c of the flue section 4 is formed below the lower rooster 11B (11). Is provided.
本実施形態では、上部ロストル11A(11)と比較して、下部ロストル11B(11)は隙間が狭く形成されているので、例えば、燃焼時に小さくなった被燃焼物が上部ロストル11A(11)から下部ロストル11B(11)へ落下移動して、下部ロストル11B(11)上で空気に触れやすい状態で効率よく燃焼して完全に灰になる。本実施形態では、上部ロストル11A(11)の複数の棒状部の隙間は50mm程度であり、下部ロストル11B(11)の複数の棒状部の隙間は20mm程度である。
尚、ロストルは任意の形状であってよく、例えば、格子形状であってもよく、また、図2,3,4,5に示したように、複数の棒状部が所定の間隔で配置されていてもよい。また、凹部102Uに架設した部材11Ba上にロストルを配置してもよい。
尚、この凹部102Uにおいて、下部ロストル11B(11)の下部分には焼却灰が溜まるので、定期的または所定のタイミングで、灰出口1e(図2参照)から焼却灰を取り除くことが好ましい。
In this embodiment, since the gap is formed narrower in the lower rooster 11B (11) than in the upper rooster 11A (11), for example, the combustible that has become smaller during combustion is removed from the upper rooster 11A (11). It falls to the lower rooster 11B (11) and burns efficiently in a state where it is easy to touch the air on the lower rooster 11B (11), and becomes completely ash. In the present embodiment, the gap between the plurality of rod-shaped portions of the upper rooster 11A (11) is about 50 mm, and the gap between the plurality of rod-shaped portions of the lower rooster 11B (11) is about 20 mm.
The rooster may have an arbitrary shape, for example, a lattice shape, and a plurality of rod-shaped portions are arranged at predetermined intervals as shown in FIGS. May be. In addition, a rooster may be arranged on the member 11Ba installed in the recess 102U.
In addition, in this recessed part 102U, since incineration ash accumulates in the lower part of lower rooster 11B (11), it is preferable to remove incineration ash from ash outlet 1e (refer to Drawing 2) regularly or at a predetermined timing.
<収納室3(収納庫)の底板>
上述したように、一次燃焼室1上に収納室3が設けられている。収納室3は、正面側に開閉扉(不図示)が設けられており、収納室3内に木片、枝、紙類などの被燃焼物Bを一時的に収納可能に構成されている。この収納室3の底板30(一次燃焼室の天板)は、必要に応じて開閉自在に構成されている。
<Bottom plate of storage chamber 3 (storage)>
As described above, the storage chamber 3 is provided on the primary combustion chamber 1. The storage chamber 3 is provided with an open / close door (not shown) on the front side, and is configured to be able to temporarily store a combustible B such as a piece of wood, a branch, or paper in the storage chamber 3. The bottom plate 30 of the storage chamber 3 (the top plate of the primary combustion chamber) is configured to be openable and closable as required.
図6に示したように、本実施形態では、収納室3の底板30は、2つの底板31,32を有し、この底板31,32の端部付近が支持軸311,321により回転自在に軸支されている。被燃焼物Bを収納室3内へ収納時、底板31,32は、ロック機構(不図示)により図6に示したように閉状態となっている。また、被燃焼物Bを収納室3から一次燃焼室1内へ投入する時、ロック機構を解除し、底板31,32が開状態となり、被燃焼物が収納室3から一次燃焼室1へ投入される。
また、焼却炉は、一次燃焼室1に被燃焼物Bが投入された場合であっても、一次燃焼室1の上部に空間が確保され、不完全燃焼ガス還流路8の吸気口8aが塞がれず、煙道部4の吸気口側に設けられた延焼遮断部7の突出部7aにより、煙道部4の通気路を確保するように構成されている。
As shown in FIG. 6, in this embodiment, the bottom plate 30 of the storage chamber 3 has two bottom plates 31, 32, and the vicinity of the end portions of the bottom plates 31, 32 can be freely rotated by support shafts 311, 321. It is pivotally supported. When the combustible B is stored in the storage chamber 3, the bottom plates 31 and 32 are closed as shown in FIG. 6 by a lock mechanism (not shown). When the combustible B is introduced from the storage chamber 3 into the primary combustion chamber 1, the lock mechanism is released, the bottom plates 31 and 32 are opened, and the combustible is input from the storage chamber 3 to the primary combustion chamber 1. Is done.
Further, the incinerator has a space in the upper part of the primary combustion chamber 1 even when the combustible B is put into the primary combustion chamber 1, and the intake port 8a of the incomplete combustion gas recirculation path 8 is blocked. The air passage of the flue portion 4 is secured by the protruding portion 7a of the fire spread blocking portion 7 provided on the air inlet side of the flue portion 4 without escaping.
被燃焼物Bの投入後、例えば、底板31,32に設けられたハンドル(不図示)を回転させることにより、図6に示したように、底板31,32を閉状態とし、ロック機構によりロックする。   After the combustible B is introduced, for example, by rotating a handle (not shown) provided on the bottom plates 31 and 32, the bottom plates 31 and 32 are closed as shown in FIG. To do.
また、収納室3と一次燃焼室1との間に設けられた底板31,32が閉じた状態であっても隙間が空いている場合、焼却炉稼働時に発生する不完全燃焼ガス(未燃焼ガス)の一部分が、一次燃焼室1から収納室3へ流入することがある。また、外気と遮断された状態で、収納室3から一次燃焼室1へ被燃焼物を投入する際に、底板31,32を開状態とした場合、収納室3から一次燃焼室1へ不完全燃焼ガスが流入することがある。本実施形態では、収納室3と煙道部4とを連通する不完全燃焼ガス用還流管9が設けられており、二次燃焼室2の上昇気流により、収納室3内の不完全燃焼ガスが不完全燃焼ガス用還流管9の吸気口9aから煙道部4へ流入する。すなわち、収納室3や一次燃焼室1から不完全燃焼ガスが焼却炉の外部へ漏れることがない。また、焼却炉稼働時、収納室3の正面側に形成された扉301を開状態とした場合であっても、収納室3の室内の不完全燃焼ガスが外部へ漏れることがない。   In addition, even when the bottom plates 31 and 32 provided between the storage chamber 3 and the primary combustion chamber 1 are closed, if there is a gap, incomplete combustion gas (unburned gas) generated when the incinerator is operating. ) May flow into the storage chamber 3 from the primary combustion chamber 1. Further, when the bottom plates 31 and 32 are opened when the combustible material is introduced from the storage chamber 3 to the primary combustion chamber 1 while being blocked from the outside air, the storage chamber 3 is incompletely transferred to the primary combustion chamber 1. Combustion gas may enter. In this embodiment, an incomplete combustion gas recirculation pipe 9 that communicates between the storage chamber 3 and the flue section 4 is provided, and the incomplete combustion gas in the storage chamber 3 is generated by the rising airflow in the secondary combustion chamber 2. Flows into the flue section 4 from the inlet 9a of the incomplete combustion gas recirculation pipe 9. That is, incomplete combustion gas does not leak from the storage chamber 3 or the primary combustion chamber 1 to the outside of the incinerator. In addition, even when the door 301 formed on the front side of the storage chamber 3 is opened when the incinerator is in operation, incomplete combustion gas in the storage chamber 3 does not leak to the outside.
尚、収納室3の底板、ロック機構、ハンドルなどは上記形態に限られるものではなく、外気と遮断された状態で、必要に応じて所定の量の被燃焼物を収納室3から一次燃焼室1へ投入することができれば、任意の構造であってもよい。   The bottom plate, the lock mechanism, the handle and the like of the storage chamber 3 are not limited to the above-described form, and a predetermined amount of combustible material is transferred from the storage chamber 3 to the primary combustion chamber as necessary while being shut off from the outside air. Any structure may be used as long as it can be charged to 1.
<火炎調整板24>
一次燃焼室1から煙道部を介して二次燃焼室2(2号炉)内に流入した上昇気流(ガス)は、二次燃焼室2の一次燃焼室側(1号炉側)に偏る場合がある。図7に示したように、二次燃焼室2内に火炎調整板24を設けてもよい。火炎調整板24は、煙道部から二次燃焼室2に流入するガスの流れを乱し(阻害し)、二次燃焼室内に上昇気流を均一に分布させる。
<Flame adjustment plate 24>
The ascending airflow (gas) flowing into the secondary combustion chamber 2 (No. 2 furnace) from the primary combustion chamber 1 through the flue portion is biased toward the primary combustion chamber side (No. 1 furnace side) of the secondary combustion chamber 2. There is a case. As shown in FIG. 7, a flame adjustment plate 24 may be provided in the secondary combustion chamber 2. The flame adjustment plate 24 disturbs (inhibits) the flow of gas flowing into the secondary combustion chamber 2 from the flue portion, and uniformly distributes the updraft in the secondary combustion chamber.
本実施形態では、火炎調整板24は、二次燃焼室2内において、空気供給管23よりも一次燃焼室側(1号炉側)に、且つ、煙道部4の出口の上方近傍位置に配置されている。詳細には、火炎調整板24は、金属製の取付具24kにより固定されている。火炎調整板24は、円形、矩形板など、任意の形状であってもよい。また、火炎調整板24に、所定の形状の一つ又は複数の通気孔、本実施形態では、火炎調整板24に通気孔24a、24b、24cが設けられていている。
この火炎調整板24は、煙道部4から二次燃焼室2に流入した火炎の上昇の一部分を阻害し、火炎を炉内に均等に分布させる。
また、火炎調整板24により火炎の勢いを弱めた状態で、空気供給管23の中央部に形成された孔部23bや、上部付近に形成された孔部23cから空気を供給する状態(迎え酸素供給の状態)とすることにより、二次燃焼室内で混合ガスを高い燃焼効率で完全燃焼させることができる。
In the present embodiment, the flame adjustment plate 24 is located closer to the primary combustion chamber side (No. 1 furnace side) than the air supply pipe 23 in the secondary combustion chamber 2 and at a position near the upper side of the outlet of the flue section 4. Has been placed. Specifically, the flame adjustment plate 24 is fixed by a metal fixture 24k. The flame adjustment plate 24 may have an arbitrary shape such as a circular shape or a rectangular plate. Further, the flame adjusting plate 24 is provided with one or a plurality of vent holes having a predetermined shape, and in the present embodiment, the flame adjusting plate 24 is provided with vent holes 24a, 24b, and 24c.
The flame adjusting plate 24 inhibits a part of the rise of the flame flowing into the secondary combustion chamber 2 from the flue section 4 and distributes the flame evenly in the furnace.
Further, in a state in which the flame is weakened by the flame adjusting plate 24, air is supplied from the hole 23b formed in the central portion of the air supply pipe 23 or the hole 23c formed near the upper portion (greeting oxygen) In this state, the mixed gas can be completely burned with high combustion efficiency in the secondary combustion chamber.
図7(a)に示したように、二次燃焼室2内に設けられた空気供給管23は、基礎部102に形成された通気路61に連通するように設けられている。また、本実施形態では、通気路61にL字形状管65(エルボ管)が配置され、そのL字形状管65に空気供給管23が着脱自在に設けられている。この空気供給管23は、二次燃焼室2の背面側に設けられた管理口29から出し入れ可能に構成されている。   As shown in FIG. 7A, the air supply pipe 23 provided in the secondary combustion chamber 2 is provided so as to communicate with an air passage 61 formed in the base portion 102. In the present embodiment, an L-shaped tube 65 (elbow tube) is disposed in the air passage 61, and the air supply tube 23 is detachably provided on the L-shaped tube 65. The air supply pipe 23 is configured to be able to be taken in and out from a management port 29 provided on the back side of the secondary combustion chamber 2.
また、図7(b)に示したように、二次燃焼室2の内壁の耐久性を高めるために、二次燃焼室2の内壁にステンレスなどの金属製の筒状部2fを交換可能に設けてもよい。例えば、二次燃焼室の内壁の金属製の筒状部2fが劣化した場合、新しい金属製の筒状部2fに交換することにより、焼却炉をさらに長期に使用することができる。   Further, as shown in FIG. 7B, in order to increase the durability of the inner wall of the secondary combustion chamber 2, a cylindrical portion 2f made of metal such as stainless steel can be replaced on the inner wall of the secondary combustion chamber 2. It may be provided. For example, when the metallic cylindrical portion 2f on the inner wall of the secondary combustion chamber is deteriorated, the incinerator can be used for a longer period of time by replacing it with a new metallic cylindrical portion 2f.
<温度調整部25>
図8に示したように、本発明の実施形態に係る焼却炉は、二次燃焼室2の上部の煙突部21に温度調整部25が設けられている。この温度調整部25は、焼却炉の初期稼働時に、二次燃焼室2の炉内(室内)温度を早期に上昇させて、短時間で上昇気流を発生させるために設けられている。
詳細には、温度調整部25は、煙突部21の入口付近に設けられ、可動部材251,252を有する(図8(b)、図8(c))。二次燃焼室2の上面に、金属製の底部台プレート26cが配置され、底部台プレート26cの上に金属製の中間ガイド部材26bが配置され、中間ガイド部材26bの上に金属製の上部蓋鉄板26aが配置されている。
中間ガイド部材26bには隙間25bhが形成されており、その隙間25bhに可動部材251,252が移動自在に配置されている。
<Temperature adjustment unit 25>
As shown in FIG. 8, in the incinerator according to the embodiment of the present invention, the temperature adjustment unit 25 is provided in the chimney portion 21 in the upper part of the secondary combustion chamber 2. This temperature adjustment unit 25 is provided to raise the temperature in the furnace (indoor) of the secondary combustion chamber 2 at an early stage during the initial operation of the incinerator and to generate an updraft in a short time.
Specifically, the temperature adjustment unit 25 is provided in the vicinity of the entrance of the chimney unit 21 and includes movable members 251 and 252 (FIGS. 8B and 8C). A metal bottom base plate 26c is disposed on the upper surface of the secondary combustion chamber 2, a metal intermediate guide member 26b is disposed on the bottom base plate 26c, and a metal upper lid is disposed on the intermediate guide member 26b. An iron plate 26a is arranged.
A gap 25bh is formed in the intermediate guide member 26b, and movable members 251 and 252 are movably disposed in the gap 25bh.
初期時、図8(c)に示したように、可動部材251,252を閉状態とし、煙突部21の入口付近の流路断面積を小さくし、煙突部21からの放熱を抑制した状態で、バーナーなどの加熱部5にて加熱して、二次燃焼室2の炉内温度を短時間に上昇させる。そして、二次燃焼室2の炉内温度が所定温度、例えば400℃程度になった場合、図8(b)に示したように、温度調整部25の可動部材251,252を開状態とし、二次燃焼室2内の高温の気体が煙突部21から外部に排気され、二次燃焼室2内に上昇気流が発生し、その二次燃焼室2で生じた上昇気流を吸引力として、一次燃焼室1で発生した高温の燃焼ガスと、一次燃焼室の上部付近からの未燃焼ガス(不完全燃焼ガス)を煙道部4へ吸気して混合し、二次燃焼室2へ導入することができる。   At the initial stage, as shown in FIG. 8C, the movable members 251 and 252 are closed, the flow passage cross-sectional area near the entrance of the chimney 21 is reduced, and the heat radiation from the chimney 21 is suppressed. The temperature in the furnace of the secondary combustion chamber 2 is raised in a short time by heating in the heating unit 5 such as a burner. When the temperature in the furnace of the secondary combustion chamber 2 reaches a predetermined temperature, for example, about 400 ° C., as shown in FIG. 8B, the movable members 251 and 252 of the temperature adjustment unit 25 are opened, The high-temperature gas in the secondary combustion chamber 2 is exhausted to the outside from the chimney 21, an ascending airflow is generated in the secondary combustion chamber 2, and the ascending airflow generated in the secondary combustion chamber 2 is used as a suction force for the primary High temperature combustion gas generated in the combustion chamber 1 and unburned gas (incomplete combustion gas) from near the upper part of the primary combustion chamber are sucked into the flue section 4 and mixed, and introduced into the secondary combustion chamber 2. Can do.
以上、説明したように、本発明の実施形態に係る焼却炉10は、室内下部にロストル11(火格子)が配置され、筒形状耐火材の炉壁を有する一次燃焼室1と、一次燃焼室1の上部に設けられ、被燃焼物を一次燃焼室1へ投入可能な収納室3と、一次燃焼室1に対して並設され、筒形状耐火材の炉壁を有する二次燃焼室2と、二次燃焼室2の上部に設けられた煙突部21と、一次燃焼室1の下部と二次燃焼室2の下部を連通する煙道部4と、二次燃焼室2に設けられ、一次燃焼室1から煙道部4を介して二次燃焼室2に導入される不完全燃焼ガスを完全燃焼させるバーナーなどの加熱部5と、二次燃焼室2に空気を供給する空気供給部6と、を有する。
また、焼却炉10は、煙道部4の一次燃焼室側吸気口4aから一次燃焼室1の室内側に向かって突出した突出部7aを備え、当該突出部7aにより収納室3から一次燃焼室1の室内へ投入された被燃焼物の煙道部への流入を防ぐ延焼遮断部7と、不完全燃焼ガス用吸気口8aが一次燃焼室内の上部付近に位置し、当該不完全燃焼ガス用吸気口8aから一次燃焼室の内壁に沿って通気路が形成され、煙道部4に連通する不完全燃焼ガス還流路8と、を有する。
すなわち、一次燃焼室1の上部付近の不完全燃焼ガスが、不完全燃焼ガス還流路8を介して煙道部4に流入し、煙道部4内で、一次燃焼室の下部の高温の燃焼ガスと不完全燃焼ガスが混合して、不完全燃焼ガスの一部分又は全部が燃焼し、それが二次燃焼室2に流入し、バーナーなどの加熱部5により室内が高温に維持された二次燃焼室2にて、空気供給部6により空気が供給され、高効率で不完全燃焼ガスを完全に燃焼することができる。
As described above, the incinerator 10 according to the embodiment of the present invention includes the primary combustion chamber 1 in which the rooster 11 (grate) is disposed in the lower part of the room, and the furnace wall of the cylindrical refractory material, and the primary combustion chamber. A storage chamber 3 provided at the upper portion of 1 and capable of introducing a combustible into the primary combustion chamber 1; a secondary combustion chamber 2 provided in parallel to the primary combustion chamber 1 and having a furnace wall of a cylindrical refractory material; The chimney 21 provided in the upper part of the secondary combustion chamber 2, the flue part 4 communicating the lower part of the primary combustion chamber 1 and the lower part of the secondary combustion chamber 2, and the secondary combustion chamber 2, A heating unit 5 such as a burner that completely burns incomplete combustion gas introduced into the secondary combustion chamber 2 from the combustion chamber 1 through the flue portion 4, and an air supply unit 6 that supplies air to the secondary combustion chamber 2 And having.
Further, the incinerator 10 includes a protruding portion 7a protruding from the primary combustion chamber side intake port 4a of the flue portion 4 toward the indoor side of the primary combustion chamber 1, and the protruding portion 7a causes the primary combustion chamber from the storage chamber 3. A fire spread block 7 for preventing inflow of combustibles introduced into the chamber 1 into the flue section and an incomplete combustion gas inlet 8a are located near the upper portion of the primary combustion chamber, and the incomplete combustion gas A ventilation path is formed from the intake port 8 a along the inner wall of the primary combustion chamber, and an incomplete combustion gas recirculation path 8 communicating with the flue portion 4 is provided.
That is, incomplete combustion gas in the vicinity of the upper part of the primary combustion chamber 1 flows into the flue portion 4 via the incomplete combustion gas recirculation path 8, and high-temperature combustion in the lower portion of the primary combustion chamber is performed in the flue portion 4. The gas and the incomplete combustion gas are mixed, and a part or all of the incomplete combustion gas is combusted, which flows into the secondary combustion chamber 2, and the secondary is maintained at a high temperature by the heating unit 5 such as a burner. In the combustion chamber 2, air is supplied by the air supply unit 6, and the incomplete combustion gas can be burned completely with high efficiency.
詳細には、本発明の実施形態に係る焼却炉は、二次燃焼室2で生じた上昇気流を、一次燃焼室1で発生した高温の燃焼ガスと、一次燃焼室1の上部付近からの未燃焼ガス(不完全燃焼ガス)を煙道部4へ吸気する吸引力として利用し、煙道部4で高温の燃焼ガスと未燃焼ガス(不完全燃焼ガス)を混合して、二次燃焼室2へ導入することができる。   Specifically, the incinerator according to the embodiment of the present invention uses the upward air flow generated in the secondary combustion chamber 2 to generate the high-temperature combustion gas generated in the primary combustion chamber 1 and the unburned air from the upper vicinity of the primary combustion chamber 1. Combustion gas (incomplete combustion gas) is used as a suction force for sucking into the flue section 4, and the high temperature combustion gas and uncombusted gas (incomplete combustion gas) are mixed in the flue section 4, and the secondary combustion chamber 2 can be introduced.
また、本実施形態では、煙道部4は、基礎部102に傾斜部102kが形成され、一次燃焼室側吸気口4a,4b,4cよりも二次燃焼室側排出口4eの流路断面積が小さくなるように形成されている。すなわち、焼却炉稼働時、ベンチュリ効果により、二次燃焼室側排出口4e付近ではガスの流速が比較的速く、気圧が比較的低くなり、煙道部4の各吸気口での吸引力が大きい。
また、一次燃焼室1の下部に配置されている上部ロストル11A(11)上の被燃焼物が高温で燃焼しており、一次燃焼室1の下部にトンネル状に設けられた煙道部4に高温の燃焼ガスや熱線が煙道部4に直接入力され、不完全燃焼ガス還流路8を介して煙道部4に流入した不完全燃焼ガスが高効率で熱せられ、不完全燃焼ガスの一部分または全部を燃焼させることができ、そのガスを二次燃焼室2へ導入することで、二次燃焼室2にて高効率で不完全燃焼ガスを完全に燃焼することができる。
In the present embodiment, the flue section 4 has an inclined portion 102k formed in the base portion 102, and the flow passage cross-sectional area of the secondary combustion chamber side exhaust port 4e rather than the primary combustion chamber side intake ports 4a, 4b, 4c. Is formed to be small. That is, when the incinerator is in operation, due to the venturi effect, the gas flow velocity is relatively fast and the atmospheric pressure is relatively low in the vicinity of the secondary combustion chamber side outlet 4e, and the suction force at each inlet of the flue section 4 is large. .
In addition, the combustibles on the upper rooster 11A (11) disposed in the lower part of the primary combustion chamber 1 are combusted at high temperatures, and the flue portion 4 provided in a tunnel shape in the lower part of the primary combustion chamber 1 A high-temperature combustion gas or hot wire is directly input to the flue section 4, and the incomplete combustion gas flowing into the flue section 4 through the incomplete combustion gas recirculation path 8 is heated with high efficiency, and a part of the incomplete combustion gas. Alternatively, the entire combustion can be performed, and by introducing the gas into the secondary combustion chamber 2, the incomplete combustion gas can be completely combusted in the secondary combustion chamber 2 with high efficiency.
また、延焼遮断部7の突出部7aにより、収納室3から一次燃焼室1の室内へ投入された被燃焼物の煙道部4への流入を容易に防ぐことができる。つまり、被燃焼物が煙道部4へ流入し、煙道部4の通気路を塞いだ状態で延焼することを防止することができる。   Further, the protrusion 7 a of the fire spread block 7 can easily prevent the inflow of the combusted material introduced from the storage chamber 3 into the primary combustion chamber 1 into the flue portion 4. That is, it is possible to prevent the combustible material from flowing into the flue portion 4 and spreading it in a state where the air passage of the flue portion 4 is blocked.
また、本発明の実施形態に係る焼却炉10は、収納室3から一次燃焼室1の外部を通って煙道部4に連通する連通路が形成された不完全燃焼ガス用還流管9を有する。すなわち、簡単な構成により、収納室3の不完全燃焼ガスを二次燃焼室2へ導き、二次燃焼室2で不完全燃焼ガスを完全燃焼させることができる。   Moreover, the incinerator 10 which concerns on embodiment of this invention has the recirculation pipe | tube 9 for incomplete combustion gas in which the communicating path which connects the storage chamber 3 to the flue part 4 through the exterior of the primary combustion chamber 1 was formed. . That is, with a simple configuration, the incomplete combustion gas in the storage chamber 3 can be guided to the secondary combustion chamber 2, and the incomplete combustion gas can be completely burned in the secondary combustion chamber 2.
また、本発明の実施形態に係る焼却炉10は、二次燃焼室2の室内で、煙道部4の二次燃焼室側排出口4eと煙突部21の間に配置され、煙道部4の二次燃焼室側排出口4eからの火炎を二次燃焼室2の室内で均一となるように調整する火炎調整板24を有する。すなわち、火炎調整板24により、煙道部4から二次燃焼室2に流入した火炎の上昇の一部分を阻害し、火炎を二次燃焼室2に均等に分布させることにより、混合ガスを高い燃焼効率で完全燃焼させることができる。   The incinerator 10 according to the embodiment of the present invention is disposed between the secondary combustion chamber side outlet 4e of the flue portion 4 and the chimney 21 in the interior of the secondary combustion chamber 2, and the flue portion 4 A flame adjusting plate 24 for adjusting the flame from the secondary combustion chamber side discharge port 4e to be uniform in the chamber of the secondary combustion chamber 2 is provided. In other words, the flame adjustment plate 24 inhibits a part of the rise of the flame flowing into the secondary combustion chamber 2 from the flue section 4 and distributes the flame evenly in the secondary combustion chamber 2, thereby high combustion of the mixed gas. It can be completely burned efficiently.
次に、上述した本発明の実施形態に係る焼却炉の効果を箇条書きに記載する。
1.被燃焼物として、例えば、草木系及び紙質系の有機物に関して残滓を作らない。
従来の小型焼却炉の多くは、焼却後、炉内に残滓が堆積する。その残滓を処理する場合、例えば、関係官庁に報告し、焼却許可を有する施設へ搬出することを要する。本発明の実施形態に係る焼却炉は、上述したように、上部ロストル11A、下部ロストル11Bを有し、下部ロストル11Bは上部ロストル11Aの間隔よりも狭い間隔に設定されているので、被燃焼物を完全に燃焼することができ、残滓の堆積が非常に少ない。
本願発明者は、実際に本願発明に係る焼却炉を作製し、焼却実験を行った。実験の結果、残滓が非常に少なく、有機物が完全に燃焼し、灰だけが残ることを確認することができた。
Next, the effects of the incinerator according to the embodiment of the present invention described above will be described in the itemized list.
1. As a combustible material, for example, no residue is produced for vegetation-based and paper-based organic materials.
In many of the conventional small incinerators, residues are accumulated in the furnace after incineration. When processing the residue, for example, it is necessary to report it to the relevant government office and to carry it out to a facility with incineration permission. As described above, the incinerator according to the embodiment of the present invention includes the upper rooster 11A and the lower rooster 11B, and the lower rooster 11B is set to an interval narrower than the interval of the upper rooster 11A. Can be burned completely and there is very little accumulation of residue.
The inventor of the present application actually manufactured an incinerator according to the present invention and conducted an incineration experiment. As a result of the experiment, it was confirmed that there was very little residue, the organic matter was completely burned, and only ash remained.
2.一次燃焼室1(一次焼却炉)の不完全燃焼ガスの還流処理。
従来の小型焼却炉では、炉内に不完全燃焼ガスが滞留する場合がある。本発明の実施形態に係る焼却炉は、上述したように、一次燃焼室1の上部付近に不完全燃焼ガスの還流部(不完全燃焼ガス還流路8)を有し、煙道部4で再燃焼する構成である。収納庫(収納室3)内に流入する煙は、ダクトパイプ(不完全燃焼ガス用還流管9)により煙道へ出力し、二次燃焼室(二号炉)内に送りこみ、高温の二次燃焼室2の炉内で完全燃焼させ、ダイオキシン等の有毒ガスの発生を抑制することができる。
2. Reflux treatment of incomplete combustion gas in the primary combustion chamber 1 (primary incinerator).
In a conventional small incinerator, incomplete combustion gas may stay in the furnace. As described above, the incinerator according to the embodiment of the present invention has an incomplete combustion gas recirculation part (incomplete combustion gas recirculation path 8) near the upper portion of the primary combustion chamber 1. It is the structure which burns. The smoke flowing into the storage (storage chamber 3) is output to the flue through the duct pipe (incomplete combustion gas recirculation pipe 9) and sent into the secondary combustion chamber (second furnace). Complete combustion in the furnace of the next combustion chamber 2 can suppress the generation of toxic gases such as dioxins.
3.二次燃焼室2(二号炉)の燃焼ガスの分散加熱。
火炎調整板24を設けない場合、二次燃焼室2(二号炉)に流入する燃焼ガスは上昇気流が均一でない。詳細には、二次燃焼室2の下部に設けられた連通路の出口付近から、二次燃焼室2へ火炎が流れ上昇するが、上方から見た場合、二次燃焼室2内の煙道部4の出口付近側へ炎が偏った状態となる場合がある。その状態で、空気を流入させ酸素供給させた場合、追い風の状態となる。
本発明の実施形態に係る焼却炉は、上述したように、二次燃焼室内(炉内)の上面視で、煙道部4の出口側に、ガスの流路の一部分を遮蔽する火炎調整板24(制御板)を有する。火炎調整板24は円形状、矩形状などの所定の形状に形成されている。火炎調整板24を設けることにより、煙道部4の出口から煙突に至る流路にて乱気流化を生じさせ、炎を拡散させ、空気供給管から酸素(空気)を供給する向かい風状態とすることで、高効率で不完全燃焼ガスを完全燃焼した後、燃焼ガスを煙突部21から放出することができる。
3. Dispersion heating of combustion gas in the secondary combustion chamber 2 (No. 2 furnace).
When the flame adjustment plate 24 is not provided, the upward flow of the combustion gas flowing into the secondary combustion chamber 2 (No. 2 furnace) is not uniform. Specifically, a flame flows up to the secondary combustion chamber 2 from the vicinity of the outlet of the communication path provided in the lower part of the secondary combustion chamber 2, but when viewed from above, the flue in the secondary combustion chamber 2 In some cases, the flame is biased toward the exit of the portion 4. In this state, when air is supplied and oxygen is supplied, a tailwind is obtained.
As described above, the incinerator according to the embodiment of the present invention is a flame adjustment plate that shields a part of the gas flow path on the outlet side of the flue portion 4 in a top view of the secondary combustion chamber (inside the furnace). 24 (control plate). The flame adjustment plate 24 is formed in a predetermined shape such as a circular shape or a rectangular shape. By providing the flame adjustment plate 24, turbulence is generated in the flow path from the outlet of the flue section 4 to the chimney, the flame is diffused, and the head is in a headwind state where oxygen (air) is supplied from the air supply pipe. Thus, after the incomplete combustion gas is completely burned with high efficiency, the combustion gas can be released from the chimney 21.
4.二次燃焼室(二号炉)の初期の高温化
二次燃焼室(二号炉)をバーナー等の加熱部5により高温化し、二次燃焼室内に上昇気流を発生させる。本願発明者による実験の結果、二次燃焼室2内(炉内)が約400℃以上の場合、二次燃焼室2内に高効率で上昇気流を発生させることができる。また、上述したように、本実施形態では、二次燃焼室2の煙突部21の取付け部分に温度調整部25としてプレートを設けた。初期加熱時、温度調整部25のプレートを閉状態とすることで、煙突部21への無駄な放熱を抑え、二次燃焼室2の室内の温度を短時間で上昇させることができる。また、加熱部としてのバーナーによる加熱時間を短縮することができ、安価に二次燃焼室2を加熱することができる。
4). Initial temperature increase of the secondary combustion chamber (No. 2 furnace) The temperature of the secondary combustion chamber (No. 2 furnace) is increased by the heating unit 5 such as a burner to generate an updraft in the secondary combustion chamber. As a result of an experiment by the inventor of the present application, when the inside of the secondary combustion chamber 2 (inside the furnace) is about 400 ° C. or higher, an ascending air current can be generated in the secondary combustion chamber 2 with high efficiency. Further, as described above, in the present embodiment, a plate is provided as the temperature adjustment unit 25 in the attachment portion of the chimney portion 21 of the secondary combustion chamber 2. By closing the plate of the temperature adjustment unit 25 during the initial heating, useless heat radiation to the chimney 21 can be suppressed, and the temperature in the secondary combustion chamber 2 can be raised in a short time. Moreover, the heating time by the burner as a heating part can be shortened, and the secondary combustion chamber 2 can be heated cheaply.
5.維持管理の経済性
本発明の実施形態に係る焼却炉は、一次燃焼室1および二次燃焼室2の内壁にキャスタブル(耐火コンクリート)を使用し、耐熱壁としている。耐熱資材メーカーで一般的に販売している耐熱資材は、耐熱性が約1200℃である。従来の一般的な焼却炉は、800℃以上の高温で、数年間焼却した場合、キャスタブルの表面が粉状となり、脱落することがある。従来の小型焼却炉は、その時点が寿命であった。
本発明の実施形態に係る焼却炉は、一次燃焼室1の上部に収納庫(収納室3)を着脱自在に備えている。また、二次燃焼室2の上部に、煙突架台が取り外し可能に設けられている。耐久性を考慮して、二次燃焼室2の炉内温度を約800〜850℃程度とすることが好ましい。
このように、焼却炉は、収納室3や煙突架台が取り外し可能に構成されているので、容易にメンテナンスすることができ、焼却炉を長期に使用することができ、維持管理の経済性が優れている。
5. Economic efficiency of maintenance The incinerator according to the embodiment of the present invention uses castable (refractory concrete) on the inner walls of the primary combustion chamber 1 and the secondary combustion chamber 2 to form a heat-resistant wall. A heat-resistant material generally sold by a heat-resistant material manufacturer has a heat resistance of about 1200 ° C. In a conventional general incinerator, when incinerated for several years at a high temperature of 800 ° C. or higher, the castable surface may become powdery and fall off. The conventional small incinerator had a lifetime at that time.
The incinerator according to the embodiment of the present invention is provided with a storage (storage chamber 3) in the upper part of the primary combustion chamber 1 in a detachable manner. In addition, a chimney mount is detachably provided at the upper part of the secondary combustion chamber 2. In consideration of durability, it is preferable to set the furnace temperature of the secondary combustion chamber 2 to about 800 to 850 ° C.
Thus, since the incinerator is configured so that the storage chamber 3 and the chimney mount can be removed, the incinerator can be easily maintained, the incinerator can be used for a long time, and the economical efficiency of maintenance is excellent. ing.
6.延焼遮断部の効果
本発明の実施形態に係る焼却炉は、一次燃焼室1と二次燃焼室2との間に煙道部4を有する。二次燃焼室2で生じた上昇気流を吸引力として、一次燃焼室1で発生した高温の燃焼ガスと、一次燃焼室の上部付近からの未燃焼ガス(不完全燃焼ガス)を煙道部4へ吸気して混合し、高効率で二次燃焼室2へ導入する。また、煙道部4の一次燃焼室側に、延焼遮断部7(延焼遮断ボックス)が設けられている。延焼遮断部7は、一次燃焼室1の内壁よりも内側(一次燃焼室の中央側)に向かって突出した突出部7aが形成されている。
例えば、煙道部4の吸引力が低下した場合、未燃焼ガス(不完全燃焼ガス)が炉外に流出し、生活環境に迷惑、公害対策違反対象になる虞がある。
本発明の実施形態に係る焼却炉は、延焼遮断部7を備えるので、簡単な構成により、煙道部4が被燃焼物で塞がれることを防止することができ、煙道部4の吸引力の低下を防止することができる。
6). Effect of Fire Spread Blocking Section The incinerator according to the embodiment of the present invention has a flue section 4 between the primary combustion chamber 1 and the secondary combustion chamber 2. Using the ascending airflow generated in the secondary combustion chamber 2 as a suction force, the high-temperature combustion gas generated in the primary combustion chamber 1 and the unburned gas (incomplete combustion gas) from the vicinity of the upper portion of the primary combustion chamber 1 To the secondary combustion chamber 2 with high efficiency. Further, a fire spread blocking unit 7 (fire spread blocking box) is provided on the primary combustion chamber side of the flue section 4. The fire spread blocking portion 7 is formed with a protruding portion 7 a protruding toward the inner side (center side of the primary combustion chamber) than the inner wall of the primary combustion chamber 1.
For example, when the suction power of the flue section 4 is reduced, unburned gas (incomplete combustion gas) flows out of the furnace, which may be annoying to the living environment and may be a target for violating pollution measures.
Since the incinerator which concerns on embodiment of this invention is provided with the fire spread interruption | blocking part 7, it can prevent that the flue part 4 is obstruct | occluded with a to-be-burned material by simple structure, and the suction of the flue part 4 It is possible to prevent a decrease in force.
7.二次燃焼室(二号炉)の内壁面に設けられた円筒状金属板(ステンレスなど)。
本発明の実施形態に係る焼却炉は、燃焼時、二次燃焼室内の燃焼温度を約800℃〜850℃程度に維持することができる。燃焼時、二次燃焼室内の温度が低下した場合、加熱部として、石油や可燃ガスなどを使用する助燃バーナーを作動させて、温度を上昇させる。また、焼却炉は、温度検出部として、温度センサを備え、燃焼温度を管理する。例えば、被燃焼物(被焼却物)の種別や状態によって燃焼温度が変わる。本発明の実施形態に係る焼却炉は、二次燃焼室内(炉内)の温度を保持するため、二次燃焼室2の内側にステンレスなどの金属製の円筒板(筒状部2f)を備え、助燃用バーナーに用いられる燃料に費やす費用を軽減可能である。また、この筒状部2fは交換可能であることが好ましい。
7). A cylindrical metal plate (stainless steel, etc.) provided on the inner wall of the secondary combustion chamber (No. 2 furnace).
The incinerator which concerns on embodiment of this invention can maintain the combustion temperature in a secondary combustion chamber at about 800 to 850 degreeC at the time of combustion. When the temperature in the secondary combustion chamber decreases during combustion, an auxiliary combustion burner that uses oil, combustible gas, or the like is operated as a heating unit to increase the temperature. Moreover, an incinerator is equipped with a temperature sensor as a temperature detection part, and manages combustion temperature. For example, the combustion temperature varies depending on the type and state of the combusted material (incinerated material). The incinerator according to the embodiment of the present invention includes a cylindrical plate (cylindrical portion 2f) made of stainless steel or the like inside the secondary combustion chamber 2 in order to maintain the temperature in the secondary combustion chamber (inside the furnace). It is possible to reduce the cost of the fuel used for the auxiliary burner. Moreover, it is preferable that this cylindrical part 2f is replaceable.
尚、本発明の実施形態に係る焼却炉は小型であり、火床面積が0.5m2未満であることが好ましい。 The incinerator according to the embodiment of the present invention is small and preferably has a firebed area of less than 0.5 m 2 .
以上、本発明の実施形態について図面を参照して詳述してきたが、具体的な構成はこれらの実施形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計の変更等があっても本発明に含まれる。
また、上述の各図で示した実施形態は、その目的及び構成等に特に矛盾や問題がない限り、互いの記載内容を組み合わせることが可能である。
また、各図の記載内容はそれぞれ独立した実施形態になり得るものであり、本発明の実施形態は各図を組み合わせた一つの実施形態に限定されるものではない。
本発明の実施形態に係る焼却炉は、さらに、二次燃焼室2の断熱材27と二次燃焼室2の外壁(炉壁2a)間にらせん状の熱伝導性パイプを備え、二次燃焼室2外に設けたタンクとの間で熱媒体として水などの液体をポンプなどにより循環させる構成となっていてもよい。つまり、この焼却炉で発生する熱を融雪や農業ハウスの暖房などに活用してもよい。
As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and there are design changes and the like without departing from the gist of the present invention. Is included in the present invention.
Further, the embodiments described in the above drawings can be combined with each other as long as there is no particular contradiction or problem in the purpose and configuration.
Moreover, the description content of each figure can become independent embodiment, respectively, and embodiment of this invention is not limited to one embodiment which combined each figure.
The incinerator according to the embodiment of the present invention further includes a spiral heat conductive pipe between the heat insulating material 27 of the secondary combustion chamber 2 and the outer wall (furnace wall 2a) of the secondary combustion chamber 2, and the secondary combustion. A liquid such as water may be circulated by a pump or the like as a heat medium between a tank provided outside the chamber 2. In other words, the heat generated in this incinerator may be used for melting snow or heating an agricultural house.
1…一次燃焼室
2…二次燃焼室
3…収納室
4…煙道部
4a…一次燃焼室側吸気口
4b,4c…吸気口
4e…二次燃焼室側排出口
4t…煙道部の筒状部の上部
5…加熱部(バーナー)
6…空気供給部
6A…送風機
7…延焼遮断部
7a…突出部
7c…開口部
8…不完全燃焼ガス還流路
9…不完全燃焼ガス用還流管
10…焼却炉
11…ロストル
11A…上部ロストル
11B…下部ロストル
21…煙突部
23…空気供給管
24…火炎調整板
25…温度調整部(温度調整板)
51…温度検出部
52…制御部
61…通気路
DESCRIPTION OF SYMBOLS 1 ... Primary combustion chamber 2 ... Secondary combustion chamber 3 ... Storage chamber 4 ... Flue part 4a ... Primary combustion chamber side inlet 4b, 4c ... Inlet 4e ... Secondary combustion chamber side outlet 4t ... Flue cylinder Upper part of the shape part 5 ... Heating part (burner)
DESCRIPTION OF SYMBOLS 6 ... Air supply part 6A ... Air blower 7 ... Fire spread interruption part 7a ... Protrusion part 7c ... Opening part 8 ... Incomplete combustion gas recirculation path 9 ... Incomplete combustion gas recirculation pipe 10 ... Incinerator 11 ... Rooster 11A ... Upper rooster 11B ... Lower rooster 21 ... Smokestack 23 ... Air supply pipe 24 ... Flame adjustment plate 25 ... Temperature adjustment unit (temperature adjustment plate)
51 ... Temperature detection unit 52 ... Control unit 61 ... Air passage

Claims (4)

  1. 室内下部にロストルが配置され、耐火材で形成された筒形状の炉壁を備える一次燃焼室と、
    前記一次燃焼室の上部に設けられ、被燃焼物を前記一次燃焼室へ投入可能な収納室と、
    前記一次燃焼室に対して並設され、耐火材で形成された筒形状の炉壁を備える二次燃焼室と、
    前記二次燃焼室の上部に設けられた煙突部と、
    前記一次燃焼室の下部と前記二次燃焼室の下部を連通する煙道部と、
    前記二次燃焼室の室内を加熱し、前記一次燃焼室から前記煙道部を介して前記二次燃焼室に導入される不完全燃焼ガスを完全燃焼させる加熱部と、
    前記二次燃焼室に空気を供給する空気供給部と、を有する焼却炉であって、
    前記煙道部の一次燃焼室側吸気口から前記一次燃焼室の室内側に向かって突出した突出部を備え、当該突出部により前記収納室から前記一次燃焼室内へ投入された被燃焼物の前記煙道部への流入を防ぐ延焼遮断部と、
    不完全燃焼ガス用吸気口が前記一次燃焼室内の上部付近に位置し、当該不完全燃焼ガス用吸気口から前記一次燃焼室の内壁に沿って通気路が形成され、前記煙道部に連通する不完全燃焼ガス還流路と、を有することを特徴とする
    焼却炉。
    A primary combustion chamber having a cylindrical furnace wall formed with a rooster in the lower part of the room and formed of a refractory material;
    A storage chamber provided in an upper portion of the primary combustion chamber and capable of charging a combustible into the primary combustion chamber;
    A secondary combustion chamber provided in parallel with the primary combustion chamber and provided with a cylindrical furnace wall formed of a refractory material;
    A chimney provided in the upper part of the secondary combustion chamber;
    A flue section communicating with a lower portion of the primary combustion chamber and a lower portion of the secondary combustion chamber;
    A heating unit that heats the interior of the secondary combustion chamber and completely burns incomplete combustion gas introduced from the primary combustion chamber into the secondary combustion chamber through the flue portion;
    An incinerator having an air supply unit for supplying air to the secondary combustion chamber,
    A projecting portion projecting from the primary combustion chamber side intake port of the flue portion toward the indoor side of the primary combustion chamber, and the combusted material introduced into the primary combustion chamber from the storage chamber by the projecting portion; A fire spread block to prevent inflow into the flue,
    An incomplete combustion gas intake port is located near the upper portion of the primary combustion chamber, and a ventilation path is formed along the inner wall of the primary combustion chamber from the incomplete combustion gas intake port, and communicates with the flue portion. And an incomplete combustion gas recirculation passage.
  2. 前記収納室から前記一次燃焼室の外部を通って前記煙道部に連通する通気路が形成された不完全燃焼ガス用還流管を有することを特徴とする請求項1に記載の焼却炉。   2. The incinerator according to claim 1, further comprising an incomplete combustion gas recirculation pipe formed with an air passage communicating with the flue portion from the storage chamber through the outside of the primary combustion chamber.
  3. 前記一次燃焼室の下部に設けられたロストルは、上部ロストルと、当該上部ロストルよりも隙間の狭い下部ロストルと、を有することを特徴とする請求項1または請求項2に記載の焼却炉。   3. The incinerator according to claim 1, wherein the rooster provided in a lower portion of the primary combustion chamber includes an upper rooster and a lower rooster having a narrower gap than the upper rooster.
  4. 前記二次燃焼室の室内で、前記煙道部の二次燃焼室側排出口と前記煙突部の間に配置され、前記煙道部の二次燃焼室側排出口からの火炎を前記二次燃焼室内で均一となるように調整する火炎調整板を有することを特徴とする請求項1から請求項3のいずれかに記載の焼却炉。   In the chamber of the secondary combustion chamber, it is disposed between the secondary combustion chamber side outlet of the flue portion and the chimney, and the flame from the secondary combustion chamber side outlet of the flue portion is passed through the secondary combustion chamber. The incinerator according to any one of claims 1 to 3, further comprising a flame adjusting plate that is adjusted to be uniform in the combustion chamber.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6360960B1 (en) * 2017-12-13 2018-07-18 聖治 西岡 Combustion device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6360960B1 (en) * 2017-12-13 2018-07-18 聖治 西岡 Combustion device

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