JP2018185141A - Incinerator having secondary combustion furnace - Google Patents
Incinerator having secondary combustion furnace Download PDFInfo
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- JP2018185141A JP2018185141A JP2018139093A JP2018139093A JP2018185141A JP 2018185141 A JP2018185141 A JP 2018185141A JP 2018139093 A JP2018139093 A JP 2018139093A JP 2018139093 A JP2018139093 A JP 2018139093A JP 2018185141 A JP2018185141 A JP 2018185141A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 148
- 239000000567 combustion gas Substances 0.000 claims abstract description 73
- 239000007789 gas Substances 0.000 abstract description 15
- 239000000428 dust Substances 0.000 abstract description 8
- 239000004071 soot Substances 0.000 abstract description 5
- 238000007664 blowing Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000010920 waste tyre Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000004380 ashing Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Incineration Of Waste (AREA)
Abstract
Description
本発明は、事業所や一般家庭等から排出される廃タイヤ、合成ゴム、廃プラスチック等の焼却炉に関するものである。 The present invention relates to an incinerator for waste tires, synthetic rubbers, waste plastics, and the like discharged from business offices and general households.
従来、事業所等から排出される廃タイヤ、廃プラスチック、塩化ビニール等の各種産業廃棄物を焼却処理するために各種の焼却炉が開発され、提案されている。
例えば、プラスッチク屑や廃タイヤ等の廃棄物は燃焼速度や燃焼温度が高いために耐火煉瓦構造の大型で、構造も複雑な焼却炉で焼却されている。
また、塵芥類の焼却においても、種々雑多なものが混入し、水分も多量に含んだものもあるため、炉内を乾燥室と焼却室とに分けてストーカで塵芥類を搬入する様な大型の焼却炉が使用され、被焼却物をなるべく完全燃焼させつつ不完全燃焼による公害の発生を防止しているものがある。
このため、例えば煤塵や未燃焼ガスの分解を促進する不完全燃焼物を再燃焼する二次燃焼炉を有する焼却炉が提案されている。
特許文献１（特開２００６−３８２７８号公報）には、被燃焼物を燃焼する一次燃焼炉を形成する焼却炉体の上面に一次燃焼炉に連通する排気筒を設け、二次燃焼炉には、上方位置にブロア装置を、下方位置にバーナー装置を取付け、排気筒に対してそれぞれ斜め上方及び排気筒の中心線に対して偏心して取付けたことにより、バーナー装置より噴射する炎熱を二次燃焼炉の内周沿面において回転を発生させる渦状の排ガス流通経路を形成した焼却炉が記載されている。
Conventionally, various incinerators have been developed and proposed in order to incinerate various industrial wastes such as waste tires, waste plastics, and vinyl chloride discharged from business establishments.
For example, wastes such as plastic scraps and waste tires are incinerated in an incinerator with a large refractory brick structure and a complicated structure because of its high combustion speed and combustion temperature.
Also, incineration of garbage, various miscellaneous things are mixed in, and some of them contain a large amount of moisture. Therefore, a large-sized trash can is carried in a stoker by dividing the furnace into a drying chamber and an incineration chamber. Some incinerators are used to prevent the occurrence of pollution due to incomplete combustion while completely burning the incinerated material as much as possible.
For this reason, for example, an incinerator having a secondary combustion furnace for recombusting incompletely combusted matter that promotes decomposition of dust and unburned gas has been proposed.
In Patent Document 1 (Japanese Patent Laid-Open No. 2006-38278), an exhaust pipe communicating with the primary combustion furnace is provided on the upper surface of the incinerator body that forms the primary combustion furnace for burning the combusted material. A blower device is attached to the upper position, and a burner device is attached to the lower position, and the flame heat injected from the burner device is subjected to secondary combustion by attaching the blower device obliquely to the exhaust tube and eccentrically with respect to the center line of the exhaust tube. An incinerator is described in which a spiral exhaust gas flow path for generating rotation on the inner peripheral surface of the furnace is formed.
しかしながら、前記焼却装置は、設備を大型化すればするほど、設備経費が割高となるもので、ときには不完全燃焼した黒煙が排出されて近隣居住者の反発を受けることもあり、中小規模の事業所や一般家庭等においては、簡易な構造で被焼却物を完全燃焼させ、しかも設備経費も安価な焼却炉が望まれていた。
また、特許文献１の焼却炉は、二次燃焼炉にバーナー装置を偏心して取付けたことにより、二次燃焼炉において、煤塵や未燃焼ガスの分解を促進する効果をねらったものであるが、二次燃焼炉における煤塵や未燃焼ガスの旋回滞留時間が短く、それらの分解が十分ではなかった。
However, the larger the equipment, the higher the cost of the equipment, and sometimes the incompletely burned black smoke is discharged and the local residents are repelled. In business establishments and general households, an incinerator having a simple structure that completely burns the incinerator and has low equipment costs has been desired.
Moreover, the incinerator of patent document 1 aims at the effect which accelerates | stimulates decomposition | disassembly of soot and unburned gas in a secondary combustion furnace by attaching a burner apparatus eccentrically to a secondary combustion furnace, The swirl residence time of dust and unburned gas in the secondary combustion furnace was short, and their decomposition was not sufficient.
本発明は、上記従来の問題点に鑑みてなされたものであり、二次燃焼炉の内壁面と二次煙道の外周壁との間の空間（二次燃焼ガス旋回部）で旋回状態に保持されて留め、その間に、二次燃焼ガス中に含まれている未燃焼ガスは完全燃焼させ、この旋回状態中に、燃焼ガスに含まれた煤煙や塵埃等を二次燃焼炉内で完全燃焼させ、な無煙ガスが二次煙道の側壁に形成された排気口から上部に排出させることができる二次燃焼炉を有する焼却炉を提供することを目的とする。 The present invention has been made in view of the above-described conventional problems, and is in a swirl state in a space (secondary combustion gas swirl) between the inner wall surface of the secondary combustion furnace and the outer peripheral wall of the secondary flue. In the meantime, the unburned gas contained in the secondary combustion gas is completely burned. During this swirl state, soot and dust contained in the combustion gas are completely burned in the secondary combustion furnace. It is an object of the present invention to provide an incinerator having a secondary combustion furnace that can be combusted so that smokeless gas can be discharged from an exhaust port formed in a side wall of the secondary flue to the upper part.
（１）本発明の二次燃焼炉を有する焼却炉は、一次燃焼炉と、この一次燃焼炉の上面に設けられた一次煙道を介して連通された二次燃焼炉と、前記一次煙道の出口上方に設けられたバーナー吹き込み口に取り付けられた燃焼バーナーと、二次燃焼ガスを旋回させる二次燃焼ガス旋回部と、上方からその下端が垂下され排気口が二次燃焼炉内に開口された二次煙道と、が備えられ、
前記一次燃焼炉で発生した一次燃焼ガスを一次煙道を介して二次燃焼炉に導入するとともに、
前記燃焼バーナーによって、前記一次煙道から流入した一次燃焼ガスを二次燃焼炉の二次燃焼ガス旋回部で旋回させるようにし、
前記二次煙道の側壁に設けられた排気口を介して二次燃焼ガスを外部に排出するようにしたことを特徴とする。
（２）本発明の二次燃焼炉を有する焼却炉は、上記（１）において、
前記燃焼バーナーによって、前記一次燃焼炉から二次燃焼炉へ流入する一次燃焼ガスを再燃焼させるようにしたことを特徴とする。
(1) An incinerator having a secondary combustion furnace of the present invention includes a primary combustion furnace, a secondary combustion furnace communicated via a primary flue provided on an upper surface of the primary combustion furnace, and the primary flue Combustion burner attached to the burner inlet provided above the outlet of the combustion chamber, a secondary combustion gas swirling section for swirling the secondary combustion gas, and a lower end of the combustion burner that is suspended from above, and an exhaust port is opened in the secondary combustion furnace. A secondary flue, and
Introducing the primary combustion gas generated in the primary combustion furnace into the secondary combustion furnace through the primary flue;
By the combustion burner, the primary combustion gas flowing in from the primary flue is swirled in the secondary combustion gas swirl part of the secondary combustion furnace,
The secondary combustion gas is discharged to the outside through an exhaust port provided in the side wall of the secondary flue.
(2) The incinerator having the secondary combustion furnace of the present invention is the above (1),
The primary combustion gas flowing from the primary combustion furnace into the secondary combustion furnace is recombusted by the combustion burner.
本発明の二次燃焼炉を有する焼却炉は、一次燃焼炉と、この一次燃焼炉の上面に設けられた一次煙道を介して連通された二次燃焼炉と、前記一次煙道の出口上方に設けられたバーナー吹き込み口に取り付けられた燃焼バーナーと、二次燃焼ガスを旋回させる二次燃焼ガス旋回部と、上方からその下端が垂下され排気口が二次燃焼炉内に開口された二次煙道と、が備えられ、
前記一次燃焼炉で発生した一次燃焼ガスを一次煙道を介して二次燃焼炉に導入するとともに、
前記燃焼バーナーによって、前記一次煙道から流入した一次燃焼ガスを二次燃焼炉の二次燃焼ガス旋回部で旋回させるようにし、
前記二次煙道の側壁に設けられた排気口を介して二次燃焼ガスを外部に排出するようにしたので、
一次煙道から流入した一次燃焼ガスは、燃焼バーナーの送風によって、その進行方向に旋回力を付与され、
二次燃焼炉内の二次燃焼ガスは、二次燃焼炉の内壁面と二次煙道の外周壁との間に形成された空間（二次燃焼ガス旋回部）で旋回状態に保持されて留まり、その旋回状態に保持されて留まっている間に、二次燃焼ガス中に含まれている未燃焼ガスは完全燃焼させられる。
また、この旋回状態中に、二次燃焼ガスに含まれた煤煙や塵埃等は二次燃焼炉の二次燃焼ガス旋回部で完全燃焼され、清浄な無煙ガスとして二次煙道の側壁に設けられた排気口から外部に排出される。
さらに、一次燃焼炉、二次燃焼炉、一次煙道、二次煙道は、縦方向で接続されているため、燃焼ガスの温度が途中で低下することなく燃焼効率が高く、また構造も簡略であるため、製造コストも安価であり、中小事業所から一般家庭まで簡易に設置して利用することができる。
An incinerator having a secondary combustion furnace according to the present invention includes a primary combustion furnace, a secondary combustion furnace communicated via a primary flue provided on an upper surface of the primary combustion furnace, and an upper outlet of the primary flue A combustion burner attached to the burner inlet provided in the combustion chamber, a secondary combustion gas swirl for swirling the secondary combustion gas, and a lower end of which is suspended from above, and an exhaust port is opened in the secondary combustion furnace. And the next flue,
Introducing the primary combustion gas generated in the primary combustion furnace into the secondary combustion furnace through the primary flue;
By the combustion burner, the primary combustion gas flowing in from the primary flue is swirled in the secondary combustion gas swirl part of the secondary combustion furnace,
Since the secondary combustion gas is discharged to the outside through the exhaust port provided in the side wall of the secondary flue,
The primary combustion gas flowing in from the primary flue is given a turning force in the direction of travel by the blow of the combustion burner,
The secondary combustion gas in the secondary combustion furnace is held in a swirling state in a space (secondary combustion gas swirl) formed between the inner wall of the secondary combustion furnace and the outer peripheral wall of the secondary flue. The unburned gas contained in the secondary combustion gas is completely burned while staying in the swirl state.
During this swirl state, soot and dust contained in the secondary combustion gas are completely burned in the secondary combustion gas swirl of the secondary combustion furnace, and are provided on the side wall of the secondary flue as clean smokeless gas. It is discharged to the outside from the exhaust port.
Furthermore, since the primary combustion furnace, secondary combustion furnace, primary flue, and secondary flue are connected in the vertical direction, the combustion gas temperature is not lowered in the middle and the combustion efficiency is high, and the structure is also simple. Therefore, the manufacturing cost is also low, and it can be easily installed and used from small and medium businesses to ordinary households.
本発明の二次燃焼炉を有する焼却炉は、紙、木片、廃タイヤ等の被焼却物を投入して燃焼させる一次燃焼炉１１と、
この一次燃焼炉１１の上面に設けられた一次煙道１２を介して連通された二次燃焼炉２１と、
前記一次煙道１２の出口上方に設けられたバーナー吹き込み口１２ａに取り付けられた燃焼バーナー４１と、
二次燃焼ガス２を旋回させる二次燃焼ガス旋回部２５と、
上方からその下端が垂下され排気口２２ａが二次燃焼炉２１内に開口された二次煙道２２と、が備えられ、
前記一次燃焼炉１１で発生した一次燃焼ガス１を一次煙道１２を介して二次燃焼炉２１に導入するとともに、
前記燃焼バーナー４１によって、
前記一次煙道１２から流入した一次燃焼ガス１を二次燃焼炉２１の二次燃焼ガス旋回部２５で旋回させるようにし、
前記二次煙道２２の側壁に設けられた排気口２２ａを介して二次燃焼ガス２を外部に排出するようにしている。
以下、添付図面に基づき、本発明の二次燃焼炉を有する焼却炉について詳細に説明する。
図１は、本発明の実施形態の焼却炉の概略正面図である。
図２は、本発明の実施形態の焼却炉の概略左側面図である。
図３は、本発明の実施形態の焼却炉の概略平面図である。
図４は、本発明の実施形態の焼却炉のおける燃焼作用を説明した概略正面図である。
図５は、本発明の実施形態の焼却炉における燃焼作用を説明した概略平面図である。
An incinerator having a secondary combustion furnace according to the present invention includes a primary combustion furnace 11 for injecting and burning incinerated materials such as paper, wood chips, and waste tires;
A secondary combustion furnace 21 communicated via a primary flue 12 provided on the upper surface of the primary combustion furnace 11;
A combustion burner 41 attached to a burner inlet 12a provided above the outlet of the primary flue 12,
A secondary combustion gas revolving unit 25 for revolving the secondary combustion gas 2;
A secondary flue 22 whose lower end is suspended from above and whose exhaust port 22a is opened in the secondary combustion furnace 21; and
While introducing the primary combustion gas 1 generated in the primary combustion furnace 11 to the secondary combustion furnace 21 through the primary flue 12,
By the combustion burner 41,
The primary combustion gas 1 flowing in from the primary flue 12 is swirled by the secondary combustion gas swirling unit 25 of the secondary combustion furnace 21,
The secondary combustion gas 2 is discharged to the outside through an exhaust port 22 a provided in the side wall of the secondary flue 22.
Hereinafter, an incinerator having a secondary combustion furnace of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a schematic front view of an incinerator according to an embodiment of the present invention.
FIG. 2 is a schematic left side view of the incinerator according to the embodiment of the present invention.
FIG. 3 is a schematic plan view of the incinerator according to the embodiment of the present invention.
FIG. 4 is a schematic front view illustrating the combustion action in the incinerator of the embodiment of the present invention.
FIG. 5 is a schematic plan view illustrating the combustion action in the incinerator according to the embodiment of the present invention.
図１〜図３に示するように、二次燃焼炉を有する焼却炉は、紙、木片、廃タイヤ等の被焼却物を投入して燃焼させる一次燃焼炉１１と、
この一次燃焼炉１１の上面に設けられた一次煙道１２を介して連通された二次燃焼炉２１と、
前記一次煙道１２の出口上方に設けられたバーナー吹き込み口１２ａに取り付けられた燃焼バーナー４１と、
二次燃焼ガス２を旋回させる二次燃焼ガス旋回部２５と、
上方からその下端が垂下され排気口２２ａが二次燃焼炉２１内に開口された二次煙道２２とが備えられ、
この一次燃焼炉１１、二次燃焼炉２１は耐熱性鋼板を素材として上下方向に縦型に構成されている。
As shown in FIGS. 1 to 3, an incinerator having a secondary combustion furnace includes a primary combustion furnace 11 for injecting and burning incinerated materials such as paper, wood pieces, and waste tires,
A secondary combustion furnace 21 communicated via a primary flue 12 provided on the upper surface of the primary combustion furnace 11;
A combustion burner 41 attached to a burner inlet 12a provided above the outlet of the primary flue 12,
A secondary combustion gas revolving unit 25 for revolving the secondary combustion gas 2;
A secondary flue 22 having a lower end suspended from above and an exhaust port 22a opened in the secondary combustion furnace 21;
The primary combustion furnace 11 and the secondary combustion furnace 21 are vertically configured using a heat-resistant steel plate as a material.
一次燃焼炉１１は円筒状の形状をしており、その下端は固定された底板を備えており、その内面にはキャスタブルや耐火煉瓦等の耐火物が敷設されており、外壁を構成する耐熱性鋼板で保護されている。
なお、一次燃焼炉１１は、必ずしも円筒形状に限ることなく、例えば、平面視四角形、六角形等の多角形筒体に形成してもよい。
The primary combustion furnace 11 has a cylindrical shape, and has a fixed bottom plate at its lower end. A refractory material such as castable or refractory bricks is laid on the inner surface of the primary combustion furnace 11, and the heat resistance that constitutes the outer wall. Protected with steel plate.
Note that the primary combustion furnace 11 is not necessarily limited to a cylindrical shape, and may be formed in a polygonal cylindrical body such as a quadrangle in plan view or a hexagon, for example.
＜送風ファン１９＞
一次燃焼炉１１の外壁には送風ファン１９が取り付けられており、外部空気を一次燃焼炉１１の内壁に開孔された内壁孔を介して、一次燃焼炉１１に供給するようになっている。
<Blower fan 19>
A blower fan 19 is attached to the outer wall of the primary combustion furnace 11, and external air is supplied to the primary combustion furnace 11 through an inner wall hole opened in the inner wall of the primary combustion furnace 11.
＜投入口１５＞
また、一次燃焼炉１１の下部位置には、一次燃焼炉１１内に焼却物を投入するための略矩形状の投入口１５が設けられている。
<Inlet 15>
In addition, a substantially rectangular inlet 15 for introducing incinerated material into the primary combustion furnace 11 is provided at a lower position of the primary combustion furnace 11.
＜灰出部１４＞
更に、投入口１５の下方位置には、灰出部１４が連設され、この灰出部１４の端部口に灰出扉が開閉自在に枢着されて締着具でロックされている。この灰出扉を開扉して燃焼を終えた焼却物の燃焼灰を外部へ排出するようになっている。
<Ashing part 14>
Further, an ashing portion 14 is continuously provided at a position below the charging port 15, and an ashing door is pivotally attached to an end port of the ashing portion 14 so as to be openable and closable, and is locked by a fastener. The ash exit door is opened and the combustion ash of the incinerated product that has been combusted is discharged to the outside.
＜二次燃焼炉２１＞
二次燃焼炉２１は、一次燃焼炉１１の上面に設置されており、一次煙道１２を介して一次燃焼炉１１と連通している。
<Secondary combustion furnace 21>
The secondary combustion furnace 21 is installed on the upper surface of the primary combustion furnace 11 and communicates with the primary combustion furnace 11 through the primary flue 12.
＜燃焼バーナー４１＞
一次煙道１２の出口上方の二次燃焼炉２１の壁面には、バーナー吹き込み口１２ａが設けられており、このバーナー吹き込み口１２ａには燃焼バーナー４１が取付られている。
燃焼バーナー４１は、一次煙道１２の側面から火炎又は空気を二次燃焼炉２１内に吹き込みつつ、一次煙道１２から流入した一次燃焼ガス１の未燃焼ガスを再燃焼させる。
また、燃焼バーナー４１は、一次煙道１２から流入した一次燃焼ガス１を、二次燃焼炉２１の内壁に沿って二次燃焼ガス旋回部２５で旋回させるように、その送風量を調節することができる。
なお、燃焼バーナー４１は、一次燃焼炉１１の温度が高まれば、燃焼バーナー４１に吹き込むガスや灯油などの燃料を停止して、送風のみとすることもできる。
<Combustion burner 41>
A burner inlet 12a is provided on the wall surface of the secondary combustion furnace 21 above the outlet of the primary flue 12, and a combustion burner 41 is attached to the burner inlet 12a.
The combustion burner 41 recombusts the unburned gas of the primary combustion gas 1 flowing in from the primary flue 12 while blowing flame or air into the secondary combustion furnace 21 from the side surface of the primary flue 12.
Further, the combustion burner 41 adjusts the amount of air blown so that the primary combustion gas 1 flowing in from the primary flue 12 is swirled by the secondary combustion gas swirl 25 along the inner wall of the secondary combustion furnace 21. Can do.
In addition, if the temperature of the primary combustion furnace 11 becomes high, the combustion burner 41 can also stop fuels, such as gas injected into the combustion burner 41, and kerosene, and can only carry out ventilation.
＜燃焼ガス方向変更板３１＞
また、二次燃焼炉２１内であって、一次煙道１２の流出口の片側（二次煙道寄り）に燃焼ガス方向変更板３１が設けられている。
燃焼ガス方向変更板３１は、一次煙道１２から流出された燃焼ガスを二次燃焼炉２１の内壁方向に導入するとともに、二次燃焼炉２１の内壁に沿って旋回させるようにする。
燃焼ガス方向変更板３１の形状は、具体的には、図１、図３に示すように、円筒を縦方向に分割した円弧状板を、一次煙道１２を囲うようにして取付けている。
これにより、燃焼ガスの進行方向を変更させて、燃焼バーナー４１と相まって、二次燃焼炉２１内において燃焼ガスの旋回の効率化を図ることができる。
<Combustion gas direction change plate 31>
Further, a combustion gas direction changing plate 31 is provided in the secondary combustion furnace 21 on one side (close to the secondary flue) of the outlet of the primary flue 12.
The combustion gas direction changing plate 31 introduces the combustion gas flowing out from the primary flue 12 in the direction of the inner wall of the secondary combustion furnace 21 and swirls it along the inner wall of the secondary combustion furnace 21.
Specifically, as shown in FIGS. 1 and 3, the shape of the combustion gas direction changing plate 31 is an arc-shaped plate obtained by dividing a cylinder in the vertical direction so as to surround the primary flue 12.
Thereby, the traveling direction of the combustion gas can be changed, and in combination with the combustion burner 41, the combustion gas can be efficiently swirled in the secondary combustion furnace 21.
＜二次燃焼ガス旋回部２５＞
二次燃焼炉２１の上部側には、二次燃焼ガス旋回部２５が設けられている。
一次燃焼炉１１から流入した二次燃焼ガス２の完全燃焼化を図るため、二次燃焼炉２１内での二次燃焼ガス２の滞留時間を長く確保するため旋回させるのである。
この旋回中に二次燃焼ガス２中に含まれた煤煙や塵埃等は、完全燃焼去され、煤煙や塵埃等が除去された清浄な無煙化ガスが二次煙道２２の排出口２２ａから外部に排出され、煤煙による公害等を防止できることとなる。
<Secondary combustion gas swirl unit 25>
A secondary combustion gas swirl 25 is provided on the upper side of the secondary combustion furnace 21.
In order to achieve complete combustion of the secondary combustion gas 2 flowing from the primary combustion furnace 11, the secondary combustion gas 2 is swirled to ensure a long residence time of the secondary combustion gas 2 in the secondary combustion furnace 21.
The smoke and dust contained in the secondary combustion gas 2 during this turning are completely burned away, and a clean smokeless gas from which the smoke and dust are removed is discharged from the outlet 22a of the secondary flue 22 to the outside. It is possible to prevent pollution caused by smoke.
＜二次燃焼炉２１内に設けられた二次煙道２２＞
二次燃焼炉２１内には、二次煙道２２の下端が垂下して設置されている。
二次煙道２２の側壁には排気口２２ａが設けられており、二次燃焼ガス旋回部２５で円周方向に旋回した二次燃焼ガス２をその排気口２２ａから上方外部に排気するようにしている。
なお、二次煙道２２はその下方が塞がれているともに、側壁の一部を切り欠いた排気口２２ａを設けて、二次燃焼ガス２の旋回後の排出を容易にしている。
<Secondary flue 22 provided in the secondary combustion furnace 21>
In the secondary combustion furnace 21, the lower end of the secondary flue 22 is suspended and installed.
An exhaust port 22a is provided on the side wall of the secondary flue 22 so that the secondary combustion gas 2 swirled in the circumferential direction by the secondary combustion gas swirling portion 25 is exhausted upward and outward from the exhaust port 22a. ing.
The lower side of the secondary flue 22 is blocked, and an exhaust port 22a with a part of the side wall cut away is provided to facilitate discharge of the secondary combustion gas 2 after turning.
＜焼却炉の使用方法＞
次に、本発明の二次燃焼炉を有する焼却炉の使用方法について説明する。
まずは、一次燃焼炉１１の投入口１５から、廃タイヤや廃プラスッチク等の被焼却物を一次燃焼炉１１に投入する。
また、併せて、紙や木材等も燃焼補助材として投入して着火させやすくする。
この着火時においては、一次燃焼炉１１の外面下部に設けた送風ファン１９を起動させて一次燃焼炉１１内に空気を供給する。
<How to use incinerator>
Next, the usage method of the incinerator which has the secondary combustion furnace of this invention is demonstrated.
First, incinerated objects such as waste tires and waste plastics are introduced into the primary combustion furnace 11 from the inlet 15 of the primary combustion furnace 11.
At the same time, paper, wood, etc. are also introduced as combustion aids to facilitate ignition.
At the time of ignition, the blower fan 19 provided at the lower outer surface of the primary combustion furnace 11 is activated to supply air into the primary combustion furnace 11.
廃タイヤ等に着火して燃焼が進み一次燃焼炉１１の温度が上昇した時点で、送風ファン１９の送風量を絞り、流入する外部空気の量を調整する。 When the waste tires are ignited and the combustion proceeds and the temperature of the primary combustion furnace 11 rises, the amount of air blown by the blower fan 19 is reduced to adjust the amount of external air flowing in.
一次燃焼によって発生した一次燃焼ガス１は、一次燃焼炉１１の上面に開口された一次煙道１２を介して二次燃焼炉２１内に流入する。
この一次煙道１２の出口において、燃焼ガス１は、燃焼ガス方向変更板３１によってその進行方向を変えられる。
The primary combustion gas 1 generated by the primary combustion flows into the secondary combustion furnace 21 through the primary flue 12 opened at the upper surface of the primary combustion furnace 11.
At the outlet of the primary flue 12, the traveling direction of the combustion gas 1 is changed by the combustion gas direction changing plate 31.
そして、燃焼バーナー４１から二次燃焼炉２１内に吹き込む送風量を調整し、一次煙道１２から流入した一次燃焼ガス１を、二次燃焼炉２１の内壁に沿って二次燃焼ガス旋回部２５で旋回させ、一次煙道１２から流入した一次燃焼ガス１の未燃焼ガスを再燃焼させる。
このようにして、二次燃焼ガス２に含まれた煤煙や塵埃等を二次燃焼炉２１内で完全燃焼させ、二次煙道２２上部から清浄な無煙ガスとして排出させることができる。
Then, the amount of air blown from the combustion burner 41 into the secondary combustion furnace 21 is adjusted, and the primary combustion gas 1 flowing from the primary flue 12 is moved along the inner wall of the secondary combustion furnace 21 to the secondary combustion gas swirl 25. The unburned gas of the primary combustion gas 1 flowing in from the primary flue 12 is reburned.
In this way, soot and dust contained in the secondary combustion gas 2 can be completely burned in the secondary combustion furnace 21 and discharged from the upper part of the secondary flue 22 as clean smokeless gas.
１ 一次燃焼ガス
１１ 一次燃焼炉
１２ 一次煙道
１２ａ バーナー吹き込み口
１４ 灰出し口
１５ 投入口
１９ 送風ファン
２１ 二次燃焼炉
２２ 二次煙道
２２ａ 二次煙道の排気口
２５ 二次燃焼ガス旋回部
２６ａ 二次燃焼炉２１の内壁面
２６ｂ 外壁面
３１ 燃焼ガス方向変更板
４１ 燃焼バーナー
DESCRIPTION OF SYMBOLS 1 Primary combustion gas 11 Primary combustion furnace 12 Primary flue 12a Burner inlet 14 Ash outlet 15 Inlet 19 Blow fan 21 Secondary combustion furnace 22 Secondary flue 22a Secondary flue exhaust 25 Secondary combustion gas rotation Part 26a Inner wall surface 26b of the secondary combustion furnace 21 Outer wall surface 31 Combustion gas direction change plate 41 Combustion burner
Claims (2)
この一次燃焼炉の上面に設けられた一次煙道を介して連通された二次燃焼炉と、
前記一次煙道の出口上方に設けられたバーナー吹き込み口に取り付けられた燃焼バーナーと、
二次燃焼ガスを旋回させる二次燃焼ガス旋回部と、
上方からその下端が垂下され排気口が二次燃焼炉内に開口された二次煙道と、が備えられ、
前記一次燃焼炉で発生した一次燃焼ガスを一次煙道を介して二次燃焼炉に導入するとともに、
前記燃焼バーナーによって、
前記一次煙道から流入した一次燃焼ガスを二次燃焼炉の二次燃焼ガス旋回部で旋回させるようにし、
前記二次煙道の側壁に設けられた排気口を介して二次燃焼ガスを外部に排出するようにしたことを特徴とする二次燃焼炉を有する焼却炉。 A primary combustion furnace;
A secondary combustion furnace communicated via a primary flue provided on the upper surface of the primary combustion furnace;
A combustion burner attached to a burner inlet provided above the outlet of the primary flue;
A secondary combustion gas swirl for swirling the secondary combustion gas;
A secondary flue whose lower end is suspended from above and whose exhaust port is opened in the secondary combustion furnace, and
Introducing the primary combustion gas generated in the primary combustion furnace into the secondary combustion furnace through the primary flue;
By the combustion burner,
The primary combustion gas flowing in from the primary flue is swirled in the secondary combustion gas swirl part of the secondary combustion furnace,
An incinerator having a secondary combustion furnace, characterized in that secondary combustion gas is discharged to the outside through an exhaust port provided in a side wall of the secondary flue.
前記一次燃焼炉から二次燃焼炉へ流入する一次燃焼ガスを再燃焼させるようにしたことを特徴とする請求項１に記載の二次燃焼炉を有する焼却炉。 By the combustion burner,
The incinerator having a secondary combustion furnace according to claim 1, wherein the primary combustion gas flowing from the primary combustion furnace into the secondary combustion furnace is recombusted.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7759146B1 (en) * | 2025-02-26 | 2025-10-23 | アナログシステム有限会社 | incinerator |
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