JP2002048326A - Incineration treatment apparatus for combustible spent gas - Google Patents
Incineration treatment apparatus for combustible spent gasInfo
- Publication number
- JP2002048326A JP2002048326A JP2000236553A JP2000236553A JP2002048326A JP 2002048326 A JP2002048326 A JP 2002048326A JP 2000236553 A JP2000236553 A JP 2000236553A JP 2000236553 A JP2000236553 A JP 2000236553A JP 2002048326 A JP2002048326 A JP 2002048326A
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- Prior art keywords
- exhaust gas
- temperature
- combustible
- gas
- combustion chamber
- 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.)
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Landscapes
- Chimneys And Flues (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、滅菌処理など各種
処理後に不要となったガスや、処理中等に生じる臭気ガ
ス等、環境汚染につながる可燃性のガス(以下「可燃性
用尽ガス」という)を焼却することにより、無臭無害な
ガスにして大気に放出するための可燃性用尽ガスの焼却
処理装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustible gas (hereinafter referred to as a "combustible exhaust gas") which leads to environmental pollution, such as a gas which becomes unnecessary after various treatments such as a sterilization treatment, an odor gas generated during the treatment or the like. The present invention relates to a flammable exhaust gas incineration apparatus for incinerating odorless and harmless gas by incineration.
【0002】[0002]
【従来の技術】この種の可燃性用尽ガスの焼却処理装置
としては、従来より例えば図2中の符号(40)で示すも
の(以下「従来例1」という)、あるいは図3中の符号
(50)で示すもの(以下「従来例2」という)が知られて
いる。ここで図2は、従来例1に係る直燃型焼却処理装
置(40)と滅菌処理装置(30)とを関連付けて示す概要
図、図3は従来例2に係る触媒型焼却処理装置(50)の
模式図〔滅菌処理装置(30)を省略〕である。2. Description of the Related Art A conventional incineration apparatus for combustible exhaust gas is, for example, an apparatus shown by reference numeral (40) in FIG. 2 (hereinafter referred to as "conventional example 1") or an apparatus shown in FIG.
The one shown by (50) (hereinafter referred to as "conventional example 2") is known. Here, FIG. 2 is a schematic diagram showing a direct combustion type incineration apparatus (40) and a sterilization apparatus (30) according to Conventional Example 1 in association with each other, and FIG. 3 is a catalytic incineration apparatus (50) according to Conventional Example 2. FIG. 2 is a schematic diagram [omitted of the sterilization apparatus (30)].
【0003】上記滅菌処理装置(30)は、滅菌チャンバ
ー(31)内に滅菌対象物(例えば、医療用メスや使い捨
ての注射器、紙おしめや生理用品等の出荷前製品)を密
封し、この滅菌チャンバー(31)内を真空引きした後で
滅菌ガス[G1:例えば可燃性の酸化エチレン(C2H4O)
に不活性ガスである炭酸ガス(CO2)を混入したもの]を
一定時間封入して滅菌処理し、その後、使用済みの上記
滅菌ガスを可燃性用尽ガス(G2)として、必要に応じて
これに空気等を混入して希釈したのち、上記直燃型焼却
処理装置(40)内に導入するように構成されている。な
お、図2中の符号(32)は滅菌チャンバー(31)を開閉
可能に封止する扉、(33)は送風機、(34)は真空引き
及び外気導入兼用の接続口、(35)はドレン口をそれぞ
れ示す。The sterilization apparatus (30) seals an object to be sterilized (for example, a pre-shipment product such as a medical scalpel, a disposable syringe, a paper diaper or a sanitary product) in a sterilization chamber (31), and After evacuating the chamber (31), sterilizing gas [G 1 : for example, flammable ethylene oxide (C 2 H 4 O)]
Mixed with carbon dioxide (CO 2 ), which is an inert gas, for a certain period of time and sterilized. Then, the used sterilized gas is used as a combustible exhaust gas (G 2 ) as necessary. After being mixed with air or the like and diluted, the mixture is introduced into the direct combustion type incineration apparatus (40). Reference numeral (32) in FIG. 2 denotes a door that seals the sterilization chamber (31) so that it can be opened and closed, (33) is a blower, (34) is a connection port for both vacuum evacuation and introduction of outside air, and (35) is a drain. Each mouth is shown.
【0004】上記滅菌処理装置(30)内での滅菌処理に
より不要になった可燃性用尽ガス(G2)は、バッチ方式
により取り出される。即ち、滅菌処理が終了すると、滅
菌対象物を滅菌チャンバー(31)内に置き残したまま
で、複数回にわたり上記可燃性用尽ガス(G2)の取り出
しを繰り返す。これは、滅菌対象物に付着残留する可燃
性用尽ガス(G2)を滅菌チャンバー(31)内で無害の状
態になるまで希釈するためである。なお、通常第1回目
に取り出される上記可燃性用尽ガス(G2)は、自燃可能
な濃度であるが、第2回目以降に取り出される当該可燃
性用尽ガス(G2)は、極端にその濃度が低下しており自
燃不可能である。[0004] The combustible exhaust gas (G 2 ) that has become unnecessary by the sterilization treatment in the sterilization treatment device (30) is taken out by a batch method. That is, when the sterilization process is completed, the combustible exhaust gas (G 2 ) is repeatedly taken out a plurality of times while the object to be sterilized is left in the sterilization chamber (31). This is to dilute the combustible exhaust gas (G 2 ) remaining on the object to be sterilized until it becomes harmless in the sterilization chamber (31). The flammable exhaust gas (G 2 ) usually taken out at the first time has a concentration capable of self-burning, but the flammable exhaust gas (G 2 ) taken out at the second time and thereafter is extremely low. Its concentration is so low that it cannot be burned.
【0005】上記直燃型焼却処理装置(40)は、図2に
示すように、中央部に配置された燃焼室(41a)と、こ
の燃焼室(41a)の一端側に設けられたバーナ(42)
と、その燃焼室(41a)の周囲に形成された予熱室(4
4)と、その予熱室(44)に連通するガス導入口(45)
と、上記燃焼室(41a)の他端側に設けられたガス放出
口(46)とを備えている。上記滅菌処理装置(30)から
排出された可燃性用尽ガス(G2)は、上記ガス導入口(4
5)から導入されて予熱室(44)内で予熱される。予熱
された上記可燃性用尽ガス(G2)は、パンチメタル(4
3)を介して燃焼室(41a)内に流入し、バーナ(42)
へ供給された燃料ガス(G)の火炎とともに燃焼される。
そして無臭・無害の大気放出ガス(G3)となる。[0005] As shown in FIG. 2, the direct combustion type incineration apparatus (40) has a combustion chamber (41a) arranged at the center and a burner (41) provided at one end of the combustion chamber (41a). 42)
And a preheating chamber (4) formed around the combustion chamber (41a).
4) and a gas inlet (45) communicating with the preheating chamber (44).
And a gas discharge port (46) provided on the other end side of the combustion chamber (41a). The combustible exhaust gas (G 2 ) discharged from the sterilization apparatus (30) is supplied to the gas inlet (4).
5) and is preheated in the preheating chamber (44). The preheated combustible exhaust gas (G 2 ) is a punch metal (4
3) into the combustion chamber (41a) via the burner (42).
It is burned with the flame of the fuel gas (G) supplied to the tank.
And to become odorless, non-toxic air emissions gas (G 3).
【0006】上記触媒型焼却処理装置(50)は、図3に
示すように、一端部に配置されたガス導入口(51)と、
予熱のための熱交換器(52)と、バーナを備える加熱室
(53)と、触媒槽(54)と、反応槽(55)と、排気ダク
ト(56)と、上記熱交換器(52)に排熱を供給する排熱
供給部(57)と、ガス放出口(58)とを順に配置して構
成されている。上記滅菌処理装置(30)から排出された
可燃性用尽ガス(G2)は、上記ガス導入口(51)から導
入されて熱交換器(52)で予熱される。そして加熱室
(53)で触媒が安定して反応する下限温度(例えば略2
50℃:以下「基底温度(T1)」という)に加熱され、次
いで触媒槽(54)と反応槽(55)とを通過して酸化分解
されて無臭になる。これにより無臭・無害の大気放出ガ
ス(G3)となる。As shown in FIG. 3, the catalytic incineration apparatus (50) has a gas inlet (51) disposed at one end thereof,
Heating chamber with heat exchanger (52) for preheating and burner
(53), a catalyst tank (54), a reaction tank (55), an exhaust duct (56), an exhaust heat supply section (57) for supplying exhaust heat to the heat exchanger (52), and a gas discharge section. And an outlet (58). The combustible exhaust gas (G2) discharged from the sterilization apparatus (30) is introduced from the gas inlet (51) and preheated in a heat exchanger (52). And heating room
The minimum temperature at which the catalyst reacts stably in (53) (for example, about 2
50 ° C .: hereinafter referred to as “base temperature (T 1 )”, and then pass through the catalyst tank (54) and the reaction tank (55) to be oxidatively decomposed and become odorless. This results in odorless and harmless atmospheric release gas (G 3 ).
【0007】[0007]
【発明が解決しようとする課題】しかしながら、従来の
直燃型焼却処理装置(40)によれば、上記燃焼室(41
a)内の温度を高温に維持する必要があるため、以下の
ような難点がある。即ち、前記滅菌処理装置(30)から
第2回目以降に取り出される可燃性用尽ガス(G2)の濃
度が極端に低下しており自燃不可能であるから、未燃ガ
スを生じさせないように高温雰囲気内で酸化分解させる
必要がある。このため、可燃性用尽ガス(G2)を複数回
にわたり取り出す際の待機時や、上記直燃型焼却処理装
置(40)のプレヒート時においても、上記燃焼室(41
a)内の温度を例えば略760℃等の高温に維持する必
要があり、多量の燃料ガスを消費し、ランニングコスト
が高くつく。However, according to the conventional direct combustion type incineration apparatus (40), the combustion chamber (41)
Since the temperature in a) needs to be maintained at a high temperature, there are the following difficulties. That is, since the concentration of the combustible exhaust gas (G 2 ) taken out from the sterilization apparatus (30) for the second time or later is extremely low and cannot be self-combustible, it is necessary to prevent generation of unburned gas. It is necessary to perform oxidative decomposition in a high-temperature atmosphere. For this reason, even when the combustible exhaust gas (G 2 ) is taken out a plurality of times, or when the direct combustion type incinerator (40) is preheated, the combustion chamber (41) is also used.
It is necessary to maintain the temperature in a) at a high temperature, for example, about 760 ° C., which consumes a large amount of fuel gas and increases running costs.
【0008】他方、上記触媒型焼却処理装置(50)によ
れば、加熱室(53)内の温度が低い基底温度(T1)であ
るため、可燃性用尽ガス(G2)を複数回にわたり取り出
す際の待機時やプレヒート時における燃料の消費量は少
ないが、以下のような難点がある。即ち、前記滅菌処理
装置(30)から第1回目に取り出される可燃性用尽ガス
(G2)の濃度は高く自燃可能であるため、希釈しないで
触媒槽(54)を通すと触媒槽が焼損する。そこで触媒槽
の焼損を回避するため、当該可燃性用尽ガス(G2)を空
気で10〜30倍に希釈して濃度を下げる必要がある。
しかしそうすると希釈した当該可燃性用尽ガス(G2)の
処理量が10〜30倍に増えるため、処理時間が大幅に
延長され、結果的に燃料ガスの処理量も増え、ランニン
グコストが高くつく。On the other hand, according to the catalytic incineration apparatus (50), since the temperature in the heating chamber (53) is a low base temperature (T 1 ), the combustible exhaust gas (G 2 ) is discharged a plurality of times. Although the fuel consumption during standby and preheating when taking out is small, there are the following drawbacks. That is, the combustible exhaust gas taken out of the sterilization apparatus (30) for the first time.
Since the concentration of (G 2 ) is high and it is capable of self-combustion, if it passes through the catalyst tank (54) without dilution, the catalyst tank is burned. Therefore in order to avoid burning of the catalyst vessel, it is necessary to lower the concentration of the combustible for Jin gas (G 2) is diluted to 10 to 30-fold in air.
However, in this case, the processing amount of the diluted combustible exhaust gas (G 2 ) is increased by 10 to 30 times, so that the processing time is greatly extended, and as a result, the processing amount of the fuel gas is also increased and the running cost is increased. .
【0009】本発明はこのような事情に鑑みてなされた
ものであり、その目的は、燃料ガスの消費量及び可燃性
用尽ガスの処理量を抑え、その処理時間を短縮し、ラン
ニングコストの低減を図ることができる可燃性用尽ガス
の焼却装置を提供することにある。The present invention has been made in view of such circumstances, and has as its object to reduce the consumption of fuel gas and the amount of flammable exhaust gas, shorten the processing time, and reduce running costs. It is an object of the present invention to provide a combustible exhaust gas incinerator capable of reducing the amount.
【0010】[0010]
【課題を解決するための手段】上記課題を解決するため
に、本発明は以下のように構成される。即ち、請求項1
に記載の発明は、燃焼室(1a)内でバーナ(2)により可
燃性用尽ガス(G2)を燃焼させるように構成した可燃性
用尽ガスの焼却処理装置において、上記燃焼室(1a)の
下流に触媒槽(21)を設け、上記可燃性用尽ガス(G2)
が自燃不可能な場合には、当該可燃性用尽ガス(G2)を
基底温度(T1)に維持して上記触媒槽(21)で酸化処理
するように構成した、ことを特徴とする。In order to solve the above-mentioned problems, the present invention is configured as follows. That is, claim 1
The burner (2a) burns the combustible exhaust gas (G 2 ) in the combustion chamber (1a) in the combustion chamber (1a). ), A catalyst tank (21) is provided downstream of the flammable exhaust gas (G 2 ).
In the case where is not self-combustible, the flammable exhaust gas (G 2 ) is maintained at the base temperature (T 1 ) and is oxidized in the catalyst tank (21). .
【0011】請求項2に記載の発明は、請求項1に記載
した可燃性用尽ガスの焼却処理装置において、上記燃焼
室(1a)に上記可燃性用尽ガス(G2)の燃焼温度の上昇
を抑制する冷却手段(12)を付設し、上記可燃性用尽ガ
ス(G2)が自燃可能な場合には、上記冷却手段(12)を
作動させて、当該可燃性用尽ガス(G2)の燃焼温度を触
媒保全温度(T2)以下に維持するように構成した、こと
を特徴とする。According to a second aspect of the present invention, there is provided the flammable exhaust gas incineration apparatus according to the first aspect, wherein the combustion temperature of the flammable exhaust gas (G 2 ) is set in the combustion chamber (1a). A cooling means (12) for suppressing the rise is provided, and when the flammable exhaust gas (G 2 ) is self-combustible, the cooling means (12) is operated to activate the flammable exhaust gas (G 2 ). 2 ) The combustion temperature is maintained so as to be lower than the catalyst maintenance temperature (T 2 ).
【0012】請求項3に記載の発明は、請求項2に記載
した可燃性用尽ガスの焼却処理装置において、上記冷却
手段(12)が、上記燃焼室(1a)内に冷却空気(A2)を
給送する送風機(13)と、風量調節手段(14)と、上記
触媒槽(21)の上流側の温度を検出する温度検出手段
(24)とを備え、その検出温度に基づき制御回路(26)
を介して上記送風機(13)と風量調節手段(14)との少
なくともいずれかを駆動制御するように構成した、こと
を特徴とする。According to a third aspect of the present invention, in the incinerator for combustible exhaust gas according to the second aspect, the cooling means (12) includes a cooling air (A 2 ) in the combustion chamber (1a). ), An air volume adjusting means (14), and a temperature detecting means for detecting the temperature on the upstream side of the catalyst tank (21).
And a control circuit based on the detected temperature.
And at least one of the blower (13) and the air volume adjusting means (14) is driven and controlled via the control unit.
【0013】請求項4に記載の発明は、請求項2に記載
した可燃性用尽ガスの焼却処理装置において、上記冷却
手段(12)が、上記燃焼室(1a)内に冷却水噴霧(A3)
を供給する噴霧手段(27)と、その供給水量の調節が可
能な開閉弁(28)と、上記触媒槽(21)の上流側の温度
を検出する温度検出手段(24)とを備え、その検出温度
に基づき制御回路(26)を介して上記開閉弁(27)を開
閉・調量制御するように構成した、ことを特徴とする。
なお、本発明にいう上記可燃性用尽ガスは、可燃性ガス
のみから構成されたガスだけでなく、これらに空気や炭
酸ガス等の不燃性ガスを混入して希釈した状態のガスを
含む。According to a fourth aspect of the present invention, in the flammable exhaust gas incinerator according to the second aspect, the cooling means (12) includes a cooling water spray (A) in the combustion chamber (1a). 3 )
And an on-off valve (28) capable of adjusting the amount of supplied water, and a temperature detecting means (24) for detecting the temperature on the upstream side of the catalyst tank (21). The on-off valve (27) is configured to be opened / closed and metered through a control circuit (26) based on the detected temperature.
The flammable exhaust gas referred to in the present invention includes not only a gas composed of flammable gas alone but also a gas diluted with a mixture of nonflammable gas such as air and carbon dioxide gas.
【0014】[0014]
【発明の作用・効果】請求項1に記載の発明では、可燃
性用尽ガス(G2)が自燃不可能な場合には、当該可燃性
用尽ガス(G2)を基底温度(T1)に維持し、上記燃焼室
(1a)の下流に設けた触媒槽(21)で不燃分を完全に酸
化処理する。つまり、バーナ(2)に供給される燃料の供
給量は、上記可燃性用尽ガス(G2)を基底温度(T1:例
えば略250℃)に維持できれば足りる。これにより、
可燃性用尽ガスの取出し待機時や本装置のプレヒート時
において、燃焼室内を従来例1の直燃型焼却処理装置の
ように高温に維持する必要なく、燃料の消費量を抑え、
ランニングコストの低減を図ることができる。In the invention described in claim 1 [Operation and Effect of the Invention, when combustible for Jin gas (G 2) is capable self燃不is basal temperature (T 1 the combustible for Jin gas (G 2) ), Keep the above combustion chamber
The non-combustible components are completely oxidized in a catalyst tank (21) provided downstream of (1a). That is, the amount of fuel supplied to the burner (2) is sufficient if the combustible exhaust gas (G 2 ) can be maintained at the base temperature (T 1 : for example, approximately 250 ° C.). This allows
During standby for taking out combustible exhaust gas and during preheating of the present apparatus, it is not necessary to maintain the combustion chamber at a high temperature as in the direct combustion type incinerator of the conventional example 1;
The running cost can be reduced.
【0015】請求項2に記載の発明では、上記可燃性用
尽ガス(G2)が自燃可能な場合には、上記燃焼室(1a)
に付設した冷却手段(12)を作動させ、当該燃焼室(1
a)内を冷却して可燃性用尽ガス(G2)を触媒保全温度
(T2)以下に維持して自燃させる。このとき、未燃分が
生じても下流側の触媒槽(21)で完全に酸化処理する。
これにより、従来例2の触媒型焼却処理装置のように可
燃性用尽ガスを希釈する必要がないので、用尽ガスの処
理量を抑え、その処理時間を短縮することができる。ま
た、上記触媒槽(21)の熱負荷が少なく、その焼損を回
避することもできる。According to the second aspect of the present invention, when the combustible exhaust gas (G 2 ) is capable of self-combustion, the combustion chamber (1a)
Activates the cooling means (12) attached to the combustion chamber (1).
a) Cool the inside to convert the combustible exhaust gas (G 2 ) to the catalyst maintenance temperature.
(T 2 ) or less and self-burn. At this time, even if unburned components are generated, the oxidation treatment is completely performed in the downstream catalyst tank (21).
Thus, it is not necessary to dilute the combustible exhaust gas unlike the catalytic incineration apparatus of the second conventional example, so that the amount of exhaust gas to be processed can be suppressed and the processing time can be shortened. Further, the heat load on the catalyst tank (21) is small, and burning of the catalyst tank (21) can be avoided.
【0016】請求項3又は請求項4に記載の発明では、
上記触媒槽(21)の上流側の温度を温度検出手段(24)
で検出し、その検出温度に基づき冷却手段(12)を作動
させる。即ち、上記触媒槽(21)の上流側の検出温度が
前記基底温度(T1:例えば250℃)を大きく超えてい
れば、可燃性用尽ガス(G2)が自燃状態にあることを上
記制御回路(26)が判断し、冷却手段(12)を作動させ
て燃焼室(1a)内を触媒保全温度(T2)以下に維持す
る。これにより触媒槽(21)の焼損を回避しつつ、燃料
の消費量を抑え、ランニングコストの低減を図ることが
できる。According to the third or fourth aspect of the present invention,
The temperature on the upstream side of the catalyst tank (21) is detected by temperature detecting means (24).
The cooling means (12) is operated based on the detected temperature. That is, if the detected temperature on the upstream side of the catalyst tank (21) greatly exceeds the base temperature (T 1 : for example, 250 ° C.), it is determined that the combustible exhaust gas (G 2 ) is in the self-combustion state. The control circuit (26) makes a judgment and activates the cooling means (12) to maintain the inside of the combustion chamber (1a) below the catalyst maintenance temperature (T 2 ). Accordingly, it is possible to suppress fuel consumption and reduce running costs while avoiding burning of the catalyst tank (21).
【0017】[0017]
【発明の実施の形態】以下、本発明の実施形態を添付図
面に基づいて説明する。図1は本発明の実施形態に係る
可燃性用尽ガスの焼却処理装置の概要図である。この焼
却処理装置は、耐熱ケーシング(1)で構成された燃焼室
(1a)と、その燃焼室(1a)内で燃料ガス(G1)及び可
燃性用尽ガス(G2)を燃焼させるバーナ(2)と、上記燃
焼室(1a)内における可燃性用尽ガス(G2)の燃焼温度
の上昇を抑制する冷却手段(12)と、上記燃焼室(1a)
の下流で触媒処理部(20)内に設けられた触媒槽(21)
と、ガス放出口(22)を備えている。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic diagram of a combustible exhaust gas incineration apparatus according to an embodiment of the present invention. This incinerator has a combustion chamber composed of a heat-resistant casing (1).
(1a), a burner (2) for burning the fuel gas (G 1 ) and the combustible exhaust gas (G 2 ) in the combustion chamber (1a), and a combustible exhaust gas in the combustion chamber (1a). A cooling means (12) for suppressing an increase in the combustion temperature of the gas (G 2 ); and the combustion chamber (1a)
(21) provided in the catalyst processing section (20) downstream of
And a gas outlet (22).
【0018】上記バーナ(2)は、可燃性用尽ガス(G2)
の導入口(4)を有し、上記燃焼室(1a)内にその先端部
を突入して設けられたバーナ本体(3)と、このバーナ本
体(3)内に同軸状に挿入された燃焼エアー導入筒(5)
と、この燃焼エアー導入筒(5)内に同軸状に挿入された
燃料ガス導入筒(6)とを備え、上記燃焼室(1a)内で可
燃性用尽ガス(G2)燃焼させるように構成されている。The burner (2) is provided with a combustible exhaust gas (G 2 ).
A burner body (3) provided with an inlet port (4) of the same type and having a tip portion protruding into the combustion chamber (1a), and a combustion chamber coaxially inserted into the burner body (3). Air introduction cylinder (5)
And a fuel gas introducing cylinder (6) coaxially inserted into the combustion air introducing cylinder (5) so that the combustible exhaust gas (G 2 ) is burned in the combustion chamber (1a). It is configured.
【0019】上記バーナ本体(3)の燃焼室内側の先端部
外周には、上記冷却手段(12)により給送されてきた冷
却空気(A2)を上記燃焼室(1a)内に拡散させて流入さ
せる多孔板〔パンチメタル(11)〕が装着されている。
また、上記燃料ガス導入筒(6)の中心軸線上には、長い
点火電極(7)が挿入され、この点火電極(7)と燃料ガス
導入筒(6)とを基端筒部(8)で支持し、上記点火電極
(7)を点火用トランス(10)に導電連結している。The cooling air (A 2 ) supplied by the cooling means (12) is diffused into the combustion chamber (1a) on the outer periphery of the tip of the burner body (3) on the side of the combustion chamber. A perforated plate (punch metal (11)) to be supplied is mounted.
A long ignition electrode (7) is inserted on the center axis of the fuel gas introduction cylinder (6), and the ignition electrode (7) and the fuel gas introduction cylinder (6) are connected to a base end cylinder (8). Supported by the ignition electrode
(7) is conductively connected to an ignition transformer (10).
【0020】上記冷却手段(12)は、上記燃焼室(1a)
内に冷却空気(A2)を給送する送風機(13)と、風量調
節手段であるダンパ(14)と、そのダンパ(14)を駆動
するダンパ駆動手段(15)と、前記触媒槽(21)の上流
側の温度を検出する温度検出手段(24)とを備え、その
検出温度に基づき、制御回路(26)により上記送風機
(13)の風量を調整したり、ダンパ駆動手段(15)を介
して上記ダンパ(14)を調量制御するように構成されて
いる。The cooling means (12) is provided in the combustion chamber (1a).
A blower (13) for supplying cooling air (A 2 ) into the inside, a damper (14) as an air volume adjusting means, a damper driving means (15) for driving the damper (14), and the catalyst tank (21). ) And a temperature detecting means (24) for detecting the temperature on the upstream side of the blower.
The configuration is such that the air volume of (13) is adjusted and the damper (14) is metered through the damper driving means (15).
【0021】即ち、上記触媒槽(21)の上流側の検出温
度が当該触媒が安定に反応する基底温度(T1:例えば2
50℃)を超えていなければ、上記可燃性用尽ガス(G2)
が自燃不可能な濃度であると判断し、その不燃ガスを上
記触媒槽(21)で完全に処理する。また、上記検出温度
が基底温度(T1)を大きく超えていれば、当該可燃性用
尽ガス(G2)が自燃状態にあると判断し、例えば上記ダ
ンパ(14)の開度を大きくする等、冷却手段(12)を作
動させて燃焼室(1a)内への冷却空気(A2)の導入量を
増加させ、これにより触媒槽(21)を通過するガスの温
度を触媒の耐熱可能な触媒保全温度(T2:略600℃)
以下に維持し、当該触媒槽(21)の熱負荷を軽減する。That is, the detected temperature on the upstream side of the catalyst tank (21) is the base temperature (T 1 : for example, 2) at which the catalyst reacts stably.
50 ° C), the combustible exhaust gas (G 2 )
Is determined to be a concentration at which self-burning is impossible, and the non-combustible gas is completely treated in the catalyst tank (21). If the detected temperature greatly exceeds the base temperature (T 1 ), it is determined that the combustible exhaust gas (G 2 ) is in a self-combustion state, and for example, the opening degree of the damper (14) is increased. Activate the cooling means (12) to increase the amount of cooling air (A 2 ) introduced into the combustion chamber (1a), and thereby reduce the temperature of the gas passing through the catalyst tank (21) to the heat resistance of the catalyst. Catalyst maintenance temperature (T 2 : about 600 ° C)
The heat load on the catalyst tank (21) is reduced by maintaining the temperature below.
【0022】これにより触媒槽(21)の焼損を回避しつ
つ、燃料の消費量を抑え、ランニングコストの低減を図
ることができる。即ち、可燃性用尽ガスの取出し待機時
や本装置のプレヒート時において、燃焼室(1a)内を直
燃型焼却処理装置のように高温に維持する必要がないの
で、燃料の消費量を抑え、ランニングコストの低減を図
ることができる。また、触媒型焼却処理装置のように可
燃性用尽ガスを希釈する必要がないので、当該用尽ガス
の処理量を抑え、その処理時間を短縮することができ
る。Thus, the fuel consumption can be suppressed and the running cost can be reduced while avoiding burning of the catalyst tank (21). That is, it is not necessary to maintain the inside of the combustion chamber (1a) at a high temperature as in a direct combustion type incinerator during standby for taking out combustible exhaust gas or during preheating of the present apparatus, so that fuel consumption is suppressed. In addition, the running cost can be reduced. Further, since it is not necessary to dilute the combustible exhaust gas unlike the catalytic incineration apparatus, the amount of the exhaust gas to be processed can be suppressed and the processing time can be shortened.
【0023】前記触媒処理部(20)とガス放出口(22)
との間には、送風機(13)で給送された冷却空気(A2)
の一部分を導入するエアー導入口(23)が設けられてい
る。上記触媒槽(21)を通過するガスの温度を触媒保全
温度(T2)以下に維持しつつ、可燃性用尽ガス(G2)を自
燃させる際には、上記触媒槽(21)の下流側の温度を温
度検出手段(24)で検出することに基づき、上記制御回
路(26)によりダンパ(17)の開度を調節して無臭無害
の放出ガス(G3)の温度を十分に低下させる。なお、図
1中の符号16は冷却空気の導入口、18は紫外線光電
官を備える火炎監視装置、19はのぞき窓を示す。The catalyst processing section (20) and the gas discharge port (22)
And the cooling air (A 2 ) supplied by the blower (13).
An air inlet (23) for introducing a part of the air is provided. When the flammable exhaust gas (G 2 ) is self-burned while maintaining the temperature of the gas passing through the catalyst tank (21) at or below the catalyst maintenance temperature (T 2 ), the downstream of the catalyst tank (21) is used. The temperature of the odorless and harmless released gas (G 3 ) is sufficiently lowered by adjusting the opening of the damper (17) by the control circuit (26) based on the detection of the temperature on the side by the temperature detecting means (24). Let it. In FIG. 1, reference numeral 16 denotes an inlet for cooling air, 18 denotes a flame monitoring device provided with an ultraviolet photoelectric switch, and 19 denotes a viewing window.
【0024】上記冷却手段(12)に代えて、例えば上記
燃焼室(1a)内に仮想線で示す噴霧手段(27)と、その
供給水量の調節が可能な開閉弁(28)と、上記触媒槽
(21)の上流側の温度を検出する温度検出手段(24)と
を設けてもよい。この場合には、温度検出手段(24)が
検出した温度に基づき、制御回路(26)を介して上記開
閉弁(27)を開閉・調量制御して、上記燃焼室(1a)内
に適量の冷却水噴霧(A3)を供給し、当該燃焼室(1a)
内を前記触媒保全温度(T2)以下に維持しながら、可燃
性用尽ガス(G2)を自燃させる。また、不燃分は上記触
媒槽(21)により完全に酸化処理する。Instead of the cooling means (12), for example, a spray means (27) indicated by a phantom line in the combustion chamber (1a), an on-off valve (28) capable of adjusting the amount of supplied water, Tank
Temperature detecting means (24) for detecting the temperature on the upstream side of (21) may be provided. In this case, based on the temperature detected by the temperature detecting means (24), the on-off valve (27) is opened / closed and metered through a control circuit (26) so that an appropriate amount of gas is stored in the combustion chamber (1a). Of cooling water spray (A 3 ) of the combustion chamber (1a)
While maintaining the temperature below the catalyst maintenance temperature (T 2 ), the combustible exhaust gas (G 2 ) is self-combusted. Further, the non-combustible components are completely oxidized by the catalyst tank (21).
【0025】この発明は上記の実施形態に限定されるも
のではなく、前記滅菌処理装置(30)は必ずしも必要と
しない。また、本発明に係る焼却処理装置は、臭気ガス
や滅菌処理済みのガスに限らず、環境汚染につながる多
種多様な可燃性用尽ガスの焼却処理に適用可能である。
更に、例えば滅菌ガスが溶け込んだ廃水など、可燃性用
尽ガスを含む液体を、上記冷却手段(12)を構成する噴
霧手段(27)により燃焼室(1a)内に噴霧させて焼却す
ることも可能である。The present invention is not limited to the above embodiment, and the sterilization apparatus (30) is not always required. In addition, the incineration apparatus according to the present invention is applicable not only to odorous gas and sterilized gas, but also to incineration of a wide variety of combustible exhaust gases that lead to environmental pollution.
Further, a liquid containing a combustible exhaust gas, such as wastewater in which a sterilizing gas is dissolved, may be sprayed into the combustion chamber (1a) by the spraying means (27) constituting the cooling means (12) for incineration. It is possible.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の実施形態に係る焼却処理装置の概要図
である。FIG. 1 is a schematic diagram of an incineration apparatus according to an embodiment of the present invention.
【図2】従来例1に係る直燃型焼却処理装置と滅菌処理
装置とを関連付けて示す概要図である。FIG. 2 is a schematic diagram showing a direct combustion type incineration apparatus and a sterilization apparatus according to Conventional Example 1 in association with each other.
【図3】従来例2に係る触媒型焼却処理装置の模式図で
ある。FIG. 3 is a schematic diagram of a catalytic incineration apparatus according to Conventional Example 2.
【符号の説明】 1a…燃焼室、2…バーナ、12…冷却手段、13…送
風機、14…風量調節手段、21…触媒槽、24…温度
検出手段、26…制御回路、27…噴霧手段、28…開
閉弁、A2…冷却空気、A3…冷却水噴霧、G1…燃料ガ
ス、G2…可燃性用尽ガス、T1…基底温度、T2…触媒
保全温度。[Description of Signs] 1a: combustion chamber, 2: burner, 12: cooling means, 13: blower, 14: air volume adjusting means, 21: catalyst tank, 24: temperature detecting means, 26: control circuit, 27: spraying means, 28 ... off valve, A 2 ... cooling air, A 3 ... cooling water spray, G 1 ... fuel gas, G 2 ... combustible for Jin gas, T 1 ... basal temperature, T 2 ... catalyst conservation temperature.
Claims (4)
性用尽ガス(G2)を燃焼させるように構成した可燃性用
尽ガスの焼却処理装置において、 上記燃焼室(1a)の下流に触媒槽(21)を設け、上記可
燃性用尽ガス(G2)が自燃不可能な場合には、当該可燃
性用尽ガス(G2)を基底温度(T1)に維持して上記触媒槽
(21)で酸化処理するように構成した、ことを特徴とす
る可燃性用尽ガスの焼却処理装置。An incinerator for combustible exhaust gas configured to burn a combustible exhaust gas (G 2 ) in a combustion chamber (1a) with a burner (2) in the combustion chamber (1a). If the flammable exhaust gas (G 2 ) is not self-combustible, the flammable exhaust gas (G 2 ) is maintained at the base temperature (T 1 ). Above the catalyst tank
An incineration apparatus for combustible exhaust gas, wherein the apparatus is configured to perform oxidation treatment in (21).
却処理装置において、 上記燃焼室(1a)に上記可燃性用尽ガス(G2)の燃焼温
度の上昇を抑制する冷却手段(12)を付設し、上記可燃
性用尽ガス(G2)が自燃可能な場合には、上記冷却手段
(12)を作動させて、当該可燃性用尽ガス(G2)の燃焼
温度を触媒保全温度(T2)以下に維持するように構成し
た、ことを特徴とする可燃性用尽ガスの焼却処理装置。2. The incineration treatment apparatus for combustible exhaust gas according to claim 1, wherein said combustion chamber (1a) includes a cooling means for suppressing a rise in the combustion temperature of said combustible exhaust gas (G 2 ). 12), and if the combustible exhaust gas (G 2 ) is self-combustible, the cooling means
(12) is operated to maintain the combustion temperature of the combustible exhaust gas (G 2 ) at or below the catalyst maintenance temperature (T 2 ). Processing equipment.
却処理装置において、 上記冷却手段(12)は、上記燃焼室(1a)内に冷却空気
(A2)を給送する送風機(13)と、風量調節手段(14)
と、上記触媒槽(21)の上流側の温度を検出する温度検
出手段(24)とを備え、その検出温度に基づき制御回路
(26)を介して上記送風機(13)と風量調節手段(14)
との少なくともいずれかを駆動制御するように構成し
た、ことを特徴とする可燃性用尽ガスの焼却処理装置。3. The incineration treatment apparatus for combustible exhaust gas according to claim 2, wherein said cooling means (12) is provided with cooling air in said combustion chamber (1a).
A blower (13) for feeding (A 2 ) and an air volume adjusting means (14)
And a temperature detecting means (24) for detecting the temperature on the upstream side of the catalyst tank (21), and a control circuit based on the detected temperature.
The air blower (13) and the air volume adjusting means (14) via (26)
Wherein the drive control of at least one of the above is performed.
却処理装置において、 上記冷却手段(12)は、上記燃焼室(1a)内に冷却水噴
霧(A3)を供給する噴霧手段(27)と、その供給水量を
調節可能な開閉弁(28)と、上記触媒槽(21)の上流側
の温度を検出する温度検出手段(24)とを備え、その検
出温度に基づき制御回路(26)を介して上記開閉弁(2
7)を開閉・調量制御するように構成した、ことを特徴
とする可燃性用尽ガスの焼却処理装置。4. An incineration apparatus for combustible exhaust gas according to claim 2, wherein said cooling means (12) supplies a cooling water spray (A 3 ) into said combustion chamber (1a). (27), an on-off valve (28) capable of adjusting the amount of supplied water, and temperature detecting means (24) for detecting the temperature on the upstream side of the catalyst tank (21), and a control circuit based on the detected temperature. (26) via the on-off valve (2)
7. An incineration treatment apparatus for combustible exhaust gas, wherein the apparatus is configured to control opening / closing and metering of 7).
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JP2000236553A JP3728394B2 (en) | 2000-08-04 | 2000-08-04 | Incinerator for combustible exhaust gas |
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JP2000236553A JP3728394B2 (en) | 2000-08-04 | 2000-08-04 | Incinerator for combustible exhaust gas |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100780231B1 (en) * | 2007-05-09 | 2007-11-27 | 주식회사 대우엔지니어링 | Volatile organic compounds combustion unit |
CN102840590A (en) * | 2011-06-21 | 2012-12-26 | 华懋科技股份有限公司 | Catalytic thermal oxidizer with sintering prevention function and sintering prevention method thereof |
JPWO2013145867A1 (en) * | 2012-03-29 | 2015-12-10 | 株式会社村田製作所 | Exhaust gas treatment method and exhaust gas treatment apparatus |
CN109539287A (en) * | 2019-01-15 | 2019-03-29 | 无锡熙源工程技术有限公司 | A kind of exhaust treatment system and its processing method of silver method production formaldehyde plant |
-
2000
- 2000-08-04 JP JP2000236553A patent/JP3728394B2/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100780231B1 (en) * | 2007-05-09 | 2007-11-27 | 주식회사 대우엔지니어링 | Volatile organic compounds combustion unit |
CN102840590A (en) * | 2011-06-21 | 2012-12-26 | 华懋科技股份有限公司 | Catalytic thermal oxidizer with sintering prevention function and sintering prevention method thereof |
JPWO2013145867A1 (en) * | 2012-03-29 | 2015-12-10 | 株式会社村田製作所 | Exhaust gas treatment method and exhaust gas treatment apparatus |
CN109539287A (en) * | 2019-01-15 | 2019-03-29 | 无锡熙源工程技术有限公司 | A kind of exhaust treatment system and its processing method of silver method production formaldehyde plant |
CN109539287B (en) * | 2019-01-15 | 2024-02-27 | 无锡熙源工程技术有限公司 | Tail gas treatment system and method for formaldehyde production device by silver method |
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