JPS6125965B2 - - Google Patents

Info

Publication number
JPS6125965B2
JPS6125965B2 JP8867082A JP8867082A JPS6125965B2 JP S6125965 B2 JPS6125965 B2 JP S6125965B2 JP 8867082 A JP8867082 A JP 8867082A JP 8867082 A JP8867082 A JP 8867082A JP S6125965 B2 JPS6125965 B2 JP S6125965B2
Authority
JP
Japan
Prior art keywords
zone
temperature
combustion
drying
drying zone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP8867082A
Other languages
Japanese (ja)
Other versions
JPS58205014A (en
Inventor
Motofumi Harada
Junsuke Nishimori
Yoshio Tsutsumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chugai Ro Co Ltd
Original Assignee
Chugai Ro Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chugai Ro Co Ltd filed Critical Chugai Ro Co Ltd
Priority to JP8867082A priority Critical patent/JPS58205014A/en
Publication of JPS58205014A publication Critical patent/JPS58205014A/en
Publication of JPS6125965B2 publication Critical patent/JPS6125965B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/50Control or safety arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)

Description

【発明の詳細な説明】 本発明は堅形多段式汚泥焼却炉の燃焼方法に関
するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion method for a vertical multistage sludge incinerator.

従来、この種堅形多段式汚泥焼却炉の燃焼方法
としては、たとえば、特公昭54−11629号公報等
にて種々提案されている。
Conventionally, various combustion methods for this type of solid-type multi-stage sludge incinerator have been proposed, for example, in Japanese Patent Publication No. 11629/1983.

しかしながら、前記公報のものでは、燃焼帯温
度を一定とするために、燃焼帯の温度に対応して
排ガスを燃焼帯へ循環させ、比較的低温の排ガス
により燃焼帯で発生する発生熱を吸収させるよう
になつている。かかる方法では、燃焼帯における
バーナは、燃焼帯温度に直接関係なく焚くもので
あるため、燃焼帯温度が一定せず、かつ、助燃料
の節約は図れない。
However, in the above publication, in order to keep the temperature of the combustion zone constant, exhaust gas is circulated to the combustion zone in accordance with the temperature of the combustion zone, and the heat generated in the combustion zone is absorbed by the relatively low temperature exhaust gas. It's becoming like that. In such a method, since the burner in the combustion zone is fired regardless of the combustion zone temperature, the combustion zone temperature is not constant and it is not possible to save the auxiliary fuel.

また、乾燥負荷変動時、特に汚泥投入開始時に
は、乾燥帯温度の変動が大きく炉体を損傷しやす
い。さらに、循環ガス量は乾燥負荷に関係なく調
節されるため、燃焼帯に供給される排ガス温度が
一定せず、十分な炉温コントロールが得られな
い。
Furthermore, when the drying load fluctuates, especially when starting to feed sludge, the temperature of the drying zone fluctuates greatly, easily damaging the furnace body. Furthermore, since the amount of circulating gas is adjusted regardless of the drying load, the temperature of the exhaust gas supplied to the combustion zone is not constant, making it impossible to obtain sufficient furnace temperature control.

なお、冷却帯には高温冷却空気が供給されるた
め、汚泥にクロムを含有するものであれば、還元
雰囲気で燃焼すると、一旦、無害な3価クロムと
なつたものが冷却帯で酸化されて6価クロムとな
り、公害上の問題を生じるという欠点を有してい
る。
In addition, since high-temperature cooling air is supplied to the cooling zone, if the sludge contains chromium, if it is burned in a reducing atmosphere, the sludge that has become harmless trivalent chromium will be oxidized in the cooling zone. It has the disadvantage of becoming hexavalent chromium and causing pollution problems.

本発明は、前記欠点を除去するためになされた
もので、排ガスを冷却帯に循環させることによ
り、冷却帯を低酸素雰囲気として前記6価クロム
の発生を防止するとともに、燃焼帯の温度により
バーナへの助燃料の供給量そのものを可変として
省エネルギーを図る一方、乾燥帯または排ガス温
度と燃焼帯温度、あるいは乾燥帯温度により循環
ガス量を変動させて少なくとも冷却帯へ循環させ
て、常に炉温を一定に保持し、炉の寿命を長くす
ることのできる堅形多段式汚泥焼却炉の燃焼方法
を提供することを目的とする。
The present invention was made in order to eliminate the above-mentioned drawbacks, and by circulating the exhaust gas through the cooling zone, the cooling zone is made into a low-oxygen atmosphere to prevent the generation of hexavalent chromium, and the temperature of the combustion zone is changed to prevent the generation of hexavalent chromium. While trying to save energy by making the amount of auxiliary fuel supplied to the furnace itself variable, the amount of circulating gas is varied depending on the drying zone or exhaust gas temperature and combustion zone temperature, or the drying zone temperature and is circulated at least to the cooling zone to constantly maintain the furnace temperature. It is an object of the present invention to provide a combustion method for a vertical multi-stage sludge incinerator that can be maintained constant and extend the life of the furnace.

つぎに、本発明を実施例である図面にしたがつ
て説明する。
Next, the present invention will be explained with reference to drawings which are embodiments.

第1図は第1発明を実施する堅形多段式汚泥焼
却炉を示す。
FIG. 1 shows a vertical multistage sludge incinerator implementing the first invention.

炉本体1は、上方の乾燥帯2、中間の燃焼帯3
および下方の冷却帯4とからなり、本体1内には
多段の固定炉床(図示せず)が設けられ、この固
定炉床の中心を貫通して中空の回転軸5が設けら
れている。そして、前記回転軸5には、投入口6
から固定炉床上に投入された汚泥を移動させる撹
拌アーム(図示せず)が取付けられ、前記炉内に
投入された汚泥は、撹拌アームにより固定炉床上
を撹拌されながら下段の固定炉床に落下しつつ乾
燥され、順次、燃焼帯3でその可燃物が焼却さ
れ、冷却帯4から図示しない排出手段により炉外
に排出される。一方、回転軸5を出た高温空気の
一部は排出され、残りの空気は冷却帯4へ循環
し、燃焼帯3におけるバーナ7の燃焼用空気に供
されるようになつている。
The furnace body 1 has an upper drying zone 2 and an intermediate combustion zone 3.
A multistage fixed hearth (not shown) is provided within the main body 1, and a hollow rotating shaft 5 is provided passing through the center of the fixed hearth. The rotating shaft 5 has an input port 6.
An agitation arm (not shown) is attached to move the sludge introduced from above onto the fixed hearth, and the sludge introduced into the furnace falls onto the lower fixed hearth while being stirred over the fixed hearth by the agitation arm. The combustible materials are sequentially incinerated in the combustion zone 3 and discharged from the cooling zone 4 to the outside of the furnace by a discharge means (not shown). On the other hand, a portion of the high-temperature air that has exited the rotating shaft 5 is discharged, and the remaining air is circulated to the cooling zone 4 to be used as combustion air for the burner 7 in the combustion zone 3.

また、炉内の排ガスは乾燥帯2の上部から排気
ダクト8を介して排出されるとともに、その一部
は循環ダクト9を介して冷却帯4へ調節弁V1
開度に応じて循環し、循環ダクト9から分岐ダク
ト17を介して乾燥帯2の下方段へ調節弁V6
開度に応じて循環するものである。前記調節弁
V1は前記燃焼帯3の温度により作動する温度調
節計10と、排ガスの温度により作動する温度調
節計11とからの調節信号のうち、循環排ガス量
を大とする調節信号をセレクトして開度が調節さ
れる。すなわち、乾燥帯2あるいは燃焼帯3のう
ち、いずれか所定温度より差の大きい方の調節信
号に対応して調節弁V1の開度が決められ、比較
的高温な排ガスが冷却帯4へ供給される。したが
つて、排ガスにより乾燥帯2は昇温し、燃焼帯3
は降温することになる。
Further, the exhaust gas in the furnace is exhausted from the upper part of the drying zone 2 through the exhaust duct 8, and a part of it is circulated through the circulation duct 9 to the cooling zone 4 according to the opening degree of the control valve V1 . The water is circulated from the circulation duct 9 to the lower stage of the drying zone 2 via the branch duct 17 depending on the opening degree of the control valve V6 . said control valve
V 1 selects and opens the control signal that increases the amount of circulating exhaust gas from among the control signals from the temperature controller 10 that operates according to the temperature of the combustion zone 3 and the temperature controller 11 that operates according to the temperature of the exhaust gas. The degree is adjusted. That is, the opening degree of the control valve V 1 is determined in response to the control signal of either the drying zone 2 or the combustion zone 3, whichever has a larger difference in temperature than a predetermined temperature, and relatively high temperature exhaust gas is supplied to the cooling zone 4. be done. Therefore, the temperature of drying zone 2 increases due to exhaust gas, and combustion zone 3 increases.
The temperature will drop.

また、前記調節弁V5は乾燥帯2の温度により
作動する温度調節計18からの調節信号により開
度調節される。
Further, the opening degree of the control valve V 5 is controlled by a control signal from a temperature controller 18 which is activated depending on the temperature of the drying zone 2 .

一方、前記バーナ7は燃焼帯3の温度に基づく
温度調節計12により、燃焼帯温度が所定温度に
なるように供給助燃料がコントロールされるよう
になつている。なお、13は炉圧調節計で、炉圧
に応じて調節弁V2を開閉する。14は排ガス中
の酸素濃度調節計で、排ガス中の酸素濃度が所定
濃度になるよう調節弁V8,V4を開閉する。15
は前記回転軸5に冷却空気を供給する軸冷却フア
ン、16は排ガス循環フアンである。
On the other hand, in the burner 7, the supply of auxiliary fuel is controlled by a temperature controller 12 based on the temperature of the combustion zone 3 so that the temperature of the combustion zone becomes a predetermined temperature. In addition, 13 is a furnace pressure regulator, which opens and closes the control valve V2 according to the furnace pressure. Reference numeral 14 denotes an oxygen concentration controller in the exhaust gas, which opens and closes control valves V 8 and V 4 so that the oxygen concentration in the exhaust gas reaches a predetermined concentration. 15
1 is a shaft cooling fan that supplies cooling air to the rotating shaft 5, and 16 is an exhaust gas circulation fan.

前記構成において、いま、投入口6から汚泥が
投入される前、炉温が所定温度に達するまでバー
ナ7が作動する。そして、汚泥が投入されると、
乾燥帯2の乾燥負荷が大きくなり、乾燥帯2の温
度(排ガス温度)が低下する。そのため、調節弁
V1は温度調節計11からの信号により開口さ
れ、排ガスが冷却帯4へ循環し、乾燥帯2の温度
が所定温度に維持される。なお、この場合、燃焼
帯3の温度は降下するが、温度調節計12により
バーナ7への助燃料を調節し、燃焼帯3も所定温
度に維持されることになる。また、乾燥帯温度が
高く、燃焼帯温度も高い場合は、制御量の多い方
の温度に対応して排ガス循環量は調節される。ま
た、乾燥負荷の面からみると、乾燥負荷が低化し
て燃焼帯3の温度が上昇し、乾燥帯2で汚泥が燃
焼するように乾燥帯下方段の温度が高くなると、
調節弁V5は温度調節計18からの信号により開
度調節され、分岐ダクト17からの循環ガスによ
り乾燥帯2の下方段の温度を低下させ、乾燥帯で
の燃焼を阻止する。この場合、多段炉排ガスの温
度も上昇することがあるが、そのような場合は、
冷却帯4への排ガスの循環量を燃焼帯3の温度で
制御することになり、燃焼帯3の温度の異常上昇
を防ぐことができる。さらに、汚泥の投入量が減
少すれば、乾燥帯上部温度が上昇し、焼却熱が変
わらないと前記とは逆に調節弁V1は閉鎖方向に
なり、汚泥の投入が停止すれば、最後の汚泥が過
乾燥となつて排ガス温度が急激に上昇して調節弁
V1は閉じられることになる。
In the above configuration, before sludge is introduced from the input port 6, the burner 7 is operated until the furnace temperature reaches a predetermined temperature. Then, when the sludge is added,
The drying load on the drying zone 2 increases, and the temperature of the drying zone 2 (exhaust gas temperature) decreases. Therefore, the control valve
V1 is opened by a signal from the temperature controller 11, the exhaust gas is circulated to the cooling zone 4, and the temperature of the drying zone 2 is maintained at a predetermined temperature. In this case, although the temperature of the combustion zone 3 drops, the temperature controller 12 adjusts the amount of auxiliary fuel to the burner 7, so that the combustion zone 3 is also maintained at a predetermined temperature. Furthermore, when the drying zone temperature is high and the combustion zone temperature is also high, the exhaust gas circulation amount is adjusted in accordance with the temperature that has a larger control amount. Also, from the perspective of drying load, when the drying load decreases and the temperature of the combustion zone 3 rises, and the temperature in the lower stage of the drying zone increases so that the sludge burns in the drying zone 2,
The opening of the control valve V5 is adjusted by a signal from the temperature controller 18, and the circulating gas from the branch duct 17 lowers the temperature in the lower stage of the drying zone 2, thereby preventing combustion in the drying zone. In this case, the temperature of the multi-stage furnace exhaust gas may also rise;
The amount of circulating exhaust gas to the cooling zone 4 is controlled by the temperature of the combustion zone 3, and an abnormal rise in the temperature of the combustion zone 3 can be prevented. Furthermore, if the amount of sludge input decreases, the temperature in the upper part of the drying zone increases, and if the incineration heat remains unchanged, the control valve V 1 will be in the closing direction, contrary to the above, and if the sludge input stops, the final The sludge becomes overdried and the exhaust gas temperature rises rapidly, causing the control valve to shut down.
V 1 will be closed.

つまり、乾燥負荷および燃焼負荷の変動に見合
つた量の排ガスが冷却帯4へ供給されるととも
に、バーナ7への助燃料の供給も調節され、乾燥
帯2の温度を常に一定とすることができ、かつ、
燃焼帯3の燃焼位置を一定に保ち、燃焼帯3の温
度をも常に一定とすることができる。
In other words, an amount of exhaust gas commensurate with fluctuations in the drying load and combustion load is supplied to the cooling zone 4, and the supply of auxiliary fuel to the burner 7 is also adjusted, so that the temperature of the drying zone 2 can always be kept constant. ,and,
The combustion position of the combustion zone 3 can be kept constant, and the temperature of the combustion zone 3 can also be kept constant.

第2図は第2発明を実施する堅形多段式汚泥焼
却炉を示し、極低水分・高発熱量の汚泥を焼却す
る場合で、乾燥帯2の上部から排ガスを排気ダク
ト8で排気する一方、乾燥帯2の下方段部分から
排ガスの一部を取出して冷却塔21で冷却したの
ち、冷却帯4へ循環ダクト19を介して循環する
とともに、その一部を分岐ダクト20を介して乾
燥帯2の中間段部分へ循環させるようにしたもの
である。
FIG. 2 shows a vertical multi-stage sludge incinerator according to the second invention, in which sludge with extremely low moisture content and high calorific value is incinerated. A part of the exhaust gas is taken out from the lower part of the drying zone 2 and cooled in the cooling tower 21, and then circulated to the cooling zone 4 via the circulation duct 19, and a part of it is passed through the branch duct 20 to the drying zone. It is designed to circulate to the intermediate stage portion of No. 2.

なお、前記乾燥帯2からの排ガス取出量および
乾燥帯2への循環量は、乾燥帯2の下方段温度に
基づく温度調節計22により開閉される調節弁
V6,V7により調節されるものである。
Note that the amount of exhaust gas taken out from the drying zone 2 and the amount of circulation to the drying zone 2 are determined by a control valve that is opened and closed by a temperature controller 22 based on the temperature of the lower stage of the drying zone 2.
It is adjusted by V 6 and V 7 .

極低水分・高発熱量の汚泥にあつては、自燃性
が高く、乾燥帯2が異常昇温するため、自燃する
乾燥帯2の下方段部分からその温度に見合う量の
排ガスを取出して冷却し、この冷却した排ガスを
乾燥帯2に循環させて乾燥帯2を所定温度とする
とともに、汚泥の自燃を極力抑えて、燃焼帯3で
燃焼させるので、乾燥帯2および燃焼帯3の温度
を所定温度に維持するばかりか、燃焼帯3での燃
焼位置を一定とし、炉温制御を容易になすことが
できる。なお、汚泥の投入開始時・終了時におい
ても温度調節計22の動作により前記第1発明と
同様、自動的に炉温を制御されるものである。そ
の他は第1発明と同様であるため説明を省略す
る。
Sludge with extremely low moisture content and high calorific value is highly self-combustible and causes an abnormal temperature rise in the drying zone 2. Therefore, an amount of exhaust gas corresponding to the temperature is extracted from the lower part of the drying zone 2, where it is self-combustible, and cooled. This cooled exhaust gas is circulated to the drying zone 2 to bring the drying zone 2 to a predetermined temperature, and the sludge is combusted in the combustion zone 3 while suppressing self-combustion of the sludge as much as possible. Not only can the predetermined temperature be maintained, but also the combustion position in the combustion zone 3 can be kept constant, making it possible to easily control the furnace temperature. Incidentally, the furnace temperature is automatically controlled by the operation of the temperature controller 22 at the start and end of sludge charging, similarly to the first invention. The rest is the same as the first invention, so the explanation will be omitted.

以上の説明で明らかなように、本発明によれ
ば、排ガスが冷却帯に供給され、冷却帯が低酸素
雰囲気となつているため、クロムを含有する汚泥
を還元雰囲気中で焼却し、クロムを無害な3価ク
ロムとする場合であつても、冷却帯で酸化するこ
となく無害な状態で炉外に排出することができ
る。
As is clear from the above explanation, according to the present invention, exhaust gas is supplied to the cooling zone, and the cooling zone is in a low-oxygen atmosphere, so sludge containing chromium is incinerated in a reducing atmosphere, and chromium is removed. Even when harmless trivalent chromium is used, it can be discharged out of the furnace in a harmless state without being oxidized in the cooling zone.

また、燃焼帯のバーナは、燃焼帯の温度により
助燃料が増減し、常に適量の助燃料が使用される
ため、従来のものに比して助燃料を16%以上節約
することができる。
In addition, in the combustion zone burner, the amount of auxiliary fuel increases or decreases depending on the temperature of the combustion zone, and the appropriate amount of auxiliary fuel is always used, making it possible to save more than 16% of auxiliary fuel compared to conventional burners.

さらに、高水分低発熱量汚泥、低水分・高発熱
量汚泥の場合にも、汚泥投入開始時・終了時にお
いて、自動的に乾燥帯の温度が制御され、かつ、
燃焼帯の温度も制御されるため、炉温の急激な変
動がない。したがつて、炉の耐火材、金物等の耐
久性が向上し、炉の寿命を長くすることができ
る。
Furthermore, even in the case of high moisture, low calorific value sludge, and low moisture, high calorific value sludge, the temperature of the drying zone is automatically controlled at the start and end of sludge input, and
Since the temperature of the combustion zone is also controlled, there are no sudden fluctuations in furnace temperature. Therefore, the durability of the refractory materials, hardware, etc. of the furnace is improved, and the life of the furnace can be extended.

さらに、第3発明によれば、前記の効果に加え
て、循環排ガスは冷却排ガスであり、容積が減少
しているため循環フアンの動力を節減することが
できるという効果を奏する。
Furthermore, according to the third invention, in addition to the above-mentioned effects, the circulating exhaust gas is a cooling exhaust gas and has a reduced volume, so that the power of the circulation fan can be reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図、第2図は、本発明の実施例を示す概略
図である。 1……炉本体、2……乾燥帯、3……燃焼帯、
4……冷却帯、6……投入口、7……バーナ、8
……排気ダクト、9,19……循環ダクト、10
〜12,18……温度調節計、13……炉圧調節
計、16……排ガス循環フアン、17,20……
分岐ダクト。
FIGS. 1 and 2 are schematic diagrams showing embodiments of the present invention. 1... Furnace body, 2... Drying zone, 3... Combustion zone,
4... Cooling zone, 6... Inlet, 7... Burner, 8
...Exhaust duct, 9,19...Circulation duct, 10
~12,18...Temperature controller, 13...Furnace pressure regulator, 16...Exhaust gas circulation fan, 17,20...
branch duct.

Claims (1)

【特許請求の範囲】 1 汚泥を乾燥帯、燃焼帯、冷却帯へと順次落下
させつつ焼却する堅形多段式汚泥焼却炉におい
て、前記乾燥帯からの排ガスの一部を、乾燥帯上
部または燃焼帯のいずれか一方の温度に対応させ
て冷却帯に、また乾燥帯下方段の温度に対応させ
て乾燥帯下方段へ循環させるとともに、燃焼帯温
度を一定とするように、燃焼帯バーナへの助燃料
供給量を調節することを特徴とする堅形多段式汚
泥焼却炉の燃焼方法。 2 汚泥を乾燥帯、燃焼帯、冷却帯へと順次落下
させつつ焼却する堅形多段式汚泥焼却炉におい
て、前記乾燥帯下方段温度に対応して該下方段か
ら排ガスの一部を取出すとともに冷却し、冷却帯
と乾燥帯下方段温度に対応して乾燥帯へ循環する
一方、燃焼帯温度を一定とするように、燃焼帯バ
ーナへの助燃料供給量を調節することを特徴とす
る堅形多段式汚泥焼却炉の燃焼方法。
[Scope of Claims] 1. In a vertical multistage sludge incinerator that incinerates sludge while sequentially dropping it into a drying zone, a combustion zone, and a cooling zone, a portion of the exhaust gas from the drying zone is transferred to the upper part of the drying zone or to the combustion zone. Circulation is carried out to the cooling zone depending on the temperature of one of the zones, and to the lower drying zone depending on the temperature of the lower stage of the drying zone, and to the combustion zone burner to keep the temperature of the combustion zone constant. A combustion method for a vertical multi-stage sludge incinerator characterized by adjusting the amount of auxiliary fuel supplied. 2. In a vertical multistage sludge incinerator that incinerates sludge while sequentially dropping it into a drying zone, a combustion zone, and a cooling zone, a portion of the exhaust gas is extracted from the lower stage of the drying zone and cooled in accordance with the temperature of the lower stage of the drying zone. The fuel is circulated to the drying zone according to the temperature of the cooling zone and the lower stage of the drying zone, while the amount of auxiliary fuel supplied to the combustion zone burner is adjusted so as to keep the combustion zone temperature constant. Combustion method in multi-stage sludge incinerator.
JP8867082A 1982-05-24 1982-05-24 Combustion method of vertical multi-stage sludge incinerator Granted JPS58205014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8867082A JPS58205014A (en) 1982-05-24 1982-05-24 Combustion method of vertical multi-stage sludge incinerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8867082A JPS58205014A (en) 1982-05-24 1982-05-24 Combustion method of vertical multi-stage sludge incinerator

Publications (2)

Publication Number Publication Date
JPS58205014A JPS58205014A (en) 1983-11-29
JPS6125965B2 true JPS6125965B2 (en) 1986-06-18

Family

ID=13949247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8867082A Granted JPS58205014A (en) 1982-05-24 1982-05-24 Combustion method of vertical multi-stage sludge incinerator

Country Status (1)

Country Link
JP (1) JPS58205014A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07243629A (en) * 1994-02-28 1995-09-19 Hiroshi Iwasaki Method and apparatus for incinerating waste

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6354513A (en) * 1986-08-22 1988-03-08 Hitachi Ltd Multistage incinerator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07243629A (en) * 1994-02-28 1995-09-19 Hiroshi Iwasaki Method and apparatus for incinerating waste

Also Published As

Publication number Publication date
JPS58205014A (en) 1983-11-29

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