JPH0522808B2 - - Google Patents
Info
- Publication number
- JPH0522808B2 JPH0522808B2 JP58211428A JP21142883A JPH0522808B2 JP H0522808 B2 JPH0522808 B2 JP H0522808B2 JP 58211428 A JP58211428 A JP 58211428A JP 21142883 A JP21142883 A JP 21142883A JP H0522808 B2 JPH0522808 B2 JP H0522808B2
- Authority
- JP
- Japan
- Prior art keywords
- waste
- furnace
- melting
- organic matter
- present
- 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 - Lifetime
Links
- 239000002699 waste material Substances 0.000 claims description 20
- 230000008018 melting Effects 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 239000005416 organic matter Substances 0.000 claims description 10
- 239000010849 combustible waste Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000010801 sewage sludge Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000010802 sludge Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000010953 base metal Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 235000012970 cakes Nutrition 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000012768 molten material Substances 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 235000021463 dry cake Nutrition 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000013502 plastic waste Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- -1 Fe 2 O 3 Chemical class 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/085—High-temperature heating means, e.g. plasma, for partly melting the waste
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/32—Incineration of waste; Incinerator constructions; Details, accessories or control therefor the waste being subjected to a whirling movement, e.g. cyclonic incinerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J9/00—Preventing premature solidification of molten combustion residues
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Gasification And Melting Of Waste (AREA)
- Incineration Of Waste (AREA)
- Treatment Of Sludge (AREA)
Description
【発明の詳細な説明】
本発明は有機物を含有している廃棄物を処理す
る方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for treating waste containing organic matter.
湿潤状態の下水汚泥、皮革処理後の皮革汚泥等
の汚泥は異臭を発し本来不衛生なものであるの
で、従来埋立てにより処分されていたが、埋立て
用地の確保がしだいに困難になつてきている。そ
こで近年これら汚泥を乾燥して乾燥ケーキと成し
高温で溶融固化する方法が提案されている。電気
アーク炉によつて固化する方法はその１つであ
る。 Sludge such as wet sewage sludge and leather sludge after leather processing emit strange odors and are inherently unsanitary, so they were traditionally disposed of in landfills, but it has become increasingly difficult to secure land for landfills. ing. Therefore, in recent years, a method has been proposed in which the sludge is dried to form a dry cake and then melted and solidified at high temperatures. One of the methods is solidification using an electric arc furnace.
この方法は黒鉛電極を設けた製鋼用のアーク炉
をベースにした電気アーク炉に、1450〜1550℃程
度の高温溶融状態にしたベースメタル例えば鉄よ
りなる金属湯を入れ、前記乾燥ケーキをこれに添
加して含有される重金属類をベースメタル中に溶
融捕捉し、無機質成分は前記重金属類を一部含有
した溶融スラグとしてベースメタル上に浮遊分離
せしめ、炉外に取り出し冷却固化すると共に発生
ガスの内有効な可燃性ガス等を回収するものであ
る。この方法は炉の上部からのアーク熱の放散が
大で、黒鉛電極の消耗量が大きく、その補充作業
がやつかいであるばかりでなく、消費電力が大き
いという欠点があつた。また電極位置制御機構が
必要でそのため設備自体が大型になるという問題
もあつた。また上記のようなベースメタルを使用
せず、乾燥ケーキそのものが溶融状態となるまで
はアーク熱以外の加熱又は焼却装置により外部加
熱又は焼却し、一旦溶融後は該溶融物が電気の導
体としての性質を帯びることを利用し溶融炉本体
に電極を設け交流通電して内部加熱（ジユール加
熱）する処理方法も考えられている。しかしなが
らこの方法では乾燥した汚泥ケーキを初期溶融又
は焼却するための初期加熱装置又は焼却装置が必
要であるという欠点があつた。 In this method, a metal hot water made of a base metal such as iron that has been molten at a high temperature of about 1450 to 1550°C is placed in an electric arc furnace based on a steelmaking arc furnace equipped with graphite electrodes, and the dried cake is poured into the electric arc furnace. The heavy metals added and contained are captured by melting in the base metal, and the inorganic components are floated and separated on the base metal as molten slag containing some of the heavy metals, taken out of the furnace, cooled and solidified, and the generated gas is removed. This is to recover useful combustible gas, etc. This method had the drawbacks that a large amount of arc heat was dissipated from the upper part of the furnace, a large amount of graphite electrode was consumed, and the work of replenishing the electrode was tedious, as well as high power consumption. Another problem was that an electrode position control mechanism was required, which increased the size of the equipment itself. In addition, without using the above-mentioned base metal, the dry cake itself is externally heated or incinerated using a heating or incinerator other than arc heat until it becomes molten, and once melted, the molten material can be used as an electrical conductor. Taking advantage of this property, a processing method has also been considered in which an electrode is provided in the melting furnace body and AC current is applied to internally heat it (joule heating). However, this method has the disadvantage that an initial heating device or incinerator is required to initially melt or incinerate the dried sludge cake.
そこで本発明者らは、このような初期加熱又は
焼却装置が不要で、エネルギー効率のよい溶融処
理装置について鋭意検討を重ねた結果、わざわざ
加熱装置又は焼却装置を設けなくても特定構造の
廃棄物処理炉の上部で廃棄物中の有機物を燃焼さ
せ、更に残つた無機物が容易に溶融処理できるこ
とを見い出し本発明を完成した。 Therefore, the inventors of the present invention have conducted intensive studies on energy-efficient melting processing equipment that does not require such initial heating or incineration equipment. The present invention was completed by discovering that the organic matter in the waste can be burned in the upper part of the processing furnace, and the remaining inorganic matter can be easily melted and treated.
すなわち本発明の要旨は、廃棄物処理炉本体上
部で顆粒状の又は微粉砕した有機物含有自燃性廃
棄物を旋回させながら燃焼させ、残つた無機物を
該炉本体下部の溶融溜りに添加し、ジユール加熱
により溶融処理することを特徴とする廃棄物処理
方法にある。 That is, the gist of the present invention is to burn granular or finely pulverized organic matter-containing self-combustible waste while swirling it in the upper part of the waste treatment furnace body, add the remaining inorganic matter to the molten pool in the lower part of the furnace body, and The present invention provides a waste disposal method characterized by melting treatment by heating.
以下に本発明を更に詳細に説明するに、本発明
で処理される有機物含有自燃性廃棄物としては廃
棄物中に有機物を含有し、しかもそれ自身で自燃
に燃焼可能な廃棄物も指し、具体例としては下水
汚泥を乾燥後微粉砕又は顆粒状にした廃棄物、プ
ラスチツク廃棄物を微粉砕した廃棄物等を挙げる
ことができる。一般に800〜1100k cal／Kgの発熱
量があれば、自燃が可能であるといわれており、
下水汚泥、プラスチツク廃棄物に限らず、これ以
上の発熱量がある他の廃棄物でももちろん処理可
能である。下水汚泥は乾物（DS）当り、濃縮脱
水工程における凝集剤の種類によるが、1700〜
2500k cal／KgDSのエネルギーを有している。そ
こで自燃可能な含水率（例えば1700k cal／KgDS
で約０〜10％）になるよう乾燥させれば、本発明
方法で充分処理できる廃棄物となる。 To explain the present invention in more detail below, the organic matter-containing combustible waste to be treated in the present invention refers to waste that contains organic matter and is combustible by itself. Examples include waste obtained by drying sewage sludge and then pulverizing or granulating it, and waste obtained by pulverizing plastic waste. It is generally said that self-combustion is possible if the calorific value is 800 to 1100 kcal/Kg.
Not only sewage sludge and plastic waste, but also other wastes with a higher calorific value can be treated. Sewage sludge has a dry matter (DS) value of 1,700~
It has an energy of 2500k cal/KgDS. Therefore, the water content that can self-combust (e.g. 1700k cal/KgDS)
If the waste is dried to a concentration of about 0 to 10%), it becomes a waste that can be sufficiently treated by the method of the present invention.
このような有機物含有自燃性廃棄物を処理する
装置について、以下に例を挙げて説明する。第１
図は装置を示す一例で、溶融処理炉１は、例えば
ZrO2の含有量の多いSiO2−Al2O3−ZrO2系の耐
火材料で構築された容器からなつており、上部に
は廃棄物投入口２及びその投入口２に隣接して空
気供給口３が設けられ、更には助燃バーナー４が
容器１の頂部に設置けられている。また溶融処理
炉１の中程からは２つの排気口５が設けられ、更
に溶融処理炉１には炉本体に水平方向に出没自在
にした電極６，６が設けられている。この電極
６，６は電圧調整用電源トランス（図示せず）を
通して交流電流が流され、溶融物７が導体となつ
てこれにジユール熱を発生させて内部加熱により
溶融状態を保持させる機能を成すもので、その代
表例としてはモリブデン電極が、更に黒鉛、鉄、
酸化スズ、タングステン電極が挙げられる。モリ
ブデン及びタングステンは比重がそれぞれ10、19
と大きいのでコンパクトな電極となり黒鉛及び鉄
は安価、経済的な電極となる。又、酸化スズ電極
は石灰、塩鉄薬注の下水汚泥のようにFe2O3等の
金属酸化物を多量に含むものを処理する場合に、
電極が酸化物を還元して損耗することが少ないの
で経済的である。このため主として重金属を含む
汚泥を処理する場合酸化スズ電極は有利である。
８は溶融処理炉１底部に設けられている出滓口で
ある。 An example of an apparatus for treating such organic-containing combustible waste will be described below. 1st
The figure shows an example of an apparatus, and the melting furnace 1 is, for example,
It consists of a container constructed of SiO 2 -Al 2 O 3 -ZrO 2- based refractory material with a high content of ZrO 2 , with a waste input port 2 and an air supply adjacent to the waste input port 2 at the top. A mouth 3 is provided, and an auxiliary combustion burner 4 is further installed at the top of the container 1. Further, two exhaust ports 5 are provided from the middle of the melting processing furnace 1, and the melting processing furnace 1 is further provided with electrodes 6, 6 which are horizontally retractable from the furnace body. An alternating current is passed through the electrodes 6, 6 through a voltage regulating power transformer (not shown), and the molten material 7 becomes a conductor, generating Joule heat and maintaining the molten state by internal heating. Typical examples include molybdenum electrodes, graphite, iron,
Examples include tin oxide and tungsten electrodes. Molybdenum and tungsten have specific gravity of 10 and 19, respectively.
Because it is large, it becomes a compact electrode, and graphite and iron are inexpensive and economical electrodes. In addition, tin oxide electrodes are used when treating materials containing large amounts of metal oxides such as Fe 2 O 3 , such as sewage sludge from lime and iron salts.
It is economical because the electrode reduces the oxide and is less likely to be worn out. Therefore, tin oxide electrodes are advantageous when treating sludge containing mainly heavy metals.
8 is a slag outlet provided at the bottom of the melting furnace 1.
このような装置を用いて本発明方法を実施する
には、まず有機物含有自燃性廃棄物を直径１〜３
mmに造粒したあと投入口２から投入する。その際
に空気供給口３から空気又は空気に酸素を付加さ
せて、40〜60m／ｓの速度で内部に噴出させ、ま
た助燃バーナー４より処理炉１内を予め600〜800
℃に加熱しておく、すると廃棄物９は速度40〜
60m／ｓの空気の流れに乗り、処理炉内に入り炉
内上部で旋回する。旋回しながら廃棄物９は燃焼
し、燃焼後の灰が溶融物７上に落下する。この際
酸素成分が充分炉内に存在しない場合には、廃棄
物７は不完全燃焼する。この時可燃性ガスが発生
するが、その可燃性ガスは排気口５から排出され
他に有効利用される。溶融物７が存在する溶融溜
りに落下した焼結状態の灰は、ここで溶融処理さ
れる。この溶融溜りには溶融物７内に電極を挿入
し、交流電流を印加し、ジユール熱により1300〜
1500℃程度に、加熱溶融されている。溶融処理さ
れた廃棄物は出滓口８より炉外へ出滓し空冷され
る。その後破砕され骨材として有効利用される。
また水砕し細粒化された水砕スラグとして有効利
用することもできる。 In order to carry out the method of the present invention using such an apparatus, first, organic matter-containing self-combustible waste is separated into 1 to 3 diameter pieces.
After granulating to a size of mm, the granules are charged from the input port 2. At this time, air or oxygen is added to the air from the air supply port 3 and is ejected into the interior at a speed of 40 to 60 m/s.
Heat it to ℃, then waste 9 has a speed of 40~
Riding on the air flow of 60 m/s, it enters the processing furnace and rotates at the upper part of the furnace. The waste 9 burns while swirling, and the ash after combustion falls onto the melt 7. At this time, if sufficient oxygen components are not present in the furnace, the waste 7 will be incompletely combusted. At this time, flammable gas is generated, which is exhausted from the exhaust port 5 and effectively used for other purposes. The sintered ash that has fallen into the melt pool where the melt 7 is present is melted here. In this molten pool, an electrode is inserted into the molten material 7, an alternating current is applied, and 1300 ~
It is heated and melted at around 1500℃. The melted waste is discharged from the furnace through the slag outlet 8 and cooled by air. It is then crushed and effectively used as aggregate.
It can also be effectively used as granulated slag.
以上詳述したように本発明方法は、廃棄物処理
炉本体上部で有機物含有自燃性廃棄物を燃焼さ
せ、燃焼後この残留物を溶融溜りに添加して溶融
処理することを特徴とする廃棄物処理方法にあ
る。このため本発明によれば有機物含有自燃性廃
棄物を燃焼と同時に溶融処理することができる。
そのため処理に必要なエネルギーを有効に活用す
ることができると共に処理に際し、処理中間物を
あちらこちらに移動する必要もなく一貫して処理
することができる。 As detailed above, the method of the present invention is characterized in that organic matter-containing self-combustible waste is burned in the upper part of the waste treatment furnace main body, and after combustion, this residue is added to a melting pool for melting treatment. It's in the processing method. Therefore, according to the present invention, organic matter-containing self-combustible waste can be melted and simultaneously burned.
Therefore, the energy required for processing can be used effectively, and processing can be performed consistently without the need to move processing intermediates here and there.
［実施例］
下水汚泥の乾燥ケーキ（含有水率20％）を直径
１〜３mmに造粒し、第１図の溶融処理炉１内へ投
入口２より装入した。処理炉１内は助燃バーナー
４により800℃に加熱しておいた。この時空気供
給口３より空気も吹き込み、上記粒は空気の流れ
に乗せて旋回させ燃焼させた。燃焼後の灰は溶融
物７上に落下させ、そこで、95kwh／ｔ−被処理
物の交流電流により溶融処理した。[Example] A dried cake of sewage sludge (water content: 20%) was granulated to a diameter of 1 to 3 mm, and charged into the melting furnace 1 shown in FIG. 1 through the inlet 2. The inside of the processing furnace 1 was heated to 800° C. by an auxiliary combustion burner 4. At this time, air was also blown from the air supply port 3, and the particles were swirled and burned in the air flow. The ash after combustion was dropped onto the melt 7, where it was melted using an alternating current of 95 kwh/t of the material to be treated.
なお同様の被処理物を焼結炉で焼結したあと、
同様に溶融したところ830kwh／ｔ−被処理物の
交流電流を要した。 Furthermore, after sintering a similar workpiece in a sintering furnace,
When the material was melted in the same manner, an alternating current of 830 kwh/t of the material to be treated was required.
第１図は本発明方法を実施するための溶融処理
炉の一例を示す概略断面図である。
１……溶融処理炉、４……助燃バーナー、２…
…投入口、７……溶融溜り。
FIG. 1 is a schematic sectional view showing an example of a melting furnace for carrying out the method of the present invention. 1... Melting processing furnace, 4... Assist burner, 2...
...Input port, 7...Melting pool.
Claims (1)
した有機物含有自燃性廃棄物を旋回させながら燃
焼させ、残つた無機物を該炉本体下部の溶融溜り
に添加し、ジユール加熱により溶融処理すること
を特徴とする廃棄物処理方法。 ２ 有機物含有自燃性廃棄物が、乾燥した下水汚
泥である特許請求の範囲第１項記載の廃棄物処理
方法。[Claims] 1. Granular or finely pulverized organic matter-containing self-combustible waste is burned while swirling in the upper part of the waste treatment furnace body, and the remaining inorganic matter is added to the molten pool in the lower part of the furnace body. A waste treatment method characterized by melting treatment by heating. 2. The waste treatment method according to claim 1, wherein the organic matter-containing combustible waste is dried sewage sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21142883A JPS60103215A (en) | 1983-11-10 | 1983-11-10 | Disposal of waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21142883A JPS60103215A (en) | 1983-11-10 | 1983-11-10 | Disposal of waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60103215A JPS60103215A (en) | 1985-06-07 |
| JPH0522808B2 true JPH0522808B2 (en) | 1993-03-30 |
Family
ID=16605783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21142883A Granted JPS60103215A (en) | 1983-11-10 | 1983-11-10 | Disposal of waste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60103215A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0650172B2 (en) * | 1985-03-19 | 1994-06-29 | 月島機械株式会社 | Combustion method for solid substances containing incombustibles in swirl flow melting equipment |
| EP0687861A1 (en) * | 1994-06-15 | 1995-12-20 | Sulzer Chemtech AG | Method and plant for treating residues |
| US6520098B1 (en) * | 2000-09-29 | 2003-02-18 | Tokyo Electric Power Company | Apparatus and method for disposing of dam dirt |
| JP4831651B2 (en) * | 2004-04-13 | 2011-12-07 | 株式会社アクトリー | Method for melting organic sludge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441573A (en) * | 1977-09-08 | 1979-04-02 | Mitsubishi Heavy Ind Ltd | Waste matter treatment device |
| JPS54108474A (en) * | 1978-02-13 | 1979-08-25 | Ryowa Kakoki Kk | Incinerator in incinerating device of industrial wastes*etc* |
| JPS572916A (en) * | 1980-06-06 | 1982-01-08 | Daido Steel Co Ltd | Melting disposal furnace for incineration residue |
-
1983
- 1983-11-10 JP JP21142883A patent/JPS60103215A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441573A (en) * | 1977-09-08 | 1979-04-02 | Mitsubishi Heavy Ind Ltd | Waste matter treatment device |
| JPS54108474A (en) * | 1978-02-13 | 1979-08-25 | Ryowa Kakoki Kk | Incinerator in incinerating device of industrial wastes*etc* |
| JPS572916A (en) * | 1980-06-06 | 1982-01-08 | Daido Steel Co Ltd | Melting disposal furnace for incineration residue |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60103215A (en) | 1985-06-07 |
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