JPH0297813A - Waste melting disposing device - Google Patents
Waste melting disposing deviceInfo
- Publication number
- JPH0297813A JPH0297813A JP24873588A JP24873588A JPH0297813A JP H0297813 A JPH0297813 A JP H0297813A JP 24873588 A JP24873588 A JP 24873588A JP 24873588 A JP24873588 A JP 24873588A JP H0297813 A JPH0297813 A JP H0297813A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- waste
- arc
- cathode
- anode
- 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.)
- Pending
Links
- 239000002699 waste material Substances 0.000 title claims abstract description 31
- 238000002844 melting Methods 0.000 title claims abstract description 15
- 230000008018 melting Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 abstract description 14
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000010953 base metal Substances 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 12
- 239000002893 slag Substances 0.000 description 11
- 238000010309 melting process Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000010128 melt processing Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は廃棄物溶融処理装置に関する。[Detailed description of the invention] <Industrial application field> The present invention relates to a waste melting treatment device.
都市ごみ焼却炉から発生する焼却残液や下水汚泥の乾燥
物更にはその焼却灰等、各種の廃棄物の処理に溶融処理
が行なわれている。該溶融処理には、バーナ方式、キュ
ーポラ方式、旋回流方式。BACKGROUND OF THE INVENTION Melting treatment is used to treat various wastes, such as incineration residue generated from municipal waste incinerators, dried sewage sludge, and incineration ash. The melting process includes a burner method, a cupola method, and a swirling flow method.
誘導加熱方式、直接通電方式、アーク方式等、各種の方
式があるが、なかでも、高温の溶融処理が安定且つ容易
であるという利点を有し、したがって廃棄物の高温にお
ける全体的な均一溶融処理を行なうことができるという
利点を有するところから、アーク方式が活用されている
。There are various methods such as induction heating method, direct energization method, arc method, etc., but among them, it has the advantage that high temperature melting treatment is stable and easy, and therefore it is possible to uniformly melt the waste at high temperature overall. The arc method is used because it has the advantage of being able to perform the following steps.
本発明は、）１．記アーク方式による廃棄物溶融処理装
置の改良に関するものである。The present invention comprises:)1. The present invention relates to an improvement of a waste melting processing apparatus using an arc method.
〈従来の技術、その課題〉
従来、アーク方式による廃棄物溶融処理装置として、三
相又は単相の交流アーク炉を中核として構成される装置
が使用されている（例えば、実公昭６１−４３０６８号
公報記載の装置）、該従来装置は、アーク炉の炉本体内
へ装入された電極間へ交流電圧を印加することにより発
生するアーク熱を利用するもので、炉本体内へ投入され
た廃棄物中の有機分を該アーク熱により熱分解して水素
や一酸化炭素等からなる可燃性の生成ガスとし、該生成
ガスをアーク炉のガス排出口からガス処理系統へと排出
して、該ガス処理系統で洗浄や後燃焼更には除塵等の処
理を行ない、その一方で、上記廃棄物中の無機分を同様
に熱分解して酸化ケイ素や酸化カルシウム更には金属酸
化物等からなる溶融スラグとなし、該溶融スラグをアー
ク炉のスラグ排出口からスラグ排出系統へと排出して、
該スラグ排出系統で水冷や徐冷破砕等の処理を行なうも
のである。<Prior art and its problems> Conventionally, as an arc-based waste melting treatment device, a device configured with a three-phase or single-phase AC arc furnace as the core has been used (for example, Utility Model Publication No. 61-43068). This conventional device utilizes the arc heat generated by applying an alternating current voltage between the electrodes inserted into the furnace body of an arc furnace. Organic components in the material are thermally decomposed by the arc heat to produce flammable gas consisting of hydrogen, carbon monoxide, etc., and the produced gas is discharged from the gas outlet of the arc furnace to the gas processing system. The gas treatment system performs cleaning, post-combustion, and dust removal, while the inorganic components in the waste are similarly thermally decomposed to produce molten slag consisting of silicon oxide, calcium oxide, and metal oxides. and discharging the molten slag from the slag discharge port of the arc furnace to the slag discharge system,
The slag discharge system performs processes such as water cooling and slow cooling crushing.
ところが、交流７−り炉を中核として構成される上記従
来装置には、次のような課題がある。However, the above-mentioned conventional apparatus configured with an AC 7-hole furnace as its core has the following problems.
１）電力原単位が大きい、また電極の消耗が速いため電
極原単位も大きい、したがって、電力原単位及び電極原
単位の両面でランニングコストが高い。1) The electric power consumption rate is high, and since the electrodes are consumed quickly, the electrode consumption rate is also large.Therefore, the running cost is high in terms of both electric power consumption and electrode consumption rates.
２）電極の消耗が速くて、寿命が短いため、その接続頻
度が多い、またアークの方向が不安定で、該アークが炉
壁を激しく損耗させるため、炉壁の寿命も短い、したが
って、装置の保守管理が誠に煩雑である。2) The electrode wears out quickly and has a short lifespan, so it has to be connected frequently, and the direction of the arc is unstable, causing severe damage to the furnace wall, resulting in a short lifespan of the furnace wall. Maintenance management is really complicated.
３）その他、電波障害を引き起こすフリッカが発生する
。3) In addition, flicker that causes radio wave interference occurs.
〈発明が解決しようとする課題、七の解決手段〉本発明
は、廃棄物の溶融処理における前述したようなアーク方
式の利点を活用しつつ、叙上の如き従来ＩＩｔ置の課題
を解決する、改良された廃棄物溶融処理装置な提供する
ものである。<Problems to be Solved by the Invention, Seven Solution Means> The present invention solves the problems of the conventional IIt system as described above while utilizing the advantages of the above-mentioned arc method in the melting treatment of waste. An improved waste melt processing apparatus is provided.
しかして本発明は。However, the present invention...
入力側が交流電源へと接続される変圧器の出力側に整流
器が接続されており、該整流器の出力側にはそれぞれ一
つ又は二つ以上の陽極と陰極とが接続されていて、該陽
極及び該陰極はアーク炉の炉本体内へ装入され、該陽極
と該陰極との間へ直流電圧を印加することにより発生す
るアーク熱を利用して、炉本体内へ投入された廃棄物を
溶融処理するように構成してなることを特徴とする廃棄
物溶融処理装置に係る。A rectifier is connected to the output side of the transformer whose input side is connected to an AC power source, and one or more anodes and a cathode are connected to the output side of the rectifier, respectively. The cathode is inserted into the furnace body of an arc furnace, and the arc heat generated by applying a DC voltage between the anode and the cathode is used to melt the waste thrown into the furnace body. The present invention relates to a waste melting processing device characterized in that it is configured to perform waste processing.
本発明において肝要な点は、廃棄物溶融処理装置が直流
アーク炉を中核として構成されている処にある。そして
本発明に係る廃棄物溶融処理装置は、交流電源→変圧器
峠整流器→陽極・陰極の順で該陽極と該陰極との間へ直
流電圧を印加して発生するアー゛り熱を利用し、アーク
炉の炉本体内へ投入された廃棄物を該アーク熱で溶融処
理することによって、７一タ方式による前述したような
利点、すなわち廃棄物を高温で全体的に均τ溶融処理す
るという利点を活用しつつ、同時に、交流アーク炉を中
核として構成される従来装置に比べて、電力原単位を低
減し、電極の消耗や炉壁の損耗更にはフリッカの発生を
抑制するものである。The important point in the present invention is that the waste melting treatment apparatus is constructed with a DC arc furnace at its core. The waste melting treatment apparatus according to the present invention utilizes the arc heat generated by applying a DC voltage between the anode and the cathode in the order of AC power supply → transformer rectifier → anode and cathode. By melting the waste input into the furnace body of an arc furnace using the arc heat, the advantages of the 7-tameter method described above can be achieved, namely, the waste is uniformly melted as a whole at high temperature. While utilizing these advantages, at the same time, compared to conventional equipment configured with an AC arc furnace at its core, the unit of power consumption is reduced, electrode consumption, furnace wall wear, and flicker are suppressed.
以下、図面に基いて本発明の構成を更に詳細に説明する
。Hereinafter, the configuration of the present invention will be explained in more detail based on the drawings.
〈実施例〉
１１図は本発明の一実施例を示す部分断面図である。入
力側が交流電源１．１へと接続される変圧器２１の出力
側に整流器３１が接続されており。<Embodiment> FIG. 11 is a partial sectional view showing an embodiment of the present invention. A rectifier 31 is connected to the output side of the transformer 21 whose input side is connected to the AC power supply 1.1.
該整流器３１の出力側には陽極４１と陰極４２とが接続
されている。一方、炉殻５１と該炉殻５１に内張された
通常は耐火物からなる炉壁５２とでアーク炉の炉本体５
３が形成されており、該炉本体５３の側面下部にはスラ
グ排出口５４が開設されている。また炉本体５３の上部
には炉蓋８１が密着されており、該炉蓋６１には廃棄物
投入口６２とガス排出口６３とが開設されている。そし
て、前記陽極４１は炉本体５３内の底部に装入配置され
ており、前記陰極４２は炉蓋６１を貫通して炉本体５３
内に装入されている。An anode 41 and a cathode 42 are connected to the output side of the rectifier 31. On the other hand, the furnace body 5 of the arc furnace is composed of a furnace shell 51 and a furnace wall 52 lined with the furnace shell 51 and usually made of a refractory material.
3 is formed, and a slag discharge port 54 is opened at the lower side of the furnace body 53. Further, a furnace lid 81 is tightly attached to the upper part of the furnace body 53, and a waste input port 62 and a gas discharge port 63 are provided in the furnace lid 61. The anode 41 is placed at the bottom of the furnace body 53, and the cathode 42 passes through the furnace lid 61 and is inserted into the furnace body 53.
It is loaded inside.
第１図に示した一実施例は、炉底電極型のアーク炉を使
用しており、交流電源１１→変圧器２１→整流器３１→
陽極４１・陰極４２の順で陽極４１と陰極４２との間へ
直流電圧を印加することによりベースメタル７連を介し
発生するアーク熱を利用して、廃棄物投入口６２から炉
本体５３内へ投入された廃棄物を溶融処理する構成とな
っている０図示を省略、するが、、ガス排出口６３はガ
ス処理系統へと連結されており、上記溶融処理の際に廃
棄物中の有機分から発生する生成ガスを、該ガス処理系
統において、洗浄や後燃焼更には除塵等で処理し、また
スラグ排出口５４はスラグ処理系統へと連結されており
％１記溶融処理の際に廃棄物中の無機分から発生する溶
融スラグを、該スラグ処理系統において、水冷や徐冷破
砕等で処理するのである。One embodiment shown in FIG. 1 uses a bottom electrode type arc furnace, in which AC power supply 11 → transformer 21 → rectifier 31 →
By applying a DC voltage between the anode 41 and the cathode 42 in the order of the anode 41 and the cathode 42, the arc heat generated through the base metal 7 series is used to transfer the waste from the waste inlet 62 into the furnace main body 53. Although not shown, the gas outlet 63 is connected to a gas treatment system, and the organic matter in the waste is removed during the melting process. The generated gas is processed in the gas processing system by cleaning, after-combustion, and dust removal, and the slag discharge port 54 is connected to the slag processing system, so that the generated gas is removed from the waste during the melting process. The molten slag generated from the inorganic components is processed in the slag treatment system by water cooling, slow cooling crushing, etc.
第２図は本発明の他の一実施例を示す部分断面図である
。入力側が交流電源１２へと接続される変圧器２２の出
力側に整流器３２が接続されており、該整流器３２の出
力側には陽極４３と陰極４４とが接続されている。一方
、炉＊５５と該炉殻５５に内張された通常は耐火物から
なる炉壁５６とでアーク炉の炉本体５７が形成されてお
り、該炉本体５７の側面下部にはスラグ排出口５８が開
設されている。また炉本体５７の上部には炉蓋６４が密
着されており、該炉蓋６４には廃棄物投入口６５とガス
排出口６６とが開設されている。そして、前記陽極４３
と前記陰極４４は炉蓋６４を貫通して炉本体５７内に装
入されている。FIG. 2 is a partial sectional view showing another embodiment of the present invention. A rectifier 32 is connected to the output side of the transformer 22 whose input side is connected to the AC power supply 12, and an anode 43 and a cathode 44 are connected to the output side of the rectifier 32. On the other hand, a furnace body 57 of the arc furnace is formed by a furnace *55 and a furnace wall 56, which is usually made of refractory and lined with the furnace shell 55, and a slag discharge port is provided at the lower side of the furnace body 57. 58 have been established. Further, a furnace lid 64 is closely attached to the upper part of the furnace body 57, and a waste inlet 65 and a gas outlet 66 are provided in the furnace lid 64. And the anode 43
The cathode 44 passes through the furnace lid 64 and is inserted into the furnace body 57.
ａ８２図に示した一実施例は上部電極型のアーク炉を使
用しているが、この点を除きベースメタル７２等その他
は第１図に示した一実施例の場合とほぼ同様の構成とな
っている。The embodiment shown in Fig. a82 uses an upper electrode type arc furnace, but except for this point, the base metal 72 and other components are almost the same as the embodiment shown in Fig. 1. ing.
以上、本発明の構成を図示した実施例に基いて説明した
が、本発明が該実施例に限定されるものでないことはい
うまでもない０例えば、電極の形状や構造、またその本
数は、陽極と陰極との間へ直流電圧を印加してアーク熱
を発生し得るものであれば任意に選定することができる
。より具体的には、炉底電極型のアーク炉の場合、複数
の電極が耐火物間へ埋設されたような構造の陽極を炉底
へ配置することができ、また上部電極型のアーク炉の場
合、中央に１本の陰極を配置し、その両側に合計２木の
陽極を配置することができるのである。Although the configuration of the present invention has been described above based on the illustrated embodiments, it goes without saying that the present invention is not limited to the embodiments. For example, the shape and structure of the electrodes, the number of electrodes, etc. Any material can be selected as long as it can generate arc heat by applying a DC voltage between the anode and the cathode. More specifically, in the case of a bottom electrode type arc furnace, an anode with a structure in which multiple electrodes are buried between refractories can be placed at the bottom of the furnace, and in the case of a top electrode type arc furnace, In this case, one cathode can be placed in the center, and a total of two anodes can be placed on both sides.
直流アーク炉を中核として構成される本発明によると、
例えば炉底電極型のアーク炉な使用して都市ごみ焼却残
液を溶融処理する場合、交流アーク炉を中核として構成
される従来装置に比べて。According to the present invention, which is configured with a DC arc furnace as the core,
For example, when using a bottom-electrode type arc furnace to melt and process municipal waste incineration residue, compared to conventional equipment that uses an AC arc furnace as its core.
電力原単位を約５％低減し、また電極原単位を約５０％
低減しく人造黒鉛電極の場合）、更に安定したアークに
よって炉壁の寿命を約３０％延長し、そしてフリッカの
発生を約５０％低減することができる。Reduced power consumption by approximately 5% and electrode consumption by approximately 50%
(in the case of artificial graphite electrodes), a more stable arc can extend the life of the furnace wall by about 30% and reduce the occurrence of flicker by about 50%.
〈発明の効果〉
既に明らかなように、以上説明した本発明には、廃棄物
を高温で全体的に均一溶融処理しつつ、同時に電力原単
位を低減し、また電極の消耗や炉壁の損耗更には２リフ
カの発生を抑制して、結局はランニングコストを低減し
、また保守管理を容易にすることができるという効果が
ある。<Effects of the Invention> As is already clear, the present invention described above has the following advantages: While uniformly melting waste as a whole at high temperatures, at the same time, the power consumption rate can be reduced, and the consumption of electrodes and furnace walls can be reduced. Furthermore, it is possible to suppress the occurrence of double rifts, ultimately reducing running costs and facilitating maintenance management.
第１図は本発明の一実施例を示す部分断面図、第２図は
本発明の他の一実施例を示す部分断面図である。
１１．１２・・・・交流電源、２１．２２・・・・変圧
器３１．３２・・・・整流器、４１．４３・・・・陽極
４２．４４・・・・陰極、 ５３．５７・・・−炉本体
８１．８４・・・・炉蓋
第１図
第２図
特許出願人 大同特殊鋼株式会社
代理人 弁理士 入 山 宏 正FIG. 1 is a partial sectional view showing one embodiment of the present invention, and FIG. 2 is a partial sectional view showing another embodiment of the invention. 11.12... AC power supply, 21.22... Transformer 31.32... Rectifier, 41.43... Anode 42.44... Cathode, 53.57... - Furnace body 81.84... Furnace lid Figure 1 Figure 2 Patent applicant Daido Steel Co., Ltd. Agent Patent attorney Hiroshi Iriyama
Claims (1)
整流器が接続されており、該整流器の出力側にはそれぞ
れ一つ又は二つ以上の陽極と陰極とが接続されていて、
該陽極及び該陰極はアーク炉の炉本体内へ装入され、該
陽極と該陰極との間へ直流電圧を印加することにより発
生するアーク熱で炉本体内の廃棄物を溶融処理するよう
に構成してなることを特徴とする廃棄物溶融処理装置。1. A rectifier is connected to the output side of the transformer whose input side is connected to an AC power source, and one or more anodes and cathodes are connected to the output side of the rectifier, respectively,
The anode and the cathode are inserted into the furnace body of an arc furnace, and the waste in the furnace body is melted by the arc heat generated by applying a DC voltage between the anode and the cathode. A waste melting processing device characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24873588A JPH0297813A (en) | 1988-09-30 | 1988-09-30 | Waste melting disposing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24873588A JPH0297813A (en) | 1988-09-30 | 1988-09-30 | Waste melting disposing device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31005297A Division JPH10122524A (en) | 1997-10-24 | 1997-10-24 | Waste melting processing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0297813A true JPH0297813A (en) | 1990-04-10 |
Family
ID=17182580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24873588A Pending JPH0297813A (en) | 1988-09-30 | 1988-09-30 | Waste melting disposing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0297813A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000039118A (en) * | 1998-07-17 | 2000-02-08 | Rasa Shoji Kk | Side charge type dc electric melting furnace for reduction molten slag |
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|---|---|---|---|---|
| JPS5339668A (en) * | 1976-09-22 | 1978-04-11 | Hitachi Plant Eng & Constr Co Ltd | Apparatus for treating sludge |
| JPS5624186A (en) * | 1979-08-03 | 1981-03-07 | Hermes Precisa International | Typewriter |
| JPS5856579A (en) * | 1981-09-30 | 1983-04-04 | Nec Home Electronics Ltd | Video clamp circuit |
| JPS6036876A (en) * | 1983-04-21 | 1985-02-26 | アセア アクチーボラグ | Direct current arc furnace |
-
1988
- 1988-09-30 JP JP24873588A patent/JPH0297813A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5339668A (en) * | 1976-09-22 | 1978-04-11 | Hitachi Plant Eng & Constr Co Ltd | Apparatus for treating sludge |
| JPS5624186A (en) * | 1979-08-03 | 1981-03-07 | Hermes Precisa International | Typewriter |
| JPS5856579A (en) * | 1981-09-30 | 1983-04-04 | Nec Home Electronics Ltd | Video clamp circuit |
| JPS6036876A (en) * | 1983-04-21 | 1985-02-26 | アセア アクチーボラグ | Direct current arc furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000039118A (en) * | 1998-07-17 | 2000-02-08 | Rasa Shoji Kk | Side charge type dc electric melting furnace for reduction molten slag |
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