JPS6242680B2 - - Google Patents
Info
- Publication number
- JPS6242680B2 JPS6242680B2 JP53104335A JP10433578A JPS6242680B2 JP S6242680 B2 JPS6242680 B2 JP S6242680B2 JP 53104335 A JP53104335 A JP 53104335A JP 10433578 A JP10433578 A JP 10433578A JP S6242680 B2 JPS6242680 B2 JP S6242680B2
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- treatment tank
- treatment
- tank
- slag
- 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
Links
- 239000010802 sludge Substances 0.000 claims description 40
- 239000002893 slag Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims 2
- 239000007789 gas Substances 0.000 description 17
- 239000000126 substance Substances 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000197 pyrolysis Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- -1 but for example Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000002737 fuel gas Substances 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
- 239000002440 industrial waste Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Description
【発明の詳細な説明】 本発明は汚泥の熱分解処理装置に関する。[Detailed description of the invention] The present invention relates to a sludge thermal decomposition treatment apparatus.
汚泥を熱分解して、燃料として利用できる分解
ガスと無機質のスラグとを得る技術は公知であ
る。 Techniques for thermally decomposing sludge to obtain cracked gas and inorganic slag that can be used as fuel are known.
しかしながら、従来公知の処理装置は、熱分解
ガスを得ることよりむしろ汚泥を焼却処理すると
いう観点から設計されており、そのためその観点
からすれば能率のよいアーク炉が採用されてい
た。 However, conventionally known treatment equipment has been designed from the perspective of incinerating sludge rather than obtaining pyrolysis gas, and therefore has employed arc furnaces, which are more efficient from that perspective.
従来公知のアーク炉式処理装置においても、汚
泥の熱分解ガスが生成するが、これは単なる副産
物たるに止まり、例えば汚泥の処理に必要な電力
をまかなえる程良質かつ大量のガスは得られなか
つた。 Conventionally known arc furnace treatment equipment also generates pyrolysis gas from sludge, but this remains as a mere by-product, and it is not possible to obtain gas of high quality and in large quantities to cover the electricity required for sludge treatment, for example. .
従来のアーク炉では局部的に過熱される部分が
ある反面、充分加熱、分解されることなくスラグ
と共に排棄される有機成分も多く、このため、熱
分解ガスの質及び収量の点で問題があつたが、と
にかく効率的に汚泥を処理できるので、この方式
は次第に普及してきている。 In conventional arc furnaces, although some parts are locally overheated, many organic components are discarded along with the slag without being sufficiently heated or decomposed, which causes problems in terms of the quality and yield of pyrolysis gas. However, since sludge can be treated efficiently, this method is becoming increasingly popular.
然しながら、本発明者は、アーク炉でなく、誘
導加熱炉によるときは、より効果的に汚泥を分
解、ガス化し得ること、残滓が完全な無機質スラ
グとなることを発見し本発明を完成した。 However, the present inventors have discovered that sludge can be more effectively decomposed and gasified when an induction heating furnace is used instead of an arc furnace, and that the residue becomes completely inorganic slag, thereby completing the present invention.
本発明装置によるときは、汚泥は熱分解のため
最適な温度に均一に加熱され、かつ誘導加熱に伴
う撹拌効果、分解促進効果により、効率的に熱分
解され、多量の高カロリーガスを産出するもので
ある。 When using the apparatus of the present invention, sludge is uniformly heated to the optimum temperature for thermal decomposition, and is efficiently thermally decomposed due to the stirring effect and decomposition promotion effect associated with induction heating, producing a large amount of high-calorie gas. It is something.
本発明装置から発生するガスは良質かつ大量で
あり、汚泥の性質にもよるが、通常はこれを発電
用燃料として使用することにより、処理に必要な
電力を賄い得る程である。 The gas generated from the apparatus of the present invention is of good quality and in large quantities, and although it depends on the nature of the sludge, it is usually enough to cover the electricity required for treatment by using it as fuel for power generation.
また、通常の有機汚泥は10〜15％の無機物を含
んでいるが、本発明装置によれば、これら無機質
は各種骨材等に利用可能なガラス状のスラグとし
て回収されるので、完全に無公害化できるもので
ある。 In addition, ordinary organic sludge contains 10 to 15% inorganic substances, but with the device of the present invention, these inorganic substances are recovered as glass-like slag that can be used as various aggregates, so they are completely free of inorganic substances. It can become a pollution.
以下図面により本発明の詳細を説明する。 The details of the present invention will be explained below with reference to the drawings.
図面は本発明にかゝる汚泥処理装置の一実施例
を示す模型図であり、図中、１は汚泥貯溜池、２
は処理すべき汚泥、３はスクリユーウコンベア、
４はサービスタンク、５はグラフアイト製の処理
槽、６は断熱材、７は冷却水コイル、８は誘導加
熱用コイル、９はその電源、１０は圧力調整弁、
１１は熱交換器、１２は溶融スラグ、１３はスラ
グ溜である。 The drawing is a model diagram showing an embodiment of the sludge treatment apparatus according to the present invention, and in the drawing, 1 is a sludge reservoir, 2 is
is the sludge to be treated, 3 is the screw conveyor,
4 is a service tank, 5 is a processing tank made of graphite, 6 is a heat insulator, 7 is a cooling water coil, 8 is an induction heating coil, 9 is its power source, 10 is a pressure regulating valve,
11 is a heat exchanger, 12 is a molten slag, and 13 is a slag sump.
サービスクンク４はオーバーフロー管４ａと排
出管４ｂとを有し、処理槽５は汚泥装填管５ａ、
ガス排出管５ｂ及び図示しない開閉可能な弁、或
いは、圧力作用弁を備えた溶融スラグ排出管５ｃ
を有する。 The service tank 4 has an overflow pipe 4a and a discharge pipe 4b, and the treatment tank 5 has a sludge loading pipe 5a,
Molten slag discharge pipe 5c equipped with a gas discharge pipe 5b and a valve that can be opened and closed (not shown) or a pressure application valve
has.
サービスタンク４の排出管４ｂは熱交換器１
１、その他必要に応じて逆止弁等を介して、処理
槽５の汚泥装填管５ａに接続しており、汚泥貯溜
池１内の汚泥２は、スクリユーコンベア３によ
り、サービスタンク４に移され、排出管４ｂ、装
填管５ａを経て処理槽５内に装填される。 The discharge pipe 4b of the service tank 4 is connected to the heat exchanger 1
1. If necessary, it is connected to the sludge loading pipe 5a of the treatment tank 5 via a check valve, etc., and the sludge 2 in the sludge storage tank 1 is transferred to the service tank 4 by the screw conveyor 3. and loaded into the processing tank 5 via the discharge pipe 4b and the loading pipe 5a.
処理槽５は耐火導電性材料、本実施例において
は、必要に応じて耐摩及び耐蝕処理されたグラフ
アイト、で製造されており、その内部の汚泥と共
に、コイル８を通る高周波電流により誘導加熱さ
れる炉を形成する。 The treatment tank 5 is made of a fire-resistant conductive material, in this example, graphite, which has been treated with anti-wear and anti-corrosion treatment as required.The treatment tank 5, together with the sludge inside, is heated by induction by a high-frequency current passing through a coil 8. form a furnace.
汚泥の性質にもよるが、加熱温度を一般的には
800〜2000℃、特に1100〜1500℃の範囲とすると
収量（発熱量換算）がよい。 Although it depends on the properties of the sludge, the heating temperature is generally
A temperature range of 800 to 2000°C, especially 1100 to 1500°C provides good yield (in terms of calorific value).
汚泥は通常、相当の導電性を有するから、高温
の処理槽内壁に触れて加熱されるほか、それ自身
直接に高周波誘電加熱されるものであり、かつ、
その際電磁誘導に伴う強い撹拌、振とう作用、分
解促進作用を受け、効率的に熱分解される。 Since sludge usually has considerable electrical conductivity, it is not only heated by contact with the high-temperature inner wall of the treatment tank, but also directly heated by high-frequency dielectric heating, and
At this time, it is efficiently thermally decomposed by the strong stirring, shaking, and decomposition promoting effects associated with electromagnetic induction.
処理槽５内部で発生した分解ガスは、汚泥中の
有機物、水分等の分離生成ガス及び水蒸気等から
成り、水素、一酸化炭素、メタン等の可燃性ガス
を多量に含むものである。 The decomposition gas generated inside the treatment tank 5 is composed of organic matter in the sludge, separated gas such as moisture, water vapor, etc., and contains a large amount of combustible gases such as hydrogen, carbon monoxide, and methane.
この発生ガスは排出管５ｂから導出され、圧力
調整弁１０を通つて、熱交換器１１に入り、こゝ
で、処理槽５に入る汚泥を予熱し、さらに図示さ
れていない精製装置に送られ、洗浄、除湿、除塵
等の処理を受けた後、所定のガスタンクに貯蔵さ
れる。 This generated gas is led out from the exhaust pipe 5b, passes through the pressure regulating valve 10, enters the heat exchanger 11, preheats the sludge entering the treatment tank 5, and is further sent to a purification device (not shown). After undergoing processing such as cleaning, dehumidification, and dust removal, it is stored in a designated gas tank.
処理槽５のガス圧は、圧力調整弁１０により一
定値に保たれるが、このガス圧はサービスタンク
４と処理槽５内の汚泥レベル差Ｈを規定する。 The gas pressure in the treatment tank 5 is maintained at a constant value by a pressure regulating valve 10, and this gas pressure defines the sludge level difference H between the service tank 4 and the treatment tank 5.
而して、サービスタンク４の汚泥レベルは一定
であるから、処理槽５内の汚泥レベルにも一定に
保たれる。 Since the sludge level in the service tank 4 is constant, the sludge level in the treatment tank 5 is also kept constant.
また、無機質のスラグ１２は処理槽５の底部に
溜り、こゝから排出管５ｃを経てスラグ溜１３に
排出される。 Further, the inorganic slag 12 accumulates at the bottom of the treatment tank 5, and is discharged from there to the slag reservoir 13 via the discharge pipe 5c.
而して、スラグ排出管の開口部高さを適正に選
定しておくと共に、その温度を処理槽内発生ガス
等により高温に保持しておくと、スラグ１２は連
続的に押し出され、かつ処理槽５内のスラグレベ
ルが自動的に略一定に保たれるものである。 Therefore, if the opening height of the slag discharge pipe is appropriately selected and the temperature is maintained at a high temperature by gas generated in the treatment tank, the slag 12 will be continuously pushed out and the treatment will continue. The slag level in the tank 5 is automatically maintained at a substantially constant level.
従つて、電源９から供給される電力量を、処理
すべき汚泥の性状等に合わせて、最も効率よく熱
分解ガスを発生し得るよう定めておけば、以降は
ほとんど自動的に装置を運転、稼動せしめ得るも
のである。 Therefore, if the amount of electricity supplied from the power source 9 is determined in accordance with the properties of the sludge to be treated to generate pyrolysis gas most efficiently, the device will be operated almost automatically from then on. It can be put into operation.
なお、冷却水コイル７は、主として誘導加熱用
コイル８を保護するため設けるものであり、供給
管７ａから冷水を供給し、回収管７ｂからこれを
回収して、誘導加熱用コイル８が過熱されないよ
うにする。 Note that the cooling water coil 7 is provided mainly to protect the induction heating coil 8, and supplies cold water from the supply pipe 7a and recovers it from the recovery pipe 7b to prevent the induction heating coil 8 from overheating. Do it like this.
本発明は叙上の如く構成されるから、本発明に
よるときは、大量の汚泥を極めて低コストで処理
することができ、かつその際所要電力を賄い得る
程大量の良質な燃料ガスが得られるものである。
また本発明装置から回収される無機質スラグは、
ガラス状の物質であり、舗装材、建材、コンクリ
ート等の骨材として利用できるもので、二次公害
を発生させるおそれは全くない。 Since the present invention is constructed as described above, it is possible to treat a large amount of sludge at extremely low cost, and at the same time, a large amount of high-quality fuel gas can be obtained to cover the required electricity. It is something.
In addition, the inorganic slag recovered from the device of the present invention is
It is a glass-like substance that can be used as aggregate for paving materials, building materials, concrete, etc., and there is no risk of causing secondary pollution.
なお、本発明を実施する際の誘導加熱電流の周
波数は、炉の規模や汚泥の性状にもよるが、通常
は0.1〜10KHzとすることが推奨される。 Note that the frequency of the induction heating current when carrying out the present invention depends on the scale of the furnace and the properties of the sludge, but it is usually recommended that it be 0.1 to 10 KHz.
また、本発明は、加熱溶融、分解、焼却等の対
象を汚泥と表現しているが、例えば、生活廃水や
各種産業廃水を活性汚泥処理法により処理したも
のを凝集、沈澱、さらには脱水処理等して回収し
た所謂汚泥に限るものではなく、例えば、生活廃
棄物や各種産業廃棄物を回収したものを種々分別
或いはさらに粉砕等し、無機不燃物等を除去した
各種有機物、水分、その他を含む焼却処分対象物
に対して、或いはさらに、格別精細な分別をして
ない廃棄物の処理等にも適用できるもので、本発
明に於ける上記汚泥とは、このような廃棄物等を
含包するものである。 In addition, in the present invention, the object to be heated, melted, decomposed, incinerated, etc. is expressed as sludge, but for example, domestic wastewater and various industrial wastewater treated by the activated sludge treatment method can be subjected to flocculation, sedimentation, and further dewatering treatment. It is not limited to the so-called sludge collected by the above-mentioned methods, but for example, it is possible to collect various types of household waste and various industrial wastes, separate them into various types, or further crush them, remove inorganic non-combustible materials, etc., and collect various organic substances, water, and other substances. The sludge in the present invention is applicable to the treatment of wastes that contain such waste, or even waste that has not been separated in particular detail. It is something to wrap.
また、本発明の構成は、叙上の実施例のみに限
定されるものではなく、例えば、処理槽の形状、
汚泥装填装置、スラグ排出装置等の構成は、本発
明の目的の範囲内で自由に設計変更できるもので
あり、本発明はそれらのすべてを包摂するもので
ある。 Furthermore, the configuration of the present invention is not limited to the above-mentioned embodiments, but includes, for example, the shape of the processing tank,
The configurations of the sludge loading device, slag discharge device, etc. can be freely modified within the scope of the purpose of the present invention, and the present invention encompasses all of them.
図面は本発明にかゝる汚泥処理装置の一実施例
を示す模型図である。
１……汚泥貯溜池、２……汚泥、３……スクリ
ユーコンベア、４……サービスタンク、５……処
理槽、６……断熱材、７……冷却水コイル、８…
…誘導加熱用コイル、９……電源、１０……圧力
調整弁、１１……熱交換器、１２……スラグ、１
３……スラグ溜。
The drawing is a model diagram showing an embodiment of the sludge treatment apparatus according to the present invention. 1... Sludge reservoir, 2... Sludge, 3... Screw conveyor, 4... Service tank, 5... Processing tank, 6... Insulation material, 7... Cooling water coil, 8...
... Induction heating coil, 9 ... Power supply, 10 ... Pressure regulating valve, 11 ... Heat exchanger, 12 ... Slag, 1
3...Slag sump.
Claims (1)
有する耐熱性導電材料から成る処理槽と、上記処
理槽を囲む断熱材と、該断熱材の中にあつて前記
処理槽を加熱するために処理槽をめぐつて設けら
れた誘導加熱コイルと、該誘導加熱コイルに高周
波誘導加熱電流を供給する電源と、上記処理槽内
に一定圧力で汚泥を装填し得る汚泥供給装置と、
上記処理槽の排出ガス圧を一定に保持する圧力制
御装置と、上記処理槽内のスラグ量を一定に保持
し得るスラグ自動排出装置とから成る汚泥処理装
置。1. A treatment tank made of a heat-resistant conductive material having a sludge loading pipe, a gas discharge pipe, and a slag discharge pipe, a heat insulating material surrounding the treatment tank, and a treatment tank located within the heat insulating material for heating the treatment tank. an induction heating coil provided around the tank; a power source that supplies high-frequency induction heating current to the induction heating coil; and a sludge supply device capable of loading sludge into the treatment tank at a constant pressure;
A sludge treatment device comprising a pressure control device that maintains a constant exhaust gas pressure in the treatment tank, and an automatic slag discharge device that can maintain a constant amount of slag in the treatment tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10433578A JPS5531432A (en) | 1978-08-29 | 1978-08-29 | Sludge treating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10433578A JPS5531432A (en) | 1978-08-29 | 1978-08-29 | Sludge treating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5531432A JPS5531432A (en) | 1980-03-05 |
| JPS6242680B2 true JPS6242680B2 (en) | 1987-09-09 |
Family
ID=14378055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10433578A Granted JPS5531432A (en) | 1978-08-29 | 1978-08-29 | Sludge treating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5531432A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63234184A (en) * | 1987-03-24 | 1988-09-29 | Toshiba Corp | Dust monitor |
| JP2013228169A (en) * | 2012-04-26 | 2013-11-07 | Toshiba Corp | Arc deflection device, incineration apparatus, and incineration method using the same |
| JP7080246B2 (en) * | 2017-03-24 | 2022-06-03 | アーエーフェ・インゲニエリア・ソシエダッド・リミターダ | Waste disposal unit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4836270A (en) * | 1971-09-14 | 1973-05-28 |
-
1978
- 1978-08-29 JP JP10433578A patent/JPS5531432A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4836270A (en) * | 1971-09-14 | 1973-05-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5531432A (en) | 1980-03-05 |
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