JPS58200922A - Incinerating method of sludge - Google Patents
Incinerating method of sludgeInfo
- Publication number
- JPS58200922A JPS58200922A JP57082505A JP8250582A JPS58200922A JP S58200922 A JPS58200922 A JP S58200922A JP 57082505 A JP57082505 A JP 57082505A JP 8250582 A JP8250582 A JP 8250582A JP S58200922 A JPS58200922 A JP S58200922A
- Authority
- JP
- Japan
- Prior art keywords
- cake
- sludge
- dehydrated cake
- dried
- incineration
- 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
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000010802 sludge Substances 0.000 title claims abstract description 15
- 239000000446 fuel Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000001704 evaporation Methods 0.000 claims abstract 3
- 239000002918 waste heat Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 235000012970 cakes Nutrition 0.000 claims 4
- 235000021463 dry cake Nutrition 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 239000003921 oil Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction 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
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Sludge (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、汚泥脱水ケーキの焼却処理方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for incinerating a sludge dewatered cake.
各種汚泥の処理力法として、従来焼却処理が多用されて
いる。この場合、一般に汚泥を脱水工程により予め脱水
ケーキとしてから焼却炉へ供給する方法がとられている
が、脱水ケーキの水分は通常、６０１〜８５チであり、
したがって自燃性の良いものは別として一般の脱水ケー
キを効率良く焼却するためには多量の補助燃料が必要と
なる。Incineration has traditionally been widely used as a treatment method for various types of sludge. In this case, a method is generally used in which the sludge is first converted into a dehydrated cake through a dehydration process and then supplied to the incinerator, but the water content of the dehydrated cake is usually 601 to 85 cm.
Therefore, apart from those with good self-combustibility, a large amount of auxiliary fuel is required to efficiently incinerate general dehydrated cakes.
エネルギ削減がさけばれている現今においては、上記問
題点を解消できる方法を開発することは極めて重要であ
る。Nowadays, when energy reduction is discouraged, it is extremely important to develop a method that can solve the above problems.
本発明は、従来方法を改善し著しい省エネルギ化が達成
できる汚泥の焼却処理方法を提供することを目的とする
ものである。An object of the present invention is to provide a sludge incineration treatment method that improves conventional methods and achieves significant energy savings.
すなわち本発明は、汚泥を脱水処理した脱水ケーキの一
部を焼却工程に導き、前記脱水ケーキの残部を油を流動
媒体さした蒸発乾燥工程にて乾燥せし２め、該乾燥ケー
キを補助燃料として前記焼却工程に導き焼却処理するこ
とを特徴とする汚泥焼却方法である。That is, in the present invention, a part of the dehydrated cake obtained by dehydrating sludge is led to an incineration process, the remaining part of the dehydrated cake is dried in an evaporative drying process using oil as a fluidized medium, and the dried cake is used as an auxiliary fuel. This sludge incineration method is characterized in that the sludge is led to the incineration step and incinerated.
本発明の実施態様を図面に基づいて説明すると、脱水ケ
ーキ貯槽１内の脱水ケーキ２は、その一部が多重効用缶
３を備えた蒸発乾燥工程ｌこ、残部が流動床炉４を備え
た焼却工程にそれぞれ供給される。上記多重効用缶３は
従来公知の、油を汚泥（脱水ケーキ２）の流動媒体とし
て使用し、汚泥を減圧ドで蒸発乾燥する装置であり、こ
こで得られた乾燥ケーキ５は上記流動床炉４へ供給され
、これに供給される脱水ケーキ２の焼却用の補助燃料と
して使用される。An embodiment of the present invention will be described based on the drawings. A part of the dehydrated cake 2 in the dehydrated cake storage tank 1 is subjected to an evaporative drying process equipped with a multi-effect can 3, and the rest is equipped with a fluidized bed furnace 4. Each is supplied to the incineration process. The multi-effect can 3 is a conventionally known device that uses oil as a fluid medium for sludge (dehydrated cake 2) and evaporates and dries the sludge under reduced pressure. 4 and is used as an auxiliary fuel for incineration of the dehydrated cake 2 supplied thereto.
流動床炉４からの排ガス６と、多重効用缶３からの復水
７は廃熱ボイラ８に導かれ、発生する水蒸気９は多重効
用缶３の加熱源として利用され、排ガス１０は流動床炉
４への燃焼用空気の予熱などに有効利用される。The exhaust gas 6 from the fluidized bed furnace 4 and the condensate 7 from the multiple effect can 3 are led to a waste heat boiler 8, the generated steam 9 is used as a heating source for the multiple effect can 3, and the exhaust gas 10 is fed to the fluidized bed furnace. It is effectively used for preheating combustion air for combustion.
なお、脱水ケーキ２の焼却装置として多段炉、ロータリ
ーキルンなどを使用することもできるが、上記のように
燃料（重油）が大幅に削減できる流動床炉を用いるのが
効果的である。Although a multistage furnace, a rotary kiln, or the like can be used as the incineration device for the dehydrated cake 2, it is effective to use a fluidized bed furnace that can significantly reduce the amount of fuel (heavy oil) as described above.
本発明の効果を実験例により具体的に示すと、水分８５
チの脱水ケーキを焼却処理するのに、従来２８０１／１
−ｎ−ｓ （Ａ重油使用時）の補助燃料が必要であっ
たが、本発明にしたがって脱水グーギ全体の約５０優を
多重効用缶で乾燥し、流動床炉の補助燃料として使用し
た結果、ＡＭ油の所要量は約９０’／’ｔ−Ｄｏｓとな
り、著しい省エネルギ効果が得られた。To concretely demonstrate the effects of the present invention through experimental examples, water content of 85%
Conventionally, 2801/1 was used to incinerate the dehydrated cake of
-n-s of auxiliary fuel (when using A heavy oil) was required, but as a result of drying about 50 yen of the entire dehydrated googie in a multi-effect can according to the present invention and using it as auxiliary fuel for the fluidized bed furnace, The required amount of AM oil was approximately 90'/'t-Dos, and a significant energy saving effect was obtained.
上記実施態様のように排ガス６、復水７を廃熱ボイツ８
に供給す右ば、多重効用缶３への補助燃料が不要となる
うえ復水７の保有熱を多重効用缶３に有効利用できるの
で、汚泥焼却処理ノ”ロセスの大幅な合理化が達成でき
る。As in the above embodiment, exhaust gas 6 and condensate 7 are converted into waste heat
Since auxiliary fuel to the multi-effect can 3 is not required and the heat retained in the condensate 7 can be effectively used in the multi-effect can 3, the sludge incineration process can be significantly streamlined.
以上述べたように、本発明によれば著しい省資源・省エ
ネルギ効果が得られる。As described above, according to the present invention, significant resource and energy saving effects can be obtained.
図面は、本発明の実施態様を示すノｏ −７−トである
。
１・・・脱水ケーキ貯槽、３・・・多重効用缶、４・・
・流動床炉、８・・・廃熱ボイラ。
特許出願人 荏原インフィルコ株式会社代理人弁理士
端 山 五 −
同 弁理士 千 １） 稔
１The drawings are note o-7-illustrating embodiments of the invention. 1... Dehydrated cake storage tank, 3... Multi-effect can, 4...
・Fluidized bed furnace, 8...waste heat boiler. Patent applicant: Patent attorney representing Ebara Infilco Co., Ltd.
Go Hayama - Patent attorney Sen 1) Minoru 1
Claims (1)
処理する方法において、前記脱水ケーキの一部を、油を
流動媒体とする蒸発乾燥工程で乾燥して乾燥ケーキとな
し、該乾燥ケーキを補助燃料として前記焼却工程に導い
て前記脱水ケーキの残部を焼却処理することを特徴とす
る汚泥焼却方法。 ２、 前記蒸発乾燥工程が、ＸｔＪ配焼却工程からの排
ガスの保有熱を利用する廃熱ボイラにより得られた水蒸
気を加熱源として使用して行なわれるものである特許請
求の範囲第１項記載の方法。 ム 前記焼却工程が、流動床炉を使用して行なわれるも
のである特許請求の範囲第１項又は第２項記載の方法。 ４、 前記蒸発乾燥工程の復水を前記廃熱ボイラに供給
する特許請求の範囲第３項記載の方法。[Claims] 1. A method in which a dehydrated cake obtained by dehydrating sludge is treated in an incineration process, in which a part of the dehydrated cake is dried in an evaporative drying process using oil as a fluid medium to form a dry cake. A method for incinerating sludge, characterized in that the remaining part of the dehydrated cake is incinerated by introducing the dried cake as an auxiliary fuel into the incineration step. 2. The method according to claim 1, wherein the evaporation drying step is performed using steam obtained from a waste heat boiler that utilizes the heat retained in the exhaust gas from the XtJ distributed incineration step as a heating source. Method. M. The method according to claim 1 or 2, wherein the incineration step is performed using a fluidized bed furnace. 4. The method according to claim 3, wherein the condensate from the evaporative drying step is supplied to the waste heat boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57082505A JPS58200922A (en) | 1982-05-18 | 1982-05-18 | Incinerating method of sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57082505A JPS58200922A (en) | 1982-05-18 | 1982-05-18 | Incinerating method of sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58200922A true JPS58200922A (en) | 1983-11-22 |
Family
ID=13776356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57082505A Pending JPS58200922A (en) | 1982-05-18 | 1982-05-18 | Incinerating method of sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58200922A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02253900A (en) * | 1989-03-29 | 1990-10-12 | Masaaki Tachiki | Treatment of sludge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940262A (en) * | 1972-08-25 | 1974-04-15 | ||
| JPS518752A (en) * | 1974-07-12 | 1976-01-23 | Hitachi Chemical Co Ltd | |
| JPS56151812A (en) * | 1980-04-24 | 1981-11-25 | Hitachi Zosen Corp | Sludge incinerating apparatus |
-
1982
- 1982-05-18 JP JP57082505A patent/JPS58200922A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940262A (en) * | 1972-08-25 | 1974-04-15 | ||
| JPS518752A (en) * | 1974-07-12 | 1976-01-23 | Hitachi Chemical Co Ltd | |
| JPS56151812A (en) * | 1980-04-24 | 1981-11-25 | Hitachi Zosen Corp | Sludge incinerating apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02253900A (en) * | 1989-03-29 | 1990-10-12 | Masaaki Tachiki | Treatment of sludge |
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