JPS59122813A - Method for drying and incinerating sludge of waste water treatment - Google Patents
Method for drying and incinerating sludge of waste water treatmentInfo
- Publication number
- JPS59122813A JPS59122813A JP22950882A JP22950882A JPS59122813A JP S59122813 A JPS59122813 A JP S59122813A JP 22950882 A JP22950882 A JP 22950882A JP 22950882 A JP22950882 A JP 22950882A JP S59122813 A JPS59122813 A JP S59122813A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- drying
- incinerating
- combustible waste
- 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
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
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
-
- 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
Abstract
Description
【発明の詳細な説明】
本発明はパルプ製造工程及び各種排水処理設備から発生
する活性及び凝沈汚泥等の乾燥焼却方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for drying and incinerating activated and coagulated sludge generated from pulp manufacturing processes and various wastewater treatment facilities.
従来、例えばパルプ排水処理設備である活性汚泥設備並
びに凝集沈殿設備より発生する汚泥は脱水性が悪く水分
含有量が多いため自燃が不可能で、そのために重油助燃
によりロータリーキルンその他の焼却炉によシ焼却後廃
棄する場合、焼却コストが高くついた。Conventionally, for example, sludge generated from activated sludge equipment and coagulation sedimentation equipment, which are pulp wastewater treatment equipment, has poor dewatering properties and has a high water content, making it impossible to self-combust. When disposing of waste after incineration, the cost of incineration was high.
本発明の目的はこれらの欠点を解消するため、乾燥及び
焼却部を設えたロータリーキルン型焼却炉を用い、重油
に替え可燃性廃棄物を助燃用燃料として利用して重油を
まったく使用しないでも汚泥の乾燥焼却が行える乾燥焼
却方法を提供することにある。The purpose of the present invention is to eliminate these drawbacks by using a rotary kiln type incinerator equipped with a drying and incineration section, and by using combustible waste as an auxiliary fuel instead of heavy oil, it is possible to eliminate sludge without using heavy oil at all. An object of the present invention is to provide a dry incineration method that allows dry incineration.
即ち、本発明は排水処理汚泥単独又は可燃性廃棄物を混
合して焼却炉の乾燥部に供給乾燥し、乾燥汚泥と排水処
理汚泥及び可燃性廃棄物を混合し、焼却部に供給焼却す
ることを特徴とする排水処理汚泥の乾燥焼却方法である
。That is, the present invention involves supplying wastewater treatment sludge alone or a mixture of combustible waste to a drying section of an incinerator for drying, and mixing the dried sludge, wastewater treatment sludge, and combustible waste and supplying the mixture to an incineration section for incineration. This is a method for drying and incinerating wastewater treatment sludge.
本発明は可燃性廃棄物（Ｃ）を助燃しながら焼却し、引
続き焼却部（８）の排熱を利用することにより乾燥部（
２）で汚泥を乾燥し、乾燥した汚泥（Ｂ）を焼却部（３
）で効率良く燃焼焼却することが出来る方法である。The present invention incinerates the combustible waste (C) with auxiliary combustion, and then uses the exhaust heat of the incineration section (8) to produce a drying section (
The sludge is dried in step 2), and the dried sludge (B) is transferred to the incineration section (step 3).
) is a method that allows efficient combustion and incineration.
本発明の実施態様を第１図によシ説明する。An embodiment of the present invention will be explained with reference to FIG.
脱水機（８）で水分８０〜８５％に脱水された、凝集沈
殿、活性汚泥等の排水処理脱水汚泥（ＡＩ）は可燃性廃
棄物と混合するため混合機（４）へコンペア等で運搬さ
れる。Wastewater treatment dewatered sludge (AI), such as coagulated sedimentation and activated sludge, which has been dehydrated to 80 to 85% moisture in the dehydrator (8), is transported to the mixer (4) using a comper or the like to be mixed with combustible waste. Ru.
混合された汚泥は供給口（５）よシ乾燥部（２）に供給
され焼却部（８）の燃焼ガスによって乾燥される。The mixed sludge is supplied to the drying section (2) through the supply port (5) and dried by the combustion gas from the incineration section (8).
乾燥部に供給する脱水汚泥は単独で供給しても良いが可
燃性廃棄物を混合した方が排ガスとの接触が良くなシ乾
燥がよシ効果的に実施される。The dehydrated sludge supplied to the drying section may be supplied alone, but if combustible waste is mixed with it, it will have better contact with the exhaust gas and drying will be carried out more effectively.
混合機（４）については脱水汚泥と可燃性廃棄物がよシ
効果的に混合するものであれば良く、特に限定するもの
ではない。The mixer (4) is not particularly limited as long as it mixes dehydrated sludge and combustible waste effectively.
乾燥部（２）で乾燥処理された乾燥汚泥（Ｂ）は水分が
１０〜１５％となり・脱水汚泥（Ａ、）及び可燃性廃棄
物（Ｑ）と混合させるために混合機（６）に運ばれる。The dried sludge (B) that has been dried in the drying section (2) has a moisture content of 10 to 15% and is transported to the mixer (6) to be mixed with the dehydrated sludge (A,) and combustible waste (Q). It will be done.
可燃性廃棄物（Ｑとしては、木材樹皮、木屑、紙屑、布
等の可燃性物であれば何んでも良い。これらは又混合機
（６）や供給口（７）で支障を起さない形状のものであ
れば良いし、可燃性廃棄物Ｔｏ）の大きさを振動型スク
リーン等のスクリーンで選別することがよシ好ましく、
その場合スクリューコンベア等での混合機（６）への搬
送が最適である。供給口（７）より焼却部（８）に供給
された混合物は可燃性廃棄物の助燃によシ焼却される。Combustible waste (Q can be any combustible material such as wood bark, wood chips, paper scraps, cloth, etc.) These also do not cause any problems in the mixer (6) or supply port (7). Any shape is acceptable, and it is preferable to use a screen such as a vibrating screen to sort out the size of the combustible waste (To).
In that case, conveyance to the mixer (6) using a screw conveyor or the like is optimal. The mixture supplied to the incineration section (8) from the supply port (7) is incinerated by auxiliary combustion of combustible waste.
焼却部では最高温度８００〜１０００℃で焼却され、こ
の排ガスは乾燥部で汚泥の乾燥に熱源として利用される
。In the incineration section, the sludge is incinerated at a maximum temperature of 800 to 1000°C, and this exhaust gas is used as a heat source for drying the sludge in the drying section.
乾燥部（２）と焼却部（８）に供給される脱水汚泥の割
合はＡ、：Ａ、＝２０：８０〜５０：５０絶乾重量％が
好ましく乾燥部（２）の供給が２０絶乾重量％以下では
焼却部での焼却が良くなく５０絶乾重量％以上では乾燥
部での乾燥が不充分となシ助用
燃−〇可燃性廃棄物（０１の量を多くしなければならず
好ましくない。The ratio of dehydrated sludge supplied to the drying section (2) and the incineration section (8) is preferably A, :A, = 20:80 to 50:50 bone dry weight%, and the supply to the drying section (2) is 20 bone dry weight%. If the amount is less than 50% by weight, the incineration in the incineration section is not good, and if it is more than 50% by weight, the drying in the drying section is insufficient. Undesirable.
混合機（６）における汚泥と可燃性廃棄物の割合は仏１
：（Ｃ！１＝４０：６０〜６０− ： ４０絶乾重量％
が好ましい。可燃性廃棄物ＣＱＯ量が４０絶乾重量％以
下では汚泥の焼却に完全でなく、６０絶乾重量％以上で
はエネルギーが不経済である。The ratio of sludge and combustible waste in the mixer (6) is 1.
:(C!1=40:60~60- : 40 bone dry weight%
is preferred. If the amount of combustible waste CQO is less than 40% by bone dry weight, the sludge cannot be completely incinerated, and if it is more than 60% by bone dry weight, it is energy uneconomical.
焼却部（８）からの焼却灰はコンベアによシホッパ−（
ｚｔ）に貯蔵される。The incinerated ash from the incineration section (8) is transferred to the conveyor into the hopper (
zt).
乾燥部よシ排カスは２５０〜８００℃で排出された後ウ
ォータースクラバー（１２）、排風機（１８）を経て煙
突（１４）よシ大気に放出される。After being discharged from the drying section at a temperature of 250 to 800°C, the waste is discharged into the atmosphere through a chimney (14) through a water scrubber (12) and an exhaust fan (18).
本発明による実施例を下記条件で実施した、条件と結果
を第１表に示す。Examples according to the present invention were carried out under the following conditions, and the conditions and results are shown in Table 1.
第１表
このように本発明に基づく方法によれば可燃性廃棄物を
助燃して、まったく重油を使用しないで乾燥、焼却を連
続した一つの設備で出来ることは言うまでもなく、可燃
性廃棄物の燃焼によシ発生する熱を乾燥部、焼却部で有
効利用出来ることから工業的及び経済的にその価値は大
きい。Table 1 It goes without saying that according to the method based on the present invention, combustible waste can be assisted in combustion, and drying and incineration can be carried out in one continuous facility without using any heavy oil. Since the heat generated by combustion can be effectively used in the drying section and the incineration section, it is of great value industrially and economically.
Ａ／、 Ａ、 、 Ａ、 ： 活性汚泥及び凝集沈殿
汚泥Ｂ： 乾燥汚泥
Ｃ： 可燃性廃棄物
１：焼却炉
２：乾燥部
８：焼却部
４：混合機
５：供給口
６：混合機
７：供給口
８：脱水機
９： 振動型スクリーン
１０： スクリューコンベア
１１： ホッパー
１２： スクラバー
１８：排風機
１４：煙 突
手続補正書（方式）
昭和１３年ダ月１１ 日
特許庁長官 若杉和夫 殿
２、発明の名称
１１ト水又５）！汚シ琶μつ乾大奈＊尭去Ｐ方ヲ東３、
補正をする者
事件との関係 特 許 出願人
４、代理人
居 所 〒１００東京都千代田区丸の内三丁目４番２号
三菱製紙株式会社内
電話（２１３） ３６４１
昭和３８年３月２９日（発より
６、補正により増加する発明の数
８、補正の内容
１）、 明／１ｊｌＴ婁、開動っ箭羊ち歓すっ欄っ条
初う４１１′、 ラ（・１１ｐ１１１．ｉ 発すっ一
粂？ジ４４１３）を〕テテラ９１−レし略図。１１坪入
する。A/, A, , A, : Activated sludge and coagulated sedimentation sludge B: Dry sludge C: Combustible waste 1: Incinerator 2: Drying section 8: Incineration section 4: Mixer 5: Supply port 6: Mixer 7 : Supply port 8: Dewatering machine 9: Vibrating screen 10: Screw conveyor 11: Hopper 12: Scrubber 18: Exhaust fan 14: Chimney Procedure amendment (method) Date: December 11, 1930 Director-General of the Patent Office Kazuo Wakasugi 2 , Title of the invention 11 To Mizumata 5)! 3,
Relationship with the case of the person making the amendment Patent Applicant 4, agent Address: Mitsubishi Paper Mills Co., Ltd., 3-4-2 Marunouchi, Chiyoda-ku, Tokyo 100, Japan Telephone: (213) 3641 March 29, 1964 (Issued) From 6, the number of inventions increases due to the amendment 8, the content of the amendment 1), Ming/1jlT 婁, the opening of the first page 411'. 4413)] Tetera 91-re schematic diagram. Enter 11 tsubo.
Claims (1)
乾燥部に供給乾燥し、乾燥汚泥と排水処理汚泥及び可燃
性廃棄物を混合し、焼却部に供給焼却することを特徴と
する排水処理汚泥の乾燥、焼却方法。Waste water characterized in that wastewater treatment sludge alone or mixed with combustible waste is supplied to a drying section of an incinerator for drying, and dried sludge, wastewater treatment sludge and combustible waste are mixed and then supplied to an incineration section for incineration. Drying and incineration method of treated sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22950882A JPS59122813A (en) | 1982-12-28 | 1982-12-28 | Method for drying and incinerating sludge of waste water treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22950882A JPS59122813A (en) | 1982-12-28 | 1982-12-28 | Method for drying and incinerating sludge of waste water treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59122813A true JPS59122813A (en) | 1984-07-16 |
Family
ID=16893269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22950882A Pending JPS59122813A (en) | 1982-12-28 | 1982-12-28 | Method for drying and incinerating sludge of waste water treatment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59122813A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06193842A (en) * | 1992-02-18 | 1994-07-15 | Tokumitsu Matsumoto | Melting incinerator and melting incinerating method |
| CN103900093A (en) * | 2012-12-31 | 2014-07-02 | 江苏和顺环保股份有限公司 | Incinerating and sludge drying process |
| CN106352354A (en) * | 2016-09-09 | 2017-01-25 | 苏州泥宝环境科技有限公司 | Industrial sludge combustion processing method |
-
1982
- 1982-12-28 JP JP22950882A patent/JPS59122813A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06193842A (en) * | 1992-02-18 | 1994-07-15 | Tokumitsu Matsumoto | Melting incinerator and melting incinerating method |
| JP2525105B2 (en) * | 1992-02-18 | 1996-08-14 | 徳光 松元 | Melting incinerator |
| CN103900093A (en) * | 2012-12-31 | 2014-07-02 | 江苏和顺环保股份有限公司 | Incinerating and sludge drying process |
| CN106352354A (en) * | 2016-09-09 | 2017-01-25 | 苏州泥宝环境科技有限公司 | Industrial sludge combustion processing method |
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