JPH01288400A - Apparatus for evaporating and drying sludge - Google Patents
Apparatus for evaporating and drying sludgeInfo
- Publication number
- JPH01288400A JPH01288400A JP63117018A JP11701888A JPH01288400A JP H01288400 A JPH01288400 A JP H01288400A JP 63117018 A JP63117018 A JP 63117018A JP 11701888 A JP11701888 A JP 11701888A JP H01288400 A JPH01288400 A JP H01288400A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- gas turbine
- turbine engine
- energy
- supplied
- 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
- 239000010802 sludge Substances 0.000 title claims abstract description 34
- 238000001704 evaporation Methods 0.000 title claims description 4
- 238000001035 drying Methods 0.000 title abstract description 10
- 239000007789 gas Substances 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000002918 waste heat Substances 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 208000005156 Dehydration Diseases 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、汚泥を蒸発乾燥する汚泥の蒸発乾燥装置に関
する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a sludge evaporation drying apparatus for evaporating and drying sludge.
（従来の技術）
従来、減容化を目的とする汚泥処理装置は、数域脱水機
にて１次脱水を行い含水率を低下させ（−船釣には、７
０〜８０％）、更に、汚泥乾燥機にて２次脱水を行い、
焼却炉にて焼却減容化を行う例が多い。(Prior art) Conventionally, sludge treatment equipment for the purpose of volume reduction performs primary dewatering using a multi-zone dehydrator to lower the water content (for boat fishing,
0 to 80%), and then perform secondary dehydration in a sludge dryer.
There are many cases where the volume is reduced by incineration in an incinerator.
その場合、汚泥乾燥機に供給する熱源は焼却炉の焼却排
熱を焼却排熱ボイラで回収して用いる場合があるが、−
船釣には、汚泥の持つ発熱量では汚泥乾燥機で脱水ケー
キ全てを焼却炉で自燃可能かレベルの低含水率（−船釣
には５０〜６０％）に脱水ケーキを乾燥できるだけの熱
回収ができない。In that case, the heat source supplied to the sludge dryer may be the incineration waste heat of the incinerator, which is recovered by the incineration waste heat boiler, but -
For boat fishing, the calorific value of sludge requires sufficient heat recovery to dry the dehydrated cake in a sludge dryer to a low moisture content (-50 to 60% for boat fishing) that can be self-combusted in an incinerator. I can't.
従って燃料ボイラーで加熱蒸気を作り加熱蒸気を乾燥機
に供給する必要がある。Therefore, it is necessary to generate heating steam with a fuel boiler and supply the heating steam to the dryer.
従って汚泥処理の運転費は加熱蒸気の製造費に依存し、
乾燥機に供給する加熱蒸気を燃料ボイラーで供給する方
法では運転費の改善はできない。Therefore, the operating cost of sludge treatment depends on the production cost of heating steam.
Operating costs cannot be improved by using a fuel boiler to supply heating steam to the dryer.
（発明が解決しようとする課題）
本発明は、汚泥乾燥機の運転費を低減することを可能と
する加熱蒸気の供給方法を目的とする。(Problems to be Solved by the Invention) The object of the present invention is to provide a heating steam supply method that makes it possible to reduce the operating cost of a sludge dryer.
（発明の構成〕
（課題を解決するための手段）
本発明によれば汚泥乾燥に必要な加熱蒸気をカスタービ
ンエンジンの排熱を排気ボイラで回収して使用するため
、ガスタービンエンジンの運転は、汚泥乾燥機の蒸気消
費量に追従した運転となり、ガスタービンエンジンに接
続された発電はからは、蒸気消費に比例した電力が発生
する。−船釣にガスタービンエンジンに供給する燃料の
エネルギーを１００とすると、回収できる蒸気エネルギ
ーは、約５０、発生する電力は約３０の比率となり蒸気
エネルギーが電力エネルギーより大きくなる。従ってガ
スタービンエンジンの運転効率としては、熱需要が大き
く、熱追従形の運転が出来る場合にもっとも効率が向上
する。(Structure of the Invention) (Means for Solving the Problems) According to the present invention, the exhaust heat of the gas turbine engine is recovered in the exhaust boiler and used as the heated steam necessary for drying the sludge, so the operation of the gas turbine engine is The operation follows the steam consumption of the sludge dryer, and the power generation connected to the gas turbine engine generates electricity proportional to the steam consumption. 100, the steam energy that can be recovered is at a ratio of approximately 50, and the electric power generated is at a ratio of approximately 30, meaning that steam energy is greater than electric energy.Therefore, the operating efficiency of a gas turbine engine is that the heat demand is large, and the heat-following type Efficiency will be most improved if the vehicle can be operated.
（作 用）
ガスタービンエンジンを熱追従型の運転を行なうことに
より、発生する電力の消費も行なうことが出来るため、
ガスタービンエンジンに供給するエネルギーを有効に利
用することになり、単に燃料を燃焼させて加熱蒸気を得
る従来方法よりもエネルギーコストの低減が実現出来る
。(Function) By operating the gas turbine engine in a heat-following manner, it is possible to consume the generated electricity.
The energy supplied to the gas turbine engine is used effectively, and energy costs can be reduced compared to the conventional method of simply burning fuel to obtain heated steam.
（実施例） 以下本発明を第１図に示す一実施例について説明する。(Example) The present invention will be described below with reference to an embodiment shown in FIG.
汚泥を蒸発乾燥させる汚泥乾燥ＢＩ（１２）に供給する
加熱蒸気を発生させる排熱ボイラー（１４）と排熱ボイ
ラーを備えたガスタービンエンジン（１５）とガスター
ビンエンジンの軸動力を電気エネルギーに変換する発電
機（１６）から構成されている。尚、１１は脱水機、１
３は焼却炉、１７は排気ダクト、１８は汚泥スラリー、
１９は脱水ケーキ、２０は乾燥汚泥、２１は焼却灰、２
２は加熱蒸気、２３は焼料ボイラ、２４は焼却排熱ボイ
ラである。An exhaust heat boiler (14) that generates heated steam to be supplied to the sludge drying BI (12) that evaporates and dries sludge, a gas turbine engine (15) equipped with an exhaust heat boiler, and converts the shaft power of the gas turbine engine into electrical energy. It consists of a generator (16). In addition, 11 is a dehydrator, 1
3 is an incinerator, 17 is an exhaust duct, 18 is a sludge slurry,
19 is dehydrated cake, 20 is dried sludge, 21 is incineration ash, 2
2 is a heating steam, 23 is a combustion boiler, and 24 is an incineration waste heat boiler.
次に本発明のエネルギー供給方法について説明する。Next, the energy supply method of the present invention will be explained.
汚泥乾燥機で汚泥を蒸発乾燥するのに必要な加熱蒸気を
ガスタービンエンジンの排熱回収で供給すると同時に、
発電機から電力エネルギーを得、この電力エネルギーを
汚泥処理と関連設備の電力需要に供給する。At the same time, the heating steam necessary to evaporate and dry the sludge in the sludge dryer is supplied by exhaust heat recovery from the gas turbine engine.
Electrical energy is obtained from the generator and this electrical energy is supplied to the electricity needs of sludge treatment and related equipment.
その結果、ガスタービンエンジンに供給したエネルギー
は、汚泥の乾燥に使用され、同時に電力エネルギーに変
換される。一般にガスタービンエンジンによる発電コス
トは、電力を購入する場合よりも高価になるが、本発明
では、同時に汚泥処理も行なうため、発電コストと電力
購入コストの差のコストが汚泥処理に要する熱エネルギ
ーコストとなり、結果的に汚泥の処理コストの低減が実
現できる。As a result, the energy supplied to the gas turbine engine is used to dry the sludge and at the same time is converted into electrical energy. Generally, the cost of power generation using a gas turbine engine is more expensive than purchasing electricity, but in the present invention, sludge treatment is also performed at the same time, so the difference between the power generation cost and the power purchase cost is the thermal energy cost required for sludge treatment. As a result, the cost of sludge treatment can be reduced.
尚前記実施例では、機械脱水機、乾燥、焼却のプロセス
であるが、機械脱水機と焼却の両方がないシステムまた
はどちらか片方がないプロセスにおいても適用て“きる
。In the above embodiments, the processes include a mechanical dehydrator, drying, and incineration, but the present invention can also be applied to a system that does not have both a mechanical dehydrator and incineration, or a process that does not have either one of them.
以上のように、本発明によれば、ガスタービンエンジン
の排熱から汚泥乾燥用のエネルギーを得るため、汚泥処
理コストの低減が可能となる。As described above, according to the present invention, the energy for drying sludge is obtained from the exhaust heat of the gas turbine engine, so that it is possible to reduce the cost of sludge treatment.
第１図は本発明の一実施例を示す蒸気乾燥装置の構成図
である。
１２・・・汚泥乾燥機 １４・・・排熱ボイ
ラー１５・・・ガスタービンエンジン １６・・・発電
機代理人 弁理士 則 近 憲 侑
同 山 下 −
第１図FIG. 1 is a block diagram of a steam drying apparatus showing an embodiment of the present invention. 12...Sludge dryer 14...Exhaust heat boiler 15...Gas turbine engine 16...Generator agent Patent attorney Nori Chika Ken Yudo Yamashita - Figure 1
Claims (1)
ービン発電機と、ガスタービン発電機を駆動するガスタ
ービンの排熱を回収して加熱蒸気を発生する排熱ボイラ
と、この排熱ボイラで発生する加熱蒸気を供給して汚泥
の乾燥を行なう汚泥乾燥機とを具備してなる汚泥の蒸発
乾燥装置。A gas turbine generator supplies electricity to the sludge treatment equipment that dries the sludge, and a waste heat boiler generates heating steam by recovering waste heat from the gas turbine that drives the gas turbine generator. A sludge evaporation dryer comprising: a sludge dryer that supplies heated steam to dry sludge;
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63117018A JPH01288400A (en) | 1988-05-16 | 1988-05-16 | Apparatus for evaporating and drying sludge |
| US07/343,588 US5079852A (en) | 1988-04-28 | 1989-04-27 | Sludge treating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63117018A JPH01288400A (en) | 1988-05-16 | 1988-05-16 | Apparatus for evaporating and drying sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01288400A true JPH01288400A (en) | 1989-11-20 |
Family
ID=14701409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63117018A Pending JPH01288400A (en) | 1988-04-28 | 1988-05-16 | Apparatus for evaporating and drying sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01288400A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02280899A (en) * | 1989-04-20 | 1990-11-16 | Toshiba Corp | Operation apparatus of sludge treatment |
| JPH04225888A (en) * | 1990-06-05 | 1992-08-14 | Robert M Williams | Method and device for reducing moisture of waste |
| JP2001321740A (en) * | 2000-05-15 | 2001-11-20 | Okawara Mfg Co Ltd | Drying method and drying system for food waste |
| JP2018502717A (en) * | 2014-11-14 | 2018-02-01 | ビル アンド メリンダ ゲイツ ファウンデーション | Multifunctional fecal waste / garbage disposal equipment and related methods |
-
1988
- 1988-05-16 JP JP63117018A patent/JPH01288400A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02280899A (en) * | 1989-04-20 | 1990-11-16 | Toshiba Corp | Operation apparatus of sludge treatment |
| JPH04225888A (en) * | 1990-06-05 | 1992-08-14 | Robert M Williams | Method and device for reducing moisture of waste |
| JP2001321740A (en) * | 2000-05-15 | 2001-11-20 | Okawara Mfg Co Ltd | Drying method and drying system for food waste |
| JP2018502717A (en) * | 2014-11-14 | 2018-02-01 | ビル アンド メリンダ ゲイツ ファウンデーション | Multifunctional fecal waste / garbage disposal equipment and related methods |
| JP2019042737A (en) * | 2014-11-14 | 2019-03-22 | ビル アンド メリンダ ゲイツ ファウンデーション | Multifunctional feces waste and waste disposal equipment and related method |
| US11111824B2 (en) | 2014-11-14 | 2021-09-07 | Bill & Melinda Gates Foundation | Multi-functional fecal waste and garbage processor and associated methods |
| US11566543B2 (en) | 2014-11-14 | 2023-01-31 | Bill & Melinda Gates Foundation | Multi-functional fecal waste and garbage processor and associated methods |
| US11885243B2 (en) | 2014-11-14 | 2024-01-30 | Bill & Melinda Gates Foundation | Multi-functional fecal waste and garbage processor and associated methods |
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