JP2005279331A5 - - Google Patents
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- JP2005279331A5 JP2005279331A5 JP2004093396A JP2004093396A JP2005279331A5 JP 2005279331 A5 JP2005279331 A5 JP 2005279331A5 JP 2004093396 A JP2004093396 A JP 2004093396A JP 2004093396 A JP2004093396 A JP 2004093396A JP 2005279331 A5 JP2005279331 A5 JP 2005279331A5
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- JP
- Japan
- Prior art keywords
- sludge
- dryer
- dehydrated
- dehumidifier
- exhaust gas
- 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.)
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Description
下水処理場においては、脱水機で凝集剤を用いて汚泥を脱水し、この脱水汚泥を乾燥機で乾燥した後、この乾燥汚泥を焼却炉で焼却処理するとともに、焼却に伴い発生する排ガスをスクラバで水等の洗浄液と接触させて洗浄することが行われている。このスクラバの排液は、下水汚泥焼却処理システムの最終的な廃熱量の半分以上を占めるため、その有効利用が求められている。 In a sewage treatment plant, sludge is dehydrated with a flocculant in a dehydrator, and this dehydrated sludge is dried with a drier. In this method, cleaning is performed by contacting with a cleaning liquid such as water. The scrubber effluent accounts for more than half of the final waste heat amount of the sewage sludge incineration treatment system, and its effective use is required.
(作用効果)
本項記載の発明は、請求項1記載の発明と同様の作用効果を奏し、特に廃熱を利用して脱水汚泥を自燃レベルまで乾燥させることにより、焼却炉において燃焼継続のための燃料が不要となり、ランニングコストを顕著に低減させることができるものである。
(Function and effect)
The invention of this claim, wherein the advantages similar to those of the first aspect of the present invention, by drying the dewatered sludge to a Ji燃levels particularly using waste heat, the fuel for combustion continues at incinerators It becomes unnecessary and the running cost can be remarkably reduced.
さらに、脱水汚泥を自燃レベルまで乾燥させるために、乾燥機2内の気圧を低下させるための真空吸引手段が設けられている。具体的に図示形態では、乾燥機2内で発生する排ガス(脱水汚泥から除去された水分を主体とする)を真空ポンプ7で吸引するように構成している。この場合、排ガスは除湿装置8を介して除湿した後焼却炉3に供給し、燃焼空気とするのが好ましい。除湿装置8は特に限定されないが、スクラバやミストセパレータを好適に使用することができる。真空ポンプ7による吸引の度合い(乾燥機内の気圧)は、温水による加熱条件や乾燥機2の処理量、脱水汚泥の水分量等を考慮して適宜設定すれば良いが、通常の場合、約10000〜15000Pa程度とするのが好ましい。 Furthermore, in order to dry the dewatered sludge to the self-combustion level, a vacuum suction means for reducing the atmospheric pressure in the dryer 2 is provided. Specifically, in the illustrated form, exhaust gas (mainly water removed from dehydrated sludge) generated in the dryer 2 is sucked by the vacuum pump 7. In this case, the exhaust gas is preferably dehumidified via the dehumidifier 8 and then supplied to the incinerator 3 to form combustion air. Although the dehumidifier 8 is not particularly limited, a scrubber or a mist separator can be preferably used. The degree of suction by the vacuum pump 7 (atmospheric pressure in the dryer) may be appropriately set in consideration of the heating conditions with hot water, the treatment amount of the dryer 2, the moisture content of the dewatered sludge, etc. ˜15000 Pa is preferable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004093396A JP4466996B2 (en) | 2004-03-26 | 2004-03-26 | Sludge incineration equipment and sludge incineration method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004093396A JP4466996B2 (en) | 2004-03-26 | 2004-03-26 | Sludge incineration equipment and sludge incineration method |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2005279331A JP2005279331A (en) | 2005-10-13 |
JP2005279331A5 true JP2005279331A5 (en) | 2007-01-18 |
JP4466996B2 JP4466996B2 (en) | 2010-05-26 |
Family
ID=35178291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004093396A Expired - Fee Related JP4466996B2 (en) | 2004-03-26 | 2004-03-26 | Sludge incineration equipment and sludge incineration method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4466996B2 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5027697B2 (en) * | 2008-03-13 | 2012-09-19 | メタウォーター株式会社 | Sewage sludge treatment method |
CN102167488B (en) * | 2011-01-21 | 2012-11-21 | 上海伏波环保设备有限公司 | Non-contact type sludge drying system utilizing flue gas afterheat |
JP5632410B2 (en) * | 2012-03-13 | 2014-11-26 | 月島機械株式会社 | Heat treatment equipment and method |
JP5591268B2 (en) * | 2012-03-13 | 2014-09-17 | 月島機械株式会社 | Heat treatment equipment and method |
JP5591269B2 (en) * | 2012-03-13 | 2014-09-17 | 月島機械株式会社 | Heat treatment equipment and method |
CN102976575A (en) * | 2012-11-29 | 2013-03-20 | 广州市越堡水泥有限公司 | Sludge treatment system and method in cement kiln |
JP6086944B2 (en) * | 2015-06-12 | 2017-03-01 | 三菱重工環境・化学エンジニアリング株式会社 | Sludge incineration plant |
CN105819644B (en) * | 2016-05-25 | 2019-05-03 | 北京航纳科技有限公司 | A kind of oily sludge innocuity disposal system and method |
CN106122973A (en) * | 2016-06-29 | 2016-11-16 | 福建正仁环保有限公司 | Steam-electric power technique is burned in the discharge of biomass smoke gas |
CN106439883B (en) * | 2016-10-11 | 2019-01-11 | 安徽国孚润滑油工业有限公司 | A kind of high-content organic matter sewage burns the processing unit and method of heat cascade utilization |
CN107013928A (en) * | 2017-05-19 | 2017-08-04 | 重庆三峰卡万塔环境产业有限公司 | A kind of method and system of grate furnace waste incineration cooperatively processing sludge |
JP2019022881A (en) * | 2018-03-29 | 2019-02-14 | 有限会社拓芯 | Desulfurization agent, anaerobic fermentation promoter, compost manufacturing promoter, desulfurization method, anaerobic fermentation method and compost manufacturing method |
KR102047835B1 (en) * | 2018-11-08 | 2019-11-22 | 주식회사 유연이앤이 | Drying apparatus of sludge |
KR102060095B1 (en) * | 2018-11-08 | 2019-12-30 | 주식회사 유연이앤이 | Sludge drying apparatus of scrubber for treating exhaust gas of ship |
JP7346959B2 (en) * | 2019-07-16 | 2023-09-20 | 富士電機株式会社 | Exhaust gas treatment equipment and exhaust gas treatment system |
CN116535073B (en) * | 2023-03-17 | 2024-04-19 | 上海市政工程设计研究总院(集团)有限公司 | Sludge-water-gas cooperative treatment method for sewage plant |
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2004
- 2004-03-26 JP JP2004093396A patent/JP4466996B2/en not_active Expired - Fee Related
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