JP2005279331A5 - - Google Patents

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Publication number
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
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JP2004093396A
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Japanese (ja)
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JP2005279331A (en
JP4466996B2 (en
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Priority to JP2004093396A priority Critical patent/JP4466996B2/en
Priority claimed from JP2004093396A external-priority patent/JP4466996B2/en
Publication of JP2005279331A publication Critical patent/JP2005279331A/en
Publication of JP2005279331A5 publication Critical patent/JP2005279331A5/ja
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Publication of JP4466996B2 publication Critical patent/JP4466996B2/en
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Expired - Fee Related legal-status Critical Current

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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.

JP2004093396A 2004-03-26 2004-03-26 Sludge incineration equipment and sludge incineration method Expired - Fee Related JP4466996B2 (en)

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

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Family Applications (1)

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JP2004093396A Expired - Fee Related JP4466996B2 (en) 2004-03-26 2004-03-26 Sludge incineration equipment and sludge incineration method

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JP (1) JP4466996B2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
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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