山东电力技术
山東電力技術
산동전력기술
SHANDONG ELECTRIC POWER
2010年
6期
62-65
,共4页
污泥干化%污泥焚烧%电站锅炉
汙泥榦化%汙泥焚燒%電站鍋爐
오니간화%오니분소%전참과로
sludge drying%sludge incinerate%power station boiler
污泥的干化焚烧是对城市污水处理厂产生的污泥进行无害化、减量化处置的较好方式,然而由于污泥所含水分难以去除、建设专用的焚烧锅炉投资大、低温焚烧易产生二恶英、存在二次污染等问题,使得污泥焚烧处置方式的推广受到影响,污泥处置的速度滞后,影响了污水处理事业的健康持续发展。通过选取恰当的烟气热源、选择简单适用的干化装置、设计合理的干化掺烧流程,利用燃煤电站锅炉的烟气余热对污泥进行干化后掺入煤中在锅炉进行焚烧,能够实现污泥干化过程的节能、污泥焚烧产热的资源化利用、高温焚烧清洁环保三重效益,为污泥处置开辟了一条新的途径。
汙泥的榦化焚燒是對城市汙水處理廠產生的汙泥進行無害化、減量化處置的較好方式,然而由于汙泥所含水分難以去除、建設專用的焚燒鍋爐投資大、低溫焚燒易產生二噁英、存在二次汙染等問題,使得汙泥焚燒處置方式的推廣受到影響,汙泥處置的速度滯後,影響瞭汙水處理事業的健康持續髮展。通過選取恰噹的煙氣熱源、選擇簡單適用的榦化裝置、設計閤理的榦化摻燒流程,利用燃煤電站鍋爐的煙氣餘熱對汙泥進行榦化後摻入煤中在鍋爐進行焚燒,能夠實現汙泥榦化過程的節能、汙泥焚燒產熱的資源化利用、高溫焚燒清潔環保三重效益,為汙泥處置開闢瞭一條新的途徑。
오니적간화분소시대성시오수처리엄산생적오니진행무해화、감양화처치적교호방식,연이유우오니소함수분난이거제、건설전용적분소과로투자대、저온분소역산생이악영、존재이차오염등문제,사득오니분소처치방식적추엄수도영향,오니처치적속도체후,영향료오수처리사업적건강지속발전。통과선취흡당적연기열원、선택간단괄용적간화장치、설계합리적간화참소류정,이용연매전참과로적연기여열대오니진행간화후참입매중재과로진행분소,능구실현오니간화과정적절능、오니분소산열적자원화이용、고온분소청길배보삼중효익,위오니처치개벽료일조신적도경。
Sludge drying and burning is a good method to realize the harmless and reducing treatment of the municipal sewage plant sludge.However,it is difficult to remove the water in the sludge and cost much to build a special incinerator,besides,low temperature incineration easily forms dioxin and secondary pollution.Thease all influence the development and application of the sludge buring,which leads to the delay of sludge treatment and influences the health and lasting development of wastewater treatment technology.In this paper,heat source with proper gas temperature,simple and applicable drying device,and reasonable drying process was designed to utilize the flue gas heat of the coal fired boiler in drying the sludge,which then incinerated in the boiler combined with coal.It gives a new approach to solve the sludge treatment problems,which realize the energy saving sludge drying process,resource utilization of sludge incineration heat,and environment-friendly high temperature incineration.
