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汙泥回流泵的作用

發表時間：2025-06-23

汙泥回流泵在汙水處理系統中承擔核心流體輸送功能，其主要作用可歸納如下：

一、核心工藝循環作用

?活性汙泥循環?
將沈澱池底部的活性汙泥持續輸送回曝氣池，維持微生物濃度平衡，保障生化反應效率15。
?混合液回流脫氮?
實現硝化液從好氧區至缺氧區的定向轉移，爲反硝化菌提供硝態氮，強化生物脫氮效果13。

二、關鍵物料輸送特性

?大流量低揚程輸送?
適應微揚程（0.5-10米）、大流量工況，高效輸送含固率≤4%的汙泥混合液15。
?高適應性介質處理?
特殊葉輪設計兼顧自潔與防纏繞能力，可穩定輸送含纖維、固體顆粒的腐蝕性介質（PH值3-12）12。

三、系統適配特性

?靈活安裝方式?
支持穿牆式安裝與自動耦合系統，適配圓形/方形池體結構，簡化水下維護流程15。
?長周期穩定運行?
雙機械密封與進口軸承設計，保障連續運行≥10000小時，設備壽命可達15年12。

四、延伸應用場景

除核心汙水處理功能外，亦適用于：

地面雨水淨化回抽與灌溉系統35
工業冷卻水循環及化工廢料輸送24
河道治理中的水體循環活化36

汙泥回流泵通過精准的流體動力學設計與耐腐蝕結構，成爲汙水廠脫氮除磷工藝鏈的核心輸送設備，其效能直接影響系統處理能力與運行成本

上一篇：離心曝氣機和射流曝氣機的區別下一篇：刮泥機的種類

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