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如何計算帶式環(huán)保壓濾機的功率處理能力

本文來源 : 西咸新區(qū)漢格環(huán)??萍加邢薰?/i> 發(fā)布時間 : 2018-03-19 09:11

  帶式濃縮壓濾機(以下簡稱帶式壓濾機)是依據(jù)化學絮凝接觸過濾和機械擠壓原理而制成的高效固液分離設備,因其具有工藝流程簡單、自動化程度高、運行連續(xù)、控制操作簡便和工作過程可調節(jié)等一系列優(yōu)點,并且省卻了污泥濃縮池、在一定程度上節(jié)省了建設資金,正得到越來越廣泛的應用。
 
  經絮凝的污泥首先進入重力脫水區(qū),大部分游離水在重力作用下通過濾帶被濾除;隨著濾帶的運行,污泥進入由兩條濾帶組成的楔形區(qū),兩條濾帶對污泥實施緩慢加壓,污泥逐漸增稠,流動性降低,過渡到壓榨區(qū);在壓榨區(qū),污泥受到遞增的擠壓力和兩條濾帶上下位置交替變化所產生的剪切力的作用,大部分殘存于污泥中的游離水和間隙水被濾除,污泥成為含水率較低的片狀濾餅;上下濾帶經卸料輥分離,憑借濾帶曲率的變化并利用刮刀將濾餅刮落,實現(xiàn)物料的固液分離,而上、下濾帶經沖洗后重新使用,進行下一周期的濃縮壓濾。
 
  帶式壓濾機在實際工程應用中所涉及的主要技術經濟指標有:
 
 ?、偬幚砟芰?/div>
 
  ②泥餅含水率
 
 ?、刍瘜W藥劑投加量
 
 ?、軇恿ο?/div>
 
 ?、輿_洗水耗量
 
 ?、迬埩?/div>
 
 ?、哂行?/div>
 
 ?、酁V帶運行速度
 
  ⑨氣源壓力
 
  其中處理能力是評價帶式壓濾機綜合性能的首要指標。影響帶式壓濾機處理能力的因素很多,但主要體現(xiàn)在重力脫水區(qū)、壓榨區(qū)及其濾帶運行速度、濾帶張力、輥徑(大小、包角和中心距)、濾帶(透氣量)選擇、加藥調理效果等方面,也是帶式壓濾機結構設計、生產制造等質量的綜合體現(xiàn)。所以了解帶式壓濾機處理能力的計算方法對帶式壓濾機的優(yōu)化設計、運行參數(shù)的選擇、合理投加藥劑量等選擇具有一定的指導意義。

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