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尿素脫硝作爲還原劑的十大好處

63

发表时间：2020-08-26 08:39

1.尿素溶液作爲脫硝還原劑的優點是幹淨衛生安全。

2.尿素溶液通常配制成10%的濃度，本項目中攪拌罐的容積爲5立方，放10袋50公斤的尿素即可。在鍋爐負荷比較大的情況可以配的濃度大一些。

3. 尿素可以采用農用尿素顆粒，選擇標准含氮量的優質尿素爲好。

4. 尿素非常容易吸水受潮板結，所以儲存的時候要放在木托上並保持幹燥通風。

5. 尿素溶顆粒在溶解時大量吸熱，所以在配制尿素溶液時盡量使用熱水或者通入蒸汽，以免尿素溶液在低溫的情況下結晶堵塞管路或者噴槍。

6. 配制尿素溶液要采用軟化水或者除鹽水，防止結晶結垢堵塞噴嘴。

7. 要經常查看攪拌罐和儲存罐的液位，及時配制，防止轉運泵、輸送泵無水運轉。

8. 尿素转运泵在抽完搅拌罐的溶液后，要在搅拌罐里加适量清水继续抽到储存罐里，目的是清洗一下转运泵，防止尿素在泵的机封里结晶。

9. 轉運泵不出水的原因主要是泵內有空氣，需要打開放氣孔，讓溶液充滿泵即可。

10. 過濾器要經常打開清洗一下過濾網。尿素顆粒有雜質，尿素袋子裏的合格證紙片和編織袋塑料皮、密封線要注意取出，防止堵塞過濾器。

上一篇水膜脫硫除塵塔有一定脫硝功能

下一篇天然氣窯爐除塵脫硝系統的設計建設路線

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