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當前位置:主頁 > 新聞中心 > 生物質(zhì)熱風爐的爐膛清理與結(jié)焦預防措施
生物質(zhì)熱風爐的爐膛清理與結(jié)焦預防措施
更新時間:2025-08-12 點擊次數(shù):51
  生物質(zhì)熱風爐的爐膛結(jié)焦是影響燃燒效率與設(shè)備壽命的常見問題,焦塊堆積會導致?lián)Q熱面積縮小、熱效率下降,嚴重時甚至引發(fā)爐膛堵塞??茖W的清理方法與預防措施是保障設(shè)備穩(wěn)定運行的關(guān)鍵。?
 
  爐膛清理需分周期采用針對性手段。日常清理可在每次停爐后進行:待爐膛溫度降至80℃以下,用專用耙子清除爐排表面的灰燼與細小焦塊,并用壓縮空氣(壓力0.4~0.6MPa)吹掃爐膛死角,避免殘留顆粒二次結(jié)焦。每周需進行深度清理:拆除觀火孔蓋板,用長柄鏟刀鏟除爐壁附著的焦層,對粘結(jié)緊密的硬焦可先噴灑除焦劑(主要成分為碳酸鈉與氟化鈉復配物),靜置2小時后再清理,能降低清理難度30%以上。每季度需清灰:打開爐膛檢修門,檢查換熱管表面積灰情況,用高壓水槍(壓力10~15MPa)沖洗,確保換熱效率恢復至初始狀態(tài)的90%以上。?
 
  結(jié)焦預防需從燃料、運行參數(shù)兩方面入手。燃料預處理是基礎(chǔ):生物質(zhì)燃料(如秸稈、木屑)的含水率需控制在15%~20%,過濕會導致燃燒不全;粒徑應均勻(2~5cm),避免大塊燃料堆積形成局部高溫。運行中需優(yōu)化燃燒參數(shù):爐膛溫度控制在800~1000℃,超過1100℃時易引發(fā)灰分熔融結(jié)焦;一次風量保持在總風量的60%~70%,確保燃料充分懸浮燃燒,減少爐排積料。對于高灰分燃料,可添加防焦添加劑(如氧化鎂粉末),按燃料量的0.5%比例混合,抑制灰分熔融。?
 
  設(shè)備維護細節(jié)同樣重要。爐排需每月檢查一次,確保間隙均勻(2~3mm),避免漏料導致的局部結(jié)焦;定期清理爐排傳動機構(gòu),保證運行順暢,防止卡澀造成的燃料堆積。爐膛耐火材料若出現(xiàn)裂紋,需及時用高溫耐火水泥修補,避免高溫煙氣竄流形成局部過熱。此外,建立運行臺賬,記錄每次燃料種類、燃燒溫度及結(jié)焦情況,通過數(shù)據(jù)分析優(yōu)化操作參數(shù),可使結(jié)焦頻率降低50%以上。?

 


 
  通過“定期清理+源頭預防”的組合措施,能有效控制生物質(zhì)熱風爐的結(jié)焦問題,維持熱效率穩(wěn)定在85%以上,延長設(shè)備使用壽命至8~10年。?

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