【正文】 ................................................................................................................53 供氧制度 .....................................................................................................................................54 供氧制度主要工藝參數(shù)。此次的設計任務更加鞏固了我所學的專業(yè)知識，與此同時也更加了解了轉爐煉鋼車間的各道工藝流程，為以后的工作打下了良好的基礎。本車間的澆注方式為全連鑄。本設計設有轉爐兩座，轉爐大小均為 150t，平均吹氧時間為 38min，純吹氧時間為 18min，轉爐作業(yè)率為 80%，轉爐的原料主要有鐵水、廢鋼以及其它一些輔助原料。1 / 105年產 330 萬噸全連鑄坯的轉爐煉鋼車間工藝設計專 業(yè)：冶金工程姓 名：朱江江指導老師：折媛摘要本設計的主要任務是設計一座年產 330 萬噸方坯的轉爐煉鋼車間。本設計從基礎的物料平衡和熱平衡計算開始，主要包括以下幾部分：轉爐爐型設計、氧槍設計、轉爐車間設計、連鑄設備的選型及計算、以及煉鋼操作制度和工藝制度，其中，轉爐煉鋼車間設計是本設計的重點與核心。連鑄坯的收得率為 98%，另外本車間爐外精煉主要采用了喂絲以及真空脫氣手段。車間的最終產品為方坯。關鍵詞：頂?shù)讖痛? 轉爐 煉鋼 車間 精煉 連鑄2 / 105AbstactThe main task of this design is designing a plant wich perduce million tons of steel per year. It is bee the foundation of the material and thermal calculation, mainly include the following parts: the bof model designing, oxygen lance designing, equipment selection and calculation of continuous caster ,besides,also including operating and process system of steelmaking ,the core of the design is plant layouting This design has two 150t converter for steelmaking, the average time of oxygen applying is 38min ,pure oxygen applying time is 18min, the efficient of the bof is 80% , scrap metal and other auxiliary materials. The rate of casting billet is 98%, in addition , refining mainly adopts wire feeding and vacuum deairing, The final product is billet.The design more strengthened my major knowledge, at the same time also understand more about the converter steelmaking of each process , laiding a good foundation for the work of future.Keywords: top and bottom bined blown converter steelmaking refining casting continuous casting3 / 105目錄1 緒 論 ....................................................................................................................................................7 轉爐冶煉原理簡介 [1] ....................................................................................................................7 氧氣轉爐煉鋼的特點 ...................................................................................................................8 設計原則和指導思想 ...................................................................................................................9 產品方案 .......................................................................................................................................92 氧氣轉爐煉鋼車間 ............................................................................................................................11 初始條件 .....................................................................................................................................11 公稱容量選擇 [2] ..........................................................................................................................11 轉爐座數(shù)的確定 .......................................................................................................................11 根據(jù)生產規(guī)模和產品方案計算出年需鋼水量。 ..................................................................................................54 氧槍操作 ..............................................................................................................................54 造渣制度 .....................................................................................................................................55 采用單雙渣操作 ..................................................................................................................56 各種渣料用量計算及加入 ..................................................................................................56 爐渣調整： ..........................................................................................................................57 溫度制度 .....................................................................................................................................57 溫度控制原則 ......................................................................................................................57 終點控制與出鋼 .........................................................................................................................59 脫氧合金化 .................................................................................................................................60 脫氧合金化操作 ..................................................................................................................60 影響合金元素吸收率的因素 .............................................................................................60 精煉與連鑄 .................................................................................................................................616 車間工藝布置 ....................................................................................................................................62 車間生產工藝流程圖 .................................................................................................................62 供應系統(tǒng) .....................................................................................................................................63 轉爐煙氣凈化與回收系統(tǒng) .........................................................................................................64 爐下出鋼出渣系統(tǒng) .....................................................................................................................657 冶煉車間組成及車間布置 ..............................................................................................................665 / 105 冶煉車間的組成和廠房的布置形式 .........................................................................................66 車間的組成 ..........................................................................................................................66 主廠房的工藝布置 .....................................................................................................................66 原料跨間的布