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重慶科技學(xué)院課程設(shè)計 I 重慶科技學(xué)院 《冶金工程設(shè)計》 課程設(shè)計報告 學(xué) 院 : 冶金與材料工程 專業(yè) 班級 : 學(xué)生姓名 : 學(xué) 號 : 設(shè)計地點(單位) ______ 重慶科技學(xué)院 __ 設(shè)計題目 :_____年產(chǎn) 萬噸濕法煉鋅廠焙燒車間設(shè)計 _______ 完成日期: 2021 年 12 月 30 日 指導(dǎo) 教師評語 : ______________________ _________________________________________________________________________________________________________________________________________________________________________________________________________ 成績(五級記分制) :______ __________ 指導(dǎo)教師(簽字) :________ _______ 重慶科技學(xué)院課程設(shè)計 II 摘要 本文是年產(chǎn) 。通過查閱相關(guān)的文獻,本設(shè)計首先對鋅的性質(zhì),用途,及當(dāng)前生產(chǎn)和消費進行了介紹。在簡單介紹了一些背景知識的前提下,本文對廠址進行了選擇,鑒于鋅冶金的生產(chǎn)工藝多樣,本文對各種工藝流程進行了分析比較,并確定選用硫酸化焙燒 浸出 凈化 電積這一濕法煉鋅工藝,在確定了工藝之后,本文又進一步對確定并對比論證了實際生產(chǎn)的工藝條件和經(jīng)濟技術(shù)指標(biāo),并進行了 冶金計算,根據(jù)計算結(jié)果來進行沸騰爐尺寸的計算,最后本文對工業(yè)“三廢”的處理也進行了相應(yīng)的說明。本文可分為四大部分,第一部分為背景知識介紹,第二部分內(nèi)容對廠址,工藝,及生產(chǎn)參數(shù)進行了選擇。第三部分為冶金計算與爐體設(shè)計。第四部分為工廠附屬設(shè)備及“三廢“處理。 關(guān)鍵詞 : 工廠設(shè)計 濕法煉鋅 焙燒 魯奇型焙燒爐 重慶科技學(xué)院課程設(shè)計 III Abstract The paper is the design instruction book of roasting plant of hydrometallurgical factorywhich produces 950,000,000t zinc ingots per access to appropriate literature, First of all, the design manualthe introduced thenature of the zinc, uses, and the current production and consumption 。 After a brief introduction ofsome background knowledge of the premise, this paper carried out on site selection, In view of zinc metallurgy production process varied, In this paper, a variety of processes are analyzed andpared ,And determine the selection of sulfation roasting leaching purification Electrowinning Process。 After the process in determining, This article has identified and demonstrated the Process conditions, Economic and technological indicators of this process。 Andmetallurgical calculation, according to calculation results to calculate the size of fluidized bedboiler。 At last, this article on industrial three wastes also had to deal with the description of of this article can be divided into five,The first part is to introduce fourth part is the choice of ancillary equipment in the factory and the threewastes to deal second part of the contents chosen the site, technology,and III is divided into metallurgical calculation and the furnace design. Key words : Plant design; Zinc hydrometallurgy; Roasting; Lurgi fluidized bed roasting furnace 重慶科技學(xué)院課程設(shè)計 IV 目錄 1 緒論 .................................................................... 1 性質(zhì)和應(yīng)用前景 ................................................. 1 鋅的性質(zhì) ..................................................... 1 鋅的用途及前景 ............................................... 1 ..................................................... 2 鋅的原料 ..................................................... 2 世界鉛鋅礦資源的分布特征 ..................................... 2 我國氧化鋅資源分布情況 ....................................... 2 鋅的消費 .......................................................... 2 2 工藝流程的選 擇與論證 ................................................... 4 ......................................................... 4 火法煉鋅及其優(yōu)缺點 ........................................... 4 濕法煉鋅及其優(yōu)缺點 ........................................... 4 流程的選擇論證 ....................................... 4 ........................................... 5 焙燒的目的與要求 ............................................. 5 焙燒設(shè)備的選擇 ............................................... 6 選擇 ..................................................... 7 配料 ......................................................... 7 干燥 ......................................................... 8 加料方式 ..................................................... 8 排料方式 ..................................................... 8 煙氣處理 ..................................................... 8 3 技術(shù)條件與經(jīng)濟指標(biāo)(焙燒) .............................................. 9 ................................................... 9 鼓風(fēng)量與鼓風(fēng)壓力及空氣過剩系數(shù) ............................... 9 焙燒溫度 ..................................................... 9 空氣速度與空氣過剩系數(shù) ...................................... 10 技術(shù)經(jīng)濟指標(biāo)選擇 ................................................. 11 焙燒爐床能率(又稱焙燒 強度) ................................ 11 鋅精礦焙燒脫硫率 ............................................ 11 焙砂產(chǎn)出率和煙塵率 .......................................... 11 鋅的回收率 .................................................. 11 .............................................. 12 爐子開動周期 ................................................ 12 3 冶金計算 .............................................................. 13 .......................................... 13 鋅精礦物組成計算 ............................................ 13 .................................. 15 .................................. 18 重慶科技學(xué)院課程設(shè)計 V 焙燒要求的空氣量及產(chǎn)出煙氣量與組成的計算 ......................... 21 流態(tài)化焙燒物料平衡 ............................................... 22 熱平衡計算 ....................................................... 23 熱收入 ...................................................... 23 熱支出 ...................................................... 25 5 沸騰焙燒爐設(shè)計 ......................................................... 28 已知條件 ......................................................... 28 爐料的物理化學(xué)性質(zhì) .......................................... 28 .......................................................... 28 ...................................................... 28 操作氣流速度和床能率 ........