摘 要本课题以10万吨年产量的锌精矿沸腾焙烧车间为研究对象，对锌冶金中的精矿沸腾焙烧工艺、主体设备及车间组成进行设计。首先进行技术条件及技术经济指标的选择，为冶金计算过程打下基础。接着，结合工厂生产实践调研以及文献数据查询确定锌精矿的组成并以100kg锌精矿为计算标准，得出沸腾焙烧过程中的烟尘产出率为45。31%，焙砂产出率为54。69%，并计算分析他们的物相组成。另外对空气量、烟气量及其物相组成进行计算。随后，总结沸腾焙烧的物料平衡、热平衡，并得出本次设计的主要经济技术指标脱硫率为94。83%，锌精矿烧成率为85。76%，可溶锌率为93。82%。87389

在完成冶金计算和技术经济指标的基础之上，进行主体设备尺寸的计算，设计出炉床面积为108m3的鲁奇式锌精矿沸腾焙烧炉，并对相关的辅助设备进行选择计算。最后对车间配置和工艺流程进行设计，绘制主体设备图、工艺流程图以及车间配置图。

毕业论文关键词：沸腾焙烧；锌精矿；焙砂；物相组成

Abstract This topic takes the 100 thousand ton zinc concentrate roasting workshop as the research object, and designs the process, main equipment and the composition of the main equipment and the workshop。 First of all, choose the technical conditions and the technical and economic indicators to lay the foundation for the metallurgical process。 Then, combined with the production practice research and literature data query determine the composition of zinc concentrate and to 100kg zinc concentrate for the calculation of the standard, it is concluded that the output of soot in the process of roasting rate for 45。31% and calcine output rate was 54。69%, and the analysis and calculation of the phase composition of their boiling。 In addition, the amount of air, smoke and phase composition were calculated。 Then, the material balance and heat balance were summarized, and the main economic and technical indexes of this design were 94。83%。 The sintering rate of zinc concentrate was 85。76%, and the soluble zinc ratio was 93。82%。

The calculation of the size of the main equipment in metallurgical calculation and technical and economic indexes based on design released bed area of 108m3 Lurgi type zinc concentrate roaster, and the auxiliary equipment selection and calculation of。 At last, the plant configuration and process flow are designed, and the main equipment diagram, flow chart and shop floor plan are drawn。

Key words: Boiling roasting; zinc concentrate; calcine; phase composition

目 录

第一章 绪论 1

1。1 引言 1

1。2国内外锌精矿沸腾焙烧技术发展 2

1。3锌精矿沸腾焙烧主体设备概述 4

1。3。1 道尔沸腾焙烧炉 4来-自+优=尔;论.文:网www.youerw.com +QQ7520.18766

1。3。2 鲁奇炉 5

l。3。3 锌精矿沸腾焙烧的炉型及其结构特点 6

1。4 锌精矿沸腾焙烧车间工艺研究现状及未来的方向 7

1。4。1 锌精矿沸腾焙烧工艺研究现状 7

1。4。2 焙烧工艺改进及未来发展方向 8

1。5 本课题研究的意义及目的 8

第二章 技术条件及技术经济指标的选择 9

2。1 技术条件 9

2。1。1 焙烧温度 9

2。1。2 过剩空气系数