论文总字数：32592字

摘 要

本设计任务是设计一座年产260万吨Q295钢的转炉炼钢车间，重点对转炉供料和上料系统及设备选型做详细的说明，并绘制转炉原料系统剖面图。前期主要根据炼钢厂年产量确定金属平衡图，对比初始钢水和目标钢种成分含量进行物料平衡和热平衡计算，后期根据计算数据进行转炉炉型设计、原料车间设计、氧枪设计、连铸设备的选型及计算，最后对炼钢操作制度和工艺制度也进行了说明。

转炉公称容量选取120t，每炉平均冶炼时间为35min，转炉作业率为96%，连铸坯的收得率为96%。转炉冶炼原料为铁水、废钢、散状料和铁合金，散状料供应选用高位料仓部分共用的方式，铁合金通过中位料仓供应。车间厂房长160m，高48m，宽100m。本车间的浇注方式为全连铸，车间的最终产品为板坯。

关键词：炼钢 物料平衡 原料系统 料仓 连铸

With an annual output of 260 million tons of steel continuous casting converter workshop - the focus of material system

Abstract

The design task is to design a annual output of 260 million tons Q295 steel converter steelmaking workshop, focusing on converter feeding and feeding system and doing detailed description on equipment selection, and draw the profile of the converter material system. Pre main according to the yield of steelmaking plant got metal equilibrium diagram, contrast to the initial molten steel and steel composition content for material balance and heat balance calculation of late calculations based on data converter furnace design, raw material workshop design, design of oxygen lance, selection and calculation of continuous casting equipment. Finally, the steelmaking operation system and the technology system is also described in the design.

Selection of 120t converter nominal capacity, average per furnace smelting time is 35min, converter operating rate was 96%, continuous casting billet received rate is 96%. The converter smelting of raw materials for molten iron, scrap steel, powder like material and iron alloy, bulk material supply use shared part of the overhead bin, iron alloy, through a bunker supply. The workshop is 160m long, 48m high, and 100m wide. The casting method is the whole continuous casting, the final product of the workshop is slabs.

Keywords: steelmaking; material balance; raw material system; bunker; continuous casting

目录

摘要------------------------------------------------------------------------------------------------I

Abstract------------------------------------------------------------------------------------------II

绪论------------------------------------------------------------------------------------------------1

1.设计概述----------------------------------------------------------6

1.1设计依据-------------------------------------------------------6

1.2设计原则和指导思想---------------------------------------------6

2.产品方案及金属平衡------------------------------------------------7

2.1产品方案-------------------------------------------------------7

2.2金属平衡-------------------------------------------------------7

2.3转炉容量的确定-------------------------------------------------8

3.物料平衡及热平衡计算---------------------------------------------10

3.1原始数据------------------------------------------------------10

3.2物料平衡计算--------------------------------------------------12

3.3热平衡计算----------------------------------------------------20

3.4加入废钢和脱氧剂后的物料平衡----------------------------------23

4.转炉炉型设计及转炉设备-------------------------------------------29

4.1转炉相关生产数据----------------------------------------------29

4.2转炉炉型设计--------------------------------------------------29

4.3转炉炉型参数--------------------------------------------------34

5.转炉车间原材料的供应及设备---------------------------------------35

5.1铁水供应------------------------------------------------------35

5.2废钢供应------------------------------------------------------35

5.3散状料供应----------------------------------------------------37

5.4铁合金供应----------------------------------------------------39

6.转炉供氧及氧枪设计-----------------------------------------------------------------------41

6.1供氧设备---------------------------------------------------------------------------------41

6.2氧枪设计---------------------------------------------------------------------------------41

6.3氧枪技术性能参数---------------------------------------------------------------------46

7.连铸车间--------------------------------------------------------------------------------------48

7.1连铸系统的组成及工艺流程---------------------------------------------------------48

7.2浇注跨的工艺布置---------------------------------------------------------------------48

7.3连铸机选型和铸坯断面---------------------------------------------------------------48

7.4连铸机主要工艺参数------------------------------------------------------------------49

7.5连铸机生产能力的确定---------------------------------------------------------------51

8.冶炼车间组成及车间布置-----------------------------------------------------------------53

8.1冶炼车间的组成和厂房的布置形式------------------------------------------------53

8.2冶炼车间主厂房的工艺布置---------------------------------------------------------53

结束语-------------------------------------------------------------------------------------------57

参考文献----------------------------------------------------------------------------------------58

绪论

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