辽宁科技大学本科生毕业设计（论文） I
400万吨冷轧板带钢车间设计
摘要
本次设计是参考宝钢冷轧厂2030生产线设计而成，年产量为400万吨，典型产品为Q345冷轧薄板带钢，产品规格1.2?1280mm。主要设备机组包括连续酸洗——五机架连轧机组、罩式退火炉机组、单机架四辊平整机组、连续式退火炉机组、连续式热镀锌机组、连续电镀锌机组、涂层机组、剪切机组和重卷包装机组。设计阐述了冷轧带钢的生产工艺特点、应用、发展状况并简要介绍冷轧薄板带钢的生产工艺流程，进而设计出以Q345为代表的冷轧产品、特深冲产品、热镀锌产品、电镀锌产品和涂层产品。根据年产能力制定了轧制制度，计算了轧制力，对轧辊强度，电机能力，车间年产量进行了校核。同时还介绍了各项经济技术指标。最后论述了冷轧能耗数学模型以及数学模型在轧钢生产中的应用等方面的内容。
关键词：冷轧带钢；轧制工艺；轧制制度；校核；冷轧能耗模型
辽宁科技大学本科生毕业设计（论文） II
Workshop design for a cold-rolled strip plant
with an annual yield of 4 million tons
ABSTRACT
Referring to Baosteel 2030mm workshop, a plant for typical product of Q345, 1.2?1280mm with annual yield of 4 million tons was designed. Major facilities include continuous acidwashing and five frame continuous rolling crew, hood-type annealing furnace, single frame skin rolling unit with four rolls, continuous annealing furnace, continuous hot galvanizing unit, coating unit, shearing unit, rewinding and packing unit. The design described processing features, application, development of the cold-rolled strip steel, and briefly introduced production technology, designed cold-rolled products, super deep punched products, hot galvanized products, electrogalvanized products, and coated products. According to the producing capacity, rolling schedule was determined, rolling force was calculated, the roll strength, motor capacity, and the annual yield of the workshop were checked, and the economic and technical norms were introduced. At the end, the typical energy-consumption math models for cold rolling and their application in steeling rolling were described.
Key words: Cold-rolled steel strip; Rolling process; Rolling system; check; Cold-rolled
consumption model
辽宁科技大学本科生毕业设计（论文） III
目 录
摘要 ............................................................................................................................................ I ABSTRACT........................................................................................................................... II 目 录 .................................................................................................................................... III 1 文献综述 ............................................................................................................................. 1
1.1冷轧带钢产品的发展、应用及地位 .............................................................................. 1 1.2 冷轧薄板带钢生产工艺特点 .......................................................................................... 1 1.2.1加工温度低，在轧制中将产生不同程度的加工硬化 ............................................ 1 1.2.2冷轧中要采用工艺冷却和润滑（工艺冷润） ........................................................ 1 1.2.3冷轧中要采用张力轧制 ............................................................................................ 1 1.3 冷轧生产工艺流程 .......................................................................................................... 1 1.3.1 酸洗 ........................................................................................................................... 1 1.3.2 轧制 ........................................................................................................................... 1 1.3.3 精整 ........................................................................................................................... 1 1.3.4 镀锌 ........................................................................................................................... 1 1.3.5 矫直 ........................................................................................................................... 1 1.3.6 板带钢轧制制度的确定 ........................................................................................... 1 1.4 冷轧薄钢板生产的发展历史 .......................................................................................... 1 1.4.1 国际冷轧发展史 ....................................................................................................... 1 1.4.2 我国冷轧发展史 ....................................................................................................... 1 1.5 当今现代轧制工艺技术的特点 ...................................................................................... 1 1.5.1大力开发高精度轧制技术 ........................................................................................ 1 1.5.2轧制过程连续化的新进展——无头轧制技术 ........................................................ 1 1.5.3轧制过程的自动控制和智能控制技术 .................................................................... 1 1.5.4深加工技术 ................................................................................................................ 1 1.6 几种冷轧薄板带钢轧机设备介绍 .................................................................................. 1 1.6.1 二辊轧机 ................................................................................................................... 1 1.6.2 四辊式冷轧机 ........................................................................................................... 1 1.6.3 MKW型轧机 ............................................................................................................. 1 1.6.4 二十辊冷轧机 ........................................................................................................... 2 1.6.5 特种结构的轧机 ....................................................................................................... 2
2 产品方案和金属平衡表的制定 ................................................................................... 2
2.1 原料及技术要求 .............................................................................................................. 2
辽宁科技大学本科生毕业设计（论文） IV
2.1.1 原料规格 ................................................................................................................... 2 2.1.2 原料种类 ................................................................................................................... 3 2.1.3 原料技术要求 ........................................................................................................... 3 2.2 产品方案 .......................................................................................................................... 4 2.2.1 冷轧板卷 ................................................................................................................... 5 2.2.2 特深冲板卷 ............................................................................................................... 5 2.2.3 热镀锌板卷 ............................................................................................................... 5 2.2.4 电镀锌板卷 ............................................................................................................... 6 2.2.5涂层产品 .................................................................................................................... 6 2.3 产品方案表 ...................................................................................................................... 6 2.3.1 冷轧带钢规格数量分配 (总产量240万吨) .......................................................... 7 2.3.2 特深冲带钢规格数量分配(总产量60万吨) .......................................................... 7 2.3.3 热镀锌带钢规格数量分配(总产量40万吨) .......................................................... 8 2.3.4 电镀锌带钢规格数量分配(总产量32万吨) .......................................................... 8 2.3.5 涂层带钢规格数量分配(总产量28万吨) .............................................................. 8
3 轧制工艺流程及轧制制度的制定 .............................................................................. 9
3.1 轧制工艺流程图 .............................................................................................................. 9 3.2 各部分工艺流程 .............................................................................................................. 9 3.2.1 带钢连续加工处理机组 ......................................................................................... 10 3.2.2 酸洗-冷轧联合机组 ................................................................................................ 10 3.2.3 单垛式紧卷罩式退火机组 ..................................................................................... 12 3.2.4 连续热镀锌机组 ..................................................................................................... 12 3.2.5 连续电镀锌机组 ..................................................................................................... 13 3.2.6 涂层机组 ................................................................................................................. 14 3.2.7 薄板横剪机组和包装机组 ..................................................................................... 15 3.2.8 连续辊压成形机组（备选） ................................................................................. 16 3.3轧制制度的制定 ............................................................................................................ 16 3.3.1 压下规程的制定 ..................................................................................................... 16 3.3.2 计算各道轧制压下的步骤说明 ............................................................................. 16 3.3.3 轧制速度制定 ......................................................................................................... 22 3.3.4 辊型制度 ................................................................................................................. 22
4 设备的选择 ...................................................................................................................... 24
4.1 酸洗——冷轧联合机组 ................................................................................................ 24
辽宁科技大学本科生毕业设计（论文） V
4.2 罩式退火机组 ................................................................................................................ 26 4.3 单机架四辊平整机组 .................................................................................................... 28 4.4 连续热镀锌机组 ............................................................................................................ 30 4.5 连续电镀锌机组 ............................................................................................................ 32 4.6 涂层机组 ........................................................................................................................ 33 4.7 剪切机组 ........................................................................................................................ 36 4.8 重卷机组 ........................................................................................................................ 37
5 轧机生产能力校核 ........................................................................................................ 38
5.1 轧辊强度校核 ................................................................................................................ 38 5.1.1 轧辊各部分尺寸的确定 ......................................................................................... 38 5.1.2 轧辊强度校核 ......................................................................................................... 39 5.2轧机生产能力校核 ........................................................................................................ 42 5.2.1 轧机工作图表 ......................................................................................................... 42 5.2.2 轧机年生产能力校核 ............................................................................................. 43 5.2.3 轧机平均小时产量 ................................................................................................. 44 5.2.4 车间年产量计算 ..................................................................................................... 45 5.3 电机功率校核 ................................................................................................................ 46 5.4 咬入角校核 .................................................................................................................... 46
6车间平面布置 .................................................................................................................. 48
6.1 仓库面积计算 ................................................................................................................ 48 6.1.1 原料仓库面积 ....................................................................................................... 48 6.1.2 中间仓库面积 ....................................................................................................... 49 6.1.3 成品仓库面积 ....................................................................................................... 49 6.1.4 其它面积 ............................................................................................................... 50 6.2 设备间距确定 ................................................................................................................ 50 6.2.1 轧机机列间的距离 ............................................................................................... 50 6.2.2 轧机到切断设备的距离 ....................................................................................... 50 6.3 车间跨距组成 ................................................................................................................ 50
7 各项经济指标 ................................................................................................................. 51
7.1概述 ................................................................................................................................ 51 7.2各项经济技术指标的确定 ............................................................................................ 51
结 束 语 ............................................................................................................................... 54 专题部分 ............................................................................................................................... 55 致 谢 .................................................................................................................................... 68
400万吨冷轧板带钢车间设计
