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main products, but also gives the associated processing and storage of asphalt asphalt smoke,
comprehensive description of the design of the whole system content.
After a review of relevant literature through the understanding of the development process
related to tar processing industry, based on domestic and international developments, trends, on
the basis of coal tar processing technology. Finally, according to the design requirements
needed to design, select the application of increasingly sophisticated domestic tar distillation -
atmospheric two tar distillation tower.
The first part describes the characteristics of coal tar and the meaning of tar processing, by
contrast the tar processing industry at home and abroad as well as the process of historical
overview, describing the development trend of tar processing industry and problems.
The second part of the design is the main body of the device, mainly for tube furnaces, ends
column and other important equipment material balance, energy balance and specific
geometries’ calculated and plotted. Evaporation equipment and anthracene towers correlation
calculation is also conducted. Give calculation and selection to the anthracene tower, ends
column, condensing cooler and other equipment.
The third part is to explore the topic of bitumen processing byproducts, discussing the
current cooling process bitumen in detail, made the most suitable design of the asphalt products
based on market conditions and related research at the same time.
The fourth part is conducted briefly to the part of the non-craft and calculated based on the
data and related information, and complete the process flow diagram, workshops layout and
major equipment drawing graph.
Keywords: Coal tar; Tar distillation; Distillation tower; Asphalt
目 录
1 绪论1
1.1 课题的意义1
1.2 煤焦油简介1
1.3 课题的目标及任务内容2
2 工艺流程和背景论述3
2.1 我国焦油加工业历史及现状3
2.2 国外焦油加工业的发展趋势3
2.3 我国焦油加工业存在的问题4
2.4 焦油车间的相关工艺比较5
2.4.1 常压焦油蒸馏工艺5
2.4.2 减压焦油蒸馏工艺8
2.4.3 常减压焦油蒸馏工艺8
2.4.4 其他焦油蒸馏工艺8
2.5 设计产品主要用途和应用领域9
3 工艺计算及设备选型9
3.1 设计方案选择9
3.2 方案可行性分析10
3.3 主要设备计算及选型10
3.3.1 管式炉10
3.3.2 一段蒸发器13
3.3.3 二段蒸发器14
3.3.4 蒽塔14
3.3.5 馏分塔15
3.3.6 一段轻油冷凝冷却器16
3.3.7 馏分塔轻油冷凝冷却器17
3.3.8 浸没式冷却器18
4 非工艺条件19
4.1 厂址的选择19
4.2 土建19
4.3 防火防爆19
4.3.1 选择适宜的输送设备19
4.3.2 控制和消除明火与摩擦、撞击火花20
4.3.3 安全装置20
4.3.4 焦化厂的防火防爆事项20
4.4 环境保护21
4.4.1 主要污染源和污染物分析21
4.4.2 三废处理21
4.5 劳动保护安全卫生22
4.5.1 主要危险源及防护措施22
4.5.2 防护措施22
4.5.3 工业卫生防护措施22
4.6 电力22
4.6.1 供电22
4.6.2 防触电22
4.7 给水排水23
4.8 经济预算24