济南大学毕业设计
摘
要
选题意义：
衡量水泥生产先进与否的标准主要有3个：即产品质量、能耗和环保，而其中能耗是目前各家水泥厂处于领先地位以及保持有效利润必须控制好的一项指标。选取日产5000t的水泥生产线煤磨车间立磨的工艺设计其目的就是更加深刻的熟悉立磨的工作原理，从而全面了解立磨在工作过程中出现的问题，以及解决问题的办法，最终达到节约煤粉制备过程消耗的能量，使水泥厂的利润得到有效提高。
立磨的优点：
1. 由于它是垂直的结构，只需要占用很小的场地面积。 2. 由于结构紧凑，只需要很小的空间。
3. 立式辊磨运行噪音低，其主要的噪音源自棍磨工作、传动马达、减速机系统、密封风机。
4. 能够喂入较粗的物料，物料粒径大约为磨辊平均直径的5%~8%，可节省预破碎能量消耗。
5. 金属的磨损量很低，大约比管磨机低25%，同时更换磨辊轮胎的时间非常短，因此只要很低的维修费用。
6. 在一台机器中同时粉磨、均化、烘干、选粉和输送物料。
7. 在粉磨和选粉空间中，粗粉能再循环，使之在粉磨/选粉过程中具有非常高的烘干效率。
8. 立式辊磨具有很高的运转率，在水泥工业生产中是一窑配一磨，可得到最高的投资效益。 设计原则：
本次毕业设计的题目为5000t/d水泥熟料生产线煤磨系统工艺设计。在设计中本着节约资源、降低成本、减少污染、提高效率的原则，顺应新型干法生产线建设规模向大型化发展的趋势，参考近年来大型水泥厂的设计原则、设计参数和设备规格，吸取他们设计的成功经验，采用他们的设计优点，使用一些新设备，如在石灰石预均化方面采用投资省的漏天矩形预均化堆场；在生料粉磨车间采用产量大、能耗低的辊式磨；在水泥粉磨车间采用粉磨能力大的辊压机+管磨系统。
关键词：煤磨；收尘器；物料平衡
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济南大学毕业设计
ABSTRACT
Topics meaning：
There are three main standards to measure Cement production is advanced or not.It is Product quality ,Energy Consumption ,Environmental Protection . Which is the energy consumption of various plant in a leading position and to maintain effective control of profits a good indicator . The Objection to Selection 5000t/d of cement production lines grinding raw materials coal mill Workshop Process Design is More deeply familiar with the work of the vertical mill Principle,Thus a comprehensive understanding of coal mill in the process of emerging issues and The solution to the problem , Ultimately achieve savings raw material grinding process of the energy consumption ，enable the plant to be effective in improving profit.
the major advantages of Vertical mill:
1. Because it is perpendicular to the structure, occupied only a small area. 2. Because of its compact structure, need very little space.
3. Low noise operation, The main grinding noise from the club, drive motors, drive system, a closed fan.
4. To feed thicker materials ,the Material particle size is averagly 5% ~ 8% of the approximately Roller average diameter.
5. low Metal wear , Possession of less than 25% lower mill; Roller replacement tires very short period of time,Hence, Require low maintenance costs.
6. In a machine grinding the same time, both, drying, separator and transportation of materials.
7. In the grinding and separator materials space, Classifier longer cycle , Bring it grinding / separator process with a very high efficiency of drying
8. Roller mill has high operating rates , Production in the cement industry is a kiln assigned
a mill , get the highest returns on investment .
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济南大学毕业设计
The graduation design on the topic of 5000 t / d coal production line of raw material grinding process design workshop . In the design, According to the conservation of resources and lower costs, reduce pollution and improve efficiency principles, NSP conform to the production line to build large-scale development of the trend , Reference design principles, design parameters and equipment specifications of Large Cement Plant in recent years. learn the successful experience of design, used the design advantages, Use some new equipment,For example, in Pre-both of Limestone, Using less investment in the province are expected rectangle of the yard. In raw material grinding shop , Using output, and low consumption of the Roller Mill; In cement grinding shop , Using a grinding capacity of roller press + tube mill system. The Objection of design:
This design Will be since four years of the University of knowledge and production with the practice of one drill , It makes me initially grasped the cement process in the whole design process ,and Initial awareness and understanding of the raw material grinding shop in the whole plant has played an important role.the Significance of this design is not only design of a production line and raw material grinding shop by myself ,but Work toward an important practical intergovernmental process. I will make a good theoretical knowledge and practice of combining production. It will play an important role in my future study and work.
Key words: coal mill; dust-precipitator; material balance
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济南大学毕业设计
目 录
摘 要 .................................................................................................................... I ABSTRACT ............................................................................................................. II 1绪 论 ...................................................................................................................... 1 2 建厂条件 ............................................................................................................... 2
2.1原始资料数据 ............................................................................................. 2
2.1.1原、燃料的化学组成 ...................................................................... 2 2..1.2 原、燃料水分 ................................................................................ 2 2.1.3 烟煤的工业数据分析 ..................................................................... 2 2.2 建厂条件 .................................................................................................... 2
2.2.1 建厂地点及自然条件 ..................................................................... 2 2.2.2主要建厂条件： .............................................................................. 3
3 工艺平衡计算 ....................................................................................................... 4
3.1 配料计算 .................................................................................................... 4
3.1.1煤灰掺入量 ...................................................................................... 4 3.1.2选择熟料率值 .................................................................................. 5 3.2 全厂物料平衡 ............................................................................................ 7
3.2.1确定窑的产量 .................................................................................. 7 3.2.2 计算窑的台数 ............................................................................... 10 3.2.3 烧成系统的生产能力 ................................................................... 10 3.2.4 水泥的生产能力 ........................................................................... 10 3.3 原、燃料消耗定额计算 .......................................................................... 10
3.3.1原料消耗定额 ................................................................................ 11 3.3.2 各种原料的消耗定额 ................................................................... 11
4 工艺设备选型与计算 ......................................................................................... 16
4.1全厂主机平衡计算 ................................................................................... 16
4.1.1 相关车间主机年利用率设定及工作班制安排 ........................... 16 4.1.2 主机选型 ....................................................................................... 16 4.2堆场与储库计算选型 ............................................................................... 22
4.2.1堆场（棚）的选型设计 ................................................................ 22 4.2.2储库的选型计算 ............................................................................ 26 4.3 全厂生产工艺流程 .................................................................................. 29
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济南大学毕业设计
5.重点车间——煤粉制备车间工艺设计计算 ...................................................... 31
5.1 设计内容简介 .......................................................................................... 31 5.2 计算条件和依据 ...................................................................................... 31
5.2.1用煤量计算 .................................................................................... 31 5.2.2 磨机系统确定 ............................................................................... 31 5.3煤粉制备车间热工计算 ........................................................................... 32
5.3.1计算辊式磨气体量和热平衡的基本条件 .................................... 32 5.3.2热平衡计算 .................................................................................... 32 5.4储煤仓和计量设备的选择 ....................................................................... 35
5.4.1储煤仓的选择 ................................................................................ 35 5.5附属设备选型 ........................................................................................... 36
5.5.1收尘设备选型 ................................................................................ 36 5.5.2输送设备选型 ................................................................................ 37 5.6 车间质量控制制度 .................................................................................. 39 5.7 车间工作制度及劳动定额 ...................................................................... 39
5.7.1车间工作制度 ................................................................................ 39 5.8重点车间工艺流程 ................................................................................... 39 6总平面布置图说明 .............................................................................................. 41
6.1总平面布置的设计程序 ........................................................................... 41 6.2总平面布置的基本原则： ....................................................................... 41 7主要工艺设备表 .................................................................................................. 43 结 论 ................................................................................................................. 49 参 考 资 料 ........................................................................................................... 50 致 谢 ................................................................................................................. 51
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日产T水泥熟料生产线煤磨系统工艺设计
