论文总字数：21768字

摘 要

本文主要内容是关于粉体特性和WPJ-18型搅拌机的设计说明。首先，介绍了粉体技术的发展和粉体研究的目的。其次，是对粉体特性的介绍，包括颗粒粒径，颗粒形状因数，粒径分布，粉体的流变学，粒度的测定等方面，其次，是对WPJ-18X型搅拌机的计算与设计。搅拌使两种或多种不同的物质在彼此之中互相分散, 从而达到均匀混合的作用, 也可以用来加速传热和传导物质。WPJ-18型搅拌机的工作原理是物料先从进料漏斗进入圆筒，经由搅拌杆带动搅拌叶片进行混合搅拌，当物料达到一定的均匀度后，便从出料口排出。我的毕业设计就是对搅拌机的认识和研究，并设计出WPJ-18型搅拌机的总体结构，完成WPJ-18型搅拌机的相关计算。

关键字：粉体工程 粉体特性 搅拌机

Abstract

In this paper, the main content is about the powder characteristics and the design of the WPJ - 18 type mixer. First of all, introduces the development of the technology of powder and powder research purposes.Second, is the introduction to the characteristics of the powders, including particle size, particle shape factor, the particle size distribution of powders of rheology, the determination of particle size, etc., and second, is the WPJ - 18 x type mixer calculation and design. Stir to make two or more different materials scattered among each other each other, so as to achieve the effect of mixing, can also be used to accelerate the heat transfer and conductive material. WPJ - 18 type mixer works is the material from feeding funnel into the first cylinder, through mixing, stirring rod drives the stirring blade mixed after the material reaches a certain uniformity, from discharging mouth eduction. My graduation design is for the understanding and research of mixer, and designed the overall structure of the WPJ - 18 type mixer, complete WPJ - 18 type mixer related calculation.

Key words: Powder body project powder body characteristic mixer

目 录

摘要................................................................I

第一章 粉体的基本性质

1.1 引言..........................................................1

1.2 粉体的粒度及粒度分布..........................................1

1.2.1 单个颗粒的粒径...........................................3

1.2.2 颗粒群的平均粒度.........................................4

1.2.3 粉体颗粒的粒度分布.......................................6

1.3 颗粒形状......................................................6

1.3.1 形状系数 ................................................7

1.3.2 形状指数.................................................8

第二章 粉体特性

2.1 引言..........................................................9

2.2 粉体的表面特征................................................9

2.2.1粉体颗粒的表面能和表面状态.............................. 10

2.2.2粉体的吸附和凝聚........................................ 11

2.3 粉体的力学特征...............................................12

2.3.1休止角.................................................. 13

2.3.2 内摩擦角............................................... 14

2.3.3 壁摩擦角和滑动角....................................... 14

2.4 料仓中粉体的流动特征....................................... 14

2.4.1 摩尔圆................................................ 15

2.4.2 剪切仪试验............................................ 16

第三章 WPJ-18搅拌机的设计

3.1 引言.........................................................17

3.2 立式容器中心搅拌............................................ 17

3.3 计算WPJ-18型雾状喷淋式搅拌机的圆筒体积......................17

3.4 设计WPJ-18型雾状喷淋式搅拌机的喷头..........................18

3.5 机械密封的有关计算...........................................18

3.6 计算WPJ-18搅拌机的功率.................................... 18

3．7 轴的选择与校核............................................ 23

3．8 轴承的校核................................................ 25

3.9 键的设计与校核............................................ 25

3.10 WPJ-18搅拌机的整体结构设计................................27

结语............................................................... 28

参考文献.......................................................... 29

致谢.............................................................. 30

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