卧式螺旋离心机设计计算说明书

φ800卧式螺旋卸料离心机设计

摘要:卧式螺旋卸料沉降离心机是一种广泛应用于过程工业的分离悬浮液的离心分离机械。其具有连续操作、处理量大、耗电量低、适应性强等特点，是工业上主要的分离设备之一，现已被广泛应用于化工、石油提炼、轻工、医药、食品、纺织、冶金、煤炭、选矿、船舶、环保、军工等各个领域的固液分离。

本课题的任务为设计转鼓直径为800mm的卧式螺旋卸料沉降离心机。本文首先对卧式螺旋卸料离心机工作原理和主要部件结构作了一定的介绍；对整体进行了的结构性设计，对一些主要部件进行了重点设计，如转鼓、螺旋等，对关键设备差速器进行了设计选型；对该离心机的主要部件，包括转鼓，螺旋支承轴的强度进行了校核；最后对当今国内外卧式螺旋离心机的研究发展状况进行了总结和展望。

关键词：卧式螺旋卸料沉降离心机；设计计算；分离；转鼓；转子

Design of a φ800 horizontal scroll decanter centrifuge

Abstract：Horizontal scroll decanter centrifuge is a centrifuge machine which is widely used in processing industrial separation of slurry. As important separating equipment, it has a continuous operation, large capacity, low power consumption, adaptability and other characteristics. Now it also has been widely used in chemical, oil refining, light industry, medicine, food, textile, metallurgy, coal, mineral, marine, environmental protection, military and other fields of solid-liquid separation.

The topic for the task is to design a horizontal scroll decanter centrifuge which d rum diameter is 800mm. Firstly, there is a introduce to the operating principle and th e critical piece of horizontal scroll decanter centrifuge in this paper; And then conduct ed on the overall structural design, especially focus on some major design components, s uch as drum, screw and so on, the key equipment differential mechanism has been des igned and chosen; the strength check of the centrifuge, including drum, screw support s haft has also been processed; Finally, the situation of current domestic and foreign ce ntrifuge research and development is summed up and expected.

Key Words:horizontal scroll decanter, design-calculation, separation, drum, rotor

目录

摘要........................................................................................................ I 1 绪论. (1)

1.1离心机的应用及其发展 (1)

1.2离心机的分类 (1)

1.3离心沉降 (2)

1.3.1离心沉降分离技术的基本原理 (2)

1.3.2离心沉降分离机的种类 (3)

1.4螺旋卸料沉降式离心机 (4)

1.4.1螺旋卸料沉降式离心机的概况 (4)

1.4.2卧螺离心机的工作原理 (5)

1.4.3卧螺离心机的主要优缺点 (6)

1.4.4螺旋卸料沉降式离心机国内外研究现状 (7)

2卧螺离心机的主要参数及基本构件 (8)

2.1分离因数 (8)

2.2主要部件 (9)

2.2.1转鼓 (9)

2.2.2螺旋输送器 (10)

2.2.3差速器 (11)

2.3螺旋卸料沉降离心机的技术参数选择 (12)

2.3.1转鼓直径 (12)

2.3.2转鼓长度 (13)

2.3.3转鼓转速 (14)

2.3.4转鼓半锥角 (14)

2.3.5池深与转鼓半径比 (14)

2.3.6螺旋输送器 (15)

2.3.7生产能力 (15)

3.生产能力计算 (15)

4传动设计 (18)

4.1螺旋卸料离心机差速器 (18)

4.2渐开线行星齿轮差速器形式的选择 (18)

4.3NC系列齿轮行星差速器的结构原理 (19)

4.4NC系列行星齿轮差速器的基本参数 (20)

5卧螺离心机物料输送的功率计算 (20)

5.1启动转鼓等转动件所需功率

N (20)

1

N (21)

5.2启动物料达到工作转速所需功率

2

N (22)

5.3克服轴与轴承摩擦所需功率

3

N (23)

5.4克服空气摩擦所需功率

4