蒸汽回旋干燥机的制造分析..docVIP

蒸汽回旋干燥机的制造分析 陈亮 （南京中建化工设备制造有限公司） 摘要：蒸汽回旋干燥机是一个对机身的精度要求特别高的大型动设备。整体设备的长度约30米，直线度设计要求小于2mm；直径3800mm，椭圆度小于2mm；齿圈和滚圈的径向跳动量小于2mm，轴向的误差小于2mm。由于其制造难度较大，目前国内蒸汽回旋干燥机机身的制造技术并不是很普及，能成功制造的厂家并不多。 本文主要以蒸汽回旋干燥机机身实际制造、组装、质量控制过程中产生的具体的问题和难点为切入点，进行分析研究改进，得出了一些可行性及可控性相对较好的方法。本文所提出的一些方法能举一反三地应用于其他大型动设备的制造，使得更多的人了解其制造过程，熟悉各种化工容器和设备的制造规范和标准，不断提高运用专业知识分析问题、解决问题的能力。 关键词：棱角度，焊接变形，椭圆度，直线度 Abstract：The steam rotary dryer is the large size moving equipment, which requires for high accuracy in the manufacture of the fuselage. The length of the whole equipment is about 30 meters, and the design requirement for straightness is less than 2 mm. The diameter is 3800 mm, and the ovality is less than 2 mm. The radial runout of ring gear and the rolling ring is less than 2 mm and the axis error is less than 2 mm. There are many difficulties in the manufacture, so the technology of making the steam rotary dryer is not very popular at home. That is to say, the factory that could be succeed in manufacturing this equipment can be numbered. This paper mainly concretes the problems and difficulties in practical manufacturing, assembling, and quality control of the steam rotary dryer as the breakthrough point. According to the analysis, study and improvement, some feasibility and controllable method are obtained. Some methods proposed in this paper can be applied in other large moving equipment manufacturing. It is hoped that more and more people understand its manufacturing process, and be familiar with the manufacturing specifications and standards of all kinds of chemical containers and equipment, and then constantly improve the abilities of analyzing and solving problems by use of specialized knowledge. Key words: Arris Angle, the welding deformation, ovality, straightness 引言 首先了解一下我国与国外发达国家相比，设备加工制造能力的差距。 国外：欧美日等发达国家其先进的制造技术，设备加工制造能力高于我国。早在上世纪80年代左右，德国已使用液压机械设备组对筒节，其筒节的椭圆度能控制在1mm内，设备的直线度都能控制在2mm以内。蒸汽回转干燥机机身（以下简称“干燥机”）的制造对于他们来说，不是一个技术难题。现在国外出现了焊接机械人，智能控制焊接的电流、电压、速度，使焊接这一关键的技术程序化，输入相关的操作命令就可完成焊接工作，焊接质量和