简介：　　摘 要：我国建筑行业随着市场资源的扩大也在不断发展，当前有许多竣工的建筑受自然环境、人为等外部因素的影响，有必要重新加强建筑本身的结构，从而在满足新的功能要求的同时，保证结构的安全可靠。本文简单分析建筑加固改造的原因和必要性，并探讨结构设计的建筑加固改造的一些问题。 

简介：摘要:随着经济的发展，我国工业用电和居民用电正在不断攀升，电厂面临的发电压力也在不断加大。磨煤机作为火电厂发电设备中的重要组成部分，承担着为发电机组提供有效原材料的重要任务，其运行效率直接关系到电厂的发电成本和经济效益。本文对ZGM型中速辊式磨煤机加载油进行了介绍，分析了该型号磨煤机加载油系统的结构及存在的故障,并针对故障情况提出了解决方法及调试过程。撰写本文的目的在于通过分析故障情况及原因，制订检修方法,提高磨煤机运行的可靠性、安全性,对同类设备的检修调试提出建议及借鉴。 关键词：磨煤机;加载油;比例溢流阀 ABSTRACT：With the development of economy, the industrial and residential power consumption in China is rising, and the power generation pressure faced by power plants is also increasing. As an important part of power plant power plant, coal mill is responsible for providing effective raw materials for power generating units. Its operating efficiency is directly related to the power generation cost and economic benefits of the power plant. This paper introduces the oil loading system of ZGM type medium speed roller coal mill, analyzes the structure and existing faults of the loading oil system of ZGM type coal mill, and puts forward the solution and debugging process for the fault situation. The purpose of this paper is to make maintenance methods by analyzing the fault situation and reasons, improve the reliability and safety of coal pulverizer operation, and put forward suggestions and reference for the maintenance and commissioning of similar equipment KEYWORD：Coal mill、Loading oil、Proportional overflow valve