催化再生烟气能量回收工程,是一项比较大的节能措施。钢烟囱是本工程的重要设备之一,烟囱内部一般采用耐热混凝土龟甲网衬里,安装很困难。为节省投资,方便安装施工,我们经过调查研究,搜集资料,方案对比,决定采用一种新型内衬结构,现介绍如下:1.结构简介新型内衬结构如下图所示。图中1是烟囱筒体。2是保温钉。3是矿渣棉毡,厚60毫米。4是支持圈,材料为1Cr13,厚8毫米。5是陶瓷纤维,共两层,每层20毫米厚。6是内套筒,材料为1Cr13,厚2毫米。7是衬垫,材料为1Cr13,厚2毫米。件7上端和件6下端不焊接,可 Catalytic regeneration flue gas energy recovery project, is a relatively large energy-saving measures. Steel chimney is one of the important equipment of the project, the internal chimney generally used heat-resistant concrete shell turtle net lining, the installation is very difficult. In order to save investment and facilitate the installation and construction, after investigation, data collection and program comparison, we decided to adopt a new type of lining structure. The introduction is as follows: 1. Introduction to Structure The new lining structure is shown in the following figure. Figure 1 is a chimney cylinder. 2 is insulation pin. 3 is a slag blanket, 60 mm thick. 4 is the support ring, material 1Cr13, thickness 8 mm. 5 is a ceramic fiber, a total of two layers, each 20 mm thick. 6 is the inner sleeve, the material is 1Cr13, thickness 2 mm. 7 is a liner, material 1Cr13, thickness 2 mm. The upper end of the piece 7 and the lower end of the piece 6 are not welded