热风炉炉壳外保温的实践技术研究

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RESEARCHONTHEPRACTICALTECHNOLOGYOFEXTERNALINSULATIONFORHOTBLASTSTOVESHELL

Yang YongYin Xiaoying （CISDI Engineering Co.，Ltd.Chongqing 401122，China）

Abstract：Thisarticleintroducestheadvantagesofusingexternalinsulationtechnologyforthehotblastfurnaceshell Through theoretical calculationsand practical datacomparisons，itpointsout thatthecoreof technology is to closely coordinateon-sitedetectionandadjustment，andtocontrol the temperatureoftheshellabove theaciddew pointof the fluegas foralong time.Combined with engineering practice，a detailed analysis is conductedon the main influencing factors of external insulation.

Key words： external insulation; furnace shell temperature;detection; on-site adjustment

0引言

热风炉炉壳是决定其使用寿命的关键部位，热风炉壳体在生产过程中长期受到高温气体、温度应力、腐蚀介质等作用，近几年国内多座高炉的热风炉炉壳陆续出现开裂问题（见图1），不仅减少热风炉的服役寿命，还给高炉的生产带来巨大经济损失。（剩余5035字）