【摘要】 论述了现有高炉内燃式热风炉结构的薄弱环节及其高温长寿的改造途径。通过对高温内燃、顶燃、外燃式热风炉的比较表明:本文提出的三种1300℃新结构高温内燃式热风炉具有拱顶结构简单、晶间应力腐蚀小;热损失少;稳定性好(拱顶、隔墙、燃烧室和蓄热室亦分别具有稳定的结构);并可充分利用原有热风炉的构筑物,改造费用低等优点,有利于热风炉实现高温、长寿。更多还原

【Abstract】 The paper deals with the weak points of the internal combustion hot stoves for the existingblast furnaces, and studies?the ways to improve the structure of the internal combustion hot stovesfor achieving a higher temperature and a longer service life. In comparison with the top combustionstoves or the external combustion stoves, the new 1300℃ internal combustion stoves have thefollowing advantages: simplicity of dome structure, minimum intergranular stress corrosion, less heatloss and superior stability, such as structures of the dome, partition wall, combustion chamber andchecker works. Furthermore, the new type stoves can attain higher blast temperature and longer lifeand can also utilize the original facilities and structures, and the cost for thier reconstruction isvery low, too.更多还原