一、前言热养护是水泥制品生产中的重要工序之一。目前,在我国的水泥制品厂中,用得最广泛的是以蒸汽或蒸汽——空气混合物为热介质的湿热养护。在蒸养设施中,以间歇式养护设施为主。但是,无论是间歇式还是连续式养护设施,由于热蒸汽空气混合物基本上处于静止状态,就带来了一些严重的缺陷,如热介质沿养护设施高度分层、制品加热不均匀、养护时间长、蒸汽耗量大等。为了从根本上克服上述缺陷,国内外对热介质定向循环养护工艺进行了试验研究,业已用于生产。实践证明,采用这种养护工艺 I. INTRODUCTION Thermal conservation is one of the important processes in the production of cement products. At present, in China’s cement products factory, the most widely used is the steam or steam - air mixture as a hot medium of heat and humidity conservation. In the steaming facilities, intermittent maintenance facilities are the mainstay. However, whether it is intermittent or continuous maintenance facilities, due to the fact that the hot-steam air mixture is basically in a stationary state, it brings some serious defects, such as the highly delaminating thermal medium along the maintenance facilities, uneven heating of the products, and long curing times. , steam consumption and other large. In order to fundamentally overcome the above-mentioned defects, domestic and foreign researches on the hot medium oriented circulation maintenance technology have been conducted and have been used for production. Practice has proved that using this curing process