采用反射炉烘砂芯,不仅耗煤多、效率低、劳动条件差、污染严重,而且由于炉温分布不均匀,时常出现砂芯烤焦或干不透的现象。为了节约能源、降低成本、保证砂芯烘干质量,我们将原反射炉改造成为煤热式远红外线烘芯炉。经一年多生产实践证明:该炉结构简单、性能可靠、效率高、烘芯质量好、可节省燃料费50％以上。 Refractory furnace sand core, not only more coal consumption, low efficiency, poor working conditions, serious pollution, but also because of the uneven distribution of temperature, sand core often appear scorched or dry through the phenomenon. In order to save energy, reduce costs and ensure the quality of sand core drying, we will transform the original reflector furnace into coal-fired far-infrared drying furnace. After more than a year of production practice has proved that: The furnace structure is simple, reliable performance, high efficiency, good core quality, can save fuel costs more than 50%.