为倒入熔化的金属作准备的用来修整反射炉炉膛的松散砂子或矿渣。
本发明公开了一种制备硫化钠的半立式反射炉以及工艺。
涂（炉膛）：为倒入熔化的金属作准备而用松散的沙子或矿渣涂（反射炉的）炉膛。
1·Replace the reverberatory furnace and gas producer etc. , there is no light fire producing when heating, and it accords with national fire protection safety rules.
取代反射炉、煤气发生炉等，加热无明火产生，符合国家消防安全条例。
2·The paper presents the dust collect system of Germanium coal reverberatory burner in modified plant and discusses related problems.
文章介绍了某厂改造后的锗煤反射炉收尘系统，并对该收尘系统中存在的问题进行了分析和探讨。
3·A novel technology of soda-lead concentrates reverberatory furnace smelting is put forward according to the characteristics of copper dross with low sulfur and high copper content.
针对某冶炼厂生产浮渣含硫低、含铜高的特点，提出了苏打—铅精矿反射炉熔炼新工艺。