RJJ—90—9T井式渗碳炉,是耐火企业加工模板渗碳用的。我们对该炉炉体结构进行改进,采用新型隔热材料,加强了炉体的保温,经过半年多的运转证明,炉体改造合理,并取得明显的经济效益。一、炉体结构 1、该炉原设计炉墙用比重为1.3克/厘米~3的耐火保温砖,炉墙外围用膨胀蛭石粉作为保温层见图一。 RJJ-90-9T pit carburizing furnace, refractory processing template is used carburizing. We improved the furnace body structure, the use of new insulation materials, to enhance the insulation of the furnace, after more than six months of operation proved that the transformation of a reasonable furnace, and achieved significant economic benefits. First, the furnace structure 1, the original design of the furnace wall with a specific gravity of 1.3 g / cm ~ 3 refractory brick, expanded vermiculite furnace wall periphery as a thermal insulation see Figure 1.